1
|
Hou W, Chen J, Wang Y. MRPL35 Induces Proliferation, Invasion, and Glutamine Metabolism in NSCLC Cells by Upregulating SLC7A5 Expression. THE CLINICAL RESPIRATORY JOURNAL 2024; 18:e13799. [PMID: 38987867 PMCID: PMC11236733 DOI: 10.1111/crj.13799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/14/2024] [Accepted: 06/05/2024] [Indexed: 07/12/2024]
Abstract
BACKGROUND Mitochondrial ribosomal protein L35 (MRPL35) has been reported to contribute to the growth of non-small cell lung cancer (NSCLC) cells. However, the functions and mechanisms of MRPL35 on glutamine metabolism in NSCLC remain unclear. METHODS The detection of mRNA and protein of MRPL35, ubiquitin-specific protease 39 (USP39), and solute carrier family 7 member 5 (SLC7A5) was conducted using qRT-PCR and western blotting. Cell proliferation, apoptosis, and invasion were evaluated using the MTT assay, EdU assay, flow cytometry, and transwell assay, respectively. Glutamine metabolism was analyzed by detecting glutamine consumption, α-ketoglutarate level, and glutamate production. Cellular ubiquitination analyzed the deubiquitination effect of USP39 on MRPL35. An animal experiment was conducted for in vivo analysis. RESULTS MRPL35 was highly expressed in NSCLC tissues and cell lines, and high MRPL35 expression predicted poor outcome in NSCLC patients. In vitro analyses suggested that MRPL35 knockdown suppressed NSCLC cell proliferation, invasion, and glutamine metabolism. Moreover, MRPL35 silencing hindered tumor growth in vivo. Mechanistically, USP39 stabilized MRPL35 expression by deubiquitination and then promoted NSCLC cell proliferation, invasion, and glutamine metabolism. In addition, MRPL35 positively affected SLC7A5 expression in NSCLC cells in vitro and in vivo. Moreover, the anticancer effects of MRPL35 silencing could be rescued by SLC7A5 overexpression in NSCLC cells. CONCLUSION MRPL35 expression was stabilized by USP39-induced deubiquitination in NSCLC cells, and knockdown of MRPL35 suppressed NSCLC cell proliferation, invasion, and glutamine metabolism in vitro and impeded tumor growth in vivo by upregulating SLC7A5, providing a promising therapeutic target for NSCLC.
Collapse
Affiliation(s)
- Wei Hou
- Respiratory DepartmentShaanxi Provincial Nuclear Industry 215 HospitalXianyangChina
| | - Juan Chen
- Respiratory DepartmentShaanxi Provincial Nuclear Industry 215 HospitalXianyangChina
| | - Yaoyuan Wang
- Respiratory DepartmentShaanxi Provincial Nuclear Industry 215 HospitalXianyangChina
| |
Collapse
|
2
|
Cheng Z, Xue K, Xiong C, Zheng Z, Li J, Qiao X. MRPS16 promotes lung adenocarcinoma growth via the PI3K/AKT/Frataxin signalling axis. J Cell Mol Med 2024; 28:e18166. [PMID: 38506080 PMCID: PMC10951875 DOI: 10.1111/jcmm.18166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 12/26/2023] [Accepted: 01/24/2024] [Indexed: 03/21/2024] Open
Abstract
Although MRPS16 is involved in cancer development, its mechanisms in developing LAUD remain unclear. Herein, qRT-PCR, WB and IHC were utilized for evaluating MRPS16 expression levels, while functional assays besides animal experiments were performed to measure MRPS16 effect on LAUD progression. Using WB, the MRPS16 effect on PI3K/AKT/Frataxin signalling pathway was tested. According to our study, MRPS16 was upregulated in LAUD and was correlated to the advanced TNM stage as well as poor clinical outcomes, which represent an independent prognostic factor. Based on functional assays, MRPS16 is involved in promoting LAUD growth, migration and invasion, which was validated further in subsequent analyses through PI3K/AKT/Frataxin pathway activation. Moreover, MRPS16-knockdown-mediated Frataxin overexpression was shown to restore the reduction in tumour cells proliferation, migration and invasion. Our results revealed that MRPS16 caused an aggressive phenotype to LAUD and was a poor prognosticator; thus, targeting MRPS16 may be effectual in LAUD treatment.
Collapse
Affiliation(s)
- Zaixing Cheng
- Department of Thoracic SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
| | - Kaming Xue
- Department of Traditional Chinese MedicineUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
| | - Cui Xiong
- Department of EndocrinologyUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
| | - Zhikun Zheng
- Department of Thoracic SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
| | - Jinsong Li
- Department of Thoracic SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
| | - Xinwei Qiao
- Department of Thoracic SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
| |
Collapse
|
3
|
Liang Y, He S, Tan Y, Liu Q, Zhao F, Liu T, Huang C, Lu X, Zheng S. In silico analyses of pan-squamous cell carcinoma unveiled the immunological implications of MRPL13, which had previously been under-recognized. Heliyon 2024; 10:e23582. [PMID: 38187248 PMCID: PMC10770563 DOI: 10.1016/j.heliyon.2023.e23582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 01/09/2024] Open
Abstract
The involvement of the mitochondrial ribosomal protein 13 (MRPL13) gene in the development of adenocarcinoma has been previously reported. However, the clinicopathological significance of MRPL13 in squamous cell carcinoma (SCC) remains poorly understood. To gain insight into the clinicopathological and immunological implications of MRPL13 expression in SCC, we conducted a bioinformatic analysis utilizing various available databases, including TIMER 2.0, Xiantao academic tool and TISIDB, attempting to evaluate the abnormal expression, prognosis and immunological correlation of MRPL13 in the pan-SCC setting. Subsequently, we conducted experimental verification using an esophageal squamous cell carcinoma (ESCC) tissue array subjected to multiplexed immunofluorescent (mIF) staining. The ESCC tissue array we used consists of 93 dots of ESCC and 86 dots of matched adjacent normal tissues (ANT). Data from in silico analyses showed that MRPL13 mRNA is significantly up-regulated and correlated with infiltration of CD8+ T cells in pan-SCC. However, in silico analyses did not support the prognostic role of MRPL13 in SCC. Consistently, data from the ESCC tissue array showed that MRPL13 was remarkably elevated in ESCC tissues relative to ANT in stroma, which was controlled by pan-cytokeratin (pan-CK) staining. In the epithelia, no significant difference was identified between ESCC and ANT. Furthermore, MRPL13 expression markedly correlated with the infiltration of CD8+ T cells in the stromal region but not in the epithelial region. Prognostically, no significant association was observed between MRPL13 expression and overall survival, regardless of epithelial or stromal section. Through these pan-SCC analyses, we have expanded the understanding of MRPL13 previously reported, in particular, underscoring the immunological involvement of MRPL13 in the tumor microenvironment of SCC that has been under-recognized before, suggesting that MRPL13 may regulate the infiltration of CD8+ T cells into the SCC microenvironment.
Collapse
Affiliation(s)
- Yan Liang
- Department of Pathology, Basic Medicine College, Xinjiang Medical University, Urumqi, 830017, China
| | - Shuo He
- Department of Pathology, Basic Medicine College, Xinjiang Medical University, Urumqi, 830017, China
| | - Yiyi Tan
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Qing Liu
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Feng Zhao
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Tao Liu
- Department of Clinical Laboratory, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Conggai Huang
- Department of Pathology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Xiaomei Lu
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Shutao Zheng
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, China
| |
Collapse
|
4
|
Ma X, Deng Z, Li Z, Ma T, Li G, Zhang C, Zhang W, Chang J. Leveraging a disulfidptosis/ferroptosis-based signature to predict the prognosis of lung adenocarcinoma. Cancer Cell Int 2023; 23:267. [PMID: 37946181 PMCID: PMC10634118 DOI: 10.1186/s12935-023-03125-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Disulfidptosis and Ferroptosis are two novel forms of cell death. Although their mechanisms differ, research has shown that there is a relationship between the two. Investigating the connection between these two forms of cell death can further deepen our understanding of the development and progression of cancer, and provide better prediction models for accurate prognosis. METHODS In this study, RNA sequencing (RNA-seq) data, clinical data, single nucleotide polymorphism (SNP) data, and single-cell sequencing data were obtained from public databases. We used weighted gene co-expression network analysis (WGCNA) and unsupervised clustering to identify new Disulfidptosis/Ferroptosis-Related Genes (DFRG), and constructed a LASSO COX prognosis model that was externally validated. To further explore this novel signature, pathway and function analysis was performed, and differences in gene mutation frequency between high- and low-risk groups were studied. Importantly, we also conducted research on immune checkpoint, immune cell infiltration levels and immune resistance indicators, in addition to analyzing real clinical immunotherapy data. RESULTS We have identified four optimal disulfidptosis/ferroptosis-related genes (ODFRGs) that are differentially expressed and associated with the prognosis of Lung Adenocarcinoma (LUAD). These genes include GMPR, MCFD2, MRPL13, and SALL2. Based on these ODFRGs, we constructed a robust prognostic model in this study, and the high-risk group showed significantly lower overall survival (OS) compared to the low-risk group. Furthermore, this model can also predict the immunotherapy outcomes of LUAD patients to some extent.
