PMID- 37258260 OWN - NLM STAT- MEDLINE DCOM- 20230602 LR - 20230604 IS - 2982-6799 (Electronic) IS - 2982-5164 (Print) IS - 2982-5164 (Linking) VI - 61 IP - 2 DP - 2023 May TI - Expression of cytokines and co-stimulatory molecules in the Toxoplasma gondii-infected dendritic cells of C57BL/6 and BALB/c mice. PG - 138-146 LID - 10.3347/PHD.22150 [doi] AB - Toxoplasma gondii is an intracellular protozoan parasite which can infect most warm-blooded animals and humans. Among the different mouse models, C57BL/6 mice are more susceptible to T. gondii infection compared to BALB/c mice, and this increased susceptibility has been attributed to various factors, including T-cell responses. Dendritic cells (DCs) are the most prominent type of antigen-presenting cells and regulate the host immune response, including the response of T-cells. However, differences in the DC responses of these mouse strains to T. gondii infection have yet to be characterized. In this study, we cultured bone marrow-derived DCs (BMDCs) from BALB/c and C57BL/6 mice. These cells were infected with T. gondii. The activation of the BMDCs was assessed based on the expression of cell surface markers and cytokines. In the BMDCs of both mouse strains, we detected significant increases in the expression of cell surface T-cell co-stimulatory molecules (major histocompatibility complex (MHC) II, CD40, CD80, and CD86) and cytokines (tumor necrosis factor (TNF)-alpha, interferon (IFN)-gamma, interleukin (IL)-12p40, IL-1beta, and IL-10) from 3 h post-T. gondii infection. The expression of MHC II, CD40, CD80, CD86, IFN-gamma, IL-12p40, and IL-1beta was significantly higher in the T. gondii-infected BMDCs obtained from the C57BL/6 mice than in those from the BALB/c mice. These findings indicate that differences in the activation status of the BMDCs in the BALB/c and C57BL/6 mice may account for their differential susceptibility to T. gondii. FAU - Lee, Jae-Hyung AU - Lee JH AD - Department of Medical Science and Department of Infection Biology, Chungnam National University College of Medicine, Daejeon 35015, Korea. FAU - Yuk, Jae-Min AU - Yuk JM AD - Department of Medical Science and Department of Infection Biology, Chungnam National University College of Medicine, Daejeon 35015, Korea. FAU - Cha, Guang-Ho AU - Cha GH AD - Department of Medical Science and Department of Infection Biology, Chungnam National University College of Medicine, Daejeon 35015, Korea. FAU - Lee, Young-Ha AU - Lee YH AD - Department of Medical Science and Department of Infection Biology, Chungnam National University College of Medicine, Daejeon 35015, Korea. LA - eng PT - Journal Article DEP - 20230523 PL - Korea (South) TA - Parasites Hosts Dis JT - Parasites, hosts and diseases JID - 9918574074806676 RN - 0 (Cytokines) RN - 0 (Interleukins) RN - 0 (CD40 Antigens) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Humans MH - Mice MH - Animals MH - *Cytokines/metabolism MH - *Toxoplasma MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - Interleukins/metabolism MH - CD40 Antigens/metabolism MH - Tumor Necrosis Factor-alpha/metabolism MH - Dendritic Cells PMC - PMC10234828 OTO - NOTNLM OT - Toxoplasma gondii OT - co-stimulatory molecule OT - cytokine OT - dendritic cell OT - mouse COIS- The authors declare no conflict of interest related to this study. EDAT- 2023/06/01 01:08 MHDA- 2023/06/02 06:42 PMCR- 2023/05/01 CRDT- 2023/05/31 21:39 PHST- 2022/10/30 00:00 [received] PHST- 2023/03/14 00:00 [accepted] PHST- 2023/06/02 06:42 [medline] PHST- 2023/06/01 01:08 [pubmed] PHST- 2023/05/31 21:39 [entrez] PHST- 2023/05/01 00:00 [pmc-release] AID - PHD.22150 [pii] AID - phd-22150 [pii] AID - 10.3347/PHD.22150 [doi] PST - ppublish SO - Parasites Hosts Dis. 2023 May;61(2):138-146. doi: 10.3347/PHD.22150. Epub 2023 May 23.