Navigation Links
Chinese scientists discover MVK mutations associated with DSAP
Date:9/16/2012

September 16, 2012, Shenzhen, ChinaA Chinese research team, led by Anhui Medical University and BGI, has found the strong genetic evidences of mevalonate kinase gene (MVK) mutations link to disseminated superficial actinic porokeratosis (DSAP). It is a major step toward discovering the genetic pathogenesisof DSAP, and sheds an eye-opening insight into its further molecular diagnosis and treatment. The latest study was published online in Nature Genetics.

DSAP is a rare, non-cancerous, non-contagious skin disorderthat causes dry, itchy lesions on the arms and legs. It usually begins to develop in adolescents and reach near-complete penetrance by the third or fourth decade of life. The accumulated sun exposure is a risk factor for DSAP. DSAP is a chronic disorder; it can be treated, but it cannot be cured.

In this study, Chinese researchers performed exome sequencing in two affected and one unaffected individuals who belong to a DSAP family. Through variants analysis and data filtering, they supposedthat MVK gene emerged as the only candidate gene located in previously defined linkage region linked to DSAP. Then they confirmed the co-segregation between the identified novel deleterious mutation and DSAP phenotype within the family.

To further identify novel MVK mutations, researchers conducted Sanger sequencing in other DSAP cases, which identified additional novel deleterious mutations. And none of which was detected in 676 unrelated and ethnically matched controls. It provided strong evidence that these novel mutations were not polymorphisms. They did not found MVK mutations in other clinical subtypes of Porokeratosis, suggesting that MVK mutations may be specific to DSAP patients.

Mevalonate kinase, the protein encoded by MVK, is an important enzyme in the mevalonate pathway that is vital for multiple cellular processes by providing cells with essential bioactive molecules. In the investigation of the impact of MVK expression on the biological activities of keratinocytes, researchers indicated thatMVK plays a role in regulating calcium-induced keratinocytes differentiation and the MVK expression could protect keratinocytes from UVA-caused apoptosis.

Tao Jiang, senior scientist of this project at BGI, said, "Considering the high genetic heterogeneity of DSAP, It is fortunate for us to find the causative gene MVK by sequencing only three exomes and using previous genome-wide linkage results. Our study provides new insights into the pathogenesis of DSAP, and the identified MVK mutations offer the best candidate targets for gene diagnosis and clinical treatment of the disease."

Xuejun Zhang, corresponding author of this study, President of Anhui Medical University, said, "The exome sequencing is an effective method for identifying disease gene of monogenetic diseases in recent years. In this study, the Chinese scientists found disease gene MVK for DSAP using exome sequencing plus functional study. It not only indicates China has step into the most advanced level in searchingthe disease genes for monogenetic disease in the world, but also provides scientific basis for revealing DSAP pathogenesis, genetic counseling, risk prediction, prenatal diagnosis, new drug development, clinical diagnosis and treatment."


'/>"/>
Contact: Jia Liu
liujia@genomics.cn
BGI Shenzhen
Source:Eurekalert

Related biology news :

1. Tongue analysis software uses ancient Chinese medicine to warn of disease
2. University of Leeds and Chinese Academy of Sciences join forces
3. Chinese scientists successfully crack the genome of diploid cotton
4. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
5. Queens scientists seek vaccine for Pseudomonas infection
6. Scientists produce eye structures from human blood-derived stem cells
7. American Society of Plant Biologists honors early career women scientists
8. Brandeis scientists win prestigious prize for circadian rhythms research
9. Scientists discover new method of proton transfer
10. Salk scientists open new window into how cancers override cellular growth controls
11. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/14/2016)... NXTD ) ("NXT-ID" or the "Company"), a company ... of a new series of commercials on Time Warner Cable ... .  The commercials will air on Bloomberg TV, Fox Business ... show. --> NXTD ) ("NXT-ID" or the "Company"), ... the airing of a new series of commercials on Time ...
(Date:3/10/2016)... India , March 10, 2016 ... a new market research report "Identity and Access Management ... & Audit, Compliance, and Governance), by Organization Size, by ... to 2020", published by MarketsandMarkets, The market is estimated ... USD 12.78 Billion by 2020, at a Compound Annual ...
(Date:3/9/2016)... March 9, 2016  Crossmatch ® , a ... solutions, today announced the addition of smart features ... multi-factor authentication platform. New contextual and application-specific ... step-up security where it,s needed most — while ... DC . --> Washington, ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... May 25, 2016 , ... The American Medical Informatics ... of the National Coordinator for Health IT (ONC) outlining a measurement approach to ... were available when and where it was needed. The organization of health informatics ...
(Date:5/24/2016)... ... May 24, 2016 , ... ... and traumatic injuries, will be accelerated by research at Worcester Polytechnic Institute (WPI) ... of wound healing and tissue regeneration. , The novel method, developed by WPI ...
(Date:5/23/2016)... ... May 23, 2016 , ... PrecisionAg® Media has released ... and Beyond. The paper outlines the key trends that are creating both opportunities ... witnessed a lot of highs and lows as the precision agriculture market has ...
(Date:5/23/2016)... ... May 23, 2016 , ... ... on molecular nanotechnology, announced the winners for the 2015 Foresight Institute Feynman Prizes. ... are given in two categories, one for experiment and the other for theory ...
Breaking Biology Technology: