AJAP1 affects behavioral changes and GABABR1 level in epileptic mice.

Abstract:

:Adherens junction-associated protein-1 (AJAP1), also called SHREW1, was first discovered as a novel component of adherens junctions in 2004. In later studies, AJAP1 was found to suppress invasion and predict recurrence of some tumors. Apart from its function as a putative tumor suppressor, AJAP1 is still poorly understood. Schwenk et al. recently found that AJAP1 was tightly associated with the γ-Aminobutyric acid type B receptor subunit 1(GABABR1). It is well known that GABABR plays a vital role in epilepsy as an inhibitory transmitter receptor. Structurally adjacent, possibly functionally interacting, therefore, we hypothesize that AJAP1 participates in the onset and progression of epilepsy. We designed this experiment to investigate the expression and location of AJAP1 in temporal lobe epilepsy (TLE) patients and kainic acid(KA)-induced epilepsy animal models by immunofluorescence and Western blot analyses. We overexpressed and inhibited AJAP1 through lentiviruses in KA-induced models and observed the corresponding effects on epileptic animals. Double-label immunofluorescence showed that AJAP1 was expressed mainly in neurons. Western blot analysis revealed that AJAP1 expression was downregulated in the neocortex of TLE patients and the hippocampus and neocortex of epileptic animal models. The overexpression of AJAP1 can reduce the frequency of spontaneous seizures, whereas the inhibition of AJAP1 expression can increase the incidence rate. Our study demonstrated that AJAP1 may be involved in the pathogenic process of epilepsy and may represent a novel antiepileptic target.

authors

Zhang M,Zhou X,Jiang W,Li M,Zhou R,Zhou S

doi

10.1016/j.bbrc.2020.02.036

subject

Has Abstract

pub_date

2020-04-16 00:00:00

pages

1057-1063

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(20)30302-8

journal_volume

524

pub_type

杂志文章
  • Jagged-1 juxtamembrane region: biochemical characterization and cleavage by ADAM17 (TACE) catalytic domain.

    abstract::Ectodomain shedding of membrane receptors and ligands carried out by ADAMs (A disintegrin and metalloprotease) plays a major role in several signaling pathways, including Notch. The grounds of substrate recognition, however, are poorly understood. We demonstrate that a recombinant protein corresponding to the juxtamem...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2013.02.022

    authors: Coglievina M,Guarnaccia C,Zlatev V,Pongor S,Pintar A

    更新日期:2013-03-22 00:00:00

  • Isolation and properties in culture of human adrenal capillary endothelial cells.

    abstract::The isolation of human adrenal capillary endothelial (HACE) cells without resort to fluorescence activated cell sorting is described, together with their properties in culture. HACE cells were isolated by plating collagenase digests at high dilution in the presence of endothelial cell growth supplement, followed by cl...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(91)91503-5

    authors: Fawcett J,Harris AL,Bicknell R

    更新日期:1991-01-31 00:00:00

  • Identification of small molecule compounds active against Staphylococcus aureus and Proteus mirabilis.

    abstract::Staphylococcus aureus is a human pathogen rapidly becoming a serious health problem due to ease of acquiring antibiotic resistance. To help identify potential new drug candidates effective against the pathogen, a small focused library was screened for inhibition of bacterial growth against several pathogens, including...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2018.10.189

    authors: Swietnicki W,Czarny A,Urbanska N,Drab M

    更新日期:2018-12-02 00:00:00

  • Putative P-glycoprotein expression in arsenite-resistant Leishmania donovani down-regulated by verapamil.

    abstract::Western immunoblots of whole cell lysate and crude membrane extract of an in vitro selected sodium m-arsenite-resistant L. donovani strain revealed a 230-kDa protein identified by an anti-P-glycoprotein (Pgp) antibody. Immunofluorescence microscopy, using the same antibody, detected putative Pgp on resistant parasites...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1006/bbrc.2000.2680

    authors: Kaur J,Dey CS

    更新日期:2000-05-19 00:00:00

  • Regulation of single Cl- channel conductance by insulin and tyrosine phosphatase.

    abstract::The apical membrane of distal nephron epithelium (A6) had a Ca(2+)-activated outwardly rectifying Cl- channel with single-channel conductances of 3 pS for outward current and 0.8 pS for inward current. The single-channel conductance for inward current was dependent on cytosolic Ca2+ concentration. Insulin increased th...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1006/bbrc.1996.0025

    authors: Shintani Y,Marunaka Y

    更新日期:1996-01-05 00:00:00

  • TRAF-dependent association of protein kinase Tpl2/COT1 (MAP3K8) with CD40.

