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The Anti-Inflammatory Effect of 6% HES 200/0.5 on RAW264.7 Cells Induced by LPS through HMGB1/NF-κB Signaling Pathway 6% HES 200/0.5通过HMGB1/NF-κB信号通路对LPS诱导的RAW264.7细胞的抗炎作用
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.245
J Zhang, Yongli Wang, Jianzhong Zhang, Shaoyan Huang
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引用次数: 0
MiR-148a-3p Regulates Stem Cell Osteogenic Differentiation and Enamel Development by Targeting Runt-Related Transcription Factor 2 and E-cadherin via the Wnt1/β-catenin Signaling Pathway MiR-148a-3p通过Wnt1/β-catenin信号通路靶向runt相关转录因子2和E-cadherin调控干细胞成骨分化和牙釉质发育
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.141
Huai-chun Chang, Tingting Jiang, Liang Kou, Duo Li, Xinchen Yu, Youqin Li, Lei Zhang
: We aimed to evaluate the regulatory effects of miR-148a-3p on stem cell osteogenic differentiation and enamel development by targeting runt-related transcription factor 2 (RUNX2) and E-cadherin, respectively. TargetScan software was utilized to predict the binding sites between miR-148a-3p and osteogenic marker gene RUNX2 or E-cadherin. The changes in miR-148a-3p expression during osteogenic differentiation of epidermal stem cells were detected. After transfec tion with miR-148a-3p mimics or miR-148a-3p inhibitor, epidermal stem cells were induced towards osteogenic differentia tion, and the changes in RUNX2 expression were measured. The changes in miR-148a-3p expression during enamel devel opment regulated by epidermal stem cells were determined. After liposome-mediated transfection with miR-148a-3p mimics or miR-148a-3p inhibitor, epidermal stem cells were induced towards ameloblast development. Cell proliferation and apoptosis abilities were tested using methyl thiazolyl tetrazolium assay and flow cytometry, respectively. The expres sion of miR-148a-3p was detected by RT-PCR. The protein expressions of Wnt1, β-catenin, RUNX2 and E-cadherin were measured by Western blotting. Epidermal stem cells differentiated into osteoblasts through osteogenic induction culture. On 5, 12, 15 and 30 d, epidermal stem cells gradually differentiated into osteoblasts through epithelial aggregation and depres sion, mesenchymal aggregation, and dentin and enamel secretion. After transfection, compared with negative control (NC) group, the cell viability of miR-148-3p group significantly decreased (P<0.05), and the apoptosis rate increased (P<0.01). The viability of miR-148-3p inhibitor group significantly increased (P<0.05), while the apoptosis rate reduced (P<0.01). The dual-luciferase reporter assay showed that miR-148a-3p targeted Wnt1. Compared with NC group, the expression of miR-148a-3p significantly rose in miR-148a-3p group (P<0.001), and the protein expression levels of Wnt1, β-catenin, RUNX2 and E-cadherin significantly decreased. Compared with NC group, the expression of miR-148a-3p in miR-148a-3p inhibitor group significantly decreased (P<0.05), and the protein expression levels of Wnt1, β-catenin, RUNX2 and E-cad herin significantly increased. MiR-148a-3p is highly expressed in and regulates osteogenic differentiation and enamel de velopment through targeting RUNX2 and E-cadherin respectively via the Wnt1/β-catenin pathway, which plays an impor tant role in cell differentiation, stem cell proliferation and enamel development.