Collapse
Affiliation(s)
- Xiaoqing Ma
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
- Shandong First Medical University, Jinan, Shandong, China
| | - Zilin Deng
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
- Shandong First Medical University, Jinan, Shandong, China
| | - Zhen Li
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
- Shandong First Medical University, Jinan, Shandong, China
| | - Ting Ma
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
- Shandong First Medical University, Jinan, Shandong, China
| | - Guiqing Li
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
- Shandong First Medical University, Jinan, Shandong, China
| | - Cuijia Zhang
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
- Shandong First Medical University, Jinan, Shandong, China
| | - Wentao Zhang
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China.
- Shandong First Medical University, Jinan, Shandong, China.
| | - Jin Chang
- Department of Radiation Oncology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China.
- Shandong First Medical University, Jinan, Shandong, China.
| |
Collapse
|
5
|
Zhong X, He Z, Fan Y, Yin L, Hong Z, Tong Y, Bi Q, Zhu S. Multi-omics analysis of MRPL-13 as a tumor-promoting marker from pan-cancer to lung adenocarcinoma. Aging (Albany NY) 2023; 15:10640-10680. [PMID: 37827692 PMCID: PMC10599762 DOI: 10.18632/aging.205104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/08/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND As a member of the mitochondrial ribosomal protein family, mitochondrial ribosomal protein L13 (MRPL13) is responsible for synthesizing mitochondrial proteins in cells. Several studies have indicated that MRPL13 is associated with the proliferation cycle, migration ability, apoptosis and autophagy of cancer cells. However, a thorough examination of MRPL13 across cancers remains uncertain. Therefore, we tried to clarify the relationship between MRPL13 and pan-cancer, and verified it in lung adenocarcinoma by various methods. Finally, our research is expected to reveal new targets for pan-cancer treatment and improve the prognosis of cancer patients. METHODS Using bioinformatics tools, we quantified the differential expression of MRPL13 between cancer tissues and corresponding or noncorresponding normal tissues across cancers. We also analyzed the relationships between MRPL13 expression levels and several factors, including diagnosis, prognosis, mutation, functional signaling pathways, immune infiltration, RNA modification, and the relationship with cuproptosis-related genes. Furthermore, we studied the relationship between the expression level of MRPL13 across cancers and the change in cancer functional status through single-cell data. In addition, quantitative experiments (PCR and Western blot) proved that the expression of MRPL13 was significantly different between LUAD and control samples. Finally, the effect of knocking out MRPL13 on cancer cells was compared by gene silencing experiments. In summary, we used a combination of bioinformatics and experimental applications to study the potential roles of MRPL13 in cancer. RESULTS After conducting a multidimensional analysis, we found that the application of MRPL13 multigroup analysis can effectively improve the diagnostic efficiency of various cancers and predict the prognosis of cancer. Moreover, MRPL13 in pan-cancer is related to the cancer immune infiltration pattern, methylation level and cuproptosis-related genes. Furthermore, single-cell data analysis showed that the modules of metastasis, EMT, cell cycle, DNA repair, invasion, DNA damage and proliferation were positively correlated with the expression of MRPL13 in LUAD (Lung adenocarcinoma), while the modules of hypoxia and inflammation were negatively correlated. Moreover, through quantitative experiments, we observed higher expression of MRPL13 in cancer tissues at the RNA or protein level. Knockdown of MRPL13 in LUAD led to decreased cancer cell survival, delayed tumor division and migration, reduced invasion, and increased cancer cell apoptosis. CONCLUSIONS Our study demonstrates the potential of using MRPL13 as a molecular biomarker for diagnosing and suggesting the prognosis of certain malignant tumors. Furthermore, our research shows that MRPL13 may be an effective therapeutic target for lung adenocarcinoma.
