目的阐明miR-139在骨肉瘤细胞中的表达水平及其对骨肉瘤细胞增殖和凋亡的影响。方法采用qRT-PCR检测miR-139在永生化成骨细胞系hF OB 1.19及骨肉瘤细胞系SOSP-9607、MG-63中的表达情况;采用5-氮杂-2'-脱氧胞苷(5Aza-CdR)和曲古抑菌...目的阐明miR-139在骨肉瘤细胞中的表达水平及其对骨肉瘤细胞增殖和凋亡的影响。方法采用qRT-PCR检测miR-139在永生化成骨细胞系hF OB 1.19及骨肉瘤细胞系SOSP-9607、MG-63中的表达情况;采用5-氮杂-2'-脱氧胞苷(5Aza-CdR)和曲古抑菌素A(TSA)处理骨肉瘤细胞,通过qRT-PCR检测miR-139的表达变化;将miR-139模拟物转染入骨肉瘤细胞中,通过MTT实验检测细胞增殖能力的变化,通过流式细胞术分析细胞凋亡的变化,通过Western blot检测Cyclin D1表达和Caspase-3活化的变化。结果与永生化成骨细胞系hF OB 1.19相比,miR-139在SOSP-9607和MG-63骨肉瘤细胞中的表达水平显著降低(P<0.01);5-Aza-CdR对SOSP-9607和MG-63骨肉瘤细胞中miR-139的表达没有影响,而TSA能够促进miR-139的表达(P<0.01);miR-139模拟物能够抑制骨肉瘤细胞的增殖能力,诱导骨肉瘤细胞凋亡,并抑制Cyclin D1的表达、促进Caspase3的激活(P<0.05或P<0.01)。结论 miR-139在骨肉瘤细胞中低表达,而过表达miR-139能够抑制骨肉瘤细胞的增殖并诱导其凋亡。展开更多
Two new macrocyclic compounds, [Cu2(L)2](ClO4)4·2CH3OH (1) and [Cu(L)](ClO4)2·2H2O (2) (L = 1,3,10,12,15,18-hexaazatetracyclodocosane) were synthesized by condensation reactions involving amines and formalde...Two new macrocyclic compounds, [Cu2(L)2](ClO4)4·2CH3OH (1) and [Cu(L)](ClO4)2·2H2O (2) (L = 1,3,10,12,15,18-hexaazatetracyclodocosane) were synthesized by condensation reactions involving amines and formaldehyde in the presence of copper anion. Compound 1 crystallizes in triclinic, space group Pí with a = 10.442(2), b = 14.197(3), c = 17.388(4), α = 91.218(4), β = 90.69(3), γ = 93.756(4)o, V = 2520.4(9)3, Z = 2, F(000) = 1260, Dc = 1.589 Mg/m3, Mr = 1205.92, μ = 1.137 mm-1, λ = 0.71073, the final R = 0.0668 and wR = 0.1573 for 9703 observed reflections with I > 2σ(I). Compound 2 crystallizes in monoclinic, space group C2/c with a = 16.911(2), b = 11.4172(15), c = 27.059(4), β = 107.787(2)o, V = 4974.7(12)3, Z = 8, F(000) = 2504, Dc = 1.610 Mg/m3, Mr = 602.92, μ = 1.155 mm-1, λ = 0.71073 , the final R = 0.0419 and wR = 0.1131 for 4374 observed reflections with I > 2σ(I).展开更多
The title compound 3,3'-(4-dimethylaminobenzylidene)-bis-(4-hydroxycoumarin) 3 was synthesized by the reaction of 4-hydroxycoumarin with 4-dimethylaminobenzaldehyde, and its chemical structure was determined by X-...The title compound 3,3'-(4-dimethylaminobenzylidene)-bis-(4-hydroxycoumarin) 3 was synthesized by the reaction of 4-hydroxycoumarin with 4-dimethylaminobenzaldehyde, and its chemical structure was determined by X-ray single-crystal diffraction. It crystallizes in monoclinic, space group P21/n with a = 11.698(2), b = 10.882(2), c = 16.594(3) , β = 90.69(3)o, V = 2112.1(7) 3, Z = 4, F(000) = 952, Dc = 1.432 Mg/m3, Mr = 455.45, μ = 0.102 mm-1, λ = 0.71073 , the final R = 0.0779 and wR = 0.2143 for 3031 observed reflections with I > 2σ(I).展开更多
文摘目的阐明miR-139在骨肉瘤细胞中的表达水平及其对骨肉瘤细胞增殖和凋亡的影响。方法采用qRT-PCR检测miR-139在永生化成骨细胞系hF OB 1.19及骨肉瘤细胞系SOSP-9607、MG-63中的表达情况;采用5-氮杂-2'-脱氧胞苷(5Aza-CdR)和曲古抑菌素A(TSA)处理骨肉瘤细胞,通过qRT-PCR检测miR-139的表达变化;将miR-139模拟物转染入骨肉瘤细胞中,通过MTT实验检测细胞增殖能力的变化,通过流式细胞术分析细胞凋亡的变化,通过Western blot检测Cyclin D1表达和Caspase-3活化的变化。结果与永生化成骨细胞系hF OB 1.19相比,miR-139在SOSP-9607和MG-63骨肉瘤细胞中的表达水平显著降低(P<0.01);5-Aza-CdR对SOSP-9607和MG-63骨肉瘤细胞中miR-139的表达没有影响,而TSA能够促进miR-139的表达(P<0.01);miR-139模拟物能够抑制骨肉瘤细胞的增殖能力,诱导骨肉瘤细胞凋亡,并抑制Cyclin D1的表达、促进Caspase3的激活(P<0.05或P<0.01)。结论 miR-139在骨肉瘤细胞中低表达,而过表达miR-139能够抑制骨肉瘤细胞的增殖并诱导其凋亡。
文摘Two new macrocyclic compounds, [Cu2(L)2](ClO4)4·2CH3OH (1) and [Cu(L)](ClO4)2·2H2O (2) (L = 1,3,10,12,15,18-hexaazatetracyclodocosane) were synthesized by condensation reactions involving amines and formaldehyde in the presence of copper anion. Compound 1 crystallizes in triclinic, space group Pí with a = 10.442(2), b = 14.197(3), c = 17.388(4), α = 91.218(4), β = 90.69(3), γ = 93.756(4)o, V = 2520.4(9)3, Z = 2, F(000) = 1260, Dc = 1.589 Mg/m3, Mr = 1205.92, μ = 1.137 mm-1, λ = 0.71073, the final R = 0.0668 and wR = 0.1573 for 9703 observed reflections with I > 2σ(I). Compound 2 crystallizes in monoclinic, space group C2/c with a = 16.911(2), b = 11.4172(15), c = 27.059(4), β = 107.787(2)o, V = 4974.7(12)3, Z = 8, F(000) = 2504, Dc = 1.610 Mg/m3, Mr = 602.92, μ = 1.155 mm-1, λ = 0.71073 , the final R = 0.0419 and wR = 0.1131 for 4374 observed reflections with I > 2σ(I).
文摘The title compound 3,3'-(4-dimethylaminobenzylidene)-bis-(4-hydroxycoumarin) 3 was synthesized by the reaction of 4-hydroxycoumarin with 4-dimethylaminobenzaldehyde, and its chemical structure was determined by X-ray single-crystal diffraction. It crystallizes in monoclinic, space group P21/n with a = 11.698(2), b = 10.882(2), c = 16.594(3) , β = 90.69(3)o, V = 2112.1(7) 3, Z = 4, F(000) = 952, Dc = 1.432 Mg/m3, Mr = 455.45, μ = 0.102 mm-1, λ = 0.71073 , the final R = 0.0779 and wR = 0.2143 for 3031 observed reflections with I > 2σ(I).
