GBP2 is a prognostic biomarker and associated with immunotherapeutic responses in gastric cancer

• Published in: BMC cancer Vol. 23; no. 1; pp. 925 - 11
• Main Authors: Wang, Yunfei, Pan, Jiadong, An, Fangmei, Chen, Ke, Chen, Jiawei, Nie, He, Zhu, Yanping, Qian, Zhengtao, Zhan, Qiang
• Format: Journal Article
• Language: English
• Published: England BioMed Central Ltd 02.10.2023; BioMed Central; BMC
• Subjects: Analysis; B cells; Binding proteins; Biological response modifiers; Biomarker; Biomarkers; Breast cancer; Cancer; Cancer therapies; Carcinoma, Non-Small-Cell Lung; Carcinoma, Transitional Cell; Cell death; Chemokines; Clinical trials; Development and progression; Drug therapy; Ethylenediaminetetraacetic acid; Gastric cancer; GBP2; Genes; Genetic aspects; Genomes; Genomics; GTP-Binding Proteins - genetics; Guanylate-binding protein; Health aspects; Humans; Immunogenicity; Immunology; Immunomodulation; Immunotherapy; Interferon; Lung cancer; Lung cancer, Non-small cell; Lung carcinoma; Lung Neoplasms; Medical prognosis; Melanoma; Monoclonal antibodies; Non-small cell lung carcinoma; Phenotypes; Physiological aspects; Prognosis; Protein binding; Proteins; Small cell lung carcinoma; Stomach cancer; Stomach Neoplasms - therapy; Survival analysis; Tumor-infiltrating lymphocytes; Urinary Bladder Neoplasms; Urothelial cancer; Urothelial carcinoma; China; Biomarker; GBP2; Gastric cancer; Immunotherapy
• ISSN: 1471-2407; 1471-2407
• DOI: 10.1186/s12885-023-11308-0

The interferon-induced protein known as guanylate-binding protein 2 (GBP2) has been linked to multiple different cancer types as an oncogenic gene. Although the role of GBP2 in cancer has been preliminarily explored, it is unclear how this protein interacts with tumor immunity in gastric cancer. The expression, prognostic value, immune-correlations of GBP2 in gastric cancer was explored in multiple public and in-house cohorts. In addition, the pan-cancer analysis was performed to investigate the immunological role of GBP2 based on The Cancer Genome Atlas (TCGA) dataset, and the predictive value of GBP2 for immunotherapy was also examined in multiple public cohorts. GBP2 was highly expressed in tumor tissues and associated with poor prognosis in gastric cancer. In addition, GBP2 was associated with the immune-hot phenotype. To be more specific, GBP2 was positively related to immuno-modulators, tumor-infiltrating immune cells (TIICs), immunotherapy biomarkers, and even well immunotherapeutic response. In addition to gastric cancer, GBP2 was expected to be an indicator of high immunogenicity in most cancer types. Importantly, GBP2 could predict the immunotherapeutic responses in at least four different cancer types, including melanoma, urothelial carcinoma, non-small cell lung cancer, and breast cancer. To sum up, GBP2 expression is a promising pan-cancer biomarker for estimating the immunological characteristics of tumors and may be utilized to detect immuno-hot tumors in gastric cancer.