Ahmed I. Mahmoud, PHD

Position title: Assistant Professor, Cell and Regenerative Biology

Email: aimahmoud@wisc.edu

WI Institutes for Medical Research
1111 Highland Ave
Madison, WI 53705

Organ System/Disease Focus:
Heart failure, ischemic heart disease, cardiac regeneration
Aligned Research Focus:
Mammalian cardiac regeneration
Ahmed Mahmoud headshot


More Information:

Research Description:

Heart failure is the leading cause of death in the world due to the inability of the adult mammalian heart to regenerate following injury. Lower vertebrates, such as zebrafish are capable of complete and efficient regeneration of the myocardium following injury. Similarly, we demonstrated that neonatal mice are capable of regenerating their hearts within a short period after birth but lose this potential in the first week of life. Adult mammals lack this cardiac regeneration potential, thus our overarching goal in the laboratory is to dissect the molecular underpinnings of regeneration in the neonatal heart so that we can explore potential avenues to activate this process in adult humans.

Our goals are to identify the transcriptional and epigenetic networks that govern cardiomyocyte dedifferentiation and proliferation during regeneration. These studies could aid in converting adult cardiomyocytes to a more proliferative and regenerative state. In addition, we aim to identify the microenvironment signals that regulate mammalian heart regeneration by studying the interplay of nerves as well as extracellular factors during mammalian heart regeneration. We use multidisciplinary approaches including genomics, proteomics, and mouse genetics in addition to molecular and cellular technologies to address these questions.

Selected References:

  • Salamon, R.J., Mahmoud, A.I.. Bridging the communication gap: cardiomyocytes reciprocate sympathetic nerve signalling. Journal of Physiology, 2022 May 25.
  • Bae, J., Paltzer, W.G., Mahmoud, A.I.. The role of metabolism in heart failure and regeneration. Frontiers in Cardiovascular Medicine, 2021 Jul 16;8:702920.
  • Tampakakis, E. *, Mahmoud, A.I.*. The role of hormones and neurons in cardiomyocyte maturation. Seminars in Cell & Developmental Biology, 2021 Oct;118:136-143. (*co-corresponding authors).
  • Bae, J., Salamon, R.J., Brandt, E.B., Paltzer, W.G., Zhang, Z., Britt, E.C., Hacker, T.A., Fan, J., Mahmoud, A.I.. Malonate Promotes Adult Cardiomyocyte Proliferation and Heart Regeneration. Circulation, 2021 May 18;143(20):1973-1986.
  • Salamon, R.J., Zhang, Z., Mahmoud, A.I.. Capturing the Cardiac Injury Response of Targeted Cell Populations via Cleared Heart Three-Dimensional Imaging. Journal of Visualized Experiments, 2020 Mar 17; (157).