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牙胚发育

牙胚发育的相关文献在1989年到2022年内共计89篇,主要集中在口腔科学、基础医学、普通生物学 等领域,其中期刊论文82篇、会议论文5篇、专利文献4459篇;相关期刊38种,包括国际口腔医学杂志、华西口腔医学杂志、口腔医学等; 相关会议3种,包括中华口腔医学会口腔生物医学专业委员会口腔颌面发育和再生医学学术会议、第一届全国口腔组织工程与再生医学会议、2017全国口腔生物医学学术年会等;牙胚发育的相关文献由223位作者贡献,包括党平、牛忠英、聂敏媛等。

牙胚发育—发文量

期刊论文>

论文:82 占比:1.80%

会议论文>

论文:5 占比:0.11%

专利文献>

论文:4459 占比:98.09%

总计:4546篇

牙胚发育—发文趋势图

牙胚发育

-研究学者

  • 党平
  • 牛忠英
  • 聂敏媛
  • 董蕊
  • 赵征
  • 金岩
  • 侯铁舟
  • 史亮
  • 吴补领
  • 崔三哲
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 郑赫南; 周怡君; 王爽爽; 任飞龙; 范心怡; 史册; 刘红
    • 摘要: 目的:研究小鼠磨牙发育不同阶段牙胚组织中整合素β1和层黏连蛋白受体1(LAMR1)的表达模式,探讨二者在小鼠磨牙牙胚组织发育过程中可能的作用机制及其意义。方法:取胚胎期第13.5天(E13.5)、E14.5、E16.5、E18.5和出生后5 d(PN5)的小鼠,分别作为E13.5、E14.5、E16.5、E18.5和PN5组,每组5只,分离小鼠头部,固定、脱钙、脱水、包埋和切片,HE染色观察各阶段小鼠牙胚组织形态表现,免疫组织化学染色观察小鼠磨牙发育不同阶段牙胚组织中整合素β1和LAMR1蛋白的表达分布情况和表达水平。结果:HE染色,E13.5组小鼠牙胚组织发育处于蕾状期,上皮细胞突入到外胚间充质中,形成上皮芽,状如花蕾;E14.5组小鼠牙胚组织发育处于帽状期,上皮芽体积增大,称为帽状期成釉器,成釉器周围外胚间充质细胞密度增加,形成牙乳头;E16.5组小鼠牙胚组织发育处于钟状早期,成釉器进一步长大,形似吊钟,初步具有牙尖形态;E18.5组小鼠牙胚组织发育处于钟状晚期,成釉器进一步发育,内釉上皮细胞向前成釉细胞分化,形态由立方状变为高柱状;PN5组小鼠牙冠发育完成,形成颈环、上皮根鞘和上皮隔等结构,成釉细胞和成牙本质细胞分化成熟,呈高柱状整齐排列,已有釉质和牙本质形成。免疫组织化学染色,整合素β1和LAMR1蛋白在小鼠磨牙发育不同阶段牙胚组织中的上皮和牙乳头均有表达,且在各部位的表达强度随细胞分化的进程整体呈逐渐增强的趋势。PN5组小鼠牙胚组织成釉细胞中整合素β1蛋白表达水平高于E14.5、E16.5和E18.5组小鼠牙胚组织内釉上皮细胞/前成釉细胞(P<0.05);PN5组小鼠牙胚组织成牙本质细胞中整合素β1蛋白表达水平高于E14.5、E16.5和E18.5组小鼠牙胚组织前成牙本质细胞(P<0.05);E16.5和E18.5组小鼠牙胚组织内釉上皮细胞/前成釉细胞中LAMR1蛋白表达水平高于E14.5组小鼠牙胚组织内釉上皮细胞(P<0.05),且低于PN5组小鼠牙胚组织的成釉细胞(P<0.05);E18.5组小鼠牙胚组织前成牙本质细胞中LAMR1蛋白表达水平高于E16.5组小鼠牙胚组织前成牙本质细胞(P<0.05),且低于PN5组小鼠牙胚组织成牙本质细胞(P<0.05)。PN5组小鼠牙胚组织牙尖处较为成熟的成牙本质细胞中整合素β1和LAMR1蛋白表达水平高于牙尖之间和牙颈部尚未完全成熟的成牙本质细胞(P<0.05)。结论:整合素β1和LAMR1表达于小鼠磨牙发育不同阶段牙胚组织的基底膜、(前)成釉细胞和(前)成牙本质细胞中,二者可能参与细胞外基质信号的转导,并在成釉细胞和成牙本质细胞的分化和极性形成过程中起促进作用。
    • 张轶静; 刘波; 陈伟
    • 摘要: 胸腺素β10(Tβ10)是一种肌动蛋白结合蛋白,主要通过与G-肌动蛋白单体结合阻止其向F-肌动蛋白转化来发挥生物学活性.Tβ10在细胞增殖、细胞凋亡、细胞迁移、血管及淋巴管生成、唾液腺及牙胚发育、炎症及免疫反应过程中均发挥重要作用.Tβ10可作为相关疾病诊断的分子诊断标记物.Tβ10与多种肿瘤的临床分期、预后密切相关,可能是预测患者不良预后的独立危险因素;Tβ10可用于肿瘤的靶向治疗、软骨修复(如骨关节炎)及促进血管生成(如鹿Tβ10治疗糖尿病足)等;Tβ10可用于帮助化疗患者治疗分层并可能是增敏化疗的靶点.
    • 陈栋; 王莹莹; 李晓聪; 鲁方丽; 李强
    • 摘要: 目的 研究vps4b基因突变对牙齿发育相关蛋白——牙本质涎磷蛋白(DSPP)和Ⅰ型胶原蛋白(COL-Ⅰ)表达的影响.方法 取胚胎E13.5 d、E14.5 d、E16.5 d的胎鼠头部及出生后P2.5 d、P7 d的幼鼠下颌骨组织,石蜡包埋后获取第一磨牙牙胚组织切片,采用免疫组织化学染色法检测野生型小鼠和vps4b基因敲除小鼠牙胚中DSPP、COL-Ⅰ的表达.结果 野生鼠蕾状期和帽状期DSPP、COL-Ⅰ均未表达;钟状期DSPP在内釉上皮和牙乳头中有表达,COL-Ⅰ表达于牙乳头和牙囊;分泌期和矿化期DSPP、COL-Ⅰ在成釉细胞、成牙本质细胞、牙囊内均有表达,COL-Ⅰ在牙乳头内亦可见表达.小鼠vps4b基因敲除后,DSPP在钟状期牙乳头和分泌期牙乳头及牙囊内未见表达,COL-Ⅰ在钟状期及矿化期表达部位与野生型小鼠一致,分泌期在牙乳头的表达发生改变.结论vps4b基因在牙胚发育中发挥重要作用;DSPP、COL-Ⅰ的表达可能受vps4b基因的调控,并与vps4b共同调节牙齿牙本质的发育.
    • 李媛; 张颖丽; 孙宏晨; 史册; 张雪; 赵欢; 郝新青; 胡月; 刘苍维; 周怡君; 闫广兴
    • 摘要: Objective:To study the expressions of cell polarity related proteins CDC42 and PAR3 during tooth germ development in the mice,and to discuss their possible roles during tooth development in the mice.Methods:The whole heads were obtained from the mouse embryo on the days 13.5,14.5,16.5 and 18.5 (E13.5,E14.5,E16.5 and E18.5) and the mice on the postnatal days 1 (PN1) and 5 (PN5).The tissues were fixed in paraformaldehyde,decalcified,dehydrated,embedded in paraffin,and sectioned.The histology of tooth germ was observed by HE staining.The expressions of CDC42 and PAR3 during tooth germ development were detected by immunohistochemistry staining.Results:The HE staining results showed that E13.5,E14.5,E16.5 and E18.5were the bud stage,the cap stage,the early and the late bell stage of tooth germ development,respectively;the tooth germ of PN1 mice showed the matured odontoblasts and ameloblasts;the tooth germ of PN5 mice showed the completed tooth crown development.The immunohistochemistry staining results showed that CDC42 expressed in the tooth germ of the mice at E13.5,E14.5 and E16.5;the CDC42 expression at E 18.5 was reduced compared with E13.5,E14.5 and E16.5;CDC42 mainly expressed in the odontoblasts and ameloblasts of the tooth germ of the mice at PN1 and PN5;PAR3 weakly expressed in the tooth germ of the mice at E13.5 and E14.5,and it was increased at E16.5 and E18.5.At PN1 and PN5,the expressions of PAR3 were decreased compared with E18.5.Conclusion:CDC42 and PAR3 partieipat in the mouse tooth development;during the early stage of tooth germ development,they may be involved in the proliferation and migration of mouse dental germ;during the late stage,CD42 and PAR3 may be involved in the differentiation of the odontoblasts and the ameloblasts,especially in the establishment and maintenance of cell polarity.%目的:研究细胞极性相关蛋白CDC42和PAR3在小鼠牙胚发育过程中的表达,探讨其在牙胚发育中的可能作用.方法:取13.5、14.5、16.5和18.5 d(E13.5、E14.5、E16.5和E18.5)的小鼠胚胎以及出生后1和5d(PN1和PN5)的小鼠,分离头部,固定、脱钙、脱水、石蜡包埋、切片,HE染色观察牙胚的组织形态表现,采用免疫组织化学染色方法观察CDC42及PAR3在牙胚发育过程中的表达.结果:HE染色观察,E13.5~E18.5分别为小鼠牙胚发育的蕾状期、帽状期、钟状早期和钟状晚期,PN1小鼠的牙胚中可见分化成熟的成牙本质细胞和成釉细胞,PN5小鼠牙胚可见牙冠部发育完成.免疫组织化学染色,CDC42在E13.5、E14.5和E16.5小鼠牙胚中有广泛表达,在E18.5小鼠牙胚中表达较E13.5、E14.5和E16.5减少,在PN1和PN5小鼠牙胚中主要表达于成牙本质细胞和成釉细胞的分泌端;PAR3弱表达于E13.5和E14.5小鼠牙胚,在E16.5和E18.5小鼠牙胚上皮处表达明显增强,在PN1和PN5小鼠牙胚中表达较E18.5减弱.结论:CDC42和PAR3参与小鼠牙发育的过程,在牙胚发育早期可能参与小鼠牙胚的增殖及迁移,在牙胚发育晚期可能参与了成牙本质细胞和成釉细胞的分化,尤其在成牙本质细胞和成釉细胞极性的形成与维持中可能具有重要作用.
    • 陈栋; 鲁方丽; 李晓聪; 王莹莹; 李强
    • 摘要: 目的:探讨牙本质发育不良I型(dentin dyspepsia type I,DD-I)相关致病基因Ssuh2在小鼠牙胚发育各个时期中的作用。方法:采用HE确定小鼠下颌第一磨牙牙胚发育E13.5d、E14.5d、E16.5d、P2.5d、P7d的时期,采用免疫组化法观察SSUH2在各个时期的表达分布。结果:蕾状期(E13.5d),SSUH2在上皮细胞和间充质细胞均呈阳性表达;帽状期(E14.5d)和钟状早期(E16.5d),SSUH2均在基底膜、内、外釉上皮层、釉结、颈环呈强阳性表达。细胞分化及分泌期(P2.5d)和矿化期(P7d),SSUH2均在成釉细胞、成牙本质细胞、牙釉质、上皮根鞘中呈强阳性表达。结论:SSUH2在小鼠牙胚发育中均有表达,且各个时期略有差异,SSUH2可能参与小鼠的牙胚发育
    • 张春光; 聂敏媛; 孟庆岩; 王洪云; 安钰; 董蕊; 党平
    • 摘要: AIM:To screen the differentially expressed genes in early developing murine dental follicle tissue by whole genome microarray based on GO analysis.METHODS:The murine dental follicle at E17 and PN2 stages were dissected by LMD6000 system (Laser Micro Dissected system,Leica).To ensure the purity and the integrity of RNA samples,quality check was adopted by Bioanalyzer 2100 System,Agilent.For control and test RNAs,the synthesis of target cRNA probes and hybridization were performed using Agilent's Low RNA Input Linear Amplification kit.The fragmented cRNA was hybridized with assembled Agilent's Mouse Oligo Microarray.All microarray data normalization and selection of fold-changed genes were performed using GeneSpringGX 7.3.Functional annotation of the genes and GO analysis werer performed according to Gene OntologyTM Consortium by GeneSpringGX 7.3.Gene classification was based on searches by BioCarta,GenMAPP.RESULTS:A group of genes which were highly expressed in dental follicle compared to dental papilla tissue at both stages were obtained.More than 10 genes related to common biological functions such as "extracellular matrix" were obtained.CONCLUSION:The combination of laser microdissection and Microarray / bioinformatics analysis is a valuable means to obtain a global view of gene expression during the murine root / periodontal tissue development process.%目的:利用基于GO 分析的全基因组芯片技术筛选小鼠牙囊组织在个体发育不同时期的差异表达基因.方法:以激光显微切割技术获取胚胎17 d(E17)和出生后2 d(PN2)两个时期小鼠下颌第一磨牙的牙囊组织后,以改良Trizol法提取总RNA并制备荧光标记的cRNA;然后再以Aglient 小鼠全基因组表达芯片对比分析上述两时期的基因表达差异;最后以GeneSpringGX 7.3软件对所得结果进行归一化及倍数筛选,并分别以BioCarta、GenMAPP软件进行基因分类和GO分析.结果:①得到两个发育时期牙囊组织相对于牙乳头组织表达倍数都在10倍以上的一组基因;②得到细胞外基质等10余项常见生物功能相关的基因列表.结论:将激光显微切割以及基因表达芯片两种技术联合可用于小鼠牙周组织发育过程中差异表达基因.
    • 田海英; 孔磊; 聂敏媛; 王洪云; 董蕊; 党平
    • 摘要: 目的:观察基质金属蛋白酶-8(MMP-8)在小鼠胚胎不同时期,牙胚发育中的表达及分布,探讨其在小鼠牙胚发育过程中可能的作用.方法:制备小鼠胚胎期E13.5,E14.5,E16.5,E18.5天的下颌第一磨牙牙胚的石蜡切片,通过免疫组织化学染色技术检测MMP-8在这4个发育时期牙胚组织中的表达分布情况.结果:MMP-8在蕾状期(E13.5天)表达于成釉器表层的上皮细胞及周围的间充质细胞,在帽状期(E14.5天)表达于釉结,在钟状早期(E16.5天)表达于外釉上皮层、内釉上皮层、星网状层、中间层及牙囊,在钟状中期(E18.5天)表达于分化中成釉细胞和成牙本质细胞、中间层及外釉上皮层.结论:MMP-8在牙胚发育中可能调控成釉细胞和成牙本质细胞分化及前期硬组织的分泌、改建和成熟过程.%Objective:To investigate the expression and distribution of MMP-8 during tooth germ development ofmurine embryonic molar.Methods:Paraffin section of the 1 st mandibular molar tooth germ was prepared from the embryonic (E) 13.5,14.5,16.5,18.5 days.The distribution and expression of MMP-8 in tooth germ development of the murine embryonic molar were evaluate with using Immuno-histochemical analysis.Results:At the bud-stage (E 13.5d),MMP-8 expressed on the surface of enamel organ and the surrounding mesenchyme.At the cap-stage (E14.5d),MMP-8 expressed in the enamel knot.At the early bell-stage (E 16.5d),it was found in the inner and outer enamel epithelia,dental follicle,stellate reticulum,dental papilla of the tooth cusp and strata intermedium.At the E 18.5d,MMP-8 expressed in the outer enamel epithelium,strata intermedium,differentiating ameloblasts and differentiating odontoblasts.Conclusions:The expression patterns of MMP-8 during tooth germ development ofmurine embryonic molar suggests that it might participate in regulate ameloblast and odontoblast differentiation,secretion,reconstruction and maturity of the mineralized tissue in earlier staget.
    • 何梅; 吴家媛
    • 摘要: 背景:Wnt/β-catenin信号通路在牙齿发育过程中发挥重要的作用,其对牙根发育至关重要,参与牙根发育的启动,调控Hertwig's上皮根鞘的形成,根部成牙本质细胞和成牙骨质细胞的增殖与分化等重要过程.目的:文章对Wnt/β-catenin信号通路在牙根发育过程中的作用及影响进行综述.方法:通过检索CNKI,PubMed等数据库,分别以“Wnt/β-catenin信号通路,牙胚发育,牙齿,成牙本质细胞,成牙骨质细胞”的中文检索词和“Wnt/β-catenin signaling pathway,signaling pathway,tooth,root,Hertwig's epithelial root sheath,odontoblasts,cementoblast,SCAP”的英文检索词进行检索,根据文献纳入标准和排除标准,提取与Wnt/β-catenin信号通路调控牙根发育过程成牙本质细胞和成牙骨质细胞增殖、分化、Hertwig's上皮根鞘形成密切相关的文献41篇,利用以上文献进行综述.结果与结论:在牙根发育过程中,Wnt/β-catenin信号通路可以调控Hertwig's上皮根鞘的完整性,该信号通路的抑制将会导致Hertwig's上皮根鞘形成中断,继而诱导根部成牙本质细胞和成牙骨质细胞分化失败.该信号通路的缺失或过表达后,成牙本质细胞的增殖和分化受到抑制,根部牙本质形成障碍:而β-catenin信号对牙骨质分化调控结果可受细胞的来源或发育阶段,周围所处的微环境及Wnt信号相关激活剂和抑制剂浓度影响,出现对成牙骨质细胞不同程度的促进和抑制作用.%BACKGROUND:Wnt/β-catenin signaling pathway plays an important role in tooth development and especially in the root development,including the initiation of root development,Hertwig's epithelial root sheath formation,root odontoblast and cementoblast proliferation and differentiation process.OBJECTIVE:To explain the effect of Wnt/β-catenin signaling pathway on tooth root development.METHODS:CNKI and PubMed databases were searched for the literatures concerning odontoblast and cementoblast proliferation and differentiation as well as Hertwig's epithelial root sheath formation mediated by Wnt/β-catenin signaling pathway during root development.Finally 41 eligible articles were enrolled according to the inclusion and exclusion criteria.RESULTS AND CONCLUSION:During the tooth root development,Wnt/β-catenin signaling pathway can regulate Hertwig's epithelial root sheath integrity,so the inhibition of signaling pathway will block Hertwig's epithelial root sheath formation,further inducing the failure in root odontoblasts and cementoblast differentiation.Loss or overexpression of the signal transduction pathway will inhibit the proliferation and differentiation of odontoblasts,and appear with root dentin formation disorder.Effect of β-catenin signal on cementum differentiation can be regulated by cell origin or developmental stage,surrounding microenvironment and Wnt-related activator and inhibitor concentration,thereby promoting or inhibiting cementoblasts to different exents.
    • 陈蔚婷; 叶远舟; 蔡昀; 蒋备战
    • 摘要: 目的 检测β-catenin在小鼠下颌第一磨牙牙冠形成的表达,探讨其在小鼠牙胚发育过程中的作用.方法取孕11天(E11.5)、孕13.5天(E13.5)、孕14.5天(E14.5)、孕16.5天(E16.5)、孕18.5天(E18.5)的ICR胎鼠及出生后24h、出生后3天及出生后7天(PN0、PN3、PN7)的小鼠,常规组织学处理并制备下颌第一磨牙冠状或矢状切片,用免疫组织化学实验方法检测β-catenin在下颌第一磨牙相关组织中的表达情况.结果 β-catenin在小鼠下颌第一磨牙早期发育不同阶段呈现特异性的表达模式.在E11.5,上皮层可检测到β-catenin的表达;在E13.5,β-catenin的表达集中在向下方间充质凹陷的牙蕾上皮;在E14.5,在内釉上皮层及釉结节可以检测到β-catenin的强阳性表达;在E16.5、E18.5,在内外釉上皮、第二釉结节及邻近上皮的成牙本质细胞层可检测到β-catenin的表达.从出生后开始,在冠方的成牙本质细胞层、成釉细胞层,以及根方邻近上皮根鞘和上皮隔的牙乳头中的成牙本质细胞层内,可观察到β-catnein的阳性表达.结论 在牙胚发育过程中,β-catenin在牙源性上皮、釉结节及成牙本质细胞、成釉细胞中强表达,与牙冠形态发育及间充质细胞向成牙本质细胞分化密切相关.%Objective To detect the expression pattern of β-catenin in the first mandibular molar tooth germs of mice and its relation to early tooth development.Methods Serial paraffin sections of the first mandibular molars at different development stages of mice(E11.5,E13.5,E14.5,E16.5,E18.5,PN0,PN3,PN7)were made.The expression of β-catenin was analyzed by immunohistochemistry.Results The expression patterns of β-catenin in the first lower molars varied among the mice with different development stages.It was positively expressed in the dental epithelium at tooth initiation stage;and it was detected in the central areas of the tooth bud during the bud stage, while the immunostaining was focused on the inner and outer enamel epithelium, especially on the enamel knot, during the cap stage.At the bell stage, the β-catenin was strongly expressed in the outer and inner enamel epithelium and the second enamel knot.During the early postnatal stage, the expression of β-catenin was detected in the areas where the ameloblasts or the odontoblasts were located.Conclusion The expression of β-catenin was in a temporal-spatial specific pattern;particularly, it is strongly expressed in the dental epithelial, enamel knot and odontoblasts with the development of tooth germ.This result indicates that-catenin may be involved in tooth morphogenesis of the mouse molars and the biological process of the odontoblast differentiation.
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