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Comment
. 2020 May 11;4(5):95-98.
doi: 10.15698/cst2020.05.219.

HIF1α or mitophagy: which drives cardiomyocyte differentiation?

Affiliations
Comment

HIF1α or mitophagy: which drives cardiomyocyte differentiation?

Beatriz Villarejo-Zori et al. Cell Stress. .
No abstract available

Keywords: HIFα; NIX; cardiomyocyte; differentiation; glycolisis; mitophagy.

PubMed Disclaimer

Conflict of interest statement

Conflict of interest: No conflict of interest to disclose.

Figures

Figure 1
Figure 1. FIGURE 1: NIX accelerates cardiomyocyte differentiation.
Upregulation of HIF1α activity in response to a variety of stimuli, including hypoxia and developmental signalling, modulates the bioenergetic status of the cell by triggering receptor-mediated mitophagy. These changes allow for the increase in cellular glycolytic capacity necessary to provide energy to drive cardiomyocyte differentiation. Zhao et al. demonstrate that this process is dependent on HIF1α but not on NIX. However, NIX overexpression accelerates the glycolytic shift and leads to early differentiation as evidenced by increased levels of the cardiomyocyte markers MHC and troponin T.

Comment on

References

    1. Lopaschuk GD, Jaswal JS. Energy metabolic phenotype of the cardiomyocyte during development, differentiation, and postnatal maturation. J Cardiovasc Pharmacol. 2010;56(2):130–140. doi: 10.1097/FJC.0b013e3181e74a14. - DOI - PubMed
    1. De Carvalho AETS, Bassaneze V, Forni MF, Keusseyan AA, Kowaltowski AJ, Krieger JE. Early postnatal cardiomyocyte proliferation requires high oxidative energy metabolism. Sci Rep. 2017;7(1):15434. doi: 10.1038/s41598-017-15656-3. - DOI - PMC - PubMed
    1. Honkoop H, De Bakker DE, Aharonov A, Kruse F, Shakked A, Nguyen PD, Heus C, Garric L, Muraro MJ, Shoffner A, Tessadori F, Peterson JC, Noort W, Bertozzi A, Weidinger G, Posthuma G, Grün D, Laarse WJVD, Klumperman J, T Jaspers RT, Poss KD, Oudenaarden AV, Tzahor E, Bakkers J. Single-cell analysis uncovers that metabolic reprogramming by erbb2 signaling is essential for cardiomyocyte proliferation in the regenerating heart. Elife. 2019;8 doi: 10.7554/eLife.50163. - DOI - PMC - PubMed
    1. Esteban-Martínez L, Sierra-Filardi E, McGreal RS, Salazar-Roa M, Mariño G, Seco E, Durand S, Enot D, Graña O, Malumbres M, Cvekl A, Cuervo AM, Kroemer G, Boya P. Programmed mitophagy is essential for the glycolytic switch during cell differentiation. EMBO J. 2017;36(12):1688–1706. doi: 10.15252/embj.201695916. - DOI - PMC - PubMed
    1. Allen GF, Toth R, James J, Ganley IG. Loss of iron triggers PINK1/Parkin-independent mitophagy. EMBO Rep. 2013;14(12):1127–35. doi: 10.1038/embor.2013.168. - DOI - PMC - PubMed