Готові списки джерел за темами / MiR-29c

Добірка наукової літератури з теми "MiR-29c"

Автор: Grafiati

Опубліковано: 6 вересня 2023

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Статті в журналах з теми "MiR-29c"

Huang, Yu-Qing, Jie Li, Cheng Huang, and Ying-Qing Feng. "Plasma MicroRNA-29c Levels Are Associated with Carotid Intima-Media Thickness and is a Potential Biomarker for the Early Detection of Atherosclerosis." Cellular Physiology and Biochemistry 50, no. 2 (2018): 452–59. http://dx.doi.org/10.1159/000494158.

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Background/Aims: Atherosclerosis is a serious disease that increases the risk of myocardial infarction and ischemic stroke. Previous studies have demonstrated that microRNA (miR)-29c could play significant roles in atherosclerosis via regulating inflammatory processes. However, the relationship between miR-29c and carotid intima-media thickness (CIMT) remains unknown. This study investigated associations between miR-29c and atherosclerosis and tested whether plasma miR-29c levels could be used to detect atherosclerosis. Methods: Plasma miR-29c levels were estimated by quantitative real-time PCR, and CIMT was measured by carotid ultrasound. Associations between miR-29c and CIMT were assessed by Spearman’s correlation coefficient and multiple linear regression analyses. Results: In total, 170 participants were divided into the study (CIMT ≥0.9 mm) and control (CIMT < 0.9 mm) groups. The study group showed higher C-reactive protein (CRP) and miR-29c relative expression levels compared with the control group. CIMT was positively correlated with miR-29c (r=0.659, p< 0.001) and CRP (r=0.447, p< 0.001), and miR-29c levels were also correlated with CRP (r=0.512, p< 0.001). Furthermore, multiple linear regression analysis showed that CIMT was significantly correlated with miR-29c (β=0.573, 95% confidence interval [CI]: 0.315-0.839; p< 0.001) and CRP (β=0.439, 95%CI: 0.186–0.825; p< 0.001). After age, body mass index, systolic blood pressure, total cholesterol and fasting blood-glucose were adjusted for, CIMT was still closely associated with miR-29c (β=0.529, 95%CI: 0.354–0.812; p< 0.001) and CRP (β=0.417, 95%CI: 0.198–0.724; p< 0.001). Evaluating CRP and miR-29c together (AUC=0.900, p< 0.001) achieved a better prognostic value for atherosclerosis than miR-29c (AUC=0.870, p< 0.001) or CRP (AUC=0.722, p< 0.001) alone. Conclusion: Increased miR-29c was closely associated with CIMT and may serve as a biomarker for identifying atherosclerotic patients.

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Liu, Jiazheng, Guilu Tao, Cundi Zhong, and Xiao Liu. "Upregulation of miR-29c-3p Hinders Melanoma Progression by Inhibiting CDCA4 Expression." BioMed Research International 2021 (August 28, 2021): 1–15. http://dx.doi.org/10.1155/2021/7065963.

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Objective. To investigate the expression and regulation mechanism of miR-29c-3p and cell division cycle associated 4 (CDCA4) in melanoma (MM). Data and Methods. Fifty-nine patients with MM admitted to our hospital were enrolled as the MM group. They were followed up for 3 years to analyze the prognostic factors; meanwhile, 51 healthy subjects were allocated into a normal group. MM cell lines (M21 and C8161) were transfected with miR-29c-3p-mimics, miR-29c-3p-inhibitor, miR-NC, si-CDCA4, and sh-CDCA4. The expression of miR-29c-3p, CDCA4, Bax, Caspase3, Bcl-2, N-cadherin, vimentin, and E-cadherin was quantified, and cell proliferation, migration, invasion, and apoptosis, as well as epithelial-mesenchymal transition (EMT), were determined. Results. Serum miR-29c-3p was lowly expressed and CDCA4 was highly expressed in the MM group. The area under the curve (AUC) of both for diagnosing MM was greater than 0.9. miR-29c-3p and CDCA4 were related to regional lymph node staging (N staging), distant metastasis (M staging), tumor diameter, and pathological differentiation. Low miR-29c-3p and high CDCA4 were associated with poor prognosis of MM. Overexpression of miR-29c-3p and suppression of CDCA4 hindered cell proliferation, migration, invasion, and expression of Bax, Caspase3, N-cadherin, and vimentin, but cell apoptosis and expression of Bcl-2 and E-cadherin were enhanced. Dual-luciferase reporter (DLR) assay confirmed the targeted relationship between miR-29c-3p and CDCA4. After miR-29c-3p-mimics+sh-CDCA4 was transfected into M21 and C8161 cells, the proliferation, invasion, and apoptosis were not different from those in the miR-NC group transfected with unrelated sequences. Conclusion. Overexpression of miR-29c-3p suppresses CDCA4 expression and decreases proliferation, migration, invasion, apoptosis, and EMT of MM cells, thus hindering MM progression.

