Abstract:
:Idiopathic pulmonary fibrosis (IPF) involves infiltration of leucocytes, pulmonary injury, fibrosis and resulting pulmonary dysfunction. Myofibroblasts and transforming growth factor (TGF)-beta1 have been suggested to play a major role in the pathology and the myofibroblasts are derived from both lung epithelial cells through epithelial-mesenchymal transition (EMT) and activation of lung fibroblasts. Heat shock protein 70 (HSP70) confers protection against various stressors and has the anti-inflammatory activity. In this study, we examined the effect of expression of HSP70 on bleomycin-induced pulmonary fibrosis in mice, a tentative animal model of IPF. Bleomycin-induced pulmonary injury and inflammatory response were ameliorated in transgenic mice overexpressing HSP70 compared to wild-type mice, even though bleomycin-induced pulmonary fibrosis and dysfunction were also suppressed in the transgenic mice. The production of TGF-beta1 and expression of pro-inflammatory cytokines was lower in cells from the transgenic mice than wild-type mice after the administration of bleomycin. In vitro, the suppression of HSP70 expression stimulated TGF-beta1-induced EMT-like phenotypes of epithelial cells but did not affect the TGF-beta1-dependent activation of fibroblasts. Orally administered geranylgeranylacetone (GGA), a clinically used drug with HSP-inducing activity, conferred protection against bleomycin-induced pulmonary injury, as well as against the inflammatory response, fibrosis and dysfunction. These results suggest that HSP70 plays a protective role against bleomycin-induced pulmonary injury, inflammation, fibrosis and dysfunction through cytoprotective effects and by inhibiting the production of TGF-beta1, TGF-beta1-dependent EMT of epithelial cells and expression of pro-inflammatory cytokines. Results also suggest that HSP70-inducing drugs, such as GGA, could be beneficial in the prophylaxis of IPF.
journal_name
Biochem Pharmacoljournal_title
Biochemical pharmacologyauthors
Tanaka K,Tanaka Y,Namba T,Azuma A,Mizushima Tdoi
10.1016/j.bcp.2010.05.025subject
Has Abstractpub_date
2010-09-15 00:00:00pages
920-31issue
6eissn
0006-2952issn
1873-2968pii
S0006-2952(10)00389-8journal_volume
80pub_type
杂志文章abstract::Human immunodeficiency virus type 1 (HIV-1) gene expression is modulated by some virus-encoded proteins, possibly acting at multiple levels of control, which are also known to be involved in the regulation of gene expression in uninfected cells (transcriptional, post-transcriptional, nucleocytoplasmic transport, and t...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(88)90078-0
更新日期:1988-10-15 00:00:00
abstract::The antiepileptic sodium valproate (VPA) systematically induces an asymptomatic hyperammonemia of renal origin in fasting normal human volunteers and in fasting rats, accompanied by an increased renal glutamine uptake. Fasting rats were injected with VPA and their mitochondria isolated, or isolated mitochondria of fas...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(89)90675-8
更新日期:1989-11-15 00:00:00
abstract::Ribonucleotide reductase is the rate-limiting enzyme for the de novo synthesis of deoxynucleoside triphosphates and therefore represents a good target for cancer chemotherapy. Trimidox (3,4,5-trihydroxybenzamidoxime) was identified as a potent inhibitor of this enzyme and was shown to significantly decrease deoxycytid...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/s0006-2952(02)01186-3
更新日期:2002-08-01 00:00:00
abstract::Polyamines (putrescine, spermidine and spermine) are aliphatic amines that are produced by the action of ornithine decarboxylase (ODC) in a rate-limiting and protein kinase C (PKC)-regulated step. Because high levels of polyamines are found in the synovial fluid of arthritic patients, the aim of the present study was ...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2011.04.015
更新日期:2011-08-01 00:00:00
abstract::Hyperphagia (overeating) is often associated with energy over-storage and obesity, which may lead to a myriad of serious health problems, including heart disease, hypertension, and type 2 diabetes. Thus, understanding the complex pathological mechanisms underlying hyperphagia and obesity has an important clinical sign...
