Archives of Virology

, Volume 164, Issue 1, pp 91–104 | Cite as

Kaposi sarcoma-associated herpes virus (KSHV) latent protein LANA modulates cellular genes associated with epithelial-to-mesenchymal transition

  • Nivedita Gaur
  • Tanvi Tikla
  • Rajeev KaulEmail author
Original Article


Kaposi’s sarcoma-associated herpes virus (KSHV) is a gammaherpesvirus associated with Kaposi’s sarcoma and various lymphoproliferative diseases. Epithelial-to-mesenchymal transition (EMT) is an important step in the metastasis of cancer cells. Previous studies have shown an important role for EMT markers in B-cell malignancies. In the present study, we investigated the role of the KSHV latent protein LANA in the progression of EMT. Our data suggest that expression of LANA results in an increase in the migration and invasion potential of cancer cells, which is concurrent with modulation of transcriptional regulation and protein expression of several cellular genes associated with EMT. LANA expression results in upregulation of the cellular intermediate filament protein vimentin and transcription factor TCF8/ZEB1 and downregulation of tight junction protein ZO1 and adhesion protein E-cadherin. LANA co-localizes with TCF8/ZEB1, a major contributor in EMT, further suggesting an important role for LANA in epithelial-to-mesenchymal transition of KSHV-infected cancer cells.



This work was supported by grants from the Department of Biotechnology of the Government of India (BT/PR15109/GBD/27/320/2011), an MRP Grant from UGC (FN-41-1144/2012), an R&D Grant from the University of Delhi, and a PURSE Grant from DST. NG is a project fellow funded by UGC.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.


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Authors and Affiliations

  1. 1.Department of MicrobiologyUniversity of DelhiNew DelhiIndia
  2. 2.Hannover Medical SchoolHannoverGermany

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