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Tang C, Zhang Y. Detailed role of Let-7e in human diseases. Pathol Res Pract 2024; 260:155436. [PMID: 39018928 DOI: 10.1016/j.prp.2024.155436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 06/10/2024] [Accepted: 06/27/2024] [Indexed: 07/19/2024]
Abstract
As part of the epigenetic machinery, microRNAs (miRNAs) are extensively utilized by eukaryotes. By modulating gene expression in a variety of ways, these short RNAs mediate crucial physiological processes. This suggests that abnormalities in miRNA biogenesis and expression can be traced back to a variety of diseases. In addition, miRNAs are promising clinical candidates, especially for preclinical diagnosis. The Let family of miRNAs was one of the first to be discovered. As a prominent member of this category, extensive research has been conducted on Let-7e. The vast majority of evidence indicates an association between let-7e dysregulation and the onset and progression of disease, including malignancies. Because their effect depends on the genetic profile of disease and the affected tissue, different miRNAs play diverse roles in various diseases. However, what counts in miRNA studies is that just one miRNA may target numerous mRNAs in a cell at the exact time, therefore summarizing the effect of a single miRNA in human diseases can provide better insights into disease detection and treatment. The goal of this study is to gain a deeper understanding of how let-7e functions in human cells so that it can be utilized more effectively in clinical settings for diagnosis, prognosis, and treatment. We have reviewed the research on let-7e, focusing on the molecular underpinnings of biological processes controlled by this miRNA that contribute to the development and etiology of numerous disorders.
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Affiliation(s)
- Chaozhi Tang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yuling Zhang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China.
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2
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Subramanian M, Mills WT, Paranjpe MD, Onuchukwu US, Inamdar M, Maytin AR, Li X, Pomerantz JL, Meffert MK. Growth-suppressor microRNAs mediate synaptic overgrowth and behavioral deficits in Fragile X mental retardation protein deficiency. iScience 2024; 27:108676. [PMID: 38235335 PMCID: PMC10792201 DOI: 10.1016/j.isci.2023.108676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/20/2023] [Accepted: 12/05/2023] [Indexed: 01/19/2024] Open
Abstract
Abnormal neuronal and synapse growth is a core pathology resulting from deficiency of the Fragile X mental retardation protein (FMRP), but molecular links underlying the excessive synthesis of key synaptic proteins remain incompletely defined. We find that basal brain levels of the growth suppressor let-7 microRNA (miRNA) family are selectively lowered in FMRP-deficient mice and activity-dependent let-7 downregulation is abrogated. Primary let-7 miRNA transcripts are not altered in FMRP-deficiency and posttranscriptional misregulation occurs downstream of MAPK pathway induction and elevation of Lin28a, a let-7 biogenesis inhibitor. Neonatal restoration of brain let-7 miRNAs corrects hallmarks of FMRP-deficiency, including dendritic spine overgrowth and social and cognitive behavioral deficits, in adult mice. Blockade of MAPK hyperactivation normalizes let-7 miRNA levels in both brain and peripheral blood plasma from Fmr1 KO mice. These results implicate dysregulated let-7 miRNA biogenesis in the pathogenesis of FMRP-deficiency, and highlight let-7 miRNA-based strategies for future biomarker and therapeutic development.
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Affiliation(s)
- Megha Subramanian
- Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - William T. Mills
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Manish D. Paranjpe
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - Uche S. Onuchukwu
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Manasi Inamdar
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Amanda R. Maytin
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Xinbei Li
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Joel L. Pomerantz
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Mollie K. Meffert
- Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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3
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Lygeros S, Danielides G, Kyriakopoulos GC, Tsapardoni F, Grafanaki K, Stathopoulos C, Danielides V. Expression profiles of MMP-9 and EMMPRIN in chronic rhinosinusitis with nasal polyps. ACTA OTORHINOLARYNGOLOGICA ITALICA : ORGANO UFFICIALE DELLA SOCIETA ITALIANA DI OTORINOLARINGOLOGIA E CHIRURGIA CERVICO-FACCIALE 2023; 43:400-408. [PMID: 37519135 PMCID: PMC10773546 DOI: 10.14639/0392-100x-n2197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 03/15/2023] [Indexed: 08/01/2023]
Abstract
Objective Metalloproteinases (MMPs) are implicated in tissue remodeling in chronic rhinosinusitis with nasal polyps (CRSwNP). This study aimed to evaluate the expression profiles of MMP-9 and the extracellular matrix metalloproteinase inducer (EMMPRIN) in nasal polyps compared to healthy mucosa. Methods Tissue samples from 37 CRSwNP patients undergoing functional endoscopic sinus surgery and mucosal specimens from 12 healthy controls were obtained intra-operatively. MMP-9 and EMMPRIN mRNA levels were assessed by reverse transcription-polymerase chain reaction and their protein expression by Western blot analysis. Results MMP-9 mRNA expression levels were significantly elevated in CRSwNP compared to controls (p < 0.05). MMP-9 protein levels presented an increasing trend but with no statistical significance (p > 0.05). No statistically significant difference in EMMPRIN mRNA and protein levels was identified. Conclusions Upregulation of MMP-9 in nasal polyps is evident and highlights its role in the pathogenesis of CRSwNP. The lack of concordance between MMP-9 mRNA and protein levels may be attributed to post-translational gene expression regulation. Although EMMPRIN expression was not significantly different between the two groups, its role remains to be elucidated. MMP-9 may be a valuable biomarker and treatment target in CRSwNP.
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Affiliation(s)
- Spyridon Lygeros
- Department of Otorhinolaryngology, School of Medicine, University of Patras, Patras, Greece
| | - Gerasimos Danielides
- Department of Otorhinolaryngology, School of Medicine, University of Patras, Patras, Greece
| | | | - Foteini Tsapardoni
- Department of Ophthalmology, University Hospital of Patras, Patras, Greece
| | - Katerina Grafanaki
- Department of Biochemistry, School of Medicine, University of Patras, Patras, Greece
- Department of Dermatology, School of Medicine, University of Patras, Patras, Greece
| | | | - Vasileios Danielides
- Department of Otorhinolaryngology, School of Medicine, University of Patras, Patras, Greece
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Qiu L, Wang Y, Wang Y, Liu F, Deng S, Xue W, Wang Y. Ursolic Acid Ameliorated Neuronal Damage by Restoring Microglia-Activated MMP/TIMP Imbalance in vitro. Drug Des Devel Ther 2023; 17:2481-2493. [PMID: 37637267 PMCID: PMC10460164 DOI: 10.2147/dddt.s411408] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 08/05/2023] [Indexed: 08/29/2023] Open
Abstract
Purpose The oxygen and glucose deprivation-reoxygenation (OGDR) model is widely used to evaluate ischemic stroke and cerebral ischemia-reperfusion (I/R) injury in vitro. Excessively activated microglia produce pro-inflammatory mediators such as matrix metalloproteinases [MMPs] and their specific inhibitors, tissue inhibitors of metalloproteinases [TIMPs], causing neuronal damage. Ursolic acid (UA) acts as a neuroprotective agent in the rat middle cerebral artery occlusion/reperfusion (MCAO/R) model keeping the MMP/TIMP balance with underlying mechanisms unclear. Our study used OGDR model to determine whether and how UA reduces neuronal damage by reversing MMP/TIMP imbalance caused by microglia in I/R injury in vitro. Methods SH-SY5Y cells were first cultured with 95% N2 and 5% CO2 and then cultivated regularly for OGDR model. Cell viability was tested for a proper UA dose. We established a co-culture system with SH-SY5Y cells and microglia-conditioned medium (MCM) stimulated by lipopolysaccharide (LPS) and interferon-gamma (IFNγ). MMP9 and TIMP1 levels were measured with ELISA assay to confirm the UA effect. We added recombinant MMP9 (rMMP9) and TIMP1 neutralizing antibody (anti-TIMP1) for reconfirmation. Transmission electron microscopy was used to observe cell morphology, and flow cytometry and Annexin V-FITC and PI labeling for apoptotic conditions. We further measured the calcium fluorescence intensity in SH-SY5Y cells. Results The MCM significantly reduced cell viability of SH-SY5Y cells after OGDR (p<0.01), which was restored by UA (0.25 µM) (p<0.05), whereas lactate dehydrogenase activity, intraneuronal Ca2+ concentration, and apoptosis-related indexes were showed significant improvement after UA treatment (p<0.01). UA corrected the MMP/TIMP imbalance by decreasing MMP9 expression and increasing TIMP1 expression in the co-culture system (p<0.01) and the effects of UA on SH-SY5Y cells were mitigated by the administration of rMMP9 and anti-TIMP1 (p<0.01). Conclusion We demonstrated that UA inhibited microglia-induced neuronal cell death in an OGDR model of ischemic reperfusion injury by stabilizing the MMP9/TIMP1 imbalance.
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Affiliation(s)
- Luying Qiu
- Department of Neurology, Key Laboratory for Neurological Big Data of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yaxuan Wang
- Department of Anesthesiology, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yuye Wang
- Department of Neurology, Key Laboratory for Neurological Big Data of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
- Department of Neurology, China-Japan Friendship Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
| | - Fang Liu
- Department of Neurology, Key Laboratory for Neurological Big Data of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Shumin Deng
- Department of Neurology, Key Laboratory for Neurological Big Data of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Weishuang Xue
- Department of Neurology, Key Laboratory for Neurological Big Data of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yanzhe Wang
- Department of Neurology, Key Laboratory for Neurological Big Data of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China
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Identification of Dysregulated microRNAs in Glioblastoma Stem-like Cells. Brain Sci 2023; 13:brainsci13020350. [PMID: 36831894 PMCID: PMC9953941 DOI: 10.3390/brainsci13020350] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most common malignant primary brain tumor in adults. Despite multimodal therapy, median survival is poor at 12-15 months. At the molecular level, radio-/chemoresistance and resulting tumor progression are attributed to a small fraction of tumor cells, termed glioblastoma stem-like cells (GSCs). These CD133-expressing, self-renewing cells display the properties of multi-lineage differentiation, resulting in the heterogenous composition of GBM. MicroRNAs (miRNAs) as regulators of gene expression at the post-transcriptional level can alter many pathways pivotal to cancer stem cell fate. This study explored changes in the miRNA expression profiles in patient-derived GSCs altered on differentiation into glial fiber acid protein (GFAP)-expressing, astrocytic tumor cells using a polymerase chain reaction (PCR) array. Initially, 22 miRNAs showed higher expression in GSCs and 9 miRNAs in differentiated cells. The two most downregulated miRNAs in differentiated GSCs were miR-17-5p and miR-425-5p, whilst the most upregulated miRNAs were miR-223-3p and let-7-5p. Among those, miR-425-5p showed the highest consistency in an upregulation in all three GSCs. By transfection of a 425-5p miRNA mimic, we demonstrated downregulation of the GFAP protein in differentiated patient-derived GBM cells, providing potential evidence for direct regulation of miRNAs in the GSC/GBM cell transition.
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Pan X, Cen X, Xiong X, Zhao Z, Huang X. miR-17-92 cluster in osteoarthritis: Regulatory roles and clinical utility. Front Genet 2022; 13:982008. [PMID: 36523768 PMCID: PMC9745093 DOI: 10.3389/fgene.2022.982008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2023] Open
Abstract
Osteoarthritis (OA) is the most prevalent articular disease, especially in aged population. Caused by multi-factors (e.g., trauma, inflammation, and overloading), OA leads to pain and disability in affected joints, which decreases patients' quality of life and increases social burden. In pathophysiology, OA is mainly characterized by cartilage hypertrophy or defect, subchondral bone sclerosis, and synovitis. The homeostasis of cell-cell communication is disturbed as well in such pro-inflammatory microenvironment, which provides clues for the diagnosis and treatment of OA. MicoRNAs (miRNAs) are endogenous non-coding RNAs that regulate various processes via post-transcriptional mechanisms. The miR-17-92 cluster is an miRNA polycistron encoded by the host gene called MIR17HG. Mature miRNAs generated from MIR17HG participate in biological activities such as oncogenesis, neurogenesis, and modulation of the immune system. Accumulating evidence also indicates that the expression level of miRNAs in the miR-17-92 cluster is tightly related to the pathological processes of OA, such as chondrocyte apoptosis, extracellular matrix degradation, bone remodeling, and synovitis. In this review, we aim to summarize the roles of the miR-17-92 cluster in the underlying molecular mechanism during the development and progression of OA and shed light on the new avenue of the diagnosis and treatment of OA.
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Affiliation(s)
- Xuefeng Pan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiao Cen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Temporomandibular Joint, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiner Xiong
- Hospital of Stomatology, Zunyi Medical University, Zunyi, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xinqi Huang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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7
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Mahmoudi A, Butler AE, Jamialahmadi T, Sahebkar A. The role of exosomal miRNA in nonalcoholic fatty liver disease. J Cell Physiol 2022; 237:2078-2094. [PMID: 35137416 DOI: 10.1002/jcp.30699] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 12/14/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) impacts more than one-third of the population and is linked with other metabolic diseases. The term encompasses a wide spectrum of diseases, from modest steatosis to nonalcoholic steatohepatitis, fibrosis and, ultimately, cirrhosis with the potential for development of hepatocellular carcinoma. Currently, available methods for diagnosing NAFLD are invasive or lack accuracy, and monitoring to determine response to therapeutic interventions is challenging. Exosomes are nano-scaled extracellular vesicles that are secreted by a variety of cells. They convey proteins, mRNA, miRNA, and other bioactive molecules between cells and are involved in an extensive range of biological processes, particularly cell-cell communication. Several reports suggest that exosomes mediate miRNAs and, thus, they have potential clinical utility for diagnosis, prognosis, and therapeutics in liver diseases. In view of the vital role of exosomal microRNA in disease, we here synthesized current knowledge about the biogenesis of exosomal miRNA and exosome-mediated microRNA transfer. We then discuss the potential of exosomal miRNA in diagnosis and therapeutics of NAFLD.
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Affiliation(s)
- Ali Mahmoudi
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Tannaz Jamialahmadi
- Surgical Oncology Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Medicine, The University of Western Australia, Perth, Australia.,Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Wang S, Pan C, Ma X, Yang C, Tang L, Huang J, Wei X, Li H, Ma Y. Identification and Functional Verification Reveals that miR-195 Inhibiting THRSP to Affect Fat Deposition in Xinyang Buffalo. Front Genet 2022; 12:736441. [PMID: 35003205 PMCID: PMC8727870 DOI: 10.3389/fgene.2021.736441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 11/30/2021] [Indexed: 01/08/2023] Open
Abstract
The buffalo population is extensive in China, but its meat quality is relatively inferior. Therefore, improving meat quality should be one of the breeding goals. microRNAs (miRNAs) play an essential regulatory role in the post-transcriptional expression of genes. Some studies have reported their function regulating genes related to fat deposition and adipocyte differentiation in cattle, but there is limited reports in buffalo. We performed small RNA transcriptome sequencing of Xinyang buffalo adipose tissue between calves and adults in this study. As a result, 282 mature miRNAs were significantly differentially expressed, and co-expression analysis showed that 454 miRNAs were significantly associated with developmental stages. Target gene identification, GO (gene ontology) annotation, and KEGG analysis of miRNAs showed that miR-195, miR-192, and miR-24-3p could target key genes for lipogenesis and thus regulate adipose deposition and differentiation. Among them, miR-195 was significantly upregulated in adipose tissue and induced adipocytes of adult buffaloes, and its overexpression significantly inhibited lipid accumulation in primary adipocytes. Dual-luciferase reporter gene analysis showed that miR-195 reduced the expression of thyroid hormone response protein (THRSP) by targeting its 3′ untranslated terminal region, suggesting that miR-195 may inhibit lipid accumulation in adipocytes by regulating THRSP. The results confirmed the reliability of predictive screening of miRNAs and provided theoretical support for buffalo fattening.
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Affiliation(s)
- Shuzhe Wang
- Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan, China.,College of Life Sciences, Xinyang Normal University, Xinyang, China
| | - Cuili Pan
- Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan, China
| | - Xiaojie Ma
- College of Life Sciences, Xinyang Normal University, Xinyang, China
| | - Chaoyun Yang
- Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan, China
| | - Lin Tang
- Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan, China
| | - Jieping Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xuefeng Wei
- College of Life Sciences, Xinyang Normal University, Xinyang, China
| | - Hui Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Yun Ma
- Key Laboratory of Ruminant Molecular and Cellular Breeding of Ningxia Hui Autonomous Region, School of Agriculture, Ningxia University, Yinchuan, China.,College of Life Sciences, Xinyang Normal University, Xinyang, China
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Wang C, Liu S, Li J, Cheng Y, Wang Z, Feng T, Lu G, Wang S, Song J, Xia P, Hao L. Biological Functions of Let-7e-5p in Promoting the Differentiation of MC3T3-E1 Cells. Front Cell Dev Biol 2021; 9:671170. [PMID: 34568312 PMCID: PMC8455882 DOI: 10.3389/fcell.2021.671170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 08/03/2021] [Indexed: 11/18/2022] Open
Abstract
MicroRNAs let-7c and let-7f, two members of the let-7 family, were involved in regulating osteoblast differentiation and have an important role in bone formation. Let-7e-5p, which also belonged to the let-7 family, presented in the differentiation of adipose-derived stem cells and mouse embryonic stem cells. However, the role of let-7e-5p in osteoblast differentiation was unclear. Thus, this study aimed to elucidate the function of let-7e-5p in osteoblast differentiation and its mechanism. Firstly, we found that the let-7e-5p mimic promoted osteoblast differentiation but not the proliferation of MC3T3-E1 cells by positively regulating the expression levels of osteogenic-associated genes (RUNX2, OCN, OPN, and OSX), the activity of ALP, and formation of mineralized nodules. Moreover, we ascertained that the let-7e-5p mimic downregulated the post-transcriptional expression of SOCS1 by specifically binding to the 3′ untranslated region of SOCS1 mRNA. Also, let-7e-5p-induced SOCS1 downregulation increased the protein levels of p-STAT5 and IGF-1, which were both modulated by SOCS1 molecules. Furthermore, let-7e-5p abrogated the inhibition of osteogenic differentiation mediated by SOCS1 overexpression. Therefore, these results suggested that let-7e-5p regulated the differentiation of MC3T3-E1 cells through the JAK2/STAT5 pathway to upregulate IGF-1 gene expression by inhibiting SOCS1. These findings may provide a new insight into the regulatory role of let-7e-5p in osteogenic differentiation and imply the existence of a novel mechanism underlying let-7e-5p-mediated osteogenic differentiation.
