JP5148272B2 - 血管新生を調節するための低分子量の高度に硫酸化された多糖誘導体の使用 - Google Patents
血管新生を調節するための低分子量の高度に硫酸化された多糖誘導体の使用 Download PDFInfo
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- JP5148272B2 JP5148272B2 JP2007515983A JP2007515983A JP5148272B2 JP 5148272 B2 JP5148272 B2 JP 5148272B2 JP 2007515983 A JP2007515983 A JP 2007515983A JP 2007515983 A JP2007515983 A JP 2007515983A JP 5148272 B2 JP5148272 B2 JP 5148272B2
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Description
- 以下を含む、化学的な硫酸化からなる第1の工程:
a) 無水溶媒における、海洋細菌Alteromonas infernusによって産生された凍結乾燥したGY 785多糖の溶解からなる第1のサブ工程、および
b) 硫酸化されたGY 785多糖の総重量に対して45重量%以下の硫酸基置換度を有する硫酸化多糖を製造するのに十分な量の少なくとも1つの化学的硫酸化剤の、45から60℃の温度での添加からなる第2のサブ工程;
- 25000g/mol以下の分子量および2未満の多分散度を有する硫酸化多糖を製造するための、第1の工程で得られた硫酸化多糖のフリーラジカル解重合からなる第2の工程、
を含む製造方法によって得られる使用。
- 好ましくは反応物体積の1/10の割合で水を添加し、塩基性化剤(例えば水酸化ナトリウム(3M)等)を用いて反応媒体のpHを9への調整すること、または
- 好ましくは、塩化ナトリウム飽和アセトンもしくはメタノールの存在下で沈殿し、その後に、水で沈殿物を溶解すること。
(i)前記した方法で実施される、海洋細菌である熱水起源のAlteromona infernusによって産生されたEPS GY 785に由来する硫酸化多糖誘導体(EPS SDR)の製造の実施例、
(ii)FGF-2-誘導性内皮細胞増殖に対する、EPS SDR誘導体の効果に関する実施例、
(iii)VEGF-誘導性内皮細胞増殖に対する、EPS SDR誘導体の効果に関する実施例、
(iv)FGF-2-誘導性またはVEGF-誘導性内皮細胞移動に対する、EPS SDRの効果を実証する実施例、および
(v)FGF-2-誘導性またはVEGF-誘導性内皮細胞分化に対する、EPS SDRの効果を試験する実施例。
<1)EPS GY 785の化学的硫酸化>
特許出願FR 2 755 142の実施例1に記載した方法に従って、海洋細菌である熱水起源のAlteromonas infernusによって産生される500mgのEPS GY 785の凍結乾燥物を、100mlの無水DMFに、穏やかに攪拌しながら(250rpm)、2時間周囲温度で、その後、2時間45℃で溶解させた。
前記した工程で得られた400mgの硫酸化EPS GY 785を、95mlの水に溶解した。溶解後、36mgの酢酸銅一水和物(10-3M)を含む2mlの触媒溶液を添加した。その後、リアクターの温度を60℃に上げ、1M水酸化ナトリウムの添加によりpHを7.5に調整した。その後、0.115%(v/v)過酸化水素溶液を、1分間当たり1mlの流速で添加し、1M水酸化ナトリウムの添加によりpHを7.5付近で調節した。反応は、1時間後に停止させた。
前記で得られた、硫酸化して解重合したEPS GY 785誘導体の分子量(Mc:ピークの頂点から求めたクロマトグラフィー分子量;MwおよびMn)ならびに多分散度(I=Mw/Mn)を、Kontron systemを用いた高速サイズ排除クロマトグラフィー(HPSEC)(0.1M水性酢酸アンモニウム、流速0.5ml/分、Superdex(登録商標)200カラム(Pharmacia)を使用)によって、求めた。カラムは、以下の多糖スタンダードを用いてキャリブレーションを行なった:プルラン:853000-5800g/mol(Polymer Laboratories, Interchim)、デキストラン:1500g/mol、メレジトース:522g/mol(Fluka)、スクロース:342g/mol、グルコース:180g/mol(Sigma)。Aramis(登録商標)ソフトウェア(JMBS Developpement, Le Fontanil, France)を使用して、結果を分析した。
得られた結果を、以下の表Iにまとめて示す。
実施例1で製造した、本発明による低分子量の高度に硫酸化されたEPS GY 785誘導体(EPS SDR)の、ヒト臍帯静脈由来の内皮細胞(HUVEC)の増殖に対する効果を、解重合した天然型誘導体(EPS DR)、すなわちフリーラジカル解重合によって得られた誘導体の効果と比較した。
これらの誘導体は、特許出願FR 2 755 142の実施例1に記載した方法に従って、海洋細菌Alteromonas infernusによって産生される500mgのEPS GY 785の凍結乾燥物から製造した。
