Clinical and Diagnostic Laboratory Immunology, May 1998, p. 308-312, Vol. 5, No. 3
1071-412X/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
-Chemokine Production in Human Immunodeficiency
Virus Type 1 (HIV-1)-Seropositive Subjects after Immunization with
an Inactivated gp120-Depleted HIV-1 Immunogen (Remune)
The Immune Response Corporation,
Received 29 December 1997/Returned for modification 16 February
1998/Accepted 26 February 1998
We examined the effect of immune stimulation by a human
immunodeficiency virus type 1 (HIV-1) immunogen (Remune) compared to a
non-HIV vaccine (influenza) on HIV-1-specific immune responses in
HIV-1-seropositive subjects. HIV-1 p24 antigen-stimulated lymphocyte proliferation was not augmented after immunization with the influenza vaccine. In contrast, subjects increased their lymphocyte proliferative responses to p24 antigen after one immunization with HIV-1 immunogen (Remune) (gp120-depleted inactivated HIV-1 in incomplete Freund's adjuvant). Furthermore, p24 antigen-stimulated
-chemokine production (RANTES, MIP-1
, MIP-1
) was also augmented after immunization with
the HIV-1 immunogen but not influenza vaccine. Taken together, these
results suggest that in this cohort, HIV-specific immune responses to
p24 antigen can be augmented after immunization with an HIV-1
immunogen. The ability to upregulate immune responses to the more
conserved core proteins may have important implications in the
development of immunotherapeutic interventions for HIV-1 infection.
*
Corresponding author. Mailing address: The Immune
Response Corp., 5935 Darwin Ct., Carlsbad, CA 92008. Phone: (760)
431-7080. Fax: (760) 431-8636. E-mail: shotdoc{at}imnr.com.
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