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. 2023 Mar 29;14:1753. doi: 10.1038/s41467-023-37408-w

Fig. 5. BRDT inhibition with the small molecule, JQ1, results in altered Pol II pause-release.

Fig. 5

a Schematic of experimental design for inhibition of BRDT with the small molecule, JQ1. 7-week-old male mice were injected intraperitoneally (i.p.) with JQ1 or vehicle solution daily for 3 weeks. Created with BioRender.com. b, c Immunolocalization of SYCP3 (green) and Ser5P (b) and Ser2P (c) (magenta) in pachytene (top) and diplotene (bottom) spermatocytes from JQ1-treated and vehicle-treated male mice. The X and Y chromosomes are enclosed within white dotted circles. d, e Quantification of signal intensity for Ser5P and Ser2P immunofluorescence staining of pachytene (left) and diplotene (right) cells from JQ1 and vehicle-treated male mice. Average intensity is shown, and error bars represent the standard deviation. Samples were obtained from three biological replicates. Arb. units = arbitrary units. Source data are provided as a Source data file. d n = 66 vehicle-treated and 160 JQ1-treated pachytene spermatocytes; n = 29 vehicle-treated and 80 JQ1-treated diplotene spermatocytes. e n = 34 vehicle-treated and 148 JQ1-treated pachytene spermatocytes; n = 19 control and 66 JQ1-treated diplotene spermatocytes. ****p-value <0.0001, Mann–Whitney U test.