Abstract:
:Histone deacetylase inhibitors have generated significant interest as anti-cancer agents due to their ability to cause growth arrest, terminal differentiation and/ or apoptosis in carcinoma cells. Abbott entered this area after the serendipitous discovery of the biaryl hydroxamate A-161906 in a TGF beta mimetic screen and the subsequent identification of this compound as an inhibitor of selected HDACs. The complex biology of these enzymes became evident when cloning and expression of the HDACs demonstrated that they were present as multiprotein and, in some cases, multi-HDAC containing complexes in their active forms. This discovery suggested that any selectivity determinations would have to be considered in the context of these multi-protein/HDAC complexes. However, siRNA gene knockdown studies did demonstrate that reduction of the Class I HDACs resulted in a phenotype similar to that observed with small molecule HDAC inhibitors. Evaluation of the Abbott small molecule HDAC inhibitors utilized a Class I HDAC (HDAC 1/2) preparation and antiproliferation assays using HT1080 fibrosarcoma and MDA435 breast carcinoma cells. Characterization of several series of hydroxamic acids indicated that while many of these analogs possessed potent enzymatic and cellular activity, in general these compounds had unacceptable pharmacokinetic profiles and marginal antitumor effects. Replacement of the potentially labile hydroxamic acid moiety with a trifluoromethyl ketone or a ketooxazole gave measurable HDAC potency but only modest cellular and in vivo activity. However, hydroxamate replacement with an alpha-ketoamide moiety provided potent HDAC inhibitors (IC(50) values as low as 3 nM) with excellent cellular activity (IC50 values < 0.2 microM) and measurable anti-tumor activity in a flank tumor growth model.
journal_name
Curr Med Chemjournal_title
Current medicinal chemistryauthors
Curtin M,Glaser Kdoi
10.2174/0929867033456576subject
Has Abstractpub_date
2003-11-01 00:00:00pages
2373-92issue
22eissn
0929-8673issn
1875-533Xjournal_volume
10pub_type
杂志文章,评审abstract::Recent advances in endoscopic techniques such as capsule endoscopy have revealed that aspirin and other nonsteroidal antiinflammatory drugs (NSAIDs) often cause mucosal lesions not only in the upper gastrointestinal tract, but also in the small intestine in humans. Gastric and duodenal lesions caused by NSAIDs can be ...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986712803413980
更新日期:2012-01-01 00:00:00
abstract::The importance of organometallics can be noticed by their presence in all life organisms. The most known natural organometallic molecule is vitamin B12, a porphyrin containing a cobalt atom, useful for several enzymatic transformations. Based on the remarkable properties of this class of compounds, a new area of medic...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986710791859306
更新日期:2010-01-01 00:00:00
abstract::Photodynamic therapy (PDT) is a novel medical technique involving three key components: light, a photosensitizer molecule and molecular oxygen, which are essential to achieve the therapeutic effect. There has been great interest in the use of PDT in the treatment of many cancers and skin disorders. Upon irradiation wi...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867321666140826120300
更新日期:2014-01-01 00:00:00
abstract::Cellular signaling is regulated by several biochemical reactions, whose dynamics depends on changes in the fluxes of specific ligands through the containment barriers that are the biological membranes. The regulation of this complex dynamic equilibrium is mainly due to the activity of border proteins, that must be abl...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986710790980087
更新日期:2010-01-01 00:00:00
abstract::To date, many scientific attempts have been directed towards the development of experimental models for the identification of neuronal mechanisms evoking cardiovascular and hemodynamic dysfunctions. The spontaneously hypertensive rat (SHR), a genetic model of essential hypertension, has become a valuable rodent for th...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986712802429993
更新日期:2012-01-01 00:00:00
abstract::Potent enzyme inhibitors have long been recognized as powerful tools for assessing the physiological roles of enzymes and have led to the therapeutic drugs able to modulate their activities in vivo. However, to be valuable tools such inhibitors should be selective so that they do not interfere with other members of th...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867023371120
更新日期:2002-02-01 00:00:00
abstract:BACKGROUND:Chronic, degenerative diseases are often characterized by inflammation and aberrant angiogenesis. For these pathologies, including rheumatoid arthritis, cardiovascular and autoimmune diseases, cancer, diabetes, and obesity, current therapies have limited efficacy. OBJECTIVES:The validation of novel (chemo)p...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867324666170920144130
更新日期:2019-01-01 00:00:00
abstract::Fullerenes as a unique class of carbon allotropes have been studied extensively for their distinctive material properties and potential technological applications, including those in biology and medicine. Since a major focus in the latter has been on drug development and formulation, in this paper we highlight some re...
journal_title:Current medicinal chemistry
pub_type: 杂志文章
doi:10.2174/092986711795656225
更新日期:2011-01-01 00:00:00
abstract::Inflammation plays a critical role in the atherosclerotic process in various vascular beds, starting from endothelial dysfunction and counting all stages of plaque development. The significant contribution of inflammation in the initiation and progression of atherosclerosis has been documented over many years but its ...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
abstract::Serotonin (5-hydroxytryptamine, 5-HT) is one of the most attractive targets for medicinal chemists. Among 5-HTRs, the 5-HT(1A) subtype is the best studied and it is generally accepted that it is involved in psychiatric disorders such as anxiety and depression. Several structurally different compounds are known to bind...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867023371030
更新日期:2002-02-01 00:00:00
abstract::Inflammation is an initial response of the body to a harmful stimuli and it is achieved by the increased movement of leukocytes (especially granulocytes) from blood into injured tissues. It is required for healing wounds and infections. Despite their indispensable role in microbial killing, the inflammation reactions ...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867323666160607111806
更新日期:2016-01-01 00:00:00
abstract::Physalia physalis is a marine cnidarian from which high molecular weight toxins with hemolytic and neurotoxic effects have been isolated. In the present work, two novel toxins, PpV9.4 and PpV19.3 were purified from P. physalis by bioactive guideline isolation. It involved two steps of column chromatography, gel filtra...
journal_title:Current medicinal chemistry
pub_type: 杂志文章
doi:10.2174/092986712803833308
更新日期:2012-01-01 00:00:00
abstract::The new drug class of dipeptidyl peptidase-4 (DPP4) inhibitors has been widely accepted in the daily management of type 2 diabetes since its strategic advantages with regard to body weight, risk of hypoglycaemia, and beta cell survival. We have previously evaluated the theoretical implications of DPP4 inhibition given...
journal_title:Current medicinal chemistry
pub_type: 杂志文章
doi:10.2174/092986711797535290
更新日期:2011-01-01 00:00:00
abstract::Flavonoids are natural plant-derived polyphenolic compounds with various biological properties particularly in the cardiovascular system, including antiatherogenic, antioxidant, vasodilation, antihypertensive, and antiplatelet activities. These biological properties have been evaluated in several experimental and clin...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867323666151111143616
更新日期:2016-01-01 00:00:00
abstract::Chagas disease is an infectious tropical disease included within the group of neglected tropical diseases. Though historically endemic to Latin America, it has lately spread to high-income countries due to human migration. At present, there are only two available drugs, nifurtimox and benznidazole, approved for this t...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867326666191016114839
更新日期:2020-01-01 00:00:00
abstract::In the human brain several cell types are capable of initiating and amplifying a brain specific inflammatory response involving the synthesis of cytokines, prostaglandins and oxygen free radicals. In Alzheimer's disease (AD), signs of an inflammatory activation of microglia and astroglia are present inside and outside...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867023371292
更新日期:2002-01-01 00:00:00
abstract::HupA is a potent, reversible AChEI, which crosses the blood-brain barrier smoothly, and shows high specificity for AChE with a prolonged biological half-life. It has been approved as the drug for the treatment of AD in China, and marketed in USA as a dietary supplement. HupA has been the subject of investigations by a...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867033456747
更新日期:2003-11-01 00:00:00
abstract::Nature as a source of inspiration has been shown to have a great beneficial impact on the development of new computational methodologies. In this scenario, analyses of the interactions between a protein target and a ligand can be simulated by biologically inspired algorithms (BIAs). These algorithms mimic biological s...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986711795029573
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:The possibilities of treatment for oncological diseases are growing enormously in the last decades. Unfortunately, these developments have led to the onset of resistances with regards to the new treatments. This is particularly true if we face with the therapeutic field of Tyrosine Kinase Inhibitors (TKIs). ...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867325666180607092451
