[an error occurred while processing this directive]

Hereditas(Beijing) ›› 2021, Vol. 43 ›› Issue (1): 74-83.doi: 10.16288/j.yczz.20-283

• Research Article • Previous Articles     Next Articles

Analysis of transcription factors in accessible open chromatin in the 18-trisomy syndrome based on single cell ATAC sequencing technique

Xiaofen Qiu1,2,3, Dong’e Tang3, Haiyan Yu3, Qiuyan Liao3, Zhiyang Hu3, Jun Zhou3, Xin Zhao3, Huiyan He3, Zhuojian Liang3, Chengming Xu2, Ming Yang1,2(), Yong Dai3()   

  1. 1. College of Life Science, Guangxi Normal University, Guilin 541006, China
    2. Guangxi Key Laboratory of Metabolic Diseases Research, Department of Clinical Laboratory of Guilin No.924 Hospital, Guilin 541002, China
    3. Clinical Medical Research Center, Guangdong Provincial Engineering Research Center of Autoimmune Disease Precision Medicine, Shenzhen Engineering Research Center of Autoimmune Disease, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People’s Hospital, Shenzhen 518020, China;
  • Received:2020-11-08 Revised:2020-12-24 Online:2021-01-20 Published:2021-01-04
  • Contact: Yang Ming,Dai Yong E-mail:yangming181@yeah.net;daiyong22@aliyun.com
  • Supported by:
    Supported by Science and Technology Planning Project of Guangdong Province, China(2017B020209001);the Science and Technology Plan of Shenzhen No(GJHZ20180413181714541);Guangxi Key Laboratory of Metabolic Diseases Research No(20-065-76);the Scientific Research and Technology Development Planning Project of Guilin No(2016012702-1)

Abstract:

Trisomy 18 syndrome is one of the most common autosomal aneuploidy disorders. Little is known about the genetic regulation leading to the clinical phenotypes associated with the occurrence and development of trisomy 18 syndrome disorders (e.g., mental retardation, cardiac and renal abnormalities). To explore the regulatory factors that influence the phenotypes of the disease, this study used single-cell ATAC sequencing to analyze transcription factors in the accessibility chromatin regions of the single-nucleus cells of the cord blood from 18-trisomy syndrome and control subjects. A single-cell library constructed by capturing 11,611 cells identified seven major immune cell populations, and the results of cell number statistics suggested the presence of abnormalities in the immune system of 18-trisomy syndrome patients. Fourteen transcription factors (P<0.05, |FC|>1.2) were identified by analyzed accessibility chromatin regions. The relative expression levels of four of these transcription factors (TEAD1, TEAD2, TEAD4, Twist2) were confirmed using real-time quantitative fluorescence PCR. In conjunction with information from the literature, this study suggests that these four transcription factors may be associated with abnormalities in cardiac and skeletal development in patients with the 18-trisomy syndrome, thereby providing candidate molecules for mechanistic studies on the occurrence and development of the 18-trisomy syndrome phenotypes.

Key words: trisomy 18, single nucleated cells, single-cell ATAC sequencing, transcriptional regulation, transcription factors