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Wang T, Gao T, Fujisawa M, Ohara T, Sakaguchi M, Yoshimura T, Matsukawa A. SPRED2 Is a Novel Regulator of Autophagy in Hepatocellular Carcinoma Cells and Normal Hepatocytes. Int J Mol Sci 2024; 25:6269. [PMID: 38892460 PMCID: PMC11172722 DOI: 10.3390/ijms25116269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/29/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024] Open
Abstract
Sprouty-related enabled/vasodilator-stimulated phosphoprotein homology 1 domain containing 2 (SPRED2) is an inhibitor of the mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase (ERK) pathway and has been shown to promote autophagy in several cancers. Here, we aimed to determine whether SPRED2 plays a role in autophagy in hepatocellular carcinoma (HCC) cells. The Cancer Genome Atlas (TCGA) Liver Cancer Database showed a negative association between the level of SPRED2 and p62, a ubiquitin-binding scaffold protein that accumulates when autophagy is inhibited. Immunohistochemically, accumulation of p62 was detected in human HCC tissues with low SPRED2 expression. Overexpression of SPRED2 in HCC cells increased the number of autophagosomes and autophagic vacuoles containing damaged mitochondria, decreased p62 levels, and increased levels of light-chain-3 (LC3)-II, an autophagy marker. In contrast, SPRED2 deficiency increased p62 levels and decreased LC3-II levels. SPRED2 expression levels were negatively correlated with translocase of outer mitochondrial membrane 20 (TOM20) expression levels, suggesting its role in mitophagy. Mechanistically, SPRED2 overexpression reduced ERK activation followed by the mechanistic or mammalian target of rapamycin complex 1 (mTORC1)-mediated signaling pathway, and SPRED2 deficiency showed the opposite pattern. Finally, hepatic autophagy was impaired in the liver of SPRED2-deficient mice with hepatic lipid droplet accumulation in response to starvation. These results indicate that SPRED2 is a critical regulator of autophagy not only in HCC cells, but also in hepatocytes, and thus the manipulation of this process may provide new insights into liver pathology.
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Affiliation(s)
- Tianyi Wang
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Tong Gao
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Masayoshi Fujisawa
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Toshiaki Ohara
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Masakiyo Sakaguchi
- Department of Cell Biology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Teizo Yoshimura
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Akihiro Matsukawa
- Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
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Zhang Y, Wang Q, Xue H, Guo Y, Wei S, Li F, Gong L, Pan W, Jiang P. Epigenetic Regulation of Autophagy in Bone Metabolism. FUNCTION 2024; 5:zqae004. [PMID: 38486976 PMCID: PMC10935486 DOI: 10.1093/function/zqae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/18/2024] [Accepted: 01/24/2024] [Indexed: 03/17/2024] Open
Abstract
The skeletal system is crucial for supporting bodily functions, protecting vital organs, facilitating hematopoiesis, and storing essential minerals. Skeletal homeostasis, which includes aspects such as bone density, structural integrity, and regenerative processes, is essential for normal skeletal function. Autophagy, an intricate intracellular mechanism for degrading and recycling cellular components, plays a multifaceted role in bone metabolism. It involves sequestering cellular waste, damaged proteins, and organelles within autophagosomes, which are then degraded and recycled. Autophagy's impact on bone health varies depending on factors such as regulation, cell type, environmental cues, and physiological context. Despite being traditionally considered a cytoplasmic process, autophagy is subject to transcriptional and epigenetic regulation within the nucleus. However, the precise influence of epigenetic regulation, including DNA methylation, histone modifications, and non-coding RNA expression, on cellular fate remains incompletely understood. The interplay between autophagy and epigenetic modifications adds complexity to bone cell regulation. This article provides an in-depth exploration of the intricate interplay between these two regulatory paradigms, with a focus on the epigenetic control of autophagy in bone metabolism. Such an understanding enhances our knowledge of bone metabolism-related disorders and offers insights for the development of targeted therapeutic strategies.
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Affiliation(s)
- Yazhou Zhang
- Department of Foot and Ankle Surgery, Tengzhou Central People’s Hospital, Tengzhou 277500, China
| | - Qianqian Wang
- Department of Pediatric Intensive Care Unit, Tengzhou Central People’s Hospital, Tengzhou 277500, China
| | - Hongjia Xue
- Department of Computer Science, University College London, London, WC1E 6BT, UK
| | - Yujin Guo
- Institute of Clinical Pharmacy & Pharmacology, Jining First People’s Hospital, Jining 272000, China
| | - Shanshan Wei
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250000, China
- Department of Graduate, Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan 250000, China
| | - Fengfeng Li
- Department of Neurosurgery, Tengzhou Central People’s Hospital, Tengzhou 277500, China
| | - Linqiang Gong
- Department of Gastroenterology, Tengzhou Central People's Hospital, Tengzhou 277500, China
| | - Weiliang Pan
- Department of Foot and Ankle Surgery, Tengzhou Central People’s Hospital, Tengzhou 277500, China
| | - Pei Jiang
- Translational Pharmaceutical Laboratory, Jining First People’s Hospital, Shandong First Medical University, Jining 272000, China
- Institute of Translational Pharmacy, Jining Medical Research Academy, Jining 272000, China
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Griffin EN, Jucius T, Sim SE, Harris BS, Heinz S, Ackerman SL. RREB1 regulates neuronal proteostasis and the microtubule network. SCIENCE ADVANCES 2024; 10:eadh3929. [PMID: 38198538 PMCID: PMC10780896 DOI: 10.1126/sciadv.adh3929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 12/12/2023] [Indexed: 01/12/2024]
Abstract
Transcription factors play vital roles in neuron development; however, little is known about the role of these proteins in maintaining neuronal homeostasis. Here, we show that the transcription factor RREB1 (Ras-responsive element-binding protein 1) is essential for neuron survival in the mammalian brain. A spontaneous mouse mutation causing loss of a nervous system-enriched Rreb1 transcript is associated with progressive loss of cerebellar Purkinje cells and ataxia. Analysis of chromatin immunoprecipitation and sequencing, along with RNA sequencing data revealed dysregulation of RREB1 targets associated with the microtubule cytoskeleton. In agreement with the known role of microtubules in dendritic development, dendritic complexity was disrupted in Rreb1-deficient neurons. Analysis of sequencing data also suggested that RREB1 plays a role in the endomembrane system. Mutant Purkinje cells had fewer numbers of autophagosomes and lysosomes and contained P62- and ubiquitin-positive inclusions. Together, these studies demonstrate that RREB1 functions to maintain the microtubule network and proteostasis in mammalian neurons.
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Affiliation(s)
- Emily N. Griffin
- Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, Department of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Thomas Jucius
- Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, Department of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Su-Eon Sim
- Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, Department of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA
| | | | - Sven Heinz
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Susan L. Ackerman
- Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, Department of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA
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Yun C, Zhang J, Morigele. miR-488-3p Represses Malignant Behaviors and Facilitates Autophagy of Osteosarcoma Cells by Targeting Neurensin-2. Curr Pharm Biotechnol 2024; 25:1264-1275. [PMID: 37365792 DOI: 10.2174/1389201024666230626102837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023]
Abstract
OBJECTIVES Osteosarcoma (OS) is a primary bone sarcoma that primarily affects children and adolescents and poses significant challenges in terms of treatment. microRNAs (miRNAs) have been implicated in OS cell growth and regulation. This study sought to investigate the role of hsa-miR-488-3p in autophagy and apoptosis of OS cells. METHODS The expression of miR-488-3p was examined in normal human osteoblasts and OS cell lines (U2OS, Saos2, and OS 99-1) using RT-qPCR. U2OS cells were transfected with miR-488- 3p-mimic, and cell viability, apoptosis, migration, and invasion were assessed using CCK-8, flow cytometry, and Transwell assays, respectively. Western blotting and immunofluorescence were employed to measure apoptosis- and autophagy-related protein levels, as well as the autophagosome marker LC3. The binding sites between miR-488-3p and neurensin-2 (NRSN2) were predicted using online bioinformatics tools and confirmed by a dual-luciferase assay. Functional rescue experiments were conducted by co-transfecting miR-488-3p-mimic and pcDNA3.1-NRSN2 into U2OS cells to validate the effects of the miR-488-3p/NRSN2 axis on OS cell behaviors. Additionally, 3-MA, an autophagy inhibitor, was used to investigate the relationship between miR- 488-3p/NRSN2 and cell apoptosis and autophagy. RESULTS miR-488-3p was found to be downregulated in OS cell lines, and its over-expression inhibited the viability, migration, and invasion while promoting apoptosis of U2OS cells. NRSN2 was identified as a direct target of miR-488-3p. Over-expression of NRSN2 partially counteracted the inhibitory effects of miR-488-3p on malignant behaviors of U2OS cells. Furthermore, miR- 488-3p induced autophagy in U2OS cells through NRSN2-mediated mechanisms. The autophagy inhibitor 3-MA partially reversed the effects of the miR-488-3p/NRSN2 axis in U2OS cells. CONCLUSION Our findings demonstrate that miR-488-3p suppresses malignant behaviors and promotes autophagy in OS cells by targeting NRSN2. This study provides insights into the role of miR-488-3p in OS pathogenesis and suggests its potential as a therapeutic target for OS treatment.
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Affiliation(s)
- Chao Yun
- Department of Orthopedics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010059, Mongolia, China
| | - Jincai Zhang
- Department of Orthopedics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010059, Mongolia, China
| | - Morigele
- Department of Orthopedics, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010059, Mongolia, China
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Almansa-Gómez S, Prieto-Ruiz F, Cansado J, Madrid M. Autophagy Modulation as a Potential Therapeutic Strategy in Osteosarcoma: Current Insights and Future Perspectives. Int J Mol Sci 2023; 24:13827. [PMID: 37762129 PMCID: PMC10531374 DOI: 10.3390/ijms241813827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Autophagy, the process that enables the recycling and degradation of cellular components, is essential for homeostasis, which occurs in response to various types of stress. Autophagy plays an important role in the genesis and evolution of osteosarcoma (OS). The conventional treatment of OS has limitations and is not always effective at controlling the disease. Therefore, numerous researchers have analyzed how controlling autophagy could be used as a treatment or strategy to reverse resistance to therapy in OS. They highlight how the inhibition of autophagy improves the efficacy of chemotherapeutic treatments and how the promotion of autophagy could prove positive in OS therapy. The modulation of autophagy can also be directed against OS stem cells, improving treatment efficacy and preventing cancer recurrence. Despite promising findings, future studies are needed to elucidate the molecular mechanisms of autophagy and its relationship to OS, as well as the mechanisms underlying the functioning of autophagic modulators. Careful evaluation is required as autophagy modulation may have adverse effects on normal cells, and the optimization of autophagic modulators for use as drugs in OS is imperative.
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Affiliation(s)
| | | | - José Cansado
- Yeast Physiology Group, Departamento de Genética y Microbiología, Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain; (S.A.-G.); (F.P.-R.)
| | - Marisa Madrid
- Yeast Physiology Group, Departamento de Genética y Microbiología, Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain; (S.A.-G.); (F.P.-R.)
