Abstract:
:It is therapeutically important to elucidate the factors involved in the radiation resistance of tumors. We previously showed that ATP is released from mouse melanoma B16 cells in response to γ-irradiation, but the role of adenosine, a metabolite of ATP, is still unclear. Here, we show that the adenosine A2B receptor is involved in DNA damage repair and radioresistance in mouse melanoma B16 cells. The DNA damage response after γ-irradiation was attenuated by pretreatment with A2B receptor antagonists, such as PSB603, while it was enhanced by pretreatment with A2B receptor agonists, such as BAY60-6583. γ-Irradiation decreased the cell survival rate, and pretreatment with PSB603 further reduced the survival rate. On the other hand, pretreatment with BAY60-6583 increased the cell survival rate after irradiation. The DNA damage response and the cell survival rate after γ-irradiation were both decreased in A2B-knockdown cells. In vivo experiments in mice confirmed that tumor growth was suppressed and delayed in the irradiated group pretreated with PSB603, compared with the irradiation-alone group. Our results indicate that adenosine A2B receptor contributes to radioresistance, and could be a new target for the development of agents to increase the efficacy of radiotherapy.
journal_name
Biol Pharm Bulljournal_title
Biological & pharmaceutical bulletinauthors
Tanaka Y,Kitabatake K,Abe R,Tsukimoto Mdoi
10.1248/bpb.b19-00976subject
Has Abstractpub_date
2020-03-01 00:00:00pages
516-525issue
3eissn
0918-6158issn
1347-5215journal_volume
43pub_type
杂志文章abstract::Acetaminophen (APAP) is a widely used analgesic and antipyretic drug. Drug-induced liver injury from agents such as APAP is known to vary between individuals within a species. To avoid liver injury and ensure the proper use of pharmaceutical products, it is important to be able to predict such risks using genetic info...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b15-00734
更新日期:2016-01-01 00:00:00
abstract::Epidermis is one of the well-known estrogen target tissues. Information regarding estrogen metabolism in epidermis is still very limited compared to that of estrogen action. In the breast cancer tissue, 17β-estradiol (E(2)) is inactivated by sulfation and the expression level of estrogen sulfotransferase (SULT1E1) is ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.34.1147
更新日期:2011-01-01 00:00:00
abstract::The genetic similarities of four species of Glycyrrhiza plants were determined by DNA analyses of random amplified polymorphic DNA (RAPD) and restriction fragment length polymorphism (RFLP). The phylogenic trees were constructed from the genetic similarities estimated from RAPD and RFLP profiles. These results indicat...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.17.1529
更新日期:1994-11-01 00:00:00
abstract::Radiation induces an important inflammatory response in the irradiated organs, characterized by leukocyte infiltration and vascular changes. Since adhesion molecules play an important role in facilitating the immune response at the inflammation sites, interfering with the expression of these molecules may be an import...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.33.752
更新日期:2010-01-01 00:00:00
abstract::Formulations consisting of egg albumin, indomethacin (IND), and olive oil or fatty acids, were prepared by vigorous stirring using a high-speed homogenizer and subsequent freeze-drying. To confirm the anti-inflammatory properties and ulcerogenic effects of the formulations, we examined the action of the formulations o...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.16.675
更新日期:1993-07-01 00:00:00
abstract::Turnera ulmifolia is a plant belonging to the family Turneraceae, popularly known in Brazil as chanana. This species is distributed from Guyana to southern Brazil where it is considered a weed. The plant occurs in tropical rain forest, fields, and gardens. Chanana tea is used in Brazilian folk medicine for the treatme...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.25.487
更新日期:2002-04-01 00:00:00
abstract::The effects of different combinations of ciprofloxacin (CIP) and norfloxacin (NOR) against Escherichia coli and Staphylococcus aureus were studied using checkerboard, fractional inhibitory concentration (FIC) and time-kill analysis methods. Results obtained by the checkerboard method showed that the more effectives co...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b16-00616
更新日期:2017-01-01 00:00:00
abstract::Here, we confirmed that stable expression of B-cell lymphoma-xL (Bcl-xL) in N18TG neuroglioma cells could suppress c-Jun N-terminal protein kinase (JNK) activation, nuclear fragmentation, and cell death caused by etoposide treatment. Moreover, additional overexpression of JNK1 led to partially antagonize the antiapopt...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.31.1686
更新日期:2008-09-01 00:00:00
abstract::Indole-3-carbinol (I3C) is a natural compound found in a wide variety of plant food substances including members of the family Cruciferae with antioxidant and potential chemopreventive properties. In a previous study, I3C exhibited broad spectrum antibacterial activities. Particularly, it showed a more potent antibact...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.31.1798
更新日期:2008-09-01 00:00:00
abstract::The degradation of 125I-endothelin-1 (125I-ET-1) was examined on cultured porcine aortic endothelial cell (EC) and rat vascular smooth muscle cell (SMC) by HPLC analysis. The degradation of ET-1 was observed on SMC and was slightly observed on EC. Membrane fractions of SMC had a strong potency for the degradation of E...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.17.376
更新日期:1994-03-01 00:00:00
abstract::Nitric oxide (NO) and the partial pressure of oxygen (pO(2)) in the liver were simultaneously quantified in rats with partial hepatic ischemia/reperfusion injury (PHIRI). Real-time NO/pO(2) monitoring and immunohistochemical analysis for superoxide dismutase and inducible nitric oxide synthase (iNOS) and endothelial N...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.33.77
更新日期:2010-01-01 00:00:00
abstract::The liver contrast effects of Sonazoid in two ultrasonographic imaging modes, gray-scale conventional and harmonic, were examined as a time-related study in normal rabbits, and evaluated quantitatively and visually with tumor-model rabbits to estimate the diagnostic potential. Peak enhancement of vessels and parenchym...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.26.1272
更新日期:2003-09-01 00:00:00
abstract::We examined the effects of ginseng total saponin (GTS) and several ginsenosides injected intrathecally (i.t.) or intracerebroventricularly (i.c.v.) on the antinociception induced by cold water swimming. The tail-flick response was used as an antinociceptive parameter. We found that i.t. injection of GTS time- and dose...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.26.858
更新日期:2003-06-01 00:00:00
abstract::The objective of this study was to study the effect of olmesartan medoxomil (OLM), an antihypertensive drug, on intra-articular inflammation induced by zymosan (Zy) in Wistar rats. Intra-articular inflammation was induced in the right knees of rats by 1 mg Zy dissolved in saline. The animals were divided into the foll...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b16-00296
更新日期:2016-01-01 00:00:00
abstract::The utility of gastrointestinal physiology regulated-dogs (regulated-dogs) was evaluated in a bioavailability study. The gastrointestinal physiology of beagle dogs was regulated with a combined-treatment of intramuscular pentagastrin and intravenous atropine sulfate. Theophylline has been regarded as a drug that is ab...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.17.931
更新日期:1994-07-01 00:00:00
abstract::Nanoparticles are used in many fields and in everyday products. Silver nanoparticles are the most frequently used nanoparticles; for example, in food-related products, owing to their antibacterial activity. However, it has been pointed out that they might have unexpected biological effects, and evaluation of their eff...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b20-00631
更新日期:2020-01-01 00:00:00
abstract::Astragali Radix (AR), is a popular herbal medicine used to treat allergic diseases in Korea, Japan and China. Our study examined the effect of an AR ethanol extract on both in vitro and in vivo murine CD4 T cells' differentiation into Th1 and Th2 subsets. CD4 T cells from Balb/c mice were activated with anti-CD3/anti-...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.27.1946
更新日期:2004-12-01 00:00:00
abstract::The present study was designed to evaluate skin permeation enhancement effect of essential oils from Ligusticum chuanxiong Hort (chuanxiong oil) in rabbits and to compare the in vivo absorption and in vitro permeation using flurbiprofen as a model drug. In vivo results demonstrated that chuanxiong oil showed a rapid a...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.29.1217
更新日期:2006-06-01 00:00:00
abstract::This study was designed to test the efficacy of eugenol, a compound obtained from the essential oil of cloves (Syzygium aromaticum) in collagen-induced arthritis (CIA), a well characterized murine model of rheumatoid arthritis. Macroscopic clinical evidence of CIA manifests first as periarticular erythema and edema in...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b12-00128
更新日期:2012-01-01 00:00:00
abstract::Pantethine and fursultiamine have been evaluated for their clinical usefulness in the treatment and prevention of uncomplicated postoperative adhesive intestinal obstruction. In recent years, the actions of drugs used to treat gastrointestinal diseases have been elucidated pharmacologically from the viewpoints of gast...
