ES2556631T3 - Composiciones y métodos para obtener células para tratar tejido cardíaco - Google Patents
Composiciones y métodos para obtener células para tratar tejido cardíaco Download PDFInfo
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- ES2556631T3 ES2556631T3 ES09763198.0T ES09763198T ES2556631T3 ES 2556631 T3 ES2556631 T3 ES 2556631T3 ES 09763198 T ES09763198 T ES 09763198T ES 2556631 T3 ES2556631 T3 ES 2556631T3
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Abstract
Una composición que comprende TGß-1, BMP4, α-trombina, Cardiotrofina, Cardiogenol C, FGF-2, IGF-1 y la Activina A.
Description
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hMSC sin modificaciones o de simulación tuvieron un impacto limitado en la fracción de eyección. Un asterisco y dos asteriscos indican un p < 0.01 con respecto a hMSC sin modificación para los dos puntos de tiempo.
En corazones tratados con células cardiopoyéticas derivadas de hMSC, la mejora funcional se correlaciona a los tres meses y 18 meses de evaluación histopatológica con la regeneración del miocardio. Los aneurismas y cicatrices, que permanecieron sin corregir en los corazones tratados con hMSC sin modificaciones, se resolvieron con el tratamiento de hMSC cardiopoyéticas que indujeron remuscularización (figura 13).
Una evaluación patológica general demostró la resolución de las cicatrices más debajo de la ligación de la arteria descendente anterior izquierda (LAD) (círculo amarillo en los corazones) con, en sección transversal, remuscularización robusta y remodelación disminuida en corazones infartados tratados con hMSC cardiopoyéticas (CP, derecha) en contraste con el que están sin modificación (izquierda) a los 6 meses después del inicio del tratamiento. Estos resultados son particularmente buenos.
El sondeo para ADN ALU se realizó utilizando una sonda de ALU humana (Biogenex, San Ramon, CA) mediante hibridación a 85ºC durante 5-10 minutos e incubaciones a 37ºC durante la noche seguido por detección secundaria marcada con GFP anti-fluoresceína.
La resolución confocal reveló, en el miocardio de murino tratado con CP-hMSC, una presencia extendida de células derivadas de humano con tinción positiva para secuencias de ADN ALU especificas para la especie humana validadas con inmunocoloración con lamina específica humana, todas ausentes en controles infartados (figura 14).
En contraste con la simulación (izquierda), los corazones tratados con hMSC cardiopoyéticas en evaluación por microscopía confocal reveló la presencia dramática de núcleos humanos como los teñidos por una sonda de ADN h-ALU humana (en la mitad) incrustada dentro del miocardio infartado de murino, confirmado además con una tinción adicional para un anticuerpo de lamina específica humana (derecha, recuadro mostrado en la figura 14). Las secciones congeladas de miocardio se elaboraron a partir de paraformaldehído al 3% súper oxigenado en corazones fijados por perfusión de PBS. La barra indica 50 µM. La figura 15 muestra que el anticuerpo troponina-l especifica humana no reveló tinción en células sin modificaciones (izquierda) versus una tinción significativa en la pared anterior de los corazones tratados con hMSC cardiopoyéticas (paneles medio y derecho).
Además, como se muestra en la figura 16, la tinción con troponina-l humana de corazones tratados con hMSC sin modificaciones (parte superior) versus cardiopoyéticas (parte inferior), teñidas con colorante de contraste mlC2v, demostró la generación del miocardio ventricular a partir de células humanas injertadas. Las barras indican 20 µm (parte superior) y 50 µm (parte inferior).
Como se ilustra en la figura 17, dentro de la cicatriz restante de células cardiopoyéticas derivadas de corazones tratados con hMSC, el miocardio derivado de células madre humanas podía distinguirse del miocardio nativo de murino con colocalización de troponina humana con mlC2V. La barra indica 50 µm.
En la figura 18, la microscopía superficial detectó angiogénesis distal para la LAD ligada (circulo negro) en corazones tratados con CP-hMSC que surgen de la arteria coronaria derecha (RCA; parte inferior izquierda) y circunflejo (parte inferior derecha).
La figura 19, muestra la evaluación confocal de vasos colaterales de corazones tratados con hMSC cardiopoyéticas, que demostraron tinción con CD-31 humano específica (PECAM-1). La barra representa 20 µm.
La figura 20, muestra la evolución del cambio de la fracción de eyección con relación a la simulación en %, durante 12 meses, para el tratamiento tanto con hMSC guiadas por cóctel (CP) como sin modificaciones. Con relación a la simulación, el tratamiento con hMSC sin modificaciones mostró un efecto de fracción de eyección del 5% y 2.5% a los 6 y 12 meses, respectivamente.
En contraste, los ratones infartados tratados con CP-hMSC demostraron una mejora significativa de la fracción de eyección del 25% a los 6 y 12 meses con relación a la simulación (figura 20). Además, la cohorte infartada se estratificó para evaluar la eficacia en los subgrupos con una deficiencia cardiaca manifiesta documentada (fracción de eyección <45%) al momento de la intervención. A pesar de la fracción de eyección equivalente previa al tratamiento del 35%, sólo el tratamiento con hMSC cardiopoyéticas mejoró la fracción de eyección absoluta en un 10% a los 6 y 12 meses, en contraste con una declinación del 5% en la fracción de eyección en la cohorte tratada con hMSC sin modificaciones (figura 23). Como se muestra en la figura 22, se determinó un beneficio de supervivencia superior en el grupo tratado con hMSC cardiopoyéticas en contraste con la cohorte tratada con células sin modificaciones y la simulación, a través de la aplicación de la función de Kaplan-Meier con limitación de observaciones.
