Abstract:
:Eukaryotic organisms package DNA into chromatin for compact storage in the cell nucleus. However, this process promotes transcriptional repression of genes. To overcome the transcriptional repression, chromatin remodeling complexes have evolved that alter the configuration of chromatin packaging of DNA into nucleosomes by histones. The SWI/SNF chromatin remodeling complex uses energy from ATP hydrolysis to reposition nucleosomes and make DNA accessible to transcription factors. Recent studies showing mutations of BRG1, one of two mutually exclusive ATPase subunits, in human tumor cell lines and primary tissue samples have implicated a role for its loss in cancer development. While most of the mutations lead to complete loss of BRG1 protein expression, others result in single amino acid substitutions. To better understand the role of these BRG1 point mutations in cancer development, we characterized SWI/SNF function in human tumor cell lines with these mutations in the absence of BRM expression, the other ATPase component. We found that the mutant BRG1 proteins still interacted with the core complex members and appeared at the promoters of target genes. However, while these mutations did not affect CD44 and CDH1 expression, known targets of the SWI/SNF complex, they did abrogate Rb-mediated cell-cycle arrest. Therefore, our results implicate that these mutations disrupt the de novo chromatin remodeling activity of the complex without affecting the status of existing nucleosome positioning.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Bartlett C,Orvis TJ,Rosson GS,Weissman BEdoi
10.1002/jcp.22533subject
Has Abstractpub_date
2011-08-01 00:00:00pages
1989-97issue
8eissn
0021-9541issn
1097-4652journal_volume
226pub_type
杂志文章abstract::Osteoclasts and macrophages share progenitors that must receive decisive lineage signals driving them into their respective differentiation routes. Macrophage colony stimulation factor M-CSF is a common factor; bone is likely the stimulus for osteoclast differentiation. To elucidate the effect of both, shared mouse bo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24702
更新日期:2015-01-01 00:00:00
abstract::Mouse fetuses at 15th and 18th day of gestation, and newborns aging 0, 5, 10, and 15 days were injected i.p. with 131 I-albumin (RISA). The degree of incorporation by liver and the intraparticulate hydrolysis of RISA in 27,000g x 10 min. particles increased after birth. By this time, changes in subcellular distributio...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041090211
更新日期:1981-11-01 00:00:00
abstract::Induction of vascular smooth muscle (VSM) alpha-actin mRNA expression during cytodifferentiation of mouse BC3H1 myogenic cells coincides with the accumulation of cell surface- and extracellular matrix-associated sulfated proteoglycans. Inhibition of proteoglycan biosynthesis in myogenic cells using an artificial beta-...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041640122
更新日期:1995-07-01 00:00:00
abstract::Chronic exposure of pancreatic beta-cells to supraphysiologic glucose causes adverse beta-cell dysfunction. Thus, the present study was aimed to investigate the hypothesis that oral administration of resveratrol attenuates hyperglycemia, proinflammatory cytokines and antioxidant competence and protects beta-cell ultra...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22138
更新日期:2010-08-01 00:00:00
abstract:BACKGROUND:In this study, we aimed to explore the effects of GAS5 single-nucleotide polymorphisms (SNPs) on GAS5 expression. And the signaling pathways underlying the function of GAS5 during the pathogenesis of prostate cancer (PC) were clarified. MATERIALS AND METHODS:Patients with PC were recruited and grouped accor...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27561
更新日期:2019-06-01 00:00:00
abstract::Islets of Langerhans control whole body glucose homeostasis, as they respond, releasing hormones, to changes in nutrient concentrations in the blood stream. The regulation of hormone secretion has been the focus of attention for a long time because it is related to many metabolic disorders, including diabetes mellitus...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.25176
更新日期:2016-04-01 00:00:00
abstract::Osteoporosis is a class of metabolic bone disease caused by complexed ramifications. Overactivation of osteoclasts due to a sudden decreased estrogen level plays a pivotal role for postmenopausal women suffering from osteoporosis. Therefore, inhibiting osteoclast formation and function has become a major direction for...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28289
更新日期:2019-02-27 00:00:00
