Navigation Links
New findings on the formation of body pigment
Date:10/16/2009

The skin's pigment cells can be formed from completely different cells than has hitherto been thought, a new study from the Swedish medical university Karolinska Institutet shows. The results, which are published in the journal Cell, also mean the discovery of a new kind of stem cell.

The body's pigment gives essential protection against UV radiation. It is made up of a substance called melanin, which is produced by pigment cells in the skin called melanocytes. According to the established theory of body pigmentation, these melanocytes bud off from the spinal cord at an early foetal stage and then migrate to the skin where they remain for the rest of their lives.

Scientists at Karolinska Institutet in Stockholm have now shown that most melanocytes actually appear later on in foetal development from an immature cell type that exists in the skin's nerve fibres. These cells, called Schwann cell precursors (SCPs), can also be found in adults. In addition to this, the scientists have demonstrated how neuronal damage in adults can excite the maturation of melanocytes to form hyperpigmentation around the affected nerves.

"Our findings can provide new knowledge of how changes in skin pigmentation occur, not least of the links that have been observed between neurological disease and changes in pigmentation," says Professor Patrik Ernfors, who led the study.

Their results also shed new light on SCP cells, which were previously seen as an immature form of supportive cells the nervous system. The researchers describe how a change in cell signalling can make the SCP cells in the skin develop into pigment cells instead, and argue that SCP cells are really a kind of stem cell.

"This can help science to understand the development of diseases such as melanoma," says Professor Ernfors. "We've always believed that it develops from melanocytes, but maybe it actually originates in the SCP cells."


'/>"/>

Contact: Press Officer Katarina Sternudd
katarina.sternudd@ki.se
46-852-483-895
Karolinska Institutet
Source:Eurekalert

Page: 1

Related medicine news :

1. Many Parents Share Genetic Test Findings With Kids
2. New Alzheimers findings: High stress and genetic risk factor lead to increased memory decline
3. Scientists, physicians present latest findings in personalized cancer treatment and prevention
4. Health psychologists discuss latest research findings
5. Incidental findings found when radiologists take a broader look at renal MRA
6. Chair of U.S. Preventive Services Task Force Pledges to Recommend Re-evaluation of Recent Glaucoma Findings
7. The Organic Trade Association Hails Preliminary Research Findings Showing Nutritional Benefits of Organic Products
8. Key findings for all veterans seen in depression and suicide study
9. Video: BSP Pharma Inc. Announces Groundbreaking Findings from The Australian Centre for Complementary Medicine Education and Research Joint Health Clinical Study
10. 2007 Life Sciences Compensation Findings Disclosed www.compstudy.com
11. Chemoprevention, naturally: Findings on plant-derived cancer medicines
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/1/2015)... ... August 01, 2015 , ... BeverlyD, owner and founder of BeverlyD Luxe Organic ... very first small business donation to kick off the campaign for healing and Well-Being. ... legacy includes a complete line of raw, organic hair care products, as well as ...
(Date:7/31/2015)... ... July 31, 2015 , ... Ticket Down is a reputable source of authentic tickets for ... Arena. Fans of every genre of music will have an act they are excited ... of the festival, the following artists will perform: Sam Smith, Coldplay, Kenny Chesney, The ...
(Date:7/31/2015)... ... ... Ticket Down is a reliable source for authentic tickets for the 2015 ... The festival will end on Sunday, August 2nd. , Music fans have ... This unique and unbelievably popular festival attracts the best in entertainment from around the ...
(Date:7/31/2015)... ... July 31, 2015 , ... The 2nd annual Ride to Fight ... Memphis on October 3, 2015. The Ride to Fight On is a cycling fundraiser ... Methodist Healthcare, The West Clinic and The University of Tennessee Health Science Center. A ...
(Date:7/31/2015)... Rolling Meadows, IL (PRWEB) , ... July 31, ... ... great ways to communicate. Rally Insurance Group, Inc. has re-branded their social media ... provides a personal way for consumers to communicate, find information, share insights ...
Breaking Medicine News(10 mins):Health News:March4thforWellBeing Foundation Kickoff 2Health News:Cheap 2015 iHeartRadio Music Festival Tickets in Las Vegas at MGM Grand Garden Arena: Ticket Down Slashes Ticket Prices on the iHeart Radio Music Festival in Vegas 2Health News:Cheap 2015 iHeartRadio Music Festival Tickets in Las Vegas at MGM Grand Garden Arena: Ticket Down Slashes Ticket Prices on the iHeart Radio Music Festival in Vegas 3Health News:Cheap 2015 Lollapalooza Tickets: Ticket Down Slashes Ticket Prices on Lollapalooza Tickets at Grant Park in Chicago for Saturday, August 1st and Sunday, August 2nd 2Health News:West Cancer Center Announces 2nd Annual Ride to Fight On 2Health News:West Cancer Center Announces 2nd Annual Ride to Fight On 3Health News:Rally Insurance Group, Inc. Connects to Customers Through Re-branded Social Media Profiles 2
... Time for Spring Break and Summer MonthsCOLD SPRING HARBOR, N.Y., ... ear health and creator of EarPlanes(R) and ... ClearEars are revolutionary earplugs containing an FDA approved ... the ears after swimming, or even bathing, can lead to ...
... to Launch Heritage Tributes Line of Caskets in ... Heritage Casket Company, an Irish-owned memorial products company, ... memorialization and death care industries, today announced a ... for the marketing and distribution of a new ...
... dangers from inhalants at lowest point since 1991 , , ... percent of American adolescents who use drugs started by ... and air fresheners to get high, according to a ... by youths 12 to 17 years old include refrigerant ...
... Provider Teams Up with Specialty Print Packaging Materials Company to ... ... Southborough, MA (PRWEB) March 16, 2009 ... trace technology and services provider, recently entered into a collaboration ...
... LAUDERDALE, Fla. and HONG KONG, March 16 OrbusNeich ... manufacturer and marketer of innovative medical devices for the ... filed a lawsuit against Boston Scientific Corporation ("BSC"). ... for the Eastern District of Virginia, asserts claims against ...
... Saving Tips to Prevent Accidental PoisoningSAN FRANCISCO, March ... reported each year to poison control centers across ... Control System (CPCS) is dedicated to providing residents ... relating to poisoning. National Poison Prevention Week, ...
Cached Medicine News:Health News:Leader in Ear Care Health Category Expands Product Line 2Health News:Irish-Owned Heritage Casket Company Strikes Multi-Million-Dollar Partnership Deal With Pennsylvania's Matthews International 2Health News:Fewer Teens Sniffing Glue, Household Products 2Health News:Fewer Teens Sniffing Glue, Household Products 3Health News:PHARMORX Security And MSO Announce Joint Venture 2Health News:PHARMORX Security And MSO Announce Joint Venture 3Health News:OrbusNeich Files Patent Infringement Lawsuit Against Boston Scientific 2Health News:OrbusNeich Files Patent Infringement Lawsuit Against Boston Scientific 3Health News:Poison Prevention Week March 15 - 22 2Health News:Poison Prevention Week March 15 - 22 3
(Date:7/31/2015)... MOUNT PROSPECT, Ill. , July 31, 2015 ... of Pharmacy ® (NABP ® ) issued ... charged with ensuring that action is taken against ... the Internet Drug Outlet Identification Program ... 2015 , thousands of websites ...
(Date:7/31/2015)... 2015  Boston Children,s Hospital physicians report the ... of their anatomy before undergoing high-risk brain procedures. ... in the brain,s blood vessels) that posed special ... the Journal of Neurosurgery: Pediatrics , the ... synthetic resins to create custom, high-fidelity models of ...
(Date:7/31/2015)... Quietly, sedately, Morocco,s pharmaceutical sector ... pharmaceutical industry is strong, with a well-developed base of ... standards. One place where the quality of ... Morocco has quietly become the second largest African exporter ... . Indeed, Moroccan pharma companies have been making inroads ...
Breaking Medicine Technology:NABP Stresses Need for Accountability in Enforcing Internet Policies to Protect the Public From Illegal Online Drug Sellers 2NABP Stresses Need for Accountability in Enforcing Internet Policies to Protect the Public From Illegal Online Drug Sellers 33D Printing Helps Doctors Rehearse Complex Brain Procedures 23D Printing Helps Doctors Rehearse Complex Brain Procedures 33D Printing Helps Doctors Rehearse Complex Brain Procedures 4PharmaBoardroom Releases New Morocco Pharmaceuticals Report 2PharmaBoardroom Releases New Morocco Pharmaceuticals Report 3
Joseph skin hook is a single end-sharp with 2 prong....
Experience great vision, comfort and durability in a quarterly-replacement lens....
A unique lens system featuring Balanced Progressive Technology for optimum vision quality at every distance....
The proven daily wear spherical soft contact lens....
Medicine Products: