Recent research findings point to a spectrum of alcohol-induced immune
dysfunctions in animal models and humans. Use of alcohol in vivo caus
es abnormalities in the function and/or structure of a broad array of
cells involved in humoral and cellular immunity, including lymphocytes
, Kupffer cells and other macrophages, as well as the endothelium of b
lood vessels and lymphatics. Regulatory cytokines and neuroendocrine f
actors can mediate some of these immunomodulatory effects which may be
further re-phased, exaggerated or unbalanced by other drugs of misuse
. A variety of animal models is available to study acute and chronic a
lcoholism, non-alcohol drug misuse, AIDS as well as other opportunisti
c infections, and neoplasias, which hold promise of clarifying the rol
e of alcohol as an immunomodulator.