Navigation Links
New study resolves the mysterious origin of Merkel cells
Date:9/28/2009

A new study resolves a 130-year-old mystery over the developmental origin of specialized skin cells involved in touch sensation. The findings will appear in the October 5, 2009 issue of the Journal of Cell Biology (online September 28).

First described in 1875, Merkel cells are neuroendocrine cells that reside in the vertebrate epidermis, passing mechanical stimuli on to sensory neurons. In mice, they are mainly found in the paws and around the whiskers but, because they express proteins characteristic of both epithelial and neuronal cells, scientists have long debated whether Merkel cells develop from the epidermis or neural crest.

Van Keymeulen et al. traced the lineage of Merkel cells by fluorescently labeling cells derived from either epidermal or neural crest progenitors. This revealed that Merkel cells originally emerge from the embryonic epidermis. In addition, epidermal stem cells in adult mouse skin replenish the Merkel cell population as they slowly die off over time. The researchers also found that a transcription factor called Atoh1 is required for epidermal progenitors to differentiate into Merkel cellsmice lacking Atoh1 in their skin failed to develop any of the mechanotransducing cells.

Atoh1 acts as a tumor suppressor to prevent an aggressive skin cancer called Merkel cell carcinoma, says senior author Cdric Blanpain. His team now wants to investigate the precise function of the transcription factor in Merkel cell differentiation, as well as the signaling pathways that regulate the process.


'/>"/>

Contact: Rita Sullivan
news@rupress.org
212-327-8603
Rockefeller University Press
Source:Eurekalert  

Page: 1

Related medicine news :

1. Penn study finds pro-death proteins required to regulate healthy immune function
2. New study shows promise in reducing surgical risks associated with surgical bleeding
3. Study, meta-analysis examine factors associated with death from heatstroke
4. Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinsons symptoms
5. Study says COPD testing is not measuring up
6. Preclinical study suggests organ-transplant drug may aid in lupus fight
7. Ability to cope with stress can increase good cholesterol in older white men, study finds
8. High alcohol consumption increases stroke risk, Tulane study says
9. Mailman School of Public Health study examines link between racial discrimination and substance use
10. Pitt study finds inequality in tobacco advertising
11. Stanford study highlights cost-effective method of lowering heart disease risks
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New study resolves the mysterious origin of Merkel cells
(Date:5/26/2016)... ... 26, 2016 , ... Intalere, the healthcare industry leader in ... inaugural Member Conference at the Paris Hotel in Las Vegas, Nev., May 17-20, ... America’s healthcare providers. , The conference was highlighted by the announcement of the ...
(Date:5/26/2016)... ... 26, 2016 , ... The Woodlands at John Knox Village , Florida’s ... care for living and healing, celebrated its grand opening, today. The Woodlands at John ... provided by Empowered Staff. , “This is an incredibly fulfilling time for John Knox ...
(Date:5/26/2016)... ... May 26, 2016 , ... ... development solutions for drugs, biologics, consumer health and global clinical supply services, today ... Korea to support the company’s continued investment and strategic growth plans in the ...
(Date:5/26/2016)... ... May 26, 2016 , ... Memorial Day Weekend marks the unofficial ... is sharing tips to make sure your family and vehicle are ready to ... Council, there may be 439 deaths and an additional 50,500 serious injuries from motor ...
(Date:5/26/2016)... ... 26, 2016 , ... North Cypress Medical Center hosted its 9th ... Cypress. With the help of community partners, the event organizers raised $45,000 for the ... wounded service members and their families through health, wellness, and therapeutic support. , ...
Breaking Medicine News(10 mins):
(Date:5/26/2016)... 2016 TARE (Transarterial Radio-embolization) ... Savings and Overall Decreased Use of Hospital ... international specialist healthcare company, has today announced the ... Meeting of ISPOR (International Society for Pharmacoeconomics and ... (HCC) using yttrium-90 glass microspheres is associated with ...
(Date:5/26/2016)... WELLESLEY, Massachusetts , May 26, 2016 ... sequencing (NGS) has matured into an essential life science ... research and development applications. BCC Research reveals in its ... of a second growth phase, one powered by a ... applied fields.      (Logo: http://photos.prnewswire.com/prnh/20140723/694805 ...
(Date:5/25/2016)... 25, 2016 According to a ... (3D, 2D, 4D), by Therapeutic Area (Oncology, Cosmeceutical/Plastic Surgery), ... (Medical Device Manufacturers, Hospitals/ Clinics) - Forecast to 2021", ... Animation Market for the forecast period of 2016 to ... Million by 2021 from USD 117.3 Million in 2016, ...
Breaking Medicine Technology: