Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Editor

Personal info

View

About

Terms

Javascript disabled

Please enable Javascript support in your browser to use this application.

Instructions on how to enable JavaScript on different browsers can be found here: http://www.google.com/support/bin/answer.py?answer=23852.

[edit this page]

van Leeuwen, E.M. et al.

van Leeuwen, Remmerswaal, Vossen, Rowshani, Wertheim-van Dillen, van Lier, ten Berge,

Emergence of a CD4+CD28- granzyme B+, cytomegalovirus-specific T cell subset after recovery of primary cytomegalovirus infection.

Cytotoxic CD4(+)CD28(-) T cells form a rare subset in human peripheral blood. The presence of CD4(+)CD28(-) cells has been associated with chronic viral infections, but how these particular cells are generated is unknown. In this study, we show that in primary CMV infections, CD4(+)CD28(-) T cells emerge just after cessation of the viral load, indicating that infection with CMV triggers the formation of CD4(+)CD28(-) T cells. In line with this, we found these cells only in CMV-infected persons. CD4(+)CD28(-) cells had an Ag-primed phenotype and expressed the cytolytic molecules granzyme B and perforin. Importantly, CD4(+)CD28(-) cells were to a large extent CMV-specific because proliferation was only induced by CMV-Ag, but not by recall Ags such as purified protein derivative or tetanus toxoid. CD4(+)CD28(-) cells only produced IFN-gamma after stimulation with CMV-Ag, whereas CD4(+)CD28(+) cells also produced IFN-gamma in response to varicella-zoster virus and purified protein derivative. Thus, CD4(+)CD28(-) T cells emerge as a consequence of CMV infection.[1]

References

Emergence of a CD4+CD28- granzyme B+, cytomegalovirus-specific T cell subset after recovery of primary cytomegalovirus infection. van Leeuwen, E.M., Remmerswaal, E.B., Vossen, M.T., Rowshani, A.T., Wertheim-van Dillen, P.M., van Lier, R.A., ten Berge, I.J. J. Immunol. (2004) [Pubmed]

Annotations and hyperlinks in this abstract are from individual authors of WikiGenes or automatically generated by the WikiGenes Data Mining Engine. The abstract is from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.About WikiGenes Open Access Licence Privacy Policy Terms of Use apsburg

The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.