MA35067B1 - Procédé pour éliminer une hémoglobine non modifiée de solutions d'hémoglobine réticulée contenant une hémoglobine polymère avec un appareil de traitement thermique de courte durée à haute tempé - Google Patents
Procédé pour éliminer une hémoglobine non modifiée de solutions d'hémoglobine réticulée contenant une hémoglobine polymère avec un appareil de traitement thermique de courte durée à haute tempéInfo
- Publication number
- MA35067B1 MA35067B1 MA36374A MA36374A MA35067B1 MA 35067 B1 MA35067 B1 MA 35067B1 MA 36374 A MA36374 A MA 36374A MA 36374 A MA36374 A MA 36374A MA 35067 B1 MA35067 B1 MA 35067B1
- Authority
- MA
- Morocco
- Prior art keywords
- hemoglobin
- short
- high temperature
- treatment apparatus
- solutions containing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/30—Extraction; Separation; Purification by precipitation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/795—Porphyrin- or corrin-ring-containing peptides
- C07K14/805—Haemoglobins; Myoglobins
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/34—Extraction; Separation; Purification by filtration, ultrafiltration or reverse osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Peptides Or Proteins (AREA)
- Medicinal Preparation (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
La présente invention concerne un procédé de traitement thermique de solutions d'hémoglobine réticulée contenant une hémoglobine polymère. Le procédé comprend le contact de la solution d'hémoglobine avec un appareil de traitement thermique de courte durée à haute température. Le procédé de traitement de courte durée à haute température permet de dénaturer par voie thermique l'hémoglobine tétramère non modifiée (hémoglobine sous forme de dimère), les impuretés protéiques (par exemple, l'immunoglobine G, la sérumalbumine), les bactéries et les virus, ce qui permet d'éviter les lésions rénales, les effets néfastes pour les vaisseaux et d'autres réactions de toxicité.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201113097183A | 2011-04-29 | 2011-04-29 | |
US13/217,337 US8084581B1 (en) | 2011-04-29 | 2011-08-25 | Method for removing unmodified hemoglobin from cross-linked hemoglobin solutions including polymeric hemoglobin with a high temperature short time heat treatment apparatus |
PCT/US2012/034608 WO2012148832A2 (fr) | 2011-04-29 | 2012-04-23 | Procédé pour éliminer une hémoglobine non modifiée de solutions d'hémoglobine réticulée contenant une hémoglobine polymère avec un appareil de traitement thermique de courte durée à haute température |
Publications (1)
Publication Number | Publication Date |
---|---|
MA35067B1 true MA35067B1 (fr) | 2014-04-03 |
Family
ID=45349825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MA36374A MA35067B1 (fr) | 2011-04-29 | 2012-04-23 | Procédé pour éliminer une hémoglobine non modifiée de solutions d'hémoglobine réticulée contenant une hémoglobine polymère avec un appareil de traitement thermique de courte durée à haute tempé |
Country Status (18)
Country | Link |
---|---|
US (1) | US8084581B1 (fr) |
EP (1) | EP2702067B1 (fr) |
KR (1) | KR20140031915A (fr) |
AP (1) | AP2013007232A0 (fr) |
AU (1) | AU2012249996A1 (fr) |
BR (1) | BR112013027756A2 (fr) |
CA (1) | CA2834508A1 (fr) |
CL (1) | CL2013003111A1 (fr) |
DK (1) | DK2702067T3 (fr) |
EA (1) | EA020891B1 (fr) |
ES (1) | ES2668674T3 (fr) |
