PMID- 26967790 OWN - NLM STAT- MEDLINE DCOM- 20170719 LR - 20220330 IS - 1535-4970 (Electronic) IS - 1073-449X (Linking) VI - 194 IP - 5 DP - 2016 Sep 1 TI - De Novo DQ Donor-Specific Antibodies Are Associated with Chronic Lung Allograft Dysfunction after Lung Transplantation. PG - 596-606 LID - 10.1164/rccm.201509-1857OC [doi] AB - RATIONALE: Despite increasing evidence about the role of donor-specific human leukocyte antigen (HLA) antibodies in transplant outcomes, the incidence and impact of de novo donor-specific antibodies (dnDSA) after lung transplantation remains unclear. OBJECTIVES: To describe the incidence, characteristics, and impact of dnDSA after lung transplantation. METHODS: We investigated a single-center cohort of 340 lung transplant recipients undergoing transplant during 2008 to 2011. All patients underwent HLA-antibody testing quarterly pretransplant and at regular intervals over the first 24 months after transplant. The patients received modified immunosuppression depending on their pretransplant sensitization status. Risk factors for dnDSA development, as well as the associations of dnDSA with patient survival and chronic lung allograft dysfunction (CLAD), were determined using multivariable analysis. MEASUREMENTS AND MAIN RESULTS: The cumulative incidence of dnDSA was 47% at a median of 86 days (range, 44-185 d) after lung transplantation. Seventy-six percent of recipients with dnDSA had DQ-DSA. Male sex and the use of ex vivo lung perfusion were associated with an increased risk of dnDSA, whereas increased HLA-DQB1 matching was protective. DQ-dnDSA preceded or coincided with the diagnosis of CLAD in all cases. Developing dnDSA (vs. no dnDSA) was associated with a twofold increased risk of CLAD (hazard ratio, 2.04; 95% confidence interval, 1.13-3.69). This association appeared to be driven by the development of DQ-dnDSA. CONCLUSIONS: dnDSA are common after lung transplantation, with the majority being DQ DSA. DQ-dnDSA are associated with an increased risk of CLAD. Strategies to prevent or treat DQ-dnDSA may improve outcomes for lung transplant recipients. FAU - Tikkanen, Jussi M AU - Tikkanen JM AD - 1 Toronto Lung Transplant Program. FAU - Singer, Lianne G AU - Singer LG AUID- ORCID: 0000-0002-2693-8676 AD - 1 Toronto Lung Transplant Program. FAU - Kim, S Joseph AU - Kim SJ AD - 2 Division of Nephrology, Department of Medicine, and. FAU - Li, Yanhong AU - Li Y AD - 2 Division of Nephrology, Department of Medicine, and. FAU - Binnie, Matthew AU - Binnie M AD - 1 Toronto Lung Transplant Program. FAU - Chaparro, Cecilia AU - Chaparro C AD - 1 Toronto Lung Transplant Program. FAU - Chow, Chung-Wai AU - Chow CW AD - 1 Toronto Lung Transplant Program. FAU - Martinu, Tereza AU - Martinu T AD - 1 Toronto Lung Transplant Program. FAU - Azad, Sassan AU - Azad S AD - 1 Toronto Lung Transplant Program. FAU - Keshavjee, Shaf AU - Keshavjee S AD - 1 Toronto Lung Transplant Program. FAU - Tinckam, Kathryn AU - Tinckam K AD - 2 Division of Nephrology, Department of Medicine, and. AD - 3 HLA Laboratory, Laboratory Medicine Program, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Am J Respir Crit Care Med JT - American journal of respiratory and critical care medicine JID - 9421642 RN - 0 (HLA Antigens) RN - 0 (Immunosuppressive Agents) SB - IM CIN - Am J Respir Crit Care Med. 2016 Sep 1;194(5):534-5. PMID: 27585379 MH - Allografts/*immunology/statistics & numerical data MH - Bronchiolitis Obliterans/epidemiology/etiology/*immunology MH - Female MH - Graft Rejection/complications/epidemiology/*immunology MH - HLA Antigens/*immunology MH - Humans MH - Immunosuppressive Agents/administration & dosage MH - Kaplan-Meier Estimate MH - Lung/*immunology MH - Lung Transplantation/*adverse effects/statistics & numerical data MH - Male MH - Middle Aged MH - Ontario/epidemiology MH - Proportional Hazards Models MH - Retrospective Studies MH - Sex Distribution MH - *Tissue Donors OTO - NOTNLM OT - bronchiolitis obliterans syndrome OT - chronic lung allograft dysfunction OT - donor-specific antibodies OT - lung transplantation EDAT- 2016/03/12 06:00 MHDA- 2017/07/20 06:00 CRDT- 2016/03/12 06:00 PHST- 2016/03/12 06:00 [entrez] PHST- 2016/03/12 06:00 [pubmed] PHST- 2017/07/20 06:00 [medline] AID - 10.1164/rccm.201509-1857OC [doi] PST - ppublish SO - Am J Respir Crit Care Med. 2016 Sep 1;194(5):596-606. doi: 10.1164/rccm.201509-1857OC.