abstract::Activation of T-lymphocytes by antigen, mitogenic lectins, or antibodies against the T-cell receptor complex, particularly in the presence of IL1, induces the secretion of the T-cell growth factor IL2. IL2 then has a major role in regulating the duration and magnitude of the immune response. Interaction of antigen, an...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041410212
更新日期:1989-11-01 00:00:00
abstract::Leukotriene C4 is an arachidonic acid metabolite and an important mediator of inflammation and anaphylaxis that is known to induce production of prostacyclin in endothelial cells. The goal of this study was to examine the signal transduction mechanisms activated by leukotriene C4 stimulation. Formation of inositol pho...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199810)177:1<103::AID-JCP1
更新日期:1998-10-01 00:00:00
abstract::Apoptosis is also known as programmed cell death. Apoptosis plays an essential role in maintaining normal tissue and cell physiology in multicellular organisms. Clearance of aberrant or pre-cancerous cells occurs through the induction of apoptosis. It has been reported that many tumors and tumor cell lines have dysfun...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.10338
更新日期:2004-06-01 00:00:00
abstract::Autophagy is the general term of lysosomal degradation of substances in cells, which is considered the key to maintaining the normal structure and function of the heart. It also has a correlation with several heart diseases, in particular, myocardial ischemia/reperfusion (I/R) injury. At the stage of myocardial ischem...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.28125
更新日期:2019-08-01 00:00:00
abstract::P2Y(2) receptor expression is increased in intestinal epithelial cells (IECs) during inflammatory bowel diseases (IBDs). In this context, P2Y(2) stimulates PGE(2) release by IECs, suggesting a role in wound healing. For this study, we have used the non-cancerous IEC-6 cell line. IEC-6 cell migration was determined usi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24109
更新日期:2013-01-01 00:00:00
abstract::We observed previously that each of seven cancer progression inhibitors suppresses the mRNA expression of some matrix metalloproteinases (MMPs), but stimulates that of others, in breast cancer cells. In the present study we tested the effect of overexpressing other cancer modulators on MMP expression. The MMPs tested ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22694
更新日期:2011-12-01 00:00:00
abstract::Tight junctions govern the paracellular permeability of endothelial and epithelial cells. Aberrations of tight junction function are an early and key event during the vascular spread of cancer and inflammation. This study sought to determine the role of estrogen in the regulation of tight junctions and expression of m...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10315
更新日期:2003-08-01 00:00:00
abstract::The calcium-sensitive fluorescent indicator fura-2 and a microscope equipped for rapidly changing excitation wavelengths were used to look at the effects of growth factors on cytosolic free calcium ([Ca2+]i) in NRK-49F cells. In these cells bradykinin induced a rapid increase in [Ca2+]i, which generally decayed to nea...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041360318
更新日期:1988-09-01 00:00:00
abstract::Cultured pig kidney cells designated LLC-PK1, previously shown to acquire Na+-dependent concentrative transport of hexoses as the cells become growth arrested, also show Na+-dependent concentrative uptake of the amino acid analogs alpha-aminoisobutyric acid (AIB) and (methyl) meAIB. This A system-like transport is mos...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041140207
更新日期:1983-02-01 00:00:00
abstract::Melanoma as the most major skin malignancy has attracted much attention, so far. Although a successful therapeutic strategy requires an accurate understanding of the precise mechanisms for the initiation and progression of the melanoma. Several types of cell death mechanisms have recently been identified along with co...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.28740
更新日期:2019-11-01 00:00:00
abstract::Multiple studies have reported different methods in treating gestational diabetes mellitus (GDM); however, the relationship between miR-335-5p and GDM still remains unclear. Here, this study explores the effect of miR-335-5p on insulin resistance and pancreatic islet β-cell secretion via activation of the TGFβ signali...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27406
更新日期:2019-05-01 00:00:00
abstract::Four temperature-sensitive (ts) mutants of rat 3Y1 fibroblasts, representing independent complementation groups, cease to proliferate predominantly with a 2n DNA content, at the restrictive temperature (39.8 degrees C) (temperature arrest) or at the permissive temperature (33.8 degrees C) at a confluent cell density (...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041230310
更新日期:1985-06-01 00:00:00
abstract::Synovial fibroblasts (SFs) of rheumatoid arthritis (RA) are phenotypically aggressive, typically progressing into arthritic cartilage degradation. Throughout our study, we made explorations into the effects of microRNA-135a (miR-135a) on the SFs involved in RA by mediating the phosphatidylinositol 3-kinase (PI3K)/AKT ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28390
更新日期:2019-08-01 00:00:00
abstract::The ultimate destiny of a cell to undergo division, differentiation, survival, and death results from an intricate balance between multiple regulators including oncogenes, tumor suppressor genes, and cell cycle associated proteins. Deregulation of the cell cycle machinery switches the phenotype from a normal cell to a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.10117
更新日期:2002-08-01 00:00:00
abstract::EL 4-6.1 cells, variants of the murine EL4 thymoma cell line, can be activated by interleukin 1 (IL-1) or phorbol 12-myristate-13-acetate (PMA), or PMA+IL-1 to secrete interleukin 2 (IL-2) and interleukin 4 (IL-4) and to express the IL-2 receptor (IL-2R). To compare the different activation pathways, we examined the e...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041510112
更新日期:1992-04-01 00:00:00
abstract::We have investigated the kinetics of fluid-phase endocytosis and diacytosis in confluent monolayers of human fibroblasts by comparing the behavior of three markers that have been previously used to study this process: [14C]sucrose, 125I-labeled polyvinylpyrrolidone ([125I]PVP), and Lucifer Yellow. Three distinct kinet...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041360302
更新日期:1988-09-01 00:00:00
abstract::Proteasome inhibitors represent a promising therapy for the treatment of relapsed and/or refractory multiple myeloma, a disease that is concomitant with osteolysis and enhanced osteoclast formation. While blockade of the proteosome pathway has been recently shown to influence osteoclast formation and function, the pre...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21787
更新日期:2009-08-01 00:00:00
abstract::Sarcolectin is an endolectin present in a great variety of conjunctival tissues (muscles, cartilage, sarcomas), but also in brain or placental extracts of vertebrates, including primates. When purified to electrophoretical homogeneity as a 65-kd protein, it agglutinates cells and has an affinity for simple sugars. In ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041450123
更新日期:1990-10-01 00:00:00
abstract::Suramin is an anti-cancer drug which induces the differentiation of the human colon cancer clone HT29-D4. Yet chronic suramin treatment of these cells eventually leads to a marked disturbance of the lysosomal system, which consists in an accumulation of hypertrophied autophagic vacuoles and the occurrence of lamellate...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041500122
更新日期:1992-01-01 00:00:00
abstract::When human diploid fibroblasts IMR-90 are cultured in routinely used medium (Eagle's basal medium supplemented with 10% fetal calf serum), sulfhydryl compounds appear in the medium. The major component of these sulfhydryl compounds is cysteine, and it is shown that a part of medium cystine is converted into cysteine b...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041040211
更新日期:1980-08-01 00:00:00
abstract::Circular RNAs (circRNAs) play critical roles in signal transduction during cell proliferation, differentiation, and apoptosis in a posttranscriptional manner. Recently, circRNAs have been proved to be a large class of animal RNAs with regulatory potency. However, whether circRNAs can respond to mechanical force (MF) a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27686
更新日期:2019-07-01 00:00:00
abstract::Low-power laser irradiation (LPLI) has been shown to exert promotive effects on cell survival and proliferation through activation of various signaling pathways. Estrogen receptors (ERs, ERα, and ERβ) are ligand-activated transcription factors, which regulate target gene expression, promote cell proliferation, and res...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24252
更新日期:2013-05-01 00:00:00
abstract::This study examined the role of agonist-induced Rho kinase (ROCK) involvement in the morphological outcome of pulmonary-derived fibroblasts. Normal human lung fibroblasts (NHLF) spontaneously differentiate into network-like structures in a two-dimensional growth factor reduced Matrigel matrix-based assay. Sphingosine ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20939
更新日期:2007-05-01 00:00:00