PMID- 33647585 OWN - NLM STAT- MEDLINE DCOM- 20220118 LR - 20240226 IS - 1096-0023 (Electronic) IS - 1043-4666 (Linking) VI - 142 DP - 2021 Jun TI - The murine DCs transfected with DNA-plasmid encoding CCR9 demonstrate the increased migration to CCL25 and thymic cells in vitro and to the thymus in vivo. PG - 155473 LID - S1043-4666(21)00053-3 [pii] LID - 10.1016/j.cyto.2021.155473 [doi] AB - BACKGROUND: B220(+)CD11c(+)plasmacytoid DCs(pDCs) are known to participate in the negative selection and central tolerance induction by the capturing of self-antigens in peripheral tissues and further migration to the thymus using the CCL25-CCR9 chemotaxis axis. AIM: Here we investigate the possibility of DCs migration stimulation to the thymus by the transfection with plasmid DNA-constructs encoding CCR9(pmaxCCR9) to develop a system for desired antigen delivery to the thymus for central tolerance induction. METHODS: Dendritic cells(DCs) cultures were generated from UBC-GFP mice bone marrow cells expressing green fluorescent protein using the rmFlt3-L. DCs cultures were transfected with pmaxCCR9 by electroporation. The efficiency of electroporation was confirmed by RT-qPCR and flow cytometry. The migration of electroporated DCs was assessed in vitro and in vivo. RESULTS: Dendritic cells(DCs) cultures obtained from UBC-GFP mice contained both B220(+)pDCs and SIRPa(+)cDC2. According to the RT-qPCR assay, the electroporation of obtained DCs cultures with pmaxCCR9 resulted in a 94.4-fold increase of RNA encoding CCR9 compared with non-electroporated cultures. Flow cytometry data showed that DCs cultures electroporated with pmaxCCR9 contained a significantly higher frequency of DCs carrying significantly higher levels of surface CCR9. Migration dynamics of obtained DCs analyzed in vitro showed that pmaxCCR9 electroporated DCs migrated significantly more active to CCL25 and thymic cells than non-electroporated and mock-electroporated DCs. In vivo, 30 days after injection, the relative amount of the DCs electroporated with pmaxCCR9 and pmaxMHC encoding antigenic determinants in the mice thymuses was 2.02-fold higher than the relative amount of the DCs electroporated with control plasmid. CONCLUSION: Thus, the electroporation of murine DCs with pmaxCCR9 stimulated its migration to CCL25 and thymic cells in vitro as well as to the thymus in vivo. The obtained DCs loaded with a desired antigen may be suggested for further evaluation of central tolerance induction ability in in vivo models of autoimmune diseases and transplantation. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Tereshchenko, Valeriy AU - Tereshchenko V AD - Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia. FAU - Bulygin, Aleksei AU - Bulygin A AD - Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia. FAU - Zavodskii, Roman AU - Zavodskii R AD - Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia. FAU - Maksyutov, Amir AU - Maksyutov A AD - Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia; State Research Center of Virology and Biotechnology "Vector", 630559 Koltsovo, Russia. FAU - Kurilin, Vasiliy AU - Kurilin V AD - Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia. FAU - Fisher, Marina AU - Fisher M AD - Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia. FAU - Semenyuk, Nikita AU - Semenyuk N AD - Novosibirsk State University, 630090 Novosibirsk, Russia. FAU - Aladev, Stanislav AU - Aladev S AD - Novosibirsk State University, 630090 Novosibirsk, Russia. FAU - Sennikov, Sergey AU - Sennikov S AD - Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia; Novosibirsk State University, 630090 Novosibirsk, Russia. Electronic address: sennikovsv@gmail.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210226 PL - England TA - Cytokine JT - Cytokine JID - 9005353 RN - 0 (Antigens) RN - 0 (CC chemokine receptor 9) RN - 0 (Ccl25 protein, mouse) RN - 0 (Chemokines, CC) RN - 0 (Membrane Proteins) RN - 0 (Receptors, CCR) RN - 0 (flt3 ligand protein) RN - 147336-22-9 (Green Fluorescent Proteins) RN - 9007-49-2 (DNA) SB - IM MH - Animals MH - Antigens/metabolism MH - *Cell Movement/drug effects MH - Cells, Cultured MH - Chemokines, CC/*metabolism MH - DNA/*metabolism MH - Dendritic Cells/cytology/drug effects/*metabolism MH - Electroporation MH - Green Fluorescent Proteins/metabolism MH - Male MH - Membrane Proteins/pharmacology MH - Mice, Inbred C57BL MH - Plasmids/*metabolism MH - Receptors, CCR/*metabolism MH - Thymus Gland/*cytology MH - *Transfection MH - Transgenes MH - Mice OTO - NOTNLM OT - CCL25 OT - CCR9 OT - Migration OT - Thymus OT - conventional DC type 2 OT - plasmacytoid DCs EDAT- 2021/03/02 06:00 MHDA- 2022/01/19 06:00 CRDT- 2021/03/01 20:14 PHST- 2020/11/20 00:00 [received] PHST- 2021/02/09 00:00 [revised] PHST- 2021/02/09 00:00 [accepted] PHST- 2021/03/02 06:00 [pubmed] PHST- 2022/01/19 06:00 [medline] PHST- 2021/03/01 20:14 [entrez] AID - S1043-4666(21)00053-3 [pii] AID - 10.1016/j.cyto.2021.155473 [doi] PST - ppublish SO - Cytokine. 2021 Jun;142:155473. doi: 10.1016/j.cyto.2021.155473. Epub 2021 Feb 26.