As many of you know, the pioneering, first of its kind IPS cell clinical study in Japan has been suspended as I first blogged about here.2020 Update: I believe a version of this study is ongoing. In the comments section of that blog post there has been a helpful overall discussion that has involved Dr. […]
Historic turning point for IPS cell field in Japan? Read More »
The pioneering induced pluripotent stem cell (IPSC) clinical study in Japan led by top stem cell clinical researcher Dr. Masayo Takahashi has been stopped reports the WSJ in Japan. This development is confirmed by other sources and in a PDF report by RIKEN (in Japanese here). One patient was transplanted in September 2014 with their own IPSC-derived
Landmark IPSC clinical study on hold due to genomic issue Read More »
The big stem cell news already this week is the acquisition by Fujifilm of Cellular Dynamics International (CDI) for a whopping $307 million dollars or about $16.50 per CDI share. You can read the press release here. Update: The entity is now known as Fujifilm Cellular Dynamics. It was less than two years ago that CDI did
Was Fujifilm CDI acquisition a good move by the companies? Read More »
A cool new paper is out in Stem Cell Reports describing long-term tumorigenicity of human induced pluripotent stem cells (IPSC or IPS cells). See graphical abstract. The potential tumorigenicity of IPSC is a major concern when teams around the world are translating IPSC technology to the bedside. Past studies including one from my own lab have
Lessons from New IPS Cell Study Showing Tumors Read More »
The still mysterious BioGatekeeper had challenged Yamanaka’s IPS cell patent claiming that it was obvious. The potential implications were huge given the commercial interest in translating IPS cell technology. For background see here, here, and here. There’s pretty much zero information on BioGatekeeper otherwise. Despite the potential seriousness of this patent challenge, just a few days
Challenge of Yamanaka Patent by BioGatekeeper Fails Read More »
In a major first for the stem cell and regenerative medicine fields, a patient in Japan today received a pioneering transplant of a retinal pigmented epithelial (RPE) sheet made from induced pluripotent stem (iPS) cells, also known by the acronym IPSC. This is the first ever iPS cell-based transplant into a human. The patient is
Landmark: patient receives first ever iPS cell based transplant Read More »
A mysterious organization called BioGatekeeper, Inc. has filed a legal challenge to the Yamanaka Patent seeking to cancel it (for more on this see here and here). The technology to change just about any human cell into a super powerful kind of stem cell called induced pluripotent stem cells (iPS cells or iPSC) has great
Phantom of the Stem Cell Opera: BioGatekeeper Read More »
A new patent dispute has exploded in the stem cell field related to induced pluripotent stem (iPS) cells. What’s going on? In 2006, Shinya Yamanaka reported cellular reprogramming to create mouse induced pluripotent stem (iPS) cells in Cell and the next year multiple groups along with Yamanaka’s reported creating human iPS cells. It’s no exaggeration
Challenge tries to cancel Yamanaka iPS cell patent Read More »
A new patent has been awarded to James Sherley for a very unusual method claimed for making induced pluripotent stem (iPS) cells. The patent, No. 8,759,098, claims that a single non-genetic chemical agent, xanthine, can by itself reprogram adult stem cells (ASC) into iPS cells (aka iPSCs; see image they released at left). Surprising patent, huh? Another
Sherley patent for reprogramming method like STAP cells Read More »
In the interview below I talk with Dr. Masayo Takahashi, who is leading a team conducting the first ever in-human clinical study based on iPS cells. The work began with patient enrollment on Aug. 1, 2013 in Japan. Masaya Takahashi background 1. Can you tell us a bit about your background? As an M.D./Ph.D. and
Masayo Takahashi Interview on iPS cells, clinical studies, & more Read More »