Channelopathy Genes in Pulmonary Arterial Hypertension

Pulmonary arterial hypertension (PAH) is a rare, progressive vasculopathy with significant cardiopulmonary morbidity and mortality. The underlying pathogenetic mechanisms are heterogeneous and current therapies aim to decrease pulmonary vascular resistance but no curative treatments are available. C...

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Main Authors: Carrie L. Welch, Wendy K. Chung
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Biomolecules
Subjects:
Online Access:https://www.mdpi.com/2218-273X/12/2/265
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author Carrie L. Welch
Wendy K. Chung
author_facet Carrie L. Welch
Wendy K. Chung
author_sort Carrie L. Welch
collection DOAJ
description Pulmonary arterial hypertension (PAH) is a rare, progressive vasculopathy with significant cardiopulmonary morbidity and mortality. The underlying pathogenetic mechanisms are heterogeneous and current therapies aim to decrease pulmonary vascular resistance but no curative treatments are available. Causal genetic variants can be identified in ~13% of adults and 43% of children with PAH. Knowledge of genetic diagnoses can inform clinical management of PAH, including multimodal medical treatment, surgical intervention and transplantation decisions, and screening for associated conditions, as well as risk stratification for family members. Roles for rare variants in three channelopathy genes—<i>ABCC8</i>, <i>ATP13A3</i>, and <i>KCNK3</i>—have been validated in multiple PAH cohorts, and in aggregate explain ~2.7% of PAH cases. Complete or partial loss of function has been demonstrated for PAH-associated variants in <i>ABCC8</i> and <i>KCNK3</i>. Channels can be excellent targets for drugs, and knowledge of mechanisms for channel mutations may provide an opportunity for the development of PAH biomarkers and novel therapeutics for patients with hereditary PAH but also potentially more broadly for all patients with PAH.
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spelling doaj.art-ea15d96bc1ad4e7a91438ad83a4145142023-11-23T18:59:09ZengMDPI AGBiomolecules2218-273X2022-02-0112226510.3390/biom12020265Channelopathy Genes in Pulmonary Arterial HypertensionCarrie L. Welch0Wendy K. Chung1Department of Pediatrics, Columbia University Irving Medical Center, New York, NY 10032, USADepartment of Pediatrics, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032, USAPulmonary arterial hypertension (PAH) is a rare, progressive vasculopathy with significant cardiopulmonary morbidity and mortality. The underlying pathogenetic mechanisms are heterogeneous and current therapies aim to decrease pulmonary vascular resistance but no curative treatments are available. Causal genetic variants can be identified in ~13% of adults and 43% of children with PAH. Knowledge of genetic diagnoses can inform clinical management of PAH, including multimodal medical treatment, surgical intervention and transplantation decisions, and screening for associated conditions, as well as risk stratification for family members. Roles for rare variants in three channelopathy genes—<i>ABCC8</i>, <i>ATP13A3</i>, and <i>KCNK3</i>—have been validated in multiple PAH cohorts, and in aggregate explain ~2.7% of PAH cases. Complete or partial loss of function has been demonstrated for PAH-associated variants in <i>ABCC8</i> and <i>KCNK3</i>. Channels can be excellent targets for drugs, and knowledge of mechanisms for channel mutations may provide an opportunity for the development of PAH biomarkers and novel therapeutics for patients with hereditary PAH but also potentially more broadly for all patients with PAH.https://www.mdpi.com/2218-273X/12/2/265channelopathygeneticslung diseasepulmonary arterial hypertension
spellingShingle Carrie L. Welch
Wendy K. Chung
Channelopathy Genes in Pulmonary Arterial Hypertension
Biomolecules
channelopathy
genetics
lung disease
pulmonary arterial hypertension
title Channelopathy Genes in Pulmonary Arterial Hypertension
title_full Channelopathy Genes in Pulmonary Arterial Hypertension
title_fullStr Channelopathy Genes in Pulmonary Arterial Hypertension
title_full_unstemmed Channelopathy Genes in Pulmonary Arterial Hypertension
title_short Channelopathy Genes in Pulmonary Arterial Hypertension
title_sort channelopathy genes in pulmonary arterial hypertension
topic channelopathy
genetics
lung disease
pulmonary arterial hypertension
url https://www.mdpi.com/2218-273X/12/2/265
work_keys_str_mv AT carrielwelch channelopathygenesinpulmonaryarterialhypertension
AT wendykchung channelopathygenesinpulmonaryarterialhypertension