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However, the mechanisms that control this resistance are not completely understood. In this study, we established an in vitro <jats:italic>Salmonella<\/jats:italic> infection model in porcine neutrophils, and analyzed the cellular transcriptome by deep sequencing and flow cytometry. The results showed that ribosomal gene transcription was inhibited, and two of these genes, RPL39 and RPL9, were related to <jats:italic>TRP53<\/jats:italic> activation. Furthermore, several important innate immunity genes were also inhibited. Knock-down of RPL39 and RPL9 by siRNA caused an approximate fourfold up-regulation of TRP53. Knock-down of RPL39 and RPL9 also resulted in a significant down-regulation of IFNG and TNF, indicating an inhibition of the innate immune response. Silencing of RPL39 and RPL9 also resulted in the up-regulation of FAS, RB1, CASP6, and GADD45A, which play roles in cell cycle arrest and apoptosis. Neutrophils were either first treated with RPL39 siRNA, RPL9 siRNA, TRP53 activator, or TRP53 inhibitor, and then infected with <jats:italic>Salmonella<\/jats:italic>. Knock-down of RPL39 and RPL9, or treatment with TRP53 activator, can increase the intracellular proliferation of <jats:italic>Salmonella<\/jats:italic> in neutrophils. We speculate that much of the <jats:italic>Salmonella<\/jats:italic> virulence can be attributed to the enhancement of cell cycle arrest and the inhibition of the innate immune response, which allows the bacteria to successfully proliferate intracellularly.<\/jats:p>","DOI":"10.1186\/s13567-020-00828-3","type":"journal-article","created":{"date-parts":[[2020,8,27]],"date-time":"2020-08-27T13:04:15Z","timestamp":1598533455000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Salmonella enterica serovar Typhimurium inhibits the innate immune response and promotes apoptosis in a ribosomal\/TRP53-dependent manner in swine neutrophils"],"prefix":"10.1186","volume":"51","author":[{"given":"Tinghua","family":"Huang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Caiyun","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Min","family":"Yang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hong","family":"Xiao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiali","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lingbo","family":"Wu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9867-7372","authenticated-orcid":false,"given":"Min","family":"Yao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2020,8,27]]},"reference":[{"key":"828_CR1","doi-asserted-by":"publisher","first-page":"887","DOI":"10.1089\/fpd.2010.0787","volume":"8","author":"RS Hendriksen","year":"2011","unstructured":"Hendriksen RS, Vieira AR, Karlsmose S, Lo Fo Wong DM, Jensen AB, Wegener HC, Aarestrup FM (2011) Global monitoring of Salmonella serovar distribution from the World Health Organization Global Foodborne Infections Network Country Data Bank: results of quality assured laboratories from 2001 to 2007. 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