JP2000512666A - 細胞培養および移植用の多糖スポンジ - Google Patents
細胞培養および移植用の多糖スポンジInfo
- Publication number
- JP2000512666A JP2000512666A JP09541956A JP54195697A JP2000512666A JP 2000512666 A JP2000512666 A JP 2000512666A JP 09541956 A JP09541956 A JP 09541956A JP 54195697 A JP54195697 A JP 54195697A JP 2000512666 A JP2000512666 A JP 2000512666A
- Authority
- JP
- Japan
- Prior art keywords
- sponge
- alginate
- polysaccharide
- cells
- solution
- 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.)
- Pending
Links
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Landscapes
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Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.(i) 平均細孔径が約10μm〜約300μmの範囲であり、(ii)細孔の壁厚であ る細孔間の平均距離が約5μm〜約270μmの範囲であり、そして(iii)多糖 スポンジの剛性の尺度であるE-弾性率が約50kPa〜約500kPaの範囲であるこ とを特徴とする多糖スポンジ。 2.前記スポンジがポリアニオン性多糖であるアルギン酸塩、ゲラン、ゲランガ ム、キサンタンキトサン、寒天、カラゲナンおよびポリカチオン性多糖である キトサンから選択される多糖から成る、請求項1に記載の多糖スポンジ。 3.前記スポンジは、(i)マンヌロン酸(M)残基含量が全残基の約25%〜約65% の範囲であり、(ii)グルロン酸(G)残基含量が全残基の約35%〜約75%の範囲 であり、(iii)M/G比が約1/3〜約1.86/lであり、そして(iv)該スポンジが得 られる1%w/vのアルギン酸塩を含む最終アルギン酸塩溶液の粘度が約50cP〜 約800cPの範囲であることを特徴とするアルギン酸塩類の群から選択されるア ルギン酸塩から成る、請求項1または2に記載の多糖スポンジ。 4.前記スポンジが、Laminaria hyperborea由来のアルギン酸塩ProtanalTM LF 120(LF 120)、Laminaria hyperborea由来のアルギン酸塩ProtanalTM LF 20/60(LF 20/60)、Laminaria hyperborea由来のアルギン酸塩MVGTM (MVG)、Laminaria hyperborea由来のアルギン酸塩PronatalTM HF 120(HF 120)、Laminaria hyperborea由来のアルギン酸塩PronatalTM SF 120(SF 120)、Laminaria hyperborea由来のアルギン酸塩PronatalTM SF 120 RB(SF 120 RB)、Laminaria hyperborea由来のアルギン酸塩PronatalTM LF 200 RB (LF 200 RB)、Laminaria hyperborea由来のアルギン酸塩ManugelTM DMB (DMB)、Macrocystis pyrifera由来のKeltoneTM HVCR(HVCR)、および Macrocystis pyrifera由来のKeltoneTM LV(LV)よりなる群から選択される褐 藻由来のアルギン酸塩から成る、請求項3に記載の多糖スポンジ。 5.前記スポンジが前記LF 120、LF 20/60およびHVCRよりなる群から選択される アルギン酸塩から成る、請求項4に記載の多糖スポンジ。 6.前記アルギン酸塩は、前記スポンジが得られる最終溶液中に約0.1%〜約2 %w/vのアルギン酸塩濃度を与えるように、約1%〜約3%w/vのアルギン酸 塩濃度を有するアルギン酸ナトリウム溶液の形で用いられる、請求項3〜5の いずれか1つに記載の多糖スポンジ。 7.前記スポンジがカルシウム、銅、アルミニウム、マグネシウム、ストロンチ ウム、バリウム、スズ、亜鉛、クロム、有機カチオン、ポリ(アミノ酸)、ポ リ(エチレンイミン)、ポリ(ビニルアミン)、ポリ(アリルアミン)、およ び多糖の塩類よりなる群から選択される架橋剤をさらに含む、請求項1〜5の いずれか1つに記載の多糖スポンジ。 8.前記スポンジが塩化カルシウム(CaCl2)、塩化ストロンチウム(SrCl2)およ びグルコン酸カルシウム(Ca-Gl)よりなる群から選択される架橋剤をさらに含 む、請求項7に記載の多糖スポンジ。 9.前記架橋剤は、前記スポンジが得られる最終溶液中に約0.1%〜約0.3% w/vの架橋剤濃度を与えるのに十分な濃度の架橋剤を含む架橋剤溶液の形で用 いられる、請求項7または8に記載の多糖スポンジ。 10.前記スポンジが架橋剤を添加したまたは添加してない多糖溶液から製造され たものである、請求項1〜9のいずれか1つに記載の多糖スポンジ。 11.前記スポンジが架橋剤を添加したまたは添加してないアルギン酸塩溶液から 製造されたアルギン酸塩スポンジであり、前記架橋剤を添加したまたは添加し てない最終アルギン酸塩溶液(この溶液から前記スポンジが得られる)が次の アルギン酸塩またはアルギン酸塩と架橋剤の濃度:(i)LF 120アルギン酸塩1 %W/V、架橋剤なし;(ii)LF 120アルギン酸塩1%w/vおよびCa-Gl 0.1% w/v;(iii)LF 120アルギン酸塩1%w/vおよびCa-Gl 0.2%w/v;(iv)LF 120アルギン酸塩1%w/vおよびSrCl2 0.15%w/v;(v)LF 120アルギン酸塩 1%w/vおよびCaCl2 0.1%w/v;(vi)LF 120アルギン酸塩0.5%w/vおよ びCa-Gl 0.2%w/v;(vii)LF 20/60アルギン酸塩1%w/vおよびCa-Gl 0.2 %w/v;(viii)HVCRアルギン酸塩0.5%w/vおよびCa-Gl 0.2%w/v;なら びに(ix)HVCRアルギン酸塩1%w/vおよびCa-Gl 0.2%w/vを有する最終溶 液の群から選択される、請求項10に記載の多糖スポンジ。 12.前記スポンジがLF 120アルギン酸塩1%w/vおよびCa-Gl架橋剤0.2%w/v の最終溶液から得られたものである、請求項11に記載の多糖スポンジ。 13.前記スポンジがHVCRアルギン酸塩1%w/vおよびCa-Gl架橋剤0.2%w/vの 最終溶液から得られたものである、請求項11に記載の多糖スポンジ。 14.哺乳動物細胞をin vitroで増殖させるためのマトリックス、基体または足場 として使用する、請求項1〜13のいずれか1つに記載の多糖スポンジ。 15.前記スポンジは切除されたまたは損傷を受けた組織を置換もしくは修復すべ く患者に埋め込むためのマトリックス、基体または足場として用いられ、その 際、前記埋め込まれたスポンジは周囲の組織が該スポンジに侵入し、その上で 増殖し、損傷を受けたまたは切除された組織を置換するための基体、マトリッ クスまたは足場となるか、または前記埋め込まれたスポンジは周囲の宿主組織 による血管新生のための初期基体となり、その後血管新生スポンジが宿主から 選択したまたはin vitroで増殖させた注入細胞を受け取るための基体として役 立ち、前記注入された細胞は血管新生スポンジ上で迅速に環境順化および増殖 して、損傷を受けたまたは切除された組織を速やかに置換することができる、 請求項1〜13のいずれか1つに記載の多糖スポンジ。 16.前記スポンジは目的の組織に治療薬を送達するための埋め込み支持体として 用いられ、前記治療薬の送達は前記スポンジにより担持された治療薬を発現す る遺伝子操作細胞または天然の細胞の働きによるものであり、前記細胞が治療 薬を発現するか、または前記組織において治療薬を内因的に産生させる調節タ ンパク質を発現する、請求項1〜13のいずれか1つに記載の多糖スポンジ。 17.前記スポンジ中に担持された前記細胞により発現される治療薬が治療タンパ ク質であり、ここで前記細胞は前記タンパク質を発現するか、または前記スポ ンジが埋め込まれる組織において前記タンパク質を内因的に産生させる調節タ ンパク質を発現する、請求項16に記載の多糖スポンジ。 18.植物細胞および藻類のin vitro培養のためのマトリックス、基体または足場 として用いられる、請求項1〜13のいずれか1つに記載の多糖スポンジ。 19.