IL (1) | IL229107B (fr) |
MA (1) | MA35067B1 (fr) |
MX (1) | MX353814B (fr) |
MY (1) | MY162401A (fr) |
SG (1) | SG194677A1 (fr) |
WO (1) | WO2012148832A2 (fr) |
ZA (1) | ZA201308059B (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2612752T3 (es) | 2003-12-18 | 2017-05-18 | Metronom Health, Inc. | Biosensor implantable y métodos de uso del mismo |
US8730976B2 (en) | 2004-08-17 | 2014-05-20 | Cisco Technology, Inc. | System and method for preventing erroneous link aggregation due to component relocation |
CN103781489B (zh) | 2011-09-06 | 2017-03-29 | 黄炳镠 | 用于基于血红蛋白的氧载体的口服递送 |
US9636404B2 (en) * | 2013-05-13 | 2017-05-02 | Vision Global Holdings Ltd. | Pharmaceutical composition comprising modified hemoglobin-based therapeutic agent for cancer targeting treatment and diagnostic imaging |
US9814759B2 (en) | 2014-07-02 | 2017-11-14 | Cheer Global Ltd. | Pharmaceutical composition comprising recombinant hemoglobin protein or subunit-based therapeutic agent for cancer targeting treatment |
US9763889B2 (en) | 2015-06-29 | 2017-09-19 | Billion King International Ltd. | Oral delivery system for hemoglobin based oxygen carriers |
JP2018535189A (ja) | 2015-09-02 | 2018-11-29 | メトロノーム・ヘルス、インコーポレイテッド | 光−酵素検体センサを使用する連続ヘルス・モニタリングのためのシステム及び方法 |
US10052290B2 (en) | 2016-02-04 | 2018-08-21 | Billion King International Ltd. | Enteric-coated hemoglobin multiparticulate for oral delivery of hemoglobin based oxygen carriers |
CA3070172A1 (fr) | 2017-07-18 | 2019-01-24 | VirTech Bio, Inc. | Substituts sanguins comprenant de l'hemoglobine et procedes de fabrication |
Family Cites Families (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3925344A (en) * | 1973-04-11 | 1975-12-09 | Community Blood Council | Plasma protein substitute |
US4001401A (en) * | 1975-02-02 | 1977-01-04 | Alza Corporation | Blood substitute and blood plasma expander comprising polyhemoglobin |
US4529719A (en) | 1983-05-04 | 1985-07-16 | Tye Ross W | Modified crosslinked stroma-free tetrameric hemoglobin |
FR2548671B1 (fr) | 1983-07-07 | 1986-05-02 | Merieux Inst | Procede de preparation de globine a partir d'hemoglobine et globine obtenue par ce procede |
US5281579A (en) * | 1984-03-23 | 1994-01-25 | Baxter International Inc. | Purified virus-free hemoglobin solutions and method for making same |
US4831012A (en) | 1984-03-23 | 1989-05-16 | Baxter International Inc. | Purified hemoglobin solutions and method for making same |
USRE34271E (en) | 1984-06-27 | 1993-06-01 | University Of Iowa Research Foundation | Production of alpha-alpha cross-linked hemoglobins in high yield |
US4598064A (en) | 1984-06-27 | 1986-07-01 | University Of Iowa Research Foundation | Alpha-alpha cross-linked hemoglobins |
US4600531A (en) | 1984-06-27 | 1986-07-15 | University Of Iowa Research Foundation | Production of alpha-alpha cross-linked hemoglobins in high yield |
US5464814A (en) | 1986-06-20 | 1995-11-07 | Northfield Laboratories, Inc. | Acellular red blood cell substitute |
JPH0750329B2 (ja) | 1986-06-23 | 1995-05-31 | 富士写真フイルム株式会社 | 画像形成材料 |
US5084558A (en) | 1987-10-13 | 1992-01-28 | Biopure Corporation | Extra pure semi-synthetic blood substitute |
US5753616A (en) | 1986-11-10 | 1998-05-19 | Biopure Corporation | Method for producing a stable polymerized hemoglobin blood-substitute |
US5955581A (en) | 1986-11-10 | 1999-09-21 | Biopure Corporation | Method for producing a stable polymerized hemoglobin blood-substitute |
CA1312009C (fr) | 1986-11-10 | 1992-12-29 | Carl W. Rausch | Substitut sanguin semi-synthetique extra pur |
US5189146A (en) | 1987-05-05 | 1993-02-23 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Pasteurizable, freeze-driable hemoglobin-based blood substitute |
WO1989012456A1 (fr) | 1988-06-15 | 1989-12-28 | Baxter International Inc. | Procede de purification d'hemoglobine reticulee |
US5439882A (en) | 1989-12-29 | 1995-08-08 | Texas Tech University Health Sciences Center | Blood substitute |
WO1992003153A1 (fr) * | 1990-08-17 | 1992-03-05 | Baxter International Inc. | Composition a base d'hemoglobine-oligomere et procede de preparation |
US5250665A (en) | 1991-05-31 | 1993-10-05 | The University Of Toronto Innovations Foundation | Specifically β-β cross-linked hemoglobins and method of preparation |
US5344393A (en) | 1992-02-28 | 1994-09-06 | Alliance Pharmaceutical Corp. | Use of synthetic oxygen carriers to facilitate oxygen delivery |
US6187744B1 (en) | 1992-03-11 | 2001-02-13 | Michael W. Rooney | Methods and compositions for regulating the intravascular flow and oxygenating activity of hemoglobin in a human or animal subject |
US5840851A (en) | 1993-07-23 | 1998-11-24 | Plomer; J. Jeffrey | Purification of hemoglobin |
US5725839A (en) | 1993-08-16 | 1998-03-10 | Hsia; Jen-Chang | Compositions and methods utilizing nitroxides in combination with biocompatible macromolecules for ERI or MRI |
US5741893A (en) | 1993-08-16 | 1998-04-21 | Hsia; Jen-Chang | Compositions and methods utilizing nitroxides in combination with biocompatible macromolecules |
US5807831A (en) | 1993-08-16 | 1998-09-15 | Hsia; Jen-Chang | Compositions and methods utilizing nitroxides in combination with biocompatible macromolecules |
US5767089A (en) | 1993-08-16 | 1998-06-16 | Hsia; Jen-Chang | Compositions and methods utilizing nitroxides in combination with biocompatible macromolecules |
US5804561A (en) | 1993-08-16 | 1998-09-08 | Hsia; Jen-Chang | Compositions and methods utilizing nitroxides in combination with biocompatible macromolecules |
US5824781A (en) | 1993-08-16 | 1998-10-20 | Hsia; Jen-Chang | Compositions and methods utilizing nitroxides in combination with biocompatible macromolecules |
US5840701A (en) | 1993-08-16 | 1998-11-24 | Hsia; Jen-Chang | Compositions and methods utilizing nitroxides in combination with biocompatible macromolecules |
TW381022B (en) | 1993-08-16 | 2000-02-01 | Hsia Jen Chang | Compositions and methods utilizing nitroxides to avoid oxygen toxicity, particularly in stabilized, polymerized, conjugated, or encapsulated hemoglobin used as a red cell substitute |
US5817632A (en) | 1993-08-16 | 1998-10-06 | Hsia; Jen-Chang | Compositions and methods utilizing nitroxides in combination with biocompatible macromolecules |
US5631219A (en) | 1994-03-08 | 1997-05-20 | Somatogen, Inc. | Method of stimulating hematopoiesis with hemoglobin |
US6242417B1 (en) | 1994-03-08 | 2001-06-05 | Somatogen, Inc. | Stabilized compositions containing hemoglobin |
WO1995031727A1 (fr) | 1994-05-13 | 1995-11-23 | Therasorb Medizinische Systeme Gmbh | Colonne sterile et apyrogene couplee a une proteine en vue de la fixation et de l'extraction de substances donnees du sang |
SE9500724D0 (sv) | 1994-06-23 | 1995-02-24 | Pharmacia Ab | Filtrering |
