Abstract:
:The extent to which autolytic microbial enzymes are involved in the fate of microorganisms ingested by phagocytes has not been determined. It is known, however, that activation of degradative enzymes occurs during certain microbicidal events. We examined the possible role of the pneumococcal autolytic enzyme (an N-acetylmuramyl-L-alanine amidase) in the loss of viability and degradation of pneumococci during phagocytosis by rabbit polymorphonuclear leukocytes. Three bacterial systems were compared: (a) wild type pneumococci with an active autolytic system; (b) wild type bacteria grown under conditions that block the endogenous autolytic activity and (c) a mutant strain defective in the major autolytic enzyme of this bacterium. No differences could be detected between the autolysis-positive and negative bacteria in the rate of killing and in the fate of macromolecular cell constituents during ingestion by rabbit peritoneal polymorphonuclear leukocytes.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Tomasz A,Beckerdite S,McDonnell M,Elsbach Pdoi
10.1002/jcp.1040920203subject
Has Abstractpub_date
1977-08-01 00:00:00pages
155-60issue
2eissn
0021-9541issn
1097-4652journal_volume
92pub_type
杂志文章abstract::Adenosine is an ubiquitous nucleoside present in all body cells. It is released from metabolically active or stressed cells and subsequently acts as a regulatory molecule through binding to specific A1, A2A, A2B and A3 cell surface receptors. The synthesis of agonists and antagonists to the adenosine receptors and the...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/1097-4652(200101)186:1<19::AID-JCP1011>3.0
更新日期:2001-01-01 00:00:00
abstract::To determine if Chinese Hamster Ovary (CHO) cells in culture are able to metabolize steroids, CHO cells were incubated in defined medium with [14C]pregnenolone. As shown, [14C]pregnenolone is metabolized to progesterone and other delta 53 beta steroids; this steroidogenic response is appreciably enhanced upon exposure...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041080103
更新日期:1981-07-01 00:00:00
abstract::A new system for studying growth of normal human mammary epithelial cells in an in vivo environment using athymic nude mice is described. Human mammary epithelial cells dissociated from reduction mammoplasty specimens were embedded within collagen gels and subsequently transplanted subcutaneously into nude mice. Histo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041630107
更新日期:1995-04-01 00:00:00
abstract::Primary astroglial cultures were used to compare the relationships to cell cycling of dolichol-linked glycoprotein synthesis, and of availability of mevalonate, the precursor of dolichol and other isoprenoid lipids. With shift-up to 10% serum (time 0) after 48 h of serum depletion, the proportion of cells in S phase (...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041490215
更新日期:1991-11-01 00:00:00
abstract::Cell division in fertilized sea urchin eggs was reversibly inhibited when the ketoaldehyde phenyl glyoxal (PG) at a concentration of 0.1 mM was added to eggs for ten minutes prior to the formation of the mitotic spindle. We investigated whether inhibition of mitosis was due to PG binding to the cell surface (as previo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041000119
更新日期:1979-07-01 00:00:00
abstract::We have characterized the physiological and biochemical properties of the Na(+)/K(+) pump and its molecular expression in L8 rat muscle cells. Pump properties were measured by [(3)H]ouabain binding and (86)Rb uptake. Scatchard plot analysis of specific ouabain binding indicated the presence of a single family of bindi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1089
更新日期:2001-06-01 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::Multicolor immunostaining analysis is often a desirable tool in cell biology for most researchers. Nonetheless, this is not an easy task and often not affordable by many laboratories as it might require expensive instrumentation and sophisticated analysis software. Here, we describe a simple protocol for performing se...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24506
更新日期:2014-06-01 00:00:00
abstract::Subcellular localization of the large multicatalytic protease complexes called proteasomes, which have been found in soluble fractions of various cells, was examined by biochemical, immunological, and immunohistological methods. Rat liver nuclei, purified by two different procedures, showed high activities for degradi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041390107
更新日期:1989-04-01 00:00:00
abstract::The purpose of this study was to characterize the direct effects of uncarboxylated osteocalcin (ucOCN) on vascular cell biology in vitro, to assess its potential function in pathophysiological conditions such as atherosclerosis. Human aortic endothelial cells (HAECs) and smooth muscle cells (HASMCs) were treated with ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28707
更新日期:2019-11-01 00:00:00
abstract::We determined whether the multi-kinase inhibitor sorafenib or its derivative regorafenib interacted with phosphodiesterase 5 (PDE5) inhibitors such as Viagra (sildenafil) to kill tumor cells. PDE5 and PDGFRα/β were over-expressed in liver tumors compared to normal liver tissue. In multiple cell types in vitro sorafeni...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24961
更新日期:2015-09-01 00:00:00
abstract::Endometriosis is a chronic gynecological inflammatory disorder in which immune system dysregulation is thought to play a role in its initiation and progression. Due to altered sex steroid receptor concentrations and other signaling defects, eutopic endometriotic tissues have an attenuated response to progesterone. Thi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27360
更新日期:2019-05-01 00:00:00
