- Poster presentation
- Open Access
Variants of PBEF predispose to systemic sclerosis and pulmonary arterial hypertension development
Journal of Translational Medicine volume 8, Article number: P46 (2010)
Pre B-cell colony-enhancing factor (PBEF) is intricately involved in inflammation and fibrosis, functional polymorphisms of PBEF have been previously shown to influence PBEF expression and pulmonary damage. Systemic sclerosis (SSc) is a disease in which inflammation, fibrosis and pulmonary deterioration are prominent hallmarks. Therefore we here investigate the role of the PBEF -1001T>G and PBEF -1543C>T polymorphisms in the genetic predisposition to systemic sclerosis (SSc) susceptibility and pulmonary involvement.
Patients and methods
We genotyped DNA from 2737 SSc patients and 1913 matched healthy controls, both from 8 different ethnic populations. Genotyping was performed using custom Taqman 5´allelic discrimination assays. In addition, PBEF serum expression levels were measured by ELISA and correlated with genotypes.
In two separate populations and in a meta-analysis, the combined PBEF -1543CC -1001TT genotype, hence carrying no minor alleles, was found associated with SSc susceptibility (P=0.009 OR 1.20 (95% CI 1.05-1.37). In addition, these subjects showed an increased decline in forced vital capacity (FVC) over 15 years follow-up (P=0.02) (HR 1.64, 95%CI: 1.02-2.64) and a higher PBEF serum concentration (P<0.01), compared to carriers of minor alleles. On the other hand, patients with genotype PBEF -1001TT were at lower risk for PAH development within 15 years of disease onset compared to the carriers with genotypes PBEF-1001GG and PBEF-1001TG (P<0.001) (HR 3.29, 95%CI: 1.52-7.12).
Our data identify PBEF as a novel candidate gene that influences SSc susceptibility, pulmonary function and the development of PAH.
JCA Broen, P Gourh, M C Vonk, F C Arnett, J Martin and TRDJ Radstake contributed equally to this work.
About this article
Cite this article
Broen, J., Gourh, P., Vonk, M.C. et al. Variants of PBEF predispose to systemic sclerosis and pulmonary arterial hypertension development. J Transl Med 8, P46 (2010). https://doi.org/10.1186/1479-5876-8-S1-P46
- Pulmonary Arterial Hypertension
- Minor Allele
- Forced Vital Capacity
- Systemic Sclerosis
- Functional Polymorphism