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Lin Z, Ji X, Tian N, Gan Y, Ke L. APOB is a potential prognostic biomarker in hepatocellular carcinoma. Discov Oncol 2024; 15:28. [PMID: 38310202 PMCID: PMC10838261 DOI: 10.1007/s12672-024-00877-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 01/30/2024] [Indexed: 02/05/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is significantly associated with adverse prognostic outcomes. The development and progression of different types of human tumors are significantly influenced by APOB. Nevertheless, the significance and pathomechanisms of APOB in HCC have not been conclusively determined. We assessed APOB expression levels in HCC using three publicly available databases of TIMER2.0, UALCAN and Human Protein Atlas. To identify the biological function of APOB, we conducted enrichment analysis via LinkedOmics. Moreover, UALCAN was employed to assess the relationship between APOB expression and clinicopathological features among HCC patients. Additionally, the Kaplan-Meier plotter was utilized to investigate the prognostic relevance of APOB in HCC. To explore potential regulatory ncRNAs that could bind to APOB, we utilized StarBase and GEPIA. Furthermore, the correlation between APOB expression and immune cell infiltration, as well as immune checkpoint genes, was investigated using Spearman's correlation analysis in TISIDB, GEPIA, and TIMER2.0. The findings of our investigation showed a notable decrease in the expression levels of APOB among individuals diagnosed with HCC. Moreover, a noteworthy correlation was observed between the expression of APOB and immune checkpoint genes, alongside the occurrence of immune cell infiltration. The levels of APOB expression in HCC tissues also showed correlations with various clinicopathological features. According to Cox regression analysis, decreased APOB expression emerged as a potential autonomous predictor for OS, RFS, DSS, and PFS among HCC patients. Furthermore, we identified six potential pathways associated with non-coding RNA (ncRNA) as the most promising pathway for APOB in HCC. Our results illuminate the possible involvement of APOB in HCC and offer understanding into its governing mechanisms and medical importance.
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Affiliation(s)
- Zhifeng Lin
- Department of Medical Record; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
| | - Xiaohui Ji
- Department of Obstetrics and Gynaecology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Nana Tian
- Department of Medical Record, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yu Gan
- Department of Medical Record, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Li Ke
- Department of Medical Record; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
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Zhou J, Xu M, Chen Z, Huang L, Wu Z, Huang Z, Liu L. circ_SPEF2 Regulates the Balance of Treg Cells by Regulating miR-16-5p/BACH2 in Lymphoma and Participates in the Immune Response. Tissue Eng Regen Med 2023; 20:1145-1159. [PMID: 37801226 PMCID: PMC10645944 DOI: 10.1007/s13770-023-00585-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/06/2023] [Accepted: 08/11/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND This study aims to explore the potential mechanism of action of the newly discovered hsa_circ_0128899 (circSPEF2) in diffuse large B-cell lymphoma (DLBCL). METHODS circSPEF2, miR-16-5p and BTB and CNC homologue 2 (BACH2) expression patterns in DLBCL patients and cell lines were studied by RT-qPCR. The biological function of circSPEF2 in vitro and in vivo was investigated by function acquisition experiments. The proliferation activity of lymphoma cells was detected by MTT. Bax, Caspase-3, and Bcl-2 were determined by Western Blot. Apoptosis and the ratio of CD4 to Treg of immune cells in the co-culture system were analyzed by flow cytometry. The mechanism of action of circSPEF2 in DLBCL progression was further investigated by RIP and dual luciferase reporter experiments. RESULTS circSPEF2 was a circRNA with abnormally down-regulated expression in DLBCL. Increasing circSPEF2 expression inhibited the proliferative activity and induced apoptosis of lymphoma cells in vitro and in vivo, as well as increased CD4+T cells and decreased Treg cell proportion of immune cells in the tumor microenvironment. Mechanically, circSPEF2 was bound to miR-16-5p expression, while BACH2 was targeted by miR-16-5p. circSPEF2 overexpression-mediated effects on lymphoma progression were reversible by upregulating miR-16-5p or downregulating BACH2. CONCLUSIONS circSPEF2 can influence DLBCL progression by managing cellular proliferation and apoptosis and the proportion of immune cells Treg and CD4 through the miR-16-5p/BACH2 axis.
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Affiliation(s)
- Jie Zhou
- Department of Hematology, Huazhong University of Science and Technology Tongji Medical College Affiliated Union Hospital, No. 1277 Jiefang Avenue, Jianghan District, Wuhan City, 430022, Hubei Province, China
| | - Min Xu
- Department of Hematology, Huazhong University of Science and Technology Tongji Medical College Affiliated Union Hospital, No. 1277 Jiefang Avenue, Jianghan District, Wuhan City, 430022, Hubei Province, China
| | - ZhaoZhao Chen
- Department of Hematology, Huazhong University of Science and Technology Tongji Medical College Affiliated Union Hospital, No. 1277 Jiefang Avenue, Jianghan District, Wuhan City, 430022, Hubei Province, China
| | - LinLin Huang
- Department of Hematology, Huazhong University of Science and Technology Tongji Medical College Affiliated Union Hospital, No. 1277 Jiefang Avenue, Jianghan District, Wuhan City, 430022, Hubei Province, China
| | - ZhuoLin Wu
- Department of Hematology, Huazhong University of Science and Technology Tongji Medical College Affiliated Union Hospital, No. 1277 Jiefang Avenue, Jianghan District, Wuhan City, 430022, Hubei Province, China
| | - ZhongPei Huang
- Department of Hematology, Huazhong University of Science and Technology Tongji Medical College Affiliated Union Hospital, No. 1277 Jiefang Avenue, Jianghan District, Wuhan City, 430022, Hubei Province, China
| | - Lin Liu
- Department of Hematology, Huazhong University of Science and Technology Tongji Medical College Affiliated Union Hospital, No. 1277 Jiefang Avenue, Jianghan District, Wuhan City, 430022, Hubei Province, China.
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3
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Issagholian L, Tabaie E, Reddy AJ, Ghauri MS, Patel R. Expression of E-cadherin and N-cadherin in Epithelial-to-Mesenchymal Transition of Osteosarcoma: A Systematic Review. Cureus 2023; 15:e49521. [PMID: 38156135 PMCID: PMC10752829 DOI: 10.7759/cureus.49521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2023] [Indexed: 12/30/2023] Open
Abstract
Osteosarcoma (OS) is a debilitating cancer of the bone that commonly afflicts the young and old. This may be de novo or associated with tumorigenic syndromes. However, many molecular mechanisms are still being uncovered and may offer greater avenues for screening and therapy. Cadherins, including E-cadherin and N-cadherin/vimentin, are involved in epithelial-to-mesenchymal transmission (EMT), which is key for tumor invasion. A study reviewing the relationship between OS and cadherins might elucidate a potential target for therapy and screening. A robust literature review was conducted by searching PubMed with the keywords "osteosarcoma", "cadherin", "e-cadherin" and "n-cadherin". Of a preliminary 266 papers, 25 were included in the final review. Review articles and those without primary data were excluded. Loss of E-cadherin is noted in metastatic cell lines of osteosarcoma. Overexpression of E-cadherin or knockout of N-cadherin/vimentin results in loss of metastatic potential. There are several methods of gene knockout, including CRISPR-Cas9 gene editing, viral vector insertion with micro RNA complementary to long noncoding RNA within gene segments, or proteomic editing. Screening for EMT and genetic treatment of EMT is a possible avenue for the treatment of refractory osteosarcoma. Several studies were conducted ex vivo. Further testing involving in vitro therapy is necessary to validate these methods. Limitations of this study involve a lack of in vivo trials to validate methods.