組織または臓器に、該組織または臓器用の治療薬をコードするまたは含有す る遺伝子操作ウイルスベクター、非ウイルスベクター、ポリマー微小球および リポソームを送達するためのマトリックス、基体または足場として用いられる 、 請求項1〜13のいずれか1つに記載の多糖スポンジ。 20.哺乳動物の卵母細胞の体外受精のためのマトリックス、基体または足場とし て用いられる、請求項1〜13のいずれか1つに記載の多糖スポンジ。 21.受精した哺乳動物卵母細胞またはin vitroで培養した他の哺乳動物細胞を保 存するためのマトリックス、基体または足場として用いられる、請求項1〜13 のいずれか1つに記載の多糖スポンジ。 22.前記スポンジの上または内部で増殖させた細胞を、組織の損傷、切除または 機能不全のために前記細胞を必要としている患者の組織に移植するためのマト リックス、基体または足場として用いられる、請求項1〜13のいずれか1つに 記載の多糖スポンジ。 23.請求項1〜22のいずれか1つに記載の多糖スポンジの製造方法であって、 (a)水中に約1%〜約3%w/vの多糖を含有する多糖溶液を調製し、 (b)約0.5%〜約2%w/vの多糖を含有する最終溶液を得たい場合は、前記 多糖溶液を追加の水で希釈し、そして(a)の前記溶液をゲル化させて多糖ゲル となし、 (c)(b)のゲルを凍結し、そして (d)(c)の凍結ゲルを乾燥して多糖スポンジを得る、 ことを含んでなる方法。 24.ゲル化工程(b)の間に(a)の前記多糖溶液に架橋剤を添加することをさらに 含み、前記架橋剤がゲル化される最終溶液中の架橋剤の濃度を約0.1%〜約 0.3%w/vとする量で添加される、請求項23に記載の方法。 25.粉末状の多糖を二回蒸留した水に、溶液中の多糖の濃度を約1%〜約3% w/vとする量で溶解することにより(a)の多糖溶液を調製し、前記多糖溶液を ホモジナイザー中約25000 rpm、室温で約30分混合する、請求項23または24に 記載の方法。 26.多糖溶液をホモジナイザー中約31800 rpmで約3分間激しく攪拌することに よりゲル化工程(b)を行い、その際、架橋剤を前記溶液に添加する場合は、多 糖溶液を激しく攪拌している間に架橋剤をゆっくりと添加する、請求項23〜25 のいずれか1つに記載の方法。 27.前記多糖が請求項4に記載のアルギン酸塩である、請求項23〜26のいずれか 1つに記載の方法。 28.前記方法において、工程(b)でゲル化される最終溶液が、(i)LF 120アルギ ン酸塩1%W/V、架橋剤なし;(ii)LF 120アルギン酸塩1%w/vおよびCa- Gl 0.1%w/v;(iii)LF 120アルギン酸塩1%w/vおよびCa-Gl 0.2% w/v;(iv)LF 120アルギン酸塩1%w/vおよびSrCl2 0.15%w/v;(v)LF 120アルギン酸塩1%w/vおよびCaCl2 0.1%w/v;(vi)LF 120アルギン酸 塩0.5%w/vおよびCa-Gl 0.2%w/v;(vii)LF 20/60アルギン酸塩1%w/v およびCa-Gl 0.2%w/v;(viii)HVCRアルギン酸塩0.5%w/vおよびCa-Gl 0.2%w/v;ならびに(ix)HVCRアルギン酸塩1%w/vおよびCa-Gl 0.2% w/vよりなる群から選択される、請求項27に記載の方法。 29.前記凍結工程(c)を、約-80℃の液体窒素浴中で約15分急速凍結することに より行う、請求項23〜28のいずれか1つに記載の方法。 30.前記凍結工程(c)を、約-18℃のフリーザー中で約8〜24時間ゆっくり凍結 することにより行う、請求項23〜28のいずれか1つに記載の方法。 31.前記乾燥工程(d)を、圧力約0.007mmHgおよび約-60℃の条件下で凍結乾燥 することにより行う、請求項23〜30のいずれか1つに記載の方法。 32.ゲル化工程(b)の激しい攪拌を開始する前に、架橋剤を添加したまたは添加 してない最終多糖溶液を所望の形状の容器に注入し、前記容器が多糖スポンジ の形状にとって望ましい形状をしている、請求項23〜31のいずれか1つに記載 の方法。 33.哺乳動物細胞、植物細胞、藻類のin vitro増殖のための、または哺乳動物卵 母細胞の体外受精のためのマトリックス、基体または足場としての請求項1〜 13のいずれか1つに記載の多糖スポンジの使用。 34.繊維芽細胞のin vitro増殖のための請求項33に記載の多糖スポンジの使用。 35.肝細胞のin vitro増殖のための請求項33に記載の多糖スポンジの使用。 36.請求項15〜17のいずれか1つに記載される患者への埋め込みのためのマトリ ックス、基体または足場としての請求項1〜13のいずれか1つに記載の多糖ス ポンジの使用。 