    abstract::Signaling by TNF-family receptor CD40 involves TRAF-family adaptor proteins, leading to activation of protein kinases that induce NFkappaB-family transcription factors. We report here that mitogen activated protein kinase kinase kinase-8 (MAP3K8), Tpl2/COT1, is recruited to the CD40 complex via a mechanism dependent o...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2004.12.155

    authors: Chan H,Reed JC

    更新日期:2005-03-04 00:00:00

  • A fluorescence-based rapid screening assay for cytotoxic compounds.

    abstract::A simple fluorescence-based assay was developed for the rapid screening of potential cytotoxic compounds generated by combinatorial chemistry. The assay is based on detection of nuclear green fluorescent protein (GFP) staining of a human cervical cancer cell line (HeLa) carrying an integrated histone H2B-GFP fusion ge...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2004.10.196

    authors: Montoya J,Varela-Ramirez A,Estrada A,Martinez LE,Garza K,Aguilera RJ

    更新日期:2004-12-24 00:00:00

  • Endotoxin protects the gastric mucosa against ulcerogenic stimuli.

    abstract::It is well-documented that large amounts of endotoxin produce hemorrhagic mucosal lesions in the stomach. To determine whether endotoxin, when injected at small doses, similarly exerts ulcerogenic actions, endotoxin (0.4-40 micrograms/kg) was injected into 24 hr-fasted rats. These small doses of endotoxin did not affe...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1006/bbrc.1993.2622

    authors: Tsuji K,Uehara A,Santos SB,Namiki M

    更新日期:1993-12-30 00:00:00

  • Arachidonic acid and related methyl ester mediate protein kinase C activation in intact platelets through the arachidonate metabolism pathways.

    abstract::Unlike unsaturated fatty acids, which almost fully activated purified brain protein kinase C in a phosphatidylserine- and Ca2(+)-free reaction, related methyl esters were poorly active in vitro. In contrast, methyl arachidonate was revealed to be as potent as arachidonic acid in activating protein kinase C in intact p...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(90)91983-y

    authors: Fan XT,Huang XP,Da Silva C,Castagna M

    更新日期:1990-06-29 00:00:00

  • Increased uncoupling protein2 mRNA in white adipose tissue, and decrease in leptin, visceral fat, blood glucose, and cholesterol in KK-Ay mice fed with eicosapentaenoic and docosahexaenoic acids in addition to linolenic acid.

    abstract::The effects of n-3 polyunsaturated fatty acids (n-3PUFA) on obesity and diabetes were examined using KK-Ay mice fed with perilla oil (P), soybean oil (S), or lard (L), and those containing 30% fish oil (PF, SF, or LF), containing eicosapentaenoic acid (EPA = 9.9%) and docosahexaenoic acid (DHA = 18.0%). Perilla oil co...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1006/bbrc.1999.0733

    authors: Hun CS,Hasegawa K,Kawabata T,Kato M,Shimokawa T,Kagawa Y

    更新日期:1999-05-27 00:00:00

  • In vitro transcription termination activity of the Drosophila mitochondrial DNA-binding protein DmTTF.

    abstract::DmTTF is a Drosophila melanogaster mitochondrial DNA-binding protein which binds specifically to two homologous non-coding sequences located at the 3' ends of blocks of genes encoded on opposite strands. In order to test whether this protein acts as transcription termination factor, we assayed the capacity of DmTTF to...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2005.03.173

    authors: Roberti M,Fernandez-Silva P,Polosa PL,Fernandez-Vizarra E,Bruni F,Deceglie S,Montoya J,Gadaleta MN,Cantatore P

    更新日期:2005-05-27 00:00:00

  • Activation of Bak in ultrasound-induced, JNK- and p38-independent apoptosis and its inhibition by Bcl-2.

    abstract::The molecular mechanisms underlying ultrasound-induced apoptosis remain poorly understood. We have demonstrated that in Jurkat cells, the over-expression of the anti-apoptotic protein Bcl-2 inhibited ultrasound-induced apoptosis, but not necrosis. Inhibition of caspase activity also protected the cells from apoptosis,...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2006.12.055

    authors: Kinoshita M,Eguchi Y,Hynynen K

    更新日期:2007-02-09 00:00:00

  • Regulation by heme of the synthesis of cytochrome C oxidase subunits V and VII in yeast.

    abstract::The effects of heme on the synthesis of subunits V and VII of cytochrome c oxidase were examined in the heme-deficient yeast mutant, GL1. In vitro translation and immunodetection with subunit-specific antisera indicated a 50% decrease in both proteins, with RNA obtained from hemeless cells. Unsupplemented, pulse-label...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(85)91102-7

    authors: Gollub EG,Dayan J

    更新日期:1985-05-16 00:00:00

  • GTP-binding membrane proteins in activated and differentiating T cells.

