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Title

Phosphoinositide signaling and mechanotransduction in cardiovascular biology and disease

AuthorsKrajnik, Amanda; Brazzo III, Joseph A.; Vaidyanathan, Kalyanaraman; Das, Tuhin; Redondo-Muñoz, Javier ; Bae, Yongho
KeywordsPhosphoinositides
Cardiovascular mechanotransduction
Actin cytoskeleton
Ion channel
Focal adhesion
PIP2
PIP3
PI3K
Issue Date14-Dec-2020
PublisherFrontiers Media
CitationFrontiers in Cell and Developmental Biology 8:595849 (2020)
AbstractPhosphoinositides, which are membrane-bound phospholipids, are critical signaling molecules located at the interface between the extracellular matrix, cell membrane,and cytoskeleton. Phosphoinositides are essential regulators of many biological and cellular processes, including but not limited to cell migration, proliferation, survival, and differentiation, as well as cytoskeletal rearrangements and actin dynamics. Over theyears, a multitude of studies have uniquely implicated phosphoinositide signaling as being crucial in cardiovascular biology and a dominant force in the development of cardiovascular disease and its progression. Independently, the cellular transduction of mechanical forces or mechanotransduction in cardiovascular cells is widely accepted to be critical to their homeostasis and can drive aberrant cellular phenotypes and resultant cardiovascular disease. Given the versatility and diversity of phosphoinositide signaling in the cardiovascular system and the dominant regulation of cardiovascular cell functions by mechanotransduction, the molecular mechanistic overlap and extent to which these two major signaling modalities converge in cardiovascular cells remain unclear. In this review, we discuss and synthesize recent findings that rightfully connect phosphoinositide signaling to cellular mechanotransduction in the context of cardiovascular biology and disease, and we specifically focus on phosphatidylinositol-4,5-phosphate, phosphatidylinositol-4-phosphate 5-kinase, phosphatidylinositol-3,4,5-phosphate, and phosphatidylinositol 3-kinase. Throughout the review, we discuss how specific phosphoinositide subspecies have been shown to mediate biomechanically sensitive cytoskeletal remodeling in cardiovascular cells. Additionally, we discuss the direct interaction of phosphoinositides with mechanically sensitive membrane-bound ion channels in response to mechanical stimuli. Furthermore, we explore the role of phosphoinositide subspecies in association with critical downstream effectors of mechanical signaling in cardiovascular biology and disease.
Description14 p.-3 fig.-1 tab.
Publisher version (URL)https://doi.org/10.3389/fcell.2020.595849
URIhttp://hdl.handle.net/10261/234194
DOI10.3389/fcell.2020.595849
E-ISSN2296-634X
Appears in Collections:(CIB) Artículos
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