- Title
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Live cell screening platform identifies PPAR? as a regulator of cardiomyocyte proliferation and cardiac repair
- Authors
- Magadum, A., Ding, Y., He, L., Kim, T., Vasudevarao, M.D., Long, Q., Yang, K., Wickramasinghe, N., Renikunta, H.V., Dubois, N., Weidinger, G., Yang, Q., Engel, F.B.
- Source
- Full text @ Cell Res.
PPAR? activity is required for adult cardiomyocyte cell cycle activity after injury in zebrafish. (A) Representative images of cryoinjured zebrafish hearts (7 dpi) treated with DMSO (control) or 5 ?M PPAR? inhibitor (GSK3787), stained for PCNA (green) and the cardiomyocyte marker Mef2 (red). Nuclei were visualized using DAPI (blue). Dashed lines highlight the wound border zone used for quantification. Scale bar = 150 ?m. (B) Quantitative analysis of PCNA-positive cardiomyocytes (DMSO: n = 9 hearts; GSK3787: n = 10 hearts; ***P < 0.001). |
PPARδ activity is required for adult cardiomyocyte proliferation in regenerating zebrafish hearts. (A) Representative images of cryoinjured myl7:GFPtwu34TG transgenic zebrafish showing GFP (green) in cardiomyocytes stained for H3P (red). Nuclei were visualized by staining DNA with DAPI (blue). (B) Quantitative analysis of H3P-positive cardiomyocytes (DMSO: n = 6 hearts; GSK3787: n = 7 hearts; *P < 0.05) |