Featured Research

from universities, journals, and other organizations

Vaccine design: Three is better than two when boosting vaccine effectiveness

Date:
February 1, 2010
Source:
Journal of Clinical Investigation
Summary:
To boost vaccine effectiveness molecules known as adjuvants are often included in the vaccine formulation. Adjuvants are most commonly used to increase the magnitude of vaccine-induced immune responses, specifically T cell immune responses. However, the quality of a T cell response can be more important than its quantity, and a team of researchers has now identified a way to increase the quality but not the quantity of a vaccine-induced T cell response in mice.

To boost vaccine effectiveness molecules known as adjuvants are often included in the vaccine formulation. Adjuvants are most commonly used to increase the magnitude of vaccine-induced immune responses, specifically T cell immune responses. However, the quality of a T cell response can be more important than its quantity, and a team of researchers, at the National Institutes of Health, has now identified a way to increase the quality but not the quantity of a vaccine-induced T cell response in mice.

TLRs are a family of microorganism-sensing proteins that represent potential new vaccine adjuvants, as stimulating certain pairs of TLRs has a synergistic effect on the magnitude of immune responses in preclinical models. The team, led by Jay Berzofsky, found that when mice were immunized with an HIV peptide together with three molecules that bound different TLRs they mounted a more effective protective T cell response than did mice immunized with the HIV peptide together with any two of the ligands.

Further analysis determined that the increased protection correlated with T cell responses of enhanced quality, rather than enhanced quantity.

The authors therefore suggest that select TLR ligand combinations could be used to separately manipulate the quality and quantity of vaccine-induced T cell responses.



Story Source:

The above story is based on materials provided by Journal of Clinical Investigation. Note: Materials may be edited for content and length.


Journal Reference:

  1. Zhu et al. Using 3 TLR ligands as a combination adjuvant induces qualitative changes in T cell responses needed for antiviral protection in mice. Journal of Clinical Investigation, 2010; DOI: 10.1172/JCI39293

Cite This Page:

Journal of Clinical Investigation. "Vaccine design: Three is better than two when boosting vaccine effectiveness." ScienceDaily. ScienceDaily, 1 February 2010. <www.sciencedaily.com/releases/2010/01/100125213238.htm>.
Journal of Clinical Investigation. (2010, February 1). Vaccine design: Three is better than two when boosting vaccine effectiveness. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2010/01/100125213238.htm
Journal of Clinical Investigation. "Vaccine design: Three is better than two when boosting vaccine effectiveness." ScienceDaily. www.sciencedaily.com/releases/2010/01/100125213238.htm (accessed July 29, 2014).

Share This




More Health & Medicine News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Two Americans Contract Ebola in Liberia

Two Americans Contract Ebola in Liberia

Reuters - US Online Video (July 28, 2014) Two American aid workers in Liberia test positive for Ebola while working to combat the deadliest outbreak of the virus ever. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
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:
from the past week

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