Abstract:
:Mouse keratinocytes are induced to differentiate in vitro by elevating the level of extracellular calcium from 0.05 mM, where keratinocytes express a basal cell phenotype, to greater than 0.10 mM, where they express the differentiated phenotype. This process has been associated with a rapid, sustained increase in inositol phosphate (InsP) turnover, which precedes the expression of differentiation-specific proteins. In 0.05 mM Ca2+ medium, aluminum and fluoride salts (AIF4-), which combine to activate nonspecifically heterotrimeric guanine nucleotide-binding (G) proteins, cause a concentration-dependent increase in InsP metabolism in keratinocytes, and generate elevated intracellular diacylglycerol levels. This is associated with an inhibition of cell growth. Treatment with both AIF4- and Ca2+ greater than 0.10 mM resulted in an additive increase in InsP turnover, implying the presence of at least two responsive InsP pools. AIF4- inhibited the expression of differentiation markers induced by Ca2+ greater than 0.10 mM and altered the morphology of keratinocytes from squamous to dendritic, which was reversible upon withdrawal of AIF4-. Neoplastic keratinocytes, in which basal levels of InsP metabolism are higher than in normal cells, do not differentiate in response to Ca2+. Neoplastic keratinocytes responded to AIF-4 treatment with an even greater rise in InsP metabolism. AIF-4 also inhibited cell growth and reversibly altered morphology in neoplastic keratinocytes. These data suggest that InsP metabolism in keratinocytes is at least partially regulated by a G protein mechanism. Furthermore, an increase in InsP metabolism is not sufficient to stimulate differentiation and may be inhibitory to differentiation if exceeding limited increases. However, these observations cannot exclude the possibility that other AIF-4 stimulated pathways involving G or non-G proteins can also influence keratinocyte biology.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Lee E,Yuspa SHdoi
10.1002/jcp.1041480113subject
Has Abstractpub_date
1991-07-01 00:00:00pages
106-15issue
1eissn
0021-9541issn
1097-4652journal_volume
148pub_type
杂志文章abstract::Acupuncture needle rotation has been previously shown to cause specific mechanical stimulation of subcutaneous connective tissue. This study uses acupuncture to investigate the role of mechanotransduction-based mechanisms in mechanically-induced cytoskeletal remodeling. The effect of acupuncture needle rotation was qu...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20623
更新日期:2006-06-01 00:00:00
abstract::Hepatocellular carcinoma (HCC) is one of the most common malignancies and is a serious threat to people's health worldwide. The prognosis of advanced HCC is dim if left untreated. In the clinic, the treatment options for advanced HCC include surgery, radiotherapy, transcatheter arterial chemoembolization, and so forth...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.28048
更新日期:2019-08-01 00:00:00
abstract::While mesenchymal stem cells (MSCs) have been widely used to repair radiation-induced bone damage, the molecular mechanism underlying the effects of MSCs in the maintenance of bone homeostasis under radiation stress remains largely unknown. In this study, the role and mechanisms of R-spondin 1 (Rspo1)-leucine-rich rep...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.30051
更新日期:2021-01-16 00:00:00
abstract::Atherosclerosis is one of the leading causes of morbidity and mortality, mainly due to the immune response triggered by the recruitment of monocytes/macrophages in the artery wall. Accumulating evidence have shown that matrix stiffness and oxidized low-density lipoproteins (ox-LDL) play important roles in atherosclero...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29543
更新日期:2020-09-01 00:00:00
abstract::We investigated the regulation of Cl- secretion by adrenoceptors in polarized 16HBE14o- human bronchial epithelial cells. Treatment with the nonselective β adrenoceptor agonist isoprenaline stimulated an increase in short-circuit current (ISC ), which was inhibited by the β adrenoceptor blocker propranolol. Treatment ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29683
更新日期:2020-11-01 00:00:00
abstract::Numerous reports have appeared on the occurrence of undefined protein factors in male reproductive fluids that promote motility of mature sperm and initiate forward motility in the immature (immotile) caput-epididymal sperm. This study reports for the first time purification to apparent homogeneity of a motility initi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21947
更新日期:2010-01-01 00:00:00
