PMID- 12597359 OWN - NLM STAT- MEDLINE DCOM- 20030411 LR - 20190822 IS - 0385-5600 (Print) IS - 0385-5600 (Linking) VI - 46 IP - 12 DP - 2002 TI - Construction and in vitro properties of chimeric simian and human immunodeficiency virus with the human TNF-alpha gene. PG - 849-55 AB - Tumor necrosis factor-alpha (TNF-alpha) has been reported to be involved in the development and progression of acquired immunodeficiency syndrome (AIDS). To study the role of this cytokine in AIDS pathogenesis, we constructed a chimeric simian and human immunodeficiency virus (SHIV) having the human TNF-alpha gene (SHIV-TNF) and characterized its properties in vitro. SHIV-TNF replicated both in M8166, a human T cell line, and in monkey peripheral blood mononuclear cells (PBMCs). Along with SHIV-TNF replication, TNF-alpha was detected in the culture supernatant by ELISA. The maximum expression level of TNF-alpha reached 120 ng/ml in M8166 cells, and 2.5 ng/ml in monkey PBMCs. The expressed TNF was biologically active, as shown by a cytotoxic assay using TNF-sensitive L929 mouse fibroblasts. This activity was detected at least until 10 passages of SHIV-TNF (74 days after the initial infection). In monkey PBMCs, SHIV-TNF replicated much better than the parental SHIV-NI. Flow cytometric analysis showed that the death of monkey PBMCs infected with SHIV-TNF was severer than that caused by the parental SHIV-NI. These results suggest that SHIV-TNF would be useful for inducing the disease in a monkey model, which may contribute to a better understanding of the role of TNF-alpha in AIDS etiology. FAU - Haga, Takeshi AU - Haga T AD - Department of Veterinary Microbiology, Miyazaki University, Kibanadai Nishi, Miyazaki 889-2192, Japan. a0d518u@cc.miyazaki-u.ac.jp FAU - Shimizu, Yuya AU - Shimizu Y FAU - Okoba, Masashi AU - Okoba M FAU - Kumabe, Shino AU - Kumabe S FAU - Goto, Yoshitaka AU - Goto Y FAU - Shinjo, Toshiharu AU - Shinjo T FAU - Ichimura, Hiroshi AU - Ichimura H FAU - Kuwata, Takeo AU - Kuwata T FAU - Hayami, Masanori AU - Hayami M FAU - Miura, Tomoyuki AU - Miura T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Australia TA - Microbiol Immunol JT - Microbiology and immunology JID - 7703966 RN - 0 (Annexin A5) RN - 0 (DNA, Recombinant) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Animals MH - Annexin A5/analysis MH - Cell Line MH - DNA, Recombinant/genetics MH - HIV/*genetics MH - Humans MH - Macaca MH - Models, Genetic MH - Recombination, Genetic MH - Simian Immunodeficiency Virus/*genetics MH - Tumor Necrosis Factor-alpha/analysis/*genetics EDAT- 2003/02/25 04:00 MHDA- 2003/04/12 05:00 CRDT- 2003/02/25 04:00 PHST- 2003/02/25 04:00 [pubmed] PHST- 2003/04/12 05:00 [medline] PHST- 2003/02/25 04:00 [entrez] AID - 10.1111/j.1348-0421.2002.tb02772.x [doi] PST - ppublish SO - Microbiol Immunol. 2002;46(12):849-55. doi: 10.1111/j.1348-0421.2002.tb02772.x.