EP0904397A4 - Methode zur erkennung des prostat-spezifischen antigens zur überwachung und diagnose von prostatkrebs - Google Patents
Methode zur erkennung des prostat-spezifischen antigens zur überwachung und diagnose von prostatkrebsInfo
- Publication number
- EP0904397A4 EP0904397A4 EP97918724A EP97918724A EP0904397A4 EP 0904397 A4 EP0904397 A4 EP 0904397A4 EP 97918724 A EP97918724 A EP 97918724A EP 97918724 A EP97918724 A EP 97918724A EP 0904397 A4 EP0904397 A4 EP 0904397A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- seq
- prostate cancer
- psa
- prostate
- monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 102000007066 Prostate-Specific Antigen Human genes 0.000 title claims abstract description 40
- 108010072866 Prostate-Specific Antigen Proteins 0.000 title claims abstract description 40
- 206010060862 Prostate cancer Diseases 0.000 title claims abstract description 31
- 208000000236 Prostatic Neoplasms Diseases 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 title description 12
- 238000003745 diagnosis Methods 0.000 title description 9
- 108020004999 messenger RNA Proteins 0.000 claims description 15
- FWMNVWWHGCHHJJ-SKKKGAJSSA-N 4-amino-1-[(2r)-6-amino-2-[[(2r)-2-[[(2r)-2-[[(2r)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]piperidine-4-carboxylic acid Chemical compound C([C@H](C(=O)N[C@H](CC(C)C)C(=O)N[C@H](CCCCN)C(=O)N1CCC(N)(CC1)C(O)=O)NC(=O)[C@H](N)CC=1C=CC=CC=1)C1=CC=CC=C1 FWMNVWWHGCHHJJ-SKKKGAJSSA-N 0.000 claims description 2
- 238000010240 RT-PCR analysis Methods 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 26
- 238000006243 chemical reaction Methods 0.000 description 26
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 22
- 239000000523 sample Substances 0.000 description 20
- 238000010839 reverse transcription Methods 0.000 description 18
- 238000003752 polymerase chain reaction Methods 0.000 description 16
- 206010028980 Neoplasm Diseases 0.000 description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 238000012340 reverse transcriptase PCR Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 201000011510 cancer Diseases 0.000 description 10
- 108020004707 nucleic acids Proteins 0.000 description 10
- 102000039446 nucleic acids Human genes 0.000 description 10
- 150000007523 nucleic acids Chemical class 0.000 description 10
- 108020004635 Complementary DNA Proteins 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 7
- 239000008280 blood Substances 0.000 description 7
- 238000010804 cDNA synthesis Methods 0.000 description 7
- 239000002299 complementary DNA Substances 0.000 description 7
- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical compound P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 description 7
- 239000002953 phosphate buffered saline Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- FFYPMLJYZAEMQB-UHFFFAOYSA-N diethyl pyrocarbonate Chemical compound CCOC(=O)OC(=O)OCC FFYPMLJYZAEMQB-UHFFFAOYSA-N 0.000 description 6
- 210000001519 tissue Anatomy 0.000 description 6
- 206010027476 Metastases Diseases 0.000 description 5
- 239000012139 lysis buffer Substances 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- 238000001356 surgical procedure Methods 0.000 description 5
- 206010004446 Benign prostatic hyperplasia Diseases 0.000 description 4
- 108020004414 DNA Proteins 0.000 description 4
- 208000004403 Prostatic Hyperplasia Diseases 0.000 description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 4
- 210000000265 leukocyte Anatomy 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000001394 metastastic effect Effects 0.000 description 4
- 206010061289 metastatic neoplasm Diseases 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011534 wash buffer Substances 0.000 description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- 102100034343 Integrase Human genes 0.000 description 3
- 108010092799 RNA-directed DNA polymerase Proteins 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 3
- 239000000872 buffer Substances 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 210000005267 prostate cell Anatomy 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 238000002123 RNA extraction Methods 0.000 description 2
- 239000013614 RNA sample Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 239000012503 blood component Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 239000008004 cell lysis buffer Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000034994 death Effects 0.000 description 2
- 231100000517 death Toxicity 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000036210 malignancy Effects 0.000 description 2
- 208000010658 metastatic prostate carcinoma Diseases 0.000 description 2
- 210000005259 peripheral blood Anatomy 0.000 description 2
- 239000011886 peripheral blood Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 201000005825 prostate adenocarcinoma Diseases 0.000 description 2
