When a vertebrate encounters substances that are capable of causing it harm, a protective system known as the "immune system" comes into play. This system is a network of many different organs that work together to recognize foreign substances and...

When a vertebrate encounters substances that are capable of causing it harm, a protective system known as the immune system comes into play. This system is a network of many different organs that work together to recognize foreign substances and...

see immune...

T cells belong to a group of white blood cells known as lymphocytes, and play a central role in cell-mediated immunity. They can be distinguished from other lymphocyte types, such as B cells and NK cells by the presence of a special receptor on their...

HOT PAPER IN IMMUNOLOGY The paper: Dl. Barber et al., "Restoring function in exhausted CDS T cells during chronic viral infection," Nature, 439:682-7, 2006. (Cited in 97 papers) The finding: Rafi Ahmed at Emory Vaccine Center in Atlanta and colleagues...

High resolution and video microscopy begin to reveal molecular underpinnings of T-cell recognition In some ways, science resembles gold mining: Eager practitioners congregate around rich veins of discovery while leaving less-promising territory nearly deserted. Yet even neglected areas can produce a mother lode....

A lawsuit alleging that AT&T Inc.'s cell phone customers received inferior service after the company's wireless division was sold to Cingular Wireless can proceed as a class action, a federal appeals court ruled Friday.At issue was a clause in old Cingular contracts that forced customers...

In a disappointing setback, a promising experimental AIDS vaccine failed to work in a large international test, leading the developer to halt the study.Merck & Co. said Friday that it is ending enrollment and vaccination of volunteers in the study, which was partly funded by...