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Affiliation(s)
- Leo Issagholian
- Medical School, California University of Science and Medicine, Colton, USA
| | - Ethan Tabaie
- Medical School, California Northstate University College of Medicine, Elk Grove, USA
| | - Akshay J Reddy
- Ophthalmology, California University of Science and Medicine, Colton, USA
| | - Muhammad S Ghauri
- Neurosurgery, California University of Science and Medicine, Colton, USA
| | - Rakesh Patel
- Internal Medicine, East Tennessee State University Quillen College of Medicine, Johnson City, USA
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Zhang Y, Xiong W, Yang C, Li P, Tong H. Circ-FNDC3B Functions as an Oncogenic Factor in Esophageal Squamous Cell Carcinoma via Upregulating MYO5A by Absorbing miR-136-5p and miR-370-3p. Biochem Genet 2023; 61:1917-1936. [PMID: 36884165 DOI: 10.1007/s10528-023-10354-4] [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: 03/16/2022] [Accepted: 02/15/2023] [Indexed: 03/09/2023]
Abstract
Circular RNAs (circRNAs) are a class of key regulators in cancers via regulating gene levels by acting as sponges of miRNAs. This study was devoted to explore the functional mechanism of circRNA fibronectin type III domain-containing protein 3B (circ-FNDC3B) in esophageal squamous cell carcinoma (ESCC). RNA levels were examined via reverse transcription-quantitative polymerase chain reaction assay. Cell viability detection was performed using Cell Counting Kit-8 assay. The proliferation ability was determined through colony formation assay and EDU assay. Flow cytometry was applied for analysis of apoptosis. Invasion ability was assessed via transwell assay. Target binding was analyzed by dual-luciferase reporter assay. The protein expression was measured using western blot. In vivo research was conducted via xenograft model in mice. Circ-FNDC3B exhibited significant upregulation in ESCC tissues and cells. Downregulation of circ-FNDC3B inhibited ESCC cell proliferation and invasion but accelerated cell apoptosis. Circ-FNDC3B interacted with miR-136-5p or miR-370-3p. The function of circ-FNDC3B was achieved by sponging miR-136-5p or miR-370-3p. Myosin VA (MYO5A) acted as a downstream target of miR-136-5p or miR-370-3p. MYO5A reversed miR-136-5p/miR-370-3p-induced tumor inhibition in ESCC cells. Circ-FNDC3B targeted miR-136-5p or miR-370-3p to affect MYO5A expression. Circ-FNDC3B knockdown reduced tumor growth in vivo by inhibiting miR-136-5p or miR-370-3p-mediated MYO5A expression. These findings demonstrated that circ-FNDC3B contributed to malignant progression of ESCC cells via miR-136-5p/MYO5A or miR-370-3p/MYO5A axis.
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Affiliation(s)
- Yuanqiang Zhang
- Department of Cardiothoracic Surgery, Zigong First People's Hospital, No.42nd, ShangYiHao Branch 1st, Zi Liu Jing District, Zigong City, 643000, Sichuan Province, China
| | - Wei Xiong
- Department of Cardiothoracic Surgery, Zigong First People's Hospital, No.42nd, ShangYiHao Branch 1st, Zi Liu Jing District, Zigong City, 643000, Sichuan Province, China
| | - Chunping Yang
- Department of Cardiothoracic Surgery, Zigong First People's Hospital, No.42nd, ShangYiHao Branch 1st, Zi Liu Jing District, Zigong City, 643000, Sichuan Province, China
| | - Ping Li
- Department of Cardiothoracic Surgery, Zigong First People's Hospital, No.42nd, ShangYiHao Branch 1st, Zi Liu Jing District, Zigong City, 643000, Sichuan Province, China
| | - Huajie Tong
- Department of Cardiothoracic Surgery, Zigong First People's Hospital, No.42nd, ShangYiHao Branch 1st, Zi Liu Jing District, Zigong City, 643000, Sichuan Province, China.
