Featured Research

from universities, journals, and other organizations

Human tumor-targeting immune cells inhibited by the protein BTLA

Date:
December 28, 2009
Source:
Journal of Clinical Investigation
Summary:
Immune cells known as CD8+ T cells have important roles in protection against infectious diseases and cancer. Now, Daniel Speiser and colleagues, at the Ludwig Institute for Cancer Research, Switzerland, have determined that human CD8+ T cells that target tumors express much higher levels of an inhibitory molecule known as BTLA than human CD8+ T cells that target viruses.

Immune cells known as CD8+ T cells have important roles in protection against infectious diseases and cancer. Now, Daniel Speiser and colleagues, at the Ludwig Institute for Cancer Research, Switzerland, have determined that human CD8+ T cells that target tumors express much higher levels of an inhibitory molecule known as BTLA than human CD8+ T cells that target viruses.

Related Articles


The research appears in the Journal of Clinical Investigation.

Triggering of BTLA on these cells impaired their function. Further, persistently high levels of BTLA expression were detected on tumor-specific CD8+ T cells from melanoma patients who mounted spontaneous antitumor immune responses and after conventional peptide vaccination. More importantly, treating melanoma patients with both conventional peptide vaccination and a compound that decreased BTLA expression on tumor-specific CD8+ T cells restored the ex vivo functionality of the T cells.

The authors and, in an accompanying commentary, Chrystal Paulos and Carl June therefore suggest that it might be useful to combine approaches to inhibit BTLA-mediated T cell inhibition with conventional cancer vaccination strategies.


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 References:

  1. Laurent Derrι, Jean-Paul Rivals, Camilla Jandus, Sonia Pastor, Donata Rimoldi, Pedro Romero, Olivier Michielin, Daniel Olive and Daniel E. Speiser. BTLA mediates inhibition of human tumor-specific CD8 T cells that can be partially reversed by vaccination. Journal of Clinical Investigation, Published December 28, 2009 DOI: 10.1172/JCI40070
  2. Chrystal M. Paulos and Carl H. June. Putting the brakes on BTLA in T cell-mediated cancer immunotherapy. Journal of Clinical Investigation, 2010;120(1):76%u201380 DOI: 10.1172/JCI41811

Cite This Page:

Journal of Clinical Investigation. "Human tumor-targeting immune cells inhibited by the protein BTLA." ScienceDaily. ScienceDaily, 28 December 2009. <www.sciencedaily.com/releases/2009/12/091228171730.htm>.
Journal of Clinical Investigation. (2009, December 28). Human tumor-targeting immune cells inhibited by the protein BTLA. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2009/12/091228171730.htm
Journal of Clinical Investigation. "Human tumor-targeting immune cells inhibited by the protein BTLA." ScienceDaily. www.sciencedaily.com/releases/2009/12/091228171730.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Experimental Ebola Vaccine Shows Promise In Human Trial

Experimental Ebola Vaccine Shows Promise In Human Trial

Newsy (Nov. 27, 2014) — A recent test of a prototype Ebola vaccine generated an immune response to the disease in subjects. Video provided by Newsy
Powered by NewsLook.com
Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) — Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
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