6533b7d2fe1ef96bd125ecb4

RESEARCH PRODUCT

FOXP3 Inhibitory Peptide P60 Increases Efficacy of Cytokine-induced Killer Cells Against Renal and Pancreatic Cancer Cells

Maria Fitria SetiawanIngo G.h. Schmidt-wolfTeresa LozanoFrancesca GarofanoHans WeiherOliver RudanRoland Schmidt-wolfBettina LanghansNoelia CasaresJuan José LasarteChristian P. StrassburgAnnabelle VogtMaria A. Gonzalez-carmona

subject

Cytotoxicity ImmunologicCancer ResearchFOXP3Cell SurvivalImmunotherapy.KidneyMajor histocompatibility complexT-Lymphocytes RegulatoryInterferon-gamma03 medical and health sciencesCytokine-Induced Killer Cells0302 clinical medicineCytokine-induced killer (CIK) cellCell Line TumorPancreatic cancermedicineHumansCytotoxic T cellViability assayCytotoxicityPancreasCancerCytokine-induced killer cellbiologyChemistryFOXP3Forkhead Transcription FactorsGeneral Medicinemedicine.diseaseCoculture TechniquesKidney NeoplasmsPancreatic NeoplasmsOncologyCell culture030220 oncology & carcinogenesisAdoptive cell transferCancer researchbiology.proteinCytokinesPeptides

description

Background/aim Cytokine-induced killer (CIK) cells are ex vivo expanded major histocompatibility complex (MHC)-unrestricted cytotoxic cells with promising effects against a variety of cancer types. Regulatory T-cells (T-reg) have been shown to reduce the effectiveness of CIK cells against tumor cells. Peptide P60 has been shown to inhibit the immunosuppressive functions of T-regs. This study aimed at examining the effect of p60 on CIK cells efficacy against renal and pancreatic cancer cells. Materials and methods The effect of P60 on CIK cytotoxicity was examined using flow cytometry, WST-8-based cell viability assay and interferon γ (IFNγ) ELISA. Results P60 treatment resulted in a significant decrease in the viability of renal and pancreatic cancer cell lines co-cultured with CIK cells. No increase in IFNγ secretion from CIK cells was detected following treatment with P60. P60 caused no changes in the distribution of major effector cell populations in CIK cell cultures. Conclusion P60 may potentiate CIK cell cytotoxicity against tumor cells.

yearjournalcountryeditionlanguage
2019-07-29Anticancer Research
https://doi.org/10.21873/anticanres.13730