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Li X, Fu Q, Zhong M, Long Y, Zhao F, Huang Y, Zhang Z, Wen M, Chen K, Chen R, Ma X. Quantitative proteomics of the miR-301a/SOCS3/STAT3 axis reveals underlying autism and anxiety-like behavior. Mol Ther Nucleic Acids 2024; 35:102136. [PMID: 38439911 PMCID: PMC10909786 DOI: 10.1016/j.omtn.2024.102136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/30/2024] [Indexed: 03/06/2024]
Abstract
Autism is a widespread neurodevelopmental disorder. Although the research on autism spectrum disorders has been increasing in the past decade, there is still no specific answer to its mechanism of action and treatment. As a pro-inflammatory microRNA, miR-301a is abnormally expressed in various psychiatric diseases including autism. Here, we show that miR-301a deletion and inhibition exhibited two distinct abnormal behavioral phenotypes in mice. We observed that miR-301a deletion in mice impaired learning/memory, and enhanced anxiety. On the contrary, miR-301a inhibition effectively reduced the maternal immune activation (MIA)-induced autism-like behaviors in mice. We further demonstrated that miR-301a bound to the 3'UTR region of the SOCS3, and that inhibition of miR-301a led to the upregulation of SOCS3 in hippocampus. The last result in the reduction of the inflammatory response by inhibiting phosphorylation of AKT and STAT3, and the expression level of IL-17A in poly(I:C)-induced autism-like features in mice. The obtained data revealed the miR-301a as a critical participant in partial behavior phenotypes, which may exhibit a divergent role between gene knockout and knockdown. Our findings ascertain that miR-301a negatively regulates SOCS3 in MIA-induced autism in mice and could present a new therapeutic target for ameliorating the behavioral abnormalities of autism.
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Affiliation(s)
- Xun Li
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - Qi Fu
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Mingtian Zhong
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Yihao Long
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Fengyun Zhao
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Yanni Huang
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Zizhu Zhang
- Guangdong Province Key Laboratory of Psychiatric Disorders, Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Min Wen
- Guangdong Province Key Laboratory of Psychiatric Disorders, Department of Neurobiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Kaizhao Chen
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
| | - Rongqing Chen
- Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Xiaodong Ma
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou 510631, China
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2
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Hasan MN, Rahman MM, Husna AA, Arif M, Iwanaga T, Tsukiyama-Kohara K, Jasineviciute I, Kato D, Nakagawa T, Miura N. Elevated expression of miR-301a and its functional roles in canine oral melanoma. Vet Comp Oncol 2024; 22:78-88. [PMID: 38148644 DOI: 10.1111/vco.12954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/21/2023] [Accepted: 12/07/2023] [Indexed: 12/28/2023]
Abstract
miR-301a is one of numerous dysregulated microRNAs (miRNAs) in canine oral melanoma (COM), one of which is miR-301a (upregulated). Its biological role has been described in various human cancer types, including malignant melanoma, but not in COM. Accordingly, in this study, we investigated miR-301a expression in COM in greater detail to ascertain whether it could serve as a diagnostic biomarker, elucidate its functional roles in this cancer, and predict the possible pathways by which it exerts its effects. Relative expression of miR-301a was investigated in clinical oral tissue and plasma samples and COM cell (KMeC and LMeC) lines using qRT-PCR. Knockdown of miR-301a was also validated for KMeC and LMeC cells using qRT-PCR. We performed CCK-8 assays to assess cell proliferation, monolayer wound-healing, and transwell migration assays to assess cell migration, a colony-formation assay to assess clonogenicity, a TUNEL assay and flow cytometry to assess apoptosis-related effects, and gene enrichment analyses to predict possible related pathways. miR-301a was markedly upregulated in COM oral tissue and plasma clinically, suggesting its potential as a diagnostic biomarker for COM diagnosis. In vitro assays demonstrated that miR-301 significantly inhibited apoptosis in COM cells while promoting cell migration, proliferation, and clonogenicity. We also predicted that miR-301 exerts cancer-promoting effects through the Wnt signalling pathway for COM. Our findings suggest that miR-301a is a COM oncomiR that regulates several oncogenic phenotypes with the potential to be a diagnostic biomarker.
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Affiliation(s)
- Md Nazmul Hasan
- Joint Graduate School of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Md Mahfuzur Rahman
- Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Al Asmaul Husna
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Mohammad Arif
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Tomoko Iwanaga
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Kyoko Tsukiyama-Kohara
- Transboundary Animal Diseases Centre, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Indre Jasineviciute
- Department of Anatomy and Physiology, Veterinary Faculty, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Daiki Kato
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Naoki Miura
- Joint Graduate School of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
- Veterinary Teaching Hospital, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
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Granda-Díaz R, Manterola L, Hermida-Prado F, Rodríguez R, Santos L, García-de-la-Fuente V, Fernández MT, Corte-Torres MD, Rodrigo JP, Álvarez-Teijeiro S, Lawrie CH, Garcia-Pedrero JM. Targeting oncogenic functions of miR-301a in head and neck squamous cell carcinoma by PI3K/PTEN and MEK/ERK pathways. Biomed Pharmacother 2023; 161:114512. [PMID: 36931033 DOI: 10.1016/j.biopha.2023.114512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
Treatment of head and neck squamous cell carcinomas (HNSCC), the sixth most frequent cancer worldwide, remains challenging. miRNA dysregulation is closely linked to tumorigenesis and tumor progression, thus emerging as suitable targets for cancer treatment. Transcriptomic analysis of TCGA HNSCC dataset revealed that miR-301a expression levels significantly increased in primary tumors, as compared to patient-matched normal tissue. This prompted us to investigate its pathobiological role and potential as new therapeutic target using different preclinical HNSCC models. miR-301a overexpression in HNSCC-derived cell lines led to enhanced proliferation and invasion, whereas miR-301 inhibition reduced these effects. In vivo validation was performed using an orthotopic mouse model. Results concordantly showed that the mitotic counts, the percentage of infiltration depth and Ki67 proliferative index were significantly augmented in the subgroup of mice harboring miR-301a-overexpressing tumors. Further mechanistic characterization revealed PI3K/PTEN/AKT and MEK/ERK pathways as central signaling nodes responsible for mediating the oncogenic activity of miR-301a observed in HNSCC cells. Notably, pharmacological disruption of PI3K and ERK signals with BYL-719 and PD98059, respectively, was effective to completely revert/abolish miR-301a-promoted tumor cell growth and invasion. Altogether, these findings demonstrate that miR-301a dysregulation plays an oncogenic role in HNSCC, thus emerging as a candidate therapeutic target for this disease. Importantly, available PI3K and ERK inhibitors emerge as promising anti-tumor agents to effectively target miR-301a-mediated signal circuit hampering growth-promoting and pro-invasive functions.
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Affiliation(s)
- Rocío Granda-Díaz
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain; Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), University of Oviedo, Oviedo, Spain; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain
| | - Lorea Manterola
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián, Spain
| | - Francisco Hermida-Prado
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain; Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), University of Oviedo, Oviedo, Spain; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain
| | - René Rodríguez
- CIBERONC, Instituto de Salud Carlos III, Madrid, Spain; Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain; Sarcomas and Experimental Therapies, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), University of Oviedo, Oviedo, Spain
| | - Laura Santos
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain; Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), University of Oviedo, Oviedo, Spain
| | - Vanessa García-de-la-Fuente
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain; Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), University of Oviedo, Oviedo, Spain
| | - María Teresa Fernández
- Histopathology Unit, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain
| | - M Daniela Corte-Torres
- Biobank of Principado de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Juan P Rodrigo
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain; Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), University of Oviedo, Oviedo, Spain; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain
| | - Saúl Álvarez-Teijeiro
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain; Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), University of Oviedo, Oviedo, Spain; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain.
| | - Charles H Lawrie
- Molecular Oncology group, Biodonostia Research Institute, San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, Bilbao, Spain; Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom; Sino-Swiss Institute of Advanced Technology (SSIAT), Shanghai University, Shanghai, China.
| | - Juana M Garcia-Pedrero
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), University of Oviedo, Oviedo, Spain; Department of Otolaryngology, Hospital Universitario Central de Asturias and Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), University of Oviedo, Oviedo, Spain; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain.
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4
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Xu J, Fu L, Deng J, Zhang J, Zou Y, Liao L, Ma X, Li Z, Xu Y, Xu Y, Xu S, Liu J, Wang X, Ma X, Guo J. miR-301a Deficiency Attenuates the Macrophage Migration and Phagocytosis through YY1/CXCR4 Pathway. Cells 2022; 11. [PMID: 36552718 DOI: 10.3390/cells11243952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
(1) Background: the miR-301a is well known involving the proliferation and migration of tumor cells. However, the role of miR-301a in the migration and phagocytosis of macrophages is still unclear. (2) Methods: sciatic nerve injury, liver injury models, as well as primary macrophage cultures were prepared from the miR-301a knockout (KO) and wild type (WT) mice to assess the macrophage's migration and phagocytosis capabilities. Targetscan database analysis, Western blotting, siRNA transfection, and CXCR4 inhibition or activation were performed to reveal miR301a's potential mechanism. (3) Results: the macrophage's migration and phagocytosis were significantly attenuated by the miR-301a KO both in vivo and in vitro. MiR-301a can target Yin-Yang 1 (YY1), and miR-301a KO resulted in YY1 up-regulation and CXCR4 (YY1's down-stream molecule) down-regulation. siYY1 increased the expression of CXCR4 and enhanced migration and phagocytosis in KO macrophages. Meanwhile, a CXCR4 inhibitor or agonist could attenuate or accelerate, respectively, the macrophage migration and phagocytosis. (4) Conclusions: current findings indicated that miR-301a plays important roles in a macrophage's capabilities of migration and phagocytosis through the YY1/CXCR4 pathway. Hence, miR-301a might be a promising therapeutic candidate for inflammatory diseases by adjusting macrophage bio-functions.
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5
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Li F, Wang M, Li X, Long Y, Chen K, Wang X, Zhong M, Cheng W, Tian X, Wang P, Ji M, Ma X. Inflammatory- miR-301a circuitry drives mTOR and Stat3-dependent PSC activation in chronic pancreatitis and PanIN. Mol Ther Nucleic Acids 2022; 27:970-982. [PMID: 35211358 PMCID: PMC8829454 DOI: 10.1016/j.omtn.2022.01.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 01/17/2022] [Indexed: 02/09/2023]
Abstract
Activated pancreatic stellate cells (PSCs) are the main cells involved in chronic pancreatitis and pancreatic intraepithelial neoplasia lesion (PanIN). Fine-tuning the precise molecular targets in PSC activation might help the development of PSC-specific therapeutic strategies to tackle progression of pancreatic cancer-related fibrosis. miR-301a is a pro-inflammatory microRNA known to be activated by multiple inflammatory factors in the tumor stroma. Here, we show that miR-301a is highly expressed in activated PSCs in mice, sustained tissue fibrosis in caerulein-induced chronic pancreatitis, and accelerated PanIN formation. Genetic ablation of miR-301a reduced pancreatic fibrosis in mouse models with chronic pancreatitis and PanIN. Cell proliferation and activation of PSCs was inhibited by downregulation of miR-301a via two of its targets, Tsc1 and Gadd45g. Moreover, aberrant PSC expression of miR-301a and Gadd45g restricted the interplay between PSCs and pancreatic cancer cells in tumorigenesis. Our findings suggest that miR-301a activates two major cell proliferation pathways, Tsc1/mTOR and Gadd45g/Stat3, in vivo, to facilitate development of inflammatory-induced PanIN and maintenance of PSC activation and desmoplasia in pancreatic cancer.
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Affiliation(s)
- Fugui Li
- Cancer Research Institute of Zhongshan City, Zhongshan City People's Hospital, 528403 Zhongshan, China
| | - Miaomiao Wang
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, Institute for Brain Research and Rehabilitation, South China Normal University, 510631 Guangzhou, China
| | - Xun Li
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, Institute for Brain Research and Rehabilitation, South China Normal University, 510631 Guangzhou, China
| | - Yihao Long
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, Institute for Brain Research and Rehabilitation, South China Normal University, 510631 Guangzhou, China
| | - Kaizhao Chen
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, Institute for Brain Research and Rehabilitation, South China Normal University, 510631 Guangzhou, China
| | - Xinjie Wang
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, Institute for Brain Research and Rehabilitation, South China Normal University, 510631 Guangzhou, China
| | - Mingtian Zhong
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, Institute for Brain Research and Rehabilitation, South China Normal University, 510631 Guangzhou, China
| | - Weimin Cheng
- Cancer Research Institute of Zhongshan City, Zhongshan City People's Hospital, 528403 Zhongshan, China
| | - Xuemei Tian
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, Institute for Brain Research and Rehabilitation, South China Normal University, 510631 Guangzhou, China
| | - Ping Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120 Guangdong Province, China
| | - Mingfang Ji
- Cancer Research Institute of Zhongshan City, Zhongshan City People's Hospital, 528403 Zhongshan, China
| | - Xiaodong Ma
- Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, Institute for Brain Research and Rehabilitation, South China Normal University, 510631 Guangzhou, China
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6
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Zhu YH, Zhang XR, Zhang Q, Chai J. Icaritin-elevated circ_0000190 suppresses the malignant progression of multiple myeloma by targeting miR-301a. Kaohsiung J Med Sci 2022; 38:447-456. [PMID: 35174633 DOI: 10.1002/kjm2.12504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/29/2021] [Accepted: 12/08/2021] [Indexed: 12/17/2022] Open
Abstract
Icaritin has potential anticancer effects on various cancers, including multiple myeloma (MM). Recent studies claim that Icaritin can regulate the expression of noncoding RNAs (ncRNAs) in cancer development. This study aimed to investigate the role of circular RNA_0000190 (circ_0000190) and functional mechanism in Icaritin-treated MM. The expression of circ_0000190 and miR-301a was detected by quantitative real-time polymerase chain reaction. Cell cycle, apoptosis, migration, and invasion were investigated using flow cytometry assay, and transwell assay, respectively. The expression of BAX, BCL2, MMP2, and CCND1 was detected by western blot. The predicted target relationship between circ_0000190 and miR-301a was validated by dual-luciferase reporter assay and RNA immunoprecipitation assay. The activation of JAK1/STAT3 pathway was examined using western blot. Circ_0000190 was strikingly downregulated in MM specimens and cell lines, and Icaritin promoted the expression of circ_0000190. In function, circ_0000190 overexpression promoted MM cell cycle arrest and apoptosis but restrained the ability of migration and invasion. Icaritin blocked the development of MM by increasing circ_0000190 expression. MiR-301a was identified as a target of circ_0000190, and miR-301a reintroduction largely abolished the effects of circ_0000190 overexpression. The activation of JAK1/STAT3 pathway was promoted by miR-301a restoration. Icaritin played anticancer effects in MM partly by enhancing the expression of circ_0000190 and regulating the circ_0000190/miR-301a pathway. This study enhanced the understanding of the mechanism of Icaritin associated with circRNAs in MM.
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Affiliation(s)
- Yu-Hui Zhu
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun, China
| | - Xin-Ru Zhang
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun, China
| | - Qi Zhang
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China
| | - Jin Chai
- Department of Pharmacy, The Second Hospital of Jilin University, Changchun, China
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Zhao B, Pan Y, Qiao L, Liu J, Yang K, Liang Y, Liu W. miR-301a inhibits adipogenic differentiation of adipose-derived stromal vascular fractions by targeting HOXC8 in sheep. Anim Sci J 2021; 92:e13661. [PMID: 34856652 DOI: 10.1111/asj.13661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/09/2021] [Accepted: 10/21/2021] [Indexed: 01/13/2023]
Abstract
MicroRNAs (miRNAs) regulate adipogenic differentiation in stromal vascular fractions (SVFs) through post-transcriptional regulation of transcription factors and other functional genes. miR-301 and the homeobox C8 (HOXC8) gene are involved in lipid homeostasis; however, their roles in the adipogenic differentiation of ovine SVFs are unknown. Here, we explored the effects of miR-301 and HOXC8 on adipogenic differentiation in ovine SVFs and the regulatory role of miR-301a in HOXC8 expression. Additionally, we evaluated the effect of miR-301a and HOXC8 on the mRNA abundance of adipogenic markers and the ability of ovine SVFs to accumulate lipids. We found that miR-301a regulates adipogenic differentiation in ovine SVFs by directly targeting the 3'-untranslated region of HOXC8, resulting in significant downregulation of the HOXC8 mRNA and protein. Moreover, miR-301a overexpression suppressed adipogenic differentiation in ovine SVFs and significantly inhibited the expression of adipogenesis-related genes-including adiponectin, C/EBPα, PPARγ, and FABP4. Conversely, HOXC8 overexpression in ovine SVFs increased the accumulation of lipid droplets and remarkably promoted the expression of adipogenic markers. Taken together, our results indicate that miR-301a attenuates the adipogenic differentiation of ovine SVFs by targeting HOXC8. These findings improve our understanding of the mechanism of lipid accumulation and metabolism in sheep.
