Yi-Dong Chen1, Nasha Zhang2, Xiao-Guang Qiu3, Jupeng Yuan2, Ming Yang2. 1. Department of Radiation Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China. 2. Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong Province, China. 3. Department of Radiation Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Abstract
BACKGROUND: How germline single nucleotide polymorphisms are involved in the etiology of medulloblastoma remans poorly understood. We hypothesized that CCDKN2A/B rs1063192 and rs4977756 and also the long noncoding RNA (lncRNA) CDKN2BAS rs2157719 glioma susceptibility polymorphisms identified by genome-wide association studies may contribute to medulloblastoma predisposition. METHODS: To test this hypothesis, we genotyped these genetic variants among 160 medulloblastoma patients and 443 health controls in a Chinese population. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated by logistic regression. RESULTS: We found that only the lncRNA CDKN2BAS rs2157719 T>C genetic polymorphism was significantly associated with an increased medulloblastoma risk (C allele: OR = 1.85, 95% CI = 1.32-2.58; p = 2.7 × 10-4 ). The stratified analyses showed an elevated risk of pediatric medulloblastoma associated with CDKN2BAS rs2157719 CC or TC genotype (both p < 0.05). Moreover, the association between the CDKN2BAS rs2157719 polymorphism and medulloblastoma risk is more pronounced in males (OR = 2.22, 95% CI = 1.36-3.62; p = 0.001). CONCLUSIONS: The findings of the present study provide important insights into the genetic complexities and predisposition of medulloblastoma in Chinese, especially at the lncRNA germline variation level.
BACKGROUND: How germline single nucleotide polymorphisms are involved in the etiology of medulloblastoma remans poorly understood. We hypothesized that CCDKN2A/B rs1063192 and rs4977756 and also the long noncoding RNA (lncRNA) CDKN2BASrs2157719glioma susceptibility polymorphisms identified by genome-wide association studies may contribute to medulloblastoma predisposition. METHODS: To test this hypothesis, we genotyped these genetic variants among 160 medulloblastomapatients and 443 health controls in a Chinese population. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated by logistic regression. RESULTS: We found that only the lncRNA CDKN2BASrs2157719 T>C genetic polymorphism was significantly associated with an increased medulloblastoma risk (C allele: OR = 1.85, 95% CI = 1.32-2.58; p = 2.7 × 10-4 ). The stratified analyses showed an elevated risk of pediatric medulloblastoma associated with CDKN2BASrs2157719 CC or TC genotype (both p < 0.05). Moreover, the association between the CDKN2BASrs2157719 polymorphism and medulloblastoma risk is more pronounced in males (OR = 2.22, 95% CI = 1.36-3.62; p = 0.001). CONCLUSIONS: The findings of the present study provide important insights into the genetic complexities and predisposition of medulloblastoma in Chinese, especially at the lncRNA germline variation level.
Authors: Quinn T Ostrom; Maral Adel Fahmideh; David J Cote; Ivo S Muskens; Jeremy M Schraw; Michael E Scheurer; Melissa L Bondy Journal: Neuro Oncol Date: 2019-11-04 Impact factor: 12.300
Authors: Musa Alharbi; Nahla Mobark; Yara Bashawri; Leen Abu Safieh; Albandary Alowayn; Rasha Aljelaify; Mariam AlSaeed; Amal Almutairi; Fatimah Alqubaishi; Ebtehal AlSolme; Maqsood Ahmad; Ayman Al-Banyan; Fahad E Alotabi; Jonathan Serrano; Matija Snuderl; May Al-Rashed; Malak Abedalthagafi Journal: Front Neurol Date: 2020-03-20 Impact factor: 4.003