- 238000011471 prostatectomy Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 239000001509 sodium citrate Substances 0.000 description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- IEQAICDLOKRSRL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-dodecoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO IEQAICDLOKRSRL-UHFFFAOYSA-N 0.000 description 1
- 206010006187 Breast cancer Diseases 0.000 description 1
- 208000026310 Breast neoplasm Diseases 0.000 description 1
- 108010014303 DNA-directed DNA polymerase Proteins 0.000 description 1
- 102000016928 DNA-directed DNA polymerase Human genes 0.000 description 1
- 229920002307 Dextran Polymers 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 108700039887 Essential Genes Proteins 0.000 description 1
- 108700024394 Exon Proteins 0.000 description 1
- 108091092195 Intron Proteins 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 208000002151 Pleural effusion Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 102000006382 Ribonucleases Human genes 0.000 description 1
- 108010083644 Ribonucleases Proteins 0.000 description 1
- 208000000453 Skin Neoplasms Diseases 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000003146 anticoagulant agent Substances 0.000 description 1
- 229940127219 anticoagulant drug Drugs 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 102000015736 beta 2-Microglobulin Human genes 0.000 description 1
- 108010081355 beta 2-Microglobulin Proteins 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000013060 biological fluid Substances 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 201000008274 breast adenocarcinoma Diseases 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 210000003040 circulating cell Anatomy 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000002357 endometrial effect Effects 0.000 description 1
- 210000002919 epithelial cell Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 210000004251 human milk Anatomy 0.000 description 1
- 235000020256 human milk Nutrition 0.000 description 1
- 239000012160 loading buffer Substances 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 210000001165 lymph node Anatomy 0.000 description 1
- 210000004324 lymphatic system Anatomy 0.000 description 1
- 239000006166 lysate Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000009401 metastasis Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 201000001514 prostate carcinoma Diseases 0.000 description 1
- 201000007094 prostatitis Diseases 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012723 sample buffer Substances 0.000 description 1
- 208000011581 secondary neoplasm Diseases 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 201000000849 skin cancer Diseases 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000000439 tumor marker Substances 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 238000003260 vortexing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/48—Hydrolases (3) acting on peptide bonds (3.4)
- C12N9/50—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25)
- C12N9/64—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25) derived from animal tissue
- C12N9/6421—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25) derived from animal tissue from mammals
- C12N9/6424—Serine endopeptidases (3.4.21)
- C12N9/6445—Kallikreins (3.4.21.34; 3.4.21.35)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6883—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material
- C12Q1/6886—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material for cancer
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/112—Disease subtyping, staging or classification
Definitions
- RT-PCR reverse-transcriptase PCR
- cDNA complementary DNA
- RT-PCR can thus reveal by amplification the presence of a single species of mRNA. Accordingly, if the mRNA is highly specific for the cell that produces it, RT-PCR can be used to identify the presence of a specific type of cell.
- PSA Prostate-specific antigen
- RT-PCR of mRNA encoding for PSA has been used in the identification of prostate cancer cells.
- Deguchi et al. detected PSA mRNA in regional lymph nodes from patients with prostate cancer which had metastasized to the lymphatic system. Cancer Res. 1993, 53:5350-4.
- RT-PCR methods for detection of prostate cancer cells in the general circulation of patients with advanced prostate cancer have also been disclosed. Moreno et al. Cancer Res. 1992, 53:6110-2; Jaakkola et al. Clin. Chem. 1995, 41(2): 182- 186.
- patients with early prostate cancer and/or well differentiated or localized disease were found negative for PSA mRNA by PCR. Accordingly, it was concluded that RT-PCR for PSA mRNA would not be a useful tool for either the diagnosis or monitoring of prostate cancer. Diamandis, E.P. and Yu, H. Clin. Chem. 1995, 41(2): 177-179.
