目的检测膀胱癌中长链非编码RNA(long non-coding RNA,lncRNA)烟酰胺核苷酸转氢酶反义RNA1(nicotinamide nucleotide transhydrogenase antisense RNA 1,NNT-AS1)表达情况,研究其对膀胱癌细胞增殖、迁移、侵袭及肿瘤干细胞干性的影响及...目的检测膀胱癌中长链非编码RNA(long non-coding RNA,lncRNA)烟酰胺核苷酸转氢酶反义RNA1(nicotinamide nucleotide transhydrogenase antisense RNA 1,NNT-AS1)表达情况,研究其对膀胱癌细胞增殖、迁移、侵袭及肿瘤干细胞干性的影响及可能分子机制。方法实时荧光定量PCR(quantitative real-time PCR,qRT-PCR)法检测膀胱癌组织标本及细胞中LncRNA NNT-AS1表达情况;将膀胱癌细胞转染分为sh-NC组,sh-NNT-AS1组,sh-NNT-AS1+inh-582-5p组和sh-NNT-AS1+inh-582-5p+si-NCKAP1组。采用CCK-8法检测细胞增殖吸光度值(A值);Transwell实验检测细胞迁移、侵袭穿膜数;细胞成球实验检测干细胞干性。检索starBase和TargetScan数据库,并通过双荧光素酶报告基因实验预测验证LncRNA NNT-AS1和miR-582-5p,miR-582-5p与NCKAP1的靶向结合关系。Western blot检测膀胱癌干细胞标志蛋白(CD44,ALDH1A1,Oct4,Nanog)及Hippo-YAP/TAZ信号通路相关蛋白表达灰度值。结果与癌旁组织相比,膀胱癌组织中LncRNA NNT-AS1表达水平(0.34±0.07 vs 1.15±0.21)明显升高,差异有统计学意义(t=16.364,P<0.001)。与人正常膀胱上皮SV-HUC-1细胞(1.00±0.01)相比,膀胱癌细胞T24,5637,UM-UC-3和TCC-SUP中LncRNA NNT-AS1表达(6.03±0.17,4.66±0.36,5.47±0.26,3.02±0.20)明显升高,差异有统计学意义(t=17.472~51.160,均P<0.001)。与sh-NC组相比,在24,48和72 h时sh-NNT-AS1组细胞增值能力(A值)均显著降低(0.80±0.01 vs 1.07±0.06,1.18±0..07 vs 1.83±0.03,1.89±0.07 vs 2.53±0.06),差异有统计学意义(t=7.688,14.783,12.024,均P<0.05);sh-NNT-AS1组细胞迁移穿膜数(55.00±2.65个vs 354.30±7.84个)、细胞侵袭穿膜数(45.67±2.33个vs 303.00±9.07个)及膀胱癌干细胞成球数(20.85±2.17个vs 41.35±3.67个)显著降低,差异具有统计学意义(t=-62.641,-47.596,8.328,均P<0.001)。与sh-NC组相比,sh-NNT-AS1组细胞中CD44(0.04±0.01 vs 1.12±0.02),ALDH1A1(0.23±0.01 vs 1.16±0.05),Oct4(0.17±0.02 vs 1.10±0.04),Nanog(0.49±0.03 vs 1.24±0.03)的蛋白表达灰度值显著降低,差异具有统计学意义(t=83.656,31.591,36.019,30.619,均P<0.001)。与si-NC组相比,sh-NNT-AS1组CD44+CD133+细胞比例(9.30%±0.79%vs 88.50%±2.77%)明显降低,差异有统计学意义(t=-47.624,P<0.001)。双荧光素酶报告基因检测结果显示miR-582-5p为LncRNANNT-AS1靶基因,NCKAP1为miR-582-5p靶基因;LncRNA NNT-AS1靶向调控miR-582-5p/NCKAP1轴。与sh-NNT-AS1组相比,在24,48,72 h时sh-NNT-AS1+inh-582-5p组细胞增值能力(A值)均明显升高(0.98±0.03 vs 0.73±0.06,1.74±0.04 vs 1.22±0.05,2.33±0.16 vs 1.69±0.14),差异有统计学意义(t=5.977~11.628,均P<0.001)。与sh-NNT-AS1+inh-582-5p组相比,在24,48,72 h时sh-NNT-AS1+inh-582-5p+si-NCKAP1组细胞增值能力(A值)显著降低(0.69±0.04,1.01±0.07,1.39±0.08),差异有统计学意义(t=7.877~16.323,均P<0.001)。与sh-NNT-AS1组相比,sh-NNT-AS1+inh-582-5p组细胞迁移穿膜数(322.31±28.45个vs 81.42±13.22个)、细胞侵袭穿膜数(316.07±30.21个vs 92.13±12.65个)及膀胱癌干细胞成球数(38.55±2.20个vs 18.98±1.16个)显著增加,差异具有统计学意义(t=15.115,13.158,14.592,均P<0.001)。与sh-NNT-AS1组相比,sh-NNT-AS1+inh-582-5p组细胞CD44(1.05±0.08 vs 0.10±0.01),ALDH1A1(1.20±0.16 vs 0.22±0.02),Oct4(1.32±0.14 vs 0.19±0.03),Nanog(0.97±0.12 vs 0.15±0.04),YAP(1.29±0.11 vs 0.42±0.07)和TAZ(1.41±0.16 vs 0.35±0.05)蛋白表达灰度值均显著增加,差异具有统计学意义(t=10.650~21.243,均P<0.001)。与sh-NNT-AS1+inh-582-5p组相比,sh-NNT-AS1+inh-582-5p+si-NCKAP1组细胞迁移穿膜数(65.33±12.60个)、细胞侵袭穿膜数(71.08±15.19个)、膀胱癌干细胞成球数(11.36±1.05个)均显著降低,差异具有统计学意义(t=16.125,14.395,21.365,均P<0.001)。与sh-NNT-AS1+inh-582-5p组相比,sh-NNT-AS1+inh-582-5p+si-NCKAP1组细胞CD44(0.25±0.05),ALDH1A1(0.61±0.11),Oct4(0.22±0.08),Nanog(0.44±0.07),YAP(0.25±0.09)和TAZ(0.30±0.04)蛋白表达灰度值显著降低,差异具有统计学意义(t=6.412~17.889,均P<0.001)。结论膀胱癌中LncRNA NNT-AS1表达上调,其对膀胱癌细胞增殖、侵袭及肿瘤干细胞干性的影响,可能是通过调控miR-582-5p/NCKAP1分子轴,激活Hippo-YAP/TAZ信号通路完成。展开更多
