Navigation Links
Pitt team finds molecule that regulates heart size by using zebrafish screening model
Date:7/5/2009

PITTSBURGH, July 5 Using zebrafish, researchers at the University of Pittsburgh have identified and described an enzyme inhibitor that allows them to increase the number of cardiac progenitor cells and therefore influence the size of the developing heart. The findings are described in the advance online version of Nature Chemical Biology.

The zebrafish model has powerful advantages for studying embryonic development, said senior author Michael Tsang, Ph.D., assistant professor, Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine.

"This gives us a better understanding of heart development during the embryonic stage and has implications for adult disease," he noted. "As we try to create treatments that restore normal function to damaged or diseased tissues, it will help us to know the biologic pathways and signals that formed these organs whole and healthy in the first place. This information can be gained by studying developmental biology."

Zebrafish are vertebrate animals whose transparent embryos develop rapidly, are small and easy to handle and, most importantly, grow outside of the mother. In earlier work, Dr. Tsang and his team bred a line of transgenic zebrafish with the gene for green fluorescent protein linked to a key signaling pathway of fibroblast growth factors (FGFs), a family of proteins that are essential in embryonic development.

"The transgenic zebrafish embryos allow us to actually see when a drug or compound influences FGFs because the cells glow green," Dr. Tsang said. "The embryos are like biosensors for FGF signaling, showing us what's happening in real time in living animals."

For the current paper, he and colleagues focused on a small molecule called BCI, which hyperactivated FGF signaling. They then figured out how: BCI blocked the activity of an enzyme called Dusp6, a feedback regulator that would otherwise have tamped down the enhanced FGF signal.

Knowing that, BCI could then be used as a tool to find out what effect Dusp6 inhibition would have on heart development. Zebrafish treated with BCI had a greater number of cardiac progenitor cells and, ultimately, larger hearts, Dr. Tsang said.

Unraveling the fibroblast growth factor pathway has broad implications for improving wound healing as well, Dr. Tsang said. For example, FGF2 has been used in treatment of chronic skin ulcers and following burn surgery in Japan. Thus, BCI alone or in combination with FGF2 might accelerate the healing process and improve wound repair.


'/>"/>

Contact: Anita Srikameswaran
SrikamAV@upmc.edu
412-647-3555
University of Pittsburgh Schools of the Health Sciences
Source:Eurekalert

Related biology news :

1. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
2. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
3. Study finds blocking angiogenesis signaling from inside cell may lead to serious health problems
4. Study finds Viagra increases release of key reproductive hormone
5. Survey finds elevated rates of new asthma among WTC rescue and recovery workers
6. St. Jude finds factors that accelerate resistance to targeted therapy in lymphoblastic leukemia
7. Study finds a high rate of asthma in college athletes
8. Ecologist finds dire devastation of snake species following floods of 93, 95
9. Men shed light on the mystery of human longevity, study finds
10. JILA finds flaw in model describing DNA elasticity
11. Americans remain pessimistic about the environment, Stanford-AP survey finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/15/2016)... 15, 2016 Yissum Research Development Company ... company of the Hebrew University, announced today the formation ... technology of various human biological indicators. Neteera Technologies has ... from private investors. ... detection of electromagnetic emissions from sweat ducts, enables reliable ...
(Date:3/14/2016)... , Allemagne, March 14, 2016 ... http://www.apimages.com ) - --> - Renvoi : ... - --> --> ... solutions biométriques, fournit de nouveaux lecteurs d,empreintes digitales ... LF10 de DERMALOG sera utilisé pour produire des ...
(Date:3/11/2016)... PUNE, India , March 11, 2016 ... to a new market research report "Image Recognition Market ... by Application (Marketing and Advertising), by Deployment Type (On-Premises ... Global Forecast To 2022", published by MarketsandMarkets, the global ... in 2015 to USD 29.98 Billion by 2020, at ...
Breaking Biology News(10 mins):
(Date:4/28/2016)... NEW YORK , April 28, 2016 /PRNewswire/ ... biotechnology acceleration company reports the Company,s CEO  was ... capital titled Accelerators Enter When VCs Fear To ... Life Science Leader magazine is an ... work for everything from emerging biotechs to Big ...
(Date:4/28/2016)... ... April 28, 2016 , ... As part ... top industry experts, and expanding its LATAM network and logistics capabilities. Enhancements ... to manage their clinical trial projects. , The expansion will provide unmatched clinical ...
(Date:4/27/2016)... ... April 27, 2016 , ... Shimadzu Scientific Instruments ... Spring 2016 Marijuana Business Conference and Expo. Shimadzu’s high-performance instruments enable laboratories to ... more. Expo attendees can stop by booth 1021 to learn how Shimadzu’s instruments ...
(Date:4/27/2016)... 2016 NanoStruck Technologies Inc. ... ( Frankfurt : 8NSK) gibt bekannt, ... 13. August 2015 die Genehmigung von der CNSX ... 200.000.000 Einheiten auf 400.000.000 Einheiten zu erhöhen, um ... wurden 157.900.000 Einheiten mit dem ersten Teil der ...
Breaking Biology Technology: