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Wu L, Xue X, He C, Lai Y, Tong L. Cell death‑related molecules and targets in the progression of urolithiasis (Review). Int J Mol Med 2024; 53:52. [PMID: 38666544 PMCID: PMC11090264 DOI: 10.3892/ijmm.2024.5376] [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: 03/05/2024] [Accepted: 04/02/2024] [Indexed: 05/04/2024] Open
Abstract
Urolithiasis is a high‑incidence disease caused by calcium oxalate (mainly), uric acid, calcium phosphate, struvite, apatite, cystine and other stones. The development of kidney stones is closely related to renal tubule cell damage and crystal adhesion and aggregation. Cell death, comprising the core steps of cell damage, can be classified into various types (i.e., apoptosis, ferroptosis, necroptosis and pyroptosis). Different crystal types, concentrations, morphologies and sizes cause tubular cell damage via the regulation of different forms of cell death. Oxidative stress caused by high oxalate or crystal concentrations is considered to be a precursor to a variety of types of cell death. In addition, complex crosstalk exists among numerous signaling pathways and their key molecules in various types of cell death. Urolithiasis is considered a metabolic disorder, and tricarboxylic acid cycle‑related molecules, such as citrate and succinate, are closely related to cell death and the inhibition of stone development. However, a literature review of the associations between kidney stone development, metabolism and various types of cell death is currently lacking, at least to the best of our knowledge. Thus, the present review summarizes the major advances in the understanding of regulated cell death and urolithiasis progression.
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Affiliation(s)
- Liping Wu
- Department of Pharmacy, Ganzhou People's Hospital, Ganzhou, Jiangxi 341099, P.R. China
| | - Xiaoyan Xue
- Department of Pharmacy, Ganzhou People's Hospital, Ganzhou, Jiangxi 341099, P.R. China
| | - Chengwu He
- Department of Urology, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong 518033, P.R. China
| | - Yongchang Lai
- Department of Urology, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong 518033, P.R. China
- Department of Pharmaceutical Management, School of Medical Business, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, P.R. China
| | - Lingfei Tong
- Department of Pharmacy, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi 330006, P.R. China
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Wei H, Li W, Yang M, Fang Q, Nian J, Huang Y, Wei Q, Huang Z, Liu G, Xu Z, Hu A, Pu J. METTL3/16-mediated m 6A modification of ZNNT1 promotes hepatocellular carcinoma progression by activating ZNNT1/osteopontin/S100A9 positive feedback loop-mediated crosstalk between macrophages and tumour cells. Clin Immunol 2024; 261:109924. [PMID: 38310994 DOI: 10.1016/j.clim.2024.109924] [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: 09/06/2023] [Accepted: 02/01/2024] [Indexed: 02/06/2024]
Abstract
Macrophages are the major components of tumour microenvironment, which play critical roles in tumour development. N6-methyladenosine (m6A) also contributes to tumour progression. However, the potential roles of m6A in modulating macrophages in hepatocellular carcinoma (HCC) are poorly understood. Here, we identified ZNNT1 as an HCC-related m6A modification target, which was upregulated and associated with poor prognosis of HCC. METTL3 and METTL16-mediated m6A modification contributed to ZNNT1 upregulation through stabilizing ZNNT1 transcript. ZNNT1 exerted oncogenic roles in HCC. Furthermore, ZNNT1 recruited and induced M2 polarization of macrophages via up-regulating osteopontin (OPN) expression and secretion. M2 Macrophages-recruited by ZNNT1-overexpressed HCC cells secreted S100A9, which further upregulated ZNNT1 expression in HCC cells via AGER/NF-κB signaling. Thus, this study demonstrates that m6A modification activated the ZNNT1/OPN/S100A9 positive feedback loop, which promoted macrophages recruitment and M2 polarization, and enhanced malignant features of HCC cells. m6A modification-triggered ZNNT1/OPN/S100A9 feedback loop represents potential therapeutic target for HCC.
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Affiliation(s)
- Huamei Wei
- Department of Pathology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Wenchuan Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Meng Yang
- Graduate College of Youjiang Medical University for Nationalities, Baise, China
| | - Quan Fang
- Graduate College of Youjiang Medical University for Nationalities, Baise, China
| | - Jiahui Nian
- Graduate College of Youjiang Medical University for Nationalities, Baise, China
| | - Youguan Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, China
| | - Qing Wei
- Graduate College of Youjiang Medical University for Nationalities, Baise, China
| | - Zihua Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, China
| | - Guoman Liu
- Graduate College of Youjiang Medical University for Nationalities, Baise, China
| | - Zuoming Xu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Anbin Hu
- Department of Organ Transplantation, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian Pu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China; The Guangxi Clinical Medical Research Center for Hepatobiliary Diseases, No. 18 Zhongshan two Road, Baise 533000, China.
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Cao W, Zhang J, Yu S, Gan X, An R. N-acetylcysteine regulates oxalate induced injury of renal tubular epithelial cells through CDKN2B/TGF-β/SMAD axis. Urolithiasis 2024; 52:46. [PMID: 38520518 DOI: 10.1007/s00240-023-01527-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 12/26/2023] [Indexed: 03/25/2024]
Abstract
This study was aimed to investigate the preventive effects of N-acetyl-L-cysteine (NAC) against renal tubular cell injury induced by oxalate and stone formation and further explore the related mechanism. Transcriptome sequencing combined with bioinformatics analysis were performed to identify differentially expressed gene (DEG) and related pathways. HK-2 cells were pretreated with or without antioxidant NAC/with or silencing DEG before exposed to sodium oxalate. Then, the cell viability, oxidative biomarkers of superoxidase dismutase (SOD) and malondialdehyde (MDA), apoptosis and cell cycle were measured through CCK8, ELISA and flow cytometry assay, respectively. Male SD rats were separated into control group, hyperoxaluria (HOx) group, NAC intervention group, and TGF-β/SMAD pathway inhibitor group. After treatment, the structure changes and oxidative stress and CaOx crystals deposition were evaluated in renal tissues by H&E staining, immunohistochemical and Pizzolato method. The expression of TGF-β/SMAD pathway related proteins (TGF-β1, SMAD3 and SMAD7) were determined by Western blot in vivo and in vitro. CDKN2B is a DEG screened by transcriptome sequencing combined with bioinformatics analysis, and verified by qRT-PCR. Sodium oxalate induced declined HK-2 cell viability, in parallel with inhibited cellular oxidative stress and apoptosis. The changes induced by oxalate in HK-2 cells were significantly reversed by NAC treatment or the silencing of CDKN2B. The cell structure damage and CaOx crystals deposition were observed in kidney tissues of HOx group. Meanwhile, the expression levels of SOD and 8-OHdG were detected in kidney tissues of HOx group. The changes induced by oxalate in kidney tissues were significantly reversed by NAC treatment. Besides, expression of SMAD7 was significantly down-regulated, while TGF-β1 and SMAD3 were accumulated induced by oxalate in vitro and in vivo. The expression levels of TGF-β/SMAD pathway related proteins induced by oxalate were reversed by NAC. In conclusion, we found that NAC could play an anti-calculus role by mediating CDKN2B/TGF-β/SMAD axis.
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Affiliation(s)
- Wei Cao
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Jingbo Zhang
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Shiliang Yu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 YouZheng Street, HarbinHarbin, Heilongjiang, 150001, China
| | - Xiuguo Gan
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 YouZheng Street, HarbinHarbin, Heilongjiang, 150001, China
| | - Ruihua An
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 YouZheng Street, HarbinHarbin, Heilongjiang, 150001, China.
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Wang G, Mi J, Bai J, He Q, Li X, Wang Z. Non-Coding RNAs in Kidney Stones. Biomolecules 2024; 14:213. [PMID: 38397450 PMCID: PMC10886984 DOI: 10.3390/biom14020213] [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: 01/01/2024] [Revised: 02/04/2024] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
Nephrolithiasis is a major public health concern associated with high morbidity and recurrence. Despite decades of research, the pathogenesis of nephrolithiasis remains incompletely understood, and effective prevention is lacking. An increasing body of evidence suggests that non-coding RNAs, especially microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), play a role in stone formation and stone-related kidney injury. MiRNAs have been studied quite extensively in nephrolithiasis, and a plethora of specific miRNAs have been implicated in the pathogenesis of nephrolithiasis, involving remarkable changes in calcium metabolism, oxalate metabolism, oxidative stress, cell-crystal adhesion, cellular autophagy, apoptosis, and macrophage (Mp) polarization and metabolism. Emerging evidence suggests a potential for miRNAs as novel diagnostic biomarkers of nephrolithiasis. LncRNAs act as competing endogenous RNAs (ceRNAs) to bind miRNAs, thereby modulating mRNA expression to participate in the regulation of physiological mechanisms in kidney stones. Small interfering RNAs (siRNAs) may provide a novel approach to kidney stone prevention and treatment by treating related metabolic conditions that cause kidney stones. Further investigation into these non-coding RNAs will generate novel insights into the mechanisms of renal stone formation and stone-related renal injury and might lead to new strategies for diagnosing and treating this disease.
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Affiliation(s)
| | | | | | | | - Xiaoran Li
- Department of Urology, Institute of Urology, Gansu Nephro-Urological Clinical Center, Key Laboratory of Urological Diseases in Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China; (G.W.); (J.M.); (J.B.); (Q.H.)
| | - Zhiping Wang
- Department of Urology, Institute of Urology, Gansu Nephro-Urological Clinical Center, Key Laboratory of Urological Diseases in Gansu Province, Lanzhou University Second Hospital, Lanzhou 730030, China; (G.W.); (J.M.); (J.B.); (Q.H.)
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Wei H, Huang L, Lu Q, Huang Z, Huang Y, Xu Z, Li W, Pu J. N 6-Methyladenosine-Modified LEAWBIH Drives Hepatocellular Carcinoma Progression through Epigenetically Activating Wnt/β-Catenin Signaling. J Hepatocell Carcinoma 2023; 10:1991-2007. [PMID: 37954496 PMCID: PMC10637240 DOI: 10.2147/jhc.s433070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 10/18/2023] [Indexed: 11/14/2023] Open
Abstract
Purpose N6-methyladenosine (m6A) modification plays an important role in regulating RNA maturation, stability, and translation. Thus, m6A modification is involved in various pathophysiological processes including hepatocellular carcinoma (HCC). However, the direct contribution of m6A modifications to RNA function in HCC remains unclear. Here, we identified LEAWBIH (long non-coding RNA epigenetically activating Wnt/β-catenin signalling in HCC) as an m6A-modified long non-coding RNA (lncRNA) and investigated the effects of m6A on the function of LEAWBIH in HCC. Methods Quantitative polymerase chain reaction was performed to measure the gene expression in tissues and cells. The level of m6A modification was detected using a methylated RNA immunoprecipitation assay and single-base elongation- and ligation-based qPCR amplification method. Cell proliferation was evaluated using the Glo cell viability and CCK-8 assays. Cell migration and invasion were evaluated using Transwell migration and invasion assays. The mechanisms of m6A modified LEAWBIH were investigated using chromatin isolation by RNA purification, chromatin immunoprecipitation, and dual-luciferase reporter assays. Results LEAWBIH was highly expressed and correlated with poor survival in HCC patients. LEAWBIH was identified as a m6A-modified transcript. m6A modification increased LEAWBIH transcript stability. The m6A modification level of LEAWBIH was increased in HCC, and a high m6A modification level of LEAWBIH predicted poor survival. LEAWBIH promotes HCC cell proliferation, migration, and invasion in an m6A modification-dependent manner. Mechanistic investigations revealed that m6A-modified LEAWBIH activated Wnt/β-catenin signaling. m6A-modified LEAWBIH binds to the m6A reader YTHDC1, which further interacts with and recruits H3K9me2 demethylase KDM3B to CTNNB1 promoter, leading to H3K9me2 demethylation and CTNNB1 transcription activation. Functional rescue assays showed that blocking Wnt/β-catenin signaling abolished the role of LEAWBIH in HCC. Conclusion m6A-modified LEAWBIH exerts oncogenic effects in HCC by epigenetically activating Wnt/β-catenin signaling, highlighting m6A-modified LEAWBIH as a promising therapeutic target for HCC.
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Affiliation(s)
- Huamei Wei
- Department of Pathology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Lizheng Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Qi Lu
- Graduate College of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Zheng Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Yanyan Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Zuoming Xu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Wenchuan Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Jian Pu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
- Guangxi Clinical Medical Research Center of Hepatobiliary Disease, Baise, People’s Republic of China
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Tan C, Huang Y, Huang Z, Ning Y, Huang L, Wu X, Lu Y, Wei H, Pu J. N 6-Methyladenosine-Modified ATP8B1-AS1 Exerts Oncogenic Roles in Hepatocellular Carcinoma via Epigenetically Activating MYC. J Hepatocell Carcinoma 2023; 10:1479-1495. [PMID: 37701563 PMCID: PMC10493143 DOI: 10.2147/jhc.s415318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 07/06/2023] [Indexed: 09/14/2023] Open
Abstract
Purpose N6-methyladenosine (m6A) modification has shown critical roles in regulating mRNA fate. Non-coding RNAs also have important roles in various diseases, including hepatocellular carcinoma (HCC). However, the potential influences of m6A modification on non-coding RNAs are still unclear. In this study, we identified a novel m6A-modified ATP8B1-AS1 and aimed to investigate the effects of m6A on the expression and role of ATP8B1-AS1 in HCC. Methods qPCR was performed to measure the expression of related genes. The correlation between gene expression and prognosis was analyzed using public database. m6A modification level was measured using MeRIP and single-base elongation- and ligation-based qPCR amplification method. The roles of ATP8B1-AS1 in HCC were investigated using in vitro and in vivo functional assays. The mechanisms underlying the roles of ATP8B1-AS1 were investigated by ChIRP and ChIP assays. Results ATP8B1-AS1 is highly expressed in HCC tissues and cell lines. High expression of ATP8B1-AS1 is correlated with poor overall survival of HCC patients. ATP8B1-AS1 is m6A modified and the 792 site of ATP8B1-AS1 is identified as an m6A modification site. m6A modification increases the stability of ATP8B1-AS1 transcript. m6A modification level of ATP8B1-AS1 is increased in HCC tissues and cell lines, and correlated with poor overall survival of HCC patients. ATP8B1-AS1 promotes HCC cell proliferation, migration, and invasion, which were abolished by the mutation of m6A-modified 792 site. Mechanistic investigation revealed that m6A-modified ATP8B1-AS1 interacts with and recruits m6A reader YTHDC1 and histone demethylase KDM3B to MYC promoter region, leading to the reduction of H3K9me2 level at MYC promoter region and activation of MYC transcription. Functional rescue assays showed that depletion of MYC largely abolished the oncogenic roles of ATP8B1-AS1. Conclusion m6A modification level of ATP8B1-AS1 is increased and correlated with poor prognosis in HCC. m6A-modified ATP8B1-AS1 exerts oncogenic roles in HCC via epigenetically activating MYC expression.
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Affiliation(s)
- Chuan Tan
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Yanyan Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Zheng Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Yuanjia Ning
- Graduate College of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Lizheng Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Xianjian Wu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Yuan Lu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Huamei Wei
- Department of Pathology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
| | - Jian Pu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, People’s Republic of China
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Pu J, Xu Z, Huang Y, Nian J, Yang M, Fang Q, Wei Q, Huang Z, Liu G, Wang J, Wu X, Wei H. N 6 -methyladenosine-modified FAM111A-DT promotes hepatocellular carcinoma growth via epigenetically activating FAM111A. Cancer Sci 2023; 114:3649-3665. [PMID: 37400994 PMCID: PMC10475779 DOI: 10.1111/cas.15886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/22/2023] [Accepted: 05/30/2023] [Indexed: 07/05/2023] Open
Abstract
As an epitranscriptomic modulation manner, N6 -methyladenosine (m6 A) modification plays important roles in various diseases, including hepatocellular carcinoma (HCC). m6 A modification affects the fate of RNAs. The potential contributions of m6 A to the functions of RNA still need further investigation. In this study, we identified long noncoding RNA FAM111A-DT as an m6 A-modified RNA and confirmed three m6 A sites on FAM111A-DT. The m6 A modification level of FAM111A-DT was increased in HCC tissues and cell lines, and increased m6 A level was correlated with poor survival of HCC patients. m6 A modification increased the stability of FAM111A-DT transcript, whose expression level showed similar clinical relevance to that of the m6 A level of FAM111A-DT. Functional assays found that only m6 A-modified FAM111A-DT promoted HCC cellular proliferation, DNA replication, and HCC tumor growth. Mutation of m6 A sites on FAM111A-DT abolished the roles of FAM111A-DT. Mechanistic investigations found that m6 A-modified FAM111A-DT bound to FAM111A promoter and also interacted with m6 A reader YTHDC1, which further bound and recruited histone demethylase KDM3B to FAM111A promoter, leading to the reduction of the repressive histone mark H3K9me2 and transcriptional activation of FAM111A. The expression of FAM111A was positively correlated with the m6 A level of FAM111A-DT, and the expression of methyltransferase complex, YTHDC1, and KDM3B in HCC tissues. Depletion of FAM111A largely attenuated the roles of m6 A-modified FAM111A-DT in HCC. In summary, the m6 A-modified FAM111A-DT/YTHDC1/KDM3B/FAM111A regulatory axis promoted HCC growth and represented a candidate therapeutic target for HCC.
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Affiliation(s)
- Jian Pu
- Department of Hepatobiliary SurgeryAffiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
| | - Zuoming Xu
- Department of Hepatobiliary SurgeryAffiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
| | - Youguan Huang
- Graduate College of Youjiang Medical University for NationalitiesBaiseChina
| | - Jiahui Nian
- Graduate College of Youjiang Medical University for NationalitiesBaiseChina
| | - Meng Yang
- Graduate College of Youjiang Medical University for NationalitiesBaiseChina
| | - Quan Fang
- Graduate College of Youjiang Medical University for NationalitiesBaiseChina
| | - Qing Wei
- Graduate College of Youjiang Medical University for NationalitiesBaiseChina
| | - Zihua Huang
- Graduate College of Youjiang Medical University for NationalitiesBaiseChina
| | - Guoman Liu
- Graduate College of Youjiang Medical University for NationalitiesBaiseChina
| | - Jianchu Wang
- Department of Hepatobiliary SurgeryAffiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
| | - Xianjian Wu
- Graduate College of Youjiang Medical University for NationalitiesBaiseChina
| | - Huamei Wei
- Department of PathologyAffiliated Hospital of Youjiang Medical University for NationalitiesBaiseChina
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Li Y, Chen C, Liu HL, Zhang ZF, Wang CL. LARRPM restricts lung adenocarcinoma progression and M2 macrophage polarization through epigenetically regulating LINC00240 and CSF1. Cell Mol Biol Lett 2022; 27:91. [PMID: 36221069 PMCID: PMC9552444 DOI: 10.1186/s11658-022-00376-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 08/17/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) are critical regulators in lung adenocarcinoma (LUAD). M2-type tumor-associated macrophages (TAMs) also play oncogenic roles in LUAD. However, the involvement of lncRNAs in TAM activation is still largely unknown. METHODS The expressions of LARRPM, LINC00240 and CSF1 were determined by RT-qPCR. The regulation of LINC00240 and CSF1 by LARRPM was investigated by RNA-protein pull-down, RNA immunoprecipitation, chromatin immunoprecipitation and bisulfite DNA sequencing. In vitro and in vivo gain- and loss-of-function assays were performed to investigate the roles of LARRPM. RESULTS The lncRNA LARRPM was expressed at low levels in LUAD tissues and cells. The low expression of LARRPM was correlated with advanced stage and poor survival of patients with LUAD. Functional experiments revealed that LARRPM suppressed LUAD cell proliferation, migration and invasion, and promoted apoptosis. LARRPM also repressed macrophage M2 polarization and infiltration. Taken together, LARRPM significantly restricted LUAD progression in vivo. Mechanistically, LARRPM bound and recruited DNA demethylase TET1 to the promoter of its anti-sense strand gene LINC00240, leading to a decrease in DNA methylation level of the LINC00240 promoter and transcriptional activation of LINC00240. Functional rescue assays suggested that the lncRNA LINC00240 was responsible for the roles of LARRPM in the malignant behavior of LUAD cells. LARRPM decreased the binding of TET1 to the CSF1 promoter, resulting in increased DNA methylation of the CSF1 promoter and transcriptional repression of CSF1, which is responsible for the roles of LARRPM in macrophage M2 polarization and infiltration. The TAMs educated by LUAD cells exerted oncogenic roles, which was negatively regulated by LARRPM expressed in LUAD cells. CONCLUSIONS LARRPM restricts LUAD progression through repressing both LUAD cell and macrophages. These data shed new insights into the regulation of LUAD progression by lncRNAs and provide data on the potential utility of LARRPM as a target for LUAD treatment.
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Affiliation(s)
- Yue Li
- Department of Lung Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Lung Cancer Center, Tianjin, 300060, China
| | - Chen Chen
- Department of Lung Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Lung Cancer Center, Tianjin, 300060, China
| | - Hai-Lin Liu
- Department of Lung Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Lung Cancer Center, Tianjin, 300060, China
| | - Zhen-Fa Zhang
- Department of Lung Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Lung Cancer Center, Tianjin, 300060, China
| | - Chang-Li Wang
- Department of Lung Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Lung Cancer Center, Tianjin, 300060, China.
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Dai YZ, Liu YD, Li J, Chen MT, Huang M, Wang F, Yang QS, Yuan JH, Sun SH. METTL16 promotes hepatocellular carcinoma progression through downregulating RAB11B-AS1 in an m 6A-dependent manner. Cell Mol Biol Lett 2022; 27:41. [PMID: 35596159 PMCID: PMC9123709 DOI: 10.1186/s11658-022-00342-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/04/2022] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The molecular mechanisms driving hepatocellular carcinoma (HCC) remain largely unclear. As one of the major epitranscriptomic modifications, N6-methyladenosine (m6A) plays key roles in HCC. The aim of this study was to investigate the expression, roles, and mechanisms of action of the RNA methyltransferase methyltransferase-like protein 16 (METTL16) in HCC. METHODS The expression of METTL16 and RAB11B-AS1 was determined by RT-qPCR. The regulation of RAB11B-AS1 by METTL16 was investigated by RNA immunoprecipitation (RIP), methylated RIP (MeRIP), and RNA stability assays. In vitro and in vivo gain- and loss-of-function assays were performed to investigate the roles of METTL16 and RAB11B-AS1. RESULTS METTL16 was upregulated in HCC, and its increased expression was correlated with poor prognosis of HCC patients. METTL16 promoted HCC cellular proliferation, migration, and invasion, repressed HCC cellular apoptosis, and promoted HCC tumoral growth in vivo. METTL16 directly bound long noncoding RNA (lncRNA) RAB11B-AS1, induced m6A modification of RAB11B-AS1, and decreased the stability of RAB11B-AS1 transcript, leading to the downregulation of RAB11B-AS1. Conversely to METTL16, RAB11B-AS1 is downregulated in HCC, and its decreased expression was correlated with poor prognosis of patients with HCC. Furthermore, the expression of RAB11B-AS1 was negatively correlated with METTL16 in HCC tissues. RAB11B-AS1 repressed HCC cellular proliferation, migration, and invasion, promoted HCC cellular apoptosis, and inhibited HCC tumoral growth in vivo. Functional rescue assays revealed that overexpression of RAB11B-AS1 reversed the oncogenic roles of METTL16 in HCC. CONCLUSIONS This study identified the METTL16/RAB11B-AS1 regulatory axis in HCC, which represented novel targets for HCC prognosis and treatment.
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Affiliation(s)
- Yun-Zhang Dai
- Department of Medical Genetics, Naval Medical University, Shanghai, 200433, China
| | - Yong-da Liu
- Department of Medical Genetics, Naval Medical University, Shanghai, 200433, China
| | - Jie Li
- Department of Medical Genetics, Naval Medical University, Shanghai, 200433, China
| | - Mei-Ting Chen
- Department of Medical Genetics, Naval Medical University, Shanghai, 200433, China
| | - Mei Huang
- Department of Medical Genetics, Naval Medical University, Shanghai, 200433, China
| | - Fang Wang
- Department of Medical Genetics, Naval Medical University, Shanghai, 200433, China
| | - Qing-Song Yang
- Department of Interventional Radiology, Changhai Hospital, Naval Medical University, Shanghai, 20043, China.
| | - Ji-Hang Yuan
- Department of Medical Genetics, Naval Medical University, Shanghai, 200433, China.
| | - Shu-Han Sun
- Department of Medical Genetics, Naval Medical University, Shanghai, 200433, China.
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Ye Z, Gui D, Wang X, Wang J, Fu J. LncRNA SNHG1 promotes renal cell carcinoma progression through regulation of HMGA2 via sponging miR‐103a. J Clin Lab Anal 2022; 36:e24422. [PMID: 35466471 PMCID: PMC9169200 DOI: 10.1002/jcla.24422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 11/10/2022] Open
Affiliation(s)
- Zhi‐hua Ye
- Department of Urology and Hubei Key Laboratory of Kidney Disease Pathogenesis and Interventio Huangshi Central Hospital Edong Healthcare Group Affiliated Hospital of Hubei Polytechnic University Huangshi China
| | - Ding‐wen Gui
- Department of Urology and Hubei Key Laboratory of Kidney Disease Pathogenesis and Interventio Huangshi Central Hospital Edong Healthcare Group Affiliated Hospital of Hubei Polytechnic University Huangshi China
| | - Xiao‐ying Wang
- Department of Urology and Hubei Key Laboratory of Kidney Disease Pathogenesis and Interventio Huangshi Central Hospital Edong Healthcare Group Affiliated Hospital of Hubei Polytechnic University Huangshi China
| | - Jing Wang
- Department of Urology and Hubei Key Laboratory of Kidney Disease Pathogenesis and Interventio Huangshi Central Hospital Edong Healthcare Group Affiliated Hospital of Hubei Polytechnic University Huangshi China
| | - Jin‐lun Fu
- Department of Urology and Hubei Key Laboratory of Kidney Disease Pathogenesis and Interventio Huangshi Central Hospital Edong Healthcare Group Affiliated Hospital of Hubei Polytechnic University Huangshi China
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