Protective effects of adipose-derived stem cells against testicular injury induced after ischemia-reperfusion by regulating autophagy.

Abstract

The damaged organ may experience severe pathological alterations as a result of tissue ischemia-reperfusion (I/R). The study of stem cell-based repair therapies is actively being conducted, and the outcomes and therapeutic potential of these cells are both promising. Autophagy checks protein homeostasis by breaking down huge damaged proteins or organelles. The study's objective was to assess how ADSCs impact the autophagic process after testicular ischemia/reperfusion. In our investigation, 30 male rats were divided into five groups: control, ADSC, ischemia, I/R, and I/R + ADSC (n = 6). Hematoxylin-eosin (HE) was used to stain the testes, and histological changes were assessed. The immunoexpression of androgen receptor (AR), Beclin1, protein light chain 3B (LC3B), and p62 were examined. The seminiferous epithelium in the testis from the ischemia and I/R groups revealed significant degeneration with disorganized morphology, damaged spermatogenic cells, and interstitial space congestion, according to HE stain results. Johnsen's score were significantly better in I/R + ADSC group than in ischemia and I/R groups. We demonstrated that in rat testes from the I/R groups, immunostaining of Beclin 1 (p = 0.042) and LC3B (p = 0.011) were raised, and p62 (p = 0.047) and AR (p = 0.049) were decreased. Ischemia and I/R promoted testicular autophagy, therefore we can conclude that ADSCs prevent excessive autophagy. Additionally, these results show that the use of ADSCs cures testicular injury and dysfunction associated with I/R injury in rats even a little.