Virus Genes

, Volume 27, Issue 3, pp 237–247

Latency-Associated Nuclear Antigen of Kaposi's Sarcoma-Associated Herpesvirus Interacts with Human Myeloid Cell Nuclear Differentiation Antigen Induced by Interferon α

  • Masaya Fukushi
  • Masaya Higuchi
  • Masayasu Oie
  • Takafumi Tetsuka
  • Francis Kasolo
  • Kouji Ichiyama
  • Naoki Yamamoto
  • Harutaka Katano
  • Tetsutaro Sata
  • Masahiro Fujii
Article

DOI: 10.1023/A:1026391715071

Cite this article as:
Fukushi, M., Higuchi, M., Oie, M. et al. Virus Genes (2003) 27: 237. doi:10.1023/A:1026391715071

Abstract

Kaposi's sarcoma-associated herpesvirus (KSHV)/human herpes virus type 8 (HHV-8) is tightly linked to the development of Kaposi's sarcoma, primary effusion lymphoma (PEL) and some cases of multicentric Castleman's disease. Latency-associated nuclear antigen (LANA) is one of a limited number of KSHV genes consistently expressed in these diseases as well as in KSHV-infected cell lines derived from PEL, and has been shown to play crucial role in persistence of KSHV genomes in the infected cells. In this study, we explored the cellular factors that interact with LANA using yeast two-hybrid screening, and isolated a part of gene encoding human myeloid cell nuclear differentiation antigen (MNDA). MNDA is a hematopoietic interferon-inducible nuclear proteins with a HIN-200 family member with conserved 200-amino acid repeats. Immunoprecipitation assay revealed that LANA interacted with MNDA in a mammalian embryonic kidney cell line. MNDA transcript was undetectable in three PEL cell lines by reverse-transcription polymerase chain reaction, but it was induced by interferon α (IFNα). Moreover, LANA and MNDA were co-localized in the nuclei of MNDA-expressing PEL cells. Our results suggest that LANA interacts with MNDA in KSHV-infected cells exposed to IFNα. Such interaction may modulate IFN-mediated host defense activities.

HIN-200 family geneshuman myeloid cell nuclear differentiation antigen (MNDA)interferon (IFN)Kaposi's sarcoma-associated herpesvirus (KSHV)/human herpesvirus 8 (HHV-8)latency-associated nuclear antigen (LANA)yeast two-hybrid screening

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Masaya Fukushi
    • 1
  • Masaya Higuchi
    • 1
  • Masayasu Oie
    • 1
  • Takafumi Tetsuka
    • 1
    • 2
  • Francis Kasolo
    • 3
  • Kouji Ichiyama
    • 3
    • 4
  • Naoki Yamamoto
    • 4
  • Harutaka Katano
    • 5
  • Tetsutaro Sata
    • 5
  • Masahiro Fujii
    • 1
  1. 1.Division of VirologyNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
  2. 2.Division of Clinical Nephrology, Rheumatology, Respiratory Medicine and Infection Control and PreventionNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
  3. 3.Virology Laboratory, Department Pathology and MicrobiologyUniversity Teaching HospitalLusakaZambia
  4. 4.Department of Molecular Virology, Division of Infection and Bioresponse Graduate SchoolTokyo Medical and Dental UniversityTokyoJapan
  5. 5.Department of PathologyNational Institute of Infectious DiseasesTokyoJapan