PMID- 35116874 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220501 IS - 2219-6803 (Electronic) IS - 2218-676X (Print) IS - 2218-676X (Linking) VI - 8 IP - 4 DP - 2019 Aug TI - IL-35 inhibits CD8(+) T cells activity by suppressing expression of costimulatory molecule CD28 and Th1 cytokine production. PG - 1319-1325 LID - 10.21037/tcr.2019.07.30 [doi] AB - BACKGROUND: Interleukin-35 (IL-35), a novel immune-suppressing cytokine, can promote tumor angiogenesis and inhibits anti-tumor cytotoxic lymphocyte response. Here, we aimed to investigate the potential mechanism of the effects of IL-35 on anti-tumor cytotoxic lymphocyte. METHODS: Dendritic cells (DCs) were used to induce anti-tumor cytotoxic lymphocyte. Flow cytometry, carboxyfluorescein succinimidyl ester staining, ELISA assay and western blotting were used to analyze the effect of IL-35 on anti-tumor cytotoxic lymphocyte. RESULTS: We observed that IL-35 inhibited the expression of costimulatory molecule CD28 on CD8(+) T cell surface and Th1 cytokine production. However, IL-35 did not inhibit anti-tumor cytotoxic lymphocyte proliferation nor enhance the expression of apoptosis-related proteins of anti-tumor cytotoxic lymphocyte. Moreover, IL-35 did not repress the expression of Fas ligand (FasL) on cytotoxic lymphocyte surface. CONCLUSIONS: Our findings revealed that IL-35 can inhibit CD8(+) T cells activity by suppressing the expression of costimulatory molecule CD28 and Th1 cytokine production. CI - 2019 Translational Cancer Research. All rights reserved. FAU - Jiang, Hua AU - Jiang H AD - Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Department of Radiation Oncology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Eye Center, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. FAU - Zhang, Ting AU - Zhang T AD - Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Department of Radiation Oncology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Eye Center, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. FAU - Yan, Mao-Xiao AU - Yan MX AD - Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Department of Radiation Oncology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Eye Center, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. FAU - Wu, Wei AU - Wu W AD - Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Department of Radiation Oncology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. AD - Eye Center, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China. LA - eng PT - Journal Article PL - China TA - Transl Cancer Res JT - Translational cancer research JID - 101585958 PMC - PMC8797787 OTO - NOTNLM OT - Costimulatory molecule OT - cytokine OT - cytotoxic lymphocyte OT - interleukin-35 (IL-35) COIS- Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at http://dx.doi.org/10.21037/tcr.2019.07.30). The authors have no conflicts of interest to declare. EDAT- 2019/08/01 00:00 MHDA- 2019/08/01 00:01 PMCR- 2019/08/01 CRDT- 2022/02/04 05:49 PHST- 2019/03/02 00:00 [received] PHST- 2019/05/31 00:00 [accepted] PHST- 2022/02/04 05:49 [entrez] PHST- 2019/08/01 00:00 [pubmed] PHST- 2019/08/01 00:01 [medline] PHST- 2019/08/01 00:00 [pmc-release] AID - tcr-08-04-1319 [pii] AID - 10.21037/tcr.2019.07.30 [doi] PST - ppublish SO - Transl Cancer Res. 2019 Aug;8(4):1319-1325. doi: 10.21037/tcr.2019.07.30.