Abstract:
:Human lymphocytes were equilibrated for 48 hours at 5-6 mM K+ ex over a range of temperatures between 0 and 37 degrees C, and at 5 degrees C over a range of external K+ levels between 0 and 32 mM. Cell K+ and Na+ contents are normal between 37 and 10 decrees. Below 10 degrees there is a critical thermal transition in ion content centering around 3 degrees C. This and the steep sigmoidal isotherms of K+ and Na+ at 5 degrees C confirm the cooperative nature of ion exchange. At 0 degrees, cell K+ is maintained at a concentration that is seven to eight times that of the external medium. Isotopic K+ influx shows smaller, rapidly-exchanging, and larger, slowly-exchanging fractions. The latter, which correspond to the saturable, sigmoidal components of cell K+, are slowed by decreasing temperature. Although there is a critical temperature transition of K+-Na+ exchange, there is no corresponding transition for isotopic K+ exchange, which has an activation energy of 11.6 kcal/mole. The combined ion content and flux data are readily understood by reference to two major concepts of the association-induction hypothesis: that of rapid solute exclusion from cell water existing in a state of polarized multilayers, and that of solute accumulation limited by adsorption onto and desorption from fixed anionic sites that interact with one another in a critical, cooperative fashion.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Negendank W,Shaller Cdoi
10.1002/jcp.1041030113subject
Has Abstractpub_date
1980-04-01 00:00:00pages
87-95issue
1eissn
0021-9541issn
1097-4652journal_volume
103pub_type
杂志文章abstract::Estrogen-responsive genes often have an estrogen response element (ERE) positioned next to activator protein-1 (AP-1) binding sites. Considering that the interaction between ERE and AP-1 elements has been described for the modulation of bone-specific genes, we investigated the 17-beta-estradiol responsiveness and the ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21379
更新日期:2008-07-01 00:00:00
abstract::Methionine dependence is a metabolic defect found thus far only in transformed and malignant cells. The defect is manifested as the inability of cells to grow in media in which methionine (Met) is replaced by its immediate precursor homocysteine (Hcy). We have termed this Met- Hcy+ media. We demonstrate here that meth...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041190106
更新日期:1984-04-01 00:00:00
abstract::Cultures of HeLa cells, strains S3G (HeLa65) and S3K (HeLa71) were grown in plastic dishes until firmly attached and were then treated with sonic dispersions of Rosenthal's phospholipase inhibitor. A rapid increase in alkaline phosphatase activity occurred following this treatment in the S3G strain (low inducible alka...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040920111
更新日期:1977-07-01 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::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::There is strong evidence that thyroid hormones through triiodothyronine (T3) regulate Sertoli cell proliferation and differentiation in the neonatal testis. However, the mechanism(s) by which they are able to control Sertoli cell proliferation is unclear. In the present study in vivo approaches (PTU-induced neonatal h...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20716
更新日期:2006-10-01 00:00:00
abstract::The clonal hematopoiesis when occurring without hematologic abnormalities is defined as clonal hematopoiesis of indeterminate potential (CHIP). Aging causes accumulation of somatic mutations, and hematopoietic stem cells (HSCs) can develop clonal expansion of different lineages by these mutations. CHIP has a correlati...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.27752
更新日期:2019-06-01 00:00:00
abstract::Oligodendrocyte precursor cells (OPCs) are considered as the main cell source for myelination in the central nervous system. Following demyelination, proliferation, migration, and differentiation capability of endogenous OPCs remarkably increase leading to remyelination in damaged areas. Despite the beneficial impacts...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.29195
更新日期:2020-03-01 00:00:00
abstract::Alpha-2-glycoprotein 1, zinc-binding (AZGP1), known as zinc-alpha-2-glycoprotein (ZAG), is a multifunctional secretory glycoprotein and relevant to cancer metastasis. Little is known regarding the underlying mechanisms of AZGP1 in prostate cancer (PCa). In the present study, we report that AZGP1 is an androgen-respons...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28366
更新日期:2019-08-01 00:00:00
abstract::The regulation of hexose transport under glucose-starvation conditions was studied in cultured human skin fibroblasts. Glucose starvation enhanced the transport of 2-DG and 3-0-methyl-D-glucose (3-OMG) but not of L-glucose. Glucose-starvation enhanced transport was inhibited by cytochalasin B (10 microM). The starvati...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041120309
更新日期:1982-09-01 00:00:00
abstract::The effects of adenosine and two analogs, L-phenylisopropyladenosine (L-PIA) and 5'-N-ethylcarboxamidoadenosine (NECA), on cAMP production and on platelet-derived growth factor (PDGF)-stimulated initiation of DNA synthesis in growth-arrested cultures of rat arterial smooth muscle cells (SMC) were studied. The intracel...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041240314
更新日期:1985-09-01 00:00:00
abstract::Previous studies from our laboratory have shown that Chinese hamster V79 cells mutated to high level resistance to amphotericin B have a lower cellular level of cholesterol, the target molecule for the polyene antibiotic. Two amphotericin B-resistant (AMBR) mutants were each hybridized to their parental amphotericin B...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041060106
更新日期:1981-01-01 00:00:00
abstract::To construct a long noncoding RNA (lncRNA)-microRNA (miRNA)-messenger RNA (mRNA) regulatory network related to epithelial ovarian cancer (EOC) cisplatin-resistant, differentially expressed genes (DEGs), differentially expressed lncRNAs (DELs), and differentially expressed miRNAs (DEMs) between MDAH and TOV-112D cells ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28587
更新日期:2019-11-01 00:00:00
