PMID- 2825669 OWN - NLM STAT- MEDLINE DCOM- 19871221 LR - 20190612 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 148 IP - 2 DP - 1987 Oct 29 TI - A biological response modifier, PSK, inhibits human immunodeficiency virus infection in vitro. PG - 726-33 AB - PSK, a biological response modifier (BRM), was studied to determine its anti-viral activity on human immunodeficiency virus (HIV) in vitro. Either a novel infection system using human T-cell lymphotropic virus type I (HTLV-I)-carrying MT-4 cells or a coculture system using MOLT-4 cells and its virus-producing cells MOLT-4/HIVHTLV-IIIB which induces multinucleated giant cells very efficiently was used. PSK almost completely blocked the cytopathic effect such as giant cell formation and HIV-specific antigen expression both in MT-4 cells and MOLT-4 cells at a concentration of 0.4 and 0.8 mg/ml, respectively. Pretreatment of the virus with PSK may specifically interfere with early stages of HIV infection by modifying the viral receptor. FAU - Tochikura, T S AU - Tochikura TS AD - Dept. of Virology and Parasitology, Yamaguchi University School of Medicine, Japan. FAU - Nakashima, H AU - Nakashima H FAU - Hirose, K AU - Hirose K FAU - Yamamoto, N AU - Yamamoto N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (Antigens, Viral) RN - 0 (Antiviral Agents) RN - 0 (Proteoglycans) RN - 3X48A86C8K (polysaccharide-K) SB - IM MH - Antigens, Viral/analysis MH - Antiviral Agents/*pharmacology MH - Cell Line MH - Deltaretrovirus/*drug effects/genetics/growth & development MH - Fluorescent Antibody Technique MH - HIV/*drug effects/genetics/growth & development MH - Humans MH - Kinetics MH - Proteoglycans/*pharmacology EDAT- 1987/10/29 00:00 MHDA- 1987/10/29 00:01 CRDT- 1987/10/29 00:00 PHST- 1987/10/29 00:00 [pubmed] PHST- 1987/10/29 00:01 [medline] PHST- 1987/10/29 00:00 [entrez] AID - 0006-291X(87)90936-3 [pii] AID - 10.1016/0006-291x(87)90936-3 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 1987 Oct 29;148(2):726-33. doi: 10.1016/0006-291x(87)90936-3.