Yang Mary Qu, Yoshigoe Kenji, Yang William, Tong Weida, Qin Xiang, Dunker A, Chen Zhongxue, Arbania Hamid R, Liu Jun S, Niemierko Andrzej, Yang Jack Y
BMC Genomics. 2014;15 Suppl 11(Suppl 11):I1. doi: 10.1186/1471-2164-15-S11-I1. Epub 2014 Dec 16.
Synergistically integrating multi-layer genomic data at systems level not only can lead to deeper insights into the molecular mechanisms related to disease initiation and progression, but also can guide pathway-based biomarker and drug target identification. With the advent of high-throughput next-generation sequencing technologies, sequencing both DNA and RNA has generated multi-layer genomic data that can provide DNA polymorphism, non-coding RNA, messenger RNA, gene expression, isoform and alternative splicing information. Systems biology on the other hand studies complex biological systems, particularly systematic study of complex molecular interactions within specific cells or organisms. Genomics and molecular systems biology can be merged into the study of genomic profiles and implicated biological functions at cellular or organism level. The prospectively emerging field can be referred to as systems genomics or genomic systems biology. The Mid-South Bioinformatics Centre (MBC) and Joint Bioinformatics Ph.D. Program of University of Arkansas at Little Rock and University of Arkansas for Medical Sciences are particularly interested in promoting education and research advancement in this prospectively emerging field. Based on past investigations and research outcomes, MBC is further utilizing differential gene and isoform/exon expression from RNA-seq and co-regulation from the ChiP-seq specific for different phenotypes in combination with protein-protein interactions, and protein-DNA interactions to construct high-level gene networks for an integrative genome-phoneme investigation at systems biology level.
在系统层面协同整合多层基因组数据,不仅能够更深入地洞察与疾病发生和发展相关的分子机制,还能够指导基于通路的生物标志物和药物靶点识别。随着高通量新一代测序技术的出现,对DNA和RNA进行测序产生了多层基因组数据,这些数据能够提供DNA多态性、非编码RNA、信使RNA、基因表达、异构体和可变剪接信息。另一方面,系统生物学研究复杂的生物系统,特别是对特定细胞或生物体内部复杂分子相互作用的系统研究。基因组学和分子系统生物学可以融合到细胞或生物体水平上对基因组图谱和相关生物学功能的研究中。这个即将出现的领域可以称为系统基因组学或基因组系统生物学。中南部生物信息学中心(MBC)以及阿肯色大学小石城分校和阿肯色大学医学科学分校联合开设的生物信息学博士项目,对推动这个即将出现的领域的教育和研究进展尤为感兴趣。基于过去的调查和研究成果,MBC正在进一步利用RNA测序中的差异基因和异构体/外显子表达,以及针对不同表型的ChIP测序中的共调控,结合蛋白质-蛋白质相互作用和蛋白质-DNA相互作用,构建高级基因网络,以便在系统生物学水平上进行综合的基因组-音素研究。