Abstract：
:PKZ, protein kinase containing Z-DNA binding domains, is a novel member of eIF2α kinase in fish. PKZ can be up-regulated in response to Poly I:C or heat stress, and it has a typical eIF2α kinase activity. However, the relationship between fish PKZ and apoptosis remains unclear. In the present study, effects of PKZ on apoptosis were explored. Initially, we found that PKZ and PKR were up-regulated by poly I:C in a time-dependent manner. Q-PCR analysis showed that the change of Caspase-3 mRNA was consistent with that of PKZ under the stimulation of poly I:C or transfection with PKZ siRNA in CIK cells. It suggested that PKZ might mediate the induction of apoptosis. Knockdown and overexpression assays indicated that a significant increase of apoptotic cell number was observed in the wild type PKZ (PKZ-wt) transfected PKZ-deficient cells, while mutant PKZ-K198R lost this ability. MTT also showed that overexpression of PKZ-wt in CIK cells resulted in a striking decrease of cell viability rate to about 32.5%, whereas the viability of cell with PKZ-K198R was about 88.1%. Likewise, when transfected eIF2α-wt or phosphomimetic eIF2α (S51D), CIK cells displayed higher apoptotic rate than the controls. In contrast, overexpression of phosphodeficient eIF2α (S51A) blocked induction of apoptosis. In addition, levels of eIF2α phosphorylation were significantly related to apoptosis in these CIK cells. Furthermore, when mutant eIF2α (S51A) was transiently transfected into the PKZ/PKR knockdown cells that transfected with wildtype PKZ previously, the apoptotic rates and levels of eIF2α phosphorylation were dramatically decreased. Overall, these results suggested that PKZ could facilitate apoptosis via eIF2α phosphorylation.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Wu C,Hu Y,Fan L,Wang H,Sun Z,Deng S,Liu Y,Hu Cdoi
10.1016/j.molimm.2015.11.006subject
Has Abstractpub_date
2016-01-01 00:00:00pages
13-23eissn
0161-5890issn
1872-9142pii
S0161-5890(15)30116-4journal_volume
69pub_type
杂志文章abstract：:The expression levels of three commonly used housekeeping genes, EF1-alpha, RPS20 and Beta-Actin, were examined in seven different tissues and leucocytes from non-stimulated Atlantic salmon (Salmo salar L.). The tissues analysed by quantitative real-time PCR were gill, liver, intestine, muscle, spleen, head kidney leu...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2005.07.009
更新日期：2006-03-01 00:00:00
abstract：:Bovine and equine factor D were purified to apparent homogeneity as evidenced by a single protein staining band on 7.5-17.5% SDS-PAGE slab gels under both reducing and non-reducing conditions. An apparent mol. wt of 15,000 for bovine D and 22,500 for equine D were noted after SDS-PAGE gel analysis of both reduced and ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(84)90141-x
更新日期：1984-10-01 00:00:00
abstract：:We have developed a method for use in investigating factors controlling the binding and cross-linking by bivalent haptens of immunoglobulin E (IgE) bound to receptors on rat basophilic leukemia (RBL) cells. This method employs monoclonal anti-2,4-dinitrophenyl (DNP) IgE that is labeled with fluorescein-5-isothiocyanat...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(86)90089-1
更新日期：1986-07-01 00:00:00
abstract：:The genetic complexity of the H-2D region includes haplotype disparities in apparent gene and product number. To probe the genetic basis of this complexity, the products of two independently derived mouse strains (STU and B10.SAA48) that express Dw3 antigens were compared. Serologic, fluorometric and peptide map compa...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(86)90007-6
更新日期：1986-10-01 00:00:00
abstract：:CD1 molecules are MHC-unlinked class Ib molecules consisting of classical (human CD 1a-c) and non-classical subsets (human CD1d and murine CD1). The characterization of non-classical subsets of CD1 is limited due to the lack of reagents. In this study, we have generated two new anti-mouse CD1 monoclonal antibodies, 3H...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(98)00055-8
更新日期：1998-06-01 00:00:00
abstract：:Four different proteases were screened for their capability of selectively digesting murine monoclonal IgGl to obtain active F(ab)2. For the screening, a series of five different mouse monoclonal antibodies (IgGl, k) was used, recognizing different tumor-associated antigens and currently used for radioimmunoimaging st...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(91)90088-2
更新日期：1991-01-01 00:00:00
abstract：:The pentacyclic triterpene α,β-amyrin has been previously reported as an effective compound in the treatment of several inflammatory conditions. Recent evidence indicates that α,β-amyrin displayed its effects through interaction with the cannabinoid pathway. We assessed the anti-inflammatory effects of the α,β-amyrin ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2013.01.018
