Abstract:
:Structural multitude of nucleic acids serves basis for its multiple merits and applications. During structural transitions, significant to perform respective cellular functions, these DNA forms can vary from the single stranded to multi-stranded species. Hence, beyond the image of a monotonous DNA double-helix, there is now increasing interest in other polymorphic/ multi-stranded forms, the roles they may play in vivo and their potential use in therapeutics. Distinct guanine-rich nucleic acid sequences readily form a structurally diverse four-stranded architecture called G-quadruplexes. In addition to their presence at physical ends of chromosomes called telomeres, occurrence of these structural motifs in the upstream promoter regions of a number of genes, oncogenes and near transcription start sites, highlights that G-quadruplexes are involved in regulation of gene expression. Cancer cells typically possess shorter telomeres and have telomerase activity greatly exceeding that of normal cells. These differences create an opportunity to use anticancer therapies targeting telomerase and telomeres. The ability of small molecules to interact with and presumably stabilize G-quadruplex structures as a means of inhibiting telomerase has been a major drug design effort. Ligands, capable of interacting with four-stranded G-quadruplex have been generated. The discovery of proteins including transcription factors, recognizing G-quadruplexes, and conferring stabilization or unfolding them in biological systems, again makes G-quadruplexes, biologically pertinent structures. This review is an attempt to summarize the rapidly evolving literature exploring the amazing polymorphism of G-quadruplexes, and understanding their structure-specific-recognition and biological relevance, keeping in mind that G-tetraplexes are not only important drug targets, but may also act as gene regulatory elements. A pertinent detail of the challenges towards the rational design of structure-specific novel drugs has also been discussed.
journal_name
Curr Mol Medjournal_title
Current molecular medicineauthors
Kaushik M,Kaushik S,Bansal A,Saxena S,Kukreti Sdoi
10.2174/156652411798062421subject
Has Abstractpub_date
2011-12-01 00:00:00pages
744-69issue
9eissn
1566-5240issn
1875-5666pii
BSP/CMM/E-Pub/00140journal_volume
11pub_type
杂志文章,评审abstract::Skin is a complex tissue composed of two very different compartments -- the continuously renewing epidermis made up mostly by keratinocytes and the underlying matrix-rich dermis with the resting fibroblasts as its major cellular components. Both compartments are tightly interconnected and a paracrine mutual interactio...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524053586644
更新日期:2005-03-01 00:00:00
abstract::Although surgery and radiotherapy are highly efficient in local tumor control, distal metastases and tumor recurrence often limit therapeutic outcome. It is becoming progressively more evident that curative tumor therapy depends on the presence and maintenance of an intact immune system which has the capacity to elici...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652412803306666
更新日期:2012-11-01 00:00:00
abstract::A major benefit of the genomics revolution in biomedical research has been the establishment of transcriptome analysis as an enabling technology in the drug development process. Nowhere in the realm of drug development has the expectation of the impact of transcriptome analysis been greater than in the area of pre-cli...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524053152825
更新日期:2005-02-01 00:00:00
abstract::The purpose of this review is to provide a concise overview of developments over the last 15 years in the field of laboratory tests in human medicine that are based on the detection of alterations in the glycan part of glycoconjugates. We show how glycosylation-based diagnostic testing is widespread in the current cli...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652407780831629
更新日期:2007-06-01 00:00:00
abstract::Pancreatic and duodenal homeobox-1 (PDX-1) is a homeodomain-containing transcription factor that plays a critical role in pancreatic development, β-cell differentiation, maintenance of normal β-cell function and tumorigenesis. PDX-1 is subjected to extensive post-translational modifications for its stability, subcellu...
journal_title:Current molecular medicine
pub_type: 杂志文章
doi:
更新日期:2013-03-01 00:00:00
abstract::The ocular lens is a non-vascular and non-innervated transparent organ that plays an important role in vision processing. This unique organ is derived from the embryonic ectoderm of the brain region through a complicated differentiation process in which apoptosis plays a key role. First, when the committed ectoderm be...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652410793937741
更新日期:2010-12-01 00:00:00
abstract::Prolylcarboxypeptidase isoform 1 (PRCP1) is capable of regulating numerous autocrines and hormones, such as angiotensin II, angiotensin III, αMSH1-13, and DesArg(9) bradykinin. It does so by cleaving a C-terminal PRO-X bond. Recent work also indicates that the human PRCP1 activates plasma prekallikrein (PK) to kallikr...
