Method for efficient transfer of human blastocyst-derived...

Chemistry: molecular biology and microbiology – Animal cell – per se ; composition thereof; process of... – Primate cell – per se

Reexamination Certificate

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C435S375000, C435S377000, C435S378000, C435S379000, C435S395000

Reexamination Certificate

active

07638328

ABSTRACT:
A method for the transfer of human blastocyst-derived stem cells (hBS cells) to feeder-free culture system and propagation of the cells in such a feeder-free culture system, the method comprising the following steps of (a) transferring the balstocyst-derived stem cells from feeder to feeder free culture by mechanical treatment, (b) optionally, culturing the blastocyst-derived stem cells under feeder cell free growth conditions in a suitable growth medium and/or on a suitable support substrate, and (c) optionally passaging the blastocyst derived stem cell line every 3-10 days by enzymatic and/or mechanical treatment. The invention also relates to the application of hBS cells cultured under feeder free condition in medicine (e.g., myocardial regeneration) and screening and toxicity tests.

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