HUVEC細胞を、0.5%のゼラチンでコーティングしたウェルで培養を開始した。24時間の培養後、培養培地を、以下の培地に交換した:コントロール培地単独(Gibsco-BRL社、Cergy-Pontoise, Franceによって販売されているM199培養培地(1当量)+RPMI 1640培養媒地(1当量)、ATGC社、Noisy-le-Grand, Franceによって販売されている5%のウシ胎児血清を捕捉)、または、5ng/mlのFGF-2(AbCys SA社、Paris, Franceによって販売)、もしくはEPS誘導体単独(10μg/ml)、もしくはFGF-2(5ng/ml)+EPS誘導体(1もしくは10μg/ml)を添加したコントロール培地単独。培地は、2週間ごとに新鮮なものとした。処置3日後に、細胞を引き剥がし、Malassez cellを使用してカウントした。
結果を、以下の表IIIに示す。
実施例1で合成したEPS GY 785誘導体の、VEGF-誘導性の内皮細胞増殖(AbCys SA社、Paris,Franceによって販売されているVEGF)に対する効果についても、実施例2で使用したのと同じプロトコールに従って、研究した。
<1)プロトコール>
本実施例においては、実施例1で製造したEPS SDR誘導体を使用した。
増殖因子単独(FGF-2またはVEGF)の存在下、すなわちEPS SDR誘導体が存在しない場合は、細胞の移動は、コントロール(増殖因子もEPS誘導体も含まない培養培地に由来する細胞の移動)と比較して、40%顕著に増加する(p<0.0001)。10μg/mlのESP SDR誘導体のFGF-2への添加により、FGF-2単独での誘導と比較して、細胞の移動を20%顕著に減少させる(p<0.05)。同じ濃度で同じ誘導体のVEGFへの添加では、VEGF単独で存在する場合に比較して、細胞の移動は変化しない。
本実施例においては、実施例1で製造したEPS SDR、および、実施例2で製造したEPS DRを使用した。
<a)Matrigel(登録商標)を用いたin vitro血管新生>
in vitro血管新生モデルを使用することにより、フカン(褐藻の硫酸化多糖)は、未分画のヘパリンと異なり、ヒトの大血管内皮細胞に対するFGF-2の血管新生効果を可能にすることが示されている(Matou et al., 2002, 前記)。
以前に、HUVEC分化に対する硫酸化多糖(フカンファミリー)の効果が、α6インテグリンサブユニットの過剰発現によって達成されることが示された(Matou et al., 2002, 前記)。α6インテグリンサブユニットの過剰発現は、FGF-2の不在下または存在下で、EPS SDR誘導体の存在下または不在下で、ゼラチン上で培養し、前記したように引き剥がしたHUVEC内皮細胞の表面で定量した。定量は、フローサイトメトリーで実施した。細胞を、30分間4℃で、抗-α6抗体(BD Biosciences & Pharminge社、San Diego, CA, USAにより、参照番号555736で販売されている)を用いてインキュベートした。その後、細胞を、FACSCalibur(登録商標)フローサイトメトリー(BD Biosciences)による免疫蛍光によって分析した。
得られた結果を、以下の表Vに示す。
<1)プロトコール>
<a)Matrigel(登録商標)を用いたin vitro血管新生>
非常に重要なもう1つの血管新生因子であるVEGFは、FGF-2よりも内皮細胞に対して特異的であることが知られている。Matrigel(登録商標)上での内皮細胞分化に対するFGF-2の効果を評価するために、研究システムをセットしたところ、実施例5で示すように、VEGFの存在下では血管新生を観察することは可能ではなかった。
実施例5に記載したように、フローサイトメトリーを使用して、α6インテグリンサブユニットの定量を実施した。
Matrigel(登録商標)上で、EPS SDR誘導体の存在下または非存在下で、VEGFで処理しなかった細胞は、環状構造を形成しない。VEGF単独の存在下では、細胞は、部分的な3次元血管ネットワークを形成する。EPS SDR誘導体のVEGFへの添加により、このネットワークの密度を増加する。
Claims (23)
- 25000g/mol以下の分子量、2未満の多分散度および45%以下の硫酸基置換度を有する硫酸化多糖誘導体の、心臓血管治療用の血管新生促進活性を有する医薬組成物の製造のための使用であり、前記誘導体が、少なくとも以下の工程:
- 以下を含む、化学的な硫酸化からなる第1の工程:
a) 無水溶媒における、海洋細菌Alteromonas infernusによって産生された凍結乾燥したGY 785多糖の溶解からなる第1のサブ工程、および
b) 硫酸化GY 785多糖の総重量に対して45重量%以下の硫酸基置換度を有する硫酸化多糖を製造するのに十分な量の少なくとも1つの化学的硫酸化剤の、45から60℃の温度での添加からなる第2のサブ工程;
- 25000g/mol以下の分子量および2未満の多分散度を有する硫酸化多糖を製造するための、第1の工程で得られた硫酸化多糖のフリーラジカル解重合からなる第2の工程、
を含む製造方法によって得られる使用。 - 前記第1の工程において、凍結乾燥したEPS GY 785を、天然の形態または塩基との付加塩の形態で使用することを特徴とする、請求項1に記載の使用。
- 前記凍結乾燥したEPS GY 785を、ピリジン、トリエチルアミン、トリブチルアミン、水酸化テトラブチルアンモニウムおよび水酸化ナトリウムから選択される強塩基または弱塩基との付加塩の形態で使用することを特徴とする、請求項2に記載の使用。
- 前記無水溶媒が、ジメチルホルムアミド、ジメチルスルホキシドおよびホルムアミドから選択されることを特徴とする、請求項1から3のいずれか一項に記載の使用。
- 前記無水溶媒に存在するEPS GY 785の量が、1から10mg/mlであることを特徴とする、請求項1から4のいずれか一項に記載の使用。
- 前記無水溶媒に存在するEPS GY 785の量が、1から5mg/mlであることを特徴とする、請求項5に記載の使用。