Collapse
Affiliation(s)
- Xugang Zhong
- Center for Rehabilitation Medicine, Cancer Center, Department of Orthopedics, Zhejiang Provincial People’s Hospital affiliated to Qingdao University, Qingdao, Shandong, China
- Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Zeju He
- Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yong Fan
- Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Li Yin
- Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Zheping Hong
- Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yu Tong
- Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Qing Bi
- Center for Rehabilitation Medicine, Cancer Center, Department of Orthopedics, Zhejiang Provincial People’s Hospital affiliated to Qingdao University, Qingdao, Shandong, China
- Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Senbo Zhu
- Center for Rehabilitation Medicine, Department of Orthopedics, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| |
Collapse
|
6
|
王 炼, 夏 勇, 张 震, 刘 馨, 施 金, 王 月, 李 静, 张 小, 耿 志, 宋 雪, 左 芦. [High expression of MRPL13 promotes cell cycle progression and proliferation of gastric cancer cells by inhibiting p53 signaling to affect long-term prognosis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2023; 43:1558-1566. [PMID: 37814870 PMCID: PMC10563107 DOI: 10.12122/j.issn.1673-4254.2023.09.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Indexed: 10/11/2023]
Abstract
OBJECTIVE To determine the expression of mitochondrial ribosomal protein L13 (MRPL13) in gastric cancer and its impact on long-term prognosis and explore the possible mechanism. METHODS We analyzed MRPL13 expression level in gastric cancer and its association with the patients' prognosis based on the public cancer database the data of 100 gastric cancer patients undergoing radical gastrectomy in our hospital from January, 2014 to October, 2017. We further assessed the effects of MRPL13 overexpression and knockdown on proliferation and cell cycle of gastric cancer MGC-803 and SGC-7901 cells in vitro and on subcutaneous xenograft growth in nude mice. RESULTS Both bioinformatic analysis and the patients' data demonstrated that the expression level of MRPL13 was significantly higher in gastric cancer than in adjacent tissues (P<0.05) and positively correlated with peripheral blood Ki67, CEA and CA19-9 levels (P<0.05). High expression of MRPL13 was an independent risk factor affecting the 5-year survival rate of gastric cancer patients (HR: 3.284; 95% CI: 1.537-7.016). Gene set enrichment analysis suggested that MRPL13 was involved in cell cycle and p53 signaling. In cultured gastric cancer cells, MRPL13 overexpression significantly promoted cell proliferation, G1/S phase transition and the expressions of cyclin D1 and CDK6 (P<0.05), and MRPL13 knockdown produced the opposite effects (P<0.05). MRPL13 overexpression significantly promoted gastric cancer cell xenograft growth (P<0.05), and MRPL13 knockdown obviously inhibited tumor growth in nude mice (P<0.05). In both cultured gastric cancer cells and the xenografts in nude mice, MRPL13 overexpression significantly decreased while MRPL13 knockdown enhanced the expressions of p53 and p21 (P<0.05). CONCLUSION MRPL13 is highly expressed in gastric cancer and affects the long- term prognosis of the patients possibly by inhibiting p53 signaling to promote cancer cell proliferation and cell cycle progression.
Collapse
Affiliation(s)
- 炼 王
- 蚌埠医学院第一附属医院胃肠外科,安徽 蚌埠 233004Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
- 蚌埠医学院,安徽 蚌埠 233030Bengbu Medical College, Bengbu 233030, China
| | - 勇生 夏
- 蚌埠医学院第一附属医院胃肠外科,安徽 蚌埠 233004Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
- 蚌埠医学院,安徽 蚌埠 233030Bengbu Medical College, Bengbu 233030, China
| | - 震 张
- 蚌埠医学院第一附属医院胃肠外科,安徽 蚌埠 233004Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
- 蚌埠医学院,安徽 蚌埠 233030Bengbu Medical College, Bengbu 233030, China
| | - 馨悦 刘
- 蚌埠医学院,安徽 蚌埠 233030Bengbu Medical College, Bengbu 233030, China
- 组织移植安徽省重点实验室,安徽 蚌埠 233030Anhui Provincial Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu 233030, China
| | - 金冉 施
- 蚌埠医学院,安徽 蚌埠 233030Bengbu Medical College, Bengbu 233030, China
- 组织移植安徽省重点实验室,安徽 蚌埠 233030Anhui Provincial Key Laboratory of Tissue Transplantation, Bengbu Medical College, Bengbu 233030, China
| | - 月月 王
- 蚌埠医学院第一附属医院检验科,安徽 蚌埠 233004Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - 静 李
- 蚌埠医学院第一附属医院检验科,安徽 蚌埠 233004Clinical Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - 小凤 张
- 蚌埠医学院第一附属医院中心实验室,安徽 蚌埠 233004Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - 志军 耿
- 蚌埠医学院第一附属医院中心实验室,安徽 蚌埠 233004Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - 雪 宋
- 蚌埠医学院第一附属医院中心实验室,安徽 蚌埠 233004Central Laboratory, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - 芦根 左
