Abstract:
:Abnormal glucose handling in the proximal tubule may play an important role in the development of diabetic nephropathy. Thus, the present study was designed to examine the effect of high glucose on alpha-methyl-D-glucopyranoside (alpha-MG) uptake and its signaling pathways in the primary cultured rabbit renal proximal tubule cells (PTCs). When PTCs were preincubated with 25 or 50 mM glucose for 4 h, 25 or 50 mM glucose significantly inhibited alpha-MG uptake, while 25 or 50 mM mannitol and L-glucose did not affect. Actinomycin D and cycloheximide did not block the effect of high glucose on alpha-MG uptake. Twenty-five millimoles glucose-induced inhibition of alpha-MG uptake was blocked by mepacrine and AACOCF(3), phospholipase A(2) (PLA(2)) inhibitors. Twenty-five millimoles of glucose, not mannitol or L-glucose, significantly increased the [(3)H]-arachidonic acid (AA) release compared to control. In addition, the 25 mM glucose-induced [(3)H]-AA release was completely blocked by mepacrine or AACOCF(3). Indomethacin, a cyclooxygenase inhibitor, blocked the high glucose-induced inhibition of alpha-MG uptake, although econazole, cytochrome P-450 a epoxygenase inhibitor, and nordihydroguaiaretic acid (NDGA), a lipoxygenase inhibitor, did not. On the other hand, staurosporine and bisindolylmaleimide I, protein kinase C (PKC) inhibitors, blocked 25 mM glucose-induced increase of [(3)H]-AA release and inhibition of alpha-MG uptake. However, neomycin, U 73122, and phospholipase c(PLC) inhibitors did not block the effect of 25 mM glucose on [(3)H]-AA release and alpha-MG uptake. Pretreatment of methoxyverapamil, an L-type Ca(2+) channel blocker, abolished 25 mM glucose-induced increase of [(3)H]-AA release. Indeed, 25 mM glucose increased translocation of cPLA(2) from cytosolic fraction to membrane fraction. In conclusion, the present results demonstrate that high glucose inhibits alpha-MG uptake by the increase of AA release via the activation of PKC.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Han HJ,Choi HJ,Park SHdoi
10.1002/(SICI)1097-4652(200006)183:3<355::AID-JCP8keywords:
subject
Has Abstractpub_date
2000-06-01 00:00:00pages
355-63issue
3eissn
0021-9541issn
1097-4652pii
10.1002/(SICI)1097-4652(200006)183:3<355::AID-JCP8journal_volume
183pub_type
杂志文章abstract::Matrix metalloproteinase-9 (MMP-9) is implicated in the invasion and metastasis of breast cancer cells. We investigated the modulatory effects of nitric oxide (NO) on the 12-O-tetradecanoylphorbol 13-acetate (TPA)-induced MMP-9 expression in MCF-7 cells. Different chemical NO donors inhibited the extracellular content...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21658
更新日期:2009-05-01 00:00:00
abstract::Sustained production of plasma proteins, notably albumin, is a reliable indicator of the differentiated state of hepatocytes. In this work, we have developed a fetal hepatocyte culture system where studying the regulation of albumin expression in proliferating liver cells. Our results show that under proliferative con...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041520113
更新日期:1992-07-01 00:00:00
abstract::Increased vascular resistance in the fetoplacental circulation is a characteristic of preeclampsia. However, the potential molecular mechanisms of this condition remain obscure. The current study aimed to determine the direct effect of the peptide antigen corresponding to the second extracellular loop of the angiotens...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24113
更新日期:2013-01-01 00:00:00
abstract::Quercetin has potentially beneficial effects on disease prevention, including cancer. An intriguing issue regarding the mechanisms of action of quercetin is the ability of this drug to modulate estrogen receptor (ER) activities. In a previous study, we demonstrated that quercetin elicited apoptosis through an ERα-depe...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22917
更新日期:2012-05-01 00:00:00
abstract::The existence of cancer stem cells is debatable in numerous solid tumors, yet in leukemia, there is compelling evidence of this cell population. Leukemic stem cells (LSCs) are altered cells in which accumulating genetic and/or epigenetic alterations occur, resulting in the transition between the normal, preleukemic, a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.29394
更新日期:2020-06-01 00:00:00
abstract::The growth factors FGF and vasopressin were found to have only a transient effect on confluent quiescent monolayers of Swiss 3T3 cells. Whether measured as cumulative entry into S-phase by autoradiography, or as cell division by time-lapse filming, the elevated rate of cell proliferation was maintained only over 10-15...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041210314
更新日期:1984-12-01 00:00:00
