1
|
Ding X, Liu H, Xu Q, Ji T, Chen R, Liu Z, Dai J. Shared biomarkers and mechanisms in idiopathic pulmonary fibrosis and non-small cell lung cancer. Int Immunopharmacol 2024; 134:112162. [PMID: 38703565 DOI: 10.1016/j.intimp.2024.112162] [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: 03/25/2024] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 05/06/2024]
Abstract
BACKGROUND Epidemiological evidence has indicated the occurrence of idiopathic pulmonary fibrosis (IPF) with coexisting lung cancer is not a coincidence. The pathogenic mechanisms shared between IPF and non-small cell lung cancer (NSCLC) at the transcriptional level remain elusive and need to be further elucidated. METHODS IPF and NSCLC datasets of expression profiles were obtained from the GEO database. Firstly, to detect the shared dysregulated genes positively correlated with both IPF and NSCLC, differentially expressed analysis and WGCNA analysis were carried out. Functional enrichment and the construction of protein-protein network were employed to reveal pathogenic mechanisms related to two diseases mediated by the shared dysregulated genes. Then, the LASSO regression was adopted for screening critical candidate biomarkers for two disorders. Moreover, ROC curves were applied to evaluate the diagnostic value of the candidate biomarkers in both IPF and NSCLC. RESULTS The 20 shared dysregulated genes positively correlated with both IPF and NSCLC were identified after intersecting differentially expressed analysis and WGCNA analysis. Functional enrichment revealed the 20 shared genes mostly enriched in extracellular region, which is critical in the organization of extracellular matrix. The protein-protein networks unrevealed the interaction of the 11 shared genes involving in collagen deposition and the connection between PYCR1 with PSAT1. PSAT1, PYCR1, COL10A1 and KIAA1683 were screened by the LASSO regression. ROC curves comprising area under the curve (AUC) verified the potential diagnostic value of PSAT1 and COL10A1 in both IPF and NSCLC. CONCLUSIONS We revealed dysregulated extracellular matrix through aberrant expression of the relevant genes, which provided further understanding for the common molecular mechanisms predisposing the occurrence of both IPF and NSCLC.
Collapse
Affiliation(s)
- Xiaorui Ding
- Department of Pulmonary and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, Jiangsu, China
| | - Huarui Liu
- Department of Pulmonary and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, Jiangsu, China
| | - Qinghua Xu
- Department of Pulmonary and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, Jiangsu, China
| | - Tong Ji
- Department of Pulmonary and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, Jiangsu, China
| | - Ranxun Chen
- Department of Pulmonary and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, Jiangsu, China
| | - Zhengcheng Liu
- Department of Thoracic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, Jiangsu, China.
| | - Jinghong Dai
- Department of Pulmonary and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, Jiangsu, China.
| |
Collapse
|
2
|
Xiao S, Chen J, Wei Y, Song W. BHLHE41 inhibits bladder cancer progression via regulation of PYCR1 stability and thus inactivating PI3K/AKT signaling pathway. Eur J Med Res 2024; 29:302. [PMID: 38811952 PMCID: PMC11134742 DOI: 10.1186/s40001-024-01889-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/18/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND The basic helix-loop-helix family member e41 (BHLHE41) is frequently dysregulated in tumors and plays a crucial role in malignant progression of various cancers. Nevertheless, its specific function and underlying mechanism in bladder cancer (BCa) remain largely unexplored. METHODS The expression levels of BHLHE41 in BCa tissues and cells were examined by qRT-PCR and western blot assays. BCa cells stably knocking down or overexpressing BHLHE41 were constructed through lentivirus infection. The changes of cell proliferation, cell cycle distribution, migration, and invasion were detected by CCK-8, flow cytometry, wound healing, transwell invasion assays, respectively. The expression levels of related proteins were detected by western blot assay. The interaction between BHLHE41 and PYCR1 was explored by co-immunoprecipitation analysis. RESULTS In this study, we found that BHLHE41 was lowly expressed in bladder cancer tissues and cell lines, and lower expression of BHLHE41 was associated with poor overall survival in bladder cancer patients. Functionally, by manipulating the expression of BHLHE41, we demonstrated that overexpression of BHLHE41 significantly retarded cell proliferation, migration, invasion, and induced cell cycle arrest in bladder cancer through various in vitro and in vivo experiments, while silence of BHLHE41 caused the opposite effect. Mechanistically, we showed that BHLHE41 directly interacted with PYCR1, decreased its stability and resulted in the ubiquitination and degradation of PYCR1, thus inactivating PI3K/AKT signaling pathway. Rescue experiments showed that the effects induced by BHLHE41 overexpression could be attenuated by further upregulating PYCR1. CONCLUSION BHLHE41 might be a useful prognostic biomarker and a tumor suppressor in bladder cancer. The BHLHE41/PYCR1/PI3K/AKT axis might be a potential therapeutic target for bladder cancer intervention.
Collapse
Affiliation(s)
- Shuai Xiao
- Department of Urology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410011, China
| | - Junjie Chen
- Department of Urology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410011, China
| | - Yongbao Wei
- Department of Urology, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China.
| | - Wei Song
- Department of Urology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410011, China.
| |
Collapse
|
3
|
Meeks KR, Ji J, Protopopov MV, Tarkhanova OO, Moroz YS, Tanner JJ. Novel Fragment Inhibitors of PYCR1 from Docking-Guided X-ray Crystallography. J Chem Inf Model 2024; 64:1704-1718. [PMID: 38411104 PMCID: PMC11058006 DOI: 10.1021/acs.jcim.3c01879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
The proline biosynthetic enzyme Δ1-pyrroline-5-carboxylate (P5C) reductase 1 (PYCR1) is one of the most consistently upregulated enzymes across multiple cancer types and central to the metabolic rewiring of cancer cells. Herein, we describe a fragment-based, structure-first approach to the discovery of PYCR1 inhibitors. Thirty-seven fragment-like carboxylic acids in the molecular weight range of 143-289 Da were selected from docking and then screened using X-ray crystallography as the primary assay. Strong electron density was observed for eight compounds, corresponding to a crystallographic hit rate of 22%. The fragments are novel compared to existing proline analog inhibitors in that they block both the P5C substrate pocket and the NAD(P)H binding site. Four hits showed inhibition of PYCR1 in kinetic assays, and one has lower apparent IC50 than the current best proline analog inhibitor. These results show proof-of-concept for our inhibitor discovery approach and provide a basis for fragment-to-lead optimization.
Collapse
Affiliation(s)
- Kaylen R Meeks
- Department of Biochemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Juan Ji
- Department of Biochemistry, University of Missouri, Columbia, Missouri 65211, United States
| | | | - Olga O Tarkhanova
- Chemspace LLC, 85 Chervonotkatska Street, Suite 1, Kyïv 02094, Ukraine
| | - Yurii S Moroz
- Chemspace LLC, 85 Chervonotkatska Street, Suite 1, Kyïv 02094, Ukraine
- Department of Chemistry, Taras Shevchenko National University of Kyïv, Kyïv 01601, Ukraine
| | - John J Tanner
- Department of Biochemistry, University of Missouri, Columbia, Missouri 65211, United States
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| |
Collapse
|
4
|
Wang Y, Qi H, Wang T, Zhang W, Shi X, Zhan Q, Li Q, Zhong M. STAT3 and STAT6 polymorphisms predict the severity of adverse reactions in Chinese NSCLC patients receiving EGFR-TKIs therapy. J Chemother 2024; 36:61-71. [PMID: 37151185 DOI: 10.1080/1120009x.2023.2203610] [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: 09/14/2022] [Accepted: 04/12/2023] [Indexed: 05/09/2023]
Abstract
A total of 162 non-small cell lung cancer (NSCLC) patients were divided into discovery (N = 68) and validation (N = 94) groups. Nine Janus kinase/Signal transducer and activator of transcription (JAK/STAT) pathway-related single nucleotide polymorphisms were selected to explore the potential associations between genetic polymorphisms and adverse drug reactions (ADRs). The TT genotype of STAT6 rs324011 was significantly associated with severe ADRs in the recessive genetic model (TT vs. CC + CT, OR = 13.5, 95% CI = 2.12-86.09, p = 0.006 in the discovery group; OR = 8.41, 95% CI = 1.95-36.19, p = 0.004 in the validation group). The T allele was associated with a higher incidence of severe ADRs than was the C allele of rs324011 (OR = 3.67, 95% CI = 1.46-9.19, p = 0.006 in the discovery group; OR = 3.17, 95% CI = 1.44-6.99, p = 0.004 in the validation group). Patients with the CC genotype in STAT3 rs1053023 (and rs1053005) or the TT genotype of STAT6 rs324011 were likely to experience severe epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) related ADRs.
