1
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Chen Q, Xing C, Zhang Q, Du Z, Kong J, Qian Z. PDE1B, a potential biomarker associated with tumor microenvironment and clinical prognostic significance in osteosarcoma. Sci Rep 2024; 14:13790. [PMID: 38877061 PMCID: PMC11178771 DOI: 10.1038/s41598-024-64627-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024] Open
Abstract
PDE1B had been found to be involved in various diseases, including tumors and non-tumors. However, little was known about the definite role of PDE1B in osteosarcoma. Therefore, we mined public data on osteosarcoma to reveal the prognostic values and immunological roles of the PDE1B gene. Three osteosarcoma-related datasets from online websites were utilized for further data analysis. R 4.3.2 software was utilized to conduct difference analysis, prognostic analysis, gene set enrichment analysis (GSEA), nomogram construction, and immunological evaluations, respectively. Experimental verification of the PDE1B gene in osteosarcoma was conducted by qRT-PCR and western blot, based on the manufacturer's instructions. The PDE1B gene was discovered to be lowly expressed in osteosarcoma, and its low expression was associated with poor OS (all P < 0.05). Experimental verifications by qRT-PCR and western blot results remained consistent (all P < 0.05). Univariate and multivariate Cox regression analyses indicated that the PDE1B gene had independent abilities in predicting OS in the TARGET osteosarcoma dataset (both P < 0.05). GSEA revealed that PDE1B was markedly linked to the calcium, cell cycle, chemokine, JAK STAT, and VEGF pathways. Moreover, PDE1B was found to be markedly associated with immunity (all P < 0.05), and the TIDE algorithm further shed light on that patients with high-PDE1B expression would have a better immune response to immunotherapies than those with low-PDE1B expression, suggesting that the PDE1B gene could prevent immune escape from osteosarcoma. The PDE1B gene was found to be a tumor suppressor gene in osteosarcoma, and its high expression was related to a better OS prognosis, suppressing immune escape from osteosarcoma.
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Affiliation(s)
- Qingzhong Chen
- Department of Hand Surgery, Affiliated Hospital and Medical School of Nantong University, No.20 West Temple Road, Nantong, 226001, Jiangsu Province, China
| | - Chunmiao Xing
- Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Qiaoyun Zhang
- Department of Hand Surgery, Affiliated Hospital and Medical School of Nantong University, No.20 West Temple Road, Nantong, 226001, Jiangsu Province, China
| | - Zhijun Du
- Department of Pediatric Surgery, Affiliated Maternity and Child Healthcare Hospital of Nantong University, No.399 Century Avenue, Nantong, 226001, Jiangsu Province, China
| | - Jian Kong
- Department of Pediatric Surgery, Affiliated Maternity and Child Healthcare Hospital of Nantong University, No.399 Century Avenue, Nantong, 226001, Jiangsu Province, China.
| | - Zhongwei Qian
- Department of Hand Surgery, Affiliated Hospital and Medical School of Nantong University, No.20 West Temple Road, Nantong, 226001, Jiangsu Province, China.
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2
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Mendoza SV, Genetos DC, Yellowley CE. Hypoxia-Inducible Factor-2α Signaling in the Skeletal System. JBMR Plus 2023; 7:e10733. [PMID: 37065626 PMCID: PMC10097641 DOI: 10.1002/jbm4.10733] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/23/2023] [Accepted: 01/29/2023] [Indexed: 02/13/2023] Open
Abstract
Hypoxia-inducible factors (HIFs) are oxygen-dependent heterodimeric transcription factors that mediate molecular responses to reductions in cellular oxygen (hypoxia). HIF signaling involves stable HIF-β subunits and labile, oxygen-sensitive HIF-α subunits. Under hypoxic conditions, the HIF-α subunit is stabilized, complexes with nucleus-confined HIF-β subunit, and transcriptionally regulates hypoxia-adaptive genes. Transcriptional responses to hypoxia include altered energy metabolism, angiogenesis, erythropoiesis, and cell fate. Three isoforms of HIF-α-HIF-1α, HIF-2α, and HIF-3α-are found in diverse cell types. HIF-1α and HIF-2α serve as transcriptional activators, whereas HIF-3α restricts HIF-1α and HIF-2α. The structure and isoform-specific functions of HIF-1α in mediating molecular responses to hypoxia are well established across a wide range of cell and tissue types. The contributions of HIF-2α to hypoxic adaptation are often unconsidered if not outrightly attributed to HIF-1α. This review establishes what is currently known about the diverse roles of HIF-2α in mediating the hypoxic response in skeletal tissues, with specific focus on development and maintenance of skeletal fitness. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Sarah V Mendoza
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary MedicineUniversity of California, DavisDavisCAUSA
| | - Damian C Genetos
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary MedicineUniversity of California, DavisDavisCAUSA
| | - Clare E Yellowley
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary MedicineUniversity of California, DavisDavisCAUSA
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3
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Zhang Y, He R, Lei X, Mao L, Yin Z, Zhong X, Cao W, Zheng Q, Li D. Comprehensive Analysis of a Ferroptosis-Related lncRNA Signature for Predicting Prognosis and Immune Landscape in Osteosarcoma. Front Oncol 2022; 12:880459. [PMID: 35837104 PMCID: PMC9273977 DOI: 10.3389/fonc.2022.880459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/25/2022] [Indexed: 12/19/2022] Open
Abstract
Research on the implications of ferroptosis in tumors has increased rapidly in the last decades. There are evidences that ferroptosis is involved in several aspects of cancer biology, including tumor progression, metastasis, immunomodulation, and therapeutic response. Nonetheless, the interaction between ferroptosis-related lncRNAs (FRLs) and the osteosarcoma immune microenvironment is poorly understood. In this study, a risk model composed of FRLs was developed using univariate and LASSO Cox regression analyses. On the basis of this model, FRL scores were calculated to systematically explore the role of the model in predicting the prognosis and immune characteristics of osteosarcoma patients. Survival analysis showed that osteosarcoma samples with lower FRL-score had better overall survival. After predicting the abundance of immune cells in osteosarcoma microenvironment by single-sample gene-set enrichment analysis (ssGSEA) and ESTIMATE analysis, we found that the FRL-score could distinguish immune function, immune score, stromal score, tumor purity, and tumor infiltration of immune cells in different osteosarcoma patients. In addition, FRL-score was also associated with immune checkpoint gene expression and half-maximal inhibitory concentration of chemotherapeutic agents. Finally, we confirmed that knockdown of RPARP-AS1 suppressed the malignant activity of osteosarcoma cells in vitro experiments. In general, the FRL-based prognostic signature could promote our understanding of the immune microenvironment characteristics of osteosarcoma and guide more effective treatment regimens.
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Affiliation(s)
- Yiming Zhang
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Rong He
- Cancer Institute, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Xuan Lei
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Lianghao Mao
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhengyu Yin
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xinyu Zhong
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Wenbing Cao
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Qiping Zheng
- Department of Hematological Laboratory Science, Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
- Shenzhen Academy of Peptide Targeting Technology at Pingshan, and Shenzhen Tyercan Bio-Pharm Co., Ltd., Shenzhen, China
- *Correspondence: Dapeng Li, ; Qiping Zheng,
| | - Dapeng Li
- Department of Orthopedics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- *Correspondence: Dapeng Li, ; Qiping Zheng,
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Li ZF, Meng DD, Liu YY, Bi FG, Tian K, Xu JZ, Sun JG, Gu CX, Li Y. Hypoxia inducible factor-3α promotes osteosarcoma progression by activating KDM3A-mediated demethylation of SOX9. Chem Biol Interact 2022; 351:109759. [PMID: 34826399 DOI: 10.1016/j.cbi.2021.109759] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/03/2021] [Accepted: 11/21/2021] [Indexed: 12/11/2022]
Abstract
Hypoxia/oxygen-sensing signally is closely associated with many tumor progressions, including osteosarcoma (OS). Previous research principally focused on the function of hypoxia-inducible factor (HIF)-1α and HIF-2α as the major hypoxia-associated transcription factors in OS, however, the role of HIF-3α has not been investigated. Our study found that HIF-3α was upregulated in OS tissues and cell lines. HIF-3α overexpression facilitated cell proliferation and invasion, and inhibited apoptosis, whereas HIF-3α knockdown showed the opposite results. Chromatin immunoprecipitation analysis revealed that lysine demethylase 3A (KDM3A) expression was transcriptionally activated by HIF-3α under hypoxia, and KDM3A occupied the SRY-box transcription factor 9 (SOX9) gene promoter region through H3 lysine 9 dimethylation (H3K9me2). Additionally, rescue results revealed that KDM3A or SOX9 overexpression reversed the effects of HIF-3α silence on cell functions. The Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) pathway inhibitor cucurbitacin I suppressed the promotive effects of HIF-3α overexpression on cell proliferation, invasion and TAK2/STAT3 pathway. Finally, OS cell line MG-63 transfected with HIF-3α short hairpin RNA (HIF-3α shRNA) were subcutaneously injected into nude mice, and the results found that HIF-3α knockdown significantly inhibited the xenograft tumor growth of OS in vivo. In conclusion, this study reveals that HIF-3α promotes OS progression in vitro and in vivo by activating KDM3A-mediated SOX9 promoter demethylation, which may provide a potential therapeutic mechanism for OS.
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Affiliation(s)
- Zhi-Fu Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China.
| | - Dong-Dong Meng
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
| | - Yong-Yi Liu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
| | - Fang-Gang Bi
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
| | - Ke Tian
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
| | - Jian-Zhong Xu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
| | - Jian-Guang Sun
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
| | - Chen-Xi Gu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
| | - Yu Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
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Pierrevelcin M, Fuchs Q, Lhermitte B, Messé M, Guérin E, Weingertner N, Martin S, Lelong-Rebel I, Nazon C, Dontenwill M, Entz-Werlé N. Focus on Hypoxia-Related Pathways in Pediatric Osteosarcomas and Their Druggability. Cells 2020; 9:cells9091998. [PMID: 32878021 PMCID: PMC7564372 DOI: 10.3390/cells9091998] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 08/21/2020] [Accepted: 08/22/2020] [Indexed: 12/17/2022] Open
Abstract
Osteosarcoma is the most frequent primary bone tumor diagnosed during adolescence and young adulthood. It is associated with the worst outcomes in the case of poor response to chemotherapy and in metastatic disease. While no molecular biomarkers are clearly and currently associated with those worse situations, the study of pathways involved in the high level of tumor necrosis and in the immune/metabolic intra-tumor environment seems to be a way to understand these resistant and progressive osteosarcomas. In this review, we provide an updated overview of the role of hypoxia in osteosarcoma oncogenesis, progression and during treatment. We describe the role of normoxic/hypoxic environment in normal tissues, bones and osteosarcomas to understand their role and to estimate their druggability. We focus particularly on the role of intra-tumor hypoxia in osteosarcoma cell resistance to treatments and its impact in its endogenous immune component. Together, these previously published observations conduct us to present potential perspectives on the use of therapies targeting hypoxia pathways. These therapies could afford new treatment approaches in this bone cancer. Nevertheless, to study the osteosarcoma cell druggability, we now need specific in vitro models closely mimicking the tumor, its intra-tumor hypoxia and the immune microenvironment to more accurately predict treatment efficacy and be complementary to mouse models.