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The mechanism of VCP-mediated metastasis of osteosarcoma based on cell autophagy and the EMT pathway. Clin Transl Oncol 2023; 25:653-661. [PMID: 36284060 DOI: 10.1007/s12094-022-02972-y] [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: 07/10/2022] [Accepted: 09/27/2022] [Indexed: 10/31/2022]
Abstract
OBJECTIVE Study of the molecular mechanisms of metastasis is still the research focus for osteosarcoma (OS) prevention. This study investigates the mechanism of valosin-containing protein (VCP) promoting OS metastasis in vitro through autophagy and epithelial-mesenchymal transition (EMT). METHODS Different cell lines of osteosarcoma (143B and MG63) were adopted in this study. The level of VCP expression in osteosarcoma cells was changed, and the level of autophagy and the progression of the epithelial-mesenchymal transition (EMT) were observed. Then autophagy and EMT in OS cells were changed artificially, and proliferation and migration ability were observed. RESULTS The expression of LC3II/I was decreased, but the insolubilized P62 protein expression was increased in the VCP inhibiting group and the autophagy inhibitor treatment group. Simultaneously, E-cadherin protein expression increased while N-cadherin protein expression decreased in the VCP inhibiting group but increased in the TGF-β1 treatment group. In addition, suppressing VCP can cause a decrease in Transforming Growth Factor β1 (TGF-β1), smad2, smad3, phosphorylated smad2 (p-smad2), and phosphorylated smad3 (p-smad3). Autophagy inhibitors and agonists have no significant effect on the migration and invasion of OS cells but can significantly affect the ability of cells to resist anoikis. EMT inhibitors and agonists have a proportional effect on the migration and invasion of OS cells. CONCLUSION VCP is likely to promote the migration and invasion of OS cells by inducing EMT, possibly via TGF-β1/smad2/3 signaling pathway. In this process, VCP-mediated autophagy may contribute to successful distant metastasis of tumor cells indirectly.
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Ning B, Liu Y, Huang T, Wei Y. Autophagy and its role in osteosarcoma. Cancer Med 2023; 12:5676-5687. [PMID: 36789748 PMCID: PMC10028045 DOI: 10.1002/cam4.5407] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 10/10/2022] [Accepted: 10/24/2022] [Indexed: 02/16/2023] Open
Abstract
Osteosarcoma (OS) is the most common bone malignancy and preferably occurs in children and adolescents. Despite significant advances in surgery and chemotherapy for OS over the past few years, overall survival rates of OS have reached a bottleneck. Thus, extensive researches aimed at developing new therapeutic targets for OS are urgently needed. Autophagy, a conserved process which allows cells to recycle altered or unused organelles and cellular components, has been proven to play a critical role in multiple biological processes in OS. In this article, we summarized the association between autophagy and proliferation, metastasis, chemotherapy, radiotherapy, and immunotherapy of OS, revealing that autophagy-related genes and pathways could serve as potential targets for OS therapy.
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Affiliation(s)
- Biao Ning
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Key Laboratory of Tumor Biological Behaviors Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Cancer Clinical Study Center Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yixin Liu
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Key Laboratory of Tumor Biological Behaviors Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Cancer Clinical Study Center Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Tianhe Huang
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Key Laboratory of Tumor Biological Behaviors Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Cancer Clinical Study Center Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yongchang Wei
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Key Laboratory of Tumor Biological Behaviors Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Cancer Clinical Study Center Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
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Ren Z, Xiao W, He M, Bai L. Chitosan targets PI3K/Akt/FoxO3a axis to up-regulate FAM172A and suppress MAPK/ERK pathway to exert anti-tumor effect in osteosarcoma. Chem Biol Interact 2023; 373:110354. [PMID: 36706893 DOI: 10.1016/j.cbi.2023.110354] [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: 10/11/2022] [Revised: 01/09/2023] [Accepted: 01/17/2023] [Indexed: 01/26/2023]
Abstract
Osteosarcoma (OS) is a serve and the most frequent primary malignant tumor of bone. Chitosan was reported to have anti-tumor effect on human cancers including OS. However, the molecular mechanism by which chitosan suppresses tumor growth is not fully illustrated. In this study, human OS cell lines, including both Saos-2 and U2OS cells, were used to dissect the underlying mechanisms. RNA sequencing results show that a candidate biomarker family with sequence similarity 172 member A (FAM172A) was up-regulated in both of the two cell lines treated with chitosan. We observed that the mitogen-activated protein kinase (MAPK) signaling pathway could be inactivated by chitosan, and the MAPK inhibition caused by chitosan was reversed by FAM172A knockdown. Moreover, we uncovered a direct interaction between C-terminal domain of FAM172A (311-415) and mitogen-activated protein kinase kinase 1 (MEK1) (270-307) by immunoprecipitation assay. Finally, we also found that chitosan could bind with subunit p85 of PI3K to further inactivate the PI3K/Akt pathway. Taken together, our study demonstrates that chitosan binds with PI3K p85 subunit to suppress the activity of PI3K/Akt pathway to up-regulate the expression of FAM172A, and which exerts its function by suppressing phosphorylation of MEK1/2 and blocking the activity of MAPK/ERK signaling pathway. Taken together, our study deepens the understanding of the molecular mechanism of MAPK/ERK pathway inhibition induced by chitosan, and provides insights into the development of new targets to enhance the pharmacological effect of chitosan against OS.
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Affiliation(s)
- Zhaozhou Ren
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Wan'an Xiao
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Ming He
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Lunhao Bai
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China.
