The number of FoxP3+ cells in transbronchial lung allograft biopsies does not predict bronchiolitis obliterans syndrome within the first five years after transplantation
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The number of FoxP3+ cells in transbronchial lung allograft biopsies does not predict bronchiolitis obliterans syndrome within the first five years after transplantation. / Krustrup, Dorrit; Iversen, Martin; Martinussen, Torben; Schultz, Hans Henrik L; Andersen, Claus B.
I: Clinical Transplantation, Bind 29, Nr. 3, 03.2015, s. 179-184.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - The number of FoxP3+ cells in transbronchial lung allograft biopsies does not predict bronchiolitis obliterans syndrome within the first five years after transplantation
AU - Krustrup, Dorrit
AU - Iversen, Martin
AU - Martinussen, Torben
AU - Schultz, Hans Henrik L
AU - Andersen, Claus B.
PY - 2015/3
Y1 - 2015/3
N2 - Background: An important limitation to the success of lung transplantation is the development of bronchiolitis obliterans syndrome (BOS). It has been hypothesized that regulatory T lymphocytes (Tregs) are related to the risk of BOS. We aim to evaluate whether the number of forkhead box P3 (FoxP3+) cells/mm2 in lung allograft biopsies is a predictor of long-term outcome. Materials and Methods: A total of 58 consecutive lung transplant patients were included in the study. For 233 routine surveillance biopsy samples, the numbers of FoxP3+ cells/mm2 were assessed by immunohistochemical staining with antibodies against FoxP3. BOS scores were calculated for the first five yr after transplantation. Results: We determined that acute rejection was related to the time elapsed from transplantation to BOS with hazard ratios of 3.18 (p = 0.02) and 3.73 (p = 0.04) when comparing the levels of acute rejection grade 1 and grade 2/3, respectively, to no rejection. According to a Cox regression analysis, the number of FoxP3+ cells/mm2 was not predictive of time to BOS. Discussion and Conclusions: Our data indicate that the number of FoxP3+ cells in the lung allograft did not correlate with BOS-free survival time. Previous studies have been contradictory and included different time points. Our findings emphasize the importance of including a time factor.
AB - Background: An important limitation to the success of lung transplantation is the development of bronchiolitis obliterans syndrome (BOS). It has been hypothesized that regulatory T lymphocytes (Tregs) are related to the risk of BOS. We aim to evaluate whether the number of forkhead box P3 (FoxP3+) cells/mm2 in lung allograft biopsies is a predictor of long-term outcome. Materials and Methods: A total of 58 consecutive lung transplant patients were included in the study. For 233 routine surveillance biopsy samples, the numbers of FoxP3+ cells/mm2 were assessed by immunohistochemical staining with antibodies against FoxP3. BOS scores were calculated for the first five yr after transplantation. Results: We determined that acute rejection was related to the time elapsed from transplantation to BOS with hazard ratios of 3.18 (p = 0.02) and 3.73 (p = 0.04) when comparing the levels of acute rejection grade 1 and grade 2/3, respectively, to no rejection. According to a Cox regression analysis, the number of FoxP3+ cells/mm2 was not predictive of time to BOS. Discussion and Conclusions: Our data indicate that the number of FoxP3+ cells in the lung allograft did not correlate with BOS-free survival time. Previous studies have been contradictory and included different time points. Our findings emphasize the importance of including a time factor.
KW - Acute rejection
KW - Bronchiolitis obliterans syndrome
KW - Forkhead box P3
KW - Histopathology
KW - Lung transplantation
KW - Regulatory T cells
UR - http://www.scopus.com/inward/record.url?scp=84925235581&partnerID=8YFLogxK
U2 - 10.1111/ctr.12502
DO - 10.1111/ctr.12502
M3 - Journal article
C2 - 25533723
AN - SCOPUS:84925235581
VL - 29
SP - 179
EP - 184
JO - Clinical Transplantation
JF - Clinical Transplantation
SN - 0902-0063
IS - 3
ER -
ID: 135217645