Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
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

Join For Free

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 3,300+ scientific posters on ePosters
  • More Than 4,800+ 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

Vaccine Strategy Targets Multiple Influenza Viruses
Scientists have identified vaccine-induced antibodies that can neutralize strains of influenza virus that infect humans.
Monday, July 25, 2016
Connectome Map More Than Doubles Human Cortex’s Known Regions
Researchers at NIH have developed software that automatically detects the “fingerprint” of each of these areas in an individual’s brain scans.
Saturday, July 23, 2016
Uncovering a New Principle in Chemotherapy Resistance in Breast Cancer
The NIH study has revealed an entirely unexpected process for acquiring drug resistance that bypasses the need to re-establish DNA damage repair in breast cancers that have mutant BRCA1 or BRCA2 genes.
Thursday, July 21, 2016
Brain Circuits Helps People Cope With Stress
Researchers at NIH have identified brain patterns in humans that appear to underlie “resilient coping,” to stress that help some people handle stressful situations better than others.
Wednesday, July 20, 2016
NIH Investment Into HIV Research Expands
Funding has been awarded to six research teams to lead collaborative investigations worldwide toward an HIV cure.
Thursday, July 14, 2016
Treatment Advancement for Gaucher and Parkinson's Diseases
NIH scientists identify molecule that may act as a possible treatment of neurological diseases.
Wednesday, July 13, 2016
Use it or Lose it: Visual Activity Regenerates Links Between Eye, Brain
The mouse study is first to show visual stimulation helps re-wire visual system and partially restores sight.
Tuesday, July 12, 2016
NIH Funds Million-Person Medicine Study
NIH announces $55million in awards to build foundations for ambitious Cohort Program that aims to engage 1 million participants in lifestyle, environments and genetics research.
Friday, July 08, 2016
Largest-Ever Study of Breast Cancer Genetics in Black Women
The study will identify genetic factors that may underlie breast cancer disparities.
Thursday, July 07, 2016
NIH-Funded Center to Study Inefficiencies in Clinical Trials
Researchers at the Duke Clinical Research Institute (DCRI) and Vanderbilt University Medical Center (VUMC) have received a major federal grant to study how multisite clinical trials of new drugs and therapies in children and adults can be conducted more rapidly and efficiently.
Thursday, July 07, 2016
NIH Funds Zika Virus Study Involving U.S. Olympic Team
Researchers will monitor potential Zika virus exposure among a subset of athletes traveling to Brazil.
Wednesday, July 06, 2016
PREVAIL Treatment Trial for Men with Persistent Ebola Viral RNA
The six-month study will enroll 60 to 120 EVD survivors.
Wednesday, July 06, 2016
Implementation Science Approaches to Reduce Mother-to-Child HIV Transmission
The NIH study will investigate best practices to ease major disease burden in Sub-Saharan Africa.
Friday, July 01, 2016
Significant Expansion Of Data Available In The Genomic Data Commons
Cancer genomic profile information from 18,000 adult cancer patients will be added to the database.
Wednesday, June 29, 2016
Some Women With PCOS May Have Adrenal Disorder
Researchers at NIH have found that a subgroup of women with PCOS, a leading cause of infertility, may produce excess adrenal hormones.
Tuesday, June 28, 2016
Scientific News
Liquid Biopsies: Miracle Diagnostic or Next New Fad?
Thanks to the development of highly specific gene-amplification and sequencing technologies liquid biopsies access more biomarkers relevant to more cancers than ever before.
Core-Shell Columns in HPLC: Food Analysis Applications
Explore the most recent applications of core-shell columns in food analysis.
Review of the Analysis of Haemoglobin A1c for Diabetes Diagnostics
This paper aims to clarify methods, units, quality requirements, reference and cutoff limits for hemoglobin A1c (HbA1c) and ratio of blood glucose/HbA1c on the basis of the results from Finnish quality control surveys by comparing them to the literature.
Colon Cancer Blocked in Mice
Case Western Reserve University Researchers block common type of colon cancer tumour in mice, laying groundwork for human clinical trial.
New Centre Offers Ultra-Speed Protein Analysis
UW-Madison researchers to establish development centre for next-gen protein measurement technologies.
Disrupting Tumour-Promotion in Humans
Researchers have modified an existing protein to represses a specific cancer-promoting ‘message’ within cells.
Protein Nanocages Could Improve Drug Design and Delivery
HHMI scientists have designed and built 10 large protein icosahedra that are similar to viral capsids that carry viral DNA.
Vaccine Strategy Targets Multiple Influenza Viruses
Scientists have identified vaccine-induced antibodies that can neutralize strains of influenza virus that infect humans.
Connectome Map More Than Doubles Human Cortex’s Known Regions
Researchers at NIH have developed software that automatically detects the “fingerprint” of each of these areas in an individual’s brain scans.
Discovered Through ‘Big Data’ Analysis
Researchers at the SBP have identified over 100 new genetic regions that affect the immune response to cancer.
Scroll Up
Scroll Down
Skyscraper Banner

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
3,300+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,800+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!