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The efficacy of surfactants and prostaglandin inhibitors in preterm labor is also still unclear. In this study, 48 female CD-1 mice were distributed to pregnant control (PC), Sham, PBS, indomethacin (2 mg\/kg; intraperitoneally), lipopolysaccharides (LPS) (25 \u03bcg\/100 \u03bcl; intrauterine), LPS + IND, and Surfactant Protein A Block (SP-A Block: SP-A B; the anti-SP-A antibody was applied 20 \u00b5g\/100\u03bcl; intrauterine) groups. Tissues were examined by immunohistochemistry, immunofluorescence, and Western blot analysis. LPS administration increased the expression of N1 Dll-1 and Jagged-2 (Jag-2). Although Toll-like receptor (Tlr)-2 significantly increased in the LPS-treated and SP-A-blocked groups, Tlr-4 significantly increased only in the LPS-exposed groups. It was observed that Jag-2 is specifically expressed by mast cells. Overall, this experimental model shows that some protein responses increase throughout the uterus, starting at a specific point on the cervix epithelium. Surfactant Protein A, which we observed to be significantly reduced by LPS, may be associated with the regulation of the epithelial response, especially during preterm delivery due to infection. On the contrary, prostaglandin inhibitors can be considered an option to delay infection-related preterm labor with their dose-dependent effects. Finally, the link between mast cells and Jag-2 could potentially be a control switch for preterm birth:<\/jats:p>","DOI":"10.1369\/00221554211061615","type":"journal-article","created":{"date-parts":[[2021,12,20]],"date-time":"2021-12-20T05:06:48Z","timestamp":1639976808000},"page":"121-138","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Relationship of Notch Signal, Surfactant Protein A, and Indomethacin in Cervix During Preterm Birth: Mast Cell and Jagged-2 May Be Key in Understanding Infection-mediated Preterm Birth"],"prefix":"10.1369","volume":"70","author":[{"given":"Sema","family":"Avci","sequence":"first","affiliation":[{"name":"Department of Histology and Embryology, Medical School, Alanya Alaaddin Keykubat University, Alanya, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nilay","family":"Kuscu","sequence":"additional","affiliation":[{"name":"Department of Histology and Embryology, Medical School, Akdeniz University, Antalya, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leyla","family":"Kilinc","sequence":"additional","affiliation":[{"name":"Department of Histology and Embryology, Medical School, Akdeniz University, Antalya, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ismail","family":"Ustunel","sequence":"additional","affiliation":[{"name":"Department of Histology and Embryology, Medical School, Akdeniz University, Antalya, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2021,12,20]]},"reference":[{"issue":"2","key":"bibr1-00221554211061615","volume":"5","author":"Nour NM.","year":"2012","journal-title":"Rev Obstet Gynecol"},{"key":"bibr2-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1002\/ijgo.13195."},{"key":"bibr3-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(12)60820-4."},{"key":"bibr4-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1055\/s-2006-956773."},{"key":"bibr5-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2004.06.085."},{"key":"bibr6-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(08)60074-4."},{"key":"bibr7-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1038\/srep15221."},{"key":"bibr8-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1016\/j.immuni.2010.01.004."},{"key":"bibr9-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1016\/j.cub.2004.01.023"},{"key":"bibr10-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1038\/nrm2009."},{"key":"bibr11-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1155\/2011\/570796."},{"key":"bibr12-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1038\/bjc.2013.642."},{"key":"bibr13-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1093\/oxfordjournals.humrep.a137666."},{"key":"bibr14-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1111\/j.1749-6632.1962.tb34682.x."},{"key":"bibr15-00221554211061615","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.2012.03341.x."},{"key":"bibr16-00221554211061615","unstructured":"Speroff LGR, Kase NG. 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