1. Fig. 2. BET inhibition enhances PARPi-induced DNA damage.
BET inhibition enhances PARPi-induced DNA damage. (A) DNA damage in MDA-MB-231, OVCAR10, and VCaP cells treated with DMSO, JQ1, olaparib, or JQ1 combined with olaparib, measured by the comet assay. Scale bars, 10 μm. (B) Extent of DNA damage, quantified by the tail moment in the comet assay. Statistical analysis by Student’s t test, *P < 0.05; n = 3. Bars represent mean values of tail moment. (C) Representative images of γH2AX foci in MDA-MB-231, OVCAR10, and VCaP cells treated with DMSO, JQ1, olaparib, or JQ1 combined with olaparib. Scale bars, 10 μm. DAPI, 4′,6-diamidino-2-phenylindole. (D) Quantification of the number of γH2AX-positive foci in MDA-MB-231, OVCAR10, and VCaP cells treated with DMSO, JQ1, olaparib, or JQ1 combined with olaparib. Statistical analysis by Student’s t test, *P < 0.05; n = 3. Error bars represent means ± SD. (E) Western blot analysis of γH2AX in MDA-MB-231, OVCAR10, and VCaP cells treated with DMSO, JQ1, olaparib, or JQ1 combined with olaparib.
Lu Yang et al., Sci Transl Med 2017;9:eaal1645
Published by AAAS