Abstract:
:The endocannabinoid system (ECS) is activated at the onset of obesity and diverse metabolic diseases. Endocannabinoids mediate their physiological and behavioral effects by activating specific cannabinoid receptors, mainly cannabinoid receptor 1 (CB(1)R). Diabetic nephropathy (DN) is induced by hyperlipidemia, and renal proximal tubule cells are an important site for the onset of DN. However, the pathophysiology of CB(1)R, especially in the hyperlipidemia of DN, has not been elucidated. Therefore, we examined the effect of palmitic acid (PA) on CB(1)R expression and its related signal pathways in human renal proximal tubular cells (HK-2 cells). PA significantly increased CB(1)R mRNA and protein levels and induced CB(1)R internalization. PA-induced activation of CB(1)R is prevented by the treatment of AACOCF(3) (a cPLA(2) inhibitor), indomethacin and NS398 (a COX 2 inhibitors). Indeed, PA increased cPLA(2), and COX-2 but not COX-1. We also investigated whether the PA-induced activation of CB(1)R is linked to apoptosis. As a result, AM251 (a CB(1)R antagonist) attenuated PA-mediated apoptosis in a concentration-dependent manner. Furthermore, PA decreased GRP78 expression and induced increases in the endoplasmic reticulum (ER) stress signaling pathways p-PERK, p-eIF2α, p-ATF4, and CHOP, which were blocked by AM251 treatment. Moreover, PA increased the Bax/Bcl-2 ratio, cleaved PARP, and caspase-3 levels. The PA-induced apoptotic effects were decreased with CB(1)R-specific antagonist (AM251) treatment and CB1 si-RNA transfection. In conclusion, PA induced apoptosis through ER stress via CB(1)R expression in human proximal tubule cells. Our results provide evidence that CB(1)R blockade may be a potential anti-diabetic therapy for the treatment of DN.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Lim JC,Lim SK,Han HJ,Park SHdoi
10.1002/jcp.22255subject
Has Abstractpub_date
2010-11-01 00:00:00pages
654-63issue
3eissn
0021-9541issn
1097-4652journal_volume
225pub_type
杂志文章abstract::Osteogenic differentiation is a complicated process that depends on various regulatory factors and signal pathways. In our research, the osteogenic differentiation capacity was analyzed by alizarin red staining, alkaline phosphatase activity, and protein levels of osteogenic differentiation markers including runt-rela...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27499
更新日期:2019-05-01 00:00:00
abstract::Generation of fully functional hematopoietic multipotent progenitor (MPP) cells from human pluripotent stem cells (hPSCs) has a great therapeutic potential to provide an unlimited cell source for treatment of hematological disorders. We previously demonstrated that CD34(+) CD31(+) CD144(+) population derived from hPSC...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25199
更新日期:2016-05-01 00:00:00
abstract::Cervical cancer is the fourth most frequent cancer in women worldwide. PDZ-binding kinase (PBK) is proven to promote the malignant behaviors of various carcinomas. However, its functional roles and oncogenic mechanisms in cervical cancer are poorly understood. In this study, we reported that PBK was highly expressed i...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.30134
更新日期:2020-11-13 00:00:00
abstract::The clinical literature strongly suggests that bone healing in cigarette smokers is impaired. Since cigarette smoke (CS) contains numerous polycyclic aromatic hydrocarbons (PAHs), and since dioxins impair bone formation in vivo via the Aryl Hydrocarbon Receptor (AHR), we investigated the impact of PAH/AHR signaling on...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22819
更新日期:2012-03-01 00:00:00
abstract::Isolated hamster intestinal epithelial cells can be separated by velocity sedimentationion on 2-10% Ficoll gradients into three subpopulations of cells which differ in morphology, biochemistry, physiology, and membrane components. These subpopulations are not pure but are enriched in a single cell type to the extent t...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041110111
更新日期:1982-04-01 00:00:00
abstract::Baculoviral IAP repeat containing 5 (BIRC5) gene encodes the important protein as survivin, a multifunctional protein, which is involved in cellular and molecular networks, progression of cell cycle, homeostasis, developmental morphogenesis, and apoptosis. The proximal BIRC5 promoter possesses specific binding sites f...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28725
更新日期:2019-11-01 00:00:00
abstract::Considering the high rate of osteoclast-related diseases worldwide, research targeting osteoclast formation/function is crucial. In vitro, we demonstrated that chitooligosaccharide (CS) dramatically inhibited osteoclastogenesis as well as osteoclast function dose-dependently. CS suppressed osteoclast-specific genes ex...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29207
更新日期:2020-03-01 00:00:00
abstract::Neuropathic pain (NP) may cause serious brain diseases, but the genes associated with the metabolic pathway and transcript factors of NP remain unclear. This study is aimed to identify the therapy target genes for NP and to investigate the metabolic pathways and transcript factors associated with NP. The differentiall...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27413
更新日期:2019-05-01 00:00:00
abstract::Cellular senescence is a growth-arrest program that limits cell proliferation. Low-power laser irradiation (LPLI) has been demonstrated to promote cell proliferation. However, whether LPLI can inhibit cellular senescence remains unknown. In the present study, to investigate the functional role of LPLI against skin agi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24425
更新日期:2014-01-01 00:00:00
abstract::The myelin basic protein (MBP) gene contains sequences located upstream of its transcription start site which play a key role in glial-specific transcription of the MBP promoter. Earlier analysis of the 320 bp upstream regulatory sequence of MBP has revealed multiple cis-acting regulatory motifs which differentially r...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041630213
更新日期:1995-05-01 00:00:00
abstract::Mammalian sperm require to spend a limited period of time in the female reproductive tract to become competent to fertilize in a process called capacitation. It is well established that HCO3- is essential for capacitation because it activates the atypical soluble adenylate cyclase ADCY10 leading to cAMP production, an...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25634
更新日期:2017-06-01 00:00:00
abstract::Liver fibrosis (LF) is the result of a vicious cycle between inflammation-induced chronic hepatocyte injury and persistent activation of hepatic stellate cells (HSCs). Mesenchymal stem cell (MSC)-based therapy may represent a potential remedy for treatment of LF. However, the fate of transplanted MSCs in LF remains la...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29176
更新日期:2020-03-01 00:00:00
abstract::The biological effects of the Corticotropin-releasing factor (CRF) family of neuropeptides are mediated by mobilization of [Ca(2+)]. Aim of the current work was to examine if the calcineurin/NFAT (nuclear factor of activated T-cells) signaling pathway is involved in the effect of CRF peptides in catecholamine synthesi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22914
更新日期:2012-05-01 00:00:00
abstract::Lung cancer is the leading cause of cancer death worldwide. Although diagnostic methods and targeted drugs have been rapidly developed in recent years, the underlying molecular mechanisms in the pathogenesis of lung cancer remain enigmatic. The N6-methyladenosine (m6 A) modification is the most common modification of ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.30136
更新日期:2020-11-01 00:00:00
abstract::The epithelium-specific ETS (ESE)-1 transcription factor is induced in chondrocytes by interleukin-1beta (IL-1beta). We reported previously that early activation of EGR-1 by IL-1beta results in suppression of the proximal COL2A1 promoter activity by displacement of Sp1 from GC boxes. Here we report that ESE-1 is a pot...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21338
更新日期:2008-05-01 00:00:00
abstract::Hybridization analysis of mRNA with a cDNA probe for human sucrase-isomaltase, pulse-chase experiments with L-[35S]-methionine followed by SDS-PAGE, and immunofluorescence detection of sucrase-isomaltase were used to analyze the level(s) at which forskolin interferes with the expression of the enzyme in Caco-2 cells i...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041410322
更新日期:1989-12-01 00:00:00
abstract::PI3K/AKT signaling is essential in regulating pathophysiology of osteoarthritis (OA). However, its potential modulatory role in early OA progression has not been investigated yet. Here, a mouse destabilization OA model in the tibia was used to investigate roles of PI3K/AKT signaling in the early subchondral bone chang...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26460
更新日期:2018-08-01 00:00:00
abstract::The hexose transport system of undifferentiated L6 rat myoblasts was investigated. 2-Deoxy-D-glucose (2-DOG) and 2-deoxy-2-fluoro-D-glucose (2FG) were used as analogues to investigate the rate-limiting step of hexose uptake into the cell. Virtually all of the 2-DOG or 2FG taken up into the cell was found to be in the ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041270113
更新日期:1986-04-01 00:00:00
