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2001 APR 18 - (NewsRx.com & NewsRx.net) --
Epimmune, Inc. (EPMN) announced on April 2, 2001, positive pre-clinical data on its HIV vaccine, which is designed to directly address the problem of viral mutation.
Company scientists reported that the vaccine stimulated multiple anti-HIV cytotoxic T-cell immune responses in animal models.
Epimmune has begun manufacturing the vaccine for human testing and plans to initiate clinical trials late this year or early 2002 in both non-infected volunteers and in individuals infected with HIV.
Strong cellular immunity is characteristic of long-term non-progressors or HIV positive individuals who do not progress to AIDS for long periods even without antiretroviral drug therapy. Epimmune's approach to vaccine development is based on epitopes from non-mutating regions of multiple virus proteins that are specifically selected for their ability to stimulate two types of cellular immunity, cytotoxic T cells (CTLs) and helper T cells (HTLs). Together, CTLs and HTLs comprise the body's natural defense against HIV in which CTLs are capable of directly destroying virus-infected cells but require HTLs, which produce immune-boosting ...