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Wang Y, Zhang J, Shi H, Wang M, Yu D, Fu M, Qian Y, Zhang X, Ji R, Wang S, Gu J, Zhang X. M2 Tumor-Associated Macrophages-Derived Exosomal MALAT1 Promotes Glycolysis and Gastric Cancer Progression. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309298. [PMID: 38639382 PMCID: PMC11199979 DOI: 10.1002/advs.202309298] [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: 11/30/2023] [Revised: 04/01/2024] [Indexed: 04/20/2024]
Abstract
M2-polarized tumor-associated macrophages (M2 TAMs) promote cancer progression. Exosomes mediate cellular communication in the tumor microenvironment (TME). However, the roles of exosomes from M2 TAMs in gastric cancer progression are unclear. Herein, it is reported that M2 TAMs-derived exosomes induced aerobic glycolysis in gastric cancer cells and enhanced their proliferation, metastasis, and chemoresistance in a glycolysis-dependent manner. It is identified that MALAT1 (metastasis-associated lung adenocarcinoma transcript 1) is enriched in M2 TAM exosomes and confirmed that MALAT1 transfer from M2 TAMs to gastric cancer cells via exosomes mediates this effect. Mechanistically, MALAT1 interacted with the δ-catenin protein and suppressed its ubiquitination and degradation by β-TRCP. In addition, MALAT1 upregulated HIF-1α expression by acting as a sponge for miR-217-5p. The activation of β-catenin and HIF-1α signaling pathways by M2 TAM exosomes collectively led to enhanced aerobic glycolysis in gastric cancer cells. Finally, a dual-targeted inhibition of MALAT1 in both gastric cancer cells and macrophages by exosome-mediated delivery of siRNA remarkably suppressed gastric cancer growth and improved chemosensitivity in mouse tumor models. Taken together, these results suggest that M2 TAMs-derived exosomes promote gastric cancer progression via MALAT1-mediated regulation of glycolysis. The findings offer a potential target for gastric cancer therapy.
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Affiliation(s)
- Yanzheng Wang
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Jiahui Zhang
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Hui Shi
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Maoye Wang
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Dan Yu
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Min Fu
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Yu Qian
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Xiaoxin Zhang
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Runbi Ji
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
| | - Shouyu Wang
- Jiangsu Key Laboratory of Molecular MedicineMedical School of Nanjing UniversityNanjing210000China
| | - Jianmei Gu
- Department of Clinical Laboratory MedicineNantong Tumor Hospital/Affiliated Tumor Hospital of Nantong UniversityNantong226300China
| | - Xu Zhang
- Department of Laboratory MedicineSchool of MedicineJiangsu UniversityZhenjiang212013China
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Li Y, Liu J, Yao D, Guo Z, Jiang X, Zhang C, Qu L, Liu Y, Hu Y, Gao L, Wang Y, Xu Y. Elevated aerobic glycolysis driven by p62-mTOR axis promotes arsenic-induced oncogenic phenotypes in human mammary epithelial cells. Arch Toxicol 2024; 98:1369-1381. [PMID: 38485781 DOI: 10.1007/s00204-024-03709-2] [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: 10/04/2023] [Accepted: 02/15/2024] [Indexed: 03/27/2024]
Abstract
Chronic arsenic exposure is considered to increase the risk of breast cancer. p62 is a multifunctional adaptor protein that controls myriad cellular processes and is overexpressed in breast cancer tissues. Although previous studies have indicated the involvement of p62 accumulation in arsenic tumorigenesis, the underlying mechanism remains obscure. Here, we found that 0.1 µM or 0.5 µM arsenite exposure for 24 weeks induced oncogenic phenotypes in human mammary epithelial cells. Elevated aerobic glycolysis, cell proliferation capacity, and activation of p62-mTOR pathway, as indicated by increased protein levels of p62, phosphorylated-mTOR (p-mTOR) and hypoxia-inducible factor 1α (HIF1α), were observed in chronically arsenite-exposed cells, and of note in advance of the onset of oncogenic phenotypes. Moreover, p62 silencing inhibited acquisition of oncogenic phenotypes in arsenite-exposed cells. The protein levels of p-mTOR and HIF1α, as well as aerobic glycolysis and cell proliferation, were suppressed by p62 knockdown. In addition, re-activation of p‑mTOR reversed the inhibitory effects of p62 knockdown. Collectively, our data suggest that p62 exerts an oncogenic role via mTORC1 activation and acts as a key player in glucose metabolism during arsenite-induced malignant transformation, which provides a new mechanistic clue for the arsenite carcinogenesis.
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Affiliation(s)
- Yongfang Li
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China
- School of Public Health, China Medical University, Shenyang, People's Republic of China
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China
| | - Jiao Liu
- School of Public Health, China Medical University, Shenyang, People's Republic of China
| | - Dianqi Yao
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China
- School of Public Health, China Medical University, Shenyang, People's Republic of China
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China
| | - Zijun Guo
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China
- School of Public Health, China Medical University, Shenyang, People's Republic of China
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China
| | - Xuheng Jiang
- School of Public Health, China Medical University, Shenyang, People's Republic of China
| | - Chengwen Zhang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China
- School of Public Health, China Medical University, Shenyang, People's Republic of China
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China
| | - Litong Qu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China
- School of Public Health, China Medical University, Shenyang, People's Republic of China
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China
| | - Yuyan Liu
- Department of Clinical Epidemiology, the Fourth Affiliated Hospital, China Medical University, Shenyang, People's Republic of China
| | - Yuxin Hu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China
- School of Public Health, China Medical University, Shenyang, People's Republic of China
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China
| | - Lanyue Gao
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China
- School of Public Health, China Medical University, Shenyang, People's Republic of China
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China
| | - Yi Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China
- School of Public Health, China Medical University, Shenyang, People's Republic of China
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China
| | - Yuanyuan Xu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, People's Republic of China.
- School of Public Health, China Medical University, Shenyang, People's Republic of China.
- Key Laboratory of Toxic and Biological Effects of Arsenic (China Medical University), Liaoning Province, Shenyang, People's Republic of China.
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Li SN, Li MX, Guo WW, Zhang LR, Ding YH, Wu XJ. LINC02561 promotes metastasis in HCC via HIF1-α/NDRG1/UPF1 axis. Gene 2024; 896:148033. [PMID: 38013127 DOI: 10.1016/j.gene.2023.148033] [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: 08/28/2023] [Revised: 11/14/2023] [Accepted: 11/23/2023] [Indexed: 11/29/2023]
Abstract
In the entire world, hepatocellular carcinoma (HCC) is one of the most frequent cancers that lead to death. Experiments on the function of long non-coding RNAs in the emergence of malignancies, including HCC, are ongoing. As a crucial RNA monitoring mechanism in eucaryotic cells, nonsense-mediated mRNA decay (NMD) can recognize and destroy mRNAs, which has an premature termination codons (PTC) in the open reading frame to prevent harmful buildup of truncated protein products in the cells. Nonsense transcript regulator 1 (Up-frameshift suppressor 1, UPF1), as a highly conserved RNA helicase and ATPase, plays a key role in NMD. Our laboratory screened out the highly expressed lncRNA LINC02561 in HCC from the TCGA database. Further research found that LINC02561 enhanced the invasion and transition abilities of liver cancer cells by regulating the protein N-Myc downstream regulated 1 (NDRG1). Hypoxia inducible factor-1 (HIF-1α) can bonded to LINC02561 promoters under hypoxic conditions, thereby promoting the upregulation of LINC02561 expression in liver cancer cells. LINC02561 competes with NDRG1 mRNA to bind UPF1, thereby preventing the degradation of NDRG1 mRNA to facilitate NDRG1 protein level. Taken together, the HIF1α-LINC02561-UPF1-NDRG1 regulatory axis could be an entirely novel target of liver cancer-related treatment.
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Affiliation(s)
- Sheng-Nan Li
- China University of Mining and Technology, China
| | - Mei-Xiang Li
- China University of Mining and Technology, China
| | - Wen-Wen Guo
- The Affiliated Hospital of China University of Mining and Technology, Department of Radiation Oncology, Xuzhou Municipal First People's Hospital, Xuzhou 221002, China
| | | | - Yun-He Ding
- The Affiliated Hospital of China University of Mining and Technology, Department of Radiation Oncology, Xuzhou Municipal First People's Hospital, Xuzhou 221002, China
| | - Xiao-Jin Wu
- The Affiliated Hospital of China University of Mining and Technology, Department of Radiation Oncology, Xuzhou Municipal First People's Hospital, Xuzhou 221002, China.
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Yin F, Zhang X, Zhang Z, Zhang M, Yin Y, Yang Y, Gao Y. ERK/PKM2 Is Mediated in the Warburg Effect and Cell Proliferation in Arsenic-Induced Human L-02 Hepatocytes. Biol Trace Elem Res 2024; 202:493-503. [PMID: 37237135 DOI: 10.1007/s12011-023-03706-z] [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: 02/10/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023]
Abstract
This study aimed to investigate the potential role of pyruvate kinase M2 (PKM2) and extracellular regulated protein kinase (ERK) in arsenic-induced cell proliferation. L-02 cells were treated with 0.2 and 0.4 μmol/L As3+, glycolysis inhibitor (2-deoxy-D-glucose,2-DG), ERK inhibitor [1,4-diamino-2,3-dicyano-1,4-bis(2-aminophenylthio)-butadiene, U0126] or transfected with PKM2 plasmid. Cell viability, proliferation, lactate acid production, and glucose intake capacity were determined by CCK-8 assay, EdU assay, lactic acid kit and 2-deoxy-2-[(7-nitro-2,1,3-benzoxadiazol-4-yl) amino]-D-glucose (2-NBDG) uptake kit, respectively. Also, levels of PKM2, phospho-PKM2S37, glucose transporter protein 1 (GLUT1), lactate dehydrogenase A (LDHA), ERK, and phospho-ERK were detected using Western blot and the subcellular localization of PKM2 in L-02 cells was detected by immunocytochemistry (ICC). Treatment with 0.2 and 0.4 μmol/L As3+ for 48 h increased the viability and proliferation of L-02 cells, the proportion of 2-NBDG+ cell and lactic acid in the culture medium, and GLUT1, LDHA, PKM2, phospho-PKM2S37, and phospho-ERK levels and PKM2 in nucleus. Compared with the 0.2 μmol/L As3+ treatment group, the lactic acid in the culture medium, cell proliferation and cell viability, and the expression of GLUT1 and LDHA were reduced in the group co-treated with siRNA-PKM2 and arsenic or in the group co-treated with U0126. Moreover, the arsenic-increased phospho-PKM2S37/PKM2 was decreased by U0126. Therefore, ERK/PKM2 plays a key role in the Warburg effect and proliferation of L-02 cells induced by arsenic, and also might be involved in arsenic-induced upregulation of GLUT1 and LDHA. This study provides a theoretical basis for further elucidating the carcinogenic mechanism of arsenic.
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Affiliation(s)
- Fanshuo Yin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, No.157 Baojian Road, Nangang District, Harbin, 150081, Heilongjiang Province, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, 150081, Heilongjiang Province, China
| | - Xin Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, No.157 Baojian Road, Nangang District, Harbin, 150081, Heilongjiang Province, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, 150081, Heilongjiang Province, China
| | - Zaihong Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, No.157 Baojian Road, Nangang District, Harbin, 150081, Heilongjiang Province, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, 150081, Heilongjiang Province, China
| | - Meichen Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, No.157 Baojian Road, Nangang District, Harbin, 150081, Heilongjiang Province, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, 150081, Heilongjiang Province, China
| | - Yunyi Yin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, No.157 Baojian Road, Nangang District, Harbin, 150081, Heilongjiang Province, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, 150081, Heilongjiang Province, China
| | - Yanmei Yang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, No.157 Baojian Road, Nangang District, Harbin, 150081, Heilongjiang Province, China.
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, 150081, Heilongjiang Province, China.
| | - Yanhui Gao
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, No.157 Baojian Road, Nangang District, Harbin, 150081, Heilongjiang Province, China.
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, 150081, Heilongjiang Province, China.
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5
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Wang K, Lu Y, Li H, Zhang J, Ju Y, Ouyang M. Role of long non-coding RNAs in metabolic reprogramming of gastrointestinal cancer cells. Cancer Cell Int 2024; 24:15. [PMID: 38184562 PMCID: PMC10770979 DOI: 10.1186/s12935-023-03194-0] [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: 07/11/2023] [Accepted: 12/26/2023] [Indexed: 01/08/2024] Open
Abstract
Metabolic reprogramming, which is recognized as a hallmark of cancer, refers to the phenomenon by which cancer cells change their metabolism to support their increased biosynthetic demands. Tumor cells undergo substantial alterations in metabolic pathways, such as glycolysis, oxidative phosphorylation, pentose phosphate pathway, tricarboxylic acid cycle, fatty acid metabolism, and amino acid metabolism. Latest studies have revealed that long non-coding RNAs (lncRNAs), a group of non-coding RNAs over 200 nucleotides long, mediate metabolic reprogramming in tumor cells by regulating the transcription, translation and post-translational modification of metabolic-related signaling pathways and metabolism-related enzymes through transcriptional, translational, and post-translational modifications of genes. In addition, lncRNAs are closely related to the tumor microenvironment, and they directly or indirectly affect the proliferation and migration of tumor cells, drug resistance and other processes. Here, we review the mechanisms of lncRNA-mediated regulation of glucose, lipid, amino acid metabolism and tumor immunity in gastrointestinal tumors, aiming to provide more information on effective therapeutic targets and drug molecules for gastrointestinal tumors.
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Affiliation(s)
- Kang Wang
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde Foshan), Shunde, Foshan, 528300, Guangdong, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510080, Guangdong, China
| | - Yan Lu
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde Foshan), Shunde, Foshan, 528300, Guangdong, China
| | - Haibin Li
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde Foshan), Shunde, Foshan, 528300, Guangdong, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510080, Guangdong, China
| | - Jun Zhang
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde Foshan), Shunde, Foshan, 528300, Guangdong, China
- Guangdong Medical University, Dongguan, 523808, China
| | - Yongle Ju
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde Foshan), Shunde, Foshan, 528300, Guangdong, China.
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510080, Guangdong, China.
| | - Manzhao Ouyang
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, The First People's Hospital of Shunde Foshan), Shunde, Foshan, 528300, Guangdong, China.
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510080, Guangdong, China.
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6
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Moradi MT, Fadaei R, Sharafkhaneh A, Khazaie H, Gozal D. The role of lncRNAs in intermittent hypoxia and sleep Apnea: A review of experimental and clinical evidence. Sleep Med 2024; 113:188-197. [PMID: 38043330 DOI: 10.1016/j.sleep.2023.11.014] [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: 09/27/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 12/05/2023]
Abstract
In this narrative review, we present a comprehensive assessment on the putative roles of long non-coding RNAs (lncRNAs) in intermittent hypoxia (IH) and sleep apnea. Collectively, the evidence from cell culture, animal, and clinical research studies points to the functional involvement of lncRNAs in the pathogenesis, diagnosis, and potential treatment strategies for this highly prevalent disorder. Further research is clearly warranted to uncover the mechanistic pathways and to exploit the therapeutic potential of lncRNAs, thereby improving the management and outcomes of patients suffering from sleep apnea.
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Affiliation(s)
- Mohammad-Taher Moradi
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Fadaei
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Pharmacology, Vanderbilt University, Nashville, TN, USA
| | - Amir Sharafkhaneh
- Sleep Disorders and Research Center, Baylor College of Medicine, Houston, TX, USA
| | - Habibolah Khazaie
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - David Gozal
- Joan C. Edwards School of Medicine, Marshall University, 1600 Medical Center Dr, Huntington, WV, 25701, USA.
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Yin F, Zhang Y, Zhang X, Zhang M, Zhang Z, Yin Y, Xu H, Yang Y, Gao Y. The ROS/NF-κB/HK2 axis is involved in the arsenic-induced Warburg effect in human L-02 hepatocytes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:150-165. [PMID: 36264688 DOI: 10.1080/09603123.2022.2134559] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Arsenic has been identified as a carcinogen, although the molecular mechanism underlying itscarcinogenesis has not been fully elucidated. To date, only a few studies have attempted to confirm a direct link between oxidative stress and the Warburg effect . This study demonstrated that 0.2 μmol/L As3+ induced the Warburg effect to contribute to abnormal proliferation of L-02 cells, that was mediated by upregulation of hexokinase 2 (HK2), a key enzyme in glycolysis. Further study indicated that arsenic-induced accumulation of reactive oxygen species (ROS) activated the nuclear factor kappa B (NF-κB) signaling pathway by phosphorylation of p65 at the Ser536 and Ser276 sites, leading to upregulated expression of HK2. We therefore concluded that the ROS/NF-κB/HK2 axis contributes to the Warburg effect and cell proliferation induced by low doses of arsenic.AbbreviationsROS, Reactive oxygen species; NAC, N-acetyl-L-cysteine; 2-DG, 2-deoxy-D-glucose; 2-NBDG, 2-Deoxy-2-[(7-nitro-2,1,3-benzoxadiazol-4-yl)amino]-D-glucose.
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Affiliation(s)
- Fanshuo Yin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Ying Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xin Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Meichen Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Zaihong Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yunyi Yin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Haili Xu
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
- Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health of P. R. China, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yanmei Yang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yanhui Gao
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang, China
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8
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Wang W, Zhang A. HIF-1α Mediates Arsenic-Induced Metabolic Reprogramming in Lung Bronchial Epithelial Cells. Biol Trace Elem Res 2023; 201:2284-2293. [PMID: 35715716 DOI: 10.1007/s12011-022-03315-2] [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: 04/21/2022] [Accepted: 06/03/2022] [Indexed: 11/26/2022]
Abstract
Arsenic is a common environmental pollutant that can cause damage to multiple systems and organs in the body. The lungs are particularly sensitive to arsenic exposure, and respiratory disease is thought to be the leading cause of death from arsenic poisoning. Our previous study found that human bronchial epithelial (HBE) cells treated with NaAsO2 exhibited mitochondrial dysfunction accompanied by elevated HIF-1α; however, the molecular mechanism was unclear. The aim of the current study was to confirm the role of HIF-1α in arsenic-induced mitochondrial damage. The results of this study indicated that NaAsO2 treatment induced mitochondrial ultrastructure impairment and depolarization of the mitochondrial membrane potential. Furthermore, NaAsO2 induced a significant decrease in basal respiration, maximal respiration, spare respiratory capacity, ATP (adenosine-triphosphate)-associated mitochondrial respiration and proton leakage in HBE cells (P < 0.05), while promoting an increase in ECAR (extracellular acidification rate) values. To clarify the role of HIF-1α, the effect of HIF-1α siRNA on NaAsO2-induced glycolysis in HBE cells was examined, and the results showed that HIF-1α siRNA reversed the NaAsO2-induced elevation in PKM2 (Tyr105), HIF-1α, GLUT1 and HK2 protein expression and decreased the NaAsO2-mediated glycolysis level, glycolytic capacity and glycolytic reserve. These findings suggest that targeting metabolic dysregulation has significant implications for targeting arsenic-induced lung injury and that HIF-1α is an exciting new therapeutic target for the treatment of arsenic-induced lung injury.
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Affiliation(s)
- Wenjuan Wang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, People's Republic of China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, People's Republic of China.
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9
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Wang T, Xie ZH, Wang L, Luo H, Zhang J, Dong WT, Zheng XH, Ye C, Tian XB, Liu G, Zhu XS, Li YL, Kang QL, Zhang F, Peng WX. LncAABR07053481 inhibits bone marrow mesenchymal stem cell apoptosis and promotes repair following steroid-induced avascular necrosis. Commun Biol 2023; 6:365. [PMID: 37012358 PMCID: PMC10070412 DOI: 10.1038/s42003-023-04661-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 03/03/2023] [Indexed: 04/05/2023] Open
Abstract
The osteonecrotic area of steroid-induced avascular necrosis of the femoral head (SANFH) is a hypoxic microenvironment that leads to apoptosis of transplanted bone marrow mesenchymal stem cells (BMSCs). However, the underlying mechanism remains unclear. Here, we explore the mechanism of hypoxic-induced apoptosis of BMSCs, and use the mechanism to improve the transplantation efficacy of BMSCs. Our results show that the long non-coding RNA AABR07053481 (LncAABR07053481) is downregulated in BMSCs and closely related to the degree of hypoxia. Overexpression of LncAABR07053481 could increase the survival rate of BMSCs. Further exploration of the downstream target gene indicates that LncAABR07053481 acts as a molecular "sponge" of miR-664-2-5p to relieve the silencing effect of miR-664-2-5p on the target gene Notch1. Importantly, the survival rate of BMSCs overexpressing LncAABR07053481 is significantly improved after transplantation, and the repair effect of BMSCs in the osteonecrotic area is also improved. This study reveal the mechanism by which LncAABR07053481 inhibits hypoxia-induced apoptosis of BMSCs by regulating the miR-664-2-5p/Notch1 pathway and its therapeutic effect on SANFH.
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Affiliation(s)
- Tao Wang
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Zhi-Hong Xie
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Lei Wang
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Hong Luo
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Jian Zhang
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Wen-Tao Dong
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Xiao-Han Zheng
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Chuan Ye
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Xiao-Bin Tian
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Gang Liu
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China
| | - Xue-Song Zhu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215000, P.R. China
| | - Yan-Lin Li
- Department of Sports Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650000, P.R. China
| | - Qing-Lin Kang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, P.R. China
| | - Fei Zhang
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China.
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China.
| | - Wu-Xun Peng
- Department of Orthopedics and Traumatology, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China.
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, P.R. China.
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10
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Dou J, Thangaraj SV, Puttabyatappa M, Elangovan VR, Bakulski K, Padmanabhan V. Developmental programming: Adipose depot-specific regulation of non-coding RNAs and their relation to coding RNA expression in prenatal testosterone and prenatal bisphenol-A -treated female sheep. Mol Cell Endocrinol 2023; 564:111868. [PMID: 36708980 PMCID: PMC10069610 DOI: 10.1016/j.mce.2023.111868] [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: 12/14/2022] [Revised: 01/19/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023]
Abstract
Inappropriate developmental exposure to steroids is linked to metabolic disorders. Prenatal testosterone excess or bisphenol A (BPA, an environmental estrogen mimic) leads to insulin resistance and adipocyte disruptions in female lambs. Adipocytes are key regulators of insulin sensitivity. Metabolic tissue-specific differences in insulin sensitivity coupled with adipose depot-specific changes in key mRNAs, were previously observed with prenatal steroid exposure. We hypothesized that depot-specific changes in the non-coding RNA (ncRNA) - regulators of gene expression would account for the direction of changes seen in mRNAs. Non-coding RNA (lncRNA, miRNA, snoRNA, snRNA) from various adipose depots of prenatal testosterone and BPA-treated animals were sequenced. Adipose depot-specific changes in the ncRNA that are consistent with the depot-specific mRNA expression in terms of directionality of changes and functional implications in insulin resistance, adipocyte differentiation and cardiac hypertrophy were found. Importantly, the adipose depot-specific ncRNA changes were model-specific and mutually exclusive, suggestive of different regulatory entry points in this regulation.
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Affiliation(s)
- John Dou
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
| | | | | | | | - Kelly Bakulski
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA.
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11
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Lou Q, Chen F, Li B, Zhang M, Yin F, Liu X, Zhang Z, Zhang X, Fan C, Gao Y, Yang Y. Malignant growth of arsenic-transformed cells depends on activated Akt induced by reactive oxygen species. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2023; 33:284-298. [PMID: 34974760 DOI: 10.1080/09603123.2021.2023113] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
Arsenic is an identified carcinogen for humans.In this study, chronic exposure of human hepatocyte L-02 to low-doses of inorganic arsenic caused cell malignant proliferation. Meanwhile, compared with normal L-02 cells, arsenic-transformed malignant cells, L-02-As displayed more ROS and significantly higher Cyclin D1 expression as well as aerobic glycolysis. Moreover, Akt activation is followed by the upregulation of Cyclin D1 and HK2 expression in L-02-As cells, since inhibition of Akt activity by Ly294002 attenuated the colony formation in soft agar and decreased the levels of Cyclin D1 and HK2. In addition, scavenging of ROS by NAC resulted in a decreased expression of phospho-Akt, HK2 and Cyclin D1, and attenuates the ability of anchorage-independent growth ofL-02-As cells, suggested that ROS mediated the Akt activation in L-02-As cells. In summary, our results demonstrated that ROS contributes to the malignant phenotype of arsenic-transformed human hepatocyte L-02-As via the activation of Akt pathway.
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Affiliation(s)
- Qun Lou
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Fuxun Chen
- Yantai Center for Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Yantai, Shandong, China
| | - Bingyang Li
- Yantai Center for Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Yantai, Shandong, China
| | - Meichen Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Fanshuo Yin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Xiaona Liu
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Zaihong Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Xin Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Chenlu Fan
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Yanhui Gao
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Yanmei Yang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, Heilongjiang Province, China
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12
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Reprogramming of glycolysis by chemical carcinogens during tumor development. Semin Cancer Biol 2022; 87:127-136. [PMID: 36265806 DOI: 10.1016/j.semcancer.2022.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/07/2022]
Abstract
Indiscriminate usage and mismanagement of chemicals in the agricultural and industrial sectors have contaminated different environmental compartments. Exposure to these persistent and hazardous pollutants like heavy metals, endocrine disruptors, aromatic hydrocarbons, and pesticides can result in various health adversities, including cancer. Chemical carcinogens follow a similar pattern of carcinogenesis, like oxidative stress, chromosomal aberration, DNA double-strand break, mismatch repair, and misregulation of oncogenic and/or tumor suppressors. Out of several cancer-associated endpoints, cellular metabolic homeostasis is the commonest to be deregulated upon chemical exposure. Chemical carcinogens hamper glycolytic reprogramming to fuel the malignant transformation of the cells and/or promote cancer progression. Several regulators like Akt, ERK, Ras, c-Myc, HIF-1α, and p53 regulate glycolysis in chemical-induced carcinogenesis. However, the deregulation of the anabolic biochemistry of glucose during chemical-induced carcinogenesis remains to be uncovered. This review comprehensively covers the environmental chemical-induced glycolytic shift during carcinogenesis and its mechanism. The focus is also to fill the major gaps associated with understanding the fairy tale between environmental carcinogens and metabolic reprogramming. Although evidence from studies regarding glycolytic reprogramming in chemical carcinogenesis provides valuable insights into cancer therapy, exposure to a mixture of toxicants and their mechanism of inducing carcinogenesis still needs to be studied.
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13
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Islam R, Zhao L, Wang Y, Lu-Yao G, Liu LZ. Epigenetic Dysregulations in Arsenic-Induced Carcinogenesis. Cancers (Basel) 2022; 14:cancers14184502. [PMID: 36139662 PMCID: PMC9496897 DOI: 10.3390/cancers14184502] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Arsenic is a crucial environmental metalloid whose high toxicity levels negatively impact human health. It poses significant health concerns to millions of people in developed and developing countries such as the USA, Canada, Bangladesh, India, China, and Mexico by enhancing sensitivity to various types of diseases, including cancers. However, how arsenic causes changes in gene expression that results in heinous conditions remains elusive. One of the proposed essential mechanisms that still has seen limited research with regard to causing disease upon arsenic exposure is the dysregulation of epigenetic components. In this review, we have extensively summarized current discoveries in arsenic-induced epigenetic modifications in carcinogenesis and angiogenesis. Importantly, we highlight the possible mechanisms underlying epigenetic reprogramming through arsenic exposure that cause changes in cell signaling and dysfunctions of different epigenetic elements.
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Chen Y, Yang H, Chen S, Lu Z, Li B, Jiang T, Xuan M, Ye R, Liang H, Liu X, Liu Q, Tang H. SIRT1 regulated hexokinase-2 promoting glycolysis is involved in hydroquinone-enhanced malignant progression in human lymphoblastoid TK6 cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113757. [PMID: 35714482 DOI: 10.1016/j.ecoenv.2022.113757] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Reprogramming of cellular metabolism is a vital event during tumorigenesis. The role of glycolysis in malignant progression promoted by hydroquinone (HQ), one of the metabolic products of benzene, remains to be understood. Recently, we reported the overexpression of sirtuin 1 (SIRT1) in HQ-enhanced malignant progression of TK6 cells and hypothesized that SIRT1 might contribute to glycolysis and favor tumorigenesis. Our data showed that acute exposure of TK6 cells to HQ for 48 h inhibited glycolysis, as indicated by reduction in glucose consumption, lactate production, hexokinase activity, and the expression of SIRT1 and glycolytic enzymes, including HIF-1α, hexokinase-2 (HK-2), ENO-1, glucose transporter 1 (Glut-1), and lactic dehydrogenase A (LDHA). Knockdown of SIRT1 or inhibition of glycolysis using the glycolytic inhibitor 2-deoxy-D-glucose (2-DG) downregulated the levels of SIRT1 and glycolytic enzymes and significantly enhanced HQ-induced cell apoptosis, although knockdown of SIRT1 or 2-DG alone had little effect on apoptosis. Furthermore, immunofluorescence and Co-IP assays demonstrated that SIRT1 regulated the expression of HK-2, and HQ treatment caused a decrease in SIRT1 and HK-2 binding to mitochondria. Importantly, we found that glycolysis was promoted with increasing HQ treatment weeks. Long-term HQ exposure increased the expression of SIRT1 and several glycolytic enzymes and promoted malignant cell progression. Moreover, compared with the PBS group, glucose consumption and lactate production increased after 10 weeks of HQ exposure, and the protein levels of SIRT1 and HK-2 were increased after 15 weeks of HQ exposure, while those of Glut-1, ENO-1, and LDHA were elevated. In addition, SIRT1 knockdown HQ 19 cells exhibited decreased lactate production, glucose consumption, glycolytic enzymes expression, cell growth, and tumor formation in nude mice. Our findings identify the high expression of SIRT1 as a strong oncogenic driver that positively regulates HK-2 and promotes glycolysis in HQ-accelerated malignant progression of TK6 cells.
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Affiliation(s)
- Yuting Chen
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Hui Yang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Shaoyun Chen
- Department of Obstetrics, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen 518102, China
| | - Zhaohong Lu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Boxin Li
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Tikeng Jiang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Mei Xuan
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Ruifang Ye
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Hairong Liang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Xiaoshan Liu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China
| | - Qizhan Liu
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Huanwen Tang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Guangdong 523808, China.
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Jiang Q, Di Q, Shan D, Xu Q. Nonylphenol inhibited HIF-1alpha regulated aerobic glycolysis and induced ROS mediated apoptosis in rat Sertoli cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113822. [PMID: 35777343 DOI: 10.1016/j.ecoenv.2022.113822] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/23/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
Nonylphenol (NP) is an endocrine disruptor with reproductive toxicity, which can induce apoptosis of Sertoli cells (SCs). SCs have a high aerobic glycolytic flux to ensure sufficient lactate for germ cells as central energy metabolite, and hypoxia-inducible factors 1alpha (HIF-1α) is a major regulator of glycolysis. This study aimed to investigate whether NP can alter HIF-1α-regulated aerobic glycolysis metabolism and thus induce apoptosis in rat SCs. The results revealed that cell viability, intracellular and extracellular lactate levels, the expression of Hk2, Ldha and Mct4, and the protein levels of HIF-1α, HK2, LDHA and MCT4 were decreased significantly when rat SCs exposed to 20 and 30 μM NP for 24 h. Compared with the 30 μM NP group, the protein levels of HIF-1α, HK2 and LDHA, the expression of Hk2 and Ldha and intracellular lactate levels were increased in 30 μM NP and 125 μM cobalt chloride (CoCl2, inhibitor of HIF-1α proteasome-mediated degradation) co-treated group. Furthermore, the elevation of reactive oxygen species (ROS) and apoptosis induced by 30 μM NP were also reversed. In summary, exposure to NP inhibited the ability of SCs to produce and secrete lactate. Meanwhile, NP exposure could lead to a decrease in HIF-1α thereby inhibiting aerobic glycolysis in rat SCs, disrupting intracellular homeostasis and further inducing ROS-mediated apoptosis. This research is the first to explore the NP toxicity on SCs function with respect to nutrition support to germ cells, and provide new evidence on the inhibition of aerobic glycolysis inducing ROS-mediated apoptosis in SCs.
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Affiliation(s)
- Qianqian Jiang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Qiannan Di
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Dandan Shan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Qian Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China.
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16
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Yang J, Liu F, Wang Y, Qu L, Lin A. LncRNAs in tumor metabolic reprogramming and immune microenvironment remodeling. Cancer Lett 2022; 543:215798. [PMID: 35738332 DOI: 10.1016/j.canlet.2022.215798] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/06/2022] [Accepted: 06/15/2022] [Indexed: 11/02/2022]
Abstract
Evidence accumulated over the past decade has verified that long non-coding RNAs (lncRNAs) exert important functions in multiple cell programs. As a novel class of cellular regulatory molecules, lncRNAs interact with different molecules, such as DNA, RNA or proteins, depending on their subcellular distribution, to modulate gene transcription and kinase cascades. It has been widely clarified that lncRNAs play important roles in modulating metabolic reprogramming and reshaping the immune landscape and serve as hinges bridging tumor metabolism and anti-tumor immunity. Given these facts, lncRNAs, as putative regulators of tumor initiation and progression, have attracted extensive attention in recent years. In this review, we summarized the current research progress on the role of lncRNAs in tumor metabolic reprogramming and tumor-immune microenvironment remodeling, and conclude with our laboratory's contributions in advancing the clinical applications of lncRNAs.
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Affiliation(s)
- Jiecheng Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang, 310058, China
| | - Fangzhou Liu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang, 310058, China
| | - Ying Wang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang, 310058, China
| | - Lei Qu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang, 310058, China
| | - Aifu Lin
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang, 310058, China; Breast Center of the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China; International School of Medicine, International Institutes of Medicine, The 4th Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, 322000, China; ZJU-QILU Joint Research Institute, Hangzhou, Zhejiang, 310058, China.
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17
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Major Role for Cellular MicroRNAs, Long Noncoding RNAs (lncRNAs), and the Epstein-Barr Virus-Encoded BART lncRNA during Tumor Growth
In Vivo. mBio 2022; 13:e0065522. [PMID: 35435703 PMCID: PMC9239068 DOI: 10.1128/mbio.00655-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This study assessed the effects of Epstein-Barr virus (EBV) and one form of virally encoded BART long noncoding RNAs (lncRNAs) on cellular expression in epithelial cells grown in vitro and as tumors in vivo determined by high-throughput RNA sequencing of mRNA and small RNAs. Hierarchical clustering based on gene expression distinguished the cell lines from the tumors and distinguished the EBV-positive tumors and the BART tumors from the EBV-negative tumors. EBV and BART expression also induced specific expression changes in cellular microRNAs (miRs) and lncRNAs. Multiple known and predicted targets of the viral miRs, the induced cellular miRs, and lncRNAs were identified in the altered gene set. The changes in expression in vivo indicated that the suppression of growth pathways in vivo reflects increased expression of cellular miRs in all tumors. In the EBV and BART tumors, many of the targets of the induced miRs were not changed and the seed sequences of the nonfunctional miRs were found to have homologous regions within the BART lncRNA. The inhibition of these miR effects on known targets suggests that these induced miRs have reduced function due to sponging by the BART lncRNA. This composite analysis identified the effects of EBV on cellular miRs and lncRNAs with a functional readout through identification of the simultaneous effects on gene expression. Major shifts in gene expression in vivo are likely mediated by effects on cellular noncoding RNAs. Additionally, a predicted property of the BART lncRNA is to functionally inhibit the induced cellular miRs.
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Wang Q, Chen W, Zhang B, Gao Z, Zhang Q, Deng H, Han L, Shen XL. Perfluorooctanoic acid induces hepatocellular endoplasmic reticulum stress and mitochondrial-mediated apoptosis in vitro via endoplasmic reticulum-mitochondria communication. Chem Biol Interact 2022; 354:109844. [PMID: 35123991 DOI: 10.1016/j.cbi.2022.109844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/24/2022] [Accepted: 01/31/2022] [Indexed: 11/25/2022]
Abstract
Perfluorooctanoic acid (PFOA) is a persistent organic pollutant that is widely distributed in the natural environment. Cohort study showed that PFOA-producing workers displayed a significant increase for mortality of liver cancer and liver cirrhosis. However, the underlying mechanism of PFOA-induced hepatotoxicity is far from clear. In this research, cell viability, apoptosis rate, reactive oxygen species, mitochondrial membrane potential (ΔΨm), calcium ion levels, and protein expressions of human liver L02 cells in response to PFOA were determined. Results indicated that a 24 h-treatment with 64 and 256 μM PFOA could remarkably induce mitochondrial-mediated apoptosis via initiating the vicious cycle between endoplasmic reticulum stress and oxidative stress, thereby increasing the level of calcium ion and decreasing the level of ΔΨm, simultaneously elevating the protein expressions of Cyclophilin D (CYPD), Bcl-2 homologous antagonist/killer (Bak), Bcl-2-associated X protein (Bax), Bcl-2-like protein 11 (Bim), cytochrome C (Cyt-C), 78 kDa glucose-regulated protein (GRP78), CCAAT/enhancer-binding protein (C/EBP) homologous protein (CHOP), and thioredoxin-interacting protein (TXNIP), while inhibiting the protein expression of tumor necrosis factor receptor-associated protein 1 (TRAP1), Lon protease 1 (Lonp1), Pro-caspase-9, B-cell lymphoma-2 (Bcl-2), and Sigma 1-type opioid receptor (Sig-1R) (p < 0.05). To sum up, PFOA-induced hepatocellular endoplasmic reticulum stress and mitochondrial-mediated apoptosis in vitro was regulated by endoplasmic reticulum (ER)-mitochondria communication via mitochondria-associated ER membranes (MAMs).
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Affiliation(s)
- Qian Wang
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
| | - Wenying Chen
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
| | - Boyang Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, PR China.
| | - Zilu Gao
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
| | - Qipeng Zhang
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
| | - Huiqiong Deng
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
| | - Lingyun Han
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
| | - Xiao Li Shen
- School of Public Health, Zunyi Medical University, Zunyi, 563000, Guizhou, PR China.
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Ding Y, Zhen Z, Nisar MA, Ali F, Din RU, Khan M, Mughal TA, Alam G, Liu L, Saleem MZ. Sesquiterpene Lactones Attenuate Paclitaxel Resistance Via Inhibiting MALAT1/STAT3/ FUT4 Axis and P-Glycoprotein Transporters in Lung Cancer Cells. Front Pharmacol 2022; 13:795613. [PMID: 35281907 PMCID: PMC8909900 DOI: 10.3389/fphar.2022.795613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/03/2022] [Indexed: 01/10/2023] Open
Abstract
Paclitaxel resistance is a challenging factor in chemotherapy resulting in poor prognosis and cancer recurrence. Signal transducer and activator of transcription factor 3 (STAT3), a key transcription factor, performs a critical role in cancer development, cell survival and chemoresistance, while its inactivation overwhelms drug resistance in numerous cancer types including lung cancer. Additionally, the fucosyltransferase 4 (FUT4) is a crucial enzyme in post-translational modification of cell-surface proteins involved in various pathological conditions such as tumor multidrug resistance (MDR). The P-glycoprotein (P-GP) is the well-known ABC transporter member that imparts drug resistance in different cancer types, most notably paclitaxel resistance in lung cancer cells. LncRNA-MALAT1 exerts a functional role in the cancer development as well as the drug resistance and is linked with STAT3 activation and activity of FUT4. Moreover, STAT3-mediated induction of P-GP is well-documented. Natural compounds of Sesquiterpene Lactone (SL) family are well-known for their anticancer properties with particular emphasis over STAT3 inhibitory capabilities. In this study, we explored the positive correlation of MALAT1 with STAT3 and FUT4 activity in paclitaxel resistant A549 (A549/T) lung cancer cells. Additionally, we investigated the anticancer activity of two well-known members of SLs, alantolactone (ALT) and Brevilin A (Brv-A), in A549/T lung cancer cells. ALT and Brv-A induced apoptosis in A549/T cells. Furthermore, these two natural SLs suppressed MALAT1 expression, STAT3 activation, and FUT4 and P-GP expression which are the hallmarks for paclitaxel resistance in A549 lung cancer cells. The inhibition of MALAT1 enhanced the competence of these SLs members significantly, which accounted for the growth inhibition as well as anti-migratory and anti-invasive effects of ALT and Brv-A. These findings suggest SLs to be the promising agents for overcoming paclitaxel resistance in A549 lung cancer cells.
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Affiliation(s)
- Yaming Ding
- The Second Hospital of Jilin University, Changchun, China
| | - Zhang Zhen
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | | | - Farman Ali
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Riaz Ud Din
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Muhammad Khan
- Institute of Zoology, University of the Punjab, Lahore, Pakistan
| | - Tafail Akbar Mughal
- Medical Toxicology Laboratory, Department of Zoology, Women University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Gulzar Alam
- Faculty of Rehabilitation and Allied Health Sciences, Riphah International University, Islamabad, Pakistan
| | - Linlin Liu
- The Second Hospital of Jilin University, Changchun, China
| | - Muhammad Zubair Saleem
- College of Basic Medical Sciences, Dalian Medical University, Dalian, China
- Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, School of Pharmacy, Fujian Medical University, Fuzhou, China
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20
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The Epithelial-Mesenchymal Transition at the Crossroads between Metabolism and Tumor Progression. Int J Mol Sci 2022; 23:ijms23020800. [PMID: 35054987 PMCID: PMC8776206 DOI: 10.3390/ijms23020800] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 12/12/2022] Open
Abstract
The transition between epithelial and mesenchymal phenotype is emerging as a key determinant of tumor cell invasion and metastasis. It is a plastic process in which epithelial cells first acquire the ability to invade the extracellular matrix and migrate into the bloodstream via transdifferentiation into mesenchymal cells, a phenomenon known as epithelial–mesenchymal transition (EMT), and then reacquire the epithelial phenotype, the reverse process called mesenchymal–epithelial transition (MET), to colonize a new organ. During all metastatic stages, metabolic changes, which give cancer cells the ability to adapt to increased energy demand and to withstand a hostile new environment, are also important determinants of successful cancer progression. In this review, we describe the complex interaction between EMT and metabolism during tumor progression. First, we outline the main connections between the two processes, with particular emphasis on the role of cancer stem cells and LncRNAs. Then, we focus on some specific cancers, such as breast, lung, and thyroid cancer.
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21
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Ruan Y, Fang X, Guo T, Liu Y, Hu Y, Wang X, Hu Y, Gao L, Li Y, Pi J, Xu Y. Metabolic reprogramming in the arsenic carcinogenesis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 229:113098. [PMID: 34952379 DOI: 10.1016/j.ecoenv.2021.113098] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/06/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Chronic exposure to arsenic has been associated with a variety of cancers with the mechanisms undefined. Arsenic exposure causes alterations in metabolites in bio-samples. Recent research progress on cancer biology suggests that metabolic reprogramming contributes to tumorigenesis. Therefore, metabolic reprogramming provides a new clue for the mechanisms of arsenic carcinogenesis. In the present manuscript, we review the latest findings in reprogramming of glucose, lipids, and amino acids in response to arsenic exposure. Most studies focused on glucose reprogramming and found that arsenic exposure enhanced glycolysis. However, in vivo studies observed "reverse Warburg effect" in some cases due to the complexity of the disease evolution and microenvironment. Arsenic exposure has been reported to disturb lipid deposition by inhibiting lipolysis, and induce serine-glycine one-carbon pathway. As a dominant mechanism for arsenic toxicity, oxidative stress is considered to link with metabolism reprogramming. Few studies analyzed the causal relationship between metabolic reprogramming and arsenic-induced cancers. Metabolic alterations may vary with exposure doses and periods. Identifying metabolic alterations common among humans and experiment models with human-relevant exposure characteristics may guide future investigations.
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Affiliation(s)
- Yihui Ruan
- Group of Chronic Disease and Environmental Genomics, School of Public Health, China Medical University, P.R. China
| | - Xin Fang
- Group of Chronic Disease and Environmental Genomics, School of Public Health, China Medical University, P.R. China
| | - Tingyue Guo
- Group of Chronic Disease and Environmental Genomics, School of Public Health, China Medical University, P.R. China
| | - Yiting Liu
- Group of Chronic Disease and Environmental Genomics, School of Public Health, China Medical University, P.R. China
| | - Yu Hu
- Group of Chronic Disease and Environmental Genomics, School of Public Health, China Medical University, P.R. China
| | - Xuening Wang
- Group of Chronic Disease and Environmental Genomics, School of Public Health, China Medical University, P.R. China
| | - Yuxin Hu
- Experimental Teaching Center, School of Public Health, China Medical University, P.R. China
| | - Lanyue Gao
- Experimental Teaching Center, School of Public Health, China Medical University, P.R. China
| | - Yongfang Li
- The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, China Medical University, P.R. China
| | - Jingbo Pi
- The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, China Medical University, P.R. China; Program of Environmental Toxicology, School of Public Health, China Medical University, P.R. China
| | - Yuanyuan Xu
- Group of Chronic Disease and Environmental Genomics, School of Public Health, China Medical University, P.R. China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, China Medical University, P.R. China.
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22
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Hsa_circ_0004287 inhibits macrophage-mediated inflammation in an N6-methyladenosine-dependent manner in atopic dermatitis and psoriasis. J Allergy Clin Immunol 2021; 149:2021-2033. [PMID: 34953789 DOI: 10.1016/j.jaci.2021.11.024] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/03/2021] [Accepted: 11/26/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Circular RNA (circRNA) was reported to involve in various diseases; however, its role in atopic dermatitis (AD) or psoriasis remains unclear.background Objective: We sought to determine the differential expression profiles of circRNAs in peripheral blood mononuclear cells (PBMCs) between healthy controls and AD patients, and explore the mechanisms underlying the effects of circRNAs on the pathogenesis of AD. METHODS The differential expression profiles of circRNAs were analyzed by circRNA microarray. In vitro function and mechanisms by which circRNAs regulate macrophage-mediated inflammation were detected by RT-qPCR, western blotting, RNA stability assay, immunoprecipitation, enzyme-linked immunosorbent assay (ELISA), and methylated RNA immunoprecipitation (MeRIP) assay. In vivo roles of circRNAs were determined in 2,4-dinitrochlorobenzene (DNCB)-induced dermatitis and imiquimod (IMQ)-induced psoriasis mouse model. RESULTS We identified a functional unknown circRNA hsa_circ_0004287 from 88750 circRNAs, which was upregulated in PBMCs of both AD and psoriasis patients, and mainly expressed by macrophages under inflammatory conditions. hsa_circ_0004287 inhibited M1 macrophage activation in vitro, and macrophage-specific overexpression of hsa_circ_0004287 alleviated skin inflammation in both AD- and psoriasis-like mice. Mechanistically, hsa_circ_0004287 reduced the stability of its host gene metastasis associated lung adenocarcinoma transcript 1 (MALAT1) by competitively binding to IGF2BP3 with MALAT1 in an N6-methyladenosine (m6A)-dependent manner. Lower levels of MALAT1 promoted the ubiquitination degradation of S100A8/S100A9, thereby impeding p38/MAPK phosphorylation and macrophage-mediated inflammation.results CONCLUSION: Hsa_circ_0004287 inhibits M1 macrophage activation in an m6A-dependent manner in AD and psoriasis, and may serve as a general therapeutic candidate for AD and psoriasis. CONCLUSION
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23
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Wang PS, Wang Z, Yang C. Dysregulations of long non-coding RNAs - The emerging "lnc" in environmental carcinogenesis. Semin Cancer Biol 2021; 76:163-172. [PMID: 33823237 PMCID: PMC8487435 DOI: 10.1016/j.semcancer.2021.03.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 02/09/2023]
Abstract
Long non-coding RNAs (lncRNAs) refer to a class of RNA molecules that are more than 200 nucleotides in length and usually lack protein-coding capacity. LncRNAs play important roles in regulating gene expression as well as many aspects of normal physiological processes. Dysregulations of lncRNA expressions and functions are considered to be critically involved in the development and progression of many diseases especially cancer. The lncRNA research in the field of cancer biology over the past decade reveals that a large number of lncRNAs are dysregulated in various types of cancer and that dysregulated lncRNAs may play important roles in cancer initiation, metastasis and therapeutic responses. Metal carcinogens and other common environmental carcinogens such as polycyclic aromatic hydrocarbons, fine particular matters, cigarette smoke, ultraviolet and ionizing radiation are important cancer etiology factors. However, the mechanisms of how metal carcinogens and other common environmental carcinogen exposures initiate cancer and promote cancer progression remain largely unknown. Accumulating evidence show that exposure to metal carcinogens and other common environmental carcinogens dysregulate lncRNA expression in various model systems, which may offer novel mechanistic insights for environmental carcinogenesis. This review will first provide a brief introduction about lncRNA biology and the mechanisms of lncRNA functions, followed by summarizing and discussing recent studies about lncRNA dysregulation by metal carcinogen and other common environment carcinogen exposures and the potential roles of dysregulated lncRNAs in environmental carcinogenesis. A perspective for future studies in this emerging and important field is also presented.
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Affiliation(s)
- Po-Shun Wang
- Division of Cancer Biology, Department of Medicine, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, 44109, USA
| | - Zhishan Wang
- Division of Cancer Biology, Department of Medicine, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, 44109, USA
| | - Chengfeng Yang
- Division of Cancer Biology, Department of Medicine, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, 44109, USA.
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24
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Peng PH, Hsu KW, Chieh-Yu Lai J, Wu KJ. The role of hypoxia-induced long noncoding RNAs (lncRNAs) in tumorigenesis and metastasis. Biomed J 2021; 44:521-533. [PMID: 34654684 PMCID: PMC8640553 DOI: 10.1016/j.bj.2021.03.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/23/2021] [Accepted: 03/18/2021] [Indexed: 12/11/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are noncoding RNAs with length greater than 200 nt. The biological roles and mechanisms mediated by lncRNAs have been extensively investigated. Hypoxia is a proven microenvironmental factor that promotes solid tumor metastasis. Epithelial-mesenchymal transition (EMT) is one of the major mechanisms induced by hypoxia to contribute to metastasis. Many lncRNAs have been shown to be induced by hypoxia and their roles have been delineated. In this review, we focus on the hypoxia-inducible lncRNAs that interact with protein/protein complex and chromatin/epigenetic factors, and the mechanisms that contribute to metastasis. The role of a recently discovered lncRNA RP11-390F4.3 in hypoxia-induced EMT is discussed. Whole genome approaches to delineating the association between lncRNAs and histone modifications are discussed. Other topics related to hypoxia-induced tumor progression but require further investigation are also mentioned. The clinical significance and treatment strategy targeted against lncRNAs are discussed. The review aims to identify suitable lncRNA targets that may provide feasible therapeutic venues for hypoxia-involved cancers.
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Affiliation(s)
- Pei-Hua Peng
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Kai-Wen Hsu
- Research Center for Cancer Biology, Institute of New Drug Development, China Medical University, Taichung, Taiwan
| | | | - Kou-Juey Wu
- Cancer Genome Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan; Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan.
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25
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De Martino M, Esposito F, Pallante P. Long non-coding RNAs regulating multiple proliferative pathways in cancer cell. Transl Cancer Res 2021; 10:3140-3157. [PMID: 35116622 PMCID: PMC8797882 DOI: 10.21037/tcr-21-230] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/27/2021] [Indexed: 01/17/2023]
Abstract
Long non-coding RNAs (lncRNAs) belong to an extremely heterogeneous class of non-coding RNAs with a length ranging from 200 to 100,000 bp. They modulate a series of cellular pathways in both physiological and pathological context. It is no coincidence that they are expressed in an aberrant way in pathologies such as cancer, so as to deserve to be subclassified as oncogenes or tumor suppressors. These molecules are also involved in the regulation of cancer cell proliferation. Several lncRNAs are able to modulate cell growth both positively and negatively, and in this review we have focused on a small group of them, characterized by the simultaneous action on different pathways regulating cell proliferation. They have been considered in the light of their behavior in three different subtypes of proliferative pathways that we can define as (I) tumor suppressor, (II) oncogenic and (III) transcriptionally-driven. More specifically, we have characterized some lncRNAs considered oncogenes (such as H19, linc-ROR, MALAT1, HULC, HOTAIR and ANRIL), tumor suppressors (such as MEG3 and lincRNA-p21), and both oncogenes/tumor suppressors (UCA1 and TUG1) in a little more detail. As can be understood from the review, the interactions between lncRNAs and their molecular targets, only in the context of controlling cell proliferation, give rise to an intricate molecular network, the understanding of which, in the future, will certainly be of help for the treatment of molecular diseases such as cancer.
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Affiliation(s)
- Marco De Martino
- Institute of Experimental Endocrinology and Oncology (IEOS) "G. Salvatore", National Research Council (CNR), Naples, Italy
| | - Francesco Esposito
- Institute of Experimental Endocrinology and Oncology (IEOS) "G. Salvatore", National Research Council (CNR), Naples, Italy
| | - Pierlorenzo Pallante
- Institute of Experimental Endocrinology and Oncology (IEOS) "G. Salvatore", National Research Council (CNR), Naples, Italy
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26
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Shih CH, Chuang LL, Tsai MH, Chen LH, Chuang EY, Lu TP, Lai LC. Hypoxia-Induced MALAT1 Promotes the Proliferation and Migration of Breast Cancer Cells by Sponging MiR-3064-5p. Front Oncol 2021; 11:658151. [PMID: 34012919 PMCID: PMC8126986 DOI: 10.3389/fonc.2021.658151] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/12/2021] [Indexed: 12/21/2022] Open
Abstract
Hypoxia, a common process during tumor growth, can lead to tumor aggressiveness and is tightly associated with poor prognosis. Long noncoding RNAs (lncRNAs) are long ribonucleotides (>200 bases) with limited ability to translate proteins, and are known to affect many aspects of cellular function. One of their regulatory mechanisms is to function as a sponge for microRNA (miRNA) to modulate its biological functions. Previously, MALAT1 was identified as a hypoxia-induced lncRNA. However, the regulatory mechanism and functions of MALAT1 in breast cancer are still unclear. Therefore, we explored whether MALAT1 can regulate the functions of breast cancer cells through miRNAs. Our results showed the expression levels of MALAT1 were significantly up-regulated under hypoxia and regulated by HIF-1α and HIF-2α. Next, in contrast to previous reports, nuclear and cytoplasmic fractionation assays and fluorescence in situ hybridization indicated that MALAT1 was mainly located in the cytoplasm. Therefore, the labeling of MALAT1 as a nuclear marker should be done with the caveat. Furthermore, expression levels of miRNAs and RNA immunoprecipitation using antibody against AGO2 showed that MALAT1 functioned as a sponge of miRNA miR-3064-5p. Lastly, functional assays revealed that MALAT1 could promote cellular migration and proliferation of breast cancer cells. Our findings provide evidence that hypoxia-responsive long non-coding MALAT1 could be transcriptionally activated by HIF-1α and HIF-2α, act as a miRNA sponge of miR-3064-5p, and promote tumor growth and migration in breast cancer cells. These data suggest that MALAT1 may be a candidate for therapeutic targeting of breast cancer progression.
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Affiliation(s)
- Chung-Hsien Shih
- Graduate Institute of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Li-Ling Chuang
- School of Physical Therapy and Graduate Institute of Rehabilitation Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Mong-Hsun Tsai
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan.,Bioinformatics and Biostatistics Core, Center of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan
| | - Li-Han Chen
- Institute of Fisheries Science, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Eric Y Chuang
- Bioinformatics and Biostatistics Core, Center of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan.,Collage of Biomedical Engineering, China Medical University, Taichung, Taiwan
| | - Tzu-Pin Lu
- Bioinformatics and Biostatistics Core, Center of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.,Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Liang-Chuan Lai
- Graduate Institute of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Bioinformatics and Biostatistics Core, Center of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan
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27
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Zhao Y, Zhou L, Li H, Sun T, Wen X, Li X, Meng Y, Li Y, Liu M, Liu S, Kim SJ, Xiao J, Li L, Zhang S, Li W, Cohen P, Hoffman AR, Hu JF, Cui J. Nuclear-Encoded lncRNA MALAT1 Epigenetically Controls Metabolic Reprogramming in HCC Cells through the Mitophagy Pathway. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 23:264-276. [PMID: 33425485 PMCID: PMC7773746 DOI: 10.1016/j.omtn.2020.09.040] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022]
Abstract
Mitochondrial dysfunction is a metabolic hallmark of cancer cells. In search of molecular factors involved in this dysregulation in hepatocellular carcinoma (HCC), we found that the nuclear-encoded long noncoding RNA (lncRNA) MALAT1 (metastasis-associated lung adenocarcinoma transcript 1) was aberrantly enriched in the mitochondria of hepatoma cells. Using RNA reverse transcription-associated trap sequencing (RAT-seq), we showed that MALAT1 interacted with multiple loci on mitochondrial DNA (mtDNA), including D-loop, COX2, ND3, and CYTB genes. MALAT1 knockdown induced alterations in the CpG methylation of mtDNA and in mitochondrial transcriptomes. This was associated with multiple abnormalities in mitochondrial function, including altered mitochondrial structure, low oxidative phosphorylation (OXPHOS), decreased ATP production, reduced mitophagy, decreased mtDNA copy number, and activation of mitochondrial apoptosis. These alterations in mitochondrial metabolism were associated with changes in tumor phenotype and in pathways involved in cell mitophagy, mitochondrial apoptosis, and epigenetic regulation. We further showed that the RNA-shuttling protein HuR and the mitochondria transmembrane protein MTCH2 mediated the transport of MALAT1 in this nuclear-mitochondrial crosstalk. This study provides the first evidence that the nuclear genome-encoded lncRNA MALAT1 functions as a critical epigenetic player in the regulation of mitochondrial metabolism of hepatoma cells, laying the foundation for further clarifying the roles of lncRNAs in tumor metabolic reprogramming.
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Affiliation(s)
- Yijing Zhao
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
- Department of Medicine, PAVIR, Stanford University Medical School, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Lei Zhou
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Hui Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Tingge Sun
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Xue Wen
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Xueli Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Ying Meng
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
- Department of Medicine, PAVIR, Stanford University Medical School, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Yan Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
- Department of Medicine, PAVIR, Stanford University Medical School, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Mengmeng Liu
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
- Department of Medicine, PAVIR, Stanford University Medical School, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Shanshan Liu
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
- Department of Medicine, PAVIR, Stanford University Medical School, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Su-Jeong Kim
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Jialin Xiao
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Lingyu Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Songling Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Wei Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Pinchas Cohen
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Andrew R. Hoffman
- Department of Medicine, PAVIR, Stanford University Medical School, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Ji-Fan Hu
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
- Department of Medicine, PAVIR, Stanford University Medical School, VA Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Jiuwei Cui
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, China
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28
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Yao Z, Zhang Q, Guo F, Guo S, Yang B, Liu B, Li P, Li J, Guan S, Liu X. Long Noncoding RNA PCED1B-AS1 Promotes the Warburg Effect and Tumorigenesis by Upregulating HIF-1α in Glioblastoma. Cell Transplant 2021; 29:963689720906777. [PMID: 32326742 PMCID: PMC7444212 DOI: 10.1177/0963689720906777] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Accumulating evidence suggests that long noncoding RNA (lncRNA) functions as a critical regulator in cancer biology. Here, we characterized the role of lncRNA PCED1B antisense RNA 1 (PCED1B-AS1) in glioblastoma (GBM). PCED1B-AS1 was notably upregulated in GBM tissues and cell lines and closely associated with larger tumor size and higher grade. Patients with high PCED1B-AS1 had shorter survival time than those with low PCED1B-AS1. Functional experiments showed that depletion of PCED1B-AS1 significantly inhibited, while overexpression of PCED1B-AS1 promoted cell proliferation, glucose uptake, and lactate release. Mechanistically, PCED1B-AS1 was able to directly bind to the 5'-UTR of HIF-1α mRNA and potentiate HIF-1α translation, leading to increased HIF-1α protein level, thereby promoting the Warburg effect and tumorigenesis. Importantly, PCED1B-AS1 lost the carcinogenic properties in the absence of HIF-1α. In addition, we also confirmed the existence of the PCED1B-AS1/HIF-1α regulatory axis in vivo. Taken together, our findings demonstrate that PCED1B-AS1 is a novel oncogenic lncRNA in GBM and functions in a HIF-1α-dependent manner, which provides a promising prognostic biomarker and druggable target for GBM.
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Affiliation(s)
- Zhiqiang Yao
- Department of Interventional Neuroradiology, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Qiansheng Zhang
- Department of Neurosurgery, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan, China
| | - Fuyou Guo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Shewei Guo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Bo Yang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Binghui Liu
- Department of Interventional Neuroradiology, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Panxing Li
- Department of Interventional Neuroradiology, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Jinyi Li
- Department of Interventional Neuroradiology, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Sheng Guan
- Department of Interventional Neuroradiology, The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Xianzhi Liu
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Henan, China
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Abdi E, Latifi-Navid S, Latifi-Navid H, Safaralizadeh R. LncRNA polymorphisms and upper gastrointestinal cancer risk. Pathol Res Pract 2021; 218:153324. [DOI: 10.1016/j.prp.2020.153324] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/13/2020] [Accepted: 12/15/2020] [Indexed: 02/07/2023]
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Lin X, Wu Z, Hu H, Luo ML, Song E. Non-coding RNAs rewire cancer metabolism networks. Semin Cancer Biol 2021; 75:116-126. [PMID: 33421618 DOI: 10.1016/j.semcancer.2020.12.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/16/2020] [Accepted: 12/24/2020] [Indexed: 12/12/2022]
Abstract
Non-coding RNAs (ncRNAs) are functional RNAs with limited or no protein-coding ability. These interact with their target molecules and participate in the precise regulation of disease development. Metabolic reprogramming is a hallmark in cancer, and is considered essential in meeting increased macromolecular biosynthesis and energy generation of tumors. Recent studies have revealed the involvement of ncRNAs in several metabolic regulations of cancer through direct modulation of metabolic enzyme activities or participation of metabolism-related signaling pathways. Elucidation of how ncRNAs regulate metabolic reprogramming of cancers has opened up a novel intention to understand the mechanism of metabolic rewiring and also the opportunities of utilizing ncRNA-based therapeutics for targeting the metabolism in cancer treatment.
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Affiliation(s)
- Xiaorong Lin
- Diagnosis and Treatment Center of Breast Diseases, Shantou Affiliated Hospital, Sun Yat-sen University, Shantou 515031, People's Republic of China; Department of Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, People's Republic of China
| | - Zhiyong Wu
- Diagnosis and Treatment Center of Breast Diseases, Shantou Affiliated Hospital, Sun Yat-sen University, Shantou 515031, People's Republic of China
| | - Hai Hu
- Department of Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, People's Republic of China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People's Republic of China.
| | - Man-Li Luo
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People's Republic of China; Medical Research Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, People's Republic of China.
| | - Erwei Song
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People's Republic of China; Breast Tumor Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, People's Republic of China; Fountain-Valley Institute for Life Sciences, 4th Floor, Building D, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Huangpu District, Guangzhou, People's Republic of China.
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Liu J, Niu Q, Hu Y, Ran S, Li S. The Mechanism of Trivalent Inorganic Arsenic on HIF-1α: a Systematic Review and Meta-analysis. Biol Trace Elem Res 2020; 198:449-463. [PMID: 32124230 DOI: 10.1007/s12011-020-02087-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/21/2020] [Indexed: 12/11/2022]
Abstract
The purpose of our study was to investigate the role of hypoxia-inducible factor-1α (HIF-1α) in arsenic-induced carcinogenesis. We included 39 articles for meta-analysis. The results showed that low-dose exposure to arsenic (≤ 10 μmol/L) could promote the expression of phosphatidylinositol 3-kinase (PI3K) and phosphorylation-protein kinase B (p-AKT). High-dose arsenic exposure (> 10 μmol/L) promoted the expression of PI3K, HIF-1α, vascular endothelial growth factor (VEGF), and p38MAPK (P38). Acute arsenic exposure (< 24 h) promoted the expression of PI3K, HIF-1α, and VEGF. Chronic arsenic exposure (≥ 24 h) promoted the expression of PI3K, p-AKT, and P38. Moreover, for normal tissue-derived cells, arsenic could induce the increased expression of PI3K, p-AKT, HIF-1α, and VEGF. For tumor tissue-derived cells, arsenic could induce the expression of PI3K, p-AKT, and P38. We found that arsenic exposure could activate the PI3K/AKT pathway, further induce the high expression of HIF-1α, and then upregulate the levels of miRNA-21 and VEGF, promote the expression of proliferating cell nuclear antigen (PCNA), and ultimately lead to malignant cell proliferation. Our findings indicated that arsenic could increase the expression of HIF-1α by activating the PI3K/AKT pathway and eventually induce malignant cell proliferation.
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Affiliation(s)
- Jiaqing Liu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Qiang Niu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Yunhua Hu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Shanshan Ran
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Shugang Li
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China.
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Wang X, Zhao D, Xie H, Hu Y. Interplay of long non-coding RNAs and HIF-1α: A new dimension to understanding hypoxia-regulated tumor growth and metastasis. Cancer Lett 2020; 499:49-59. [PMID: 33217445 DOI: 10.1016/j.canlet.2020.11.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/11/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022]
Abstract
Hypoxia is a feature of the solid tumor microenvironment that is associated with poor clinical outcomes in multiple tumor types. Hypoxia-induced factor-1 alpha (HIF-1α) is a master regulator of hypoxic adaption, has been demonstrated to modulate hypoxic gene expression profiling and signaling transduction networks, and is thus a potential therapeutic target. Despite hypoxic response signaling having being extensively studied, the involvement of long non-coding RNAs (lncRNAs) in the hypoxic response has become a new focus of attention. Emerging evidence has documented complex interactions between HIF-1α and lncRNAs, which contribute to the acquisition of multiple hallmarks of cancer. In this review, we focus on recent advances in the study of hypoxia and HIF-1α-regulated lncRNAs, and summarize the molecular mechanisms and functional outcomes of the interplay between lncRNAs and HIF-1α, which may provide important insights into cancer diagnosis and prognosis, enabling better control of cancer.
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Affiliation(s)
- Xingwen Wang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang Provence, 150001, China
| | - Dong Zhao
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang Provence, 150001, China
| | - Hui Xie
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, 2 Yikuang, Harbin, 150001, China
| | - Ying Hu
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang Provence, 150001, China; Shenzhen Graduate School of Harbin Institute of Technology, Shenzhen, 518055, China.
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Wang W, Zheng F, Lin C, Zhang A. Changes in energy metabolism and macrophage polarization: Potential mechanisms of arsenic-induced lung injury. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:110948. [PMID: 32739672 DOI: 10.1016/j.ecoenv.2020.110948] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/10/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
Exposure to arsenic is epidemiologically associated with increased lung disease. In detailing the mechanism by which arsenic exposure leads to disease, studies have emphasized that metabolic reprogramming and immune dysfunction are related to arsenic-induced lung injury. However, the association between the mechanisms listed above is not well understood. Thus, the current study aimed to investigate the interaction of energy metabolism and macrophage polarization, by which arsenic exposure adversely induced lung injury in both in vitro and human studies. First, we confirmed a shift to glycolytic metabolism resulting from mitochondrial dysfunction. This shift was accompanied by an increase in the levels of phosphorylated PDHE1α (S293) and PDK1 and a concomitant marked increase in several key markers of the HIF-1α signaling pathway (HIF-1α, p-PKM2, GLUT1 and HK-2). In addition, utilizing an in vitro model in which lung epithelial cells are cultured with macrophages, we determined that arsenic treatment polarizes macrophages towards the M2 phenotype through lactate. In the human study, the serum lactate and TGF-β levels were higher in arsenic-exposed subjects than that in reference subjects (t= 4.50, 6.24, both p < 0.05), while FVC and FEV1 were both lower (t= 5.47, 7.59, both p < 0.05). Pearson correlation analyses showed a significant negative correlation between the serum TGF-β and lactate levels and the lung function parameters (pcorrelation<0.05). In mediation analyses, lactate and TGF-β significantly mediated 24.3% and 9.0%, respectively, of the association between arsenic and FVC (pmediation<0.05), while lactate and TGF-β significantly mediated 22.2% and 12.5%, respectively, of the association between arsenic and FEV1 (pmediation<0.05). Together, the results of the in vitro and human studies indicated that there is complex communication between metabolic reprogramming and immune dysfunction, resulting in exacerbated effects in a feedback loop with increased arsenic-induced lung damage.
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Affiliation(s)
- Wenjuan Wang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, PR China
| | - Fanyan Zheng
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, PR China
| | - Changhu Lin
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, PR China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, PR China.
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Tan YT, Lin JF, Li T, Li JJ, Xu RH, Ju HQ. LncRNA-mediated posttranslational modifications and reprogramming of energy metabolism in cancer. Cancer Commun (Lond) 2020; 41:109-120. [PMID: 33119215 PMCID: PMC7896749 DOI: 10.1002/cac2.12108] [Citation(s) in RCA: 292] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/06/2020] [Accepted: 10/19/2020] [Indexed: 12/14/2022] Open
Abstract
Altered metabolism is a hallmark of cancer, and the reprogramming of energy metabolism has historically been considered a general phenomenon of tumors. It is well recognized that long noncoding RNAs (lncRNAs) regulate energy metabolism in cancer. However, lncRNA‐mediated posttranslational modifications and metabolic reprogramming are unclear at present. In this review, we summarized the current understanding of the interactions between the alterations in cancer‐associated energy metabolism and the lncRNA‐mediated posttranslational modifications of metabolic enzymes, transcription factors, and other proteins involved in metabolic pathways. In addition, we discuss the mechanisms through which these interactions contribute to tumor initiation and progression, and the key roles and clinical significance of functional lncRNAs. We believe that an in‐depth understanding of lncRNA‐mediated cancer metabolic reprogramming can help to identify cellular vulnerabilities that can be exploited for cancer diagnosis and therapy.
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Affiliation(s)
- Yue-Tao Tan
- Department of Medical Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China
| | - Jin-Fei Lin
- Department of Medical Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China
| | - Ting Li
- Department of Medical Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China
| | - Jia-Jun Li
- Department of Medical Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China
| | - Rui-Hua Xu
- Department of Medical Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, Guangdong, 510060, P. R. China
| | - Huai-Qiang Ju
- Department of Medical Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, 510060, P. R. China.,Research Unit of Precision Diagnosis and Treatment for Gastrointestinal Cancer, Chinese Academy of Medical Sciences, Guangzhou, Guangdong, 510060, P. R. China
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35
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Yang T, Shu X, Zhang HW, Sun LX, Yu L, Liu J, Sun LC, Yang ZH, Ran YL. Enolase 1 regulates stem cell-like properties in gastric cancer cells by stimulating glycolysis. Cell Death Dis 2020; 11:870. [PMID: 33067426 PMCID: PMC7567818 DOI: 10.1038/s41419-020-03087-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 12/18/2022]
Abstract
Recent studies have demonstrated that gastric cancer stem cells (CSCs) are a rare sub-group of gastric cancer (GC) cells and have an important role in promoting the tumor growth and progression of GC. In the present study, we demonstrated that the glycolytic enzyme Enolase 1 (ENO1) was involved in the regulation of the stem cell-like characteristics of GC cells, as compared to the parental cell lines PAMC-82 and SNU16, the expression of ENO1 in spheroids markedly increased. We then observed that ENO1 could enhance stem cell-like characteristics, including self-renewal capacity, cell invasion and migration, chemoresistance, and even the tumorigenicity of GC cells. ENO1 is known as an enzyme that is involved in glycolysis, but our results showed that ENO1 could markedly promote the glycolytic activity of cells. Furthermore, inhibiting glycolysis activity using 2-deoxy-D-glucose treatment significantly reduced the stemness of GC cells. Therefore, ENO1 could improve the stemness of CSCs by enhancing the cells' glycolysis. Subsequently, to further confirm our results, we found that the inhibition of ENO1 using AP-III-a4 (ENOblock) could reduce the stemness of GC cells to a similar extent as the knockdown of ENO1 by shRNA. Finally, increased expression of ENO1 was related to poor prognosis in GC patients. Taken together, our results demonstrated that ENO1 is a significant biomarker associated with the stemness of GC cells.
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Affiliation(s)
- Ting Yang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Xiong Shu
- Laboratory of Molecular orthopaedics, Beijing Research Institute of Orthopaedics and Traumatology, Beijing Ji Shui Tan Hospital, Beijing, 100035, China
| | - Hui-Wen Zhang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Li-Xin Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Long Yu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Jun Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Li-Chao Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Zhi-Hua Yang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yu-Liang Ran
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
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36
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Cayir A. Environmental exposures and RNA N6-Methyladenosine modified long Non-Coding RNAs. Crit Rev Toxicol 2020; 50:641-649. [PMID: 32924714 DOI: 10.1080/10408444.2020.1812511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Recent advances in the field of RNA modifications and long non-coding RNAs (lncRNAs) have provided substantial evidence on important biological functions. LncRNAs are defined as longer than 200 nucleotides which are not translated into proteins. The term "epitranscriptome" refers to all modifications in RNA types. Adenine-6 methylation (m6A) is the most common, dynamic and prominent modifications in coding and non-coding RNAs and has critical and previously unappreciated functional roles. Accumulation evidence indicated the association between RNA m6A modification and cancer and nonmalignant diseases. Recent studies reported that several lncRNAs including MALAT1, MEG3, XIST, GAS5, and KCNK15-AS1 are subject to m6A modification. It can be suggested that lncRNAs modified by m6A modification have substantive roles in diseases. Currently limited data are available regarding how environmental exposure affects m6A-modified lncRNAs. Furthermore, we do not know the interaction of environmental exposure and m6A-modified lncRNAs in development of adverse human health outcomes. Thus, in this systematic review, we aimed to present the data of the studies that reported a significant association between environmental exposure and expression/DNA methylation of m6A-modified long non-coding RNAs.
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Affiliation(s)
- Akin Cayir
- Vocational Health College, Canakkale Onsekiz Mart University, Canakkale, Turkey
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37
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Wang Y, Zhao M, Cui J, Wu X, Li Y, Wu W, Zhang X. Ochratoxin A induces reprogramming of glucose metabolism by switching energy metabolism from oxidative phosphorylation to glycolysis in human gastric epithelium GES-1 cells in vitro. Toxicol Lett 2020; 333:232-241. [PMID: 32835834 DOI: 10.1016/j.toxlet.2020.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 08/15/2020] [Accepted: 08/18/2020] [Indexed: 11/15/2022]
Abstract
Ochratoxin A (OTA) is a ubiquitous mycotoxin with potential nephrotoxic, hepatotoxic and immunotoxic effects. We previously demonstrated that OTA could cause mitochondrial function disturbance in GES-1 cells in vitro, which lead to the presumption that the glucose metabolism of GES-1 cells will be altered by OTA. Therefore in the present study, we explored the toxicity of OTA on glucose metabolism of GES-1 cells and the molecular mechanism. We found that OTA could induce aerobic glycolysis, evidenced shown by increase of glucose consumption, lactate production and cellular ATP concentration. We further detected expressions of GLUT1 and glycolytic enzymes including HK2, PFK1, PKM2 and LDHA as well as tricarboxylic acid (TCA) cycle-associated enzymes including IDH1, OGDH and CS. The results showed that expression of GLUT1 as well as the activities and expressions of HK2, PFK1 and LDHA were significantly increased while IDH1 and OGDH were reduced by OTA. As to PKM2, western blot showed that OTA could elevated the phospho-PKM2 Ser37 protein level and induce the nuclear accumulation of PKM2, which was further supported by immunofluorescence analyses, in addition, pyruvate kinase activity was reduced by OTA. In conclusion, these findings suggest that OTA exposure induces the metabolic shift from oxidative phosphorylation to aerobic glycolysis via regulating the activities and expressions of glycolysis and TCA-cycle associated molecules in GES-1 cells.
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Affiliation(s)
- Yuan Wang
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Man Zhao
- Metabolic Disease and Cancer Research Center, Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Jinfeng Cui
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Xin Wu
- Department of Pathology, Hebei North University, Zhangjiakou, China
| | - Yuehong Li
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Wenxin Wu
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Xianghong Zhang
- Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China; Metabolic Disease and Cancer Research Center, Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China.
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Jayasuriya R, Dhamodharan U, Karan AN, Anandharaj A, Rajesh K, Ramkumar KM. Role of Nrf2 in MALAT1/ HIF-1α loop on the regulation of angiogenesis in diabetic foot ulcer. Free Radic Biol Med 2020; 156:168-175. [PMID: 32473205 DOI: 10.1016/j.freeradbiomed.2020.05.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/21/2020] [Accepted: 05/24/2020] [Indexed: 12/17/2022]
Abstract
Diabetic non healing wounds often result in significant morbidity and mortality. The number of effective targets to detect these wounds are meagre. Slow lymphangiogenesis is one of the complex processes involved in impaired healing of wounds. Long non coding RNAs (lncRNAs) have been importantly recognized for their role in pathological conditions. Multiple studies highlighting the role of lncRNAs in the regulation of several biological processes and complex diseases. Herein, we investigated the role of lncRNA Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in the progression of diabetic foot ulcer (DFU). We report a significant reduction in the expression of lncRNA MALAT1 in the infected DFU subjects which was positively correlated with the expression of angiogenic factors such as Nrf2, HIF-1α and VEGF. Further, expression of pro-inflammatory markers TNF-α and IL-6 were found to be increased while, the expression of anti-inflammatory marker IL-10 was decreased in infected DFU tissues. Involvement of lncRNA MALAT1 in angiogenesis in EA.hy926 cells was demonstrated by silencing the expression of Nrf2, HIF-1α, and VEGF through interference mediated by MALAT1. In addition, its inflammatory role was demonstrated by decreased expression of TNF-α, IL-6 and not affecting the expression of IL-10. Further, CRISPR-Cas9 knock out of Nrf2 decreased the expression of lncRNA MALAT1, HIF-1α and VEGF which revealed the association of Nrf2 in regulating MALAT1/HIF-1α loop through positive feedback mechanism. Collectively, our results suggested the role of Nrf2 on MALAT1/HIF-1α loop in the regulation of angiogenesis, which could act as a novel target in the treatment of diabetic wounds.
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Affiliation(s)
- Ravichandran Jayasuriya
- Department of Biotechnology and SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - Umapathy Dhamodharan
- Department of Biotechnology and SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - Amin Naresh Karan
- Department of Biotechnology and SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - Arunkumar Anandharaj
- Indian Institute of Food Processing Technology, Pudukkottai Road, Thanjavur, 613005, Tamil Nadu, India
| | - Kesavan Rajesh
- Department of Podiatry, Hycare Super Speciality Hospital, MMDA Colony, Arumbakkam, Chennai, 600 106, Tamil Nadu, India.
| | - Kunka Mohanram Ramkumar
- Department of Biotechnology and SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India.
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Long-Noncoding RNA (lncRNA) in the Regulation of Hypoxia-Inducible Factor (HIF) in Cancer. Noncoding RNA 2020; 6:ncrna6030027. [PMID: 32640630 PMCID: PMC7549355 DOI: 10.3390/ncrna6030027] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/25/2020] [Accepted: 07/03/2020] [Indexed: 02/06/2023] Open
Abstract
Hypoxia is dangerous for oxygen-dependent cells, therefore, physiological adaption to cellular hypoxic conditions is essential. The transcription factor hypoxia-inducible factor (HIF) is the main regulator of hypoxic metabolic adaption reducing oxygen consumption and is regulated by gradual von Hippel-Lindau (VHL)-dependent proteasomal degradation. Beyond physiology, hypoxia is frequently encountered within solid tumors and first drugs are in clinical trials to tackle this pathway in cancer. Besides hypoxia, cancer cells may promote HIF expression under normoxic conditions by altering various upstream regulators, cumulating in HIF upregulation and enhanced glycolysis and angiogenesis, altogether promoting tumor proliferation and progression. Therefore, understanding the underlying molecular mechanisms is crucial to discover potential future therapeutic targets to evolve cancer therapy. Long non-coding RNAs (lncRNA) are a class of non-protein coding RNA molecules with a length of over 200 nucleotides. They participate in cancer development and progression and might act as either oncogenic or tumor suppressive factors. Additionally, a growing body of evidence supports the role of lncRNAs in the hypoxic and normoxic regulation of HIF and its subunits HIF-1α and HIF-2α in cancer. This review provides a comprehensive update and overview of lncRNAs as regulators of HIFs expression and activation and discusses and highlights potential involved pathways.
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Wu A, Zhou X, Mi L, Shen J. LINC00202 promotes retinoblastoma progression by regulating cell proliferation, apoptosis, and aerobic glycolysis through miR-204-5p/HMGCR axis. Open Life Sci 2020; 15:437-448. [PMID: 33817232 PMCID: PMC7874641 DOI: 10.1515/biol-2020-0047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/14/2020] [Accepted: 05/14/2020] [Indexed: 11/15/2022] Open
Abstract
LINC00202 is a newly identified long noncoding RNA (lncRNA) and has been demonstrated to involve in the progression of retinoblastoma (RB). Here, we further explored the role and the underlying molecular mechanism of LINC00202 on RB malignant properties and glycolysis. LINC00202, microRNA (miR)-204-5p, and 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase (HMGCR) mRNA were detected by a quantitative real-time polymerase chain reaction. Cell proliferation and apoptosis were analyzed using cell counting kit-8 assay and colony formation assay and flow cytometry, respectively. Glucose metabolism was calculated by measuring the extracellular acidification rate (ECRA). Western blot was used to detect the levels of HMGCR, ki67, pro-caspase-3, cleaved-caspase-3, and lactate dehydrogenase A chain (LDHA). The interaction between miR-204-5p and LINC00202 or HMGCR was analyzed by the dual-luciferase reporter assay. Murine xenograft model was established to conduct in vivo experiments. LINC00202 expression was upregulated in RB tumor tissues and LINC00202 knockdown inhibited RB cell proliferation, glycolysis, and stimulated apoptosis in vitro as well as impeded tumor growth in vivo. MiR-204-5p directly bound to LINC00202 and HMGCR in RB cells, and LINC00202 functioned as a competing endogenous RNA in regulating HMGCR through competitively binding to miR-204-5p. More importantly, the regulation of malignant properties and glycolysis of RB cells mediated by LINC00202 could be reversed by abnormal miR-204-5p or HMGCR expression in RB cells. In all, LINC00202 promoted RB cell proliferation, glycolysis, and suppressed apoptosis by regulating the miR-204-5p/HMGCR axis, suggesting a novel therapeutic target for patients with RB.
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Affiliation(s)
- Aimin Wu
- Department of Ophthalmology, Fenghua District People’s Hospital of Ningbo City, Ningbo, No. 36 Gongyuan Road, Fenghua District, Ningbo City, Zhejiang Province, 315500, China
| | - Xuewei Zhou
- Department of Ophthalmology, Fenghua District People’s Hospital of Ningbo City, Ningbo, No. 36 Gongyuan Road, Fenghua District, Ningbo City, Zhejiang Province, 315500, China
| | - Linglong Mi
- Department of Ophthalmology, Fenghua District People’s Hospital of Ningbo City, Ningbo, No. 36 Gongyuan Road, Fenghua District, Ningbo City, Zhejiang Province, 315500, China
| | - Jiang Shen
- Department of Ophthalmology, Ningbo Eye Hospital, Ningbo, China
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Kuo TC, Kung HJ, Shih JW. Signaling in and out: long-noncoding RNAs in tumor hypoxia. J Biomed Sci 2020; 27:59. [PMID: 32370770 PMCID: PMC7201962 DOI: 10.1186/s12929-020-00654-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/22/2020] [Indexed: 02/07/2023] Open
Abstract
Over the past few years, long non-coding RNAs (lncRNAs) are recognized as key regulators of gene expression at chromatin, transcriptional and posttranscriptional level with pivotal roles in various biological and pathological processes, including cancer. Hypoxia, a common feature of the tumor microenvironment, profoundly affects gene expression and is tightly associated with cancer progression. Upon tumor hypoxia, the central regulator HIF (hypoxia-inducible factor) is upregulated and orchestrates transcription reprogramming, contributing to aggressive phenotypes in numerous cancers. Not surprisingly, lncRNAs are also transcriptional targets of HIF and serve as effectors of hypoxia response. Indeed, the number of hypoxia-associated lncRNAs (HALs) identified has risen sharply, illustrating the expanding roles of lncRNAs in hypoxia signaling cascade and responses. Moreover, through extra-cellular vesicles, lncRNAs could transmit hypoxia responses between cancer cells and the associated microenvironment. Notably, the aberrantly expressed cellular or exosomal HALs can serve as potential prognostic markers and therapeutic targets. In this review, we provide an update of the current knowledge about the expression, involvement and potential clinical impact of lncRNAs in tumor hypoxia, with special focus on their unique molecular regulation of HIF cascade and hypoxia-induced malignant progression.
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Affiliation(s)
- Tse-Chun Kuo
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, 35053, Taiwan, ROC
| | - Hsing-Jien Kung
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, 35053, Taiwan, ROC.,Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan, ROC.,Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan, ROC.,Department of Biochemistry and Molecular Medicine, Comprehensive Cancer Center, University of California at Davis, Sacramento, CA, 95817, USA.,TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, 110, Taiwan, ROC
| | - Jing-Wen Shih
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan, ROC. .,Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan, ROC. .,TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, 110, Taiwan, ROC. .,Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan, ROC.
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42
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Crosstalk of lncRNA and Cellular Metabolism and Their Regulatory Mechanism in Cancer. Int J Mol Sci 2020; 21:ijms21082947. [PMID: 32331347 PMCID: PMC7215767 DOI: 10.3390/ijms21082947] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 01/17/2023] Open
Abstract
The imbalanced regulation of metabolic homeostasis and energy production is highly associated with inflammation, tumor growth, metastasis and cancer progression. Both glycolysis and oxidative phosphorylation maintain metabolic homeostasis and energy production in cells. Long noncoding RNAs (lncRNAs) are a class of non-protein-coding transcripts longer than 200 nucleotides. Furthermore, lncRNAs can function as either tumor suppressors or oncogenes in cancer. Dysregulated lncRNAs reportedly regulate cancer hallmarks such as tumor growth, metabolism and metastasis. Accordingly, uncovering the interaction between lncRNAs and cellular metabolism has become a necessity when attempting to identify effective therapeutic and preventive strategies in cancer progression. This review summarizes important knowledge of the actions of known lncRNAs-mediated cancer metabolism.
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Shao M, Yu Z, Zou J. LncRNA-SNHG16 Silencing Inhibits Prostate Carcinoma Cell Growth, Downregulate GLUT1 Expression and Reduce Glucose Uptake. Cancer Manag Res 2020; 12:1751-1757. [PMID: 32210616 PMCID: PMC7071729 DOI: 10.2147/cmar.s231370] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/10/2020] [Indexed: 01/05/2023] Open
Abstract
Background lncRNA-SNHG16 was identified as an oncogene in many cancers, but its involvement in prostate carcinoma is unknown. Material and Method Expression of lncRNA-SNHG16 and glucose transporter 1 (GLUT-1) in 52 prostate carcinoma tissues and 36 normal prostate tissues was analyzed by RT-qPCR. Transfections were performed to analyze gene interactions. Cell proliferation was analyzed by cell proliferation assay. Results Overexpression of lncRNA-SNHG16 effectively distinguished prostate carcinoma patients from normal ones. Expression levels of lncRNA-SNHG16 and GLUT-1 mRNA were significantly and positively correlated across prostate carcinoma tissues. In vitro cancer cell experiments revealed that lncRNA-SNHG16 siRNA silencing downregulated the expressions of GLUT-1 and reduced glucose uptake. lncRNA-SNHG16 siRNA silencing also significantly inhibited prostate carcinoma cell proliferation. However, lncRNA-SNHG16 siRNA silencing did not affect the normal prostate. Conclusion In conclusion, lncRNA-SNHG16 might be a possible treatment target for prostate cancer.
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Affiliation(s)
- Mingfeng Shao
- Department of Urology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
| | - Ziqiang Yu
- Department of Urology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
| | - Jianan Zou
- Department of Urology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
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Guo X, Zhang Y, Liu L, Yang W, Zhang Q. HNF1A-AS1 Regulates Cell Migration, Invasion and Glycolysis via Modulating miR-124/MYO6 in Colorectal Cancer Cells. Onco Targets Ther 2020; 13:1507-1518. [PMID: 32110048 PMCID: PMC7035897 DOI: 10.2147/ott.s231249] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 11/17/2019] [Indexed: 12/17/2022] Open
Abstract
Background Accumulating evidence determined that lncRNAs play multiple roles in cell progression in colorectal cancer (CRC). Long noncoding RNA (lncRNA) hepatocyte nuclear factor 1 homeobox A (HNF1A)-antisense RNA 1 (AS1) has been identified to affect cell growth and disease diagnosis in various cancers, including CRC. However, the underlying regulatory mechanism of HNF1A-AS1 in cell progression and glycolysis has not been fully explored in CRC. Materials and Methods The expression of HNF1A-AS1, microRNA-124 (miR-124) and Myosins of class VI (MYO6) was detected using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The analysis of glucose consumption, lactate production and hexokinase 2 (HK2) protein level was used to assess glycolysis in cells. The protein level of HK2 and MYO6 was measured with Western blot. Cell migration and invasion were evaluated using the transwell assay. The relationship among HNF1A-AS1, miR-124 and MYO6 was determined via luciferase reporter and RNA immunoprecipitation (RIP) assay. Results In this study, we found that HNF1A-AS1 was upregulated in CRC tissues and cell lines. Functional experiments determined that reduction of HNF1A-AS1 or promotion of miR-124 inhibited cell migration and invasion as well as glycolysis in CRC cells. What’ more, luciferase reporter assay manifested that miR-124 was a target of HNF1A-AS1 and MYO6 was a target mRNA of miR-124 in CRC cells. Additionally, reverse experiments showed that the effects of si-HNF1A-AS1 on colorectal cancer cells were impaired by anti-miR-124 and the effects of high miR-124 expression on CRC cells were rescued by upregulating MYO6. HNF1A-AS1 regulated MYO6 expression via targeting miR-124 in CRC cells. Conclusion In this study, we first found that HNF1A-AS1 regulated cell migration, invasion and glycolysis via modulating miR-124/MYO6 in CRC cells.
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Affiliation(s)
- Xiong Guo
- Colorectal and Anal Surgical Department, Xiangya Hospital Central South University, Changsha 410008, People's Republic of China
| | - Yang Zhang
- Colorectal and Anal Surgical Department, Xiangya Hospital Central South University, Changsha 410008, People's Republic of China
| | - Ling Liu
- Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital Central South University, Changsha 410008, People's Republic of China
| | - Weiming Yang
- Colorectal and Anal Surgical Department, Xiangya Hospital Central South University, Changsha 410008, People's Republic of China
| | - Qi Zhang
- Department of Hepatobiliary and Pancreatic Surgery, Xiangya Hospital Central South University, Changsha 410008, People's Republic of China
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45
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Peng X, Gao H, Xu R, Wang H, Mei J, Liu C. The interplay between HIF-1α and noncoding RNAs in cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:27. [PMID: 32014012 PMCID: PMC6998277 DOI: 10.1186/s13046-020-1535-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 01/27/2020] [Indexed: 12/19/2022]
Abstract
Hypoxia is a classic characteristic of the tumor microenvironment with a significant impact on cancer progression and therapeutic response. Hypoxia-inducible factor-1 alpha (HIF-1α), the most important transcriptional regulator in the response to hypoxia, has been demonstrated to significantly modulate hypoxic gene expression and signaling transduction networks. In past few decades, growing numbers of studies have revealed the importance of noncoding RNAs (ncRNAs) in hypoxic tumor regions. These hypoxia-responsive ncRNAs (HRNs) play pivotal roles in regulating hypoxic gene expression at the transcriptional, posttranscriptional, translational and posttranslational levels. In addition, as a significant gene expression regulator, ncRNAs exhibit promising roles in regulating HIF-1α expression at multiple levels. In this review, we briefly elucidate the reciprocal regulation between HIF-1α and ncRNAs, as well as their effect on cancer cell behaviors. We also try to summarize the complex feedback loop existing between these two components. Moreover, we evaluated the biomarker potential of HRNs for the diagnosis and prognosis of cancer, as well as the potential clinical utility of shared regulatory mechanisms between HIF-1α and ncRNAs in cancer treatment, providing novel insights into tumorigenicity, which may lead to innovative clinical applications.
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Affiliation(s)
- Xiafeng Peng
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, China.,The First Clinical Medicine School, Nanjing Medical University, Nanjing, 211166, China
| | - Han Gao
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Rui Xu
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Huiyu Wang
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, China
| | - Jie Mei
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, China.
| | - Chaoying Liu
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, China.
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46
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Zhang TN, Wang W, Yang N, Huang XM, Liu CF. Regulation of Glucose and Lipid Metabolism by Long Non-coding RNAs: Facts and Research Progress. Front Endocrinol (Lausanne) 2020; 11:457. [PMID: 32765426 PMCID: PMC7381111 DOI: 10.3389/fendo.2020.00457] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 06/10/2020] [Indexed: 12/17/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are a type of non-coding RNA with a length that exceeds 200 nucleotides. Previous studies have shown that lncRNAs play an important role in the pathogenesis of various diseases. Research in both animal models and humans has begun to unravel the profound complexity of lncRNAs and demonstrated that lncRNAs exert direct effects on glucose and lipid metabolism both in vivo and in vitro. Such research has elucidated the regulatory role of lncRNAs in glucose and lipid metabolism in human disease. lncRNAs mediate glucose and lipid metabolism under physiological and pathological conditions and contribute to various metabolism disorders. This review provides an update on our understanding of the regulatory role of lncRNAs in glucose and lipid metabolism in various diseases. As our understanding of the function of lncRNAs improves, the future is promising for the development of new diagnostic biomarkers that utilize lncRNAs and treatments that target lncRNAs to improve clinical outcomes.
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Affiliation(s)
- Tie-Ning Zhang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
- *Correspondence: Tie-Ning Zhang
| | - Wei Wang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ni Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xin-Mei Huang
- Department of Endocrinology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
- Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, CT, United States
- Xin-Mei Huang
| | - Chun-Feng Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
- Chun-Feng Liu
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47
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Lu W, Cao F, Wang S, Sheng X, Ma J. LncRNAs: The Regulator of Glucose and Lipid Metabolism in Tumor Cells. Front Oncol 2019; 9:1099. [PMID: 31850189 PMCID: PMC6901916 DOI: 10.3389/fonc.2019.01099] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 10/07/2019] [Indexed: 12/29/2022] Open
Abstract
Metabolism is a complex network of regulatory system. Cells often alter their metabolism in response to the changes in their environment. These adaptive changes are particularly pronounced in tumor cells, known as metabolic reprogramming. Metabolic reprogramming is considered to be one of the top 10 characteristics of tumor cells. Glucose and lipid metabolism are important components of metabolic reprogramming. A large number of experimental studies have shown that long non-coding RNAs (lncRNAs) play an important role in glucose and lipid metabolism. The current review briefly introduces the regulatory effect of lncRNAs on glucose and lipid metabolism of tumor cells, and the significance of lncRNA-mediated metabolism in tumor therapy, hoping to provide new strategies for clinical targeting tumor therapy.
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Affiliation(s)
- Wei Lu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Fenghua Cao
- Zhenjiang Hospital of Chinese Traditional and Western Medicine, Zhenjiang, China
| | - Shengjun Wang
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xiumei Sheng
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jie Ma
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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He J, Liu W, Ge X, Wang GC, Desai V, Wang S, Mu W, Bhardwaj V, Seifert E, Liu LZ, Bhushan A, Peiper SC, Jiang BH. Arsenic-induced metabolic shift triggered by the loss of miR-199a-5p through Sp1-dependent DNA methylation. Toxicol Appl Pharmacol 2019; 378:114606. [PMID: 31170415 PMCID: PMC6788774 DOI: 10.1016/j.taap.2019.114606] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 05/21/2019] [Accepted: 05/31/2019] [Indexed: 12/23/2022]
Abstract
Inorganic arsenic is an environmental carcinogen that poses a major global public health risk. A high percentage of drinking water from wells in the U.S. contains higher-than-normal levels of arsenic, suggesting an increased risk of arsenic-induced deleterious effects. In addition to primary preventive measures, therapeutic strategies need to effectively address and integrate multiple molecular mechanisms underlying arsenic-induced carcinogenesis. We previously showed that the loss of miR-199a-5p in arsenic-transformed cells is pivotal to promote arsenic-induced angiogenesis and tumor growth in lung epithelial cells. In this study, we further showed that subacute or chronic exposure to arsenic diminished miR-199a-5p levels largely due to DNA methylation, which was achieved by increased DNA methyltransferase-1 (DNMT1) activity, mediated by the formation of specific protein 1 (Sp1)/DNMT1 complex. In addition to the DNA hypermethylation, arsenic exposure also repressed miR-199a transcription through a transcriptional repressor Sp1. We further identified an association between miR-199a-5p repression and the arsenic-mediated energy metabolic shift, as reflected by mitochondria defects and a switch to glycolysis, in which a glycolytic enzyme pyruvate kinase 2 (PKM2) was a functional target of miR-199a-5p. Taken together, the repression of miR-199a-5p through both Sp1-dependent DNA methylation and Sp1 transcriptional repression promotes an arsenic-mediated metabolic shift from mitochondria respiration to aerobic glycolysis via PKM2.
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Affiliation(s)
- Jun He
- Department of Pathology, Anatomy & Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, United States of America.
| | - Weitao Liu
- Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Xin Ge
- Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Gao-Chan Wang
- Department of Pathology, Anatomy & Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, United States of America
| | - Vilas Desai
- Department of Pharmaceutical Sciences, College of Pharmacy, Thomas Jefferson University, Philadelphia, PA 19107, United States of America
| | - Shaomin Wang
- Department of Pathology, Anatomy & Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, United States of America
| | - Wei Mu
- School of Public Health, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Vikas Bhardwaj
- Department of Pharmaceutical Sciences, College of Pharmacy, Thomas Jefferson University, Philadelphia, PA 19107, United States of America
| | - Erin Seifert
- Department of Pathology, Anatomy & Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, United States of America
| | - Ling-Zhi Liu
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IW 52242, United States of America
| | - Alok Bhushan
- Department of Pharmaceutical Sciences, College of Pharmacy, Thomas Jefferson University, Philadelphia, PA 19107, United States of America
| | - Stephen C Peiper
- Department of Pathology, Anatomy & Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, United States of America
| | - Bing-Hua Jiang
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IW 52242, United States of America.
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Hong L, Wang J, Wang H, Wei S, Zhang F, Han J, Liu Y, Ma M, Liu C, Xu Y, Liu W. Linc‑pint overexpression inhibits the growth of gastric tumors by downregulating HIF‑1α. Mol Med Rep 2019; 20:2875-2881. [PMID: 31524232 DOI: 10.3892/mmr.2019.10531] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 02/19/2019] [Indexed: 11/05/2022] Open
Abstract
Long intergenic non‑protein coding RNA, p53 induced transcript (Linc‑pint) has been reported to be downregulated in various cancer cell lines; however, its expression profile and role in gastric cancer remains unknown. The present study aimed to investigate the involvement of Linc‑pint in gastric cancer. Through quantitative polymerase chain reaction, western blotting and viability assays, it was observed that Linc‑pint expression was significantly downregulated in gastric biopsies from patients with gastric cancer, compared with healthy controls. Conversely, the expression of hypoxia‑inducible factor‑1α (HIF‑1α) mRNA was significantly upregulated in patients with gastric cancer compared with in healthy controls. Using a variety of statistical inference tests, including receiver operating characteristic curve and correlation analyses, it was determined that the expression levels of Linc‑pint and HIF‑1α exhibited a significantly negative correlation in patients with gastric cancer but not in healthy controls. Linc‑pint expression was significantly and inversely associated with tumor size but not tumor metastasis. Linc‑pint overexpression inhibited the proliferation of gastric cancer cells, whereas treatment with exogenous HIF‑1α promoted proliferation. Linc‑pint overexpression downregulated the expression of HIF‑1α, whereas exogenous HIF‑1α did not significantly alter Linc‑pint expression. Furthermore, treatment with exogenous HIF‑1α suppressed the inhibitory effects of Linc‑pint overexpression on the proliferation of gastric cancer cells. In conclusion, overexpression of Linc‑pint may inhibit the growth of gastric tumors via downregulation of HIF‑1α.
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Affiliation(s)
- Lei Hong
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Junyan Wang
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Haijuan Wang
- Examination and Training Center, Health and Family Planning Commission of Hebei, Shijiazhuang, Hebei 050051, P.R. China
| | - Suju Wei
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Fan Zhang
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Jing Han
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Yan Liu
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Minting Ma
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Chengyuan Liu
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Yu Xu
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
| | - Wei Liu
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050019, P.R. China
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50
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lncRNA MALAT1 Accelerates Wound Healing of Diabetic Mice Transfused with Modified Autologous Blood via the HIF-1α Signaling Pathway. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 17:504-515. [PMID: 31344658 PMCID: PMC6658834 DOI: 10.1016/j.omtn.2019.05.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 05/29/2019] [Accepted: 05/29/2019] [Indexed: 12/13/2022]
Abstract
Impaired wound healing is a debilitating complication of diabetes. The long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been recognized to be differentially expressed in various diseases. However, its underlying mechanism in diabetes has not been fully understood. Notably, we aim to examine the expression of MALAT1 in diabetic mice and its role in wound healing involving the hypoxia-inducible factor-1α (HIF-1α) signaling pathway with a modified autologous blood preservative solution reported. A mouse model of diabetes was established. MALAT1 was identified to promote the activation of the HIF-1α signaling pathway and to be enriched in autologous blood through modified preservation, which might facilitate the improvement of physiological function of blood cells. Through gain- or loss-of-function approaches, viability of fibroblasts cultured in high glucose, wound healing of mice, and collagen expression in wound areas were enhanced by MALAT1 and HIF-1α. Taken together, the present study demonstrated that the physiological status of mouse blood was effectively improved by modified autologous blood preservation, which exhibited upregulated MALAT1, thereby accelerating the fibroblast activation and wound healing in diabetic mice via the activation of the HIF-1α signaling pathway. The upregulation of MALAT1 activating the HIF-1α signaling pathway provides a novel insight into drug targets against diabetes.
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