Tetrahydropteridines possess antioxidant roles to guard against glucose-induced oxidative stress in Dictyostelium discoideum.

Abstract:

:Glucose effects on the vegetative growth of Dictyostelium discoideum Ax2 were studied by examining oxidative stress and tetrahydropteridine synthesis in cells cultured with different concentrations (0.5X, 7.7 g L(-1); 1X, 15.4 g L(-1); 2X, 30.8 g L(-1)) of glucose. The growth rate was optimal in 1X cells (cells grown in 1X glucose) but was impaired drastically in 2X cells, below the level of 0.5X cells. There were glucose-dependent increases in reactive oxygen species (ROS) levels and mitochondrial dysfunction in parallel with the mRNA copy numbers of the enzymes catalyzing tetrahydropteridine synthesis and regeneration. On the other hand, both the specific activities of the enzymes and tetrahydropteridine levels in 2X cells were lower than those in 1X cells, but were higher than those in 0.5X cells. Given the antioxidant function of tetrahydropteridines and both the beneficial and harmful effects of ROS, the results suggest glucose-induced oxidative stress in Dictyostelium, a process that might originate from aerobic glycolysis, as well as a protective role of tetrahydropteridines against this stress.

journal_name

BMB Rep

journal_title

BMB reports

authors

Park SO,Kim HL,Lee SW,Park YS

doi

10.5483/bmbrep.2013.46.2.128

subject

Has Abstract

pub_date

2013-02-01 00:00:00

pages

86-91

issue

2

eissn

1976-6696

issn

1976-670X

journal_volume

46

pub_type

杂志文章
  • Znf45l affects primitive hematopoiesis by regulating transforming growth factor-β signaling.

    abstract::Znf45l, containing classical C2H2 domains, is a novel member of Zinc finger proteins in zebrafish. In vertebrates, TGF-β signaling plays a critical role in hematopoiesis. Here, we showed that Znf45l is expressed both maternally and zygotically throughout early development. Znf45l-depleted Zebrafish embryos display sho...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2014.47.1.048

    authors: Chen H,Sun H,Tao D,Yang P,Bian S,Liu Y,Zhang S,Ma Y

    更新日期:2014-01-01 00:00:00

  • Predicting tissue-specific expressions based on sequence characteristics.

    abstract::In multicellular organisms, including humans, understanding expression specificity at the tissue level is essential for interpreting protein function, such as tissue differentiation. We developed a prediction approach via generated sequence features from overrepresented patterns in housekeeping (HK) and tissue-specifi...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/BMBRep.2011.44.4.250

    authors: Paik H,Ryu T,Heo HS,Seo SW,Lee D,Hur CG

    更新日期:2011-04-01 00:00:00

  • Rapamycin-resistant and torin-sensitive mTOR signaling promotes the survival and proliferation of leukemic cells.

    abstract::The serine/threonine kinase mTOR is essential for the phosphoinositide 3-kinases (PI3K) signaling pathway, and regulates the development and function of immune cells. Aberrant activation of mTOR signaling pathway is associated with many cancers including leukemia. Here, we report the contributions of mTOR signaling to...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/BMBRep.2016.49.1.201

    authors: Park S,Sim H,Lee K

    更新日期:2016-01-01 00:00:00

  • Dexamethasone induces the expression of LRRK2 and α-synuclein, two genes that when mutated cause Parkinson's disease in an autosomal dominant manner.

    abstract::LRRK2 (leucine-rich repeat kinase 2) has been identified as a gene corresponding to PARK8, an autosomal-dominant gene for familial Parkinson's disease (PD). LRRK2 pathogenic-specific mutants induce neurotoxicity and shorten neurites. To elucidate the mechanism underlying LRRK2 expression, we constructed the LRRK2-prom...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2013.46.9.234

    authors: Park JM,Ho DH,Yun HJ,Kim HJ,Lee CH,Park SW,Kim YH,Son I,Seol W

    更新日期:2013-09-01 00:00:00

  • Upstream paths for Hippo signaling in Drosophila organ development.

