Tombultürk, Fatma KübraSoydaş, TuğbaSaraç, Elif YaprakTunçdemir, MatemCoşkunpınar, EnderPolat, ErdalSirekbasan, SerhatKanigur-Sultuybek, Gönül2020-08-302020-08-302019Tombulturk, F. K., Soydas, T., Sarac, E. Y., Tuncdemir, M., Coskunpinar, E., Polat, E., … Kanigur-Sultuybek, G. (2019). Regulation of MMP 2 and MMP 9 expressions modulated by AP-1 (c-jun) in wound healing: improving role of Lucilia sericata in diabetic rats. ACTA DIABETOLOGICA, 56(2), 177–186. https://doi.org/10.1007/s00592-018-1237-50940-54291432-5233https://doi.org/10.1007/s00592-018-1237-5https://hdl.handle.net/20.500.12713/672Sirekbasan, Serhat/0000-0001-7967-3539; Tuncdemir, Matem/0000-0002-5300-4449; Tombulturk, Fatma Kubra/0000-0002-4358-2309AimsLucilia sericata larvae have been successfully used on healing of wounds in the diabetics. However, the involvement of the extraction/secretion (ES) products of larvae in the treatment of diabetic wounds is still unknown. Activator protein-1 (AP-1) transcription, composed of c-jun and c-Fos proteins, has been shown to be the principal regulator of multiple MMP transcriptions under a variety of conditions, also in diabetic wounds. Specifically, MMP-2 and MMP-9's transcriptions are known to be modulated by AP-1. c-jun has been demonstrated to be a repressor of p53 in immortalized fibroblasts. The aim of the present study is to investigate the effects of L. sericata ES on the expression of AP-1 (c-jun), p53, MMP-2, and MMP-9 in wound biopsies dissected from streptozotocin induced diabetic rats.MethodsThe expression levels of MMP-2, MMP-9, c-jun and p53 in dermal tissues were determined at days 0, 3, 7 and 14 after wounding, using immunohistochemical analysis and quantitative real-time PCR.ResultsThe treatment with ES significantly decreased through inflammation-based induction of MMP-2 and MMP-9 expression levels in the wounds of diabetic groups, compared to control groups at the third day of wound healing. At the 14th day, there were dramatic decreases in expression of c-jun, MMP-9, and p53 in ES-treated groups, compared to the diabetic group (P<0.001, P<0.05 and P<0.01, respectively).ConclusionES products of L. sericata may enhance the process of wound healing in phases of inflammation, proliferation, and re-epithelization, essentially via regulating c-jun expression and modulating MMP-2 and MMP-9 expressions.eninfo:eu-repo/semantics/closedAccessStz DiabetesMaggot Debridement TherapyLucilia SericataMmpP53Ap-1Article56217718630302545WOS:0004582791000062-s2.0-85054789427Q210.1007/s00592-018-1237-5Q1