La eficacia del hMSC cardiopoyéticas (CP) se demostró mediante ecocardiografía al primer año de seguimiento (véase la figura 25). La formación de imágenes de eje largo de corazones tratados con células madre sin
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2008/064895 WO2009145761A1 (en) | 2008-05-27 | 2008-05-27 | Methods and materials for using cells to treat heart tissue |
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| PCT/US2009/044714 WO2009151907A2 (en) | 2008-05-27 | 2009-05-20 | Compositions and methods for using cells to treat heart tissue |
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| ES2626234T3 (es) | 2004-07-30 | 2017-07-24 | Mayo Foundation For Medical Education And Research | Tratamiento de tejido cardiovascular |
| US9765298B2 (en) | 2006-07-24 | 2017-09-19 | Mayo Foundation For Medical Education And Research | Methods and materials for providing cardiac cells |
| WO2009145761A1 (en) | 2008-05-27 | 2009-12-03 | Mayo Foundation For Medical Education And Research | Methods and materials for using cells to treat heart tissue |
| SG175880A1 (en) | 2009-05-20 | 2011-12-29 | Cardio3 Biosciences Sa | Parmaceutical composition for the treatment of heart diseases. |
| BRPI1010684A2 (pt) * | 2009-05-20 | 2017-07-18 | Cardio3 Biosciences Sa | método para determinar o potencial cardiorregenerativo de células mamíferas |
| EP2506867B1 (en) * | 2009-12-02 | 2014-10-08 | Cardio3 Biosciences S.A. | Pharmaceutical compositions for the stimulation of stem cells. |
| WO2012004291A1 (en) * | 2010-07-06 | 2012-01-12 | Nanologica Ab | Improved method for stem cell differentiation in vivo by delivery of morphogenes with mesoporous silica and corresponding pharmaceutical active ingredients. |
| WO2012116064A1 (en) * | 2011-02-22 | 2012-08-30 | The Board Of Regents Of The University Of Texas | Cardiac repair by reprogramming of cardiac fibroblasts into cardiomyocytes |
| JP5911399B2 (ja) * | 2011-08-19 | 2016-04-27 | 日本特殊陶業株式会社 | 燃焼圧検知センサ付きグロープラグ |
| WO2014071199A1 (en) * | 2012-11-02 | 2014-05-08 | Cornell University | Angiogenic conditioning to enhance cardiac cellular reprogramming of fibroblasts of the infarcted myocardium |
| CA2982332A1 (en) | 2015-03-11 | 2016-09-15 | Atta Behfar | Exosome delivery technology |
| CN105985985B (zh) * | 2016-05-06 | 2019-12-31 | 苏州大学 | Crispr技术编辑并用igf优化的异体间充质干细胞的制备方法及在治疗心梗中应用 |
| WO2018055235A1 (en) | 2016-09-21 | 2018-03-29 | University Of Helsinki | Isoxazole-amides for treating cardiac diseases |
| FI128981B (en) | 2018-07-27 | 2021-04-30 | Voith Patent Gmbh | Method and apparatus for applying starch |
| CN110237237A (zh) * | 2019-06-10 | 2019-09-17 | 上海交通大学医学院附属上海儿童医学中心 | Bmp4蛋白作为制备治疗自身免疫性疾病药物的应用 |
| KR102224273B1 (ko) * | 2019-10-10 | 2021-03-08 | 고려대학교 산학협력단 | 줄기세포 유래 성숙 심근세포 및 이를 이용한 심혈관 질환 모델 |
| CN113667635A (zh) * | 2020-05-14 | 2021-11-19 | 梦芊科技知识产权有限公司 | 无异源培养基及使用其扩增间充质干细胞的方法 |
| CN113209312B (zh) * | 2021-05-06 | 2022-06-03 | 吉林大学 | 一种抑制转录因子mef2c表达的试剂在制备治疗瘢痕疙瘩的药物中的应用 |
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| US20020061837A1 (en) | 1996-09-05 | 2002-05-23 | Lough John W. | Bone morphogenetic protein and fibroblast growth factor compositions and methods for the induction of cardiogenesis |
| US5839438A (en) | 1996-09-10 | 1998-11-24 | Neuralmed, Inc. | Computer-based neural network system and method for medical diagnosis and interpretation |
| ATE307195T1 (de) * | 1997-07-14 | 2005-11-15 | Osiris Therapeutics Inc | Herzmuskelregenerierung unter verwendung mesenchymaler stammzellen |
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| AU6836301A (en) | 2000-06-20 | 2002-01-02 | Idec Pharma Corp | Treatment of b-cell associated diseases such as malignancies and autoimmune diseases using a cold anti-cd20 antibody/radiolabeled anti-cd22 antibody combination |
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| EP1727806A1 (en) | 2004-01-16 | 2006-12-06 | Novartis AG | 2,4-diaminopyrimidines and their use for inducing cardiomyogenesis |
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| SG175880A1 (en) * | 2009-05-20 | 2011-12-29 | Cardio3 Biosciences Sa | Parmaceutical composition for the treatment of heart diseases. |
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