Abstract:
:This mini-review describes how single-molecule sensitive fluorescence resonance energy transfer (FRET) and photoinduced electron transfer (PET) reactions can be successfully applied to monitor conformational dynamics in biopolymers. Single-pair FRET experiments are ideally suited to study conformational dynamics occurring on the nanometer scale, e.g. during protein folding or unfolding. In contrast, conformational dynamics with functional significance, for example occurring in enzymes at work, often appear on much smaller spatial scales of up to several Angströms. Our results demonstrate that selective PET-reactions between fluorophores and amino acids or DNA nucleotides represent a versatile tool to measure small-scale conformational dynamics in biopolymers on a wide range of time scales, extending from nanoseconds to seconds, at the single-molecule level. That is, the monitoring of conformational dynamics of biopolymers with temporal resolutions comparable to those within reach using new techniques of molecular dynamic simulations. Furthermore, we demonstrate that the strong distance dependence of charge separation reactions on the sub-nanometer scale can be used to develop conformationally flexible PET-biosensors. These sensors enable the detection of specific target molecules in the sub-picomolar range and allow one to follow their molecular binding dynamics with temporal resolution.
journal_name
Curr Pharm Biotechnoljournal_title
Current pharmaceutical biotechnologyauthors
Neuweiler H,Sauer Mdoi
10.2174/1389201043376896keywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
285-98issue
3eissn
1389-2010issn
1873-4316journal_volume
5pub_type
杂志文章,评审abstract::A variety of methods including penetrating enhancers, enzyme inhibitors, as well as cargo mediated drug delivery have been explored to improve the intolerance of parenteral administrated insulin, but little success has been achieved so far. Under this background, cell penetrating peptides (CPPs), with their ability to...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/1389201015666140813125840
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:The development of multidrug-resistant tuberculosis (MDR-TB) poses a considerable threat to tuberculosis control programmes in Nigeria. There is an increase in the prevalence of MDR-TB worldwide both among new tuberculosis cases as well as previously-treated ones. There is also a rise in transmission of resi...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201021666200226100242
更新日期:2020-01-01 00:00:00
abstract::Essential oils have increased interest as promising ingredients for novel pharmaceutical dosage forms. These oils are reported to provide synergistic effects of their active ingredients, in parallel with their biodegradable properties. In addition, essential oils may also have therapeutic effects in diabetes, inflamma...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/1389201016666150206111253
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Semaphorin 3B (SEMA3B) is characterized as a strong suppressing factor of the proliferation of cancerous cells and also by its anti-angiogenic effect. However, the knowledge on the changes in the expression profile of SEMA3B under the influence of cisplatin in endometrial cancer remains fragmented. The aim o...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201021666200514215839
更新日期:2020-01-01 00:00:00
abstract::The blood-brain barrier (BBB), which impedes drug penetration into the central nervous system, is composed of specific structures formed by brain capillary endothelial cells and sheathed by astrocytic end-feet through basement membrane. Many brain drug delivery strategies have focused on adsorptive-mediated transcytos...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920112803341851
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Bacteriophages are viruses, which are obligate parasites of specific bacteria for the completion of their lifecycle. Bacteriophages could be the possible alternative to antibioticresistant bacterial diseases. With this objective, extensive research in different fields is published which are discussed in this...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/1389201021666191217111156
更新日期:2020-01-01 00:00:00
abstract::The metastatic cascade and colonization remains a major challenge in clinical therapeutics. The formation of metastasis has many rate limiting steps. The expression of metastases initiation genes in primary tumors is driven by the need for cell motility, invasiveness, handling the shear stress in the vasculature and l...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920111798376996
更新日期:2011-11-01 00:00:00
abstract::Polyphenols are a widely distributed group of natural products found in fruits, vegetables, nuts, seeds, stems and flowers. Such compounds, especially dietary flavonoids and tannins, have been shown to exert antioxidant, antiinflammatory, anti-cancer and antibacterial effects and may have beneficial effects on human h...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920101504140825121142
更新日期:2014-01-01 00:00:00
abstract::TGF-β isoforms (TGF-β1, -β2, and -β3) are secreted signaling ligands that stimulate the expression of protein components of the extracellular matrix, regulate the growth and differentiation of epithelial cells, modulate immune cell function, and play roles in the development of several essential organs, including the ...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920111798808383
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Carbon nanotubes (CNTs) have been considered highly successful and proficient in terms of their mechanical, thermal and electrical functionalization and biocompatibility. In regards to their significant extent in bone regeneration, it has been determined that CNTs hold the capability to endure clinical appli...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201018666170127105555
更新日期:2017-01-01 00:00:00
abstract::The accidental or intentional release of plutonium or americium can cause acute and long term adverse health effects if they enter the human body by ingestion, inhalation, or injection. These effects can be prevented by rapid removal of these radionuclides by chelators such as calcium or zinc diethylenetriaminepentaac...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920112802273308
更新日期:2012-08-01 00:00:00
abstract::Levels of high density lipoprotein (HDL) and its major protein component, apolipoprotein (apo) A-I, are strongly inversely correlated to risk of atherosclerosis and other vascular diseases. A number of properties of apo A-I may contribute to this protection, including removal of cholesterol from peripheral tissues to ...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920106777950834
更新日期:2006-08-01 00:00:00
abstract::The idea of cancer stem cell (CSC) has recently moved to the forefront of cancer research. There is still a lack of a widespread consensus on their description and definition. ,The increasing literature on CSCs has compelled researchers worldwide to rewrite the natural history of cancer including those cells as princi...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920111794295756
更新日期:2011-02-01 00:00:00
