期刊
FRONTIERS IN ONCOLOGY
卷 11, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fonc.2021.748277
关键词
Multifocal glioma; CD8; tumor-infiltrating lymphocytes (TILs); chemotherapy; prognosis
类别
资金
- Liaoning Revitalization Talents Program [XLYC1807253]
- National Natural Science Foundation of China [81772653, 81402045]
The study found that decreased levels of CD8(+) tumor-infiltrating lymphocytes were associated with unfavorable clinical outcomes in multicentric glioblastomas (mGBMs), suggesting an influence of the local immuno-microenvironment on disease progression.
Purpose Multifocal and multicentric glioblastomas (mGBMs) are associated with a poorer prognosis compared to unifocal glioblastoma (uGBM). The presence of CD8(+) tumor-infiltrating lymphocytes (TILs) is predictive of clinical outcomes in human malignancies. Here, we examined the CD8(+) lymphocytic infiltration in mGBMs. Methods The clinical data of 57 consecutive IDH wildtype primary mGBM patients with histopathological diagnoses were retrospectively reviewed. CD8(+) TILs were quantitatively evaluated by immunohistochemical staining. The survival function of CD8(+) TILs was assessed by Kaplan-Meier analysis and Cox proportional hazard models. Results No significant difference in the concentration of CD8(+) TILs was observed among foci from the same patient (P>0.150). The presence of CD8(+) TILs was similar between multifocal and multicentric GBMs (P=0.885). The concentration of CD8(+) TILs was significantly lower in mGBMs than in uGBMs (P=0.002). In mGBM patients, the CD8(+) TIL level was associated with preoperative KPS (P=0.018). The median overall survival (OS) of the 57 mGBMs was 9 months. A low CD8(+) TIL level (multivariate HR 4.404, 95% CI 1.954-9.926, P=0.0004) was an independent predictor of poor OS, while postoperative temozolomide chemotherapy (multivariate HR 6.076, 95% CI 2.330-15.842, P=0.0002) was independently associated with prolonged OS in mGBMs. Conclusions Decreased CD8(+) TIL levels potentially correlate with unfavorable clinical outcome in mGBMs, suggesting an influence of the local immuno-microenvironment on the progression of mGBMs.
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