PMID- 26554788 OWN - NLM STAT- MEDLINE DCOM- 20160218 LR - 20181113 IS - 1536-5964 (Electronic) IS - 0025-7974 (Print) IS - 0025-7974 (Linking) VI - 94 IP - 44 DP - 2015 Nov TI - Immunologic Monitoring of T-Lymphocyte Subsets and Hla-Dr-Positive Monocytes in Kidney Transplant Recipients: A Prospective, Observational Cohort Study. PG - e1902 LID - 10.1097/MD.0000000000001902 [doi] LID - e1902 AB - The clinical significance of circulating T-lymphocyte subsets and human leukocyte antigen (HLA)-DR-positive monocytes in the peripheral blood of kidney transplant recipients (KTRs) remains unclear. We examined the efficacy of enumerating these cells for the immunologic monitoring of KTRs.Blood samples were obtained before transplantation, 2 weeks after transplantation and at diagnosis, and 2 weeks after treating biopsy-proven acute cellular rejection and cytomegalovirus (CMV) infection. Serial flow cytometric analysis was performed using peripheral blood obtained from 123 patients to identify the frequencies of HLA-DR, CD3, CD4, CD8, and CD25 T-lymphocytes and HLA-DR-positive monocytes.Frequencies of CD4CD25/CD4 T cells, CD8CD25/CD8 T cells, and HLA-DR-positive monocytes were significantly lower at 2 weeks after transplantation than before transplantation (all P < 0.001). This decrease was not correlated with clinical parameters. The frequency of CD4CD25/CD4 T cells was significantly higher in KTRs with acute rejection than in KTRs at 2 weeks after transplantation (9.10% [range 4.30-25.6%] vs 5.10% [range 0.10-33.3%]; P = 0.024). However, no significant differences were observed between stable KTRs and KTRs with CMV infection. Analysis of the receiver operating characteristic curve adjusted by covariates showed that acute rejection could be predicted with 75.0% sensitivity and 68.4% specificity by setting the cutoff value of CD4CD25/CD4 T cell frequency as 5.8%.Circulating T-lymphocyte and monocyte subsets showed significant and consistent changes in their frequencies after immunosuppression. Of the various immune cells examined, circulating levels of CD4CD25 T cells might be a useful noninvasive immunologic indicator for detecting acute rejection. FAU - Cho, Jang-Hee AU - Cho JH AD - From the Department of Internal Medicine (J-HC, Y-DY, EK, H-YJ, J-YC, S-HP, Y-LK, C-DK); Department of Statistics (HMJ); Department of Surgery (H-KK, SH); and Department of Clinical Pathology, Kyungpook National University Hospital, Daegu, Korea (D-IW). FAU - Yoon, Young-Deuk AU - Yoon YD FAU - Jang, Hye Min AU - Jang HM FAU - Kwon, Eugene AU - Kwon E FAU - Jung, Hee-Yeon AU - Jung HY FAU - Choi, Ji-Young AU - Choi JY FAU - Park, Sun-Hee AU - Park SH FAU - Kim, Yong-Lim AU - Kim YL FAU - Kim, Hyung-Kee AU - Kim HK FAU - Huh, Seung AU - Huh S FAU - Won, Dong-Il AU - Won DI FAU - Kim, Chan-Duck AU - Kim CD LA - eng PT - Journal Article PT - Observational Study PT - Research Support, Non-U.S. Gov't PL - United States TA - Medicine (Baltimore) JT - Medicine JID - 2985248R RN - 0 (HLA-DR Antigens) SB - IM EIN - Medicine (Baltimore). 2016 Jan 22;95(3):e8921. PMID: 31265609 MH - Adult MH - Aged MH - CD4-Positive T-Lymphocytes/immunology MH - CD8-Positive T-Lymphocytes/*immunology MH - Female MH - Flow Cytometry MH - Follow-Up Studies MH - Graft Rejection/*immunology/pathology MH - HLA-DR Antigens/*immunology MH - Humans MH - *Immunity, Cellular MH - *Kidney Transplantation MH - Lymphocyte Activation MH - Lymphocyte Count MH - Male MH - Middle Aged MH - Monitoring, Immunologic/*methods MH - Prospective Studies MH - T-Lymphocyte Subsets/*immunology MH - Young Adult PMC - PMC4915889 COIS- The authors declare that they do not have any competing interests. EDAT- 2015/11/12 06:00 MHDA- 2016/02/19 06:00 PMCR- 2015/11/06 CRDT- 2015/11/12 06:00 PHST- 2015/11/12 06:00 [entrez] PHST- 2015/11/12 06:00 [pubmed] PHST- 2016/02/19 06:00 [medline] PHST- 2015/11/06 00:00 [pmc-release] AID - 00005792-201511030-00028 [pii] AID - 10.1097/MD.0000000000001902 [doi] PST - ppublish SO - Medicine (Baltimore). 2015 Nov;94(44):e1902. doi: 10.1097/MD.0000000000001902.