‘There and Back Again’—Forward Genetics and Reverse Phenotyping in Pulmonary Arterial Hypertension

Although the invention of right heart catheterisation in the 1950s enabled accurate clinical diagnosis of pulmonary arterial hypertension (PAH), it was not until 2000 when the landmark discovery of the causative role of bone morphogenetic protein receptor type II (<i>BMPR2</i>) mutations...

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Main Authors: Emilia M. Swietlik, Matina Prapa, Jennifer M. Martin, Divya Pandya, Kathryn Auckland, Nicholas W. Morrell, Stefan Gräf
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/11/12/1408
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author Emilia M. Swietlik
Matina Prapa
Jennifer M. Martin
Divya Pandya
Kathryn Auckland
Nicholas W. Morrell
Stefan Gräf
author_facet Emilia M. Swietlik
Matina Prapa
Jennifer M. Martin
Divya Pandya
Kathryn Auckland
Nicholas W. Morrell
Stefan Gräf
author_sort Emilia M. Swietlik
collection DOAJ
description Although the invention of right heart catheterisation in the 1950s enabled accurate clinical diagnosis of pulmonary arterial hypertension (PAH), it was not until 2000 when the landmark discovery of the causative role of bone morphogenetic protein receptor type II (<i>BMPR2</i>) mutations shed new light on the pathogenesis of PAH. Since then several genes have been discovered, which now account for around 25% of cases with the clinical diagnosis of idiopathic PAH. Despite the ongoing efforts, in the majority of patients the cause of the disease remains elusive, a phenomenon often referred to as “missing heritability”. In this review, we discuss research approaches to uncover the genetic architecture of PAH starting with forward phenotyping, which in a research setting should focus on stable intermediate phenotypes, forward and reverse genetics, and finally reverse phenotyping. We then discuss potential sources of “missing heritability” and how functional genomics and multi-omics methods are employed to tackle this problem.
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spelling doaj.art-296210f1893d40b089d2b306887e3b902023-11-20T22:27:50ZengMDPI AGGenes2073-44252020-11-011112140810.3390/genes11121408‘There and Back Again’—Forward Genetics and Reverse Phenotyping in Pulmonary Arterial HypertensionEmilia M. Swietlik0Matina Prapa1Jennifer M. Martin2Divya Pandya3Kathryn Auckland4Nicholas W. Morrell5Stefan Gräf6Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UKDepartment of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UKDepartment of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UKDepartment of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UKDepartment of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UKDepartment of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UKDepartment of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge CB2 0QQ, UKAlthough the invention of right heart catheterisation in the 1950s enabled accurate clinical diagnosis of pulmonary arterial hypertension (PAH), it was not until 2000 when the landmark discovery of the causative role of bone morphogenetic protein receptor type II (<i>BMPR2</i>) mutations shed new light on the pathogenesis of PAH. Since then several genes have been discovered, which now account for around 25% of cases with the clinical diagnosis of idiopathic PAH. Despite the ongoing efforts, in the majority of patients the cause of the disease remains elusive, a phenomenon often referred to as “missing heritability”. In this review, we discuss research approaches to uncover the genetic architecture of PAH starting with forward phenotyping, which in a research setting should focus on stable intermediate phenotypes, forward and reverse genetics, and finally reverse phenotyping. We then discuss potential sources of “missing heritability” and how functional genomics and multi-omics methods are employed to tackle this problem.https://www.mdpi.com/2073-4425/11/12/1408forward phenotypingforward geneticsreverse geneticsreverse phenotypingpulmonary arterial hypertensionintermediate phenotypes
spellingShingle Emilia M. Swietlik
Matina Prapa
Jennifer M. Martin
Divya Pandya
Kathryn Auckland
Nicholas W. Morrell
Stefan Gräf
‘There and Back Again’—Forward Genetics and Reverse Phenotyping in Pulmonary Arterial Hypertension
Genes
forward phenotyping
forward genetics
reverse genetics
reverse phenotyping
pulmonary arterial hypertension
intermediate phenotypes
title ‘There and Back Again’—Forward Genetics and Reverse Phenotyping in Pulmonary Arterial Hypertension
title_full ‘There and Back Again’—Forward Genetics and Reverse Phenotyping in Pulmonary Arterial Hypertension
title_fullStr ‘There and Back Again’—Forward Genetics and Reverse Phenotyping in Pulmonary Arterial Hypertension
title_full_unstemmed ‘There and Back Again’—Forward Genetics and Reverse Phenotyping in Pulmonary Arterial Hypertension
title_short ‘There and Back Again’—Forward Genetics and Reverse Phenotyping in Pulmonary Arterial Hypertension
title_sort there and back again forward genetics and reverse phenotyping in pulmonary arterial hypertension
topic forward phenotyping
forward genetics
reverse genetics
reverse phenotyping
pulmonary arterial hypertension
intermediate phenotypes
url https://www.mdpi.com/2073-4425/11/12/1408
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