Corporate Banner
Satellite Banner
Biologics & Bioprocessing
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

NIH Scientists Create New Tool for Identifying Powerful HIV Antibodies

Published: Friday, May 10, 2013
Last Updated: Friday, May 10, 2013
Bookmark and Share
It is believed that this latest advance could speed HIV vaccine research.

A team of NIH scientists has developed a new tool to identify broadly neutralizing antibodies (bNAbs) capable of preventing infection by the majority of HIV strains found around the globe, an advance that could help speed HIV vaccine research. Scientists have long studied HIV-infected individuals whose blood shows powerful neutralization activity because understanding how HIV bNAbs develop and attack the virus can yield clues for HIV vaccine design. But until now, available methods for analyzing blood samples did not easily yield specific information about the HIV bNAbs present or the parts of the virus they targeted. In addition, determining where and how HIV bNAbs bind to the virus has been a laborious process involving several complicated techniques and relatively large quantities of blood from individual donors.

The new tool lets scientists determine precisely the HIV bNAbs present in a particular blood sample by analyzing the neutralized HIV strains there. Called neutralization fingerprinting, the tool is a mathematical algorithm (a problem-solving procedure) that exploits the large body of data on HIV bNAbs generated in recent years. The neutralization fingerprint of an HIV antibody is a measurement of which virus strains it can block and with what intensity. Antibodies that target the same portion of the virus tend to have similar fingerprints.

Blood samples contain mixtures of antibodies, so the new algorithm calculates the specific types of HIV bNAbs present and the proportion of each by comparing the blood’s neutralization data with the fingerprints of known HIV bNAbs. This approach is particularly useful when other methods of determining bNAbs targets in a blood sample are not feasible, such as when just a small amount of blood is available. Neutralization fingerprinting also is significantly faster than older analytic methods. According to the researchers who developed the assay, the underlying approach could be applied to the study of human responses to other pathogens, such as influenza and hepatitis C viruses, for which scientists have much information about neutralizing antibodies.


Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,400+ scientific posters on ePosters
  • More than 3,700+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

NIH-funded Vaccine for West Nile Virus Enters Human Clinical Trials
Enrollment is expected to be completed by December 2015.
Tuesday, July 07, 2015
Douglas Lowy Named Acting Director of the National Cancer Institute
Lowy’s research includes the biology of papillomaviruses and the regulation of normal and neoplastic growth.
Tuesday, April 07, 2015
Experimental Ebola Vaccine Safe, Prompts Immune Response
Results from US government-sponsored phase 1 trial of VSV vaccine reported.
Thursday, April 02, 2015
Ebola Test Vaccines Appear Safe in Phase 2 Liberian Clinical Trial
Liberia-U.S. partnership planning Phase 3 trial and study of Ebola survivors.
Friday, March 27, 2015
Strengthening the Immune System’s Fight Against Brain Cancer
NIH-funded research suggests novel way to improve vaccine efficacy in brain tumors.
Friday, March 20, 2015
NIH-Sponsored HIV Vaccine Trial Launches In South Africa
Early-stage trial aims to build on RV144 results.
Thursday, February 19, 2015
Ebola Vaccine Trial Opens in Liberia
Study led by Liberia-NIH partnership will test two experimental vaccines.
Tuesday, February 03, 2015
NIAID/GSK Experimental Ebola Vaccine Appears Safe, Prompts Immune Response
Results from NIH Phase 1 clinical trial support accelerated development of candidate vaccine.
Friday, November 28, 2014
NIH Begins Early Human Clinical Trial of VSV Ebola Vaccine
Human testing of a second investigational Ebola vaccine candidate is under way at the National Institutes of Health’s Clinical Center in Bethesda, Maryland.
Thursday, October 23, 2014
Candidate H7N9 Avian Flu Vaccine Works Better With Adjuvant
Results of large NIH-sponsored trial demonstrate improved vaccine response when an adjuvant was used.
Wednesday, October 08, 2014
NIH Awards Seven New Vaccine Adjuvant Discovery Contracts
Total funding for these contracts reach approximately $70 million over five years.
Tuesday, October 07, 2014
NIH and FDA Win Top National Award
Award for intellectual property licensing of meningitis vaccine.
Saturday, September 27, 2014
NIH-Led Scientists Discover HIV Antibody that Binds to Novel Target on Virus
The antibody, 35O22, prevents 62 percent of known HIV strains from infecting cells in the laboratory.
Friday, September 05, 2014
NIH to Launch Human Safety Study of Ebola Vaccine Candidate
Trial is First in Series of Accelerated Safety Studies of Ebola Vaccines.
Thursday, August 28, 2014
Experimental Chikungunya Vaccine Induces Robust Antibody Response
Vaccine developed by NIH scientists performs well in early clinical trial.
Saturday, August 16, 2014
Scientific News
First Artificial Ribosome Designed
Researchers at the University of Illinois at Chicago and Northwestern University have engineered a tethered ribosome that works nearly as well as the authentic cellular component, or organelle, that produces all the proteins and enzymes within the cell.
Experimental MERS Vaccine Shows Promise in Animal Studies
A two-step regimen of experimental vaccines against Middle East respiratory syndrome (MERS) prompted immune responses in mice and rhesus macaques, report National Institutes of Health scientists who designed the vaccines.
Sweet Revenge Against Superbugs
A special type of synthetic sugar could be the latest weapon in the fight against superbugs.
Researchers Develop Vaccine that Protects Primates Against Ebola
A collaborative team from The University of Texas Medical Branch at Galveston and the National Institutes of Health have developed an inhalable vaccine that protects primates against Ebola.
Universal Flu Vaccine in the Works
A new study has demonstrated a potential strategy for developing a flu vaccine with potent, broad protection.
Immunotherapy Shows Promise for Myeloma
A strategy, which uses patients’ own immune cells, genetically engineered to target tumors, has shown significant success against multiple myeloma, a cancer of the plasma cells that is largely incurable.
Ferring Bets on Bacteriophages to Treat Inflammatory Bowel Disease
Ferring Pharmaceuticals have annoucned that it will collaborate with Intralytix in the latest phase of its early stage development programme for a bacteriophage-based therapy for inflammatory bowel disease (IBD).
A Novel Drug to FIght Malaria
An international team of scientists has announced that a new compound to fight malaria is ready for human trials.
Ebola Vaccine Trial Begins in Senegal
A clinical trial to evaluate an Ebola vaccine has begun in Dakar, Senegal, after initial research started at the Jenner Institute, Oxford University.
New Cell Structure Finding Might Lead to Novel Cancer Therapies
University of Warwick scientists in the U.K. say they have discovered a cell structure which could help researchers understand why some cancers develop.
SELECTBIO

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,400+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,700+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!