Collapse
Affiliation(s)
- Yan Wang
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Huijie Qi
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Tianxiao Wang
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenxin Zhang
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaojin Shi
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Qiong Zhan
- Department of Oncology, Huashan Hospital, Fudan University, Shanghai, China
| | - Qunyi Li
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| | - Mingkang Zhong
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
5
|
Wu G, Qin S, Gu K, Zhou Y. PYCR2, induced by c-Myc, promotes the invasiveness and metastasis of breast cancer by activating AKT signalling pathway. Int J Biochem Cell Biol 2024; 166:106506. [PMID: 38101533 DOI: 10.1016/j.biocel.2023.106506] [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: 08/08/2023] [Revised: 11/17/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Pyrroline-5-carboxylate reductase 2 (PYCR2) expression is aberrantly upregulated in colon cancer. However, the functions and underlying mechanisms of PYCR2 in breast cancer remain elusive. The primary objective of the present study was to elucidate the function of PYCR2 in breast cancer and investigate whether PYCR2 may be transcriptionally regulated by c-Myc to activate the AKT signaling pathway. METHODS Immunohistochemical analysis was performed to examine the expression of PYCR2 in breast cancer and adjacent non-cancerous tissues. Western blot and RT-qPCR were utilized to detect PYCR2 expression in breast cancer cells. Cellular functionalities were evaluated through Transwell assays in vitro and lung metastasis formation assays in vivo. Moreover, the impact of PYCR2 on the activation of AKT signaling was determined through western blot and immunohistochemistry analysis. The transcriptional regulation of PYCR2 expression by c-Myc was evaluated via both western blot analysis and luciferase gene reporter assay. RESULTS PYCR2 overexpression was noted in breast cancer. Silencing PYCR2 expression attenuated the invasive and metastatic abilities of breast cancer cells. Furthermore, the activation of the AKT signaling pathway is indispensable for the promotion of invasion and metastasis mediated by PYCR2. Lastly, the binding of c-Myc to the promoter sequence of PYCR2 resulted in the upregulation of PYCR2 transcription. CONCLUSION Taken together, these results indicate that PYCR2 is transcriptionally regulated by c-Myc and promotes invasion and metastasis in breast cancer through the activation of the AKT pathway.
Collapse
Affiliation(s)
- Gang Wu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China.
| | | | - Ke Gu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China.
| | - Yanjun Zhou
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, China.
| |
Collapse
|
6
|
Xu X, Zhang G, Chen Y, Xu W, Liu Y, Ji G, Xu H. Can proline dehydrogenase-a key enzyme involved in proline metabolism-be a novel target for cancer therapy? Front Oncol 2023; 13:1254439. [PMID: 38023181 PMCID: PMC10661406 DOI: 10.3389/fonc.2023.1254439] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Emerging evidence suggests that proline metabolism is important for regulating the survival and death of different types of cancer cells. Proline dehydrogenase (PRODH), an enzyme catalyzing proline catabolism, and the degradation products of proline by PRODH, such as ATP and ROS, are known to play critical roles in cancer progression. Notably, the role of PRODH in cancer is still complicated and unclear, and primarily depends on the cancer type and tumor microenvironment. For instance, PRODH induces apoptosis and senescence through ROS signaling in different types of cancers, while as a protumor factor, PRODH promotes malignant phenotypes of certain tumors under stresses such as hypoxia. In order to assess whether PRODH can serve as a novel target for cancer therapy, we will provide an overview of the biological functions of PRODH and its double-edged role in cancer in this article.
Collapse
Affiliation(s)
- Xiangyuan Xu
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, China
| | - Guangtao Zhang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yijia Chen
- Department of Gynecology, LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Weina Xu
- Shanghai Pudong New Area Zhoujiadu Community Health Service Center, Shanghai, China
| | - Yujing Liu
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, China
| | - Guang Ji
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, China
| | - Hanchen Xu
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Frontiers Science Center of Disease and Syndrome Biology of Inflammatory Cancer Transformation, Shanghai, China
| |
Collapse
|
7
|
Cui B, He B, Huang Y, Wang C, Luo H, Lu J, Su K, Zhang X, Luo Y, Zhao Z, Yang Y, Zhang Y, An F, Wang H, Lam EWF, Kelley KW, Wang L, Liu Q, Peng F. Pyrroline-5-carboxylate reductase 1 reprograms proline metabolism to drive breast cancer stemness under psychological stress. Cell Death Dis 2023; 14:682. [PMID: 37845207 PMCID: PMC10579265 DOI: 10.1038/s41419-023-06200-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 09/21/2023] [Accepted: 09/28/2023] [Indexed: 10/18/2023]
Abstract
Cancer stem-like cells (CSCs) contribute to cancer metastasis, drug resistance and tumor relapse, yet how amino acid metabolism promotes CSC maintenance remains exclusive. Here, we identify that proline synthetase PYCR1 is critical for breast cancer stemness and tumor growth. Mechanistically, PYCR1-synthesized proline activates cGMP-PKG signaling to enhance cancer stem-like traits. Importantly, cGMP-PKG signaling mediates psychological stress-induced cancer stem-like phenotypes and tumorigenesis. Ablation of PYCR1 markedly reverses psychological stress-induced proline synthesis, cGMP-PKG signaling activation and cancer progression. Clinically, PYCR1 and cGMP-PKG signaling components are highly expressed in breast tumor specimens, conferring poor survival in breast cancer patients. Targeting proline metabolism or cGMP-PKG signaling pathway provides a potential therapeutic strategy for breast patients undergoing psychological stress. Collectively, our findings unveil that PYCR1-enhanced proline synthesis displays a critical role in maintaining breast cancer stemness.
Collapse
Affiliation(s)
- Bai Cui
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Bin He
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, Guangzhou, China
| | - Yanping Huang
- Department of Oncology, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Cenxin Wang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Huandong Luo
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Jinxin Lu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Keyu Su
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Xiaoyu Zhang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Yuanyuan Luo
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Zhuoran Zhao
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Yuqing Yang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Yunkun Zhang
- Department of Pathology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Fan An
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Hong Wang
- Department of Orthopaedics, The Central Hospital of Dalian University of Technology, Dalian, China
| | - Eric W-F Lam
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Keith W Kelley
- Department of Pathology, College of Medicine and Department of Animal Sciences, College of ACES, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Ling Wang
- Department of Oncology, the First Affiliated Hospital of Dalian Medical University, Dalian, China.
| | - Quentin Liu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China.
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, Guangzhou, China.
| | - Fei Peng
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China.
| |
Collapse
|
8
|
Zhang L, Zhao X, Wang E, Yang Y, Hu L, Xu H, Zhang B. PYCR1 promotes the malignant progression of lung cancer through the JAK-STAT3 signaling pathway via PRODH-dependent glutamine synthesize. Transl Oncol 2023; 32:101667. [PMID: 37018868 PMCID: PMC10106966 DOI: 10.1016/j.tranon.2023.101667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/22/2023] [Accepted: 03/31/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Lung cancer is a serious threat to human life. It is of great significance to elucidate the pathogenesis of lung cancer and search for new markers. This study evaluate the clinical value of pyrroline-5-carboxylate reductase 1 (PYCR1) and explore its role and mechanisms in the malignant progression of lung cancer. METHODS PYCR1 expression and its relationship with prognosis were analyzed using a bioinformatics database. Enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry were utilized to examine the expression of PYCR1 in lung cancer tissues and peripheral blood. PYCR1-overexpressing lung cancer cells were constructed, then the cell proliferative, migration, and invasion ability was examined by the MTT and Transwell assays. siRNA against PRODH and STAT3 inhibitor sttatic was used to further elucidate the underlying mechanisms. Luciferase and CHIP assays were carried out for validate the how PYCR1 regulated PD-L1 expression via STAT3. Xenograft experiment was performed to determine the role of PYCR1 in vivo. RESULTS Database analysis showed that PYCR1 expression was significantly increased in lung cancer tissues, and its high expression predicted poor prognosis. Lung cancer tissue and peripheral blood of patients showed obviously increased PYCR1 expression, and the sensitivity and specificity of serum PYCR1 in the diagnosis of lung cancer were 75.7% and 60%, respectively. PYCR1 overexpression enhanced the proliferative, migration, and invasion abilities of lung cancer cells. Both PRODH silence and stattic effectively attenuated the function of PYCR1. Animal experiment and IHC data indicated that PYCR1 could activated STAT3 phosphorylation and PD-L1, as well as suppressed T cell infiltration in lung cancer. Finally, we also validated that PYCR1 promoted PD-L1 transcription by elevating STAT3 binding to the gene promoter. CONCLUSION PYCR1 has certain value in the diagnosis and prognosis of lung cancer. Moreover, through regulating JAK-STAT3 signaling pathway, PYCR1 significantly participated in process of lung cancer progression via the metabolism link between proline and glutamine, indicating that PYCR1 might be also a novel therapeutic target.
Collapse
|
9
|
Hu Y, Liu Y, Ma C, Ai K. MRPL12 Acts as A Novel Prognostic Biomarker Involved in Immune Cell Infiltration and Tumor Progression of Lung Adenocarcinoma. Int J Mol Sci 2023; 24:ijms24032762. [PMID: 36769082 PMCID: PMC9917664 DOI: 10.3390/ijms24032762] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/25/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
Mitochondrial ribosomal protein L7/L12 (MRPL12) is a member of the mitochondrial ribosomal proteins (MRPs). However, the biological function of MRPL12 in lung adenocarcinoma (LUAD) remains unclear. The expression and prognostic value of MRPL12 in LUAD were systematically analyzed using UALCAN, TIMER, HPA, Kaplan-Meier plotter, and GEPIA databases. The relationship between MRPL12 and immune infiltrates was investigated using TIMER and TISIDB databases. The clinical significance of MRPL12 in LUAD patients was validated using a tissue microarray (TMA). Cellular functional experiments were carried out to examine the influences of MRPL12 knockdown on cell proliferation, migration, and invasion. MRPL12 was significantly upregulated in LUAD samples, and high MRPL12 expression was correlated with worse prognosis. MRPL12 expression was markedly associated with immunomodulators, chemokines, and infiltration levels of multiple immune cells. Furthermore, TMA results confirm the upregulation of MRPL12 expression in LUAD, and MRPL12 was identified as an independent prognostic factor in LUAD patients. MRPL12 knockdown inhibited proliferation, migration, and invasion of LUAD cells. These data indicate that MRPL12 is a prognostic biomarker and correlated with immune infiltrates in LUAD. Therefore, MRPL12 shows potential as a therapeutic target for LUAD.
Collapse
|
10
|
Liu Y, Ouyang Y, Feng Z, Jiang Z, Ma J, Zhou X, Cai C, Han Y, Zeng S, Liu S, Shen H. RASGRP2 is a potential immune-related biomarker and regulates mitochondrial-dependent apoptosis in lung adenocarcinoma. Front Immunol 2023; 14:1100231. [PMID: 36817422 PMCID: PMC9936229 DOI: 10.3389/fimmu.2023.1100231] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
Background Ras guanine nucleotide-releasing protein 2 (RASGRP2), one of the guanine nucleotide exchange factors (GEFs), has attracted much attention in recent years. However, the correlation between RASGRP2 and immune infiltration and malignant features in lung adenocarcinoma (LUAD) has rarely been mentioned. Methods The Limma package and the LASSO regression model were performed to screen for differentially expressed genes. Data from the TCGA and 5 GEO databases were used to explore the expression level of RASGRP2 in LUAD patients. A weighted co-expression network and LinkFinder module were established to find the related genes of RASGRP2. The ESTIMATE algorithm was used to analyze the correlation between RASGRP2 and immune infiltration in LUAD. Tumor-infiltrating immune cells were sorted and sequenced at the single-cell level to analyze differences in RASGRP2. Real-time PCR and immunohistochemistry were performed in the real-world cohort to verify the expression of RASGRP2 and its correlation with immune-related genes. Clone formation and EdU assays were used to verify the proliferation ability. The proportion of apoptotic cells was analyzed by flow cytometry. Observation of mitochondrial membrane potential (MMP) changes by fluorescence microscopy. Results Our results suggested that decreased RASGRP2 was associated with worse clinical parameters and prognosis in LUAD patients. And we constructed a FLI1-HSA-miR-1976-RASGRP2 transcriptional network to support the role of RASGRP2. Enrichment analysis revealed that RASGRP2 was involved in lymphocyte activation and leukocyte adhesion. RASGRP2 was found to be positively correlated with the infiltration of most immune cells, immunoregulators, and chemokines in a subsequent study. Meanwhile, the real-world cohort confirmed that the expression levels of PDCD1, CTLA4, CD40LG, CCL14, CXCR5, and CCR7 were higher in the high-RASGRP2 expression group. Cytological experiments proved that RASGRP2 inhibited cell proliferation in LUAD by regulating mitochondrial-dependent apoptosis. Conclusion RASGRP2 was a potential immune-related biomarker of LUAD. In addition, RASGRP2 was involved in the malignant progression of LUAD through the regulation of mitochondrial-dependent apoptosis.
Collapse
Affiliation(s)
- Yongting Liu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanhong Ouyang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Emergency, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Ziyang Feng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhaohui Jiang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiayao Ma
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xin Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Changjing Cai
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ying Han
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shan Zeng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shanshan Liu
- Department of Radiotherapy, Tianjin First Central Hospital, Tianjin, China
| | - Hong Shen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
11
|
Hou Y, Xiang B, Yang Z, Liu J, Xu D, Geng L, Zhan M, Xu Y, Zhang B. Down-regulation of interleukin-2 predicts poor prognosis and associated with immune escape in lung adenocarcinoma. Int J Immunopathol Pharmacol 2023; 37:3946320231202748. [PMID: 37731383 PMCID: PMC10515527 DOI: 10.1177/03946320231202748] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 09/05/2023] [Indexed: 09/22/2023] Open
Abstract
Background and Objective: Lung adenocarcinoma (LUAD) is the most common subtype of lung cancer and has a poor prognosis. Interleukin-2 (IL2) is a cytokine that stimulates lymphocyte proliferation. However, its role in LUAD remains unclear. Methods: The UALCAN, human protein atlas (HPA), and tumor immune estimation resource (TIMER) databases were used to investigate IL2 expression in samples from patients with LUAD. The HPA, PrognoScan, and Kaplan-Meier plotter databases were used to examine the prognostic value of IL2 in LUAD. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses were performed to analyze IL2-interacting genes identified through the GeneMANIA database. TIMER was used to analyze the correlation of IL2 expression with immune cell infiltration and immune checkpoint expression levels in LUAD. Results: Bioinformatic analysis using the TIMER, The University of Alabama at Birmingham Cancer data analysis Portal (UALCAN), and HPA public databases showed that IL2 expression was lower in patients with LUAD than in the normal control group. Moreover, patients with low IL2 expression exhibited poor overall survival. Furthermore, IL2 expression was significantly positively correlated with various immune cells, including B cells, CD8+ T cells, CD4+ T cells, macrophages, neutrophils, and dendritic cells, in patients with LUAD. Additionally, IL2 expression was markedly positively associated with the above-mentioned immune cells. Furthermore, IL2 expression was positively correlated with PD-1, PD-L1, and CTLA-4 expression. Conclusion: Our results indicate that down-regulation of IL2 predicts poor prognosis and is associated with immune escape in LUAD, and IL2 could serve as a potential novel prognostic biomarker of LUAD.
Collapse
Affiliation(s)
- Yongwang Hou
- Clinical Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Baoli Xiang
- Respiratory Department, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Zhicong Yang
- Central Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Jiangmin Liu
- Clinical Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Dandan Xu
- Central Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Lina Geng
- Clinical Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Minghua Zhan
- Clinical Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Yuhuan Xu
- Clinical Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Bin Zhang
- Clinical Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| |
Collapse
|
12
|
Kurokawa GA, Hamamoto Filho PT, Delafiori J, Galvani AF, de Oliveira AN, Dias-Audibert FL, Catharino RR, Pardini MIMC, Zanini MA, Lima EDO, Ferrasi AC. Differential Plasma Metabolites between High- and Low-Grade Meningioma Cases. Int J Mol Sci 2022; 24:ijms24010394. [PMID: 36613836 PMCID: PMC9820229 DOI: 10.3390/ijms24010394] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/02/2022] [Accepted: 12/09/2022] [Indexed: 12/28/2022] Open
Abstract
Meningiomas (MGMs) are currently classified into grades I, II, and III. High-grade tumors are correlated with decreased survival rates and increased recurrence rates. The current grading classification is based on histological criteria and determined only after surgical tumor sampling. This study aimed to identify plasma metabolic alterations in meningiomas of different grades, which would aid surgeons in predefining the ideal surgical strategy. Plasma samples were collected from 51 patients with meningioma and classified into low-grade (LG) (grade I; n = 43), and high-grade (HG) samples (grade II, n = 5; grade III, n = 3). An untargeted metabolomic approach was used to analyze plasma metabolites. Statistical analyses were performed to select differential biomarkers among HG and LG groups. Metabolites were identified using tandem mass spectrometry along with database verification. Five and four differential biomarkers were identified for HG and LG meningiomas, respectively. To evaluate the potential of HG MGM metabolites to differentiate between HG and LG tumors, a receiving operating characteristic curve was constructed, which revealed an area under the curve of 95.7%. This indicates that the five HG MGM metabolites represent metabolic alterations that can differentiate between LG and HG meningiomas. These metabolites may indicate tumor grade even before the appearance of histological features.
Collapse
Affiliation(s)
- Gabriel A. Kurokawa
- Laboratory of Molecular Analysis and Neuro-oncology, Department of Internal Medicine, Botucatu Medical School, São Paulo State University, Botucatu 18618-970, Brazil
| | - Pedro T. Hamamoto Filho
- Laboratory of Molecular Analysis and Neuro-oncology, Department of Internal Medicine, Botucatu Medical School, São Paulo State University, Botucatu 18618-970, Brazil
- Department of Neurology, Psychology and Psychiatry, Botucatu Medical School, São Paulo State University, Botucatu 18618-970, Brazil
| | - Jeany Delafiori
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas, Campinas 13083-877, Brazil
| | - Aline F. Galvani
- Laboratory of Molecular Analysis and Neuro-oncology, Department of Internal Medicine, Botucatu Medical School, São Paulo State University, Botucatu 18618-970, Brazil
| | - Arthur N. de Oliveira
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas, Campinas 13083-877, Brazil
| | - Flávia L. Dias-Audibert
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas, Campinas 13083-877, Brazil
| | - Rodrigo R. Catharino
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas, Campinas 13083-877, Brazil
| | - Maria Inês M. C. Pardini
- Laboratory of Molecular Analysis and Neuro-oncology, Department of Internal Medicine, Botucatu Medical School, São Paulo State University, Botucatu 18618-970, Brazil
| | - Marco A. Zanini
- Department of Neurology, Psychology and Psychiatry, Botucatu Medical School, São Paulo State University, Botucatu 18618-970, Brazil
| | - Estela de O. Lima
- Laboratory of Molecular Analysis and Neuro-oncology, Department of Internal Medicine, Botucatu Medical School, São Paulo State University, Botucatu 18618-970, Brazil
- Correspondence: ; Tel.: +55-14-3880-1453
| | - Adriana C. Ferrasi
- Laboratory of Molecular Analysis and Neuro-oncology, Department of Internal Medicine, Botucatu Medical School, São Paulo State University, Botucatu 18618-970, Brazil
| |
Collapse
|
13
|
Ye L, Wang L, Zeng Y. LINC00511
aggravates the malignancy of lung adenocarcinoma through sponging
microRNA miR
‐4739 to regulate pyrroline‐5‐carboxylate reductase 1 expression. J Clin Lab Anal 2022; 36:e24760. [DOI: 10.1002/jcla.24760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/15/2022] Open
Affiliation(s)
- Lu Ye
- Department of Oncology, The Second Affiliated Hospital of Chengdu Medical College China National Nuclear Corporation 416 Hospital Chengdu China
| | - Linxiu Wang
- Department of Orthopedics, The Second Affiliated Hospital of Chengdu Medical College China National Nuclear Corporation 416 Hospital Chengdu China
| | - Yu Zeng
- Department of Oncology, Jintang First People's Hospital West China Hospital Sichuan University Jintang Hospital Chengdu China
| |
Collapse
|
14
|
Li Y, Xu J, Bao P, Wei Z, Pan L, Zhou J, Wang W. Survival and clinicopathological significance of PYCR1 expression in cancer: A meta-analysis. Front Oncol 2022; 12:985613. [PMID: 36119513 PMCID: PMC9480090 DOI: 10.3389/fonc.2022.985613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/08/2022] [Indexed: 11/29/2022] Open
Abstract
Background Proline metabolism is closely related to the occurrence and development of cancer. Δ1-Pyrroline-5-carboxylate reductase (PYCR) is the last enzyme in proline biosynthesis. As one of the enzyme types, PYCR1 takes part in the whole process of the growth, invasion, and drug resistance of cancer cells. This study investigated PYCR1 expressions in cancers together with their relationship to clinical prognosis. Methods A thorough database search was performed in PubMed, EMBASE, and Cochrane Library. RevMan5.3 software was used for the statistical analysis. Results Eight articles were selected, and 728 cancer patients were enrolled. The cancer types include lung, stomach, pancreatic ductal adenocarcinoma, hepatocellular carcinoma, and renal cell carcinoma. The meta-analysis results showed that the expression of PYCR1 was higher in the clinical stage III–IV group than that in the clinical stage I–II group (OR = 1.67, 95%CI: 1.03–2.71), higher in the lymph node metastasis group than in the non-lymph node metastasis group (OR = 1.57, 95%CI: 1.06–2.33), and higher in the distant metastasis group than in the non-distant metastasis group (OR = 3.46, 95%CI: 1.64–7.29). However, there was no statistical difference in PYCR1 expression between different tumor sizes (OR = 1.50, 95%CI: 0.89–2.53) and degrees of differentiation (OR = 0.82, 95%CI: 0.54–1.24). Conclusion PYCR1 had a high expression in various cancers and was associated with cancer volume and metastasis. The higher the PYCR1 expression was, the poorer the cancer prognosis was. The molecular events and biological processes mediated by PYCR1 might be the underlying mechanisms of metastasis.
Collapse
Affiliation(s)
- Yue Li
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Jiahuan Xu
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | | | - Zhijing Wei
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Lei Pan
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Jiawei Zhou
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Wei Wang
- Department of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
- *Correspondence: Wei Wang,
| |
Collapse
|
15
|
Wang Q, Xie Z, Li C, Xu C, Ding C, Ju S, Chen J, Cui Z, Chen C, Gu B, Wei T, Zhao J. CRIF1 promotes the progression of non-small-cell lung cancer by SIRT3- mediated deacetylation of PYCR1. J Mol Histol 2022; 53:657-667. [PMID: 35716330 DOI: 10.1007/s10735-022-10075-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 04/27/2022] [Indexed: 10/18/2022]
Abstract
Lung cancer is the cancer with the highest mortality in the world. So further exploration of the pathogenesis of lung cancer is of great significance. In this study, the specific role and related mechanism of CRIF1 in non-small cell lung cancer (NSCLC) were explored in this research. TheRT-PCR, western blot and IHC assays were used to examine the expression level of CRIF1 in NSCLC tissue, tissue adjacent to carcinoma, NSCLC cell lines and human normal lung epithelial cells. Next, colony formation assay, Alamar blue Kit and EdU assays were employed to examine the proliferation of transfected A549 and NCI-H2009 cells. Measurement of mitochondrial permeability transition pore opening, ATP production and cellular oxygen consumption were used to evaluate the mitochondrial apoptosis of transfected NSCLC cells. Enzymatic activity assays for PYCR1, western blot and flow cytometry assays were used to explore the relationship between PYCR1 and CRIF1. The subcutaneous xenograft tumor mice model was established to explore the role of CRIF1 in vivo. Collectively, results revealed that CRIF1 was upregulated in NSCLC cells and tissues (p < 0.001). CRIF1 promoted proliferation of NSCLC cells (p < 0.001). CRIF1 inhibited mitochondrial apoptosis in NSCLC cells (p < 0.05). Moreover, CRIF1 promoted PYCR1 deacetylation and increased its activity through SIRT3 (p < 0.05). Deacetylation of PYCR1 reversed the antitumor effect of CRIF1 knockdown (p < 0.05). Finally, knockdown of CRIF1 inhibited the tumor growth of NSCLC in vivo (p < 0.05).This research found that CRIF1 promoted the progression of non-small-cell lung cancer by SIRT3- mediated deacetylation of PYCR1.
Collapse
Affiliation(s)
- Qi Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
| | - Zhuolin Xie
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Chang Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Chun Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Cheng Ding
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Sheng Ju
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Jun Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Zihan Cui
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
| | - Chen Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
| | - Biao Gu
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
| | - Tengteng Wei
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China
- Department of Thoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215000, Jiangsu, China
| | - Jun Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, No. 899, Ping Hai Road, Suzhou, 215006, Jiangsu, China.
| |
Collapse
|
16
|
Yang Y, Liu X, Wang X, Zhang J, Li S, Ma X. Comprehensive Analysis of ABCA Family Members in Lung Adenocarcinoma with Prognostic Values. Mol Biotechnol 2022; 64:1441-1453. [PMID: 35759117 DOI: 10.1007/s12033-022-00506-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: 12/16/2021] [Accepted: 05/02/2022] [Indexed: 11/27/2022]
Abstract
ATP-binding cassette subfamily A (ABCA) has received wide recognition because it possesses the capacity to translocate its derivatives, xenobiotics, vitamins, and cholesterol across biological membranes. Some ABCA members have causative relevance to inborn diseases, and a number of studies have explored their functions in cancer progression and metastasis. Here, we explored the interrelation between ABCA genes and lung adenocarcinoma (LUAD). We specified the expression and functions of ABCA members in LUAD using the GEPIA, GEO, Human Protein Atlas, UALCAN, TIMER, and Kaplan-Meier Plotter databases. ABCA5, ABCA6, ABCA8, ABCA9, and ABCA10 were found to be significantly less expressed in LUAD and correlated with TP53 mutation in patients with LUAD. Furthermore, ABCA5, ABCA6, and ABCA8 were relevant to overall survival of patients with LUAD. In conclusion, this study showed that ABCA members may be related to the TP53 mutation of LUAD. Moreover, it may serve as a potential marker for the prognosis of LUAD.
