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S100-A9 protein in exosomes derived from follicular fluid promotes inflammation via activation of NF-?B pathway in polycystic ovary syndrome.


ABSTRACT: Exosomes have recently emerged as key mediators of different physiological and pathological processes. However, there has been few report about proteomic analysis of exosomes derived from human follicular fluid and their association with the occurrence of PCOS. Herein, we used TMT-tagged quantitative proteomic approach to identify proteomic profiles in exosomes derived from follicular fluid of PCOS patients and healthy controls. We identified 662 proteins in exosomes derived from human ovarian follicular fluid. Eighty-six differently expressed proteins (P < .05) were found between PCOS and healthy women. The alterations in the proteomic profile were related to the inflammation process, reactive oxygen species metabolic process, cell migration and proliferation. Importantly, we observed that follicular fluid exosomes contain S100 calcium-binding protein A9 (S100-A9) protein. Exosome-enriched S100-A9 significantly enhanced inflammation and disrupted steroidogenesis via activation of nuclear factor kappa B (NF-?B) signalling pathway. These data demonstrate that exosomal proteins are differentially expressed in follicular fluid during disease process, and some proteins may play important roles in the regulation of granulosa cell function. These results highlight the importance of exosomes as extracellular communicators in ovarian follicular development.

SUBMITTER: Li H 

PROVIDER: S-EPMC6933366 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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S100-A9 protein in exosomes derived from follicular fluid promotes inflammation via activation of NF-κB pathway in polycystic ovary syndrome.

Li Han H   Huang Xin X   Chang Xinwen X   Yao Julei J   He Qizhi Q   Shen Zhijun Z   Ji Yazhong Y   Wang Kai K  

Journal of cellular and molecular medicine 20190930 1


Exosomes have recently emerged as key mediators of different physiological and pathological processes. However, there has been few report about proteomic analysis of exosomes derived from human follicular fluid and their association with the occurrence of PCOS. Herein, we used TMT-tagged quantitative proteomic approach to identify proteomic profiles in exosomes derived from follicular fluid of PCOS patients and healthy controls. We identified 662 proteins in exosomes derived from human ovarian f  ...[more]

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