abstract::Neuronal activity-dependent gene transcription is a key feature of long-lasting synaptic strengthening associated with learning and memory, as well as activity-dependent neuroprotection. To comprehensively determine the molecular alterations, we carried out genome-wide microarray analysis in cultured rat cortical neur...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21008
更新日期:2007-07-01 00:00:00
abstract::Cover: The cover image, by Michaela R. Reagan et al., is based on the Perspective A Perspective on Malignancy in the Marrow, DOI 10.1002/jcp.25860. ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25563
更新日期:2017-12-01 00:00:00
abstract::High potassium concentrations altered the morphology and the ability to grow in soft agar in 6m2 cells, a clone of rat kidney cells infected with a temperature-sensitive mutant of Moloney sarcoma virus. Approximately 60% of cells exhibited normal morphology in the presence of 94.8 mM potassium in isotonic medium at th...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041250213
更新日期:1985-11-01 00:00:00
abstract::Mitochondrial transcription factor A (TFAM) is responsible for stability, maintenance, and transcriptional control of mitochondrial DNA (mtDNA). We have studied the expression and distribution of TFAM in the gametes and preimplantation embryos of the domestic pig (Sus scrofa). We hypothesized that TFAM is not present ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21528
更新日期:2008-11-01 00:00:00
abstract::Pain can vary over the estrous cycle as a result of changes in estradiol concentration but the mechanism causing this variation is unclear. Because the thalamus is important in pain control, gene expression in the lateral thalamus (ventral posteromedial, ventral posterolateral, reticular thalamic nuclei) was screened ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25198
更新日期:2016-05-01 00:00:00
abstract::The purpose of this study was to evaluate the anti-head and neck squamous cell carcinoma (anti-HNSCC) cell activity by C6 ceramide and multikinase inhibitor PKC412. Experiments were performed on HNSCC cell lines (SQ20B and SCC-9) and primary human oral carcinoma cells. Results showed that PKC412 inhibited HNSCC cell p...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26831
更新日期:2018-12-01 00:00:00
abstract::Established RAW264.7 cell lines for osteoclastic differentiation has been widely engaged in bone homeostasis research, however, the efficacy of RANKL independently stimulating has rarely been defined, because protocols were usually developed and modified by various laboratories. Otherwise, problematic issues are also ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27852
更新日期:2019-07-01 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::The transmembrane potential (Vm) of vascular endothelial cells (EC) is an important property that may be involved in intra- and intercellular signal transduction for various vascular functions. In this study, Vm of intact aortic and vena caval EC from hamsters were measured using conventional microelectrodes. Vascular...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041560314
更新日期:1993-09-01 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
abstract::Cancer stem cells (CSCs), also called Tumor Initiating Cells (TICs), can be defined as cancer cells that are present within solid tumors or hematological cancers, which have characteristics associated with normal stem cells, but which can give rise to all cell types found in a particular cancer sample. CSCs, therefore...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.25796
更新日期:2017-10-01 00:00:00
abstract::Fibroblast growth factor-2 (FGF-2) stimulates periodontal regeneration by a broad spectrum of effects on periodontal ligament (PDL) cells, such as proliferation, migration, and production of extracellular matrix. A critical factor in the success of periodontal regeneration is the rapid resolution of inflammatory respo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27469
更新日期:2019-05-01 00:00:00
abstract::The specific activity of a peroxisomal enzyme, lactate oxidase, and of pyruvate kinase and lactate dehydrogenase, which are not peroxisomal, increased rapidly when shaken cultures of Tetrahymena were transferred to conditions of oxygen restriction and supplemented with glucose. Two other peroxisomal enzymes, catalase ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040850106
更新日期:1975-02-01 00:00:00
abstract::Kinetic studies of binding and internalization of 125I-platelet-derived growth factor (PDGF) demonstrate that up to 15% of membrane-associated radioactivity is internalized within 2 minutes after warming to 37 degrees C in a variety of cell types. The T 1/2 for internalization is approximately 20 minutes. The T 1/2 fo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041210202
更新日期:1984-11-01 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::In this present study, Oreochromis mossambicus tilapia were transferred to cold water at 12°C for various time intervals (1, 4, 8, 24, and 48 hr) and its innate immune response was analyzed by studying cellular and humoral parameters. In vivo, alternative complement pathway activity in blood plasma was rapidly increas...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28270
更新日期:2019-02-11 00:00:00
abstract::Reduced sperm motility (asthenospermia) and resulting infertility arise from deletion of the Plasma Membrane Ca2+ -ATPase 4 (Pmca4) gene which encodes the highly conserved Ca2+ efflux pump, PMCA4. This is the major Ca2+ clearance protein in murine sperm. Since the mechanism underlying asthenospermia in PMCA4's absence...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25882
更新日期:2018-01-01 00:00:00
abstract::Tumor cells overcome anti-tumor responses in part through immunosuppressive mechanisms. There are several immune modulatory mechanisms. Among them, adenosine is an important factor which is generated by both cancer and immune cells in tumor microenvironment to suppress anti-tumor responses. Two cell surface expressed ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.25873
更新日期:2018-03-01 00:00:00