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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Expression data from untreated vs. BMP4-treated cultured wild-type and MuSK null muscle cells (myoblasts and myotubes)

ABSTRACT: Bone morphogenic proteins (BMPs) function in virtually all tissues with cell-type specific outcomes. Since there are a relatively small number of BMP receptors this exquisite signaling specificity requires additional molecules to regulate the output of this pathway. We demonstrated that the receptor tyrosine kinase MuSK that is selectively expressed in muscle and plays a critical role in synapse formation and maintenance binds to BMP4 and related BMPs. Since BMPs regulate the transcription of a set of genes, we performed microarrays for wild-type and MuSK null muscle cells to test if MuSK regulates BMP responses in muscle cells. We shought to determine if MuSK regulates BMP responses in muscle cells and if the cell context made any difference in MuSK regulation of BMP pathway. To test this, expression profiles of untreated vs. BMP4-treated undifferentiated myoblast and differentiated myotube cultures were generated for both wild-type and MuSK-null genotypes. All conditions were done in triplicates. In total 24 arrays were analyzed.

ORGANISM(S): Mus musculus

SUBMITTER: Atilgan Yilmaz

PROVIDER: E-GEOD-59567 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from untreated vs. BMP4-treated cultured wild-type and MuSK null muscle cells (myoblasts and myotubes)

Project description:Bone morphogenic proteins (BMPs) function in virtually all tissues with cell-type specific outcomes. Since there are a relatively small number of BMP receptors this exquisite signaling specificity requires additional molecules to regulate the output of this pathway. We demonstrated that the receptor tyrosine kinase MuSK that is selectively expressed in muscle and plays a critical role in synapse formation and maintenance binds to BMP4 and related BMPs. Since BMPs regulate the transcription of a set of genes, we performed microarrays for wild-type and MuSK null muscle cells to test if MuSK regulates BMP responses in muscle cells.

2015-08-03 | GSE59567 | GEO

Regulation of chondrogenesis in early murine limb mesenchyme by BMP signals

Project description:Numerous studies have established a critical role for BMP signaling in skeletal development. In the developing axial skeleton, sequential SHH and BMP signals are required for specification of a chondrogenic fate in somitic tissue. A similar paradigm is thought to operate in the limb, but the signals involved are unclear. To investigate the nature of these signals we examined BMP action in mesenchymal populations derived from the early murine limb bud (~ E10.5). These populations exhibited a graded response to BMPs, in which early limb mesenchymal (EL) cells (from the distal hind limb) displayed an anti-chondrogenic response, whereas BMPs promoted chondrogenesis in older cell populations. To better understand the molecular basis of disparate BMP action in these various populations, gene expression profiling with Affymetrix microarrays was employed to identify BMP-regulated genes. These analyses showed that BMPs induced a distinct gene expression pattern in the EL cultures versus later mesenchymal limb populations (IM and LT). Mouse embryos at gestational age E10.5 were collected and various portions of the limb were micro-dissected. These led to the generation of three populations of cells, early (EL) limb mesenchymal cells from the distal half of the hind limb, an intermediate (IM) population derived from the distal 1/3 of the fore limb, and a later (LT) population from the proximal 2/3 of the fore limb. Mesenchymal cells were isolated and cultured with and without BMP4 treatment. RNA was extracted from cultures at either Day 0,1 or 2, labelled and hybridized to Affymetrix 430 2.0 microarrays. For each time point, RNA was collected from two biological replicates for each treatment condition.

2010-04-12 | E-GEOD-20398 | biostudies-arrayexpress

Global microarray analysis of changes of gene expression in the epidermis of K14-caSmad1 mice

Project description:Bone morphogenetic protein (BMP) signalling plays a key role in the control of skin development and postnatal remodelling by regulating keratinocyte proliferation, differentiation and apoptosis. To study the role of BMPs in wound-induced epidermal repair, we used transgenic mice overexpressing the BMP downstream component Smad1 under the control of a K14 promoter as an in vivo model, as well as ex vivo and in vitro assays. K14-caSmad1 mice exhibited retarded wound healing associated with significant inhibition of proliferation and increased apoptosis in healing wound epithelium. Furthermore, microarray and qRT-PCR analyses revealed decreased expression of a number of cytoskeletal/cell motility-associated genes including wound-associated keratins (Krt16, Krt17) and Myo5a, in the epidermis of K14- caSmad1 mice versus wild-type controls during wound healing. BMP treatment significantly inhibited keratinocyte migration ex vivo, and primary keratinocytes of K14-caSmad1 mice showed retarded migration compared to wild-type controls. Finally, siRNA-mediated silencing of Bmpr-1B in primary mouse keratinocytes accelerated cell migration and was associated with increased expression of Krt16, Krt17 and Myo5a compared to controls. Thus, this study demonstrates that BMPs inhibit keratinocyte proliferation, cytoskeletal organization and migration in regenerating skin epithelium during wound healing, and raises a possibility for using BMP antagonists for the management of chronic wounds. Two-condition experiment, Wild type vs. Smad1 overexpressing mice. Biological replicates: 2 replicates.