Collapse
Affiliation(s)
- Yanxia Yang
- Department of Respiratory and Critical Care Medicine, Second People's Hospital of Gansu Province, Lanzhou, 730000, Gansu, China.,Affiliated Hospital of Northwest University for Nationalities, Lanzhou, 730000, Gansu, China
| | - Xiaoping Liu
- Department of Respiratory and Critical Care Medicine, Second People's Hospital of Gansu Province, Lanzhou, 730000, Gansu, China.,Affiliated Hospital of Northwest University for Nationalities, Lanzhou, 730000, Gansu, China
| | - Xin Wang
- Department of Respiratory and Critical Care Medicine, Second People's Hospital of Gansu Province, Lanzhou, 730000, Gansu, China.,Affiliated Hospital of Northwest University for Nationalities, Lanzhou, 730000, Gansu, China
| | - Jie Zhang
- Department of Respiratory and Critical Care Medicine, Second People's Hospital of Gansu Province, Lanzhou, 730000, Gansu, China.,Affiliated Hospital of Northwest University for Nationalities, Lanzhou, 730000, Gansu, China
| | - Shuhua Li
- Department of Respiratory and Critical Care Medicine, Second People's Hospital of Gansu Province, Lanzhou, 730000, Gansu, China.,Affiliated Hospital of Northwest University for Nationalities, Lanzhou, 730000, Gansu, China
| | - Xueping Ma
- Department of Respiratory and Critical Care Medicine, Second People's Hospital of Gansu Province, Lanzhou, 730000, Gansu, China. .,Affiliated Hospital of Northwest University for Nationalities, Lanzhou, 730000, Gansu, China.
| |
Collapse
|
17
|
Li Z, Zhou X, Huang J, Xu Z, Xing C, Yang J, Zhou X. miR-150-5p inhibits nasopharyngeal cancer genesis by suppressing PYCR1. Am J Med Sci 2022:S0002-9629(22)00268-3. [PMID: 35718122 DOI: 10.1016/j.amjms.2022.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 06/10/2022] [Indexed: 11/01/2022]
Abstract
BACKGROUND Nasopharyngeal cancer (NPC) is a rare cancer type with a low five-year survival rate. Dysregulation of PYCR1 and miR-150-5p has been involved in the development of various cancers. However, the molecular mechanism of the miR-150-5p-PYCR1 axis in NPC remains unclear. METHODS The expressions of miR-150-5p and PYCR1 in NPC tissues and cells were measured by RT-qPCR. The luciferase assay and RNA pull-down assay were used to confirm the interaction between miR-150-5p and PYCR1. The function of overexpression of miR-150-5p and PYCR1 were detected by cell viability, proliferation, migration and invasion in NPC C666-1 and SUNE-1 cells. RESULTS The miR-150-5p expression was reduced in NPC tissues and cells and negatively correlated with PYCR1 level. Upregulation of miR-150-5p conspicuously repressed cell growth. However, upregulation of PYCR1 significantly facilitated the development of NPC, which further suppressed NPC tumorigenesis by abolishing the effect of miR-150-5p. CONCLUSIONS We clarified that miR-150-5p attenuated NPC tumorigenesis through reducing PYCR1 expression. This provides a new perspective of NPC involving both miR-150-5p and PYCR1 for the treatment of NPC.
Collapse
Affiliation(s)
- Zhiqun Li
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan, China
| | - Xiaoliu Zhou
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan, China
| | - Jiajun Huang
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan, China
| | - Zhencai Xu
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan, China
| | - Chengliang Xing
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan, China
| | - Junwei Yang
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan, China
| | - Xuejun Zhou
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan, China.
| |
Collapse
|
18
|
Proline Metabolism in Malignant Gliomas: A Systematic Literature Review. Cancers (Basel) 2022; 14:cancers14082030. [PMID: 35454935 PMCID: PMC9027994 DOI: 10.3390/cancers14082030] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary Studies of various types of cancers have found proline metabolism to be a key player in tumor development, involved in basic metabolic pathways, regulating cell proliferation, survival, and signaling. Here, we systematically searched the literature to find data on proline metabolism in malignant glial tumors. Despite limited availability, existing studies have found several ways in which proline metabolism may affect the development of gliomas, involving the maintenance of redox balance, providing essential glutamate, and affecting major signaling pathways. Metabolomic profiling has revealed the importance of proline as a link to basic cell metabolic cycles and shown it to be correlated with overall survival. Emerging knowledge on the role of proline in general oncology encourages further studies on malignant gliomas. Abstract Background: Proline has attracted growing interest because of its diverse influence on tumor metabolism and the discovery of the regulatory mechanisms that appear to be involved. In contrast to general oncology, data on proline metabolism in central nervous system malignancies are limited. Materials and Methods: We performed a systematic literature review of the MEDLINE and EMBASE databases according to PRISMA guidelines, searching for articles concerning proline metabolism in malignant glial tumors. From 815 search results, we identified 14 studies pertaining to this topic. Results: The role of the proline cycle in maintaining redox balance in IDH-mutated gliomas has been convincingly demonstrated. Proline is involved in restoring levels of glutamate, the main glial excitatory neurotransmitter. Proline oxidase influences two major signaling pathways: p53 and NF- κB. In metabolomics studies, the metabolism of proline and its link to the urea cycle was found to be a prognostic factor for survival and a marker of malignancy. Data on the prolidase concentration in the serum of glioblastoma patients are contradictory. Conclusions: Despite a paucity of studies in the literature, the available data are interesting enough to encourage further research, especially in terms of extrapolating what we have learned of proline functions from other neoplasms to malignant gliomas.
Collapse
|
19
|
Qiao H, Feng Y, Tang H. COL6A6 inhibits the proliferation and metastasis of non-small cell lung cancer through the JAK signalling pathway. Transl Cancer Res 2022; 10:4514-4522. [PMID: 35116307 PMCID: PMC8798920 DOI: 10.21037/tcr-21-2002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 10/16/2021] [Indexed: 12/19/2022]
Abstract
Background Collagen type VI alpha 6 chain (COL6A6) plays a vital role in maintaining cell structural integrity and regulating cell function. It has been proven to be a tumor suppressor gene and molecular therapeutic target. However, the mechanism of COL6A6 in non-small cell lung cancer (NSCLC) has not been elucidated. The purpose of this study was to investigate the relationship between COL6A6 and NSCLC. Methods We analyzed the expression of COL6A6 in NSCLC using public databases and verified the findings in NSCLC tissues and cells. The protein expression of COL6A6 was evaluated by Western blot. The CCK8 and Transwell assays were used to assess the invasion ability of NSCLC cells after COL6A6 knockdown. At the same time, we discussed the role of the JAK signalling pathway that may be related to COL6A6. Results Bioinformatics analysis showed that COL6A6 expression was downregulated in NSCLC, and its high expression was associated with a better prognosis of NSCLC. In vitro, the expression of COL6A6 in NSCLC tissues was significantly lower than that in adjacent tissues. Furthermore, COL6A6 knockout accelerated the proliferation, invasion, and migration of NSCLC cells and activated the JAK signalling pathway. Conclusions Our study illustrates that COL6A6 is a tumor suppressor gene in NSCLC and is involved in NSCLC tumorigenesis by regulating the JAK signalling pathway. Therefore, COL6A6 holds promise as a molecular therapeutic target for NSCLC.
Collapse
Affiliation(s)
- Han Qiao
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Yan Feng
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Huaping Tang
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| |
Collapse
|
20
|
Hu CAA. Isozymes of P5C reductase (PYCR) in human diseases: focus on cancer. Amino Acids 2021; 53:1835-1840. [PMID: 34291342 DOI: 10.1007/s00726-021-03048-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/12/2021] [Indexed: 12/31/2022]
Abstract
Δ1-Pyrroline-5-carboxylate (P5C) reductase (PYCR or P5CR) catalyzes the conversion of P5C to L-proline (Pro) with concomitant oxidation of a cofactor, NADPH or NADH. Mammalian PYCR have been studied since 1950' and currently three isozymes of human PYCR, 1, 2, and L, have been identified and characterized and their roles in genetic diseases and cancer biology have been keenly investigated. These three isozymes are encoded by three different genes localized at three different chromosomes, and catalyze NAD(P)H-dependent reduction of P5C to Pro important for the transfer of oxidizing potential across the mitochondrion and cell. The review summarizes the current understanding of these three human PYCR isozymes and their roles in diseases with a focus on cancer.
Collapse
Affiliation(s)
- Chien-An A Hu
- MSC08 4670, Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, 87131-0001, USA.
| |
Collapse
|
21
|
Bogner AN, Stiers KM, Tanner JJ. Structure, biochemistry, and gene expression patterns of the proline biosynthetic enzyme pyrroline-5-carboxylate reductase (PYCR), an emerging cancer therapy target. Amino Acids 2021; 53:1817-1834. [PMID: 34003320 PMCID: PMC8599497 DOI: 10.1007/s00726-021-02999-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/04/2021] [Indexed: 12/21/2022]
Abstract
Proline metabolism features prominently in the unique metabolism of cancer cells. Proline biosynthetic genes are consistently upregulated in multiple cancers, while the proline catabolic enzyme proline dehydrogenase has dual, context-dependent pro-cancer and pro-apoptotic functions. Furthermore, the cycling of proline and Δ1-pyrroline-5-carboxylate through the proline cycle impacts cellular growth and death pathways by maintaining redox homeostasis between the cytosol and mitochondria. Here we focus on the last enzyme of proline biosynthesis, Δ1-pyrroline-5-carboxylate reductase, known as PYCR in humans. PYCR catalyzes the NAD(P)H-dependent reduction of Δ1-pyrroline-5-carboxylate to proline and forms the reductive half of the proline metabolic cycle. We review the research on the three-dimensional structure, biochemistry, inhibition, and cancer biology of PYCR. To provide a global view of PYCR gene upregulation in cancer, we mined RNA transcript databases to analyze differential gene expression in 28 cancer types. This analysis revealed strong, widespread upregulation of PYCR genes, especially PYCR1. Altogether, the research over the past 20 years makes a compelling case for PYCR as a cancer therapy target. We conclude with a discussion of some of the major challenges for the field, including developing isoform-specific inhibitors, elucidating the function of the long C-terminus of PYCR1/2, and characterizing the interactome of PYCR.
Collapse
Affiliation(s)
- Alexandra N Bogner
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Kyle M Stiers
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - John J Tanner
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA.
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, USA.
| |
Collapse
|
22
|
Li Z, Zhou X, Huang J, Xu Z, Xing C, Yang J, Zhou X. MicroRNA hsa-miR-150-5p inhibits nasopharyngeal carcinogenesis by suppressing PYCR1 (pyrroline-5-carboxylate reductase 1). Bioengineered 2021; 12:9766-9778. [PMID: 34696668 PMCID: PMC8810012 DOI: 10.1080/21655979.2021.1995102] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 11/05/2022] Open
Abstract
Nasopharyngeal cancer is a rare cancer type, but with a low five-year survival rate. Dysregulation of pyrroline-5-carboxylate reductase 1 (PYCR1) and microRNA hsa-miR-150-5p is involved in the development of various cancers. However, the molecular mechanism of the hsa-miR-150-5p-PYCR1 axis in nasopharyngeal cancer remains unclear. To identify the mechanism of the hsa-miR-150-5p-PYCR1 axis, the expression of hsa-miR-150-5p and PYCR1 in nasopharyngeal cancer tissues and cells was first measured by reverse transcription quantitative polymerase chain reaction. The luciferase and RNA pull-down assays were used to confirm the interaction between hsa-miR-150-5p and PYCR1. The overexpression of hsa-miR-150-5p and PYCR1 was detected by cell viability, proliferation, western blotting, migration, and invasion in nasopharyngeal cancer cells. The expression levels of hsa-miR-150-5p was reduced in the nasopharyngeal cancer tissues and cells and were negatively correlated with the PYCR1 levels. The upregulation of hsa-miR-150-5p significantly repressed cell growth and promoted apoptosis. However, the upregulation of PYCR1 expression significantly promoted nasopharyngeal carcinogenesis, which could abolish the inhibitory effect of hsa-miR-150-5p. In conclusion, we clarified that hsa-miR-150-5p attenuated nasopharyngeal carcinogenesis by reducing the PYCR1 expression levels. This provides a new perspective of nasopharyngeal cancer involving both hsa-miR-150-5p and PYCR1 for the treatment of nasopharyngeal cancer.
Collapse
Affiliation(s)
- Zhiqun Li
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Xiaoliu Zhou
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Jiajun Huang
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Zhencai Xu
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Chengliang Xing
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Junwei Yang
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Xuejun Zhou
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| |
Collapse
|
23
|
Phang JM. Perspectives, past, present and future: the proline cycle/proline-collagen regulatory axis. Amino Acids 2021; 53:1967-1975. [PMID: 34825974 PMCID: PMC8651602 DOI: 10.1007/s00726-021-03103-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/08/2021] [Indexed: 01/19/2023]
Abstract
In the 35 years since the introduction of the "proline cycle", its relevance to human tumors has been widely established. These connections are based on a variety of mechanisms discovered by many laboratories and have stimulated the search for small molecule inhibitors to treat cancer or metastases. In addition, the multi-layered connections of the proline cycle and the role of proline and hydroxyproline in collagen provide an important regulatory link between the extracellular matrix and metabolism.
Collapse
Affiliation(s)
- James M Phang
- Scientist Emeritus, Mouse Cancer Genetics Program, CCR, NCI at Frederick, National Institutes of Health, Frederick, MD, 21702, USA
| |
Collapse
|
24
|
Xu H, He Y, Lin L, Li M, Zhou Z, Yang Y. MiR-1207-5p targets PYCR1 to inhibit the progression of prostate cancer. Biochem Biophys Res Commun 2021; 575:56-64. [PMID: 34461437 DOI: 10.1016/j.bbrc.2021.08.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 07/28/2021] [Accepted: 08/13/2021] [Indexed: 01/02/2023]
Abstract
Prostate cancer, the most common non-cutaneous male cancer, is a public health problem with a third prevalence worldwide. PYCR1 and miR-1207-5p dysregulations were found in cancer progression. Our study aims to reveal the biological role of miR-1207-5p-PYCR1 axis in prostate cancer progression. First, we investigated the expression of miR-1207-5p in prostate cancer tissues and cell lines by RT-qPCR. Next, we confirmed miR-1207-5p targeting PYCR1 by luciferase assay. CCK-8 assay, BrdU assay, flow cytometry, and tanswell assay were applied for examining cell proliferation, apoptosis, and invasion in prostate cancer cells, respectively. In the present study, decreased miR-1207-5p expression was obviously observed in prostate cancer tissues and cells. Upregulation of miR-1207-5p hampered cellular proliferation and invasion, while enhanced cellular apoptosis. In addition, upregulation of PYCR1 elevated cell proliferation and invasion, but repressed apoptosis of prostate cancer cells. Moreover, miR-1207-5p inhibited the expression of PYCR1 to repress prostate cancer tumorigenesis. MiR-1207-5p inhibited the expression of PYCR1 to repress the progression of prostate cancer by inhibiting cell growth and elevating cell apoptosis. Overall, our study clarifies the biological role of miR-1207-5p-PYCR1 axis in prostate cancer progression, which might be effective biomarkers for clinical treatment of prostate cancer.
Collapse
Affiliation(s)
- Haixia Xu
- Department of Oncology, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, Guangdong, China
| | - Yan He
- Department of Oncology, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, Guangdong, China
| | - Lin Lin
- Department of Oncology, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, Guangdong, China
| | - Meixiang Li
- Department of Oncology, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, Guangdong, China
| | - Zeqiang Zhou
- Department of Oncology, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, Guangdong, China
| | - Yi Yang
- Department of Urology, the First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, Guangdong, China.
| |
Collapse
|
25
|
Guo Y, Xiao Y, Guo H, Zhu H, Chen D, Wang J, Deng J, Lan J, Liu X, Zhang Q, Bai Y. The anti-dysenteric drug fraxetin enhances anti-tumor efficacy of gemcitabine and suppresses pancreatic cancer development by antagonizing STAT3 activation. Aging (Albany NY) 2021; 13:18545-18563. [PMID: 34320467 PMCID: PMC8351699 DOI: 10.18632/aging.203301] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 12/11/2022]
Abstract
Fraxetin, a natural product isolated and purified from the bark of Fraxinus bungeana A.DC., has anti-inflammatory, analgesic, and anti-dysenteric activities. This study aimed to investigate the anti-tumor effects of fraxetin in pancreatic ductal adenocarcinoma (PDA). The effects of fraxetin on the malignant biological behavior of PDA were evaluated. Besides, the effects of fraxetin on the sensitivity of PCCs to gemcitabine, angiogenesis, the epithelial-mesenchymal transition (EMT), glucose metabolism, reactive oxygen species (ROS), and STAT3 activity were analyzed. By reversing the EMT, fraxetin suppressed proliferation, invasion, and migration, and induced mitochondrial-dependent apoptosis in PCCs. Also, treatment with fraxetin inhibited PDA growth and metastasis in nude mouse models. Furthermore, fraxetin made PCCs more sensitive to the chemotherapy drug gemcitabine. Mechanically, fraxetin treatment suppressed oncogenic KRAS-triggered STAT3 activation in PCCs and PDA tissues. Fraxetin shows significant interactions with STAT3 Src Homology 2 (SH2) domain residues, thereby preventing its homo-dimer formation, which then blocks the activation of downstream signal pathways. The anti-tumor activity of fraxetin in PDA was functionally rescued by a STAT3 activator colivelin. As a result, fraxetin hindered hypoxia-induced angiogenesis by decreasing HIF-1α and VEGFA expression, controlled glucose metabolism by reducing GLUT1 expression, inhibited the EMT by blocking the Slug-E-cadherin axis, and drove ROS-mediated apoptosis by regulating the STAT3-Ref1 axis. In conclusion, fraxetin enhances the anti-tumor activity of gemcitabine and suppresses pancreatic cancer development by antagonizing STAT3 activation.
