Abstract:
:The ACTGCTGA sequence (CTG motif) is located immediately upstream of the NF-kappaB enhancer in the human immunodeficiency virus type-1 (HIV-1) long terminal repeat (LTR). We previously reported on the frequent duplication of this motif in HIV-1-infected individuals. In this study we further characterized the role of the CTG element in transcription and its interaction with cellular proteins. We analyzed the biological activity of LTR promoters with dimeric, monomeric or deleted CTG motifs. Our results indicate that LTRs containing the monomeric CTG motif are the most active transcriptional promoters. Furthermore, mutant viruses with dimeric or deleted CTG motif were consistently out-competed by the wild-type virus in co-culture experiments. Gel mobility shift assays were used to identify a nuclear protein of approximately 68 kD that specifically interacts with this DNA sequence. Copyright 1994 S. Karger AG, Basel
journal_name
J Biomed Scijournal_title
Journal of biomedical scienceauthors
Koken SE,van Wamel JL,Geelen JL,Berkhout Bdoi
10.1007/BF02257981keywords:
subject
Has Abstractpub_date
1994-03-01 00:00:00pages
83-92issue
2eissn
1021-7770issn
1423-0127pii
jbs01083journal_volume
1pub_type
杂志文章abstract:BACKGROUND:Endothelial cell (EC) dysfunctions, including turnover enrichment, gap junction disruption, inflammation, and oxidation, play vital roles in the initiation of vascular disorders and atherosclerosis. Hemodynamic forces, i.e., atherprotective pulsatile (PS) and pro-atherogenic oscillatory shear stress (OS), ca...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-019-0551-8
更新日期:2019-08-07 00:00:00
abstract::Two Chinese hamster ovary (CHO) cell lines stably transfected with human insulin receptor cDNA, CHO-wt and CHO-mut, which express an equivalent number of normal and kinase-defective human insulin receptors, respectively, were used to assess the roles of insulin receptor tyrosine kinase activity in insulin-regulated ge...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02258333
更新日期:1994-12-01 00:00:00
abstract::Kaposi's sarcoma-associated herpesvirus (KSHV), also designated human herpesvirus 8 (HHV-8), has been linked to Kaposi's sarcoma, as well as to primary effusion lymphoma (PEL), and a subset of multicentric Castleman's disease. KSHV genomes are maintained as episomes within infected cells and the virus exhibits a bipha...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-020-00637-y
更新日期:2020-03-07 00:00:00
abstract::The SARS related Coronavirus genome contains a variety of novel accessory genes. One of these, called ORF7a or ORF8, code for a protein, known as 7a, U122 or X4. We set out to determine the three-dimensional structure of the soluble ectodomain of this type-I transmembrane protein by nuclear magnetic resonance spectros...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-005-9043-9
更新日期:2006-05-01 00:00:00
abstract::The herpes simplex virus type 1 (HSV-1) latency-associated transcript (LAT) promoter 1 (LP1) is an inducible and cell type-specific promoter involved in regulating the production of an 8.3-kb primary LAT transcript during acute and latent infection of peripheral sensory neurons and during subsequent virus reactivation...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02255935
更新日期:1998-11-01 00:00:00
abstract::Dengue virus infection presents a wide spectrum of manifestations including asymptomatic condition, dengue fever (DF), or severe forms, such as dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) in affected individuals. The early prediction of severe dengue in patients without any warning signs who may lat...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-015-0191-6
更新日期:2015-10-14 00:00:00
abstract::The signaling pathways leading to extracellular signal-regulated kinase (ERK) and p38 mitogen-activated protein kinase (MAPK) activation by N-formyl-Met-Leu-Phe (fMLP) or platelet activating factor (PAF) in human neutrophils were examined. Previously, we found that changes of intracellular Ca2+ ([Ca2+]i) stimulated by...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-005-1704-1
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Human keratinocytes and derived products are crucial for skin repair and regeneration. Despite substantial advances in engineered skin equivalents, their poor availability and immunorejection remain major challenges in skin grafting. METHODS:Induced keratinocyte-like cells (iKCs) were directly reprogrammed ...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-020-00642-1
更新日期:2020-04-20 00:00:00
abstract::In all eukaryotes, the plasma membrane is critically important as it maintains the architectural integrity of the cell. Proper anchorage and interaction between the plasma membrane and the cytoskeleton is critical for normal cellular processes. The ERM (ezrin-radixin-moesin) proteins are a class of highly homologous p...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-016-0246-3
更新日期:2016-03-17 00:00:00
abstract::An amendment to this paper has been published and can be accessed via the original article. ...
