Tag: myocardial infarction

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BMP7 as a Key to Heart Regeneration: Our Progress

We are thrilled to announce our latest publication in Cell Reports! Our research indicates that a decrease in the production of growth factors, particularly BMP7, during early postnatal development contributes to the loss of regenerative capacity of the mammalian heart.
We demonstrate that BMP7 supports cardiomyocyte proliferation during the neonatal stage, and its administration boosts cardiomyocyte proliferation in postnatal life, even in adulthood, and especially after myocardial infarction. These findings suggest that BMP7 administration holds promise as a therapeutic approach for heart regeneration. Moreover, our study finds support from the zebrafish model, which naturally regenerates injured hearts. In this regard, inhibiting BMP7 impeded cardiomyocyte regeneration post-cardiac injury, while its induction accelerated the process. We believe our findings pave the way for heart regenerative therapies based on the administration of BMP7.
Congratulations to Chiara Bongiovanni for leading the project, and congratulations to the other lab team members Irene Del Bono, Carmen Miano, Stefano Boriati, Silvia Da Pra, Francesca Sacchi, Francesca Pontis, and Ilaria Petraroia for their help and support in experimental activities. We express our gratitude to collaborators who were instrumental in the success of this project, particularly the research groups led by Eldad Tzahor(Weizmann Institute of Science, Israel), Gilbert Weidinger (University of Ulm, Germany), Stephan Heermann (University of Friburg, Germany), Mattia Lauriola, and Carlo Ventura (University of Bologna, Italy).

Original Article Link (open access): https://dx.doi.org/10.1016/j.celrep.2024.114162

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Our publication (review) on “direct cardiogenesis” strategies for heart regeneration is online!

Is it possible to reawaken the intrinsic cardiac regenerative potential after major injuries, for example induced by myocardial infarction? We are happy to share our publication (review) on an emerging, promising and rapidly evolving approach for heart regeneration based on stimulating the proliferation of endogenous cardiac muscle cells.

Abstract:  Despite considerable efforts carried out to develop stem/progenitor cell-based technologies aiming at replacing and restoring the cardiac tissue following severe damages, thus far no strategies based on adult stem cell transplantation have been demonstrated to efficiently generate new cardiac muscle cells. Intriguingly, dedifferentiation, and proliferation of pre-existing cardiomyocytes and not stem cell differentiation represent the preponderant cellular mechanism by which lower vertebrates spontaneously regenerate the injured heart. Mammals can also regenerate their heart up to the early neonatal period, even in this case by activating the proliferation of endogenous cardiomyocytes. However, the mammalian cardiac regenerative potential is dramatically reduced soon after birth, when most cardiomyocytes exit from the cell cycle, undergo further maturation, and continue to grow in size. Although a slow rate of cardiomyocyte turnover has also been documented in adult mammals, both in mice and humans, this is not enough to sustain a robust regenerative process. Nevertheless, these remarkable findings opened the door to a branch of novel regenerative approaches aiming at reactivating the endogenous cardiac regenerative potential by triggering a partial dedifferentiation process and cell cycle re-entry in endogenous cardiomyocytes. Several adaptations from intrauterine to extrauterine life starting at birth and continuing in the immediate neonatal period concur to the loss of the mammalian cardiac regenerative ability. A wide range of systemic and microenvironmental factors or cell-intrinsic molecular players proved to regulate cardiomyocyte proliferation and their manipulation has been explored as a therapeutic strategy to boost cardiac function after injuries. We here review the scientific knowledge gained thus far in this novel and flourishing field of research, elucidating the key biological and molecular mechanisms whose modulation may represent a viable approach for regenerating the human damaged myocardium.

Go to the full article: : Bongiovanni C, Sacchi F, Da Pra S, Pantano E, Miano C, Morelli MB and D’Uva G. Reawakening the intrinsic cardiac regenerative potential: molecular strategies to boost dedifferentiation and proliferation of endogenous cardiomyocytes. Frontiers in Cardiovascular Medicine – Cardiovascular Biologics and Regenerative Medicine, 2021

#research #heart #regeneration #cardiomyocyte #proliferation #myocardialinfarction #duvalab

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D’Uva lab receives ERA-CVD grant award on cardiovascular disease

We are very happy to receive a research grant  “ERA-CVD Call 2016 for Transnational Research Projects on Cardiovascular Diseases” of European Union’s Horizon 2020 Framework Programme. This grant gives us the opportunity to establish our lab in Italy, in IRCCS MultiMedica (Milan)!

The project, in collaboration with Hubrecht Institute (Netherlands), Ulm University (Germany) and Weizmann Institute of Science (Israel), will investigate heart regeneration using a comparative approach between different species.

Ischemic heart disease, such as myocardial infarction, causes a massive loss of cardiomyocytes and leads to the formation of fibrotic scar tissue, resulting in impaired cardiac function and ultimately, heart failure. Recently, it has been demonstrated that myocardium is naturally regenerated in the human heart. However, the rate of replacement is too low to repair large areas of damaged myocardium. Stimulating the very low intrinsic proliferation rate of cardiomyocytes is a promising strategy for cardiac repair in patients with heart failure. To identify such repair signals, this project will use zebrafish, where cardiomyocyte regeneration occurs naturally, and mice, where it does not. Different possible reasons for the difference in the regenerative capacity of lower vertebrate versus mammals will be explored. The goal is to develop regenerative medicine strategies based on endogenous cardiomyocyte capacities.

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