Journal: Cell & Bioscience
Article Title: PINK1 functions in mitophagy and mitochondrial homeostasis during mice oocyte maturation
doi: 10.1186/s13578-025-01460-4
Figure Lengend Snippet: RAB8A activity is essential for murine oocyte quality in advanced maternal age. (A) The effects of advanced maternal age on RAB8A protein level. (B) The effects of advanced maternal age on PRKN protein level. (C) Western blotting with anti-Myc showed that Rab8a - T22N-Myc and Rab8a - Q67L-Myc were efficiently overexpressed. (D) Ultrastructure observation of Young, Old, Old + Rab8a - WT, Old + Rab8a - T22N, Old + Rab8a - Q67L oocytes. Mitophagosomes (red arrows), healthy mitochondria (white arrows), damaged mitochondria (blue arrows). (E) Number of mitophagosomes per cell section in Young, Old, Old + Rab8a – WT, Old + Rab8a – T22N, Old + Rab8a – Q67L oocytes (1.07 ± 0.21; 1.13 ± 0.17; 1.23 ± 0.34; 1.10 ± 0.16; 2.13 ± 0.21, respectively ). Bar graphs are mean ± SD of results from 3 oocytes section. Bars: 500 nm. (The bars labeled with completely different letters indicate significant difference at P < 0.05). (F) A proposed model showing the potential pathway that RAB8A activity is involved in PINK1-PRKN mediated mitophagy in oocytes
Article Snippet: Rabbit monoclonal anti-γH2AX antibody (Cat#: ab81299), rabbit monoclonal anti-RAB8A antibody (Cat#: ab188574), mouse monoclonal anti-Myc antibody (Cat#: ab18185) were purchased from Abcam (Cambridge, UK); rabbit polyclonal anti-PINK1 antibody (Cat#: PA5-85243) was obtained from Thermo Fisher Scientific (Thermo Fisher Scientific, USA); mouse monoclonal- FITC-conjugated anti-α-Tubulin antibody (Cat#: F2168) was bought from Sigma (St. Louis, MO, USA); rabbit polyclonal antibodies anti-LC3 antibody (Cat#: 14600-1-AP), mouse-Monoclonal antibody (Cat#: 60004-1-Ig), rabbit polyclonal antibody anti-α-Tubulin antibody (Cat#: 11224-1-AP) were purchased from Proteintech (Wuhan, China); mouse monoclonal antibody anti-PRKN antibody (Cat#: sc-32282) was obtained from Santa Cruz Biotechnologies (Santa Cruz, CA).
Techniques: Activity Assay, Western Blot, Labeling