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Fan JH, Li XM. Mesangial cell-derived CircRNAs in chronic glomerulonephritis: RNA sequencing and bioinformatics analysis. Ren Fail 2024; 46:2371059. [PMID: 38946402 PMCID: PMC467094 DOI: 10.1080/0886022x.2024.2371059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 06/17/2024] [Indexed: 07/02/2024] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) have been shown to play critical roles in the initiation and progression of chronic glomerulonephritis (CGN), while their role from mesangial cells in contributing to the pathogenesis of CGN is rarely understood. Our study aims to explore the potential functions of mesangial cell-derived circRNAs using RNA sequencing (RNA-seq) and bioinformatics analysis. METHODS Mouse mesangial cells (MMCs) were stimulated by lipopolysaccharide (LPS) to establish an in vitro model of CGN. Pro-inflammatory cytokines and cell cycle stages were detected by Enzyme-linked immunosorbent assay (ELISA) and Flow Cytometry experiment, respectively. Subsequently, differentially expressed circRNAs (DE-circRNAs) were identified by RNA-seq. GEO microarrays were used to identify differentially expressed mRNAs (DE-mRNAs) between CGN and healthy populations. Weighted co-expression network analysis (WGCNA) was utilized to explore clinically significant modules of CGN. CircRNA-associated CeRNA networks were constructed by bioinformatics analysis. The hub mRNAs from CeRNA network were identified using LASSO algorithms. Furthermore, utilizing protein-protein interaction (PPI), gene ontology (GO), pathway enrichment (KEGG), and GSEA analyses to explore the potential biological function of target genes from CeRNA network. In addition, we investigated the relationships between immune cells and hub mRNAs from CeRNA network using CIBERSORT. RESULTS The expression of pro-inflammatory cytokines IL-1β, IL-6, and TNF-α was drastically increased in LPS-induced MMCs. The number of cells decreased significantly in the G1 phase but increased significantly in the S/G2 phase. A total of 6 DE-mRNAs were determined by RNA-seq, including 4 up-regulated circRNAs and 2 down-regulated circRNAs. WGCNA analysis identified 1747 DE-mRNAs of the turquoise module from CGN people in the GEO database. Then, the CeRNA networks, including 6 circRNAs, 38 miRNAs, and 80 mRNAs, were successfully constructed. The results of GO and KEGG analyses revealed that the target mRNAs were mainly enriched in immune, infection, and inflammation-related pathways. Furthermore, three hub mRNAs (BOC, MLST8, and HMGCS2) from the CeRNA network were screened using LASSO algorithms. GSEA analysis revealed that hub mRNAs were implicated in a great deal of immune system responses and inflammatory pathways, including IL-5 production, MAPK signaling pathway, and JAK-STAT signaling pathway. Moreover, according to an evaluation of immune infiltration, hub mRNAs have statistical correlations with neutrophils, plasma cells, monocytes, and follicular helper T cells. CONCLUSIONS Our findings provide fundamental and novel insights for further investigations into the role of mesangial cell-derived circRNAs in CGN pathogenesis.
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Affiliation(s)
- Ji Hui Fan
- Department of Nephrology, Huaibei People’s Hospital, Huaibei, China
| | - Xiao Min Li
- Department of Nephrology, Huaibei People’s Hospital, Huaibei, China
- Department of Traditional Chinese Medicine, Huaibei People’s Hospital, Huaibei, China
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2
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Fan Y, Pavani KC, Broeckx BJG, Smits K, Van Soom A, Peelman L. Circular RNAs from bovine blastocysts can interact with miRNAs/tsRNAs from embryonic extracellular vesicles and regulate hatching. Int J Biol Macromol 2024; 277:134018. [PMID: 39032885 DOI: 10.1016/j.ijbiomac.2024.134018] [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: 03/14/2024] [Revised: 07/05/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Circular RNAs (circRNAs) are endogenous biological macromolecules that regulate various biological processes including embryo development. However, little is known about which circRNAs are present in bovine preimplantation embryos and their respective roles. Here, we characterized the expression profile of circRNAs in bovine blastocysts for the first time. We detected 25,700 circRNAs in total, with 12,630 circRNAs uniquely expressed in blastocysts compared to degenerated embryos. CircRNA alternative splicing (AS) events were also found more frequently in blastocysts than in degenerated embryos (299 vs 258). Additionally, 410 circRNAs, among which 11 circRNAs with a high potential to encode polypeptides, were found differentially expressed between blastocysts and degenerated embryos. We further predicted and constructed a circRNA-miRNA-mRNA network, wherein differentially expressed circRNAs were shown to bind to bovine preimplantation embryo development-related miRNAs. Employing bioinformatic algorithms we found that differentially expressed circRNAs are associated with differentially expressed miRNAs and transfer RNA-derived small RNAs (tsRNAs) enclosed in embryonic extracellular vesicles (EVs). Furthermore, functional analysis revealed that knockdown of the evolutionarily conserved circAGO2 can inhibit blastocyst hatching. Overall, our study provides the first landscape of circRNAs in bovine preimplantation embryos and highlights the novel role of circRNAs as tsRNA binding partners influencing small RNA sorting and loading into EVs, with circAGO2 playing a regulatory role in bovine blastocyst hatching.
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Affiliation(s)
- Yuan Fan
- Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Heidestraat 19, 9820 Merelbeke, Belgium
| | - Krishna Chaitanya Pavani
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; Department for Reproductive Medicine, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Bart J G Broeckx
- Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Heidestraat 19, 9820 Merelbeke, Belgium
| | - Katrien Smits
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Ann Van Soom
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Luc Peelman
- Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Heidestraat 19, 9820 Merelbeke, Belgium.
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3
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Kundu I, Varshney S, Karnati S, Naidu S. The multifaceted roles of circular RNAs in cancer hallmarks: From mechanisms to clinical implications. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102286. [PMID: 39188305 PMCID: PMC11345389 DOI: 10.1016/j.omtn.2024.102286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Circular RNAs (circRNAs) represent a distinct class of covalently closed RNA species lacking conventional 5' to 3' polarity. Derived predominantly from pre-mRNA transcripts of protein-coding genes, circRNAs arise through back-splicing events of exon-exon or exon-intron junctions. They exhibit tissue- and cell-specific expression patterns and play crucial roles in regulating fundamental cellular processes such as cell cycle dynamics, proliferation, apoptosis, and differentiation. CircRNAs modulate gene expression through a plethora of mechanisms at epigenetic, transcriptional, and post-transcriptional levels, and some can even undergo translation into functional proteins. Recently, aberrant expression of circRNAs has emerged as a significant molecular aberration within the intricate regulatory networks governing hallmarks of cancer. The tumor-specific expression patterns and remarkable stability of circRNAs have profound implications for cancer diagnosis, prognosis, and therapy. This review comprehensively explores the multifaceted roles of circRNAs across cancer hallmarks in various tumor types, underscoring their growing significance in cancer diagnosis and therapeutic interventions. It also details strategies for leveraging circRNA-based therapies and discusses the challenges in using circRNAs for cancer management, emphasizing the need for further research to overcome these obstacles.
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Affiliation(s)
- Indira Kundu
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
| | - Shivani Varshney
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
| | - Srikanth Karnati
- Institute of Anatomy and Cell Biology, University of Würzburg, 97070 Würzburg, Germany
- Comprehensive Heart Failure Center, University Hospital Würzburg, Würzburg, Germany
| | - Srivatsava Naidu
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab, India
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4
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Zhang M, Du G, Xie L, Xu Y, Chen W. Circular RNA HMGCS1 sponges MIR4521 to aggravate type 2 diabetes-induced vascular endothelial dysfunction. eLife 2024; 13:RP97267. [PMID: 39235443 PMCID: PMC11377038 DOI: 10.7554/elife.97267] [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] [Indexed: 09/06/2024] Open
Abstract
Noncoding RNA plays a pivotal role as novel regulators of endothelial cell function. Type 2 diabetes, acknowledged as a primary contributor to cardiovascular diseases, plays a vital role in vascular endothelial cell dysfunction due to induced abnormalities of glucolipid metabolism and oxidative stress. In this study, aberrant expression levels of circHMGCS1 and MIR4521 were observed in diabetes-induced human umbilical vein endothelial cell dysfunction. Persistent inhibition of MIR4521 accelerated development and exacerbated vascular endothelial dysfunction in diabetic mice. Mechanistically, circHMGCS1 upregulated arginase 1 by sponging MIR4521, leading to decrease in vascular nitric oxide secretion and inhibition of endothelial nitric oxide synthase activity, and an increase in the expression of adhesion molecules and generation of cellular reactive oxygen species, reduced vasodilation and accelerated the impairment of vascular endothelial function. Collectively, these findings illuminate the physiological role and interacting mechanisms of circHMGCS1 and MIR4521 in diabetes-induced cardiovascular diseases, suggesting that modulating the expression of circHMGCS1 and MIR4521 could serve as a potential strategy to prevent diabetes-associated cardiovascular diseases. Furthermore, our findings provide a novel technical avenue for unraveling ncRNAs regulatory roles of ncRNAs in diabetes and its associated complications.
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MESH Headings
- Animals
- Humans
- Male
- Mice
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/metabolism
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/physiopathology
- Human Umbilical Vein Endothelial Cells/metabolism
- Mice, Inbred C57BL
- MicroRNAs/metabolism
- MicroRNAs/genetics
- RNA, Circular/genetics
- RNA, Circular/metabolism
- Hydroxymethylglutaryl-CoA Synthase/genetics
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Affiliation(s)
- Ming Zhang
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Guangyi Du
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Lianghua Xie
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yang Xu
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Wei Chen
- Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Ningbo Innovation Center, Zhejiang University, Ningbo, China
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5
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Qiu W, Zhang S, Yu W, Liu J, Wu H. Non-coding RNAs in hepatocellular carcinoma metastasis: Remarkable indicators and potential oncogenic mechanism. Comput Biol Med 2024; 180:108867. [PMID: 39089114 DOI: 10.1016/j.compbiomed.2024.108867] [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: 11/28/2023] [Revised: 06/12/2024] [Accepted: 07/07/2024] [Indexed: 08/03/2024]
Abstract
Non-coding RNAs (ncRNAs), as key regulators involving in intercellular biological processes, are more prominent in many malignancies, especially for hepatocellular carcinoma (HCC). Herein, we conduct a comprehensive review to summarize diverse ncRNAs roles in HCC metastatic mechanism. We focus on four signaling pathways that predominate in HCC metastatic process, including Wnt/β-catenin, HIF-1α, IL-6, and TGF-β pathways. MicroRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs) employed different mechanisms to participate in the regulation of the key genes in these pathways, typical as interaction with DNA to control transcription, with RNA to control translation, and with protein to control stability. Therefore, ncRNAs may become potential biomarkers and therapeutic targets for HCC metastasis.
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Affiliation(s)
- Wenqi Qiu
- Department of Plastic and Aesthetic Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Song Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jian Liu
- Department of Intensive Care Unit, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Huiling Wu
- Department of Plastic and Aesthetic Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
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6
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Hedayati N, Mafi A, Farahani A, Hashemi M, Nabavi N, Alimohammadi M, Rahimzadeh P, Taheriazam A, Farahani N. The importance of the circRNA/Wnt axis in gliomas: Biological functions and clinical opportunities. Pathol Res Pract 2024; 261:155510. [PMID: 39116573 DOI: 10.1016/j.prp.2024.155510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/24/2024] [Accepted: 07/29/2024] [Indexed: 08/10/2024]
Abstract
Gliomas are among the most common cancers in the central nervous system, arising through various signaling pathways. One significant pathway is Wnt signaling, a tightly regulated process that plays a crucial role in gliomagenesis and development. The current study aims to explore the relationship between circular RNAs (circRNAs) and the Wnt/β-catenin signaling pathway in gliomas, considering the growing recognition of circRNAs in disease pathogenesis. A comprehensive review of recent research was conducted to investigate the roles of circRNAs in gliomas, focusing on their expression patterns and interactions with the Wnt signaling pathway. The analysis included studies examining circRNAs' function as microRNA sponges and their impact on glioma biology. The findings reveal that circRNAs are differentially expressed in gliomas and significantly influence the occurrence, growth, and metastasis of these tumors. Specifically, circRNAs interact with the Wnt signaling pathway, affecting glioma development and progression. This interaction highlights the importance of circRNAs in glioma pathophysiology. Understanding the regulatory network involving circRNAs and Wnt signaling offers valuable insights into glioma pathophysiology. CircRNAs hold promise as diagnostic and prognostic biomarkers and may serve as targets for novel therapeutic strategies in glioma treatment.
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Affiliation(s)
- Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Alireza Mafi
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Aryan Farahani
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical sciences, Tehran, Iran
| | - Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Noushin Nabavi
- Independent Researcher, Victoria, British Columbia, Canada
| | - Mina Alimohammadi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Payman Rahimzadeh
- Surgical Research Society (SRS), Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Najma Farahani
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran.
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7
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Hsu CY, Faisal A, Jumaa SS, Gilmanova NS, Ubaid M, Athab AH, Mirzaei R, Karampoor S. Exploring the impact of circRNAs on cancer glycolysis: Insights into tumor progression and therapeutic strategies. Noncoding RNA Res 2024; 9:970-994. [PMID: 38770106 PMCID: PMC11103225 DOI: 10.1016/j.ncrna.2024.05.001] [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: 02/19/2024] [Revised: 04/18/2024] [Accepted: 05/04/2024] [Indexed: 05/22/2024] Open
Abstract
Cancer cells exhibit altered metabolic pathways, prominently featuring enhanced glycolytic activity to sustain their rapid growth and proliferation. Dysregulation of glycolysis is a well-established hallmark of cancer and contributes to tumor progression and resistance to therapy. Increased glycolysis supplies the energy necessary for increased proliferation and creates an acidic milieu, which in turn encourages tumor cells' infiltration, metastasis, and chemoresistance. Circular RNAs (circRNAs) have emerged as pivotal players in diverse biological processes, including cancer development and metabolic reprogramming. The interplay between circRNAs and glycolysis is explored, illuminating how circRNAs regulate key glycolysis-associated genes and enzymes, thereby influencing tumor metabolic profiles. In this overview, we highlight the mechanisms by which circRNAs regulate glycolytic enzymes and modulate glycolysis. In addition, we discuss the clinical implications of dysregulated circRNAs in cancer glycolysis, including their potential use as diagnostic and prognostic biomarkers. All in all, in this overview, we provide the most recent findings on how circRNAs operate at the molecular level to control glycolysis in various types of cancer, including hepatocellular carcinoma (HCC), prostate cancer (PCa), colorectal cancer (CRC), cervical cancer (CC), glioma, non-small cell lung cancer (NSCLC), breast cancer, and gastric cancer (GC). In conclusion, this review provides a comprehensive overview of the significance of circRNAs in cancer glycolysis, shedding light on their intricate roles in tumor development and presenting innovative therapeutic avenues.
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Affiliation(s)
- Chou-Yi Hsu
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan City, 71710, Taiwan
- Thunderbird School of Global Management, Arizona State University Tempe Campus, Phoenix, Arizona, 85004, USA
| | - Ahmed Faisal
- Department of Pharmacy, Al-Noor University College, Nineveh, Iraq
| | - Sally Salih Jumaa
- College of Pharmacy, National University of Science and Technology, Dhi Qar, Iraq
| | - Nataliya Sergeevna Gilmanova
- Department of Prosthetic Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Russia, Moscow
| | - Mohammed Ubaid
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| | - Aya H. Athab
- Department of Pharmacy, Al-Zahrawi University College, Karbala, Iraq
| | - Rasoul Mirzaei
- Venom & Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Sajad Karampoor
- Gastrointestinal & Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
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8
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Chen M, He H, Cheng H, Zhang G. EIF4A3-induced hsa_circ_0078136 inhibits the tumorigenesis of retinoblastoma via IL-17 signaling pathway. Int Ophthalmol 2024; 44:352. [PMID: 39180619 DOI: 10.1007/s10792-024-03276-6] [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: 04/24/2024] [Accepted: 08/17/2024] [Indexed: 08/26/2024]
Abstract
PURPOSE Retinoblastoma (RB) is one of the most common intraocular cancers, with the highest prevalence among infants and young children under the age five. Numerous findings across the literature illustrate the involvement and significance of circular RNAs (circRNAs) in human malignancies, including RB. The current investigation attempted to decipher the exact roles and underlying mechanisms of a novel circRNA, hsa_circ_0078136, in RB progression. METHODS The hsa_circ_0078136 expression was evaluated in RB tumors and cell lines via qRT-PCR. The significance of hsa_circ_0078136 in RB was examined by performing CCK8 assay, transwell assays, western blotting of apoptotic and IL-17 signaling ligand molecules, and a subcutaneous xenograft tumor model. In addition, the interaction of circRNA and eukaryotic translation initiation factor 4A3 (EIF4A3) was determined with bioinformatics, western blot, and RIP assay. RESULTS The hsa_circ_0078136 expression was reduced in RB tumor samples and cells. Additionally, its overexpression restricted the oncogenic properties of RB cells in vitro. Moreover, hsa_circ_0078136 overexpression lowered the protein levels of cytokine ligand molecules of IL-17 signaling pathway in RB cell lines. In vivo, hsa_circ_0078136 overexpression in subcutaneous tumor xenografts reduced tumor growth. We also observed that EIF4A3 binds to the downstream flanking sequence of hsa_circ_0078136 in the SHRPH pre-mRNA transcript, and EIF4A3 overexpression reduced hsa_circ_0078136 expression, suggesting that EIF4A3 inhibited hsa_circ_0078136 formation. CONCLUSIONS Our results demonstrate that hsa_circ_0078136 is regulated by EIF4A3 and functions as a tumor suppressor via the IL-17 signaling pathway in RB.
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Affiliation(s)
- Min Chen
- Department of Ophthalmology, Wuhan Asia General Hospital, Wuhan, 430000, Hubei, China
| | - Heng He
- Department of Ophthalmology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China
- Department of Ophthalmology, Affiliated Hospital of Hubei University of Traditional Chinese Medicine, Wuhan, 430061, Hubei, China
| | - Huili Cheng
- Department of Ophthalmology, Wuhan Asia General Hospital, Wuhan, 430000, Hubei, China
| | - Guanghong Zhang
- Department of Ophthalmology, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430074, Hubei, China.
- Department of Ophthalmology, Affiliated Hospital of Hubei University of Traditional Chinese Medicine, Wuhan, 430061, Hubei, China.
- Department of Ophthalmology, Hubei Province Academy of Traditional Chinese Medicine, No.856, Luoyu Road, Hongshan District, Wuhan, 430074, Hubei, China.
- Department of Ophthalmology, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, China.
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Chen F, Jiang R, Yu X. Circular RNA circ_0002984 Facilitates the Proliferation and Migration of Ox-LDL-Induced Vascular Smooth Muscle Cells via the Let-7a-5p/KLF5 Pathway. Cardiovasc Toxicol 2024:10.1007/s12012-024-09911-z. [PMID: 39181944 DOI: 10.1007/s12012-024-09911-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 08/06/2024] [Indexed: 08/27/2024]
Abstract
Circular RNAs (circRNAs) play an important role in the progression of atherosclerosis (AS). This study aimed to explore the exact role and mechanism of circ_0002984 in oxidized low-density lipoprotein (ox-LDL)-mediated human vascular smooth muscle cells (HVSMCs). The model of smooth muscle cell phenotype switching was constructed by treating HVSMCs with ox-LDL. The levels of circ_0002984, let-7a-5p, and kruppel-like factor 5 (KLF5) were measured by quantitative real-time PCR or western blot assay. Cell proliferation, migration, and apoptosis were detected by Cell Counting Kit-8 (CCK-8), EdU staining, wound healing assay, transwell assay, and flow cytometry. The expression of cleaved-caspase-3 and KLF5 was examined by western blot. The relationship between let-7a-5p and circ_0002984 or KLF5 was verified by dual-luciferase reporter assay or RIP assay. The results showed that circ_0002984 and KLF5 were up-regulated, while let-7a-5p was down-regulated in AS patients and ox-LDL-disposed HVSMCs. Silence of circ_0002984 suppressed proliferation and migration, and promoted apoptosis in ox-LDL-stimulated HVSMCs. Moreover, circ_0002984 sponged let-7a-5p to regulate the proliferation, migration, and apoptosis in ox-LDL-resulted HVSMCs. In addition, KLF5 was a target of let-7a-5p and its overexpression reversed the effect of let-7a-5p on the proliferation, migration, and apoptosis in ox-LDL-treated HVSMCs. Also, circ_0002984 positively regulated KLF5 expression by absorbing let-7a-5p. The promotion effect of circ_0002984 on the proliferation and migration of ox-LDL-treated HVSMCs was reversed by KLF5 silencing. Taken together, depletion of circ_0002984 inhibited the proliferation and migration of ox-LDL-stimulated HVSMCs, which might be achieved by modulating the let-7a-5p/KLF5 axis.
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Affiliation(s)
- Feng Chen
- Department of Cardiovascular Medicine, Lishui People's Hospital, Lishui, Zhejiang, China
| | - Ruilai Jiang
- Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Xiufeng Yu
- Department of Emergency Medicine, Lishui People's Hospital, No. 1188 Liyang Street, Yanquan Avenue, Liandu District, Lishui, 323050, Zhejiang, China.
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Chen YT, Tsai HJ, Kan CH, Ma CP, Chen HW, Chang IYF, Liu H, Wu CC, Chu WY, Wu YC, Chang KP, Yu JS, Tan BCM. Noncanonical formation of SNX5 gene-derived circular RNA regulates cancer growth. Cell Death Dis 2024; 15:599. [PMID: 39155279 PMCID: PMC11330969 DOI: 10.1038/s41419-024-06980-4] [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: 02/22/2024] [Revised: 08/04/2024] [Accepted: 08/06/2024] [Indexed: 08/20/2024]
Abstract
Oral squamous cell carcinoma (OSCC) is a prevalent cancer worldwide, exhibiting unique regional prevalence. Despite advancements in diagnostics and therapy, the 5-year survival rate for patients has seen limited improvement. A deeper understanding of OSCC pathogenesis, especially its molecular underpinnings, is essential for improving detection, prevention, and treatment. In this context, noncoding RNAs, such as circular RNAs (circRNAs), have gained recognition as crucial regulators and potential biomarkers in OSCC progression. Our study highlights the discovery of previously uncharacterized circRNAs, including a SNX5 gene-derived circRNA, circSNX5, through deep sequencing of OSCC patient tissue transcriptomes. We established circSNX5's tumor-specific expression and its strong correlation with patient survival using structure-specific and quantitative PCR analyses. In vitro and in vivo experiments underscored circSNX5 RNA's regulatory role in cancer growth and metastasis. Further, our omics profiling and functional assays revealed that ADAM10 is a critical effector in circSNX5-mediated cancer progression, with circSNX5 maintaining ADAM10 expression by sponging miR-323. This novel circRNA-miRNA-mRNA regulatory axis significantly contributes to oral cancer progression and malignancy. Moreover, we discovered that circSNX5 RNA is produced via noncanonical sequential back-splicing of pre-mRNA, a process negatively regulated by the RNA-binding protein STAU1. This finding adds a new dimension to our understanding of exonic circRNA biogenesis in the eukaryotic transcriptome. Collectively, our findings offer a detailed mechanistic dissection and functional interpretation of a novel circRNA, shedding light on the role of the noncoding transcriptome in cancer biology and potentially paving the way for innovative therapeutic strategies.
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Affiliation(s)
- Yi-Tung Chen
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, 333, Taiwan
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Hui-Ju Tsai
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Chia-Hua Kan
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Chung-Pei Ma
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Hui-Wen Chen
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Ian Yi-Feng Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, 333, Taiwan
- Department of Neurosurgery, Lin-Kou Medical Center, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
- Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Hsuan Liu
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, 333, Taiwan
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
- Department of Cell and Molecular Biology, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
- Division of Colon and Rectal Surgery, Lin-Kou Medical Center, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Chih-Ching Wu
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Wei-Yun Chu
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Ya-Chun Wu
- Asia American International Academy, New Taipei City, Taiwan
| | - Kai-Ping Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, 333, Taiwan
- Department of Otolaryngology-Head & Neck Surgery, Lin-Kou Medical Center, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Jau-Song Yu
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, 333, Taiwan
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
- Department of Cell and Molecular Biology, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan
| | - Bertrand Chin-Ming Tan
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
- Department of Neurosurgery, Lin-Kou Medical Center, Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan.
- Research Center for Emerging Viral Infections, Chang Gung University, Taoyuan, 333, Taiwan.
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11
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Lu ZJ, Pan QL, Lin FX. Epigenetic modifications of inflammation in spinal cord injury. Biomed Pharmacother 2024; 179:117306. [PMID: 39153436 DOI: 10.1016/j.biopha.2024.117306] [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: 05/19/2024] [Revised: 07/31/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024] Open
Abstract
Spinal cord injury (SCI) is a central nervous system injury that leads to neurological dysfunction or paralysis, which seriously affects patients' quality of life and causes a heavy social and economic burden. The pathological mechanism of SCI has not been fully revealed, resulting in unsatisfactory clinical treatment. Therefore, more research is urgently needed to reveal its precise pathological mechanism. Numerous studies have shown that inflammation is closely related to various pathological processes in SCI. Inflammatory response is an important pathological process leading to secondary injury, and sustained inflammatory response can exacerbate the injury and hinder the recovery of neurological function after injury. Epigenetic modification is considered to be an important regulatory mechanism in the pathological process of many diseases. Epigenetic modification mainly affects the function and characteristics of genes through the reversibility of mechanisms such as DNA methylation, histone modification, and regulation of non-coding RNA, thus having a significant impact on the pathological process of diseases and the survival state of the body. Recently, the role of epigenetic modification in the inflammatory response of SCI has gradually entered the field of view of researchers, and epigenetic modification may be a potential means to treat SCI. In this paper, we review the effects and mechanisms of different types of epigenetic modifications (including histone modifications, DNA methylation, and non-coding RNAs) on post-SCI inflammation and their potential therapeutic effects on inflammation to improve our understanding of the secondary SCI stage. This review aims to help identify new markers, signaling pathways and targeted drugs, and provide theoretical basis and new strategies for the diagnosis and treatment of SCI.
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Affiliation(s)
- Zhi-Jun Lu
- Department of Spine Surgery, Ganzhou People's Hospital, 16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), 16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China.
| | - Qi-Lin Pan
- Department of Spine Surgery, Ganzhou People's Hospital, 16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), 16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China
| | - Fei-Xiang Lin
- Department of Spine Surgery, Ganzhou People's Hospital, 16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China; Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), 16 Meiguan Avenue, Ganzhou, Jiangxi Province 341000, PR China.
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12
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Agrawal A, Vindal V. Competing endogenous RNAs in head and neck squamous cell carcinoma: a review. Brief Funct Genomics 2024; 23:335-348. [PMID: 37941447 DOI: 10.1093/bfgp/elad049] [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: 07/25/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/10/2023] Open
Abstract
Our understanding of RNA biology has evolved with recent advances in research from it being a non-functional product to molecules of the genome with specific regulatory functions. Competitive endogenous RNA (ceRNA), which has gained prominence over time as an essential part of post-transcriptional regulatory mechanism, is one such example. The ceRNA biology hypothesis states that coding RNA and non-coding RNA co-regulate each other using microRNA (miRNA) response elements. The ceRNA components include long non-coding RNAs, pseudogene and circular RNAs that exert their effect by interacting with miRNA and regulate the expression level of its target genes. Emerging evidence has revealed that the dysregulation of the ceRNA network is attributed to the pathogenesis of various cancers, including the head and neck squamous cell carcinoma (HNSCC). This is the most prevalent cancer developed from the mucosal epithelium in the lip, oral cavity, larynx and pharynx. Although many efforts have been made to comprehend the cause and subsequent treatment of HNSCC, the morbidity and mortality rate remains high. Hence, there is an urgent need to understand the holistic progression of HNSCC, mediated by ceRNA, that can have immense relevance in identifying novel biomarkers with a defined therapeutic intervention. In this review, we have made an effort to highlight the ceRNA biology hypothesis with a focus on its involvement in the progression of HNSCC. For the identification of such ceRNAs, we have additionally highlighted a number of databases and tools.
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Affiliation(s)
- Avantika Agrawal
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Vaibhav Vindal
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana 500046, India
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13
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Ma Q, Hao S, Hong W, Tergaonkar V, Sethi G, Tian Y, Duan C. Versatile function of NF-ĸB in inflammation and cancer. Exp Hematol Oncol 2024; 13:68. [PMID: 39014491 PMCID: PMC11251119 DOI: 10.1186/s40164-024-00529-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: 11/20/2023] [Accepted: 06/06/2024] [Indexed: 07/18/2024] Open
Abstract
Nuclear factor-kappaB (NF-ĸB) plays a crucial role in both innate and adaptive immune systems, significantly influencing various physiological processes such as cell proliferation, migration, differentiation, survival, and stemness. The function of NF-ĸB in cancer progression and response to chemotherapy has gained increasing attention. This review highlights the role of NF-ĸB in inflammation control, biological mechanisms, and therapeutic implications in cancer treatment. NF-ĸB is instrumental in altering the release of inflammatory factors such as TNF-α, IL-6, and IL-1β, which are key in the regulation of carcinogenesis. Specifically, in conditions including colitis, NF-ĸB upregulation can intensify inflammation, potentially leading to the development of colorectal cancer. Its pivotal role extends to regulating the tumor microenvironment, impacting components such as macrophages, fibroblasts, T cells, and natural killer cells. This regulation influences tumorigenesis and can dampen anti-tumor immune responses. Additionally, NF-ĸB modulates cell death mechanisms, notably by inhibiting apoptosis and ferroptosis. It also has a dual role in stimulating or suppressing autophagy in various cancers. Beyond these functions, NF-ĸB plays a role in controlling cancer stem cells, fostering angiogenesis, increasing metastatic potential through EMT induction, and reducing tumor cell sensitivity to chemotherapy and radiotherapy. Given its oncogenic capabilities, research has focused on natural products and small molecule compounds that can suppress NF-ĸB, offering promising avenues for cancer therapy.
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Affiliation(s)
- Qiang Ma
- Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230022, P.R. China
| | - Shuai Hao
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210002, P.R. China
| | - Weilong Hong
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Vinay Tergaonkar
- Laboratory of NF-κB Signalling, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Gautam Sethi
- Department of Pharmacology and NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore.
| | - Yu Tian
- School of Public Health, Benedictine University, Lisle, 60532, USA.
| | - Chenyang Duan
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China.
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14
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Fu Y, Chen B, Gao T, Wang Z. CircSLC25A16 facilitates the development of non-small-cell lung cancer through the miR-335-5p/CISD2 axis. Thorac Cancer 2024; 15:1490-1501. [PMID: 38803052 PMCID: PMC11219286 DOI: 10.1111/1759-7714.15163] [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: 09/04/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Non-small-cell lung cancer (NSCLC) is a common malignancy with high morbidity and mortality. Circular RNAs are widely involved in NSCLC progression. However, the mechanism of circSLC25A16 in NSCLC has not been reported. METHODS The expressions of circSLC25A16, microRNA-335-5p (miR-335-5p), and CDGSH iron-sulfur domain-containing protein 2 (CISD2) were monitored by quantitative real-time fluorescence polymerase chain reaction. Western blot was also carried out to measure the protein levels of CISD2, hexokinase 2 (HK2), and lactate dehydrogenase A (LDHA). For functional analysis, cell counting kit-8 assay, 5-ethynyl-2'-deoxyuridine, flow cytometry, transwell, and wound healing assays were utilized to examine cell proliferation, apoptosis, and migration. Glucose uptake and lactate production were detected using commercial kits. The relationship between miR-335-5p and circSLC25A16 or CISD2 was verified by dual-luciferase reporter and RNA immunoprecipitation assays. Furthermore, tumor xenograft was established to explore the function of circSLC25A16 in vivo. RESULTS CircSLC25A16 and CISD2 were overexpressed in NSCLC, but miR-335-5p was downregulated. CircSLC25A16 acted as a miR-335-5p sponge, and silencing of circSLC25A16 arrested cell proliferation, migration, and glycolysis, and promoted apoptosis, but these impacts were resumed by miR-335-5p inhibition. CISD2 was a miR-335-5p target, and overexpression of CISD2 abolished the suppressive function of miR-335-5p mimic on the malignant behavior of NSCLC cells. CircSLC25A16 could adsorb miR-335-5p to mediate CISD2 expression. Additionally, silencing circSLC25A16 restrained the growth of NSCLC tumor xenograft in vivo. CONCLUSION CircSLC25A16 facilitated NSCLC progression via the miR-335-5p/CISD2 axis, implying that circSLC25A16 may serve as a novel biomarker for NSCLC treatment.
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Affiliation(s)
- Yu Fu
- Department of Respiratory MedicineYiwu Fuyuan Private HospitalYiwu CityChina
| | - Bin Chen
- Department of PharmacyYiwu Fuyuan Private HospitalYiwu CityChina
| | - Tao Gao
- Department of Respiratory MedicineYiwu Fuyuan Private HospitalYiwu CityChina
| | - Zhenglong Wang
- Department of Respiratory MedicineYiwu Fuyuan Private HospitalYiwu CityChina
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15
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Li F, Fu H, Zeng L, Liu P. CIRCVMA21-RELATED PATHWAY ALLEVIATES LIPOPOLYSACCHARIDE-INDUCED HK-2 CELL INJURY. Shock 2024; 62:119-126. [PMID: 38662613 DOI: 10.1097/shk.0000000000002364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
ABSTRACT Background : It is reported that circVMA21 has an inhibition effect on sepsis-induced acute kidney injury (AKI). Therefore, the underlying molecular mechanisms of circVMA21 in AKI are worthy of further investigation. Material and Methods : Lipopolysaccharide (LPS) was used to induce HK2 cell injury. CircVMA21, miR-337-3p and ZEB2 expression was tested by qRT-PCR. Cell growth was detected by CCK8 assay, EdU assay, and flow cytometry. Protein levels were examined by western blot. The levels of inflammatory factors and oxidative stress markers were measured to evaluate cell inflammatory response and oxidative stress. RNA relationship as verified by dual-luciferase reporter assay, RIP assay, and RNA pull-down assay. Results : CircVMA21 had decreased expression in AKI patients. Overexpressed circVMA21 alleviated LPS-induced HK2 cell inflammation, apoptosis, and oxidative stress. Moreover, circVMA21 sponged miR-337-3p, and miR-337-3p targeted ZEB2. The inhibitory effect of circVMA21 on LPS-induced HK2 cell injury was reversed by miR-337-3p overexpression, and ZEB2 overexpression abolished the promotion effect of miR-337-3p on LPS-induced HK2 cell injury. Conclusions : CircVMA21 could inhibit LPS-induced HK2 cell injury via miR-337-3p/ZEB2 axis.
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Affiliation(s)
- Fuzhu Li
- The First Affiliated Hospital, Department of Neurosurgical Intensive Care Unit, Hengyang Medical School, University of South China, Hengyang, China
| | - Hongyun Fu
- The First Affiliated Hospital, Department of Docimasiology, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Linna Zeng
- Department of Endocrinology, The Third People's Hospital of Yongzhou City, Yongzhou City, China
| | - Pingping Liu
- The First Affiliated Hospital, Department of Emergency, Hengyang Medical School, University of South China, Hengyang, China
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16
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Wen K, Chen X, Gu J, Chen Z, Wang Z. Beyond traditional translation: ncRNA derived peptides as modulators of tumor behaviors. J Biomed Sci 2024; 31:63. [PMID: 38877495 PMCID: PMC11177406 DOI: 10.1186/s12929-024-01047-0] [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: 11/29/2023] [Accepted: 05/24/2024] [Indexed: 06/16/2024] Open
Abstract
Within the intricate tapestry of molecular research, noncoding RNAs (ncRNAs) were historically overshadowed by a pervasive presumption of their inability to encode proteins or peptides. However, groundbreaking revelations have challenged this notion, unveiling select ncRNAs that surprisingly encode peptides specifically those nearing a succinct 100 amino acids. At the forefront of this epiphany stand lncRNAs and circRNAs, distinctively characterized by their embedded small open reading frames (sORFs). Increasing evidence has revealed different functions and mechanisms of peptides/proteins encoded by ncRNAs in cancer, including promotion or inhibition of cancer cell proliferation, cellular metabolism (glucose metabolism and lipid metabolism), and promotion or concerted metastasis of cancer cells. The discoveries not only accentuate the depth of ncRNA functionality but also open novel avenues for oncological research and therapeutic innovations. The main difficulties in the study of these ncRNA-derived peptides hinge crucially on precise peptide detection and sORFs identification. Here, we illuminate cutting-edge methodologies, essential instrumentation, and dedicated databases tailored for unearthing sORFs and peptides. In addition, we also conclude the potential of clinical applications in cancer therapy.
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Affiliation(s)
- Kang Wen
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210011, P.R. China
| | - Xin Chen
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210011, P.R. China
| | - Jingyao Gu
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210011, P.R. China
| | - Zhenyao Chen
- Department of Respiratory Endoscopy, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, P.R. China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Zhaoxia Wang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210011, P.R. China.
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Ma Q, Yu W, Li Z, Zhang X, Zhang L. Circ_0081723 enhances cervical cancer progression and modulates CREBRF via sponging miR-545-3p. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03175-8. [PMID: 38850307 DOI: 10.1007/s00210-024-03175-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 05/21/2024] [Indexed: 06/10/2024]
Abstract
Circular RNAs (circRNAs) have been confirmed to be an important modulator and therapeutic target of cervical cancer (CC). The aim of this study is to explore the role and mechanism of circ_0081723 in CC progression. Circ_0081723, microRNA-545-3p (miR-545-3p), and CREB3 regulatory factor (CREBRF) levels were detected using quantitative real-time PCR (qRT-PCR) assay. CREBRF, ki-67, Bcl-2 related X protein (Bax), and E-cadherin expression levels were determined using western blot (WB) and immunohistochemistry (IHC) assays. Cell proliferation was assessed using Cell Counting Kit-8 (CCK-8), cell colony formation, and 5-ethynyl-2'-deoxyuridine (EdU) assays. Flow cytometry was used to measure cell apoptosis. Cell migration and invasion were examined using Transwell assay. Interaction between miR-545-3p and circ_0081723 or CREBRF was verified using dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assays. The biological role of circ_0081723 on CC growth was examined using the xenograft tumor model in vivo. Circ_0081723 and CREBRF were increased, and miR-545-3p was decreased in CC tissues and cells. Circ_0081723 silencing suppressed CC cell growth and motility whereas boosted CC cell apoptosis. Besides, circ_0081723 acted as a molecular sponge for miR-545-3p, and circ_0081723 knockdown-induced effects were largely reversed by miR-545-3p downregulation in CC cells. Moreover, miR-545-3p repressed CC progression by targeting CREBRF. Circ_0081723 absence blocked xenograft tumor growth in vivo. Circ_0081723 stimulated CC cell malignant behaviors by regulating the miR-545-3p/CREBRF pathway, providing a possible circRNA-targeted therapy for CC.
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Affiliation(s)
- Qiongyan Ma
- Department of Gynaecology and Obstetrics, Gongli Hospital of Shanghai Pudong New Area, Shanghai, China
| | - Weiwei Yu
- Department of Radiation Oncology, Affiliated Hospital of Nantong University, Nantong, China
| | - Zhaobin Li
- Department of Radiation Oncology, Shanghai Sixth People's Hospital, Shanghai Jiaotong University School of Medicine, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Xiulong Zhang
- Department of Radiation Oncology, Shanghai Sixth People's Hospital, Shanghai Jiaotong University School of Medicine, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China
| | - Lihua Zhang
- Department of Radiation Oncology, Shanghai Sixth People's Hospital, Shanghai Jiaotong University School of Medicine, No. 600, Yishan Road, Xuhui District, Shanghai, 200233, China.
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Hao C, Han J, Xiang K, Wang Y, Chen X, Yang C, Liang A, Jia L. CircVIRMA enhances cell malignant behavior by governing the miR-452-5p/CREBRF pathway in cervical cancer. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03159-8. [PMID: 38850300 DOI: 10.1007/s00210-024-03159-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 05/10/2024] [Indexed: 06/10/2024]
Abstract
Our current study aimed to investigate the role and mechanism of circVIRMA in cervical cancer (CC) progression. CircVIRMA, microRNA-452-5p (miR-452-5p) and CREB3 regulatory factor (CREBRF) mRNA levels were examined in CC via quantitative real-time PCR (qRT-PCR). The protein level of CREBRF in CC was checked by Western blot. Cell Counting Kit-8 (CCK-8), colony formation, 5-Ethynyl-2'-deoxyuridine (EdU) staining, cell cycle, flow cytometry and transwell assays were conducted to estimate the effects of circVIRMA on malignant phenotypes of CC tumors. Western blot was used to measure related marker protein levels. The interaction between miR-452-5p and circVIRMA or CREBRF was predicted by bioinformatics analysis and verified by dual-luciferase reporter and RNA Immunoprecipitation (RIP) assays. Xenograft assay was used to assess the effect of circVIRMA on tumor growth in vivo. Immunohistochemistry (IHC) assay was performed to detect Ki-67 expression in tissues of mice. CircVIRMA and CREBRF levels were upregulated, while miR-452-5p was downregulated in CC tissues and cells. CircVIRMA silencing restrained CC cell proliferation, migration and invasion whereas induced apoptosis in vitro. In addition circVIRMA knockdown markedly attenuated xenograft tumor growth in vivo. circVIRMA was an efficient molecular sponge for miR-452-5p, and negatively regulated miR-452-5p expression. circVIRMA regulated CREBRF expression to modulate CC progression via miR-452-5p. MiR-452-5p downregulation reversed the effects of circVIRMA knockdown on CC progression. MiR-452-5p directly targeted CREBRF, and CREBRF overexpression partly restored the impact of miR-452-5p mimics on CC progression. circVIRMA mediated CC progression via regulating miR-452-5p/CREBRF axis, providing a novel therapeutic target for CC treatment.
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Affiliation(s)
- Chengluo Hao
- Department of Hematology and Oncology, Third People's Hospital of Zigong, Zigong, Sichuan, China
| | - Jianjun Han
- Department of Oncology, The Third Hospital of Mianyang (Sichuan Mental Health Center), No. 192, East Section of Jiannan Road, Youxian District, Mianyang, Sichuan, China
| | - Kechao Xiang
- Department of Oncology, The Third Hospital of Mianyang (Sichuan Mental Health Center), No. 192, East Section of Jiannan Road, Youxian District, Mianyang, Sichuan, China
| | - Yun Wang
- Department of Oncology, The Third Hospital of Mianyang (Sichuan Mental Health Center), No. 192, East Section of Jiannan Road, Youxian District, Mianyang, Sichuan, China
| | - Xiangrui Chen
- Department of Hematology and Oncology, Third People's Hospital of Zigong, Zigong, Sichuan, China
| | - Chen Yang
- Department of Hematology and Oncology, Third People's Hospital of Zigong, Zigong, Sichuan, China
| | - Ailin Liang
- Department of Obstetrics and Gynecology, Chengdu BOE Hospital, Chengdu, Sichuan, China
| | - Li Jia
- Department of Oncology, The Third Hospital of Mianyang (Sichuan Mental Health Center), No. 192, East Section of Jiannan Road, Youxian District, Mianyang, Sichuan, China.
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19
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Chen X, Zou B, Yang Z. CircACTR2 attenuated the effects of tetramethylpyrazine on human kidney cell injury. J Bioenerg Biomembr 2024; 56:273-284. [PMID: 38427129 DOI: 10.1007/s10863-024-10001-6] [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: 08/03/2023] [Accepted: 01/05/2024] [Indexed: 03/02/2024]
Abstract
Tetramethylpyrazine (TMP) is one of the active ingredients of Chuan Xiong that has been reported to have effects on numerous diseases, including diabetic nephropathy (DN). Whereas, related molecular mechanisms are not fully elucidated. We aimed to explore circACTR2's role in TMP-mediated protective effects on DN. In vitro DN condition was established in human kidney cells (HK-2) by treating high glucose (HG). CCK-8 assay and flow cytometry assay were used to observe cell viability and survival. Oxidative stress was determined by the associated markers using kits. The release of inflammatory factors was detected using ELISA kits. Quantitative real-time PCR (qPCR) and western blot were utilized for expression analysis of cricACTR2, miR-140-5p, and GLI pathogenesis-related 2 (GLIPR2). The binding between miR-140-5p and circACTR2 or GLIPR2 was confirmed by dual-luciferase, RIP, and pull-down studies. HG largely induced HK-2 cell apoptosis, oxidative stress, and inflammation, which were alleviated by TMP. CircACTR2's expression was enhanced in HG-treated HK-2 cells but attenuated in HG + TMP-treated HK-2 cells. CircACTR2 overexpression attenuated the functional effects of TMP and thus restored HG-induced cell apoptosis, oxidative stress, and inflammation. CircACTR2 bound to miR-140-5p to enhance the expression of GLIPR2. MiR-140-5p restoration or GLIPR2 inhibition reversed the role of circACTR2 overexpression. CircACTR2 attenuated the protective effects of TMP on HG-induced HK-2 cell damages by regulating the miR-140-5p/GLIPR2 network, indicating that circACTR2 was involved in the functional network of TMP in DN.
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Affiliation(s)
- Xiuzhi Chen
- Department of endocrinology, Taihe Hospital of traditional Chinese Medicine, No. 59 Tuanjie West Road, Taihe County, Fuyang, 236600, Anhui, China.
| | - Bin Zou
- Department of endocrinology, Taihe Hospital of traditional Chinese Medicine, No. 59 Tuanjie West Road, Taihe County, Fuyang, 236600, Anhui, China
| | - Zhen Yang
- Department of endocrinology, Taihe Hospital of traditional Chinese Medicine, No. 59 Tuanjie West Road, Taihe County, Fuyang, 236600, Anhui, China
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20
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Li KZ, Liao XM, Li SQ, Wei HT, Liang ZJ, Ge LX, Zhou SF, Hu BL. Identification and diagnostic potential of hsa_circ_101303 in colorectal cancer: unraveling a regulatory network. BMC Cancer 2024; 24:671. [PMID: 38824581 PMCID: PMC11144310 DOI: 10.1186/s12885-024-12458-5] [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: 09/18/2023] [Accepted: 05/31/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND The role of novel circular RNAs (circRNAs) in colorectal cancer (CRC) remains to be determined. This study aimed to identify a novel circRNA involved in CRC pathogenesis, assess its diagnostic value, and construct a regulatory network. METHODS Differential expression analysis was conducted using circRNA datasets to screen for differentially expressed circRNAs. The expression of selected circRNAs was validated in external datasets and clinical samples. Diagnostic value of plasma circRNA levels in CRC was assessed. A competing endogenous RNA (ceRNA) network was constructed for the circRNA using TCGA dataset. RESULTS Analysis of datasets revealed that hsa_circ_101303 was significantly overexpressed in CRC tissues compared to normal tissues. The upregulation of hsa_circ_101303 in CRC tissues was further confirmed through the GSE138589 dataset and clinical samples. High expression of hsa_circ_101303 was associated with advanced N stage, M stage, and tumor stage in CRC. Plasma levels of hsa_circ_101303 were markedly elevated in CRC patients and exhibited moderate diagnostic ability for CRC (AUC = 0.738). The host gene of hsa_circ_101303 was also found to be related to the TNM stage of CRC. Nine miRNAs were identified as target miRNAs for hsa_circ_101303, and 27 genes were identified as targets of these miRNAs. Subsequently, a ceRNA network for hsa_circ_101303 was constructed to illustrate the interactions between the nine miRNAs and 27 genes. CONCLUSIONS The study identifies hsa_circ_101303 as a highly expressed circRNA in CRC, which is associated with the progression of the disease. Plasma levels of hsa_circ_101303 show promising diagnostic potential for CRC. The ceRNA network for hsa_circ_101303 provides valuable insights into the regulatory mechanisms underlying CRC.
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Affiliation(s)
- Ke-Zhi Li
- Department of Research, Guangxi Medical University Cancer Hospital, No. 71 Hedi Road, Nanning, 530021, China
| | - Xiao-Min Liao
- Department of Research, Guangxi Medical University Cancer Hospital, No. 71 Hedi Road, Nanning, 530021, China
| | - Si-Qi Li
- Department of Research, Guangxi Medical University Cancer Hospital, No. 71 Hedi Road, Nanning, 530021, China
| | - Hao-Tang Wei
- Department of Gastrointestinal Surgery, Third Affiliated Hospital of Guangxi Medical University, Nanning, 530031, China
| | - Zhi-Jian Liang
- Department of Research, Guangxi Medical University Cancer Hospital, No. 71 Hedi Road, Nanning, 530021, China
| | - Liu-Xin Ge
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, No. 22 Shuangyong Road, Nanning, 530021, China
| | - Su-Fang Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Guangxi Medical University, No. 22 Shuangyong Road, Nanning, 530021, China.
- Key Laboratory of the Ministry of Education Project for Early Prevention and Treatment of Regional High-Risk Tumors & Key Laboratory of Biological Molecular Medicine Research, Guangxi Medical University, Nanning, 530021, China.
| | - Bang-Li Hu
- Department of Research, Guangxi Medical University Cancer Hospital, No. 71 Hedi Road, Nanning, 530021, China.
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Li S, Wang J, Ren G. CircRNA: An emerging star in plant research: A review. Int J Biol Macromol 2024; 272:132800. [PMID: 38825271 DOI: 10.1016/j.ijbiomac.2024.132800] [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: 02/23/2024] [Revised: 05/27/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
CircRNAs are a class of covalently closed non-coding RNA formed by linking the 5' terminus and the 3' terminus after reverse splicing. CircRNAs are widely found in eukaryotes, and they are highly conserved, with spatio-temporal expression specificity and stability. CircRNAs can act as miRNA sponges to regulate the expression of downstream target genes, regulating the transcription of parental genes and some can even be translated into peptides or proteins. Research on circRNAs in plants is still in its infancy compared to that in animals. With the deepening of research, the results of a variety of plant circRNAs suggest that they play an important role in growth and development, and tolerance towards abiotic stresses such as salt, drought, low temperature, high temperature and other adverse environments. In this review paper, we elaborated the molecular characteristics, mechanism of action, function and bioinformatics databases of plant circRNAs, combined with the progress of circRNA research in animals, discussed the potential mechanism of action of plant circRNAs, and proposed the unsolved problems and prospects for future application of plant circRNAs.
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Affiliation(s)
- Simin Li
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Jingyi Wang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Guocheng Ren
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250014, China; Dongying Institute, Shandong Normal University, Dongying 257000, China.
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22
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Fang X, Tang C, Zeng D, Shan Y, Liu Q, Yin X, Li Y. CircInpp5b Ameliorates Renal Interstitial Fibrosis by Promoting the Lysosomal Degradation of DDX1. Biomolecules 2024; 14:613. [PMID: 38927017 PMCID: PMC11201918 DOI: 10.3390/biom14060613] [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: 03/23/2024] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024] Open
Abstract
Renal interstitial fibrosis (RIF) is a classic pathophysiological process of chronic kidney disease (CKD). However, the mechanisms underlying RIF remain unclear. The present study found that a novel circular RNA, cirInpp5b, might be involved in RIF by high-throughput sequencing. Subsequent experiments revealed that circInpp5b was reduced in UUO mouse kidney tissues and TGF-β1-treated proximal tubular cells. The overexpression of circInpp5b inhibited RIF in UUO mice and prevented extracellular matrix (ECM) deposition in TGF-β1-treated proximal tubular cells. Furthermore, overexpression of circInpp5b down-regulated the protein level of DDX1. Mechanistically, circInpp5b bound to the DDX1 protein and promoted its lysosomal degradation. Collectively, the findings of our study demonstrate that circInpp5b ameliorates RIF by binding to the DDX1 protein and promoting its lysosomal degradation.
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Affiliation(s)
- Xi Fang
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Chengyuan Tang
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Dong Zeng
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Yi Shan
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Qianfang Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Xuemin Yin
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
| | - Ying Li
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China; (X.F.); (C.T.); (D.Z.); (Y.S.); (Q.L.); (X.Y.)
- Key Laboratory of Kidney Disease and Blood Purification in Hunan Province, Changsha 410011, China
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23
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Ran XM, Yang J, Wang ZY, Xiao LZ, Deng YP, Zhang KQ. M2 macrophage-derived exosomal circTMCO3 acts through miR-515-5p and ITGA8 to enhance malignancy in ovarian cancer. Commun Biol 2024; 7:583. [PMID: 38755265 PMCID: PMC11098810 DOI: 10.1038/s42003-024-06095-8] [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: 08/10/2023] [Accepted: 03/22/2024] [Indexed: 05/18/2024] Open
Abstract
Tumor-associated macrophages of the M2 phenotype promote cancer initiation and progression. Importantly, M2 macrophage-derived exosomes play key roles in the malignancy of cancer cells. Here, we report that circTMCO3 is upregulated in ovarian cancer patients, and its high expression indicates poor survival. M2-derived exosomes promote proliferation, migration, and invasion in ovarian cancer, but these effects are abolished by knockdown of circTMCO3. Furthermore, circTMCO3 functions as a competing endogenous RNA for miR-515-5p to reduce its abundance, thus upregulating ITGA8 in ovarian cancer. miR-515-5p inhibits ovarian cancer malignancy via directly downregulating ITGA8. The decreased oncogenic activity of circTMCO3-silencing exosomes is reversed by miR-515-5p knockdown or ITGA8 overexpression. Exosomal circTMCO3 promotes ovarian cancer progression in nude mice. Thus, M2 macrophage-derived exosomes promote malignancy by delivering circTMCO3 and targeting the miR-515-5p/ITGA8 axis in ovarian cancer. Our findings not only provide mechanistic insights into ovarian cancer progression, but also suggest potential therapeutic targets.
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Affiliation(s)
- Xiao-Min Ran
- Department of Gynecologic Oncology Ward 5, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Juan Yang
- Department of Gynecologic Oncology Ward 5, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Zi-Yi Wang
- Department of Gynecologic Oncology Ward 5, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Ling-Zhi Xiao
- Department of Gynecologic Oncology Ward 5, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Yu-Ping Deng
- Department of Gynecologic Oncology Ward 5, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan Province, PR China
| | - Ke-Qiang Zhang
- Department of Gynecologic Oncology Ward 5, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan Province, PR China.
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24
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Hashemi M, Daneii P, Asadalizadeh M, Tabari K, Matinahmadi A, Bidoki SS, Motlagh YSM, Jafari AM, Ghorbani A, Dehghanpour A, Nabavi N, Tan SC, Rashidi M, Taheriazam A, Entezari M, Goharrizi MASB. Epigenetic regulation of hepatocellular carcinoma progression: MicroRNAs as therapeutic, diagnostic and prognostic factors. Int J Biochem Cell Biol 2024; 170:106566. [PMID: 38513802 DOI: 10.1016/j.biocel.2024.106566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 01/28/2024] [Accepted: 03/19/2024] [Indexed: 03/23/2024]
Abstract
Hepatocellular carcinoma (HCC), a significant challenge for public healthcare systems in developed Western countries including the USA, Canada, and the UK, is influenced by different risk factors including hepatitis virus infections, alcoholism, and smoking. The disruption in the balance of microRNAs (miRNAs) plays a vital function in tumorigenesis, given their function as regulators in numerous signaling networks. These miRNAs, which are mature and active in the cytoplasm, work by reducing the expression of target genes through their impact on mRNAs. MiRNAs are particularly significant in HCC as they regulate key aspects of the tumor, like proliferation and invasion. Additionally, during treatment phases such as chemotherapy and radiotherapy, the levels of miRNAs are key determinants. Pre-clinical experiments have demonstrated that altered miRNA expression contributes to HCC development, metastasis, drug resistance, and radio-resistance, highlighting related molecular pathways and processes like MMPs, EMT, apoptosis, and autophagy. Furthermore, the regulatory role of miRNAs in HCC extends beyond their immediate function, as they are also influenced by other epigenetic factors like lncRNAs and circular RNAs (circRNAs), as discussed in recent reviews. Applying these discoveries in predicting the prognosis of HCC could mark a significant advancement in the therapy of this disease.
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Affiliation(s)
- Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Pouria Daneii
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahya Asadalizadeh
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Kiana Tabari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Arash Matinahmadi
- Department of Cellular and Molecular Biology, Nicolaus Copernicus University, Torun, Poland
| | - Seyed Shahabadin Bidoki
- Faculty of medicine, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | - Ali Moghadas Jafari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Amin Ghorbani
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Amir Dehghanpour
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6, Vancouver, BC, Canada
| | - Shing Cheng Tan
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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25
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Chen Y, Chen L, Wu J, Su D. Hsa_circ_0087862 contributes to the progression of colorectal cancer through regulating miR-512-3p/HK2 axis. Pathol Res Pract 2024; 257:155281. [PMID: 38669868 DOI: 10.1016/j.prp.2024.155281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 03/15/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Colorectal cancer (CRC) theratened thousands of people every year. Emerging evidences suggested that circular RNAs (circRNAs) were involved in CRC malignancies. However, the underlying mechanisms have yet not been revealed. METHODS Quantitative real-time PCR (qRT-PCR) was used to determine the expression of circ_0087862 and microRNA-512-3p (miR-512-3p). Western blot was performed to measure the protein expression of hexokinase 2 (HK2), B-cell lymphoma-2 (Bcl-2), BCL2-associated X (Bax) and BCL2 antagonist/killer 1 (Bak). Moreover, 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT) assay, colony formation and 5-ethynyl-2'-deoxyuridine (EdU) assay were employed to assess CRC cell proliferation. Also, migration/invasion abilities and apoptosis rates were investigated by transwell assay and flow cytometry. Glucose consumption, lactate production and ATP production were detected using the corresponding kits. Dual-luciferase reporter analysis and RNA immunoprecipitation (RIP) experiments were utilized to analyze the target association of miR-512-3p and circ_0087862 or HK2. Finally, xenograft assay was carried out to analyze the function of circ_0087862 in tumor growth in vivo. RESULTS Circ_0087862 expression was elevated in CRC tissues and cells. Circ_0087862 silencing repressed cell viabilities, proliferation, migration/invasion and glycolysis, and reinforced cell apoptosis. However, HK2 could weaken these impacts. Additionally, miR-512-3p targeted HK2, and circ_0087862 could regulate HK2 expression by miR-512-3p. Furthermore, circ_0087862 silencing decreased CRC cell xenograft tumor growth. CONCLUSION Collectively, our data suggested that circ_0087862 knockdown impeded cell viabilities, proliferation, and glycolysis, and contributed to cell apoptosis in CRC, indicating circ_0087862 as a promising tumor promoter.
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Affiliation(s)
- Yu Chen
- Department of Gastroenterology, The First Affiliated Hospital of Hubei University of Science and Technology, The Central Hospital of Xianning, Xianning, China
| | - Lu Chen
- Department of Gastroenterology, The First Affiliated Hospital of Hubei University of Science and Technology, The Central Hospital of Xianning, Xianning, China
| | - Jieyun Wu
- Department of Gastroenterology, The First Affiliated Hospital of Hubei University of Science and Technology, The Central Hospital of Xianning, Xianning, China
| | - Dazhi Su
- Department of Gastroenterology, The First Affiliated Hospital of Hubei University of Science and Technology, The Central Hospital of Xianning, Xianning, China.
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26
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Li Z, Xing J. Potential therapeutic applications of circular RNA in acute kidney injury. Biomed Pharmacother 2024; 174:116502. [PMID: 38569273 DOI: 10.1016/j.biopha.2024.116502] [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: 12/27/2023] [Revised: 03/12/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024] Open
Abstract
Acute kidney injury (AKI) is a common clinical syndrome characterized by a rapid deterioration in renal function, manifested by a significant increase in creatinine and a sharp decrease in urine output. The incidence of morbidity and mortality associated with AKI is on the rise, with most patients progressing to chronic kidney disease or end-stage renal disease. Treatment options for patients with AKI remain limited. Circular RNA (circRNA) is a wide and diverse class of non-coding RNAs that are present in a variety of organisms and are involved in gene expression regulation. Studies have shown that circRNA acts as a competing RNA, is involved in disease occurrence and development, and has potential as a disease diagnostic and prognostic marker. CircRNA is involved in the regulation of important biological processes, including apoptosis, oxidative stress, and inflammation. This study reviews the current status and progress of circRNA research in the context of AKI.
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Affiliation(s)
- Zheng Li
- Department of Emergency Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Jihong Xing
- Department of Emergency Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
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27
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Qiu S, Zhang K, Chen S, Yin S. Circular RNA PRKCI (hsa_circ_0067934): a potential target in the pathogenesis of human malignancies. Front Oncol 2024; 14:1365032. [PMID: 38741779 PMCID: PMC11089142 DOI: 10.3389/fonc.2024.1365032] [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: 01/03/2024] [Accepted: 03/29/2024] [Indexed: 05/16/2024] Open
Abstract
Circular RNAs (circRNAs) are a new type of endogenous non-coding RNA formed by a covalent closed loop. CircRNAs are characterized by specificity, universality, conservation, and stability. They are abundant in eukaryotic cells and have biological regulatory roles at various transcriptional and post-transcriptional levels. The upregulation of circPRKCI has been observed in a variety of tumors and is directly related to the clinicopathological characteristics of tumors and prognosis. More importantly, circPRKCI can participate in the tumorigenesis, progression, recurrence, and metastasis of various tumors through many functional mechanisms, including the activation of signaling pathways, such as the phosphatidylinositol-3-kinase (PI3K)/AKT pathway, and sponging of many microRNAs (miRNAs). This review summarizes the progress achieved in understanding the biological functions of circRNA PRKCI in various tumors. The goal is to inform the discovery of more functional mechanisms and new anticancer molecular targets.
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Affiliation(s)
- Shipei Qiu
- Department of General Surgery, Southeast University Affiliated Zhongda Hospital, Nanjing, China
| | - Kefan Zhang
- Department of Cardiothoracic Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Siyu Chen
- Department of Intensive Care Unit, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Shuting Yin
- Department of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
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28
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Chen F, Xing Y, Chen Z, Chen X, Li J, Gong S, Luo F, Cai Q. Competitive adsorption of microRNA-532-3p by circular RNA SOD2 activates Thioredoxin Interacting Protein/NLR family pyrin domain containing 3 pathway and promotes pyroptosis of non-alcoholic fatty hepatocytes. Eur J Med Res 2024; 29:250. [PMID: 38659023 PMCID: PMC11044449 DOI: 10.1186/s40001-024-01817-4] [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: 10/13/2023] [Accepted: 03/28/2024] [Indexed: 04/26/2024] Open
Abstract
OBJECTIVE There is a growing body of evidence indicating that pyroptosis, a programmed cell death mechanism, plays a crucial role in the exacerbation of inflammation and fibrosis in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Circular RNAs (circRNAs), functioning as vital regulators within NAFLD, have been shown to mediate the process of cell pyroptosis. This study aims to elucidate the roles and mechanisms of circRNAs in NAFLD. METHODS Utilizing a high-fat diet (HFD)-induced rat model for in vivo experimentation and hepatocytes treated with palmitic acid (PA) for in vitro models, we identified circular RNA SOD2 (circSOD2) as our circRNA of interest through analysis with the circMine database. The expression levels of associated genes and pyroptosis-related proteins were determined using quantitative real-time polymerase chain reaction and Western blotting, alongside immunohistochemistry. Serum liver function markers, cellular inflammatory cytokines, malondialdehyde, lactate dehydrogenase levels, and mitochondrial membrane potential, were assessed using enzyme-linked immunosorbent assay, standard assay kits, or JC-1 staining. Flow cytometry was employed to detect pyroptotic cells, and lipid deposition in liver tissues was observed via Oil Red O staining. The interactions between miR-532-3p/circSOD2 and miR-532-3p/Thioredoxin Interacting Protein (TXNIP) were validated through dual-luciferase reporter assays and RNA immunoprecipitation experiments. RESULTS Our findings demonstrate that, in both in vivo and in vitro NAFLD models, there was an upregulation of circSOD2 and TXNIP, alongside a downregulation of miR-532-3p. Mechanistically, miR-532-3p directly bound to the 3'-UTR of TXNIP, thereby mediating inflammation and cell pyroptosis through targeting the TXNIP/NLR family pyrin domain containing 3 (NLRP3) inflammasome signaling pathway. circSOD2 directly interacted with miR-532-3p, relieving the suppression on the TXNIP/NLRP3 signaling pathway. Functionally, the knockdown of circSOD2 or TXNIP improved hepatocyte pyroptosis; the deletion of miR-532-3p reversed the effects of circSOD2 knockdown, and the deletion of TXNIP reversed the effects of circSOD2 overexpression. Furthermore, the knockdown of circSOD2 significantly mitigated the progression of NAFLD in vivo. CONCLUSION circSOD2 competitively sponges miR-532-3p to activate the TXNIP/NLRP3 inflammasome signaling pathway, promoting pyroptosis in NAFLD.
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Affiliation(s)
- FengJuan Chen
- Department of Hepatopathy, The Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, No. 29, Bulan Road, Longgang District, Shenzhen City, 518112, Guangdong Province, China
| | - YuFeng Xing
- Department of Hepatopathy, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen City, 518033, Guangdong Province, China
| | - ZhiJie Chen
- Department of Hepatopathy, The Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, No. 29, Bulan Road, Longgang District, Shenzhen City, 518112, Guangdong Province, China
| | - XiaoMan Chen
- Department of Infectious Diseases, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou City, 510630, Guangdong Province, China
| | - Jie Li
- Department of Hepatopathy, The Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, No. 29, Bulan Road, Longgang District, Shenzhen City, 518112, Guangdong Province, China
| | - Si Gong
- Department of Hepatopathy, The Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, No. 29, Bulan Road, Longgang District, Shenzhen City, 518112, Guangdong Province, China
| | - Fang Luo
- Department of Hepatopathy, The Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, No. 29, Bulan Road, Longgang District, Shenzhen City, 518112, Guangdong Province, China
| | - QingXian Cai
- Department of Hepatopathy, The Third People's Hospital of Shenzhen, The Second Affiliated Hospital of Southern University of Science and Technology, No. 29, Bulan Road, Longgang District, Shenzhen City, 518112, Guangdong Province, China.
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Zhang L, Zhang L, Zhang C, Shi S, Cao Z, Shao C, Li J, Yang Y, Zhang X, Wang J, Li X. circTADA2A inhibited SLC38A1 expression and suppresses melanoma progression through the prevention of CNBP trans-activation. PLoS One 2024; 19:e0301356. [PMID: 38635778 PMCID: PMC11025954 DOI: 10.1371/journal.pone.0301356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 03/14/2024] [Indexed: 04/20/2024] Open
Abstract
BACKGROUND CircTADA2A has been demonstrated to play critical roles in the occurrence and development of human cancer. However, the expression pattern and biological mechanisms of circTADA2A in melanoma remains largely unknown. METHODS CircTADA2A were detected by quantitative real-time RT-PCR (qRT-PCR) and validated by Sanger sequencing. Function of circTADA2A and its protein partner in melanoma cells was investigated using RNA interference and overexpression assays. Interaction of circTADA2A, CCHC-type zinc finger nucleic acid binding protein (CNBP) and solute carrier family 38 member 1 (SLC38A1) was confirmed by RNA immunoprecipitation, RNA pull-down, and dual-luciferase reporter assay. The expression of genes and proteins were detected by qRT-PCR and western blot assays. RESULTS Data from the investigation showed that a novel circRNA (circTADA2A, hsa_circ_0043278) was markedly downregulated in melanoma cells. Functionally, circTADA2A repressed cell proliferation, migration, invasion in melanoma cells. Mechanistically, circTADA2A interacted with CNBP, acting to suppress the binding of CNBP to the SLC38A1 promoter and subsequently restrained SLC38A1 transcription, which resulting in repression of melanoma progression. CONCLUSIONS CircTADA2A suppresses melanoma progression by regulating CNBP/SLC38A1 axis, indicating a potential therapeutic target in melanoma.
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Affiliation(s)
- Longjun Zhang
- Department of Plastic Surgery, Affiliated Xing Tai People Hospital of Hebei Medical University, Xingtai, Hebei, China
| | - Le Zhang
- Department of Oral Surgery, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Chi Zhang
- Department of Cataract, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Sunan Shi
- Department of Otolaryngology, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Zhilei Cao
- Department of Operation and Anaesthesia, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Changliang Shao
- Department of Optometry, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Jie Li
- Department of Operation and Anaesthesia, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Yingshun Yang
- Department of Oral Surgery, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Xi Zhang
- Department of Oral Surgery, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Jian Wang
- Department of Oral Surgery, Hebei Provincial Eye Hospital, Xingtai, Hebei, China
| | - Xiangyun Li
- Department of Plastic Surgery, Affiliated Xing Tai People Hospital of Hebei Medical University, Xingtai, Hebei, China
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30
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Zhou Z, Xu F, Zhang T. Circular RNA COL1A1 promotes Warburg effect and tumor growth in nasopharyngeal carcinoma. Discov Oncol 2024; 15:120. [PMID: 38619648 PMCID: PMC11018599 DOI: 10.1007/s12672-024-00941-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/18/2024] [Indexed: 04/16/2024] Open
Abstract
OBJECTIVE Circular RNAs (circRNAs), pivotal in the pathogenesis and progression of nasopharyngeal carcinoma (NPC), remain a significant point of investigation for potential therapeutic interventions. Our research was driven by the objective to decipher the roles and underlying mechanisms of hsa_circ_0044569 (circCOL1A1) in governing the malignant phenotypes and the Warburg effect in NPC. METHODS We systematically collected samples from NPC tissues and normal nasopharyngeal epithelial counterparts. The expression levels of circCOL1A1, microRNA-370-5p (miR-370-5p), and prothymosin alpha (PTMA) were quantitatively determined using quantitative polymerase chain reaction (qPCR) and Western blotting. Transfections in NPC cell lines were conducted using small interfering RNAs (siRNAs) or vectors carrying the pcDNA 3.1 construct for overexpression studies. We interrogated the circCOL1A1/miR-370-5p/PTMA axis's role in cellular functions through a series of assays: 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide for cell viability, colony formation for growth, Transwell assays for migration and invasion, and Western blotting for protein expression profiling. To elucidate the molecular interactions, we employed luciferase reporter assays and RNA immunoprecipitation techniques. RESULTS Our investigations revealed that circCOL1A1 was a stable circRNA, highly expressed in both NPC tissues and derived cell lines. A correlation analysis with clinical pathological features demonstrated a significant association between circCOL1A1 expression, lymph node metastasis, and the tumor node metastasis staging system of NPC. Functionally, silencing circCOL1A1 led to substantial suppression of cell proliferation, migration, invasion, and metabolic alterations characteristic of the Warburg effect in NPC cells. At the molecular level, circCOL1A1 appeared to modulate PTMA expression by acting as a competitive endogenous RNA or 'sponge' for miR-370-5p, which in turn promoted the malignant characteristics of NPC cells. CONCLUSION To conclude, our findings delineate that circCOL1A1 exerts its oncogenic influence in NPC through the modulation of the miR-370-5p/PTMA signaling axis.
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Affiliation(s)
- ZeJun Zhou
- Department of Otolaryngology, The First Affiliated Hospital of Jinan University, No. 613 West Huangpu Avenue, Tianhe District, Guangzhou, 510630, Guangdong, China
| | - Fang Xu
- Health Management Center, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China
| | - Tao Zhang
- Department of Otolaryngology, The First Affiliated Hospital of Jinan University, No. 613 West Huangpu Avenue, Tianhe District, Guangzhou, 510630, Guangdong, China.
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Zhang W, Xiao P, Liu B, Zhang Y. Circ-10720 as a ceRNA adsorbs microRNA-1238 and modulates ZEB2 to boost NSCLC development by activating EMT. Eur J Med Res 2024; 29:226. [PMID: 38610009 PMCID: PMC11010388 DOI: 10.1186/s40001-024-01715-9] [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: 03/03/2023] [Accepted: 02/06/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) are critical regulators in the progression of tumors. This experimental design aimed to explore the mechanism of circ-10720 in non-small cell lung cancer (NSCLC). METHODS We used RT-qPCR to measure circ-10720 expression in clinical samples and analyzed its relationship with the clinicopathological characteristics of NSCLC patients. The expression levels of microRNA-1238 (miR-1238) and Zinc Finger E-box-binding Homeobox 2 (ZEB2) in clinical samples were detected by RT-qPCR. NSCLC cells were transfected with relevant plasmids or sequences. Circ-10720, miR-1238, and ZEB2 expressions in cells were analyzed via RT-qPCR or western blot. Cell proliferation, apoptosis, migration, and invasion were assessed with CCK-8, flow cytometry, and transwell assay, respectively. The protein expression of ZEB2 and epithelial-mesenchymal transition (EMT)-related markers (E-cadherin, Vimentin, N-cadherin) were detected via western blot. Xenograft assay was used to determine the effect of circ-10720 on NSCLC in vivo. Circ-10720 and ZEB2 expressions in tumors were detected using RT-qPCR or Western blot. Immunohistochemistry was used to evaluate E-cadherin and N-cadherin expression in tumors. Finally, the binding relationship between miR-1238 with circ-10720 or ZEB2 was verified by the bioinformatics website, dual luciferase reporter assay, RNA pull-down assay, and RIP assay. RESULTS Circ-10720 was upregulated in NSCLC and correlated with TNM stage of NSCLC patients. MiR-1238 was lowly expressed but ZEB2 was highly expressed in NSCLC. Circ-10720 silencing suppressed the proliferation, metastasis, and EMT of NSCLC cells. Mechanically, circ-10720 was a competitive endogenous RNA (ceRNA) for miR-1238, and ZEB2 was a target of miR-1238. circ-10720-modulated ZEB2 via competitively binding with miR-1238 to control NSCLC progression. In addition, circ-10720 knockdown suppressed tumor growth in vivo. CONCLUSIONS Circ-10720 acts as a ceRNA to adsorb miR-1238 and modulate ZEB2 to facilitate the proliferation, migration, invasion, and EMT of NSCLC cells.
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Affiliation(s)
- Wei Zhang
- Department of Medical Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, People's South Road, Section 4, Number 55, Chengdu, 610041, Sichuan, China
| | - Ping Xiao
- Department of Thoracic Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610041, Sichuan, China
| | - Bin Liu
- Department of Medical Oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, People's South Road, Section 4, Number 55, Chengdu, 610041, Sichuan, China.
| | - Yan Zhang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, 37 Guoxue Lane, Wuhou District, Chengdu, 610041, Sichuan, China.
- Lung Cancer Center/Lung Cancer Institute, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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Zhang Z, Liu W, Huang T, Li J, Hu H, Xu X, Fan Z. CircCPA4 induces ASCT2 expression to promote tumor property of non-small cell lung cancer cells in a miR-145-5p-dependent manner. Thorac Cancer 2024; 15:764-777. [PMID: 38400818 PMCID: PMC10995715 DOI: 10.1111/1759-7714.15257] [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: 12/14/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/26/2024] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is a type of lung cancer that occurs in the cells of the respiratory tract, and its development is influenced by the regulation of circular RNAs (circRNAs). However, the role of circRNA carboxypeptidase A4 (circCPA4) in the progression of NSCLC and the underlying mechanism remain relatively clear. METHODS The study utilized both real-time quantitative polymerase chain reaction (RT-qPCR) and western blot techniques to evaluate the levels of circCPA4, microRNA-145-5p (miR-145-5p), alanine, serine, or cysteine-preferring transporter 2 (ASCT2). To assess cell proliferation, cell counting kit-8 (CCK8) and 5-ethynyl-2'-deoxyuridine (EdU) assays were performed. Apoptosis was determined using flow cytometry, while cell migration and invasive capacity were evaluated through transwell and wound-healing assays. Intracellular levels of glutamine, glutamate, and α-KG were measured using specific kits. The relationship between miR-145-5p and circCPA4 or ASCT2 was confirmed using dual-luciferase reporter assay and RNA immunoprecipitation assay. RESULTS CircCPA4 and ASCT2 RNA levels were elevated, while miR-145-5p was downregulated in both NSCLC tissues and cells. Depletion of circCPA4 significantly inhibited NSCLC cell proliferation, migration, invasion, and intracellular levels of glutamine, glutamate, and α-KG, and promoted apoptosis. Moreover, circCPA4 knockdown delayed tumor growth in vivo. Furthermore, circCPA4 was found to bind to miR-145-5p, thereby regulating the progression of NSCLC in vitro. ASCT2 was also identified as a downstream target of miR-145-5p, and its upregulation rescued the effects of miR-145-5p overexpression on NSCLC cell processes. CONCLUSION CircCPA4 knockdown inhibited tumor property of NSCLC cells by modulating the miR-145-5p/ASCT2 axis.
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Affiliation(s)
| | - Weiliang Liu
- Department of Cardiothoracic SurgeryHanzhongChina
| | - Tao Huang
- Department of Cardiothoracic SurgeryHanzhongChina
| | - Junyan Li
- Department of Cardiothoracic SurgeryHanzhongChina
| | - Hui Hu
- Department of Cardiothoracic SurgeryHanzhongChina
| | - Xinyu Xu
- Department of Cardiothoracic SurgeryHanzhongChina
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Liu S, Wu X, Wang Y, Chen Y. Exosomal circ_0000735 contributes to non-small lung cancer malignant progression. J Biochem Mol Toxicol 2024; 38:e23700. [PMID: 38528705 DOI: 10.1002/jbt.23700] [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: 10/24/2023] [Revised: 03/07/2024] [Accepted: 03/12/2024] [Indexed: 03/27/2024]
Abstract
Circular RNA is an important regulator for non-small cell lung cancer (NSCLC). Circ_0000735 has been found to be significantly overexpressed in NSCLC tissues. Therefore, its role and mechanism in NSCLC progression need to be further explored. The expression levels of circ_0000735, miR-345-5p and A disintegrin and metalloprotease 19 (ADAM19) were determined using quantitative real-time PCR. EdU staining, wound healing and transwell assays were utilized to detect cell proliferation and metastasis. The protein levels of metastasis markers, exosome markers and ADAM19 were determined using western blot. Animal experiments were performed to confirm the role of circ_0000735 in NSCLC tumorigenesis. The exosomes from cells and serum were identified using transmission electron microscopy and nanoparticle tracking analysis. We found that circ_0000735 was upregulated in NSCLC, and its knockdown repressed NSCLC cell proliferation and metastasis. In terms of mechanism, circ_0000735 targeted miR-345-5p to regulate ADAM19. MiR-345-5p inhibitor reversed the suppressive effect of circ_0000735 knockdown on NSCLC progression, and ADAM19 overexpression abolished the inhibition effect of miR-345-5p on NSCLC progression. Also, animal experiments showed that silencing of circ_0000735 reduced NSCLC tumorigenesis. In addition, exosomes mediated the intercellular transmission of circ_0000735, and serum exosomal circ_0000735 might be an important indicator for the diagnosis of NSCLC. In conclusion, circ_0000735 facilitated NSCLC progression via miR-345-5p/ADAM19 pathway, and serum exosomal circ_0000735 might be a potential biomarker for NSCLC diagnosis.
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Affiliation(s)
- Sijie Liu
- Department of Thoracic Surgery, Beijing Aerospace General Hospital, Beijing, China
| | - Xun Wu
- Department of Thoracic Surgery, Beijing Aerospace General Hospital, Beijing, China
| | - Yanjie Wang
- Department of Thoracic Surgery, Beijing Aerospace General Hospital, Beijing, China
| | - Yingtai Chen
- Department of Thoracic Surgery, Beijing Aerospace General Hospital, Beijing, China
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Hussain MS, Moglad E, Afzal M, Bansal P, Kaur H, Deorari M, Ali H, Shahwan M, Hassan Almalki W, Kazmi I, Alzarea SI, Singh SK, Dua K, Gupta G. Circular RNAs in the KRAS pathway: Emerging players in cancer progression. Pathol Res Pract 2024; 256:155259. [PMID: 38503004 DOI: 10.1016/j.prp.2024.155259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/21/2024]
Abstract
Circular RNAs (circRNAs) have been recognized as key components in the intricate regulatory network of the KRAS pathway across various cancers. The KRAS pathway, a central signalling cascade crucial in tumorigenesis, has gained substantial emphasis as a possible therapeutic target. CircRNAs, a subgroup of non-coding RNAs known for their closed circular arrangement, play diverse roles in gene regulation, contributing to the intricate landscape of cancer biology. This review consolidates existing knowledge on circRNAs within the framework of the KRAS pathway, emphasizing their multifaceted functions in cancer progression. Notable circRNAs, such as Circ_GLG1 and circITGA7, have been identified as pivotal regulators in colorectal cancer (CRC), influencing KRAS expression and the Ras signaling pathway. Aside from their significance in gene regulation, circRNAs contribute to immune evasion, apoptosis, and drug tolerance within KRAS-driven cancers, adding complexity to the intricate interplay. While our comprehension of circRNAs in the KRAS pathway is evolving, challenges such as the diverse landscape of KRAS mutant tumors and the necessity for synergistic combination therapies persist. Integrating cutting-edge technologies, including deep learning-based prediction methods, holds the potential for unveiling disease-associated circRNAs and identifying novel therapeutic targets. Sustained research efforts are crucial to comprehensively unravel the molecular mechanisms governing the intricate interplay between circRNAs and the KRAS pathway, offering insights that could potentially revolutionize cancer diagnostics and treatment strategies.
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Affiliation(s)
- Md Sadique Hussain
- School of Pharmaceutical Sciences, Jaipur National University, Jagatpura, Jaipur, Rajasthan 302017, India
| | - Ehssan Moglad
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam bin Abdulaziz University, Alkharj 11942, Saudi Arabia
| | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Pooja Bansal
- Department of Biotechnology and Genetics, Jain (Deemed-to-be) University, Bengaluru, Bengaluru, Karnataka 560069, India; Department of Allied Healthcare and Sciences, Vivekananda Global University, Jaipur, Rajasthan 303012, India
| | - Harpreet Kaur
- School of Basic & Applied Sciences, Shobhit University, Gangoh, Uttar Pradesh 247341, India; Department of Health & Allied Sciences, Arka Jain University, Jamshedpur, Jharkhand 831001, India
| | - Mahamedha Deorari
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Haider Ali
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; Department of Pharmacology, Kyrgyz State Medical College, Bishkek, Kyrgyzstan
| | - Moyad Shahwan
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman 346, United Arab Emirates; Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman 346, United Arab Emirates
| | - 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, Jeddah, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Al-Jouf, Saudi Arabia
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology, Ultimo, Sydney, NSW 2007, Australia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology, Ultimo, Sydney, NSW 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology, Ultimo, Sydney, NSW 2007, Australia
| | - Gaurav Gupta
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman 346, United Arab Emirates; School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India.
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Li Z, Tong G, Peng X, Wang S. Circ_0000370 Plays an Oncogenic Role in Colorectal Cancer by Regulating the miR-502-5p/SIRT1 Axis. Biochem Genet 2024; 62:1231-1247. [PMID: 37561331 DOI: 10.1007/s10528-023-10468-9] [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: 04/25/2023] [Accepted: 07/24/2023] [Indexed: 08/11/2023]
Abstract
The importance of circular RNA has been reported in cancer development. However, the role and mechanism of circ_0000370 in CRC progression are still unclear. Quantitative real-time PCR and Western blot assay were performed to measure RNA and protein expression. Cell proliferation was assessed by cell colony formation assay and 5-Ethynyl-2'-deoxyuridine assay. Flow cytometry was used to measure cell apoptosis. Cell migration and invasion were detected by transwell assay. The intermolecular target relations between miR-502-5p and circ_0000370 or SIRT1 were confirmed by dual-luciferase reporter assay and RNA immunoprecipitation assay. A xenograft tumor model was established to examine the role of circ_0000370 in tumor growth in vivo. As compared with controls, the expression of circ_0000370 was upregulated in CRC tissues and cells. Circ_0000370 depletion inhibited CRC cell proliferation, migration and invasion but induced cell apoptosis. Meanwhile, circ_0000370 depletion restrained tumor growth in vivo. In addition, miR-502-5p inhibitor partly reverted the impacts of circ_0000370 knockdown on CRC cells. Moreover, miR-502-5p mimic-caused effects on cell phenotypes were attenuated by SIRT1 overexpression. Circ_0000370 induced the proliferation and metastasis of CRC cells by sponging miR-502-5p and enhancing SIRT1 expression, which provided a possible target for CRC treatment.
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Affiliation(s)
- Zhu Li
- Department of Oncology, Peking University Shenzhen Hospital, 1120 Lianhua Road, Futian District, Shenzhen, 518000, Guangdong, China
| | - Gangling Tong
- Department of Oncology, Peking University Shenzhen Hospital, 1120 Lianhua Road, Futian District, Shenzhen, 518000, Guangdong, China
| | - Xiaodan Peng
- Department of Oncology, Peking University Shenzhen Hospital, 1120 Lianhua Road, Futian District, Shenzhen, 518000, Guangdong, China
| | - Shubin Wang
- Department of Oncology, Peking University Shenzhen Hospital, 1120 Lianhua Road, Futian District, Shenzhen, 518000, Guangdong, China.
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Wang H, Jia Y, Bai X, Wang J, Liu G, Wang H, Wu Y, Xin J, Ma H, Liu Z, Zou D, Zhao H. Whole-transcriptome profiling and identification of cold tolerance-related ceRNA networks in japonica rice varieties. FRONTIERS IN PLANT SCIENCE 2024; 15:1260591. [PMID: 38567126 PMCID: PMC10985246 DOI: 10.3389/fpls.2024.1260591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 02/02/2024] [Indexed: 04/04/2024]
Abstract
Introduction Low-temperature stress negatively impacts rice yield, posing a significant risk to food security. While previous studies have explored the physiological and linear gene expression alterations in rice under low-temperature conditions, the changes in competing endogenous RNA (ceRNA) networks remain largely unexamined. Methods We conducted RNA sequencing on two japonica rice varieties with differing cold-tolerance capabilities to establish ceRNA networks. This enabled us to investigate the transcriptional regulatory network and molecular mechanisms that rice employs in response to low-temperature stress. Results We identified 364 differentially expressed circular RNAs (circRNAs), 224 differentially expressed microRNAs (miRNAs), and 12,183 differentially expressed messenger RNAs (mRNAs). WRKY family was the most prominent transcription factor family involved in cold tolerance. Based on the expression patterns and targeted relationships of these differentially expressed RNAs, we discerned five potential ceRNA networks related to low-temperature stress in rice: osa-miR166j-5p from the miR166 family was associated with cold tolerance; osa-miR528-3p and osa-miR156j-3p were linked to stress response; and osa-miR156j-3p was involved in the antioxidant system. In addition, Os03g0152000 in the antioxidant system, as well as Os12g0491800 and Os05g0381400, correlated with the corresponding stress response and circRNAs in the network. A gene sequence difference analysis and phenotypic validation of Os11g0685700 (OsWRKY61) within the WRKY family suggested its potential role in regulating cold tolerance in rice. Discussion and conclusion We identified Os11g0685700 (OsWRKY61) as a promising candidate gene for enhancing cold tolerance in japonica rice. The candidate miRNAs, mRNAs, and circRNAs uncovered in this study are valuable targets for researchers and breeders. Our findings will facilitate the development of cold-tolerant rice varieties from multiple angles and provide critical directions for future research into the functions of cold-tolerance-related miRNAs, mRNAs, and circRNAs in rice.
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Affiliation(s)
- Hao Wang
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Yan Jia
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Xu Bai
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Jin Wang
- Bei Da Huang Kenfeng Seed Limited Company, Research and Breeding Center, Harbin, China
| | - Ge Liu
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Haixing Wang
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Yulong Wu
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Junying Xin
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Huimiao Ma
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Zhenyu Liu
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Detang Zou
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
| | - Hongwei Zhao
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, China
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Arabpour J, Rezaei K, Khojini JY, Razi S, Hayati MJ, Gheibihayat SM. The potential role and mechanism of circRNAs in Ferroptosis: A comprehensive review. Pathol Res Pract 2024; 255:155203. [PMID: 38368664 DOI: 10.1016/j.prp.2024.155203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/03/2024] [Accepted: 02/07/2024] [Indexed: 02/20/2024]
Abstract
Cell death encompasses various mechanisms, including necrosis and apoptosis. Ferroptosis, a unique form of regulated cell death, emerged as a non-apoptotic process reliant on iron and reactive oxygen species (ROS). Distinguishing itself from other forms of cell death, ferroptosis exhibits distinct morphological, biochemical, and genetic features. Circular RNAs (circRNAs), a novel class of RNA molecules, play crucial regulatory roles in ferroptosis-mediated pathways and cellular processes. With their circular structure and stability, circRNAs function as microRNA sponges and participate in protein regulation, offering diverse mechanisms for cellular control. Accumulating evidence indicates that circRNAs are key players in diseases associated with ferroptosis, presenting opportunities for diagnostic and therapeutic applications. This study explores the regulatory roles of circRNAs in ferroptosis and their potential in diseases such as cancer, neurological disorders, and cardiovascular diseases. By investigating the relationship between circRNAs and ferroptosis, this research provides new insights into the diagnosis, treatment, and prognosis of ferroptosis-related diseases. Furthermore, the therapeutic implications of targeting circRNAs in cancer treatment and the modulation of ferroptosis pathways demonstrate the potential of circRNAs as diagnostic markers and therapeutic targets. Overall, understanding the involvement of circRNAs in regulating ferroptosis opens up new avenues for advancements in disease management.
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Affiliation(s)
- Javad Arabpour
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Kimia Rezaei
- Department of Cell and Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Javad Yaghmoorian Khojini
- Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Shokufeh Razi
- Department of Genetics, Faculty of Basic Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Javad Hayati
- Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Seyed Mohammad Gheibihayat
- Yazd Cardiovascular Research Center, Non-communicable Diseases Research Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Dai T, Qiu S, Gao X, Zhao C, Ge Z, Yang Y, Tang C, Feng S. Circular RNA circWNK1 inhibits the progression of gastric cancer via regulating the miR-21-3p/SMAD7 axis. Cancer Sci 2024; 115:974-988. [PMID: 38287200 PMCID: PMC10921006 DOI: 10.1111/cas.16067] [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: 10/31/2023] [Revised: 12/20/2023] [Accepted: 12/30/2023] [Indexed: 01/31/2024] Open
Abstract
Gastric cancer (GC) is a highly aggressive malignancy with limited treatment options for advanced-stage patients. Recent studies have highlighted the role of circular RNA (circRNA) as a novel regulator of cancer progression in various malignancies. However, the underlying mechanisms by which circRNA contributes to the development and progression of GC remain poorly understood. In this study, we utilized microarrays and real-time quantitative polymerase chain reaction (qRT-PCR) to identify and validate a downregulated circRNA, hsa_circ_0003251 (referred to as circWNK1), in paired GC and normal tissues. Through a series of in vitro and in vivo gain-of-function and loss-of-function assays, we demonstrated that circWNK1 exerts inhibitory effects on the proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) of GC cells. Additionally, we discovered that circWNK1 acts as a competitive endogenous RNA (ceRNA) for SMAD7 by sequestering miR-21-3p. Our findings were supported by comprehensive biological information analysis, as well as RNA pull-down, luciferase reporter gene, and western blot assays. Notably, the downregulation of circWNK1 in GC cells resulted in reduced SMAD7 expression, subsequently activating the TGF-β signaling pathway. Collectively, our study reveals that circWNK1 functions as a tumor suppressor in GC by regulating the miR-21-3p/SMAD7-mediated TGF-β signaling pathway. Furthermore, circWNK1 holds promise as a potential biomarker for the diagnosis and treatment of GC.
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Affiliation(s)
- Ting Dai
- Department of Gastroenterology, Nantong First People's HospitalAffiliated Hospital 2 of Nantong UniversityNantongChina
| | - Shengkui Qiu
- Department of General Surgery, Nantong First People's HospitalAffiliated Hospital 2 of Nantong UniversityNantongChina
| | - Xuesong Gao
- Department of General Surgery, Nantong First People's HospitalAffiliated Hospital 2 of Nantong UniversityNantongChina
| | - Chengjin Zhao
- Department of Gastroenterology, Nantong First People's HospitalAffiliated Hospital 2 of Nantong UniversityNantongChina
| | - Zhenming Ge
- Department of Gastroenterology, Nantong First People's HospitalAffiliated Hospital 2 of Nantong UniversityNantongChina
| | - Yanmei Yang
- Department of Gastroenterology, Nantong First People's HospitalAffiliated Hospital 2 of Nantong UniversityNantongChina
| | - Chong Tang
- Department of General Surgery, Nantong First People's HospitalAffiliated Hospital 2 of Nantong UniversityNantongChina
- Nantong Clinical Medical CollegeKangda College of Nanjing Medical UniversityNantongChina
| | - Shichun Feng
- Department of General Surgery, Nantong First People's HospitalAffiliated Hospital 2 of Nantong UniversityNantongChina
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He H, Li T. Hsa_circ_0000190 Promotes NSCLC Cell Resistance to Cisplatin via the Modulation of the miR-1253/IL-6 Axis. Anal Cell Pathol (Amst) 2024; 2024:6647810. [PMID: 38440120 PMCID: PMC10911877 DOI: 10.1155/2024/6647810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/10/2023] [Accepted: 01/24/2024] [Indexed: 03/06/2024] Open
Abstract
Background This study explored the mechanistic basis for nonsmall cell lung cancer (NSCLC) cisplatin (DDP) treatment resistance in an effort to define effective approaches to abrogating the emergence of such chemoresistance. Methods Analyses of NSCLC expression of hsa_circ_0000190, miR-1253, and interleukin 6 (IL-6) were conducted via a quantitative real-time polymerase chain reaction (qPCR) approach, while the ability of these tumor cells to resist DDP treatment was evaluated with a CCK-8 assay. Interactions between different RNA molecules were assessed using both RNA immunoprecipitation and dual-luciferase reporter assays. Results NSCLC cell lines and tissues resistant to DDP were found to express higher levels of hsa_circ_0000190, and knocking down this circRNA in NSCLC cells was associated with greater sensitivity to DDP exposure. Further research identified miR-1253 as a hsa_circ_0000190 target, with the ability of hsa_circ_0000190 knockdown to restore DDP sensitivity being largely attributable to the ability of this circRNA to suppress miR-1253 activity. IL-6 was identified as a major miR-1253 target in this context, with miR-1253 regulating chemoresistance in NSCLC cells in part by preventing IL-6 upregulation. Conclusion Together, these data suggest that hsa_circ_0000190 can promote DDP chemoresistance in NSCLC cells through its ability to modulate miR-1253/IL-6 axis activity, highlighting a novel pathway that can be targeted in an effort to guide the more effective diagnosis and management of DDP-resistant tumors.
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Affiliation(s)
- Hua He
- Department of Respiratory, Nanjing Chest Hospital, Affiliated Nanjing Brain Hospital, Nanjing Medical University, No. 215, Guangzhou Road, Nanjing 210029, China
| | - Tian Li
- Department of Respiratory, Nanjing Chest Hospital, Affiliated Nanjing Brain Hospital, Nanjing Medical University, No. 215, Guangzhou Road, Nanjing 210029, China
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Li Y, Ling P, Li Y, Wang Y, Li G, Qiu C, Wang J, Gong K. miR-138-5p ameliorates intestinal barrier disruption caused by acute superior mesenteric vein thrombosis injury by inhibiting the NLRP3/HMGB1 axis. PeerJ 2024; 12:e16692. [PMID: 38406274 PMCID: PMC10893868 DOI: 10.7717/peerj.16692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/28/2023] [Indexed: 02/27/2024] Open
Abstract
Background Acute superior mesenteric venous thrombosis (ASMVT) decreases junction-associated protein expression and intestinal epithelial cell numbers, leading to intestinal epithelial barrier disruption. Pyroptosis has also recently been found to be one of the important causes of mucosal barrier defects. However, the role and mechanism of pyroptosis in ASMVT are not fully understood. Methods Differentially expressed microRNAs (miRNAs) in the intestinal tissues of ASMVT mice were detected by transcriptome sequencing (RNA-Seq). Gene expression levels were determined by RNA extraction and reverse transcription-quantitative PCR (RT-qPCR). Western blot and immunofluorescence staining analysis were used to analyze protein expression. H&E staining was used to observe the intestinal tissue structure. Cell Counting Kit-8 (CCK-8) and fluorescein isothiocyanate/propidine iodide (FITC/PI) were used to detect cell viability and apoptosis, respectively. Dual-luciferase reporter assays prove that miR-138-5p targets NLRP3. Results miR-138-5p expression was downregulated in ASMVT-induced intestinal tissues. Inhibition of miR-138-5p promoted NLRP3-related pyroptosis and destroyed tight junctions between IEC-6 cells, ameliorating ASMVT injury. miR-138-5p targeted to downregulate NLRP3. Knockdown of NLRP3 reversed the inhibition of proliferation, apoptosis, and pyroptosis and the decrease in tight junction proteins caused by suppression of miR-138-5p; however, this effect was later inhibited by overexpressing HMGB1. miR-138-5p inhibited pyroptosis, promoted intestinal epithelial tight junctions and alleviated ASMVT injury-induced intestinal barrier disruption via the NLRP3/HMGB1 axis.
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Affiliation(s)
- Yuejin Li
- The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Ping Ling
- The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Yu Li
- The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Yongzhi Wang
- The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Guosan Li
- The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Changtao Qiu
- The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Jianghui Wang
- The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Kunmei Gong
- The First People’s Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
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Sun L, Yeerkenbieke B, Yuemaierabola A, Liu F, Yeerxiati D, Dong X, Guo W. Expression of circular RNA has-circ-0009158 and identification of associated miRNA-mRNA network in hepatocellular carcinoma. Am J Transl Res 2024; 16:415-431. [PMID: 38463586 PMCID: PMC10918124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/10/2024] [Indexed: 03/12/2024]
Abstract
Primary hepatocellular carcinoma (HCC) affects people all over the world. Circular RNAs are involved in the growth and development of several malignancies and regulate a number of biological processes. However, the roles of has-circ-0009158 in HCC remain unknown. This study explored the expression and associated miRNA-mRNA network of has-circ-0009158 in HCC. Quantitative real-time polymerase chain reaction was used to measure the expression of hsa-circ-0009158 in the HCC tissues of 143 patients and four human HCC cell lines. Then, the potential relationship of hsa-circ-0009158 expression with clinical characteristics and prognosis of patients was analyzed using the GO and KEGG databases. Correlated miRNA-mRNA networks were forecasted using the TCGA database and Cytoscape software. The hsa-circ-0009158 expression was significantly upregulated in HCC tissues and cell lines (P<0.001). The multivariate Cox analysis revealed that HCC patients were associated with high hsa-circ-0009158 expression. The bioinformatics analysis screened 1 miRNA, and 248 mRNAs associated with the circRNA in HCC. A pathway analysis suggested that the differentially expressed genes (DEGs) may be linked to the development and growth of HCC tumors. Ten hub genes (MELK, NCAPG, BUB1B, BIRC5, CDCA8, CENPF, BUB1, CDK1, TTK, TPX2) were identified from the PPI network based on the 248 genes. Additionally, the 10 hub genes that were verified had an association between high expression levels and low overall survival rates. As a result, the high expression of hsa-circ-0009158 was found to be a separate risk factor for recurrence and a poor prognosis in HCC patients.
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Affiliation(s)
- Lili Sun
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical UniversityUrumqi 830011, Xinjiang, China
| | - Buerlan Yeerkenbieke
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical UniversityUrumqi 830011, Xinjiang, China
| | - Anwaier Yuemaierabola
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical UniversityUrumqi 830011, Xinjiang, China
| | - Fuzhong Liu
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical UniversityUrumqi 830011, Xinjiang, China
| | - Dilinaer Yeerxiati
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical UniversityUrumqi 830011, Xinjiang, China
| | - Xiaogang Dong
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Cancer Hospital of Xinjiang Medical UniversityUrumqi 830011, Xinjiang, China
| | - Wenjia Guo
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical UniversityUrumqi 830011, Xinjiang, China
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Qu B, Sun L, Xiao P, Shen H, Ren Y, Zhang J. CircCDK17 promotes the proliferation and metastasis of ovarian cancer cells by sponging miR-22-3p to regulate CD147 expression. Carcinogenesis 2024; 45:83-94. [PMID: 37952105 DOI: 10.1093/carcin/bgad079] [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] [Received: 12/16/2022] [Revised: 05/22/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023] Open
Abstract
Ovarian cancer (OC) is a common malignancy in women of reproductive age. Circular RNAs (circRNAs) are emerging players in OC progression. We investigated the function and mechanism of circular RNA hsa_circ_0027803 (circCDK17) in OC pathogenesis. Real‑time PCR (RT-qPCR) and western blot were utilized for gene and protein expression analysis, respectively. Cell counting kit‑8 (CCK-8), EdU and Transwell assays investigated OC cell proliferation, migration and invasion. The associations between circCDK17, miR-22-3p and CD147 were examined by dual-luciferase reporter and RNA-protein immunoprecipitation (RIP) assays. The in vivo model of OC nude mice was constructed to explore the role of circCDK17. CircCDK17 was increased in OC tissue and cells, and patients with higher expression of circCDK17 had a shorter survival. CircCDK17 downregulation inhibited OC cell proliferation, migration and invasion, and reduced epithelial-mesenchymal transition (EMT)-related markers. In vivo experiments showed that circCDK17 silencing inhibited OC tumor growth and metastasis. CircCDK17 depletion reduced CD147 level via sponging miR-22-3p. MiR-22-3p knockdown overturned effect of circCDK17 depletion on OC cell proliferation, migration and invasion. Meanwhile, overexpressed CD147 restored functions of circCDK17 downregulation on OC development. CircCDK17 is an important molecule that regulates OC pathogenic process through miR-22-3p/CD147.
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Affiliation(s)
- Bin Qu
- Department of Clinical Examination, Hunan Cancer Hospital, Changsha 41000, Hunan Province, P.R. China
| | - Lisha Sun
- Department of Blood Transfusion, Hunan Cancer Hospital, Changsha 41000, Hunan Province, P.R. China
| | - Ping Xiao
- Department of Clinical Examination, Hunan Cancer Hospital, Changsha 41000, Hunan Province, P.R. China
| | - Haoming Shen
- Department of Clinical Examination, Hunan Cancer Hospital, Changsha 41000, Hunan Province, P.R. China
| | - Yuxi Ren
- Department of Clinical Examination, Hunan Cancer Hospital, Changsha 41000, Hunan Province, P.R. China
| | - Jing Zhang
- Department of Clinical Examination, Hunan Cancer Hospital, Changsha 41000, Hunan Province, P.R. China
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Qin C, Wang H, Peng W, Yue B, Fu C, Shu S, Zhong J, Wang H. Circular RNA mapping reveals CircCWC22 as a MiR-3059-x sponge in yak fat deposition by regulating HMGCL. Int J Biol Macromol 2024; 257:128531. [PMID: 38042314 DOI: 10.1016/j.ijbiomac.2023.128531] [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: 09/28/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 12/04/2023]
Abstract
The regulatory mechanisms and functions of circular RNAs (circRNAs) in yak intramuscular fat (IMF) deposition remain unclear. This study aimed to investigate yak circRNAs with high and low IMF content using high-throughput sequencing. A total of 270 differentially expressed circRNAs were identified, of which 129 were upregulated and 141 were downregulated. Among these circRNAs, circCWC22, derived from the yak CWC22 gene, was further studied to understand its functions and regulatory mechanisms. Sequencing and RNase R processing confirmed the circular nature of circCWC22. By constructing a circRNA-miRNA-mRNA co-expression network, the potential regulatory pathway of circCWC22/miR-3059-x/HMGCL was identified. To investigate the roles of circCWC22, miR-3059-x, and HMGCL in the deposition of yak intramuscular preadipocytes (YIMAs), CCK-8, EdU, BODIPY, triglyceride content, and qRT-PCR analyses were performed. The results demonstrated that circCWC22, miR-3059-x, and HMGCL promoted the differentiation and inhibited the proliferation of YIMAs. Using the dual-luciferase reporter system and qRT-PCR, we confirmed that circCWC22 adsorbed miR-3059-x, and HMGCL was identified as a target gene of miR-3059-x. In conclusion, this study uncovered a large number of potential circRNAs involved in IMF deposition and highlighted the significant role of circCWC22 in yak IMF deposition via the circCWC22/miR-3059-x/HMGCL axis.
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Affiliation(s)
- Chunyu Qin
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Sichuan Province and Ministry of Education, Southwest Minzu University, Chengdu 610225, China
| | - Haibo Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Sichuan Province and Ministry of Education, Southwest Minzu University, Chengdu 610225, China
| | - Wei Peng
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China
| | - Binglin Yue
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Sichuan Province and Ministry of Education, Southwest Minzu University, Chengdu 610225, China
| | - Changqi Fu
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China
| | - Shi Shu
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China
| | - Jincheng Zhong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Sichuan Province and Ministry of Education, Southwest Minzu University, Chengdu 610225, China
| | - Hui Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Sichuan Province and Ministry of Education, Southwest Minzu University, Chengdu 610225, China.
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Liu Y, Zhou M, Zheng N, Xu H, Chen X, Duan Z, Lin T, Zeng R, Chen Q, Li M. Hsa_circ_0105040 promotes Cutbacterium acnes biofilm induced inflammation via sponge miR-146a in human keratinocyte. Int Immunopharmacol 2024; 127:111424. [PMID: 38141413 DOI: 10.1016/j.intimp.2023.111424] [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: 09/05/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Acne is a chronic inflammatory skin disease, and the pathogenesis of acne induced by Cutibacterium acnes (C.acnes) is not well understood. Recently, circular RNAs (circRNAs) have attracted much attention because of its involvement in various diseases. However, the mechanisms by which circRNAs regulated acne have rarely been reported. We identified several differentially expressed circRNAs by sequencing patient-derived acne tissues. Among them, hsa_circ_0105040 was determined to be low expressed in acne tissues and localized in the cytoplasm of human primary keratinocytes. We established a C.acnes biofilms model of acne in vitro and showed that hsa_circ_0105040 promoted inflammation via MAPK and NF-κB pathway. Mechanistically, hsa_circ_0105040 could directly bind to miR-146a and inhibit the expression of miR-146a. Moreover, hsa_circ_0105040 promoted the expression of IRAK1 and TRAF6 by sponging miR-146a, thereby elevating the level of inflammation in acne. Collectively, our data suggested that hsa_circ_0105040- miR-146a -IRAK1/TRAF6 axis was involved in regulating the inflammatory response in acne, which provided a potential therapeutic target for acne and a novel insight into the pathogenesis of inflammatory acne.
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Affiliation(s)
- Yuzhen Liu
- Department of Dermatology, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing 211100, China
| | - Meng Zhou
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Nana Zheng
- Department of Dermatology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210003, China
| | - Haoxiang Xu
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Xu Chen
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Zhimin Duan
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Tong Lin
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Rong Zeng
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China; Department of Dermatology, Yunnan Provincial Hospital of Traditional Chinese Medicine, No.120 Guanghua Rd, Kunming, Yunnan 650021, China.
| | - Qing Chen
- Department of Transfusion Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China.
| | - Min Li
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China.
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Nguyen TH, Nguyen HN, Vu TN. CircNetVis: an interactive web application for visualizing interaction networks of circular RNAs. BMC Bioinformatics 2024; 25:31. [PMID: 38233808 PMCID: PMC10795305 DOI: 10.1186/s12859-024-05646-4] [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: 09/28/2023] [Accepted: 01/09/2024] [Indexed: 01/19/2024] Open
Abstract
Analyzing the interactions of circular RNAs (circRNAs) is a crucial step in understanding their functional impacts. While there are numerous visualization tools available for investigating circRNA interaction networks, these tools are typically limited to known circRNAs from specific databases. Moreover, these existing tools usually require complex installation procedures which can be time-consuming and challenging for users. There is a lack of a user-friendly web application that facilitates interactive exploration and visualization of circRNA interaction networks. CircNetVis is an interactive online web application to enhance the analysis of human/mouse circRNA interactions. The tool allows three different input formats of circRNAs including circRNA IDs from CircBase, circRNA coordinates (chromosome, start position, end position), and circRNA sequences in the FASTA format. It integrates multiple interaction networks for visualization and investigation of the interplay between circRNA, microRNAs, mRNAs and RNA binding proteins. CircNetVis also enables users to interactively explore the interactions of unknown circRNAs which are not reported from previous databases. The tool can generate interactive plots and allows users to save results as output files for offline usage. CircNetVis is implemented as a web application using R-shiny and freely available for academic use at https://www.meb.ki.se/shiny/truvu/CircNetVis/ .
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Affiliation(s)
- Thi-Hau Nguyen
- University of Engineering and Technology, Vietnam National University in Hanoi, Hanoi, 84024, Vietnam
| | - Ha-Nam Nguyen
- University of Engineering and Technology, Vietnam National University in Hanoi, Hanoi, 84024, Vietnam
- Department of Information Technology, Electric Power University, Hanoi, 84024, Vietnam
| | - Trung Nghia Vu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 17177, Stockholm, Sweden.
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Li Y, Ma L, Li P. Circ_FNDC3B Promotes Cell Proliferation and Metastasis in Esophageal Squamous Cell Carcinoma via Regulating MAPK1 by Binding to miR-136-5p. Biochem Genet 2024:10.1007/s10528-023-10585-5. [PMID: 38228844 DOI: 10.1007/s10528-023-10585-5] [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: 02/08/2023] [Accepted: 11/01/2023] [Indexed: 01/18/2024]
Abstract
A handful of circular RNAs (circRNAs) associated with cancer progression have been indicated in esophageal squamous cell carcinoma (ESCC). The current study aimed to investigate the functional mechanism of circular RNA Fibronectin type III domain containing 3B (circ_FNDC3B) in ESCC. Circ_FNDC3B, FNDC3B, microRNA-136-5p (miR-136-5p) and mitogen-activated protein kinase 1 (MAPK1) were examined via the quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation was evaluated by Cell Counting Kit-8 (CCK-8) and colony formation assays. Transwell assay was performed to measure cell migration and invasion. Protein analysis was implemented by western blot. Cell apoptosis was assessed via flow cytometry. Target interaction was affirmed using dual-luciferase reporter assay. The function analysis of circ_FNDC3B in vivo was explored by xenograft models. The upregulation of circ_FNDC3B was detected in ESCC tissues and cells. Functionally, ESCC cell proliferation and metastasis were repressed but apoptosis was promoted by circ_FNDC3B knockdown. Besides, circ_FNDC3B silence inhibited ESCC progression through MAPK1 downregulation. Further target analysis identified miR-136-5p as a target of circ_FNDC3B and an upstream control of MAPK1. Additionally, the regulation of si-circ_FNDC3B in ESCC was also dependent on targeting miR-136-5p. Moreover, circ_FNDC3B targeted miR-136-5p to affect MAPK1 level. Tumorigenesis in vivo was also suppressed by downregulating circ_FNDC3B to regulate miR-136-5p/MAPK1 axis. Circ_FNDC3B downregulation impeded the development of ESCC via the mediation of miR-136-5p/MAPK1 axis. This report afforded a novel insight into the functional mechanism of circ_FNDC3B in ESCC.
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Affiliation(s)
- Yuwei Li
- Center of Medical Genetics, Northwest Women's and Children's Hospital, Xi'an, People's Republic of China
| | - Lieting Ma
- Department of Laboratory, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, Shaanxi, People's Republic of China.
| | - Peng Li
- Department of Laboratory, First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, Shaanxi, People's Republic of China.
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Wang K, Lu Q, Luo Y, Yu G, Wang Z, Lin J, Tan Z, Lao Y, Liu S, Yang H. Circ_MAPK9 promotes STAT3 and LDHA expression by silencing miR-642b-3p and affects the progression of hepatocellular carcinoma. Biol Direct 2024; 19:4. [PMID: 38163874 PMCID: PMC10759731 DOI: 10.1186/s13062-023-00442-1] [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: 08/27/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND Aberrant expression and activation of circular RNAs (circRNAs) are closely associated with various cancers. The role of circ_MAPK9 (hsa_circ_0001566) in cancer progression remains unknown. This study aims to investigate the function, mechanism and clinical significance of circ_MAPK9 in hepatocellular carcinoma (HCC). METHODS Circ_MAPK9 expression on the microarray of tumor from clinical HCC patients was detected by in situ hybridization (ISH). Circ_MAPK9 knockdown was achieved with siRNAs in SMMC-7721 and SK-Hep1 HCC cell lines. The biological function of circ_MAPK9 was verified in vitro by CCK8 test, colony formation assay, transwell assay, PI-Annexin V staining, and in vivo by xenograft tumor in nude mice. Fluorescent in situ hybridization (FISH), subcellular fractionation assay, a dual-luciferase reporter assay and rescue experiments were employed for further mechanistic investigation. RESULTS The expression of circ_MAPK9 was significantly up-regulated in HCC tissues and cells, which was found to be associated with poor prognosis. Patients with high expression of circ_MAPK9 had a shorter overall survival and disease-free survival in comparison to those with low circ_MAPK9 expression. Functional assays showed that circ_MAPK9 knockdown suppressed cellular proliferation, migration, invasion and tumor growth in vivo, and promoted apoptosis in HCC cells. Moreover, we found that circ_MAPK9 knockdown could inhibit aerobic glycolysis by decreasing the production of adenosine triphosphate (ATP) and lactic acid, which was mediated by lactate dehydrogenase (LDHA). Mechanistically, circ_MAPK9 functioned as ceRNA via sponging miR-642b-3p and alleviated the inhibitory effect of miR-642b-3p on its target signal transducer and activator of transcription 3 (STAT3) and LDHA, thereby leading to STAT3 activation and LDHA expression. CONCLUSIONS Circ_MAPK9, as an oncogene, promotes HCC growth and metastasis through miR-642b-3p/STAT3-LDHA axis. Circ_MAPK9 could serve as a potential biomarker for HCC poor prognosis and diagnosis.
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Affiliation(s)
- Kunyuan Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China
| | - Qianting Lu
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China
| | - Yufeng Luo
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China
| | - Ganxiang Yu
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China
| | - Zhilei Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China
| | - Jiaen Lin
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China
| | - Zhenlin Tan
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China
| | - Yueqiong Lao
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China
| | - Shiming Liu
- Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hui Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang East Road, Guangzhou, Guangdong, China.
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Tan G, Zheng S, Zhou B, Mo Z, Zhang Q, Zhang D, Li A, Liu X. Spleen tyrosine kinase facilitates the progression of papillary thyroid cancer regulated by the hsa_circ_0006417/miR-377-3p axis. ENVIRONMENTAL TOXICOLOGY 2024; 39:421-434. [PMID: 37792549 DOI: 10.1002/tox.23982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/20/2023] [Accepted: 09/18/2023] [Indexed: 10/06/2023]
Abstract
Papillary thyroid cancer (PTC) is a prevalent malignancy worldwide. Spleen tyrosine kinase (SYK) is a crucial enzyme that participates in various biological processes, including cancer progression. This study aims to uncover the biological function of SYK in PTC. SYK expression patterns in PTC were evaluated using quantitative real time polymerase chain reaction (qRT-PCR), immunohistochemistry (IHC), and western blot. Cell function assays were performed to assess the effects of SYK on PTC. Bioinformatics analysis was conducted to identify intriguing microRNA (miRNA) and circular RNA (circRNA). Dual-Luciferase Reporter or RNA immunoprecipitation assays were used to investigate the correlation among SYK, miR-377-3p, and hsa_circ_0006417. SYK was upregulated in PTC. Overexpression of SYK exhibited a positive correlation with tumor size, lymph node metastasis, and unfavorable disease-free survival. Functional assays revealed that SYK exerted tumorigenic effect on PTC cells through mTOR/4E-BP1 pathway. Mechanistically, hsa_circ_0006417 and miR-377-3p regulated SYK expression, offering modulating its tumor-promoting effects. Collectively, SYK acts as an oncogene in PTC through mTOR/4E-BP1 pathway, which is regulated by the hsa_circ_0006417/miR-377-3p axis, thereby providing a potential alternative for PTC treatment.
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Affiliation(s)
- Guangmou Tan
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Cancer Center, Southern Medical University, Guangzhou, China
- Department of Head and Neck Surgery, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Shiyang Zheng
- Department of Head and Neck Surgery, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Boxuan Zhou
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaohong Mo
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiong Zhang
- Department of Pathology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Donghui Zhang
- Department of Pathology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Aimin Li
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Cancer Center, Southern Medical University, Guangzhou, China
| | - Xinhui Liu
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Cancer Center, Southern Medical University, Guangzhou, China
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Shen M, Wu Y, Li L, Zhang L, Liu G, Wang R. CircMAP3K5 promotes cardiomyocyte apoptosis in diabetic cardiomyopathy by regulating miR-22-3p/DAPK2 Axis. J Diabetes 2024; 16:e13471. [PMID: 37735821 PMCID: PMC10809294 DOI: 10.1111/1753-0407.13471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/24/2023] [Accepted: 08/16/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND Diabetic cardiomyopathy (DCM) is one of the serious complications of the accumulated cardiovascular system in the long course of diabetes. To date, there is no effective treatment available for DCM. Circular RNA (circRNA) is a novel r2egulatory RNA that participates in a variety of cardiac pathological processes. However, the regulatory role of circular RNA MAP3K5 (circMAP3K5) in DCM is largely unclear. METHODS AND RESULTS Microarray analysis of DCM rats' heart circular RNAs was performed and the highly species-conserved circRNA mitogen-activated protein kinase kinase kinase 5 (circMAP3K5) was identified, which participates in DCM processes. High glucose-provoked cardiotoxicity leads to the up-regulation of circMAP3K5, which mechanistically contributes to cardiomyocyte cell death. Also, in high glucose-induced H9c2 cardiomyocytes, the level of apoptosis was significantly increased, as well as the expression of circMAP3K5. In contrast, the depletion of circMAP3K5 could reduce high glucose-induced apoptosis in cardiomyocytes. In terms of mechanism, circMAP3K5 acts as a miR-22-3p sponge and miR-22-3p directly target death-associated protein kinase 2 (DAPK2) in H9c2 cardiomyocytes, where in circMAP3K5 upregulates DAPK2 expression by targeting miR-22-3p. Moreover, we also found that miR-22-3p inhibitor and pcDNA DAPK2 could antagonize the protective effects brought by the depletion of circMAP3K5. CONCLUSION CircMAP3K5 is a highly conserved noncoding RNA that is upregulated during DCM process. We concluded that circMAP3K5 promotes high glucose-induced cardiomyocyte apoptosis by regulating the miR-22-3p/DAPK2 axis. The results of this study highlight a novel and translationally important circMAP3K5-based therapeutic approach for DCM.
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Affiliation(s)
- Ming Shen
- Department of Cardiovascular SurgeryThe First Medical Center of PLA General HospitalBeijingChina
- Department of CardiologyThe First Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Yuanbin Wu
- Department of EmergencyThe Seventh Medical Center of PLA General HospitalBeijingChina
| | - Libing Li
- Department of Cardiovascular SurgeryThe First Medical Center of PLA General HospitalBeijingChina
| | - Liyue Zhang
- Department of Cardiovascular SurgeryThe First Medical Center of PLA General HospitalBeijingChina
| | - Gang Liu
- Department of CardiologyThe First Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Rong Wang
- Department of Cardiovascular SurgeryThe First Medical Center of PLA General HospitalBeijingChina
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50
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Zarezadeh R, Abbasi K, Aboutalebi Vand Beilankouhi E, Navali N, Hakimi P, Fattahi A, Farzadi L. Programmed cell death 4: A novel player in the pathogenesis of polycystic ovary syndrome. Cell Biochem Funct 2024; 42:e3905. [PMID: 38115175 DOI: 10.1002/cbf.3905] [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: 09/28/2023] [Revised: 11/16/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a pathological condition recognized by menstrual cycle irregularities, androgen excess, and polycystic ovarian morphology, affecting a significant proportion of women of childbearing age and accounting for the most prevalent cause of anovulatory sterility. In addition, PCOS is frequently accompanied by metabolic and endocrine disturbances such as obesity, dyslipidemia, insulin resistance, and hyperinsulinemia, indicating the multiplicity of mechanisms implicated in the progression of PCOS. However, the exact pathogenesis of PCOS is yet to be elucidated. Programmed cell death 4 (PDCD4) is a ubiquitously expressed protein that contributes to the regulation of various cellular processes, including gene expression, cell cycle progression, proliferation, and apoptosis. Despite some disparities concerning its exact cellular effects, PDCD4 is generally characterized as a protein that inhibits cell cycle progression and proliferation and instead drives the cell into apoptosis. The apoptosis of granulosa cells (GCs) is speculated to take a major part in the occurrence and progression of PCOS by ceasing antral follicle development and compromising oocyte competence. Given the possible involvement of GC apoptosis in the progression of PCOS, as well as the contribution of PDCD4 to the regulation of cell apoptosis and the development of metabolic diseases, the current review aimed to discuss whether or how PDCD4 can play a role in the pathogenesis of PCOS by affecting GC apoptosis.
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Affiliation(s)
- Reza Zarezadeh
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khadijeh Abbasi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Nazli Navali
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parvin Hakimi
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Fattahi
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Laya Farzadi
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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