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Affiliation(s)
- Marina Pierrevelcin
- Laboratory of Bioimaging and Pathologies, UMR CNRS 7021, 67405 Illkirch, France; (M.P.); (Q.F.); (B.L.); (M.M.); (S.M.); (I.L.-R.); (M.D.)
| | - Quentin Fuchs
- Laboratory of Bioimaging and Pathologies, UMR CNRS 7021, 67405 Illkirch, France; (M.P.); (Q.F.); (B.L.); (M.M.); (S.M.); (I.L.-R.); (M.D.)
| | - Benoit Lhermitte
- Laboratory of Bioimaging and Pathologies, UMR CNRS 7021, 67405 Illkirch, France; (M.P.); (Q.F.); (B.L.); (M.M.); (S.M.); (I.L.-R.); (M.D.)
- Pathology Department, University Hospital of Strasbourg, 67098 Strasbourg, France;
| | - Melissa Messé
- Laboratory of Bioimaging and Pathologies, UMR CNRS 7021, 67405 Illkirch, France; (M.P.); (Q.F.); (B.L.); (M.M.); (S.M.); (I.L.-R.); (M.D.)
| | - Eric Guérin
- Oncobiology, Laboratory of Biochemistry and Molecular Biology, University Hospital of Strasbourg, 67098 Strasbourg, France;
| | - Noelle Weingertner
- Pathology Department, University Hospital of Strasbourg, 67098 Strasbourg, France;
| | - Sophie Martin
- Laboratory of Bioimaging and Pathologies, UMR CNRS 7021, 67405 Illkirch, France; (M.P.); (Q.F.); (B.L.); (M.M.); (S.M.); (I.L.-R.); (M.D.)
| | - Isabelle Lelong-Rebel
- Laboratory of Bioimaging and Pathologies, UMR CNRS 7021, 67405 Illkirch, France; (M.P.); (Q.F.); (B.L.); (M.M.); (S.M.); (I.L.-R.); (M.D.)
| | - Charlotte Nazon
- Pediatric Oncohematology Unit, University Hospital of Strasbourg, 67098 Strasbourg, France;
| | - Monique Dontenwill
- Laboratory of Bioimaging and Pathologies, UMR CNRS 7021, 67405 Illkirch, France; (M.P.); (Q.F.); (B.L.); (M.M.); (S.M.); (I.L.-R.); (M.D.)
| | - Natacha Entz-Werlé
- Laboratory of Bioimaging and Pathologies, UMR CNRS 7021, 67405 Illkirch, France; (M.P.); (Q.F.); (B.L.); (M.M.); (S.M.); (I.L.-R.); (M.D.)
- Pediatric Oncohematology Unit, University Hospital of Strasbourg, 67098 Strasbourg, France;
- Correspondence: ; Tel.: +33-3-8812-8396; Fax: +33-3-8812-8092
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Sun W, Wang B, Qu XL, Zheng BQ, Huang WD, Sun ZW, Wang CM, Chen Y. Metabolism of Reactive Oxygen Species in Osteosarcoma and Potential Treatment Applications. Cells 2019; 9:cells9010087. [PMID: 31905813 PMCID: PMC7017125 DOI: 10.3390/cells9010087] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/15/2019] [Accepted: 12/17/2019] [Indexed: 01/08/2023] Open
Abstract
Background: The present study was designed to explore the underlying role of hypoxia-inducible factor 1α (HIF-1α) in reactive oxygen species (ROS) formation and apoptosis in osteosarcoma (OS) cells induced by hypoxia. Methods: In OS cells, ROS accumulated and apoptosis increased within 24 h after exposure to low HIF-1α expression levels. A co-expression analysis showed that HIF was positively correlated with Forkhead box class O1 (FoxO1) expression and negatively correlated with CYP-related genes from the National Center for Biotechnology Information’s Gene Expression Omnibus (NCBI GEO) datasets. Hypoxia also considerably increased HIF-1α and FoxO1 expression. Moreover, the promoter region of FoxO1 was directly regulated by HIF-1α. We inhibited HIF-1α via siRNA and found that the ROS accumulation and apoptosis induced by hypoxia in OS cells decreased. In this study, a murine xenograft model of BALB-c nude mice was adopted to test tumour growth and measure the efficacy of 2-ME + As2O3 treatment. Results: Ad interim knockdown of HIF-1α also inhibited manganese-dependent superoxide dismutase (MnSOD), catalase and sestrin 3 (Sesn3) expression in OS cells. Furthermore, hypoxia-induced ROS formation and apoptosis in OS cells were associated with CYP450 protein interference and were ablated by HIF-1α silencing via siRNA. Conclusions: Our data reveal that HIF-1α inhibits ROS accumulation by directly regulating FoxO1 in OS cells, which induces MnSOD, catalase and Sesn3 interference, thus resulting in anti-oxidation effects. The combination of an HIF-1α inhibitor (2-mercaptoethanol,2-ME) and ROS inducer (arsenous oxide, As2O3) can prohibit proliferation and migration and promote apoptosis in MG63 cells in vitro while inhibiting tumour growth in vivo.
