Yoshiki Sasai

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Yoshiki Sasai
Sasai, c. 2012
Born	5 March 1962 Hyogo, Japan
Died	5 August 2014(2014-08-05) (aged 52) Kobe, Hyogo, Japan
Cause of death	Suicide by hanging
Nationality	Japanese
Alma mater	Kyoto University
Awards	Osaka Science Prize Inoue Prize for Science
Scientific career
Fields	Biology
Institutions	RIKEN
Doctoral advisor	Shigetada Nakanishi
Website	www.cdb.riken.jp/sasai/ (archived)

Yoshiki Sasai (笹井 芳樹, Sasai Yoshiki, 5 March 1962 – 5 August 2014) was a Japanese stem cell biologist. He developed methods to guide human embryonic stem cells (hESCs) into forming brain cortex, eyes (optic cups), and other organs in tissue culture. Sasai worked at the Riken Center for Developmental Biology (CDB) in Kobe, and was Director of the Laboratory for Organogenesis and Neurogenesis. Following his involvement in the 2014 STAP cell controversy, Sasai was found dead at Riken from an apparent suicide.