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Affiliation(s)
- Chunli Wang
- College of Animal Science, Jilin University, Changchun, China
| | - Songcai Liu
- College of Animal Science, Jilin University, Changchun, China
| | - Jiaxin Li
- College of Animal Science, Jilin University, Changchun, China
| | - Yunyun Cheng
- College of Public Health, Jilin University, Changchun, China
| | - Zhaoguo Wang
- College of Animal Science, Jilin University, Changchun, China
| | - Tianqi Feng
- College of Animal Science, Jilin University, Changchun, China
| | - Guanhong Lu
- College of Animal Science, Jilin University, Changchun, China
| | - Siyao Wang
- College of Animal Science, Jilin University, Changchun, China
| | - Jie Song
- College of Animal Science, Jilin University, Changchun, China
| | - Peijun Xia
- College of Animal Science, Jilin University, Changchun, China
| | - Linlin Hao
- College of Animal Science, Jilin University, Changchun, China
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Alkafaji HA, Raji A, Rahman HS, Zekiy AO, Adili A, Jalili M, Hojjatipour T, Cid‐Arregui A, Shomali N, Tarzi S, Tamjidifar R, Heshmati R, Marofi F, Akbari M, Hasanzadeh A, Deljavanghodrati M, Jarahian M, Sandoghchian Shotorbani S. Up-regulation of KISS1 as a novel target of Let-7i in melanoma serves as a potential suppressor of migration and proliferation in vitro. J Cell Mol Med 2021; 25:6864-6873. [PMID: 34096173 PMCID: PMC8278109 DOI: 10.1111/jcmm.16695] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/29/2021] [Accepted: 05/17/2021] [Indexed: 12/12/2022] Open
Abstract
Melanoma is a kind of skin cancer that is begun by the alteration of melanocytes. miRNAs are small non-coding RNA molecules that regulate a variety of biological processes. KISS1, the metastasis-suppressor gene, encodes kisspeptins which inhibits migration and proliferation of cancers. This study was aimed to determine the role of Let-7i and KISS1 in melanoma cell migration and proliferation. At first, the expression of Let-7i and KISS1 was determined in patients with melanoma. In the in vitro part of the study, Let-7i mimics were transfected and the impact of its restoration on target gene expression, proliferation, migration and apoptosis of SK-MEL-3 melanoma cell line was assessed by real-time PCR and Western blotting, MTT assay, wound-healing assay and flow cytometry, respectively. Besides, KISS1 inhibitor siRNA alone and along with Let-7i was transfected to determine their probable correlation. The results revealed that either Let-7i or KISS1 were down-regulated in patients with melanoma. The results obtained from the in vitro part of the study revealed that restoration of Let-7i reduced the expression of metastasis- and proliferation-related target genes. Moreover, it was revealed that up-regulation of Let-7i attenuated migration and proliferation capability of SK-MEL-3 cells. Besides, it was demonstrated that Let-7i restoration induced apoptosis in melanoma cells. More importantly, the KISS1 inhibitor caused a prominent cell migration and proliferation, attenuated by Let-7i re-expression. To sum up, the present study revealed the impressive role of Let-7i restoration along with its correlation with KISS1 on melanoma carcinogenicity which may be applicable in future in vivo studies.
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Affiliation(s)
| | - Ahmed Raji
- College of medicineUniversity of BabylonBabylonIraq
| | - Heshu S. Rahman
- Department of PhysiologyCollege of MedicineUniversity of SuleimanyahSuleimanyahIraq
| | - Angelina O. Zekiy
- Sechenov First Moscow State Medical UniversityMoscowRussian Federation
| | - Ali Adili
- Department of OncologyTabriz University of Medical SciencesTabrizIran
| | | | - Tahereh Hojjatipour
- Department of Hematology and Blood TransfusionStudents Research CentreSchool of Allied MedicineTehran University of Medical SciencesTehranIran
| | - Angel Cid‐Arregui
- Targeted Tumor Vaccines UnitGerman Cancer Research Center (DKFZ)HeidelbergGermany
| | - Navid Shomali
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
- Department of ImmunologyTabriz University of Medical SciencesTabrizIran
| | - Saeed Tarzi
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
| | - Rozita Tamjidifar
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
| | - Ramin Heshmati
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
| | - Faroogh Marofi
- Department of ImmunologyTabriz University of Medical SciencesTabrizIran
| | - Morteza Akbari
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
| | - Ali Hasanzadeh
- Department of ImmunologyTabriz University of Medical SciencesTabrizIran
| | | | - Mostafa Jarahian
- Toxicology and Chemotherapy Unit (G401)German Cancer Research CenterHeidelbergGermany
| | - Siamak Sandoghchian Shotorbani
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
- Department of ImmunologyTabriz University of Medical SciencesTabrizIran
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11
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Contursi A, Arconzo M, Cariello M, Piglionica M, D’Amore S, Vacca M, Graziano G, Gadaleta RM, Valanzano R, Mariani-Costantini R, Villani G, Moschetta A, Piccinin E. let-7e downregulation characterizes early phase colonic adenoma in APCMin/+ mice and human FAP subjects. PLoS One 2021; 16:e0249238. [PMID: 33901189 PMCID: PMC8075207 DOI: 10.1371/journal.pone.0249238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
The crypt-villus axis represents the essential unit of the small intestine, which integrity and functions are fundamental to assure tissue and whole-body homeostasis. Disruption of pathways regulating the fine balance between proliferation and differentiation results in diseases development. Nowadays, it is well established that microRNAs (miRNAs) play a crucial role in the homeostasis maintenance and perturbation of their levels may promote tumor development. Here, by using microarray technology, we analysed the miRNAs differentially expressed between the crypt and the villus in mice ileum. The emerged miRNAs were further validated by Real Time qPCR in mouse model (ApcMin/+), human cell lines and human tissue samples (FAP) of colorectal cancer (CRC). Our results indicated that miRNAs more expressed in the villi compartment are negatively regulated in tumor specimens, thus suggesting a close association between these microRNAs and the differentiation process. Particularly, from our analysis let-7e appeared to be a promising target for possible future therapies and a valuable marker for tumor staging, being upregulated in differentiated cells and downregulated in early-stage colonic adenoma samples.
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Affiliation(s)
- Annalisa Contursi
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
- Fondazione Mario Negri Sud, Santa Maria Imbaro (CH), Italy
| | - Maria Arconzo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
- INBB, National Institute for Biostructures and Biosystems, Rome, Italy
| | - Marica Cariello
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
- INBB, National Institute for Biostructures and Biosystems, Rome, Italy
| | - Marilidia Piglionica
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
- Department of Biomedical Sciences and Human Oncology (DIMO), Medical Genetics, University of Bari "Aldo Moro", Bari, Italy
| | - Simona D’Amore
- Fondazione Mario Negri Sud, Santa Maria Imbaro (CH), Italy
| | - Michele Vacca
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
| | - Giusi Graziano
- INBB, National Institute for Biostructures and Biosystems, Rome, Italy
| | | | - Rosa Valanzano
- Department of Clinical Physiopathology, University of Florence, Florence, Italy
| | - Renato Mariani-Costantini
- Center for Advanced Studies and Technology (C.A.S.T.), University “G. d’Annunzio”, Chieti-Pescara, Chieti, Italy
| | - Gaetano Villani
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
| | - Antonio Moschetta
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
- INBB, National Institute for Biostructures and Biosystems, Rome, Italy
| | - Elena Piccinin
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari, Italy
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
- * E-mail:
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12
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O'Connor S, Murphy EA, Szwed SK, Kanke M, Marchildon F, Sethupathy P, Darnell RB, Cohen P. AGO HITS-CLIP reveals distinct miRNA regulation of white and brown adipose tissue identity. Genes Dev 2021; 35:771-781. [PMID: 33832988 PMCID: PMC8091975 DOI: 10.1101/gad.345447.120] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRNAs) are short, noncoding RNAs that associate with Argonaute (AGO) to influence mRNA stability and translation, thereby regulating cellular determination and phenotype. While several individual miRNAs have been shown to control adipocyte function, including energy storage in white fat and energy dissipation in brown fat, a comprehensive analysis of miRNA activity in these tissues has not been performed. We used high-throughput sequencing of RNA isolated by cross-linking immunoprecipitation (HITS-CLIP) to comprehensively characterize the network of high-confidence, in vivo mRNA:miRNA interactions across white and brown fat, revealing >20,000 unique AGO binding sites. When coupled with miRNA and mRNA sequencing, we found an inverse correlation between depot-enriched miRNAs and their targets. To illustrate the functionality of our HITS-CLIP data set in identifying specific miRNA:mRNA interactions, we show that miR-29 is a novel regulator of leptin, an adipocyte-derived hormone that coordinates food intake and energy homeostasis. Two independent miR-29 binding sites in the leptin 3' UTR were validated using luciferase assays, and miR-29 gain and loss of function modulated leptin mRNA and protein secretion in primary adipocytes. This work represents the only experimentally generated miRNA targetome in adipose tissue and identifies multiple regulatory pathways that may specify the unique identities of white and brown fat.
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Affiliation(s)
- Sean O'Connor
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York 10065, USA
| | - Elisabeth A Murphy
- Laboratory of Molecular Neuro-Oncology, The Rockefeller University, New York, New York 10065, USA
| | - Sarah K Szwed
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York 10065, USA.,Weill-Cornell/Rockefeller/Sloan Kettering Tri-Institutional MD-PhD Program, New York, New York 10065, USA
| | - Matt Kanke
- Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853, USA
| | - François Marchildon
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York 10065, USA
| | - Praveen Sethupathy
- Department of Biomedical Sciences, Cornell University, Ithaca, New York 14853, USA
| | - Robert B Darnell
- Laboratory of Molecular Neuro-Oncology, The Rockefeller University, New York, New York 10065, USA
| | - Paul Cohen
- Laboratory of Molecular Metabolism, The Rockefeller University, New York, New York 10065, USA
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13
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Rezapour-Lactoee A, Yeganeh H, Gharibi R, Milan PB. Enhanced healing of a full-thickness wound by a thermoresponsive dressing utilized for simultaneous transfer and protection of adipose-derived mesenchymal stem cells sheet. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:101. [PMID: 33140201 DOI: 10.1007/s10856-020-06433-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
To boost the healing process in a full-thickness wound, a simple and efficient strategy based on adipose-derived mesenchymal stem cells (ADSCs) transplantation is described in this work. To increase the chance of ADSCs immobilization in the wound bed and prevent its migration, these cells are fully grown on the surface of a thermoresponsive dressing membrane under in vitro condition. Then, the cells sheet with their secreted extracellular matrix (ECM) is transferred to the damaged skin with the help of this dressing membrane. This membrane remains on wound bed and acts both as a cell sheet transfer vehicle, after external reduction of temperature, and protect wound during the healing process like a common wound dressing. The visual inspection of wounded skin (rat animal model) at selected time intervals shows a higher wound closure rate for ADSCs treated group. For this group of rats, the better quality of reconstructed tissue is approved by results of histological and immunohistochemical analysis since the higher length of the new epidermis, the higher thickness of re-epithelialization layer, a higher level of neovascularization and capillary density, and the least collagen deposition are detected in the healed tissue.
