Abstract:
:Marrow stromal cells (MSCs) are stem-like cells having a striking somatic plasticity. In fact, besides differentiating into mesenchymal lineages (bone, cartilage, and fat), they are capable of differentiating into neurons and astrocytes in vitro and in vivo. The RB and RB2/P130 genes, belonging to the retinoblastoma gene family, play a key role in neurogenesis, and for this reason, we investigated their role in neural commitment and differentiation of MSCs. In MSCs that were either uncommitted or committed toward neural differentiation, we ectopically expressed RB and RB2/P130 genes and analyzed their role in regulating the cell cycle, apoptosis and differentiation. In uncommitted MSCs, the activity of RB and RB2/P130 appeared limited to negatively regulating cell cycle progression, having no role in apoptosis and differentiation (toward either mesenchymal or neural lineages). On the other hand, in MSCs committed toward the neural phenotype, both RB and RB2/P130 reduced cell proliferation rate and affected the apoptotic process. RB protected differentiating cells from programmed cell death. On the contrary, RB2/P130 increased the percentage of cells in apoptosis. All of these activities were accomplished mainly in an HDAC-independent way. The retinoblastoma genes also influenced differentiation in neural committed MSCs. RB2/P130 contributes mainly to the induction of generic neural properties, while RB triggers cholinergic differentiation. These differentiating activities are HDAC-dependent. Our research shows that there is a critical temporal requirement for the RB genes during neuronal differentiation of MSCs: they are not required for cell commitment but play a role in the maturation process. For the above reasons, RB and RB2/P130 may have a role in neural differentiation but not in neural determination.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Jori FP,Napolitano MA,Melone MA,Cipollaro M,Cascino A,Giordano A,Galderisi Udoi
10.1002/jcp.20026keywords:
subject
Has Abstractpub_date
2004-08-01 00:00:00pages
201-12issue
2eissn
0021-9541issn
1097-4652journal_volume
200pub_type
杂志文章abstract::The study was conducted on human leukemia (K 562) cells to characterize the mechanisms implicated in the regulation of the polyamine spermidine (Spd) transport process. The antagonists of calmodulin, trifluoperazine (TFP), W-7 (N-[6-aminohexyl]-5-chloro-1-naphthelenesulfonamide), or mellitin inhibited significantly po...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041570308
更新日期:1993-12-01 00:00:00
abstract::We have previously identified two stimulatory activities affecting blood cell maturation in PHA-stimulated human lymphocytes conditioned medium (PHA-LyCM). One was granulocyte-macrophage colony stimulatory activity (GM-CSA), and the other was T lymphocyte growth stimulatory activity (TL-GSA) in suspension culture. In ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041010206
更新日期:1979-11-01 00:00:00
abstract::Repetitive mechanical stimulation of cultured avian skeletal muscle increases the synthesis of prostaglandins (PG) E2 and F2 alpha which regulate protein turnover rates and muscle cell growth. These stretch-induced PG increases are reduced in low extracellular calcium medium and by specific phospholipase inhibitors. M...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041550109
更新日期:1993-04-01 00:00:00
abstract::Dishevelled-associated activator of morphogenesis 1 (DAAM1) is a formin-family protein involved in nucleation of unbranched actin filaments and in cytoskeletal organization through Wnt-Dishevelled PCP pathway, which participates in essential biological processes, such as cell polarity, movement, and adhesion during mo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25330
更新日期:2016-10-01 00:00:00
abstract::The role of diacylglycerol (DAG) in hormonal induction of S phase was investigated in primary cultures of rat hepatocytes. In this model, several agonists that bind to G protein-coupled receptors act as comitogens when added to the cells soon after plating (i.e., in Go/early Gl phase), while the cells are most respons...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199908)180:2<203::AID-JCP8
更新日期:1999-08-01 00:00:00
abstract::Cancer chemotherapy can cause significant damage to the bone marrow (BM) microvascular (sinusoidal) system. Investigations must now address whether and how BM sinusoidal endothelial cells (SECs) can be protected during chemotherapy. Herein we examined the potential protective effects of genistein, a soy-derived flavon...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27785
更新日期:2019-07-01 00:00:00
abstract::We have previously observed major differences in the phosphorylation of membrane proteins in sparse, proliferating versus confluent, quiescent pig aortic endothelial cells (EC) (Kazlauskas and DiCorleto, 1987). In the present study we examined whether EC growth state can influence the activity of a specific phosphoryl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041360306
更新日期:1988-09-01 00:00:00
abstract::Tumors and multicellular tumor spheroids can develop gradients in oxygen concentration, glucose concentration, and extracellular pH as they grow. In order to calculate these gradients and assess their impact on tumor growth, it is necessary to quantify the effect of these variables on tumor cell metabolism and growth....
