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Wang K, Wang N, Liu J, Zhou J, Lei S, Yue H, Feng H, Feng K, Kang X. Silencing circular RNA hsa_circABCC1 inhibits osteosarcoma progression through down-regulating HDAC4 via sponging miR-591. ENVIRONMENTAL TOXICOLOGY 2023. [PMID: 37052456 DOI: 10.1002/tox.23786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/18/2023] [Accepted: 03/12/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Circular RNA (circRNA) has been shown to play an important regulatory role in the development of various cancers, including osteosarcoma (OS). However, the role of circRNA ABCC1 (circABCC1) in OS was still poorly understood. The aim of our study was to investigate the role of circABCC1 in OS progression and its potential molecular mechanisms. METHODS The expression of circABCC1, microRNA-591 (miR-591) and histone deacetylase 4 (HDAC4) in OS tissues or cells was detected by quantitative real-time polymerase chain reaction (qRT-PCR) and western blot (WB) analyses. In vitro experiments, the viability, proliferation, apoptosis, migration, invasion and autophagy of U2OS and HOS cells were assessed in vitro using cell counting kit-8 (CCK-8) assay, 5-ethynyl-29-deoxyuridine (EdU) assay, flow cytometry (FCM) assay, transwell migration and invasion assays (transwell) and WB assay, respectively. Interactions between circABCC1 and miR-591, miR-591 and HDAC4 were confirmed using a dual luciferase reporter gene assay system. The oncogenic role of circABCC1 in OS in vivo was examined by establishing a tumor xenograft model. RESULTS CircABCC1 was significantly elevated in OS tissues (about 3.1-folds) and cells (U2OS (about 2.1-folds) and HOS (about 2.8-folds)) compared with the control (p < .05). Silencing of circABCC1 significantly reduced the viability and proliferation, promoted apoptosis, impaired migration and invasion, and increased autophagy of U2OS and HOS cells (p < .05). In addition, miR-591 was confirmed to be a target of circABCC1, exerting an opposite effect to circABCC1 (p < .05). MiR-591 attenuation in U2OS and HOS cells was able to reply to the inhibition of cell proliferation, migration and invasion as well as promotion of cell apoptosis and autophagy mediated by silencing circABCC1 (p < .05). HDAC4 was verified to be the target gene of miR-591 in U2OS and HOS cells and was regulated by the circABCC1/miR-591 axis (p < .05), and restoration of HDAC4 levels in U2OS and HOS cells was able to restore the altered cellular function caused by silencing circABCC1 (p < .05). In addition, knockdown of circABCC1 attenuated tumor growth in vivo (p < .05). CONCLUSION Silencing of circABCC1 inhibits osteosarcoma progression by attenuating HDAC4 expression through sponging miR-591.
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Affiliation(s)
- Kai Wang
- Department of Orthopedics, Second Hospital of Lanzhou University, Lanzhou, China
| | - Na Wang
- Department of Oncology, Second Hospital of Lanzhou University, Lanzhou, China
| | - Jingsheng Liu
- Department of Orthopedics, Second Hospital of Lanzhou University, Lanzhou, China
| | - Jianwei Zhou
- Department of Orthopedics, Second Hospital of Lanzhou University, Lanzhou, China
| | - Shuanhu Lei
- Department of Orthopedics, Second Hospital of Lanzhou University, Lanzhou, China
| | - Haiyuan Yue
- Department of Orthopedics, Second Hospital of Lanzhou University, Lanzhou, China
| | - Haijun Feng
- Department of Orthopedics, Second Hospital of Lanzhou University, Lanzhou, China
| | - Kai Feng
- Department of Orthopedics, Second Hospital of Lanzhou University, Lanzhou, China
| | - Xuewen Kang
- Department of Orthopedics, Second Hospital of Lanzhou University, Lanzhou, China
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Bhavnagari H, Raval A, Shah F. Deciphering Potential Role of Hippo Signaling Pathway in Breast Cancer: A Comprehensive Review. Curr Pharm Des 2023; 29:3505-3518. [PMID: 38141194 DOI: 10.2174/0113816128274418231215054210] [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: 07/28/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 12/25/2023]
Abstract
Breast cancer is a heterogeneous disease and a leading malignancy around the world. It is a vital cause of untimely mortality among women. Drug resistance is the major challenge for effective cancer therapeutics. In contrast, cancer stem cells (CSCs) are one of the reasons for drug resistance, tumor progression, and metastasis. The small population of CSCs present in each tumor has the ability of self-renewal, differentiation, and tumorigenicity. CSCs are often identified and enriched using a variety of cell surface markers (CD44, CD24, CD133, ABCG2, CD49f, LGR5, SSEA-3, CD70) that exert their functions by different regulatory networks, i.e., Notch, Wnt/β-catenin, hedgehog (Hh), and Hippo signaling pathways. Particularly the Hippo signaling pathway is the emerging and very less explored cancer stem cell pathway. Here, in this review, the Hippo signaling molecules are elaborated with respect to their ability of stemness as epigenetic modulators and how these molecules can be targeted for better cancer treatment and to overcome drug resistance.
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Affiliation(s)
- Hunayna Bhavnagari
- Molecular Diagnostic and Research Lab-3, Department of Cancer Biology, The Gujarat Cancer and Research Institute, Ahmedabad, Gujarat, India
| | - Apexa Raval
- Molecular Diagnostic and Research Lab-3, Department of Cancer Biology, The Gujarat Cancer and Research Institute, Ahmedabad, Gujarat, India
| | - Franky Shah
- Molecular Diagnostic and Research Lab-3, Department of Cancer Biology, The Gujarat Cancer and Research Institute, Ahmedabad, Gujarat, India
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Hsa_circ_0000851 promotes PDK1/p-AKT-mediated cell proliferation and migration by regulating miR-1183 in triple-negative breast cancer. Cell Signal 2023; 101:110494. [PMID: 36241055 DOI: 10.1016/j.cellsig.2022.110494] [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: 05/02/2022] [Revised: 09/30/2022] [Accepted: 10/05/2022] [Indexed: 11/07/2022]
Abstract
Breast cancer (BC) is the most common cause of cancer-related mortality in women worldwide. Circular RNAs (circRNAs), a type of non-coding RNA, have garnered interest because of their unique looped structure. In recent years, circRNAs have been shown to be involved in various diseases, including carcinogenesis, and to serve as biomarkers for early risk assessment and survival prediction of different tumour types. This study aimed to identify a novel circRNA, hsa_circ_0000851, generated from the sixth intron of the oncogene TCF4, reported to be involved in BC pathogenesis. Our study showed that hsa_circ_0000851 was mainly located in the cytoplasm of BC cells and upregulated in BC cell lines and tissue samples. Higher hsa_circ_0000851 expression levels resulted in increased proliferation of BC cells both in vitro and in vivo, while treatment of BC cells with hsa_circ_0000851 siRNA decreased their proliferation. We found that hsa_circ_0000851 bound directly to miR-1183, accelerating the expression of its target gene PDK1, which facilities BC cell proliferation and migration through PDK1/p-AKT.