- the present invention provides a new RT-PCR method with novel primers for the monitoring and diagnosis patients with prostate cancer.
- This method is designed to determine the presence of mRNA for PSA in the bloodstream thereby providing evidence that prostate cells are circulating in the blood and confirming a diagnosis of cancer. Circulating prostate cells also indicate that the patient is at risk of secondary tumor or bone metastatic anchoring. Samples taken after prostatectomy or radiation treatment which are reactive indicate the risk that the prostate cancer had spread and that surgery/radiation was not efficacious.
- An object of the present invention is to provide primers for use in an RT-PCR method for the detection of prostatic specific antigen for the monitoring and diagnosis of patients with prostate cancer.
- Figure 1 provides the human DNA for prostate specific antigen (PSA) (SEQ ID NOS: 1, 8, 9 and 10). Introns are abbreviated for clarity. Exons are indicated in bold. Primers previously disclosed in the art are indicated by underlining. The primers of the present invention, namely DR PSA-up (SEQ ED NO: 2), DR PSA- Down (SEQ ID NO: 3) and DR 12 mer (SEQ ID NO: 4), are indicated by underlined italics in a larger font size.
- PSA prostate specific antigen
- a new method for the detection of prostate specific antigen by reverse- transcriptase polymerase chain reaction has been developed which can be used in the monitoring of prostate cancer in a patient.
- Primers which are used in the method of the present invention include DR PSA-Up: 5'-GTTGTCITCCTCACCCrGTCCG-3' (SEQ LO NO: 2), DR PSA-Down: S'-TCCAGCACACAGCATGAACTTG-S' (SEQ LD NO: 3), and DR 12 mer: 5'-GAATCACCCGAG-3' (SEQ LD NO: 4).
- the method of the present invention comprises isolation and washing of buffy coat cells, isolation of total RNA from buffy coat cells, reverse transcription (RT) reaction for PSA, PCR for PSA, and detection of the absence or presence of PSA product on a DNA sequencer.
- the method may further comprise RT reaction and PCR for a housekeeping gene Beta-2-microglobulin (B2G: Israeli et al. Cancer Research 1994 54:6306-6310) to momtor quality of the isolated RNA.
- B2G Israeli et al. Cancer Research 1994 54:6306-6310
- Vacutainer Systems Cat. #362761 Sodium Citrate anticoagulant, 8 ml draw, San Jose, CA are used to collect blood samples from patients suspected of having prostate cancer. These samples are then centrifuged in accordance with the manufacturer's instructions to separate the buffy coat from other blood components. Buffy coat cells are then washed with PBS and pelleted by centrifugation. The pelleted cells are taken up in a cell lysis buffer. Cells are homogenized by passage over a Qiagen QIA shredder microspin column. The run-through is then passed over a Qiagen RNeasy column to bind RNA. The sample is washed to remove DNA and other components, and the RNA is eluted with DEPC-treated water.
- the eluted sample RNA is then used as the substrate in the RT reactions.
- the RT reaction primer for PSA reactions is DR 12 mer (SEQ ID NO: 4) which is specific for the PSA target.
- An aliquot of the RT reaction is then used for the PCR reaction for PSA, using primers DR PSA Up (SEQ ID NO: 2) and DR PSA Down (SEQ ID NO: 3).
- the method further comprises RT reaction and PCR for B2G to monitor quality of the isolated RNA
- the RT reaction primer is 5'-AGCTTTGAGTGC-3' (SEQ ED NO: 5) and the PCR reaction primers are 5'-AGCAGAGAATGGAAAGTCAAA-3' (SEQ ED NO: 6) and 5 -TGT TGATGT TGGATAAGAGAAT-3 1 (SEQ ID NO: 7).
- the sizes of the products from each reaction for each patient are compared on the ABI 373 DNA Analyzer with the ABI 672 GENESCAN software.
- LNCaP prostate cancer tissue culture
- WBCs white blood cells
- the ABI 672 GENESCAN software can determine the size in bases of each product, allowing definitive identification of each product.
