» Articles » PMID: 38993569

A High Immune-Related Index with the Suppression of CGAS-STING Pathway is a Key Determinant to Herceptin Resistance in HER2+ Breast Cancer

Overview
Journal Int J Biol Sci
Specialty Biology
Date 2024 Jul 12
PMID 38993569
Authors
Affiliations
Soon will be listed here.
Abstract

Resistance to HER2-targeted therapy is the major cause of treatment failure in patients with HER2+ breast cancer (BC). Given the key role of immune microenvironment in tumor development, there is a lack of an ideal prognostic model that fully accounts for immune infiltration. In this study, WGCNA analysis was performed to discover the relationship between immune-related signaling and prognosis of HER2+ BC. After Herceptin-resistant BC cell lines established, transcriptional profiles of resistant cell line and RNA-sequencing data from GSE76360 cohort were analyzed for candidate genes. 85 samples of HER2+ BC from TCGA database were analyzed by the Cox regression, XGBoost and Lasso algorithm to generalize a credible immune-related prognostic index (IRPI). Correlations between the IRPI signature and tumor microenvironment were further analyzed by multiple algorithms, including single-cell RNA sequencing data analysis. Patients with high IRPI had suppressive tumor immune microenvironment and worse prognosis. The suppression of type I interferon signaling indicated by the IRPI in Herceptin-resistant HER2+ BC was validated. And we elucidated that the suppression of cGAS-STING pathway is the key determinant underlying immune escape in Herceptin-resistant BC with high IRPI. A combination of STING agonist and DS-8201 could serve as a new strategy for Herceptin-resistant HER2+ BC.

References
1.
Emens L, Esteva F, Beresford M, Saura C, De Laurentiis M, Kim S . Trastuzumab emtansine plus atezolizumab versus trastuzumab emtansine plus placebo in previously treated, HER2-positive advanced breast cancer (KATE2): a phase 2, multicentre, randomised, double-blind trial. Lancet Oncol. 2020; 21(10):1283-1295. DOI: 10.1016/S1470-2045(20)30465-4. View

2.
Wang Y, Luo J, Alu A, Han X, Wei Y, Wei X . cGAS-STING pathway in cancer biotherapy. Mol Cancer. 2020; 19(1):136. PMC: 7472700. DOI: 10.1186/s12943-020-01247-w. View

3.
Jiang M, Chen P, Wang L, Li W, Chen B, Liu Y . cGAS-STING, an important pathway in cancer immunotherapy. J Hematol Oncol. 2020; 13(1):81. PMC: 7310007. DOI: 10.1186/s13045-020-00916-z. View

4.
Musolino A, Boggiani D, Sikokis A, Rimanti A, Pellegrino B, Vattiato R . Prognostic risk factors for treatment decision in pT1a,b N0M0 HER2-positive breast cancers. Cancer Treat Rev. 2016; 43:1-7. DOI: 10.1016/j.ctrv.2015.11.010. View

5.
Denkert C, von Minckwitz G, Darb-Esfahani S, Lederer B, Heppner B, Weber K . Tumour-infiltrating lymphocytes and prognosis in different subtypes of breast cancer: a pooled analysis of 3771 patients treated with neoadjuvant therapy. Lancet Oncol. 2017; 19(1):40-50. DOI: 10.1016/S1470-2045(17)30904-X. View