US6288027B1 (en) | 1995-03-23 | 2001-09-11 | Biopure Corporation | Preserving a hemoglobin blood substitute with a transparent overwrap |
US6610832B1 (en) | 1995-03-23 | 2003-08-26 | Biopure Corporation | Preserving a hemoglobin blood substitute with a transparent overwrap |
US5895810A (en) | 1995-03-23 | 1999-04-20 | Biopure Corporation | Stable polymerized hemoglobin and use thereof |
US5952470A (en) * | 1995-06-07 | 1999-09-14 | Biopure Corporation | Method for separating unmodified hemoglobin from cross-linked hemoglobin |
US5865784A (en) | 1995-06-07 | 1999-02-02 | Alliance Pharmaceutical Corp. | Method of hemodilution facilitated by monitoring oxygenation status |
US5691453A (en) | 1995-06-07 | 1997-11-25 | Biopure Corporation | Separation of polymerized hemoglobin from unpolymerized hemoglobin on hydroxyapatite using HPLC |
US5741894A (en) | 1995-09-22 | 1998-04-21 | Baxter International, Inc. | Preparation of pharmaceutical grade hemoglobins by heat treatment in partially oxygenated form |
JP2000502058A (ja) | 1995-11-30 | 2000-02-22 | ソマトジェン,インコーポレイテッド | ヘモグロビン架橋の際の機能性制御のための方法 |
ES2205074T3 (es) | 1996-03-21 | 2004-05-01 | KOBUSCH-SENGEWALD GMBH & CO.KG | Pelicula multicapa y procedimiento para su produccion, y su utilizacion. |
DE69733664T3 (de) | 1996-04-19 | 2011-04-14 | Grifols Inc. (n.d. Ges.d.Staates Delaware), Los Angeles | Verfahren zur INaktivierung von Viren und Lyophilisierung von Blutproteinen |
DE69831248T2 (de) | 1997-02-28 | 2006-04-13 | The Regents Of The University Of California, Oakland | Verfahren und zusammensetzungen zur optimierung des sauerstofftransportes in zellfreien systemen |
US5814601A (en) | 1997-02-28 | 1998-09-29 | The Regents Of The University Of California | Methods and compositions for optimization of oxygen transport by cell-free systems |
JP4643004B2 (ja) | 1998-01-06 | 2011-03-02 | シーラス コーポレイション | 生体材料中の病原体不活性化剤をクエンチするための方法 |
US6894150B1 (en) | 1999-10-01 | 2005-05-17 | Ross Walden Tye | Non-pyrogenic, endotoxin-free, stroma-free tetrameric hemoglobin |
US6747132B2 (en) | 2000-11-29 | 2004-06-08 | Apex Biosciences, Inc. | Methods for the synthesis of a modified hemoglobin solution |
US6518010B2 (en) | 2001-02-28 | 2003-02-11 | Biopure Corporation | Use of defibrinated blood for manufacture of a hemoglobin-based oxygen carrier |
MXPA03009555A (es) | 2001-04-18 | 2004-12-06 | Northfield Lab | Sistema de recipiente flexible para almacenamiento de soluciones de hemoglobina estabilizadas. |
JP4260417B2 (ja) | 2001-05-23 | 2009-04-30 | ノバルティス アクチエンゲゼルシャフト | 溶液を輸送し脱酸素するためのシステム及び方法 |
US7038016B2 (en) | 2001-08-21 | 2006-05-02 | Apex Bioscience, Inc. | Methods for purification of an activated PEG solution and for the synthesis of a modified hemoglobin solution |
US20030153491A1 (en) | 2002-01-11 | 2003-08-14 | Winslow Robert M. | Methods and compositions for oxygen transport comprising a high oxygen affinity modified hemoglobin |
US20050164915A1 (en) | 2002-04-01 | 2005-07-28 | Sangart, Inc. | Compositions for oxygen transport comprising a high oxygen affinity modified hemoglobin |
CN1741812B (zh) | 2002-12-23 | 2013-04-24 | 犹太大学阿尔伯特爱因斯坦医学院 | 修饰的血红蛋白及其制备方法 |
CN100431602C (zh) | 2003-01-29 | 2008-11-12 | 北原实验室有限公司 | 具有低量四聚体的聚合血红蛋白溶液及制备方法 |
US7135554B1 (en) * | 2004-01-27 | 2006-11-14 | Biopure Corporation | Method of forming a polymerized hemoglobin solution from stabilized hemoglobin |