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Regulation of the Epithelial to Mesenchymal Transition in Osteosarcoma. Biomolecules 2023; 13:biom13020398. [PMID: 36830767 PMCID: PMC9953423 DOI: 10.3390/biom13020398] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
The epithelial to mesenchymal transition (EMT) is a cellular process that has been linked to the promotion of aggressive cellular features in many cancer types. It is characterized by the loss of the epithelial cell phenotype and a shift to a more mesenchymal phenotype and is accompanied by an associated change in cell markers. EMT is highly complex and regulated via multiple signaling pathways. While the importance of EMT is classically described for carcinomas-cancers of epithelial origin-it has also been clearly demonstrated in non-epithelial cancers, including osteosarcoma (OS), a primary bone cancer predominantly affecting children and young adults. Recent studies examining EMT in OS have highlighted regulatory roles for multiple proteins, non-coding nucleic acids, and components of the tumor micro-environment. This review serves to summarize these experimental findings, identify key families of regulatory molecules, and identify potential therapeutic targets specific to the EMT process in OS.
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miR-19-3p Targets PTEN to Regulate Cervical Cancer Cell Proliferation, Invasion, and Autophagy. Genet Res (Camb) 2023; 2023:4784500. [PMID: 36908850 PMCID: PMC10005872 DOI: 10.1155/2023/4784500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 11/09/2022] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
Background Cervical cancer is the second most common cancer among women worldwide. Extensive studies have shown that microRNAs (miRNA/miR) can regulate the formation, progression, and metastasis of cancer. The purpose of this study was to investigate the effect of miR-19-3p on the proliferation, invasion, and autophagy of cervical cancer cells and to explore the underlying mechanism. Methods SiHa and HeLa cells were transfected with miR-19-3p mimic and inhibitor. miR-19-3p and PTEN expression were detected using real-time quantitative PCR and western blot, respectively. The binding between miR-19-3p and PTEN was predicted using Targetscan7.2 and verified by a dual-luciferase reporter gene assay. The effects of miR-19-3p on cell invasion and proliferation were evaluated by Transwell assays and MTT, respectively. The effect of miR-19-3p on autophagy was observed using fluorescence microscopy. Results The expression of miR-19-3p in cervical cancer tissues and SiHa and HeLa cells was significantly upregulated, whereas the expression of PTEN was significantly downregulated. PTEN was one of the direct targets of miR-19-3p. The miR-19-3p mimic significantly reduced the apoptosis rate and autophagy and promoted cell proliferation and invasion of the SiHa and HeLa cells. Conclusion In summary, miR-19b-3p can target PTEN to regulate the proliferation, invasion, and autophagy of cervical cancer cells. Our findings indicate the potential of miR-19-3p as a target for cervical cancer treatment in the future.
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Zhao H, Jiang H, Zhang H, Sun Z, Lin Q, Wang T, Yu T, Zhang Y. Adipose-Derived Mesenchymal Stem Cell-Derived Extracellular Vesicles Rescue Tendon Injury in Rat via the miR-19 a/IGFBP3 Axis. Stem Cells Int 2022; 2022:4197473. [PMID: 36132169 PMCID: PMC9484934 DOI: 10.1155/2022/4197473] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/05/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
Purpose Adipose-derived mesenchymal stem cells (ADSCs) are increasingly applied in tendon repair. However, the underlying mechanisms of ADSC-derived extracellular vesicles (EVs) in tendon healing are largely unknown. In this study, we investigated the effect of the EVs secreted by ADSCs on the recovery of tendon injuries and its potential mechanism. Materials and Methods We injected ADSCs into the injured tendon, followed by the evaluation of the tissue morphology, tenocyte proliferation, and oxidative stress. Then, the injured tenocytes were treated with EVs secreted by ADSCs, and oxidative stress and proliferation of tenocytes in vitro were detected. After the overexpression and knockdown of miR-19a and its target protein IGFBP3, the oxidative stress and proliferation of tenocytes in vitro were assessed. Finally, the injured tendon was treated with EVs, and the tissue morphology and proliferation of the injured tendon in vivo were examined. Results ADSC-derived EVs were found to inhibit oxidative stress and promote proliferation of tenocytes isolated from an injury model of rats. EVs were shown to carry miR-19a which regulated the expression of IGFBP3 through binding to 3'UTR of IGFBP3 mRNA. In addition, IGFBP3 promotes oxidative stress and inhibits proliferation of tenocytes. Finally, we found that ADSC-derived EVs promoted tendon wound healing in vivo. Conclusions Our data suggest that treatment with ADSC-derived EVs ameliorates tendon injury by inhibiting oxidative stress and promoting proliferation in tenocytes. miR-19a carried by ADSC-derived EVs regulates IGFBP3 expression through binding to its 3'UTR.