- BPH samples included patients diagnosed with BPH but not cancer. Prostate cancer status was provided by the patient's physician.
- the method of the present invention is specific for determining metastatic prostate cancer, in particular prostate cancer in the progressive stage and that which has been stable for less than 5 years.
- progressive it is meant cancer with identified metastases to the bone or other sites, with the metastases enlarged and/or more numerous than in the last examination.
- the results in Table 1 are consistent with this relapse rate. Tests with the assay of the present invention predict that the 2 out of 6 nonreactive patients in this group will remain stable for over 5 years while the 4 out of 6 reactive patients have a high probability of relapse.
- Samples from patients having stage B cancer, or organ-confined cancer, which is not metastatic were nonreactive in the method of the present invention. Further, stable patients, meaning those with metastases in the past but no further progression in 5 or more years, who are considered cured, were also nonreactive. Recent studies indicate that circulating prostate cells can also result from prostatectomy operations. Oefelein et al. J. Urol. 1996 155:238-242. If cancerous, these circulating cells caused by the surgery could result in metastases. The method of the present invention can be used in monitoring these surgical procedures to ensure that a patient is nonreactive prior to surgery as well as after the surgery.
- kits for monitoring of progression of prostate cancer which comprise the DR PSA-Up (SEQ ED NO: 2), DR PSA-Down (SEQ ID NO: 3), and DR 12 mer (SEQ ID NO: 4) primers.
- these kits also comprise primers for RT and PCR detection of B2G such as SEQ ED NOs: 5, 6 and 7.
- kits of the present invention may comprise tubes for collection of blood samples which are capable of separating the buffy coat from other blood components such as Vacutainer Cell Preparation Tubes.
- Kits of the present invention may also comprise a means for isolating RNA.
- the kit may comprise a cell lysis buffer, Qiagen QIA shredder microspin columns (Cat. #79655) for cell homogenization and Qiagen RNeasy columns (Cat. #74106) for binding of the RNA.
- the kits may also contain any of the following reagents including, but not limited to, Beta-Mercaptoethanol (BME), Diethyl Pyrocarbonate (DEPC), Superscript II RNase H- Reverse Transcriptase (Gibco BRL, Gaithersburg, MD), ethanol (200 Proof), 100 mM dNTPs, AmpliTaq DNA Polymerase (Perkin Elmer Cat. #N808-0153), 6% (6% T, 5%C) denaturing acrylamide gel Gibco/BRL 6% Sequencing Solution (Gel-Mix 6; Cat. #5543UA), 10 % ammonium persulfate,
- Denaturing loading buffer containing Blue dextran (50 mg/ml) and 200 ml formamide and 20 ml 100 mM EDTA, IX TBE for Sequencer Gibco/BRL UltraPure Gel-Mix running mate (Cat. #15546-013) and Brij 35 (Sigma Chemical Co. St. Louis, MO, Cat. #430AG-6). Standard and controls may also be provided in the kits of the present invention. Examples include, but are not limited to Genescan ROX-2500 standard (Perkin Elmer/ABI Cat.
- RNA from ATCC cell lines CRL-1435 PC-3 prostate adenocarcinoma, human
- HTB-22 MCF7 breast adenocarcinoma, pleural effusion, human
- RNA from ATCC cell line CRL-1740 LNCaP metalastatic prostate adenocarcinoma, human
- Reagents are prepared in essentially RNAse-free, sterile, disposable plasticware, in glassware baked at 180°C for at least 8 hours, or in polypropylene plasticware rinsed with chloroform.
- Solutions used for RNA and reverse transcription work are prepared using RNAse-free glassware, autoclaved water, and chemicals reserved for RNA work handled with baked spatulas. Water for solutions is treated with 0.1% DEPC for at least 12 hours at 37°C and then heated to 100°C for 15 minutes or autoclaved for 15 minutes at 15 lb/sq. inch on liquid cycle.
- Phosphate buffered saline (PBS) used in this method is prepared by dissolving 8 grams of NaCl, 0.2 grams of KCl, 1.44 grams of Na.HPO 4 , and 0.24 grams of KH-PO 4 in 800 ml of distilled ILG The pH of the buffer is adjusted to 7.4 with HCl. The volume is then adjusted to 1 liter with H.O. Prior to use, the buffer is sterilized by autoclaving for 20 minutes at 15 lb/sq. inch on liquid cycle and stored at room temperature. Lysis Buffer (BME) is prepared from 100 ⁇ l of BME per 10 ml of QIAGEN
- the resulting Lysis Buffer/BME is stable for 1 month.
- Wash Buffer RPE is prepared for use by adding 4 volumes of 96-100% ethanol to the concentrate supplied by Qiagen.
- Seventy percent Ethanol is prepared by adding 700 ml of 200 proof Ethanol to 300 ml DEPC-treated water. The solution is stored at room temperature.
- Blood samples are obtained in Vacutainer CPT tubes with sodium citrate. The samples are then centrifuged at room temperature (20 - 25°C) in a horizontal swing-out head rotor at 1500 to 1800 RCF (Relative Centrifugal Force) for 30 minutes. After centrifugation, the buffy coat appears as a whitish layer just under the plasma layer. Approximately half of the plasma is aspirated without disturbing the cell layer. The cell layer is then collected with a sterile pipette and transferred to a 15 ml conical centrifuge tube.
- RCF Relative Centrifugal Force
- PBS is added to the conical tubes to bring the volume to 15 ml.
- the tubes are then capped and the cells and PBS mixed by inverting the tubes 5 times.
- the tubes are then centrifuged for 15 minutes at 300 RCF and the supernatant is aspirated without disturbing the cell pellet.
- PBS is again added to the cells to bring the volume to 10 ml.
- the tubes are capped and the cells and PBS are mixed by inverting the tubes 5 times.
- the tubes are then centrifuged for 10 minutes at 300 RCF. As much supernatant as possible is aspirated without disturbing the cell pellet.
- Lysis Buffer/BME 400 ⁇ i
- samples may be frozen at -70°C or used immediately for RNA isolation.
- Example 3 RNA Isolation The cells/Lysis Buffer/BME suspension is pipetted directly onto a QIAGEN
- Wash Buffer RPE 500 ⁇ l is pipetted onto the spin column and centrifuge as above. The flowthrough is discarded. A second aliquot of Wash Buffer RPE is pipetted onto the spin column and centrifuged for 2 minutes at full speed to dry the RNeasy spin column. This 2 minute spin assures that no residual ethanol will be carried over during elution. The spin column is then transferred to a new 1.5 ml collection tube and the sample RNA is eluted with 50 ⁇ l of DEPC-treated water pipetted directly onto the spin column membrane followed by centrifugation for 60 seconds at 8000 x g. Sample RNA may be used immediately in the RT reaction, or stored at -70°C until further use.
- Example 4 Determining the RNA concentration
- RNA concentration in each sample is determined by UV spectrophotometry.
- the baseline absorbance of 75 ⁇ l of distilled water is first determined at 260, 280, and 320 nm.
- a five microliter sample of RNA is then added and mixed.
- the sample absorbance is then determined at 260, 280, and 320 nm.
- the neat RNA concentration is calculated by: a) subtracting the A320 from the A260 to obtain the absorbance due to RNA; b) multiplying by the dilution factor (80 ⁇ /5 ⁇ l); and c) multiplying by the conversion factor (0.04 mg/ ml).
- Example 5 Sample Reverse Transcription
- Two microliters of 50 ⁇ M PSA RT primer (SEQ ED NO: 4) are pipetted into each PCR reaction tubes.
- Two microliters of 50 ⁇ M B2G RT primer (SEQ ID NO: 5) are pipetted into separate PCR reaction tubes. Tubes may be prepared in advance and stored at -20°C. RT Reaction Mix is prepared just prior to use in the following manner: The number of sample reactions (PSA and B2G) to be run is first determined as variable X.
- PSA PCR Reaction Mix is prepared in the following manner.
- the number of PSA sample reactions to be run is determined as variable X.
- the following volumes of reagents are then mixed: 31.95(X+1) ⁇ l H ⁇ O; 4(X+1) ⁇ l 10X PCR Buffer 0; (X+l) ⁇ l 20 mM dNTP; 0.8(X+1) ⁇ l 25 mM MgCl 2 ; 2(X+1) ⁇ l PSA primers (SEQ ID NOs: 2 and 3); and 0.25(X+1) ⁇ l Taq enzyme.
- B2G PCR Reaction Mix is prepared in the following manner: The number of B2G sample reactions to be run is determined as variable X. The following volumes of reagents are then mixed: 33.15(X+1) ⁇ l H j O; 4(X+1) ⁇ l 10X PCR Buffer JJ; (X+l) ⁇ l 20 mM dNTP; 0.8(X+1) ⁇ l 25 mM MgCL; 0.8(X+1) ⁇ l B2G primers (SEQ ED NOs: 6 and 7); and 0.25(X+1) ⁇ l Taq enzyme.
- RNA sample Two tubes per RNA sample are prepared, one tube for each reaction: PSA and B2G. Forty microliters of the appropriate reaction mixture are pipetted into each of the tubes. Ten microliters of the respective sample RNA or control RNA Reverse Transcription reaction are pipetted into each tube. For the negative (reaction) control, 10 ml of water are used. The tubes are spun for 10 seconds in an Eppendorf microcentrifuge to ensure all liquid is mixed together at the bottom of the tubes. The tubes are then placed in the Perkin Elmer 9600 Thermocycler and cycled as follows:
- Example 7 Sample Detection Two 6 cm well-to-read plates (one notched, one plain) are prepared for use in the following manner. Both sides of each plate are rinsed with distilled water. One side only of each plate is then selected as the inside (gel side) of the plate. This inside is then rinsed with methanol followed by 0.5% Brij. The methanol rinse is then repeated until the plates are streak free. Spacers are then placed on the edge of the plain plate, parallel to the short side of the plates. The notched plate is placed on top of the plain plate, with the insides of the plates facing each other. The plates are then stood on their bottom edge and the spacers lined up so they are level with the bottom and sides of the gel. They are gently laid down flat with the plain plate on the bottom and clamped with 6 binder clips.
- the clamps are removed and the outside of the plates are cleaned with distilled water, being careful to remove all acrylamide from the outside surfaces ofthe plates.
- the plates are then inserted into a 373 sequencer and a plate check is performed in accordance with the manufacturer's directions to check for interference.
- the top and bottom buffer reservoirs are filled with 700 ml and 300 ml of IX TBE, respectively.
- the sample comb is removed from between the plates, and acrylamide and urea are washed from the wells with IX TBE.
- the gel is prerun for 5 minutes at 28 watts.
- Two microliters of PCR reaction are pipetted into a 0.2 ml thin-walled PCR reaction tube.
- Denaturing sample buffer (2X; 2.5 ml) and 0.3 ml of Genescan ROX-2500 standard are then added.
- the tubes are placed in a PE 9600 Thermocycler and run at 94 °C for 10 minutes.
- the thermal cycler is set to PAUSE and each tube is placed on ice.
- Four microliters of cooled sample are then loaded onto the gel.
- the ABI sequencer is set to run for 3.5 hours at 28 watts, 600 volts, 40 milliamps and the Genescan data collection to collect for 3 hours.
- TELECOMMUNICATION INFORMATION (A) TELEPHONE: 610-270-5219 (B) TELEFAX: 610-270-5090
- GACTCCAGCC ACGACCTCAT GCTGCTCCGC CTGTCAGAGC CTGCCGAGCT CACGGATGCT 240
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Genetics & Genomics (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Microbiology (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Oncology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Hospice & Palliative Care (AREA)
- Medicinal Chemistry (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1576596P | 1996-04-16 | 1996-04-16 | |
| US15765P | 1996-04-16 | ||
| PCT/US1997/006497 WO1997039139A1 (en) | 1996-04-16 | 1997-04-16 | A method for detection of prostate specific antigen used in monitoring and diagnosis of prostate cancer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0904397A1 EP0904397A1 (de) | 1999-03-31 |
| EP0904397A4 true EP0904397A4 (de) | 2003-01-29 |
Family
ID=21773475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97918724A Withdrawn EP0904397A4 (de) | 1996-04-16 | 1997-04-16 | Methode zur erkennung des prostat-spezifischen antigens zur überwachung und diagnose von prostatkrebs |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0904397A4 (de) |
| JP (1) | JP2000510331A (de) |
| AU (1) | AU2676197A (de) |
| WO (1) | WO1997039139A1 (de) |
| ZA (1) | ZA973231B (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006201736B2 (en) * | 1998-08-10 | 2008-08-28 | Agensys, Inc. | BPC-1: a secreted brain specific protein expressed and secreted by prostate and bladder cancer cells |
| DE69934694T2 (de) | 1998-08-10 | 2007-10-04 | Agensys, Inc., Santa Monica | Bpc-1: ein ausgeschiedenes gehirnspezifisches protein das von prostata- und blasen-krebszellen exprimiert und ausgeschieden wird |
| EP1151142A2 (de) | 1999-01-28 | 2001-11-07 | Gen-Probe Incorporated | Nukleinsäure sequenzen für den nachweis von genetischen markern für krebs in einer biologischen probe |
| WO2004073657A2 (en) * | 2003-02-19 | 2004-09-02 | Protein Design Labs, Inc. | Methods of diagnosis of cancer and other diseases, composition and methods of screening for modulators of cancer and other diseases |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0520794A1 (de) * | 1991-06-26 | 1992-12-30 | F. Hoffmann-La Roche Ag | Methoden zur Feststellung von Krebsmetastasen durch Nukleinsäure-Amplifizierung |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2148350A1 (en) * | 1992-10-29 | 1994-05-11 | Carlo Croce | Methods of detecting micrometastasis of prostate cancer |
-
1997
- 1997-04-16 EP EP97918724A patent/EP0904397A4/de not_active Withdrawn
- 1997-04-16 ZA ZA9703231A patent/ZA973231B/xx unknown
- 1997-04-16 WO PCT/US1997/006497 patent/WO1997039139A1/en not_active Ceased
- 1997-04-16 AU AU26761/97A patent/AU2676197A/en not_active Abandoned
- 1997-04-16 JP JP09537395A patent/JP2000510331A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0520794A1 (de) * | 1991-06-26 | 1992-12-30 | F. Hoffmann-La Roche Ag | Methoden zur Feststellung von Krebsmetastasen durch Nukleinsäure-Amplifizierung |
Non-Patent Citations (9)
| Title |
|---|
| DEGUCHI T ET AL: "DETECTION OF MICROMETASTATIC PROSTATE CANCER CELLS IN LYMPH NODES BY TRANSCRIPTASE-POLYMERASE CHAIN REACTION", CANCER RESEARCH, AMERICAN ASSOCIATION FOR CANCER RESEARCH, BALTIMORE, MD, US, vol. 53, 15 November 1993 (1993-11-15), pages 5350 - 5354, XP002059297, ISSN: 0008-5472 * |
| DIGBY M ET AL: "HUMAN PROSTATE SPECIFIC ANTIGEN (PSA) GENE: STRUCTURE AND LINKAGE TO THE KALLIKREIN-LIKE GENE, HGK-1", NUCLEIC ACIDS RESEARCH, OXFORD UNIVERSITY PRESS, SURREY, GB, vol. 17, no. 5, 1989, pages 2137, XP000999289, ISSN: 0305-1048 * |
| PANTEL K AND RIETHMÜLLER G: "Methods for detection of micrometastatic carcinoma cells in bone marrow, blood, and lymph nodes", ONKOLOGIE, KARGER, FREIBURG, DE, vol. 18, 1995, pages 394 - 401, XP002092612, ISSN: 0378-584X * |
| PELKEY J P ET AL: "Molecular and immunological detection of circulating tumor cells and micrometastases from solid tumors", CLINICAL CHEMISTRY, AMERICAN ASSOCIATION FOR CLINICAL CHEMISTRY. WINSTON, US, vol. 42, no. 9, 1996, pages 1369 - 1381, XP002092613, ISSN: 0009-9147 * |
| RIEGMAN P H J ET AL: "Characterization of the prostate-specific gene: A novel human Kallikrein-like gene", BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, ACADEMIC PRESS INC. ORLANDO, FL, US, vol. 159, no. 1, 28 February 1989 (1989-02-28), pages 95 - 102, XP002141957, ISSN: 0006-291X * |
| See also references of WO9739139A1 * |
| STONE N ET AL: "DETECTION OF CIRCULATING METASTATIC TUMOR CELLS BY PSA AND PSM MAY BE USEFUL TO IDENTIFY SUBGROUPS OF ADVANCED PROSTATE CANCER PATIENTS", CANCER RESEARCH, AMERICAN ASSOCIATION FOR CANCER RESEARCH, BALTIMORE, MD, US, vol. 37, 1 March 1996 (1996-03-01), pages 247, XP002910105, ISSN: 0008-5472 * |
| STRAY J ET AL: "REVERSE TRANSCRIPTION POLYMERASE CHAIN REACTION (RT-PCR) DETECTS METASTATIC PROSTATE CANCER CELLS IN LYMPH NODES, BLOOD AND POTENTIALLY IN BONE MARROW USING PSA-MRNA AS TEMPLATE", JOURNAL OF UROLOGY, BALTIMORE, MD, US, vol. 151, no. SUPPL 5, 1994, pages 412A, XP002910106, ISSN: 0022-5347 * |
| TAKAYAMA T K ET AL: "NEWER APPLICATIONS OF SERUM PROSTATE-SPECIFIC ANTIGEN IN THE MANAGEMENT OF PROSTATE CANCER", SEMINARS IN ONCOLOGY, BETHESDA, MD, US, vol. 21, no. 5, 1 October 1994 (1994-10-01), pages 542 - 553, XP002059296 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997039139A1 (en) | 1997-10-23 |
| EP0904397A1 (de) | 1999-03-31 |
| AU2676197A (en) | 1997-11-07 |
| ZA973231B (en) | 1997-11-25 |
| JP2000510331A (ja) | 2000-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7358434B2 (ja) | 尿バイオマーカーコホート、遺伝子発現特性、およびその使用の方法 | |
| Gomella et al. | Reverse transcriptase polymerase chain reaction for prostate specific antigen in the management of prostate cancer | |
| EP0667920B1 (de) | Methoden zur detektion von mikrometastasen bei prostata-krebs | |
| CA2513780C (en) | Method to detect prostate cancer from a urine sample | |
| US20090035773A1 (en) | Nucleic acid sequences for detecting genetic markers for cancer in a biological sample | |
| JP4944041B2 (ja) | 前立腺癌の予後判定用マーカー及び/又はテラノスティックマーカーとなる、尿沈渣及び/又は尿のmRNA比 | |
| US20090226925A1 (en) | Methods for Detecting Circulating Tumor Cells | |
| AU742753C (en) | Primers and methods for the detection of disseminated tumor cells | |
| WO1994010343A9 (en) | Methods of detecting micrometastasis of prostate cancer | |
| WO1998046788A9 (en) | Primers and methods for the detection of disseminated tumor cells | |
| US20260049300A1 (en) | Diagnosis of prostate cancer | |
| EP0904397A1 (de) | Methode zur erkennung des prostat-spezifischen antigens zur überwachung und diagnose von prostatkrebs | |
| US20090035774A1 (en) | Method for characterizing primary tumors | |
| CA2251557A1 (en) | A method for detection of prostate specific antigen used in monitoring and diagnosis of prostate cancer | |
| Fornari et al. | New evaluation of plasma DNA microsatellite analysis in patients with TCC of the urinary bladder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19981007 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE CH DE DK FR GB IT LI NL |
|
| A4 | Supplementary search report drawn up and despatched |
Effective date: 20021216 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7C 12Q 1/68 B Ipc: 7C 07H 21/04 B Ipc: 7C 12P 19/34 A |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20030301 |