abstract::The actin- and myosin-binding protein, caldesmon (CaD) is an essential component of the cytoskeleton in smooth muscle and non-muscle cells and is involved in the regulation of cell contractility, division, and assembly of actin filaments. CaD is abundantly present in endothelial cells (EC); however, the contribution o...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20244
更新日期:2005-06-01 00:00:00
abstract::Vero (African green monkey kidney) cells grown in tissue culture monolayer were sensitive to Clostridium perfringens enterotoxin. Within 30 minutes of exposure to the enterotoxin gross morphological damage was observed and within 40 minutes approximately 75% of the cells had detached. Nearly half of the cells were non...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040990205
更新日期:1979-05-01 00:00:00
abstract::AMAP1 was a GTPase-activating protein that regulates cytoskeletal structures in focal adhesions, circular dorsal ruffles, and promote cell differentiation in tumor cells. But the activation and function of AMAP1 in breast cancer remain largely unexplored. Here we show that AMAP1 was phosphorylated and translocated to ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26164
更新日期:2018-04-01 00:00:00
abstract::Human promyelocytic leukemia (HL-60) cells display a novel voltage-dependent outward current under voltage clamp. This current is present at low levels in the proliferative state and in granulocytes derived from HL-60 cells which were induced to differentiate with retinoic acid. It is elevated in macrophages derived f...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041320227
更新日期:1987-08-01 00:00:00
abstract::Basic fibroblast growth factor (bFGF, FGF-2) is progressively lost from mammary epithelial cells as they become malignant. To investigate the effects of restoring the expression of bFGF in breast cancer cells, we constructed MCF-7 cells that permanently overexpress 18-kD cytoplasm-localizing bFGF (MCF-7/deltaA(FGF)(18...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199812)177:3<411::AID-JCP5
更新日期:1998-12-01 00:00:00
abstract::Galectins play key roles in the inflammatory cascade. In this study, we aimed to analyze the effect of galectin-1 (Gal-1) in the function of intestinal epithelial cells (IECs) isolated from healthy and inflamed mucosa. IECs isolated from mice or patients with inflammatory bowel diseases (IBD) were incubated with diffe...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25249
更新日期:2016-07-01 00:00:00
abstract::Nerve-evoked contractile activity in skeletal muscle regulates transcript and protein levels of many metabolic genes in a coordinate fashion, including the muscle isozyme of glycogen phosphorylase (MGP). Cellular signaling mechanisms mediating the activity-dependent modulation of MGP transcript levels were investigate...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/1097-4652(200011)185:2<184::AID-JCP3>3.0.C
更新日期:2000-11-01 00:00:00
abstract::Histone deacetylase 2 (HDAC2) catalyzes deacetylation of histones at the promoter and coding regions of transcribed genes and regulates chromatin structure and transcription. To explore the role of HDAC2 and phosphorylated HDAC2 in gene regulation, we studied the location along transcribed genes, the mode of recruitme...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26078
更新日期:2018-02-01 00:00:00
abstract::Non-small-cell lung cancer (NSCLC) remains the leading cause of cancer death worldwide. As a platinum-based chemotherapeutic drug, cisplatin has been used for over 30 years in NSCLC treatment while its effects are diminished by drug resistance. Therefore, we aimed to study the potential role of UCA1 in the development...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29266
更新日期:2020-04-01 00:00:00
abstract::An analysis of which component of lipopolysaccharides (LPS), the lipid or the polysaccharide (PS), is active in stimulating the murine granulopoietic system has been performed. LPS with different structures, isolated from different mutant strains of Salmonella and chemical degradation products of lipopolysaccharides h...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040870110
更新日期:1976-01-01 00:00:00
abstract::The carboxyl-terminal domain (CTD) of the largest subunit of mammalian RNA polymerase II (RNAP II) consists of 52 repeats of a consensus heptapeptide and is subject to phosphorylation and dephosphorylation events during each round of transcription. RNAP II activity is regulated during the cell cycle and cell cycle-dep...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.10058
更新日期:2002-02-01 00:00:00
abstract::Cellular senescence is a growth-arrest program that limits cell proliferation. Low-power laser irradiation (LPLI) has been demonstrated to promote cell proliferation. However, whether LPLI can inhibit cellular senescence remains unknown. In the present study, to investigate the functional role of LPLI against skin agi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24425
