Abstract:
:Ebselen (2-phenyl-1,2-benzisoselenazol-3(2H)-one) is an organoselenium radical scavenger compound, which has strong antioxidant and anti-inflammatory effects. However, evidence suggests that this compound could exert deleterious actions on cell physiology. In this study, we have analyzed the effect of ebselen on rat pancreatic AR42J cells. Cytosolic free-Ca2+ concentration ([Ca2+ ]c ), cellular oxidative status, setting of endoplasmic reticulum stress, and phosphorylation of major mitogen-activated protein kinases were analyzed. Our results show that ebselen evoked a concentration-dependent increase in [Ca2+ ]c . The compound induced an increase in the generation of reactive oxygen species in the mitochondria. We also observed an increase in global cysteine oxidation in the presence of ebselen. In the presence of ebselen an impairment of cholecystokinin-evoked amylase release was noted. Moreover, involvement of the unfolded protein response markers, ER chaperone and signaling regulator GRP78/BiP, eukaryotic translation initiation factor 2α and X-box binding protein 1 was detected. Finally, increases in the phosphorylation of SAPK/JNK, p38 MAPK, and p44/42 MAPK in the presence of ebselen were also observed. Our results provide evidences for an impairment of cellular oxidative state and enzyme secretion, the induction of endoplasmic reticulum stress and the activation of crucial mitogen-activated protein kinases in the presence of ebselen. As a consequence ebselen exerts a potential toxic effect on AR42J cells.
journal_name
J Cell Biochemjournal_title
Journal of cellular biochemistryauthors
Santofimia-Castaño P,Izquierdo-Alvarez A,Plaza-Davila M,Martinez-Ruiz A,Fernandez-Bermejo M,Mateos-Rodriguez JM,Salido GM,Gonzalez Adoi
10.1002/jcb.26280subject
Has Abstractpub_date
2018-01-01 00:00:00pages
1122-1133issue
1eissn
0730-2312issn
1097-4644journal_volume
119pub_type
杂志文章abstract::To elucidate the function of the odontogenic ameloblast-associated protein (ODAM) in ameloblasts, we identified more than 74 proteins that interact with ODAM using protoarray. Of the identified proteins, bone morphogenetic protein receptor type-IB (BMPR-IB) was physiologically relevant in differentiating ameloblasts. ...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.24047
更新日期:2012-05-01 00:00:00
abstract::The role of murine Hsp25 phosphorylation in the protection mediated by this protein against TNFalpha- or H2O2-mediated cytotoxicity was investigated in L929 cell lines expressing wild type (wt-) or nonphosphorylatable (mt-) Hsp25. We show that mt-Hsp25, in which the phosphorylation sites, serines 15 and 86, were repla...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:
更新日期:1998-06-15 00:00:00
abstract::The regulatory machinery that governs genetic and epigenetic control of gene expression is compartmentalized in nuclear microenvironments. Temporal and spatial parameters of regulatory complex organization and assembly are functionally linked to biological control and are compromised with the onset and progression of ...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章,评审
doi:10.1002/jcb.21813
更新日期:2008-08-15 00:00:00
abstract::LipN (Rv2970c) belongs to the Lip family of M. tuberculosis H37Rv and is homologous to the human Hormone Sensitive Lipase. The enzyme demonstrated preference for short carbon chain substrates with optimal activity at 45°C/pH 8.0 and stability between pH 6.0-9.0. The specific activity of the enzyme was 217 U/mg protein...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.25285
更新日期:2016-02-01 00:00:00
abstract::Follicle-stimulating hormone-follicle-stimulating hormone receptor (FSH-FSHR) interaction is one of the most thoroughly studied signaling pathways primarily because of being implicated in sexual reproduction in mammals by way of maintaining gonadal function and sexual fertility. Despite material advances in understand...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.28044
更新日期:2018-11-02 00:00:00
abstract::Cancer prevalence is critically increasing worldwide; accordingly, improved prediction and therapeutic tools are necessary. Interleukin (IL)-21 is a potent antitumor cytokine, and the relationship between its gene variations and cancer risk is well established. Nevertheless, so far no study has investigated its role i...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.29174
更新日期:2019-10-01 00:00:00
abstract::The basement membrane (BM) protein laminin-332 (Lm332) (laminin-5) has unique activity and structure as compared with other laminins: it strongly promotes cellular adhesion and migration, and its alpha3, beta3, and gamma2 chains are all truncated in their N-terminal regions (short arms). In the present study, we inves...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.21032
更新日期:2007-02-15 00:00:00