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Affiliation(s)
- Wei Sun
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Centre, Department of Oncology, Fudan University Shanghai Medical School, Shanghai 200032, China; (W.S.); (B.-Q.Z.); (W.-D.H.); (Z.-W.S.); (C.-M.W.)
| | - Bing Wang
- Department of Oncological Surgery, Minhang Branch, Shanghai Cancer Center, Fudan University, Shanghai 200240, China; (B.W.); (X.-L.Q.)
| | - Xing-Long Qu
- Department of Oncological Surgery, Minhang Branch, Shanghai Cancer Center, Fudan University, Shanghai 200240, China; (B.W.); (X.-L.Q.)
| | - Bi-Qiang Zheng
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Centre, Department of Oncology, Fudan University Shanghai Medical School, Shanghai 200032, China; (W.S.); (B.-Q.Z.); (W.-D.H.); (Z.-W.S.); (C.-M.W.)
| | - Wen-Ding Huang
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Centre, Department of Oncology, Fudan University Shanghai Medical School, Shanghai 200032, China; (W.S.); (B.-Q.Z.); (W.-D.H.); (Z.-W.S.); (C.-M.W.)
| | - Zheng-Wang Sun
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Centre, Department of Oncology, Fudan University Shanghai Medical School, Shanghai 200032, China; (W.S.); (B.-Q.Z.); (W.-D.H.); (Z.-W.S.); (C.-M.W.)
| | - Chun-Meng Wang
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Centre, Department of Oncology, Fudan University Shanghai Medical School, Shanghai 200032, China; (W.S.); (B.-Q.Z.); (W.-D.H.); (Z.-W.S.); (C.-M.W.)
| | - Yong Chen
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Centre, Department of Oncology, Fudan University Shanghai Medical School, Shanghai 200032, China; (W.S.); (B.-Q.Z.); (W.-D.H.); (Z.-W.S.); (C.-M.W.)
