RESUMO
<p><b>OBJECTIVE</b>To investigate the expression of tumor stem cell marker CD133 and endothelin-converting enzymes (ECE) in non-small cell lung carcinoma (NSCLC) and their association with NSCLC lymphoid metastasis.</p><p><b>METHODS</b>CD133 and ECE expressions was detected immunohistochemically in the specimens from 77 patients with NSCLC, and the association of CD133 and ECE expressions with the tumor size, histological type, differentiation, lymphoid metastasis, and prognosis of NSCLC was analyzed.</p><p><b>RESULTS</b>The positive expression rate of CD133 and ECE was 51.9% (40/77) and 45.5% (35/77) in these specimens, respectively. Both CD133 and ECE expressions were associated positively with lymphoid metastasis (r=0.246 and 0.339, P<0.05), and inversely with the survival time of the patients (P<0.05). CD133 and ECE expressions were not related to tumor size, histological type, and differentiation of the tumor (P>0.05). CD133 expression was associated positively with ECE expression in NSCLC (r=0.249, P<0.05).</p><p><b>CONCLUSION</b>CD133 and ECE expressions are associated with lymphoid metastasis and prognosis of NSCLC, and their overexpression often suggests unfavorable prognosis of NSCLC.</p>
Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Antígeno AC133 , Antígenos CD , Ácido Aspártico Endopeptidases , Carcinoma Pulmonar de Células não Pequenas , Metabolismo , Patologia , Enzimas Conversoras de Endotelina , Glicoproteínas , Imuno-Histoquímica , Neoplasias Pulmonares , Metabolismo , Patologia , Metástase Linfática , Metaloendopeptidases , Peptídeos , PrognósticoRESUMO
<p><b>OBJECTIVE</b>To investigate 7 gene expression profile associated with inflammation and oxidative stress in vascular endothelium injure of rats with deficiency of vital energy or qi stagnation, and the effect of Tongxinluo on gene expression profile.</p><p><b>METHOD</b>The model of vascular endothelium injury of rats with deficiency of vital energy or qi stagnation were established by using high L-methionine, with load-carrying swimming or being fastened, respectively. RT-PCR and SAGE database which is available in NCBI, were used to analyze the changes of 7 gene expression related with inflammation and oxidative stress in endothelium injure and the effect of Tongxinluo on the gene expression profile.</p><p><b>RESULT</b>Compared with control group, the gene expression of inflammation related COX-1, COX-2, oxidative stress related iNOS, SOD and blood vessel vasomotion related eNOS, ECE, increased in deficiency of vital energy group (P < 0.05 or P < 0.01), and the gene expression decreased with Tongxinluo treatment (P < 0.05 or P < 0.01). The gene expression of COX-1, COX-2, iNOS and eNOS, ECE, increased (P < 0.01), but the gene expression of PCS and SOD decreased (P < 0.01), in qi stagnation group, and the disorder of gene expression improved with treatment of Tongxinluo (P < 0.01).</p><p><b>CONCLUSION</b>The 7 gene expression related to vascular endothelium injure were not the same in rat with deficiency of vital energy or qi stagnation, and Tongxinluo could regulate the disorder of the gene expression, protecting vascular endothelium from injure.</p>
Assuntos
Animais , Masculino , Ratos , Ácido Aspártico Endopeptidases , Genética , Ciclo-Oxigenase 1 , Genética , Ciclo-Oxigenase 2 , Genética , Combinação de Medicamentos , Medicamentos de Ervas Chinesas , Química , Farmacologia , Enzimas Conversoras de Endotelina , Endotélio Vascular , Ferimentos e Lesões , Expressão Gênica , Perfilação da Expressão Gênica , Medicina Tradicional Chinesa , Metaloendopeptidases , Genética , Óxido Nítrico Sintase Tipo II , Genética , Óxido Nítrico Sintase Tipo III , Genética , Metabolismo , Qi , Distribuição Aleatória , Ratos Sprague-Dawley , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Superóxido Dismutase , GenéticaRESUMO
<p><b>AIM</b>To investigate the molecular mechanisms of saponins from the rhizome of Anemarrhena asphodeloides Bunge.</p><p><b>METHODS</b>Oligonucleotide microarrays consisting of 87 probes representing 87 human cardiovascular disease-related genes were constructed. Effects of saponins on gene expression in human umbilical vein endothelial cells were analyzed by comparing hybridization of Cy 5-labeled cDNAs from saponins-treated human umbilical vein endothelial cells and Cy 3-labeled cDNAs from untreated human umbilical vein endothelial cells.</p><p><b>RESULTS</b>The results indicate that angiotensinogen gene, alpha 2A-adrenoceptor gene and endothelin-converting enzyme 1 gene were downregulated 2.8, 1.9 and 3.1 folds respectively after human umbilical vein endothelial cells were incubated in medium containing 80 mg.L-1 saponins.</p><p><b>CONCLUSION</b>These results suggest that saponins may have beneficial effect on cardiovascular diseases by modulating the function of vein endothial cells and microarray can be used to investigate the biological action of extracts from traditional Chinese medicine.</p>