abstract:BACKGROUND:MiR-152 has been reported as a tumor suppressor microRNA that is downregulated in a number of cancers, including colorectal cancer (CRC). A recent study suggested that miR-152 could be one of the key regulators of CRC. The aim of this study is to investigate the role of miR-152 in CRC and its mechanisms. ME...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26891
更新日期:2018-01-01 00:00:00
abstract::Circular RNAs (circRNAs) play critical roles in signal transduction during cell proliferation, differentiation, and apoptosis in a posttranscriptional manner. Recently, circRNAs have been proved to be a large class of animal RNAs with regulatory potency. However, whether circRNAs can respond to mechanical force (MF) a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27686
更新日期:2019-07-01 00:00:00
abstract::Core binding factor β (Cbfβ) is a partner protein of Runx family transcription factors with minimally characterized function in cartilage. Here we address the role of Cbfβ in cartilage by generating chondrocyte-specific Cbfβ-deficient mice (Cbfb(Δch/Δch) ) from Cbfb-floxed mice crossed with mice expressing Cre from th...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25068
更新日期:2016-01-01 00:00:00
abstract::We have previously shown that 24,25-(OH)2D3 plays a major role in resting zone (RC) chondrocyte differentiation and that this vitamin D metabolite regulates protein kinase C (PKC). The aim of the present study was to identify the signal transduction pathway used by 24,25-(OH)2D3 to stimulate PKC activation. Confluent,...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199612)169:3<509::AID-JCP1
更新日期:1996-12-01 00:00:00
abstract::Pyroptosis is a form of necrotic and inflammatory programmed cell death, which could be characterized by cell swelling, pore formation on plasma membranes, and release of proinflammatory cytokines (IL-1β and IL-18). The process of pyroptosis presents as dual effects: protecting multicellular organisms from microbial i...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.29268
更新日期:2020-04-01 00:00:00
abstract::Transforming growth factor-beta1 (TGF-beta1) stimulates expression of plasminogen activator inhibitor type-1 (PAI-1), a serine protease inhibitor (SERPIN) important in the control of stromal barrier proteolysis and cell-to-matrix adhesion. Pharmacologic agents that target MEK (PD98059, U0126) or src family (PP1) kinas...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20279
更新日期:2005-07-01 00:00:00
abstract::The advent of high throughput gene expression profiling, from microarrays to sequence based assays has yielded vast insight into the biology of tumors. New technologies are constantly being unveiled which promise to generate more accurate maps of tumor gene deregulation, and demand the development of new strategies in...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.21554
更新日期:2008-12-01 00:00:00
abstract::We report here that the androgen receptor (AR) and ABCB1 are upregulated in a model of acquired taxol resistance (txr) in ovarian carcinoma cells. AR silencing sensitizes txr cells to taxol threefold, whereas ectopic AR expression in AR-null HEK293 cells induces resistance to taxol by 1.7-fold. AR activation using the...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27535
更新日期:2019-06-01 00:00:00
abstract::During human pregnancy, the trophoblast develops from differentiation of cytotrophoblast cells into an endocrine active syncytiotrophoblast. In culture, isolated mononuclear cytotrophoblasts aggregate and then fuse to form a syncytium, reproducing the in vivo process. In this study, we examined the effect of low oxyge...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199608)168:2<346::AID-JCP1
更新日期:1996-08-01 00:00:00
abstract::T lymphocytes from aged donors function poorly, but the biochemical basis for the defect remains uncertain. We tested the hypothesis that T cells from old mice had a diminished ability to transmit extracellular signals into the cytoplasm, by measuring intracellular free calcium concentrations (Cai) in T cells stimulat...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041320220
更新日期:1987-08-01 00:00:00
abstract::We have previously shown that extracellular ATP acts as a mitogen via protein kinase C (PKC)-dependent and independent pathways (Wang, D., Huang, N., Gonzalez, F.A., and Heppel, L.A. Multiple signal transduction pathways lead to extracellular ATP-stimulated mitogenesis in mammalian cells. I. Involvement of protein kin...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041460320
更新日期:1991-03-01 00:00:00
abstract::It has been reported by us and other groups that the expression of small GTP binding protein RhoB can be induced by genotoxic stressors and glucocorticoid (GC), a stress hormone that plays a key role in stress response. Until now stress-induced genes that confer cytoprotection under stressed conditions are largely unk...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22394
更新日期:2011-03-01 00:00:00