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Zhang Y, Wang Y, Ji H, Ding J, Wang K. The interplay between noncoding RNA and YAP/TAZ signaling in cancers: molecular functions and mechanisms. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:202. [PMID: 35701841 PMCID: PMC9199231 DOI: 10.1186/s13046-022-02403-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 05/25/2022] [Indexed: 12/13/2022]
Abstract
The Hippo signaling pathway was found coordinately modulates cell regeneration and organ size. Its dysregulation contributes to uncontrolled cell proliferation and malignant transformation. YAP/TAZ are two critical effectors of the Hippo pathway and have been demonstrated essential for the initiation or growth of most tumors. Noncoding RNAs (ncRNAs), including miRNAs, lncRNAs, and circRNAs, have been shown to play critical roles in the development of many cancers. In the past few decades, a growing number of studies have revealed that ncRNAs can directly or indirectly regulate YAP/TAZ signaling. YAP/TAZ also regulate ncRNAs expression in return. This review summarizes the interactions between YAP/TAZ signaling and noncoding RNAs together with their biological functions on cancer progression. We also try to describe the complex feedback loop existing between these components.
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Affiliation(s)
- Yirao Zhang
- Department of Oncology, Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, China
| | - Yang Wang
- Department of Oncology, Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, China
| | - Hao Ji
- Department of Liver Surgery and Liver Transplantation Center, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Jie Ding
- Department of Oncology, Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, China.
| | - Keming Wang
- Department of Oncology, Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, China.
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Wang L, Tan Y, Chen J, Zhu Z, Zhu Y, Sun Q, Dong H, Ai C, He G, Liu Y. CircABCC1 promotes the development of glioma by sponging miR‐591 and modulating high‐mobility group A2. Ann N Y Acad Sci 2022; 1511:107-118. [PMID: 35000195 DOI: 10.1111/nyas.14717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/29/2021] [Accepted: 10/12/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Lei Wang
- Department of Human Anatomy, Histology and Embryology, and Institute of Neurobiology Health Science Center, Xian Jiaotong University Xi'an Shanxi China
- Department of Neurology Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Ying Tan
- Department of Laboratory Medicine Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Jun Chen
- Department of Neurology Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Ziyu Zhu
- Department of Neurology Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Yuting Zhu
- Department of Neurology Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Qiang Sun
- Department of Neurology Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Hao Dong
- Department of Neurology Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Chunqi Ai
- Department of Mental Health Centre Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Guohou He
- Department of Neurology Affiliated Taihe Hospital of Hubei University of Medicine Shiyan Hubei China
| | - Yong Liu
- Department of Human Anatomy, Histology and Embryology, and Institute of Neurobiology Health Science Center, Xian Jiaotong University Xi'an Shanxi China
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Shen W, Zhang J, Pan Y, Jin Y. LncRNA MIR4435-2HG functions as a ceRNA against miR-125a-5p and promotes neuroglioma development by upregulating TAZ. J Clin Lab Anal 2021; 35:e24066. [PMID: 34714963 PMCID: PMC8649364 DOI: 10.1002/jcla.24066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 09/23/2021] [Accepted: 09/25/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Expression of the TAZ gene is closely related to the prognosis of glioma patients. We hoped to find long noncoding RNAs (lncRNAs) related to TAZ and a new target for glioma treatment. METHODS TAZ-related genes were found by dual-luciferase reporter gene assay, and the correlation of each gene was analyzed by the Pearson method. Human glioma cell lines U87 MG and U251 and glioma rats were used for cytology assays, and the related genes were transfected. We conducted immunohistochemistry, RT-qPCR, Western blotting, CCK8 test, flow cytometry, transwell assays, clone formation analysis, and tumor weight measurements to verify the above relationship. RESULTS We found that miR-125a-5p was closely related to the TAZ gene, and the lncRNA MIR4435-2HG was closely related to miR-125a-5p. Both MIR4435-2HG-OE and TAZ increased the expression of the TAZ gene, activated the Wnt signaling pathway, inhibited apoptosis, and promoted migration and proliferation in glioma cells. Besides, it also increased the tumor volume of gliomas in a rat model subcutaneously inoculated with glioma cells. We also found miR-125a-5p could block the effect of MIR4435-2HG-OE and TAZ. CONCLUSIONS LncRNA MIR4435-2HG obstructs the functions of miR-125a-5p and promotes neuroglioma development by upregulating the TAZ gene.
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Affiliation(s)
- Wangzhen Shen
- Department of NeurosurgeryTongxiang First People's HospitalTongxiangChina
| | - Jiawei Zhang
- Department of NeurosurgeryTongxiang First People's HospitalTongxiangChina
| | - Yunfeng Pan
- Department of NeurosurgeryTongxiang First People's HospitalTongxiangChina
| | - Yun Jin
- Department of NeurosurgeryTongxiang First People's HospitalTongxiangChina
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Otmani K, Lewalle P. Tumor Suppressor miRNA in Cancer Cells and the Tumor Microenvironment: Mechanism of Deregulation and Clinical Implications. Front Oncol 2021; 11:708765. [PMID: 34722255 PMCID: PMC8554338 DOI: 10.3389/fonc.2021.708765] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 09/27/2021] [Indexed: 01/07/2023] Open
Abstract
MicroRNAs (miRNAs) are noncoding RNAs that have been identified as important posttranscriptional regulators of gene expression. miRNAs production is controlled at multiple levels, including transcriptional and posttranscriptional regulation. Extensive profiling studies have shown that the regulation of mature miRNAs expression plays a causal role in cancer development and progression. miRNAs have been identified to act as tumor suppressors (TS) or as oncogenes based on their modulating effect on the expression of their target genes. Upregulation of oncogenic miRNAs blocks TS genes and leads to tumor formation. In contrast, downregulation of miRNAs with TS function increases the translation of oncogenes. Several miRNAs exhibiting TS properties have been studied. In this review we focus on recent studies on the role of TS miRNAs in cancer cells and the tumor microenvironment (TME). Furthermore, we discuss how TS miRNA impacts the aggressiveness of cancer cells, with focus of the mechanism that regulate its expression. The study of the mechanisms of miRNA regulation in cancer cells and the TME may paved the way to understand its critical role in the development and progression of cancer and is likely to have important clinical implications in a near future. Finally, the potential roles of miRNAs as specific biomarkers for the diagnosis and the prognosis of cancer and the replacement of tumor suppressive miRNAs using miRNA mimics could be promising approaches for cancer therapy.
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Affiliation(s)
- Khalid Otmani
- Experimental Hematology Laboratory, Jules Bordet Institute, Université libre de Bruxelles, Brussels, Belgium
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Ji C, Hong X, Lan B, Lin Y, He Y, Chen J, Liu X, Ye W, Mo Z, She Z, Lin S. Circ_0091581 Promotes the Progression of Hepatocellular Carcinoma Through Targeting miR-591/FOSL2 Axis. Dig Dis Sci 2021; 66:3074-3085. [PMID: 33040214 DOI: 10.1007/s10620-020-06641-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 09/24/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) have shown crucial regulatory roles in cancer biology. We aimed to uncover the role and underlying mechanism of circ_0091581 in hepatocellular carcinoma (HCC) progression. METHODS The abundance of circ_0091581, microRNA-591 (miR-591) and FOS like 2, AP-1 transcription factor subunit (FOSL2) was measured by quantitative real-time polymerase chain reaction. Cell viability, colony formation ability, and invasion ability were assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, colony formation assay, and transwell invasion assay. The migration ability was analyzed by transwell migration assay and wound healing assay. Flow cytometry was used to evaluate the cell cycle and apoptosis of HCC cells. The interaction between miR-591 and circ_0091581 or FOSL2 was predicted by Circular RNA Interactome database or TargetScan database and confirmed by dual-luciferase reporter assay and RNA immune co-precipitation assay. FOSL2 protein expression was measured by Western blot assay. Xenograft tumor assay was conducted to analyze the role of circ_0091581 in HCC tumor growth in vivo. RESULTS Circ_0091581 was highly expressed in HCC tissue samples and cell lines in contrast to that in adjacent normal tissue samples and THLE-2 cell line. Circ_0091581 accelerated the viability, colony formation, metastasis, and cell cycle, while it impeded the apoptosis of HCC cells. MiR-591 bound to circ_0091581, and circ_0091581 knockdown-mediated effects in HCC cells were largely overturned by miR-591 silencing. FOSL2 was a target of miR-591, and FOSL2 overexpression largely reversed miR-591 accumulation-induced influences in HCC cells. FOSL2 protein expression was down-regulated by circ_0091581 silencing, and the addition of miR-591 inhibitor partly recovered the expression of FOSL2 in HCC cells. Circ_0091581 interference notably suppressed HCC tumor growth in vivo. CONCLUSION Circ_0091581 acted as an oncogene to enhance the viability, colony formation, metastasis and cell cycle and inhibit the apoptosis of HCC cells through targeting miR-591/FOSL2 axis.
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Affiliation(s)
- Chenggang Ji
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China
| | - Xiaocheng Hong
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China
| | - Bo Lan
- Department of Anorectal Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, Dongguan City, Guangdong Province, China
| | - Ye Lin
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangzhou City, Guangdong Province, China
| | - Yingxin He
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China
| | - Jiayang Chen
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China
| | - Xi Liu
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China
| | - Weijie Ye
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China
| | - Zhikang Mo
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China
| | - Zhanpeng She
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China
| | - Shuwen Lin
- Department of General Surgery, Binhaiwan Central Hospital of Dongguan, (also called The Fifth People's Hospital of Dongguan), The Dongguan Affiliated Hospital of Medical College of Jinan University, No.111 Humen Road, Humen Town, Dongguan City, 523905, Guangdong Province, China.
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Li L, Wang N, Zhu M, Xiong Y, Wang F, Guo G, Wang X, Gu Y. Aberrant super-enhancer-driven oncogene ENC1 promotes the radio-resistance of breast carcinoma. Cell Death Dis 2021; 12:777. [PMID: 34362881 PMCID: PMC8346480 DOI: 10.1038/s41419-021-04060-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 11/29/2022]
Abstract
Poor response of tumors to radiotherapy is a major clinical obstacle. Because of the dynamic characteristics of the epigenome, identification of possible epigenetic modifiers may be beneficial to confer radio-sensitivity. This research was set to examine the modulation of ectodermal-neural cortex 1 (ENC1) in radio-resistance in breast carcinoma (BC). In silico identification and immunohistochemical staining revealed that overexpression of ENC1 promoted BC metastasis to the bone and brain. Moreover, its overexpression promoted the translocation of YAP1/TAZ into the nucleus and enhanced expression of GLI1, CTGF, and FGF1 through the Hippo pathway. ENC1 expression was controlled by a ~10-kb long SE. ENC1-SEdistal deletion reduced ENC1 expression and inhibited the malignant behavior of BC cells and their resistance to radiotherapy. The binding sites on the ENC1-SE region enriched the shared sequence between TCF4 and ENC1 promoter. Knocking-down TCF4 inhibited luciferase activity and H3K27ac-enriched binding of the ENC1-SE region. Additionally, SE-driven ENC1 overexpression mediated by TCF4 may have clinical implications in radio-resistance in BC patients. Our findings indicated that ENC1 overexpression is mediated by SE and the downstream TCF4 to potentiate the Hippo/YAP1/TAZ pathway. Targeting this axis might be a therapeutic strategy for overcoming BC radio-resistance.
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Affiliation(s)
- Lin Li
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Nan Wang
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Mingzhi Zhu
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Youyi Xiong
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Fang Wang
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Guangcheng Guo
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Xinxing Wang
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China
| | - Yuanyan Gu
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, People's Republic of China.
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Chen J, Wan R, Li Q, Rao Z, Wang Y, Zhang L, Teichmann AT. Utilizing the Hippo pathway as a therapeutic target for combating endocrine-resistant breast cancer. Cancer Cell Int 2021; 21:306. [PMID: 34112175 PMCID: PMC8194146 DOI: 10.1186/s12935-021-01999-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/27/2021] [Indexed: 12/14/2022] Open
Abstract
Drug resistance is always a great obstacle in any endocrine therapy of breast cancer. Although the combination of endocrine therapy and targeted therapy has been shown to significantly improve prognosis, refractory endocrine resistance is still common. Dysregulation of the Hippo pathway is often related to the occurrence and the development of many tumors. Targeted therapies of this pathway have played important roles in the study of triple negative breast cancer (TNBC). Targeting the Hippo pathway in combination with chemotherapy or other targeted therapies has been shown to significantly improve specific antitumor effects and reduce cancer antidrug resistance. Further exploration has shown that the Hippo pathway is closely related to endocrine resistance, and it plays a "co-correlation point" role in numerous pathways involving endocrine resistance, including related pathways in breast cancer stem cells (BCSCs). Agents and miRNAs targeting the components of the Hippo pathway are expected to significantly enhance the sensitivity of breast cancer cells to endocrine therapy. This review initially explains the possible mechanism of the Hippo pathway in combating endocrine resistance, and it concludes by recommending endocrine therapy in combination with therapies targeting the Hippo pathway in the study of endocrine-resistant breast cancers.
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Affiliation(s)
- Jing Chen
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Jiangyang District, Luzhou, 646000, People's Republic of China.,Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Runlan Wan
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Jiangyang District, Luzhou, 646000, People's Republic of China
| | - Qinqin Li
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Jiangyang District, Luzhou, 646000, People's Republic of China.,Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Zhenghuan Rao
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Jiangyang District, Luzhou, 646000, People's Republic of China.,Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Yanlin Wang
- North Sichuan Medical College, Nanchong, 637000, China
| | - Lei Zhang
- Department of Gynaecology, The Second People's Hospital of Yibin, Yibin, 644000, China
| | - Alexander Tobias Teichmann
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Jiangyang District, Luzhou, 646000, People's Republic of China. .,Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.
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Role of MicroRNAs in Human Osteosarcoma: Future Perspectives. Biomedicines 2021; 9:biomedicines9050463. [PMID: 33922820 PMCID: PMC8146779 DOI: 10.3390/biomedicines9050463] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/21/2021] [Accepted: 04/21/2021] [Indexed: 12/15/2022] Open
Abstract
Osteosarcoma (OS) is a rare form of cancer with high death rate but is one of the most frequent forms of bone cancer in children and adolescents. MiRNAs are small endogenous RNAs that regulate gene expression post-transcriptionally. The discovery of miRNAs could allow us to obtain an earlier diagnosis, predict prognosis and chemoresistance, and lead to the discovery of new treatments in different types of tumors, including OS. Despite the fact that there is currently only one clinical trial being carried out on a single miRNA for solid tumors, it is very probable that the number of clinical trials including miRNAs as prognostic and diagnostic biomarkers, as well as potential therapeutic targets, will increase in the near future. This review summarizes the different miRNAs related to OS and their possible therapeutic application.
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Yu J, Qin Y, Zhou N. Knockdown of Circ_SLC39A8 protects against the progression of osteoarthritis by regulating miR-591/IRAK3 axis. J Orthop Surg Res 2021; 16:170. [PMID: 33658057 PMCID: PMC7927261 DOI: 10.1186/s13018-021-02323-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The dysregulation of circular RNAs (circRNAs) has been identified in various human diseases, including osteoarthritis (OA). The purpose of this study was to identify the role and mechanism of circ_SLC39A8 in regulating the progression of OA. METHODS The expression levels of circ_SLC39A8, miR-591, and its potential target gene, interleukin-1-receptor-associated kinase 3 (IRAK3), were identified by quantitative real-time polymerase chain reaction (qRT-PCR). Cell viability and apoptosis were determined by Cell Counting Kit-8 (CCK-8) assay and flow cytometry, respectively. The relationship between miR-591 and circ_SLC39A8 or IRAK3 was predicted by bioinformatics tools and verified by dual-luciferase reporter. RESULTS Circ_SLC39A8 and IRAK3 were upregulated and miR-591 was downregulated in OA cartilage tissues. Knockdown of circ_SLC39A8 inhibited apoptosis and inflammation in OA chondrocytes, while these effects were reversed by downregulating miR-591. Promotion cell viability effects of miR-591 were partially reversed by IRAK3 overexpression. CONCLUSION Our findings indicated that knockdown of circ_SLC39A8 delayed the progression of OA via modulating the miR-591-IRAK3 axis, providing new insight into the molecular mechanisms of OA pathogenesis.
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Affiliation(s)
- Jizhe Yu
- Department of Orthopaedics, Yichang Central People's Hospital, 183 Yiling Avenue, Wujiagang District, Yichang City, 443003, Hubei Province, P. R. China
| | - Yushuang Qin
- Department of Nuclear Medicine, Yichang Central People's Hospital, 183 Yiling Avenue, Wujiagang District, Yichang City, 443003, Hubei Province, P. R. China
| | - Naxin Zhou
- Department of Orthopaedics, Yichang Central People's Hospital, 183 Yiling Avenue, Wujiagang District, Yichang City, 443003, Hubei Province, P. R. China.
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Das PK, Siddika MA, Asha SY, Aktar S, Rakib MA, Khanam JA, Pillai S, Islam F. MicroRNAs, a Promising Target for Breast Cancer Stem Cells. Mol Diagn Ther 2021; 24:69-83. [PMID: 31758333 DOI: 10.1007/s40291-019-00439-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Reactivation of the stem cell programme in breast cancer is significantly associated with persistent cancer progression and therapeutic failure. Breast cancer stem cells (BCSCs) are involved in the process of breast cancer initiation, metastasis and cancer relapse. Among the various important cues found in the formation and progression of BCSCs, microRNAs (miRNAs or miRs) play a pivotal role by regulating the expression of various tumour suppressor genes or oncogenes. Accordingly, there is evidence that miRNAs are associated with BCSC self-renewal, differentiation, invasion, metastasis and therapy resistance, and therefore cancer recurrence. miRNAs execute their roles by regulating the expression of stemness markers, activation of signalling pathways or their components and regulation of transcription networks in BCSCs. Therefore, a better understanding of the association between BCSCs and miRNAs has the potential to help design more effective and safer therapeutic solutions against breast cancer. Thus, an miRNA-based therapeutic strategy may open up new horizons for the treatment of breast cancer in the future. In view of this, we present the progress to date of miRNA research associated with stemness marker expression, signalling pathways and activation of transcription networks to regulate the self-renewal, differentiation and therapy resistance properties of BCSCs.
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Affiliation(s)
- Plabon Kumar Das
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Mst Ayesha Siddika
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Saharia Yeasmin Asha
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Suraiya Aktar
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Abdur Rakib
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Jahan Ara Khanam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Suja Pillai
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, 4029, Australia
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh. .,Institute for Glycomics, Griffith University, Gold Coast, QLD, 4222, Australia.
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Zhang J, He H, Wang K, Xie Y, Yang Z, Qie M, Liao Z, Zheng Z. miR-326 inhibits the cell proliferation and cancer stem cell-like property of cervical cancer in vitro and oncogenesis in vivo via targeting TCF4. ANNALS OF TRANSLATIONAL MEDICINE 2021; 8:1638. [PMID: 33490150 PMCID: PMC7812208 DOI: 10.21037/atm-20-6830] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Cervical cancer ranks as one of the most prevalent female malignancies globally, and its treatment with new targets has been the focus of current research. The present study set out to investigate the function of microRNA-326 (miR-326) in vitro and in vivo and to verify the direct targeting of transcription factor 4 (TCF4) by miR-326. Methods The detection of messenger RNA (mRNA) expressing miR-326 and TCF4 in cervical cancer cell lines and tumor samples was conducted using quantitative real-time polymerase chain (qRT-PCR). A dual-luciferase reporter assay was carried out to detect the target relationship of miR-326 with TCF4. A Cell Counting Kit-8 (CCK-8) assay was employed to detect the effect of miR-326 on CasKi cell viability. Flow cytometry and western blotting were employed to examine the effects of miR-326 on cancer stem cell (CSC)-like property. Tumor weight was measured in orthotopic xenograft mouse models. Immunohistochemistry was employed to analyze the protein expression levels of Ki-67, proliferating cell nuclear antigen (PCNA), CD44, and SRY-box 4 (SOX4). Result Downregulation of the mRNA expression levels of miR-326 was observed in cervical cancer cell lines and tumor tissue, while the levels of TCF4 were upregulated. The dual-luciferase reporter assay revealed binding of miR-326 to the three prime untranslated region (3'-UTR) of TCF4. In vitro assays demonstrated that miR-326 inhibited CasKi cell proliferation through regulating TCF4. miR-326 also suppressed the CSC-like property of CasKi cells by targeting TCF4. Furthermore, the protein expression levels of cyclin D1, β-catenin, and c-Myc were decreased when miR-326 was added to TCF4-transfected cells. In vivo assays demonstrated that miR-326 inhibited tumor weight, growth, and the protein expression levels of Ki-67, PCNA, CD44, SOX4, and β-catenin. Conclusions miR-326 acted in a tumor-suppressive manner through its regulation of TCF4, and has potential as a biomarker or therapeutic target for cervical cancer.
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Affiliation(s)
- Jian Zhang
- Department of Obstetrics and Gynecology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Haining He
- Department of Obstetrics and Gynecology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Kana Wang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yao Xie
- Department of Obstetrics and Gynecology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Zhongmei Yang
- Department of Obstetrics and Gynecology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Mingrong Qie
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Zhi Liao
- Department of Obstetrics and Gynecology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Zhenrong Zheng
- Department of Obstetrics and Gynecology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
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15
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Xing Z, Wang X, Liu J, Zhang M, Feng K, Wang X. Hsa_circ_0069094 accelerates cell malignancy and glycolysis through regulating the miR-591/HK2 axis in breast cancer. Cell Signal 2020; 79:109878. [PMID: 33309838 DOI: 10.1016/j.cellsig.2020.109878] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 01/08/2023]
Abstract
Circular RNAs (circRNAs) are implicated in the initiation and advancement of diverse tumors. CircRNA hsa_circ_0069094 (circ_0069094) has been reported to be upregulated in BC, but the biological role of circ_0069094 in BC is indistinct. Hence, we aimed to survey the biological role of circ_0069094 in BC. In the present study, we verified that circ_0069094 was upregulated in BC tissues and cells. BC patients with high circ_0069094 expression had a poor prognosis. Functional analysis revealed that circ_0069094 silencing induced apoptosis, curbed proliferation, and reduced glycolysis in BC cells in vitro, but circ_0069094 overexpression had an opposing influence. Also, circ_0069094 knockdown reduced BC growth in vivo. Mechanically, circ_0069094 was validated as a decoy for miR-591, which targeted HK2. Importantly, circ_0069094 sponged miR-591 to regulate HK2 expression. Both miR-591 silencing and HK2 overexpression counteracted circ_0069094 inhibition-mediated influence on cell proliferation, apoptosis, and glycolysis in BC cells. In conclusion, these results indicated that circ_0069094 facilitated cell malignancy and glycolysis by upregulating HK2 through adsorbing miR-591, suggesting that circ_0069094 might be a prognostic biomarker and therapeutic target for BC.
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Affiliation(s)
- Zeyu Xing
- Department of Breast Cancer, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Xin Wang
- Department of Breast Cancer, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Jiaqi Liu
- Department of Breast Cancer, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Menglu Zhang
- Department of Breast Cancer, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Kexin Feng
- Department of Breast Cancer, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Xiang Wang
- Department of Breast Cancer, 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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16
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Samji P, Rajendran MK, Warrier VP, Ganesh A, Devarajan K. Regulation of Hippo signaling pathway in cancer: A MicroRNA perspective. Cell Signal 2020; 78:109858. [PMID: 33253912 DOI: 10.1016/j.cellsig.2020.109858] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 12/11/2022]
Abstract
Recent studies have suggested that Hippo signaling is not only involved in controlling organ size in Drosophila but can also regulate cell proliferation, tissue homeostasis, differentiation, apoptosis and regeneration. Any dysregulation of Hippo signaling, especially the hyper activation of its downstream effectors YAP/TAZ, can lead to uncontrolled cell proliferation and malignant transformation. In majority of cancers, expression of YAP/TAZ is extremely high and this increased expression of YAP/TAZ has been shown to be an independent predictor of prognosis and indicator of increased cell proliferation, metastasis and poor survival. In this review, we have summarized the most recent findings about the cross talk of Hippo signaling pathway with other signaling pathways and its regulation by different miRNAs in various cancer types. Recent evidence has suggested that Hippo pathway is also involved in mediating the resistance of different cancer cells to chemotherapeutic drugs and in a few cancer types, this is brought about by regulating miRNAs. Therefore, the delineation of the underlying mechanisms regulating the chemotherapeutic resistance might help in developing better treatment options. This review has attempted to provide an overview of different drugs/options which can be utilized to target oncogenic YAP/TAZ proteins for therapeutic interventions.
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Affiliation(s)
- Priyanka Samji
- Cancer Biology Lab, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, Chennai, India.
| | - Manoj K Rajendran
- Cancer Biology Lab, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, Chennai, India
| | - Vidya P Warrier
- Cancer Biology Lab, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, Chennai, India
| | - Akshayaa Ganesh
- Cancer Biology Lab, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, Chennai, India
| | - Karunagaran Devarajan
- Cancer Biology Lab, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, Chennai, India
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17
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Ma Q, Niu R, Huang W, Da L, Tang Y, Jiang D, Xi Y, Zhang C. Long Noncoding RNA PTPRG Antisense RNA 1 Reduces Radiosensitivity of Nonsmall Cell Lung Cancer Cells Via Regulating MiR-200c-3p/TCF4. Technol Cancer Res Treat 2020; 19:1533033820942615. [PMID: 33174523 PMCID: PMC7672737 DOI: 10.1177/1533033820942615] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background: PTPRG antisense RNA 1 has been well-documented to exert an oncogenic role in diverse neoplasms. However, the precise role of PTPRG antisense RNA 1 in regulating radiosensitivity of nonsmall cell lung cancer cells remains largely elusive. Methods: Expression levels of PTPRG antisense RNA 1 and miR-200c-3p in nonsmall cell lung cancer tissues and cells were detected by quantitative real-time polymerase chain reaction, while transcription factor 4 expression was examined by immunohistochemistry and Western blot. After nonsmall cell lung cancer cells were exposed to X-ray with different doses in vitro, Cell Counting Kit-8 assay and colony formation assay were conducted to determine the influence of PTPRG antisense RNA 1 on cell viability. Interaction between miR-200c-3p and PTPRG antisense RNA 1 as well as transcription factor 4 was investigated by dual luciferase reporter assay. Result: In nonsmall cell lung cancer tissues, the expressions of PTPRG antisense RNA 1 and transcription factor 4 were significantly upregulated, whereas the expression of miR-200c-3p was downregulated. It was also proved that PTPRG antisense RNA 1 and 3′-untranslated region of transcription factor 4 can bind to miR-200c-3p. Under X-ray irradiation, overexpressed PTPRG antisense RNA 1 could promote the viability and enhance the radioresistance of nonsmall cell lung cancer cells, and this effect was partially weakened by miR-200c-3p mimics. Transcription factor 4 was identified as a target gene of miR-200c-3p, which could be positively regulated by PTPRG antisense RNA 1. Conclusion: PTPRG antisense RNA 1 reduces the radiosensitivity of nonsmall cell lung cancer cells via modulating miR-200c-3p/TCF4 axis.
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Affiliation(s)
- Qiang Ma
- Department of Oncology, People's Hospital, Xintai, China
| | - Rungui Niu
- Department of Geratology, Shanxi Cancer Hospital, Taiyuan, China
| | - Wei Huang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Liangshan Da
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yanlei Tang
- Department of Chest Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Daowen Jiang
- Department of Chest Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yanfeng Xi
- Department of Pathology, Shanxi Cancer Hospital, Taiyuan, China
| | - Congjun Zhang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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18
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Wang Q, Mu L, Xi H, Zhang C, Yuan J, Zhu M, Li M. Upregulated miRNA-543 promotes the proliferation and migration of gastric carcinoma by downregulating KLF6. Am J Transl Res 2020; 12:5789-5796. [PMID: 33042458 PMCID: PMC7540122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 07/22/2020] [Indexed: 06/11/2023]
Abstract
This study aims to uncover the potential function of MicroRNA-543 (miRNA-543) in the pathogenesis of gastric carcinoma and the possible mechanism. MiRNA-543 levels in gastric carcinoma tissues and cell lines were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Regulatory effects of miRNA-543 on proliferative and migratory abilities of AGS and MKN45 cells were assessed. The downstream target of miRNA-543 was predicted by online bioinformatics and verified by dual-luciferase reporter gene assay. At last, rescue experiments were carried out to uncover the interaction between miRNA-543 and Krüppel-like factor 6 (KLF6) in the progression of gastric carcinoma. MiRNA-543 was upregulated in gastric carcinoma tissues and cell lines. Particularly, gastric carcinoma patients with advanced stage or positive metastasis expressed higher abundance of miRNA-543. Overexpression of miRNA-543 promoted proliferative ability in gastric carcinoma, manifesting as increased viability, EdU-positive ratio and migratory cell number in AGS and MKN45 cells. KLF6 was proved to be the downstream target of miRNA-543. Both mRNA and protein levels of KLF6 were negatively regulated by miRNA-543 in gastric carcinoma cells. Silence of KLF6 was able to reverse the regulatory effects of miRNA-543 inhibitor on proliferative and migratory abilities in gastric carcinoma. MiRNA-543 is highly expressed in gastric carcinoma. It accelerates gastric carcinoma cells to proliferate and migrate by negatively regulating KLF6 level.
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Affiliation(s)
- Qiong Wang
- Department of Pathology, The First Medical Centre, Chinese PLA General HospitalBeijing, China
| | - Lihua Mu
- Department of Clinical Pharmacology, The First Medical Centre, Chinese PLA General HospitalBeijing, China
| | - Hongqing Xi
- Department of General Surgery, The First Medical Centre, Chinese PLA General HospitalBeijing, China
| | - Chunyan Zhang
- Birth Defects Prevention and Control Technology Research Center, Chinese PLA General HospitalBeijing, China
| | - Jing Yuan
- Department of Pathology, The First Medical Centre, Chinese PLA General HospitalBeijing, China
| | - Min Zhu
- Department of Oncology, The Fifth Medical Centre, Chinese PLA General HospitalBeijing, China
| | - Mingyang Li
- Department of Gastrointestinal, The First Medical Centre, Chinese PLA General HospitalBeijing, China
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Chen X, Cao R, Liu H, Zhang T, Yuan X, Xu S. MicroRNA‑15a‑5p‑targeting oncogene YAP1 inhibits cell viability and induces cell apoptosis in cervical cancer cells. Int J Mol Med 2020; 46:1301-1310. [PMID: 32945353 PMCID: PMC7447307 DOI: 10.3892/ijmm.2020.4704] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/23/2020] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) have been reported to have important regulatory roles in the progression of several types of cancer, including cervical cancer (CC). However, the biological roles and regulatory mechanisms of miRNAs in CC remain to be fully elucidated. The aim of the present study was to examine the functions of miRNAs in CC and the possible mechanisms. Using a microarray, it was identified that miRNA-15a-5p (miR-15a-5p) was one of the most down-regulated miRNAs in CC tissues compared with adjacent noncancerous tissues. The low expression of miR-15a-5p was observed in CC tumor tissues with distant metastasis and in CC cell lines. In addition, the effects of miR-15a-5p upregulation on cell viability, apoptosis, invasion and migration of CC cells were investigated using CCK-8, flow cytometry, Transwell and wound healing assays, respectively. It was demonstrated that upregulation of miR-15a-5p significantly suppressed the viability, migration and invasion, and promoted the apoptosis of SiHa and C-33A cells. Furthermore, yes-associated protein 1 (YAP1), a well-known oncogene, was confirmed to be directly targeted by miR-15a-5p and was found to be negatively regulated by miR-15a-5p. Further correlation analysis indicated that miR-15a-5p expression was negatively correlated with YAP1 expression in CC tissues. Notably, overexpression of YAP1 abrogated the tumor suppressive effects of miR-15a-5p in CC cells. Taken together, these present findings indicated that the miR-15a-5p/YAP1 axis may provide a novel strategy for the clinical treatment of CC.
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Affiliation(s)
- Xu Chen
- Department of Obstetrics and Gynaecology, Huashan Hospital North, Fudan University, Shanghai 200040, P.R. China
| | - Ruiqin Cao
- Department of Obstetrics and Gynaecology, Huashan Hospital North, Fudan University, Shanghai 200040, P.R. China
| | - Haifang Liu
- Department of Obstetrics and Gynaecology, Huashan Hospital North, Fudan University, Shanghai 200040, P.R. China
| | - Tuanying Zhang
- Department of Obstetrics and Gynaecology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Xinrong Yuan
- Department of Obstetrics and Gynaecology, No.1 Hospital of Naval Force of Southern Theater Command, PLA, Zhanjiang, Guangdong 524005, P.R. China
| | - Shuxiang Xu
- Department of Obstetrics and Gynaecology, Huashan Hospital North, Fudan University, Shanghai 200040, P.R. China
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20
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Li G, Gao L, Zhao J, Liu D, Li H, Hu M. LncRNA ANRIL/miR-7-5p/TCF4 axis contributes to the progression of T cell acute lymphoblastic leukemia. Cancer Cell Int 2020; 20:335. [PMID: 32714094 PMCID: PMC7376839 DOI: 10.1186/s12935-020-01376-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 06/24/2020] [Indexed: 02/08/2023] Open
Abstract
Background Antisense non-coding RNA in the INK4 locus (ANRIL) is of great importance in cell biological behaviors, and ANRIL functions in many kinds of cancers including leukemia. However, the mechanism of ANRIL in the progression of T-cell acute lymphoblastic leukemia (T-ALL) has not been clarified clearly. Methods qRT-PCR was performed to detect ANRIL expression in T-ALL samples. T-ALL cell lines (MOLT4, CCRF-CEM and KOPT-K1) were used as the cell models. The function of ANRIL on T-ALL cells was investigated by CCK-8 assays, Transwell assays, and apoptosis experiments in vitro. qRT-PCR, Western blot, luciferase reporter assay and RIP assay were used to confirm the interactions between ANRIL and miR-7-5p, miR-7-5p and its target gene transcription factor 4 (TCF4). Results ANRIL was significantly up-regulated in T-ALL samples. Its knockdown markedly inhibited viability, migration and invasion of T-ALL cells, but its overexpression exerted the opposite effects. TCF4 was proved to be a target gene of miR-7-5p. ANRIL down-regulated miR-7-5p via sponging it and in turn up-regulated TCF4. Conclusions LncRNA ANRIL can modulate malignant phenotypes of T-ALL cells, possibly by regulating miR-7-5p/TCF4 axis, and it serves as a potential therapeutic target for T-ALL.
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Affiliation(s)
- Gang Li
- Department of Clinical Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Weiwu Road, No. 7, Zhengzhou, Henan 450003 China
| | - Lan Gao
- Department of Clinical Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Weiwu Road, No. 7, Zhengzhou, Henan 450003 China
| | - Jing Zhao
- Department of Clinical Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Weiwu Road, No. 7, Zhengzhou, Henan 450003 China
| | - Dejun Liu
- Department of Clinical Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Weiwu Road, No. 7, Zhengzhou, Henan 450003 China
| | - Hui Li
- Department of Clinical Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Weiwu Road, No. 7, Zhengzhou, Henan 450003 China
| | - Min Hu
- Department of Clinical Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Weiwu Road, No. 7, Zhengzhou, Henan 450003 China
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21
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Wong JS, Cheah YK. Potential miRNAs for miRNA-Based Therapeutics in Breast Cancer. Noncoding RNA 2020; 6:E29. [PMID: 32668603 PMCID: PMC7549352 DOI: 10.3390/ncrna6030029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that can post-transcriptionally regulate the genes involved in critical cellular processes. The aberrant expressions of oncogenic or tumor suppressor miRNAs have been associated with cancer progression and malignancies. This resulted in the dysregulation of signaling pathways involved in cell proliferation, apoptosis and survival, metastasis, cancer recurrence and chemoresistance. In this review, we will first (i) provide an overview of the miRNA biogenesis pathways, and in vitro and in vivo models for research, (ii) summarize the most recent findings on the roles of microRNAs (miRNAs) that could potentially be used for miRNA-based therapy in the treatment of breast cancer and (iii) discuss the various therapeutic applications.
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Affiliation(s)
- Jun Sheng Wong
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Yoke Kqueen Cheah
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
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22
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Mohammadi S, Arefnezhad R, Danaii S, Yousefi M. New insights into the core Hippo signaling and biological macromolecules interactions in the biology of solid tumors. Biofactors 2020; 46:514-530. [PMID: 32445262 DOI: 10.1002/biof.1634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 12/26/2022]
Abstract
As an evolutionarily conserved pathway, Hippo signaling pathway impacts different pathology and physiology processes such as wound healing, tissue repair/size and regeneration. When some components of Hippo signaling dysregulated, it affects cancer cells proliferation. Moreover, the relation Hippo pathway with other signaling including Wnt, TGFβ, Notch, and EGFR signaling leaves effect on the proliferation of cancer cells. Utilizing a number of therapeutic approaches, such as siRNAs and long noncoding RNA (lncRNA) to prevent cancer cells through the targeting of Hippo pathways, can provide new insights into cancer target therapy. The purpose of present review, first of all, is to demonstrate the importance of Hippo signaling and its relation with other signaling pathways in cancer. It also tries to demonstrate targeting Hippo signaling progress in cancer therapy.
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Affiliation(s)
- Solmaz Mohammadi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Shahla Danaii
- Gynecology Department, Eastern Azerbaijan ACECR ART Center, Eastern Azerbaijan Branch of ACECR, Tabriz, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Depatment of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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23
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Dissecting miRNA facilitated physiology and function in human breast cancer for therapeutic intervention. Semin Cancer Biol 2020; 72:46-64. [PMID: 32497683 DOI: 10.1016/j.semcancer.2020.05.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/17/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022]
Abstract
MicroRNAs (miRNAs) are key epigenomic regulators of biological processes in animals and plants. These small non coding RNAs form a complex networks that regulate cellular function and development. MiRNAs prevent translation by either inactivation or inducing degradation of mRNA, a major concern in post-transcriptional gene regulation. Aberrant regulation of gene expression by miRNAs is frequently observed in cancer. Overexpression of various 'oncomiRs' and silencing of tumor suppressor miRNAs are associated with various types of human cancers, although overall downregulation of miRNA expression is reported as a hallmark of cancer. Modulations of the total pool of cellular miRNA by alteration in genetic and epigenetic factors associated with the biogenesis of miRNA machinery. It also depends on the availability of cellular miRNAs from its store in the organelles which affect tumor development and cancer progression. Here, we have dissected the roles and pathways of various miRNAs during normal cellular and molecular functions as well as during breast cancer progression. Recent research works and prevailing views implicate that there are two major types of miRNAs; (i) intracellular miRNAs and (ii) extracellular miRNAs. Concept, that the functions of intracellular miRNAs are driven by cellular organelles in mammalian cells. Extracellular miRNAs function in cell-cell communication in extracellular spaces and distance cells through circulation. A detailed understanding of organelle driven miRNA function and the precise role of extracellular miRNAs, pre- and post-therapeutic implications of miRNAs in this scenario would open several avenues for further understanding of miRNA function and can be better exploited for the treatment of breast cancers.
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Shen Y, Han Z, Liu S, Jiao Y, Li Y, Yuan H. Curcumin Inhibits the Tumorigenesis of Breast Cancer by Blocking Tafazzin/Yes-Associated Protein Axis. Cancer Manag Res 2020; 12:1493-1502. [PMID: 32161501 PMCID: PMC7051254 DOI: 10.2147/cmar.s246691] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 02/14/2020] [Indexed: 01/10/2023] Open
Abstract
Purpose This study was aimed to explore the anti-tumor effect of curcumin on breast cancer (BC) and the underlying mechanism involving Tafazzin (TAZ)/Yes-associated protein (YAP) axis. Methods Different concentrations of curcumin (0, 10, 20 and 30 μM) were used to treat BC cells (MCF-7 and MDA-MB-231 cells). The viability, colony formation, apoptosis, migration, and invasion of BC cells were detected by MTT, colony formation, flow cytometry, wound-healing and transwell assay, respectively. The protein expression of TAZ and YAP (effectors of Hippo signaling pathway) was detected by Western blot. MDA-MB-231 cells were injected into mice to verify the anti-tumor effect of curcumin in vivo. Results Curcumin (20 and 30 μM) inhibited the proliferation, migration and invasion, and promoted the apoptosis of MCF-7 and MDA-MB-231 cells. Curcumin decreased the protein expression of TAZ and YAP in MCF-7 and MDA-MB-231 cells. Overexpression of YAP reversed the anti-tumor effect of curcumin on MDA-MB-231 cells. In addition, curcumin (100, 200 and 300 mg/kg/d) inhibited the growth of tumor xenografts in mice, and down-regulated the protein expression of TAZ and YAP in tumor xenografts. However, curcumin at a concentration of 300 mg/kg/d slowed the increasing of body weight in mice. Conclusion Curcumin inhibited the tumorigenesis of BC by blocking TAZ/YAP axis.
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Affiliation(s)
- Yuxiu Shen
- Department of Pharmacology, Affiliated Hospital of Beihua University, Jilin City, Jilin Province 132000, People's Republic of China
| | - Zaigang Han
- Department of Pharmacology, Affiliated Hospital of Beihua University, Jilin City, Jilin Province 132000, People's Republic of China
| | - Shuang Liu
- Department of Pharmacology, Affiliated Hospital of Beihua University, Jilin City, Jilin Province 132000, People's Republic of China
| | - Yang Jiao
- Department of Pharmacology, Affiliated Hospital of Beihua University, Jilin City, Jilin Province 132000, People's Republic of China
| | - Ying Li
- Department of Pharmacology, Affiliated Hospital of Beihua University, Jilin City, Jilin Province 132000, People's Republic of China
| | - Hongyan Yuan
- Department of Pharmacology, Affiliated Hospital of Beihua University, Jilin City, Jilin Province 132000, People's Republic of China
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Luo X, Tang J, Xuan H, Liu J, Li X. Identification and Validation of a Potent Multi-miRNA Signature for Prediction of Prognosis of Osteosarcoma Patients. Med Sci Monit 2020; 26:e919272. [PMID: 32098942 PMCID: PMC7060510 DOI: 10.12659/msm.919272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background Osteosarcoma, the most common solid malignancy, has high incidence and mortality rates. We constructed a miRNA-based signature that can be used to assess the prognosis of osteosarcoma patients. Material/Methods The miRNA profile was derived from the Gene Expression Omnibus (GEO) website, with matched clinical records. The miRNA-based overall survival (OS)-predicting signature was established by LASSO Cox regression analysis. Receiver operating characteristic (ROC) curve and Kaplan-Meier (K-M) analyses were performed to examine the stability and discriminatory ability of the OS-predicting signatures. Pathway enrichment analyses were performed to uncover potential mechanisms. Results Three miRNAs (miR-153, miR-212, and miR-591) independently related to the OS were extracted to build a risk score formula. The ROC curve and K-M analyses revealed good discrimination ability of the OS signature for osteosarcoma patients in both the training cohort (P=0.00015, AUC=0.962) and the validation cohort (P=0.0065, AUC=0.793). As shown in multivariate analysis, the classifier showed favorable predictive accuracy similar to the recurrence status to be an independent risk factor for osteosarcoma. Furthermore, the nomogram showed a synergistic effect by combining the clinicopathological features with our classifier. Also, the enrichment analyses of the target genes may contribute to improved treatment of osteosarcoma. Conclusions The 3-miRNA-based classifier serves as an effective prognosis-predicting signature for osteosarcoma patients.
