Although in my years as a stem cell biologist I haven’t yet been in a leadership role at the International Society for Stem Cell Research or ISSCR, unproven stem cell clinics have claimed that I somehow speak for ISSCR. I am just a standard member of the group like thousands of other researchers. In fact, […]
Recommended reads: ISSCR guidelines pushback, TB outbreak from regen product, pubs Read More »
Something called the 14-day rule on growing human embryos in the lab helped keep a tough question in check for a long time: when is it ethically wrong or just practically unwise to continue growing a human embryo for research? There is no good answer based on science or anything else. ISSCR moves beyond strict
Risks rise as ISSCR drops strict 14-day rule on human embryo growth in the lab Read More »
A new Cell paper from an international team led by Juan Carlos Izpisua Belmonte pushes human embryo chimera embryo research further than ever before. It is both exciting work and raises many complex bioethics questions at the same time. What is a human embryo chimera? By way of background, chimeric human embryos contain a mixture
Monkey human embryo chimera Cell paper: exciting, ethically complex direction Read More »
A new word has been added to the lexicon of human stem cell research – blastoids, aka “blastocyst-like structures.” Unlike the familiar three-layered embryo that emerges during the third week of prenatal development, the earlier blastocyst resembles a fluid-filled soccer ball, with a smear of cells on the interior face destined to develop into the
New lab-grown blastoids are strikingly similar to human embryos Read More »
Michael Le Page over at The New Scientist reports on a new paper describing the birth of monkey-piglet chimeras. Unlike most such primate embryo chimeras formed in research in the past, these were allowed to be born. A litter of ten from the new monkey-pig research, two of which were chimeras, all rather quickly died
Monkey-pig chimeras pub discouraging for similar human research toward organ transplants Read More »
Did Chinese researcher He Jiankui really CRISPR gene edit the CCR5 gene in two embryos producing twin baby girls? In my opinion the answer is “no”, but probably not for the reason you might think at first. He proclaims gene edits He claimed he had made twin baby girls with “gene edits”, which I feel is unethical
He Jiankui didn’t really gene edit those girls; he mutated them Read More »
Remember that Shoukhrat Mitalipov lab paper on the use of CRISPR in human embryos? It’s back in the news. One of the biggest stories of 2017 centered on a Nature paper (Ma, et al., see my quick, initial review shortly after it was published here) from Mitalipov’s lab claiming both efficient repair of a disease-causing
Mitalipov rebuts CRISPR pub critiques: strengthens case, but puzzles remain Read More »
My first job in science was as a lab technician at UCSD School of Medicine and a big part of that job was growing cells called HUVECs or human umbilical vein endothelial cells. We isolated and grew the HUVECs from umbilical cords that we retrieved from the maternity ward of the UCSD hospital, which first
Why we shouldn’t view the human embryo as a gizmo even in the CRISPR era Read More »
UK biologist Kathy Niakan has asked governmental permission to make GM human embryos using CRISPR. Earlier this year, a research team in China crossed a scientific line for the first time in history by using gene editing technology called CRISPR-Cas9 to make genetically modified (GM) human embryos. Other researchers around the world including now one
UK Biologist Kathy Niakan Asks to Make GM Human Embryos For Research Read More »
A lot has happened in the week since the first human embryo genetic modification paper was published by a team led by Junjiu Huang. There have been a number of new events just in the last few days. Jocelyn Kaiser over at SCIENCEINSIDER has a new piece reporting a couple important developments including that the journal
News bites & rumors on human embryo genetic modification Read More »