Journal
JOURNAL OF VIROLOGY
Volume 84, Issue 20, Pages 10653-10660Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.00848-10
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Funding
- National Institutes of Health [CA109232]
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Gammaherpesviruses, including Kaposi sarcoma-associated herpesvirus (KSHV), establish latency in B cells. We hypothesized that the KSHV latency-associated nuclear antigen (LANA/orf73) provides a selective advantage to infected B cells by driving proliferation in response to antigen. To test this, we used LANA B-cell transgenic mice. Eight days after immunization with antigen without adjuvant, LANA mice had significantly more activated germinal center (GC) B cells (CD19(+) PNA(+) CD71(+)) than controls. This was dependent upon B-cell receptor since LANA did not restore the GC defect of CD19 knockout mice. However, LANA was able to restore the marginal zone defect in CD19 knockout mice.
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