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The cysteine protease inhibitors cystatins inhibit herpes simplex virus type 1-induced apoptosis and virus yield in HEp-2 cells

In English

Författare

  • Piritta Peri
  • Veijo Hukkanen
  • Kristiina Nuutila
  • Pekka Saukko
  • Magnus Abrahamson
  • Tytti Vuorinen

Summary, in English

The role of cystatins in herpes simplex virus (HSV)-induced apoptosis and viral replication has been studied. Human epithelial (HEp-2) cells infected with wild-type HSV-1 (F), with a deletion virus lacking the anti-apoptotic gene Us3 (R7041) or with a deletion virus lacking the anti-apoptotic genes Us3 and ICP4 (d120) were treated with cystatin A, C or D. Cells and culture media were studied at different time points for replicating HSV-1 and for apoptosis. Cystatins C and D inhibited the yield of replicative HSV-1 significantly in HEp-2 cells. In addition, cystatin D inhibited R7041 and d120 virus-induced apoptosis. Moreover, cystatin A inhibited R7041 induced apoptosis. These inhibitory effects of cystatins on virus replication and apoptosis are likely to be separate functions. Cystatin D treatment decreased cellular cathepsin B activity in HSV-1 infection, suggesting that cathepsin B is involved in virus-induced apoptosis.

Publiceringsår

2007

Språk

Engelska

Sidor

2101-2105

Publikation/Tidskrift/Serie

Journal of General Virology

Volym

88

Issue

8

Dokumenttyp

Artikel i tidskrift

Förlag

Microbiology Society

Ämne

  • Pharmacology and Toxicology
  • Medicinal Chemistry

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1465-2099