挑战增加输卵管外植体中基质金属蛋白酶-8 的表达。

Challenge Increases Matrix Metalloproteinase-8 Expression in Fallopian Tube Explants.

机构信息

Facultad de Medicina, Center for Integrative Medicine and Innovative Science, Universidad Andres BelloSantiago, Chile.

Servicio de Ginecología y Obstetricia, Hospital San JoséSantiago, Chile.

出版信息

Front Cell Infect Microbiol. 2017 Sep 6;7:399. doi: 10.3389/fcimb.2017.00399. eCollection 2017.

Abstract

(Ngo) is the etiological agent of gonorrhea, a sexually transmitted infection that initially infects the female lower genital tract. In untreated women, the bacteria can ascend to the upper genital reproductive tract and infect the fallopian tube (FTs), which is associated with salpingitis and can lead to impaired FT function and infertility. The extracellular matrix (ECM) plays an important role in cell migration and differentiation in the female genital tract, and some pathogens modify the ECM to establish successful infections. The ECM is regulated by matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs), their endogenous inhibitors; MMP deregulation causes pathological conditions in a variety of tissues. The aim of this work was to analyze the expression and localization of MMP-3, MMP-8, MMP-9, and TIMP-1 in FT explants during Ngo infection using real-time PCR, immunohistochemistry, zymography and ELISA. No significant variations in MMP-3, MMP-9, and TIMP-1 transcript levels were observed. In contrast, a significant increase ( < 0.05) was observed for MMP-8 expression and was accompanied by stromal immunoreactivity in infected explants. ELISA results supported these findings and showed that MMP-8 release increased upon gonococcal infection. Our results indicate that gonococcal infection induces increased MMP-8 expression, which might contribute to FT damage during infection.

摘要

(Ngo)是淋病的病原体,淋病是一种性传播感染,最初感染女性下生殖道。在未经治疗的女性中,细菌可以向上生殖道生殖器官上升并感染输卵管(FTs),这与输卵管炎有关,并可能导致 FT 功能受损和不孕。细胞外基质(ECM)在女性生殖道中的细胞迁移和分化中起着重要作用,一些病原体修饰 ECM 以建立成功的感染。ECM 受基质金属蛋白酶(MMPs)和金属蛋白酶组织抑制剂(TIMPs)及其内源性抑制剂的调节;MMP 失调会导致各种组织的病理状况。本工作的目的是使用实时 PCR、免疫组织化学、酶谱和 ELISA 分析 Ngo 感染期间 FT 外植体中 MMP-3、MMP-8、MMP-9 和 TIMP-1 的表达和定位。未观察到 MMP-3、MMP-9 和 TIMP-1 转录水平的显着变化。相比之下,观察到 MMP-8 表达显着增加(<0.05),并且感染外植体中存在基质免疫反应性。ELISA 结果支持这些发现,并表明淋病奈瑟菌感染后 MMP-8 的释放增加。我们的结果表明,淋病奈瑟菌感染诱导 MMP-8 表达增加,这可能导致感染过程中的 FT 损伤。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/efb9/5592203/cffa68872e7f/fcimb-07-00399-g0001.jpg

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