abstract::We have examined the effect of calcium-dependent adhesion, mediated by N-cadherin, on cell signaling during chondrogenesis of multipotential embryonic mouse C3H10T1/2 cells. The activity of chondrogenic genes, type II collagen, aggrecan, and Sox9 were examined in monolayer (non-chondrogenic), and micromass (chondrogen...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.20396
更新日期:2005-05-01 00:00:00
abstract::The proteins of 14-3-3 family are substantially involved in the regulation of many biological processes including the apoptosis. We studied the changes in the expression of five 14-3-3 isoforms (beta, gamma, epsilon, tau, and zeta) during the apoptosis of JURL-MK1 and K562 cells. The expression level of all these prot...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.22061
更新日期:2009-03-01 00:00:00
abstract::Integrins are heterodimeric transmembrane cellular receptors that link the cell to its underlying substratum. Alterations in integrin expression and signaling have been implicated in many aspects of tumorigenesis and metastasis including cell survival, migration, and invasion. In prostate cancer, the progression from ...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章,评审
doi:10.1002/jcb.10665
更新日期:2004-01-01 00:00:00
abstract::In the interphase nucleus of metazoan cells DNA is organized in supercoiled loops anchored to a nuclear matrix (NM). DNA loops are operationally classified in structural and facultative. Varied evidence indicates that DNA replication occurs in replication foci organized upon the NM and that structural DNA loops may co...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.24123
更新日期:2012-07-01 00:00:00
abstract::Recombinant adenovirus serotype 5 (Ad5) vectors have been studied extensively in preclinical gene therapy models and in a range of clinical trials. However, innate immune responses to adenovirus vectors limit effectiveness of Ad5 based therapies. Moreover, extensive pre-existing Ad5 immunity in human populations will ...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章,评审
doi:10.1002/jcb.22328
更新日期:2009-11-01 00:00:00
abstract::The mitochondrial antioxidant enzyme Mn-Superoxide Dismutase (Sod2) is essential for mammalian survival. I82T mutation in human Sod2 has been linked to a wide variety of diseases, including Alzheimer's and Parkinson's diseases as well as some types of cancers. Yeast wild-type (WT) Sod2 and the mutant Sod2 I91T, which ...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.25720
更新日期:2017-05-01 00:00:00
abstract::Glioblastoma is one of the most malignant cancers, with a distinguishing dismal prognosis: surgery followed by chemo- and radiotherapy represents the current standard of care, and chemo- and radioresistance underlie disease recurrence and short overall survival of patients suffering from this malignancy. ATM is a kina...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.26699
更新日期:2018-06-01 00:00:00
abstract::Prion diseases are characterized by high accumulation of infectious prion proteins (PrP(Sc)) in brains. PrP(Sc) are propagated by the conversion of host-encoded cellular prion proteins (PrP(C)) which are essential for developing the disease but are heterogeneously expressed in brains. The disease can be transmitted to...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.23012
更新日期:2011-03-01 00:00:00
abstract::Fgf10 has a prominent role in organogenesis. In the developing lung, Fgf10 is dynamically expressed in the distal mesenchyme from where it diffuses and activates its epithelial receptor, Fgfr2b, to trigger budding. Little is known about how Fgf10 expression is regulated. Here we have identified a mouse lung-specific m...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.21584
更新日期:2008-04-15 00:00:00
abstract::The cadherin/catenin complex plays a key role in the initiation of cell-cell recognition, and adhesion, and the elaboration of structural and functional organization in multicellular tissues and organs. It is associated with tumor metastasis and also acts as an "invasion suppressor" of cancer cells. Nasopharyngeal car...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract::CD4-positive helper T cells and CD8-positive cytotoxic T cells comprise the majority of T lymphocytes present in secondary lymphoid organs and are essential for acquired immunity. These two populations are derived from common precursors in the thymus and selected through interaction between their clonal T-cell recepto...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章,评审
doi:10.1002/jcb.22212
更新日期:2009-08-15 00:00:00
abstract::The role of insulin-like growth factor-I (IGF-I) in regulating estrogen receptor-alpha (ER-alpha) gene expression and activity was investigated in the human breast cancer cell line MCF-7. Treatment of cells with 40 ng/ml IGF-I resulted in a 60% decrease in ER-alpha protein concentration by 3 h, and the amount of ER-al...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/(sici)1097-4644(20000315)76:4<605::aid-jcb