journal_title:Journal of biomedical science
pub_type: 已发布勘误
doi:10.1186/s12929-020-00686-3
更新日期:2020-09-21 00:00:00
abstract::Mediation of the respiratory reflex effects of an exogenous serotonin challenge goes beyond the lung vagi and is suggested to involve the nodose ganglia. In the present experiments the effects of an intravenous serotonin challenge on breathing pattern were studied in 8 pentobarbitone-chloralose anaesthetised cats. Bol...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02256323
更新日期:2003-11-01 00:00:00
abstract::Our goal was to develop a system to study proteins that associate in vivo with the Moloney murine leukemia virus (M-MuLV) enhancer elements by the isolation of intact proviral chromatin. The M-MuLV long terminal repeats (LTRs) contain tandemly repeated transcriptional enhancer sequences consisting of smaller motifs th...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02256602
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND:The conserved Notch signaling pathway regulates cell fate decisions and maintains stem cells in multicellular organisms. Up-regulation of Notch signaling is observed in several types of cancer and is causally involved in proliferation and survival of cancer cells. Thus, it is of great interest to look for an...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-18-42
更新日期:2011-06-17 00:00:00
abstract::The present study was undertaken to elucidate the mechanism of intra-arterial propofol-induced vascular permeability change resulting in tissue edema. The mechanism of propofol-induced hyperpermeability was examined in a rat femoral artery injection model. Vascular permeability was determined by measuring the Evans bl...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-007-9164-4
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Angiotensin II (Ang II) signaling occurs via two major receptors which activate non-receptor tyrosin kinases that then interact with protein tyrosin-phosphatases (PTPs) to regulate cell function. SHP-2 is one such important PTP that also functions as an adaptor to promote downstream signaling pathway. Its ro...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-18-38
更新日期:2011-06-13 00:00:00
abstract::Endotoxin shock is characterized by systemic hypotension, hyporeactiveness to vasoconstrictors and acute lung edema. A nitric oxide synthase (NOS) inhibitor, NG-monomethyl-L-arginine (L-NMMA) has been shown to be effective in reversing acute lung injury. In the present study, we evaluated the effects of NOS blockade b...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02256421
更新日期:1999-01-01 00:00:00
abstract::Liver cancer is the predominant cause of cancer mortality in males of Southern China and Taiwan. The current therapy is not satisfactory, and more effective treatments are needed. In the search for new therapies for liver tumor, we found that Concanavalin A (Con A), a lectin from Jack bean seeds, can have a potent ant...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/1423-0127-16-10
更新日期:2009-01-19 00:00:00
abstract::To identify novel genes associated with apoptosis in glioma cells, we treated T98G glioma cells with okadaic acid (OA). Differential display using 15 random primers was performed on RNA extracted from these cells. Upregulated bands were excised from polyacrylamide gels and cloned. Northern blots were used to confirm R...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02256622
更新日期:2000-03-01 00:00:00
abstract::Adeno-associated virus (AAV) vectors were shown capable of high efficiency transduction of both dividing and nondividing cells and tissues. AAV-mediated transduction leads to stable, long-term transgene expression in the absence of apparent immune response. These properties and the broad host range of AAV vectors indi...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1007/BF02253246
更新日期:2000-07-01 00:00:00
abstract:BACKGROUND:Breast cancer is considered as an increasing major life-threatening concern among the malignancies encountered globally in females. Traditional therapy is far from satisfactory due to drug resistance and various side effects, thus a search for complementary/alternative medicines from natural sources with les...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-016-0257-0