我们旨在通过分别靶向runt相关转录因子2 (RUNX2)和E-cadherin来评估miR-148a-3p对干细胞成骨分化和牙釉质发育的调控作用。利用TargetScan软件预测miR-148a-3p与成骨标记基因RUNX2或E-cadherin的结合位点。检测miR-148a-3p在表皮干细胞成骨分化过程中的表达变化。转染miR-148a-3p模拟物或miR-148a-3p抑制剂后,诱导表皮干细胞向成骨分化,并测量RUNX2表达的变化。测定受表皮干细胞调控的釉质发育过程中miR-148a-3p的表达变化。脂质体介导转染miR-148a-3p模拟物或miR-148a-3p抑制剂后,诱导表皮干细胞向成釉细胞发育。分别采用甲基噻唑四氮唑法和流式细胞术检测细胞增殖和凋亡能力。RT-PCR检测miR-148a-3p的表达。Western blotting检测Wnt1、β-catenin、RUNX2、E-cadherin蛋白表达。表皮干细胞经成骨诱导培养分化为成骨细胞。在第5、12、15和30天,表皮干细胞通过上皮聚集和抑制、间充质聚集、牙本质和牙釉质分泌逐渐分化为成骨细胞。转染后,与阴性对照(NC)组比较,miR-148-3p组细胞活力显著降低(P<0.05),细胞凋亡率升高(P<0.01)。miR-148-3p抑制剂组细胞活力显著升高(P<0.05),细胞凋亡率显著降低(P<0.01)。双荧光素酶报告基因实验显示miR-148a-3p靶向Wnt1。与NC组比较,miR-148a-3p组miR-148a-3p的表达水平显著升高(P<0.001), Wnt1、β-catenin、RUNX2、E-cadherin的蛋白表达水平显著降低。与NC组比较,miR-148a-3p抑制剂组miR-148a-3p表达显著降低(P<0.05), Wnt1、β-catenin、RUNX2、E-cad herin蛋白表达水平显著升高。MiR-148a-3p通过Wnt1/β-catenin通路分别靶向RUNX2和E-cadherin,高表达调控成骨分化和牙釉质发育,在细胞分化、干细胞增殖和牙釉质发育中发挥重要作用。
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引用次数: 0
lncRNA ZNF710-AS1 Acts as a ceRNA for miR-146a-5p and miR-146b-5p to Accelerate Osteogenic Differentiation of PDLSCs by Upregulating the BMP6/Smad1/5/9 Pathway lncRNA ZNF710-AS1作为miR-146a-5p和miR-146b-5p的ceRNA,通过上调BMP6/Smad1/5/9通路加速PDLSCs的成骨分化
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.231
Ying Liu, D. Fu
: Multiple experimental pieces of evidence have confirmed that fully understanding the regulatory mechanisms of osteogenic differentiation of periodontal ligament stem cells (PDLSCs) can better promote and improve the ability of perio dontal tissues to regenerate and alleviate periodontal diseases. This study aimed to reveal whether the long noncoding RNA (lncRNA) ZNF710-AS1 plays a role in the osteogenic differentiation of PDLSCs and its molecular mechanisms. Microarray datasets GSE159507 and GSE159508 were retrieved from the Gene Expression Omnibus database and differentially ex pressed genes were identified using R language (limma package). The results revealed that the expression of ZNF710-AS1 and bone morphogenetic protein 6 (BMP6) was upregulated whereas that of miR-146a-5p/miR-146b-5p was downregulated during the osteogenic differentiation of PDLSCs. PDLSCs were successfully isolated and cultured in vitro . Osteogenic and adipogenic differentiation abilities were evaluated by performing alizarin red staining and oil red O staining, respectively. Overexpression of ZNF710-AS1 significantly increased the osteogenic differentiation ability of PDLSCs by upregulating the expression of BMP6 and phosphorylation-SMAD family member 1/5/9 (p-Smad1/5/9) and competitively sponging miR-146a-5p/miR-146b-5p and acting as a competing endogenous RNA (ceRNA). This study demonstrated that ZNF710-AS1 promotes the osteogenic differentiation of PDLSCs by upregulating BMP6/Smad1/5/9 expression and acting as a ceR NA for miR-146a-5p and miR-146b-5p.
多项实验证据证实,充分了解牙周韧带干细胞(periodontal ligament stem cells, PDLSCs)成骨分化的调控机制,可以更好地促进和提高牙周组织的再生能力,缓解牙周疾病。本研究旨在揭示长链非编码RNA (lncRNA) ZNF710-AS1是否在PDLSCs成骨分化中发挥作用及其分子机制。从Gene Expression Omnibus数据库中检索微阵列数据集GSE159507和GSE159508,使用R语言(limma package)对差异表达基因进行鉴定。结果显示,在PDLSCs成骨分化过程中,ZNF710-AS1和骨形态发生蛋白6 (bone morphogenetic protein 6, BMP6)表达上调,miR-146a-5p/miR-146b-5p表达下调。成功分离培养了PDLSCs。分别用茜素红染色和油红O染色评价成骨和成脂分化能力。ZNF710-AS1过表达通过上调BMP6和磷酸化- smad家族成员1/5/9 (p-Smad1/5/9)的表达,竞争性海绵miR-146a-5p/miR-146b-5p并作为竞争性内源性RNA (ceRNA),显著提高PDLSCs的成骨分化能力。本研究表明,ZNF710-AS1通过上调BMP6/Smad1/5/9的表达,并作为miR-146a-5p和miR-146b-5p的ceR NA,促进PDLSCs的成骨分化。
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引用次数: 1
Immunohistochemical Observation on the Distribution and Morphological Changes of GAP-43 Positive Structures in the Formation of Experimental Apical Periodontitis of Rat Molars 实验性大鼠磨牙根尖牙炎形成过程中GAP-43阳性结构分布及形态变化的免疫组化观察
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.155
Seiko Tanzawa, Kei Kitamura, N. Ishikawa, Yoshiki Tamiya, R. Sako, M. Furusawa, Hitoshi Yamamoto
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引用次数: 1
microRNA-324-3p Promotes Osteoblasts Differentiation via Suppressing SMAD7 microRNA-324-3p通过抑制SMAD7促进成骨细胞分化
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.263
Wei Xu, Rui Xia, Feng Tian, Lei Liu, Mengmeng Li, Shi-yuan Fang
: Fracture healing is a complex dynamic process that involves the balance between osteoblasts and osteoclasts. Sev-eral microRNAs (miRNAs) have been shown to participate in fracture healing. In this study, we investigated the role of miR-324-3p in osteoblast differentiation. MC3T3-E1 cell differentiation was induced by icariin, and miR-324-3p expression levels during cell differentiation were measured using qRT-PCR. Cell proliferation and differentiation were assessed to eval uate the function of miR-324-3p. Luciferase activity was used for target gene verification. During MC3T3-E1 differentia tion, miR-324-3p levels gradually increased over time. Further experiments showed that miR-324-3p overexpression significantly promoted cell viability, whereas miR-324-3p downregulation showed the opposite effect. For cells with miR-324-3p mimic, the levels of bone sialoprotein, Runx2, osteocalcin, and alkaline phosphatase activity were significantly elevated. SMAD7 is the target gene of miR-324-3p, and its level is gradually downregulated during MC3T3-E1 cell differentiation. MiR-324-3p may promote MC3T3-E1 cell differentiation by targeting SMAD7.
骨折愈合是一个复杂的动态过程,涉及到成骨细胞和破骨细胞之间的平衡。一些microRNAs (miRNAs)已被证明参与骨折愈合。在这项研究中,我们研究了miR-324-3p在成骨细胞分化中的作用。淫羊藿苷诱导MC3T3-E1细胞分化,采用qRT-PCR检测细胞分化过程中miR-324-3p的表达水平。通过评估细胞增殖和分化来评估miR-324-3p的功能。荧光素酶活性用于靶基因验证。在MC3T3-E1分化过程中,miR-324-3p水平随时间逐渐升高。进一步的实验表明,miR-324-3p过表达可显著提高细胞活力,而miR-324-3p下调则相反。对于含有miR-324-3p模拟物的细胞,骨唾液蛋白、Runx2、骨钙素水平和碱性磷酸酶活性显著升高。SMAD7是miR-324-3p的靶基因,其水平在MC3T3-E1细胞分化过程中逐渐下调。MiR-324-3p可能通过靶向SMAD7促进MC3T3-E1细胞分化。
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引用次数: 1
Effects of TGF-β on Growth and Invasion of Human Oral Squamous Cell Carcinoma Cell Lines TGF-β对人口腔鳞癌细胞生长和侵袭的影响
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.171
Hitoe Ishiguro-Katsuta, Y. Okada
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引用次数: 0
The Effect of Super-Hydrophilic Treatment on Zirconia Implant Osseointegration in Rats 超亲水处理对大鼠氧化锆种植体骨整合的影响
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.223
Tomoki Hirano, T. Miura, Yuto Otsu, Atsuro Harada, Y. Asami, Noriko Iijima, Yukari Oda, Yoshitaka Furuya, Taichi Ito, Hodaka Sasaki, H. Sekine
: Surface modifications of implants can improve the rate of osseointegration. The aim of this study was to deter mine the effect of super-hydrophilic modification on tetragonal zirconia polycrystals (TZP) implant surface and its subse quent effect on the rate of osseointegration. The TZP implants were rendered super-hydrophilic by the use of ultraviolet light (UV) or via atmospheric-pressure plasma treatments (PL), on their surface and were compared to control specimen that any surface modification wasn’t performed (NC). According to the surface wettability and x-ray photoelectron spec troscopy (XPS) analysis, the contact angle of water droplets on the surface of UV and PL was 0 degree, and their C1s peak was less than that of NC. The push-in test and histological analysis revealed that the super-hydrophilic modification en hanced the bone-implant integration and the formation of new bone around the TZP implants. Additionally, carbon removal and surface wettability enhancement likely improved the osseointegration rate. The study, therefore, demonstrates the de-sign of future TZP implants, particularly for dental applications. This study explored the effect of super-hydrophilic surface modifica tion on TZP implants and its subsequent effect on the rate of osseointe gration in rats. In this study, UV and PL were used. These treatments had no detrimental effect on the TZP implant surface and demonstrated sufficient capacity for carbon removal and super-hydrophilicity for TZP implants. UV and PL TZP implants demonstrated improved osseointe gration rate compared to NC. Super-hydrophilic surface treatments have been used to improve the osseointegration rate of titanium implants. Ultraviolet light exposure en hances protein adsorption, bone marrow cell adhesion, osteoblast differ -entiation, and osseointegration rate of titanium implants 12) . A previous study demonstrated that 4-week-aged, Ultraviolet light treated titanium surfaces increased bioactivity to a level comparable to or greater than that of freshly prepared surfaces, owing to the restoration of super-hy-drophilicity 13) . Plasma-treated titanium surfaces promoted osteoblast proliferation 14) and increased bone-to-implant contact 15,16) . Ultraviolet light treatment enhanced osteoblast adhesion, proliferation, and mineralization in zirconia implants 22) and improved bone-to-implant contact and osseointegration 23) . Additionally, Plasma treatment enhanced the bio-compatibility of zirconia implants 24–26) . The findings of this study are consistent with those reported in the previous studies.
:种植体表面修饰可提高骨整合率。本研究的目的是研究超亲水性修饰对四边形氧化锆多晶(TZP)种植体表面的影响及其对骨整合率的后续影响。使用紫外光(UV)或大气压等离子体处理(PL)使TZP植入物表面具有超亲水性,并与未进行任何表面修饰的对照标本(NC)进行比较。根据表面润湿性和x射线光电子能谱(XPS)分析,UV和PL表面的水滴接触角为0度,其C1s峰小于NC。推入试验和组织学分析显示,超亲水性修饰增强了TZP种植体周围骨与种植体的融合和新骨的形成。此外,碳的去除和表面润湿性的增强可能提高了骨整合率。因此,该研究证明了未来TZP种植体的设计,特别是牙科应用。本研究探讨了超亲水表面修饰对TZP种植体的影响及其对大鼠骨整合率的影响。本研究采用紫外光谱和荧光光谱。这些处理对TZP种植体表面没有不利影响,并且显示出TZP种植体具有足够的脱碳能力和超亲水性。与NC相比,UV和PL TZP种植体表现出更高的骨整合率。超亲水表面处理可提高钛种植体的骨整合率。紫外光照射可提高钛种植体的蛋白质吸附、骨髓细胞粘附、成骨细胞分化和骨整合率(12)。先前的一项研究表明,经过4周紫外光处理的钛表面将生物活性提高到与新制备的表面相当或更高的水平,这是由于超亲水性的恢复(13)。等离子体处理的钛表面促进了成骨细胞的增殖(14),并增加了骨与种植体的接触(15,16)。紫外光处理增强了氧化锆种植体中成骨细胞的粘附、增殖和矿化,并改善了骨与种植体的接触和骨整合。此外,等离子体处理增强了氧化锆植入体的生物相容性(24-26)。本研究的结果与以往的研究结果一致。
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引用次数: 0
Calcitonin Gene-related Peptide Inhibits Osteoclast Differentiation by Inducing the Negative Regulators MafB and Bcl6 降钙素基因相关肽通过诱导负调控因子MafB和Bcl6抑制破骨细胞分化
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.87
Kyoko Ishizuka
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引用次数: 0
Highly Expressed SPC25 Promotes the Stemness, Proliferation and EMT of Oral Squamous Cell Carcinoma Cells via Modulating the TGF-β Signaling Pathway 高表达的SPC25通过调控TGF-β信号通路促进口腔鳞状细胞癌细胞的干性、增殖和EMT
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.195
Qiufang Zhang, Zijun Zeng, Wen Xie, Zhimei Zeng
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引用次数: 0
Proviral Insertion in Murine Lymphomas 2 Promotes Inflammation and Inhibits Osteogenic Differentiation of Periodontal Ligament Cells via Regulating AMPK and NF-κB Signalings 前病毒插入小鼠淋巴瘤2通过调节AMPK和NF-κB信号促进炎症和抑制牙周韧带细胞成骨分化
IF 0.4 4区 医学 Q4 ENGINEERING, BIOMEDICAL Pub Date : 2022-01-01 DOI: 10.2485/jhtb.31.215
Fan Ye, Hui Xu
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引用次数: 0
期刊
Journal of Hard Tissue Biology
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