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Affiliation(s)
- Haibo Zhao
- Department of Orthopedics, Qingdao University Hospital, Qingdao 266000, China
| | - Hongyuan Jiang
- Department of Orthopedics, Qingdao University Hospital, Qingdao 266000, China
| | - Haoyun Zhang
- Department of Orthopedics, Qingdao University Hospital, Qingdao 266000, China
| | - Zewen Sun
- Department of Orthopedics, Qingdao University Hospital, Qingdao 266000, China
| | - Qian Lin
- Department of Orthopedics, Qingdao University Hospital, Qingdao 266000, China
| | - Tianrui Wang
- Department of Orthopedics, Qingdao University Hospital, Qingdao 266000, China
| | - Tengbo Yu
- Department of Orthopedics, Qingdao University Hospital, Qingdao 266000, China
| | - Yingze Zhang
- Trauma and Emergency Center, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
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Wang Z, Wei Y, Zhu H, Yu L, Zhu J, Han Q, Liu Z, Huang J, Zhu Y, Fan G, Tang Q, Qian J, Chen X, Zhou G. LncRNA NDRG1 aggravates osteosarcoma progression and regulates the PI3K/AKT pathway by sponging miR-96-5p. BMC Cancer 2022; 22:728. [PMID: 35787258 PMCID: PMC9252029 DOI: 10.1186/s12885-022-09833-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/27/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Osteosarcoma (OS) is the most common primary malignant bone tumors in children and adolescents. Large numbers of studies have focused on the long non-coding RNA (lncRNA) that plays essential roles in the progression of osteosarcoma. Nevertheless, the functions and underlying mechanisms of LncRNA NDRG1 in osteosarcoma remain unknown. METHODS Differentially expressed lncRNAs between osteosarcoma and adjacent normal tissues were identified through RNA sequencing. The role of LncRNA NDRG1 in osteosarcoma proliferation and metastasis were investigated through in vitro and in vivo functional experiments. The interaction between LncRNA NDRG1 and miR-96-5p was verified through bioinformatic analysis and luciferase reporter assay. Regulation relationship between LncRNA NDRG1 and miR-96-5p was further evaluated by the rescue experiments. Additionally, the changes in the expression of epithelial-mesenchymal transition (EMT) and the PI3K/AKT pathway were verified by Western blot. RESULTS LncRNA NDRG1 was up-regulated in osteosarcoma cell lines and tissues and the expression of LncRNA NDRG1 was correlated with the overall survival of osteosarcoma patients. Functional experiments exhibited that LncRNA NDRG1 aggravated osteosarcoma proliferation and migration in vitro; meanwhile, animals experiments showed that LncRNA NDRG1 promoted osteosarcoma growth and metastasis in vivo. Mechanistically, LncRNA NDRG1 was found to aggravate osteosarcoma progression and regulate the PI3K/AKT pathway by sponging miR-96-5p. CONCLUSIONS LncRNA NDRG1 aggravates osteosarcoma progression and regulates the PI3K/AKT pathway by sponging miR-96-5p. Therefore, LncRNA NDRG1 could act as a prognostic marker and a therapeutic target for osteosarcoma in the future.
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Affiliation(s)
- Zhen Wang
- Department of Orthopaedics, Jinling Hospital, Nanjing Medical University, Zhongshan Road 305, Nanjing, 210002, China
| | - Yanting Wei
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Tianyuan East Road 818, Nanjing, 211166, China
| | - Hao Zhu
- Department of Orthopaedics, Affiliated Jianhu Hospital of Nantong University, Yancheng, China
| | - Lingfeng Yu
- Department of Orthopaedics, Jinling Hospital, Nanjing University, Nanjing, China
| | - Jie Zhu
- Department of Orthopaedics, Jinling Hospital, Nanjing Medical University, Zhongshan Road 305, Nanjing, 210002, China
| | - Qixiu Han
- Department of Orthopaedics, Jinling Hospital, Nanjing Medical University, Zhongshan Road 305, Nanjing, 210002, China
| | - Ziying Liu
- Department of Orthopaedics, Jinling Hospital, Nanjing University, Nanjing, China
| | - Jianhao Huang
- Department of Orthopaedics, Jinling Hospital, Southern Medical University, Nanjing, China
| | - Yan Zhu
- Department of Orthopaedics, Jinling Hospital, Nanjing Medical University, Zhongshan Road 305, Nanjing, 210002, China
| | - Gentao Fan
- Department of Orthopaedics, Jinling Hospital, Nanjing Medical University, Zhongshan Road 305, Nanjing, 210002, China
| | - Qikai Tang
- Department of Neurosurgery, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, China
| | - Ji Qian
- Department of Digestion Medicine, Affiliated Yixing Hospital of Jiangsu University, Yixing, China
| | - Xi Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Tianyuan East Road 818, Nanjing, 211166, China.
| | - Guangxin Zhou
- Department of Orthopaedics, Jinling Hospital, Nanjing Medical University, Zhongshan Road 305, Nanjing, 210002, China.
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13
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Xiang Y, Liu H, Hu H, Li LW, Zong QB, Wu TW, Li XY, Fang SQ, Liu YW, Zhan Y, Wang H, Lu ZX. LINC00094/miR-19a-3p/CYP19A1 axis affects the sensitivity of ER positive breast cancer cells to Letrozole through EMT pathway. Aging (Albany NY) 2022; 14:4755-4768. [PMID: 35657638 PMCID: PMC9217696 DOI: 10.18632/aging.204110] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 05/17/2022] [Indexed: 11/25/2022]
Abstract
The endocrine therapy resistance of breast cancer is the difficulty and challenge to be urgently solved in the current treatment. In this study, we examined the effects of noncoding RNA LINC00094 and miR-19a-3p on breast cancer in vivo and in vitro by RT-QPCR, Western Blot, luciferase assay, immunofluorescence and drug sensitivity tests. The plasma level of CYP19A1 in patients with breast cancer resistance was lower than that in drug sensitive patients. Compared with normal subjects, miR-19a-3p was highly expressed in plasma of patients with breast cancer. miR-19a-3p is highly expressed in estrogen receptor positive breast cancer cells. The expression of miR-19a-3p promoted the migration and EMT of breast cancer cells and reduced the sensitivity of breast cancer to Letrozole. LINC00094 sponge adsorbed miR-19a-3p. LINC00094 promotes the expression of CYP19A1, the target gene of miR-19a-3p, and inhibits the EMT process of breast cancer, ultimately promoting the sensitivity of ER-positive breast cancer cells to Letrozole. This study found a new mechanism of Letrozole sensitivity in ER positive breast cancer.
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Affiliation(s)
- Yuan Xiang
- Department of Medical Laboratory, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, 430014, Hubei, P.R. China
| | - Hui Liu
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430081, Hubei, P.R. China
| | - Hao Hu
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430081, Hubei, P.R. China
| | - Le-Wei Li
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430081, Hubei, P.R. China
| | - Qi-Bei Zong
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430081, Hubei, P.R. China
| | - Tang-Wei Wu
- Department of Medical Laboratory, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, 430014, Hubei, P.R. China
| | - Xiao-Yi Li
- Department of Medical Laboratory, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, 430014, Hubei, P.R. China
| | - Shi-Qiang Fang
- Department of Medical Laboratory, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, 430014, Hubei, P.R. China
| | - Yi-Wen Liu
- Department of Medical Laboratory, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, 430014, Hubei, P.R. China
| | - Yu Zhan
- Department of Medical Laboratory, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, 430014, Hubei, P.R. China
| | - Hui Wang
- Department of Medical Laboratory, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, 430014, Hubei, P.R. China
| | - Zhong-Xin Lu
- Department of Medical Laboratory, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, 430014, Hubei, P.R. China
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14
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Liu T, Zhao J, Lin C. Sprouty-related proteins with EVH1 domain (SPRED2) prevents high-glucose induced endothelial-mesenchymal transition and endothelial injury by suppressing MAPK activation. Bioengineered 2022; 13:13882-13892. [PMID: 35707829 PMCID: PMC9275976 DOI: 10.1080/21655979.2022.2086351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Diabetic retinopathy (DR) is a common complication of diabetes, and the leading cause of blindness in adults. Sprouty-related proteins with EVH1 domain (SPRED2) play an important role in diabetes and are closely related to the lens and eye morphogenesis. This study attempted to investigate the role and related mechanism of SPRED2 in DR. DR rat model was established by administration streptozocin. Human retinal endothelial cells (HRECs) were treated with high glucose (HG) to mimic DR. The results showed that SPRED2 expression was decreased in the retinal tissues of DR rats and HG-treated HRECs. MTT assay and flow cytometry data showed that SPRED2 overexpression reduced cell viability of HG-treated HRECs. SPRED2 overexpression enhanced Caspase-3 activity and promoted apoptosis of HG-treated HRECs. Furthermore, the expressions of endothelial cell markers CD31 and E-cad were down-regulated, whereas the expressions of mesenchymal cell markers FSP1, SM22, and α-SMA were up-regulated in the HG-treated HRECs. SPRED2 overexpression reversed HG-induced endothelial–mesenchymal transition in HRECs. The expressions of tight junction components claudin 3, occludin, and ZO-1 were increased in HG-treated HRECs following SPRED2 up-regulation. In addition, SPRED2 overexpression downregulated the expression of p-ERK1/2, p-p38, and p-JNK in the HG-treated HRECs. In conclusion, this study demonstrated that SPRED2 overexpression repressed endothelial–mesenchymal transition and endothelial injury in HG-treated HRECs by suppressing MAPK signaling pathway. These findings suggested that SPRED2 may be a novel potential therapeutic target implicated in DR progression.
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Affiliation(s)
- Tian Liu
- Department of Ophthalmology, The First People's Hospital of Jingmen, Jingmen, China
| | - Jing Zhao
- Department of Ophthalmology, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, China
| | - Chengmin Lin
- Department of Ophthalmology, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, China
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15
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Si L, Yang Z, Ding L, Zhang D. Regulatory effects of lncRNAs and miRNAs on the crosstalk between autophagy and EMT in cancer: a new era for cancer treatment. J Cancer Res Clin Oncol 2022; 148:547-564. [PMID: 35083552 DOI: 10.1007/s00432-021-03892-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/15/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE Autophagy and EMT (epithelial-mesenchymal transition) are the two principal biological processes and ideal therapeutic targets during cancer development. Autophagy, a highly conserved process for degrading dysfunctional cellular components, plays a dual role in tumors depending on the tumor stage and tissue types. The EMT process is the transition differentiation from an epithelial cell to a mesenchymal-like cell and acquiring metastatic potential. There is evidence that the crosstalk between autophagy and EMT is complex in cancer. In recent years, more studies have shown that long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are involved in autophagy, EMT, and their crosstalk. Therefore, accurate understanding of the regulatory mechanisms of lncRNAs and miRNAs in autophagy, EMT and their interactions is crucial for the clinical management of cancers. METHODS An extensive literature search was conducted on the Google Scholar and PubMed databases. The keywords used for the search included: autophagy, EMT, crosstalk, lncRNAs, miRNAs, cancers, diagnostic biomarkers, and therapeutic targets. This search provided relevant articles published in peer-reviewed journals until 2021. Data from these various studies were extracted and used in this review. RESULTS The results showed that lncRNAs/miRNAs as tumor inhibitors or tumor inducers could regulate autophagy, EMT, and their interaction by regulating several molecular signaling pathways. The lncRNAs/miRNAs involved in autophagy and EMT processes could have potential uses in cancer diagnosis, prognosis, and therapy. CONCLUSION Such information could help find and develop lncRNAs/miRNAs based new tools for diagnosing, prognosis, and creating anti-cancer therapies.