Bone defects caused by diseases or surgery are a common clinical problem.Researchers are devoted to finding biological mechanisms that accelerate bone defect repair,which is a complex and continuous process controlled...Bone defects caused by diseases or surgery are a common clinical problem.Researchers are devoted to finding biological mechanisms that accelerate bone defect repair,which is a complex and continuous process controlled by many factors.As members of transcriptional costimulatory molecules,Yes-associated protein(YAP)and transcriptional co-activator with PDZ-binding motif(TAZ)play an important regulatory role in osteogenesis,and they affect cell function by regulating the expression of osteogenic genes in osteogenesis-related cells.Macrophages are an important group of cells whose function is regulated by YAP/TAZ.Currently,the relationship between YAP/TAZ and macrophage polarization has attracted increasing attention.In bone tissue,YAP/TAZ can realize diverse osteogenic regulation by mediating macrophage polarization.Macrophages polarize into M1 and M2 phenotypes under different stimuli.M1 macrophages dominate the inflammatory response by releasing a number of inflammatory mediators in the early phase of bone defect repair,while massive aggregation of M2 macrophages is beneficial for inflammation resolution and tissue repair,as they secrete many anti-inflammatory and osteogenesis-related cytokines.The mechanism of YAP/TAZ-mediated macrophage polarization during osteogenesis warrants further study and it is likely to be a promising strategy for bone defect repair.In this article,we review the effect of Hippo-YAP/TAZ signaling and macrophage polarization on bone defect repair,and highlight the regulation of macrophage polarization by YAP/TAZ.展开更多
Background:Curcumin is a plant polyphenol with antitumor properties and inhibits the development of colorectal cancer(CRC).However,as the molecular mechanism associated is still unclear,our study aimed to explore the ...Background:Curcumin is a plant polyphenol with antitumor properties and inhibits the development of colorectal cancer(CRC).However,as the molecular mechanism associated is still unclear,our study aimed to explore the underlying molecular mechanisms by which curcumin inhibits CRC.Methods:HT29 and SW480 cells were treated with curcumin or/and Doxycycline(DOX),and cell viability,colony forming ability,migration and invasion were confirmed by cell counting kit-8(CCK-8),colony forming,Transwell assays.And Yes-associated protein 1(YAP)and PDZ-binding motif(TAZ)signaling-related genes or proteins were analyzed using reverse transcription quantitative real-time PCR(RT-qPCR),western blot,and immunofluorescence assays.Then nude mice xenograft tumor model was constructed,YAP and Ki67 expressions were tested by immunohistochemistry(IHC)staining.Results:In our study,we proved that curcumin significantly inhibited the CRC cell viability,cell migration,and cell invasion abilities.In addition,curcumin inhibited YAP and Transcriptional coactivator with TAZ or the YAP/TAZ signaling axis in CRC cells.Further,in the nude mice model,curcumin treatment significantly decreased the size and weight of xenotransplant tumors.Conclusion:Therefore,curcumin significantly inhibited CRC development and invasion by regulating the YAP/TAZ signaling axis.展开更多
文摘目的检测膀胱癌中长链非编码RNA(long non-coding RNA,lncRNA)烟酰胺核苷酸转氢酶反义RNA1(nicotinamide nucleotide transhydrogenase antisense RNA 1,NNT-AS1)表达情况,研究其对膀胱癌细胞增殖、迁移、侵袭及肿瘤干细胞干性的影响及可能分子机制。方法实时荧光定量PCR(quantitative real-time PCR,qRT-PCR)法检测膀胱癌组织标本及细胞中LncRNA NNT-AS1表达情况;将膀胱癌细胞转染分为sh-NC组,sh-NNT-AS1组,sh-NNT-AS1+inh-582-5p组和sh-NNT-AS1+inh-582-5p+si-NCKAP1组。采用CCK-8法检测细胞增殖吸光度值(A值);Transwell实验检测细胞迁移、侵袭穿膜数;细胞成球实验检测干细胞干性。检索starBase和TargetScan数据库,并通过双荧光素酶报告基因实验预测验证LncRNA NNT-AS1和miR-582-5p,miR-582-5p与NCKAP1的靶向结合关系。Western blot检测膀胱癌干细胞标志蛋白(CD44,ALDH1A1,Oct4,Nanog)及Hippo-YAP/TAZ信号通路相关蛋白表达灰度值。结果与癌旁组织相比,膀胱癌组织中LncRNA NNT-AS1表达水平(0.34±0.07 vs 1.15±0.21)明显升高,差异有统计学意义(t=16.364,P<0.001)。与人正常膀胱上皮SV-HUC-1细胞(1.00±0.01)相比,膀胱癌细胞T24,5637,UM-UC-3和TCC-SUP中LncRNA NNT-AS1表达(6.03±0.17,4.66±0.36,5.47±0.26,3.02±0.20)明显升高,差异有统计学意义(t=17.472~51.160,均P<0.001)。与sh-NC组相比,在24,48和72 h时sh-NNT-AS1组细胞增值能力(A值)均显著降低(0.80±0.01 vs 1.07±0.06,1.18±0..07 vs 1.83±0.03,1.89±0.07 vs 2.53±0.06),差异有统计学意义(t=7.688,14.783,12.024,均P<0.05);sh-NNT-AS1组细胞迁移穿膜数(55.00±2.65个vs 354.30±7.84个)、细胞侵袭穿膜数(45.67±2.33个vs 303.00±9.07个)及膀胱癌干细胞成球数(20.85±2.17个vs 41.35±3.67个)显著降低,差异具有统计学意义(t=-62.641,-47.596,8.328,均P<0.001)。与sh-NC组相比,sh-NNT-AS1组细胞中CD44(0.04±0.01 vs 1.12±0.02),ALDH1A1(0.23±0.01 vs 1.16±0.05),Oct4(0.17±0.02 vs 1.10±0.04),Nanog(0.49±0.03 vs 1.24±0.03)的蛋白表达灰度值显著降低,差异具有统计学意义(t=83.656,31.591,36.019,30.619,均P<0.001)。与si-NC组相比,sh-NNT-AS1组CD44+CD133+细胞比例(9.30%±0.79%vs 88.50%±2.77%)明显降低,差异有统计学意义(t=-47.624,P<0.001)。双荧光素酶报告基因检测结果显示miR-582-5p为LncRNANNT-AS1靶基因,NCKAP1为miR-582-5p靶基因;LncRNA NNT-AS1靶向调控miR-582-5p/NCKAP1轴。与sh-NNT-AS1组相比,在24,48,72 h时sh-NNT-AS1+inh-582-5p组细胞增值能力(A值)均明显升高(0.98±0.03 vs 0.73±0.06,1.74±0.04 vs 1.22±0.05,2.33±0.16 vs 1.69±0.14),差异有统计学意义(t=5.977~11.628,均P<0.001)。与sh-NNT-AS1+inh-582-5p组相比,在24,48,72 h时sh-NNT-AS1+inh-582-5p+si-NCKAP1组细胞增值能力(A值)显著降低(0.69±0.04,1.01±0.07,1.39±0.08),差异有统计学意义(t=7.877~16.323,均P<0.001)。与sh-NNT-AS1组相比,sh-NNT-AS1+inh-582-5p组细胞迁移穿膜数(322.31±28.45个vs 81.42±13.22个)、细胞侵袭穿膜数(316.07±30.21个vs 92.13±12.65个)及膀胱癌干细胞成球数(38.55±2.20个vs 18.98±1.16个)显著增加,差异具有统计学意义(t=15.115,13.158,14.592,均P<0.001)。与sh-NNT-AS1组相比,sh-NNT-AS1+inh-582-5p组细胞CD44(1.05±0.08 vs 0.10±0.01),ALDH1A1(1.20±0.16 vs 0.22±0.02),Oct4(1.32±0.14 vs 0.19±0.03),Nanog(0.97±0.12 vs 0.15±0.04),YAP(1.29±0.11 vs 0.42±0.07)和TAZ(1.41±0.16 vs 0.35±0.05)蛋白表达灰度值均显著增加,差异具有统计学意义(t=10.650~21.243,均P<0.001)。与sh-NNT-AS1+inh-582-5p组相比,sh-NNT-AS1+inh-582-5p+si-NCKAP1组细胞迁移穿膜数(65.33±12.60个)、细胞侵袭穿膜数(71.08±15.19个)、膀胱癌干细胞成球数(11.36±1.05个)均显著降低,差异具有统计学意义(t=16.125,14.395,21.365,均P<0.001)。与sh-NNT-AS1+inh-582-5p组相比,sh-NNT-AS1+inh-582-5p+si-NCKAP1组细胞CD44(0.25±0.05),ALDH1A1(0.61±0.11),Oct4(0.22±0.08),Nanog(0.44±0.07),YAP(0.25±0.09)和TAZ(0.30±0.04)蛋白表达灰度值显著降低,差异具有统计学意义(t=6.412~17.889,均P<0.001)。结论膀胱癌中LncRNA NNT-AS1表达上调,其对膀胱癌细胞增殖、侵袭及肿瘤干细胞干性的影响,可能是通过调控miR-582-5p/NCKAP1分子轴,激活Hippo-YAP/TAZ信号通路完成。
基金supported by grants from the National Natural Science Foundation of China(No.82170997)the Project of Chengdu Science and Technology Bureau(No.2021-YF05-02054-SN)the Research Funding from West China School/Hospital of Stomatology Sichuan University,China(No.RCDWJS2020-6).
文摘Bone defects caused by diseases or surgery are a common clinical problem.Researchers are devoted to finding biological mechanisms that accelerate bone defect repair,which is a complex and continuous process controlled by many factors.As members of transcriptional costimulatory molecules,Yes-associated protein(YAP)and transcriptional co-activator with PDZ-binding motif(TAZ)play an important regulatory role in osteogenesis,and they affect cell function by regulating the expression of osteogenic genes in osteogenesis-related cells.Macrophages are an important group of cells whose function is regulated by YAP/TAZ.Currently,the relationship between YAP/TAZ and macrophage polarization has attracted increasing attention.In bone tissue,YAP/TAZ can realize diverse osteogenic regulation by mediating macrophage polarization.Macrophages polarize into M1 and M2 phenotypes under different stimuli.M1 macrophages dominate the inflammatory response by releasing a number of inflammatory mediators in the early phase of bone defect repair,while massive aggregation of M2 macrophages is beneficial for inflammation resolution and tissue repair,as they secrete many anti-inflammatory and osteogenesis-related cytokines.The mechanism of YAP/TAZ-mediated macrophage polarization during osteogenesis warrants further study and it is likely to be a promising strategy for bone defect repair.In this article,we review the effect of Hippo-YAP/TAZ signaling and macrophage polarization on bone defect repair,and highlight the regulation of macrophage polarization by YAP/TAZ.
基金This work was financially supported by the Second Batch of Medical and Health Science and Technology Plan(self-financing)Projects in Shantou in 2020,Shantou Science and Technology Bureau Document Shantou([2020]No.58).
文摘Background:Curcumin is a plant polyphenol with antitumor properties and inhibits the development of colorectal cancer(CRC).However,as the molecular mechanism associated is still unclear,our study aimed to explore the underlying molecular mechanisms by which curcumin inhibits CRC.Methods:HT29 and SW480 cells were treated with curcumin or/and Doxycycline(DOX),and cell viability,colony forming ability,migration and invasion were confirmed by cell counting kit-8(CCK-8),colony forming,Transwell assays.And Yes-associated protein 1(YAP)and PDZ-binding motif(TAZ)signaling-related genes or proteins were analyzed using reverse transcription quantitative real-time PCR(RT-qPCR),western blot,and immunofluorescence assays.Then nude mice xenograft tumor model was constructed,YAP and Ki67 expressions were tested by immunohistochemistry(IHC)staining.Results:In our study,we proved that curcumin significantly inhibited the CRC cell viability,cell migration,and cell invasion abilities.In addition,curcumin inhibited YAP and Transcriptional coactivator with TAZ or the YAP/TAZ signaling axis in CRC cells.Further,in the nude mice model,curcumin treatment significantly decreased the size and weight of xenotransplant tumors.Conclusion:Therefore,curcumin significantly inhibited CRC development and invasion by regulating the YAP/TAZ signaling axis.