    abstract::We have earlier reported changes in the GTP binding of several membrane proteins including Gs alpha and Gi alpha during thymic differentiation of T cells. Using an [alpha-32P]GTP-photoaffinity labeling technique we have studied the pattern of GTP binding proteins in activated and resting T lymphocytes and in T cells i...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(91)91790-j

    authors: Pessa-Morikawa T,Nordström T,Mustelin T,Andersson LC

    更新日期:1991-07-15 00:00:00

  • Suppression of inducible nitric oxide synthase and tumor necrosis factor-alpha expression by 4-nonylphenol in macrophages.

    abstract::4-Nonylphenol (NP) is reported to have estrogenic activity; however, its influence on cytokine production or immune system function remains unclear. In this study we investigated the effects of NP on the production of nitric oxide (NO) and tumor necrosis factor-alpha (TNF-alpha), and on the level of inducible nitric o...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/S0006-291X(02)00550-8

    authors: You HJ,Choi CY,Jeon YJ,Chung YC,Kang SK,Hahm KS,Jeong HG

    更新日期:2002-06-21 00:00:00

  • Functional studies of human GLUT5: effect of pH on substrate selection and an analysis of substrate interactions.

    abstract::The adsorption of D-fructose within the lumen of the human small intestine is thought to be mediated by the GLUT5 isoform of the human facilitative sugar transporter family. This isoform has been expressed in oocytes and shown to be capable of D-fructose transport. Some debate remains regarding the absolute substrate ...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1006/bbrc.1997.7204

    authors: Kane S,Seatter MJ,Gould GW

    更新日期:1997-09-18 00:00:00

  • Spectral evidence for non-calcium interactions of intracellular Indo-1.

    abstract::Indo-1 is widely used to measure intracellular free calcium, [Ca2+]i, by comparing the fluorescence emission at 2 or more wavelengths with the emissions, which are assumed to be known, of Indo-1 when it is fully calcium-bound and when it is fully calcium-free. Accurate quantitation requires that these "reference" valu...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(89)92139-6

    authors: Owen CS,Shuler RL

    更新日期:1989-08-30 00:00:00

  • Classifier ensembles for protein structural class prediction with varying homology.

    abstract::Structural class characterizes the overall folding type of a protein or its domain. A number of computational methods have been proposed to predict structural class based on primary sequences; however, the accuracy of these methods is strongly affected by sequence homology. This paper proposes, an ensemble classificat...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2006.07.141

    authors: Kedarisetti KD,Kurgan L,Dick S

    更新日期:2006-09-29 00:00:00

  • Preparation and partial characterization of polyclonal antibodies raised against a preselected sequence of calcium dependent lectins.

    abstract::The synthetic-peptide strategy was used to generate antibodies raised against calcium-dependent lectins of vertebrates. We demonstrate that a synthetic peptide predicted from the amino acid sequence of the carbohydrate recognition domain can induce blocking antibodies which would react with, or in close vicinity of, t...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(90)91975-x

    authors: Blanck O,Thibault V,Granier C,Van Rietschoten J,Courageot J,Miquelis R

    更新日期:1990-06-29 00:00:00

  • Binding specificity of lung surfactant protein SP-D for glucosylceramide.

    abstract::The specificities of the binding of lung surfactant protein SP-D to glycolipids were examined using 125I-labeled SP-D as a probe. When the binding study was performed on TLC plates, SP-D bound exclusively to GlcCer, whereas it failed to bind to GalCer, GM1, GM2, asialo-GM1, asialo-GM2, sulfatide, Forssman antigen, cer...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(92)91291-w

    authors: Kuroki Y,Gasa S,Ogasawara Y,Shiratori M,Makita A,Akino T

    更新日期:1992-09-16 00:00:00

  • Arabidopsis stress-inducible gene for arginine decarboxylase AtADC2 is required for accumulation of putrescine in salt tolerance.

    abstract::Arginine decarboxylase (ADC) catalyzes the first step of polyamine (PA) biosynthesis to produce putrescine (Put) from arginine (Arg). One of the 2 Arabidopsis ADC genes, AtADC2, is induced in response to salt stress causing the accumulation of free Put. To analyze the roles of stress-inducible AtADC2 gene and endogeno...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2003.11.119

    authors: Urano K,Yoshiba Y,Nanjo T,Ito T,Yamaguchi-Shinozaki K,Shinozaki K

    更新日期:2004-01-09 00:00:00

  • Interaction of p59fyn with interferon-activated Jak kinases.

    abstract::During IFN alpha stimulation, p59(fyn) associates with the Type I IFNR-associated Tyk-2 kinase in several human hematopoietic cell lines in vivo. This interaction is direct, and is mediated by the SH2 domain in p59(fyn), as shown by binding studies using glutathione-S-transferase fusion proteins and far western blots....

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1006/bbrc.1997.6741

    authors: Uddin S,Sher DA,Alsayed Y,Pons S,Colamonici OR,Fish EN,White MF,Platanias LC

    更新日期:1997-06-09 00:00:00

  • Glucose effect on the expression of 150 kDa oxygen-regulated protein in HeLa cells.

    abstract::Chaperones assist in the correct folding of newly synthesised proteins in the endoplasmic reticulum (ER) of cells, this being essential for the translocation of protein molecules to specific subcellular compartments, extracellular matrix or to biological fluids. The biosynthesis of some ER chaperones is regulated by g...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2005.09.139

    authors: Cechowska-Pasko M,Bańkowski E,Chene P

    更新日期:2005-11-25 00:00:00

  • Stk1-mediated phosphorylation stimulates the DNA-binding properties of the Staphylococcus aureus SpoVG transcriptional factor.

    abstract::The stage V sporulation protein G (SpoVG) homolog of Staphylococcus aureus is a modulator of virulence factor synthesis and antibiotic resistance in this clinically important gram-positive pathogen. Here we demonstrate that SpoVG can be phosphorylated by the staphylococcal Ser/Thr protein kinase Stk1 and that phosphor...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2016.04.044

    authors: Bischoff M,Brelle S,Minatelli S,Molle V

    更新日期:2016-05-13 00:00:00

  • Identification of polymorphic sites of the human bradykinin B2 receptor gene.

    abstract::The characterization of the genomic organization of the B2 bradykinin receptor gene enabled us to systematically search for polymorphic markers in this gene in a South German cohort (N = 179). We identified at least three polymorphic sites in each of the three exons existing: (i) in exon 1 next to the promoter region,...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1006/bbrc.1995.1801

    authors: Braun A,Kammerer S,Böhme E,Müller B,Roscher AA

    更新日期:1995-06-06 00:00:00

  • Differential modulation by N4, 2'-O-dibutyryl cytidine 3':5'-cyclic monophosphate of neutrophil activation.

    abstract::The cyclic pyrimidine nucleotide, cCMP, is an endogenous substance in mammalian cells but little is known on its functional role. We studied the effects of cCMP, its cell-permeant analogue, N4,2'-O-dibutyryl cytidine 3':5'-cyclic monophosphate (Bt2cCMP), and of butyrate on superoxide (O2-) formation and cytosolic Ca2+...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(91)90514-8

    authors: Ervens J,Seifert R

    更新日期:1991-01-15 00:00:00

  • Progressive mRNA decay establishes an mkp3 expression gradient in the chick limb bud.

    abstract::The apical ectodermal ridge (AER) controls limb outgrowth and patterning, such that its removal causes changes in mesodermal gene expression, cell death and limb truncation. Fibroblast growth factor (FGF) family members are expressed in the AER and can rescue limb bud outgrowth after AER removal. Cells localized under...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2006.10.186

    authors: Pascoal S,Andrade RP,Bajanca F,Palmeirim I

    更新日期:2007-01-05 00:00:00

  • Specific internalization of estrogen and binding to nuclear matrix in isolated uterine cells.

    abstract::Fractionation of rat uterine cells incubated at 22 degrees C with 0.2 nM [3H]-estradiol-17 beta (E2 beta) was performed to analyze the subcellular distribution of internalized hormone. The postnuclear supernatant of homogenates was resolved in Percoll density gradients into six major fractions defined by enzyme marker...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/0006-291x(84)90383-8

    authors: Pietras RJ,Szego CM

    更新日期:1984-08-30 00:00:00

  • Hyperoxia-induced ciliary loss and oxidative damage in an in vitro bovine model: the protective role of antioxidant vitamins E and C.

    abstract::Although elevated oxygen fraction is used in intensive care units around the world, pathological changes in pulmonary tissue have been shown to occur with prolonged exposure to hyperoxia. In this work a bovine bronchus culture model has been successfully used to evaluate the effects of hyperoxia on ciliated epithelium...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1016/j.bbrc.2012.10.113

    authors: Al-Shmgani HS,Moate RM,Sneyd JR,Macnaughton PD,Moody AJ

    更新日期:2012-12-14 00:00:00

  • Inhibition of protein import into mitochondria by amphiphilic cations: potential targets and mechanism of action.

    abstract::In this paper we describe for the first time the inhibitory effect of three amphiphilic cations, trifluoperazine, propranolol and dibucaine on mitochondrial protein import. The amphiphilic cations did not affect binding of mitochondrial precursor proteins to mitochondria. Import into mitoplasts was affected in a simil...

    journal_title:Biochemical and biophysical research communications

    pub_type: 杂志文章

    doi:10.1006/bbrc.1998.9590

    authors: Pavlov PF,Glaser E

    更新日期:1998-11-09 00:00:00