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Wu Y, Yao N, Du B, Zhu Y, Ji X, Lv C, Lai J. Ribosomal protein L22 like 1: a promising biomarker for lung adenocarcinoma. J Cancer 2024; 15:2549-2560. [PMID: 38577587 PMCID: PMC10988297 DOI: 10.7150/jca.91759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/15/2024] [Indexed: 04/06/2024] Open
Abstract
No studies have reported the effect of ribosomal protein L22 like 1 (RPL22L1) in lung adenocarcinoma (LUAD). Therefore, we aimed to systematically investigate the role of RPL22L1 in LUAD. The expression of RPL22L1 was analyzed using TCGA, GEO, TIMER, UALCAN databases, and validated by immunohistochemistry (IHC). Gene methylation analysis was performed using the UALCAN, GSCA and MethSurv databases. The immune infiltrates were investigated using the Single Sample Gene Set Enrichment Analysis (ssGSEA), TIMER database, and TISCH database. The results demonstrated that RPL22L1 was up-regulated in LUAD, and verified by IHC. Kaplan-Meier analysis suggested that patients with high RPL22L1 expression had poor prognosis. Multivariate analysis confirmed that RPL22L1 was an independent prognostic factor. Furthermore, RPL22L1 overexpression was associated with hypomethylation, and two CpGs of RPL22L1 were significantly associated with prognosis. Up-regulated RPL22L1 was enriched in MYC targets, E2F targets, G2M checkpoint, mTORC1 signaling, cell cycle, and so on. Moreover, RPL22L1 expression was negatively correlated with immune cell infiltration, and patients with high RPL22L1 expression had lower immune, stromal, and estimate scores. Single-cell analysis suggested that RPL22L1 might have a potential function in the tumor microenvironment (TME) of LUAD. In conclusion, RPL22L1 may be a promising biomarker for LUAD.
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Affiliation(s)
- Yahua Wu
- Department of Medical Oncology, Fujian Medical University Union Hospital, No. 29 Xinquan Street, Fuzhou, 350000, Fujian, China
| | - Na Yao
- Department of Medical Oncology, Fujian Medical University Union Hospital, No. 29 Xinquan Street, Fuzhou, 350000, Fujian, China
| | - Bin Du
- Department of Medical Oncology, Fujian Medical University Union Hospital, No. 29 Xinquan Street, Fuzhou, 350000, Fujian, China
| | - Yingjiao Zhu
- Department of Medical Oncology, Fujian Medical University Union Hospital, No. 29 Xinquan Street, Fuzhou, 350000, Fujian, China
| | - Xiaohui Ji
- Department of Medical Oncology, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Chengliu Lv
- Department of Medical Oncology, Fujian Medical University Union Hospital, No. 29 Xinquan Street, Fuzhou, 350000, Fujian, China
| | - Jinhuo Lai
- Department of Medical Oncology, Fujian Medical University Union Hospital, No. 29 Xinquan Street, Fuzhou, 350000, Fujian, China
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Yi X, Zhang C, Liu B, Gao G, Tang Y, Lu Y, Pan Z, Wang G, Feng W. Ribosomal protein L22-like1 promotes prostate cancer progression by activating PI3K/Akt/mTOR signalling pathway. J Cell Mol Med 2023; 27:403-411. [PMID: 36625246 PMCID: PMC9889667 DOI: 10.1111/jcmm.17663] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/24/2022] [Accepted: 12/16/2022] [Indexed: 01/11/2023] Open
Abstract
Prostate cancer (PCa) is one of the most common malignancies in men. Ribosomal protein L22-like1 (RPL22L1), a component of the ribosomal 60 S subunit, is associated with cancer progression, but the role and potential mechanism of RPL22L1 in PCa remain unclear. The aim of this study was to investigate the role of RPL22L1 in PCa progression and the mechanisms involved. Bioinformatics and immunohistochemistry analysis showed that the expression of RPL22L1 was significantly higher in PCa tissues than in normal prostate tissues. The cell function analysis revealed that RPL22L1 significantly promoted the proliferation, migration and invasion of PCa cells. The data of xenograft tumour assay suggested that the low expression of RPL22L1 inhibited the growth and invasion of PCa cells in vivo. Mechanistically, the results of Western blot proved that RPL22L1 activated PI3K/Akt/mTOR pathway in PCa cells. Additionally, LY294002, an inhibitor of PI3K/Akt pathway, was used to block this pathway. The results showed that LY294002 remarkably abrogated the oncogenic effect of RPL22L1 on PCa cell proliferation and invasion. Taken together, our study demonstrated that RPL22L1 is a key gene in PCa progression and promotes PCa cell proliferation and invasion via PI3K/Akt/mTOR pathway, thus potentially providing a new target for PCa therapy.
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Affiliation(s)
- Xiaoyu Yi
- School of Life Science and TechnologyWeifang Medical UniversityWeifangChina
| | - Chao Zhang
- Department of Urology SurgeryShandong Cancer Hospital and InstituteJinanChina,Department of Urology SurgeryShandong First Medical University and Shandong Academy of Medical SciencesJinanChina
| | - Baojie Liu
- School of Life Science and TechnologyWeifang Medical UniversityWeifangChina
| | - Guojun Gao
- Department of Urology SurgeryAffiliated Hospital of Weifang Medical UniversityWeifangChina
| | - Yaqi Tang
- School of Life Science and TechnologyWeifang Medical UniversityWeifangChina
| | - Yongzheng Lu
- School of Life Science and TechnologyWeifang Medical UniversityWeifangChina
| | - Zhifang Pan
- School of Life Science and TechnologyWeifang Medical UniversityWeifangChina
| | - Guohui Wang
- School of Life Science and TechnologyWeifang Medical UniversityWeifangChina
| | - Weiguo Feng
- School of Life Science and TechnologyWeifang Medical UniversityWeifangChina
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