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Cao, Yanqun, Xiangxiang Tan, Quzhe Lu, Kai Huang, Xiaoer Tang, and Zhiming He. "MiR-29c-3p May Promote the Progression of Alzheimer’s Disease through BACE1." Journal of Healthcare Engineering 2021 (December 15, 2021): 1–11. http://dx.doi.org/10.1155/2021/2031407.

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The aim of this study was to explore the specific role of miR-29c-3p in Alzheimer’s disease (AD). Animal models of AD were established by injecting streptozotocin (STZ) into mice through the lateral ventricle, while cell models of AD were induced by 10 μM β-amyloid (Aβ). We detected miR-29c-3p and β-site amyloid precursor protein cleaving enzyme 1 (BACE1) contents and measured AD cell proliferation and apoptosis. A low miR-29c-3p level and a high BACE1 level were detected in the brain tissue of AD animal models and AD cell models. Aβ-processed cells had markedly lower proliferation activity, higher apoptosis, increased phosphorylation of tau protein was over phosphorylated, but the overexpression of miR-29c-3p or the silencing of BACE1 significantly enhanced the cell proliferation activity and reduced cell apoptosis by regulating the contents of related proteins. Inhibition of miR-29c-3p or overexpression of BACE1 aggravated Aβ-induced side effects. We used Targetscan7.2 to predict the downstream target genes of miR-29c-3p. Then, we detected that there were target binding sites between miR-29c-3p and BACE1. The rescue experiment identified BACE1 as a functional target for miR-29c-3p. AD leads to decreased miR-29c-3p level and increased BACE1 level. MiR-29c-3p has specific binding sites with the 3′-untranslated region (3′-UTR) of BACE1 and thus negatively regulates the BACE1 level, thereby affecting the progression of AD.

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Wang, Shaoqiang, Pengfei Yi, Na Wang, Min Song, Wenhui Li, and Yingying Zheng. "LncRNA TUG1/miR-29c-3p/SIRT1 axis regulates endoplasmic reticulum stress-mediated renal epithelial cells injury in diabetic nephropathy model in vitro." PLOS ONE 16, no. 6 (June 7, 2021): e0252761. http://dx.doi.org/10.1371/journal.pone.0252761.

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Long non-coding RNAs (lncRNAs) are important regulators in diabetic nephropathy. In this study, we investigated the potential role of lncRNA TUG1 in regulating endoplasmic reticulum stress (ERS)-mediated apoptosis in high glucose induced renal tubular epithelial cells. Human renal tubular epithelial cell line HK-2 was challenged with high glucose following transfection with lncRNA TUG1, miR-29c-3p mimics or inhibitor expression plasmid, either alone or in combination, for different experimental purposes. Potential binding effects between TUG1 and miR-29c-3p, as well as between miR-29c-3p and SIRT1 were verified. High glucose induced apoptosis and ERS in HK-2 cells, and significantly decreased TUG1 expression. Overexpressed TUG1 could prevent high glucose-induced apoptosis and alleviated ERS via negatively regulating miR-29c-3p. In contrast, miR-29c-3p increased HK-2 cells apoptosis and ERS upon high glucose-challenge. SIRT1 was a direct target gene of miR-29c-3p in HK-2 cells, which participated in the effects of miR-29c-3p on HK-2 cells. Mechanistically, TUG1 suppressed the expression of miR-29c-3p, thus counteracting its function in downregulating the level of SIRT1. TUG1 regulates miR-29c-3p/SIRT1 and subsequent ERS to relieve high glucose induced renal epithelial cells injury, and suggests a potential role for TUG1 as a promising diagnostic marker of diabetic nephropathy.

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Dai, Qijun, Jian Sun, Tianyi Dai, Qin Xu, and Yueqin Ding. "miR-29c-5p knockdown reduces inflammation and blood–brain barrier disruption by upregulating LRP6." Open Medicine 17, no. 1 (January 1, 2022): 353–64. http://dx.doi.org/10.1515/med-2022-0438.

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Abstract Blood–brain barrier participates in the pathological process of ischemic stroke. MicroRNA-29c-5p was highly expressed in clinical samples from patients with ischemic stroke. In this study, oxygen-glucose deprivation (OGD) treatment of astrocytes enhanced the permeability of brain microvascular endothelial cells (BMECs), and the miR-29c-5p expression was elevated in clinical samples from patients with ischemic stroke. For the function of miR-29c-5p in ischemic stroke, the miR-29c-5p knockdown decreased the permeability and the tight junction protein (TJP) destruction of BMECs and ameliorated the inflammation induced by OGD-treated astrocytes. Mechanistically, miR-29c-5p interacted with lipoprotein receptor-related protein 6 (LRP6) and negatively regulated the LRP6 expression in astrocytes. Moreover, the rescue assays indicated that the interference with miR-29c-5p ameliorated the TJP destruction of BMECs and inflammation caused by OGD-treated astrocytes by increasing the LRP6 expression. Together, miR-29c-5p knockdown decreased the high permeability and the TJP destruction of BMECs and ameliorated the inflammation induced by OGD-treated astrocytes by elevating LRP6 expression.

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Wang, X., K. Xu, XY Yang, J. Liu, Q. Zeng та FS Wang. "Upregulated miR-29c suppresses silica-induced lung fibrosis through the Wnt/β-catenin pathway in mice". Human & Experimental Toxicology 37, № 9 (8 грудня 2017): 944–52. http://dx.doi.org/10.1177/0960327117741750.

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Silicosis is an irreversible lung disease resulting from long-term inhalation of occupational dust containing silicon dioxide. However, the pathogenesis of silicosis has not been clearly understood yet. Accumulating evidence suggests that miR-29 may have a significant anti-fibrotic capacity, meanwhile it may relate to Wnt/β-catenin pathway. The purpose of this study was to discuss the role of miR-29 in the progression of silicosis. A lentiviral vector was constructed, named Lv-miR-29c, which was overexpressing miR-29c. In vivo, intratracheal treatment with Lv-miR-29c significantly increased expression of miR-29c, and reduced expression of β-catenin, matrix metalloproteinase (MMP)-2, and MMP-9 in the lung and levels of transforming growth factor-beta 1 (TGF-β1) and interleukin-6 (IL-6) in bronchoalveolar lavage fluid, and notably attenuated pulmonary fibrosis as evidenced by hydroxyproline content in silica-administered mice. These results indicated that miR-29c inhibited the development of silica-induced lung fibrosis. Thus, miR-29c may be a candidate target for silicosis treatment via its regulation of the Wnt/β-catenin pathway.

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Fang, Yi, Xiaofang Yu, Yong Liu, Alison J. Kriegel, Yanyan Heng, Xialian Xu, Mingyu Liang та Xiaoqiang Ding. "miR-29c is downregulated in renal interstitial fibrosis in humans and rats and restored by HIF-α activation". American Journal of Physiology-Renal Physiology 304, № 10 (15 травня 2013): F1274—F1282. http://dx.doi.org/10.1152/ajprenal.00287.2012.

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Treatment with l-mimosine, which activates hypoxia-inducible factor-α (HIF-α), attenuates renal tubulointerstitial injury and improves renal function in a rat remnant kidney model. The miR-29 family of microRNAs directly targets a large number of extracellular matrix genes and reduces renal interstitial fibrosis. We analyzed microRNA expression profiles in rat remnant kidneys with or without treatment with l-mimosine. The expression of miR-29c was downregulated in rat remnant kidneys compared with sham control and significantly restored by the l-mimosine treatment. In cultured human kidney epithelial HK2 cells, cobalt chloride activated HIF-α and upregulated miR-29c expression. The upregulation of miR-29c expression was significantly attenuated by knockdown of HIF-1α or HIF-2α. Downregulation of miR-29c was associated with significant increases in interstitial fibrosis, collagen type II α1 (COL2A1) protein, and tropomyosin 1α (TPM1) protein in rat remnant kidneys and in kidneys from IgA nephropathy patients. The increases in rat remnant kidneys were attenuated by the l-mimosine treatment. COL2A1 and TPM1 were confirmed to be new, direct targets of miR-29c. In conclusion, miR-29c, an antifibrotic microRNA, is upregulated by HIF-α activation. MiR-29c is downregulated in renal interstitial fibrosis in humans and rats and restored by activation of HIF-α that attenuates fibrosis.

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Chuang, Tsai-Der, William J. Pearce, and Omid Khorram. "miR-29c induction contributes to downregulation of vascular extracellular matrix proteins by glucocorticoids." American Journal of Physiology-Cell Physiology 309, no. 2 (July 15, 2015): C117—C125. http://dx.doi.org/10.1152/ajpcell.00254.2014.

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Maternal undernutrition increases maternal glucocorticoids (GCs) and alters microRNA expression in offspring. Given that the mechanisms of GC action on vascular development are not clear, this study examined the influence of GCs on microRNA 29c (miR-29c) and its predicted targets in primary rat aorta smooth muscle cells (RAOSMCs). Dexamethasone (Dex) and corticosterone (Cor) time-dependently increased miR-29c expression and reduced collagen type III (Col3A1), collagen type IV (Col4A5), elastin (ELN), and matrix metalloproteinase-2 (MMP2) protein in RAOSMCs. These effects were blocked by mifepristone. These genes were also targeted by miR-29c, as confirmed by a significant decrease in luciferase reporter activity of Col3A1 (34%), Col4A5 (45%), ELN (17%), and MMP2 (28%). In cells transfected with reporter plasmids, including the 3′-untranslated region of genes targeted by miR-29c, treatment with Dex or Cor also resulted in decreases in luciferase activity. Gain or loss of function of miR-29c significantly altered mRNA expression of Col3A1 (26% and 26%, respectively), Col4A5 (28% and 32%, respectively), and MMP2 (24% and 14%, respectively) but did not affect ELN. Gain or loss of function of miR-29c also significantly altered protein levels of Col3A1 (51% and 16%, respectively), Col4A5 (56% and 22%, respectively), ELN (53% and 71%, respectively), and MMP2 (28% and 53%, respectively). Coincubation of anti-miR-29c with Dex or Cor partially attenuated the effects of these steroids on protein expression of Col3A1 (25% and 24%, respectively), Col4A5 (26% and 44%, respectively), ELN (31% and 55%, respectively), and MMP2 (46% and 26%, respectively) in RAOSMCs compared with anti-miR negative controls. Our results demonstrate that GCs regulate the expression of Col3A1, Col4A5, ELN, and MMP2, at least in part, through induction of miR-29c.

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Batliner, Jasmin, Mathias Jenal, Martin F. Fey, and Mario P. Tschan. "Mir-29c and Mir-424 Are Novel Myeloid Differentiation-Associated MicroRNAs in Acute Promyelocytic Leukemia." Blood 112, no. 11 (November 16, 2008): 3346. http://dx.doi.org/10.1182/blood.v112.11.3346.3346.

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Abstract MicroRNAs (miRNAs) are a class of small non-coding RNAs that regulate gene expression at the post-transcriptional level. Recent studies showed that they are critically involved in hematopoietic differentiation and function by a coordinating multi-target repression of hematopoiesis-related genes. To identify miRNAs involved in the pathogenesis of acute promyelocytic leukemia (APL), characterized by the t(15;17) translocation, we performed TaqMan Low Density Array-based miRNA expression profiling on blast cells from an APL patient under all-trans retinoic acid (ATRA) treatment. Although recent reports investigated miRNA expression patterns in APL blast cells and cell lines subjected to ATRA in vitro, to our knowledge this is the first study that relies on cells from an APL patient treated with ATRA in vivo. Since the downregulation of the PML-RARA transcript cannot be assessed within a time period of a few days, we monitored effective ATRA treatment by measuring mRNA downregulation of the panleukemic marker Wilms’ tumor (WT)-1. WT1 mRNA levels decreased 64% and 92% at day 3 and 6 upon ATRAtherapy, respectively. Total RNA obtained at diagnosis and at days 3/6 following ATRA therapy were screened for expression patterns of 384 human miRNAs including two endogenous controls, RNU44 and RNU48, for normalization of miRNA expression. Since these controls were regulated upon ATRA treatment, we normalized miRNA expression to miR-93, which showed stable expression in our samples. Consistent with previous in vitro APL miRNA profiling data, the granulocyte-specific miR-223 was induced 6.6-fold at day 6 upon ATRA treatment. For further analysis, we focused on two hematopoietic lineage-specific miRNAs, miR-29c and miR-424 that have not yet been associated with neutrophil development. miR-29c and miR-424 were upregulated 6.5- and 6.0-fold at day 6 in response to ATRA, respectively. Induction of these miRNAs was confirmed by individual real-time RT-PCR assays. Moreover, expression of miR-29c and miR-424 was further investigated in NB4 and HT93 APL cell lines. In both cell lines, miR-424 was upregulated in response to ATRA similar to the patient samples, suggesting a role for miR-424 in granulocytic differentiation in addition to that described in macrophage development. miR-29c, however, showed an upregulation in HT93 but not in NB4 cells implying cell type specific regulation. Additionally, we tested the involvement of miR- 29c in macrophage differentiation of HL60 leukemic cells using phorbol 12-myristate 13-acetate (PMA) as a differentiating agent. Interestingly, miR-29c showed an 8.0- fold upregulation similar to an 8.7-fold induction of miR-424, a known target of the transcription factor PU.1 upon PMA treatment. Based on the similar regulation of miR-29c and miR-424 and the presence of several putative PU.1 binding elements in the miR-29c promoter, we are currently investigating whether miR-29c is a novel transcriptional target of PU.1. A confirmed target of miR-29c is the protein DNA methyltransferase (DNMT 3A and 3B), which is overexpressed in myeloid leukemias. Therefore, induction of miR-29c during myelopoiesis might be needed to target DNMT. In conclusion, we propose a novel association of miR-29c and miR-424 with ATRA-induced neutrophil differentiation.

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Huang, Limin, Chaoquan Hu, Hui Cao, Xiaoliang Wu, Rongpin Wang, He Lu, Hong Li, and Hui Chen. "MicroRNA-29c Increases the Chemosensitivity of Pancreatic Cancer Cells by Inhibiting USP22 Mediated Autophagy." Cellular Physiology and Biochemistry 47, no. 2 (2018): 747–58. http://dx.doi.org/10.1159/000490027.

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Background/Aims: Pancreatic cancer (PC) is an aggressive malignancy with a poor survival rate. Despite advances in the treatment of PC, the efficacy of therapy is limited by the development of chemoresistance. Here, we examined the role of microRNA-29c (miR-29c) and the involvement of autophagy and apoptosis in the chemoresistance of PC cells in vivo and in vitro. Methods: We employed qRT-PCR, western blot and immunofluorescence to examine the expression level of miR-29c, USP22 and autophagy relative protein. In addition, we used MTT assay to detect cell proliferation and transwell assay to measure migration and invasiveness. The apoptosis was determined using annexin V-FITC/PI apoptosis detection kit by flow cytometry. Luciferase reporter assays confirmed the relationship between USP22 and miR-29c. Results: miR-29c overexpression in the PC cell line PANC-1 enhanced the effect of gemcitabine on decreasing cell viability and inducing apoptosis and inhibited autophagy, as shown by western blotting, immunofluorescence staining, colony formation assays, and flow cytometry. Ubiquitin specific peptidase (USP)-22, a deubiquitinating enzyme known to induce autophagy and promote PC cell survival, was identified as a direct target of miR-29c. USP22 knockdown experiments indicated that USP22 suppresses gemcitabine-induced apoptosis by promoting autophagy, thereby increasing the chemoresistance of PC cells. Luciferase reporter assays confirmed that USP22 is a direct target of miR-29c. A xenograft mouse model demonstrated that miR-29c increases the chemosensitivity of PC in vivo by downregulating USP22, leading to the inhibition of autophagy and induction of apoptosis. Conclusions: Taken together, these findings reveal a potential mechanism underlying the chemoresistance of PC cells mediated by the regulation of USP22-mediated autophagy by miR-29c, suggesting potential targets and therapeutic strategies in PC.

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Більше джерел

Дисертації з теми "MiR-29c"

Gersmann, Ann-Kathrin [Verfasser], and de Fend Leticia [Akademischer Betreuer] Quintanilla-Martinez. "Untersuchung der direkten Regulation der miR-29c- und miR-146a-abhängig exprimierten Zielgene mittels Reportergensassay im ALK-positiven ALCL / Ann-Kathrin Gersmann ; Betreuer: Leticia Quintanilla-Martinez de Fend." Tübingen : Universitätsbibliothek Tübingen, 2017. http://d-nb.info/1199465267/34.

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Тези доповідей конференцій з теми "MiR-29c"

Poli, Elizabeth Carla, Rachel Tolbert, Jing Zhang, Yoo-Jeong Han, and Olufunmilayo I. Olopade. "Abstract 3559A: Molecular subtype-specific methylation of the miR-29c promoter in breast cancer correlates with basal-like pattern of gene expression." In Proceedings: AACR Annual Meeting 2014; April 5-9, 2014; San Diego, CA. American Association for Cancer Research, 2014. http://dx.doi.org/10.1158/1538-7445.am2014-3559a.

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Lien, Ming-Yu, and Chih-Hsin Tang. "Abstract 200: The MCP-1/CCR2 axis enhances VEGF-A-dependent angiogenesis by directly downregulating miR-29c expression in oral squamous cell carcinoma." In Proceedings: AACR Annual Meeting 2019; March 29-April 3, 2019; Atlanta, GA. American Association for Cancer Research, 2019. http://dx.doi.org/10.1158/1538-7445.sabcs18-200.

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