{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T14:49:15Z","timestamp":1767192555062,"version":"build-2065373602"},"reference-count":73,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,4,30]],"date-time":"2020-04-30T00:00:00Z","timestamp":1588204800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Economic Development and Innovation Operational Programme &quot;The use of chip-technology in increasing the effectiveness of human in vitro fertilization&quot;","award":["GINOP-2.3.2-15-2016-00021"],"award-info":[{"award-number":["GINOP-2.3.2-15-2016-00021"]}]},{"name":"NRDI (OTKA)","award":["115394\/K"],"award-info":[{"award-number":["115394\/K"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Embryo implantation is a complex process regulated by a network of biological molecules. Recently, it has been described that fractalkine (CX3CL1, FKN) might have an important role in the feto\u2013maternal interaction during gestation since the trophoblast cells express fractalkine receptor (CX3CR1) and the endometrium cells secrete fractalkine. CX3CR1 controls three major signalling pathways, PLC-PKC pathway, PI3K\/AKT\/NF\u03baB pathway and Ras-mitogen-activated protein kinases (MAPK) pathways regulating proliferation, growth, migration and apoptosis. In this study, we focused on the molecular mechanisms of FKN treatment influencing the expression of implantation-related genes in trophoblast cells (JEG-3) both in mono-and in co-culture models. Our results reveal that FKN acted in a concentration and time dependent manner on JEG-3 cells. FKN seemed to operate as a positive regulator of implantation via changing the action of progesterone receptor (PR), activin receptor and bone morphogenetic protein receptor (BMPR). FKN modified also the expression of matrix metalloproteinase 2 and 9 controlling invasion. The presence of HEC-1A endometrial cells in the co-culture contributed to the effect of fractalkine on JEG-3 cells regulating implantation. The results suggest that FKN may contribute to the successful attachment and implantation of embryo.<\/jats:p>","DOI":"10.3390\/ijms21093175","type":"journal-article","created":{"date-parts":[[2020,5,4]],"date-time":"2020-05-04T14:00:43Z","timestamp":1588600843000},"page":"3175","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Fractalkine Regulates HEC-1A\/JEG-3 Interaction by Influencing the Expression of Implantation-Related Genes in an In Vitro Co-Culture Model"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3340-0102","authenticated-orcid":false,"given":"Ram\u00f3na","family":"Pap","sequence":"first","affiliation":[{"name":"Department of Pharmaceutical Biology, Faculty of Pharmacy, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gergely","family":"Montsk\u00f3","sequence":"additional","affiliation":[{"name":"Szent\u00e1gothai Research Centre, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"},{"name":"MTA-PTE Human Reproduction Research Group, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gergely","family":"J\u00e1nosa","sequence":"additional","affiliation":[{"name":"Department of Pharmaceutical Biology, Faculty of Pharmacy, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6706-2682","authenticated-orcid":false,"given":"Katalin","family":"Sipos","sequence":"additional","affiliation":[{"name":"Department of Pharmaceutical Biology, Faculty of Pharmacy, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5298-5401","authenticated-orcid":false,"given":"G\u00e1bor L.","family":"Kov\u00e1cs","sequence":"additional","affiliation":[{"name":"Szent\u00e1gothai Research Centre, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"},{"name":"MTA-PTE Human Reproduction Research Group, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"},{"name":"Department of Laboratory Medicine, Medical School, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5012-3242","authenticated-orcid":false,"given":"Edina","family":"Pandur","sequence":"additional","affiliation":[{"name":"Department of Pharmaceutical Biology, Faculty of Pharmacy, University of P\u00e9cs, H-7624 P\u00e9cs, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,4,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"939","DOI":"10.1016\/j.mam.2012.12.011","article-title":"Physiological and molecular determinants of embryo implantation","volume":"34","author":"Wang","year":"2013","journal-title":"Mol. 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