Collapse
Affiliation(s)
- Yangyang Guo
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yanyi Xiao
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Hangcheng Guo
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Hengyue Zhu
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Dong Chen
- The Sixth People’s Hospital of Wenzhou City, Wenzhou 325000, China
| | - Jilong Wang
- Engineering Research Center of Clinical Functional Materials and Diagnosis and Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy Sciences, Wenzhou 325000, China
| | - Junjie Deng
- Engineering Research Center of Clinical Functional Materials and Diagnosis and Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy Sciences, Wenzhou 325000, China
| | - Junjie Lan
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen 361000, China
| | - Xiaodong Liu
- Platform for Radiation Protection and Emergency Preparedness, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325000, China
- Center for Health Assessment, Wenzhou Medical University, Wenzhou 325000, China
| | - Qiyu Zhang
- Department for Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yongheng Bai
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Platform for Radiation Protection and Emergency Preparedness, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325000, China
- Department for Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| |
Collapse
|
26
|
Li Y, Bie J, Song C, Liu M, Luo J. PYCR, a key enzyme in proline metabolism, functions in tumorigenesis. Amino Acids 2021; 53:1841-1850. [PMID: 34273023 DOI: 10.1007/s00726-021-03047-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 07/09/2021] [Indexed: 12/28/2022]
Abstract
Pyrroline-5-carboxylate reductase (PYCR), the last enzyme in proline synthesis that converts P5C into proline, was found promoting cancer growth and inhibiting apoptosis through multiple approaches, including regulating cell cycle and redox homeostasis, and promoting growth signaling pathways. Proline is abnormally up-regulated in multiple cancers and becomes one of the critical players in the reprogramming of cancer metabolism. As the last key enzymes in proline generation, PYCRs have been the subject of many investigations, and have been demonstrated to play an indispensable role in promoting tumorigenesis and cancer progression. In this article, we will thoroughly review the recent investigations on PYCRs in cancer development.
Collapse
Affiliation(s)
- Yutong Li
- Department of Medical Genetics, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Juntao Bie
- Department of Medical Genetics, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Chen Song
- Department of Medical Genetics, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Minghui Liu
- Department of Medical Genetics, Peking University, 38 Xueyuan Road, Beijing, 100191, China
| | - Jianyuan Luo
- Department of Medical Genetics, Peking University, 38 Xueyuan Road, Beijing, 100191, China. .,Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Beijing, 100191, China. .,Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Beijing, 100191, China. .,Center for Medical Genetics, Peking University Health Science Center, Beijing, 100191, China.
| |
Collapse
|
27
|
Yu L, Cao S, Li J, Han B, Zhong H, Zhong R. Prognostic value and immune infiltration of a novel stromal/immune score-related P2RY12 in lung adenocarcinoma microenvironment. Int Immunopharmacol 2021; 98:107734. [PMID: 34175738 DOI: 10.1016/j.intimp.2021.107734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Increasing evidence highlights the clinical implications of P2RY12 that belongs to the family of G-protein coupled receptors in carcinogenesis. Here, this study was designed to explore the associations between P2RY12 and tumor immune microenvironment of lung adenocarcinoma (LUAD). METHODS Based on 352 LUAD samples from The Cancer Genome Atlas (TCGA), stromal and immune scores of each sample were estimated by ESTIMATE algorithm. Differential expression analysis was presented between stromal/immune high- and low-score groups. Protein-protein interaction (PPI) was then constructed by STRING database. Univariate and multivariate Cox regression analysis was utilized to screen prognosis-related factors. Co-expressed genes of P2RY12 were analyzed, followed by functional enrichment analysis. Furthermore, the correlation between P2RY12 and immune cell infiltrations was estimated using the TIMER database. P2RY12 expression was validated between 37 pairs of LUAD and normal tissues using RT-qPCR and immunohistochemistry. After overexpressing P2RY12, the proliferation and migration of A549 cells was detected by CCK-8 and scratch test. RESULTS 145 up- and 102 down-regulated stromal- and immune-related mRNAs were identified for LUAD. Based on 145 up-regulated mRNAs, a PPI network was conducted, consisting of 95 nodes and 210 relationship pairs. Ten hub genes were then identified. Among them, CCR8, CNR2, CXCR5, GPR18, GPR31 and P2RY12 were in association with overall survival of patients with LUAD. After adjusting other variables, P2RY12 expression was an independent prognostic factor for LUAD. 288 co-expressed genes of P2RY12 were determined and these co-expressed genes were primarily involved in immune-related biological processes or pathways. Moreover, P2RY12 was significantly correlated with M2 macrophage and dendritic cell infiltration. After validation, P2RY12 expression was significantly decreased in LUAD than normal tissues. Its overexpression distinctly suppressed proliferation and migration of A549 cells. CONCLUSION Our findings suggest that P2RY12 is an immune infiltration-related prognostic marker for LUAD.
Collapse
Affiliation(s)
- Lian Yu
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
| | - Shuhui Cao
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
| | - Jingwen Li
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
| | - Baohui Han
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
| | - Hua Zhong
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
| | - Runbo Zhong
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
| |
Collapse
|
28
|
Zhang ET, Hannibal RL, Badillo Rivera KM, Song JHT, McGowan K, Zhu X, Meinhardt G, Knöfler M, Pollheimer J, Urban AE, Folkins AK, Lyell DJ, Baker JC. PRG2 and AQPEP are misexpressed in fetal membranes in placenta previa and percreta†. Biol Reprod 2021; 105:244-257. [PMID: 33982062 DOI: 10.1093/biolre/ioab068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 03/03/2021] [Accepted: 04/07/2021] [Indexed: 11/13/2022] Open
Abstract
The obstetrical conditions placenta accreta spectrum (PAS) and placenta previa are a significant source of pregnancy-associated morbidity and mortality, yet the specific molecular and cellular underpinnings of these conditions are not known. In this study, we identified misregulated gene expression patterns in tissues from placenta previa and percreta (the most extreme form of PAS) compared with control cases. By comparing this gene set with existing placental single-cell and bulk RNA-Seq datasets, we show that the upregulated genes predominantly mark extravillous trophoblasts. We performed immunofluorescence on several candidate molecules and found that PRG2 and AQPEP protein levels are upregulated in both the fetal membranes and the placental disk in both conditions. While this increased AQPEP expression remains restricted to trophoblasts, PRG2 is mislocalized and is found throughout the fetal membranes. Using a larger patient cohort with a diverse set of gestationally aged-matched controls, we validated PRG2 as a marker for both previa and PAS and AQPEP as a marker for only previa in the fetal membranes. Our findings suggest that the extraembryonic tissues surrounding the conceptus, including both the fetal membranes and the placental disk, harbor a signature of previa and PAS that is characteristic of EVTs and that may reflect increased trophoblast invasiveness.
Collapse
Affiliation(s)
- Elisa T Zhang
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Roberta L Hannibal
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Janet H T Song
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Kelly McGowan
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Xiaowei Zhu
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Gudrun Meinhardt
- Department of Obstetrics and Gynecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Martin Knöfler
- Department of Obstetrics and Gynecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Jürgen Pollheimer
- Department of Obstetrics and Gynecology, Reproductive Biology Unit, Medical University of Vienna, Vienna, Austria
| | - Alexander E Urban
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Ann K Folkins
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Deirdre J Lyell
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA, USA
| | - Julie C Baker
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.,Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA, USA
| |
Collapse
|
29
|
Lu J, Lin J, Zhou Y, Ye K, Fang C. MiR-328-3p inhibits lung adenocarcinoma-genesis by downregulation PYCR1. Biochem Biophys Res Commun 2021; 550:99-106. [PMID: 33706104 DOI: 10.1016/j.bbrc.2021.02.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 02/06/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND A vast majority of patients with NSCLC (non-small cell lung cancer) have lung adenocarcinoma (LA), and the survival rate of LA varies from 5% to 75% depending on the severity of this adenocarcinoma. PYCR1 (abnormal pyrroline-5-carboxylate reductase 1) gene and miR-328-3p have been found to be associated with cancer development. However, the underlying mechanism of interaction between miR-328-3p and PYCR1 in LA needs further investigation. METHODS The expressions of miR-328-3p and PYCR1 in samples with LA were identified by RT-qPCR. Next, we investigated the targeting relationship between these two biological factors using luciferase assay. CCK-8, BrdU, transwell-migration, and flow cytometry assays were performed to detect cell viability, cell proliferation, cell migration and cell apoptosis in LA cells. RESULTS We noticed that miR-328-3p expression was downregulated in LA samples. MiR-328-3p mimic restricted cell proliferation and cell migration, while it enhanced cell apoptosis. Furthermore, the overexpression of PYCR1 promoted the proliferation and migration of LA cells, but it repressed cell apoptosis. Moreover, PYCR1 directly interacted with miR-328-3p in the LA cells, and miR-328-3p restrained the expression of PYCR1, thus suppressing LA tumorigenesis. CONCLUSION In summary, our study revealed that miR-328-3p targeting to PYCR1 suppressed the malignancy of LA cells by impeding cell proliferation and migration, while effectively promoting cell apoptosis.
Collapse
Affiliation(s)
- Jiancong Lu
- Department of Respiratory Diseases, Huizhou Municipal Central Hospital, Huizhou, 516001, Guangdong, China.
| | - Junhong Lin
- Department of Respiratory Diseases, Huizhou Municipal Central Hospital, Huizhou, 516001, Guangdong, China
| | - Yu Zhou
- Department of Respiratory Diseases, Huizhou Municipal Central Hospital, Huizhou, 516001, Guangdong, China
| | - Kai Ye
- Department of Respiratory Diseases, Huizhou Municipal Central Hospital, Huizhou, 516001, Guangdong, China
| | - Changquan Fang
- Department of Respiratory Diseases, Huizhou Municipal Central Hospital, Huizhou, 516001, Guangdong, China
| |
Collapse
|
30
|
Du S, Sui Y, Ren W, Zhou J, Du C. PYCR1 promotes bladder cancer by affecting the Akt/Wnt/β-catenin signaling. J Bioenerg Biomembr 2021; 53:247-258. [PMID: 33689096 DOI: 10.1007/s10863-021-09887-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/01/2021] [Indexed: 01/08/2023]
Abstract
Pyrroline-5-carboxylate reductase 1 (PYCR1) plays a significant role in the malignant progression of various cancers. However, the role of PYCR1 in bladder cancer has not been well studied. This study was performed to evaluate the potential relevance of PYCR1 in bladder cancer. Our data revealed that PYCR1 expression was increased in bladder cancer tissues, and increased expression of PYCR1 was predictive of decreased survival rates. In bladder cancer cell lines, knockdown of PYCR1 caused significantly retarded cell growth and invasion, while PYCR1 overexpression accelerated cellular proliferation and invasion. Moreover, PYCR1 knockdown decreased levels of phosphorylated Akt, and enhanced activation of Wnt/β-catenin signaling. Akt inhibition markedly abrogated of PYCR1 overexpression-mediated activation of Wnt/β-catenin signaling. In addition, overexpression of β-catenin partially reversed PYCR1 knockdown-mediated tumor suppression. Notably, PYCR1 knockdown significantly impeded tumor formation and growth in bladder cancer cells in vivo. In conclusion, these data demonstrate that PYCR1 is highly expressed in bladder cancer and knockdown of PYCR1 exerts a remarkable inhibitory effect on tumor formation via downregulation of Akt/Wnt/β-catenin signaling. Our study suggests a potential role for PYCR1 in promoting bladder cancer progression and indicates that PYCR1 may be utilized as an attractive and promising anticancer target for treatment of bladder cancer.
Collapse
Affiliation(s)
- Shuangkuan Du
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Yongjie Sui
- Department of Physical Examination, Shaanxi Provincial People's Hospital, No.256 Youyi West Road, Xi'an, 710068, China.
| | - Wei Ren
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Jiancheng Zhou
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Chun Du
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| |
Collapse
|
31
|
Kuo MT, Chen HHW, Feun LG, Savaraj N. Targeting the Proline-Glutamine-Asparagine-Arginine Metabolic Axis in Amino Acid Starvation Cancer Therapy. Pharmaceuticals (Basel) 2021; 14:ph14010072. [PMID: 33477430 PMCID: PMC7830038 DOI: 10.3390/ph14010072] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 12/22/2022] Open
Abstract
Proline, glutamine, asparagine, and arginine are conditionally non-essential amino acids that can be produced in our body. However, they are essential for the growth of highly proliferative cells such as cancers. Many cancers express reduced levels of these amino acids and thus require import from the environment. Meanwhile, the biosynthesis of these amino acids is inter-connected but can be intervened individually through the inhibition of key enzymes of the biosynthesis of these amino acids, resulting in amino acid starvation and cell death. Amino acid starvation strategies have been in various stages of clinical applications. Targeting asparagine using asparaginase has been approved for treating acute lymphoblastic leukemia. Targeting glutamine and arginine starvations are in various stages of clinical trials, and targeting proline starvation is in preclinical development. The most important obstacle of these therapies is drug resistance, which is mostly due to reactivation of the key enzymes involved in biosynthesis of the targeted amino acids and reprogramming of compensatory survival pathways via transcriptional, epigenetic, and post-translational mechanisms. Here, we review the interactive regulatory mechanisms that control cellular levels of these amino acids for amino acid starvation therapy and how drug resistance is evolved underlying treatment failure.
Collapse
Affiliation(s)
- Macus Tien Kuo
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Correspondence:
| | - Helen H. W. Chen
- Department of Radiation Oncology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70428, Taiwan;
| | - Lynn G. Feun
- Department of Medicine, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
| | - Niramol Savaraj
- Division of Hematology and Oncology, Miami Veterans Affairs Heaithcare System, Miami, FL 33136, USA;
| |
Collapse
|
32
|
Cao Y, Fang T, Fan M, Wang L, Lv C, Jin P, Ma F. Functional characterization of STATa/b genes encoding transcription factors from Branchiostoma belcheri. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 114:103838. [PMID: 32846160 DOI: 10.1016/j.dci.2020.103838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
The signal transducer and activator of transcription (STAT), as an important transcription factor of the Janus kinase (JAK)-STAT signaling pathway, is pivotal for development and immunity and well documented in vertebrates. However, the STAT gene has not been reported in chordate amphioxus (Branchiostoma belcheri). In this study, we firstly identify and characterize two STAT genes from Branchiostoma belcheri (designed as AmphiSTATa and AmphiSTATb). Secondly, our results reveal that AmphiSTATa is clustered with vertebrate STAT1, STAT2, STAT3 and STAT4, whereas AmphiSTATb is grouped with STAT5 and STAT6 based on phylogenetic analysis. Thirdly, AmphiSTATa and AmphiSTATb are found to widely express in five representative tissues of amphioxus (gill, hepatic cecum, intestine, muscle and notochord) by RT-qPCR analysis. Importantly, both AmphiSTATa and AmphiSTATb can be involved in innate immune responses to LPS stimulation. Fourthly, we demonstrate that AmphiSTATa and AmphiSTATb can form homodimers or heterodimers by Co-IP and Native-PAGE assay, and that AmphiSTATa and AmphiSTATb proteins can also distribute in cytoplasm and nucleus by the subcellular localization. Taken together, our findings not only reveal the roles of AmphiSTATa and AmphiSTATb in amphioxus innate immune responses to LPS stimulation, but provide a new insight into further elucidating the evolution and function of STATs in animals.
Collapse
Affiliation(s)
- Yunpeng Cao
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Tao Fang
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Mingli Fan
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Lei Wang
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Caiyun Lv
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Ping Jin
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| | - Fei Ma
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| |
Collapse
|
33
|
Cheng C, Song D, Wu Y, Liu B. RAC3 Promotes Proliferation, Migration and Invasion via PYCR1/JAK/STAT Signaling in Bladder Cancer. Front Mol Biosci 2020; 7:218. [PMID: 33062641 PMCID: PMC7488983 DOI: 10.3389/fmolb.2020.00218] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/04/2020] [Indexed: 12/20/2022] Open
Abstract
Background Bladder cancer (BCa) represents one of the most common malignant cancers with high incidence and mortality rates globally. Dysregulation of gene expression has been shown to play critical roles in cancer progression. RAC3 is up-regulated to play an oncogenic role in several cancers, however, the underlying mechanism of RAC3 in BCa is yet to be elucidated. Therefore, this study aimed to investigate the function and mechanism of RAC3 in BCa. Methods Bioinformatics analysis was employed to demonstrate the expression of RAC3 and PYCR1 in BCa tissues, as well as, its correlation with the overall survival rate of BCa patients. RT-qPCR was performed to detect and quantify the mRNA levels of RAC3 and PYCR1 in BCa cells and immortalized human bladder epithelial cells. MTT, colony formation and Transwell assays were employed to determine cell proliferation, migration, and invasion. Western blotting was performed to detect and quantity proteins expressed. Results Bioinformatics analysis showed that RAC3 was up-regulated in BCa tissues when compared to normal tissues. Patients with up-regulated RAC3 expression had lower overall survival than patients with down-regulated RAC3 expression. The mRNA level of RAC3 was higher in BCa cells than in immortalized human bladder epithelial cell. RAC3 promoted cell proliferation, migration, and invasion by activating Janus kinases (JAKs) and signal transducers and activators of transcription (STATs) signaling. Notably, RAC3 up-regulated PYCR1, which is positively correlated with RAC3, and thus played an oncogenic role in BCa cells. Moreover, we demonstrated that RAC3 overexpression activated JAK/STAT signaling via PYCR1 axis. Conclusion RAC3 promoted cell proliferation, migration, and invasion. This is likely due to its role in activating JAK/STAT signaling, which was mediated by PYCR1. This study provides a novel biomarker and target for diagnostic or therapeutic intervention for BCa.
Collapse
Affiliation(s)
- Chuanyu Cheng
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dongkui Song
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yudong Wu
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bingqian Liu
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| |
Collapse
|