LncRNA FGD5-AS1 functions as an oncogene to upregulate GTPBP4 expression by sponging miR-873-5p in hepatocellular carcinoma

The long non-coding FGD5-AS1 (LncFGD5-AS1) has been reported to be a novel carcinogenic gene and participant in regulating tumor progression by sponging microRNAs (miRNAs). However, the pattern of expression and the biological role of FGD5-AS1 in hepatocellular carcinoma (HCC) remains largely unknown. The expression level of FGD5-AS1 in tumor tissues and cell lines was measured by RT-qPCR. CCK-8, EdU, flow cytometry, wound healing, and transwell chamber assays were performed to investigate the role of FGD5-AS1 in cell proliferation, apoptosis, migration, and invasion in HCC. Dual luciferase reporter, and RNA pull-down assays were performed to identify the regulatory interactions among FGD5-AS1, miR-873-5p and GTP-binding protein 4 (GTPBP4). We found that the expression of FGD5-AS1 was upregulated in HCC tissues and cell lines. Moreover, the knockdown of FGD5-AS1 suppressed cell proliferation, migration and invasion, and induced apoptosis in HCC cells. Further studies demonstrated that FGD5-AS1 could function as a competitive RNA by sponging miR-873-5p in HCC cells. Moreover, GTPBP4 was identified as direct downstream target of miR-873-5p in HCC cells and FGD5-AS1mediated the effects of GTPBP4 by competitively binding with miR-873-5p. Taken together, this study demonstrated the regulatory role of FGD5-AS1 in the progression of HCC and identified the miR-873-5p/GTPBP4 axis as the direct downstream pathway. It represents a promising novel therapeutic strategy for HCC patients.

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Circular RNA hsa_circ_101555 promotes hepatocellular carcinoma cell proliferation and migration by sponging miR-145-5p and regulating CDCA3 expression

Cell Death and Disease ◽

10.1038/s41419-021-03626-7 ◽

2021 ◽

Vol 12 (4) ◽

Author(s):

Xiaoguang Gu ◽

Jianan Zhang ◽

Yajuan Ran ◽

Hena Pan ◽

JinHong Jia ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Biological Effects ◽

Luciferase Reporter ◽

Migration And Invasion ◽

Casein Kinase 1 ◽

Mouse Xenograft Model ◽

Hcc Cells

AbstractCircular RNAs have been reported to play significant roles in regulating pathophysiological processes while also guiding clinical diagnosis and treatment of hepatocellular carcinoma (HCC). However, only a few circRNAs have been identified thus far. Herein, we investigated the role of a specific closed-loop structure of hsa_circ_101555 that was generated by back-splicing of the host gene casein kinase 1 gamma 1 (CSNK1G1) in the development and proliferation of HCC. We investigated the expression of Hsa_circ_101555 in HCC and normal tissues using bioinformatics. The expression level of hsa_circ_101555 was further detected by fluorescence in situ hybridization and qRT-PCR in ten HCC patients. Transwell, migration, WST-1 assays, and colony formation assays were used to evaluate the role of hsa_circ_101555 in HCC development and proliferation. The regulatory mechanisms of hsa_circ_101555 in miR-145-5p and CDCA3 were determined by dual luciferase reporter assay. A mouse xenograft model was also used to determine the effect of hsa_circ_101555 on HCC growth in vivo. hsa_circ_101555 showed greater stability than the linear RNA; while in vitro and in vivo results demonstrated that hsa_circ_101555 silencing significantly suppressed cell proliferation, migration, and invasion of HCC cells. Rescue experiments further demonstrated that suppression of miR-145-5p significantly attenuated the biological effects of hsa_circ_101555 knockdown in HCC cells. We also identified a putative oncogene CDCA3 as a potential miR-145-5p target. Thus, our results demonstrated that hsa_circ_101555 might function as a competing endogenous RNA of miR-145-5p to upregulate CDCA3 expression in HCC. These findings suggest that hsa_circ_101555 may be a potential therapeutic target for patients with HCC.