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Affiliation(s)
- Alireza Rezapour-Lactoee
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
- Department of Tissue Engineering, School of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Hamid Yeganeh
- Iran Polymer and Petrochemical Institute, Tehran, P.O. Box:14965/115, Iran.
| | - Reza Gharibi
- Faculty of Chemistry, Kharazmi University, Tehran, Iran
| | - Peiman Brouki Milan
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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14
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Murach KA, Vechetti IJ, Van Pelt DW, Crow SE, Dungan CM, Figueiredo VC, Kosmac K, Fu X, Richards CI, Fry CS, McCarthy JJ, Peterson CA. Fusion-Independent Satellite Cell Communication to Muscle Fibers During Load-Induced Hypertrophy. FUNCTION 2020; 1:zqaa009. [PMID: 32864621 PMCID: PMC7448100 DOI: 10.1093/function/zqaa009] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/29/2020] [Accepted: 06/29/2020] [Indexed: 01/06/2023] Open
Abstract
The "canonical" function of Pax7+ muscle stem cells (satellite cells) during hypertrophic growth of adult muscle fibers is myonuclear donation via fusion to support increased transcriptional output. In recent years, however, emerging evidence suggests that satellite cells play an important secretory role in promoting load-mediated growth. Utilizing genetically modified mouse models of delayed satellite cell fusion and in vivo extracellular vesicle (EV) tracking, we provide evidence for satellite cell communication to muscle fibers during hypertrophy. Myogenic progenitor cell-EV-mediated communication to myotubes in vitro influences extracellular matrix (ECM)-related gene expression, which is congruent with in vivo overload experiments involving satellite cell depletion, as well as in silico analyses. Satellite cell-derived EVs can transfer a Cre-induced, cytoplasmic-localized fluorescent reporter to muscle cells as well as microRNAs that regulate ECM genes such as matrix metalloproteinase 9 (Mmp9), which may facilitate growth. Delayed satellite cell fusion did not limit long-term load-induced muscle hypertrophy indicating that early fusion-independent communication from satellite cells to muscle fibers is an underappreciated aspect of satellite cell biology. We cannot exclude the possibility that satellite cell-mediated myonuclear accretion is necessary to maintain prolonged growth, specifically in the later phases of adaptation, but these data collectively highlight how EV delivery from satellite cells can directly contribute to mechanical load-induced muscle fiber hypertrophy, independent of cell fusion to the fiber.
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Affiliation(s)
- Kevin A Murach
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Ivan J Vechetti
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Douglas W Van Pelt
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Samuel E Crow
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Cory M Dungan
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Vandre C Figueiredo
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Kate Kosmac
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Xu Fu
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Christopher I Richards
- Department of Chemistry, College of Arts and Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Christopher S Fry
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Athletic Training and Clinical Nutrition, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - John J McCarthy
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Charlotte A Peterson
- The Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
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15
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Nieto-Nicolau N, Martín-Antonio B, Müller-Sánchez C, Casaroli-Marano RP. In vitro potential of human mesenchymal stem cells for corneal epithelial regeneration. Regen Med 2020; 15:1409-1426. [PMID: 32352350 DOI: 10.2217/rme-2019-0067] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: To determine the potential of mesenchymal stem cells (MSC) for corneal epithelial regeneration in vitro. Materials & methods: Bone marrow MSC (BM-MSC) and adipose tissue MSC were analyzed for corneal epithelial and mesenchymal markers, using limbal stem cells and corneal cells as controls. MSC with better potential were cultured with specific mediums for epithelial induction. Transepithelial electric resistance and wound healing assay with human corneal epithelial cells were performed. Results: BM-MSC showed better potential, increased corneal markers, and higher transepithelial electric resistance values when induced with limbal epithelial culture medium. Induced BM-MSC promoted better wound healing of human corneal epithelial cells by paracrine secretion. Conclusion: BM-MSC has potential for corneal epithelial induction in a protocol compatible with human application.
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Affiliation(s)
| | | | | | - Ricardo P Casaroli-Marano
- Barcelona Tissue Bank, Banc de Sang I Teixits (BST), Barcelona, Spain.,Department of Surgery, School of Medicine & Hospital Clinic de Barcelona, University of Barcelona, Barcelona, Spain.,Institute of Biomedical Research Sant Pau (IIB-Sant Pau), Barcelona, Spain
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16
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Zhao Y, Zhao MF, Jiang S, Wu J, Liu J, Yuan XW, Shen D, Zhang JZ, Zhou N, He J, Fang L, Sun XT, Xue B, Li CJ. Liver governs adipose remodelling via extracellular vesicles in response to lipid overload. Nat Commun 2020; 11:719. [PMID: 32024826 PMCID: PMC7002740 DOI: 10.1038/s41467-020-14450-6] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/09/2020] [Indexed: 12/24/2022] Open
Abstract
Lipid overload results in lipid redistribution among metabolic organs such as liver, adipose, and muscle; therefore, the interplay between liver and other organs is important to maintain lipid homeostasis. Here, we show that liver responds to lipid overload first and sends hepatocyte-derived extracellular vesicles (EVs) targeting adipocytes to regulate adipogenesis and lipogenesis. Geranylgeranyl diphosphate synthase (Ggpps) expression in liver is enhanced by lipid overload and regulates EV secretion through Rab27A geranylgeranylation. Consistently, liver-specific Ggpps deficient mice have reduced fat adipose deposition. The levels of several EV-derived miRNAs in the plasma of non-alcoholic fatty liver disease (NAFLD) patients are positively correlated with body mass index (BMI), and these miRNAs enhance adipocyte lipid accumulation. Thus, we highlight an inter-organ mechanism whereby the liver senses different metabolic states and sends corresponding signals to remodel adipose tissue to adapt to metabolic changes in response to lipid overload.
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Affiliation(s)
- Yue Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China.,MOE Key Laboratory of Model Animals for Disease Study, Department of Hepatobiliary Surgery & Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210093, China
| | - Meng-Fei Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China
| | - Shan Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China
| | - Jing Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China.,Core Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing, 211166, China
| | - Jia Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China
| | - Xian-Wen Yuan
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China.,MOE Key Laboratory of Model Animals for Disease Study, Department of Hepatobiliary Surgery & Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210093, China
| | - Di Shen
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China
| | - Jing-Zi Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China
| | - Nan Zhou
- MOE Key Laboratory of Model Animals for Disease Study, Department of Hepatobiliary Surgery & Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210093, China
| | - Jian He
- MOE Key Laboratory of Model Animals for Disease Study, Department of Hepatobiliary Surgery & Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210093, China
| | - Lei Fang
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China. .,MOE Key Laboratory of Model Animals for Disease Study, Department of Hepatobiliary Surgery & Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210093, China.
| | - Xi-Tai Sun
- MOE Key Laboratory of Model Animals for Disease Study, Department of Hepatobiliary Surgery & Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210093, China.
| | - Bin Xue
- Core Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing, 211166, China. .,State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China.
| | - Chao-Jun Li
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, 210093, China. .,MOE Key Laboratory of Model Animals for Disease Study, Department of Hepatobiliary Surgery & Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210093, China.
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17
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Onuzulu CD, Rotimi OA, Rotimi SO. Epigenetic modifications associated with in utero exposure to endocrine disrupting chemicals BPA, DDT and Pb. REVIEWS ON ENVIRONMENTAL HEALTH 2019; 34:309-325. [PMID: 31271561 DOI: 10.1515/reveh-2018-0059] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are xenobiotics which adversely modify the hormone system. The endocrine system is most vulnerable to assaults by endocrine disruptors during the prenatal and early development window, and effects may persist into adulthood and across generations. The prenatal stage is a period of vulnerability to environmental chemicals because the epigenome is usually reprogrammed during this period. Bisphenol A (BPA), lead (Pb), and dichlorodiphenyltrichloroethane (DDT) were chosen for critical review because they have become serious public health concerns globally, especially in Africa where they are widely used without any regulation. In this review, we introduce EDCs and describe the various modes of action of EDCs and the importance of the prenatal and developmental windows to EDC exposure. We give a brief overview of epigenetics and describe the various epigenetic mechanisms: DNA methylation, histone modifications and non-coding RNAs, and how each of them affects gene expression. We then summarize findings from previous studies on the effects of prenatal exposure to the endocrine disruptors BPA, Pb and DDT on each of the previously described epigenetic mechanisms. We also discuss how the epigenetic alterations caused by these EDCs may be related to disease processes.
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Affiliation(s)
- Chinonye Doris Onuzulu
- Department of Biochemistry and Molecular Biology Research Laboratory, Covenant University, Ota, Ogun State, Nigeria
| | - Oluwakemi Anuoluwapo Rotimi
- Department of Biochemistry and Molecular Biology Research Laboratory, Covenant University, Ota, Ogun State, Nigeria
| | - Solomon Oladapo Rotimi
- Department of Biochemistry and Molecular Biology Research Laboratory, Covenant University, Ota, Ogun State, Nigeria
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18
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Zhang Z, Zou G, Chen X, Lu W, Liu J, Zhai S, Qiao G. Knockdown of lncRNA PVT1 Inhibits Vascular Smooth Muscle Cell Apoptosis and Extracellular Matrix Disruption in a Murine Abdominal Aortic Aneurysm Model. Mol Cells 2019; 42:218-227. [PMID: 30726659 PMCID: PMC6449717 DOI: 10.14348/molcells.2018.0162] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 10/08/2018] [Accepted: 10/15/2018] [Indexed: 01/08/2023] Open
Abstract
This study was designed to determine the effects of the long non-coding RNA (lncRNA) plasmacytoma variant translocation 1 (PVT1) on vascular smooth muscle cell (VSMC) apoptosis and extracellular matrix (ECM) disruption in a murine abdominal aortic aneurysm (AAA) model. After injection of PVT1-silencing lentiviruses, AAA was induced in Apolipoprotein E-deficient (ApoE-/-) male mice by angiotensin II (Ang II) infusion for four weeks. After Ang II infusion, mouse serum levels of pro-inflammatory cytokines were analysed, and aortic tissues were isolated for histological, RNA, and protein analysis. Our results also showed that PVT1 expression was significantly upregulated in abdominal aortic tissues from AAA patients compared with that in controls. Additionally, Ang II treatment significantly increased PVT1 expression, both in cultured mouse VSMCs and in AAA murine abdominal aortic tissues. Of note, the effects of Ang II in facilitating cell apoptosis, increasing matrix metalloproteinase (MMP)-2 and MMP-9, reducing tissue inhibitor of MMP (TIMP)-1, and promoting switching from the contractile to synthetic phenotype in cultured VSMCs were enhanced by overexpression of PVT1 but attenuated by knockdown of PVT1. Furthermore, knockdown of PVT1 reversed Ang II-induced AAA-associated alterations in mice, as evidenced by attenuation of aortic diameter dilation, marked adventitial thickening, loss of elastin in the aorta, enhanced aortic cell apoptosis, elevated MMP-2 and MMP-9, reduced TIMP-1, and increased pro-inflammatory cytokines. In conclusion, our findings demonstrate that knockdown of lncRNA PVT1 suppresses VSMC apoptosis, ECM disruption, and serum pro-inflammatory cytokines in a murine Ang II-induced AAA model.
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MESH Headings
- Aged
- Aged, 80 and over
- Angiotensin II/pharmacology
- Animals
- Aortic Aneurysm, Abdominal/genetics
- Aortic Aneurysm, Abdominal/pathology
- Apolipoproteins E/deficiency
- Apoptosis/drug effects
- Disease Models, Animal
- Extracellular Matrix/metabolism
- Gene Knockdown Techniques
- Humans
- Inflammation/pathology
- Mice
- Middle Aged
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- RNA, Small Interfering/metabolism
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Affiliation(s)
- Zhidong Zhang
- Department of Vascular and Endovascular Surgery, Henan Provincial People’s Hospital, Henan,
China
- Department of Aortic Surgery, Fuwai Central China Cardiovascular Hospital, Henan,
China
| | - Gangqiang Zou
- Department of Vascular and Endovascular Surgery, Henan Provincial People’s Hospital, Henan,
China
- Department of Aortic Surgery, Fuwai Central China Cardiovascular Hospital, Henan,
China
| | - Xiaosan Chen
- Department of Vascular and Endovascular Surgery, Henan Provincial People’s Hospital, Henan,
China
- Department of Aortic Surgery, Fuwai Central China Cardiovascular Hospital, Henan,
China
| | - Wei Lu
- Department of Vascular and Endovascular Surgery, Henan Provincial People’s Hospital, Henan,
China
- Department of Aortic Surgery, Fuwai Central China Cardiovascular Hospital, Henan,
China
| | - Jianyang Liu
- Department of Vascular and Endovascular Surgery, Henan Provincial People’s Hospital, Henan,
China
- Department of Aortic Surgery, Fuwai Central China Cardiovascular Hospital, Henan,
China
| | - Shuiting Zhai
- Department of Vascular and Endovascular Surgery, Henan Provincial People’s Hospital, Henan,
China
- Department of Vascular and Endovascular Surgery, Fuwai Central China Cardiovascular Hospital, Henan,
China
| | - Gang Qiao
- Department of Vascular and Endovascular Surgery, Henan Provincial People’s Hospital, Henan,
China
- Department of Aortic Surgery, Fuwai Central China Cardiovascular Hospital, Henan,
China
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19
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Guo J, Zeng X, Miao J, Liu C, Wei F, Liu D, Zheng Z, Ting K, Wang C, Liu Y. MiRNA-218 regulates osteoclast differentiation and inflammation response in periodontitis rats through Mmp9. Cell Microbiol 2019; 21:e12979. [PMID: 30444938 DOI: 10.1111/cmi.12979] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/06/2018] [Accepted: 11/01/2018] [Indexed: 01/11/2023]
Abstract
Periodontitis is a multiple infection and inflammatory disease featured by connective tissue homeostasis loss, periodontal inflammation, and alveolar bone resorption. MicroRNAs (miRNAs) are involved in the mediation of a large scale of pathological processes. Here, we show that miRNA-218 provides protective effect on periodontitis via regulation of matrix metalloproteinase-9 (Mmp9). This pathway is aberrant in periodontium from rats with periodontitis and human periodontal ligament progenitor cells stimulated by lipopolysaccharide, with downregulation of miR-218 and higher levels of Mmp9 compared with periodontium from healthy rats and cells without stimulation. Overexpression of miR-218 can suppress the degradation of Collagen Types I and IV and dentin sialoprotein (DSP), attenuate osteoclast formation, and inhibit the secretion of proinflammatory cytokines. On the other hand, overexpression of Mmp9 promotes the degradation of Collagen Types I and IV and DSP as well as RANKL-induced osteoclast formation and elevates inflammatory factors levels. Furthermore, the inhibitory effect of miR-218 was prevented by rescuing the Mmp9 expression. In addition, we also have showed that miR-218 was able to attenuate bone resorption and inflammation in a periodontitis rat model. Collectively, our findings therefore suggest that miR-218 acts as a protective role in periodontitis through the regulation of Mmp9.
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Affiliation(s)
- Jie Guo
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Xuemin Zeng
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Jie Miao
- Department of Stomatology, The 5th People's Hospital of Ji'nan, Jinan, China
| | - Chunpeng Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Fulan Wei
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Dongxu Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Zhong Zheng
- Department of Orthodontics, Division of Growth and Development, School of Dentistry, University of California, Los Angeles, CA, USA.,UCLA Division of Plastic and Reconstructive Surgery and Department of Orthopaedic Surgery and the Orthopaedic Hospital Research Center, University of California, Los Angeles, CA, USA
| | - Kang Ting
- Department of Orthodontics, Division of Growth and Development, School of Dentistry, University of California, Los Angeles, CA, USA.,UCLA Division of Plastic and Reconstructive Surgery and Department of Orthopaedic Surgery and the Orthopaedic Hospital Research Center, University of California, Los Angeles, CA, USA
| | - Chunling Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
| | - Yi Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, China.,Department of Orthodontics, School of Stomatology, Shandong University, Jinan, China
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20
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Comprehensive analysis of damage associated SNPs of MMP9 gene: A computational approach. Comput Biol Chem 2018; 77:97-108. [PMID: 30248431 DOI: 10.1016/j.compbiolchem.2018.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 08/18/2018] [Accepted: 09/12/2018] [Indexed: 11/21/2022]
Abstract
Extracellular matrix is a dynamic meshwork of macromolecules that plays an important role in biological processes such as tissue remodeling and various developmental processes. Collagen is the chief component of ECM. Upon hydrolysis, it forms an irreversible left-handed helical structure which is further hydrolyzed by a specialized group of MMP family i.e. Gelatinases (MMP2 and MMP9). Present study was carried to figure out deleterious SNPs associated with MMP9 gene. Our results showed that two nsSNP (rs8125581 and rs41529445) that are present in catalytic domain are highly conserved and affect the protein structure and function.7 SNPs located in UTRs were found to alter miRNA seed region 13 SNPs of splice site were predicted to affect splice signals thereby affecting the post translational expression of MMP9. Most of the SNPs are still uncharacterized thereby present study provides a direction that can help to validate the relation between the altered expressions and functions of MMP9 protein in terms of disease susceptibility.
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21
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Kowara M, Cudnoch-Jedrzejewska A, Opolski G, Wlodarski P. MicroRNA regulation of extracellular matrix components in the process of atherosclerotic plaque destabilization. Clin Exp Pharmacol Physiol 2018; 44:711-718. [PMID: 28440887 DOI: 10.1111/1440-1681.12772] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 03/23/2017] [Accepted: 04/19/2017] [Indexed: 12/13/2022]
Abstract
The process of atherosclerotic plaque destabilization, leading to myocardial infarction, is still not fully understood. The pathway - composed of structural and regulatory proteins of the extracellular matrix (ECM) such as collagen, elastin, small leucine-rich proteoglycans, metalloproteinases, cathepsins and serine proteases - is one potential way of atherosclerotic plaque destabilization. The expression of these proteins is controlled by different microRNA molecules. The goal of this paper is to summarize the current investigations and knowledge about ECM in the process of atherosclerotic plaque destabilization, giving special attention to epigenetic expression regulation by microRNA.
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Affiliation(s)
- Michal Kowara
- Department of Experimental and Clinical Physiology, Laboratory of Center for Preclinical Research, Medical University of Warsaw, Warsaw, Poland.,First Department of Cardiology, Medical University of Warsaw, Warsaw, Poland
| | - Agnieszka Cudnoch-Jedrzejewska
- Department of Experimental and Clinical Physiology, Laboratory of Center for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
| | - Grzegorz Opolski
- First Department of Cardiology, Medical University of Warsaw, Warsaw, Poland
| | - Pawel Wlodarski
- Department of Histology and Embryology, Center for Biostructure Research, Laboratory of Center for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
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22
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Sola A, Saenz Del Burgo L, Ciriza J, Hernandez RM, Orive G, Martin Cordero J, Calle P, Pedraz JL, Hotter G. Microencapsulated macrophages releases conditioned medium able to prevent epithelial to mesenchymal transition. Drug Deliv 2017; 25:91-101. [PMID: 29250977 PMCID: PMC6058712 DOI: 10.1080/10717544.2017.1413449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Epithelial to mesenchymal transition (EMT) has emerged as a key process in the development of renal fibrosis. In fact, EMT-derived fibroblasts contribute to the progression of chronic renal disease. In addition, anti-inflammatory M2 macrophages have exhibited a great influence on renal fibrosis. However, because of the high impact that the inputs of different environmental cytokines have on their phenotype, macrophages can easily lose this property. We aim to known if microencapsulated macrophages on M2-inducing alginate matrices could preserve macrophage phenotype and thus release factors able to act on epithelial cells to prevent the epithelial differentiation towards mesenchymal cells. We reproduced an in vitro model of EMT by treating adipose-derived stem cells with all-trans retinoic acid (ATRA) and induced their transformation toward epithelia. Dedifferentiation of epithelial cells into a mesenchymal phenotype occurred when ATRA was retired, thus simulating EMT. Results indicate that induction of M2 phenotype by IL-10 addition in the alginate matrix produces anti-inflammatory cytokines and increases the metabolic activity and the viability of the encapsulated macrophages. The released conditioned medium modulates EMT and maintains healthy epithelial phenotype. This could be used for in vivo cell transplantation, or alternatively as an external releaser able to prevent epithelial to mesenchymal transformation for future anti-fibrotic therapies.
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Affiliation(s)
- Anna Sola
- a Biomedical Research Networking Center in Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , Barcelona , Spain
| | - Laura Saenz Del Burgo
- a Biomedical Research Networking Center in Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , Barcelona , Spain.,b NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy , University of the Basque Country (UPV/EHU) , Vitoria-Gasteiz , Spain
| | - Jesús Ciriza
- a Biomedical Research Networking Center in Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , Barcelona , Spain.,b NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy , University of the Basque Country (UPV/EHU) , Vitoria-Gasteiz , Spain
| | - Rosa Maria Hernandez
- a Biomedical Research Networking Center in Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , Barcelona , Spain.,b NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy , University of the Basque Country (UPV/EHU) , Vitoria-Gasteiz , Spain
| | - Gorka Orive
- a Biomedical Research Networking Center in Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , Barcelona , Spain.,b NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy , University of the Basque Country (UPV/EHU) , Vitoria-Gasteiz , Spain
| | - Jorge Martin Cordero
- c Department of Experimental Pathology , Instituto de Investigaciones Biomédicas de Barcelona, Spanish Research Council (IIBB-CSIC, IDIBAPS) , Barcelona , Spain
| | - Priscila Calle
- c Department of Experimental Pathology , Instituto de Investigaciones Biomédicas de Barcelona, Spanish Research Council (IIBB-CSIC, IDIBAPS) , Barcelona , Spain
| | - Jose Luis Pedraz
- a Biomedical Research Networking Center in Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , Barcelona , Spain.,b NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy , University of the Basque Country (UPV/EHU) , Vitoria-Gasteiz , Spain
| | - Georgina Hotter
- a Biomedical Research Networking Center in Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , Barcelona , Spain.,c Department of Experimental Pathology , Instituto de Investigaciones Biomédicas de Barcelona, Spanish Research Council (IIBB-CSIC, IDIBAPS) , Barcelona , Spain
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23
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Zhou L, Feng Y, Dai J, Ouyang J. [Research progress of miRNA regulation in differentiation of adipose-derived stem cells]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2017; 31:1506-1511. [PMID: 29806396 DOI: 10.7507/1002-1892.201706076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Objective To review the research progress of miRNA regulation in the differentiation of adipose-derived stem cells (ADSCs). Methods The recent literature associated with miRNAs and differentiation of ADSCs was reviewed. The regulatory mechanism was analyzed in detail and summarized. Results The results indicate that the expression of miRNAs changes during differentiation of ADSCs. In addition, miRNAs regulate the differentiation of ADSCs into adipocytes, osteoblasts, chondrocytes, neurons, and hepatocytes by regulating the signaling pathways involved in cell differentiation. Conclusion Through controlling the differentiation of ADSCs by miRNAs, the suitable seed cell for tissue engineering can be established. The review will provide a theoretical basis for molecular targeted therapy and stem cell therapy in clinic.
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Affiliation(s)
- Lanting Zhou
- Medical College, Hubei University of Arts and Science, Xiangyang Hubei, 441053, P.R.China;Department of Anatomy, Southern Medical University, Guangzhou Guangdong, 510515, P.R.China
| | - Yanting Feng
- Department of Anatomy, Southern Medical University, Guangzhou Guangdong, 510515, P.R.China
| | - Jingxing Dai
- Department of Anatomy, Southern Medical University, Guangzhou Guangdong, 510515, P.R.China
| | - Jun Ouyang
- Department of Anatomy, Southern Medical University, Guangzhou Guangdong, 510515,
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24
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Fan G, Xu Z, Hu X, Li M, Zhou J, Zeng Y, Xie Y. miR-33a hinders the differentiation of adipose mesenchymal stem cells towards urothelial cells in an inductive condition by targeting β‑catenin and TGFR. Mol Med Rep 2017; 17:2341-2348. [PMID: 29207162 PMCID: PMC5783476 DOI: 10.3892/mmr.2017.8168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 11/16/2017] [Indexed: 11/08/2022] Open
Abstract
Tissue engineering technology offers an appealing approach for tissue reconstruction of the urothelium. Adipose-derived mesenchymal stem cells (ADSCs) represent an abundant source for tissue engineering applications. However, ASCs primarily possess mesoderm lineage differentiation potential. It is difficult to induce differentiation of ASCs towards urothelial cells that are derived from the endoderm, although a recent findings have reported that a conditioned medium may drive ADSCs towards differentiation into the urothelium phenotype. In the present study, human ADSCs were isolated from abdominal adipose tissues and incubated in this conditioned medium for indicated time periods. Western blotting showed that protein expression levels of urothelial specific marks, including CK7, CK20 and UPIII, were increased after seven days' incubation, but immunofluorescence microscopy determined that cells with CK7 and UPIII staining were scarce, which suggested a low-efficiency for the differentiation. Prolonging the incubation time did not further increase CK20 and UPIII expression. Furthermore, miR-33a expression was increased with ADSC differentiation. Using synthetic miRNAs to mimic or inhibit the action of miR-33a revealed that miR-33a hinders the differentiation of ADSCs towards urothelial cells. Furthermore, luciferase reporter assay confirmed that β-catenin and transforming growth factor-β receptor (TGFR) are targets of miR-33a. Inhibition of miR-33a expression increased β-catenin and TGFR expression and improved the efficiency of ADSCs towards differentiation into the urothelium phenotype. The present novel finding suggests that miR-33 may be an important target in tissue engineering and regenerative medicine for urothelium repair.
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Affiliation(s)
- Gang Fan
- Department of Urology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya Medical College, Central South University, Changsha, Hunan 410013, P.R. China
| | - Zhenzhou Xu
- Department of Urology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya Medical College, Central South University, Changsha, Hunan 410013, P.R. China
| | - Xiang Hu
- School of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Mingfeng Li
- Department of Urology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya Medical College, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jie Zhou
- Department of Urology, The First Affiliated Hospital of Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Yong Zeng
- Department of Clinical Translational Research Center, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya Medical College, Central South University, Changsha, Hunan 410013, P.R. China
| | - Yu Xie
- Department of Urology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya Medical College, Central South University, Changsha, Hunan 410013, P.R. China
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25
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Xiao M, Cai J, Cai L, Jia J, Xie L, Zhu Y, Huang B, Jin D, Wang Z. Let-7e sensitizes epithelial ovarian cancer to cisplatin through repressing DNA double strand break repair. J Ovarian Res 2017; 10:24. [PMID: 28376831 PMCID: PMC5379542 DOI: 10.1186/s13048-017-0321-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 03/28/2017] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Resistance to platinum-based chemotherapy remains a great challenge for ovarian cancer treatment. The human let-7 family contains 13 members located on nine different chromosomes, and most members have been implicated in the modulation of drug sensitivity in cancers. Our previous study showed that deregulation of let-7e in epithelial ovarian cancer (EOC) promoted the development of resistance to cisplatin. In the present study, we aimed to investigate the underlying mechanism and further evaluate the clinical value of let-7e in predicting chemo-response and prognosis in EOC. RESULTS In situ hybridization assays revealed a significantly decreased expression of let-7e in chemo-resistant EOC tissues compared with chemo-sensitive cases. Transfection with let-7e agomir sensitized EOC cells to cisplatin, down-regulated BRCA1 and Rad51 expression, and repressed the repair of cisplatin-induced DNA double strand break, while let-7e inhibitor exerted the opposite effects. In human EOC tissues, BRCA1 and Rad51 levels were increased in the chemo-resistant group compared with the sensitive group and were negatively correlated with let-7e. Low let-7e and high Rad51 were significantly associated with poor progression-free survival and overall survival and multivariate regression analyses showed that let-7e was an independent predictor for overall survival and chemotherapy response in EOC. Receiver operating characteristic analysis indicated that let-7e level was highly predictive of resistance to platinum-taxane chemotherapy with an area under the curve of 0.826. CONCLUSIONS In EOC, low let-7e leads to activation of BRCA1 and Rad51 expression and subsequent enhancement of DSB repair, which in turn results in cisplatin-resistance. Let-7e is a potential predictor for survival and chemo-response in EOC and re-expression of let-7e might be an effective strategy for overcoming chemo-resistance.
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Affiliation(s)
- Man Xiao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Jing Cai
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Liqiong Cai
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Jinghui Jia
- Department of Obstetrics and Gynecology, Air Force General Hospital, PLA, Beijing, 100142, China
| | - Lisha Xie
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Ying Zhu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Bangxing Huang
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Dongdong Jin
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Zehua Wang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China.
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26
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Wen L, Andersen PK, Husum DMU, Nørregaard R, Zhao Z, Liu Z, Birn H. MicroRNA-148b regulates megalin expression and is associated with receptor downregulation in mice with unilateral ureteral obstruction. Am J Physiol Renal Physiol 2017; 313:F210-F217. [PMID: 28331063 DOI: 10.1152/ajprenal.00585.2016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 03/02/2017] [Accepted: 03/16/2017] [Indexed: 11/22/2022] Open
Abstract
Megalin is a multiligand, endocytic receptor that is important for the normal, proximal tubule reabsorption of filtered proteins, hormones, enzymes, essential nutrients, and nephrotoxins. Megalin dysfunction has been associated with acute, as well as chronic kidney diseases. Tubular proteinuria has been observed following unilateral ureteral obstruction (UUO), suggesting megalin dysfunction; however, the pathophysiological mechanism has not been determined. To identify potential regulators of megalin expression, we examined renal microRNAs (miRNAs) expression and observed an upregulation of microRNA-148b (miR-148b) in obstructed mouse kidneys 7 days after UUO, which was associated with a significant reduction in proximal tubule megalin expression and accumulation of megalin ligands. By in silico miRNA target prediction analysis, we identified megalin messenger RNA (mRNA) as a potential target of miR-148b and confirmed using a dual-luciferase reporter assay that miR-148b targeted the 3'-untranslated region of the megalin gene. Transfection of LLC-PK1 cells with miR-148b mimic reduced endogenous megalin mRNA and protein levels in a concentration-dependent manner, while transfection with miR-148b inhibitor resulted in an increase. Our findings suggest that miR-148b directly downregulates megalin expression and that miR-148b negatively regulates megalin expression in UUO-induced kidney injury. Furthermore, the identification of a miRNA regulating megalin expression may allow for targeted interventions to modulate megalin function and proximal tubule uptake of proteins, as well as other ligands.
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Affiliation(s)
- Lu Wen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Nephrology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Pia K Andersen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Dina M U Husum
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; and
| | - Rikke Nørregaard
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; and
| | - Zhanzheng Zhao
- Department of Nephrology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhangsuo Liu
- Department of Nephrology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Henrik Birn
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; .,Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark
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27
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Jickling GC, Ander BP, Shroff N, Orantia M, Stamova B, Dykstra-Aiello C, Hull H, Zhan X, Liu D, Sharp FR. Leukocyte response is regulated by microRNA let7i in patients with acute ischemic stroke. Neurology 2016; 87:2198-2205. [PMID: 27784773 DOI: 10.1212/wnl.0000000000003354] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 08/15/2016] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE To evaluate microRNA let7i in ischemic stroke and its regulation of leukocytes. METHODS A total of 212 patients were studied: 106 with acute ischemic stroke and 106 controls matched for risk factors. RNA from circulating leukocytes was isolated from blood collected in PAXgene tubes. Let7i microRNA expression was assessed using TaqMan quantitative reverse transcription PCR. To assess let7i regulation of gene expression in stroke, messenger RNA (mRNA) from leukocytes was measured by whole-genome Human Transcriptome Array Affymetrix microarray. Given microRNAs act to destabilize and degrade their target mRNA, mRNAs that inversely correlated with let7i were identified. To demonstrate let7i posttranscriptional regulation of target genes, a 3' untranslated region luciferase assay was performed. Target protein expression was assessed using ELISA. RESULTS Let7i was decreased in patients with acute ischemic stroke (fold change -1.70, p < 0.00001). A modest inverse correlation between let7i and NIH Stroke Scale score at admission (r = -0.32, p = 0.02), infarct volume (r = -0.21, p = 0.04), and plasma MMP9 (r = -0.46, p = 0.01) was identified. The decrease in let7i was associated with increased expression of several of its mRNA targets, including CD86, CXCL8, and HMGB1. In vitro studies confirm let7i posttranscriptional regulation of target genes CD86, CXCL8, and HMGB1. Functional analysis predicted let7i regulates pathways involved in leukocyte activation, recruitment, and proliferation including canonical pathways of CD86 signaling in T helper cells, HMGB1 signaling, and CXCL8 signaling. CONCLUSIONS Let7i is decreased in circulating leukocytes of patients with acute ischemic stroke. Mechanisms by which let7i regulates inflammatory response post stroke include targeting CD86, CXCL8, and HMGB1.
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Affiliation(s)
- Glen C Jickling
- From the Department of Neurology, University of California at Davis, Sacramento.
| | - Bradley P Ander
- From the Department of Neurology, University of California at Davis, Sacramento
| | - Natasha Shroff
- From the Department of Neurology, University of California at Davis, Sacramento
| | - Miles Orantia
- From the Department of Neurology, University of California at Davis, Sacramento
| | - Boryana Stamova
- From the Department of Neurology, University of California at Davis, Sacramento
| | | | - Heather Hull
- From the Department of Neurology, University of California at Davis, Sacramento
| | - Xinhua Zhan
- From the Department of Neurology, University of California at Davis, Sacramento
| | - DaZhi Liu
- From the Department of Neurology, University of California at Davis, Sacramento
| | - Frank R Sharp
- From the Department of Neurology, University of California at Davis, Sacramento
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28
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Sun KH, Liu Z, Liu CJ, Yu T, Zhou M, Liu C, Ran F, Pan LJ, Zhang H. In vivostudy of alginate hydrogel conglutinating cells to polycaprolactone vascular scaffolds fabricated by electrospinning. J Biomed Mater Res B Appl Biomater 2016; 105:2443-2454. [PMID: 27654960 DOI: 10.1002/jbm.b.33731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 05/19/2016] [Accepted: 05/24/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Kwang-Hsiao Sun
- Department of Vascular Surgery; Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School; Nanjing People's Republic of China
| | - Zhao Liu
- Department of Vascular Surgery; Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School; Nanjing People's Republic of China
| | - Chang-Jian Liu
- Department of Vascular Surgery; Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School; Nanjing People's Republic of China
| | - Tong Yu
- Department of Vascular Surgery; Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School; Nanjing People's Republic of China
| | - Min Zhou
- Department of Vascular Surgery; Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School; Nanjing People's Republic of China
| | - Cheng Liu
- Department of Vascular Surgery; Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School; Nanjing People's Republic of China
| | - Feng Ran
- Department of Vascular Surgery; Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School; Nanjing People's Republic of China
| | - Li-Jia Pan
- Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials; Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University; Nanjing People's Republic of China
| | - Huan Zhang
- Centre for Individualised Medicine, Department of Pediatrics; Faculty of Medicine, Linköping University; Linköping Sweden
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29
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Gong W, Zheng J, Liu X, Ma J, Liu Y, Xue Y. Knockdown of NEAT1 restrained the malignant progression of glioma stem cells by activating microRNA let-7e. Oncotarget 2016; 7:62208-62223. [PMID: 27556696 PMCID: PMC5308721 DOI: 10.18632/oncotarget.11403] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 08/09/2016] [Indexed: 01/01/2023] Open
Abstract
Nuclear paraspeckle assembly transcript 1 (NEAT1), a long non-coding RNA, promotes oncogenesis in various tumors, including human gliomas. Herein, we studied the expression and function of NEAT1 in glioma stem cells (GSCs). Quantitative real-time PCR demonstrated that NEAT1 was upregulated in GSCs. NEAT1 knockdown inhibited GSC cell proliferation, migration and invasion and promoted GSC apoptosis. A potential binding region between NEAT1 and microRNA let-7e was confirmed by dual-luciferase assays. Upregulation of NEAT1 reduced the expression of let-7e, and there was reciprocal repression between NEAT1 and let-7e in an Argonaute 2-dependent manner. Let-7e expression was lower expression in glioblastoma tissues and GSCs than in normal brain tissues and cells. Restoration of let-7e suppressed tumor function by inhibiting proliferation, migration and invasion while promoting apoptosis in GSCs. NEAT1 knockdown and let-7e overexpression both reduced NRAS protein expression. NRAS was identified as a direct target of let-7e and promoted oncogenesis in GSCs. As NEAT1 promoted oncogenesis by downregulating let-7e expression, both of these genes could be considered for application in glioma therapy.
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Affiliation(s)
- Wei Gong
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang 110122, People's Republic of China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
- Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
- Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang 110122, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
- Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang 110122, People's Republic of China
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30
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Wang B, Yao K, Huuskes BM, Shen HH, Zhuang J, Godson C, Brennan EP, Wilkinson-Berka JL, Wise AF, Ricardo SD. Mesenchymal Stem Cells Deliver Exogenous MicroRNA-let7c via Exosomes to Attenuate Renal Fibrosis. Mol Ther 2016; 24:1290-301. [PMID: 27203438 DOI: 10.1038/mt.2016.90] [Citation(s) in RCA: 274] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 04/20/2016] [Indexed: 02/07/2023] Open
Abstract
The advancement of microRNA (miRNA) therapies has been hampered by difficulties in delivering miRNA to the injured kidney in a robust and sustainable manner. Using bioluminescence imaging in mice with unilateral ureteral obstruction (UUO), we report that mesenchymal stem cells (MSCs), engineered to overexpress miRNA-let7c (miR-let7c-MSCs), selectively homed to damaged kidneys and upregulated miR-let7c gene expression, compared with nontargeting control (NTC)-MSCs. miR-let7c-MSC therapy attenuated kidney injury and significantly downregulated collagen IVα1, metalloproteinase-9, transforming growth factor (TGF)-β1, and TGF-β type 1 receptor (TGF-βR1) in UUO kidneys, compared with controls. In vitro analysis confirmed that the transfer of miR-let7c from miR-let7c-MSCs occurred via secreted exosomal uptake, visualized in NRK52E cells using cyc3-labeled pre-miRNA-transfected MSCs with/without the exosomal inhibitor, GW4869. The upregulated expression of fibrotic genes in NRK52E cells induced by TGF-β1 was repressed following the addition of isolated exosomes or indirect coculture of miR-let7c-MSCs, compared with NTC-MSCs. Furthermore, the cotransfection of NRK52E cells using the 3'UTR of TGF-βR1 confirmed that miR-let7c attenuates TGF-β1-driven TGF-βR1 gene expression. Taken together, the effective antifibrotic function of engineered MSCs is able to selectively transfer miR-let7c to damaged kidney cells and will pave the way for the use of MSCs for therapeutic delivery of miRNA targeted at kidney disease.
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Affiliation(s)
- Bo Wang
- Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
| | - Kevin Yao
- Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
| | - Brooke M Huuskes
- Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
| | - Hsin-Hui Shen
- Department of Microbiology, Monash University, Victoria, Australia
| | - Junli Zhuang
- Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
| | - Catherine Godson
- Diabetes Complications Research Centre, Conway Institute and School of Medicine, University College Dublin, Dublin, Ireland
| | - Eoin P Brennan
- Diabetes Complications Research Centre, Conway Institute and School of Medicine, University College Dublin, Dublin, Ireland
| | | | - Andrea F Wise
- Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
| | - Sharon D Ricardo
- Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
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Flubendazole, FDA-approved anthelmintic, targets breast cancer stem-like cells. Oncotarget 2016; 6:6326-40. [PMID: 25811972 PMCID: PMC4467440 DOI: 10.18632/oncotarget.3436] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Accepted: 01/05/2015] [Indexed: 01/07/2023] Open
Abstract
Cancer stem-like cell (CS-like cell) is considered to be responsible for recurrence and drug resistance events in breast cancer, which makes it a potential target for novel cancer therapeutic strategy. The FDA approved flubendazole, has been widely used in the treatment of intestinal parasites. Here, we demonstrated a novel effect of flubendazole on breast CS-like cells. Flubendazole inhibited breast cancer cells proliferation in dose- and time-dependent manner and delayed tumor growth in xenograft models by intraperitoneal injection. Importantly, flubendazole reduced CD44high/CD24low subpopulation and suppressed the formation of mammosphere and the expression of self-renewal related genes including c-myc, oct4, sox2, nanog and cyclinD1. Moreover, we found that flubendazole induced cell differentiation and inhibited cell migration. Consistently, flubendazole reduced mesenchymal markers (β-catenin, N-cadherin and Vimentin) expression and induced epithelial and differentiation marker (Keratin 18) expression in breast cancer cells. Mechanism study revealed that flubendazole arrested cell cycle at G2/M phase and induced monopolar spindle formation through inhibiting tubulin polymerization. Furthermore, flubendazole enhanced cytotoxic activity of conventional therapeutic drugs fluorouracil and doxorubicin against breast cancer cells. In conclusion, our findings uncovered a remarkable effect of flubendazole on suppressing breast CS-like cells, indicating a novel utilization of flubendazole in breast cancer therapy.
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Yang J, Xiong L, Wang R, Yuan Q, Xia Y, Sun J, Horch RE. In vitro expression of cytokeratin 18, 19 and tube formation of adipose-derived stem cells induced by the breast epithelial cell line HBL-100. J Cell Mol Med 2015; 19:2827-31. [PMID: 26416346 PMCID: PMC4687699 DOI: 10.1111/jcmm.12673] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 08/03/2015] [Indexed: 12/12/2022] Open
Abstract
Fat transplantation is increasingly used in breast augmentation; and recently, the issue of safety concerns from a cellular and molecular point of view has been raised. In this study, attentions were paid to the interaction between adipose-derived stem cells (ADSC) and mammary epithelial cells: human breast cancer cell line - 100 (HBL - 100) cells were used to simulate the normal microenvironment in breast tissue, ADSCs were harvest from human and co-cultured with HBL-100 cells. It was found that ADSCs formed tube-like structures in the co-culture with HBL-100 cells in contrast to the normal morphology of ADSCs in the control group. In addition, the immunofluorescence imaging showed that cytokeratin 18 and 19 (CK18 and 19) were significantly expressed in ADSCs after the co-culture with HBL-100 cells. The ultrastructure of those ADSCs also showed epithelial changes. In conclusion, ADSCs are not biological stable when co-cultured with HBL-100 cells. They differentiate into epithelial-like cells with the expression of epithelial surface marks (CK 18, 19) and form tube-like structures. This may offer an important evidence for the further study of clinical application of transplanting ADSCs rich adipose tissue into the breast in the future.
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Affiliation(s)
- Jie Yang
- Department of Plastic and Reconstructive Surgery, Union Hospital, Huazhong Science & Technology University, Wuhan, Hubei, China
| | - Lingyun Xiong
- Department of Plastic and Reconstructive Surgery, Union Hospital, Huazhong Science & Technology University, Wuhan, Hubei, China
| | - Rongrong Wang
- Department of Plastic and Reconstructive Surgery, Union Hospital, Huazhong Science & Technology University, Wuhan, Hubei, China
| | - Quan Yuan
- Department of Plastic and Reconstructive Surgery, Union Hospital, Huazhong Science & Technology University, Wuhan, Hubei, China
| | - Yun Xia
- Department of Plastic and Reconstructive Surgery, Union Hospital, Huazhong Science & Technology University, Wuhan, Hubei, China
| | - Jiaming Sun
- Department of Plastic and Reconstructive Surgery, Union Hospital, Huazhong Science & Technology University, Wuhan, Hubei, China
| | - Raymund E Horch
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital Erlangen, Friedrich Alexander University, Erlangen-Nuernberg, FAU, Germany
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Macrophages Contribute to the Progression of Infantile Hemangioma by Regulating the Proliferation and Differentiation of Hemangioma Stem Cells. J Invest Dermatol 2015; 135:3163-3172. [PMID: 26288359 DOI: 10.1038/jid.2015.321] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 07/14/2015] [Accepted: 07/20/2015] [Indexed: 02/06/2023]
Abstract
Macrophage infiltration has been implicated in infantile hemangioma (IH), the most common tumor of infancy. However, the exact role of macrophages in IH remains unknown. This study aims to clarify the functional significance of macrophages in the progression of IH. The distribution of macrophages in human IH was analyzed, and our results revealed that polarized macrophages were more prevalent in proliferating IHs than in involuting IHs, which was consistent with the increased macrophage-related cytokines in proliferating IHs. In vitro results further demonstrated that polarized macrophages effectively promoted the proliferation of hemangioma stem cells (HemSCs) and suppressed their adipogenesis in an Akt- and extracellular signal-regulated kinase 1/2 (Erk1/2)-dependent manner. Moreover, M2- but not M1-polarized macrophages promoted the endothelial differentiation of HemSCs. Furthermore, mixing macrophages in a murine hemangioma model elevated microvessel density and postponed fat tissue formation, which was concomitant with the activation of Akt and Erk1/2 signals. Cluster analysis revealed a close correlation among the macrophage markers, Ki67, vascular endothelial growth factor (VEGF), p-Akt, and p-Erk1/2 in human IH tissues. Collectively, our results suggest that macrophages in IH contribute to tumor progression by promoting the proliferation and endothelial differentiation while suppressing the adipogenesis of HemSCs. These findings indicate that targeting the infiltrating macrophages in IH is a promising therapeutic approach to accelerate IH regression.
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Li Q, Kappil MA, Li A, Dassanayake PS, Darrah TH, Friedman AE, Friedman M, Lambertini L, Landrigan P, Stodgell CJ, Xia Y, Nanes JA, Aagaard KM, Schadt EE, Murray JC, Clark EB, Dole N, Culhane J, Swanson J, Varner M, Moye J, Kasten C, Miller RK, Chen J. Exploring the associations between microRNA expression profiles and environmental pollutants in human placenta from the National Children's Study (NCS). Epigenetics 2015; 10:793-802. [PMID: 26252056 DOI: 10.1080/15592294.2015.1066960] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
The placenta is the principal regulator of the in utero environment, and disruptions to this environment can result in adverse offspring health outcomes. To better characterize the impact of in utero perturbations, we assessed the influence of known environmental pollutants on the expression of microRNA (miRNA) in placental samples collected from the National Children's Study (NCS) Vanguard birth cohort. This study analyzed the expression of 654 miRNAs in 110 term placentas. Environmental pollutants measured in these placentas included dichlorodiphenyldichloroethylene (DDE), bisphenol A (BPA), polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), arsenic (As), mercury (Hg), lead (Pb), and cadmium (Cd). A moderated t-test was used to identify a panel of differentially expressed miRNAs, which were further analyzed using generalized linear models. We observed 112 miRNAs consistently expressed in >70% of the samples. Consistent with the literature, miRNAs located within the imprinted placenta-specific C19MC cluster, specifically mir-517a, mir-517c, mir-522, and mir-23a, are among the top expressed miRNA in our study. We observed a positive association between PBDE 209 and miR-188-5p and an inverse association between PBDE 99 and let-7c. Both PCBs and Cd were positively associated with miR-1537 expression level. In addition, multiple let-7 family members were downregulated with increasing levels of Hg and Pb. We did not observe DDE or BPA levels to be associated with placental miRNA expression. This is the first birth cohort study linking environmental pollutants and placental expression of miRNAs. Our results suggest that placental miRNA profiles may signal in utero exposures to environmental chemicals.
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Affiliation(s)
- Qian Li
- a Departments of Preventive Medicine, Pediatrics, Oncological Science, Obstetrics , Gynecology and Reproductive Sciences; Icahn School of Medicine at Mount Sinai ; New York , NY USA
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Abstract
A genome-wide screen had previously shown that knocking down miR-98 and let-7g, two miRNAs of the let-7 family, leads to a dramatic increase in terminal myogenic differentiation. In the present paper, we report that a transcriptomic analysis of human myoblasts, where miR-98 was knocked down, revealed that approximately 240 genes were sensitive to miR-98 depletion. Among these potential targets of miR-98, we identified the transcriptional repressor E2F5 and showed that it is a direct target of miR-98. Knocking down simultaneously E2F5 and miR-98 almost fully restored normal differentiation, indicating that E2F5 is involved in the regulation of skeletal muscle differentiation. We subsequently show that E2F5 can bind to the promoters of two inhibitors of terminal muscle differentiation, ID1 (inhibitor of DNA binding 1) and HMOX1 (heme oxygenase 1), which decreases their expression in skeletal myoblasts. We conclude that miR-98 regulates muscle differentiation by altering the expression of the transcription factor E2F5 and, in turn, of multiple E2F5 targets.
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