ACS Biomaterials Science & Engineering
·
2021
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IF 4.749
Genbin Wu,Binbin Sun,Chunfeng Zhao,Zhuoying Wang,Songsong Teng,Mengkai Yang,Zhi Cui,Guoliang Zhu,Yinxian Yu
Tendon adhesion formation is associated with the aberrant expression of many genes, and interfering with the expression of these genes can prevent adhesion and promote tendon repair. Recent studies have found that silencing the transforming growth factor β-1 (TGF-β1) gene can reduce the occurrence of tendon adhesions. The development of tissue engineering and three-dimensional (3D) printing technology have provided new solutions for tendon repair. In this study, TGF-β1 gene silencing microRNA (miRNA) based RNAi plasmid was loaded on a 3D tendon scaffold using 3D printing technology. In vitro experiments confirmed the sustained release of plasmid and the good biocompatibility of the printed tendon scaffold. Subsequently, the TGF-β1 gene silencing plasmid loaded tendon scaffold was implanted in a chicken tendon defect model to evaluate the effect of the scaffold in vivo. The results from biomechanical tests and histological examinations showed that the scaffold not only promoted tendon regeneration but also prevented tendon adhesion, which was conducive to the recovery of biofunction. Evaluation of protein expression showed that the loaded plasmids prevented tendon adhesion and promoted tendon functional repair via silencing of the TGF-β1 gene.
研究领域:
组织工程
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再生医学
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分子生物学
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生物医学工程
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PubMed
高影响因子
JOURNAL OF CELLULAR PHYSIOLOGY
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2018
·Vol. 234
·期 7
·11440-11450
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IF 3.923
Zheng-Yu Liu,Hong-Wei Pan,Yan Cao,Jiao Zheng,Yu Zhang,Yi Tang,Jin He,Yong-Jun Hu,Chang-Lu Wang,Qiong-Chao Zou,Qing-Hua Fu,Le Zhang,Jian-Qiang Peng,Jing Ling,Ning Peng,Jing-Jing Rong,Zhao-Fen Zheng
microRNAs (miRs) are essential in the development of heart failure. The aim of this study is to investigate the effect of microRNA-330 (miR-330) on left ventricular remodeling via the TGF-β1/Smad3 signaling pathway by targeting the sex-determining region Y (SRY) in mice with myocardial ischemia–reperfusion injury (MIRI). Differentially expressed gene (DEG) in myocardial ischemia–reperfusion (IR) was screened out and the miR that targeted the DEG was also predicted and verified. A model of MIRI was established to detect the expression of miR-330, SRY, transforming growth factor-β (TGF-β1), and Sekelsky mothers against dpp3 (Smad3). To further investigate the role of miR-330 in MIRI with the involvement of SRY and TGF-β1/Smad3 signaling pathway, the modeled mice were treated with different mimic, inhibitor, or small interfering RNA (siRNA) to observe the changes of the related gene expression, as well as the myocardial infarction size and volume of myocardial collagen. SRY was screened out and verified as a target gene of miR-330. The MIRI mice showed enlarged myocardial infarction size, increased volume of myocardial collagen, increased expression of miR-330, TGF-β1 and Smad3, while decreased the expression of SRY. The MIRI mice treated with miR-330 inhibitor showed decreased myocardial infarction size, the volume of myocardial collagen, and expression of TGF-β1 and Smad3 but promoted expression of SRY. Our findings demonstrated that downregulated miR-330 could suppress left ventricular remodeling to inhibit the activation of the TGF-β1/Smad3 signaling pathway via negatively targeting of SRY in mice with MIRI. This can be a potential target in the strategy to attenuate patient suffering.
