Autophagy is upregulated in ovarian endometriosis: a possible interplay with p53 and heme oxygenase-1

Fertility and Sterility
Giulia AllavenaEmilia Maellaro

Abstract

To evaluate the occurrence of the autophagic process in ovarian endometriomas compared with eutopic endometrium of affected women and with normal endometrium of healthy women. Biochemical and molecular study in tissue extracts. University cellular pathology laboratory and university hospital. Patients with ovarian endometriosis (n = 13) and healthy women (n = 18). Specimens of endometrium were obtained by hysteroscopy from patients with endometriosis and from healthy control subjects; specimens of ovarian endometriomas were collected by laparoscopy. All patients underwent surgery after the end of menstrual bleeding, resulting in most of our patients (approximately 80% in each group) being in the proliferative phase. Autophagy was evaluated by Western blot analysis of biochemical markers (LC3-II, LC3-II/LC3-I ratio and p62) and by quantitative real-time polymerase chain reaction of autophagy-related genes (ATG14, BECN1, ATG7, and LC3B); apoptosis-related (p53 and Bcl-2) and oxidative stress-related (heme oxygenase-1) proteins were also evaluated by Western blot analysis. All tested biochemical markers and messenger RNA levels of autophagy-related genes showed a significant up-regulation of autophagy in ovarian endometriomas comp...Continue Reading

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