Journal: bioRxiv
Article Title: A Recombinant Antibody Against Human DRP1 Serine 616 Phosphorylation Enables Detection of BRAF V600E -Associated Mitochondrial Division in Cancer
doi: 10.64898/2026.01.16.699897
Figure Lengend Snippet: (A) SKMEL28 cells were treated with GSK1120212 (50 nM) for 16 hours, fixed, and stained for TOMM20 (green; mitochondria) and Hoechst 33342 (blue; nuclei). Scale bars = 10 microns. (B) SKMEL28 cells were studied as in A . Mitochondrial networks are shown as maximum intensity projections of super-resolution Leica LIGHTNING deconvolved confocal z-stacks. Imaris surface features were used to generate 3D projections to visualize changes in mitochondrial network architecture. Scales bars = 5 microns. (C) Mitochondrial elongation was quantified using the Perimeter:Area Ratio. (D–E) SKMEL28 cells were treated with GSK1120212 (50 nM) for 16 hours, fixed, and stained for TOMM20 (green), DRP1-S616Ⓟ (red), and Hoechst 33342 (blue). Red channel intensity was quantified to assess DRP1-S616Ⓟ signal intensity using Mander’s coefficient. Scale bars = 10 microns. Zoomed network images = 50 micron scale bars. (F–G) A375 cells were analyzed using the same treatment, staining, imaging, and quantification approach as panels D–E . All experiments were performed at least twice, with statistical significance determined from a minimum of two independent experiments using a one-way ANOVA test.
Article Snippet: A375 and SKMEL28 human-derived non-primary ( i.e., lymph node and secondary metastasis derived, respectively) melanoma lines were purchased from ATCC and cultured in DMEM media.
Techniques: Staining, Imaging