OBJECTIVES: HIV-1 transcripts have been detected in AIDS-related Kaposi's sarcoma (KS) tissues within the factor XIIIa + dermal dendrocytes present in the tumor. Various cytokines and growth factors have been shown to influence the growth of KS-derived cells in vitro. HIV-1 preferentially infects CD4+ cells and has also been found to infect some CD4- cells in vitro. The susceptibility of cultured KS cells in vitro to infection with HIV-1 and the expression of interleukin (IL)-1 beta, IL-6 and basic fibroblast growth factor (bFGF) after exposure to HIV-1 was examined. METHODS: The susceptibility of two different KS-derived cell cultures to HIV-1 infection was examined by the expression of p24 antigen, detection of proviral sequence and electron microscopy. The expression of IL-1 beta, IL-6 and bFGF was detected by enzyme-linked immunosorbent assay and reverse transcriptase polymerase chain reaction. RESULTS: KS-derived cells can be infected by HIV-1 in vitro. Both KS-derived cells were found to express CD4 mRNA. The expression of IL-1 beta and IL-6 was increased, whereas the expression of bFGF was not stimulated after exposure of KS cells to HIV-1. CONCLUSION: These experiments describe the in vitro infection of KS-derived cells by HIV-1 and the expression of various cytokines and growth factor following infection. The increased production of cytokines observed following such infection may be involved in the pathogenesis of AIDS-related KS.
OBJECTIVES:HIV-1 transcripts have been detected in AIDS-related Kaposi's sarcoma (KS) tissues within the factor XIIIa + dermal dendrocytes present in the tumor. Various cytokines and growth factors have been shown to influence the growth of KS-derived cells in vitro. HIV-1 preferentially infects CD4+ cells and has also been found to infect some CD4- cells in vitro. The susceptibility of cultured KS cells in vitro to infection with HIV-1 and the expression of interleukin (IL)-1 beta, IL-6 and basic fibroblast growth factor (bFGF) after exposure to HIV-1 was examined. METHODS: The susceptibility of two different KS-derived cell cultures to HIV-1 infection was examined by the expression of p24 antigen, detection of proviral sequence and electron microscopy. The expression of IL-1 beta, IL-6 and bFGF was detected by enzyme-linked immunosorbent assay and reverse transcriptase polymerase chain reaction. RESULTS: KS-derived cells can be infected by HIV-1 in vitro. Both KS-derived cells were found to express CD4 mRNA. The expression of IL-1 beta and IL-6 was increased, whereas the expression of bFGF was not stimulated after exposure of KS cells to HIV-1. CONCLUSION: These experiments describe the in vitro infection of KS-derived cells by HIV-1 and the expression of various cytokines and growth factor following infection. The increased production of cytokines observed following such infection may be involved in the pathogenesis of AIDS-related KS.
Authors: N Christeff; S Gharakhanian; N Thobie; E Wirbel; M T Dalle; D Costagliola; E A Nunez; W Rozenbaum Journal: J Clin Pathol Date: 1997-04 Impact factor: 3.411
Authors: Z Y Liu; R K Ganju; J F Wang; M A Ona; W C Hatch; T Zheng; S Avraham; P Gill; J E Groopman Journal: J Clin Invest Date: 1997-04-01 Impact factor: 14.808
Authors: Masatoshi Deguchi; Diana Whitaker-Menezes; Stephen C Jones; Setsuya Aiba; Satoshi Nakagawa; Hachiro Tagami; Robert Korngold; George F Murphy Journal: Am J Pathol Date: 2003-11 Impact factor: 4.307
Authors: T Simonart; C Debussher; C Liesnard; L Debaisieux; M L Delforge; A de Lavareille; P Hermans; J P Van Vooren; P Stordeur Journal: BMC Dermatol Date: 2001-07-24