PTP1B in obesity-related cardiovascular function

Pimonrat Ketsawatsomkron, David W. Stepp, Eric J.Belin De Chantemèle

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Protein tyrosine phosphatase 1B (PTP1B), a molecular brake on leptin and insulin signaling pathways, is an important regulator of metabolic functions. Due to the close proximity between the signaling pathways regulating the metabolic and the cardiovascular systems, it has been hypothesized that PTP1B might have a role in the control of cardiovascular functions in the context of metabolic disorders. Evidence from population-based studies demonstrates that polymorphisms of the human PTP1B gene, PTPN1, predispose to both type II diabetes and cardiovascular disease, including hypertension and atherosclerosis. Consistent with these findings, genetic deletion of PTP1B in lean and obese animal models has proven to be protective against obesity-induced hypertension and endothelial dysfunction. While both human and animals studies mostly support indirect effects of PTP1B on the cardiovascular system via its control of metabolic function, evidence from in vitro studies suggests direct effects of PTP1B on endothelial and vascular smooth muscle cell integrity. Taken together these data identify PTP1B as a major regulator of cardiovascular function and suggest that manipulation of PTP1B expression and activity could provide a novel therapeutic approach to prevent obesity-related cardiovascular disease.

Original languageEnglish (US)
Title of host publicationProtein Tyrosine Phosphatase Control of Metabolism
PublisherSpringer New York
Pages129-145
Number of pages17
ISBN (Electronic)9781461478553
ISBN (Print)1461478545, 9781461478546
DOIs
StatePublished - Apr 1 2013

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Non-Receptor Type 1 Protein Tyrosine Phosphatase
Obesity
Cardiovascular system
Cardiovascular System
Animals
Cardiovascular Diseases
Hypertension
Medical problems
Leptin
Metabolic Networks and Pathways
Polymorphism
Vascular Smooth Muscle
Brakes
Type 2 Diabetes Mellitus
Smooth Muscle Myocytes
Muscle
Atherosclerosis
Animal Models
Genes
Cells

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Ketsawatsomkron, P., Stepp, D. W., & De Chantemèle, E. J. B. (2013). PTP1B in obesity-related cardiovascular function. In Protein Tyrosine Phosphatase Control of Metabolism (pp. 129-145). Springer New York. https://doi.org/10.1007/978-1-4614-7855-3_7

PTP1B in obesity-related cardiovascular function. / Ketsawatsomkron, Pimonrat; Stepp, David W.; De Chantemèle, Eric J.Belin.

Protein Tyrosine Phosphatase Control of Metabolism. Springer New York, 2013. p. 129-145.

Research output: Chapter in Book/Report/Conference proceedingChapter

Ketsawatsomkron, P, Stepp, DW & De Chantemèle, EJB 2013, PTP1B in obesity-related cardiovascular function. in Protein Tyrosine Phosphatase Control of Metabolism. Springer New York, pp. 129-145. https://doi.org/10.1007/978-1-4614-7855-3_7
Ketsawatsomkron P, Stepp DW, De Chantemèle EJB. PTP1B in obesity-related cardiovascular function. In Protein Tyrosine Phosphatase Control of Metabolism. Springer New York. 2013. p. 129-145 https://doi.org/10.1007/978-1-4614-7855-3_7
Ketsawatsomkron, Pimonrat ; Stepp, David W. ; De Chantemèle, Eric J.Belin. / PTP1B in obesity-related cardiovascular function. Protein Tyrosine Phosphatase Control of Metabolism. Springer New York, 2013. pp. 129-145
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