Genome-wide strategies identify downstream target genes of chick connective tissue-associated transcription factors.
نویسندگان
چکیده
Connective tissues support organs and play crucial roles in development, homeostasis and fibrosis, yet our understanding of their formation is still limited. To gain insight into the molecular mechanisms of connective tissue specification, we selected five zinc-finger transcription factors - OSR1, OSR2, EGR1, KLF2 and KLF4 - based on their expression patterns and/or known involvement in connective tissue subtype differentiation. RNA-seq and ChIP-seq profiling of chick limb micromass cultures revealed a set of common genes regulated by all five transcription factors, which we describe as a connective tissue core expression set. This common core was enriched with genes associated with axon guidance and myofibroblast signature, including fibrosis-related genes. In addition, each transcription factor regulated a specific set of signalling molecules and extracellular matrix components. This suggests a concept whereby local molecular niches can be created by the expression of specific transcription factors impinging on the specification of local microenvironments. The regulatory network established here identifies common and distinct molecular signatures of limb connective tissue subtypes, provides novel insight into the signalling pathways governing connective tissue specification, and serves as a resource for connective tissue development.
منابع مشابه
Genome-wide Association Study to Identify Genes and Biological Pathways Associated with Type Traits in Cattle using Pathway Analysis
Extended Abstract Introduction and Objective: Type traits describing the skeletal characteristics of an animal are moderately to strongly genetically correlate with other economically important traits in cattle including fertility, longevity and carcass traits. The present study aimed to conduct a genome wide association studies (GWAS) based on gene-set enrichment analysis for identifying the ...
متن کاملGenome-wide strategies identify molecular niches regulated by connective tissue-associated transcription factors
متن کامل
I-10: Transcriptomics in Oocyte Mediated Cellular Reprogramming
a:4:{s:10:"Background";s:1707:"Early embryonic development in mammals begins in transcriptional silence with an oocyte-mediated transcriptional reprogramming of parental gametes occurs during a so called across-the-board process of “erase-and-rebuild”. In this process, the parental transcription programs are erased long before (maternal) or soon thereafter (paternal) fertilization to generate a...
متن کاملGene regulation network fitting of genes involved in the pathophysiology of fatty liver in the mice by promoter mining
Background and Aim: Non-Alcoholic Fatty Liver Disease (NAFLD) is the major cause of chronic liver disease in developed countries. In this study, we identified the most important transcription factors and biological mechanisms affecting the incidence of fatty liver disease using the promoter region data mining. Materials and Methods In this study, at first, the marker genes associated with this...
متن کاملIn Silico Genome-Wide Screening for TnrA-Regulated Genes of Bacillus clausii
Bacillus clausii TnrA transcription factor is required for global nitrogen regulation. In order to obtain anoverview of gene regulation by TnrA in B. clausii KSMK16, the entire genome of B. clausii was screened forthe consensus sequence, 5’-TGTNAN7TNACA-3’ known as the TnrA box, and 13 transcription units werefound containing a putative TnrA box. The TnrA targets identified in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Development
دوره 145 7 شماره
صفحات -
تاریخ انتشار 2018