Corporate Banner
Satellite Banner
Immunology
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

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

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
Drug Might Help Treat Sepsis
A DNA enzyme called Top1 plays a key role in turning on genes that cause inflammation in mouse and human cells in response to pathogens. A drug blocking this enzyme rescued mice from lethal inflammatory responses, suggesting a potential treatment for sepsis.
Wednesday, May 18, 2016
Large-scale HIV Vaccine Trial to Launch in South Africa
NIH-funded study will test safety, efficacy of vaccine regimen.
Wednesday, May 18, 2016
New HIV Vaccine Target Discovered
NIH-Led team have discovered a new vaccine target site on HIV.
Tuesday, May 17, 2016
Finding Factors That Protect Against Flu
A clinical trial examining the body’s response to seasonal flu suggests new approaches for evaluating the effectiveness of seasonal flu vaccines.
Wednesday, April 27, 2016
Factors Influencing Influenza Vaccine Effectiveness Uncovered
The long-held approach to predicting seasonal influenza vaccine effectiveness may need to be revisited, new research suggests.
Thursday, April 21, 2016
Study Finds Factors That May Influence Influenza Vaccine Effectiveness
Researchers at NIH have suggested that the long-held approach to predicting seasonal influenza vaccine effectiveness may need to be revisited.
Wednesday, April 20, 2016
Submissions Open for the Cancer Moonshot Program
NCI opens online platform to submit ideas about research for Cancer Moonshot.
Tuesday, April 19, 2016
NIH Awards Grants to Explore Vaccine Adjuvants
NIH awards six grants to explore how combination adjuvants improve vaccines.
Wednesday, April 06, 2016
Experimental Vaccine Protects Against Dengue Virus
An experimental dengue vaccine protected all the volunteers who received it from infection with a live dengue virus.
Wednesday, March 30, 2016
Experimental Ebola Antibody Protects Monkeys
Antibody isolated from Ebola survivor can advance to clinical trials.
Friday, February 26, 2016
Dengue Vaccine Enters Phase 3 Trial
Investigational vaccine to prevent ‘breakbone fever’ developed at NIH.
Friday, January 15, 2016
In Uveitis, Bacteria in Gut May Instruct Immune Cells to Attack the Eye
NIH scientists propose novel mechanism to explain autoimmune uveitis.
Wednesday, August 19, 2015
Novel Mechanism to Explain Autoimmune Uveitis Proposed
A new study on mice suggests that bacteria in the gut may provide a kind of training ground for immune cells to attack the eye.
Wednesday, August 19, 2015
HIV Control Through Treatment Durably Prevents Heterosexual Transmission of Virus
NIH-funded trial proves suppressive antiretroviral therapy for HIV-infected people effective in protecting uninfected partners.
Tuesday, July 21, 2015
Scientific News
Gut Bacteria Older than Human Species
Some bacteria have lived in the human gut since before we were human, suggesting evolution could have a larger role inhuman bacterial makeup.
Evidence of Mosquito Transmitting Zika
A direct link between the Yellow fever mosquito and Zika transmission has been found following investigation into selective mosquito control.
Antibody-Based Drug for Multiple Sclerosis
New antibody-based drug paves the way for new strategies for controlling and treating multiple sclerosis.
Three-Drug Combinations Counter Antibiotic Resistance
Research shows that combinations of three different antibiotics can treat resistant bacteria, even if they are ineffective independently.
Mapping Zika’s Routes to Developing Fetus
UC researchers show how Zika virus travels from a pregnant woman to her fetus, and also identified a drug that could stop it.
Treating HIV with Cancer-Fighting Gene Shows Promise
A type of gene immunotherapy that has shown promising results against cancer could also be used against HIV.
Protein Teams Activate T-Cells
Caltech researchers have discovered T-cell genetic switching is controlled by four proteins acting in a multi-tiered fashion.
'Antigen-Presenting Cell' Defends Against Cancer
Through advanced imaging, researchers have identified cells that encourages increases in immune system cancer defences.
Zika Epidemic Likely to End Within Three Years
A team of scientists has predicted that the current Zika epidemic is likely to end within three years because there will be too few people left to infect.
Go-Between Immune Cell is Key to Priming the Body’s Fight Against Cancer
‘Antigen-presenting cell’ activates T cells by alerting them to the presence of tumors.
Skyscraper Banner

SELECTBIO Market Reports
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!