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Affiliation(s)
- Xinle Luo
- Department of Trauma and Joint Orthopedics, The People's Hospital of Longhua, Shenzhen, Guangdong, China (mainland)
| | - Jiuyang Tang
- Department of Trauma and Joint Orthopedics, The People's Hospital of Longhua, Shenzhen, Guangdong, China (mainland)
| | - Huabing Xuan
- Department of Trauma and Joint Orthopedics, The People's Hospital of Longhua, Shenzhen, Guangdong, China (mainland)
| | - Jianlin Liu
- Department of Trauma and Joint Orthopedics, The People's Hospital of Longhua, Shenzhen, Guangdong, China (mainland)
| | - Xi Li
- Department of Trauma and Joint Orthopedics, The People's Hospital of Longhua, Shenzhen, Guangdong, China (mainland)
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Liu X, Zhou Y, Ning YE, Gu H, Tong Y, Wang N. MiR-195-5p Inhibits Malignant Progression of Cervical Cancer by Targeting YAP1. Onco Targets Ther 2020; 13:931-944. [PMID: 32099397 PMCID: PMC6996614 DOI: 10.2147/ott.s227826] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 01/20/2020] [Indexed: 02/06/2023] Open
Abstract
Purpose Our previous studies have shown that miR-195 is reduced in cervical cancer tissues, and that upregulation of miR-195 suppressed cervical cancer cell growth and induced a cell cycle block. In this study, we aimed to further elucidate the mechanism of action between miR-195-5p and Yes-associated protein 1 (YAP1) in the malignant progression of cervical cancer. Methods MiR-195-5p and YAP1 were detected using qRT-PCR in cervical cancer cells transfected with miR-195-5p mimics or inhibitor. Cell proliferation, migration, and invasion ability were detected using MTT, wound healing, and transwell invasion assays. Dual luciferase reporter assay, qRT-PCR, and Western blot analysis were used to demonstrate that YAP1 was a target of miR-195-5p. Results Our results showed that miR-195-5p is negatively correlated with YAP1 protein levels but not with mRNA expression. Moreover, upregulation of miR-195-5p by transient transfection with miR-195-5p mimics in HeLa and SiHa cells inhibited cell proliferation, migration ability, invasiveness, and the EMT. Conversely, miR-195-5p downregulation produced opposite results. In addition, multiple miRNA target prediction sites showed that YAP1 was a potential target gene; this was confirmed by dual luciferase assay. Rescue experiments further confirmed that YAP1 is involved in miR-195-5p-mediated inhibition of proliferation, migration ability, invasiveness, and the EMT of cervical cancer cells. Conclusion Taken together, our data suggest that miR-195-5p may act as a tumor suppressor which could provide a theoretical basis for cervical cancer patient targeted therapy.
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Affiliation(s)
- Xiaomin Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, People's Republic of China
| | - Yi Zhou
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, People's Republic of China
| | - Yu-E Ning
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, People's Republic of China
| | - Hui Gu
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, Shenyang 110004, People's Republic of China
| | - Yuxin Tong
- Medical Research Center, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, People's Republic of China
| | - Ning Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, People's Republic of China
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Luo X, Wang J, Wei X, Wang S, Wang A. Knockdown of lncRNA MFI2-AS1 inhibits lipopolysaccharide-induced osteoarthritis progression by miR-130a-3p/TCF4. Life Sci 2019; 240:117019. [PMID: 31678554 DOI: 10.1016/j.lfs.2019.117019] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 10/16/2019] [Accepted: 10/27/2019] [Indexed: 12/11/2022]
Abstract
AIMS Long noncoding RNA melanotransferrin antisense RNA (MFI2-AS1) plays a vital role in the development of multiple diseases. This study aimed to investigate the effect of this lncRNA on osteoarthritis progression and explore the interaction among MFI2-AS1, microRNA (miR)-130a-3p and transcription factor 4 (TCF4). METHODS Forty-six knee osteoarthritis tissues and 28 normal samples were collected. Human chondrocytes C28/I2 cells treated by lipopolysaccharide (LPS) were used as the model of osteoarthritis. The expression levels of MFI2-AS1, miR-130a-3p and TCF4 were detected by quantitative real-time polymerase chain reaction or western blot. LPS-induced chondrocytes injury was investigated by cell viability, apoptosis, inflammatory response and extracellular matrix degradation using MTT, flow cytometry, enzyme-linked immunosorbent assay and western blot. The target association between miR-130a-3p and MFI2-AS1 or TCF4 was confirmed by luciferase reporter assay and RNA immunoprecipitation. RESULTS MFI2-AS1 expression was increased in osteoarthritis tissues and LPS-treated C28/I2 cells. Silence of MFI2-AS1 attenuated LPS-induced viability suppression, apoptosis production, inflammatory response and extracellular matrix degradation. MFI2-AS1 was validated as a decoy of miR-130a-3p and TCF4 was confirmed as a target of miR-130a-3p. miR-130a-3p overexpression inhibited LPS-induced cell injury in C28/I2 cells by decreasing TCF4 expression. Moreover, knockdown of MFI2-AS1 alleviated LPS-induced cell injury in C28/I2 cells by mediating miR-130a-3p and TCF4. CONCLUSION Knockdown of MFI2-AS1 increased cell viability but suppressed apoptosis, inflammatory response and extracellular matrix degradation in LPS-treated chondrocytes by increasing miR-130a-3p and decreasing TCF4, indicating a novel target for the treatment of osteoarthritis.
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Affiliation(s)
- Xiaofei Luo
- Zhengzhou Orthopaedics Hospital, 450052, China
| | | | - Xuan Wei
- Zhengzhou Orthopaedics Hospital, 450052, China.
| | | | - Aiguo Wang
- Zhengzhou Orthopaedics Hospital, 450052, China
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Rahman MM, Brane AC, Tollefsbol TO. MicroRNAs and Epigenetics Strategies to Reverse Breast Cancer. Cells 2019; 8:cells8101214. [PMID: 31597272 PMCID: PMC6829616 DOI: 10.3390/cells8101214] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/04/2019] [Accepted: 10/06/2019] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is a sporadic disease with genetic and epigenetic components. Genomic instability in breast cancer leads to mutations, copy number variations, and genetic rearrangements, while epigenetic remodeling involves alteration by DNA methylation, histone modification and microRNAs (miRNAs) of gene expression profiles. The accrued scientific findings strongly suggest epigenetic dysregulation in breast cancer pathogenesis though genomic instability is central to breast cancer hallmarks. Being reversible and plastic, epigenetic processes appear more amenable toward therapeutic intervention than the more unidirectional genetic alterations. In this review, we discuss the epigenetic reprogramming associated with breast cancer such as shuffling of DNA methylation, histone acetylation, histone methylation, and miRNAs expression profiles. As part of this, we illustrate how epigenetic instability orchestrates the attainment of cancer hallmarks which stimulate the neoplastic transformation-tumorigenesis-malignancy cascades. As reversibility of epigenetic controls is a promising feature to optimize for devising novel therapeutic approaches, we also focus on the strategies for restoring the epistate that favor improved disease outcome and therapeutic intervention.
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Affiliation(s)
- Mohammad Mijanur Rahman
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Andrew C Brane
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Trygve O Tollefsbol
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Center for Healthy Aging, University of Alabama Birmingham, 1530 3rd Avenue South, Birmingham, AL 35294, USA.
- Comprehensive Cancer Center, University of Alabama Birmingham, 1802 6th Avenue South, Birmingham, AL 35294, USA.
- Nutrition Obesity Research Center, University of Alabama Birmingham, 1675 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Diabetes Center, University of Alabama Birmingham, 1825 University Boulevard, Birmingham, AL 35294, USA.
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