- Correspondence: ; Tel.: +86-180-1731-7571
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7
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Wang X, Hu Z, Wang Z, Cui Y, Cui X. Angiopoietin-like protein 2 is an important facilitator of tumor proliferation, metastasis, angiogenesis and glycolysis in osteosarcoma. Am J Transl Res 2019; 11:6341-6355. [PMID: 31737187 PMCID: PMC6834488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
Background: Solid tumors are often exposed to hypoxia. Hypoxia inducible factor (HIF-1α) upregulates numerous target genes associated with the malignant behavior of hypoxic cancer cells. Angiopoietin-like protein 2 (Angptl2), a member of the angiopoietin family, is a hypoxia-inducible gene. However, the role and potential mechanism of Angptl2, and the relationship between Angptl2 and hypoxia in osteosarcoma (OS) remain unclear. Methods: In this study, quantitative RT-PCR was performed to detect the levels of Angptl2 and HIF-1α, and western blot assay was performed to measure the expression of Angptl2, HIF-1α, CDK2, cyclin E1, P21, MMP2, MMP9, VEGFA, Ang II and HK2 in osteosarcoma cells and tissue. Subsequently, cell viability and cycle were analyzed using CCK-8 and flow cytometer assays. Cell migration, invasion and glycolysis were analyzed with Transwell, Scratch Test and glucose/lactic acid detection kits, respectively. Experiments in vivo were performed to value the effects of Angptl2 on the growth of osteosarcoma xenografts in mice. Immunofluorescent and immunohistochemistry staining were conducted to detect the expression of Ki-67 and Angptl2, respectively. Results: The results demonstrated that Angptl2 was highly expressed in OS cells, which was induced by hypoxia (HIF-1α). Additionally, Angptl2 overexpression regulated cell proliferation, invasion, migration and G1 phase arrest in OS cells. Moreover, Angptl2 promoted OS tumor growth in vivo tumor xenografts. Angptl2 might enhance angiogenesis and glycolysis by promoting VEGFA, Ang II and HK2 both in vitro and in vivo. Conclusion: In conclusion, the present findings indicated that hypoxia-induced Angptl2 expression was independent of HIF-1α in hypoxic OS cells. Angptl2 might promote OS cell proliferation, metastasis, angiogenesis and glycolysis, which could be regarded as a favorable marker for predicting a long survival time in patients with OS.
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Affiliation(s)
- Xiuhui Wang
- Department of Orthopedics, Zhoupu Hospital Affiliated to Shanghai University of Medicine and Health SciencesShanghai 201318, China
| | - Zhaohui Hu
- Department of Orthopedics, Liuzhou People’s HospitalNo. 8 Wenchang Road, Liuzhou 545006, Guangxi, China
| | - Zhe Wang
- Department of Orthopedics, Zhongshan Hospital, Fudan UniversityShanghai 200032, China
| | - Yin Cui
- Department of Orthopedics, Zhoupu Hospital Affiliated to Shanghai University of Medicine and Health SciencesShanghai 201318, China
| | - Xu Cui
- Department of Orthopedics, Zhoupu Hospital Affiliated to Shanghai University of Medicine and Health SciencesShanghai 201318, China
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Yao R, Xu L, Wei B, Qian Z, Wang J, Hui H, Sun Y. miR-142-5p regulates pancreatic cancer cell proliferation and apoptosis by regulation of RAP1A. Pathol Res Pract 2019; 215:152416. [PMID: 31047726 DOI: 10.1016/j.prp.2019.04.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/27/2019] [Accepted: 04/16/2019] [Indexed: 12/17/2022]
Abstract
Pancreatic cancer, one of the fatal and aggressive malignancies, leads the sixth cancer-associated death in China. microRNAs are believed to exert function in the diagnosis and treatment of pancreatic cancer. In the present study, we firstly found that miR-142-5p was downregulated in pancreatic cancer tumor tissues while Ras-related protein Rap-1 A (RAP1A) was upregulated compared with para-carcinoma non-tumor tissues. Then, we found that RAP1A could be a putative target gene of miR-142-5p by bioinformatics tool TargetScan. Furthermore, we conducted luciferase reporter assay, RT-qPCR, western blot and correlation analysis to demonstrate that miR-142-5p could negatively regulate RAP1A expression by binding to its 3'UTR. In addition, cell-counting kit 8 (CCK-8) and flow cytometry assays certified that miR-142-5p overexpression may inhibit pancreatic cancer cell proliferation but promote cell apoptosis; while the variation could be reversed by co-transfected with pcDNA3.1-RAP1A. Finally, miR-142-5p overexpression downregulated p-ERK1/2, phosphate p38 mitogen-activated protein kinases (p-p38); however, the variation induced by miR-142-5p mimic could be reversed by co-transfected with pcDNA3.1-RAP1A. In conclusion, our findings indicate that targeting miR-142-5p may provide a novel strategy for the treatment of pancreatic cancer.
