Document 0841 DOCN M9650841 TI Photodynamic inactivation of cell-free HIV strains by a red-absorbing chlorin-type photosensitizer. DT 9605 AU Grandadam M; Ingrand D; Huraux JM; Aveline B; Delgado O; Vever-Bizet C; Brault D; Laboratoire de Virologie du CERVI, CNRS EP 57, Hopital de la; Pitie-Salpetriere, Paris, France. SO J Photochem Photobiol B. 1995 Dec;31(3):171-7. Unique Identifier : AIDSLINE MED/96141459 AB We have investigated the photodynamic activity of a new chlorin-type photosensitizer on a reference human immunodeficiency virus type 1 (HIV-1) strain, two wild-type HIV-1 isolates and two drug-resistant HIV-1 isolates. This chlorin was highly effective for the inactivation of free viruses, as assessed by two different quantitative cell culture assays. In the absence of blood components, all the HIV strains, including wild-type and drug-resistant mutant isolates, were totally inactivated using 30 micrograms ml-1 of chlorin and 0.75 J cm-2 of 661 nm light. Successful killing of HIV-1 strains in either plasma or whole blood was also obtained by increasing the chlorin concentration moderately. Our results demonstrate the antiviral efficiency of this chlorin, suggesting the potential application of dye-sensitized photoirradiation to decontaminate blood products. DE Blood Buffers Cell Line Cell-Free System Cells, Cultured Deuteroporphyrins/CHEMISTRY/PHARMACOLOGY Hela Cells Human HIV Infections/VIROLOGY HIV-1/*DRUG EFFECTS/ISOLATION & PURIF/*RADIATION EFFECTS *Light Photosensitizing Agents/*PHARMACOLOGY Plasma Porphyrins/CHEMISTRY/*PHARMACOLOGY Support, Non-U.S. Gov't JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).