Effects of emodin on proliferation cycle and apoptotic gene of human lung adenocarcinoma cell line Anip 973 / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To study the suppressive role of emodin on the growth and its effect on the proliferation cycle and apoptotic gene of human lung adenocarcinoma cell line Anip 973.</p><p><b>METHODS</b>The survival rate and the inhibitory rate of Anip 973 cell in vitro were detected by MTT colorimetric assay and cell growth curve assay at different time points under different concentration of emodin; the cell proliferation cycle and the apoptotic rate were examined with flow cytometry analysis, and Caspase-3 protein expression was measured by immunoblotting assay.</p><p><b>RESULTS</b>Emodin inhibited the proliferation of Anip 973 cell at G0/G1 phase, decreased the cell ratio at S phase and activated the Caspase-3 protein. It suppressed the growth of tumor cells and raised the apoptotic rate in a concentration and time depending manner in a certain extent.</p><p><b>CONCLUSION</b>Emodin could suppress the proliferation of Anip 973 cell, and its mechanism of anticancer effect may be through activating Caspase-3, to induce apoptosis and block cell cycle.</p>

Identification of Interleukin-13 gene polymorphism A2044G in the patients with asthma in the north of China by molecular beacon-based capillary electrophoresis(MB-CE) analysis / 中华检验医学杂志

Objective To develop a new method, capillary electrophoresis(CE) based on molecular beacon(MB),for rapid detection of polymerase chain reaction(PCR).To explor the roles of the IL-13 gene exon4 A2044G single nucleiotide polymorphism(SNP) in the pathogenesis of bronchial asthma.Methods The IL-13 exon 4 was amplified by PCR with genomic DNA used as templates from 20 healthy persons and 32 patients with dominantly allergic familial history living in the north of china.Then separating the amplification with capillary electrophoresis followed by hybridization of molecular beacons into the PCR product which were sequenced in the end. Results Detected with CE-MB method,there was significant difference in the distribution of A/G in IL-13exon 2044,A allele frequency was higher in asthma compared with normal controls,same as sequencing. Conclusion The method of capillary electrophoresis based on molecular beacon(MB-CE) is able to be developed as a clinical detecting method for genetic variation diseases.IL-13 A2044G SNP is important in the asthmatic mechanism.