更新日期:2014-01-01 00:00:00
abstract::Acetylcholine (ACh) protected against cardiac injury via promoting autophagy and mitochondrial biogenesis, however, the involvement of mitophagy in ACh-elicited cardioprotection remains unknown. In the present study, H9c2 cardiomyocytes were subjected to hypoxia/reoxygenation (H/R) and ACh treatment during reoxygenati...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25215
更新日期:2016-05-01 00:00:00
abstract::Adhesion of human monocytes and granulocytes to vascular endothelium plays an important role in migration of these cells to inflammatory sites in tissues. A family of three human leukocyte heterodimeric surface molecules named Mo1, LFA-1, and p150,95 (LeuM5) has been shown to mediate leukocyte adhesion to confluent mo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041370214
更新日期:1988-11-01 00:00:00
abstract::Reactivation of dormant chick erythrocyte (CE) nuclei was studied by fusing chick red cells with rat myoblasts, HeLa cells, and chick fibroblasts. Heterokaryons representing different stages of nuclear reactivation were fixed and examined for nuclear antigens using polyclonal patient autoantisera reacting with mammali...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041200221
更新日期:1984-08-01 00:00:00
abstract::Fluorescence anisotropy measurements are widely used as sensitive indicators of cell membrane fluidity. 1-[4-(trimethylamino)phenyl]-6-phenyl hexa-1,3,5-triene (TMA-DPH) is a cationic fluorescent aromatic hydrocarbon that anchors at the lipid-water interface of membrane lipid bilayers. Its uptake into porcine pulmonar...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041340114
更新日期:1988-01-01 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::Estrogens mediate gene transcription and signaling of numerous cellular processes in a variety of tissues, including the bone, breast, and endometrium, through binding and activation of estrogen receptors (ERs). Estrogen-mediated ER agonist activity has shown benefit in conditions related to estrogen deficiency in wom...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.24324
更新日期:2013-07-01 00:00:00
abstract::To evaluate the growth-inhibitory properties of the potent multi-kinase antagonist Regorafenib (Fluoro-Sorafenib), which was synthesized as a more potent Sorafenib, a Raf inhibitor and to determine whether similar mechanisms were involved, human hepatoma cell lines were grown in the presence or absence of Regorafanib ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24148
更新日期:2013-02-01 00:00:00
abstract::We investigated gene expression profiles of vascular endothelial growth factor (VEGF) and pigment epithelium-derived factor (PEDF) in differentiated and non-differentiated retinal pigment epithelial (RPE) cells during oxidative stress. Human RPE cells were grown in culture on laminin-coated flasks to obtain differenti...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10026
更新日期:2001-12-01 00:00:00
abstract::Rex1 (zfp42) was identified by our laboratory because of its reduced expression in F9 teratocarcinoma stem cells after retinoic acid (RA) treatment. The Rex1 (Zfp42) gene is currently widely used as a marker of embryonic stem cells. We compared the transcriptional regulation of the human Rex1 gene in NTera-2 (NT-2) hu...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22071
更新日期:2010-07-01 00:00:00
abstract::Cultured preadipose 3T3 cells undergo a process of differentiation in which they convert to adipose cells. Growth hormone promotes this conversion. Since 3T3 sublines vary in their susceptibility to adipose conversion, it was of interest to examine the properties of the growth hormone receptors in relation to that sus...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041150312
更新日期:1983-06-01 00:00:00
abstract::Tumor ischemia participates in angiogenesis and cancer progression through cellular responses to hypoxia and nutrient deprivation. However, the contribution of amino acids limitation to this process remains poorly understood. Using serum-free cell culture conditions, we tested the impact of L-glutamine deprivation on ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21044
更新日期:2007-08-01 00:00:00
abstract::Studies were conducted to explore hormonal and nutritional factors that might be involved in the regulation of retinol-binding protein (RBP) synthesis and secretion by the liver. The studies employed primary cultures of hepatocytes from normal rats. When cells were cultured in Dulbecco's modified Eagle's medium alone,...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041300103
更新日期:1987-01-01 00:00:00