Journal: bioRxiv
Article Title: Transcriptional activity generates chromatin motion that drives nuclear blebbing
doi: 10.1101/2025.05.20.655131
Figure Lengend Snippet: (A) Example images of wild type MEF nuclei with NLS-GFP and Cy3-dUTP used for tracking chromatin motion. Example Trackmate tracks for all measured chromatin foci domain motion tracked and example single chromatin domain foci track for untreated control (UNT, black), RNA Pol II inhibition (AAM, green), serum starved (orange), and serum add back (purple). (B) Mean squared displacement (MSD) plots of UNT, AAM, serum starved, and serum add back of >8 foci averaged per nucleus over 75 seconds, which is half of full tracking of 150 seconds, with 20 nuclei per condition, except AAM with 10 nuclei. (C) Three example mean squared displacement (MSD) plots of the same nucleus serum starved (orange) and serum added back (purple) of >8 foci averaged per nucleus over 75 seconds, which is half of full tracking of 150 seconds, for 3 nuclei. Serum starved and serum add back are paired measurements of the same nucleus before and after serum re-addition. Error bars represent standard error and statistical tests are one-way ANOVA with a post-hoc Tukey test except panel C Two-tailed paired Student’s T-test, with significance denoted by *= p<0.05, **= p<0.01, and ***=p<0.001. Scale bar =10µm.
Article Snippet: Chromatin motion tracking was achieved using both Nikon NIS Elements the FIJI plugin Trackmate.
Techniques: Control, Inhibition, Two Tailed Test