- 蚌埠医学院第一附属医院胃肠外科,安徽 蚌埠 233004Department of Gastrointestinal Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
- 炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233030Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu 233030, China
| |
Collapse
|
7
|
Li XY, He XY, Zhao H, Qi L, Lu JJ. Identification of a novel therapeutic target for lung cancer: Mitochondrial ribosome protein L9. Pathol Res Pract 2023; 248:154625. [PMID: 37343379 DOI: 10.1016/j.prp.2023.154625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/23/2023]
Abstract
Lung cancer has a high fatality rate and incidence rate. At present, the initial and progress mechanism of lung cancer has not been completely elucidated and new therapeutic targets still need to be developed. In this study, the screening process was based on lung cancer expression profile data and survival analysis. Mitochondrial ribosome protein L9 (MRPL9) was upregulated in lung cancer tissues and related to the poor overall survival rate and recurrence-free survival rate of lung cancer patients. Knockdown of MRPL9 inhibited the proliferation, sphere-formation, and migration ability of lung cancer cells. MRPL9 was associated with the c-MYC signaling pathway, and lung cancer patients with high expression of both MRPL9 and MYC had a poor prognosis. Furthermore, c-MYC was associated with the epithelial-mesenchymal transition (EMT) regulatory protein zinc finger E-box binding homeobox 1 (ZEB1) by bioinformatics analysis. The relationship between ZEB1 and c-MYC was further confirmed by interfering with c-MYC expression. MRPL9 is a potential therapeutic target for lung cancer and exerts its biological functions by affecting the transcription factor c-MYC thereby regulating the EMT regulator ZEB1.
Collapse
Affiliation(s)
- Xin-Yuan Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Xin-Yu He
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Hong Zhao
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - Lu Qi
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China; Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Jin-Jian Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China; Department of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Macao, China; Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, University of Macau, Macao, China.
| |
Collapse
|
8
|
Wei D, Sun D, Sirera R, Afzal MZ, Leong TL, Li X, Wang Y. Overexpression of MRPL19 in predicting poor prognosis and promoting the development of lung adenocarcinoma. Transl Lung Cancer Res 2023; 12:1517-1538. [PMID: 37577299 PMCID: PMC10413030 DOI: 10.21037/tlcr-23-306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/07/2023] [Indexed: 08/15/2023]
Abstract
Background Mitochondrial ribosomal protein L19 (MRPL19) is a member of the mitochondrial ribosomal protein (MRP) family. MRPs have a role in the progression of many cancers. However, the role of MRPL19 in lung adenocarcinoma (LUAD) is yet unknown. Methods The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets, real-time polymerase chain reaction, and immunohistochemistry (IHC) were used to assess MRPL19 expression and clinical relevance. Gene Expression Profiling Interactive Analysis (GEPIA) and the online Kaplan-Meier (KM) Plotter database were used to determine the prognostic significance. Through use of LinkedOmics, genes that were coexpressed with MRPL19 and its regulators were identified. The biological roles of MRPL19 were investigated through R-implemented packages and RNA interference. The Tumor Immune Estimation Resource (TIMER) was employed to assess the connection between MRPL19 expression and infiltrated immune cells in LUAD. Results MRPL19 expression in LUAD was upregulated and was correlated with lymph node metastasis, differentiation level, and tumor status. MRPL19 was prognostic and associated with poor prognosis. Functional network analysis revealed that MRPL19 may be associated with the cell cycle, cell adhesion molecules, spliceosome, and T-helper cell differentiation and was regulated by several microRNA and the E2F family. The gene set enrichment analysis (GSEA) and protein-protein interaction (PPI) network indicated that MRPL19 was correlated with cancer proliferation signaling pathways. The immune infiltration analysis revealed a correlation between MRPL19 expression and the extent of B cells, CD4+ T cells, and dendritic cells' infiltration in LUAD. Additionally, MRPL19 knockdown in LUAD cells substantially reduced cell growth, migration, and invasion of malignant cells. Conclusions The poor prognosis and immunological infiltration in LUAD were significantly associated with MRPL19, which may have pro-oncogenic effects on the disease.
