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- W4200603909 abstract "Abstract Backgrounds The characteristics of programmed cell death protein-1 (PD-L1) expression, tumor-infiltrating lymphocytes (TILs), and tumor microenvironment (TME) in lung adenocarcinoma (LUAD) patients are closely related to immunotherapy, and there are differences between Asians and Caucasians. Methods Acquire the transcriptome data of the Cancer Genome Atlas and Chinese LUAD patients. R software was used to analyze the differential expression of genes, prognosis, and gene function. Use CIBERSORT for TIL-related analysis and ESTIMATE for TME-related analysis. Results The expression of PD-L1 in tumor tissues of Caucasian LUAD patients was lower than that in normal tissues, while there was no significant difference in Asians. There was no statistical difference between PD-L1 expression and prognosis. The composition of TILs between Caucasian and Asian LUAD patients was quite different. There was no correlation between TILs and prognosis in Caucasians. However, the higher content of resting mast cells indicated a better prognosis in Asians. The Caucasian patients with higher immune and estimate scores had a better prognosis ( p = 0.021, p = 0.025). However, the Asian patients with a higher estimate score had a worse prognosis ( p = 0.024). The high expression of COL5A2 ( p = 0.046, p = 0.027) and NOX4 ( p = 0.020, p = 0.019) were both associated with the poor prognosis in Caucasians and Asians. Conclusion There are many differences in the characteristics of PD-L1 expression, TILs, and TME between Caucasian and Asian LUAD patients. This provides a certain hint for the selection of specific immunotherapy strategies separately for Caucasian and Asian LUAD patients." @default.
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- W4200603909 date "2021-12-01" @default.
- W4200603909 modified "2023-09-28" @default.
- W4200603909 title "Comprehensive analysis of PD-L1 expression, tumor-infiltrating lymphocytes, and tumor microenvironment in LUAD: differences between Asians and Caucasians" @default.
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- W4200603909 doi "https://doi.org/10.1186/s13148-021-01221-3" @default.
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