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Wang J, Zhang Y, Li Z. Advancements in Understanding the Role of Circular RNA in Osteosarcoma. Mol Biotechnol 2023:10.1007/s12033-023-00838-4. [PMID: 37661210 DOI: 10.1007/s12033-023-00838-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023]
Abstract
Osteosarcoma, the most prevalent primary malignant bone tumor and the third most frequent cancer in children and adolescents worldwide, still poses a significant therapeutic challenge. Even though combined chemotherapy and surgical resection have improved survival rates up to 60%, the prognosis for most patients with metastatic osteosarcoma continues to be dismal. The specific pathogenesis and key regulators of tumor invasion and metastasis remain largely elusive. Circular RNAs (circRNAs), novel endogenous non-coding RNA molecules that form covalently closed continuous loops through splicing, play a crucial role in the development, progression, clinical diagnosis, and treatment of various diseases. Recently, an escalating number of circular structures have been identified in osteosarcoma. Understanding their role in osteosarcoma is advantageous for early detection, diagnosis, and treatment of this disease. The primary function of circRNA involves its unique ability to bind specifically to miRNA, although their biological functions also extend to interacting with proteins, regulating gene transcription, and serving as translation templates. In this review, we explore the mechanisms and clinical applications of circRNAs in the pathogenesis and progression of osteosarcoma, with a particular emphasis on the regulatory mechanisms and functions of circRNAs as miRNA sponges in osteosarcoma development.
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Affiliation(s)
- Jin Wang
- Department of Orthopedics, Wuwei People's Hospital, Xuanwu Street, Liangzhou District, Wuwei, Gansu, 730030, People's Republic of China
| | - Yan Zhang
- Department of Outpatient, Liangzhou District Huangyang Hospital, Wuwei, Gansu, 733000, People's Republic of China
| | - Zicai Li
- Department of Orthopedics, Wuwei People's Hospital, Xuanwu Street, Liangzhou District, Wuwei, Gansu, 730030, People's Republic of China.
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6
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Chen S, Xu Y, Yang B. CircUSP48 promotes malignant behavior by regulating CYR61 via miR-365 in osteosarcoma. Funct Integr Genomics 2023; 23:270. [PMID: 37553503 DOI: 10.1007/s10142-023-01197-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/10/2023]
Abstract
Even though circular RNAs (circRNAs), a class of non-coding endogenous RNA, play a crucial role in the progression of osteosarcoma (OS), the specific function of hsa_circ_0000028 (circUSP48) remains unclear. This study aims to elucidate the mechanism by which circUSP48 regulates OS. We employed qRT-PCR and western blot techniques to quantify circDOCK1, miR-186, and DNMT3A levels. Cell proliferation was assessed using the cell counting kit-8 (CCK-8), 5-Ethynyl-20-deoxyuridine (EdU) assay, and colony formation assay. Cell migration and invasion were evaluated through Transwell and cell scratch assays. Furthermore, we performed dual-luciferase reporter, RIP, and RNA pull-down assays to investigate the association between circUSP48, miR-365, and CYR61. In addition, an in vivo xenograft model was utilized to assess the functional role of circUSP48. High levels of circUSP48 and CYR61 were observed in OS tissues and cells, while miR-365 levels were low. Knockdown of circUSP48 suppressed the multiplication, motility, and invasion of OS cells, thereby reducing carcinoma growth. Moreover, inhibition of miR-365 reversed the OS cell-suppressive effect caused by circUSP48 knockdown through direct interaction with circUSP48. Additionally, circUSP48 upregulated the expression of CYR61 by sponging miR-365. The findings suggest that circUSP48 promotes malignant behavior in OS by regulating the expression of CYR61 through miR-365, making it a potential therapeutic target for OS.