journal_title:Current molecular medicine
pub_type: 杂志文章
doi:10.2174/1566524014666141015153519
更新日期:2014-01-01 00:00:00
abstract::Carcinoma-associated fibroblasts (CAFs) are activated fibroblasts during development of several cancer types, and therefore emerge as an attractive therapeutic target for cancer therapy. Drugs such as PT-100 and sibrotuzumab that block the functions of CAFs have already been in clinical trials. However, these drugs ex...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524018666171205113959
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:In vertebrates, cilium is crucial for Hedgehog signaling transduction. Forkhead box transcriptional factor FoxF1 is reported to be associated with Sonic Hedgehog (Shh) signaling in many cases. However, the role of FoxF1 in cilium remains unknown. Here, we showed an essential role of FoxF1 in the regulation o...
journal_title:Current molecular medicine
pub_type: 信件
doi:10.2174/1566524019666190405115420
更新日期:2019-01-01 00:00:00
abstract::Bone marrow-derived mesenchymal stem cells (BMSCs) can be recruited to tumor sites and integrate into the stroma of tumors. When co-cultured with BMSCs, otherwise weakly metastatic nasopharyngeal carcinoma cells (NPC) showed improved metastatic ability. BMSCs in the tumor environment displayed the characteristics of m...
journal_title:Current molecular medicine
pub_type: 杂志文章
doi:10.2174/1566524014666140724102301
更新日期:2014-01-01 00:00:00
abstract::Diabetic retinopathy (DR) is one of the leading causes of blindness in the working population worldwide. Vascular leakage, angiogenesis and neuronal degeneration are key features of DR. Current effective interventions for DR include treatment of systemic risk factors such as elevated blood glucose, blood pressure and ...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524014666140128114414
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:The phenotypic severity of β-thalassemia is highly modulated by three genetic modifiers: β-globin (HBB) mutations, co-inheritance of α-thalassemia and polymorphisms in the genes associated with fetal haemoglobin (HbF) production. This study was aimed to evaluate the effect of HbF related polymorphisms mainly...
journal_title:Current molecular medicine
pub_type: 临床试验,杂志文章
doi:10.2174/1566524018666181004121604
更新日期:2018-01-01 00:00:00
abstract::Cholesterol is a chameleon bio-molecule in cellular multiplex. It acts as a prelate in almost every cellular compartment with its site specific characteristics viz. regulation of structural veracity and scaffold fluidity of bio-membranes, insulation of electrical transmission in nerves, controlling of genes by making ...
journal_title:Current molecular medicine
pub_type: 杂志文章
doi:10.2174/1566524020666200413112030
更新日期:2020-01-01 00:00:00
abstract::The role of mitochondrial DNA (mtDNA) variant 16189T>C in type 2 diabetes mellitus (T2DM) remains hotly debated in the past decade. If mutation 16189T>C indeed posed a risk to T2DM, as echoed by some recent studies, correlation between this mutation and disease should be observed when carrying out a systematical study...
journal_title:Current molecular medicine
pub_type: 杂志文章
doi:10.2174/1566524014666141202161326
更新日期:2014-01-01 00:00:00
abstract::HMGB1/Amphoterin is a ubiquitous, highly conserved DNA-binding protein that can be also released to the extracellular space by various cell types. Extracellular HMGB1 regulates migratory responses of several cell types through binding to RAGE that communicates with the cytoskeleton to regulate cell motility. HMGB1-ind...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652407783220750
更新日期:2007-12-01 00:00:00
abstract::The unexpected encounter between the fields of HIV and chemokines has opened new perspectives for understanding the mechanisms of AIDS pathogenesis, as well as for the development of effective therapies and vaccines. Selected chemokines act as potent natural inhibitors of HIV infection, as they bind and downmodulate c...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524023361862
更新日期:2002-12-01 00:00:00
abstract::Bulimia nervosa (BN) and Anorexia Nervosa (AN) are currently classified as eating disorders (ED). Both disorders are the product of complex interaction between physiological and psychological and social processes; they are characterized by abnormal eating behavior. However, patients with BN differ from AN in their nut...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524033479762
更新日期:2003-06-01 00:00:00
abstract::A framework was developed to provide an integrated view of mycobacterial growth and its regulation. The topics reviewed include the properties of cell cultures and their relation to properties of individual cells, cell sizes and macromolecular compositions, uptake of nutrients through the cell envelope, protein biosyn...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652407780598584
更新日期:2007-05-01 00:00:00
abstract::Mucolipidosis Type IV (MLIV) is a lysosomal storage disorder that is characterized by severe neurologic and ophthalmologic abnormalities. It is a progressive disease that usually presents during the first year of life with mental retardation, corneal opacities, and delayed motor milestones. First described in 1974, ML...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524023362276
更新日期:2002-08-01 00:00:00
abstract::Autophagy is a bulk cytosolic degradative process which in the last few years has become a key pathway for the advancement of molecular medicine. Autophagy (cellular self-eating) has several implications in human disorders involving accumulation of cytosolic protein aggregates such as Alzheimer, Parkinson, Huntington ...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652408783769634
更新日期:2008-03-01 00:00:00
abstract::Non-alcoholic fatty liver disease (NAFLD) is a clinico-pathologic spectrum of conditions ranging from simple steatosis to nonalcoholic steatohepatitis (NASH). Although simple or bland steatosis follows a relatively benign clinical course, NASH can potentially progress to cirrhosis (approximately 10 to 15 percent) and ...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652410790963321
更新日期:2010-03-01 00:00:00
abstract::Although it has been known for long time that atherosclerosis is associated with lipid deposition, only recently it has been accepted that the plasmatic concentration of cholesterol, especially LDL cholesterol, is a risk factor for atherosclerosis. However, chemically modified LDL, but not native LDL, is able to induc...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524023362177
更新日期:2002-09-01 00:00:00
abstract:PURPOSE:Protein sumoylation is a well established regulatory mechanism to control many cellular processes such as chromatin structure dynamics, transcriptional regulation of gene expression, cell proliferation and differentiation, cell transformation and carcinogenesis, autophagy and senescence. In the vertebrate visio...
journal_title:Current molecular medicine
pub_type: 杂志文章
doi:10.2174/1566524019666190112143636
更新日期:2018-01-01 00:00:00
abstract:OBJECTIVE:To detect mutations of trypsinogen gene (PRSS1) in patients with autoimmune pancreatitis (AIP) and to determine the underlying pathogenesis. METHODS:DNA sequencing was used to detect full-length of PRSS1, cystic fibrosis transmembrane conductance regulator (CFTR), and pancreatic secretory trypsin inhibitor (...
journal_title:Current molecular medicine
pub_type: 杂志文章
doi:10.2174/1566524013666131118114432
更新日期:2014-03-01 00:00:00
abstract::There is growing concern that gastrointestinal exposure to particles is associated with increased risk of toxicity to internal organs and carcinogenicity. The mechanism of action is related to particle-induced oxidative stress and oxidation of DNA. Observations from animal models indicate that gastrointestinal exposur...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652412800792624
更新日期:2012-07-01 00:00:00
abstract::Citrate is one of the major substrates for intracellular metabolism. The extracellular level of citrate is stable in blood but varies locally, with slightly increased levels in brain and high levels in prostate. Recent metabolomics research suggests that citrate level is a potential harbinger of different pathophysiol...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524016666151123104855
更新日期:2015-01-01 00:00:00
abstract::Spider venom is a large pharmacological repertoire containing many biologically active peptides, which may have a potent therapeutic implication. Here we investigated a peptide toxin, named lycosin-I, isolated from the venom of the spider Lycosa singoriensis. In contrast to most spider peptide toxins adopting inhibito...
journal_title:Current molecular medicine
pub_type: 杂志文章
doi:10.2174/156652412803833643
更新日期:2012-12-01 00:00:00
abstract::The world is aging and we must face the challenges that this brings. One of the reasons for the increasing aging of the world's population is the increase in life expectancy and, since we live longer, it is of paramount importance to live well and to prevent age-associated diseases. In this way, it is crucial to impro...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524018666180907162955
更新日期:2018-01-01 00:00:00
abstract::Extracellular matrices (ECMs) are dynamic structures that provide cells not only with a structural support but, importantly, exhibit significant functional roles in the control of key cellular events such as adhesion, migration, proliferation, differentiation, and survival. In tumors, matrix effectors such as proteogl...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/156652412802480943
更新日期:2012-09-01 00:00:00
abstract::Immune tolerance can be induced by numerous methods. This review article aims to draw lines of similarity and contrast between two unique models of immune tolerance, namely Anterior Chamber Associated Immune Deviation (ACAID) and Nickel-induced oral tolerance. ACAID is an immune tolerance model that leads to the gener...
journal_title:Current molecular medicine
pub_type: 杂志文章,评审
doi:10.2174/1566524015666150114114602
更新日期:2015-01-01 00:00:00