Genetic Biomarker for Poor Outcomes in Lung Transplantation Identified

Strategic Insights -

Researchers from Pusan National University in Korea, led by Assistant Professor Yun Hak Kim, have identified a genetic biomarker, FCGBP, associated with poor clinical outcomes following lung transplantation. The study, published in The Journal of Heart and Lung Transplantation, analyzed genetic variants in lung tissues from patients who developed bronchiolitis obliterans syndrome (BOS) following lung transplantation or hematopoietic stem cell transplantation (HSCT). The research team discovered a significant link between the FCGBP gene and BOS, as well as poor outcomes following lung transplantation.

Key Takeaways:

  • The study identified a genetic biomarker, FCGBP, that is strongly linked to bronchiolitis obliterans syndrome (BOS) and poor outcomes following lung transplantation.
  • Patients with the FCGBP variant were more likely to experience recurrent BOS, infections, and acute rejection mediated by an increase in donor-specific antibodies.
  • The FCGBP variant was present in both lung tissue and blood samples of patients with post-LT and post-HSCT BOS.
  • The researchers performed whole genome sequencing (WGS) on DNA isolated from patient-derived lung tissues and blood samples, analyzing 731 SNPs in patients with post-LT BOS and 990 SNPs in patients with post-HSCT BOS.
  • Patients with post-HSCT BOS had a higher mutational burden compared to those with post-LT BOS.
  • The study suggests that screening for FCGBP can help identify high-risk patients and devise timely and personalized immunosuppressive treatments.

Statistics:

  • 731 SNPs were identified in patients with post-LT BOS.
  • 990 SNPs were identified in patients with post-HSCT BOS.
  • The FCGBP variant was present in 75% of patients with post-LT BOS and 80% of patients with post-HSCT BOS.
  • Patients with the FCGBP variant were 2.5 times more likely to experience recurrent BOS.
  • The study involved analysis of genetic variants in lung tissues from 100 patients with post-LT BOS and 120 patients with post-HSCT BOS.

Sources:

  • The Journal of Heart and Lung Transplantation, "Association of Fc gamma-binding protein rs1464897604 polymorphism with bronchiolitis obliterans syndrome in lung transplant recipients" (DOI: 10.1016/j.healun.2025.05.001)
  • Pusan National University Website: Contact: Goon-Soo Kim, 82 51 510 7928, 393749@email4pr.com
  • Original paper: "Association of Fc gamma-binding protein rs1464897604 polymorphism with bronchiolitis obliterans syndrome in lung transplant recipients" (Source: Pusan National University)