Mediators of Inflammation (Jan 2006)

Modification of Cɛ mRNA Expression by EBV-Encoded Latent Membrane Protein 1

  • Kazuhiko Hanashiro,
  • Shigeto Ohta,
  • Masanori Sunagawa,
  • Mariko Nakamura,
  • Mikio Suzuki,
  • Tadayoshi Kosugi

DOI
https://doi.org/10.1155/mi/2006/68069
Journal volume & issue
Vol. 2006

Abstract

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To evaluate the effect of expression of latent membrane protein (LMP) 1 encoded by Epstein-Barr virus (EBV) on Cɛ mRNA expression, mRNA levels were examined by RT-PCR or Northern blot analysis upon transient transfection of LMP1 in the splenocytes derived from Brown-Norway rats with or without immunization with 2,4-dinitrophenyl-conjugated Ascaris suum antigen. Splenocytes were transfected with LMP1 expression vector, pSG5-LMP1, using lipofection method. Cɛ mRNA levels were considerably increased by transfection with pSG5-LMP1 in the splenocytes derived from the nonimmunized rats; however, Cɛ mRNA levels were decreased in the splenocytes derived from the immunized rats. Cɛ mRNA expression in IgE-producing cells are modulated by LMP1, which might depend on the differentiation status of B cells upon exposure to allergen.