BRPI0518198B8 (pt) | 2004-10-29 | 2021-06-22 | Cerus Corp | método ex vivo para tratar uma composição de células hemácias para inativar um patógeno, se presente, bem como composição e kit |
WO2007065265A1 (fr) | 2005-12-08 | 2007-06-14 | Ronald Kluger | Réactifs de réticulation pour hémoglobine et produits à base d'hémoglobine réticulés à l'aide desdits réactifs |
US7759306B2 (en) | 2006-05-16 | 2010-07-20 | Simoni Jan S | Methods of treating acute blood loss |
US7795401B2 (en) | 2006-09-06 | 2010-09-14 | National Chung Cheng University | Modified hemoglobin with allosteric effector conjugated |
US7494974B2 (en) | 2006-10-24 | 2009-02-24 | Ikor, Inc. | Carboxymethylated cross-linked tetrameric hemoglobin |
US7504377B2 (en) | 2006-10-23 | 2009-03-17 | Ikor, Inc. | Nitric oxide-blocked cross-linked tetrameric hemoglobin |
US7989593B1 (en) | 2010-05-27 | 2011-08-02 | Bing Lou Wong | Method for the preparation of a high-temperature stable oxygen-carrier-containing pharmaceutical composition and the use thereof |
US7932356B1 (en) | 2010-06-23 | 2011-04-26 | Bing Lou Wong | Method for the preparation of a heat stable oxygen carrier-containing pharmaceutical composition |
-
2011
- 2011-08-25 US US13/217,337 patent/US8084581B1/en not_active Expired - Fee Related
- 2011-08-31 EA EA201101154A patent/EA020891B1/ru not_active IP Right Cessation
-
2012
- 2012-04-23 SG SG2013080080A patent/SG194677A1/en unknown
- 2012-04-23 AP AP2013007232A patent/AP2013007232A0/xx unknown
- 2012-04-23 EP EP12776139.3A patent/EP2702067B1/fr not_active Not-in-force
- 2012-04-23 BR BR112013027756A patent/BR112013027756A2/pt not_active Application Discontinuation
- 2012-04-23 DK DK12776139.3T patent/DK2702067T3/en active
- 2012-04-23 MX MX2013012614A patent/MX353814B/es active IP Right Grant
- 2012-04-23 KR KR1020137031473A patent/KR20140031915A/ko not_active Application Discontinuation
- 2012-04-23 MA MA36374A patent/MA35067B1/fr unknown
- 2012-04-23 ES ES12776139.3T patent/ES2668674T3/es active Active
- 2012-04-23 WO PCT/US2012/034608 patent/WO2012148832A2/fr not_active Application Discontinuation
- 2012-04-23 AU AU2012249996A patent/AU2012249996A1/en not_active Abandoned
- 2012-04-23 CA CA2834508A patent/CA2834508A1/fr not_active Abandoned
- 2012-04-23 MY MYPI2013003924A patent/MY162401A/en unknown
-
2013
- 2013-10-28 IL IL229107A patent/IL229107B/en active IP Right Grant
- 2013-10-28 CL CL2013003111A patent/CL2013003111A1/es unknown
- 2013-10-29 ZA ZA2013/08059A patent/ZA201308059B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AP2013007232A0 (en) | 2013-11-30 |
EP2702067B1 (fr) | 2018-02-21 |
CL2013003111A1 (es) | 2014-08-29 |
SG194677A1 (en) | 2013-12-30 |
CA2834508A1 (fr) | 2012-11-01 |
WO2012148832A2 (fr) | 2012-11-01 |
AU2012249996A1 (en) | 2013-11-21 |
EP2702067A4 (fr) | 2015-12-30 |
EA020891B1 (ru) | 2015-02-27 |
WO2012148832A8 (fr) | 2013-04-25 |
MX2013012614A (es) | 2014-08-22 |
MX353814B (es) | 2018-01-31 |
MY162401A (en) | 2017-06-15 |
IL229107B (en) | 2018-06-28 |
EA201101154A1 (ru) | 2012-10-30 |
IL229107A0 (en) | 2013-12-31 |
KR20140031915A (ko) | 2014-03-13 |
ES2668674T3 (es) | 2018-05-21 |
EP2702067A2 (fr) | 2014-03-05 |
NZ617344A (en) | 2015-12-24 |
US8084581B1 (en) | 2011-12-27 |
BR112013027756A2 (pt) | 2017-01-03 |
ZA201308059B (en) | 2020-02-26 |
DK2702067T3 (en) | 2018-05-22 |
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