    abstract::Organ growth is fundamental to animal development. One of major mechanisms for growth control is mediated by the conserved Hippo signaling pathway initially identified in Drosophila. The core of this pathway in Drosophila consists of a cascade of protein kinases Hippo and Warts that negatively regulate transcriptional...

    journal_title:BMB reports

    pub_type: 杂志文章,评审

    doi:10.5483/bmbrep.2018.51.3.027

    authors: Choi KW

    更新日期:2018-03-01 00:00:00

  • Regulation of signal transducer and activator of transcription 3 activation by dual-specificity phosphatase 3.

    abstract::Since cancer is the leading cause of death worldwide, there is an urgent need to understand the mechanisms underlying cancer progression and the development of cancer inhibitors. Signal transducer and activator of transcription 3 (STAT3) is a major transcription factor that regulates the proliferation and survival of ...

    journal_title:BMB reports

    pub_type: 新闻

    doi:

    authors: Kim BR,Ha J,Kang E,Cho S

    更新日期:2020-06-01 00:00:00

  • Alterations in dopamine and glutamate neurotransmission in tetrahydrobiopterin deficient spr-/- mice: relevance to schizophrenia.

    abstract::Tetrahydrobiopterin (BH4) is a pivotal cofactor for enzymes responsible for the synthesis and release of monoamine neurotransmitters including dopamine (DA) and serotonin (5-HT) as well as the release of glutamate (Glu). Deficiencies in BH4 levels and reduced activities of BH(4)-associated enzymes have been recently r...

    journal_title:BMB reports

    pub_type: 杂志文章,评审

    doi:10.5483/BMBRep.2010.43.9.593

    authors: Choi YK,Tarazi FI

    更新日期:2010-09-01 00:00:00

  • Genomic characterization of clonal evolution during oropharyngeal carcinogenesis driven by human papillomavirus 16.

    abstract::Secondary prevention via earlier detection would afford the greatest chance for a cure in premalignant lesions. We investigated the exomic profiles of non-malignant and malignant changes in head and neck squamous cell carcinoma (HNSCC) and the genomic blueprint of human papillomavirus (HPV)-driven carcinogenesis in or...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:

    authors: Chae J,Park WS,Kim MJ,Jang SS,Hong D,Ryu J,Ryu CH,Kim JH,Choi MK,Cho KH,Moon SH,Yun T,Kim JI,Jung YS

    更新日期:2018-11-01 00:00:00

  • Non-classical role of Galectin-3 in cancer progression: translocation to nucleus by carbohydrate-recognition independent manner.

    abstract::Galectin-3 is a carbohydrate-binding protein and regulates diverse functions, including cell proliferation and differentiation, mRNA splicing, apoptosis induction, immune surveillance and inflammation, cell adhesion, angiogenesis, and cancer-cell metastasis. Galectin-3 is also recommended as a diagnostic or prognostic...

    journal_title:BMB reports

    pub_type: 杂志文章,评审

    doi:

    authors: Kim SJ,Chun KH

    更新日期:2020-04-01 00:00:00

  • Characterization of full-length enriched expressed sequence tags of dehydration-treated white fibrous roots of sweetpotato.

    abstract::Sweetpotato (Ipomoea batatas (L). Lam.) is relatively tolerant to unfavorable growth conditions such as drought, yet has not been exploited to provide a better understanding of the molecular basis of drought stress tolerance. We obtained 983 high-quality expressed sequence tags of 100 bp or longer (average length of 7...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2009.42.5.271

    authors: Kim SH,Song WK,Kim YH,Kwon SY,Lee HS,Lee IC,Kwak SS

    更新日期:2009-05-31 00:00:00

  • AMD3100 improves ovariectomy-induced osteoporosis in mice by facilitating mobilization of hematopoietic stem/progenitor cells.

    abstract::Inhibition of an increase of osteoclasts has become the most important treatment for osteoporosis. The CXCR4 antagonist, AMD3100, plays an important role in the mobilization of osteoclast precursors within bone marrow (BM). However, the actual therapeutic impact of AMD3100 in osteoporosis has not yet been ascertained....

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2014.47.8.159

    authors: Im JY,Min WK,Park MH,Kim N,Lee JK,Jin HK,Choi JY,Kim SY,Bae JS

    更新日期:2014-08-01 00:00:00

  • Activation of apoptotic protein in U937 cells by a component of turmeric oil.

    abstract::Aromatic (ar)-turmerone from turmeric oil displays anti-tumorigenesis activity that includes inhibited cell proliferation. This study investigated ar-turmerone-mediated apoptotic protein activation in human lymphoma U937 cells. Ar-turmerone treatment inhibited U937 cell viability in a concentration-dependent fashion, ...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2009.42.2.096

    authors: Lee Y

    更新日期:2009-02-28 00:00:00

  • Ventx1.1 competes with a transcriptional activator Xcad2 to regulate negatively its own expression.

    abstract::Dorsoventral patterning of body axis in vertebrate embryo is tightly controlled by a complex regulatory network of transcription factors. Ventx1.1 is known as a transcriptional repressor to inhibit dorsal mesoderm formation and neural differentiation in Xenopus. In an attempt to identify, using chromatin immunoprecipi...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:

    authors: Kumar S,Umair Z,Kumar V,Lee U,Choi SC,Kim J

    更新日期:2019-06-01 00:00:00

  • Long noncoding RNA: multiple players in gene expression.

    abstract::Previously considered as a component of transcriptional noise, long noncoding RNAs (lncRNAs) were neglected as a therapeutic target, however, recently increasing evidence has shown that lncRNAs can participate in numerous biological processes involved in genetic regulation including epigenetic, transcriptional, and po...

    journal_title:BMB reports

    pub_type: 杂志文章,评审

    doi:10.5483/bmbrep.2018.51.6.025

    authors: Chen X,Sun Y,Cai R,Wang G,Shu X,Pang W

    更新日期:2018-06-01 00:00:00

  • Expression level and glycan dynamics determine the net effects of TIMP-1 on cancer progression.

    abstract::Tissue inhibitor of metalloproteinases (TIMPs; TIMP-1, -2, -3 and -4) are endogenous inhibitor for matrix metalloproteinases (MMPs) that are responsible for remodeling the extracellular matrix (ECM) and involved in migration, invasion and metastasis of tumor cells. Unlike under normal conditions, the imbalance between...

    journal_title:BMB reports

    pub_type: 杂志文章,评审

    doi:10.5483/bmbrep.2012.45.11.233

    authors: Kim YS,Kim SH,Kang JG,Ko JH

    更新日期:2012-11-01 00:00:00

  • Agrocybe chaxingu polysaccharide prevent inflammation through the inhibition of COX-2 and NO production.

    abstract::The inhibition of nitric oxide (NO) and cyclooxygenase-2 (COX-2) production is considered to be a promising approach to the treatment of various diseases, including inflammation and cancer. In this study, we examined the effects of the Agrocybe chaxingu beta-glucan (polysaccharide) on lipopolysaccaride (LPS)-induced n...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2009.42.12.794

    authors: Lee BR,Kim SY,Kim DW,An JJ,Song HY,Yoo KY,Kang TC,Won MH,Lee KJ,Kim KH,Joo JH,Ham HJ,Hur JH,Cho SW,Han KH,Lee KS,Park J,Choi SY,Eum WS

    更新日期:2009-12-31 00:00:00

  • Biological roles and an evolutionary sketch of the GRF-GIF transcriptional complex in plants.

    abstract::GROWTH-REGULATING FACTORs (GRFs) are sequencepecific DNA-binding transcription factors that regulate various aspects of plant growth and development. GRF proteins interact with a transcription cofactor, GRF-INTERACTING FACTOR (GIF), to form a functional transcriptional complex. For its activities, the GRF-GIF duo requ...

    journal_title:BMB reports

    pub_type: 杂志文章,评审

    doi:

    authors: Kim JH

    更新日期:2019-04-01 00:00:00

  • Kahweol inhibits lipid accumulation and induces Glucose-uptake through activation of AMP-activated protein kinase (AMPK).

    abstract::Weight loss ≥ 5 percent is sufficient to significantly reduce health risks for obese people; therefore, development of novel weight loss compounds with reduced toxicity is urgently required. After screening of natural compounds with antiadipogenesis properties in 3T3-L1 cells, we determined that kahweol, a coffee-spec...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2017.50.11.031

    authors: Baek JH,Kim NJ,Song JK,Chun KH

    更新日期:2017-11-01 00:00:00

  • IL-18 gene expression pattern in exogenously treated AML cells.

    abstract::IL-18 production may enhance immune system defense against KG-1 cells ; NB4 cells, which are associated with good prognosis, do not produce IL-18. In this study, we treated KG-1 cells with IL-18 and used microarray technology to assess subsequent effects on gene expression. In UniGene-array of 7488 human genes, expres...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2008.41.6.461

    authors: Seo M,Park M,Yook Y,Kwon YS,Suh YJ,Kim MJ,Cho D,Park JH

    更新日期:2008-06-30 00:00:00

  • Transcriptional regulation of Niemann-Pick C1-like 1 gene by liver receptor homolog-1.

    abstract::Factors that modulate cholesterol levels have major impacts on cardiovascular disease. Niemann-Pick C1-like 1 (NPC1L1) functions as a sterol transporter mediating intestinal cholesterol absorption and counter-balancing hepatobiliary cholesterol excretion. The liver receptor homolog 1 (LRH-1) had been shown to regulate...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2015.48.9.253

    authors: Lee ES,Seo HJ,Back SS,Han SH,Jeong YJ,Lee JW,Choi SY,Han K

    更新日期:2015-09-01 00:00:00

  • Comparative evaluation of the biological properties of fibrin for bone regeneration.

    abstract::Fibrin is a natural provisional matrix found in wound healing, while type I collagen is a major organic component of bone matrix. Despite the frequent use of fibrin and type I collagen in bone regenerative approaches, their comparative efficacies have not yet been evaluated. In the present study, we compared the effec...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2014.47.2.156

    authors: Oh JH,Kim HJ,Kim TI,Woo KM

    更新日期:2014-02-01 00:00:00

  • Identification of a novel circularized transcript of the AML1 gene.

    abstract::The AML1 gene is an essential transcription factor regulating the differentiation of hematopoietic stem cells into mature blood cells. Though at least 12 different alternatively spliced AML1 mRNAs are generated, three splice variants (AML1a, AML1b and AML1c) have been characterized. Here, using the reverse transcripti...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2013.46.3.171

    authors: Xu AN,Chen XH,Tan YH,Qi XL,Xu ZF,Zhang LL,Ren FG,Bian SC,Chen Y,Wang HW

    更新日期:2013-03-01 00:00:00

  • Microbial linguistics: perspectives and applications of microbial cell-to-cell communication.

    abstract::Inter-cellular communication via diffusible small molecules is a defining character not only of multicellular forms of life but also of single-celled organisms. A large number of bacterial genes are regulated by the change of chemical milieu mediated by the local population density of its own species or others. The ce...

    journal_title:BMB reports

    pub_type: 杂志文章,评审

    doi:10.5483/BMBRep.2011.44.1.1

    authors: Mitchell RJ,Lee SK,Kim T,Ghim CM

    更新日期:2011-01-01 00:00:00

  • miR-374 promotes myocardial hypertrophy by negatively regulating vascular endothelial growth factor receptor-1 signaling.

    abstract::Vascular endothelial growth factor (VEGF) is an essential cytokine that has functions in the formation of new blood vessels and regression of cardiac hypertrophy. VEGF/VEGF-receptor-1 (VEGFR1) signaling plays a key role in the regression of cardiac hypertrophy, whereas VEGF/VEGFR2 signaling leads to cardiac hypertroph...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2017.50.4.165

    authors: Lee JS,Song DW,Park JH,Kim JO,Cho C,Kim DH

    更新日期:2017-04-01 00:00:00

  • Global knockdown of microRNAs affects the expression of growth factors and cytokines in human adipose-derived mesenchymal stem cells.

    abstract::Cell therapies utilizing mesenchymal stem cells (MSCs) have a great potential in many research and clinical settings. The mechanisms underlying the therapeutic effects of MSCs have been studied previously and the paracrine effects elicited by their production of various growth factors and cytokines were recognized as ...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2014.47.8.106

    authors: Park SK,Lee JS,Choi EK,You D,Kim CS,Suh N

    更新日期:2014-08-01 00:00:00

  • Hypoxic repression of CYP7A1 through a HIF-1α- and SHP-independent mechanism.

    abstract::Liver cells experience hypoxic stress when drug-metabolizing enzymes excessively consume O2 for hydroxylation. Hypoxic stress changes the transcription of several genes by activating a heterodimeric transcription factor called hypoxia-inducible factor- 1α/β (HIF-1α/β). We found that hypoxic stress (0.1% O2) decreased ...

    journal_title:BMB reports

    pub_type: 新闻

    doi:10.5483/bmbrep.2016.49.3.188

    authors: Moon Y,Park B,Park H

    更新日期:2016-03-01 00:00:00

  • p13 from group II baculoviruses is a killing-associated gene.

    abstract::p13 gene was first described in Leucania separata multinuclear polyhedrosis virus (Ls-p13) several years ago, but the function of P13 protein has not been experimentally investigated to date. In this article, we indicated that the expression of p13 from Heliothis armigera single nucleocapsid nucleopolyhedrovirus (Ha-p...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2012.45.12.058

    authors: Lu N,Du E,Liu Y,Qiao H,Yao L,Pan Z,Lu S,Qi Y

    更新日期:2012-12-01 00:00:00

  • Kinetic analysis of Drosophila Vnd protein containing homeodomain with its target sequence.

    abstract::Homeodomain (HD) is a highly conserved DNA-binding domain composed of helix-turn-helix motif. Drosophila Vnd (Ventral nervous system defective) containing HD acts as a regulator to either enhance or suppress gene expression upon binding to its target sequence. In this study, kinetic analysis of Vnd binding to DNA was ...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2010.43.6.407

    authors: Yoo S

    更新日期:2010-06-01 00:00:00

  • Transcription factor EGR-1 transactivates the MMP1 gene promoter in response to TNFα in HaCaT keratinocytes.

    abstract::Matrix metalloproteinase 1 (MMP-1), a calcium-dependent zinccontaining collagenase, is involved in the initial degradation of native fibrillar collagen. Tissue necrosis factor-alpha (TNFα) is a pro-inflammatory cytokine that is rapidly produced by dermal fibroblasts, monocytes/macrophages, and keratinocytes and regula...

    journal_title:BMB reports

    pub_type: 新闻

    doi:

    authors: Yeo H,Lee JY,Kim J,Ahn SS,Jeong JY,Choi JH,Lee YH,Shin SY

    更新日期:2020-06-01 00:00:00

  • EvoSNP-DB: A database of genetic diversity in East Asian populations.

    abstract::Genome-wide association studies (GWAS) have become popular as an approach for the identification of large numbers of phenotype-associated variants. However, differences in genetic architecture and environmental factors mean that the effect of variants can vary across populations. Understanding population genetic diver...

    journal_title:BMB reports

    pub_type: 杂志文章

    doi:10.5483/bmbrep.2013.46.8.191

    authors: Kim YU,Kim YJ,Lee JY,Park K

    更新日期:2013-08-01 00:00:00