journal_title:Biological & pharmaceutical bulletin
pub_type: 临床试验,杂志文章
doi:10.1248/bpb.34.1640
更新日期:2011-01-01 00:00:00
abstract::The effect of carboxamidemethylated Fc fragment (CM-Fc) from human immunoglobulin G (IgG) on type II collagen (C II)-induced arthritis (CIA) in DBA/1J mice was studied. CM-Fc suppressed the development of CIA while Fc fragment did not. CM-Fc inhibited the increase in serum anti-C II IgG. CM-Fc suppressed C II-induced ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.17.623
更新日期:1994-05-01 00:00:00
abstract::Glucocorticoids have multiple systemic effects that may influence bone metabolism but also directly affect osteoblasts by decreasing their proliferation. Using human osteoblastic SaM-1 cells, we examined whether the effects of hydrocortisone on cellular proliferation are mediated by hepatocyte growth factor (HGF). Hum...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.34.700
更新日期:2011-01-01 00:00:00
abstract::The effective antigen (Ag) uptake by microfold cells (M-cells) is important for the induction of an efficient mucosal immune responses. Here, we show that 10-hydroxydecanoic acid (10-HDAA) from royal jelly (RJ) potentially supports M-cell differentiation and induces effective antigen-specific mucosal immune responses ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b20-00101
更新日期:2020-01-01 00:00:00
abstract::Puerarin (daidzein 8-C-glucoside) is an isoflavone C-glucoside contained in the roots of Pueraria lobata OHWI. We have previously isolated the human intestinal bacterium, strain PUE, which metabolizes puerarin to daidzein, though the enzyme which cleaves C-glycosidic bond has not been clarified. Here, we identified on...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b18-00729
更新日期:2019-03-01 00:00:00
abstract::Nine alkaloid constituents in the root of Aconitum yesoense var. macroyesoense, as well as three acetylated derivatives, were examined for their peripheral vaso-activities by measuring laser-flowmetrically the cutaneous blood flow in the hind foot of mice after intravenous administration. The major constitutive delcos...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.20.978
更新日期:1997-09-01 00:00:00
abstract::Alpha1-adrenoceptor antagonists are clinically useful for the improvement of urinary obstruction due to benign prostatic hyperplasia (BPH), and their therapeutic effects are mediated through the blockade of prostatic alpha(1)-adrenoceptors. The present study was undertaken to predict the magnitude and duration of alph...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.30.1237
更新日期:2007-07-01 00:00:00
abstract::Ty2 retrotransposons are the mobile genetic elements of the yeast Saccharomyces cerevisiae. Transcriptional regulation of Ty2-917 requires a complex set of cis acting elements which are located both upstream and downstream of the transcription initiation site. Previously, the glycolysis regulatory protein Gcr1p has be...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.25.1212
更新日期:2002-09-01 00:00:00
abstract::The hydrodynamic method by rapid intravenous injection of a large volume of plasmid DNA is known to be an efficient and liver-specific method of in vivo gene delivery and achieves high levels of foreign gene expression, particularly in hepatocytes. Low transgene activities have also been observed in other organs such ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.32.755
更新日期:2009-04-01 00:00:00
abstract::Trimidox (3,4,5-trihydroxybenzamidoxime) is one of the most potent ribonucleotide reductase inhibitors, revealing an antitumor effect in several experimental studies. We have examined the effect of trimidox on the induction of cytotoxicity and apoptosis via oxidative stress by typical free radical inducers, hydrogen p...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.30.994
更新日期:2007-05-01 00:00:00
abstract::Ge-132 is a synthetic organic germanium that is used as a dietary supplement. The antioxidant activity of Ge-132 on cultured mammalian cells was investigated in this study. First, Ge-132 cytotoxicity on mammalian cultured cells was determined by measuring lactate dehydrogenase (LDH) levels. Ge-132 had no cytotoxic eff...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b17-00949
更新日期:2018-05-01 00:00:00