Abstract:
:Brain cathepsin D, purified by affinity chromatography on Sepharose pepstatin columns, was incubated with synthetic peptides corresponding to the susceptible regions of the myelin basic protein encompassing the two Phe-Phe bonds. One peptide, Leu-Gly-Arg-Phe-Phe-Gly-Gly, was cleaved by cathepsin D at the Phe-Phe bond while another, Val-His-Phe-Phe-Lys-Asn-Gly, was resistant to cleavage. To determine if this was a result of His flanking the Phe-Phe bond, or chain length on the N-terminal side, two decapeptides were synthesized differing only in the presence or absence of His adjacent to Phe. The results show that both of the decapapetides were cleaved by cathepsin D at the Phe-Phe linkages. In addition, prolonged incubation led to release of N-terminal Lys, indicating an additional cleavage at the Phe-Lys bond. In contrast to the limited cleavage by cathepsin D, pepsin split all four peptides. These results support earlier work on the limited proteolysis of basic protein at the Phe-Phe bond and suggest additional sites upon prolonged exposure. Such peptides may have utility as alternative substrates for basic protein or as models for subsequent synthesis of possible inhibitors of the enzyme.
journal_name
J Neurosci Resjournal_title
Journal of neuroscience researchauthors
Marks N,Benuck M,Hashim Gdoi
10.1002/jnr.490050306subject
Has Abstractpub_date
1980-01-01 00:00:00pages
217-23issue
3eissn
0360-4012issn
1097-4547journal_volume
5pub_type
杂志文章abstract::The ErbB family, ErbB1 (also known as the epidermal growth factor receptor EGFR), ErbB2, ErbB3, and ErbB4 comprise a group of receptor tyrosine kinases that interact with ligands from the epidermal growth factor (EGF) superfamily, subsequently dimerize, catalytically activate each other by cross-phosphorylation, and t...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20381
更新日期:2005-03-01 00:00:00
abstract::Oxidative mechanisms of injury are important in many neurological disorders. Developing oligodendrocytes (pre-OLs) are particularly sensitive to oxidative stress-mediated injury. We previously demonstrated a novel function of phylloquinone (vitamin K(1)) and menaquinone 4 (MK-4; a major form of vitamin K2) in protecti...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22029
更新日期:2009-07-01 00:00:00
abstract::Highly malignant neuroblastoma tumors generally have defects in differentiation and apoptotic pathways. For a better understanding of these events, we use a murine neuroblastoma cell line (NBP2) that terminally differentiates into mature neurons in response to elevated levels of cAMP. Because one of the main downstrea...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20304
更新日期:2004-11-15 00:00:00
abstract::It was previously reported that a monoclonal antibody to beta-amyloid precursor protein (mab22C11; Boehringer Mannheim, Indianapolis, IN) labels an intermediate filament-associated protein (beta APP-IFAP) in cultured human skin fibroblasts (Dooley et al.: J Neurosci Res 33:60-67, 1992). The time course of its expressi...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490380605
更新日期:1994-08-15 00:00:00
abstract::Accumulating evidence points to roles for oxidative stress, amyloid beta (Aβ), and mitochondrial dysfunction in the pathogenesis of Alzheimer's disease (AD). In neurons, the base excision repair pathway is the predominant DNA repair (BER) pathway for repairing oxidized base lesions. Apurinic/apyrimidinic endonuclease ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23565
更新日期:2015-06-01 00:00:00
abstract::The expression of gangliosides of the lactosylceramide (LC) and of the gangliotetraosylceramide (GTC) series on the surface of cells from rat embryonic cerebellar tissue was investigated by double-color indirect immunofluorescence. GD3 was assumed to be representative of LC and was detected using a specific monoclonal...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490250209
更新日期:1990-02-01 00:00:00
abstract::The effects of hyposmotic conditions on taurine uptake and release were studied in mice cultured cerebellar granule cells. The effect of DIDS (4,4'-diisothiocyanatostilbene-2,2'-disulfonate) and of the divalent cations Mg++ and Mn++ on the hyposmolarity-induced changes in these parameters was investigated. Mg++ (20 mM...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490300409
更新日期:1991-12-01 00:00:00
abstract::Thirty-day readmission rates has been increasingly used by clinicians, hospital administrators, and policy makers as a metric for the quality of care. However, the 30-day readmission rates may be affected by other factors intrinsic to the patient and may not be a good measure of the quality of care provided by the hos...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.24398
更新日期:2020-01-01 00:00:00
abstract::Currently, presymtomatic hematopoietic stem and progenitor cell transplantation (HSPCT) is the only therapeutic modality that alleviates Krabbe's disease (KD)-induced central nervous system damage. However, all HSPCT-treated patients exhibit severe deterioration in peripheral nervous system function characterized by m...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23847
更新日期:2016-11-01 00:00:00
abstract::Muscarinic cholinergic receptors of the M5 subtype are expressed by dopamine-containing neurons of the ventral tegmentum. These M5 receptors modulate the activity of midbrain dopaminergic neurons, which play an important role in mediating reinforcing properties of abused psychostimulants like cocaine. The potential ro...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10728
更新日期:2003-10-01 00:00:00
abstract::Injury to the central nervous system (CNS) either from trauma or due to demyelinating/degenerating diseases results in a typical response of astrocytes, termed astrogliosis. This reaction is characterized by astrocyte proliferation, extensive hypertrophy of nuclei, cell body, and cytoplasmic processes and an increase ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490380403
更新日期:1994-07-01 00:00:00
abstract::In cultured Schwann cells, single-channel and whole-cell K+ currents can be activated by depolarizing the membrane to values more negative than -50 mV. In elevated extracellular K+ concentration ([K+]o), however, single-channel activity and whole-cell currents could be recorded at more negative potentials. Thus, the t...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490280208
更新日期:1991-02-01 00:00:00
abstract::Glial cell line-derived neurotrophic factor (GDNF) has been shown to be a preferentially selective neurotrophic factor for dopamine (DA) neurons. In the present study, we have examined the distribution of GDNF mRNA expression in several major DA-containing cell body and terminal areas and the regulation of GDNF mRNA e...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19980901)53:5<593::AID-JNR
更新日期:1998-09-01 00:00:00
abstract::This experiment was directed toward determining the relative effectiveness of discrete and diffuse pain stimuli in influencing perception and behavior. Shocks to the footpads were used to activate the discrete pain pathways and shocks to the upper canine teeth to activate the diffuse pain pathways. In the first phase ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490020405
更新日期:1976-01-01 00:00:00
abstract::Mouse sciatic nerves were transected and 3 hr to 16 days later proximal segments were removed and homogenized. Supernatants of these segments or of normal sciatic nerves were added to Schwann cells maintained in Dulbecco's modified Eagle's medium (DMEM) + 15% fetal calf serum (FCS). After 6 days, Schwann cells were so...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490370508
更新日期:1994-04-01 00:00:00
abstract::Convergent lines of evidence have recently highlighted β3-adrenoreceptors (ARs) as a potentially critical target in the regulation of nervous and behavioral functions, including memory consolidation, anxiety, and depression. Nevertheless, the role of β3-ARs in the cerebellum has been never investigated. To address thi...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24712
更新日期:2020-11-01 00:00:00
abstract::Glutamate-induced neurotoxicity consequent to N-methyl-D-aspartic acid (NMDA) and 2-amino-3-(3-hydroxy-5-methyl-isoxazol-4-yl) propionic acid (AMPA) receptor activation underlies the pathogenesis of a wide range of central nervous system disorders, including brain ischemia. Prevention of ischemia/reperfusion (I/R)-ind...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22151
更新日期:2009-12-01 00:00:00
abstract::The contribution of glucose carbon to the biosynthesis of cholesterol and phospholipids in distinct brain regions was studied quantitatively in the adult male rat. Rates of flow of glucose carbon into the lipids in vivo were calculated from two measurements: the curve representing the decrease in plasma 14C-glucose wi...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490060505
更新日期:1981-01-01 00:00:00
abstract::Neonatal hypoxia-ischemia (HI) is a common occurrence in preterm and low-birth-weight infants, and the incidence of low-birth-weight and preterm births is increasing. Characterization of brain injury after HI is of critical importance in developing new treatments that more accurately target the injury. After severe HI...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23224
更新日期:2013-09-01 00:00:00
abstract::We investigated the role of kainate (KA) receptor activation and desensitization in inducing the increase in the intracellular free Ca(2+) concentration ([Ca(2+)](i)) in individual cultured rat hippocampal neurons. The rat hippocampal neurons in the cultures were shown to express kainate receptor subunits, KA2 and Glu...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.1164
更新日期:2001-09-01 00:00:00
abstract::We investigated whether a learning impairment after a controlled cortical impact (CCI) injury was associated with alterations in molecules involved in synaptic plasticity and learning and memory. Adult male rats with moderate CCI to the left parietal cortex, tested in a Morris water maze (MWM) beginning at postinjury ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21893
更新日期:2009-02-15 00:00:00
abstract::Oligodendrocytes generate and maintain myelin, which is essential for axonal function and protection of the mammalian central nervous system. To advance our molecular understanding of differentiation by these cells, we screened libraries of pharmacologically active compounds and identified inducers of differentiation ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22434
更新日期:2010-09-01 00:00:00
abstract::The midbrain central gray (periaqueductal gray; PAG) mediates defensive behaviors and is implicated in the rewarding effects of opiate drugs. Projections from the PAG to the ventral tegmental area (VTA) suggest that this region might also regulate behaviors involving motivation and cognition. However, studies have not...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22265
更新日期:2010-04-01 00:00:00
abstract::Monoclonal antibody J1-31 (MAb J1-31, isotype IgG 2b) was raised against crude homogenate of brain tissue from a multiple sclerosis (MS) patient (autopsy sample; Malhotra et al.: Microbios Letters 26:151-157, 1984). In human brain, MAb J1-31 recognizes an intracellular protein antigen (J1-31 antigen), which bands at a...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490220106
更新日期:1989-01-01 00:00:00
abstract::The mechanisms by which polyglutamine expansion causes common features of neuronal death remain unclear. Here we describe an approach for delivering polyglutamine expansions directly into cultured sympathetic neurons. Glutamine (Q) residues (n = 10, 22, 30) were conjugated with a peptide possessing translocation prope...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20461
更新日期:2005-05-15 00:00:00
abstract::C6 cells were adapted to proliferate in defined culture medium to allow the study of long-term effects of serum-free growth conditions on their phenotypic antigen expression and production of neurite promoting factors (NPFs). Cultures were grown in either Ham's F-12 or supplemented Opti-MEM-I containing 15% heat-inact...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490410310
更新日期:1995-06-15 00:00:00
abstract::Relationships among different intensities of electroshock treatment (EST), EEG-recordable primary after discharge (PAD), and beta-adrenergic binding in various brain regions were investigated in adult rats. Different intensities of EST (1-2, 6-8, 20-30 mamp) were applied through ear-clip electrodes for 7 consecutive d...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490070306
更新日期:1982-01-01 00:00:00
abstract::A low concentration of transition metal ions Co2+ and Ni2+ increases the inward current density in neurons from the land snail Helix aspersa. The currents were measured using a single electrode voltage-clamp/internal perfusion method under conditions in which the external Na+ was replaced by Tris+, the predominant ext...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490280411
更新日期:1991-04-01 00:00:00
abstract::The 14-3-3 proteins exist predominantly in the brain and may play regulatory roles in cellular processes of growth, differentiation, survival, and apoptosis. The biological functions, however, of the various 14-3-3 isoforms (beta, epsilon, eta, gamma, and zeta) in the brain remain unclear. We have reported previously ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20323
更新日期:2005-01-01 00:00:00
abstract::Neuroepithelial b2T cells were derived from the hindbrain and the spinal cord of mouse transgenic embryos, which expressed SV40 T antigen under the control of a Hoxb2 enhancer. Strikingly, b2T cell lines of either origin exhibit a very similar gene expression pattern, including markers of the hindbrain and the spinal ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10716
更新日期:2003-09-15 00:00:00