HOME >> BIOLOGY >> NEWS
How does a zebrafish grow a new tail?

If a zebrafish loses a chunk of its tail fin, it'll grow back within a week. Like lizards, newts, and frogs, a zebrafish can replace surprisingly complex body parts. A tail fin, for example, has many different types of cells and is a very intricate structure. It is the fish version of an arm or leg.

The question of how cold-blooded animals re-grow missing tails and other appendages has fascinated veterinary and medical scientists. They also wonder if people, and other warm-blooded animals that evolved from these simpler creatures, might still have untapped regenerative powers hidden in their genes.

People are constantly renewing blood components, skeletal muscles and skin. We can regenerate liver tissue and repair minor injuries to bone, muscle, the tips of our toes and fingers, and the corneas of our eyes. Finding out more about the remarkable ability of amphibians and fish to re-grow complex parts might provide the information necessary to create treatments for people whose hearts, spinal cords, eyes or arms and legs have been badly hurt.

Scientists have discovered some of the genes and cell-to-cell communication pathways that enable zebrafish to restore their tail fins.

"The ability to regenerate body parts such as those that are damaged by injury or disease," said Dr. Randall Moon, professor of pharmacology at the University of Washington (UW), an investigator of the Howard Hughes Medical Institute, and a researcher in the UW Institute for Stem Cell and Regenerative Medicine, "involves creating cells that can take any number of new roles. This can be done by re-programming cells that already have a given function or by activating resident stem cells."

Developmental biologists know that a particular kind of cell-to-cell communication, called Wnt/Beta-catenin signaling, regulates the fate of these as-yet undeveloped cells as an embryo forms. Through a cascade of signals, cells waiting for their calling learn which
'"/>

Contact: Leila Gray
leilag@u.washington.edu
206-685-0381
University of Washington
26-Dec-2006


Page: 1 2 3

Related biology news :

1. EPA selects Phylonix to screen compound library in zebrafish
2. Phylonix awarded National Science Foundation Phase II SBIR for zebrafish screening
3. Key to zebrafish heart regeneration uncovered
4. Temperature regulates circadian clock in zebrafish
5. Tiny zebrafish teaches researchers how to fight off a deadly cancer
6. Clues on cancer from a zebrafish model of melanoma
7. Glow-in-the-dark zebrafish at UH hold keys to biological clocks
8. Strawberry daiquiris -- the extra-healthy cocktail?

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: How does zebrafish grow new tail

(Date:6/29/2015)... 2015 Research and Markets( ... "Latin America Biomedical Sensors Market - Growth, Trends & ... The Latin America Biomedical Sensors market is estimated at ... over the period 2014-2020 The near future ... genetic formulation of each individual. These sensors can be ...
(Date:6/25/2015)... June 25, 2015 According ... Type (Swipe & Area), Technology, Material (Optical Prism, ... Commercial Security & Others) & Geography - Global ... the said market is expected to reach $14,500.07 ... Browse 76 market Tables and ...
(Date:6/25/2015)... , June 25, 2015  TAKE Solutions Ltd., a ... by the United States Patent and Trademark Office (USPTO) ... process leverages TAKE Solutions, Clinical Accelerators to reduce the ... (when compared to standardization without the accelerators), thus reducing ... At the heart of the patented ...
Breaking Biology News(10 mins):Latin America Biomedical Sensors Market Report 2015-2020 2Fingerprint Sensors Market Worth $14,500.07 Million by 2020 2Fingerprint Sensors Market Worth $14,500.07 Million by 2020 3Fingerprint Sensors Market Worth $14,500.07 Million by 2020 4TAKE Solutions Awarded Patent By USPTO 2
(Date:7/3/2015)... (PRWEB) , ... July 03, 2015 , ... ... highly-regarded by Fortune 500 companies and professional service industries alike-- typically known for ... make clients laugh, honor a good cause and break from their day jobs. ...
(Date:7/3/2015)... July 3, 2015 ... Open Innovation in Science", som finner sted ... sendes på nett, på  http://www.openinnovationinscience.at , og ... De to største utfordringene innen ... undersøke nye forskningsspørsmål og kompleksiteten av nåværende ...
(Date:7/2/2015)... ... ... have been used in countless labs for decades. In the past, people had to ... expected, this was a daunting and tiring process looking at endless data tables and charts. ... navigate the complex catalog structure. , Now thanks to FireflySci, scientists are throwing away those ...
(Date:7/2/2015)... 2015 Amici Procurement Migrates to ... Amici Procurement has chosen Microsoft Cloud Solution Provider ... Office 365.      (Logo: http://photos.prnewswire.com/prnh/20121126/579634) , ... companies in the bio-tech sector with a unique procurement ... cycle to help them obtain best value. Its IT ...
Breaking Biology Technology:The Alexander Group Declares Their Independence with a Bit of Levity 2Lansering av verdens første Open Innovation-program for utdanning av forskere 2Lansering av verdens første Open Innovation-program for utdanning av forskere 3New Cuvette E-Commerce Website Launched by FireflySci 2Biotech Procurement Company Moves to Office 365 with iomart 2
Cached News: