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mTOR signalling pathway in stem cell bioactivities and angiogenesis potential

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CELL PROLIFERATION
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WILEY
DOI: 10.1111/cpr.13499

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The protein kinase called mammalian target of rapamycin (mTOR) responds to various stimuli and can influence cell growth, metabolism, and other bioactivities. This study explores the relationship between the mTOR signaling pathway and the regenerative potential of stem cells, particularly in terms of angiogenesis. The findings suggest that modulating mTOR signaling pathways could be an effective strategy for manipulating the angiogenic properties of stem cells.
The mammalian target of rapamycin (mTOR) is a protein kinase that responds to different stimuli such as stresses, starvation and hypoxic conditions. The modulation of this effector can lead to the alteration of cell dynamic growth, proliferation, basal metabolism and other bioactivities. Considering this fact, the mTOR pathway is believed to regulate the diverse functions in several cell lineages. Due to the pleiotropic effects of the mTOR, we here, hypothesize that this effector can also regulate the bioactivity of stem cells in response to external stimuli pathways under physiological and pathological conditions. As a correlation, we aimed to highlight the close relationship between the mTOR signalling axis and the regenerative potential of stem cells in a different milieu. The relevant publications were included in this study using electronic searches of the PubMed database from inception to February 2023. We noted that the mTOR signalling cascade can affect different stem cell bioactivities, especially angiogenesis under physiological and pathological conditions. Modulation of mTOR signalling pathways is thought of as an effective strategy to modulate the angiogenic properties of stem cells.

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