Arnaud Marchant, Victor Appay, Marianne van der Sande, Nicolas Dulphy, Corinne Liesnard, Michael Kidd, Steve Kaye, Olubukola Ojuola, Geraldine M.A. Gillespie, Ana L. Vargas Cuero, Vincenzo Cerundolo, Margaret Callan, Keith P.W.J. McAdam, Sarah L. Rowland-Jones, Catherine Donner, Andrew J. McMichael, Hilton Whittle
J Clin Invest.
2003;
111(11):1747–1755
doi:10.1172/JCI17470
This article Copyright © 2003, The American Society for Clinical Investigation
Abstract
|
Full text
|
PDF
I
mmunization of newborns against viral infections may be hampered by ineffective CD8+ T cell responses. To characterize the function of CD8+ T lymphocytes in early life, we studied newborns with congenital human cytomegalovirus (HCMV) infection. We demonstrate that HCMV infection in utero leads to the expansion and the differentiation of mature HCMV-specific CD8+ T cells, which have similar characteristics to those detected in adults. High frequencies of HCMV-specific CD8+ T cells were detected by ex vivo tetramer staining as early as after 28 weeks of gestation. During the acute phase of infection, these cells had an early differentiation phenotype (CD28–CD27+CD45RO+, perforinlow), and they acquired a late differentiation phenotype (CD28–CD27-CD45RA+, perforinhigh) during the course of the infection. The differentiated cells showed potent perforin-dependent cytolytic activity and produced antiviral cytokines. The finding of a mature and functional CD8+ T cell response to HCMV suggests that the machinery required to prime such responses is in place during fetal life and could be used to immunize newborns against viral pathogens.
This file is in Adobe Acrobat (PDF) format.
If you have not installed and configured the Adobe Acrobat Reader on your system.
Having trouble reading a PDF?
PDFs are designed to be printed out and read, but if you prefer to read them online, you may find it easier if you increase the view size to 125%.
Having trouble saving a PDF?
Many versions of the free Acrobat Reader do not
allow Save. You must instead save the PDF from the JCI Online page you downloaded it from. PC users:
Right-click on the Download link and choose the option that says something like "Save Link As...".
Mac users should hold the mouse button down on the link to get these same options.
Having trouble printing a PDF?
- Try printing one page at a time or to a newer printer.
- Try saving the file to disk before printing rather than opening it "on the fly." This requires that you
configure your browser to "Save" rather than "Launch Application" for the file type "application/pdf", and can
usually be done in the "Helper Applications" options.
- Make sure you are using the latest version of Adobe's Acrobat Reader.
