Abstract:
:Adult mesenchymal stem cells (MSCs) derived from bone marrow contribute to the regeneration of multiple types of mesenchymal tissues. Here we describe the functional role of a novel form of cross-talk between the transforming growth factor beta1 (TGF-beta1) and Wnt signaling pathways in regulating the activities of human MSCs. We show that TGF-beta1 induces rapid nuclear translocation of beta-catenin in MSCs in a Smad3-dependent manner. Functionally, this pathway is required for the stimulation of MSC proliferation and the inhibition of MSC osteogenic differentiation by TGF-beta1, likely through the regulation of specific downstream target genes. These results provide evidence for a new mode of cooperation between the TGF-beta and Wnt signaling pathways in this specific cellular context and suggest a potentially important role for this distinct signaling pathway in the control of self-renewal and differentiation of a specific type of MSCs.
journal_name
Genes Devjournal_title
Genes & developmentauthors
Jian H,Shen X,Liu I,Semenov M,He X,Wang XFdoi
10.1101/gad.1388806subject
Has Abstractpub_date
2006-03-15 00:00:00pages
666-74issue
6eissn
0890-9369issn
1549-5477pii
20/6/666journal_volume
20pub_type
杂志文章abstract::Embryonic stem (ES) cells are pluripotent cells with the ability to self-renew indefinitely. These unique properties are controlled by genetic factors and chromatin structure. The exit from the self-renewing state is accompanied by changes in epigenetic chromatin modifications such as an induction in the silencing-ass...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1588207
更新日期:2007-10-15 00:00:00
abstract::Glucose and glutamine serve as the two primary carbon sources in proliferating cells, and uptake of both nutrients is directed by growth factor signaling. Although either glucose or glutamine can potentially support mitochondrial tricarboxylic acid (TCA) cycle integrity and ATP production, we found that glucose depriv...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1985910
更新日期:2010-12-15 00:00:00
abstract::The ability to maintain and expand the pool of adipocytes in adults is integral to the regulation of energy balance, tissue/stem cell homeostasis, and disease pathogenesis. For decades, our knowledge of adipocyte precursors has relied on cellular models. The identity of native adipocyte precursors has remained unclear...
journal_title:Genes & development
pub_type: 杂志文章,评审
doi:10.1101/gad.293704.116
更新日期:2017-01-15 00:00:00
abstract::The gene for an essential protein subunit of nuclear RNase P from Saccharomyces cerevisiae has been cloned. The gene for this protein, RPP1, was identified by virtue of its homology with a human scleroderma autoimmune antigen, Rpp30, which copurifies with human RNase P. Epitope-tagged Rpp1 can be found in association ...
journal_title:Genes & development
pub_type: 更正并重新发布的文章,杂志文章
doi:10.1101/gad.11.21.2926
更新日期:1997-11-01 00:00:00
abstract::The histone regulatory (HIR) and histone promoter control (HPC) repressor proteins regulate three of the four histone gene loci during the Saccharomyces cerevisiae cell cycle. Here, we demonstrate that Hir1, Hir2, Hir3, and Hpc2 proteins form a stable HIR repressor complex. The HIR complex promotes histone deposition ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1341105
更新日期:2005-11-01 00:00:00
abstract::Treatment with retinoic acid (RA) is known to produce complex teratogenic effects in vertebrates, and its presence in the developing embryo as an endogenous substance has led to the suggestion that RA might be a natural morphogenetic agent. Although our understanding of the molecular mechanism of RA action has improve...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.5.8.1333
更新日期:1991-08-01 00:00:00
abstract::The X-inactive-specific transcript (Xist) locus is a cis-acting switch that regulates X chromosome inactivation in mammals. Over recent years an important goal has been to understand how Xist is regulated at the initiation of X inactivation. Here we report the analysis of a series of targeted mutations at the 5' end o...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.271203
更新日期:2003-09-01 00:00:00
abstract::Chromosome segregation requires stable bipolar attachments of spindle microtubules to kinetochores. The dynein/dynactin motor complex localizes transiently to kinetochores and is implicated in chromosome segregation, but its role remains poorly understood. Here, we use the Caenorhabditis elegans embryo to investigate ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1687508
更新日期:2008-09-01 00:00:00
abstract::Long noncoding RNAs (lncRNAs) can trigger repressive chromatin, but how they recruit silencing factors remains unclear. In Schizosaccharomyces pombe, heterochromatin assembly on transcribed noncoding pericentromeric repeats requires both RNAi and RNAi-independent mechanisms. In Saccharomyces cerevisiae, which lacks a ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.226019.113
更新日期:2013-09-01 00:00:00
abstract::We have studied the effect of exogenous expression of the basal transcription factor TFIID on the activities of several different TATA-containing and TATA-lacking promoters. Overexpression of TFIID from a transfected plasmid in Drosophila Schneider cells resulted in substantial concentration-dependent increases in exp...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.6.2.304
更新日期:1992-02-01 00:00:00
abstract::The liver regenerates upon partial hepatectomy (PH) as terminally differentiated hepatocytes undergo a tremendous proliferative process. CREM gene expression is powerfully induced during liver regeneration. We show that cell proliferation is significantly reduced upon PH in CREM-/- mice. There is a reduction in DNA sy...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.12.23.3639
更新日期:1998-12-01 00:00:00
abstract::Previous characterization of the Saccharomyces cerevisiae Spt4, Spt5, and Spt6 proteins suggested that these proteins act as transcription factors that modify chromatin structure. In this work, we report new genetic and biochemical studies of Spt4, Spt5, and Spt6 that reveal a role for these factors in transcription e...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.12.3.357
更新日期:1998-02-01 00:00:00
abstract::The Tat protein of human immunodeficiency virus type 1 (HIV-1) activates transcription following binding to nascent trans-activation response (TAR) RNA downstream of the transcription start site. Because Tat functions when bound to RNA, and in a position-dependent manner, it has been proposed that Tat works by a novel...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.5.12b.2496
更新日期:1991-12-01 00:00:00
abstract::The mechanisms of RNA replication of plus-strand RNA viruses are still unclear. Here, we identified the first promoter element for RNA synthesis described in a flavivirus. Using dengue virus as a model, we found that the viral RdRp discriminates the viral RNA by specific recognition of a 5' element named SLA. We demon...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1444206
更新日期:2006-08-15 00:00:00
abstract::Bistability in developmental pathways refers to the generation of binary outputs from graded or noisy inputs. Signaling thresholds are critical for bistability. Specification of the left/right (LR) axis in vertebrate embryos involves bistable expression of transforming growth factor beta (TGFbeta) member NODAL in the ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1682108
更新日期:2008-11-01 00:00:00
abstract::Irradiation in the G1 phase of the cell cycle delays the onset of DNA synthesis and transiently inhibits the activation of replication origins in mammalian cells. It has been suggested that this inhibition is the result of the loss of torsional tension in the DNA after it has been damaged. Because irradiation causes D...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.8.5.554
更新日期:1994-03-01 00:00:00
abstract::An RNA-based gene silencing pathway that protects bacteria and archaea from viruses and other genome invaders is hypothesized to arise from guide RNAs encoded by CRISPR loci and proteins encoded by the cas genes. CRISPR loci contain multiple short invader-derived sequences separated by short repeats. The presence of v...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1742908
更新日期:2008-12-15 00:00:00
abstract::The female mammary gland is a very dynamic organ that undergoes continuous tissue remodeling during adulthood. Although it is well established that the number of menstrual cycles and pregnancy (in this case transiently) increase the risk of breast cancer, the reasons are unclear. Growing clinical and experimental evid...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.292318.116
更新日期:2017-03-15 00:00:00
abstract::The 134-bp enhancer region of the pancreatic elastase I gene is sufficient to direct pancreatic acinar cell-specific transcription in transgenic mice and in transfected cells in culture. Ten-base-pair scanner mutations in three separate enhancer domains that inactivate enhancer function in transfected pancreatic cells...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.3.5.687
更新日期:1989-05-01 00:00:00
abstract::Human TFIIA activity is composed of three subunits (alpha, beta, gamma). Here we report the isolation of a human cDNA clone encoding the gamma-subunit and the reconstitution of TFIIA activity from recombinant polypeptides (holo-TFIIA). Protein-protein interaction analysis established that the beta and gamma subunits o...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.8.19.2336
更新日期:1994-10-01 00:00:00
abstract::SNF2 chromatin-remodeling ATPases play an important role in ensuring proper development in higher eukaryotes by controlling accessibility of cis-regulatory DNA regions to transcription factors and to the transcriptional machinery. However, the biological targets controlled by these ATPases are largely unknown. Using g...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1276305
更新日期:2005-04-15 00:00:00
abstract::Neurofibromatosis type 1 (NF1) is a prevalent genetic disorder that affects growth properties of neural-crest-derived cell populations. In addition, approximately one-half of NF1 patients exhibit learning disabilities. To characterize NF1 function both in vitro and in vivo, we circumvent the embryonic lethality of NF1...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.862101
更新日期:2001-04-01 00:00:00
abstract::Autophagy is crucial for cellular homeostasis and plays important roles in tumorigenesis. FIP200 (FAK family-interacting protein of 200 kDa) is an essential autophagy gene required for autophagy induction, functioning in the ULK1-ATG13-FIP200 complex. Our previous studies showed that conditional knockout of FIP200 sig...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.237354.113
更新日期:2014-06-01 00:00:00
abstract::A complex array of genetic factors regulates neuronal dendrite morphology. Epigenetic regulation of gene expression represents a plausible mechanism to control pathways responsible for specific dendritic arbor shapes. By studying the Drosophila dendritic arborization (da) neurons, we discovered a role of the double-br...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.239962.114
更新日期:2014-09-01 00:00:00
abstract::In the metazoan germline, piwi proteins and associated piwi-interacting RNAs (piRNAs) provide a defense system against the expression of transposable elements. In the cytoplasm, piRNA sequences guide piwi complexes to destroy complementary transposon transcripts by endonucleolytic cleavage. However, some piwi family m...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.209841.112
更新日期:2013-02-15 00:00:00
abstract::Oxidative tissues such as heart undergo a dramatic perinatal mitochondrial biogenesis to meet the high-energy demands after birth. PPARgamma coactivator-1 (PGC-1) alpha and beta have been implicated in the transcriptional control of cellular energy metabolism. Mice with combined deficiency of PGC-1alpha and PGC-1beta ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.1661708
更新日期:2008-07-15 00:00:00
abstract::The SNF1 protein kinase is broadly conserved in eukaryotes and has been implicated in responses to environmental and nutritional stress. In yeast, the SNF1 kinase has a central role in the response to glucose starvation. SNF1 is associated with its activating subunit, SNF4, and other proteins in complexes. Using the t...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.10.24.3105
更新日期:1996-12-15 00:00:00
abstract::Early during Dictyostelium development a fundamental cell-fate decision establishes the anteroposterior (prestalk/prespore) axis. Signaling via the 7-transmembrane cAMP receptor CAR4 is essential for creating and maintaining a normal pattern; car4-null alleles have decreased levels of prestalk-specific mRNAs but enhan...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.11.16.2112
更新日期:1997-08-15 00:00:00
abstract::The td, nrdB, and sunY introns of bacteriophage T4 each contain a long open reading frame (ORF). These ORFs are preceded by functional T4 late promoters and, in the case of the nrdB intron ORF, a functional middle promoter. Expression of phage-encoded intron ORF-lacZ fusions indicates that these T4 genes are highly re...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.2.12b.1791
更新日期:1988-12-01 00:00:00
abstract::Transcription of the cell-cycle-regulated human histone genes increases approximately fivefold during S phase. One step toward the elucidation of the biochemical mechanisms that govern cell-cycle-regulated expression of these genes is to purify and characterize the transcription factors that regulate these promoters. ...
journal_title:Genes & development
pub_type: 杂志文章
doi:10.1101/gad.2.12b.1700
更新日期:1988-12-01 00:00:00