研究领域:
心脏病学
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分子生物学
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遗传学
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PubMed
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2018
·
IF 3.997
Meng Xiao,Jiangwei Xiao,Gang Wu,Yu Ke,Liming Fang,Chunlin Deng,Hua Liao
Protein adsorption on biomaterial surfaces is clinically applied to increase therapeutic effects; however, this adsorption is possibly accompanied by conformational changes and results in loss of protein bioactivity or adverse reactions. In this research, a transforming growth factor β1 (TGF-β1) affinitive peptide HSNGLPL was grafted onto biopolymer surface to stabilize TGF-β1 spatial conformation after adhesion. The peptide with azide end group was combined with the propynyl pendant group on polyurethane via copper-catalyzed azide–alkyne cycloaddition (CuAAC) click reaction. The final polymer was characterized by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance spectroscopy, which indicated that the affinitive peptide was introduced to the polymer. Quartz crystal microbalance with dissipation (QCM-D) was performed to monitor TGF-β1 adsorption and desorption on the surfaces coated with polyurethane with and without peptide combination. Results showed that TGF-β1 adhered on polyurethane surface and formed a compact and rigid layer. This layer showed spatial structural change but presented a loose and diffuse layer on the peptide-grafted polyurethane surface, indicating stable spatial conformation after adherence. Similar regulations were observed on the two surfaces where BSA layer was coated in advance. In vivo animal experiments revealed that immune reactions and tissue regenerations occurred earlier on peptide-modified polyurethane than on polyurethane, which did not undergo peptide grafting. This finding confirmed that affinitive interactions may preserve TGF-β1 bioactivity on polymer surface after adsorption.
研究领域:
生物材料
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生物医学工程
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蛋白质工程
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组织工程
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DOI
PubMed
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
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2023
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IF 5.4
Ye Liu,Jiufeng Zhao,Xingrui Mu,Junyu Deng,Xingqian Wu,Wenjie He,Yiqiu Liu,Rifang Gu,Felicity Han,Xuqiang Nie
Ethnopharmacological relevance Centella asiatica (L.) Urban is an ethnobotanical herb. The main bioactive components of Centella asiatica are pentacyclic triterpenoid glycosides , namely asiaticoside and hydroxyasiaticoside. Asiaticoside possess a diverse array of pharmacological properties, such as wound-healing, anti-inflammatory, antioxidant, anti-allergic, antidepressant, anxiolytic, anti-fibrotic, antibacterial, anti-arthritic, anti-tumor, and immunomodulatory activities. Aim of the study The purpose of this investigation is to explore potential therapeutic interventions for the delayed healing of wounds in diabetic patients (DW) facilitated by Asiaticoside-Nitric Oxide. To clarify the key molecular mechanism of miRNA-21-5p in DW wound repair and to deepen the understanding of DW disease pathogenesis. Materials and methods Firstly, miRNA microarray technology, bioinformatics, and RT-qPCR were used to analyze DW patients' and normal controls' skin tissue samples. Secondly, in order to investigate the role of miRNA-21-5p, a hyperglycemic model was established using HaCaT cells. Overexpressing as well as interfering HaCaT cell lines were constructed by lentiviral infection to further explore the proliferative and migratory effects of Asiaticoside-Nitric Oxide. The next step was to search for potential target genes of miRNA-21-5p and verify them with dual-luciferase reporter assay. Finally, the expression levels of target genes and proteins were detected through the utilization of RT-qPCR and Western blotting under the influence of Asiaticoside-Nitric Oxide. Results A library of miRNAs and target genes expressed explicitly in DW patients and rats was established. The study confirmed the upregulation of miRNA-21-5p in DW patients and identified its involvement in signaling pathways related to chronic ulcer wound repair. Overexpression of LV-miRNA-21-5p significantly promoted cell proliferation , while treatments of Asiaticoside-Low dose (AC-L) and Asiaticoside-Medium dose (AC-M) enhanced proliferation and migration, particularly when combined with nitroprusside (SNP). Further analysis revealed potential target genes of miRNA-21-5p, such as TGF-β1, SMAD7, and TIMP3. Their interaction with miRNA-21-5p was confirmed through dual luciferase assays. The study found that anti-DW drugs increased the expression of TGF-β1 and SMAD7 while inhibiting TIMP3 expression in a high-glucose environment. Conclusions The research concluded that miRNA-21-5p plays a crucial role in the delayed healing of diabetic wounds, and that the combination treatment of AC + SNP shows promise in promoting wound healing in DW rats. Target genes, including TGF-β1, SMAD7, and TIMP3, may contribute to the regulatory mechanisms involved in diabetic wound healing. These findings provide valuable insights for developing novel therapeutic approaches for DW.
研究领域:
药理学
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分子生物学
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糖尿病研究
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伤口愈合
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民族药理学
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PubMed
高影响因子
Foods
·
2025
·Vol. 14
·期 24
·4267
·
IF 5.1
Jing Xu,Wen-Zhao Wen,Jun-Hui Zhao,Jun-Rong Guo,Zhuo-Ya Zhang,Ping Xiong
Citri grandis exocarpium ( Citri grandis ) has been consumed by human beings for fifteen hundred years. It is commonly consumed as a health drink and dietary supplement in China. However, its nutritional and healthcare functions are still not fully understood. Objective: Our previous study found that oral administration of Citri grandis extract can significantly decrease the blood lipid levels of hyperlipidemic mice fed a high-fat diet. The aim of this study was to confirm the preventative effects of Citri grandis extract against atherosclerosis. Methods: Atherosclerotic lesion models were induced in HUVECs and apoE −/− C57BL/6J mice. ApoE −/− mice fed a high-fat diet were orally administered Citri grandis extract (0.4, 0.8, and 1.6 g/kg/d BW) and Simvastatin (1 mg/kg/d BW) on the first day of model establishment. After a 16-week treatment, serum samples and aorta and liver tissues were collected. Observation of pathological changes in aortic and liver tissues was performed using a light microscope with oil red O, H&E, Masson’s trichrome staining, and TEM. Biochemical detection was employed to determine the serum levels of TC, TG, LDL-C, and HDL-C as well as the activities of AST and ALT. In addition, expression studies of TGF-β, PI3K, AKT1, PPAR-γ, LXR-α, and ABCA1 were performed via qPCR and Western blot analysis. Results: Compared with cholesterol-induced HUVECs, Citri grandis extract significantly enhanced cell viability, attenuated the morphological changes in HUVECs, and reduced LDH release. Furthermore, after treatment with Citri grandis extract, the levels of TC, TG, and LDL-C significantly decreased in the atherosclerosis model apoE −/− mice after 16 weeks, and aortic plaque, lipid deposition, and endothelial injury were obviously ameliorated. The mRNA and protein expression of TGF-β, PPAR-γ, LXR-α, and ABCA1 in aortic and liver of atherosclerosis apoE −/− mice were upregulated ( p < 0.05, p < 0.01), while those of PI3K and Akt1 were suppressed ( p < 0.05, p < 0.01). Conclusions: Citri grandis extract can significantly decrease the high circulating lipid levels and the liver lipid deposition of high-fat-diet-fed apoE −/− mice and reduce aorta lipid accumulation and atherosclerotic plaques by regulating the expression of TGF-β1, PI3K, AKT1, PPAR-γ, LXR-α, and ABCA1. Citri grandis extract can be used as a healthcare dietary supplement for the prevention of abnormal lipid metabolism and atherosclerosis.
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高影响因子
Frontiers in Endocrinology
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2023
·
IF 5.2
Zhao Qingsong,Xu Jinmei,Han Xu,Zhang Zheqi,Qu Jiahui,Cheng Zhifeng
Background: Diabetic foot ulcer (DFU) represents a highly-prevalent complication of diabetes mellitus (DM). Herein, the current study sought to identify the role of growth differentiation factor 10 (GDF-10) in wound healing in DFU via regulation of the transforming growth factor-beta 1 (TGF-β1)/Smad3 pathway.Methods: DM- and DFU-related microarray datasets GSE29221 and GSE134431 were firstly retrieved, and weighted gene co-expression network analysis (WGCNA) was carried out to construct a co-expression network affecting wound healing in DFU, followed by differential analysis. A protein-protein interaction (PPI) network of the DFU-related genes was subsequently constructed, and the core genes and signaling pathways in DFU were screened with the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes functional analyses. A DFU rat model was constructed for mechanism verification of the effect of GDF-10 on wound healing in DFU.Results: WGCNA screened five co-expression modules, and the brown module was most closely-related to DM. Clustering analysis screened 4417 candidate genes, of which 175 differential genes were associated with wound healing, further involved in TGF-β1/Smad3 signaling pathway regulation of wound healing in DFU. The PPI network analysis predicted that GDF-10 might regulate the TGF-β1/Smad3 signaling pathway to participate in DFU development. Results of animal experimentation showed that the wound healing rates of NFU, DFU, DFU + GDF and GDF + SIS3 groups on the 22nd day were (87.66 ± 6.80)%, (56.31 ± 7.29)%, (71.64 ± 9.43)% and (55.09 ± 7.13)%, respectively. Besides, the expression of TGF-β1 in NFU, DFU, DFU + GDF and GDF + SIS3 groups was 0.988 ± 0.086, 0.297 ± 0.036, 0.447 ± 0.044, and 0.240 ± 0.050, respectively, and that of Smad3 was 1.009 ± 0.137, 0.145 ± 0.017, 0.368 ± 0.048, and 0.200 ± 0.028, respectively. Specifically, GDF-10 exerted a significant diminishing effect on fasting blood glucose level, and promoted wound healing in DFU rats, in addition to up-regulation of VEGF, FGF, Ang-1, TGF-β1, Smad3 and enhancement of IL-1b, IL-6, TNF-a and MMP-9, thereby promoting fibroblast proliferation, collagen deposition and angiogenesis.Conclusions: Our findings highlight that GDF-10 may promote angiogenesis by activating TGF-β1/Smad3 signaling, thereby promoting wound healing in DFU rats.
研究领域:
糖尿病
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分子生物学
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药理学
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PubMed
高影响因子
AMERICAN JOURNAL OF CHINESE MEDICINE
·
2024
·
IF 4.8
Xiaowei Zhang,Jiajun Wang,Shixie Xiang,Liang Zhao,Mingzhen Lv,Yafei Duan,Gai Gao,Pan Wang,Jenny Jie Chen,Jiangyan Xu,Zhishen Xie,Zhenqiang Zhang
Diabetic kidney disease (DKD) has become the primary cause of end-stage renal disease (ESRD), causing an urgent need for preventive strategies for DKD. Astragaloside I (ASI), a bioactive saponin extracted from Astragalus membranaceus (Fisch.) Bunge has been demonstrated to possess a variety of biological activities. This study investigates the therapeutic potential of ASI in DKD and the underlying molecular mechanism using db/db mice in vivo and high glucose (HG)-induced SV40-MES-13 cells in vitro . The results indicated that ASI significantly ameliorated renal dysfunction and mitigated the pathological alterations in the renal tissues of db/db mice. Moreover, ASI was found to reduce the levels of renal fibrosis makers and suppress the activation of TGF- β 1/Smad2/3 pathway in both db/db mice and HG-induced SV40-MES-13 cells. Furthermore, ASI downregulated HDAC3 expression, upregulated Klotho expression, and enhanced Klotho release. ASI is directly bound to HDAC3, and the beneficial effects of ASI on Klotho/TGF- β 1/Smad2/3-mediciated renal fibrosis in DKD were reversed by the HDAC3 agonist ITSA-1. In conclusion, ASI attenuates renal fibrosis in DKD, and may act through concurrently inhibiting HDAC3 and TGF- β 1, thereby regulating HDAC3-mediciated Klotho/TGF- β 1/Smad2/3 pathway.
研究领域:
药理学
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肾病学
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分子生物学
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糖尿病
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PubMed
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
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2021
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IF 4.36
Yuling Tong,Ruilin Wang,Xia Liu,Miao Tian,Yanling Wang,Yanfei Cui,Wenjun Zou,Yanling Zhao
Ethnopharmacological relevance Zuojin Pill (ZJP) is a classic prescription composed of Coptis chinensis and Tetradium ruticarpum (A.Juss.) T.G.Hartley, which is often used in the treatment of digestive system diseases . Aim of this study The purpose of this study was to explore the therapeutic effect and potential mechanism of ZJP on chronic atrophic gastritis (CAG) induced by MNNG . Materials and methods The GES-1 and rat model of CAG was established by MNNG. Detection of cell viability, morphological changes and proliferation of GES-1 by CCK-8 and high content screening (HCS) assay. G-17, IL-8 and TNF-α in rat serum were detected by ELISA kit. The expression of related mRNA and protein on TGF-β1/PI3K/Akt signal axis were detected by RT-PCR and Western blot . Results The results showed that ZJP could significantly improve the GES-1 damage induced by MNNG and improve the gastric histomorphology of CAG rats. The intervention of ZJP could significantly reduce the content of G-17 and inflammatory factors IL-8, TNF- α, IL-6 and IL-1β, inhibit the expression of TGF-β1, PI3K and their downstream signals p-Akt, p-mTOR, P70S6K, and promote the expression level of PTEN, LC3-II and Beclin-1. Conclusion ZJP has a good therapeutic effect on CAG induced by MNNG, which may be closely related to the inhibition of TGF-β1/PI3K/Akt signal pathway.
研究领域:
药理学
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民族药理学
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胃肠病学
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分子生物学
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细胞生物学
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高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2023
·Vol. 24
·期 13
·10839
·
IF 5.6
Mingkang Zhang,Ruirui Cui,Yan Zhou,Yanrong Ma,Yongwen Jin,Lina Wang,Wen Kou,Xin’an Wu
Renal fibrosis is relentlessly progressive and irreversible, and a life-threatening risk. With the continuous intake of a high-purine diet, hyperuricemia has become a health risk factor in addition to hyperglycemia, hypertension, and hyperlipidemia. Hyperuricemia is also an independent risk factor for renal interstitial fibrosis. Numerous studies have reported that increased mast cells (MCs) are closely associated with kidney injury induced by different triggering factors. This study investigated the effect of MCs on renal injury in rats caused by hyperuricemia and the relationship between MCs and renal fibrosis. Our results reveal that hyperuricemia contributes to renal injury, with a significant increase in renal MCs, leading to renal fibrosis, mitochondrial structural disorders, and oxidative stress damage. The administration of the MCs membrane stabilizer, sodium cromoglycate (SCG), decreased the expression of SCF/c-kit, reduced the expression of α-SMA, MMP2, and inhibited the TGF-β1/Smad2/3 pathway, thereby alleviating renal fibrosis. Additionally, SCG reduced renal oxidative stress and mitigated mitochondrial structural damage by inhibiting Ang II production and increasing renal GSH, GSH-Px, and GR levels. Collectively, the recruitment of MCs, activation of the TGF-β1/Smad2/3 pathway, and Ang II production drive renal oxidative stress, ultimately promoting the progression of renal fibrosis in hyperuricemic rats.Keywords:hyperuricemia;renal fibrosis;mast cells;TGF-β1/Smad2/3 pathway;oxidative stress
研究领域:
肾病学
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病理生理学
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药理学
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PubMed
高影响因子
MOLECULAR CARCINOGENESIS
·
2025
·
IF 3.2
Fei Chen,Caitang Liu,Rongrong Jiang,Hao Wang
Colon cancer treatment remains a clinical challenge. Chaperonin containing TCP1 subunit 6 A (CCT6A) acts as an oncogene in multiple tumors. In this study, we investigated its roles in colon cancer cells. We analyzed CCT6A expression using single-cell datasets and the Gene Expression Profiling Interactive Analysis based on The Cancer Genome Atlas database. Immunohistochemistry, quantitative reverse transcription polymerase chain reaction, and western blot analysis were used to assess CCT6A expression levels in colon cancer tissues and cell lines. Additionally, specific roles of CCT6A in colon cancer was analyzed using cell counting kit-8, 5-ethynyl-2'-deoxyuridine staining, flow cytometry, wound healing, transwell, boron dipyrromethene staining, western blot analysis, and nude model mice. We found that CCT6A expression levels were significantly elevated in colon cancer tissues compared to those in normal tissues and predicted a worse prognosis. CCT6A induced proliferation, migration, invasion, epithelial-mesenchymal transition, and fatty acid synthesis and suppressed apoptosis in colon cancer cells. Mechanistically, CCT6A promoted colon cancer progression by increasing the cleavage of latency-associated peptide (LAP)-transforming growth factor-β1 (TGF-β1) to mature form of TGF-β and inducing Smad2/3 phosphorylation in colon cancer cells. Overall, CCT6A promoted colon cancer progression by modulating fatty acid metabolism and activating the TGF-β1/Smad signaling, serving as a potential therapeutic target for colon cancer.
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高影响因子
BIOORGANIC CHEMISTRY
·
2022
·
IF 5.307
Tingting Ma,Huanli Cheng,Tongxi Li,Yifan Chen,Tianying Cai,Junjie Bai,Ziming Wu,Xianming Xia,Tiancheng Liang,Yichao Du,Wenguang Fu
Background Although liver fibrosis is a key pathologic process in many liver diseases, therapeutic approaches for inhibiting liver fibrosis are still very limited. N-Acetyl- l -tryptophan ( l -NAT) has a hepatoprotective effect via inhibiting the destruction of liver cells, enhancing cell viability and reducing the inflammation. However, the effect of l -NAT on liver fibrosis is not determined. Purpose The present study investigated the effect of l -NAT on liver fibrosis and explored it potential molecular mechanism. Methods To address this concern, this study was carried out via fibrotic mice model induced by CCl 4 and many approaches such as various histological staining methods, western blot assay, etc. Result l -NAT decreased the levels of alanine aminotransferase (ALT) and aspartate transaminase (AST) in fibrotic mice model induced by carbon tetrachloride (CCl 4 ). Histological staining showed that l -NAT ameliorated liver injury and fibrosis, and reduced the expression of α-smooth muscle actin (α-SMA) and Collagen I protein. l -NAT also attenuated apoptosis by down-regulating the level of pro-apoptotic protein Bax and up-regulating that of anti-apoptotic protein Bcl-2. Moreover, l -NAT inhibited the expressions of TGF-β1/SMAD and matrix metalloproteinase 9 (MMP9) proteins, and reversed the expression of YAP1 protein in CCl 4 -induced liver fibrosis. Conclusion These results clearly demonstrated that l -NAT attenuated CCl 4 -induced liver fibrosis in mice, and this protective mechanism might relate to TGF-β1/SMAD and Hippo/YAP1 signaling pathway. Thus, this study provided data basis for the prevention and treatment of liver fibrosis.
研究领域:
药理学
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肝病学
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分子生物学
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF CARDIOLOGY
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2024
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IF 3.2
Zihan Wei,Ying Lu,Cheng Qian,Jing Li
Background Atrial fibrosis is associated with the pathogenesis of atrial fibrillation (AF). This study aims to discuss the function of circ_0079480 in atrial fibrosis and its underlying mechanism. Methods In vitro and in vivo models of atrial fibrosis were established by using angiotensin II (Ang II) to treat human atrial fibroblasts (HAFs) and C57/B6J mice. qRT-PCR and western blot were used to examine the mRNA and protein expression levels. CCK-8, EdU, cell strach, and transwell assays were performed to determine the proliferation and migration of HAFs. Dual-luciferase reporter and RIP/RNA pull-down assays were explored to identify the interaction of miR-338-3p and circ_0079480/THBS1. HE and Masson's trichrome staining experiments were performed to analyze the histopathological change in mice atrial tissues. Results Circ_0079480 expression was increased in AF patients' atrial tissues and Ang II-treated HAFs. Silencing circ_0079480 inhibited cell proliferation and migration and reduced fibrosis-associated gene expression in Ang II-treated HAFs. Circ_0079480 could target miR-338-3p to repress its expression. MiR-338-3p inhibitor blocked the inhibitory effects of circ_0079480 knockdown on HAFs proliferation, migration, and fibrosis. Thrombospondin-1 (THBS1) was confirmed as a downstream target of miR-338-3p, and circ_0079480 could sponge miR-338-3p to upregulate THBS1 expression. Moreover, silencing THBS1 suppressed Ang II-induced proliferation, migration, and fibrosis in HAFs. More importantly, depletion of circ_0079480 inactivated the THBS1/TGF-β1/Smad3 signaling by upregulating miR-338-3p. Mice experiments also confirmed the suppression of circ_0079480 knockdown on atrial fibrosis. Conclusion Circ_0079480 acts as a sponge of miR-338-3p to upregulate THBS1 expression and activate the TGF-β1/Smad3 signaling, finally promoting Ang II-induced atrial fibrosis.
研究领域:
心脏病学
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分子生物学
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细胞生物学
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PubMed
高影响因子
危险品化学品经营许可证（带存储）