» Articles » PMID: 24292273

EIF2AK4 Mutations Cause Pulmonary Veno-occlusive Disease, a Recessive Form of Pulmonary Hypertension

Abstract

Pulmonary veno-occlusive disease (PVOD) is a rare and devastating cause of pulmonary hypertension that is characterized histologically by widespread fibrous intimal proliferation of septal veins and preseptal venules and is frequently associated with pulmonary capillary dilatation and proliferation. PVOD is categorized into a separate pulmonary arterial hypertension-related group in the current classification of pulmonary hypertension. PVOD presents either sporadically or as familial cases with a seemingly recessive mode of transmission. Using whole-exome sequencing, we detected recessive mutations in EIF2AK4 (also called GCN2) that cosegregated with PVOD in all 13 families studied. We also found biallelic EIF2AK4 mutations in 5 of 20 histologically confirmed sporadic cases of PVOD. All mutations, either in a homozygous or compound-heterozygous state, disrupted the function of the gene. These findings point to EIF2AK4 as the major gene that is linked to PVOD development and contribute toward an understanding of the complex genetic architecture of pulmonary hypertension.

Citing Articles

Pulmonary Hypertension: Molecular Mechanisms and Clinical Studies.

Adu-Amankwaah J, You Q, Liu X, Jiang J, Yang D, Liu K MedComm (2020). 2025; 6(3):e70134.

PMID: 40066229 PMC: 11892029. DOI: 10.1002/mco2.70134.


Precision Medicine for Pulmonary Vascular Disease: The Future Is Now (2023 Grover Conference Series).

Forbes L, Bauer N, Bhadra A, Bogaard H, Choudhary G, Goss K Pulm Circ. 2025; 15(1):e70027.

PMID: 39749110 PMC: 11693987. DOI: 10.1002/pul2.70027.


Synchrotron-Based Phase-Contrast Micro-CT Combined With Histology to Decipher Differences Between Hereditary and Sporadic Pediatric Pulmonary Veno-Occlusive Disease.

Jeremiasen I, Peruzzi N, Lampei E, Meyer S, Akyurek L, Gebre-Medhin E Pulm Circ. 2024; 14(4):e70024.

PMID: 39678731 PMC: 11638014. DOI: 10.1002/pul2.70024.


Marginal interaction test for detecting interactions between genetic marker sets and environment in genome-wide studies.

Shen L, Amei A, Liu B, Xu G, Liu Y, Oh E G3 (Bethesda). 2024; 15(1.

PMID: 39538414 PMC: 11708225. DOI: 10.1093/g3journal/jkae263.


Survival outcomes in EIF2AK4 mutation-associated pulmonary arterial hypertension: seeking clarity in contrast.

Han J, Kadani Z, Price L, Kempny A, Rawal B, Wort S Eur Heart J Case Rep. 2024; 8(11):ytae538.

PMID: 39502262 PMC: 11536062. DOI: 10.1093/ehjcr/ytae538.


References
1.
Chan M, Nguyen P, Davis B, Ohoka N, Hayashi H, Du K . A novel regulatory mechanism of the bone morphogenetic protein (BMP) signaling pathway involving the carboxyl-terminal tail domain of BMP type II receptor. Mol Cell Biol. 2007; 27(16):5776-89. PMC: 1952124. DOI: 10.1128/MCB.00218-07. View

2.
Humbert M, Sitbon O, Chaouat A, Bertocchi M, Habib G, Gressin V . Pulmonary arterial hypertension in France: results from a national registry. Am J Respir Crit Care Med. 2006; 173(9):1023-30. DOI: 10.1164/rccm.200510-1668OC. View

3.
Simonneau G, Robbins I, Beghetti M, Channick R, Delcroix M, Denton C . Updated clinical classification of pulmonary hypertension. J Am Coll Cardiol. 2009; 54(1 Suppl):S43-S54. DOI: 10.1016/j.jacc.2009.04.012. View

4.
Wang K, Li M, Hakonarson H . ANNOVAR: functional annotation of genetic variants from high-throughput sequencing data. Nucleic Acids Res. 2010; 38(16):e164. PMC: 2938201. DOI: 10.1093/nar/gkq603. View

5.
Abecasis G, Cherny S, Cookson W, Cardon L . Merlin--rapid analysis of dense genetic maps using sparse gene flow trees. Nat Genet. 2001; 30(1):97-101. DOI: 10.1038/ng786. View