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Sun C, Zhang W, Liu H, Ding Y, Guo J, Xiong S, Zhai Z, Hu W. Identification of a novel lactylation-related gene signature predicts the prognosis of multiple myeloma and experiment verification. Sci Rep 2024; 14:15142. [PMID: 38956267 PMCID: PMC11219856 DOI: 10.1038/s41598-024-65937-x] [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: 03/25/2024] [Accepted: 06/25/2024] [Indexed: 07/04/2024] Open
Abstract
Multiple myeloma (MM) is an incurable hematological malignancy with poor survival. Accumulating evidence reveals that lactylation modification plays a vital role in tumorigenesis. However, research on lactylation-related genes (LRGs) in predicting the prognosis of MM remains limited. Differentially expressed LRGs (DELRGs) between MM and normal samples were investigated from the Gene Expression Omnibus database. Univariate Cox regression and LASSO Cox regression analysis were applied to construct gene signature associated with overall survival. The signature was validated in two external datasets. A nomogram was further constructed and evaluated. Additionally, Enrichment analysis, immune analysis, and drug chemosensitivity analysis between the two groups were investigated. qPCR and immunofluorescence staining were performed to validate the expression and localization of PFN1. CCK-8 and flow cytometry were performed to validate biological function. A total of 9 LRGs (TRIM28, PPIA, SOD1, RRP1B, IARS2, RB1, PFN1, PRCC, and FABP5) were selected to establish the prognostic signature. Kaplan-Meier survival curves showed that high-risk group patients had a remarkably worse prognosis in the training and validation cohorts. A nomogram was constructed based on LRGs signature and clinical characteristics, and showed excellent predictive power by calibration curve and C-index. Moreover, biological pathways, immunologic status, as well as sensitivity to chemotherapy drugs were different between high- and low-risk groups. Additionally, the hub gene PFN1 is highly expressed in MM, knocking down PFN1 induces cell cycle arrest, suppresses cell proliferation and promotes cell apoptosis. In conclusion, our study revealed that LRGs signature is a promising biomarker for MM that can effectively early distinguish high-risk patients and predict prognosis.
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Affiliation(s)
- Cheng Sun
- College of Pharmacy, Anhui Medical University, Hefei, Anhui, People's Republic of China
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Wanqiu Zhang
- Department of Hematology/Hematological Lab, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Hao Liu
- College of Pharmacy, Anhui Medical University, Hefei, Anhui, People's Republic of China
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Yangyang Ding
- Department of Hematology/Hematological Lab, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Jingjing Guo
- Department of Hematology/Hematological Lab, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Shudao Xiong
- Department of Hematology/Hematological Lab, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Zhimin Zhai
- Department of Hematology/Hematological Lab, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China.
| | - Wei Hu
- College of Pharmacy, Anhui Medical University, Hefei, Anhui, People's Republic of China.
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China.
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2
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Saha S, Mukherjee B, Banerjee P, Das D. The 'Not-So-Famous Five' in tumorigenesis: tRNAs, tRNA fragments, and tRNA epitranscriptome in concert with AARSs and AIMPs. Biochimie 2024; 222:45-62. [PMID: 38401639 DOI: 10.1016/j.biochi.2024.02.004] [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: 08/22/2023] [Revised: 02/01/2024] [Accepted: 02/19/2024] [Indexed: 02/26/2024]
Abstract
RNA profiling studies have revealed that ∼75% of the human genome is transcribed to RNA but only a meagre fraction of it is translated to proteins. Majority of transcribed RNA constitute a specialized pool of non-coding RNAs. Human genome contains approximately 506 genes encoding a set of 51 different tRNAs, constituting a unique class of non-coding RNAs that not only have essential housekeeping functions as translator molecules during protein synthesis, but have numerous uncharted regulatory functions. Intriguing findings regarding a variety of non-canonical functions of tRNAs, tRNA derived fragments (tRFs), esoteric epitranscriptomic modifications of tRNAs, along with aminoacyl-tRNA synthetases (AARSs) and ARS-interacting multifunctional proteins (AIMPs), envision a 'peripheral dogma' controlling the flow of genetic information in the backdrop of qualitative information wrung out of the long-live central dogma of molecular biology, to drive cells towards either proliferation or differentiation programs. Our review will substantiate intriguing peculiarities of tRNA gene clusters, atypical tRNA-transcription from internal promoters catalysed by another distinct RNA polymerase enzyme, dynamically diverse tRNA epitranscriptome, intricate mechanism of tRNA-charging by AARSs governing translation fidelity, epigenetic regulation of gene expression by tRNA fragments, and the role of tRNAs and tRNA derived/associated molecules as quantitative determinants of the functional proteome, covertly orchestrating the process of tumorigenesis, through a deregulated tRNA-ome mediating selective codon-biased translation of cancer related gene transcripts.
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Affiliation(s)
- Sutapa Saha
- Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata, 700073, WB, India.
| | - Biyas Mukherjee
- Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Kolkata, 700064, India
| | - Proma Banerjee
- Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata, 700073, WB, India
| | - Debadrita Das
- Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata, 700073, WB, India
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3
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Meng X, Gao B, Li N. Mitochondrial protein isoleucyl-tRNA synthetase 2 in tumor cells as a potential therapeutic target for cervical cancer. Cytojournal 2024; 21:22. [PMID: 38989294 PMCID: PMC11234349 DOI: 10.25259/cytojournal_17_2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 05/29/2024] [Indexed: 07/12/2024] Open
Abstract
Objective Isoleucyl-tRNA synthetase 2 (IARS2) is crucial for mitochondrial activity and function in cancer cells. Cervical cancer is a highly prevalent malignancy affecting the female reproductive system on a global scale. This research investigates the expression and potential roles of IARS2 in cervical cancer cells. Material and Methods Initially, we examined the IARS2 expression profile in cervical cancer cells using Western blot technique and quantitative reverse transcription polymerase chain reaction methodologies. Subsequently, cervical cancer cell models with IARS2 silencing and overexpression were constructed using Short Hairpin RNA (ShRNA) (IARS2) and pcMV-FLAG-IARS2, respectively. The impact of IARS2 silencing or overexpression on Hela cell mitochondrial membrane potential, mitochondrial complex I, adenosine triphosphate (ATP) levels, reactive oxygen species activity, viability, proliferation, migration, apoptosis-related proteins, and apoptosis levels was examined through fluorescence staining, enzyme-linked immunosorbent assay, cell counting kit-8 assay, Transwell experiments, Western blot technique, and Terminal deoxynucleotidyl transferase dUTP nick end labeling assay techniques. Results The expression of IARS2 is upregulated in cervical cancer cells. Silencing IARS2 with ShRNA (IARS2) disrupts mitochondrial function in cervical cancer cells, resulting in mitochondrial depolarization, heightened oxidative stress, suppression of mitochondrial complex I, and a decrease in ATP levels. Moreover, the depletion of IARS2 significantly impedes the viability, proliferation, and migration of cervical cancer cells, inducing apoptotic processes. In contrast, the overexpression of IARS2 augments the proliferation, migration, and ATP levels in cervical cancer cells. Conclusion IARS2 plays a pivotal role as a mitochondrial protein in fostering the growth of cervical cancer cells, presenting itself as an innovative target for tumor diagnosis and treatment.
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Affiliation(s)
- Xiaojiao Meng
- Department of Ultrasonic, Zibo Central Hospital, Shandong, China
| | - Bo Gao
- Department of Ultrasonic, Zibo Central Hospital, Shandong, China
| | - Ning Li
- Department of Ultrasonic, Zibo Central Hospital, Shandong, China
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4
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Ying L, Kong L, Qiu X, Cheng A, Wang Q, Xiu L, Shi J, Tao Y, Chai Z. A novel mitochondria-related core gene signature to predict the prognosis and evaluate tumour microenvironment in CESC single-cell validation. J Cell Mol Med 2024; 28:e18265. [PMID: 38534098 DOI: 10.1111/jcmm.18265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/28/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
Mitochondria and their related genes (MTRGs) are pivotal in the tumour microenvironment (TME) of cervical cancer, influencing prognosis and treatment response. This study developed a prognostic model using MTRGs to predict overall survival (OS) in cervical squamous cell carcinoma and endocervical adenocarcinoma (CESC), aiming for personalized therapy. Analysing 14 MTRGs like ISCU and NDUFA11 through techniques such as univariate Cox regression, we found that a low mitochondrial (MT) score is associated with better survival, while a high MT score predicts poorer outcomes. The TME score, particularly influenced by CD8 T cells, also correlates with prognosis, with a high score indicating favourable outcomes. The interplay between MT and TME subtypes revealed that the best prognosis is seen in patients with a low MT and high TME score. Our findings highlight the role of MTRGs as potential biomarkers and therapeutic targets in cervical cancer, offering a novel approach to improving patient outcomes through a more nuanced understanding of mitochondrial function and immune interactions within the TME. This model presents a promising avenue for enhancing the precision of prognostic assessments in CESC.
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Affiliation(s)
- Lingxiao Ying
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
| | - Lin Kong
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
| | - Xiaoxiao Qiu
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
| | - Aihua Cheng
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
| | - Qijun Wang
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
| | - Limeng Xiu
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
| | - Jinmei Shi
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
| | - Yanfei Tao
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
| | - Zhihong Chai
- Department of Gynecology, Taizhou Municipal Hospital, Medical College of Taizhou University, Taizhou, China
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Wang J, Guan X, Shang N, Wu D, Liu Z, Guan Z, Zhang Z, Jin Z, Wei X, Liu X, Song M, Zhu W, Dai G. Dysfunction of CCT3-associated network signals for the critical state during progression of hepatocellular carcinoma. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167054. [PMID: 38360074 DOI: 10.1016/j.bbadis.2024.167054] [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: 08/24/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/17/2024]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors and is a serious threat to human health; thus, early diagnosis and adequate treatment are essential. However, there are still great challenges in identifying the tipping point and detecting early warning signals of early HCC. In this study, we aimed to identify the tipping point (critical state) of and key molecules involved in hepatocarcinogenesis based on time series transcriptome expression data of HCC patients. The phase from veHCC (very early HCC) to eHCC (early HCC) was identified as the critical state in HCC progression, with 143 genes identified as key candidate molecules by combining the DDRTree (dimensionality reduction via graph structure learning) and DNB (dynamic network biomarker) methods. Then, we ranked the candidate genes to verify their mRNA levels using the diethylnitrosamine (DEN)-induced HCC mouse model and identified five early warning signals, namely, CCT3, DSTYK, EIF3E, IARS2 and TXNRD1; these signals can be regarded as the potential early warning signals for the critical state of HCC. We identified CCT3 as an independent prognostic factor for HCC, and functions of CCT3 involving in the "MYCtargets_V1" and "E2F-Targets" are closely related to the progression of HCC. The predictive method combining the DDRTree and DNB methods can not only identify the key critical state before cancer but also determine candidate molecules of critical state, thus providing new insight into the early diagnosis and preemptive treatment of HCC.
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Affiliation(s)
- Jianwei Wang
- School of Computer and Artificial Intelligence, Zhengzhou University, Zhengzhou 45001, China; School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Xiaowen Guan
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Ning Shang
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Di Wu
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Zihan Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Zhenzhen Guan
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Zhizi Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Zhongzhen Jin
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Xiaoyi Wei
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Xiaoran Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Mingzhu Song
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China
| | - Weijun Zhu
- School of Computer and Artificial Intelligence, Zhengzhou University, Zhengzhou 45001, China.
| | - Guifu Dai
- School of Life Sciences, Zhengzhou University, Zhengzhou 45001, China.
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Hussain MS, Altamimi ASA, Afzal M, Almalki WH, Kazmi I, Alzarea SI, Saleem S, Prasher P, Oliver B, Singh SK, MacLoughlin R, Dua K, Gupta G. From carcinogenesis to therapeutic avenues: lncRNAs and mTOR crosstalk in lung cancer. Pathol Res Pract 2024; 253:155015. [PMID: 38103364 DOI: 10.1016/j.prp.2023.155015] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/02/2023] [Accepted: 12/02/2023] [Indexed: 12/19/2023]
Abstract
Long non-coding RNAs (lncRNAs) have been demonstrated to have a crucial function in the modulation of the activity of genes, impacting a variety of homeostatic processes involving growth, survival, movement, and genomic consistency. Certain lncRNAs' aberrant expression has been linked to carcinogenesis, tumor growth, and therapeutic resistance. They are beneficial for the management of malignancies since they can function as cancer-causing or cancer-suppressing genes and behave as screening or prognosis indicators. The modulation of the tumor microenvironment, metabolic modification, and spread have all been linked to lncRNAs in lung cancer. Recent research has indicated that lncRNAs may interact with various mTOR signalling systems to control expression in lung cancer. Furthermore, the route can affect how lncRNAs are expressed. Emphasizing the function of lncRNAs as crucial participants in the mTOR pathway, the current review intends to examine the interactions between the mTOR cascade and the advancement of lung cancer. The article will shed light on the roles and processes of a few lncRNAs associated with the development of lung cancer, as well as their therapeutic prospects.
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Affiliation(s)
- Md Sadique Hussain
- School of Pharmaceutical Sciences, Jaipur National University, Jagatpura, 302017 Jaipur, Rajasthan, India
| | - Abdulmalik S A Altamimi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | - Sami I Alzarea
- ōDepartment of Pharmacology, College of Pharmacy, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia
| | - Shakir Saleem
- Department of Public Health, College of Health Sciences, Saudi Electronic University, Riyadh, Saudi Arabia
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Energy Acres, Dehradun 248007, India
| | - Brian Oliver
- Faculty of Science, School of Life Sciences, Sydney, NSW 2007, Australia; Woolcock Institute of Medical Research, Macquarie university, Sydney, NSW, 2137
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Ronan MacLoughlin
- School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Leinster D02 YN77, Ireland; School of Pharmacy & Pharmaceutical Sciences, Trinity College, Dublin, Leinster D02 PN40, Ireland; Research and Development, Science and Emerging Technologies, Aerogen Ltd., Galway Business Park, H91 HE94 Galway, Ireland
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW 2007, Australia
| | - Gaurav Gupta
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India; School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Mahal Road, Jaipur, India.
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Hekmatshoar Y, Rahbar Saadat Y, Ozkan T, Bozkurt S, Karadag Gurel A. Identification of common genes and pathways underlying imatinib and nilotinib treatment in CML: a Bioinformatics Study. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2023; 43:664-684. [PMID: 38117080 DOI: 10.1080/15257770.2023.2296021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023]
Abstract
Imatinib (IMA) and nilotinib are the first and second generations of BCR-ABL tyrosine kinase inhibitors, which widely applied in chronic myeloid leukemia (CML) treatment. Here we aimed to provide new targets for CML treatment by transcriptome analysis. Microarray data GSE19567 was downloaded and analyzed from Gene Expression Omnibus (GEO) to identify common genes, which are downregulated or upregulated in K562-imatinib and K562-nilotinib treated cells. The differentially expressed genes (DEGs) were assessed, and STRING and Cytoscape were used to create the protein-protein interaction (PPI) network. In imatinib and nilotinib treated groups' comparison, there were common 626 upregulated and 268 downregulated genes, which were differentially expressed. The GO analysis represented the enrichment of DEGs in iron ion binding, protein tyrosine kinase activity, transcription factor activity, ATP binding, sequence-specific DNA binding, cytokine activity, the mitochondrion, sequence-specific DNA binding, plasma membrane and cell-cell adherens junction. KEGG pathway analysis revealed that downregulated DEGs were associated with pathways including microRNAs in cancer and PI3K-Akt signaling pathway. Furthermore, upregulated DEGs were involved in hematopoietic cell lineage, lysosome and chemical carcinogenesis. Among the upregulated genes, MYH9, MYH14, MYL10, MYL7, MYL5, RXRA, CYP1A1, FECH, AKR1C3, ALAD, CAT, CITED2, CPT1A, CYP3A5, CYP3A7, FABP1, HBD, HMBS and PPOX genes were found as hub genes. Moreover, 20 downregulated genes, YARS, AARS, SARS, GARS, CARS, IARS, RRP79, CEBPB, RRP12, UTP14A, PNO1, CCND1, DDX10, MYC, WDR43, CEBPG, DDIT3, VEGFA, PIM1 and TRIB3 were identified as hub genes. These genes have the potential to become target genes for diagnosis and therapy of CML patients.
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Affiliation(s)
- Yalda Hekmatshoar
- Department of Medical Biology, School of Medicine, Altinbas University, Istanbul, Turkey
| | | | - Tulin Ozkan
- Department of Medical Biology, School of Medicine, Ankara University, Ankara, Turkey
| | - Sureyya Bozkurt
- Department of Medical Biology, School of Medicine, Istinye University, Istanbul, Turkey
| | - Aynur Karadag Gurel
- Department of Medical Biology, School of Medicine, Usak University, Usak, Turkey
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8
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Fang T, Jiang J, Yu W, Li R, Tian H. DARS2 promotes the occurrence of lung adenocarcinoma via the ERK/c-Myc signaling pathway. Thorac Cancer 2023; 14:3511-3521. [PMID: 37950542 PMCID: PMC10733159 DOI: 10.1111/1759-7714.15152] [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: 08/07/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND DARS2 expression is upregulated in lung adenocarcinoma (LUAD) which correlates with tumor patient stage and prognosis. The mechanism of DARS2 involvement in LUAD still needs to be further explored. METHODS In this study, we found that DARS2 expression in LUAD tissue was significantly higher than that in normal tissue. At the same time, the Kaplan-Meier curve showed that the survival prognosis of LUAD patients with high expression of DARS2 was significantly worse than low expression of DARS2. The expression of DARS2 was detected in LUAD and adjacent normal tissues by IHC staining, histochemical scoring and a survival curve was generated. In addition, we demonstrated that the knockdown and overexpression of DARS2 significantly affected the proliferation, invasion, and migration of LUAD cells in vitro and in vivo. Finally, western blot and rescue assay were performed on LUAD cells to further explore and verify the signaling pathway. RESULTS DARS2 expression was significantly upregulated in LUAD tissues and cell lines. What is more, the increased expression of DARS2 was closely related to proliferation, invasion and metastasis. The tumorigenic assay in nude mice further showed that the tumorigenic ability of nude mice was significantly improved with the increase in DARS2 expression. Finally, we determined that DARS2 plays its role in LUAD by targeting the ERK/c-Myc signaling pathway. CONCLUSION Our data revealed the oncogenic role of DARS2 in LUAD, indicating that DARS2 may be a predictive biomarker and novel therapeutic target for LUAD.
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Affiliation(s)
- Tao Fang
- Department of Thoracic SurgeryQilu Hospital of Shandong UniversityJinanChina
| | - Jin Jiang
- Department of Thoracic SurgeryQilu Hospital of Shandong UniversityJinanChina
| | - Wenhao Yu
- Department of Thoracic SurgeryQilu Hospital of Shandong UniversityJinanChina
| | - Rongyang Li
- Department of Thoracic SurgeryQilu Hospital of Shandong UniversityJinanChina
| | - Hui Tian
- Department of Thoracic SurgeryQilu Hospital of Shandong UniversityJinanChina
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9
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Wang Y, Wang G, Hu S, Yin C, Zhao P, Zhou X, Shao S, Liu R, Hu W, Liu GL, Ke W, Song Z. FARSB Facilitates Hepatocellular Carcinoma Progression by Activating the mTORC1 Signaling Pathway. Int J Mol Sci 2023; 24:16709. [PMID: 38069034 PMCID: PMC10706030 DOI: 10.3390/ijms242316709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/20/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a common malignant tumor with high mortality. Human phenylalanine tRNA synthetase (PheRS) comprises two α catalytic subunits encoded by the FARSA gene and two β regulatory subunits encoded by the FARSB gene. FARSB is a potential oncogene, but no experimental data show the relationship between FARSB and HCC progression. We found that the high expression of FARSB in liver cancer is closely related to patients' low survival and poor prognosis. In liver cancer cells, the mRNA and protein expression levels of FARSB are increased and promote cell proliferation and migration. Mechanistically, FARSB activates the mTOR complex 1 (mTORC1) signaling pathway by binding to the component Raptor of the mTORC1 complex to play a role in promoting cancer. In addition, we found that FARSB can inhibit erastin-induced ferroptosis by regulating the mTOR signaling pathway, which may be another mechanism by which FARSB promotes HCC progression. In summary, FARSB promotes HCC progression and is associated with the poor prognosis of patients. FARSB is expected to be a biomarker for early screening and treatment of HCC.
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Affiliation(s)
- Yaofeng Wang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Gengqiao Wang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Shaobo Hu
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Chuanzheng Yin
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Peng Zhao
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Xing Zhou
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Shuyu Shao
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Ran Liu
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Wenjun Hu
- School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (W.H.); (G.L.L.)
| | - Gang Logan Liu
- School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; (W.H.); (G.L.L.)
| | - Wenbo Ke
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
| | - Zifang Song
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; (Y.W.); (G.W.); (S.H.); (C.Y.); (P.Z.); (X.Z.); (S.S.); (R.L.)
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10
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Gupta S, Jani J, Vijayasurya, Mochi J, Tabasum S, Sabarwal A, Pappachan A. Aminoacyl-tRNA synthetase - a molecular multitasker. FASEB J 2023; 37:e23219. [PMID: 37776328 DOI: 10.1096/fj.202202024rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 08/31/2023] [Accepted: 09/12/2023] [Indexed: 10/02/2023]
Abstract
Aminoacyl-tRNA synthetases (AaRSs) are valuable "housekeeping" enzymes that ensure the accurate transmission of genetic information in living cells, where they aminoacylated tRNA molecules with their cognate amino acid and provide substrates for protein biosynthesis. In addition to their translational or canonical function, they contribute to nontranslational/moonlighting functions, which are mediated by the presence of other domains on the proteins. This was supported by several reports which claim that AaRS has a significant role in gene transcription, apoptosis, translation, and RNA splicing regulation. Noncanonical/ nontranslational functions of AaRSs also include their roles in regulating angiogenesis, inflammation, cancer, and other major physio-pathological processes. Multiple AaRSs are also associated with a broad range of physiological and pathological processes; a few even serve as cytokines. Therefore, the multifunctional nature of AaRSs suggests their potential as viable therapeutic targets as well. Here, our discussion will encompass a range of noncanonical functions attributed to Aminoacyl-tRNA Synthetases (AaRSs), highlighting their links with a diverse array of human diseases.
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Affiliation(s)
- Swadha Gupta
- School of Life Sciences, Central University of Gujarat, Gandhinagar, India
| | - Jaykumar Jani
- School of Life Sciences, Central University of Gujarat, Gandhinagar, India
| | - Vijayasurya
- School of Life Sciences, Central University of Gujarat, Gandhinagar, India
| | - Jigneshkumar Mochi
- School of Life Sciences, Central University of Gujarat, Gandhinagar, India
| | - Saba Tabasum
- Dana Farber Cancer Institute, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Akash Sabarwal
- Harvard Medical School, Boston, Massachusetts, USA
- Boston Children's Hospital, Boston, Massachusetts, USA
| | - Anju Pappachan
- School of Life Sciences, Central University of Gujarat, Gandhinagar, India
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11
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Liu Q, Lin F. Lentivirus-induced knockdown of IARS2 expression inhibits the proliferation and promotes the apoptosis of human osteosarcoma cells. Oncol Lett 2022; 24:262. [PMID: 35765273 PMCID: PMC9219035 DOI: 10.3892/ol.2022.13382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 03/09/2022] [Indexed: 11/19/2022] Open
Abstract
Isoleucyl-tRNA synthetase 2 (IARS2), distributed in mitochondria, is an IARS involved in protein synthesis. Notably, IARS2 has been reported to be associated with tumor progression; however, the relationship between osteosarcoma (OS) and IARS2 remains unclear. To investigate the role of IARS2 in human OS, the expression and relationship of IARS2 with survival were firstly analyzed using the Gene Expression Profiling Interactive Analysis 2 database. Subsequently, an IARS2-short hairpin RNA lentiviral vector was established and used to infect the MNNG/HOS and U2OS cell lines. Reverse transcription-quantitative PCR (RT-qPCR) and western blotting were applied to determine the efficiency of IARS2 knockdown. The effects of IARS2 knockdown on cell proliferation, colony formation and apoptosis were evaluated by Celigo, MTT assays, colony formation assays and flow cytomeric analysis. In the present study, IARS2 tends to be high expressed in OS tissue and was associated with survival but this was not significant. The results of RT-qPCR and western blotting showed that the expression of IARS2 was effectively knocked down in the MNNG/HOS and U2OS cell lines. Celigo, MTT and colony formation assays showed that IARS2 knockdown in MNNG/HOS and U2OS cell lines inhibited cell proliferation and colony formation compared with in the control group. Flow cytometric analysis revealed that IARS2 knockdown increased apoptosis. These results suggested that IARS2 may be critical for the proliferation and apoptosis of OS cells.
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Affiliation(s)
- Qi Liu
- Department of Oncology, The Eighth People's Hospital of Shanghai, Shanghai 200235, P.R. China
| | - Feng Lin
- Department of Oncology, The Eighth People's Hospital of Shanghai, Shanghai 200235, P.R. China
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12
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Huang Z, Chen H, Tan P, Huang M, Shi H, Sun B, Cheng Y, Li T, Mou Z, Li Q, Fu W. Sinapic acid inhibits pancreatic cancer proliferation, migration, and invasion via downregulation of the AKT/Gsk-3β signal pathway. Drug Dev Res 2022; 83:721-734. [PMID: 34859906 DOI: 10.1002/ddr.21904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/11/2021] [Accepted: 11/22/2021] [Indexed: 12/23/2022]
Abstract
Among digestive system cancers, the extremely poor prognosis of pancreatic cancer (PC) is a pressing concern. Nonoperative treatments such as targeted and immunotherapy, have improved the current situation, however, the accompanying side effects of these chemicals should not be ignored. Here, we discovered a novel hydroxycinnamic acid named sinapic acid (SA) derived from fruits, vegetables, cereals, and oil crops as an effective anti-PC molecule. Both the in vitro and in vivo models we designed showed that SA exhibited anticancer activities but not apoptosis induction. Research on the underlying mechanisms illustrated that AKT phosphorylation was blocked by SA, and the downstream Gsk-3β was downregulated subsequently. Our study revealed the inhibitory activity and underlying mechanisms of SA, providing evidence that SA is a potential strategy for cancer research and can be a promising option of PC chemotherapy.
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Affiliation(s)
- Zhiwei Huang
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Hao Chen
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Peng Tan
- Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Meizhou Huang
- Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Hao Shi
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Bo Sun
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yonglang Cheng
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Tongxi Li
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Zhiqiang Mou
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Qiu Li
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Wenguang Fu
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
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13
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Xu L, Huang X, Lou Y, Xie W, Zhao H. Regulation of apoptosis, autophagy and ferroptosis by non‑coding RNAs in metastatic non‑small cell lung cancer (Review). Exp Ther Med 2022; 23:352. [PMID: 35493430 PMCID: PMC9019694 DOI: 10.3892/etm.2022.11279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/10/2022] [Indexed: 11/06/2022] Open
Abstract
Non-small cell lung cancer (NSCLC), a common type of cancer worldwide, is normally associated with a poor prognosis. It is difficult to treat successfully as it often metastasizes into brain or bone. Methods to facilitate the induction of effective programmed cell death (PCD) in NSCLC cells to reverse drug resistance, or to inhibit the invasion and migration of NSCLC cells, are currently under investigation. The present study summarized the regulatory functions of PCD, including apoptosis, autophagy and ferroptosis, in the context of NSCLC metastasis. It further summarized how regulatory agents, including long non-coding RNAs, circular RNAs and microRNAs, regulate PCD during the metastasis of NSCLC and characterized new potential diagnostic biomarkers of NSCLC metastasis.
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Affiliation(s)
- Lei Xu
- Department of Orthopedics, Chengdu Seventh People's Hospital, Chengdu, Sichuan 610213, P.R. China
| | - Xin Huang
- Department of Orthopedics, Chengdu Seventh People's Hospital, Chengdu, Sichuan 610213, P.R. China
| | - Yan Lou
- Department of Orthopedic Oncology, Spine Tumor Center, Changzheng Hospital, Naval Military Medical University, Shanghai 200003, P.R. China
| | - Wei Xie
- Department of Orthopedics, Chengdu Seventh People's Hospital, Chengdu, Sichuan 610213, P.R. China
| | - Hangyu Zhao
- Department of Orthopedics, Chengdu Seventh People's Hospital, Chengdu, Sichuan 610213, P.R. China
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14
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Zhang X, Dong W, Zhang J, Liu W, Yin J, Shi D, Ma W. A Novel Mitochondrial-Related Nuclear Gene Signature Predicts Overall Survival of Lung Adenocarcinoma Patients. Front Cell Dev Biol 2021; 9:740487. [PMID: 34760888 PMCID: PMC8573348 DOI: 10.3389/fcell.2021.740487] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/28/2021] [Indexed: 01/09/2023] Open
Abstract
Background: Lung cancer is the leading cause of cancer-related death worldwide, of which lung adenocarcinoma (LUAD) is one of the main histological subtypes. Mitochondria are vital for maintaining the physiological function, and their dysfunction has been found to be correlated with tumorigenesis and disease progression. Although, some mitochondrial-related genes have been found to correlate with the clinical outcomes of multiple tumors solely. The integrated relationship between nuclear mitochondrial genes (NMGs) and the prognosis of LUAD remains unclear. Methods: The list of NMGs, gene expression data, and related clinical information of LUAD were downloaded from public databases. Bioinformatics methods were used and obtained 18 prognostic related NMGs to construct a risk signature. Results: There were 18 NMGs (NDUFS2, ATP8A2, SCO1, COX14, COA6, RRM2B, TFAM, DARS2, GARS, YARS2, EFG1, GFM1, MRPL3, MRPL44, ISCU, CABC1, HSPD1, and ETHE1) identified by LASSO regression analysis. The mRNA expression of these 18 genes was positively correlated with their relative linear copy number alteration (CNA). Meanwhile, the established risk signature could effectively distinguish high- and low-risk patients, and its predictive capacity was validated in three independent gene expression omnibus (GEO) cohorts. Notably, a significantly lower prevalence of actionable EGFR alterations was presented in patients with high-risk NMGs signature but accompanied with a more inflame immune tumor microenvironment. Additionally, multicomponent Cox regression analysis showed that the model was stable when risk score, tumor stage, and lymph node stage were considered, and the 1-, 3-, and 5-year AUC were 0.74, 0.75, and 0.70, respectively. Conclusion: Together, this study established a signature based on NMGs that is a prognostic biomarker for LUAD patients and has the potential to be widely applied in future clinical settings.
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Affiliation(s)
- Xiangwei Zhang
- Department of General Thoracic, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Wei Dong
- Department of General Thoracic, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jishuai Zhang
- Department of General Thoracic, Feicheng Hospital Affiliated to Shandong First Medical University, Feicheng, China
| | - Wenqiang Liu
- Department of General Thoracic, Shenxian County People's Hospital of Shandong Provincial Group, Liaocheng, China
| | - Jingjing Yin
- Department of General Thoracic, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Duozhi Shi
- Lifehealthcare Clinical Laboratories, Hangzhou, China
| | - Wei Ma
- Department of General Thoracic, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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15
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Understanding the genomic architecture of clinical mastitis in Bos indicus. 3 Biotech 2021; 11:466. [PMID: 34745817 DOI: 10.1007/s13205-021-03012-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 10/01/2021] [Indexed: 12/26/2022] Open
Abstract
This study elucidated potential genetic variants and QTLs associated with clinical mastitis incidence traits in Bos indicus breed, Sahiwal. Estimated breeding values for the traits (calculated using Bayesian inference) were used as pseudo-phenotypes for association with genome-wide SNPs and further QTL regions underlying the traits were identified. In all, 25 SNPs were found to be associated with the traits at the genome-wide suggestive threshold (p ≤ 5 × 10-4) and these SNPs were used to define QTL boundaries based on the linkage disequilibrium structure. A total of 16 QTLs were associated with the trait EBVs including seven each for clinical mastitis incidence (CMI) in first and second lactations and two for CMI in third lactation. Nine out of sixteen QTLs overlapped with the already reported QTLs for mastitis traits, whereas seven were adjudged as novel ones. Important candidates for clinical mastitis in the identified QTL regions included DNAJB9, ELMO1, ARHGAP26, NR3C1, CACNB2, RAB4A, GRB2, NUP85, SUMO2, RBPJ, and RAB33B genes. These findings shed light on the genetic architecture of the disease in Bos indicus, and present potential regions for fine mapping and downstream analysis in future.
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16
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Bian M, Huang S, Yu D, Zhou Z. tRNA Metabolism and Lung Cancer: Beyond Translation. Front Mol Biosci 2021; 8:659388. [PMID: 34660690 PMCID: PMC8516113 DOI: 10.3389/fmolb.2021.659388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 08/25/2021] [Indexed: 12/15/2022] Open
Abstract
Lung cancer, one of the most malignant tumors, has extremely high morbidity and mortality, posing a serious threat to global health. It is an urgent need to fully understand the pathogenesis of lung cancer and provide new ideas for its treatment. Interestingly, accumulating evidence has identified that transfer RNAs (tRNAs) and tRNA metabolism–associated enzymes not only participate in the protein translation but also play an important role in the occurrence and development of lung cancer. In this review, we summarize the different aspects of tRNA metabolism in lung cancer, such as tRNA transcription and mutation, tRNA molecules and derivatives, tRNA-modifying enzymes, and aminoacyl-tRNA synthetases (ARSs), aiming at a better understanding of the pathogenesis of lung cancer and providing new therapeutic strategies for it.
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Affiliation(s)
- Meng Bian
- Department of Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shiqiong Huang
- Department of Pharmacy, The First Hospital of Changsha, Changsha, China
| | - Dongsheng Yu
- Department of Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zheng Zhou
- Department of Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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17
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Jiang X, Xia Y, Meng H, Liu Y, Cui J, Huang H, Yin G, Shi B. Identification of a Nuclear Mitochondrial-Related Multi-Genes Signature to Predict the Prognosis of Bladder Cancer. Front Oncol 2021; 11:746029. [PMID: 34692528 PMCID: PMC8528313 DOI: 10.3389/fonc.2021.746029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/13/2021] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Bladder cancer (BC) is one of the most prevalent urinary cancers, and its management is still a problem causing recurrence and progression, elevating mortality. MATERIALS AND METHODS We aimed at the nuclear mitochondria-related genes (MTRGs), collected from the MITOMAP: A Human Mitochondrial Genome Database. Meanwhile, the expression profiles and clinical information of BC were downloaded from the Cancer Genome Atlas (TCGA) as a training group. The univariate, multivariate, and the least absolute shrinkage and selection operator (LASSO) Cox regression analyses were used to construct a nuclear mitochondrial-related multi-genes signature and the prognostic nomogram. RESULTS A total of 17 nuclear MTRGs were identified to be correlated with the overall survival (OS) of BC patients, and a nuclear MTRGs signature based on 16 genes expression was further determined by the LASSO Cox regression analysis. Based on a nuclear MTRGs scoring system, BC patients from the TCGA cohort were divided into high- and low- nuclear MTRGs score groups. Patients with a high nuclear MTRGs score exhibited a significantly poorer outcome (median OS: 92.90 vs 20.20 months, p<0.0001). The nuclear MTRGs signature was further verified in three independent datasets, namely, GSE13507, GSE31684, and GSE32548, from the Gene Expression Omnibus (GEO). The BC patients with a high nuclear MTRGs score had significantly worse survival (median OS in GSE13507: 31.52 vs 98.00 months, p<0.05; GSE31684: 32.85 months vs unreached, p<0.05; GSE32548: unreached vs unreached, p<0.05). Furthermore, muscle-invasive bladder cancer (MIBC) patients had a significantly higher nuclear MTRGs score (p<0.05) than non-muscle-invasive bladder cancer (NMIBC) patients. The integrated signature outperformed each involved MTRG. In addition, a nuclear MTRGs-based nomogram was constructed as a novel prediction prognosis model, whose AUC values for OS at 1, 3, 5 years were 0.76, 0.75, and 0.75, respectively, showing the prognostic nomogram had good and stable predicting ability. Enrichment analyses of the hallmark gene set and KEGG pathway revealed that the E2F targets, G2M checkpoint pathways, and cell cycle had influences on the survival of BC patients. Furthermore, the analysis of tumor microenvironment indicated more CD8+ T cells and higher immune score in patients with high nuclear MTRGs score, which might confer sensitivity to immune checkpoint inhibitors. CONCLUSIONS Not only could the signature and prognostic nomogram predict the prognosis of BC, but it also had potential therapeutic guidance.
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Affiliation(s)
| | | | | | | | | | | | | | - Benkang Shi
- Department of Urology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Ji’nan, China
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18
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Kim SH, Choi JH, Wang P, Go CD, Hesketh GG, Gingras AC, Jafarnejad SM, Sonenberg N. Mitochondrial Threonyl-tRNA Synthetase TARS2 Is Required for Threonine-Sensitive mTORC1 Activation. Mol Cell 2020; 81:398-407.e4. [PMID: 33340489 DOI: 10.1016/j.molcel.2020.11.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 05/14/2020] [Accepted: 11/19/2020] [Indexed: 02/02/2023]
Abstract
Mechanistic target of rapamycin complex 1 (mTORC1) controls cell growth and proliferation by sensing fluctuations in environmental cues such as nutrients, growth factors, and energy levels. The Rag GTPases (Rags) serve as a critical module that signals amino acid (AA) availability to modulate mTORC1 localization and activity. Recent studies have demonstrated how AAs regulate mTORC1 activity through Rags. Here, we uncover an unconventional pathway that activates mTORC1 in response to variations in threonine (Thr) levels via mitochondrial threonyl-tRNA synthetase TARS2. TARS2 interacts with inactive Rags, particularly GTP-RagC, leading to increased GTP loading of RagA. mTORC1 activity in cells lacking TARS2 is resistant to Thr repletion, showing that TARS2 is necessary for Thr-dependent mTORC1 activation. The requirement of TARS2, but not cytoplasmic threonyl-tRNA synthetase TARS, for this effect demonstrates an additional layer of complexity in the regulation of mTORC1 activity.
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Affiliation(s)
- Sung-Hoon Kim
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada
| | - Jung-Hyun Choi
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada
| | - Peng Wang
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada
| | - Christopher D Go
- Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G 1X5, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Geoffrey G Hesketh
- Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G 1X5, Canada
| | - Anne-Claude Gingras
- Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G 1X5, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Seyed Mehdi Jafarnejad
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast BT9 7AE, UK.
| | - Nahum Sonenberg
- Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada; Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada.
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19
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Zhou Z, Sun B, Nie A, Yu D, Bian M. Roles of Aminoacyl-tRNA Synthetases in Cancer. Front Cell Dev Biol 2020; 8:599765. [PMID: 33330488 PMCID: PMC7729087 DOI: 10.3389/fcell.2020.599765] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/09/2020] [Indexed: 12/18/2022] Open
Abstract
Aminoacyl-tRNA synthetases (ARSs) catalyze the ligation of amino acids to their cognate transfer RNAs (tRNAs), thus playing an important role in protein synthesis. In eukaryotic cells, these enzymes exist in free form or in the form of multi-tRNA synthetase complex (MSC). The latter contains nine cytoplasmic ARSs and three ARS-interacting multifunctional proteins (AIMPs). Normally, ARSs and AIMPs are regarded as housekeeping molecules without additional functions. However, a growing number of studies indicate that ARSs are involved in a variety of physiological and pathological processes, especially tumorigenesis. Here, we introduce the roles of ARSs and AIMPs in certain cancers, such as colon cancer, lung cancer, breast cancer, gastric cancer and pancreatic cancer. Furthermore, we particularly focus on their potential clinical applications in cancer, aiming at providing new insights into the pathogenesis and treatment of cancer.
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Affiliation(s)
- Zheng Zhou
- Department of Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bao Sun
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Institution of Clinical Pharmacy, Central South University, Changsha, China
| | - Anzheng Nie
- Department of Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dongsheng Yu
- Department of Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Meng Bian
- Department of Chinese Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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20
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Wang J, Yang XL. Novel functions of cytoplasmic aminoacyl-tRNA synthetases shaping the hallmarks of cancer. Enzymes 2020; 48:397-423. [PMID: 33837711 DOI: 10.1016/bs.enz.2020.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
With the intense protein synthesis demands of cancer, the classical enzymatic role of aminoacyl-tRNA synthetases (aaRSs) is required to sustain tumor growth. However, many if not all aaRSs also possess regulatory functions outside of the domain of catalytic tRNA aminoacylation, which can further contribute to or even antagonize cancers in non-translational ways. These regulatory functions of aaRS are likely to be manipulated in cancer to ensure uncontrolled growth and survival. This review will largely focus on the unique capacities of individual and sometimes collaborating synthetases to influence the hallmarks of cancer, which represent the principles and characteristics of tumorigenesis. An interesting feature of cytoplasmic aaRSs in higher eukaryotes is the formation of a large multi-synthetase complex (MSC) with nine aaRSs held together by three non-enzymatic scaffolding proteins (AIMPs). The MSC-associated aaRSs, when released from the complex in response to certain stimulations, often participate in pathways that promote tumorigenesis. In contrast, the freestanding aaRSs are associated with activities in both directions-some promoting while others inhibiting cancer. The AIMPs have emerged as potent tumor suppressors through their own distinct mechanisms. We propose that the tumor-suppressive roles of AIMPs may also be a consequence of keeping the cancer-promoting aaRSs within the MSC. The rich connections between cancer and the synthetases have inspired the development of innovative cancer treatments that target or take advantage of these novel functions of aaRSs.
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Affiliation(s)
- Justin Wang
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States
| | - Xiang-Lei Yang
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States.
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21
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Liang Z, Zhong Y, Meng L, Chen Y, Liu Y, Wu A, Li X, Wang M. HAX1 enhances the survival and metastasis of non-small cell lung cancer through the AKT/mTOR and MDM2/p53 signaling pathway. Thorac Cancer 2020; 11:3155-3167. [PMID: 32926529 PMCID: PMC7606027 DOI: 10.1111/1759-7714.13634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 12/24/2022] Open
Abstract
Background HS‐1‐associated protein‐1 (HAX1) has been reported to be overexpressed in non‐small cell lung cancer (NSCLC) tissues. However, the underlying mechanism of HAX1 in NSCLC has not previously been demonstrated. The present study investigated the role and underlying mechanism of HAX1 in NSCLC. Methods The HAX1 expression were confirmed in NSCLC tissues through TCGA database and qRT‐PCR. Moreover, we performed qRT‐PCR, Western blotting, Transwell assays, TUNEL assays and so on to evaluate the role of HAX1 in A549 and H1299 cell lines. Results mRNA expression of HAX1 was overexpressed in NSCLC tissues compared to adjacent normal tissues according to The Cancer Genome Atlas (TCGA) database. QRT‐PCR assays showed that HAX1 mRNA expression was upregulated in NSCLC tissues. The high HAX1 mRNA levels were found to be positively associated with tumor size, TNM stage and lymphatic metastasis. Silencing of HAX1 promoted apoptosis and reduced invasion of A549 and H1299 cells by inhibiting the AKT/mTOR and MDM2/P53 signal pathway. AKT agonist SC79 could inhibit apoptosis and promote proliferation, migration and invasion of A549 and H1299 cells transfected with si‐HAX1. Conclusions The present study provided a better understanding of HAX1 mechanism in NSCLC and potential therapeutic target for NSCLC.
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Affiliation(s)
- Zhigang Liang
- Department of Thoracic Surgery, Ningbo First Hospital, Ningbo, China
| | - Yuan Zhong
- Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lifei Meng
- Department of Thoracic Surgery, Ningbo First Hospital, Ningbo, China
| | - Yi Chen
- Department of Thoracic Surgery, Ningbo First Hospital, Ningbo, China
| | - Yahui Liu
- Department of Thoracic Surgery, Ningbo First Hospital, Ningbo, China
| | - Aihua Wu
- Department of Clinical Laboratory, Ningbo First Hospital, Ningbo, China
| | - Xinjian Li
- Department of Thoracic Surgery, Ningbo First Hospital, Ningbo, China
| | - Mingsong Wang
- Department of Thoracic Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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22
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Wang R, Chen C, Kang W, Meng G. SNHG9 was upregulated in NSCLC and associated with DDP-resistance and poor prognosis of NSCLC patients. Am J Transl Res 2020; 12:4456-4466. [PMID: 32913519 PMCID: PMC7476120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
Lung cancer, a leading cause of cancer-related mortalities worldwide and non-small cell lung cancer (NSCLC) is the main subtype of lung cancer. As a first-line chemotherapeutic drug used for NSCLC, acquired resistance retarded the clinical application of cisplatin (DDP). We herein reported long non-coding RNA SNHG9 was over-expressed in NSCLC tissues and cell lines compared with normal lung tissues and cell line; Increased SNHG9 was also observed in DDP resistant NSCLC tissues and cell lines compared with their DDP sensitive counterparts. Elevated expression of SNHG9 was associated with lower overall survival (OS) rate in NSCLC patients. Besides, silence of SNHG9 suppressed DDP resistance of NSCLC cells. Furthermore, CAPRIN1 was positively regulated by SNHG9 and mediated the promoting role of SNHG9 in DDP resistance of NSCLC cells. SNHG9 could be used as a potential target for DDP resistant NSCLC therapy.
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Affiliation(s)
- Ruixue Wang
- Department of Emergency, The First Affiliated Hospital of Anhui Medical UniversityHefei 230031, Anhui Province, People’s Republic of China
| | - Changyu Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang UniversityNanchang 330006, Jiangxi Province, People’s Republic of China
| | - Weibiao Kang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical UniversityHefei 230031, Anhui Province, People’s Republic of China
| | - Guangjun Meng
- Department of Emergency, The First Affiliated Hospital of Anhui Medical UniversityHefei 230031, Anhui Province, People’s Republic of China
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23
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Wencong M, Jinghan W, Yong Y, Jianyang A, Bin L, Qingbao C, Chen L, Xiaoqing J. FOXK1 Promotes Proliferation and Metastasis of Gallbladder Cancer by Activating AKT/mTOR Signaling Pathway. Front Oncol 2020; 10:545. [PMID: 32363163 PMCID: PMC7180204 DOI: 10.3389/fonc.2020.00545] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 03/26/2020] [Indexed: 01/10/2023] Open
Abstract
Gallbladder cancer (GBC) is one of the most lethal malignancies worldwide, with extremely poor prognosis. Recently, forkhead box k1 (FOXK1), a member of the FOX transcription factor family, has been reported to be correlated with tumor progression in multiple malignancies. However, the role of FOXK1 in GBC has not been elucidated. In this study, we demonstrated that the expression level of FOXK1 was elevated in human GBC tissues and associated with increased liver metastasis, poor histological differentiation, advanced TNM stage, and shorter overall survival. Knockdown of FOXK1 expression inhibited GBC cells proliferation and metastasis. Consistently, overexpression of FOXK1 promoted GBC cells progression. Mechanical investigations verified that knockdown of FOXK1 could lead to G1/S cell cycle arrest through downregulating CDK4, CDK6, cyclin D1, and cyclin E1. And FOXK1 could regulate the expression of epithelial–mesenchymal transition (EMT) related proteins E-cad, N-cad, and Vimentin. Moreover, we found that FOXK1 could regulate the activation of Akt/mTOR signaling pathway. In addition, AKT special inhibitor MK-2206 could abolish the proliferation and metastasis discrepancy between FOXK1 overexpression GBC cells and control cells, which suggested the tumorpromoting effect of FOXK1 may be partially related with the activations of Akt/mTOR signaling pathway. Collectively, our results suggested that FOXK1 promotes GBC cells progression and represent a novel prognostic biomarker and potential therapeutic target in GBC.
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Affiliation(s)
- Ma Wencong
- Department of Biliary Tract Surgery I, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Wang Jinghan
- Department of Biliary Tract Surgery I, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Yu Yong
- Department of Biliary Tract Surgery I, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Ao Jianyang
- Department of Biliary Tract Surgery I, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Li Bin
- Department of Biliary Tract Surgery I, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Cheng Qingbao
- Department of Biliary Tract Surgery I, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Liu Chen
- Department of Biliary Tract Surgery I, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
| | - Jiang Xiaoqing
- Department of Biliary Tract Surgery I, Third Affiliated Hospital of Second Military Medical University, Shanghai, China
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24
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Ren W, Zhao Q, Yu M, Guo L, Chang H, Jiang X, Luo Y, Huang W, He G. Design and synthesis of novel spirooxindole–indenoquinoxaline derivatives as novel tryptophanyl-tRNA synthetase inhibitors. Mol Divers 2019; 24:1043-1063. [DOI: 10.1007/s11030-019-10011-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 10/29/2019] [Indexed: 12/11/2022]
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