更新日期:2019-01-01 00:00:00
abstract::The calcium ion is quite possibly the single most pervasive signaling molecule used by living organisms for the purpose of communicating internal and external states. It differs from other messengers in that it is neither created nor destroyed, but just moved around inside and outside the cell via transporters, pumps ...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986712804143286
更新日期:2012-01-01 00:00:00
abstract::gammadelta T lymphocytes are involved in the defence from viral and mycobacterial infections; however they are also responsible for autoimmune reactions. Herein, we discuss the characteristics of these cells, focusing on the mechanism(s) underlying extravasation and tissue localization. We show that Vdelta1 and Vdelta...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986707782793835
更新日期:2007-01-01 00:00:00
abstract::In recent years several mutations and sequence polymorphisms of the glucocorticoid receptor gene have been described. The majority of mutations have been found in patients with a rare endocrinological abnormality, the glucocorticoid resistance syndrome. In addition, some sequence polymorphisms have been considered to ...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867043363749
更新日期:2004-12-01 00:00:00
abstract::Despite the protective role of diets rich in fruit plant polyphenols against some cancers and chronic degenerative and inflammatory diseases, insufficient emphasis has been placed on oral health. Numerous studies have aimed to ascertain the role of polyphenols in the prevention and treatment of oral diseases; however,...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986712799945012
更新日期:2012-01-01 00:00:00
abstract::Differentiation therapy of acute promyelocytic leukemia with all-trans retinoic acid represents the most successful pharmacological therapy of acute myeloid leukemia (AML). Numerous studies demonstrate that drugs that inhibit mechanistic target of rapamycin (mTOR) and activate AMP-kinase (AMPK) have beneficial effects...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
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更新日期:2019-01-01 00:00:00
abstract::Inosine 5'-monophosphate dehydrogenase (IMPDH) catalyzes the first committed step of guanosine 5'-monophosphate (GMP) biosynthesis, and thus regulates the guanine nucleotide pool, which in turn governs proliferation. Human IMPDHs are validated targets for immunosuppressive, antiviral and anticancer drugs, but as yet m...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986711795590129
更新日期:2011-01-01 00:00:00
abstract::Over the past few years, use of the genome-wide association study (GWAS) has made it possible to identify the primary genetic mechanisms of essential hypertension. GWAS results have helped identify many loci in or near genes that generally were not expected to be associated with blood pressure or essential hypertensio...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867321666141216124537
更新日期:2015-01-01 00:00:00
abstract::Akuammiline alkaloids are a family of monoterpene indole alkaloids of renewed medicinal interest. These bases act as ligands for a heterogeneous group of molecular targets and, consequently, display a wide variety of pharmacological activities. For example, pseudoakuammigine (2) exhibits opioid activity in vivo, echit...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867033457016
更新日期:2003-09-01 00:00:00
abstract::The discovery of anandamide as an endogenous ligand for the cannabinoid receptors has led to a resurgence of interest in the fatty acid amides. However, N-palmitoylethanolamine (PEA), a shorter and fully saturated analogue of anandamide, has been known since the fifties. This endogenous compound is a member of the N-a...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/0929867023370707
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND:The incidence of pancreatic cancer (PC) is rising in parallel with the deaths caused by this malignant disease largely due to limited improvement in current treatment strategies. In spite of aggressive PC research, for the past three decades, there has been no significant improvement in the five-year surviva...
journal_title:Current medicinal chemistry
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更新日期:2018-01-01 00:00:00
abstract::Fulvestrant is a novel endocrine therapy for breast cancer, with a unique structure and mode of action. It binds competitively to the oestrogen receptor (ER), with high affinity, and downregulates ER by functional blockade and increased turnover. Fulvestrant has reached the clinic via extensive pre-clinical and clinic...
journal_title:Current medicinal chemistry
pub_type: 杂志文章,评审
doi:10.2174/092986710790820633
更新日期:2010-01-01 00:00:00