37.多糖スポンジ上でin vitro増殖させた細胞を、組織の損傷、切除または機能 不全のために前記細胞を必要としている患者の組織に移植するためのマトリッ クス、基体または足場としての請求項1〜13のいずれか1つに記載の多糖スポ ンジの使用。 38.請求項1〜13のいずれか1つに記載の多糖スポンジ、および前記スポンジ上 でin vitro増殖させた皮膚繊維芽細胞を含んでなる人工皮膚であって、前記細 胞は人工皮膚を必要としている患者への移植に適した活動増殖期まで増殖させ たものである、人工皮膚。 39.請求項1〜13のいずれか1つに記載の多糖スポンジ、および前記スポンジ上 でin vitro増殖させた臓器の代表的細胞を含んでなる人工臓器等価物であって 、前記細胞は十分に活動的で、前記臓器の活動的な細胞と等しくなる時期まで 増殖させたものであり、前記人工臓器は臓器の損傷、切除または機能不全のた めにそれを必要としている患者に移植するかまたは埋め込むのに適している、 人工臓器等価物。 40.前記スポンジ上で増殖させた細胞が肝細胞である人工肝臓等価物であり、前 記肝細胞は活動的で、体内の肝細胞と同様に機能する時期にあり、肝臓の機能 不全、損傷または少なくとも部分的な切除を有する患者に移植するかまたは埋 め込むのに適している、請求項39に記載の人工臓器等価物。
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| IL118376 | 1996-05-22 | ||
| IL11837696A IL118376A0 (en) | 1996-05-22 | 1996-05-22 | Polysaccharide sponges for cell culture and transplantation |
| PCT/IL1997/000161 WO1997044070A1 (en) | 1996-05-22 | 1997-05-21 | Polysaccharide sponges for cell culture and transplantation |
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| JPWO2021186982A1 (ja) * | 2020-03-17 | 2021-09-23 | ||
| WO2021186982A1 (ja) * | 2020-03-17 | 2021-09-23 | 日本たばこ産業株式会社 | 多孔質体の製造方法および多孔質体 |
| JP7274041B2 (ja) | 2020-03-17 | 2023-05-15 | 日本たばこ産業株式会社 | 多孔質体の製造方法および多孔質体 |
Also Published As
| Publication number | Publication date |
|---|---|
| US6793675B2 (en) | 2004-09-21 |
| ATE249251T1 (de) | 2003-09-15 |
| DE69724780T2 (de) | 2004-07-15 |
| AU714647B2 (en) | 2000-01-06 |
| DK0901384T3 (da) | 2004-01-19 |
| US20030078672A1 (en) | 2003-04-24 |
| US6334968B1 (en) | 2002-01-01 |
| US6425918B1 (en) | 2002-07-30 |
| CA2256327C (en) | 2012-07-24 |
| ES2206707T3 (es) | 2004-05-16 |
| EP0901384B1 (en) | 2003-09-10 |
| PT901384E (pt) | 2004-02-27 |
| IL118376A0 (en) | 1996-09-12 |
| EP0901384A1 (en) | 1999-03-17 |
| CA2256327A1 (en) | 1997-11-27 |
| DE69724780D1 (de) | 2003-10-16 |
| AU2711797A (en) | 1997-12-09 |
| WO1997044070A1 (en) | 1997-11-27 |
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