abstract::The retinoblastoma protein-interacting zinc-finger (RIZ) gene, also known as PRDM2, encodes two protein products, RIZ1 and RIZ2, differing for the presence of a 202 aa domain, called PR domain, at the N-terminus of the RIZ1 molecule. While the histone H3 K9 methyltransferase activity of RIZ1 is associated with the neg...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22803
更新日期:2012-03-01 00:00:00
abstract::Glial fibrillary acidic protein (GFAP) is an intermediate filament that is expressed in specifically expressed auricular chondrocytes, which are good cell sources of cartilage regenerative medicine. Although our group uses GFAP as a biomarker of matrix production in the cultured auricular chondrocytes, the biological ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25771
更新日期:2017-11-01 00:00:00
abstract::The Toll and Toll-like receptor signaling pathways are evolutionarily conserved pathways that regulate innate immunity in insects and mammals. While efforts have been made to clarify the signal transduction events that occur during infection, much less is known about the components that maintain immune quiescence. Her...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24472
更新日期:2014-04-01 00:00:00
abstract::Mesenchymal stem cells (MSC) represent emerging cell-based therapies for diabetes and associated complications. Ongoing clinical trials are using exogenous MSC to treat type 1 and 2 diabetes, cardiovascular disease and non-healing wounds due to diabetes. The majority of these trials are aimed at exploiting the ability...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24013
更新日期:2012-09-01 00:00:00
abstract::The effect of epinephrine was tested on the proliferation of rat arterial smooth muscle cells (SMC) in secondary cultures. Epinephrine added daily to the culture medium caused a striking stimulation of growth. The effect increased with time and was dose-dependent. Maximal stimulation was observed at a concentration of...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041160207
更新日期:1983-08-01 00:00:00
abstract::We can distinguish two classes of membrane transport changes in cultured cells: (a) growth-rate contingent changes are those which occur in coordination with the onset of density-dependent inhibition of growth; (b) transformation-specific changes are those which occur when cells become transformed, and which can be de...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040890431
更新日期:1976-12-01 00:00:00
abstract::Epoxyeicosatrienoic acids (EETs) are arachidonic acid metabolites formed endogenously via the cytochrome P450 pathway in rat, rabbit, and human kidney. We characterized the effects of the four regioisomeric EETs on ion transport in the renal epithelial cell line, LLC-PK1. Among the EETs, 14,15-EET was the most potent ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041600109
更新日期:1994-07-01 00:00:00
abstract::Cultivation of human parotid glands in serum-free medium (Ca(2+) concentration, 0.2 mM) with growth supplements resulted in isolation of a homogeneous population of epithelial cells without any mesenchymal cells. The isolated cells showed an undifferentiated phenotype with scant cytoplasmic organelles, and low levels ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10149
更新日期:2002-10-01 00:00:00
abstract::Osteopontin (OPN) is a major non-collagenous bone matrix protein implicated in the regulation of cell function. Although OPN is rich in the cementum of the tooth, the significance of OPN in this tissue is not understood. Tooth root resorption is the most frequent complication of orthodontic tooth movement (TM). The ob...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21250
更新日期:2008-03-01 00:00:00
abstract::An unusual inward current which is slowly elicited in the Xenopus oocyte membrane during sustained depolarization is reportedly carried by Na+. It is thought that Na+ selective channels are in some way induced to become voltage-sensitive by the depolarization. Earlier studies report that the induction process involves...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199902)178:2<258::AID-JCP1
更新日期:1999-02-01 00:00:00
abstract::Damage-associated molecular patterns, including mitochondrial DNA (mtDNA) are released during hemorrhage resulting in the development of endotheliopathy. Tranexamic acid (TXA), an antifibrinolytic drug used in hemorrhaging patients, enhances their survival despite the lack of a comprehensive understanding of its cellu...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28603
更新日期:2019-11-01 00:00:00
abstract::Biochemical events elicited by interleukin 1 (IL-1) were studied in Swiss 3T3 fibroblasts. One hour after its addition, IL-1 stimulated synthesis of prostaglandin E2 (PGE2), which continued to accumulate for 4 days. IL-1 also stimulated cAMP accumulation. Indomethacin blocked cAMP accumulation in response to IL-1, sug...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041390106
更新日期:1989-04-01 00:00:00
abstract::Besides the nerve endings, the soma of trigeminal neurons also respond to membrane depolarizations with the release of neurotransmitters and neuromodulators in the extracellular space within the ganglion, a process potentially important for the cross-communication between neighboring sensory neurons. In this study, we...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27901
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Acute kidney injury (AKI) shows several kinds of disorders, which acutely harm the kidney. However, the current medical methods have limited therapeutic effects. The present study aimed to find out the molecular mechanism of AKI pathogenesis, which may provide new insights for future therapy. METHODS:Bioinf...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28118
更新日期:2019-08-01 00:00:00
abstract::Sterol regulatory element binding protein 1 (SREBP-1) is well-known as the master regulator of lipogenesis in rodents. Acyl-CoA synthetase short-chain family member 2 (ACSS2) plays a key role in lipogenesis by synthesizing acetyl-CoA from acetate for lipogenesis. ATP citrate lyase (ACLY) catalyzes the conversion of ci...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25954
更新日期:2018-02-01 00:00:00
abstract::Transforming growth factor-beta (TGF-beta) signaling in endothelial cells is able to modulate angiogenesis and vascular remodeling, although the underlying molecular mechanisms remain poorly understood. Endoglin and ALK-1 are components of the TGF-beta receptor complex, predominantly expressed in endothelial cells, an...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20311
更新日期:2005-08-01 00:00:00
abstract::The synthesis and turnover of metabolically labeled proteoglycans from medium, cell layer, and substratum-associated compartments were characterized in four cell lines of fibroblastic origin, including a fibrosarcoma line, and in the murine melanoma cell type, B16.F10. Substantial differences were apparent between the...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041350206
更新日期:1988-05-01 00:00:00
abstract::Proliferative vitroretinopathy (PVR) is caused by retinal pigment epithelial (RPE) cell proliferation and transformation into fibrotic cells that produce extracellular matrix (ECM) components. Transforming growth factor beta1 (TGF-beta1) is known to play an important role in PVR pathogenesis. To determine how TGF-beta...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21424
更新日期:2008-08-01 00:00:00
abstract::The cells responsible for the long-term in vitro generation of murine mast cells have been examined. Sequential analysis of all colony types obtained from cultures of spleen or bone marrow cells showed that only colonies derived from multipotential cells (mixed-erythroid colonies) or mast cell progenitors, contained c...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041210121
更新日期:1984-10-01 00:00:00
abstract::CSF-1 is a hemopoietic growth factor that specifically regulates the survival, proliferation, and differentiation of mononuclear phagocytic cells. Populations of adherent bone marrow-derived macrophages (BMM) devoid of CSF-1 producing cells were used to study regulation by CSF-1 of macrophage entry into S phase. More ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041220210
更新日期:1985-02-01 00:00:00
abstract::The hypothesis of functional hemizygosity has been examined for the alpha-amanitin resistant (AmaR, a codominant marker) locus in a series of Chinese hamster cell lines. AmaR mutants were obtained from different cell lines, e.g., CHO, DHW, M3- 1 and CHO-Kl, at similar frequencies. After fractionation of different RNA ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040970321
更新日期:1978-12-01 00:00:00
abstract::Incubation of primary cultures of parenchymal hepatocytes in a conditioned medium (CM), collected over the first 3 h of serum-free rat hepatocyte culture (CM(0-3)), induces a time dependent increase of the frequency of apoptotic cells which is accompanied by prominent changes of cell morphology. Short-term treatment w...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10439
更新日期:2004-03-01 00:00:00
abstract::Although the role of several protooncogenes, including sis, myc, and myb in the regulation of growth and differentiation of vascular cells has been examined in some detail, limited information is available on the contribution of ras genes to these processes. In the present studies the influence of oncogenic ras transf...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041610312
更新日期:1994-12-01 00:00:00
abstract::Wnt/β-catenin signaling pathway plays a crucial role in diabetic cardiomyopathy (DCM), thus we aimed at investigating the effect of one therapeutic approach with resveratrol (RSV) given systemically and combined treatment of RSV with mesenchymal stem cells (MSCs) that was either RSV-preconditioned or not on Wnt/β-cate...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27947
更新日期:2019-07-01 00:00:00