Objective: The aim of this study was to investigate the impact of beta-elemene injection on the growth and beta-tubulin of human hepatocarcinoma HepG2 cells. Methods: Cell proliferation was assessed by MTT assay. Cell...Objective: The aim of this study was to investigate the impact of beta-elemene injection on the growth and beta-tubulin of human hepatocarcinoma HepG2 cells. Methods: Cell proliferation was assessed by MTT assay. Cell cycle distribution was detected by flow cytometry(FCM). The mRNA expression of beta-tubulin was measured by RT-PCR. Western blot analysis was used to determine protein expression of beta-tubulin and the polymerization of beta-tubulin. Results: Beta-elemene injection inhibited HepG2 cells proliferation in a dose- and time-dependent manner; FCM analysis indicated beta-elemene injection induced cell cycle arrested at S phase. RT-PCR and western-blot analysis showed that beta-elemene injection down-regulated beta-tubulin expression at both mRNA and protein levels, presenting a dose-dependent manner. Moreover, beta-elemene injection reduced the polymerization of microtubules in a dose-dependent manner. Conclusion: Beta-elemene injection can inhibit the proliferation of hepatoma HepG2 cells, the mechanism might be partly related to the down-regulation of beta-tubulin and inhibition of microtubular polymerization.展开更多
The structure of the piperidine derivative of elemene C20H33NCl3CCOOH was determined by Xray crystallography. The crystal belongs to the orthorhombic system, space group P212121, a=12.303(4), b=22.064(7), c=9.002(4),...The structure of the piperidine derivative of elemene C20H33NCl3CCOOH was determined by Xray crystallography. The crystal belongs to the orthorhombic system, space group P212121, a=12.303(4), b=22.064(7), c=9.002(4), V=2444(2)3, Z=4, Mr=450.88, Dc=1.23g/cm3, (MoK)=391cm-1, F(000)=960, Final R=0.050, Rw=0.067 for 2393 reflections I>3(I), GOF=1.91. The title compound is composed of trichloroacetate and the elemenyl piperidine cation. The latter contains two hexacyclic rings of elemene and piperidine, which adopt the chair conformations.\=展开更多
基金Supported by grants from the National Natural Science Foundation of China(No.81173615)the Scientific Research Foundation for the Returned Overseas Chinese Scholars and State Education Ministrythe Specialized Research Fund for the Doctoral Program of Higher Education(No.20102105120002)
文摘Objective: The aim of this study was to investigate the impact of beta-elemene injection on the growth and beta-tubulin of human hepatocarcinoma HepG2 cells. Methods: Cell proliferation was assessed by MTT assay. Cell cycle distribution was detected by flow cytometry(FCM). The mRNA expression of beta-tubulin was measured by RT-PCR. Western blot analysis was used to determine protein expression of beta-tubulin and the polymerization of beta-tubulin. Results: Beta-elemene injection inhibited HepG2 cells proliferation in a dose- and time-dependent manner; FCM analysis indicated beta-elemene injection induced cell cycle arrested at S phase. RT-PCR and western-blot analysis showed that beta-elemene injection down-regulated beta-tubulin expression at both mRNA and protein levels, presenting a dose-dependent manner. Moreover, beta-elemene injection reduced the polymerization of microtubules in a dose-dependent manner. Conclusion: Beta-elemene injection can inhibit the proliferation of hepatoma HepG2 cells, the mechanism might be partly related to the down-regulation of beta-tubulin and inhibition of microtubular polymerization.
文摘The structure of the piperidine derivative of elemene C20H33NCl3CCOOH was determined by Xray crystallography. The crystal belongs to the orthorhombic system, space group P212121, a=12.303(4), b=22.064(7), c=9.002(4), V=2444(2)3, Z=4, Mr=450.88, Dc=1.23g/cm3, (MoK)=391cm-1, F(000)=960, Final R=0.050, Rw=0.067 for 2393 reflections I>3(I), GOF=1.91. The title compound is composed of trichloroacetate and the elemenyl piperidine cation. The latter contains two hexacyclic rings of elemene and piperidine, which adopt the chair conformations.\=
