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Protein tyrosine phosphatases in skeletal development and diseases 被引量:4

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摘要 Skeletal development and homeostasis in mammals are modulated by finely coordinated processes of migration, proliferation,differentiation, and death of skeletogenic cells originating from the mesoderm and neural crest. Numerous molecular mechanisms are involved in these regulatory processes, one of which is protein posttranslational modifications, particularly protein tyrosine phosphorylation(PYP). PYP occurs mainly through the action of protein tyrosine kinases(PTKs), modifying protein enzymatic activity, changing its cellular localization, and aiding in the assembly or disassembly of protein signaling complexes. Under physiological conditions, PYP is balanced by the coordinated action of PTKs and protein tyrosine phosphatases(PTPs).Dysregulation of PYP can cause genetic, metabolic, developmental, and oncogenic skeletal diseases. Although PYP is a reversible biochemical process, in contrast to PTKs, little is known about how this equilibrium is modulated by PTPs in the skeletal system.Whole-genome sequencing has revealed a large and diverse superfamily of PTP genes(over 100 members) in humans, which can be further divided into cysteine(Cys)-, aspartic acid(Asp)-, and histidine(His)-based PTPs. Here, we review current knowledge about the functions and regulatory mechanisms of 28 PTPs involved in skeletal development and diseases;27 of them belong to class Ⅰ and Ⅱ Cys-based PTPs, and the other is an Asp-based PTP. Recent progress in analyzing animal models that harbor various mutations in these PTPs and future research directions are also discussed. Our literature review indicates that PTPs are as crucial as PTKs in supporting skeletal development and homeostasis.
出处 《Bone Research》 SCIE CAS CSCD 2022年第1期1-19,共19页 骨研究(英文版)
基金 by the NIH and the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) grants RO1AR066746 (W.Y.), R21AR079195 (W.Y.), and R21AR57156 (W.Y.) supported by the Rhode Island Hospital Orthopedic Foundation
关键词 HARBOR SUPPORTING WHOLE
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