abstract::Gene therapy is a potential treatment for severe inherited disorders for which there is little hope of finding a conventional cure. These include lethal diseases like immunodeficiencies and metabolic disorders, and non lethal conditions associated to poor quality of life and life-long symptomatic treatments, like musc...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920112802273119
更新日期:2012-08-01 00:00:00
abstract::It is now widely believed that tumors originate from normal cells as a result of accumulated genetic/epigenetic changes. These alterations affect the signaling pathways at transcriptional and post-transcriptional level that drive cells into uncontrolled cell division, growth, and migration. Recent advancement of molec...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920108785915102
更新日期:2008-10-01 00:00:00
abstract::Understanding and consequently treating neuropathic pain effectively is a challenge for modern medicine, as unlike inflammation, which can be controlled relatively well, chronic pain due to nerve injury is refractory to most current therapeutics. Here we define a target pathway for a new class of analgesics, tetrahydr...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920111798357393
更新日期:2011-10-01 00:00:00
abstract::With eleven therapeutic antibodies approved worldwide and many more in clinical trials, research on antibody engineering has continued to escalate and expand. This review covers recent progress in generation of antibodies by ex vivo methods, systems for screening these, and the quest for higher affinity, more stable, ...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/1389201023378256
更新日期:2002-09-01 00:00:00
abstract:BACKGROUND:Burn is still an important global public health challenge. Wound colonization of antibiotic resistant bacteria such as Acinetobacter baumannii can lead to high morbidity and mortality in burn patients. The aim of this study was to evaluate the inhibitory effect of tazobactam on efflux pump, which can cause a...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201021666200220121122
更新日期:2020-01-01 00:00:00
abstract::Beyond their originally sole mechanical function, current drug-eluting stents (DES) implement the concept of local drug delivery for the re-opening of stenotic arterial vessels, and for prevention of in-stent restenosis as one of the major limitations of conventional bare metal stents (BMS). Current DES consist of a p...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:
更新日期:2013-01-01 00:00:00
abstract::As sessile and filter-feeding metazoans, marine sponges represent an ecologically important and highly diverse component of marine benthic communities throughout the world. It has been suggested that marine sponges are hosts to many microorganisms which can constitute up to 40-60% of its biomass. Recently, sponges hav...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/1389201015666140711115033
更新日期:2014-01-01 00:00:00
abstract::Melanogenesis is simply defined as production of melanin in melanosomes by melanocytes through a complex process. Melanin, a pigment derived from L-tyrosine, comes into two forms, namely eumelanin (brownish to black) and pheomelanin (red to yellow). Melanin synthesis starts via the hydroxylation of L-tyrosine to L-3,4...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1386207323666201211102233
更新日期:2020-12-10 00:00:00
abstract::Mammalian cells are involved in a range of biotechnological applications and more recently have been increasingly exploited in regenerative medicine. Critical to successful applications involving mammalian cells are their long-term storage and transport, for which cryopreservation in liquid nitrogen is the most freque...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201017666151029105941
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Large-scale population studies showed that the SNP rs1764391 of Connexin37 gene also known as Cx37 gene may play a pivotal role in the occurrence and development of acute myocardial infarction (AMI). Published results, however, are highly controversial. OBJECTIVE:This study aimed to examine the association ...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201019666191003150015
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Epithelial-mesenchymal transition (EMT) is a molecular reprogramming that leads to an increased ability to migrate, which can promote invasion and metastasis. EMT can be initiated in response to the activity of signaling pathways such as Wnt as well as miRNAs. OBJECTIVE:The aim of the study was to determine...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201021666201218125900
更新日期:2020-12-18 00:00:00
abstract:BACKGROUND:The pregnancy pathology preeclampsia is still among the leading causes of maternal and perinatal morbidity and mortality. At the same time, its etiology is far from being identified and remains obscure in a number of facets. A number of hypotheses have been developed to explain the altered interplay between ...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/1389201019666180427110547
更新日期:2018-01-01 00:00:00
abstract::Lipid nanocapsules (LNCs) were designed more than 15 years ago to deliver lipophilic drugs to cells with non toxic excipients by mimicking lipoproteins. During the last 5 years these promising nanocarriers were re-designed to deliver nucleic acids to cancer cells. This short review sums up the features of LNCs and des...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/1389201017666160401145206
更新日期:2016-01-01 00:00:00
abstract::Nitric oxide (NO) participates in the control of the cardiovascular system where two constitutive isoforms of NO-synthase were discovered: endothelial and neuronal. Both isoforms were observed in various cells, however, endothelial NO-synthase is predominantly present in the endothelium. Injury of the endothelium dist...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/138920111798280992
更新日期:2011-09-01 00:00:00
abstract::The purpose of this review article is to describe the history of photodynamic therapy (PDT), its current medical applications, the mechanism of action, contraindications of the method, and different types of photosensitizers used. The second part of the article deals with applications for gastrointestinal diseases. Th...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章,评审
doi:10.2174/1389201043376805
更新日期:2004-08-01 00:00:00
abstract:BACKGROUND:Terminalia arjuna (TA) has been reported and explored traditionally for its cardiotonic properties while the mechanism of antihypertensive effect of TA has not been clearly reported. METHOD:The oxidative stress is a major cause for hypertension, hence different extracts of TA having variable marker yield we...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201020666190222185209
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Herein, we report the biosynthesis procedure to prepare silver nanoparticles as reduction and capping agents with the aqueous plant extract of Perovskia abrotanoides. METHODS:The therapeutic application of silver nanoparticles entirely depends on the size and shape of the nanoparticles therefore, their cont...
journal_title:Current pharmaceutical biotechnology
pub_type: 杂志文章
doi:10.2174/1389201020666190618121218
更新日期:2020-01-01 00:00:00