ITGA5 Is a Novel Oncogenic Biomarker and Correlates With Tumor Immune Microenvironment in Gliomas

Frontiers in Oncology

Jiajing Liu¹  Yiwei Qi²  Hao Zhang³  Qi Zhang⁴  Shiyang Liu⁵  Xingrui Li⁵  Shuyu Li⁵  Nan Zhang⁶ 

[1] Department of Neurology, Affiliated People’s Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China;Department of Neurosurgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China;Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China;Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China;Department of Thyroid and Breast Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China;One-Third Lab, College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China;

关键词: glioma;    ITGA5;    tumor microenvironment;    immune cells (ICs);    immune checkpoint;   

DOI  :  10.3389/fonc.2022.844144

来源: DOAJ

【 摘 要 】

Gliomas are the most aggressive primary intracranial malignancies with poor overall survival. ITGA5 is one member of the integrin adhesion molecule family and is implicated in cancer metastasis and oncogenesis. However, few studies have explored the association between tumor immune microenvironment and ITGA5 expression level in gliomas. Firstly, we analyzed 3,047 glioma patient samples collected from the TCGA, the CGGA, and the GEO databases, proving that high ITGA5 expression positively related to aggressive clinicopathological features and poor survival in glioma patients. Then, based on the ITGA5 level, immunological characteristics and genomic alteration were explored through multiple algorithms. We observed that ITGA5 was involved in pivotal oncological pathways, immune-related processes, and distinct typical genomic alterations in gliomas. Notably, ITGA5 was found to engage in remolding glioma immune infiltration and immune microenvironment, manifested by higher immune cell infiltration when ITGA5 is highly expressed. We also demonstrated a strong correlation between ITGA5 and immune checkpoint molecules that may be beneficial from immune checkpoint blockade strategies. In addition, ITGA5 was found to be a robust and sensitive indicator for plenty of chemotherapy drugs through drug sensitivity prediction. Altogether, our comprehensive analyses deciphered the prognostic, immunological, and therapeutic value of ITGA5 in glioma, thus improving individual and precise therapy for combating gliomas.

【 授权许可】

Unknown