id author title date pages extension mime words sentences flesch summary cache txt cord-258374-qht98q0l Takano, Tomomi Neutrophil survival factors (TNF-alpha, GM-CSF, and G-CSF) produced by macrophages in cats infected with feline infectious peritonitis virus contribute to the pathogenesis of granulomatous lesions 2009-04-03 .txt text/plain 3690 198 45 title: Neutrophil survival factors (TNF-alpha, GM-CSF, and G-CSF) produced by macrophages in cats infected with feline infectious peritonitis virus contribute to the pathogenesis of granulomatous lesions Furthermore, it was investigated whether macrophages, one of the target cells of FIPV infection, produce neutrophil survival factors (TNF-alpha, GM-CSF, and G-CSF). The neutrophil survival rates were significantly increased in the presence of the culture supernatant of macrophages infected with the mixture of FIPV and MAb 6-4-2 compared to those in the presence of other supernatants (Fig. 5) . When SPF-cat-derived alveolar macrophages were infected with a mixture of FIPV and MAb 6-4-2, the intracellular TNF-alpha, GM-CSF, and G-CSF mRNA levels increased (Fig. 6 ). These cytokine mRNA levels were also elevated in macrophages infected with FIPV and MAb 6-4-2, clarifying the presence of neutrophil survival factors in the macrophage culture supernatant. It was suggested that: (1) FIPV-infected macrophages release TNF-alpha, GM-CSF, and G-CSF in response to virus replication, and (2) these cytokines act on neutrophils and prolong their survival. ./cache/cord-258374-qht98q0l.txt ./txt/cord-258374-qht98q0l.txt