Journal: bioRxiv
Article Title: Sex does not Influence Neuronal Autophagy throughout Aging in Mice
doi: 10.1101/2025.01.16.633428
Figure Lengend Snippet: (A) Schematic of autophagosome biogenesis pathway, highlighting the elongation complex. (B-C) Representative micrographs of DRG neurons transiently expressing mCh-ATG5 from female (B) and male (C) young adult mice. Arrows indicate mCh-ATG5 puncta. Scale bars, 2 μm. (D) Quantification of the rate of mCh-ATG5 puncta formation in live-cell imaging of DRG neurons (median ± quartiles; n ≥ 22 neurons from three biological replicates of each sex). ns, not significant by unpaired t tests (p > 0.39). (E) Immunoblots of DRG lysates from young, young adult, aged, and advanced aged mice of both sexes (n= 3 biological replicates for each sex at each age. Total protein was used as a loading control; normalization factor is indicated below each blot as a percentage. (F-G) Quantification of protein levels of immunoblots in (E), normalized to total protein and represented as a fold change relative to the mean for lysates from young mice (mean ± sem). ns, not significant by two-way ANOVA with Šídák’s multiple comparisons test. (H) Immunoblots of brain lysates from young, young adult, aged, and advanced aged mice of both sexes (n= 3 biological replicates for each sex at each age. Total protein was used as a loading control; normalization factor is indicated below each blot as a percentage. (I-J) Quantification of protein levels of immunoblots in (H), normalized to total protein and represented as a fold change relative to the mean for lysates from young mice (mean ± sem). ns, not significant; **p < 0.005 by two-way ANOVA with Šídák’s multiple comparisons test.
Article Snippet: Constructs used include: mCherry-ATG13 (subcloned from Addgene, 22875; deposited by Noboru Mizushima), mCherry-ATG5 (Addgene 13095), Halo-ATG14L (subcloned from Addgene, 21635; deposited by Tamotsu Yoshimori), SNAP-WIPI1A (subcloned from Addgene 38272), Halo-DFCP1 (subcloned from Addgene 38269), and Halo-WIPI2B (subcloned from GFP-WIPI2B ( )), all previously published in ( ; ).
Techniques: Expressing, Live Cell Imaging, Western Blot, Control