更新日期：2013-07-01 00:00:00
abstract：:MHC class I molecules present short peptides, usually 8-10 amino acids in length, to CD8(+) T cells. These peptides are typically generated from full-length endogenously synthesized proteins degraded by the antigen processing machinery of the target cell. However, exogenous proteins, whether originating from intracell...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2010.10.002
更新日期：2011-01-01 00:00:00
abstract：:The antigenic structural features of alpha-lactalbumin have been investigated using a radioimmunoassay, peptide inhibition of the quantitative precipitin reaction, and by immunodiffusion analysis after chemical modification of the molecule. Antigenic activity (in rabbits) was localized to several peptic fragments and ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(82)90192-4
更新日期：1982-11-01 00:00:00
abstract：:This study analyzes the gene repertoire coding for antibodies to an evolutionary novel immunogenic carbohydrate antigen in mice. The alpha-gal epitope (Gal alpha 1-3Gal beta 1-4GlcNAc-R) is an autoantigen, abundantly expressed in wild type mice, but absent in alpha 1,3galactosyltransferase knock-out (KO) mice, where i...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(00)00064-x
更新日期：2000-06-01 00:00:00
abstract：:Dendritic cells (DCs) are recruited to inflammatory sites where they phagocytose and process antigens for subsequent presentation to the T lymphocytes in the lymphoid tissue. Several leukocyte chemoattractants and their specific receptors have been shown to induce the migration of DC. The complement protein C1q has mu...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2005.07.030
更新日期：2006-03-01 00:00:00
abstract：:The cell-surface receptor ST2L triggers cytokine release by immune cells upon exposure to its ligand IL-33. To study the effect of ST2L-dependent signaling in different cell types, we generated antagonist antibodies that bind different receptor domains. We sought to characterize their activities in vitro using both tr...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2016.05.019
更新日期：2016-07-01 00:00:00
abstract：:Bothropasin is a hemorrhagic snake venom metalloproteinase (SVMP) from Bothrops jararaca venom, the snake responsible for most bites in Southeastern Brazil. SVMPs, such as bothropasin, are involved in the main bothropic envenoming symptoms, which include hemorrhage, inflammation, necrosis and blood coagulation deficie...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2018.10.019
更新日期：2018-12-01 00:00:00
abstract：:Cardamonin, a chalcone isolated from the fruits of a local plant Alpinia rafflesiana, has demonstrated anti-inflammatory activity in cellular models of inflammation. In this report, we evaluated the ability of cardamonin to suppress both NO and PGE2 synthesis, iNOS and COX-2 expression and enzymatic activity, and key ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2006.04.025
更新日期：2007-02-01 00:00:00
abstract：:The complement system plays a central role in a number of human inflammatory diseases, and there is a significant need for development of complement-directed therapies. The discovery of an arsenal of anti-complement proteins secreted by the pathogen Staphylococcus aureus brought with it the potential for harnessing th...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2015.05.012
更新日期：2015-10-01 00:00:00
abstract：:A high affinity C5 convertase is generated when a C3 convertase deposits additional C3b molecules on and around itself thereby switching the substrate specificity of C3 convertase from C3 to C5. In the present study the role of the additional C3b molecules in influencing the regulation of classical pathway C5 converta...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2006.07.282
更新日期：2007-02-01 00:00:00
abstract：:The three-dimensional structure of the Mcg lambda-type Bence-Jones dimer crystallized in ammonium sulfate is known at 2.3-A resolution. A series of nine other human lambda-chains and two kappa-chains did not crystallize under the same conditions. After these proteins were hybridized with the Mcg light chain by the met...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(85)80001-8
更新日期：1985-02-01 00:00:00
abstract：:Whether bovine myelin basic protein (BP) and bovine spinal cord protein (SCP) cross-react at the humoral immune level was assessed with a sensitive solid-phase enzyme immunoassay. We found that a hyperimmune anti-SCP serum reacted strongly with SCP and cross-reacted nearly as well with BP. A hyperimmune anti-BP serum ...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(84)90159-7
更新日期：1984-10-01 00:00:00
abstract：:Forty-eight group A streptococcal strains of different M types were screened for binding of human radiolabeled IgG. Three of the strains bound more than 80% of the added radioactivity and one of them, an M protein type 1 strain designated AP1, was selected for further analysis. Attempts were made to solubilize the IgG...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(90)90071-7
更新日期：1990-06-01 00:00:00
abstract：:Ankylosing spondylitis (AS) is a chronic inflammatory arthritis that affects the spine and sacroiliac joints. It causes significant disability and is associated with a number of other features including peripheral arthritis, anterior uveitis, psoriasis and inflammatory bowel disease (IBD). Significant progress has bee...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2013.06.013
更新日期：2014-01-01 00:00:00
abstract：:Tumor necrosis factor-alpha (TNF) has been implicated in the pathogenesis of a variety of human diseases including septic shock, cachexia, graft-versus-host disease and several autoimmune diseases. Monoclonal antibodies directed against TNF provide an attractive mode of therapeutic intervention in these diseases. We h...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(93)90106-l
更新日期：1993-11-01 00:00:00
abstract：:The ragweed allergens Amb t 5 and Amb a 5 are among the smallest inhaled protein allergens known, containing a single, immunodominant T-cell epitope. In this study we analyzed the B-cell epitope structure of Amb t 5. The three-dimensional structures of Amb t 5 and Amb a 5 have been determined by NMR spectroscopy, prov...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(99)00054-1
更新日期：1998-06-01 00:00:00
abstract：:The cDNA coding for a hybridoma anti Shigella dysenteriae type 1 antibody (3707 E9) has been cloned, and sequenced. Binding patterns with fragments of the bacterial polysaccharide antigen had already been studied in detail. The VH sequence utilizes the VH441 gene, first identified amongst beta-(1,6)galactan-binding an...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(95)00072-m
更新日期：1995-06-01 00:00:00
abstract：:The T cell stimulatory activity of peptides is known to be associated with the cell surface stability and lifetime of the peptide-MHC (pepMHC) complex. In this report, soluble high-affinity T cell receptors (TCRs) that are specific for pepMHC complexes recognized by the mouse CD8+ clone 2C were used to monitor the cel...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/j.molimm.2006.11.016
更新日期：2007-03-01 00:00:00
abstract：:Nanomaterials are beginning to play an important role in the next generation of immunological assays and biosensors, with potential impacts both in research and clinical practice. In this brief review, we highlight two areas in which nanomaterials are already making new and important contributions in the past 5-10 yea...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2017.12.017
更新日期：2018-06-01 00:00:00
abstract：:We have previously noted that a specific amino acid sequence could form the second framework region of human, mouse and rabbit immunoglobulin light chains, suggesting that this sequence has been preserved for 80 million years. Through divergent evolution, each species has acquired a different set of framework region s...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(92)90047-2
更新日期：1992-09-01 00:00:00
abstract：:The antigenicity of Human Immunodeficiency Virus type 1 (HIV-1) matrix p18 protein was evaluated by analyzing the specificity of anti-p18 antibodies elicited either in HIV-1 infected humans, or in HIV-1 infected or immunized chimpanzees, against a panel of long and short overlapping synthetic peptides [from 12 to 46 a...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(93)90118-u
更新日期：1993-04-01 00:00:00
abstract：:Recombinant IL-2 (rIL-2) produced in prokaryotes, is widely used in lieu of native IL-2, which is secreted by T cells, to assess the functional profile of this cytokine. We provide evidence that a naturally occurring species of post-translationally modified IL-2 (moIL-2) exhibits enhanced bioactivity compared to rIL-2...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/s0161-5890(03)00102-0
更新日期：2003-09-01 00:00:00
abstract：:Secreted glycoproteins generally contain oligosaccharides of the complex type. However, several molecules have been described in which individual glycans are processed differently from one another. Folding, assembly and oligomerization could affect the maturation of certain glycans by hindering them to the Golgi proce...
journal_title：Molecular immunology
pub_type： 杂志文章
doi：10.1016/0161-5890(95)00132-8
更新日期：1996-01-01 00:00:00
abstract：:Of the antioxidant/prooxidant mechanisms mediating the regulation of inflammatory mediators, particularly cytokines, oxidative stress-related pathways remain a cornerstone. It is conspicuous that there is a strong association between free radical accumulation (ROS/RNS; oxidative stress) and the evolution of inflammati...
journal_title：Molecular immunology
pub_type： 杂志文章,评审
doi：10.1016/j.molimm.2004.09.029
更新日期：2005-05-01 00:00:00
