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:4/21/2017)... ... April 21, 2017 , ... Airway ... new partnership with the highly regarded and well renowned Asian distributor, Discovery Sleep. ... & myTAP PAP Nasal Pillow Mask, and will stabilize and strengthen Airway’s presence ...
(Date:4/21/2017)... ... April 21, 2017 , ... ... imaging practices, is seeking candidates to serve on its Accreditation and Standards ... , “RadSite’s ultimate mission is improving image quality and reducing patient radiation ...
(Date:4/21/2017)... CA (PRWEB) , ... April 21, 2017 , ... ... to experienced, personalized dental care since 1985. After thirty-two years, Dr. Latner has become ... privilege to help my numerous clients over the years with all their dental needs,” ...
(Date:4/21/2017)... ... ... During April 21-23, Super-Sod will join the vendor market of the Sacred Heart ... from the avid gardener to the landscape admirer — during the three-day schedule. , ... grand venue, and we are certainly looking forward to participating in this year’s festival,” ...
(Date:4/21/2017)... (PRWEB) , ... April 21, 2017 , ... ... Service Provider, announces a significant bandwidth upgrade infrastructure service to Tele-Media Solutions. ... Solutions. One of IFN’s consortium member-owners, Tele-Media Solution’s protect transport with 3GB ...
Breaking Medicine News(10 mins):
(Date:4/20/2017)... , April 20, 2017  Cogentix Medical, ... focused on providing the Urology, Uro/Gyn and Gynecology ... that Ash Keswani has joined the Company as ... this newly created position, Mr. Keswani will report ... CEO. "Our organization is delighted that ...
(Date:4/20/2017)... April 20, 2017 Research and Markets has ... Innovation Driven by Rapidly Expanding Injectables Market and Increasing Usage of ... ... delivery technologies will rise from USD 20 Billion in 2015 to ... Drug Delivery Technologies - Innovation Driven by Rapidly Expanding Injectables Market ...
(Date:4/20/2017)... 2017 Eyevensys, a private biotechnology ... gene expression technology that enables the safe, local, sustained ... a wide range of ophthalmic diseases, announces it has ... Regulatory Agency (MHRA) to advance its technology into clinical ... The ...
Breaking Medicine Technology: