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- W3205430003 abstract "A substantial body of evidence has accumulated indicating that cervical cancer is immunologically heterogeneous and comprises several molecular immunophenotypes. A significant proportion of cervical cancers show enrichment in intratumoral immune cells, inflammatory microenvironment, high level of interferon signaling, accompanied by up-regulation of immune checkpoints and immune suppression. However, not much is known about whether such patterns are detectable in the early stages of cervical cancer progression, during transition from intraepithelial neoplasia to invasive carcinoma. RNA-seq and bioinformatics pathway analysis were performed using a panel of 16 surgical samples which included HPV(+) non-dysplastic epithelium, cervical intraepithelial neoplasia (CIN) 1, CIN2/3, carcinoma in situ (CIS), microcarcinoma (FIGO stage IA1), stages IA2, IB1, IB2/IIA1, and IIB of invasive cancer, as well as HPV(-) morphologically normal cervical epithelium as control. A significant number of interferon-stimulated genes (OAS1-3, MX1, IRF9, ISG15, IFI44, etc.) were found to be up-regulated in a subset of early-stage invasive cancer compared with CIN2-3/CIS. The members of various innate immune DNA/RNA-sensing pathways (including TLRs-, AIM2/inflammasome-, IFI16-, RLRs/MAVS-dependent, and others) and antiviral response also showed increased expression. Overexpression of proinflammatory chemokines (CXCL9, CXCL10, CX3CL1, etc.) in these samples points to the enhanced capacity to recruit activated T/B cells relative to CIS. Although no significant differences in the expression of immune checkpoints were detected between invasive cancer and precursor lesions, the development of immune suppression in early invasive cancer was evidenced by increased levels of IDO1, LGALS9, IL4R, but decreased levels of IL18 and many components of T-cell activation/costimulation and antigen presentation. The findings may contribute to a deeper understanding of the role of immune-relevant processes in cervical cancer expansion and dissemination, which is important for appropriate immunotherapy administration." @default.
- W3205430003 created "2021-10-25" @default.
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- W3205430003 date "2021-10-01" @default.
- W3205430003 modified "2023-09-27" @default.
- W3205430003 title "73P Studying the immune microenvironment favouring initiation of invasion in cervical carcinoma" @default.
- W3205430003 doi "https://doi.org/10.1016/j.annonc.2021.08.2069" @default.
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