Featured Research

from universities, journals, and other organizations

Universal treatment for all strains of influenza within sight

Date:
June 4, 2010
Source:
The Mount Sinai Hospital / Mount Sinai School of Medicine
Summary:
Researchers have discovered a novel component of the influenza virus that may be the key to disabling the virus's ability to replicate itself and to developing a universal anti-viral treatment.

Researchers at Mount Sinai School of Medicine have discovered a novel component of the influenza virus that may be the key to disabling the virus's ability to replicate itself and to developing a universal anti-viral treatment. The findings were published June 1 online in Proceedings of the National Academy of Sciences.

The influenza A virus is encoded by eight individual single-stranded segments of RNA. Each segment must serve as the material for both making protein and new segments, processes called transcription and replication. As each strand must perform both functions, it is imperative that the virus prioritize these processes, starting with transcription and then switching to replication.

Mount Sinai researchers have, for the first time, identified a small-viral RNA (svRNA), derived from the virus, that is integral to the switch from transcription to replication. Inhibiting svRNA from making this switch would stymie replication and thus slow or halt the spread of the virus. Because segment ends and replication strategies used for influenza B and C are similar to those of influenza A, this discovery can lead to a universal treatment for people suffering from the disease. It would also be effective against the H1N1 swine flu virus.

"The implications of this study are very exciting," said Benjamin tenOever, PhD, Assistant Professor of Microbiology at Mount Sinai School of Medicine and corresponding author of the study. "While each segment encodes different viral products, the svRNAs remain consistent, both between segments and across viral strains. If we can block the availability of svRNA we can inhibit the switch to replication, thereby stopping viral spread. As an added bonus, if the virus remains stuck in transcription, it will continue to produce proteins, ultimately strengthening the antibody response."

The small RNA component was originally identified through a process called deep sequencing. This revolutionary new technique allows scientists to obtain millions of small RNAs from cells in a completely unbiased fashion. The technique was applied to lung cells infected with influenza A virus and ultimately led to the discovery of the first small RNA component ever identified from this family of viruses.

"Questions remain about exactly how the svRNAs function," said Dr. tenOever. "We're also hoping to engineer a means of delivering RNA-based antagonists into the body's system as a means of inhibiting svRNA function. We're still a few years off from solving the entire puzzle. However, by finding this one piece, a universal treatment for all strains of influenza is within reach of becoming a reality."


Story Source:

The above story is based on materials provided by The Mount Sinai Hospital / Mount Sinai School of Medicine. Note: Materials may be edited for content and length.


Journal Reference:

  1. F. De Angelis, J. K. Lee, J. D. O'Connell, L. J. W. Miercke, K. H. Verschueren, V. Srinivasan, C. Bauvois, C. Govaerts, R. A. Robbins, J.-M. Ruysschaert, R. M. Stroud, G. Vandenbussche. Metal-induced conformational changes in ZneB suggest an active role of membrane fusion proteins in efflux resistance systems. Proceedings of the National Academy of Sciences, 2010; 107 (24): 11038 DOI: 10.1073/pnas.1003908107

Cite This Page:

The Mount Sinai Hospital / Mount Sinai School of Medicine. "Universal treatment for all strains of influenza within sight." ScienceDaily. ScienceDaily, 4 June 2010. <www.sciencedaily.com/releases/2010/06/100603132502.htm>.
The Mount Sinai Hospital / Mount Sinai School of Medicine. (2010, June 4). Universal treatment for all strains of influenza within sight. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2010/06/100603132502.htm
The Mount Sinai Hospital / Mount Sinai School of Medicine. "Universal treatment for all strains of influenza within sight." ScienceDaily. www.sciencedaily.com/releases/2010/06/100603132502.htm (accessed October 23, 2014).

Share This



More Health & Medicine News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
Powered by NewsLook.com
U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

U.S. Issues Ebola Travel Restrictions, Are Visa Bans Next?

Newsy (Oct. 22, 2014) Now that the U.S. is restricting travel from West Africa, some are dropping questions about a travel ban and instead asking about visa bans. Video provided by Newsy
Powered by NewsLook.com
US to Track Everyone Coming from Ebola Nations

US to Track Everyone Coming from Ebola Nations

AP (Oct. 22, 2014) Stepping up their vigilance against Ebola, federal authorities said Wednesday that everyone traveling into the US from Ebola-stricken nations will be monitored for symptoms for 21 days. (Oct. 22) Video provided by AP
Powered by NewsLook.com
Doctors Help Paralysed Man Walk Again, Patient in Disbelief

Doctors Help Paralysed Man Walk Again, Patient in Disbelief

AFP (Oct. 22, 2014) Polish doctors describe how they helped a paralysed man walk again, with the patient in disbelief at the return of sensation to his legs. Duration: 1:04 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins