Navigation Links
New agent strikes at respiratory syncytial virus replication
Date:5/5/2008

GALVESTON, Texas University of Texas Medical Branch at Galveston researchers have achieved promising results with a potential new weapon against respiratory syncytial virus, the most common cause of infant hospitalization in the United States.

In an effort to find an effective antiviral therapy for RSV, the scientists tested two types of complex, custom-designed molecule to interfere with the genetic machinery that RSV uses to replicate, or copy itself, within cells. Both of the so-called morpholino oligomers, created by Oregon-based AVI BioPharma, penetrated cultured human airway cells easily and produced only minimal toxicity. One of the two, designated AUG-2, significantly reduced RSV replication in both cell culture and mouse experiments.

Viral replication is one of the major pathogenetic processes of RSV, and we badly need a specific antiviral therapy, said UTMB Dr. Roberto Garofalo, senior author of a paper on the study to be published in the June issue of Molecular Therapy and now available in the Advance Online Publication section of the journals website. That's what an agent like this morpholino could give us.

RSV infects almost all children by age two, but normally causes only a cold-like upper respiratory infection. In some babies, however, it spreads to the lungs, where the inflammation it generates causes coughing, wheezing and extreme difficulty in breathing, a life-threatening clinical syndrome known as bronchiolitis.

Recent research by Garofalo and other investigators suggests that two key factors drive RSV bronchiolitis: an inflammatory overreaction by the cells that line the airways of the lungs, and a failure to respond to RSV by T lymphocytes (also known as T cells), immune system cells that ordinarily act to control viral infections.

Because a dangerous inflammatory response occurs so soon after RSV begins replicating in the lungs, Garofalo said, antiviral therapy by itself is unlikely to be sufficient to treat severe RSV infection in infants. But it could be a critical part of a combination therapy that also included drugs to reduce RSV-induced lung inflammation and boost T-cell response.

The virus continues to replicate for days in the lungs of infected infants, and it induces inflammation as long as it replicates, Garofalo said. So stopping viral replication would be a very important part of any therapeutic strategy for RSV.


'/>"/>
Contact: Jim Kelly
jpkelly@utmb.edu
409-772-8791
University of Texas Medical Branch at Galveston
Source:Eurekalert

Related medicine news :

1. Medical Futures signs North American licensing rights to New Biologic agent for Ulcerative Colitis
2. China Medical Technologies Completed the Development of Prostate Cancer FISH Reagent
3. New research shows benefits of ultrasound contrast agents outweigh potential risk to heart patients
4. Peter Burg Appointed as Co-Chair of the Plaintiffs Steering Committee and the Executive Committee for the Gadolinium-Based Contrast Agents Product Liability Multi-District Litigation
5. FluoroPharma Inc. Expands Technology Platform to Include Agents for Alzheimers Disease (AD)
6. NSAIDs: Painkillers, inflammation inhibitors, anti-cancer drugs and new de-methylating agents
7. China Medical Technologies Receives CE Mark for Two ECLIA Analyzers and 15 Reagents
8. Sagent Pharmaceuticals Launches Ciprofloxacin Injection, USP, 5% Dextrose Premix Bag
9. IUPUI scientists report first 3-D view of anti-cancer agent
10. Cardinal Health, GE Healthcare Broaden Relationship to Offer Greater Access to Myoview(TM) Imaging Agent
11. Parker Waichman Alonso LLP Files Suit Against General Electric Company on Behalf of a Man Who Developed Nephrogenic Systemic Fibrosis (NSF) from Contrast Agent Omniscan
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/9/2016)... ... ... "I have gout, and I wanted to treat it naturally," said an ... relieve gout and pain caused by varicose veins. I drank it every morning for ... what VA doctors called the worst sinusitis case they'd seen and relieved gas, stress ...
(Date:12/9/2016)... ... December 09, 2016 , ... Sober College, the ... the grand opening of the Sober College Robert Pfeifer Memorial Learning Center at ... 2-3, and was attended by an overwhelming amount of alumni, family, colleagues and ...
(Date:12/9/2016)... ... December 09, 2016 , ... Mediaplanet today announces distribution of the latest edition ... to sign up as an organ donor for the 123,000 people in the United ... donor can save up to 8 saves through organ donation and enhance many others ...
(Date:12/9/2016)... (PRWEB) , ... December 09, 2016 , ... ... whiteboard display solutions, proudly announced today that a new solution for Emergency Departments ... fit in the tight space in Emergency Department examination rooms, and with a ...
(Date:12/9/2016)... ... December 09, 2016 , ... The ... Cable Network (PCN) during the summer of 2016. The program was made possible ... the United States Department of Health and Human Services Administration. The broadcast, ...
Breaking Medicine News(10 mins):
(Date:12/9/2016)... Mitsubishi Tanabe Pharma Corporation (Head Office: ... Dr. Masayuki Mitsuka ) has presented data that ... intravenously in 10-14 day cycles for 48 weeks experienced ... Functional Rating Scale-Revised (ALSFRS-R). The data were presented at ... Dublin, Ireland . In ...
(Date:12/9/2016)... , Dec 9, 2016 Research and Markets ... 2016-2020" report to their offering. ... The global travel vaccines market to grow ... The report covers the present scenario and the growth prospects of ... size, the report considers the revenue generated from the sales of ...
(Date:12/9/2016)...  Forge Therapeutics, Inc. today announced a strategic ... TecDAX, ISIN: DE0005664809) to advance its novel Gram-negative ... bacterial infections including those caused by drug resistant ... antibacterial target for more than the past 15 ... points has hampered its progress. Forge has been ...
Breaking Medicine Technology: