Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA170389 | ENA |
REPOSITORIES: ENA
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Project description:Transforming growth factor-b (TGF-b) regulates various aspects of vascular development, yet the signaling mechanisms of TGF-b in the control of angiogenesis remain poorly characterized. Here we show that homeodomain interacting protein kinases, HIPK1 and HIPK2, are transcriptional corepressors that regulate TGF-b-depednent angiogenesis during embryonic development. Loss of HIPK1 and HIPK2 leads to marked up-regulations of several potent angiogenic genes, including Vegf and Mmp10, which result in excessive endothelial proliferation and poor adherens junction formation. This robust phenotype can be recapitulated by siRNA knock down of Hipk1 and Hipk2 in human umbilical vein endothelial cells, as well as in endothelial cell-specific TGF-b type II receptor (TbRII) conditional mutants. The effects of HIPK proteins are mediated through its interaction with MEF2C and HDAC7, and this interaction can be further enhanced by TGF-b and TAK1. Remarkably, TGF-b-TAK1 signaling activates HIPK2 by phosphorylating a highly conserved tyrosine residue Y-361 within the kinase domain. Point mutation in this tyrosine completely eliminates the effect of HIPK2 in the transcriptional suppression of target genes. Together, these results reveal a previously unrecognized role of HIPK proteins in connecting TGF-b signaling pathway with the transcriptional programs for angiogenesis in early embryonic development. In this study, a total of 36,000 transcripts and ESTs (a total of 30,000 unique genes) was used to acquire expression profiles among the control, Hipk1-/-, Hipk2-/-, and Hipk1-/-;Hipk2-/- E9.5 embryos. This will allow us unsupervised and successfully to analyze the transcriptomes and finally to reveal the role of HIPK1 and HIPK2 in the signal transduction mechanism downstream of TGF-b and the transcriptional control of angiogenic gene expression during the critical stages of vascular morphogenesis.
2013-06-01 | E-GEOD-39253 | biostudies-arrayexpress
Project description:Transforming growth factor-b (TGF-b) regulates various aspects of vascular development, yet the signaling mechanisms of TGF-b in the control of angiogenesis remain poorly characterized. Here we show that homeodomain interacting protein kinases, HIPK1 and HIPK2, are transcriptional corepressors that regulate TGF-b-depednent angiogenesis during embryonic development. Loss of HIPK1 and HIPK2 leads to marked up-regulations of several potent angiogenic genes, including Vegf and Mmp10, which result in excessive endothelial proliferation and poor adherens junction formation. This robust phenotype can be recapitulated by siRNA knock down of Hipk1 and Hipk2 in human umbilical vein endothelial cells, as well as in endothelial cell-specific TGF-b type II receptor (TbRII) conditional mutants. The effects of HIPK proteins are mediated through its interaction with MEF2C and HDAC7, and this interaction can be further enhanced by TGF-b and TAK1. Remarkably, TGF-b-TAK1 signaling activates HIPK2 by phosphorylating a highly conserved tyrosine residue Y-361 within the kinase domain. Point mutation in this tyrosine completely eliminates the effect of HIPK2 in the transcriptional suppression of target genes. Together, these results reveal a previously unrecognized role of HIPK proteins in connecting TGF-b signaling pathway with the transcriptional programs for angiogenesis in early embryonic development.
2013-06-01 | GSE39253 | GEO
Project description:TGF-beta signaling in neural crest cells is required for normal craniofacial development. This signaling can be transduced via TGF-beta type I receptors (TGFbRI) using Smad-dependent or Smad independent signaling pathways. We used microarrays to identify TGF-beta-responsive genes that are dependent either on TGFbRI kinase, Tak1 kinase or both. Primary palatal mesenchymal cell cultures were established. Cultured cells were stimulated with TGF-beta2 in the presence or absence of TGFbRI kinase and Tak1 kinase inhibitors. Unstimulated cells were used as controls. Total RNAs were isolated and hybridized on Affymetrix microarrays.
2013-03-27 | E-GEOD-45491 | biostudies-arrayexpress
Project description:HIPK2, a member of the homeodomain-interacting protein kinase family, is a transcriptional corepressor whose activity inhibits tumor progression and allows tumor cell apoptosis in response to chemotherapy. HIPK2 regulates the function of numerous molecules and its inhibition by siRNA, hypoxia or mutations, strongly favours molecular pathways involved in tumor progression, angiogenesis, invasion and chemoresistance. Hence the identification of novel molecules regulated by HIPK2 may be beneficial for better understanding tumor progression and for evaluating targeted antitumor therapies. By using microarray analysis, derived from HIPK2 overexpression (that mimics HIPK2 activation) in colon cancer RKO cells, we aim at evaluating the HIPK2 modulated gene expression involved in tumor progression.
2011-12-31 | E-GEOD-31089 | biostudies-arrayexpress
Project description:HIPK2, a member of the homeodomain-interacting protein kinase family, is a transcriptional corepressor whose activity inhibits tumor progression and allows tumor cell apoptosis in response to chemotherapy. HIPK2 regulates the function of numerous molecules and its inhibition by siRNA, hypoxia or mutations, strongly favours molecular pathways involved in tumor progression, angiogenesis, invasion and chemoresistance. Hence the identification of novel molecules regulated by HIPK2 may be beneficial for better understanding tumor progression and for evaluating targeted antitumor therapies.
2011-12-31 | GSE31089 | GEO
Project description:TGF-beta signaling in neural crest cells is required for normal craniofacial development. This signaling can be transduced via TGF-beta type I receptors (TGFbRI) using Smad-dependent or Smad independent signaling pathways. We used microarrays to identify TGF-beta-responsive genes that are dependent either on TGFbRI kinase, Tak1 kinase or both.
2013-03-27 | GSE45491 | GEO
Project description:The molecular mechanisms by which signaling via transforming growth factor-β (TGF-β) and interleukin 4 (IL-4) control the differentiation of IL-9-producing CD4+ helper T cells (TH9 cells) remain incompletely understood. We found here that the DNA-binding inhibitor Id3 regulated TH9 cell differentiation, as deletion of Id3 increased IL-9 production from CD4+ T cells. Mechanistically, TGF-β1 and IL-4 downregulated Id3 expression, and this process required the kinase TAK1. A reduction in Id3 expression enhanced binding of the transcription factors E2A and GATA-3 to the Il9 promoter region, which promoted Il9 transcription. Notably, Id3’s control of TH9 differentiation regulated anti-tumor immunity in an experimental melanoma-bearing model in vivo and also in human CD4+ T cells in vitro. Thus, our study reveals a previously unrecognized TAK1–Id3–E2A–GATA-3 pathway that regulates TH9 differentiation.
2015-08-14 | GSE72051 | GEO
Project description:To evaluate the effects of TAK1 inhibition on TGF-beta regulated fibrosis using a novel small molecule inhibitor of TAK1.
2023-05-17 | GSE232435 | GEO
Project description:Drosophila melanogaster Tak1, TGF-beta activated kinase 1, is differentially expressed in 11 experiment(s);
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Project description:Drosophila melanogaster Tak1, TGF-beta activated kinase 1, is expressed in 4 baseline experiment(s);
| FBgn0026323 | ExpressionAtlas