Elucidating Genotype-Phenotype Relationship of Polygenic Dilated Cardiomyopathies: Administrative Supplement (INCLUDE)

阐明多基因扩张型心肌病的基因型-表型关系：行政补充（包括）

• 批准号: 10404723
• 负责人: THOMAS QUERTERMOUS
• 金额: $ 50.13万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-17 至 2024-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10404723
• 关键词: Administrative Supplement; Affect; Award; Bioinformatics; Biological Assay; Biometry; CRISPR/Cas technology; Cardiac; Cardiac Myocytes; Cardiac development; Cardiovascular system; Cause of Death; Cell Differentiation process; Cell Line; Cells; Chromosome abnormality; Clinical Data; Collaborations; Complex; Complication; DNA Sequence Alteration; Data; Data Analyses; Data Set; Development; Dilated Cardiomyopathy; Disease; Down Syndrome; Ethics; Experimental Models; Frequencies; Gene Expression Regulation; Gene Mutation; Genes; Genetic; Genomics; Genotype; Grant; Heart Diseases; Human; Individual; Inherited; Institutes; Intervention; Knock-in; Live Birth; Mutation; National Heart, Lung, and Blood Institute; Parents; Pathogenesis; Pathogenicity; Pathologic; Pathology; Patients; Phenotype; Qi; Reporting; Research Personnel; Risk; Sampling; Sarcomeres; Signal Transduction; Single Nucleotide Polymorphism; Somatic Cell; Structure; Technology; Trans-Omics for Precision Medicine; base; biobank; cardiogenesis; cell type; clinical phenotype; congenital heart disorder; disease phenotype; experience; gene correction; gene interaction; genetic variant; genome sequencing; human disease; improved; induced pluripotent stem cell; molecular sequence database; multidisciplinary; multiple omics; novel; recruit; response; screening; single-cell RNA sequencing; stem cell biology; trait; whole genome

PROJECT SUMMARY Down syndrome (DS) is the most common chromosomal abnormality affecting one in every 700 live births. Up to 50% of individuals born with DS, also known as trisomy 21 (T21), are born with a congenital heart disease (CHD). Despite the high frequency of DS-CHD, the exact mechanisms of DS-related CHD remain unknown. In this Supplement to the Parent R01 HL130020-5, we propose to leverage our established iPSC-based experimental models to understand the genetic basis of DS-CHD. We hypothesize that an interaction of genes between T21 and non-T21 mutations causes CHD in DS. Patients. In Aim 1, we will perform whole genome- sequencing (WGS) in DS patients with or without CHD to identify single nucleotide variants (SNV) associated with DS-CHD. In Aim 2, we will validate the pathogenicity of SNVs on development of CHDs in the presence of T21. We will use CRISPR/Cas9 to correct or insert the SNVs to iPSCs from control and DS patients to establish a genotype-phenotype relationship between SNVs and CHDs. Completing the aims of this supplement will likely increase our understanding of DS-related CHD as well as broaden the overall impact of the parent R01 award. In summary, this INCLUDE Administrative Supplement proposal will create novel opportunities to build a massive functional and sequencing database as well as iPSC biorepository that will be broadly shared with multi- disciplinary investigators. The combination of deep clinical phenotyping, the use of iPSC, CRISPR/Cas9 and multi-omic approaches will undoubtedly help to move this field forward and better understand DS-related cardiac pathologies.

项目摘要 唐氏综合症（DS）是最常见的染色体异常，每700个活产。向上 有50％的患有DS的人，也称为三体疾病（T21），出生于先天性心脏病 （CHD）。尽管DS-CHD频率很高，但与DS相关的CHD的确切机制仍然未知。在 对父母R01 HL130020-5的补充，我们建议利用我们已建立的基于IPSC的 了解DS-CHD的遗传基础的实验模型。我们假设基因的相互作用 在T21和非T21突变之间导致DS中的CHD。患者。在AIM 1中，我们将执行整个基因组 - 有或没有CHD的DS患者的测序（WGS），以识别相关的单核苷酸变体（SNV） 与DS-CHD。在AIM 2中，我们将在存在下验证SNV在CHD开发中的致病性 T21。我们将使用CRISPR/CAS9从对照和DS患者中纠正或将SNV纠正或插入IPSCS SNV和CHD之间的基因型 - 表型关系。完成该补充的目标可能会 提高我们对DS相关冠心的理解，并扩大父母R01奖的整体影响。 总而言之，这包括行政补充提案将创造新的机会来建立大规模的 功能和测序数据库以及IPSC Biorepository，将与多种多样共享 纪律调查员。深层临床表型，IPSC，CRISPR/CAS9和 多摩变方法无疑将有助于向前推进这一领域，并更好地了解与DS相关的心脏 病理。