I’ve been following the research related to human cloning now for more than a decade. Is human cloning more possible at this point? How do we even define such cloning? Did you know there are two types? The goal of this post is to educate you and in the process answer such questions. What’s in […]
Human cloning is more likely now but would you take the big risks? Read More »
A human embryo model is a laboratory-produced collection of living cells that has some key things in common with real human embryos. They are made from pluripotent stem cells, which include embryonic stem cells and induced pluripotent stem cells or iPS cells. This research is both exciting and ethically complicated, raising some difficult questions. Embryo
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 »
This was an unusual week in that three papers in a sense collided together related to embryo production and growth, raising new research possibilities but also serious ethical questions. New research: what is an embryo & what is not? The first two Nature papers reported generating the most realistic models of human embryos from scratch
Weekly reads: embryo pubs stir things up, organoids crying, & more 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 »
Editors note: This is a guest post from Caroline Simons who is attending the two Paris meetings on human gene editing. For more background on those meetings see here. By Caroline Simons There were just over a hundred participants at the workshop organized by the Federation of European Academies of Medicine, the UK Academy of
Paris human gene editing workshop summary Read More »
Below is a conversation with bioethics commentator Kelly Hills (who BTW has a great blog), tackling some of the key issues surrounding the potential use of CRISPR-Cas9 technology to make heritable human genetic modification. I really appreciate her clear and insightful answers to some tough questions that many are grappling with today on this topic. Part
Kelly Hills interview: human genetic modification & bioethics Read More »
The topic of heritable human genetic modification has been heating up recently. Prominent scientists, ethicists, and legal scholars have being weighing in, and there is a range of attitudes. Some favor a complete, moratorium including even lab work, while on the other end of the spectrum there are those who have a more liberal perspective. Many
Nita Farahany Interview on Human Germline Modification: Defining A Road Forward Read More »
It is always exciting when a biomedical technology as revolutionary as iPS cells is on the cusp of being used in patients for the first time. In the last few days stories have reported about how a proposed clinical trial based on iPS cells has completed several regulatory steps and is closer to starting. This
Supposedly there is a type of normal adult stem cell that intrinsically possesses many of the same properties as embryonic stem cells (ESCs). No reprogramming needed. No blastocysts needed. These reportedly amazing cells, called Very Small Embryonic-Like Stem Cells (VSELs), can in theory be isolated from umbilical cord blood (UCB) or even bone marrow. Yet