journal_title:Biochemical pharmacology
pub_type: 杂志文章,评审
doi:10.1016/s0006-2952(02)00883-3
更新日期:2002-05-01 00:00:00
abstract::The development of the plasma cell tumor (PCT) model was the first widely accepted in vivo model of multiple myeloma (MM). Potter and colleagues used this chemically induced PCT model to study the pathophysiology of malignant plasma cells and also used it to screen anti-MM agents. Two decades later the C57BL/KaLwRij m...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2014.03.013
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:Salvinorin A (SA) is a potent anti-inflammatory diterpene isolated from the Mexican plant S. divinorum. Recently we showed that the novel SA analog, PR-38 has an inhibitory effect on mouse gastrointestinal (GI) motility mediated by opioid and cannabinoid (CB) receptors. The aim of the study was to characteri...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2014.09.018
更新日期:2014-12-15 00:00:00
abstract::Three sulfolipid compounds, 1, 2, and 3, have been isolated from a higher plant, a pteridophyte, Athyrium niponicum, as potent inhibitors of the activities of calf DNA polymerase alpha and rat DNA polymerase beta. The inhibition by the sulfolipids was concentration dependent, and almost complete inhibition of DNA poly...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/s0006-2952(97)00536-4
更新日期:1998-02-15 00:00:00
abstract::Combining site-directed mutagenesis with information obtained from molecular modelling of the bradykinin (BK) human B2 receptor (hB2R) as derived from the bovine rhodopsin crystal structure [Science 289 (2000) 739], we previously defined a putative binding mode for the non-peptide B2 receptor antagonists, FR173657 and...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2003.09.034
更新日期:2004-02-15 00:00:00
abstract::Carbon tetrachloride (CCl4)-induced inhibition of very low density lipoprotein (VLDL) secretion was studied in isolated hepatocytes. The hypothesis that inhibition of secretion is due to altered calcium homeostasis following CCl4-dependent inhibition of endoplasmic reticulum calcium sequestration was investigated. Inh...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(84)90714-7
更新日期:1984-08-01 00:00:00
abstract::Methotrexate (MTX) is a chemotherapy agent linked to cognitive deficits in cancer patients received chemotherapy treatment. MTX decreases cell proliferation in the hippocampus, which is concomitant with cognitive deficits in animal models. The present study aimed to investigate the disadvantages of MTX on cognition as...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2019.02.010
更新日期:2019-05-01 00:00:00
abstract::Cilostamide derivatives are potent inhibitors of human platelet aggregation and selectively inhibit human platelet cyclic adenosine monophosphate (cyclic AMP) phosphodiesterase. N-Cyclohexyl-N-(2-hydroxybutyl)-5-[6-1,2,3,4-tetrahydro-2-oxoquinolyl oxy)] -butyramide (OPC-13135) is one of these derivatives, and the conc...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(84)90103-5
更新日期:1984-11-01 00:00:00
abstract::Deoxycytidine kinase (dCK) (EC 2.7.1.74) is a key enzyme in the activation of several therapeutic nucleoside analogs (NA). Its activity can be increased in vivo by Ser-74 phosphorylation, a property that could be used for enhancing NA activation and clinical efficacy. In line with this, studies with recombinant dCK sh...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2012.03.022
更新日期:2012-07-01 00:00:00
abstract::The reaction mechanism of DNA topoisomerase II (TOP2) involves a covalent double-strand break intermediate in which the enzyme is coupled to DNA via a 5'-phosphotyrosyl bond. This normally transient enzyme-bridged break is stabilised by drugs such as mitoxantrone, mAMSA, etoposide, doxorubicin, epirubicin and idarubic...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2015.12.015
更新日期:2016-03-01 00:00:00
abstract::Reactive oxygen species (ROS) attack guanine bases in DNA and form 8-hydroxydeoxyguanosine (8-OHdG), which has been regarded simply as an oxidative mutagenic by-product. On the other hand, our previous report showed paradoxically ROS attenuating action of generated 8-OHdG. In the current study, both in vitro and in vi...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2010.08.023
更新日期:2011-01-01 00:00:00
abstract::To derive structure/function relationships for muscarinic receptor/G-protein coupling, the m2 and m5 muscarinic receptors and a series of m2/m5 chimeras were tested for agonist binding and functional responses in a cellular proliferation/transformation assay. m5, which mediates stimulation of phosphatidylinositol turn...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(95)02234-1
更新日期:1996-02-23 00:00:00
abstract::The effect of deferoxamine on nucleotide metabolism in HL-60 leukemic cells was studied to explore the mechanism of its antiproliferation activity. It was found that in intact cells deferoxamine markedly inhibited the ribonucleotide reduction and incorporation of bases (adenine, hypoxanthine), ribonucleosides (inosine...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(87)90601-0
更新日期:1987-07-15 00:00:00
abstract::Two methods avoiding the widespread technique of collagenase perfusion have been employed to study the regulation of total cytochrome P450 content in rat hepatocyte culture. One technique required the perfusion of the liver with the chelating agent EDTA to dissociate the parenchymal cells prior to culture. Over a peri...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(92)90283-o
更新日期:1992-01-22 00:00:00
abstract::The effect of biscoclaurine (bisbenzylisoquinoline) alkaloids on phospholipase A2 and C activation in signal transduction system of rabbit platelet was studied. Isotetrandrine, cepharanthine and berbamine inhibited the aggregation induced by collagen but not by other stimuli such as thrombin and arachidonic acid, whil...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(91)90539-h
更新日期:1991-02-01 00:00:00
abstract::Mastoparan, a polypeptide known to activate heterotrimeric GTP-binding proteins, enhances the transport of Ca2+ and K+ across membranes. In the present study we investigated the influence of mastoparan on transepithelial resistance (TER) and on short circuit current (SCC) of the intestinal cell line T84. Mastoparan de...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/s0006-2952(03)00043-1
更新日期:2003-04-01 00:00:00
abstract::In order to study the metabolism of benzo[a]pyrene (BP), it must be dissolved in an organic solvent vehicle for delivery to the tissue. We studied the effects of five organic solvent vehicles, i.e. dimethyl sulfoxide (DMSO), acetone, methanol, ethanol, and ethyl acetate, on benzo[a]pyrene hydroxylase activity and the ...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(86)90055-9
更新日期:1986-08-01 00:00:00
abstract::A marked inhibition of the growth of solid tumor adenocarcinoma 755 was achieved by the combination of 5-fluorouracil (5-FU) with bromovinyldeoxyuridine (BVDU). The therapeutic index (LD50/ED50) for the combination of BVDU plus 5-FU was 8.1 and 3.9 upon intraperitoneal (i.p.) or oral (p.o.) administration, respectivel...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(88)90025-1
更新日期:1988-04-15 00:00:00
abstract::1-(3'-Chlorophenyl)-3-[2-(3,3-dimethyl-1-azetidinyl)ethyl] imidazolidin-2-one, zetidoline, a new neuroleptic agent, when incubated with rat liver microsomes was rapidly metabolized to six free (mets B, D, I, L, M and N) and two conjugated metabolites (mets E and F). Sites of the metabolic attack (oxidation) were prima...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(86)90110-3
更新日期:1986-05-01 00:00:00
abstract::EM012, a semisynthetic phthalideisoquinoline alkaloid, has been recently found to target microtubules and possess anti-cancer activity. In this study, we evaluated the effects of EM012 in combination with the classic microtubule-targeting agent paclitaxel. Our results demonstrated that EM012 enhanced the anti-prolifer...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2004.08.032
更新日期:2004-12-15 00:00:00
abstract::The protective action of cysteine or mercaptopropionylglycine (MPG) in acute ethanol-induced liver injury has been investigated in the rat. Cysteine accelerated clearance of ethanol and acetaldehyde from blood and liver and prevented an increase in hepatic content of triglyceride and serum ornithine carbamoyl transfer...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(83)90562-2
更新日期:1983-01-15 00:00:00
abstract::Inhibition of angiogenesis is becoming one promising, alternative approach to stop tumor from growth and spreading to distant organs. TNP-470, an analog of fumagillin, possesses potent anti-angiogenic effects with minimal toxicity in animal tumor models and is now in the phase III of human cancer trial. Although TNP-4...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2004.05.020
更新日期:2004-08-15 00:00:00
abstract::Surfaces of higher eukaryotes such as plants, invertebrates, and vertebrates, including humans, are normally covered with microorganisms but usually are not infected by them. The reason, apart from physical barriers, is the production of gene-encoded antimicrobial peptides by epithelial cells. Many novel antimicrobial...
journal_title:Biochemical pharmacology
pub_type: 杂志文章,评审
doi:10.1016/s0006-2952(98)00226-3
更新日期:1999-01-15 00:00:00
abstract::Carboxylesterases (CESs) play important roles in the metabolism of many ester-drugs. In the present study, we identified and characterized dexamethasone-induced methylprednisolone hemisuccinate (MPHS) hydrolase in rat liver microsomes. Intraperitoneal injection of dexamethasone resulted in a significant increase in th...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2005.01.017
更新日期:2005-04-15 00:00:00
abstract::Catalase, superoxide dismutase, and dimethylsulfoxide were tested for their ability to prevent the cytotoxic effect of 6-hydroxydopamine (6-OHDA) on the human neuroblastoma line SY5Y. Viability was measured at two time points after 6-OHDA treatment: at 3 hr by means of amino acid incorporation and at 24 hr by trypan b...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/0006-2952(82)90208-8
更新日期:1982-01-15 00:00:00
abstract::The human ether-a-go-go-related gene (hERG) encodes the rapidly activating, delayed rectifier potassium channel (IKr) important for cardiac repolarization. Dysfunction of the hERG channel can cause Long QT Syndrome (LQTS). A wide variety of structurally diverse therapeutic compounds reduce the hERG current by acute di...
journal_title:Biochemical pharmacology
pub_type: 杂志文章
doi:10.1016/j.bcp.2012.09.002
更新日期:2013-01-01 00:00:00