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Conditioned Medium Derived From Seminal Extracellular Vesicles-Exposed Endometrial Stromal Cells Induces Inflammatory Cytokine Secretion by Macrophages Publisher Pubmed



Paktinat S1 ; Esfandyari S2 ; Karamian A1 ; Koochaki A3 ; Asadirad A4 ; Ghaffari Novin M1 ; Mohammadiyeganeh S3, 5 ; Salehpour S6 ; Hashemi SM7, 8, 9 ; Nazarian H1, 10
Authors
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Authors Affiliations
  1. 1. Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  5. 5. Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  6. 6. Department of Obstetrics and Gynecology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  7. 7. Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  8. 8. Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  9. 9. Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  10. 10. Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Source: European Journal of Obstetrics and Gynecology and Reproductive Biology Published:2021


Abstract

Objective: Seminal plasma (SP) contains large numbers of sub-cellular structures called extracellular vesicles (EV) which have been postulated to have immunological functions due to their bioactive contents including proteins and small non-coding RNAs. Although the response of endometrial cells to seminal EV (SEV) is recently being elucidated, the impact of these signaling vesicles on stroma-immune crosstalk is still unknown. Herein, we aimed to investigate the effect of conditioned medium (CM) derived from SEV-exposed endometrial stromal cells (eSC) on cytokine secretion by macrophages. Study design: SEV were isolated from SP samples of healthy donors and characterized by common methods needed for EV characterization, including size determination by dynamic light scattering (DLS), transmission electron microscopy (TEM), and western blot analysis of EV markers. Endometrial biopsies were obtained from healthy individuals and eSC were isolated and characterized. EV internalization assay was performed by labeling the SEV with PKH67 green fluorescent dye. Then, the eSC were exposed to SEV and the CM was collected. Finally, the CM from SEV-exposed eSC was added to the macrophage culture and the level of inflammatory (interleukin (IL)-1α and IL-6) and anti-inflammatory (IL-10) cytokines were measured in the culture supernatant of macrophages. Results: The results demonstrated that the CM derived from SEV-exposed eSC induce IL-1α and IL-6 secretion by the macrophages, while the secretion of IL-10 was reduced. Conclusion: Our results support the idea that the stroma-immune interaction is affected by SEV. This effect may be a part of immunoregulatory function of SP inside upper female genital tract and have an obvious impact during peri-implantation period. © 2021
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