title: Kinetics of primary and memory cytotoxic T lymphocyte responses to herpes simplex virus 1 infection: granzyme B mediated CTL activity.
abstract: Herpes simplex virus type 1 is one of the most common viruses among human population. Studies demonstrate the essential role of cell mediated immunity, especially CD8+ T cells, in prevention and clearance of HSV1.
  
  
  
  It is of great importance to improve our knowledge about the kinetics of CTL responses to primary and secondary HSV-1 infection.
  
  
  
  Using a sensitive technique for detection and analysis of CD8+ T cells, granzyme B ELISA, the CTL activity in the spleens of Balb/c mice at various time points after intraperitoneal administration of HSV1 (strain KOS) in primary and secondary infections were determined.
  
  
  
  During acute HSV-1 infection, virus specific cytotoxic T cells were detected at day 5 post virus inoculation and peaked at day 7. Six hours after secondary infection the activity of memory CD8+ T cells was detected and peaked at 12 hours post infection.
  
  
  
  The peak of CTL activity was found to be day 7 post infection in primary HSV-1 infections which decreased with time. In secondary infections, the activity of CTLs reached the highest level at 12 hours post infection.
authors.affiliation: Department of Virology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
authors.forename: Masumeh
authors.initials: M
authors.lastname: Gorgian Mohammadi
authors.forename: Taravat
authors.initials: T
authors.lastname: Bamdad
authors.forename: Masoud
authors.initials: M
authors.lastname: Parsania
authors.forename: Hamid Reza
authors.initials: HR
authors.lastname: Hashemi
authors.forename: Somayeh
authors.initials: S
authors.lastname: Puyanfard
mesh_terms: D000818:Animals; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology / Q000378:metabolism; D045744:Cell Line, Tumor; D003601:Cytotoxicity Tests, Immunologic; D003602:Cytotoxicity, Immunologic / Q000276:immunology*; D005260:Female; D053804:Granzymes / Q000378:metabolism*; D006561:Herpes Simplex / Q000276:immunology*; D018259:Herpesvirus 1, Human / Q000276:immunology*; D007156:Immunologic Memory / Q000276:immunology*; D007700:Kinetics; D051379:Mice; D008807:Mice, Inbred BALB C; D013154:Spleen / Q000166:cytology / Q000276:immunology; D016176:T-Lymphocyte Subsets / Q000276:immunology / Q000378:metabolism; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology* / Q000378:metabolism; D013997:Time Factors
chemical_list: D053804:Granzymes; C509214:Gzmb protein, mouse