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LncRNA SLC16A1-AS1 Contributes to the Progression of Hepatocellular Carcinoma Cells by Modulating miR-411/MITD1 Axis

10.21203/rs.3.rs-685514/v1 ◽

2021 ◽

Author(s):

Chun Duan ◽

Bin Quan ◽

Ni Wang ◽

Jianghua Yang ◽

Yan-Lin Yu

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Lines ◽

Carcinoma Cells ◽

Luciferase Reporter ◽

Migration And Invasion ◽

High Morbidity ◽

Transwell Assay ◽

Downstream Target ◽

Common Malignancy ◽

Hcc Cells

Abstract Background: Hepatocellular carcinoma (HCC) is a common malignancy with high morbidity. The current study aimed to explore the molecular mechannism of lncRNA SLC16A1-AS1 in the tumorigenesis of HCC.Material and Methods: The expression of SLC16A1-AS1 and miR-411 were examined in clinical HCC tissues. HCC cell lines Hep3B and Huh-7 were employed and transfected with si-SLC16A1-AS1. The correlation between SLC16A1-AS1 and miR-411 was verified by luciferase reporter assay. Cell viability was detected by CCK-8 assay. Cell migration and invasion capacity were examined by transwell assay. The protein level of MITD1 was analyzed by western blotting.Results: The expression of SLC16A1-AS1 markedly increased in HCC tissues and cell lines. Subsequent studies identified SLC16A1-AS1 as a downstream target of miR-411. In addition, SLC16A1-AS1 knockdown and miR-411 overexpression significantly stagnated progression of HCC cells. SLC16A1-AS1 knockdown also downregulated MITD1 levels. Conclusion: Our findings showed that SLC16A1-AS1 was overexpressed in HCC cells and tissues. SLC16A1-AS1 promoted the malignant characteristics of HCC cells and acted as an oncogene. Its regulatory effect may be associated with miR-411/MITD1 axis. Therefore, SLC16A1-AS1 has a potential be used as a biomarker or therapeutic target for the treatment of HCC.

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SPOCD1 regulated by miR-133a-3p promotes hepatocellular carcinoma invasion and metastasis

Journal of International Medical Research ◽

10.1177/03000605211053717 ◽

2022 ◽

Vol 50 (1) ◽

pp. 030006052110537

Author(s):

Tianying Zheng ◽

Xin Zhang ◽

Yonggang Wang ◽

Aijun Wang

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Cell Lines ◽

Colony Formation ◽

Quantitative Polymerase Chain Reaction ◽

The Cancer Genome Atlas ◽

Luciferase Assay ◽

Luciferase Reporter ◽

Downstream Target

Objective To investigate the tumorigenic role of spen paralogue and orthologue C-terminal domain-containing 1 (SPOCD1) in hepatocellular carcinoma (HCC) and identify the upstream regulatory mechanism. Methods We analyzed SPOCD1 and miR-133-3p expression in normal and HCC tissues from the Cancer Genome Atlas and UALCAN databases, and in normal hepatocytes and HCC cell lines by real-time quantitative polymerase chain reaction and western blot. We identified the miR-133a-3p-binding site on the SPOCD1 3ʹ-untranslated region using TargetScan. Hierarchical regulation was confirmed by luciferase assay and miR-133a-3p overexpression/silencing. Cell proliferation, migration, invasion, and colony formation were assessed by MTT, scratch, transwell, and clonogenic assays, respectively. Results SPOCD1 was highly expressed in HCC tissues and cell lines, while miR-133a-3p expression was significantly downregulated. Kaplan–Meier analysis indicated that high SPOCD1 expression was significantly associated with poor survival. TargetScan and luciferase reporter assay revealed that SPOCD1 was the downstream target of miR-133a-3p. Overexpression of miR-133a-3p significantly inhibited the expression of SPOCD1, while miR-133a-3p knockdown significantly increased SPOCD1 expression. Conclusion SPOCD1, regulated by miR-133a-3p, promotes HCC cell proliferation, migration, invasion, and colony formation. This study provides the first evidence for the role of the miR-133a-3p/SPOCD1 axis in HCC tumorigenesis.

