Chinese scientists have bred mice from cells that might offer an alternative to human embryonic stem cells, producing the most definitive evidence yet that the technique could help sidestep many of the explosive ethical issues engulfing the controversial field but raising alarm that the advance could lead to human cloning and designer babies.
In papers published online Thursday by two scientific journals, separate teams of researchers from Beijing and Shanghai reported that they had for the first time created virtual genetic duplicates of mice using skin cells from adult animals that had been coaxed into the equivalent of embryonic stem
Advanced Cell Technology, a leader in the field of regenerative medicine, today announced treatment of the first patient in its Phase 1/2 clinical trial for Stargardt’s macular dystrophy (SMD) using retinal pigment epithelial (RPE) cells derived from human embryonic stem cells (hESCs). The surgery was performed on Friday, Jan. 20, at the Moorfields Eye Hospital in London by a team of surgeons led by Professor James Bainbridge, consultant surgeon at Moorfields and Chair of Retinal Studies at University College London. The patient successfully underwent the procedure without any complications. ACT and Moorfields Eye Hospital received clearance in September from
Stem-cell science is a fast-moving field. Just three years since a Japanese researcher first reprogrammed ordinary skin cells into stem cells without the use of embryos, scientists at a Massachusetts biotech company have repeated the feat, only this time with a new method that creates the first stem cells safe enough for human use. The achievement brings the potentially lifesaving technology one step closer to real treatments for disease.
Dr. Robert Lanza, chief scientific officer at Advanced Cell Technology (ACT), reported today in the journal Cell that his team has created stem cells using human skin cells and four proteins.
And now there are three: in the wake of announcements from laboratories in Oregon and California that they had created human embryos by cloning cells of living people, a lab in New York announced on Monday that it had done that and more.
In addition to cloning the cells of a woman with diabetes, producing embryos and stem cells that are her perfect genetic matches, scientists got the stem cells to differentiate into cells able to secrete insulin.
That raised hopes for realizing a long-held dream of stem cell research, namely, creating patient-specific replacement cells for people with diabetes, Parkinson’s disease,
LONDON: Scientists have for the first time turned adult human skin cells into stem cells, which can grow into any type of tissue in the body, using cloning techniques.
Using the cloning technique which produced Dolly the sheep in 1996, researchers were able to turn skin cells from a 35-year-old man and a 75-year-old man into stem cells, raising the prospect that body parts could be regenerated in old age.
Last year, a team of researchers had created stem cells from the skin cells of babies but it was unclear whether it would work in adults because cells mutate with age.