Priming of rabbit alveolar macrophages for enhanced oxidative responses by herpes simplex virus type 2 infection.
The effect of herpes simplex virus type 2 (HSV-2) infection on the oxidative response in infant and adult rabbit alveolar macrophages (AM) was studied using either phorbol myristate acetate (0.5 microgram PMA/ml) or latex (250 micrograms/ml) as eliciting agents in a chemiluminescence (CL) assay. Results indicated that uninfected infant AM responded to a latex-elicited but not PMA-elicited CL response. HSV-2 infection (moi = 1.0) of infant AM for 2 hr at 37 degrees C did not alter the PMA or latex-elicited CL responses. In contrast, uninfected adult AM exhibited a markedly increased CL response when elicited with either PMA or latex. HSV-2 infection (moi = 1) of adult AM for 2 hr further increased both PMA- and latex-elicited CL responses. Increasing the moi to 10 inhibited both PMA- and latex-elicited CL responses. Incubation of uninfected control and HSV-2 infected adult AM for 18 hr at 37 degrees C resulted in spontaneous priming of the cells for increased CL responses. In the absence of PMA HSV-2 alone failed to elicit a CL response in adult AM. Infection with heat-inactivated HSV-2 (moi = 1.0 before heat inactivation) did not prime adult AM for enhanced CL responses. AM from BCG immunized adult rabbit produced a considerably higher level CL response that nonimmunized AM; however, HSV-2 infection of these cells did not further enhance the response. In summary, these data indicate that adult AM but not infant AM can be primed by active HSV-2 infection for an increased CL response elicited by either PMA or latex.
Giridhar
G
G
Department of Microbiology and Immunology, Bowman Gray School of Medicine of Wake Forest University, Winston-Salem, North Carolina 27103.
Hayakawa
H
H
Kucera
L S
LS
Myrvik
Q N
QN
D000818:Animals; D002472:Cell Transformation, Viral; D002478:Cells, Cultured; D005260:Female; D007700:Kinetics; D008163:Luminescent Measurements; D008165:Luminol; D008264:Macrophages / Q000187:drug effects / Q000276:immunology / Q000502:physiology*; D008297:Male; D009163:Mycobacterium bovis / Q000276:immunology; D010101:Oxygen Consumption; D011817:Rabbits; D018139:Simplexvirus / Q000235:genetics*; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology
D008165:Luminol; D013755:Tetradecanoylphorbol Acetate