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Affiliation(s)
- Lihui Si
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Zecheng Yang
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, 130000, China.
| | - Lu Ding
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Duoduo Zhang
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, 130000, Jilin Province, China
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16
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Raimondi L, Gallo A, Cuscino N, De Luca A, Costa V, Carina V, Bellavia D, Bulati M, Alessandro R, Fini M, Conaldi PG, Giavaresi G. Potential Anti-Metastatic Role of the Novel miR-CT3 in Tumor Angiogenesis and Osteosarcoma Invasion. Int J Mol Sci 2022; 23:705. [PMID: 35054891 PMCID: PMC8775549 DOI: 10.3390/ijms23020705] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/30/2021] [Accepted: 01/05/2022] [Indexed: 02/01/2023] Open
Abstract
Osteosarcoma (OS) is the most common primary bone tumor mainly occurring in young adults and derived from primitive bone-forming mesenchyme. OS develops in an intricate tumor microenvironment (TME) where cellular function regulated by microRNAs (miRNAs) may affect communication between OS cells and the surrounding TME. Therefore, miRNAs are considered potential therapeutic targets in cancer and one of the goals of research is to accurately define a specific signature of a miRNAs, which could reflect the phenotype of a particular tumor, such as OS. Through NGS approach, we previously found a specific molecular profile of miRNAs in OS and discovered 8 novel miRNAs. Among these, we deepen our knowledge on the fifth candidate renamed now miR-CT3. MiR-CT3 expression was low in OS cells when compared with human primary osteoblasts and healthy bone. Through TargetScan, VEGF-A was predicted as a potential biological target of miR-CT3 and luciferase assay confirmed it. We showed that enforced expression of miR-CT3 in two OS cell lines, SAOS-2 and MG-63, reduced expression of VEGF-A mRNA and protein, inhibiting tumor angiogenesis. Enforced expression of miR-CT3 also reduced OS cell migration and invasion as confirmed by soft agar colony formation assay. Interestingly, we found that miR-CT3 behaves inducing the activation of p38 MAP kinase pathway and modulating the epithelial-mesenchymal transition (EMT) proteins, in particular reducing Vimentin expression. Overall, our study highlights the novel role of miR-CT3 in regulating tumor angiogenesis and progression in OS cells, linking also to the modulation of EMT proteins.
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Affiliation(s)
- Lavinia Raimondi
- IRCCS Istituto Ortopedico Rizzoli, CS Surgical Sciences and Technologies–SS Omics Science Platform for Personalized Orthopedics, 40136 Bologna, Italy; (A.D.L.); (V.C.); (V.C.); (D.B.); (M.F.); (G.G.)
| | - Alessia Gallo
- IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Department of Research, 90127 Palermo, Italy; (A.G.); (N.C.); (M.B.); (P.G.C.)
| | - Nicola Cuscino
- IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Department of Research, 90127 Palermo, Italy; (A.G.); (N.C.); (M.B.); (P.G.C.)
| | - Angela De Luca
- IRCCS Istituto Ortopedico Rizzoli, CS Surgical Sciences and Technologies–SS Omics Science Platform for Personalized Orthopedics, 40136 Bologna, Italy; (A.D.L.); (V.C.); (V.C.); (D.B.); (M.F.); (G.G.)
| | - Viviana Costa
- IRCCS Istituto Ortopedico Rizzoli, CS Surgical Sciences and Technologies–SS Omics Science Platform for Personalized Orthopedics, 40136 Bologna, Italy; (A.D.L.); (V.C.); (V.C.); (D.B.); (M.F.); (G.G.)
| | - Valeria Carina
- IRCCS Istituto Ortopedico Rizzoli, CS Surgical Sciences and Technologies–SS Omics Science Platform for Personalized Orthopedics, 40136 Bologna, Italy; (A.D.L.); (V.C.); (V.C.); (D.B.); (M.F.); (G.G.)
| | - Daniele Bellavia
- IRCCS Istituto Ortopedico Rizzoli, CS Surgical Sciences and Technologies–SS Omics Science Platform for Personalized Orthopedics, 40136 Bologna, Italy; (A.D.L.); (V.C.); (V.C.); (D.B.); (M.F.); (G.G.)
| | - Matteo Bulati
- IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Department of Research, 90127 Palermo, Italy; (A.G.); (N.C.); (M.B.); (P.G.C.)
| | - Riccardo Alessandro
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (B.N.D), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy;
- Institute for Biomedical Research and Innovation (IRIB), National Research Council (CNR), 90146 Palermo, Italy
| | - Milena Fini
- IRCCS Istituto Ortopedico Rizzoli, CS Surgical Sciences and Technologies–SS Omics Science Platform for Personalized Orthopedics, 40136 Bologna, Italy; (A.D.L.); (V.C.); (V.C.); (D.B.); (M.F.); (G.G.)
| | - Pier Giulio Conaldi
- IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Department of Research, 90127 Palermo, Italy; (A.G.); (N.C.); (M.B.); (P.G.C.)
| | - Gianluca Giavaresi
- IRCCS Istituto Ortopedico Rizzoli, CS Surgical Sciences and Technologies–SS Omics Science Platform for Personalized Orthopedics, 40136 Bologna, Italy; (A.D.L.); (V.C.); (V.C.); (D.B.); (M.F.); (G.G.)
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17
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Sun T, Yin YF, Jin HG, Liu HR, Tian WC. Exosomal microRNA-19b targets FBXW7 to promote colorectal cancer stem cell stemness and induce resistance to radiotherapy. Kaohsiung J Med Sci 2021; 38:108-119. [PMID: 34520626 DOI: 10.1002/kjm2.12449] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 07/22/2021] [Accepted: 08/13/2021] [Indexed: 01/05/2023] Open
Abstract
Colorectal cancer (CRC) continues to be one of the most malignant cancers with a high mortality rate to date. Promoting the radio-responsiveness of CRC is of great importance for local control and prognosis. In this study, we examined the roles of exosomal microRNA-19b (miR-19b) in CRC radioresistance. The regulatory role of miR-19b in CRC stem cells and radiotherapy-resistant cells was determined using miRNA microarray analysis, and its prognostic value was probed using the TCGA database. It was found that miR-19b was overexpressed in CRC tissues, which indicated a poor prognosis. CRC-derived exosomes (EXOs) enhanced the radio-resistance and stemness properties of CRC cells via delivery of miR-19b in vitro and in vivo. FBXW7 was identified as a putative target of miR-19b. On the contrary, reintroduction of FBXW7 reversed the effects of miR-19b on radioresistance and stemness properties. Furthermore, the Wnt/β-catenin pathway activity was elevated in CRC cells upon EXOs treatment, decreased after miR-19b downregulation, and increased again after FBXW7 downregulation. These results suggest that miR-19b inhibition could enhance the efficacy of radiotherapy while reducing the stemness properties, thus presenting a promising strategy for sensitizing CRC cells to radiotherapy.
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Affiliation(s)
- Tao Sun
- Department of Radiotherapy, Jilin Cancer Hospital, Changchun, China
| | - Yong-Fang Yin
- Department of Radiology, Jilin Province People's Hospital, Changchun, China
| | - Hai-Guo Jin
- Department of Radiotherapy, Jilin Cancer Hospital, Changchun, China
| | - Hai-Rui Liu
- Department of Abdominal Surgery, Jilin Cancer Hospital, Changchun, China
| | - Wei-Cheng Tian
- Department of Radiotherapy, Jilin Cancer Hospital, Changchun, China
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18
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Liu P, Zhuang Y, Zhang B, Huang H, Wang P, Wang H, Cong Y, Qu S, Zhang K, Wei X. miR-140-3p regulates the osteogenic differentiation ability of bone marrow mesenchymal stem cells by targeting spred2-mediated autophagy. Mol Cell Biochem 2021; 476:4277-4285. [PMID: 34406574 DOI: 10.1007/s11010-021-04148-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 04/01/2021] [Indexed: 10/20/2022]
Abstract
Understanding the function and regulatory mechanism of miR-140-3p on the osteogenic differentiation of bone mesenchymal stem cells (BMSCs). Alizarin Red staining, Alkaline phosphatase (ALP) staining, and ALP activity were used to detect the ability osteogenic differentiation. miR-140-3p or Spred2 overexpression into BMSCs using lentiviral vectors and the result were analyzed by Reverse transcription quantitative polymerase chain reaction (RT-qPCR). The relation between miR-140-3p and Spred2 was examined by luciferase reporter assay. CCK8 assay was used to detect the proliferation of BMSCs. RT-qPCR and Western blot analysis were both used to detect altered gene and protein in osteogenic differentiation of BMSCs, respectively. The BMSCs which were induced for 21 days were analyzed by Alizarin Red staining, (ALP) staining and ALP activity. RT-qPCR analysis showed that overexpressed miR-140-3p promotes osteogenic differentiation. Western blots results indicated that the overexpression of Spred2 suppressed miR-140-3p. Luciferase reporter assay indicated that Spred2 can integrate with miR-140-3p directly. Meanwhile, the protein level of ALP, OCN, and Runx2, the markers of chondrogenesis, was increased when miR-140-3p increased or Spred2 overexpressed in the osteoinductive medium applied to the BMSCs. Our study demonstrated the association between miR-140-3p and Spred2 in osteogenic differentiation of BMSCs for the first time. Furthermore, our detections also revealed that Spred2-induced autophagic signaling accelerates the progress of osteogenic differentiation ability of BMSCs.
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Affiliation(s)
- Ping Liu
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Yan Zhuang
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Binfei Zhang
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Hai Huang
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Pengfei Wang
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Hu Wang
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Yuxuan Cong
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Shuangwei Qu
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Kun Zhang
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China
| | - Xing Wei
- Department of Orthopedic Trauma, Honghui Hospital, Xi'an Jiaotong University, 555 East Youyi Road, Nanshaomen, Xi'an, 710054, Shanxi, China.
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19
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Chong ZX, Yeap SK, Ho WY. Unraveling the roles of miRNAs in regulating epithelial-to-mesenchymal transition (EMT) in osteosarcoma. Pharmacol Res 2021; 172:105818. [PMID: 34400316 DOI: 10.1016/j.phrs.2021.105818] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/01/2021] [Accepted: 08/12/2021] [Indexed: 12/16/2022]
Abstract
Osteosarcoma is one of the most prevalent primary bone tumors with a high metastatic and recurrence rate with poor prognosis. MiRNAs are short and non-coding RNAs that could regulate various cellular activities and one of them is the epithelial-to-mesenchymal transition (EMT). Osteosarcoma cells that have undergone EMT would lose their cellular polarity and acquire invasive and metastatic characteristics. Our literature search showed that many pre-clinical and clinical studies have reported the roles of miRNAs in modulating the EMT process in osteosarcoma and compared to other cancers like breast cancer, there is a lack of review article which effectively summarizes the various roles of EMT-regulating miRNAs in osteosarcoma. This review, therefore, was aimed to discuss and summarize the EMT-promoting and EMT-suppressing roles of different miRNAs in osteosarcoma. The review would begin with the discussion on the concepts and principles of EMT, followed by the exploration of the diverse roles of EMT-regulating miRNAs in osteosarcoma. Subsequently, the potential use of miRNAs as prognostic biomarkers in osteosarcoma to predict the likelihood of metastases and as therapeutic agents would be discussed.
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Affiliation(s)
- Zhi Xiong Chong
- Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia.
| | - Swee Keong Yeap
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, 43900 Sepang, Selangor, Malaysia.
| | - Wan Yong Ho
- Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia.
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