trichostatin a (MedChemExpress)
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Trichostatin A, supplied by MedChemExpress, used in various techniques. Bioz Stars score: 97/100, based on 235 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Average 97 stars, based on 235 article reviews
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1) Product Images from "Mitotic chromatin compaction tethers extrachromosomal DNA to chromosomes and prevents their mis-segregation into micronuclei"
Article Title: Mitotic chromatin compaction tethers extrachromosomal DNA to chromosomes and prevents their mis-segregation into micronuclei
Journal: The Journal of Biological Chemistry
doi: 10.1016/j.jbc.2025.111081
Figure Legend Snippet: The prometaphase spread technique untethers ecDNA and chromosomes by decompacting mitotic chromatin. A , schematic of an ecDNA-containing cell undergoing mitosis (from left to right : prophase, metaphase, anaphase, telophase). Acentric ecDNA ( red ) have been observed to tether to or “hitchhike” on chromosomes ( blue ) during mitosis to ensure their proper segregation and inheritance by daughter cells. B , prometaphase spreads performed on colcemid-arrested COLO320DM cells with the conventional hypotonic solution (75 mM KCl) and higher osmolarity solutions (100 mM and 125 mM KCl), producing varying amounts of chromosome (DAPI, blue ) individualization and ecDNA ( MYC FISH, red ) untethering. C , quantification of panel B . Left : boxplots quantifying chromosome individualization in prometaphase spreads performed with varying solution osmolarity; from left to right , n = 3, 3, 3 biological replicates and 95, 92, 105 cells; one-way ANOVA, F = 100.7, p < 0.001; ∗∗ p < 0.01 by Tukey’s honestly significant difference (HSD), ns = not significant. Right : quantification of ecDNA untethering; one-way ANOVA, F = 48.3, p < 0.001. Chromosome individualization is represented by the number of connected components identified as chromosomes by ecSeg. ecDNA untethering is represented by the number of ecDNA unattached to chromosomes divided by the total number of ecDNA not completely surrounded by chromosomes. D , prometaphase spreads performed with incubation in 1× PBS using COLO320DM cells pretreated for 8 h with vehicle (0.1% DMSO) or varying concentrations of Trichostatin A (TSA). E , quantification of panel D . Left : quantification of chromosome individualization in prometaphase spreads performed with 1× PBS on cells pretreated with TSA; n = 3, 3, 3, 3, 3, 3 biological replicates and 88, 113, 96, 80, 76, 84 cells; one-way ANOVA, F = 38.5, p < 0.001; ∗∗ p < 0.01 by Tukey’s HSD, ns = not significant. Right : quantification of ecDNA untethering; one-way ANOVA, F = 166.5, p < 0.001. F , linear regression analysis of median chromosome individualization v er s us ecDNA untethering of prometaphase spread conditions in panels B – E (n = 9). G , schematic: electrostatic/hydrophobic mitotic compaction forces at the level of nucleosomes tether ecDNA ( red ) to mitotic chromosomes ( blue ). In panels B–E , scale bar = 10 μm and each data point in graphs represents one cell.
Techniques Used: Incubation