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Exploring Kaposi's sarcoma-associated herpesvirus latent genes' role in viral lymphomagenesis using transgenic mice

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Kaposi's sarcoma-associated herpesvirus (KSHV) is a human lymphotropic gammaherpesvirus and associated with Kaposi sarcoma as well as two B cell lymphoproliferative disorders: primary effusion lymphoma (PEL) and multicentric Castleman disease. We reported that the KSHV latency-associated nuclear antigen (LANA) transgenic mice developed splenic follicular hyperplasia and showed increased germinal center formation. Here we report that the KSHV LANA-induced B cell activation is CD19 dependent and LANA restores the marginal zone defect in CD19-/- mice. To test KSHV latent genes' role in viral lymphomagenesis, we generated mice expressing all KSHV latency-associated genes. All of the transgenic mice induced mature B cell activation. Further characterization of the mice expressing all KSHV latency-associated genes is currently underway.

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Correspondence to S-H Sin.

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Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution 2.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Sarcoma
  • Transgenic Mouse
  • Cell Activation
  • Latent Gene
  • Germinal Center