Document 0575 DOCN M94A0575 TI In vitro studies of Schwann cell infectivity by human immunodeficiency virus (HIV). DT 9412 AU Ayers MM; Turnbull V; Siregar H; Crowe SM; Gonzales MF; Neuropathology Research Laboratory, Royal Melbourne Hospital,; Parkville, Vic. SO Annu Conf Australas Soc HIV Med. 1993 Oct 28-30;5:99 (poster no. 48). Unique Identifier : AIDSLINE ASHM5/94349080 AB Attention has recently focussed on Schwann cells as antigen presenting cells in inflammatory demyelinating polyneuropathy (IDPN). Whether Schwann cells process and present antigen following viral infection is of particular interest. To determine if human Schwann cells can be infected by HIV, cultures of Schwann cells were established from a sural nerve biopsy in a patient with Type 1 hereditary motor sensory neuropathy (HMSN). Three cultures were established over a period of eight weeks. Two cultures were then exposed to the Ba-L strain of HIV. HIV p24 was quantified in all three culture supernatants by ELISA and cultures double immunostained for p24 and the Schwann cell marker, S-100 protein. The data from these experiments are preliminary but indicate that Schwann cells can be infected in vitro by HIV. Infection of Schwann cells by HIV may be an important event in the pathogenesis of HIV-associated peripheral neuropathy. DE Antigen-Presenting Cells/*IMMUNOLOGY Biopsy Cells, Cultured Human HIV/*PATHOGENICITY HIV Infections/*IMMUNOLOGY Neuropathies, Hereditary Motor and Sensory/PATHOLOGY Polyradiculoneuritis/*IMMUNOLOGY Schwann Cells/*IMMUNOLOGY/MICROBIOLOGY Sural Nerve/IMMUNOLOGY/PATHOLOGY Virulence MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).