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Affiliation(s)
- Shunguang Chen
- Department of Orthopedics, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, 434000, China.
| | - Yan Xu
- Department of Orthopedics, Gong An Country People's Hospital, Jingzhou, 434050, China
| | - Bo Yang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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7
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Wang D, Wang Y, Wang H, Yang Y, Li L, Liu Y, Yin X. Hsa_circ_0000591 drives osteosarcoma glycolysis and progression by sequestering miR-194-5p and elevating HK2 expression. Clin Exp Pharmacol Physiol 2023; 50:463-475. [PMID: 36809521 DOI: 10.1111/1440-1681.13763] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/23/2023]
Abstract
Osteosarcoma (OS) is the most common bone tumour with a high risk of metastatic progression and recurrence after treatment. Circular RNA hsa_circ_0000591 (circ_0000591) plays a compelling role in OS aggressiveness. However, the function and regulatory mechanism of circ_0000591 need to be further elucidated. As a subject of this study, a differential circRNA circ_0000591 was screened by circRNA microarray expression profiling (GSE96964). Expression changes of circ_0000591 were detected using real-time quantitative polymerase chain reaction (RT-qPCR). Effects of circ_0000591 silencing on OS cell viability, proliferation, colony formation, apoptosis, invasion, and glycolysis were determined via functional experiments. The mechanism by which circ_0000591 functions as a molecular sponge for miRNAs was predicted using bioinformatics analysis and validated using dual-luciferase reporter and RNA pull-down assays. Xenograft assay was done to validate the function of circ_0000591. Circ_0000591 was strongly expressed in OS samples and cells. Silencing of circ_0000591 lessened cell viability, repressed cell proliferation, invasion, glycolysis, and promoted cell apoptosis. Importantly, circ_0000591 regulated HK2 expression by serving as a miR-194-5p molecular sponge. MiR-194-5p silencing impaired circ_0000591 downregulation-mediated suppression of OS cell malignancy and glycolysis. HK2 overexpression weakened the inhibiting impacts of miR-194-5p on OS cell malignancy and glycolysis. Also, circ_0000591 silencing decreased xenograft tumour growth in vivo. Circ_0000591 drove OS glycolysis and growth by upregulating HK2 by sequestering miR-194-5p. The study highlighted the tumour-promoting function of circ_0000591 in OS.
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Affiliation(s)
- Dawei Wang
- Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Yang Wang
- Sanya Central Hospital (Hainan Third People's Hospital), Sanya, China
| | - Huadong Wang
- Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Yafeng Yang
- Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Li Li
- Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Yihao Liu
- Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Xin Yin
- Department of Orthopedics, The Fourth Medical Center of PLA General Hospital, Beijing, China
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Luo Y, Yang B, Yuan X, Zheng J. Silencing circUSP48 suppresses osteosarcoma progression by regulating the miR-335/ smad nuclear interacting protein 1 pathway. J Clin Lab Anal 2023; 37:e24828. [PMID: 36597862 PMCID: PMC9937887 DOI: 10.1002/jcla.24828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/27/2022] [Accepted: 12/23/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) can have a critical function in the multi-processes of osteosarcoma (OS). Nevertheless, whether circUSP48 is involved in OS progression remains unclear. METHODS In the current work, the expression of circUSP48, miR-335 and SNIP1 in OS cell lines and tissues were evaluated using qRT-PCR. Then, Sanger sequencing, RNase R treatment and FISH assay were performed for circUSP48 validation. Furthermore, the function and potential mechanisms of circUSP48 in OS were investigated by performing loss-of-function experiments. RESULTS Silencing circUSP48 could suppress proliferation, invasion as well as migration of OS cells in vitro, also inhibiting the growth of tumor in vivo. Importantly, circUSP48 promoted OS malignancy by sponging miR-335 to upregulate SNIP1. CONCLUSION Overall, these findings suggested that circUSP48 acted as an oncogene in OS, which might become a new target for OS therapy.
