RESUMO
Liangshan Yi Autonomous Prefecture locates at the south of Sichuan, China, and this area has the largest population of Yi ethnic nationally. In order to study the population data of Y-STRs of this area and contribute to the worldwide Y-STR database, we genotyped 628 unrelated individuals using commercially available Goldeneye® DNA ID 27Y system. Gene diversity (GD) values and haplotype diversity (HD) were calculated. Population comparison results showed that Liangshan Yi population was significantly differently from other populations.
Assuntos
Povo Asiático/etnologia , Cromossomos Humanos Y , Etnicidade/genética , Genética Populacional , Genótipo , Haplótipos , Repetições de Microssatélites , China/etnologia , HumanosRESUMO
Recently introduced microhaplotype has attracted more attention in forensic field. A microhaplotype is a short segment of DNA (e.g<200bp) contains two or more SNPs. The microhaplotypes showed extremely low mutation rates. The amplicons of alleles are balance to each other and without any stutters. By these advantages, it shows great value for forensic application, such as mixture stains analyzing, ancestor analysis, and kinship analysis. Thus, we aimed to review the development, analytical approach, nomenclature and population characteristic of microhaplotype.
RESUMO
AIM:To investigate the expression of up-regulated gene 11 ( URG11 ) in prostate cancer cell line and the effect of URG11 siNRA on the proliferation and invasion of human prostate cancer LNCaP cells.METHODS:The mRNA and protein levels of URG11 in prostate cancer cell lines and normal prostate epithelial cell line were evaluated by real-time PCR and Western blot.LNCaP cells were transfected with designed siRNA using the liposome method.The prolif-eration, apoptosis, migration and invasion abilities of the LNCaP cells were evaluated by MTS assay, flow cytometry, wound-healing assay and Transwell assay.RESULTS:The expression of URG11 at mRNA and protein levels in the DU145, PC3, LNCaP cell lines was significantly higher than that in RWPE-1 cell line.Compared with the control group, the proliferation of LNCaP cells with URG11 siRNA was stagnant in G1/S phase and induced apoptosis.The proliferation of LNCaP cells at 0 h, 24 h, 48 h and 72 h was inhibited after URG11 expression was down-regulated (P<0.05).Transwell assay showed that migration (P<0.05) and invasion (P<0.05) were also inhibited.CONCLUSION:URG11 is highly expressed in prostate cancer.Silencing of URG11 significantly inhibits the proliferation and invasion and induces apoptosis of LNCaP cells.
RESUMO
In order to detect the relationships of human laryngeal squamous cell carcinoma (LSCC) with the expression of Vascular Endothelial Growth Factor C (VEGF-C) and Vascular Endothelial Growth Factor Receptor-3 (VEGFR-3), we examined the level of VEGF-C and VEGFR-3 gene expression in the samples from 30 cases of normal laryngeal mucosa tissue (NLM), primary laryngeal carcinoma (PLC) and cervical lymph node (CLN) by using reverse transcription polymerase chain reaction (RT-PCR). The protein levels of VEGF-C and VEGFR-3 expression were also determined by Western blotting in 10 cases of NLM, PLC, CLN,respectively. We found that in the samples from the same patient, the VEGF-C and VEGFR-3 expression level is different among normal laryngeal mucosa tissue, primary laryngeal carcinoma and cervical lymph node. In primary laryngeal carcinoma, the level of VEGF-C and VEGFR-3 expression was significantly higher in lymph node positive group than in lymph node negative group, and this difference was the associated with the histological grade of differentiation (P < 0.05). The expression levels of VEGF-C and VEGFR-3 were not associated with age, sex, site and T stage (P > 0.5). These results suggest that there is a close relationship of LSCC with VEGF-C/VEGFR-3; and VEGF-C/VEGFR-3 may have the potential for use as an indicator with prognostic significance in dealing with LSCC.
