C
Chris O'Sullivan
Researcher at Geron Corporation
Publications - 6
Citations - 2892
Chris O'Sullivan is an academic researcher from Geron Corporation. The author has contributed to research in topics: Embryonic stem cell & Cell culture. The author has an hindex of 5, co-authored 6 publications receiving 2787 citations.
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Journal ArticleDOI
Cardiomyocytes derived from human embryonic stem cells in pro-survival factors enhance function of infarcted rat hearts
Michael A. Laflamme,Kent Chen,Anna V. Naumova,Veronica Muskheli,James A. Fugate,Sarah K. Dupras,Hans Reinecke,Chunhui Xu,Mohammad Hassanipour,Chris O'Sullivan,Lila R. Collins,Yinhong Chen,Elina Minami,Edward A. Gill,Shuichi Ueno,Chun Yuan,Joseph K. Gold,Charles E. Murry +17 more
TL;DR: This work generated highly purified human cardiomyocytes using a readily scalable system for directed differentiation that relies on activin A and BMP4, and identified a cocktail of pro-survival factors that limitsCardiomyocyte death after transplantation.
Journal ArticleDOI
Basic Fibroblast Growth Factor Supports Undifferentiated Human Embryonic Stem Cell Growth Without Conditioned Medium
Chunhui Xu,Elen S. Rosler,Jianjie Jiang,Jane S. Lebkowski,Joseph D. Gold,Chris O'Sullivan,Karen Delavan-Boorsma,Michael Mok,Adrienne Bronstein,Melissa K. Carpenter +9 more
TL;DR: Cells in media containing Flt‐3L, thrombopoietin, and SCF, individually or in combination, showed almost complete differentiation after 6 weeks in culture, demonstrating that hESCs can be maintained in nonconditioned medium using growth factors.
Journal ArticleDOI
Efficient generation and cryopreservation of cardiomyocytes derived from human embryonic stem cells
Chunhui Xu,Mohammad Hassanipour,Yan Li,Yinhong Chen,Catherine A. Priest,Chris O'Sullivan,Michael A. Laflamme,Wei-Zhong Zhu,Benjamin Van Biber,Livia Hegerova,Jiwei Yang,Karen Delavan-Boorsma,Anthony Davies,Jane S. Lebkowski,Joseph D. Gold +14 more
TL;DR: These results demonstrate that cardiomyocytes of high quality can be efficiently generated and cryopreserved using hESCs maintained in serum-free medium, a step forward towards the application of these cells to human clinical use or drug discovery.
Journal ArticleDOI
Conditionally replicative adenovirus driven by the human telomerase promoter provides broad-spectrum antitumor activity without liver toxicity.
John M. Irving,Zhuo Wang,Sandra Powell,Chris O'Sullivan,Michael Mok,Brian Murphy,Cardoza Lisa M,Jane S. Lebkowski,Anish Sen Majumdar +8 more
TL;DR: These studies demonstrate that an oncolytic virus driven by the telomerase promoter can be used to effectively kill a wide variety of cancer cell types and has the potential to treat primary and metastatic cancer of diverse origins.
Journal ArticleDOI
Human embryonic stem cell-derived cardiomyocytes can be maintained in defined medium without serum.
Chunhui Xu,Jia-Qiang He,Timothy J. Kamp,Xiaoming Hao,Chris O'Sullivan,Melissa K. Carpenter,Jane S. Lebkowski,Joseph D. Gold +7 more
TL;DR: It is shown that culturing hES cell-derived cardiomyocytes in serum-free medium as described here should facilitate the use of the cells for in vitro and in vivo applications.