Lipopolysaccharide (LPS) disrupts particle transport, cilia function and sperm motility in an ex vivooviduct model

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Title: Lipopolysaccharide (LPS) disrupts particle transport, cilia function and sperm motility in an ex vivooviduct model
Authors: O'Doherty, Alan
Di Fenza, M.
Permanent link: http://hdl.handle.net/10197/8017
Date: 15-Apr-2016
Abstract: The oviduct functions in the transportation of gametes to the site of fertilization (the ampulla) and is the site of early embryonic development. Alterations of this early developmental environment, such as the presence of sexually transmitted pathogens, may affect oviduct function leading to reduced fertilization rates and contribute to compromised embryonic development. In this study, sperm interactions, particle transport speed (PTS) and cilia beat frequency (CBF) in the ampulla following exposure to lipopolysaccharide (LPS), a constituent of the sexually transmitted pathogens Chlamydia trachomatis and Chlamydia abortus, was investigated. Three complementary experiments were performed to analyse; (1) bound sperm motility and cilia function (2) transport velocity in the oviduct and (3) the expression of genes related to immune function and inflammatory response (CASP3, CD14, MYD88, TLR4 and TRAF6). The motility of bound sperm was significantly lower in ampullae that were exposed to LPS. CBF and PTS significantly increased after treatment with LPS for 2 hours. Finally, gene expression analysis revealed that CASP3 and CD14 were significantly upregulated and TLR4 trended towards increased expression following treatment with LPS. These findings provide an insight on the impact of LPS on the oviduct sperm interaction, and have implications for both male and female fertility.
Type of material: Journal Article
Publisher: Nature Publishing Group
Keywords: Bacterial infection;Lipopolysaccharide;LPS;Reproduction;Immunology;Sperm;Microscopy;Reproductive disorders;Sexually transmitted diseases;STDs;Fertility
DOI: 10.1038/srep24583
Language: en
Status of Item: Peer reviewed
Appears in Collections:Agriculture and Food Science Research Collection

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