PMID- 34015634 OWN - NLM STAT- MEDLINE DCOM- 20210630 LR - 20210630 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 220 DP - 2021 Sep 1 TI - In vitro co-culture model of human monocyte-derived dendritic cells and T cells to evaluate the sensitization of dinitrochlorobenzene. PG - 112331 LID - S0147-6513(21)00442-5 [pii] LID - 10.1016/j.ecoenv.2021.112331 [doi] AB - Exposure to sensitizer has been suggested to be hazardous to human health, evaluation the sensitization of sensitizer is particularly important and urgently needed. Dendritic cells (DCs) exert an irreplaceable function in immunity, and the T cell receptor (TCR) repertoire is key to ensuring immune response to foreign antigens. We hypothesized that a co-culture model of human monocyte-derived dendritic cells (Mo-DCs) and T cells could be employed to evaluate the sensitization of DNCB. An experimental model of DNCB-induced sensitization in rat was employed to examine alterations of cluster of differentiation CD103(+) DCs and T cells. A co-cultured model of Mo-DCs and T cells was developed in vitro to assess the sensitization of DNCB through the phenotypic and functional alterations of Mo-DCs, as well as the TCR repertoire. We found that the CD103(+) DCs phenotype and T-helper (Th) cells polarization altered in sensitization rats. In vitro, phenotypic alteration of Mo-DCs caused by DNCB were consistent with in vivo results, antigen uptake capacity of Mo-DCs diminished and capacity of Mo-DCs to prime T cell increased. Clones of the TCR repertoire and the diversity of TCR repertoire were enhanced, changes were noted in the usage of variable, joining, and variable-joining gene combinations. DNCB exposure potentiated alterations and characteristics of Mo-DCs and the TCR repertoire in a co-culture model. Such changes provided innovative ideas for evaluating sensitization of DNCB. CI - Copyright (c) 2021 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Bao, Lei AU - Bao L AD - Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, Hebei 050017, China; Department of Occupational Health and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China. FAU - Hao, Changfu AU - Hao C AD - Department of Occupational Health and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China. FAU - Wang, Juan AU - Wang J AD - Department of Staistics, Hebei General Hospital, Shijiazhuang, Hebei 050000, China. FAU - Guo, Feifei AU - Guo F AD - Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, Hebei 050017, China. FAU - Geng, Zihan AU - Geng Z AD - Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, Hebei 050017, China. FAU - Wang, Di AU - Wang D AD - Department of Occupational Health and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China. FAU - Zhao, Youliang AU - Zhao Y AD - Department of Occupational Health and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China. FAU - Li, Yiping AU - Li Y AD - Department of Occupational Health and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China. FAU - Yao, Wu AU - Yao W AD - Department of Occupational Health and Environmental Health, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China. Electronic address: yaowu@zzu.edu.cn. LA - eng PT - Journal Article DEP - 20210518 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 RN - 0 (Dinitrochlorobenzene) RN - 0 (Irritants) SB - IM MH - Adult MH - Animals MH - Coculture Techniques MH - Dendritic Cells/*drug effects MH - Dinitrochlorobenzene/*toxicity MH - Female MH - Humans MH - Irritants/*toxicity MH - Male MH - Monocytes/cytology MH - Rats MH - Rats, Sprague-Dawley MH - T-Lymphocytes/*drug effects MH - Young Adult OTO - NOTNLM OT - Dendritic cell OT - Dinitrochlorobenzene OT - Evaluation of sensitization OT - T cell receptor OT - TCR repertoire EDAT- 2021/05/21 06:00 MHDA- 2021/07/01 06:00 CRDT- 2021/05/20 20:21 PHST- 2021/01/25 00:00 [received] PHST- 2021/04/14 00:00 [revised] PHST- 2021/05/08 00:00 [accepted] PHST- 2021/05/21 06:00 [pubmed] PHST- 2021/07/01 06:00 [medline] PHST- 2021/05/20 20:21 [entrez] AID - S0147-6513(21)00442-5 [pii] AID - 10.1016/j.ecoenv.2021.112331 [doi] PST - ppublish SO - Ecotoxicol Environ Saf. 2021 Sep 1;220:112331. doi: 10.1016/j.ecoenv.2021.112331. Epub 2021 May 18.