abstract::Priapism, a prolonged penile erection in the absence of sexual arousal, is common among patients with sickle cell disease (SCD). Hypogonadism is also common in patients with SCD. While the administration of exogenous testosterone reverses hypogonadism, it is contraceptive. We hypothesized that the stimulation of endog...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.30075
更新日期:2020-09-24 00:00:00
abstract::The release of vasodilating substances from the vascular endothelium has been postulated to depend on a rise in the level of intracellular free calcium (Cai++). We measured Cai++ in intact monolayers of calf endothelial cells, grown in culture, that were loaded with the fluorescent calcium indicator quin 2. Fluorescen...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041260312
更新日期:1986-03-01 00:00:00
abstract::Stimulation of amiloride-sensitive sodium (Na+) influx and the subsequent activation of NA+, K+-ATPase by serum or growth factors have been implicated as early events leading to initiation of cell proliferation. We recently demonstrated that amiloride inhibits thrombin-initiated DNA synthesis not by inhibiting an earl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041200305
更新日期:1984-09-01 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::Nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4) is a subtype of the NOX family, which is mainly expressed in the pulmonary vasculature and pulmonary endothelial cells in the respiratory system. NOX4 has unique characteristics, and is a constitutively active enzyme that primarily produces hydrogen peroxide...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.30005
更新日期:2021-03-01 00:00:00
abstract::Cdk9, a member of the cyclin-dependent kinase family, is the catalytic subunit of P-TEFb, a protein kinase complex that stimulates transcriptional elongation. Cdk9, complexed with its regulatory partner cyclin T1, serves as the cellular mediator of the transactivation function of the HIV Tat protein. There are two kno...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20224
更新日期:2005-04-01 00:00:00
abstract::The effects of src oncogene expression on epidermal growth factor (EGF) receptors have been investigated in mouse 3T3 and rat-1 fibroblasts. Transformation of both cell types with src resulted in marked reductions in cellular EGF receptor levels, as assayed by either 125I-EGF binding or immunoprecipitation of receptor...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041310318
更新日期:1987-06-01 00:00:00
abstract::Studies on the receptor specificity and dynamics involved in fibroblast phagocytosis of latex beads revealed the following: 1) Ligands other than fibronectin such as concanavalin A (ConA) and serum spreading factor, when coated on latex beads, were found to promote phagocytosis of the beads. This indicates that fibrob...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041240211
更新日期:1985-08-01 00:00:00
abstract::BHK fibroblasts can be growth arrested by incubation in low serum (0.1%) medium. Growth is initiated by incubating cells in high serum (10%) medium. We have found that if the quiescent cells in low serum medium are incubated with insulin, the G0 to S transit time is decreased by two to six hours when serum (10%) is ad...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041050318
更新日期:1980-12-01 00:00:00
abstract::There is compelling in vitro and in vivo evidence to implicate mast cells in the development of fibrosis. However, an important question remains as to the mechanisms by which mast cells mediate fibrosis. Recent evidence from our laboratory (Gruber et al., 1997, J. Immunol. , 158:2310-2317) has revealed that tryptase, ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199911)181:2<312::AID-JCP1
更新日期:1999-11-01 00:00:00
abstract::The S100 protein family comprises more than 20 members of small calcium binding proteins operating as Ca2 +-activated switches that interact and modulate the activity of a large number of targets. S100A1 and S100B, two members of this family, have been recently associated with the differentiation status of human artic...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.25720
更新日期:2017-08-01 00:00:00
abstract::Lung cancer is the leading cause of cancer death worldwide. Although diagnostic methods and targeted drugs have been rapidly developed in recent years, the underlying molecular mechanisms in the pathogenesis of lung cancer remain enigmatic. The N6-methyladenosine (m6 A) modification is the most common modification of ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.30136
更新日期:2020-11-01 00:00:00
abstract::The role of the plasma membrane potential (delta psi p) in the commitment to differentiation of murine erythroleukemia (MEL) cells has been studied by analyzing the ionic basis and the time course of this potential in the absence or the presence of different types of inducers. delta psi p was determined by measuring t...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041320302
更新日期:1987-09-01 00:00:00
abstract::The epidermal growth factor (EGF) receptor interacts with structural elements of A431 cells and remains associated with the cytoskeleton following extraction with nonionic detergents. Extraction of cells with 0.15% Triton X-100 resulted in detection of only approximately 40% of the EGF binding sites on the cytoskeleto...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041460109
更新日期:1991-01-01 00:00:00
abstract::C6 glioma cells possess beta adrenergic receptors coupled with adenylate cyclase which can be irreversibly blocked by bromoacetylaminomethylpindolol (Br-AAM-pindolol), a beta adrenergic antagonist. With 1 microM Br-AAM-pindolol, more than 80% of beta adrenergic receptors, labeled by (3H)-dihydroalprenolol [3H)-DHA), w...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041210318
更新日期:1984-12-01 00:00:00
abstract::Ack1 (also known as ACK, TNK2, or activated Cdc42 kinase) is a structurally unique non-receptor tyrosine kinase that is expressed in diverse cell types. It integrates signals from plethora of ligand-activated receptor tyrosine kinases (RTKs), for example, MERTK, EGFR, HER2, PDGFR and insulin receptor to initiate intra...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.22162
更新日期:2010-08-01 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