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Affiliation(s)
- Bishi Zhao
- College of Animal Science, Shanxi Agricultural University, Taigu, China
| | - Yangyang Pan
- College of Animal Science, Shanxi Agricultural University, Taigu, China
| | - Liying Qiao
- College of Animal Science, Shanxi Agricultural University, Taigu, China
| | - Jianhua Liu
- College of Animal Science, Shanxi Agricultural University, Taigu, China
| | - Kaijie Yang
- College of Animal Science, Shanxi Agricultural University, Taigu, China
| | - Yu Liang
- College of Animal Science, Shanxi Agricultural University, Taigu, China
| | - Wenzhong Liu
- College of Animal Science, Shanxi Agricultural University, Taigu, China
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Deng S, Zhang T, Chen X, Shi J, Meng M, Yue G, Xing S, Tian X, Yang X, Chen F, Li N. Is there a correlation between miR-301a expression and neoadjuvant chemotherapy efficacy in breast cancer tissue? Biochem Biophys Rep 2021; 26:100947. [PMID: 33614999 PMCID: PMC7878978 DOI: 10.1016/j.bbrep.2021.100947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/12/2022] Open
Abstract
Neoadjuvant chemotherapy (NAC) is the standard therapeutic regimen for locally advanced breast cancer. However, clinical physical examination and imaging results fail to accurately assess the treatment response, and postoperative pathological examination has a time lag in response to therapeutic effect which is not conducive to the timely adjustment of treatment strategies. A previous study has shown that miR-301a was associated with invasion and metastasis in breast cancer, and was found to be involved in endocrine therapy resistance; however, evidence regarding the correlation between miR-301a expression and NAC efficacy remains scarce. In this study, 101 patients with locally advanced breast cancer were included. All patients received anthracycline based chemotherapy. The expression level of miR-301a in pretreatment core needle biopsy tissues was determined by real-time polymerase chain reaction analysis. Relevant clinicopathological data were collected, and the correlation between miR-301a expression and NAC efficacy was assessed. Based on our data, miR-301a cannot be used to identify whether breast cancer benefits from NAC, and no correlation was observed between miR-301a expression and clinicopathological characteristics. In conclusion, miR-301a may not be a potential prognostic biomarker of NAC efficacy in breast cancer. Neoadjuvant chemotherapy is the first-line of treatment for locally advanced breast cancer, early monitoring of efficacy is necessary. MiRNA-301 has been previously employed as a poor prognostic biomarker for breast cancer. MiRNA-301 has been previously employed as a poor prognostic biomarker for breast cancer, whether it can be employed as a biomarker of neoadjuvant chemotherapy efficacy in breast cancer is unknown.
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Affiliation(s)
- Shanshan Deng
- Thoracic Oncology Department, Zunyi Medical University, NO.2 Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
| | - Tingyou Zhang
- Thoracic Oncology Department, Zunyi Medical University, NO.2 Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
| | - Xi Chen
- Thoracic Oncology Department, Zunyi Medical University, NO.2 Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
| | - Junhua Shi
- Radiology Department, Zunyi Medical University, Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
| | - Mi Meng
- Thoracic Oncology Department, Zunyi Medical University, NO.2 Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
| | - Guojun Yue
- Thoracic Oncology Department, Zunyi Medical University, NO.2 Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
| | - Shiyun Xing
- Thoracic Oncology Department, Zunyi Medical University, NO.2 Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
| | - Xin Tian
- Head and Neck Oncology Department, Zunyi Medical University, NO.2 Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
| | - Xiaorong Yang
- Department of Pathology, Zunyi Medical University, Affiliated Hospital, Zunyi, Guizhou, 563003, PR China
| | - Fang Chen
- Cancer Laboratory, Zunyi Medical University, Affiliated Hospital, Zunyi, Guizhou, 563003, PR China
| | - Ning Li
- Thoracic Oncology Department, Zunyi Medical University, NO.2 Affiliated Hospital, Zunyi, Guizhou, 563006, PR China
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Dou J, Tu D, Zhao H, Zhang X. LncRNA PCAT18/ miR-301a/TP53INP1 axis is involved in gastric cancer cell viability, migration and invasion. J Biochem 2020; 168:547-555. [PMID: 32687182 DOI: 10.1093/jb/mvaa079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/13/2020] [Indexed: 01/12/2023] Open
Abstract
MiR-301a is as an oncogene involved in the regulation of gastric cancer (GC) progression, but the underlying mechanism is unclear. This study was to explore the lncRNA PCAT18/miR-301a/TP53INP1 axis in regulating the GC cell proliferation and metastasis. In the present study, GC tissues and cell lines were collected for the detection of PCAT18 expression. Herein, we found that PCAT18 is significantly decreases in human GC tissues and five GC cell lines. Overexpression of PCAT18 inhibits cell viability, invasion and migration of GC cells and tumour growth of GC xenograft tumours. PCAT18 negatively regulates the expression level of miR-301a. The interaction between PCAT18 and miR-301a is confirmed by RIP and RNA pull down. MiR-301a mimic increases cell viability and promotes cell migration and invasion and reverses the inhibitory action of PCAT18. TP53INP1 expression is negatively regulated by miR-301a and TP53INP1/miR-301a is involved in GC viability, migration and invasion. The promoting of PCAT18 on TP53INP1 expression is abolished by miR-301a overexpression. In conclusion, lncRNA PCAT18 acts as a tumour suppressor for GC and lncRNA PCAT18, miR-301a and TP53INP1 comprise a signal axis in regulating GC cell proliferation, migration and invasion.
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Affiliation(s)
- Jin Dou
- Department of General Surgery, Huai'an Second People's Hospital and the Affiliated Huai'an Hospital of Xuzhou Medical University, 62 Huaihai South Road, Huai'an, Jiangsu 223001, PR China
| | - Daoyuan Tu
- Department of General Surgery, Huai'an Second People's Hospital and the Affiliated Huai'an Hospital of Xuzhou Medical University, 62 Huaihai South Road, Huai'an, Jiangsu 223001, PR China
| | - Haijian Zhao
- Department of General Surgery, Huai'an Second People's Hospital and the Affiliated Huai'an Hospital of Xuzhou Medical University, 62 Huaihai South Road, Huai'an, Jiangsu 223001, PR China
| | - Xiaoyu Zhang
- Department of General Surgery, Huai'an Second People's Hospital and the Affiliated Huai'an Hospital of Xuzhou Medical University, 62 Huaihai South Road, Huai'an, Jiangsu 223001, PR China
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10
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Hsu LW, Huang KT, Nakano T, Chiu KW, Chen KD, Goto S, Chen CL. MicroRNA-301a inhibition enhances the immunomodulatory functions of adipose-derived mesenchymal stem cells by induction of macrophage M2 polarization. Int J Immunopathol Pharmacol 2020; 34:2058738420966092. [PMID: 33121303 PMCID: PMC7607751 DOI: 10.1177/2058738420966092] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of short non-coding RNAs that play a significant role in biological processes in various cell types, including mesenchymal stem cells (MSCs). However, how miRNAs regulate the immunomodulatory functions of adipose-derived MSCs (AD-MSCs) remains unknown. Here, we showed that modulation of miR-301a in AD-MSCs altered macrophage polarization. Bone marrow (BM)-derived macrophages were stimulated with LPS (1 μg/ml) and co-cultured with miRNA transfected AD-MSCs for 24 h. The expression of M1 and M2 markers in macrophages was analyzed. Inhibition of miR-301a induced M2 macrophage with arginase-1, CD163, CD206, and IL-10 upregulation. Additionally, toll-like receptor (TLR)-4 mRNA expression in macrophages was downregulated in co-cultures with AD-MSCs transfected with a miR-301a inhibitor. Nitric oxide (NO) in the supernatant of AD-MSC/macrophage co-culture was also suppressed by inhibition of miR-301a in AD-MSCs. We further found that suppression of miR-301a in AD-MSCs increased prostaglandin E2 (PGE2) concentration in the conditioned medium of the co-culture. Taken together, the results of our study indicate that miR-301a can modulate the immunoregulatory functions of AD-MSCs that favor the applicability as a potential immunotherapeutic agent.
