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Title:
STORAGE LIQUID FOR MAMMALIAN CELLS
Document Type and Number:
WIPO Patent Application WO/2020/189538
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a novel storage liquid for storing mammalian cells over a long period of time in a non-frozen state. Ascorbic acid and/or niacin are added to an isotonic liquid to give a storage liquid. Then the storage liquid is mixed with platelets and stored under shaking. Thus, deterioration in the functions of the platelets and a decrease in the survival rate thereof can be prevented for at least 10 days. When the aforesaid storage liquid is mixed with mesenchymal stem cells, megakaryocytes or T cells and stored in a non-frozen state, deterioration in the functions of these cells and a decrease in the survival rate thereof can be prevented for at least from several days to several ten days.

Inventors:
TOMIZUKA JUNKO (JP)
SHIGEMORI TOMOHIRO (JP)
WATANABE NATSUKI (JP)
TAKENAWA TAICHI (JP)
SHIRAKAWA CHIKAGE (JP)
NISHIMURA MASUHIRO (JP)
FUJITA YASUTAKA (JP)
SAWAMOTO OSAMU (JP)
Application Number:
PCT/JP2020/011002
Publication Date:
September 24, 2020
Filing Date:
March 13, 2020
Export Citation:
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Assignee:
MEGAKARYON CORP (JP)
OTSUKA PHARMA FACTORY INC (JP)
International Classes:
C12N5/0775; C12N1/04; C12N5/078; C12N5/0783
Domestic Patent References:
WO2018097226A12018-05-31
WO2017065280A12017-04-20
WO2014208053A12014-12-31
WO2017077964A12017-05-11
WO2017073656A12017-05-04
WO2014208053A12014-12-31
Foreign References:
JP2016538859A2016-12-15
JP2018516955A2018-06-28
US20160205923A12016-07-21
JP2018515099A2018-06-14
JP2018034667W2018-09-19
JP2018153196A2018-10-04
JP2012115253A2012-06-21
Other References:
HIGA, YUKIE : "No. 16 Effect of preserved PC on platelet function by addition of water-soluble vitamins, About the effect of vitamin C", JOURNAL OF THE JAPAN SOCIETY OF BLOOD TRANSFUSION, vol. 48, no. 1, 2002, pages 48, XP009530637, ISSN: 0546-1448
GIAMMONA, L. M. ET AL.: "Nicotinamide (vitamin B3) increases the polyploidisation and proplatelet formation of cultured primary human megakaryocytes", BRITISH JOURNAL OF HAEMATOLOGY, vol. 135, 2006, pages 554 - 566, XP055135582, DOI: 10.1111/j.1365-2141.2006.06341.x
XU, Y. ET AL.: "Tannic acid attenuated irradiation-induced apoptosis in megakaryocytes", EXPERIMENTAL CELL RESEARCH, vol. 370, 2018, pages 409 - 416, XP085447194, DOI: 10.1016/j.yexcr.2018.07.003
TAKAYAMA, BLOOD, vol. 111, 2008, pages 5298 - 5306
TYLER, BLOOD, vol. 121, 2013, pages 308 - 317
CAMPBELL, CLIN VACCINE IMMUNOL, vol. 16, 2009, pages 1648 - 53
TAKAYAMA ET AL., J. EXP. MED., vol. 13, 2010, pages 2817 - 2830
KOBAYASHI ET AL., CELL, vol. 142, no. 5, 2010, pages 787 - 799
"Japanese Red Cross Society, the package insert of Irradiated Washed Platelets-LR ''NISSEKI", JAPANESE JOURNAL OF TRANSFUSION AND CELL THERAPY, vol. 59, no. 3, 2013, pages 492 - 498
NISHIMURA, XENOTRANSPLANTATION, vol. 26, no. 3, May 2019 (2019-05-01), pages e12501
See also references of EP 3940061A4
Attorney, Agent or Firm:
HIROTA, Masanori (JP)
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