2013-11-01 | E-GEOD-50578 | biostudies-arrayexpress

Human breast cancer cell lines: vehicle vs. BMP4 incubation

Project description:Bone morphogenetic proteins (BMPs) are members of the TGF-β superfamily of growth factors. They are known for their roles in regulation of osteogenesis and developmental processes and, in recent years, evidence has accumulated of their crucial functions in tumor biology. BMP4, in particular, has been implicated in breast cancer. However, little is known about BMP target genes in the context of tumor. We therefore explored the effects of BMP4 treatment on global gene transcription in five breast cancer cell lines during a 6-point time series. Data analysis included hierarchical clustering of differentially expressed genes, gene ontology enrichment analyses and model based clustering of temporal data. BMP4 had a strong effect on gene expression. The cellular functions most strongly affected were regulation of transcription and development. The observed transcriptional response, as well as its functional outcome, followed a temporal sequence, with regulation of gene expression and signal transduction leading to changes in metabolism and cell proliferation. Hierarchical clustering revealed distinct differences in the response of individual cell lines to BMP4, but also highlighted a synexpression group of genes. Finally, this study provides a list of potential novel BMP target genes relevant in breast cancer. Two-condition experiment, vehicle-treated vs. BMP4-treated. Five cell lines were tested at six time points each, what makes a total of 30 samples. RNA samples from three biological replicates were pooled before hybridization.

2012-03-22 | E-GEOD-31603 | biostudies-arrayexpress

FGF2 sustains NANOG and switches the outcome of BMP4 induced human embryonic stem cell differentiation

Project description:NANOG has emerged as a central gatekeeper of pluripotency. Here we show that as human embryonic stem (ES) cells exit the pluripotent state, NANOG can play a key role in determining lineage outcome. It has previously been reported that BMPs can induce differentiation of human ES cells into extraembryonic lineages. Here we report that FGF2 switches BMP4 induced differentiation outcome to mesendoderm, characterized by the uniform expression of T (brachyury) and other primitive streak markers. Blocking the MEK-ERK pathway either by chemical inhibitors or by an ERK-specific phosphatase (DUSP6) blocks the FGF2-mediated lineage switch. Active MEK-ERK signaling prolongs NANOG expression during BMP-induced differentiation. Forced NANOG expression results in FGF independent BMP4 induction of mesendoderm, and knockdown of NANOG greatly reduces T induction. Together, our results demonstrate that FGF2 signaling switches the outcome of BMP4 induced differentiation of human ES cells by maintaining NANOG levels through the MEK-ERK pathway. There are three sets of expression data. Set 1 (14 samples) is 5day human ES cells (H1) differentiated with different concentrations of BMP4, in the presence or absence of FGF2. Set 2 (14 samples) is 50ng/mL of BMP4 induced H1 cells differentiation time course, with or without FGF2. Set 3 (22 samples) is 5ng/mL of BMP4 induced H1 cells differentiation time course, with or without FGF2.

2011-03-03 | E-GEOD-25973 | biostudies-arrayexpress

Regulation of chondrogenesis in early murine limb mesenchyme by BMP signals

2010-04-01 | GSE20398 | GEO

Expression profile of early stage druing induced pluripotency regulated by BMP/FBS

Project description:FBS and BMP influence the somatic reprogramming induced by Oct4/Sox2/Klf4/c-Myc similarly. Bone morphogenetic proteins (BMPs) are abundant in serum and activate Smad1/5/8 to regulated target genes. BMPs play a important role in ES self-renewal, neurogenesis, osteogenesis, angiogenesis. We performed this experiment for identify what targets are regulated by BMPs and FBS.

2009-12-23 | GSE19604 | GEO

Gene expression profiling in salivary glands by BMP-2.

Project description:Bone Morphogenetic Protein (BMP), a bone induction factor, belongs to the TGF-β superfamily, and more than 15 types of BMP family molecules have been reported in mammals. They are known to enhance osteoblast differentiation and their osteogenic effects, and also promote differentiation into chondrocytes. While the effects of BMPs on hard tissues are varied and numerous reports have been reported, only a few have reported the effects of BMPs on salivary glands. The aim of this study was to investigate the function of BMP-2 in the formation of salivary glands.

2023-08-18 | GSE240456 | GEO

Gene-expression profiles of BMP signaling-affected SK-OV-3 cells

Project description:Bone morphogenetic proteins (BMPs) are extracellular signaling molecules that belong to the transforming growth factor beta (TGF-β) superfamily. By regulating target gene transcription, BMPs control various cellular processes, such as proliferation, differentiation, apoptosis and migration. In addition, rBMP2 was used to observe BMP signaling in treatment of ovarian cancer cell line SK-OV-3. We attempted to address the possible roles of BMP signaling by inhibiting a wide-range of downstream pathways using a small molecule inhibitor of type I BMPRs, dorsomorphin. The potential utility of this molecule as a molecular inhibitor of BMP signaling in treatment of ovarian cancer cell line SK-OV-3 was also evaluated.

2014-08-07 | GSE60135 | GEO

A Xenopus DNA microarray approach to identify novel direct BMP target genes involved in early embryonic development

Project description:Bone Morphogenetic Proteins (BMPs), a subgroup of the TGF-ï¢ superfamily, were originally isolated from bone on the basis of their ability to induce ectopic bone development. While BMPs are involved in a wide range of developmental and physiological functions, very few vertebrate target genes in this pathway have been identified. To identify target genes regulated by the BMP growth factor family in Xenopus, large-scale microarray analyses were conducted to discover genes directly activated by this factor in dissociated animal cap tissues treated with a combination of the protein synthesis inhibitor cycloheximide and BMP2. Keywords = Xenopus Keywords = BMP Keywords = microarray Keywords = development Keywords = target genes

2010-06-10 | E-GEOD-2274 | biostudies-arrayexpress

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