Cold storage of pegylated platelets at about or below...

Chemistry: molecular biology and microbiology – Maintaining blood or sperm in a physiologically active state...

Reexamination Certificate

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Reexamination Certificate

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08067151

ABSTRACT:
A method for storing and using platelets and an associated platelet structure. At least one modified platelet is formed. Each modified platelet includes a platelet and at least one polymerated chemical. Each polymerated chemical includes a polymer covalently bonded directly to the platelet or includes the polymer and a linker molecule such that the linker molecule is covalently bonded to the platelet and the polymer is covalently attached to the linker molecule. The polymer of each polymerated chemical of each modified platelet is polyethylene glycol (PEG) or a PEG derivative. Forming each modified platelet does not include modifying the platelet membrane of each platelet with a glycan-modifying agent. The at least one modified platelet is stored in a temperature range below 0° C. After being stored, the at least one modified platelet may be introduced into a subject to treat a condition related to a reduced platelet function.

REFERENCES:
patent: 3729947 (1973-05-01), Higuchi
patent: 4389490 (1983-06-01), Crews et al.
patent: 4471051 (1984-09-01), Babior et al.
patent: 4764463 (1988-08-01), Mason
patent: 5378601 (1995-01-01), Gepner-Puszkin
patent: 5576213 (1996-11-01), Stossel
patent: 5622867 (1997-04-01), Livesey
patent: 5876676 (1999-03-01), Stossel et al.
patent: 5908624 (1999-06-01), Scott et al.
patent: 5919614 (1999-07-01), Livesey
patent: 6221669 (2001-04-01), Livesey
patent: 6268119 (2001-07-01), Sumita et al.
patent: 6413713 (2002-07-01), Serebrennikov
patent: 6524586 (2003-02-01), Scott
patent: 6555656 (2003-04-01), Scott
patent: 6613566 (2003-09-01), Kandler et al.
patent: 6699465 (2004-03-01), Scott
patent: 6828090 (2004-12-01), Lucas
patent: 2002/0132225 (2002-09-01), Stossel et al.
patent: 2003/0158507 (2003-08-01), Serebrennikov et al.
patent: 2004/0185036 (2004-09-01), Stossel et al.
patent: 2004/0223957 (2004-11-01), Lucas
patent: 2005/0019743 (2005-01-01), Wagner
patent: 2008/0193430 (2008-08-01), Scott et al.
patent: 0786934 (1999-05-01), None
patent: 1124413 (2003-04-01), None
patent: 0853881 (2004-02-01), None
patent: 1161143 (2004-05-01), None
patent: 2099282 (1982-12-01), None
patent: WO94/02015 (1994-02-01), None
patent: WO96/13158 (1996-05-01), None
patent: WO97/28254 (1997-08-01), None
patent: WO97/30350 (1997-08-01), None
patent: WO99/00145 (1999-01-01), None
patent: WO00/53008 (2000-09-01), None
patent: WO2004/105837 (2004-12-01), None
patent: WO2006/044790 (2006-04-01), None
patent: WO2008/027917 (2008-03-01), None
patent: WO2008/100666 (2008-08-01), None
Racz, Z. “Protective Effect of Cryoprotectants on Human Platelets After Repeated Freeze-Thaw Cycles” Cryo-letters 4:193-196 (1983).
Zhang et al. “Metergasis of platelets camouflaged by mPEG with different active groups” Junshi Yixhu Kexueyuan (Bull Acad Mil Med Sci) 31: 235-236 (2007).
Zhang et al. “Effects of platelets CD42a modification by mPEG-SPA with different molecular mass” Nan Fang Yi Ke Da Xue Xue Bao (J of Southern Medical University) 27: 392-393 (2007).
Gulliksson et al. , “Storage of Platelets in Additive Solutions: Effects of Phosphate”, Vox Sanguinis 78: 176-184 (2000).
Sweeney et al. “L-carnithine and its possible role in red cell and platelet storage”, Transf. Med. Rev. 18:58-65 (2004), abstract only [retrieved on Mar. 4, 2009] Retrieved from the Internet <http://www.ncbi.nlm.nih.gov/pubmed/14689378?ordinalpos=4&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed—ResultsPanel.Pubmed—DefaultReportPanel.Pubmed—RVDocSum>, 1 page.
Iwasaki et al. “Preservation of Platelet Function on Phospholipid Polymer Surfaces”, Tokyo Ika Shika Daigaku Seitai Zairyo Kogaku Kenkyujo Hokuku 35:13-21 (2001), abstract only.
Murphy et al. “The case for a new approach for documenting platelet viability” Transfusion 46 (supplement): 49S-52S (2006).
Slichter et al. “Viability and function of 8-day-stored apheresis platelets” Transfusion 46: 1763-1769 (2006).
Valeri et al. “Effect of thrombopoietin alone and a combination of cytochalasin B and ethylene glycol bis(beta-aminoethyl ether) N,N′-tetraacetic acid-AM on the survival and function of autologous baboon platelets stored at 4 degrees C for as long as 5 days” Transfusion 44: 865-870 (2004), abstract only [retrieved on Mar. 24, 2009] Retrieved from the Internet <http://www.ncbi.nlm.nih.gov/pubmed/15157253>, 1 page.
Antigen Camouflage [retrieved on Mar. 24, 2009] Retrieved from the Internet <http://www.bloodbook.com/substitute.html#ANTIGEN%20CAMOUFLAGE>, 5 pages.
Cold Liquid-Stored Platelets [retrieved on Mar. 24, 2009] Retrieved from the Internet <http://biomed.brown.edu/Courses/BI108/BI108—2005—Groups/10/webpages/plateletslink.htm>, 3 pages.
Slichter et al. “In Vivo Studies of Autologous Platelets Stored at Room Temperature (22oC), 4oC, and 4oC with Galactosylation” Blood (ASH Annual Meeting Abstracts) 108: Abstract 580 (2006) [retrieved on Mar. 24, 2009] Retrieved from the Internet <http://abstracts.hematologylibrary.org/cgi/content/abstract/108/11/580>, 2 pages.
Rumjantseva et al. “Hepatocytes Ingest Longterm Refrigerated Platelets: A Novel Platelet Clearance Mechanism” Blood (ASH Annual Meeting Abstracts) 108: Abstract 1523 (2006) [retrieved on Mar. 24, 2009] Retrieved from the Internet <http://abstracts.hematologylibrary.org/cgi/content/abstract/108/11/1523?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&fulltext=rumjantseva&searchid=1&FIRSTINDEX=0&sortspec=relevance&resourcetype=HWCIT>, 1 page.
Rothwell et al. “Correlation of in vivo and in vitro functions of fresh and stored human platelets” Transfusion 40: 988-993 (2000).
Wandall et al. “Galactosylation does not prevent the rapid clearance of long-term 4oC stored platelets” Blood DOI 10.1182/blood-2007-06-097295 (Dec. 20, 2007).
Bakaltcheva et al. “Effects of Blood Product Storage Protectants on Blood Coagulation” Transfusion Medecine Reviews 17: 263-271 (2003).

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