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Affiliation(s)
- Li-Wen Hsu
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Kuang-Tzu Huang
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Toshiaki Nakano
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung.,Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung
| | - King-Wah Chiu
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Kuang-Den Chen
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
| | - Shigeru Goto
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung.,Faculty of Nursing, Department of Nursing, Josai International University, Togane, Chiba, Japan
| | - Chao-Long Chen
- Liver Transplantation Center, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung
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11
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Zhen L, Zhao Q, Lü J, Deng S, Xu Z, Zhang L, Zhang Y, Fan H, Chen X, Liu Z, Gu Y, Yu Z. miR-301a-PTEN-AKT Signaling Induces Cardiomyocyte Proliferation and Promotes Cardiac Repair Post-MI. Mol Ther Nucleic Acids 2020; 22:251-262. [PMID: 33230431 PMCID: PMC7515978 DOI: 10.1016/j.omtn.2020.08.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 08/25/2020] [Indexed: 12/31/2022]
Abstract
Adult hearts are hard to recover after cardiac injury due to the limited proliferative ability of cardiomyocytes. Emerging evidence indicates the induction of cell cycle reentry of cardiomyocytes by special treatment or stimulation, which offers adult heart regenerative potential. Herein, a microRNA (miRNA) screening in cardiomyocytes identified miR-301a enriched specially in the neonatal cardiomyocytes from rats and mice. Overexpression of miR-301a in primary neonatal cardiomyocytes and H9C2 cells induced G1/S transition of the cell cycle, promoted cellular proliferation, and protected cardiomyocytes against hypoxia-induced apoptosis. Adeno-associated virus (AAV)9-mediated cardiac delivery of miR-301a to the mice model with myocardial infarction (MI) dramatically promoted cardiac repair post-MI in vivo. Phosphatase and tensin homolog (PTEN)/phosphatidylinositol 3-kinase (PI3K)/AKT signaling pathway was confirmed to mediate miR-301a-induced cell proliferation in cardiomyocytes. Loss of function of PTEN mimicked the miR-301a-induced phenotype, while gain of function of PTEN attenuated the miR-301a-induced cell proliferation in cardiomyocytes. Application of RG7440, a small molecule inhibitor of AKT, blocked the function of miR-301a in cardiomyocytes. The current study revealed a miRNA signaling in inducing the cell cycle reentry of cardiomyocytes in the injured heart, and it demonstrated the miR-301a/PTEN/AKT signaling as a potential therapeutic target to reconstitute lost cardiomyocytes in mammals.
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Affiliation(s)
- Lixiao Zhen
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Qian Zhao
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Jinhui Lü
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Shengqiong Deng
- Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, China
| | - Zhen Xu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Lin Zhang
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Yuzhen Zhang
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Huimin Fan
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Xiongwen Chen
- Cardiovascular Research Center, Temple University School of Medicine, Philadelphia, PA 19122, USA
| | - Zhongmin Liu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Yuying Gu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
| | - Zuoren Yu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai 200120, China
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12
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Li J, Jiang D, Zhang Q, Peng S, Liao G, Yang X, Tang J, Xiong H, Pang J. MiR-301a Promotes Cell Proliferation by Repressing PTEN in Renal Cell Carcinoma. Cancer Manag Res 2020; 12:4309-4320. [PMID: 32606927 PMCID: PMC7294045 DOI: 10.2147/cmar.s253533] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 05/30/2020] [Indexed: 12/15/2022] Open
Abstract
Objective Renal cell carcinoma (RCC) displays an increasing incidence and mortality rate worldwide in recent years. More and more evidence demonstrated microRNAs function as positive or negative regulatory factors in many cancers, while the role of miR-301a in RCC is still unclear. Material and Methods The expression and clinical significance of miR-301a were assessed via bioinformatic software on open microarray datasets of the Cancer Genome Atlas (TCGA) and then confirmed by quantitative real-time PCR (qRT-PCR) in RCC cell lines. Loss of function assays were performed in RCC cell lines both in vitro and in vivo. Cell Counting Kit-8 (CCK-8), flow cytometry, luciferase reporter assays, Western blotting, and immunohistochemistry were employed to explore the mechanisms of the effect of miR-301a on RCC. Results By analyzing RCC clinical specimens and cell lines, we found a uniform increased miR-301a in expression in comparison with normal renal tissue or normal human proximal tubule epithelial cell line (HK-2). In addition, miR-301a upregulation correlated advanced stage and poor prognosis of clear cell RCC (ccRCC). Anti-miR-301a could inhibit growth and cell cycle G1/S transition in RCC cell lines. Moreover, we found that PTEN was identified as a direct target of miR-301a that might partially interrupt miR-301a-induced G1/S transition. Importantly, nude-mouse models revealed that knockdown of miR-301a delayed tumor growth. Conclusion These results indicate that miR-301a functions as a tumor-promoting miRNA through regulating PTEN expression, representing a novel therapeutic target for RCC.
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Affiliation(s)
- Jun Li
- Department of Urology, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Donggen Jiang
- Department of Urology, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Qian Zhang
- Department of Rehabilitation Medicine, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Shubin Peng
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China
| | - Guolong Liao
- Department of Urology, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Xiangwei Yang
- Department of Urology, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Jiani Tang
- Department of Urology, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Haiyun Xiong
- Department of Urology, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, People's Republic of China
| | - Jun Pang
- Department of Urology, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, People's Republic of China
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13
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Wang J, Li X, Zhong M, Wang Y, Zou L, Wang M, Gong X, Wang X, Zhou C, Ma X, Liu M. miR-301a Suppression within Fibroblasts Limits the Progression of Fibrosis through the TSC1/mTOR Pathway. Mol Ther Nucleic Acids 2020; 21:217-228. [PMID: 32585629 PMCID: PMC7321782 DOI: 10.1016/j.omtn.2020.05.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/18/2020] [Accepted: 05/22/2020] [Indexed: 01/06/2023]
Abstract
Pulmonary fibrosis has been characterized by abnormal proliferation of fibroblasts and massive deposition of the extracellular matrix, which results from a complex interplay of chronic injury and inflammatory responses. MicroRNA-301a (miR-301a) is activated by multiple inflammatory stimulators, contributing to multiple tumorigenesis and autoimmune diseases. This study showed that miR-301a was overexpressed in a bleomycin-induced murine model of pulmonary fibrosis and patients with idiopathic pulmonary fibrosis (IPF). In addition, miR-301a was activated by transforming growth factor β (TGF-β) and interleukin 6 (IL-6) in normal and IPF fibroblasts, which was markedly reversed by the signal transducer and activator of transcription 3 (STAT3) inhibitor. The genetic ablation of miR-301a in mice reduced bleomycin-induced lung fibrosis, and the downregulation of miR-301a restrained proliferation and activation of fibroblasts. Furthermore, this study demonstrated that TSC1 was a functional target of miR-301a in fibroblasts, and the negative regulation of TSC1 by miR-301a promoted the severity of pulmonary fibrosis through the mammalian target of rapamycin (mTOR) signaling pathway. The blocking of miR-301a by the intravenous injection of antagomiR-301a inhibited the proliferation of fibroblasts and the structural destruction of lung tissues in the bleomycin-induced lung fibrosis mouse model. The findings revealed the crucial role of the miR-301a/TSC1/mTOR axis in the pathogenesis of pulmonary fibrosis, suggesting that miR-301a might serve as a potential therapeutic target.
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Affiliation(s)
- Jiexuan Wang
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Xun Li
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China
| | - Mingtian Zhong
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China
| | - Yansheng Wang
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Liming Zou
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China
| | - Miaomiao Wang
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China
| | - Xiaoli Gong
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China
| | - Xinjie Wang
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China
| | - Chengzhi Zhou
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
| | - Xiaodong Ma
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China.
| | - Ming Liu
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
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14
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Dong K, Du Q, Cui X, Wan P, Kaltenmeier C, Luo J, Yan B, Yan Y, Geller DA. MicroRNA-301a ( miR-301a) is induced in hepatocellular carcinoma (HCC) and down- regulates the expression of interferon regulatory factor-1. Biochem Biophys Res Commun 2020; 524:273-279. [PMID: 31987500 PMCID: PMC7857543 DOI: 10.1016/j.bbrc.2020.01.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 01/05/2020] [Indexed: 12/21/2022]
Abstract
Hepatocellular carcinoma (HCC) tumors evade death in part by downregulating expression of the tumor suppressor gene Interferon regulatory factor-1 (IRF-1). However, the molecular mechanisms accounting for IRF-1 suppression in HCC have not been well described. In this study, we identified a novel microRNA-301a (miR-301a) binding site in the 3'-untranslated region (3'- UTR) of the human IRF-1 gene and hypothesized a functional role for miR-301a in regulating HCC growth. We show that miR-301a is markedly upregulated in primary HCC tumors and HCC cell lines, while IRF-1 is down-regulated in a post-transcriptional manner. MiR-301a regulates basal and inducible IRF-1 expression in HCC cells with an inverse relationship between miR-301a and IRF-1 expression in HCC cells. Chronic hypoxia induces miR-301a in HCC in vitro and decreases IRF-1 expression. Finally, miR-301a inhibition increases apoptosis and decreases HCC cell proliferation. These findings suggest that targeting of IRF-1 by miR-301a contributes to the molecular basis for IRF-1 downregulation in HCC and provides new insight into the regulation of HCC by miRNAs.
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Affiliation(s)
- Kun Dong
- Department of Pediatric Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Qiang Du
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Xiao Cui
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Peiqi Wan
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | | | - Jing Luo
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Bing Yan
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Yihe Yan
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - David A Geller
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
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15
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Zhen LX, Gu YY, Zhao Q, Zhu HF, Lv JH, Li SJ, Xu Z, Li L, Yu ZR. MiR-301a promotes embryonic stem cell differentiation to cardiomyocytes. World J Stem Cells 2019; 11:1130-1141. [PMID: 31875873 PMCID: PMC6904867 DOI: 10.4252/wjsc.v11.i12.1130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 10/08/2019] [Accepted: 10/14/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Cardiovascular disease is the leading cause of death worldwide. Tissue repair after pathological injury in the heart remains a major challenge due to the limited regenerative ability of cardiomyocytes in adults. Stem cell-derived cardiomyocytes provide a promising source for the cell transplantation-based treatment of injured hearts.
AIM To explore the function and mechanisms of miR-301a in regulating cardiomyocyte differentiation of mouse embryonic stem (mES) cells, and provide experimental evidence for applying miR-301a to the cardiomyocyte differentiation induction from stem cells.
METHODS mES cells with or without overexpression of miR-301a were applied for all functional assays. The hanging drop technique was applied to form embryoid bodies from mES cells. Cardiac markers including GATA-4, TBX5, MEF2C, and α-actinin were used to determine cardiomyocyte differentiation from mES cells.
RESULTS High expression of miR-301a was detected in the heart from late embryonic to neonatal mice. Overexpression of miR-301a in mES cells significantly induced the expression of cardiac transcription factors, thereby promoting cardiomyocyte differentiation and beating cardiomyocyte clone formation. PTEN is a target gene of miR-301a in cardiomyocytes. PTEN-regulated PI3K-AKT-mTOR-Stat3 signaling showed involvement in regulating miR-301a-promoted cardiomyocyte differentiation from mES cells.
CONCLUSION MiR-301a is capable of promoting embryonic stem cell differentiation to cardiomyocytes.
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Affiliation(s)
- Li-Xiao Zhen
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200120, China
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Yu-Ying Gu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200120, China
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Qian Zhao
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200120, China
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Hui-Fang Zhu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200120, China
| | - Jin-Hui Lv
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200120, China
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Shu-Jun Li
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200120, China
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Zhen Xu
- Department of Microbiology and Immunology, Wenzhou Medical College, Wenzhou 325000, Zhejiang Province, China
| | - Li Li
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200120, China
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Zuo-Ren Yu
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200120, China
- Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
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16
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Yue X, Lan F, Xia T. Hypoxic Glioma Cell-Secreted Exosomal miR-301a Activates Wnt/β-catenin Signaling and Promotes Radiation Resistance by Targeting TCEAL7. Mol Ther 2019; 27:1939-1949. [PMID: 31402274 PMCID: PMC6838947 DOI: 10.1016/j.ymthe.2019.07.011] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 06/18/2019] [Accepted: 07/08/2019] [Indexed: 11/18/2022] Open
Abstract
Recent evidence suggests that microRNAs (miRNAs) can be released to the extracellular microenvironment and mediate cell-cell communication through exosomes. The aim of this study was to identify exosomal miR-301a (exo-miR-301a) involved in glioblastoma (GBM) radioresistance and reveal the possible mechanisms. The exo-miR-301a specifically secreted by hypoxic GBM cells could transfer to corresponding normoxia-cultured cells and promote radiation resistance. Hypoxic exo-miR-301a directly targeted TCEAL7 genes, which were identified as a tumor suppressor in GBM malignancy and actively repressed its' expression in normoxic glioma cells. Our studies indicated that TCEAL7 negatively regulated the Wnt/β-catenin pathway by blocking β-catenin translocation from cytoplasm to nucleus. Interestingly, we clarified that the Wnt/β-catenin signaling was activated by miR-301a and TCEAL7 mediated the important procession. The exo-miR-301a was involved in the resistance to radiotherapy, and the effects would be reversed by miR-301a inhibition or TCEAL7 overexpression to regulate the Wnt/β-catenin axis. Here we show that exo-miR-301a, which is characteristically expressed and secreted by hypoxic glioma cells, is a potent regulator of Wnt/β-catenin and then depresses radiation sensitivity through targeting anti-oncogene TCEAL7. The newly identified exo-miR-301a/TCEAL7-signaling axis could present a novel target for cellular resistance to cancer therapeutic radiation in GBM patients.
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Affiliation(s)
- Xiao Yue
- Department of Neorosurgery, The Affiliated Hospital of Xiangnan University (Clinical College), ChenZhou, Hunan, P.R. China
| | - Fengming Lan
- Department of Radiation Oncology, National Cancer Center/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, P.R. China.
| | - Tingyi Xia
- Department of Radiation Oncology, PLA Airforce General Hospital, Beijing 100142, P.R. China
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17
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Yin J, Chen D, Luo K, Lu M, Gu Y, Zeng S, Chen X, Song Y, Zhang Z, Zheng G, He Z, Liu H. Cip2a/ miR-301a feedback loop promotes cell proliferation and invasion of triple-negative breast cancer. J Cancer 2019; 10:5964-5974. [PMID: 31762806 PMCID: PMC6856592 DOI: 10.7150/jca.35704] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 08/19/2019] [Indexed: 12/30/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a highly aggressive breast cancer subtype and lacks effective targeted therapies. Cancerous inhibitor of protein phosphatase 2A (Cip2a) is an oncogene that is known to inhibit PP2A tumor suppressor activity in human malignancies. We previously demonstrated that Cip2a is a novel target for the treatment of TNBC. However, the functional roles of Cip2a in TNBC progression are still not fully characterized. In this study, we identified that miR-301a is a novel target of Cip2a in TNBC cell lines by miRNA microarray analysis. We found that Cip2a increases E2F1 expression, which in turn transcriptional activates miR-301a by occupying the miR-301a host gene SKA2 promoter. Moreover, we found that miR-301a level is significantly increased in TNBC tissues, and up-regulation of miR-301a is responsible for Cip2a-induced cell proliferation and invasion of TNBC cells. Furthermore, miR-301a feedback promotes the expression of Cip2a via activation of ERK/CREB signaling. Together, our study suggests an auto-regulatory feedback loop between Cip2a and miR-301a and this auto-regulatory loop might play an important role in TNBC progression.
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Affiliation(s)
- Jiang Yin
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Danyang Chen
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Kai Luo
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Minying Lu
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Yixue Gu
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Shanshan Zeng
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Xiangzhou Chen
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Ying Song
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Zhijie Zhang
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Guopei Zheng
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Zhimin He
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
| | - Hao Liu
- Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, 510095, PR China
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Li X, Zhong M, Wang J, Wang L, Lin Z, Cao Z, Huang Z, Zhang F, Li Y, Liu M, Ma X. miR-301a promotes lung tumorigenesis by suppressing Runx3. Mol Cancer 2019; 18:99. [PMID: 31122259 PMCID: PMC6532219 DOI: 10.1186/s12943-019-1024-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 05/02/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Our previous report demonstrated that genetic ablation of miR-301a reduces Kras-driven lung tumorigenesis in mice. However, the impact of miR-301a on host anti-tumor immunity remains unexplored. Here we assessed the underlying molecular mechanisms of miR-301a in the tumor microenvironment. METHODS The differentially expressed genes were identified by using deep sequencing. The immune cell counts, and cytokines expression were analyzed by realtime PCR, immunohistochemistry and flow cytometry. The role of miR-301a/Runx3 in lung tumor was evaluated on cell growth, migration and invasion. The function of miR-301a/Runx3 in regulating tumor microenvironment and tumor metastasis were evaluated in Kras transgenic mice and B16/LLC1 syngeneic xenografts tumor models. RESULTS In this work, we identified 1166 up-regulated and 475 down-regulated differentially expressed genes in lung tumor tissues between KrasLA2 and miR-301a-/-; KrasLA2 mice. Immune response and cell cycle were major pathways involved in the protective role of miR-301a deletion in lung tumorigenesis. Overexpression of the miR-301a target, Runx3, was an early event identified in miR-301a-/-; KrasLA2 mice compared to WT-KrasLA2 mice. We found that miR-301a deletion enhanced CD8+ T cell accumulation and IFN-γ production in the tumor microenvironment and mediated antitumor immunity. Further studies revealed that miR-301a deficiency in the tumor microenvironment effectively reduced tumor metastasis by elevating Runx3 and recruiting CD8+ T cells, whereas miR-301a knockdown in tumor cells themselves restrained cell migration by elevating Runx3 expression. CONCLUSIONS Our findings further underscore that miR-301a facilitates tumor microenvironment antitumor immunity by Runx3 suppression in lung tumorigenesis.
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Affiliation(s)
- Xun Li
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou, 510631 China
| | - Mingtian Zhong
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Jiexuan Wang
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120 China
| | - Lei Wang
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou, 510631 China
| | - Zhanwen Lin
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou, 510631 China
| | - Zhi Cao
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Zhujuan Huang
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Fengxue Zhang
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
| | - Yong Li
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH USA
| | - Ming Liu
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120 China
| | - Xiaodong Ma
- Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, South China Normal University, Guangzhou, 510631 China
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006 China
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Peng LN, Shi WT, Feng HR, Wei CY, Yin QN. Effect of miR-301a/PTEN pathway on the proliferation and apoptosis of cervical cancer. Innate Immun 2019; 25:217-223. [PMID: 30943822 PMCID: PMC6830884 DOI: 10.1177/1753425919840702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/06/2019] [Accepted: 03/06/2019] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to evaluate the effect of the miR-301a/PTEN pathway in cervical cancer. miR-301a and PTEN expression were measured by quantitative real-time PCR (qRT-PCR) in tissues samples and HeLa cells. PTEN protein level was determined by Western blotting. Dual reporter luciferase assay was performed to validate PTEN as a direct target of miR-301a. The gain- and loss-of function assay was performed by miR-301a overexpression and silencing. Cell proliferation was monitored by cell counting Kit-8 (CCK-8). Cell apoptosis was quantitated by flow cytometry. SPSS was used to analyze the significant difference in the treatments. miR-301a demonstrated a significantly higher expression in cervical carcinoma tissues compared with the paired non-carcinoma tissues ( n = 12), while PTEN expression was found to be significantly lower in cervical carcinoma tissues than their paired non-carcinoma tissues ( n = 12). In addition, PTEN was identified as the direct target of miR-301a. Moreover, overexpression of miR-301a significantly promoted HeLa cells proliferation and anti-apoptosis which had a reverse pattern after PTEN overexpression. Our results confirm PTEN as a direct target of miR-301a in HeLa cells and suggest that miR-301a/PTEN pathway contributes to the development and progression of cervical cancer.
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Affiliation(s)
- Li-na Peng
- Department of Gynecology and Obstetrics, Liaocheng
People’s Hospital, P.R. China
| | - Wen-tian Shi
- Department of Gynecology and Obstetrics, Liaocheng
People’s Hospital, P.R. China
| | - Huan-rong Feng
- Department of Gynecology and Obstetrics, Liaocheng
People’s Hospital, P.R. China
| | - Chuan-yu Wei
- Department of Information, The Fourth People’s
Hospital, Liaocheng, P.R. China
| | - Qi-nan Yin
- Clinical Center of National Institutes of Health,
Bethesda, MD, USA
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20
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Feng T, Han BH, Yang GL, Shi CJ, Gao ZW, Cao MZ, Zhu XL. Neuroprotective Influence of miR-301a Inhibition in Experimental Cerebral Ischemia/Reperfusion Rat Models Through Targeting NDRG2. J Mol Neurosci 2019; 68:144-52. [PMID: 30895440 DOI: 10.1007/s12031-019-01293-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/07/2019] [Indexed: 12/27/2022]
Abstract
The objective of this study is to find out the potential influence of miR-301a in an experimental cerebral ischemia-reperfusion (I/R) rat model through targeting NDRG2. Rats with cerebral I/R injury were constructed and classified into model, miR-301a inhibitor, miR-301a mimic, NC (negative control), siNDRG2, NDRG2, and miR-301a inhibitor + si-NDRG2 groups, as well as another sham group. Cerebral infarct volume and cell apoptosis were observed by TTC staining and TUNEL staining. The targeting relationship between miR-301a and NDRG2 was verified by luciferase assay. ELISA, qRT-PCR, and Western blot were used to detect the expressions of related molecules. Compared with sham group, rats in the model group had elevated neurological function score and infarct volume; meanwhile, the cell apoptosis rate and inflammatory response were also increased with enhanced expression of miR-301a and NDRG2 (all P < 0.05). These changes were worsened in the miR-301a mimic and si-NDRG2 groups. Conversely, those rats in the miR-301a inhibitor and NDRG2 groups presented increased NDRG2, and at the same time, other above concerning factors also exhibited opposite tendencies (all P < 0.05). Dual-luciferase reporter gene assay confirmed that NDRG2 was a target gene of miR-301a, and si-NDRG2 could reverse the neuroprotective effect of miR-301a inhibitor in rats with cerebral I/R injury. Inhibiting miR-301a has a neuroprotective effect on rats with cerebral I/R injury to ameliorate cell apoptosis and inflammatory response through possibly targeting NDRG2.
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Lan F, Qing Q, Pan Q, Hu M, Yu H, Yue X. Serum exosomal miR-301a as a potential diagnostic and prognostic biomarker for human glioma. Cell Oncol (Dordr) 2018; 41:25-33. [PMID: 29076027 DOI: 10.1007/s13402-017-0355-3] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2017] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Exosomal miRNAs that play an important role in cell-cell communication have attracted major attention as potential diagnostic and prognostic biomarkers for various cancers. The aim of this study was to determine the diagnostic/prognostic significance of serum exosomal miR-301a in glioma patients. METHODS Quantitative real-time PCR was used to determine the serum exosomal expression levels of miR-301a. Kaplan-Meier survival analyses, Cox regression analyses and ROC working curve analyses were applied to assess the diagnostic and prognostic values of miR-301a in glioma patients. Also, several in vitro assays were used, including proliferation, invasion and cell signaling assays. RESULTS First, we established that serum exosomal miR-301a extracted from grade IV glioblastoma (GBM) patients was biologically active, i.e., promoted the proliferation and invasion of glioma-derived H4 cells. Subsequently, we found that serum exosomal miR-301a levels were significantly up-regulated in glioma patients compared to healthy controls. Additionally, we found that increased serum exosomal miR-301a levels were correlated with ascending pathological grades and lower Karnofsky performance status (KPS) scores. Importantly, we also found that the serum exosomal miR-301a levels were significantly reduced after surgical resection of primary tumors and increased again during GBM recurrence. Kaplan-Meier analysis of patients with an advanced pathological grade (III or IV) and an increased serum exosomal miR-301a level revealed a longer overall survival (OS) compared to those with a lower level (p < 0.01). Both univariate and multivariate Cox regression analyses confirmed that serum exosomal miR-301a levels are independently associated with OS. Finally, we found that miR-301a may activate the AKT and FAK signaling pathways by down regulating PTEN. CONCLUSIONS Our data indicate that serum exosomal miR-301a levels may reflect the cancer-bearing status and pathological changes in glioma patients. Serum exosomal miR-301a expression may serve as a novel biomarker for glioma diagnosis and as a prognostic factor for advanced grade disease.
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Affiliation(s)
- Fengming Lan
- Department of Radiation Oncology, Tianjin Hospital, 406 Jiefangnan Road, Tianjin, 300211, People's Republic of China
| | - Qin Qing
- Department of Radiation Oncology, PLA Airforce General Hospital of Anhui Medical University, Beijing, 100142, People's Republic of China
| | - Qiang Pan
- Department of Neurosurgery, Laiwu City People's Hospital, Laiwu, Shandong Province, 271100, People's Republic of China
| | - Man Hu
- Departments of Radiation Oncology and Shandong Province Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong, 250117, People's Republic of China
| | - Huiming Yu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of radiotherapy, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Beijin, 100142, People's Republic of China.
| | - Xiao Yue
- Tianjin Huanhu Hospital, Tianjin Neurosurgery Institute, 6 Jizhao Road, Tianjin, 300350, People's Republic of China.
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22
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Chen J, Zhuang Y, Zhang ZF, Wang S, Jin P, He C, Hu PC, Wang ZF, Li ZQ, Xia GM, Li G, Wang Y, Wan Q. Glycine confers neuroprotection through microRNA-301a/PTEN signaling. Mol Brain 2016; 9:59. [PMID: 27230112 PMCID: PMC4880874 DOI: 10.1186/s13041-016-0241-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 05/17/2016] [Indexed: 12/22/2022] Open
Abstract
Background Glycine is known to protect against neuronal death. However, the underlying mechanism remains to be elucidated. The microRNA-301a is involved in both biological and pathological processes. But it is not known whether microRNA-301a has a neuroprotective property. In this study, we aimed to determine whether glycine-induced neuroprotection requires microRNA-301a-dependent signaling. Results We provided the first evidence that glycine increased the expression of microRNA-301a in cultured rat cortical neurons and protected against cortical neuronal death through up-regulation of microRNA-301a after oxygen-glucose deprivation. MicroRNA-301a directly bound the predicted 3′UTR target sites of PTEN and reduced PTEN expression in cortical neurons. We revealed that PTEN down-regulation by microRNA-301a mediated glycine-induced neuroprotective effect following oxygen-glucose deprivation. Conclusions Our results suggest that 1) microRNA-301a is neuroprotective in oxygen-glucose deprivation-induced neuronal injury; 2) glycine is an upstream regulator of microRNA-301a; 3) glycine confers neuroprotection through microRNA-301a/PTEN signal pathway.
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Affiliation(s)
- Juan Chen
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China.,Department of Neurology, the Central Hospital of Wuhan, Wuhan, 430060, China
| | - Yang Zhuang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Zhi-Feng Zhang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Shu Wang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Ping Jin
- Department of Neurology, the Central Hospital of Wuhan, Wuhan, 430060, China
| | - Chunjiang He
- Department of Genetics, School of Basic Medical Sciences, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Peng-Chao Hu
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Ze-Fen Wang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Zhi-Qiang Li
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University School of Medicine, 169 Donghu Street, Wuhan, 430071, China
| | - Guang-Ming Xia
- Department of Neurology, the Central Hospital of Huanggang, Huanggang, 438000, China
| | - Gang Li
- Department of Neurology, the Central Hospital of Huanggang, Huanggang, 438000, China
| | - Yuan Wang
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China
| | - Qi Wan
- Department of Physiology, School of Basic Medical Sciences, Medical Research Institute, Wuhan University School of Medicine, 185 Donghu Street, Wuhan, 430071, China. .,Department of Neurosurgery, Zhongnan Hospital, Wuhan University School of Medicine, 169 Donghu Street, Wuhan, 430071, China.
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23
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Yue X, Cao D, Lan F, Pan Q, Xia T, Yu H. MiR-301a is activated by the Wnt/β-catenin pathway and promotes glioma cell invasion by suppressing SEPT7. Neuro Oncol 2016; 18:1288-96. [PMID: 27006177 DOI: 10.1093/neuonc/now044] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 02/19/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND miR-301a is frequently dysregulated and specific to human tumors, playing a critical role in tumorigenesis; however, the exact functions and regulatory mechanisms of miR-301a in glioma cells remain largely unknown. Herein, we show that miR-301a activated by the Wnt/β-catenin pathway promoted the invasion of glioma cells by directly targeting SEPT7. METHODS Biochemical, luciferase reporter, and hromatin immunoprecipitation PCR assays characterized the function and regulatory mechanisms of miR-301a in glioma invasion. RESULTS Initially, we detected the expression of miR-301a in glioma tissues and identified that miR-301a had increased, with ascending grades of the tumor. Furthermore, high levels of miR-301a were associated with a poorer prognosis in glioma patients. It is important to note that the Wnt/β-catenin/TCF4 pathway enhanced miR-301a expression by binding to the promoter region. To determine the oncogenic functions of miR-301a in glioma, SEPT7 was supported as the direct target gene. In addition, the Wnt/β-catenin pathway repressed SEPT7 expression, which was dependent on miR-301a in glioma cells. Finally, miR-301a was activated by Wnt/β-catenin and then promoted invasion of glioma cells by inhibiting the expression of SEPT7 in vitro and in vivo. CONCLUSIONS Our findings revealed the mechanism of action for miR-301a in tumor cell invasion. Moreover, the Wnt/miR-301a/SEPT7 signaling axis might be a novel target in treating glioma.
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Affiliation(s)
- Xiao Yue
- Tianjin Huanhu Hospital, Tianjin Neurosurgery Institute, Tianjin , China (X.Y., D.C.); Department of Radiation Oncology, Tianjin Hospital, Tianjin , China (F.L.); Department of Neurosurgery, Laiwu City People's Hospital, Laiwu, China (Q.P.); Department of Radiation Oncology, P.L.A Airforce General Hospital, Beijing, China (T.X.); Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing, China (H.Y.)
| | - Dechen Cao
- Tianjin Huanhu Hospital, Tianjin Neurosurgery Institute, Tianjin , China (X.Y., D.C.); Department of Radiation Oncology, Tianjin Hospital, Tianjin , China (F.L.); Department of Neurosurgery, Laiwu City People's Hospital, Laiwu, China (Q.P.); Department of Radiation Oncology, P.L.A Airforce General Hospital, Beijing, China (T.X.); Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing, China (H.Y.)
| | - FengMing Lan
- Tianjin Huanhu Hospital, Tianjin Neurosurgery Institute, Tianjin , China (X.Y., D.C.); Department of Radiation Oncology, Tianjin Hospital, Tianjin , China (F.L.); Department of Neurosurgery, Laiwu City People's Hospital, Laiwu, China (Q.P.); Department of Radiation Oncology, P.L.A Airforce General Hospital, Beijing, China (T.X.); Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing, China (H.Y.)
| | - Qiang Pan
- Tianjin Huanhu Hospital, Tianjin Neurosurgery Institute, Tianjin , China (X.Y., D.C.); Department of Radiation Oncology, Tianjin Hospital, Tianjin , China (F.L.); Department of Neurosurgery, Laiwu City People's Hospital, Laiwu, China (Q.P.); Department of Radiation Oncology, P.L.A Airforce General Hospital, Beijing, China (T.X.); Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing, China (H.Y.)
| | - Tingyi Xia
- Tianjin Huanhu Hospital, Tianjin Neurosurgery Institute, Tianjin , China (X.Y., D.C.); Department of Radiation Oncology, Tianjin Hospital, Tianjin , China (F.L.); Department of Neurosurgery, Laiwu City People's Hospital, Laiwu, China (Q.P.); Department of Radiation Oncology, P.L.A Airforce General Hospital, Beijing, China (T.X.); Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing, China (H.Y.)
| | - Huiming Yu
- Tianjin Huanhu Hospital, Tianjin Neurosurgery Institute, Tianjin , China (X.Y., D.C.); Department of Radiation Oncology, Tianjin Hospital, Tianjin , China (F.L.); Department of Neurosurgery, Laiwu City People's Hospital, Laiwu, China (Q.P.); Department of Radiation Oncology, P.L.A Airforce General Hospital, Beijing, China (T.X.); Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiotherapy, Peking University Cancer Hospital & Institute, Beijing, China (H.Y.)
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Liang B, Yin JJ, Zhan XR. MiR-301a promotes cell proliferation by directly targeting TIMP2 in multiple myeloma. Int J Clin Exp Pathol 2015; 8:9168-74. [PMID: 26464662 PMCID: PMC4583894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 07/25/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Multiple myeloma (MM) is a plasma cell malignancy characterized by clonal proliferation of plasma cells in the bone marrow and microRNAs play a crucial role in its tumorigenesis and development. The purpose of this study was to investigate the biological functions of miR-301a in MM. METHODS Quantitative real-time PCR was used to detect the expression level of miR-301a. Cell proliferation was assessed by MTT assay. Flow cytometry was performed to valuate cell apoptosis and cell cycle distribution. Moreover, luciferase reporter assay and western blot were conducted to determine the potential target of miR-301a in MM cells. RESULTS MiR-301a is significantly up-regulated in MM clinical bone marrow samples and cell lines compared with normal controls. Gain-of-function and loss-of-function studies in MM cell line U266 showed that miR-301a acts as an oncogene in MM by promoting cell proliferation and inhibiting apoptosis. Furthermore, a tumor suppressor gene, tissue inhibitor of metallopeptidases-2 (TIMP2) was identified as a direct target of miR-301a and knockdown of TIMP2 could mimic the effect of miR-301a in MM. CONCLUSIONS MiR-301a promotes cell proliferation and inhibits apoptosis by direct targeting TIMP2 in MM, and miR-301a might represent a novel molecular in MM and may provide helpful therapeutic strategies for MM treatment.
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Affiliation(s)
- Bo Liang
- Department of Hematology, Xinxiang Central Hospital Xinxiang 453000, Henan Province, China
| | - Jun-Jie Yin
- Department of Hematology, Xinxiang Central Hospital Xinxiang 453000, Henan Province, China
| | - Xin-Rong Zhan
- Department of Hematology, Xinxiang Central Hospital Xinxiang 453000, Henan Province, China
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Ma X, Yan F, Deng Q, Li F, Lu Z, Liu M, Wang L, Conklin DJ, McCracken J, Srivastava S, Bhatnagar A, Li Y. Modulation of tumorigenesis by the pro-inflammatory microRNA miR-301a in mouse models of lung cancer and colorectal cancer. Cell Discov 2015; 1:15005. [PMID: 27462406 PMCID: PMC4860842 DOI: 10.1038/celldisc.2015.5] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 02/12/2015] [Indexed: 02/07/2023] Open
Abstract
Lung cancer and colorectal cancer account for over one-third of all cancer deaths in the United States. MicroRNA-301a (miR-301a) is an activator of both nuclear factor-κB (NF-κB) and Stat3, and is overexpressed in both deadly malignancies. In this work, we show that genetic ablation of miR-301a reduces Kras-driven lung tumorigenesis in mice. And miR-301a deficiency protects animals from dextran sodium sulfate-induced colon inflammation and colitis-associated colon carcinogenesis. We also demonstrate that miR-301a deletion in bone marrow-derived cells attenuates tumor growth in the colon carcinogenesis model. Our findings ascertain that one microRNA—miR-301a—activates two major inflammatory pathways (NF-κB and Stat3) in vivo, generating a pro-inflammatory microenvironment that facilitates tumorigenesis.
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Affiliation(s)
- Xiaodong Ma
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Biochemistry and Molecular Biology, School of Medicine, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, KY, USA; Institute of Pharmaceutical Research, South China Normal University, Guangzhou, China
| | - Fang Yan
- Department of Histology and Embryology; Southern Medical University , Guangzhou, China
| | - Qipan Deng
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Louisville , Louisville, KY, USA
| | - Fenge Li
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Louisville , Louisville, KY, USA
| | - Zhongxin Lu
- Department of Medical Laboratory and Central Laboratory, The Central Hospital of Wuhan , Wuhan, China
| | - Mofang Liu
- Institute of Biochemistry and Cell Biology, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences , Shanghai, China
| | - Lisheng Wang
- Department of Gastroenterology, Shenzhen Municipal People's Hospital, Jinan University of Medical Sciences , Shenzhen, China
| | - Daniel J Conklin
- Diabetes and Obesity Center, Department of Medicine, University of Louisville , Louisville, KY, USA
| | - James McCracken
- Diabetes and Obesity Center, Department of Medicine, University of Louisville , Louisville, KY, USA
| | - Sanjay Srivastava
- Diabetes and Obesity Center, Department of Medicine, University of Louisville , Louisville, KY, USA
| | - Aruni Bhatnagar
- Diabetes and Obesity Center, Department of Medicine, University of Louisville , Louisville, KY, USA
| | - Yong Li
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Biochemistry and Molecular Biology, School of Medicine, University of Louisville, Louisville, KY, USA; Diabetes and Obesity Center, Department of Medicine, University of Louisville, Louisville, KY, USA
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26
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Huang L, Liu Y, Wang L, Chen R, Ge W, Lin Z, Zhang Y, Liu S, Shan Y, Lin Q, Jiang M. Down-regulation of miR-301a suppresses pro-inflammatory cytokines in Toll-like receptor-triggered macrophages. Immunology 2013; 140:314-22. [PMID: 23808420 DOI: 10.1111/imm.12139] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 06/21/2013] [Accepted: 06/24/2013] [Indexed: 12/21/2022] Open
Abstract
In many types of tumours, especially pancreatic adenocarcinoma, miR-301a is over-expressed. This over-expression results in negative regulation of the target gene of miR-301a, the nuclear factor-κB (NF-κB) repressing factor (NKRF), increasing the activation of NF-κB and production of NF-κB-responsive pro-inflammatory cytokines such as interleukin-8, interferon-β, nitric oxide synthase 2A and cytochrome oxidase subunit 2 (COX-2). However, in immune cells, mechanisms that regulate miR-301a have not been reported. Similar to tumour cells, Toll-like receptor (TLR) -activated macrophages produce NF-κB-responsive pro-inflammatory cytokines. Therefore, it is of considerable interest to determine whether miR-301a regulates the secretion of cytokines by immune cells. In the present study, we demonstrate that the expression of miR-301a was decreased in TLR-triggered macrophages. Through targeting NKRF, miR-301a affected the activity of NF-κB and the expression of pro-inflammatory genes downstream of NF-κB such as COX-2, prostaglandin E2 and interleukin-6. In addition, when lipopolysaccharide-treated macrophages were simultaneously stimulated with trichostatin A, an inhibitor of histone deacetylases, the expression of miR-301a increased, whereas NKRF and pro-inflammatory cytokine expression decreased. However, further investigation revealed that there was no correlation between the induction of miR-301a and the inhibitory effect of trichostatin A on lipopolysaccharide-induced gene expression in macrophages. In summary, our study indicates a new mechanism by which miR-301a regulates inflammatory cytokine expression in macrophages, which may clarify the regulatory role of microRNAs in immune-mediated inflammatory responses.
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Affiliation(s)
- Lisong Huang
- Emergency Department of Navy General Hospital, Beijing, China
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Ma F, Chen D, Chi Y, Chen F, Li X, Han Z. The expression and role of miR-301a in human umbilical cord-derived mesenchymal stromal cells. Cytotherapy 2013; 15:1511-6. [PMID: 24035358 DOI: 10.1016/j.jcyt.2013.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 06/02/2013] [Accepted: 06/19/2013] [Indexed: 01/14/2023]
Abstract
BACKGROUND AIMS Toll-like receptors (TLRs) are expressed in human umbilical cord-derived mesenchymal stromal cells (UC-MSCs), and activation of TLRs plays an important role in proliferation, differentiation and immunoregulatory activity of UC-MSCs. We investigated whether TLRs regulated the expression of microRNAs (miRNAs) in UC-MSCs and the role of miRNAs. METHODS AND RESULTS With miRNA microarray analysis, we demonstrated that the expression of many miRNAs varied when UC-MSCs were stimulated with the ligand of toll-like receptor 4 (TLR4), lipopolysaccharide (LPS). The expression of some miRNAs was verified by polymerase chain reaction. It was found that microRNA-301a (miR-301a) was up-regulated by the ligands of TLR3 and TLR4, LPS and polyinosinic acid:polycytidylic acid poly(I:C). However, the inhibitors of nuclear factor κB NF-κB and interferon regulatory factor 3 IRF3 signal attenuated the effect of LPS and poly(I:C) on miR-301a expression. Over-expression or lower expression of miR-301a affected the cytokine secretion of UC-MSCs. CONCLUSIONS The expression of miR-301a in UC-MSCs was regulated by TLRs, and miR-301a affected the cytokine secretion of UC-MSCs.
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Affiliation(s)
- Fengxia Ma
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Disease, Chinese Academy of Medical Sciences, Tianjin, China
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Xu XD, He XJ, Tao HQ, Zhang W, Wang YY, Ye ZY, Zhao ZS. Abnormal expression of miR-301a in gastric cancer associated with progression and poor prognosis. J Surg Oncol 2013; 108:197-202. [PMID: 23832550 DOI: 10.1002/jso.23374] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Accepted: 06/12/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND OBJECTIVES miR-301a is significantly overexpressed in many cancers. However, its expression and biological role in gastric cancer remain poorly understood. We investigated microRNA-301a (miR-301a) expression in gastric cancer and determined its effects on cancer cell behavior and its clinical significance in the development and progression of gastric cancer. METHODS We determined miR-301a expression in gastric tumors and gastric cancer cell lines by reverse transcription-polymerase chain reaction. The effects of miR-301a on cell clone formation, migration, and invasion of HGC-27 and SGC-7901 cells were detected following transfection of an miR-301a inhibitor. miR-301a expression in a 304-tissue gastric cancer microarray was determined by in situ hybridization and its role in progression and prognosis was analyzed. RESULTS miR-301a was upregulated in gastric tumor tissues and cell lines. Down-regulation of miR-301a significantly inhibited cell clone formation, migration, and invasion of HGC-27and SGC-7901 cells. Overexpression of miR-301a in primary gastric cancer tissues was associated with tumor size, invasion depth, lymph node metastasis, and TNM stage. CONCLUSIONS miR-301a overexpression correlated with TNM stage and prognosis, suggesting that miR-301a is involved in cellular clone formation, migration, and invasion in vitro and may play an important role in the clinical progression and prognosis of gastric cancer.
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