6533b7d6fe1ef96bd1265a21

RESEARCH PRODUCT

Complement Component 3 expressed by the endometrial ectopic tissue is involved in the endometriotic lesion formation through mast cell activation

Sonia ZorzetPaolo MacorToffoli MUday KishoreBorelliAndrea BalduitAnna MartoranaBeatrice BelmonteGabriella ZitoRoberta BullaGiuseppe RicciFederico RomanoChiara AgostinisAlessandro Mangogna

subject

Tumor microenvironmentComplement component 3business.industryMast cell activationEndometriosismedicine.diseasePathophysiologyLesionPathogenesismedicine.anatomical_structurePeritoneumCancer researchmedicinemedicine.symptombusiness

description

AbstractThe pathophysiology of endometriosis (EM) is an excellent example of immune dysfunction, reminiscent of tumor microenvironment as well. Here, we report that an interplay between C3 and mast cells (MCs) is involved in the pathogenesis of ectopic EM. C3 is at the epicenter of the regulatory feed forward loop, amplifying the inflammatory microenvironment, in which the MCs are protagonists. Thus, C3 can be considered a marker of EM and its local synthesis can promote the engraftment of the endometriotic cysts. We generated a murine model of EM via injection of minced uterine tissue from a donor mouse, into the peritoneum of the recipient mice. The wild type mice showed greater amount of cyst formation in the peritoneum compared to C3 knock-out mice. This study offers an opportunity for novel therapeutic intervention in EM, a difficult to treat gynecological condition.SummaryC3 produced by the endometriotic tissue is involved in the lesion development through mast cell activation

https://doi.org/10.1101/2020.11.19.389536