更新日期:2016-04-16 00:00:00
abstract:BACKGROUND:Calcium oxalate (CaOx) is the major constituent of about 75% of all urinary stone and the secondary hyperoxaluria is a primary risk factor. Current treatment options for the patients with hyperoxaluria and CaOx stone diseases are limited. Oxalate degrading bacteria might have beneficial effects on urinary ox...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-014-0086-y
更新日期:2014-08-30 00:00:00
abstract:BACKGROUND:Cell adhesion has been shown to induce activation of certain growth factor receptors in a ligand-independent manner. However, the mechanism for such activation remains obscure. METHODS:Human epidermal carcinoma A431 cells were used as a model to examine the mechanism for adhesion-induced activation of hepat...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-18-78
更新日期:2011-10-27 00:00:00
abstract::The envelope gene of Moloney murine leukemia virus (Mo-MLV) and its various functional domains have been studied extensively but not as much in terms of their biological effects on cell growth. In this study, we report the biological characterization of a truncated Mo-MLV envelope gene, LN11, which is devoid of a sign...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/BF02253367
更新日期:2000-11-01 00:00:00
abstract:BACKGROUND:Cisplatin (cis-diamminedichloroplatinum II, CDDP) is one of the most effective chemotherapeutic agents. However, its clinical use is limited due to the severe side effects, including nephrotoxicity and acute kidney injury (AKI) which develop due to renal accumulation and biotransformation of CDDP. The allevi...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/s12929-019-0518-9
更新日期:2019-03-13 00:00:00
abstract:BACKGROUND:Lipopolysaccharide (LPS) is recognized as the most potent microbial mediator presaging the threat of invasion of Gram-negative bacteria that implicated in the pathogenesis of sepsis and septic shock. This study was designed to examine the microRNA (miRNA) expression in whole blood from mice injected with int...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-19-69
更新日期:2012-07-31 00:00:00
abstract::Hypoxia is an important microenvironmental factor that induces cancer metastasis. Hypoxia/hypoxia-inducible factor-1α (HIF-1α) regulates many important steps of the metastatic processes, especially epithelial-mesenchymal transition (EMT) that is one of the crucial mechanisms to cause early stage of tumor metastasis. T...
journal_title:Journal of biomedical science
pub_type: 杂志文章,评审
doi:10.1186/1423-0127-19-102
更新日期:2012-12-14 00:00:00
abstract:BACKGROUND:Wedelolactone (WEL), a major coumestan ingredient in Wedelia chinensis, has been used to treat septic shock, hepatitis and venom poisoning in traditional Chinese medicines. The objective of the study was to elucidate the anti-inflammatory effects and mechanism of WEL with a cellular model of lipopolysacchari...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/1423-0127-20-84
更新日期:2013-10-31 00:00:00
abstract:BACKGROUND:Mounting evidences have showed the important role of transforming growth factor-β (TGF-β) in immunological surveillance of tumors. Some studies have also indicated human leukocyte antigen (HLA)-G-associated immune escape involving TGF-β management in gastric cancer (GC). However, the mechanism underlying it ...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1186/s12929-015-0177-4
更新日期:2015-12-02 00:00:00
abstract::Cancer has been the leading cause of death in Taiwan over the past two decades and liver cancer is the leading cause of all cancer deaths in Taiwan with a trend of increase in incidence. Therapeutic options and efficacy for liver cancer have been limited and the 5-year survival rate is less than 7% in the Unite States...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-006-9141-3
更新日期:2007-03-01 00:00:00
abstract::Critical assessment of experimental muscle-pain models resulting from maximal muscle contraction may provide a means of assessing hypersensitivity and the central nociceptive mechanisms involved in diffused muscle pain. The aim of the present study was, therefore, to investigate the patterns of nociceptive behavior an...
journal_title:Journal of biomedical science
pub_type: 杂志文章
doi:10.1007/s11373-005-6595-7
更新日期:2005-01-01 00:00:00