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| Content Provider | frontiers |
|---|---|
| Author | Tang, Guihua Yin, Wen |
| Abstract | Introduction: Glioblastoma multiforme (GBM) is the most common deadly brain malignancy and lacks of effective therapies. Immunotherapy acts as a promising novel strategy, but not for all GBM patients. Therefore, classification of patients into different prognostic groups is urgent for better personalized management. Materials and methods: The Cell type Identification By Estimating Relative Subsets Of RNA Transcripts (CIBERSORT) algorithm was used to estimate the fraction of 22 types of infiltrating immune cells, and least absolute shrinkage and selection operator (LASSO) Cox regression analysis was performed to construct an immune infiltration-related prognostic scoring system (IIRPSS). Additionally, a quantitative predicting survival nomogram was also established based on immune risk score (IRS) derived from the IIRPSS. Moreover, we also preliminarily explored the differences in the immune microenvironment between different prognostic groups. Results: There were total 310 appropriate GBM samples (239 from TCGA and 71 from CGGA) included in further analyses after CIBERSORT filtering and data processing. The IIRPSS consisting of 17 types of immune cell fraction was constructed in TCGA cohort, the patients were successfully classified into different prognostic groups based on their immune risk score (p = 1e-10). What’s more, the prognostic performance of the IIRPSS was validated in CGGA cohort (p = 0.005). The nomogram also showed a superior predicting value. (The predicting AUC for 1-, 2-, and 3-year were 0.754, 0.813, and 0.871 respectively). The immune microenvironment analyses reflected a significant immune responses and a higher immune checkpoint expression in immune high-risk group. Conclusion: Our study constructed an IIRPSS, which maybe valuable to help clinicians select candidates most likely to benefit from immunological checkpoint inhibitors (ICIs) and laid the foundation for further improving personalized immunotherapy in patients with GBM. |
| ISSN | 2234943X |
| DOI | 10.3389/fonc.2020.00154 |
| Volume Number | 10 |
| Journal | Frontiers in Oncology |
| Language | English |
| Publisher Date | 2020-02-18 |
| Access Restriction | Open |
| Subject Keyword | Glioblastoma multiforme (GBM) Immune infiltration Prognostic scoring system TCGA CGGA |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cancer Research Oncology |
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