- 前記サブ工程a)において、無水溶媒におけるEPS GY 785の溶解を、攪拌しながら、周囲温度で1から2時間、その後は、40から50℃の温度で2時間、アルゴン雰囲気下、モレキュラーシーブスの存在下で実施することを特徴とする、請求項1から6のいずれか一項に記載の使用。
- 前記サブ工程b)において使用する化学的硫酸化剤が、ピリジン硫酸錯体、トリエチルアミン硫酸錯体およびトリメチルアミン硫酸錯体から選択されることを特徴とする、請求項1から7のいずれか一項に記載の使用。
- 前記サブ工程b)において、化学的硫酸化剤が、溶液中のEPS GY 785の質量の4から6倍の重量で、EPS GY 785の溶液へ添加されることを特徴とする、請求項1から8のいずれか一項に記載の使用。
- 前記化学的硫酸化反応を、攪拌しながら、2から24時間実施することを特徴とする、請求項1から9のいずれか一項に記載の使用。
- - 反応物体積の1/10の割合で水を添加し、塩基性化剤を用いて反応媒体のpHを9へ調整すること、または
- 塩化ナトリウム飽和アセトンもしくはメタノールの存在下で沈殿させ、その後に、水で沈殿物を溶解すること、
のいずれかによって、反応媒体の冷却後に、化学的硫酸化反応を停止することを特徴とする、請求項1から10のいずれか一項に記載の使用。 - フリーラジカル解重合からなる第2の工程を、金属触媒の存在下における、硫酸化EPS GY 785を含む反応混合物への、酸化剤溶液の添加によって実施し;前記添加を、連続的に、攪拌しながら、30分から10時間かけて実施することを特徴とする、請求項1から11のいずれか一項に記載の使用。
- 前記反応混合物を、フリーラジカル解重合反応の間、30から70℃の温度で、塩基性化剤の連続的な添加によって6から8のpHで維持することを特徴とする、請求項12に記載の使用。
- 前記酸化剤が、過酸化物および過酸から選択されることを特徴とする、請求項12または13に記載の使用。
- 前記酸化剤が、1000分のV1から10分のV1 ml/分(V1は、過酸化水素溶液を添加する、EPS GY 785の硫酸化誘導体を含む反応媒体の体積である)の流速で加える過酸化水素溶液であることを特徴とする、請求項14に記載の使用。
- 前記第2の工程で使用する酸化剤溶液が、0.1重量%から0.5重量%の濃度を有し、500分のV1から50分のV1 ml/分(V1は、過酸化水素溶液を添加する、EPS GY 785の硫酸化誘導体を含む反応媒体の体積である)の流速で反応混合物に添加する過酸化水素溶液であることを特徴とする、請求項14に記載の使用。
- 前記解重合からなる第2の工程において、硫酸化EPS GY 785が、反応混合物の2から10mg/mlの濃度で、反応混合物に存在することを特徴とする、請求項1から16のいずれか一項に記載の使用。
- 前記解重合工程で使用することができる金属触媒が、Cu++、Fe++およびCr+++イオンならびにCr2O7 2-アニオンから選択されることを特徴とする、請求項12から17のいずれか一項に記載の使用。
- 前記金属触媒が、反応混合物中に、10-3Mから10-1Mの濃度で存在することを特徴とする、請求項12から18のいずれか一項に記載の使用。
- 前記製造方法が、還元剤を使用した、得られた多糖誘導体の還元からなる付加的な工程を含むことを特徴とする、請求項1から19のいずれか一項に記載の使用。
- 前記医薬組成物を、1つまたは複数の増殖因子と組み合わせて使用することを特徴とする、請求項1から20のいずれか一項に記載の使用。
- 前記医薬組成物が、虚血の予防および/または治療用であることを特徴とする、請求項1から21のいずれか一項に記載の使用。
- 前記医薬組成物が、血管再生および血管リモデリングを促進するために使用されることを意図することを特徴とする、請求項1から21のいずれか一項に記載の使用。
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FR2894147B1 (fr) * | 2005-12-07 | 2008-02-15 | Ifremer | Utilisation d'un polysaccharide excrete par l'espece vibrio diabolicus a des fins de regeneration et de protection du parodonte |
JP2007204396A (ja) * | 2006-01-31 | 2007-08-16 | Pias Arise Kk | マトリックスメタロプロテアーゼ−9及びエンドセリン−1の産生抑制剤、並びにその産生抑制剤を配合した炎症後色素沈着の予防・改善剤、化粧料 |
KR101537834B1 (ko) * | 2008-04-15 | 2015-07-20 | 루카스 마이어 코스메틱스 캐나다 인크. | 미생물 매트로부터 유래된 엑소폴리사카라이드를 포함하는 화장료 조성물 |
WO2010086696A1 (en) * | 2009-01-28 | 2010-08-05 | Therapol | Low-molecular-weight sulphated polysaccharides as candidates for anti-angiogenic therapy |
FR2953217B1 (fr) | 2009-11-27 | 2012-10-05 | Ifremer | Procede de depolymerisation de polysaccharides par broyage mecanique |
CN101856658B (zh) * | 2010-06-01 | 2011-09-07 | 云南大红山管道有限公司 | 一种长距离铁精矿管道软堵塞的疏通方法 |