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Affiliation(s)
- Yue Luo
- Department of OrthopedicsRenmin Hospital of Wuhan UniversityWuhanChina
| | - Bo Yang
- Department of OrthopedicsRenmin Hospital of Wuhan UniversityWuhanChina
| | - Xiaopin Yuan
- Department of OrthopedicsRenmin Hospital of Wuhan UniversityWuhanChina
| | - Jian Zheng
- Department of OrthopedicsRenmin Hospital of Wuhan UniversityWuhanChina
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Jin Z, Ye J, Chen S, Ren Y, Guo W. CircDOCK1 Regulates miR-186/DNMT3A to Promote Osteosarcoma Progression. Biomedicines 2022; 10:biomedicines10123013. [PMID: 36551768 PMCID: PMC9775081 DOI: 10.3390/biomedicines10123013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/13/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Circular RNAs (circRNAs), as a class of endogenous RNAs, are implicated in osteosarcoma (OS) progression. However, the functional properties of circDOCK1 in OS have been largely unexplored. The present study demonstrated the regulatory mechanism of circDOCK1 in OS. METHODS QRT-PCR and Western blots were used to determine the abundances of circDOCK1, miR-186, and DNMT3A. Cell counting kit-8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU), colony formation, Transwell, and wound healing assays were used to examine cellular multiplication, motility, and invasion. Luciferase reporter analysis, RNA immunoprecipitation (RIP), and pull-down assays were used to verify target relationships. Xenograft models were used to analyze in vivo function. RESULTS OS tissues and cells showed high levels of circDOCK1. By knocking down circDOCK1, cellular multiplication, motility, and invasion were suppressed. Furthermore, silencing circDOCK1 suppressed the growth of tumor xenografts. According to mechanistic studies, miR-186 targets DNA methyltransferases 3A (DNMT3A) directly and acts as a circDOCK1 target. Furthermore, circDOCK1 upregulated DNMT3A expression through sponging miR-186 to regulate the progression of OS. CONCLUSIONS CircDOCK1 promotes OS progression by interacting with miR-186/DNMT3ADNMT3A, representing a novel therapeutic approach.
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Affiliation(s)
| | | | | | | | - Weichun Guo
- Correspondence: ; Tel.: +86-027-88041911-82209
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10
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Xia Y, Wang D, Piao Y, Chen M, Wang D, Jiang Z, Liu B. Modulation of immunosuppressive cells and noncoding RNAs as immunotherapy in osteosarcoma. Front Immunol 2022; 13:1025532. [PMID: 36457998 PMCID: PMC9705758 DOI: 10.3389/fimmu.2022.1025532] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/03/2022] [Indexed: 07/21/2023] Open
Abstract
The most common bone cancer is osteosarcoma (OS), which mostly affects children and teenagers. Early surgical resection combined with chemotherapy significantly improves the prognosis of patients with OS. Existing chemotherapies have poor efficacy in individuals with distant metastases or inoperable resection, and these patients may respond better to novel immunotherapies. Immune escape, which is mediated by immunosuppressive cells in the tumour microenvironment (TME), is a major cause of poor OS prognosis and a primary target of immunotherapy. Myeloid-derived suppressor cells, regulatory T cells, and tumour-associated macrophages are the main immunosuppressor cells, which can regulate tumorigenesis and growth on a variety of levels through the interaction in the TME. The proliferation, migration, invasion, and epithelial-mesenchymal transition of OS cells can all be impacted by the expression of non-coding RNAs (ncRNAs), which can also influence how immunosuppressive cells work and support immune suppression in TME. Interferon, checkpoint inhibitors, cancer vaccines, and engineered chimeric antigen receptor (CAR-T) T cells for OS have all been developed using information from studies on the metabolic properties of immunosuppressive cells in TME and ncRNAs in OS cells. This review summarizes the regulatory effect of ncRNAs on OS cells as well as the metabolic heterogeneity of immunosuppressive cells in the context of OS immunotherapies.
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Affiliation(s)
- Yidan Xia
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Dongxu Wang
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Yuting Piao
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Minqi Chen
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Duo Wang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Ziping Jiang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Bin Liu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
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Shi Y, Tian Y, Sun X, Qiu Y, Zhao Y. Silencing circOMA1 Inhibits Osteosarcoma Progression by Sponging miR-1294 to Regulate c-Myc Expression. Front Oncol 2022; 12:889583. [PMID: 35493998 PMCID: PMC9043560 DOI: 10.3389/fonc.2022.889583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 03/21/2022] [Indexed: 12/02/2022] Open
Abstract
Background Several studies have reported that circRNAs have a crucial function in the tumorigenesis of various cancers. However, the expression and function of circOMA1 in osteosarcoma is unknown. Methods circOMA1 was identified through bioinformatics analysis. qRT-PCR was used to assess the expressions of circOMA1, miR-1294, and c-Myc in osteosarcoma tissues. Further, we performed functional experiments to explore the biological function of circOMA1 in osteosarcoma. Moreover, a luciferase reporter assay, RNA immunoprecipitation (RIP), and fluorescence in situ hybridisation (FISH) assay were performed to demonstrate the association between circOMA1 and miR-1294. Results circOMA1 exhibited considerable upregulation in osteosarcoma tissues compared with adjacent normal tissues. Silencing circOMA1 suppressed osteosarcoma progression in vitro and in vivo. Mechanically, circOMA1 functioned as a sponge of miR-1294 to upregulate c-Myc expression. Conclusion circOMA1 played the role of an oncogene in osteosarcoma and promoted osteosarcoma progression by mediating the miR-1294/c-Myc pathway, which might be a new target for treating osteosarcoma.
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Affiliation(s)
- Yubo Shi
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yunyun Tian
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiangran Sun
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yonglong Qiu
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yingchun Zhao
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
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Wahafu P, Xu A, Zhao B, Tuo Y, Yang J. Circ_0005526 contributes to interleukin-1β-induced chondrocyte injury in osteoarthritis via upregulating transcription factor 4 by interacting with miR-142-5p. Bioengineered 2022; 13:8407-8418. [PMID: 35322736 PMCID: PMC9162016 DOI: 10.1080/21655979.2022.2048773] [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] [Indexed: 12/31/2022] Open
Abstract
Circular RNAs (circRNAs) can regulate the progression of osteoarthritis (OA) via serving as competing endogenous RNAs (ceRNAs). This work was performed for functional research of circ_0005526 in Interleukin-1β (IL-1β)-induced OA injury. Circ_0005526, microRNA-142-5p (miR-142-5p) or transcription factor 4 (TCF4) expression was measured via reverse transcription-quantitative polymerase chain reaction assay. Cell analysis was performed by Cell Counting Kit-8 assay for cell viability, EdU assay for cell proliferation and flow cytometry for cell apoptosis. The protein level detection was conducted using western blot. Target analysis was carried out via dual-luciferase reporter assay and RNA pull-down assay. Circ_0005526 was upregulated in OA cartilage tissues and IL-1β-exposed chondrocyte cells. IL-1β inhibited cell viability and proliferation but enhanced cell apoptosis and inflammation, then these damages were attenuated after downregulation of circ_0005526. Circ_0005526 interacted with miR-142-5p, and circ_0005526 knockdown suppressed IL-1β-induced OA progression through upregulating miR-142-5p. TCF4 was regulated by circ_0005526 via targeting miR-142-5p. The function of circ_0005526 was also achieved by upregulation of TCF4. These results unraveled that circ_0005526 promoted IL-1β-induced chondrocyte injury in OA via suppressing miR-142-5p binding to TCF4.
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Affiliation(s)
- Paerhati Wahafu
- Department of Orthopedics, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Aixian Xu
- Department of Orthopedics District 1, The People's Hospital of Zhaoyuan City, Zhaoyuan, Shandong, China
| | - Bo Zhao
- Department of Orthopedics, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yanan Tuo
- Department of Orthopedics, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Junkui Yang
- Department of Orthopedics District 2, The People's Hospital of Zhaoyuan City, Zhaoyuan, Shandong, China
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