GPR126也称ADGRG6,是研究较为深入的黏附类G蛋白偶联受体(adhesion G protein-coupled receptors,aGPCRs)成员之一。最初,GPR126被认为是一种与肌肉发育相关的受体,主要在肌肉和骨骼系统中表达;随着研究的深入,人们发现GPR126在哺乳动...GPR126也称ADGRG6,是研究较为深入的黏附类G蛋白偶联受体(adhesion G protein-coupled receptors,aGPCRs)成员之一。最初,GPR126被认为是一种与肌肉发育相关的受体,主要在肌肉和骨骼系统中表达;随着研究的深入,人们发现GPR126在哺乳动物多个组织和器官中表达,并参与胚胎发育、神经系统发育和细胞外基质相互作用等多种生物学过程。GPR126具有典型的aGPCRs的七次跨膜螺旋结构,可介导跨膜信号转导,参与调控细胞增殖、分化和迁移等多种细胞过程。近年来,GPR126新配体的发现为探索其生理功能提供了有价值的工具。然而,目前GPR126在各类疾病中的生物学功能及其作为治疗靶点的潜力仍待进一步研究。该文重点描述GPR126的结构、物种间差异性与保守性、信号转导及其生物学功能,为未来GPR126的研究提供思路和参考。展开更多
Dwarfing is useful to reduce plant height,when breeding high-yielding and non-lodging crops.In this study,a set of natural storage protein subunit-null dwarf mutants of soybean was reported that showed strongly reduce...Dwarfing is useful to reduce plant height,when breeding high-yielding and non-lodging crops.In this study,a set of natural storage protein subunit-null dwarf mutants of soybean was reported that showed strongly reduced plant stature and deficiency in various 7S and 11S subunits,designated as snd1 mutants.Under normal growth conditions,the snd1 mutants showed a severe dwarf phenotype,with plant height of about 25 cm.Compared with wild-type DN47,the mutant snd1 exhibited no obvious morphological differences at the early stage of development.All the snd1 mutants examined had fewer nodes and shorter than normal internodes;the leaves were similar in shape to normal parents,but were dark-green at the mature stage.The flower size was similar to DN47;however,the flowering period was shorter than in the wild-type.Significant variation was noted for protein content,oil content of the seeds and size of seeds(weight of 100 seeds)among 17 snd1 dwarf lines.Genetic analysis indicated that the dwarfism of snd1 was controlled by a single recessive gene.The snd1 dwarf mutant had markedly different dynamic levels of the endogenous hormones gibberellin(GA),brassinosteroid,indole-3-acetic acid and abscisic acid,at the seedling stage.Exogenous GA3 treatment led to recovery of the plant height phenotype of the snd1 mutant;GA3 at 0.1 mm had the largest effect on enhancing plant height.Using molecular markers,snd1 gene was approximately mapped in an interval of 603 kb between markers Satt166 and Satt561 on chromosome 19.Snd1 mutant provided valuable material for hypoallergenic soybean breeding and the snd1 gene might be a novel gene related to plant height in soybean.展开更多
目的:探讨G蛋白信号蛋白家族的调节因子17(regulator of G protein signaling 17,RGS17)在肾透明细胞癌患者中的临床意义和功能机制。方法:获得癌症基因组图谱(The Cancer Genome Atlas,TCGA)数据库中肾透明细胞癌(kidney renal clear c...目的:探讨G蛋白信号蛋白家族的调节因子17(regulator of G protein signaling 17,RGS17)在肾透明细胞癌患者中的临床意义和功能机制。方法:获得癌症基因组图谱(The Cancer Genome Atlas,TCGA)数据库中肾透明细胞癌(kidney renal clear cell carcinoma,KIRC)的RNAseq数据和相应的临床信息。利用R软件研究RGS17在KIRC中的表达差异及其与临床特征的关系。使用免疫组化及PCR进行验证。采用Kaplan-Meier(K-M)分析、受试者工作特征(receiver operating characteristic,ROC)曲线、单因素COX分析、多因素COX分析来评估患者的生存和预后,并构建nomogram模型。使用STRING进行RGS17相关基因的PPI网络构建,并进行GO及KEGG富集分析。并采用RT-qPCR、Western blot、CCK-8、Transwell和划痕实验等方法检测RGS17对ACHN细胞增殖迁移及cAMP信号通路的影响。结果:RGS17在KIRC中高表达,且RGS17的高表达与更高的T分期、临床分期、肿瘤转移显著相关。K-M生存分析显示,RGS17上调与KIRC患者总生存期、无疾病进展生存期下降密切相关。ROC曲线表明RGS17能较好的区分正常和KIRC患者,并在预测KIRC患者的预后方面具有一定的准确性。RGS17是KIRC独立预后因素。使用RGS17表达、临床分期、病理分级构建nomogram预后模型能较好预测1、3、5年生存率。RGS17敲低显著抑制ACHN细胞的增殖、迁移和侵袭能力。另外,RGS17敲低能够抑制cAMP信号通路的激活。结论:RGS17在肾透明细胞癌中具有促癌基因的作用,其可能通过激活cAMP信号通路促进肾透明细胞癌的进展。展开更多
文摘GPR126也称ADGRG6,是研究较为深入的黏附类G蛋白偶联受体(adhesion G protein-coupled receptors,aGPCRs)成员之一。最初,GPR126被认为是一种与肌肉发育相关的受体,主要在肌肉和骨骼系统中表达;随着研究的深入,人们发现GPR126在哺乳动物多个组织和器官中表达,并参与胚胎发育、神经系统发育和细胞外基质相互作用等多种生物学过程。GPR126具有典型的aGPCRs的七次跨膜螺旋结构,可介导跨膜信号转导,参与调控细胞增殖、分化和迁移等多种细胞过程。近年来,GPR126新配体的发现为探索其生理功能提供了有价值的工具。然而,目前GPR126在各类疾病中的生物学功能及其作为治疗靶点的潜力仍待进一步研究。该文重点描述GPR126的结构、物种间差异性与保守性、信号转导及其生物学功能,为未来GPR126的研究提供思路和参考。
基金Supported by the Ministry of Science and Technology of China(2016YFD0100500)Funding from Harbin Science and Technology Bureau(2016RQYXJ018,2017RAQXJ104)+4 种基金the Key Laboratory of Soybean Biology in the Chinese Ministry of Education,Northeast Agricultural University(SB17A01)National Natural Science Foundation of China(31801386)Heilongjiang Natural Science Foundation(LC2018008)Heilongjiang General Young Innovative Talents Training Plan(UNPYSCT-2018158)Certificate of China Postdoctoral Science Foundation Grant(2018M641839)
文摘Dwarfing is useful to reduce plant height,when breeding high-yielding and non-lodging crops.In this study,a set of natural storage protein subunit-null dwarf mutants of soybean was reported that showed strongly reduced plant stature and deficiency in various 7S and 11S subunits,designated as snd1 mutants.Under normal growth conditions,the snd1 mutants showed a severe dwarf phenotype,with plant height of about 25 cm.Compared with wild-type DN47,the mutant snd1 exhibited no obvious morphological differences at the early stage of development.All the snd1 mutants examined had fewer nodes and shorter than normal internodes;the leaves were similar in shape to normal parents,but were dark-green at the mature stage.The flower size was similar to DN47;however,the flowering period was shorter than in the wild-type.Significant variation was noted for protein content,oil content of the seeds and size of seeds(weight of 100 seeds)among 17 snd1 dwarf lines.Genetic analysis indicated that the dwarfism of snd1 was controlled by a single recessive gene.The snd1 dwarf mutant had markedly different dynamic levels of the endogenous hormones gibberellin(GA),brassinosteroid,indole-3-acetic acid and abscisic acid,at the seedling stage.Exogenous GA3 treatment led to recovery of the plant height phenotype of the snd1 mutant;GA3 at 0.1 mm had the largest effect on enhancing plant height.Using molecular markers,snd1 gene was approximately mapped in an interval of 603 kb between markers Satt166 and Satt561 on chromosome 19.Snd1 mutant provided valuable material for hypoallergenic soybean breeding and the snd1 gene might be a novel gene related to plant height in soybean.
文摘目的:探讨G蛋白信号蛋白家族的调节因子17(regulator of G protein signaling 17,RGS17)在肾透明细胞癌患者中的临床意义和功能机制。方法:获得癌症基因组图谱(The Cancer Genome Atlas,TCGA)数据库中肾透明细胞癌(kidney renal clear cell carcinoma,KIRC)的RNAseq数据和相应的临床信息。利用R软件研究RGS17在KIRC中的表达差异及其与临床特征的关系。使用免疫组化及PCR进行验证。采用Kaplan-Meier(K-M)分析、受试者工作特征(receiver operating characteristic,ROC)曲线、单因素COX分析、多因素COX分析来评估患者的生存和预后,并构建nomogram模型。使用STRING进行RGS17相关基因的PPI网络构建,并进行GO及KEGG富集分析。并采用RT-qPCR、Western blot、CCK-8、Transwell和划痕实验等方法检测RGS17对ACHN细胞增殖迁移及cAMP信号通路的影响。结果:RGS17在KIRC中高表达,且RGS17的高表达与更高的T分期、临床分期、肿瘤转移显著相关。K-M生存分析显示,RGS17上调与KIRC患者总生存期、无疾病进展生存期下降密切相关。ROC曲线表明RGS17能较好的区分正常和KIRC患者,并在预测KIRC患者的预后方面具有一定的准确性。RGS17是KIRC独立预后因素。使用RGS17表达、临床分期、病理分级构建nomogram预后模型能较好预测1、3、5年生存率。RGS17敲低显著抑制ACHN细胞的增殖、迁移和侵袭能力。另外,RGS17敲低能够抑制cAMP信号通路的激活。结论:RGS17在肾透明细胞癌中具有促癌基因的作用,其可能通过激活cAMP信号通路促进肾透明细胞癌的进展。
