Xin Li1,2, Yuanyuan Fu1, Yue Gao1, Shipeng Shang1, Shuang Guo1, Hanxiao Zhou1, Shuqiang Qu3, Shangwei Ning1. 1. College of Bioinformatics Science & Technology, Harbin Medical University, Harbin, 150081, China. 2. Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, China. 3. Department of Pediatrics, Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China.
Abstract
Aim: To determine whether the promoters of long noncoding RNAs (lncRNAs) undergo dynamic changes in DNA methylation during fetal development. Methods: ANOVA and the tissue specificity index were used to identify and validate tissue-specific methylation sites. Age-associated DNA methylation signatures were identified by applying the elastic net method. Results: The lncRNA methylome landscape was characterized in four types of fetal tissue and at three gestational time points, and specific characteristics relative to the tissue of origin and developmental age were identified. Higher levels of lncRNA methylation might be involved in tissue differentiation. LncRNAs harboring age-associated methylation signatures may participate in the fetal developmental process. Conclusion: This study provides novel insights into the role of lncRNA methylomes in fetal tissue specification and development.
Aim: To determine whether the promoters of long noncoding RNAs (lncRNAs) undergo dynamic changes in DNA methylation during fetal development. Methods: ANOVA and the tissue specificity index were used to identify and validate tissue-specific methylation sites. Age-associated DNA methylation signatures were identified by applying the elastic net method. Results: The lncRNA methylome landscape was characterized in four types of fetal tissue and at three gestational time points, and specific characteristics relative to the tissue of origin and developmental age were identified. Higher levels of lncRNA methylation might be involved in tissue differentiation. LncRNAs harboring age-associated methylation signatures may participate in the fetal developmental process. Conclusion: This study provides novel insights into the role of lncRNA methylomes in fetal tissue specification and development.
Entities:
Keywords:
DNA methylation; dynamic; fetal development; lncRNA; specific