Abstract:
:High sensitivity detection of DNA is essential for genomics. The intrinsic fluorescence from DNA is very weak and almost all methods for detecting DNA rely on the use of extrinsic fluorescent probes. We show that the intrinsic emission from DNA can be enhanced many-fold by spatial proximity to silver island films. Silver islands are subwavelength size patches of metallic silver on an inert substrate. Time-resolved measurements show a decreased lifetime for the intrinsic DNA emission near the silver islands. These results of increased intensity and decreased lifetime indicate a metal-induced increase in the radiative rate decay of the DNA bases. The possibility of increased radiative decay rates for DNA bases and other fluorophores suggest a wide variety of DNA measurements and other biomedical assays based on metal-induced increases in the fluorescence quantum yield of weakly fluorescent substances.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Lakowicz JR,Shen B,Gryczynski Z,D'Auria S,Gryczynski Idoi
10.1006/bbrc.2001.5445subject
Has Abstractpub_date
2001-09-07 00:00:00pages
875-9issue
5eissn
0006-291Xissn
1090-2104pii
S0006-291X(01)95445-2journal_volume
286pub_type
杂志文章abstract::This article has been withdrawn at the request of the author. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.11.049
更新日期:2007-11-21 00:00:00
abstract::Ghrelin is a peptide found in the hypothalamus and stomach that stimulates food intake and whose circulating concentrations are affected by nutritional state. Very little is known about other central behavioral effects of ghrelin, and thus, we investigated the effects of ghrelin on anxiety and memory retention. The pe...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(02)02740-7
更新日期:2002-12-20 00:00:00
abstract::We recently developed the cellular model MVLN-15 in which estrogenic action can be detected by bioluminescence. Using this cellular model, we characterized the inhibitory effect of retinoic acid on the estrogen-dependent induction of luciferase transcription. We present evidence that i) the inhibitory effect of retino...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(92)91614-v
更新日期:1992-02-28 00:00:00
abstract::Calmodulin (CaM) regulation of cholinergic muscarinic receptor was investigated using synaptic membrane isolated from rat brains and [3H]-QNB as a binding ligand. CaM exerts a biphasic effect on receptor binding showing both a Ca2+-dependent receptor loss and an increase depending on the state of membrane phosphorylat...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)91263-x
更新日期:1985-12-31 00:00:00
abstract::Enhancer of Zeste 2 (EZH2) is the key enzymatic factor in Polycomb Repressive Complex 2 (PRC2), a transcriptional repressor which contributes to oncogenesis. Recent research has revealed the key role of aberrant EZH2 hyper-activity in human gliomas. Here, we examined the role of the lesser-known PRC2-associated PHD Fi...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2018.07.089
更新日期:2018-09-10 00:00:00
abstract::A rat transplantable pituitary tumor, MtT/F84, grows much faster in E2 treated rats than in normal females, but is much retarded in thyroidectomized rats. Triiodothyronine (T3) administration in a drinking water increased the tumor growth by the dose dependent manner. The tumor contained both estrogen receptor (ER) an...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(88)80677-6
更新日期:1988-04-15 00:00:00
abstract::The findings from several studies have suggested that circulating miRNAs are imbalanced with the genesis of gastric cancer (GC). Both normal and cancer cells can generate and secrete exosomes, which are nanosized membrane vesicles that can transport microRNAs and proteins. Emerging evidence indicates that the exosomes...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2017.10.003
更新日期:2017-11-25 00:00:00
abstract::Reactive oxygen species (ROS) are highly reactive and directly attack surrounding biomolecules to deteriorate cellular and tissue functions. Meanwhile, ROS also serve as signaling mediators to upregulate pro-inflammatory cytokine expression via activation of the nuclear factor kappa B signaling pathway, and the increa...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.12.035
更新日期:2021-01-08 00:00:00
abstract::Signaling and desensitization of G protein-coupled receptor are intimately related, and measuring them separately requires certain parameters that represent desensitization independently of signaling. In this study, we tested whether desensitization requires signaling in three different receptors, beta2-adrenergic rec...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.11.070
更新日期:2006-01-13 00:00:00
abstract::Treatment of human peripheral blood monocytes with oxidized (oxLDL), minimally modified low-density lipoprotein (mmLDL) or lysophosphatidylcholine (LPC) for 24h was associated with macrophage-like differentiation, as assessed by morphology/CD14 expression. Suppression of these effects by staurosporin (STS) indicated t...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1995.1088
更新日期:1995-01-17 00:00:00
abstract::The clinical effects of serpin polymerisation include thromboembolism, emphysema, and liver disease. A through understanding of serpin polymerisation mechanisms and the structures involved will permit the rational design of therapeutic polymerisation inhibitors. Here we show that serpin polymerisation can be delayed b...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.7805
更新日期:1997-12-18 00:00:00
abstract::Fibronectin, von Willebrand factor, and fibrinogen each bind to the glycoprotein IIb-IIIa complex on activated platelets via an arg-gly-asp-ser (RGDS) sequence present within the adhesive proteins. Both the IIb and IIIa polypeptides of the IIb-IIIa complex on thrombin activated platelets are specifically and extensive...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(89)91639-2
更新日期:1989-04-14 00:00:00
abstract::The involvement of Na+ in insulin-secretory responses to metabolizable and nonmetabolizable amino acids known to be cotransported with Na+, were examined using islet-derived BRIN-BD11 cells. At stimulatory (16.7 mM) glucose, 10 mM of l-alanine, alpha-aminoisobutyric acid (AIB) or l-proline stimulated 1.3- to 10. 4-fol...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.9136
更新日期:1998-08-19 00:00:00
abstract::Auxins regulate various aspects of plant growth and development. However, the mechanism by which these hormones elicit diverse physiological processes is not clear. We present evidence for the role of auxin in protein phosphorylation and the possible involvement of calmodulin in auxin-induced changes. In the presence ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(87)80055-4
更新日期:1987-04-29 00:00:00
abstract::Apoptosis is a mode of cell death characterized by chromatin condensation and disassembly of the nuclear lamina, processes that are also characteristic of mitosis. The apparent similarity between the two events, together with observations that apoptosis can occur following G2 arrest, has led to the suggestion that apo...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2086
更新日期:1994-08-15 00:00:00
abstract::Hypoxic/ischemic trauma is a primary factor in the pathology of various disease states. Yet, very little is known about the molecular mechanisms involved in cellular responses and adaptations to hypoxia. As a means of identifying intracellular signaling systems that are regulated in response to hypoxia, the effects of...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.7907
更新日期:1998-01-06 00:00:00
abstract::Dopamine D4 receptor (DRD4) has received attention in terms of pathogenesis of schizophrenia and association with human personalities. We isolated the human DRD4 gene containing the 5'-flanking region and determined its sequence. Analysis of the DRD4 transcripts by 5'-RACE (5'-rapid amplification of cDNA ends) reveale...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.6770
更新日期:1997-06-18 00:00:00
abstract::The effect of nicotinamide and flavin coenzymes on the 5-lipoxygenase activity has been determined in cell-free extracts from rat polymorphonuclear leukocytes. 5-lipoxygenase was assayed in the presence of 5-hydroperoxyeicosatetraenoic acid (5-HPETE), which caused a 3 to 4-fold stimulation in the maximal conversion of...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(86)80206-6
更新日期:1986-12-15 00:00:00
abstract::Glial precursor cells (GPCs) are present in the adult human central nervous system (CNS) and they can be isolated and maintained in culture for in vitro studies. This study analysed expression of mGluR3 and mGluR5 metabotropic glutamate receptor (mGluR) mRNAs in GPCs. A2B5 surface antigen positive GPCs were isolated u...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.04.158
更新日期:2004-06-18 00:00:00
abstract::The tetracycline-regulated gene expression system has been widely used in mice to turn a transgene on and off in a target organ, but with only limited success. We developed an advanced system in which a Tet-off regulation unit was integrated into the ROSA26 locus and became active after Cre-mediated excision of the ne...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.10.054
更新日期:2005-12-16 00:00:00
abstract::The effect of vitamin A on the expression of apoAI and CIII genes in intact rats was studied. In vitamin A-deficient rats, the hepatic level of apoAI mRNA was increased and enhanced by an oral administration of excess retinoic acid(RA). A similar administration to normal rats caused an increase in the apoAI mRNA level...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2838
更新日期:1994-12-30 00:00:00
abstract::The binding of cardiac glycosides to the E2 conformation of Na, K ATPase suggests that this conformation may represent a potential regulatory site for an endogenous ligand. To examine this hypothesis, delipidated and desalted, ethanolic extracts were prepared from plasma. Plasma extracts produced displacement of 3H-ou...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(88)90441-x
更新日期:1988-01-29 00:00:00
abstract::Drosophila Dicer-2 processes RNA substrates into short interfering RNAs (siRNAs). Loquacious-PD (Loqs-PD), a dsRNA-binding protein that associates with Dicer-2, is required for processing of a subset of RNA substrates including hairpin RNAs into siRNAs. Inorganic phosphate-a small molecule present in all cell types-in...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2018.03.108
更新日期:2018-04-15 00:00:00
abstract::Leukocyte recruitment to lymph nodes or inflammatory sites is regulated by adhesion and activation. L-selectin (CD62L) is expressed on leukocytes and mediates tethering and rolling of leukocytes on endothelial cells. Upon stimulation L-selectin is down-regulated by proteolytic cleavage but the molecular mechanisms reg...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(02)02886-3
更新日期:2003-01-10 00:00:00
abstract::NADH-rubredoxin oxidoreductase (NROR), a flavoprotein from the obligately anaerobe Clostridium acetobutylicum is encoded by an ORF (nror) of 1140 nucleotides. Whereas primary structure analysis reveals that NROR has amino acid sequence patterns homologous with those involved in FAD and NAD-binding, the enzyme is dista...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.5196
更新日期:2001-07-13 00:00:00
abstract::Casein kinase II (CKII) activity in colorectal tumours was compared before and after heterotransplantation onto nude mice. The test revealed that the enzyme activity was about two-fold enhanced in the tumours isolated from the nude mice when compared to the respective primary tumours from which they were derived. Immu...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(89)92184-0
更新日期:1989-08-30 00:00:00
abstract::The first peptidergic neurohormone from the ticks Ixodes ricinus and Boophilus microplus has been identified by using a combination of immunocytochemistry and mass spectrometric analysis of single cells. The novel peptide (Ixori-PVK, PALIPFPRV-NH2) shows a high sequence homology with members of the insect periviscerok...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.10.165
更新日期:2005-12-30 00:00:00
abstract::Several recent studies have suggested that cancer stem cells (CSCs) are involved in resistance to gefitinib in non-small cell lung cancer (NSCLC). Oct4, a member of the POU-domain transcription factor family, has been shown to be involved in CSC properties of various cancers. We previously reported that Oct4 and the p...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.03.064
更新日期:2016-04-22 00:00:00
abstract::TESK1 (testis-specific protein kinase 1) is a serine/threonine kinase, with a unique structure composed of an N-terminal protein kinase domain and a C-terminal proline-rich domain. Northern blot analysis revealed that TESK1 mRNA is predominantly expressed in testicular germ cells. We present here evidence that express...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.9099
更新日期:1998-08-10 00:00:00
abstract::We have previously demonstrated that antibodies to the growth-associated protein, GAP-43, introduced intracellularly using a lipid carrier inhibited neurite outgrowth in NB2a/d1 neuroblastoma cells, and that culturing of these cells on adhesive substrates such as laminin or poly-L-lysine overcame this restriction. The...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2204
更新日期:1994-08-30 00:00:00