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Res."],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Human cathelicidin LL-37 shows activity towards both gram-positive and gram-negative bacteria, and it is also active against some types of viruses. Besides its antimicrobial effects, the peptide modulates innate immunity through binding and inactivation of bacterial endotoxins and promoting chemotaxis of immune cells.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      LL-37 is reported to interact with plasma membrane receptors and mediate import of Ca\n                      <jats:sup>2+<\/jats:sup>\n                      . Importantly, LL-37 has both anti- and pro-inflammatory effects. LL-37 is cytotoxic to many different human cell types, particularly infected cells, when administered to the cells at final concentrations of 1\u201310\u00a0\u00b5M. In psoriatic lesions very high concentrations (300\u00a0\u00b5M) of the peptide are detected, and in periodontitis, gingival crevicular fluid contains about 1\u00a0\u00b5M LL-37, implying high concentrations of the peptide at the site of infection\/inflammation which can affect host cell viability locally.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Altogether, LL-37 may inhibit and prevent the infection from spreading by direct anti-bacterial and anti-viral effects, but also via anti- and pro-inflammatory mechanisms, and through killing already infected and weakened host cells at the site of infection\/inflammation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00011-025-02005-8","type":"journal-article","created":{"date-parts":[[2025,3,10]],"date-time":"2025-03-10T01:28:29Z","timestamp":1741570109000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["Human antimicrobial\/host defense peptide LL-37 may prevent the spread of a local infection through multiple mechanisms: an update"],"prefix":"10.1007","volume":"74","author":[{"given":"Daniel","family":"Svensson","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bengt-Olof","family":"Nilsson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,2,11]]},"reference":[{"key":"2005_CR1","doi-asserted-by":"publisher","first-page":"3951","DOI":"10.1182\/blood.v97.12.3951","volume":"97","author":"OE Sorensen","year":"2001","unstructured":"Sorensen OE, Follin P, Johnsen AH, Calafat J, Tjabringa GS, Hiemstra PS, et al. 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