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MiR-3144 Suppresses Cell Proliferation, Migration, Invasion and Promotes Cell Apoptosis by Targeting Steap4 in Hepatocellular Carcinoma

Journal of Biomaterials and Tissue Engineering ◽

10.1166/jbt.2019.2114 ◽

2019 ◽

Vol 9 (8) ◽

pp. 1100-1107

Author(s):

Qiuyuan Shi ◽

Dandan Shen ◽

Yuanjiang Shang

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Cell Lines ◽

Cell Apoptosis ◽

Apoptotic Cell ◽

Luciferase Reporter ◽

Migration And Invasion ◽

Invasion And Migration ◽

Novel Target ◽

Hcc Cells

Background: MicroRNAs (miRNAs) play important roles in the carcinogenesis and progression of hepatocellular carcinoma (HCC). Previous studies have shown that miR-3144 is down-regulated in HCC tissues. The present study investigated the expression and biological roles, underlying mechanisms of miR-3144 in HCC cell lines. Methods and material: RT-qPCR analysis was performed to detect miR-3144 expression in the HCC cell lines and normal hepatic cell line. CCK-8 assay showed that the effect of miR-3144 expression on cell proliferation. Using wound healing assay and Transwell assay to detect the effect of miR-3144 on cell invasion and migration of HCC. Flow cytometry assay showed that miR-3144 induced apoptotic cell death in the SK-HEP-1 cells. Luciferase reporter assay was performed to evaluate the interaction between miR-3144 and the Steap4 3′-UTR. Western blotting assay were performed to investigate the effect of miR-3144 expression on the expression of CDK2, cyclinE1, p21, MMP2, MMP9 and Steap4. Results: MiR-3144 expression was downregulated in HCC cell lines. MiR-3144 overexpression inhibited the proliferation of HCC cells via regulating CDK2, cyclinE1 and p21 in SK-HEP-1 cells. MiR-3144 suppressed the migration and invasion of HCC cells via decreasing the MMP2 and MMP9. Further, miR-3144 promotes cell apoptosis of HCC. Moreover, miR-3144 negatively regulated Steap4 expression by directly binding to the 3′-UTR of Steap4 mRNA. Conclusion: Our results suggested that miR-3144 may be a novel target for future HCC therapy.

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LncRNA GSTM3TV2 Promotes Cell Proliferation and Invasion via miR-597/FOSL2 Axis in Hepatocellular Carcinoma

BioMed Research International ◽

10.1155/2021/3445970 ◽

2021 ◽

Vol 2021 ◽

pp. 1-10

Author(s):

Yuting Hu ◽

Wei Qiu ◽

Zhijun Kong ◽

Siyuan Wu ◽

Yi Liu ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Noncoding Rna ◽

Vital Role ◽

Luciferase Reporter ◽

Migration And Invasion ◽

Tumor Tissues ◽

Reporter Assays ◽

Proliferation And Invasion

Mounting evidence has recently shown that role of long noncoding RNA is critical in many human cancers. lncRNA GSTM3TV2 was first proven to play a vital role in pancreatic cancer. However, the mechanism of lncRNA GSTM3TV2 in hepatocellular carcinoma (HCC) is still uncovered. Here, we object to distinguish the expression of lncRNA GSTM3TV2 and reveal its mechanistic relationship with HCC. We observed that the expression of lncRNA GSTM3TV2 and FOSL2 were upregulated in HCC. Knockdown of lncRNA GSTM3TV2 significantly inhibited cell proliferation. Meanwhile, the migration and invasion of HCC cells were greatly decreased by the downregulated lncRNA GSTM3TV2. The luciferase reporter assays showed that lncRNA GSTM3TV2 could be directly bound to miR-597, and the level of miR-597 was also decreased in the tumor tissues. lncRNA GSTM3TV2 could stabilize FOSL2 expression, resulting in the oncogenic properties of lncRNA GSTM3TV2 in HCC. Our study indicated the oncogenic activities of lncRNA GSTM3TV2 and emphasized the role of the miR-597/FOSL2 signaling pathway.

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miR-96 targets SOX6 and promotes proliferation, migration, and invasion of hepatocellular carcinoma

Biochemistry and Cell Biology ◽

10.1139/bcb-2017-0183 ◽

2018 ◽

Vol 96 (3) ◽

pp. 365-371 ◽

Cited By ~ 10

Author(s):

Zhengwei Li ◽

Ying Wang

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Cell Lines ◽

Luciferase Reporter ◽

Migration And Invasion ◽

Biological Functions ◽

Promote Cell Proliferation ◽

Protein Expressions ◽

Reporter Assays ◽

Hcc Cells

Recent research suggested that microRNA 96 (miR-96) might function as an oncogene in several types of cancers. Therefore, the purpose of this study was to probe into the mechanism of miR-96 in hepatocellular carcinoma (HCC) cells. HCC tissues and non-tumorous tissues, HCC cell lines, and healthy cell lines were all involved in this study. Quantitative real-time PCR (qRT-PCR) and Western blot were used to detect miR-96 and SOX6 mRNA and protein expressions. The direct regulation of miR96 on SOX6 was confirmed by luciferase reporter assays. Cell proliferation and growth were determined by MTT (3-(4,5-dimethyl–2-thiazolyl)–2,5-diphenyl–2-H-tetrazolium bromide) assay and colony formation assay. Wound healing and transwell assay were employed for migration and invasion analyses. Finally, SPSS 21.0 and GraphPad 7.0 were applied for statistical analyses. In HCC tissues, miR-96 was highly expressed while SOX6 was lowly expressed. The overexpression of miR-96 reversely inhibited the expression of SOX6, contributing to the promotion of the biological functions of HCC cells. miR-96 could promote cell proliferation, migration, and invasion in HCC by targeting SOX6.

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HOXA-AS2 Promotes Proliferation and Induces Epithelial-Mesenchymal Transition via the miR-520c-3p/GPC3 Axis in Hepatocellular Carcinoma

Cellular Physiology and Biochemistry ◽

10.1159/000495056 ◽

2018 ◽

Vol 50 (6) ◽

pp. 2124-2138 ◽

Cited By ~ 14

Author(s):

Ying Zhang ◽

Jianliang Xu ◽

Shaoquan Zhang ◽

Jun An ◽

Jin Zhang ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Cell Lines ◽

Luciferase Reporter Assay ◽

Luciferase Reporter ◽

Migration And Invasion ◽

Reporter Assay ◽

Online Programs ◽

Hcc Cells

Background/Aims: Previous studies have demonstrated that long non-coding RNAs (lncRNAs) may play critical roles in cancer biology, including Hepatocellular carcinoma (HCC). The HOXA cluster antisense RNA2 (HOXA-AS2) lncRNA plays an important role in carcinogenesis, however, the underlying role of HOXA-AS2 in HCC remains unknown. The present study examined the effects of HOXA-AS2 on the progression of HCC, and explored the underlying molecular mechanisms. Methods: Quantitative real-time PCR was used to detect HOXA-AS2 expression in HCC tissues and cell lines. Furthermore, the effects of HOXA-AS2 silencing and overexpression on cell proliferation, cell cycle, apoptosis, migration, and invasion were assessed in HCC in vitro and in vivo. Furthermore, bioinformatics online programs predicted and luciferase reporter assay were used to validate the association of HOXA-AS2 and miR-520c-3p in HCC cells. Results: We observed that HOXA-AS2 was up-regulated in HCC tissues and cell lines. In vitro experiments revealed that HOXA-AS2 knockdown significantly inhibited HCC cells proliferation by causing G1 arrest and promoting apoptosis, whereas HOXA-AS2 overexpression promoted cell growth. Further functional assays indicated that HOXA-AS2 significantly promoted HCC cell migration and invasion by promoting EMT. Bioinformatics online programs predicted that HOXA-AS2 sponge miR-520c-3p at 3’-UTR with complementary binding sites, which was validated using luciferase reporter assay. HOXA-AS2 could negatively regulate the expression of miR-520c-3p in HCC cells. MiR-520c-3p was down-regulated and inversely correlated with HOXA-AS2 expression in HCC tissues. miR-520c-3p suppressed cell proliferation, invasion and migration in HCC cells, and enforced expression of miR-520c-3p attenuated the oncogenic effects of HOXA-AS2 in HCC cells. By bioinformatic analysis and dual-luciferase reporter assay, we found that miR-223-3p directly targeted the 3’-untranslated region (UTR) of Glypican-3 (GPC3), one of the key players in HCC. GPC3 was up-regulated in HCC tissues, and was negatively correlated with miR-520c-3p expression and positively correlated with HOXA-AS2 expression. Conclusion: In summary, our results suggested that the HOXA-AS2/miR-520c-3p/GPC3 axis may play an important role in the regulation of PTC progression, which could serve as a biomarker and therapeutic target for HCC.

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KLF7/VPS35 axis contributes to hepatocellular carcinoma progression through CCDC85C-activated β-catenin pathway

Cell & Bioscience ◽

10.1186/s13578-021-00585-6 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Yarong Guo ◽

Bao Chai ◽

Junmei Jia ◽

Mudan Yang ◽

Yanjun Li ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Tumor Growth ◽

Luciferase Reporter ◽

Aberrant Expression ◽

Proliferation And Invasion ◽

Hcc Cells

Abstract Objective Dysregulation of KLF7 participates in the development of various cancers, but it is unclear whether there is a link between HCC and aberrant expression of KLF7. The aim of this study was to investigate the role of KLF7 in proliferation and migration of hepatocellular carcinoma (HCC) cells. Methods CCK8, colony growth, transwell, cell cycle analysis and apoptosis detection were performed to explore the effect of KLF7, VPS35 and Ccdc85c on cell function in vitro. Xenografted tumor growth was used to assess in vivo role of KLF7. Chip-qPCR and luciferase reporter assays were applied to check whether KLF7 regulated VPS35 at transcriptional manner. Co-IP assay was performed to detect the interaction between VPS35 and Ccdc85c. Immunohistochemical staining and qRT-PCR analysis were performed in human HCC sampels to study the clinical significance of KLF7, VPS35 and β-catenin. Results Firstly, KLF7 was highly expressed in human HCC samples and correlated with patients’ differentiation and metastasis status. KLF7 overexpression contributed to cell proliferation and invasion of HCC cells in vitro and in vivo. KLF7 transcriptional activation of VPS35 was necessary for HCC tumor growth and metastasis. Further, co-IP studies revealed that VPS35 could interact with Ccdc85c in HCC cells. Rescue assay confirmed that overexpression of VPS35 and knockdown of Ccdc85c abolished the VPS35-medicated promotion effect on cell proliferation and invasion. Finally, KLF7/VPS35 axis regulated Ccdc85c, which involved in activation of β-catenin signaling pathway, confirmed using β-catenin inhibitor, GK974. Functional studies suggested that downregulation of Ccdc85c partly reversed the capacity of cell proliferation and invasion in HCC cells, which was regulated by VPS35 upregulation. Lastly, there was a positive correlation among KLF7, VPS35 and active-β-catenin in human HCC patients. Conclusion We demonstrated that KLF7/VPS35 axis promoted HCC cell progression by activating Ccdc85c-medicated β-catenin pathway. Targeting this signal axis might be a potential treatment strategy for HCC.

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Long non-coding RNA CCDC183-AS1 acts AS a miR-589-5p sponge to promote the progression of hepatocellular carcinoma through regulating SKP1 expression

Journal of Experimental & Clinical Cancer Research ◽

10.1186/s13046-021-01861-6 ◽

2021 ◽

Vol 40 (1) ◽

Author(s):

He Zhu ◽

Hongwei Zhang ◽

Youliang Pei ◽

Zhibin Liao ◽

Furong Liu ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Cell Lines ◽

Human Cancer ◽

Quantitative Polymerase Chain Reaction ◽

Luciferase Reporter ◽

Migration And Invasion ◽

High Morbidity ◽

Regulatory Relationship

Abstract Background Hepatocellular carcinoma (HCC) is a common type of malignant human cancer with high morbidity and poor prognosis, causing numerous deaths per year worldwide. Growing evidence has been demonstrated that long non-coding RNAs (lncRNAs) are closely associated with hepatocarcinogenesis and metastasis. However, the roles, functions, and working mechanisms of most lncRNAs in HCC remain poorly defined. Methods Real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression level of CCDC183-AS1 in HCC tissues and cell lines. Cell proliferation, migration and invasion ability were evaluated by CCK-8 and transwell assay, respectively. Animal experiments were used to explore the role of CCDC183-AS1 and miR-589-5p in vivo. Bioinformatic analysis, dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were performed to confirm the regulatory relationship between CCDC183-AS1, miR-589-5p and SKP1. Results Significantly upregulated expression of CCDC183-AS1 was observed in both HCC tissues and cell lines. HCC patients with higher expression of CCDC183-AS1 had a poorer overall survival rate. Functionally, overexpression of CCDC183-AS1 markedly promoted HCC cell proliferation, migration and invasion in vitro and tumor growth and metastasis in vivo, whereas the downregulation of CCDC183-AS1 exerted opposite effects. MiR-589-5p inhibitor counteracted the proliferation, migration and invasion inhibitory effects induced by CCDC183-AS1 silencing. Mechanistically, CCDC183-AS1 acted as a ceRNA through sponging miR-589-5p to offset its inhibitory effect on the target gene SKP1, then promoted the tumorigenesis of HCC. Conclusions CCDC183-AS1 functions as an oncogene to promote HCC progression through the CCDC183-AS1/miR-589-5p/SKP1 axis. Our study provided a novel potential therapeutic target for HCC patients.

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Long Non-Coding RNA PVT1/miR-150/ HIG2 Axis Regulates the Proliferation, Invasion and the Balance of Iron Metabolism of Hepatocellular Carcinoma

Cellular Physiology and Biochemistry ◽

10.1159/000493445 ◽

2018 ◽

Vol 49 (4) ◽

pp. 1403-1419 ◽

Cited By ~ 21

Author(s):

Yunxiuxiu Xu ◽

Xinxi Luo ◽

Wenguang He ◽

Guangcheng Chen ◽

Yanshan Li ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Cell Proliferation ◽

Cell Lines ◽

Iron Metabolism ◽

Cell Apoptosis ◽

Luciferase Reporter ◽

Migration And Invasion ◽

Non Coding Rna ◽

Long Non Coding Rna

Background/Aims: To investigate the biological roles and underlying molecular mechanisms of long non-coding RNA (lncRNA) PVT1 in Hepatocellular carcinoma (HCC). Methods: qRT-PCR was performed to measure the expression of miRNA and mRNA. Western blot was performed to measure the protein expression. CCK-8 assay was performed to determine cell proliferation. Flow cytometry was performed to detect cell apoptosis. Wounding-healing assay and Transwell assay was performed to detect cell migration and invasion. Dual luciferase reporter assay was performed to verify the target relationship. Quantichrom iron assay was performed to check uptake level of cellular iron. Results: PVT1 expression was up-regulated in HCC tissues and cell lines. Function studies revealed that PVT1 knockdown significantly suppressed cell proliferation, migration and invasion, and induced cell apoptosis in vitro. Furthermore, PVT1 could directly bind to microRNA (miR)-150 and down-regulate miR-150 expression. Hypoxia-inducible protein 2 (HIG2) was found to be one target gene of miR-150, and PVT1 knockdown could inhibit the expression of HIG2 through up-regulating miR-150 expression. In addition, the expression of miR-150 was down-regulated, while the expression of HIG2 was up-regulated in HCC tissues and cell lines. Moreover, inhibition of miR-150 could partly reverse the biological effects of PVT1 knockdown on proliferation, motility, apoptosis and iron metabolism in vitro, which might be associated with dysregulation of HIG2. In vivo results showed that PVT1 knockdown suppressed tumorigenesis and iron metabolism disorder by regulating the expression of miR-150 and HIG2. Conclusion: Taken together, the present study demonstrates that PVT1/miR-150/HIG2 axis may lead to a better understanding of HCC pathogenesis and provide potential therapeutic targets for HCC.

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