| Autor: |
Hao Wang, Jing Wu, Ruoyu Ling, Fengping Li, Qingbin Yang, Jiayong He, Xuetao Lei, Chaorui Wu, Guofan Zhang, Boyang Zheng, Yanmei Peng, Yihao Zhang, Hao Chen, Gengtai Ye, Guoxin Li |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Molecular Therapy: Oncolytics, Vol 24, Iss , Pp 547-560 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2372-7705 |
| DOI: |
10.1016/j.omto.2022.01.008 |
| Popis: |
Association of tumor microenvironment and immune checkpoint (e.g., PD-L1) is important for immune escape, impacting chemotherapy and immunotherapy efficacy. We aimed to investigate biomarkers and therapeutic targets against treatment resistance in gastric cancer. Abundances of tumor-infiltrating immune cells were estimated in multiple datasets. Three patient subgroups (A, B, and C) were identified based on seven types of PD-L1- and IFN-γ-associated immune cells. Patients yielded increased prognosis from subgroup A to C (p = 0.027). Subgroup A was characterized by high activated CD4+ memory T cell infiltration, while more resting CD4+ memory T cells were in subgroup C. Further, a risk score was developed for prognostication. Lipoma preferred partner (LPP), as the hub gene in subgroup-related regulatory network, was upregulated (p < 0.01) and was associated with high risk score (p < 0.001) and poor survival (p < 0.05). Bioinformatics analyses and experiments found that LPP expressed restrictively in fibroblasts and associated with activated CD4+ memory T cell infiltration and tumor growth. High-LPP patients yielded fewer benefits from chemotherapy or immunotherapy, compared with the low-LPP group. We finally identified 28 compounds as sensitive drugs for high-LPP patients. Our findings suggested LPP might be a biomarker for treatment response and therapeutic target in gastric cancer. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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