Collapse
Affiliation(s)
- Dong Wei
- Graduate School, Tianjin Medical University, Tianjin, China
- Department of Thoracic Surgery, the First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Daqiang Sun
- Department of Thoracic Surgery, Tianjin Chest Hospital of Nankai University, Tianjin, China
| | - Rafael Sirera
- Department of Biotechnology, Universitat Politècnica de València, València, Spain
| | - Muhammad Zubair Afzal
- Hematology-Oncology, Dartmouth-Hitchcock Medical Center, Medical Center Dr., Lebanon, NH, USA
| | - Tracy L. Leong
- Department of Respiratory Medicine, Austin Hospital, Heidelberg, Victoria, Australia
| | - Xin Li
- Department of Thoracic Surgery, Tianjin Chest Hospital of Nankai University, Tianjin, China
| | - Yuhang Wang
- Graduate School, Tianjin Medical University, Tianjin, China
| |
Collapse
|
9
|
Ma J, Sun L, Gao W, Li Y, Dong D. RNA binding protein: coordinated expression between the nuclear and mitochondrial genomes in tumors. J Transl Med 2023; 21:512. [PMID: 37507746 PMCID: PMC10386658 DOI: 10.1186/s12967-023-04373-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Mitochondria are the only organelles regulated by two genomes. The coordinated translation of nuclear DNA (nDNA) and mitochondrial DNA (mtDNA), which together co-encode the subunits of the oxidative phosphorylation (OXPHOS) complex, is critical for determining the metabolic plasticity of tumor cells. RNA-binding protein (RBP) is a post-transcriptional regulatory factor that plays a pivotal role in determining the fate of mRNA. RBP rapidly and effectively reshapes the mitochondrial proteome in response to intracellular and extracellular stressors, mediating the cytoplasmic and mitochondrial translation balance to adjust mitochondrial respiratory capacity and provide energy for tumor cells to adapt to different environmental pressures and growth needs. This review highlights the ability of RBPs to use liquid-liquid phase separation (LLPS) as a platform for translation regulation, integrating nuclear-mitochondrial positive and retrograde signals to coordinate cross-department translation, reshape mitochondrial energy metabolism, and promote the development and survival of tumor cells.
Collapse
Affiliation(s)
- Jiaoyan Ma
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Liankun Sun
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Weinan Gao
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Yang Li
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Delu Dong
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China.
| |
Collapse
|
10
|
Bao S, Wang X, Li M, Gao Z, Zheng D, Shen D, Liu L. Potential of Mitochondrial Ribosomal Genes as Cancer Biomarkers Demonstrated by Bioinformatics Results. Front Oncol 2022; 12:835549. [PMID: 35719986 PMCID: PMC9204274 DOI: 10.3389/fonc.2022.835549] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/27/2022] [Indexed: 12/15/2022] Open
Abstract
Next-generation sequencing and bioinformatics analyses have clearly revealed the roles of mitochondrial ribosomal genes in cancer development. Mitochondrial ribosomes are composed of three RNA components encoded by mitochondrial DNA and 82 specific protein components encoded by nuclear DNA. They synthesize mitochondrial inner membrane oxidative phosphorylation (OXPHOS)-related proteins and participate in various biological activities via the regulation of energy metabolism and apoptosis. Mitochondrial ribosomal genes are strongly associated with clinical features such as prognosis and foci metastasis in patients with cancer. Accordingly, mitochondrial ribosomes have become an important focus of cancer research. We review recent advances in bioinformatics research that have explored the link between mitochondrial ribosomes and cancer, with a focus on the potential of mitochondrial ribosomal genes as biomarkers in cancer.
Collapse
Affiliation(s)
- Shunchao Bao
- Department of Radiotherapy, Second Hospital of Jilin University, Changchun, China
| | - Xinyu Wang
- Department of Breast Surgery, Second Hospital of Jilin University, Changchun, China
| | - Mo Li
- Department of Radiotherapy, Second Hospital of Jilin University, Changchun, China
| | - Zhao Gao
- Nuclear Medicine Department, Second Hospital of Jilin University, Changchun, China
| | - Dongdong Zheng
- Department of Cardiovascular Surgery, Second Hospital of Jilin University, Changchun, China
| | - Dihan Shen
- Medical Research Center, Second Hospital of Jilin University, Changchun, China
| | - Linlin Liu
- Department of Radiotherapy, Second Hospital of Jilin University, Changchun, China
| |
Collapse
|