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Affiliation(s)
- Rong Yao
- Department of Medical Oncology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China
| | - Lijuan Xu
- Department of Medical Oncology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China
| | - Bin Wei
- Department of Medical Oncology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China
| | - Zhaoye Qian
- Department of Medical Oncology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China
| | - Jiru Wang
- Department of Medical Oncology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China
| | - Hongxia Hui
- Department of Medical Oncology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China
| | - Yuan Sun
- Department of Medical Oncology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huaian, 223300, Jiangsu, China.
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9
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Murugesan T, Rajajeyabalachandran G, Kumar S, Nagaraju S, Jegatheesan SK. Targeting HIF-2α as therapy for advanced cancers. Drug Discov Today 2018; 23:1444-1451. [DOI: 10.1016/j.drudis.2018.05.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/27/2018] [Accepted: 05/02/2018] [Indexed: 12/14/2022]
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10
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Zhang T, Kastrenopoulou A, Larrouture Q, Athanasou NA, Knowles HJ. Angiopoietin-like 4 promotes osteosarcoma cell proliferation and migration and stimulates osteoclastogenesis. BMC Cancer 2018; 18:536. [PMID: 29739381 PMCID: PMC5941625 DOI: 10.1186/s12885-018-4468-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 04/30/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Osteosarcoma is the most common primary bone cancer in children and young adults. It is highly aggressive and patients that present with metastasis have a poor prognosis. Angiopoietin-like 4 (ANGPTL4) drives the progression and metastasis of many solid tumours, but has not been described in osteosarcoma tissue. ANGPTL4 also enhances osteoclast activity, which is required for osteosarcoma growth in bone. We therefore investigated the expression and function of ANGPTL4 in human osteosarcoma tissue and cell lines. METHODS Expression of ANGPTL4 in osteosarcoma tissue microarrays was determined by immunohistochemistry. Hypoxic secretion of ANGPTL4 was tested by ELISA and Western blot. Regulation of ANGPTL4 by hypoxia-inducible factor (HIF) was investigated using isoform specific HIF siRNA (HIF-1α, HIF-2α). Effects of ANGPTL4 on cell proliferation, migration (scratch wound assay), colony formation and osteoblastogenesis were assessed using exogenous ANGPTL4 or cells stably transfected with ANGPTL4. Osteoclastogenic differentiation of CD14+ monocytes was assessed by staining for tartrate-resistant acid phosphatase (TRAP), bone resorption was assessed by lacunar resorption of dentine. RESULTS ANGPTL4 was immunohistochemically detectable in 76/109 cases. ANGPTL4 was induced by hypoxia in 6 osteosarcoma cell lines, under the control of the HIF-1α transcription factor. MG-63 cells transfected with an ANGPTL4 over-expression plasmid exhibited increased proliferation and migration capacity and promoted osteoclastogenesis and osteoclast-mediated bone resorption. Individually the full-length form of ANGPTL4 could increase MG-63 cell proliferation, whereas N-terminal ANGPTL4 mediated the other pro-tumourigenic phenotypes. CONCLUSIONS This study describes a role(s) for ANGPTL4 in osteosarcoma and identifies ANGPTL4 as a treatment target that could potentially reduce tumour progression, inhibit angiogenesis, reduce bone destruction and prevent metastatic events.
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Affiliation(s)
- T. Zhang
- Botnar Research Centre, Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, OX3 7LD UK
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People’s Republic of China
| | - A. Kastrenopoulou
- Botnar Research Centre, Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, OX3 7LD UK
| | - Q. Larrouture
- Botnar Research Centre, Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, OX3 7LD UK
| | - N. A. Athanasou
- Botnar Research Centre, Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, OX3 7LD UK
| | - H. J. Knowles
- Botnar Research Centre, Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford, Headington, Oxford, OX3 7LD UK
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