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041510220
更新日期:1992-05-01 00:00:00
abstract::Osteoporosis (OP) is a metabolic disease caused by multiple factors, which is characterized by a reduction of bone mass per unit volume and destruction of bone microstructure. Aberrant osteoclast function is the main cause of OP, therefore, regulating the differentiation and function of osteoclast is one of the treatm...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28079
更新日期:2019-08-01 00:00:00
abstract::Curcumin is known to be a potent wound healer. Despite this, studies on curcumin using certain model systems have shown it to be anti-angiogenic. Results of the present investigations suggest that curcumin causes opposing effects on angiogenesis in serum stimulated and unstimulated conditions. The evidence in support ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21307
更新日期:2008-04-01 00:00:00
abstract::The effect of hypoxia on 3T3-L1 cell differentiation was examined in confluent cultures incubated with differentiation medium (DM) followed by incubation in growth medium (GM). Control cultures remained in GM throughout the incubation period. Eight days after the incubation, cells were assessed either for changes in m...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041600113
更新日期:1994-07-01 00:00:00
abstract::The myelin basic protein (MBP) gene contains sequences located upstream of its transcription start site which play a key role in glial-specific transcription of the MBP promoter. Earlier analysis of the 320 bp upstream regulatory sequence of MBP has revealed multiple cis-acting regulatory motifs which differentially r...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041630213
更新日期:1995-05-01 00:00:00
abstract::Tumor necrosis factor-alpha (TNF-alpha) is a pleiotropic cytokine produced by activated macrophages. IL-6 is a multifunctional cytokine that plays a central role in both innate and acquired immune responses. We investigated the signaling pathway involved in IL-6 production stimulated by TNF-alpha in cultured myoblasts...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22047
更新日期:2010-05-01 00:00:00
abstract::Cementum, which shares common features with bone in terms of biochemical composition, is important for the homeostasis of periodontium during periodontitis and orthodontic treatment. Sirtuin 6 (SIRT6), as a member of the sirtuin family, plays key roles in the osteogenic differentiation of bone marrow mesenchymal stem ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27213
更新日期:2019-04-01 00:00:00
abstract::Obese women offspring have a higher risk of developing chronic diseases associated with an altered immune function. We aim to determine, in neonatal monocyte-derived macrophages, whether maternal obesity is associated with an altered expression and DNA methylation of pro- and anti-inflammatory genes, along with a high...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25845
更新日期:2017-12-01 00:00:00
abstract::Intestinal cells were isolated by a combination of mechanical and enzymatic means, and their calcium uptake was assayed by a rapid filtration procedure. Calcium uptake was a time- and concentration-dependent process that was markedly elevated at 25 and 37 degrees C, as compared to 0 degree C. Cells isolated from rat d...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041160309
更新日期:1983-09-01 00:00:00
abstract::The glucose analogues, 3-O-methyl-D-glucose and 2-deoxy-D-glucose, have been used to characterize glucose transport and its regulation by serum and growth factors in monolayer cultures of granulosa cells obtained from bovine ovaries. Uptake of 3-O-methylglucose was shown to be independent of the Na+-gradient, independ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041080104
更新日期:1981-07-01 00:00:00
abstract::Brain ischemia is associated with an acute release of pro-inflammatory cytokines, notably TNF-alpha and IL-6 and failure of the blood-brain barrier. Shear stress, hypoxia-hypoglycemia, and blood leukocytes play a significant role in blood-brain barrier failure during transient or permanent ischemia. However, these mec...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20429
更新日期:2006-01-01 00:00:00
abstract::There are two known phosphorylation-mediated inactivation mechanisms for TRPC3 channels. Protein kinase G (PKG) inactivates TRPC3 by direct phosphorylation on Thr-11 and Ser-263 of the TRPC3 proteins, and protein kinase C (PKC) inactivates TRPC3 by phosphorylation on Ser-712. In the present study, we explored the rela...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20567
