Navigation Links
Protein that provides innate defense against HIV could lead to new treatments
Date:5/25/2008

By identifying a protein that restricts the release of HIV-1 virus from human cells, scientists believe they may be closer to identifying new approaches to treatment. The research is published in the advance online edition of Nature Medicine.

Scientists have known that most human cells contain a factor that regulates the release of virus particles, but until now they have been uncertain about the factor's identity. Now a research team from Emory University School of Medicine, Vanderbilt University School of Medicine, and Mayo Medical School has identified CAML (calcium-modulating cyclophilin ligand) as the cellular protein that inhibits the release of HIV particles.

CAML works by inhibiting a very late step in the virus lifecycle, leading to the retention of HIV particles on the membrane of the cell. The virus has developed a means of counteracting CAML, through the action of the viral Vpu protein. When Vpu is absent, HIV particles don't detach from the plasma membrane and instead accumulate by a protein tether at the cell surface.

When the research team depleted CAML in human cells in the laboratory, they found that Vpu was no longer required for the efficient exit of HIV-1 particles from the cell. When they expressed CAML in cell types that normally allow particles to exit freely, the particles remained attached to the cell surface.

"This research is important because it identifies CAML as an innate defense mechanism against HIV," says senior author Paul Spearman, professor of pediatrics (infectious diseases) at Emory University School of Medicine. "We are continuing to work on the mechanism that Vpu uses to counteract CAML and on defining exactly how CAML leads to virus particle retention on the infected cell membrane. We hope this will lead us to new treatments."


'/>"/>

Contact: Holly Korschun
hkorsch@emory.edu
404-727-3990
Emory University
Source:Eurekalert

Page: 1

Related medicine news :

1. Draining away brains toxic protein to stop Alzheimers
2. Penn study finds pro-death proteins required to regulate healthy immune function
3. New prion protein discovered by Canadian scientists may offer insight into mad cow disease
4. Emory researchers identify signaling protein for multiple myeloma
5. Human C-reactive protein regulates myeloma tumor cell growth and survival
6. Lowering Blood Protein Wont Help Kidney Patients
7. Blood protein detects lung cancer, even at earliest stage
8. Natural Protein Could Help Spot, Treat Liver Cancer
9. Heat shock proteins are co-opted for cancer
10. How adhesive protein causes malaria
11. Loss of gene leads to protein splicing and buildup of toxic proteins in neurons
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/6/2016)... (PRWEB) , ... May 06, 2016 , ... Tijuana Bariatrics ... which the practice operates, is now dedicated solely to bariatrics. , This means that ... ever before. The expansion of the fourth floor improves the practice’s ability to treat ...
(Date:5/6/2016)... ... ... associated with Mother’s Day is mixed with worry and fear for new mothers those whose ... For the first time ever, the March of Dimes and Random Acts ... beside a crib surrounded by lifesaving equipment or peering through a glass window at a ...
(Date:5/6/2016)... Jupiter, FL (PRWEB) , ... May 06, 2016 ... ... it will feature AsedaSciences® in an upcoming episode, airing third quarter 2016, via ... with the vision of becoming a leader in optimized drug discovery through innovative ...
(Date:5/6/2016)... ... 06, 2016 , ... From the Speaker Podium to the Exhibit Floor at ... insights on managing Customers Engagement at SpeechTek 2016 Event, taking place May 23-25 at ... a Presentation on “5 Customer Engagement Strategies to improve Customer Satisfaction in ...
(Date:5/6/2016)... ... May 06, 2016 , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, ... he has found in the Bible about helping to stop cancer. Yisrayl says there are ... his hope that the health and science industries will pay close attention and take action. ...
Breaking Medicine News(10 mins):
(Date:5/4/2016)... May 4, 2016 ... the  "Global Actinic Keratosis Market and Competitive ... offering.       (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO ... and Competitive Landscape Highlights 2016, provides comprehensive ... Keratosis epidemiology, Actinic Keratosis market valuations and ...
(Date:5/3/2016)... 3, 2016 BioNovus Innovations LLC and ... Advancing Medical Innovation (IAMI) today announced a new ... and medical devices. An agreement between ... to license, develop and commercialize medical innovations advanced ... "This partnership represents a significant advance in our ...
(Date:5/3/2016)... 3, 2016  As a teenager, an active and ... which damaged his heart. He continued enjoying sports and ... 2013, Shepherd,s heart was giving out and he was ... 20, 2013, the Mesa, Arizona ... Like a heart transplant, the SynCardia TAH-t is the ...
Breaking Medicine Technology: