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Wang Q, Huang Q, Ying X, Shen J, Duan S. Unveiling the role of tRNA-derived small RNAs in MAPK signaling pathway: implications for cancer and beyond. Front Genet 2024; 15:1346852. [PMID: 38596214 PMCID: PMC11002130 DOI: 10.3389/fgene.2024.1346852] [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: 11/30/2023] [Accepted: 03/13/2024] [Indexed: 04/11/2024] Open
Abstract
tRNA-derived small RNAs (tsRNAs) are novel small non-coding RNAs originating from mature or precursor tRNAs (pre-tRNA), typically spanning 14 to 30 nt. The Mitogen-activated protein kinases (MAPK) pathway orchestrates cellular responses, influencing proliferation, differentiation, apoptosis, and transformation. tsRNAs influence the expression of the MAPK signaling pathway by targeting specific proteins within the pathway. Presently, four MAPK-linked tsRNAs have implications in gastric cancer (GC) and high-grade serous ovarian cancer (HGSOC). Notably, tRF-Glu-TTC-027 and tRF-Val-CAC-016 modulate MAPK-related protein expression, encompassing p38, Myc, ERK, CyclinD1, CyclinB, and c-Myc, hindering GC progression via MAPK pathway inhibition. Moreover, tRF-24-V29K9UV3IU and tRF-03357 remain unexplored in specific mechanisms. KEGG analysis posits varied tsRNAs in MAPK pathway modulation for diverse non-cancer maladies. Notably, high tRF-36-F900BY4D84KRIME and tRF-23-87R8WP9IY expression relates to varicose vein (VV) risk. Elevated tiRNA-Gly-GCC-001, tRF-Gly-GCC-012, tRF-Gly-GCC-013, and tRF-Gly-GCC-016 target spinal cord injury (SCI)-related brain-derived neurotrophic factor (BDNF), influencing MAPK expression. tRF-Gly-CCC-039 associates with diabetes foot sustained healing, while tRF-5014a inhibits autophagy-linked ATG5 in diabetic cardiomyopathy (DCM). Additionally, tsRNA-14783 influences keloid formation by regulating M2 macrophage polarization. Upregulation of tRF-Arg-ACG-007 and downregulation of tRF-Ser-GCT-008 are associated with diabetes. tsRNA-04002 alleviates Intervertebral disk degeneration (IDD) by targeting PRKCA. tsRNA-21109 alleviates Systemic lupus erythematosus (SLE) by inhibiting macrophage M1 polarization. The upregulated tiNA-Gly-GCC-002 and the downregulated tRF-Ala-AGC-010, tRF-Gln-CTG-005 and tRF-Leu-AAG-001 may be involved in the pathogenesis of Lupus nephritis (LN) by affecting the expression of MAPK pathway. Downregulation of tsRNA-1018, tsRNA-3045b, tsRNA-5021a and tsRNA-1020 affected the expression of MAPK pathway, thereby improving Acute lung injury (ALI). This review comprehensively dissects tsRNA roles in MAPK signaling across cancers and other diseases, illuminating a novel avenue for translational medical exploration.
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Affiliation(s)
- Qurui Wang
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China
| | - Qinyuan Huang
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China
| | - Xiaowei Ying
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China
| | - Jinze Shen
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China
| | - Shiwei Duan
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China
- Department of Clinical Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China
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Qian K, Xu W, Xia X, Ding J. Methyltransferase-like 3 (METTL3) mediated N6-methyladenosine (m6A) modifications facilitate mir-25-3p maturation to promote gastrointestinal stromal tumors (GISTs) progression. Genes Genomics 2022; 44:1519-1530. [PMID: 36040683 DOI: 10.1007/s13258-022-01301-5] [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: 03/21/2022] [Accepted: 08/03/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Methyltransferase-like 3 (METTL3) is an RNA N6-methyladenosine (m6A) methyltransferase, which plays a critical role in micorRNA (miRNAs) processing and maturation, but it is still unclear whether METTL3 regulated miRNAs participates in the regulation of cancer aggressiveness in gastrointestinal stromal tumors (GISTs). OBJECTIVES This study was designed to investigate this issue, and uncover the potential underlying mechanisms. METHODS the expression of METTL3 in GISTs tissues and cell lines were determined by RT-qPCR and Western blot. Cell proliferation and migration were assessed by colony formation, CCK-8 and Transwell. The mRNA expression of all proteins was detected by RT-qPCR, and tumor xenograft study was applied to confirm the effect of METTL3 on GISTs development in vivo. RESULTS In our study, we showed that METTL3 was significantly upregulated in GISTs tissues and cell lines. Functional experiments demonstrated that overexpression of METTL3 promoted GISTs cell malignant biological behavior and tumor growth in vitro and in vivo, and conversely, silencing of METTL3 had opposite effects and suppressed GISTs progression. Further mechanistical experiments verified that METTL3 promoted the maturation of miR-25-3p in an m6A-dependent manner. Similar to METTL3, miR-25-3p was also validated as an oncogene to promote cancer development in GISTs. Finally, our rescuing experiments hinted that silencing of miR-25-3p abrogated the tumor-initiating effects of METTL3 overexpression on GISTs. CONCLUSION Collectively, those results indicated that METTL3 played an oncogenic role in GISTs through positively modulating the miR-25-3p in an m6A-dependent manner, and we firstly discussed how the METTL3/m6A/miR-25-3p axis affected GISTs development.
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Affiliation(s)
- Kun Qian
- Department of General Surgery, Shangrao People's Hospital, 334000, Shangrao, China
| | - Wei Xu
- Department of Gastrointestinal Surgery, Colorectal Tumor Minimally Invasive Center, The Second Affiliated Hospital of Nanchang University, 330000, Nanchang, China
| | - Xiaoyao Xia
- Department of General Surgery, Shangrao People's Hospital, 334000, Shangrao, China
| | - Jinhuo Ding
- Department of General Surgery, Shangrao People's Hospital, 334000, Shangrao, China. .,Department of General Surgery, Shangrao People's Hospital, No. 86 Shuyuan Road, 334000, Shangrao City, Jiangxi Province Shangrao, China.
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SEZ6L2, regulated by USF1, accelerates the growth and metastasis of breast cancer. Exp Cell Res 2022; 417:113194. [PMID: 35523305 DOI: 10.1016/j.yexcr.2022.113194] [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: 11/29/2021] [Revised: 04/05/2022] [Accepted: 05/01/2022] [Indexed: 12/24/2022]
Abstract
Breast cancer (BC) is the second cause of cancer-related mortality in women. Seizure related 6 homolog like 2 (SEZ6L2), a protein presented on cell surface, is involved in tumor development. It was found to be highly expressed in BC, however, its role in BC remains unclear. Herein, we aimed to explore the role of SEZ6L2 in BC. Firstly, the correlationship between SEZ6L2 expression and the clinic pathological characteristics of patients diagnosed with BC was analyzed. Subsequently, the role of SEZ6L2 was further explored using MTT, transwell invasion, flow cytometry, colony formation and wound healing assays. The result showed that the level of SEZ6L2 was remarkably correlated with the TNM stage, HER-2 status and lymph node metastasis of BC. Knockdown of SEZ6L2 significantly suppressed the proliferation of BC cells and induced cell cycle arrest at G1 phase. In addition, SEZ6L2 knockdown repressed their migration and invasion. On the contrary, SEZ6L2 overexpression performed the opposite effects. Furthermore, SEZ6L2 also accelerated the in vivo tumorigenesis of BC cells. Additionally, according to bioinformatics resources, we identified upstream transcription factor 1 (USF1) as a transcriptional factor which bound to the promoter of SEZ6L2 and positively regulated its transcription. In conclusion, this study demonstrated that SEZ6L2 was transcriptionally regulated by USF1 and was involved in the growth and metastasis of BC cells. Revealing the role of SEZ6L2 in BC provides additional knowledge for the pathogenesis of BC, which may benefit to BC therapy.
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Xu Y, Sun X, Chen J, Xu J, Wei J. Knockdown of lncRNA ENST00000603829 Inhibits the Proliferation and Invasion of Salivary Gland Pleomorphic Adenoma through Regulating Cyclin D1. Appl Bionics Biomech 2022; 2022:8805305. [PMID: 35528529 PMCID: PMC9068327 DOI: 10.1155/2022/8805305] [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: 02/25/2022] [Revised: 04/02/2022] [Accepted: 04/09/2022] [Indexed: 11/17/2022] Open
Abstract
Objective Salivary gland pleomorphic adenoma (SPA) is a benign neoplasm that can still recur even after radical surgery. To investigate its underlying pathogenesis, here, we examined the significance of lncRNA ENST00000603829 in the proliferation and invasion of SPA. Methods SPA tissues (n = 30) and adjacent normal tissues (NC; n = 30) were collected from SPA patients treated at our hospital from June 2017 to December 2019. The human normal salivary gland epithelial cell line (HSG) and SPA cells (PA30, PA37, and PA116) were cultured. qRT-PCR was used for detecting the expression of cyclin D1 and lncRNA ENST00000603829 in tissues and cells. lncRNA ENST00000603829/cyclin D1 was knocked down or overexpressed in PA116 cells. The expression of cyclin D1 and lncRNA ENST00000603829 in different cell lines was examined using qRT-PCR. Transwell assays and cell counting kit-8 (CCK-8) were used to assess cellular invasion and proliferation. The testing result regarding the apoptosis rate and cell cycle was obtained via flow cytometry. Western blot provided the measurement of cyclin D1 expression in cells. Results We observed an upregulation of lncRNA ENST00000603829 and cyclin D1 expression in SPA tissues and cells. Knockdown of lncRNA ENST00000603829 inhibited cell invasion and proliferation, promoting apoptosis and retaining the cells during the G0/G1 phase. However, such effects of lncRNA ENST00000603829 knockdown were inhibited when cyclin D1 was overexpressed. Conclusion lncRNA ENST00000603829 can promote the occurrence and development of SPA through increasing cyclin D1 expression.
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Affiliation(s)
- Yi Xu
- Department of Stomatology, Taizhou First People's Hospital, Taizhou, Zhejiang 318020, China
| | - Xin Sun
- Department of Stomatology, Taizhou First People's Hospital, Taizhou, Zhejiang 318020, China
| | - Jing Chen
- Department of Stomatology, Taizhou First People's Hospital, Taizhou, Zhejiang 318020, China
| | - Jinbiao Xu
- Department of Stomatology, Taizhou First People's Hospital, Taizhou, Zhejiang 318020, China
| | - Junshui Wei
- Department of Stomatology, Taizhou First People's Hospital, Taizhou, Zhejiang 318020, China
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Yu Y, Niu J, Zhang X, Wang X, Song H, Liu Y, Jiao X, Chen F. Identification and Validation of HOTAIRM1 as a Novel Biomarker for Oral Squamous Cell Carcinoma. Front Bioeng Biotechnol 2022; 9:798584. [PMID: 35087800 PMCID: PMC8787327 DOI: 10.3389/fbioe.2021.798584] [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: 10/20/2021] [Accepted: 12/24/2021] [Indexed: 12/23/2022] Open
Abstract
ORAL squamous cell carcinoma (OSCC) is a malignant tumor with the highest incidence among tumors involving the oral cavity maxillofacial region, and is notorious for its high recurrence and metastasis potential. Long non-coding RNAs (lncRNAs), which regulate the genesis and evolution of cancers, are potential prognostic biomarkers. This study identified HOTAIRM1 as a novel significantly upregulated lncRNA in OSCC, which is strongly associated with unfavorable prognosis of OSCC. Systematic bioinformatics analyses demonstrated that HOTAIRM1 was closely related to tumor stage, overall survival, genome instability, the tumor cell stemness, the tumor microenvironment, and immunocyte infiltration. Using biological function prediction methods, including Weighted gene co-expression network analysis (WGCNA), Gene set enrichment analysis (GSEA), and Gene set variation analysis (GSVA), HOTAIRM1 plays a pivotal role in OSCC cell proliferation, and is mainly involved in the regulation of the cell cycle. In vitro, cell loss-functional experiments confirmed that HOTAIRM1 knockdown significantly inhibited the proliferation of OSCC cells, and arrested the cell cycle in G1 phase. At the molecular level, PCNA and CyclinD1 were obviously reduced after HOTAIRM1 knockdown. The expression of p53 and p21 was upregulated while CDK4 and CDK6 expression was decreased by HOTAIRM1 knockdown. In vivo, knocking down HOTAIRM1 significantly inhibited tumor growth, including the tumor size, weight, volume, angiogenesis, and hardness, monitored by ultrasonic imaging and magnetic resonance imaging In summary, our study reports that HOTAIRM1 is closely associated with tumorigenesis of OSCC and promotes cell proliferation by regulating cell cycle. HOTAIRM1 could be a potential prognostic biomarker and a therapeutic target for OSCC.
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Affiliation(s)
- Yixiu Yu
- Department of Oral Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiamei Niu
- Department of Abdominal Ultrasonography, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xingwei Zhang
- Department of Oral Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xue Wang
- Department of Oral Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongquan Song
- Department of Oral Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yingqun Liu
- Pediatric Dentistry Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaohui Jiao
- Department of Oral Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Xiaohui Jiao , ; Fuyang Chen,
| | - Fuyang Chen
- Department of Stomatology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Xiaohui Jiao , ; Fuyang Chen,
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Zhang L, Zhang H, Li Y, Wang L. C1orf63 silencing affects breast cancer cell proliferation, apoptosis, and cycle distribution by NF-κB signaling pathway. Am J Transl Res 2021; 13:2599-2607. [PMID: 34017419 PMCID: PMC8129316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To investigate the effect of C1orf63 on breast cancer cell (BCC) proliferation, apoptosis, and cycle distribution and related mechanisms. METHODS The expression of C1orf63 was interfered with in BCC line MCF and cells were divided into a C1orf63 overexpression group, C1orf63 silence group, blank group, and empty group. The mRNA expression of C1orf63 and the proliferation, apoptosis, and cycle distribution of BCCs were detected. The mRNA expression levels of NF-κB signaling pathway factors (p-IκBα, CyclinD1, CDK4, Bcl-2, and Bax) in each group were also detected. RESULTS There was no significant difference between the blank group and empty group in the expression level of C1orf63 mRNA, cell proliferation rate, apoptosis rate, cell distribution rate, or mRNA expression levels of the NF-κB signaling pathway factors (all P>0.05). The expression levels of C1orf63 mRNA in the C1orf63 silenced group were lower than those in the other two groups (P<0.05). The cell proliferation rate, cell distribution in S phase and G2/M phase, and the mRNA expression levels of NF-κB signaling pathway factors (p-IκBα, CyclinD1, CDK4, and Bcl-2) in the C1orf63 silenced group at each time point were lower than those in the other two groups (all P<0.05). The apoptosis rate, cells in G1 phase, and the Bax mRNA expression level in C1orf63 silenced group at each time point were higher than those in the other two groups (all P<0.05). CONCLUSION Down-regulation of C1orf63 acts on the NF-κB signaling pathway to regulate the expression of p-IκBα, CyclinD1, and CDK4, so as to inhibit BCC proliferation, promote cell apoptosis, and block the cell cycle.
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Affiliation(s)
- Lijun Zhang
- Department of Breast Surgery, The First People’s Hospital of JingzhouJingzhou, Hubei Province, China
| | - Hua Zhang
- Department of General Surgery Ward 3, Affiliated Taihe Hospital of Hubei University of MedicineShiyan, Hubei Province, China
| | - Yaqiong Li
- Department of Thyroid, Breast and Vascular Surgery, Renmin Hospital, Hubei University of MedicineShiyan, Hubei Province, China
| | - Lingcheng Wang
- Department of Thyroid, Breast and Vascular Surgery, Renmin Hospital, Hubei University of MedicineShiyan, Hubei Province, China
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