Cells derived from different stem cells: Same or different?

May 02, 2011

There are two types of stem cell considered promising sources of cells for regenerative therapies: ES and iPS cells. Recent data indicate these cells are molecularly different, raising the possibility that cells derived from the two sources could be distinct. New research, however, has determined that there is considerable overlap in the genetic programs of thyroid, lung, liver, and pancreas progenitors derived from ES and iPS cells and these progenitors isolated from mouse embryos.

Stem cells are considered by many to be promising candidate sources of cells for therapies to regenerate and repair diseased tissues. There are two types of stem cell considered in this context: embryonic stem (ES) cells, which are derived from early embryos; and induced pluripotent stem (iPS) cells, which are derived by reprogramming cells of the body such that they have the ability to generate any cell type. Recent data indicate that ES and iPS cells are molecularly different, raising the possibility that cells derived from these two sources could be distinct.

A team of researchers, led by Darrell Kotton and Gustavo Mostoslavsky, at Boston University School of Medicine, Boston, has now, however, determined that mouse iPS and parental ES cells show highly similar capacity to be differentiated in vitro into definitive endoderm progenitors — the cells from which , lung, liver, and are derived. Importantly, there was considerable overlap between the genetic programs of definitive endoderm derived from ES and iPS cells in vitro and definitive endoderm isolated from mouse embryos. The authors therefore conclude that their data support the notion that iPS cells could be used for the development of cell-based therapies for diseased endoderm-derived tissues.

Explore further: Researchers discover new mechanism of DNA repair

More information: View this article at: www.jci.org/articles/view/43853?key=1acccf69de7b78a41298

Related Stories

Researchers generate functional neurons from somatic cells

Feb 24, 2009

In a new study, researchers were able to generate functionally mature motor neurons from induced pluripotent stem (iPS) cells, which are engineered from adult somatic cells and can differentiate into most other cell types. ...

Recommended for you

Researchers discover new mechanism of DNA repair

14 hours ago

The DNA molecule is chemically unstable giving rise to DNA lesions of different nature. That is why DNA damage detection, signaling and repair, collectively known as the DNA damage response, are needed.

Stopping Candida in its tracks

Jul 03, 2015

Scientists are one step closer to understanding how a normally harmless fungus changes to become a deadly infectious agent.

New technique maps elusive chemical markers on proteins

Jul 02, 2015

Unveiling how the 20,000 or so proteins in the human body work—and malfunction—is the key to understanding much of health and disease. Now, Salk researchers developed a new technique that allows scientists ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.