Navigation Links
Embryonic Pathways Induce Stem Cell Traits
Date:5/15/2008

Regenerative ability holds promise for development of target-specific cancer drugs

THURSDAY, May 15 (HealthDay News) -- Scientists have found that normal cells and cancer cells that acquire the ability to use long dormant pathways to migrate through the body may gain properties of adult stem cells, including the ability to self-renew.

The finding helps researchers better understand adult stem cell creation -- knowledge they hope will lead to developing healthy stem cells for regenerative medicine and target-specific cancer drugs.

Research published online May 15 in Cell shows that cells that undergo an "epithelial-to-mesenchymal" (EMT) transition, in mice or humans, acquire many important stem cell characteristics. The study also shows that normal, naturally existing stem cells and tumor-seeding cancer stem cells share characteristics with these post-EMT cells.

"This for us is a very exciting discovery, not only because of its unexpectedness, but because it offers a route by which one could in principle generate unlimited numbers of stem cells committed to create a specific cell type," researcher Robert Weinberg, a professor of biology at Massachusetts Institute of Technology, said in a prepared statement. "One could imagine, for example, that if one takes skin cells and induces them to undergo an EMT, they could become skin stem cells."

Epithelial cells, which make up most of the human body, bind in sheet-like structures. In embryonic development, the EMT process disrupts this adhesion and changes the cells into more loosely associated mesenchymal cells. In the context of cancer development, some cancer cells within a primary cancer may undergo EMT, migrate through the body to their end destination, and then undergo a reverse conversion back to their original epithelial form.

Inducing the EMT process can produce cells with many characteristics of cancer stem cells, the researchers discovered. This finding could help solve why tumor cells spread into different sites and multiply enough to form a new tumor.

"If you take a population of human cancer cells that normally form a tumor very inefficiently and induce an EMT, their tumor-initiating abilities increase by about a hundredfold, so that it takes about 10,000 cells, rather than a million cells, to form a tumor," co-lead author Wenjun Guo, a postdoctoral researcher in Weinberg's lab, said in a prepared statement. "This suggests cancer stem cells are using preexisting normal stem cell machinery to propagate their own self-renewal and therefore their tumor-initiating ability."

More information

The National Institutes of Health has more about stem cells.



-- Kevin McKeever



SOURCE: Massachusetts Institute of Technology, news release, May 15, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Embryonic Stem Cells Repair Human Heart
2. Embryonic Human Stem Cells May Help Repair Heart Muscle, Lab Study Shows
3. Embryonic stem cells used to grow cartilage
4. Embryonic stem cells thrive when shaken
5. Stem cells in adult testes provide alternative to embryonic stem cells for organ regeneration
6. Study Probes Difference Between Embryonic, Adult Stem Cells
7. Serum carcinoembryonic antigen level can reflect adrenal adenoma
8. UC Davis researchers find evidence of mature heart cell potential in embryonic stem cells
9. Human embryonic stem cell lines created that avoid immune rejection
10. Embryonic Stem Cells Create Healthy Muscle in Mice
11. Scientists Reprogram Human Skin Cells Into Embryonic Stem Cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2017)... ... August 19, 2017 , ... Praeclarus ... breastfeeding mothers. These illustrations show the diversity of the breastfeeding mothers, using ... wide range of sizes. These illustrations are also available on tote bags, notepads, ...
(Date:8/18/2017)... ... August 19, 2017 , ... ... Thailand presided over the Amazing Thailand Health and Wellness Tourism Showcase 2017 yesterday, ... Noppadon Pakprot, Deputy Governor for Tourism Products and Business at TAT said, “Thailand ...
(Date:8/18/2017)... York, NY (PRWEB) , ... August 18, 2017 ... ... launch of this summer’s edition of “Vision & Hearing,” advocating for active, healthy ... campaign focuses on resources available for individuals with hearing impairments and shares the ...
(Date:8/18/2017)... ... August 18, 2017 , ... ... and asset protection assistance to communities in North-Central West Virginia, is embarking on ... to at-risk boys in the area. , The Chestnut Mountain Ranch (CMR) is ...
(Date:8/18/2017)... ... ... The Golseth Agency, a Texas based insurance management and financial planning assistance ... campaign organized to provide support to Christina Upchurch and her two children after the ... children returned from out of town to find her husband passed away and their ...
Breaking Medicine News(10 mins):
(Date:8/10/2017)... Colo. , Aug. 10, 2017  Physical Rehabilitation Network ... located in Lakewood, Colorado . The reputable ... Jeff Lipkin , PT, DPT with his staff of four ... University of Pittsburgh and brings over 10 years of experience ... Belmar PT marks the 10th PRN clinic in ...
(Date:8/7/2017)... Md. , Aug. 7, 2017 ... healthcare member acquisition, retention, and engagement, announced the ... of Strategy and Product Development, effective as of ... consulting and technology implementation strategy for our clients. ... of experience in consulting and business analytics within ...
(Date:8/7/2017)... Inc. (NYSE: DPLO), the nation,s largest independent specialty pharmacy, announced ... comparisons, unless otherwise noted, are to the quarter ended June ... Quarter 2017 Highlights include: Revenue of ... Total prescriptions dispensed of 220,000, compared to ... Gross profit per prescription dispensed of ...
Breaking Medicine Technology: