血管活性肠肽在黑色素生成过程中的作用及相关机制研究
发布时间:2021-05-12 07:00
血管活性肠肽(Vasoactive intestinal peptide,简称VIP)是组成皮肤神经肽的重要成员之一,在不同的生物学条件下可由分布于表皮、基底层、真皮、汗腺以及毛囊等部位的感觉及自主神经末梢分泌。VIP是属于胃泌素/分泌素/胰高血糖素家族的分泌型多肽,由28个氨基酸组成并与有不同结构特点的G蛋白偶联受体-VIP受体1(VIP receptor 1,VIPR1)及VIPR2结合。VIP/VIPR系统的激活可介导血管扩张、血浆外渗、肥大细胞脱颗粒、免疫调节等多方面的生理过程。有研究报道VIP在特应性皮炎、银屑病等炎症性皮肤病的发病机制中起到重要的作用,而炎症性皮肤病的恢复期往往会导致炎症后色素沉着(Postinflammatoryhyperpigmentation,PIH)。目前有关 VIP 在黑色素生成过程中的作用方面研究尚未见报道。目的:探讨血管活性肠肽在黑色素生成过程中的作用以及相关机制。方法:1)利用VIP处理小鼠黑素瘤B16F10细胞,并以不同浓度分析细胞活性、黑色素含量,在不同时间段测定酪氨酸酶活性;2)分别利用RNA逆转录合成cDNA试验、实时定量聚合酶链反应...
【文章来源】:延边大学吉林省 211工程院校
【文章页数】:91 页
【学位级别】:博士
【文章目录】:
摘要
Abstract
Abbreviations
1. Introduction
2. Materials and methods
2.1 Antibodies and reagents
2.2 Cell culture
2.3 Cell viability assay
2.4 Melanin content measurement
2.5 Tyrosinase activity assay
2.6 Reverse transcription and real-time quantitative polymerase chain reaction
2.7 Western blotting
2.8 Gene silencing with siRNA
2.9 Statistical analysis
3. Results
3.1 VIP does not have cytotoxic effect on B16F10 cells
3.2 VIP increases melanin synthesis in B16F10 cells
3.3 VIP increases tyrosinase activity in B16F10 cells
3.4 VIP increases protein expression of MITF and tyrosinase in B16F10 cells
3.5 VIP increases mRNA expression of MITF and tyrosinase in B16F10 cells
3.6 VIP induces activation of CREB and PKA, but not p38 MAPK, Akt, or ERKphosphorylation in B16F10 cells
3.7 Suppression of the CREB pathway attenuated VIP induced stimulation ofmelanogenesis in B16F10 cells
3.8 Expression of VIP receptors in B16F10 cells
3.9 VIP induces melanogenesis in human epidermal melanocytes
4. Discussion
5. Conclusions
References
Review Paracrine regulation of melanogenesis
References
Acknowledgements
附录A:攻读学位期间发表的论文
附录B:攻读学位期间参加的学术活动
本文编号:3182964
【文章来源】:延边大学吉林省 211工程院校
【文章页数】:91 页
【学位级别】:博士
【文章目录】:
摘要
Abstract
Abbreviations
1. Introduction
2. Materials and methods
2.1 Antibodies and reagents
2.2 Cell culture
2.3 Cell viability assay
2.4 Melanin content measurement
2.5 Tyrosinase activity assay
2.6 Reverse transcription and real-time quantitative polymerase chain reaction
2.7 Western blotting
2.8 Gene silencing with siRNA
2.9 Statistical analysis
3. Results
3.1 VIP does not have cytotoxic effect on B16F10 cells
3.2 VIP increases melanin synthesis in B16F10 cells
3.3 VIP increases tyrosinase activity in B16F10 cells
3.4 VIP increases protein expression of MITF and tyrosinase in B16F10 cells
3.5 VIP increases mRNA expression of MITF and tyrosinase in B16F10 cells
3.6 VIP induces activation of CREB and PKA, but not p38 MAPK, Akt, or ERKphosphorylation in B16F10 cells
3.7 Suppression of the CREB pathway attenuated VIP induced stimulation ofmelanogenesis in B16F10 cells
3.8 Expression of VIP receptors in B16F10 cells
3.9 VIP induces melanogenesis in human epidermal melanocytes
4. Discussion
5. Conclusions
References
Review Paracrine regulation of melanogenesis
References
Acknowledgements
附录A:攻读学位期间发表的论文
附录B:攻读学位期间参加的学术活动
本文编号:3182964
本文链接:https://www.wllwen.com/yixuelunwen/pifb/3182964.html
最近更新
教材专著