Anti-Myod1 polyclonal antibody

Cenome-wide association study identified two functional SNPs associated with gastric cancer especially the diffuse type. The first was a polymorphism (rs2294008) in prostate stern cell antigen (PSCA), and the other was a polymorphism (rs4072037) in mucin 1 (MUC1). DNA methylation is associated with gastric cancer and Helicobacter pylori (H. pylori)-induced gastritis, while hypermethylation of promoter CpG island (CGI) is a common characteristic of enlarged-fold gastritis induced by H. pylori, a risk factor of diffuse-type gastric cancer. We evaluated the association between PSCA and MUCI polymorphisms with H. pylori--related promoter CGI methylation in the non-neoplastic gastric mucosa. PSCA rs2294008 C/T and MUCI rs4072037 A/G polymorphisms were genotyped in 410 cancer-free subjects in relation to promoter CGI methylation status of three candidate genes, of which the methylation status is associated with H. pylori infection (IGF2, MYOD1, and SLC16A12). Methylation levels of all three genes were significantly higher in subjects with PSCA rs2294008 T/T compared with the PSCA rs2294008 C/C (all P < 0.05). Such associations were more enhanced in H. pylori-positive subjects (all P < 0.01). The multivariate analysis demonstrated that PSCA C/T [OR, 2.37; 95% CI (confidence interval), 1.06-5.29; P = 0.035] and T/T genotypes (OR, 3.2; 95% CI, 1.41-7.25; P = 0.005) were significantly associated with methylation-high gastric mucosa as independent factors. MUCI rs4072037 A/G polymorphism was not associated with methylation status of all three genes. PSCA C/T and T/T genotypes are associated with H. pylori-related promoter DNA methylation in the gastric mucosa. Impact Our observations provided the evidence that PSCA polymorphism influence the susceptibility to gastric cancer through DNA methylation induction.

Background Congenital scoliosis (CS) is a spinal deformity due to vertebral malformations. Although insufficiency ofTBX6dosage contributes to a substantial proportion of CS, the molecular etiology for the majority of CS remains largely unknown.TBX6-mediated genes involved in the process of somitogenesis represent promising candidates. Methods Individuals affected with CS and without a positive genetic finding were referred to this study. Proband-only exome sequencing (ES) were performed on the recruited individuals, followed by analysis ofTBX6-mediated candidate genes, namelyMEOX1,MEOX2,MESP2,MYOD1,MYF5,RIPPLY1, andRIPPLY2. Results A total of 584 patients with CS of unknown molecular etiology were recruited. After ES analysis, protein-truncating variants inRIPPLY1andMYF5were identified from two individuals, respectively. In addition, we identified five deleterious missense variants (MYOD1,n = 4;RIPPLY2,n = 1) inTBX6-mediated genes. We observed a significant mutational burden ofMYOD1in CS (p = 0.032) compared with the in-house controls (n = 1854). Moreover, a potential oligogenic disease-causing mode was proposed based on the observed mutational co-existence ofMYOD1/MEOX1andMYOD1/RIPPLY1. Conclusion Our study characterized the mutational spectrum ofTBX6-mediated genes, prioritized core candidate genes/variants, and provided insight into a potential oligogenic disease-causing mode in CS.