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Biological and molecular studies on specific immune cells treated with checkpoint inhibitors for the thera-personal approach of breast cancer patients(ex-vivo study)

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Oncology Research 2021年第5期29卷 319-330页

作者： motawa e.el-houseini MOSTAFA S.ARAFAT AHMeD M.el-HUSSeINY ISLAM M.KASeM MAHMOUD M.KAMel AHMeD H.el-HABASHY MeDHAT M.KHAFAGY eNAS M.RADWAN MAHA H.HelAL MONA S.ABDelLATeIF Medical Biochemistry and Molecular Biology Cancer Biology DepartmentNational Cancer InstituteCairo UniversityCairo11976Egypt Biotechnology Department Faculty of ScienceCairo UniversityGiza12613Egypt Zoology department Faculty of ScienceCairo UniversityGiza12613Egypt Clinical Pathology Department National Cancer InstituteCairo UniversityCairo11976Egypt Department of Pathology National Cancer InstituteCairo UniversityCairo11976Egypt Surgical Oncology Department National Cancer InstituteCairo UniversityCairo11976Egypt Radio-Diagnosis Department National Cancer InstituteCairo UniversityCairo11976Egypt

Immunotherapy becomes a promising line of treatment for breast cancer(BC)however,its success rate is still ***:The study was designed to optimize the condition for producing an effective dendritic cell(DCs)based immunotherapy by using DCs and T lymphocytes together with tumor-inﬁltrating lymphocytes(TILs)and tumor-inﬁltrating DCs(TIDCs),treated with anti-PD1 and anti-CTLA4 monoclonal *** mixture of immune cells was co-cultured with autologous breast cancer cells(BCCs)isolated from 26 BC ***:There was a signiﬁcant upregulation of CD86 and CD83 on DCs(p=0.001 and 0.017,respectively),similarly upregulation of CD8,CD4 and CD103 on T cells(p=0.031,0.027,and 0.011,respectively).While there was a signiﬁcant downregulation of FOXP3 and combined ***8 expression on regulatory T cells(p=0.014 for both).Increased CD8/Foxp3 ratio(pere downregulated on BCCs(p=0.01,0.021,and 0.015,respectively).There was a signiﬁcant increase in interferon-γ(IFN-γ,pe dehydrogenase(LDH,p=0.02),and a signiﬁcant decrease in vascular endothelial growth factor(VeGF,pein *** expression of FOXP3 and Programmed cell death ligand 1(PDL-1)were downregulated in BCCs(pe antigen-4(CTLA4,p=0.02),Programmed cell death 1(PD-1,pere signiﬁcantly downregulated in T ***:ex-vivo activation of immune cells(DCs,T cells,TIDCs,and TILs)with immune checkpoint inhibitors could produce a potent and effective BC ***,these data should be validated on an experimental animal model to be transferred to the clinical setting.

关键词： Immunotherapy breast cancer PD1 CTLA4 TIDCs TILs

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