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The most likely purpose for this is to produce embryos for use in stem cell research. This process is also called "research cloning" or "therapeutic cloning". The goal is not to create cloned human beings (called "reproductive cloning"), but rather to harvest stem cells that can be used to study human development and to potentially treat disease.
The following year, this method achieved a key goal of SCNT-based stem cell research: the derivation of pluripotent stem cell lines that have all genes linked to various diseases. [24] Some scientists working on SCNT-based stem cell research have recently moved to the new methods of induced pluripotent stem cells.
Therapeutic cloning would involve cloning cells from a human for use in medicine and transplants. It is an active area of research, and is in medical practice over the world. Two common methods of therapeutic cloning that are being researched are somatic-cell nuclear transfer and (more recently) pluripotent stem cell induction .
Even an attempt last year only used baby cells. The process just took a gigantic step forward, though, as scientists have finally used an adult human's stem cells to clone a pre-embryonic ...
Cloning embryonic stem. The promise of stem cells, along with the controversy surrounding it, has made the industry a hot-button issue for many. Despite that promise, we have yet to see huge ...
Patient-matched embryonic stem cell lines can now be derived using somatic cell nuclear transfer (SCNT). [citation needed] Since iPSCs can be derived directly from adult tissues, they not only bypass the need for embryos, but can be made in a patient-matched manner, which means that each individual could have their own pluripotent stem cell line.
The reprogramming process that cells need to go through during cloning is not perfect and embryos produced by nuclear transfer often show abnormal development. [33] [34] Making cloned mammals was highly inefficient – in 1996, Dolly was the only lamb that survived to adulthood from 277 attempts.
Nuclear transfer is a delicate process that is a major hurdle in the development of cloning technology. [5] Materials used in this procedure are a microscope, a holding pipette (small vacuum) to keep the oocyte in place, and a micropipette (hair-thin needle) capable of extracting the nucleus of a cell using a vacuum.
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