更新日期:2000-01-01 00:00:00
abstract::Transcription factor Sp-1 is an important fibrogenic factor that is involved in the pathogenesis of diabetic nephropathy. In this study, we examined the effect of Sp1 decoy oligodeoxynucleotides (ODNs) on the extracellular matrix (ECM) gene expression in cultured rat mesangial cells (RMC) and streptozotocin (STZ)-indu...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.21440
更新日期:2008-02-01 00:00:00
abstract::Numerous data indicate that hyperhomocysteinemia is a risk factor for cardio- and cerebrovascular diseases. At least in part, homocysteine (HCY) impairs cerebrovascular function because it generates large numbers of free radicals. Since melatonin is a well-known antioxidant, which reduces oxidative stress and decrease...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.21327
更新日期:2007-10-15 00:00:00
abstract::Cisplatin (DDP)-based chemotherapy is a standard strategy for ovarian cancer (OC), while chemoresistance remains a major therapeutic challenge. Transcription factor SOX9 has been reported to be associated with tumor cell proliferation, metastasis, and chemoresistance. In the current study, we observed a higher SOX9 ex...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.26865
更新日期:2019-03-01 00:00:00
abstract::Overweight and obesity are established factors underpin several metabolic impairments, including the cardiovascular. Although the diversity of factors involved in overweight/obesity-induced cardiovascular diseases, mitochondria has been highlighted due to its role in cardiac metabolism. As obesity can be originated in...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.28009
更新日期:2018-10-28 00:00:00
abstract::We previously reported that prostaglandin F2 alpha (PGF2 alpha) receptor is coupled to pertussis toxin (PTX)-sensitive GTP-binding protein (G protein) in osteoblast-like MC3T3-E1 cells [Miwa et al. (1990): Biochem Biophys Res Commun 171:1229-1235]. In the present study, we examined the effect of PGF2 alpha on the acti...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.240550315
更新日期:1994-07-01 00:00:00
abstract::The catalytic domain of protein tyrosine phosphatase SHP-1 possesses distinct substrate specificity. It recognizes the P-3 to P-5 residues of its substrates via the beta5-loop-beta6 region. To study the substrate specificity further, we determined the structure of the catalytic domain of SHP-1 (C455S) complexed with a...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.1195
更新日期:2001-06-26 00:00:00
abstract::Numerous studies have demonstrated the role of A3 adenosine receptor (A3AR) and signaling pathways in the multiple aspects of the tumor. However, there is a little study about the function of A3AR in the biological processes of cancer stem cells (CSCs). CSCs have a critical role in the maintenance and survival of brea...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.25945
更新日期:2017-09-01 00:00:00
abstract::The high incidence of obesity-related pathologies, led to the study of the mechanisms involved in preadipose cell proliferation and differentiation. Here, we demonstrate that modulation of erbB2, plays a fundamental role during proliferation and adipogenic induction of preadipocytes. Using 3T3-L1 cells as model, we de...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.21621
更新日期:2008-05-01 00:00:00
abstract::Mouse embryonic fibroblast (MEF) cells prepared from transgenic mice overexpressing a cancer-specific and growth-related cell surface NADH oxidase with protein disulfide-thiol interchange activity grew at rates approximately twice those of wild-type embryonic fibroblast cells. Growth of transgenic MEF cells overexpres...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.21184
更新日期:2007-05-15 00:00:00
abstract::Extracellular matrix accumulation and fibrosis are the features of diabetic nephropathy. PI3K (phosphatidylinositol 3-kinase)/Akt (protein kinase B) signal pathway and its inhibitor PTEN (phosphatase and tensin homolog deleted on chromosome 10) are revealed to modulate renal fibrosis. However, the exact mechanism is s...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.25402
更新日期:2016-05-01 00:00:00
abstract::Hamster embryo cells metabolize benzo(a)pyrene to derivatives that covalently modify the nuclear macromolecules including proteins. Not all proteins are modified to the same extent nor by the same metabolites. In particular, a protein of apparent molecular weight 32,000 is highly modified by derivatives of trans-9,10-...
journal_title:Journal of cellular biochemistry
pub_type: 杂志文章
doi:10.1002/jcb.1982.240180411
更新日期:1982-01-01 00:00:00