FR2964014B1 (fr) * | 2010-08-31 | 2013-04-05 | Ifremer | Nucleus enrobe d'un revetement filmogene aux proprietes antibacteriennes et cicatrisantes et procede d'obtention. |
ES2390033B1 (es) | 2010-11-30 | 2013-10-31 | Lipotec S.A. | Exopolisacárido para el tratamiento y/o cuidado de la piel, mucosas, cabello y/o uñas. |
JP6100451B2 (ja) * | 2011-01-18 | 2017-03-22 | ヒノキ新薬株式会社 | 皮膚外用剤 |
WO2012126824A1 (en) | 2011-03-18 | 2012-09-27 | Inserm (Institut National De La Sante Et De La Recherche Medicale) | Chondrogenic differentiation media and methods for inducing chondrogenic differentiation of cells |
ES2424294B1 (es) * | 2012-03-22 | 2014-07-21 | Lipotec, S.A. | Exopolisacárido para el tratamiento y/o cuidado de la piel, mucosas, cabello y/o uñas |
EP3146971A1 (en) * | 2015-09-28 | 2017-03-29 | Institut Francais de Recherche pour l'Exploitation de la Mer (IFREMER) | An anti-metastatic marine bacterial exopolysaccharide derivative and uses thereof |
WO2017118979A1 (en) * | 2016-01-07 | 2017-07-13 | B. G. Negev Technologies And Applications Ltd., At Ben-Gurion University | Compositions and methods for generating immunotolerant responses |
JP2019530663A (ja) | 2016-09-01 | 2019-10-24 | インスティトゥート デ ビオロジア モレクラル エ セルラル−イーベーエミセーInstituto De Biologia Molecular E Celular − Ibmc | シアノバクテリア細胞外ポリマー、組成物およびそれらの使用 |
AU2021301259A1 (en) * | 2020-07-02 | 2023-02-02 | Fondation Sanfilippo Suisse | Marine bacterial exopolysaccharide derivatives and uses thereof in the treatment of mucopolysaccharidoses |
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IT1214609B (it) | 1985-05-17 | 1990-01-18 | Opocrin Spa | Esosaminoglicani solfati depolimerizzati ad attivita'antitrombotica, fibrinolitica, antinfiammatoria, loro procedimento di preparazione e composizioni farmaceutiche che li contengono. |
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FR2760022B1 (fr) | 1997-02-25 | 1999-04-30 | Ifremer | Souche bacterienne marine du genre vibrio, polysaccharides hydrosolubles produits par cette souche, et leurs utilisations |
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IT1302534B1 (it) * | 1998-12-21 | 2000-09-05 | Fidia Advanced Biopolymers Srl | Composizioni iniettabili, biocompatibili e biodegradabili comprendentialmeno un derivato dell'acido ialuronico, cellule condrogeniche, per |
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US7736636B2 (en) * | 2003-02-12 | 2010-06-15 | Shaker Mousa | Method for treating occlusive vascular diseases & wound healing |
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