Project description:Transforming the endometrial luminal epithelium (LE) into a receptive state is a requisite event for successful embryo implantation. This study suggests the role of a transcription factor in regulating endometrial LE receptivity.
Project description:Although the well-known importance of pig in agriculture, as well as a model for human biology, the miRNA catalog of pig has been largely undefined. Identification and preliminary characterization of adipose- and muscle-specific miRNAs would be a prerequisite for a thorough understanding of their roles in regulating adipose deposition and muscle growth. In the present study, we get insight into the miRNA transcriptome in eight adipose tissues, two skeletal muscles and cardiac muscle of pig using deep sequencing technology, and to elucidate their characteristic tissue-specific profiles and genomic context. Eleven small RNA libraries from eight adipose tissues, two skeletal muscle tissues and cardiac muscle of pig were sequenced.
Project description:To investigate loss-of-function of the C/EBP family members, we used A-CEBP which exerts a dominant-negative effect against all CEBPs. DOX-inducible overexpression of A-CEBP into mouse chondrocyte cell line ATDC5 increased expressions of early differentiation markers, decreased those of late differentiation markers. In addition, A-CEBP altered many genes related with skeletal development, cartilage, cell cycle, inflammation and apoptosis. We established stable ATDC5 cells which express GFP or A-CEBP by DOX induction. We started differentiation of these cells by ITS supplement immediately after DOX induction, harvested mRNA after 3 weeks, and performed microarray analysis.
Project description:Although the well-known importance of pig in agriculture, as well as a model for human biology, the miRNA catalog of pig has been largely undefined. Identification and preliminary characterization of adipose- and muscle-specific miRNAs would be a prerequisite for a thorough understanding of their roles in regulating adipose deposition and muscle growth. In the present study, we get insight into the miRNA transcriptome in eight adipose tissues, two skeletal muscles and cardiac muscle of pig using deep sequencing technology, and to elucidate their characteristic tissue-specific profiles and genomic context.
Project description:Purpose: The goal of this study is to identify genes selectively associated with C. elegans CEBP-1. Methods: We generated transgenic animals expressing FLAG-tagged CEBP-1 in a cebp-1(tm2807) mutant background (cebp-1(0); juIs418 [Pcebp-1::FLAG::CEBP-1::cebp-1 3’UTR]) and then immunoprecipitated FLAG-CEBP-1-associated DNA fragments using anti-FLAG antibodies (M2 anti-FLAG magnetic beads; Sigma). We collected mixed stage worms grown at 20˚C on NGM plates followed by 2% formaldehyde and sonicated the samples as described (Mukhopadhyay et al., 2008). We next generated ChIP-seq DNA libraries. Briefly, both ChIPed DNA and input genomic DNA were ligated to specific adaptors and amplified by barcode primers followed by sequencing on the Illumina HiSeq-2000 platform. We performed two independent ChIP-seq experiments, with parallel genomic DNA controls prepared from the same strain. We conducted peak-calling using CLC genomics workbench 6.0 (CLCbio). To define genes associated with the peaks, we used the annotation of transcription start site (TSS) and transcription end site (TES) from WS220 and annotated the peak if it overlapped the gene or the 3 kb upstream of the TSS. We then manually confirmed the peaks and associated genes using UCSC browser and update to WS252. Results: We found 209 CEBP-1 ChIP-seq peaks in the genome that were associated with 212 coding genes. Through motif discovery tools, we also found that CEBP-1 binds conserved DNA motifs. Conclusions: The conservation of C.elegans CEBP-1 binding motif supports functional parallels between C. elegans CEBP-1 and vertebrate C/EBPs.
Project description:To investigate loss-of-function of the C/EBP family members, we used A-CEBP which exerts a dominant-negative effect against all CEBPs. DOX-inducible overexpression of A-CEBP into mouse chondrocyte cell line ATDC5 increased expressions of early differentiation markers, decreased those of late differentiation markers. In addition, A-CEBP altered many genes related with skeletal development, cartilage, cell cycle, inflammation and apoptosis.
Project description:Obese and lean-type pig breeds show obvious differences in adipose deposition and muscle growth; however, the molecular mechanisms underlying this phenotypic variation remains unclear. Landrace (a leaner, Western breed), Rongchang (a fatty, Chinese breed) and Tibetan (a feral, indigenous Chinese breed that has not undergone artificial selection) pig breeds were used in this study. We collected eight diverse adipose tissues and two phenotypically distinct skeletal muscle tissues from three well-defined pig models with distinct fat rates, and studied mRNA expression differences among breeds, males and females, and tissues. These results highlight some possible candidate genes for porcine adipose deposition and muscle growth and provide some data on which to base further studies of the molecular basis of energy metabolism. The mRNA expression differences of eight diverse adipose tissues and two phenotypically distinct skeletal muscle tissues from three well-defined pig models with distinct fat rates are measured.