更新日期:2006-05-01 00:00:00
abstract::Skeletal muscle dysfunction contributes to exercise limitation in COPD. In this study cigarette smoke exposure was hypothesized to increase expression of the inflammatory cytokine, TNF-alpha, thereby suppressing PGC-1alpha, and hence affecting down stream molecules that regulate oxygen transport and muscle function. F...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21955
更新日期:2010-02-01 00:00:00
abstract::Polyoma transformed hamster cells (PyBHK) and SV40 transformed mouse cells (SV3T3) were transferred in culture using crystalline trypsin followed by neutralisation with soybean trypsin inhibitor. Such cells were able to proliferate freely in defined medium without any serum supplement and without any intervening perio...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040900319
更新日期:1977-03-01 00:00:00
abstract::Osteosarcoma is the most common malignant primary bone tumor in children and adolescents. The clinical outcome for osteosarcoma remains discouraging despite aggressive surgery and intensive radiotherapy and chemotherapy regimens. Thus, novel therapeutic approaches are needed. Previously, we have shown that inorganic p...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24124
更新日期:2013-01-01 00:00:00
abstract::The molecular weight of rat basic fibroblast growth factor is predicted to be 18 kDa when the amino acid sequence is read from the single AUG initiation codon found in the cDNA. DNA sequencing upstream of this AUG codon indicated, however, that there was an extended open reading frame. In vitro translation of the rat ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041480204
更新日期:1991-08-01 00:00:00
abstract::The role of calmodulin (CaM) in modulating calcium (Ca) uptake by sarcoplasmic reticulum (SR) of vascular smooth muscle was studied in saponin skinned strips of rat caudal artery. Exogenous CaM concentrations ranging from 0.3-1.8 microM did not statistically change the steady state MgATP-dependent Ca content, the MgAT...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041530121
更新日期:1992-10-01 00:00:00
abstract::We recently derived a series of transformed cell lines by transfecting mouse bone marrow cells highly enriched for macrophage progenitors with a newly described human gene, R-myc, which has homology to the c-myc oncogene. In this report, we show that these lines share some features characteristic of cells of the monon...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041250307
更新日期:1985-12-01 00:00:00
abstract::Cytoskeleton not only controls cell morphology but also regulates cell growth, migration, differentiation, and gene expression, events which are fundamental to embryogenesis, carcinogenesis, and wound healing. We have recently reported that reorganization of cytoskeleton induces expression of mRNA for transforming gro...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199708)172:2<192::AID-JCP6
更新日期:1997-08-01 00:00:00
abstract::Interleukin (IL)-37 diminishes a variety of inflammatory responses through ligation to its receptor IL-1R8/Sigirr. Sigirr is a Toll like receptor/IL-1R family member. We have shown that Sigirr is not stable in response to IL-37 treatment. IL-37-induced Sigirr degradation is mediated by the ubiquitin-proteasome system,...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.30253
更新日期:2021-01-05 00:00:00
abstract::Pin1 is a peptidyl prolyl cis-trans isomerase that specifically binds to the phosphoserine-proline or phosphothreonine-proline motifs of numerous proteins. Previously, we reported that Pin1 deficiency resulted in defects in osteoblast differentiation during early bone development. In this study, we found that adult Pi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24787
更新日期:2015-03-01 00:00:00
abstract::Biosensors are composed of (bio)receptors, transducers, and detection systems and are able to convert the biological stimulus into a measurable signal. This systematic review evaluates the current state of the art of innovation and research in this field, identifying the biosensors that in vitro monitor the musculoske...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28753
更新日期:2019-12-01 00:00:00
abstract::The peroxisome proliferation-activated receptor gamma (PPARgamma) is mainly expressed in the adipose tissue and integrates the control of energy, lipid, and glucose homeostasis. The present study, by means of RT-PCR, Western blot, and immunofluorescence techniques, demonstrates that human sperm express the PPARgamma. ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20807
更新日期:2006-12-01 00:00:00