Interactions of Dinuclear Transition Metal Compounds with DNA Nucleobases and Related Nitrogen Donor Ligands

Interactions of Dinuclear Transition Metal Compounds with DNA Nucleobases and Related Nitrogen Donor Ligands PDF Author: Kemal V. Catalan
Publisher:
ISBN:
Category : DNA replication
Languages : en
Pages : 468

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Interactions of Dinuclear Transition Metal Compounds with DNA Nucleobases and Related Nitrogen Donor Ligands

Interactions of Dinuclear Transition Metal Compounds with DNA Nucleobases and Related Nitrogen Donor Ligands PDF Author: Kemal V. Catalan
Publisher:
ISBN:
Category : DNA replication
Languages : en
Pages : 468

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Interactions of Dinuclear Transition Metal Compounds with DNA Nucleobases and Related Nitrogen Donor Ligands

Interactions of Dinuclear Transition Metal Compounds with DNA Nucleobases and Related Nitrogen Donor Ligands PDF Author: Kemal V. Catalan
Publisher:
ISBN:
Category : DNA replication
Languages : en
Pages : 354

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Interactions of Dinuclear Transition Metal Complexes with Amino Acids, Nucleotides, and DNA

Interactions of Dinuclear Transition Metal Complexes with Amino Acids, Nucleotides, and DNA PDF Author: Jennifer Simone Hess
Publisher:
ISBN:
Category : Amino acids
Languages : en
Pages : 400

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Metal-Ligand Interactions

Metal-Ligand Interactions PDF Author: N. Russo
Publisher: Springer Science & Business Media
ISBN: 940100191X
Category : Science
Languages : en
Pages : 595

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Book Description
In September 2002, a NATO-ASI was held in Cetraro (CS), Italy on the theme of "Metal-Ligand Interactions in Molecular-, Nano-, Micro-, and Macro-systems in Complex Environments". This event has followed the previous ones held in the same place in 1991, 1994 and 1998. In the present and the previous schools a broad interdisciplinary cross-section of experimental and theoretical researchers, interested in a better understanding of metal-ligand interactions from different viewpoints, was linked together to exchange experience, to review the state-of-the-art, to indicate new techniques and methods, to explore new fields and perspectives. Particular emphasis was given to the problems related with the crossing from molecular systems to nano-, macro-and micro-scale materials and to the effects of the environment on the properties of the molecular systems. The school was organized around lectures and special research seminares given by leading experts in the following fields: • metal clusters • inorganic complexes and materials • surface phenomena • adsorption and catalysis • organic and bio-inorganic systems • ab initio theory • density functional theory • classical and quantum dynamics This volume contains the formal lectures and selected contributed papers and describes the main aspects and problems tackled during the 12 days of the event.

Metal Complex - DNA Interactions

Metal Complex - DNA Interactions PDF Author: Nick Hadjiliadis
Publisher: Wiley-Blackwell
ISBN: 1405194103
Category : Science
Languages : en
Pages : 544

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Book Description
Metal ions and metal complexes have long been recognized as critically important components of nucleic acid chemistry, both in regulation of gene expression and as promising therapeutic agents. Understanding how metal complexes interact with DNA has become an active research area at the interface between chemistry, molecular biology and medicine. Metal Complex - DNA Interactions provides a comprehensive overview of this increasingly diverse field, presenting recent developments and the latest research with particular emphasis on metal-based drugs and metal ion toxicity. The text is divided into four parts: Basic Structural and Kinetic Aspects: includes chapters on sequence-selective metal binding to DNA and thermodynamic models. Medical Applications: focuses on anticancer platinum drugs, including discussions on DNA repair in antitumor effects of platinum drugs and photo-dynamic therapy. DNA-Recognition - Nucleases and Sensor: describes probes for DNA recognition, artificial restriction agents, metallo-DNAzymes for metal sensing applications and metal ion dependent catalysis in nucleic acid enzymes. Toxicological Aspects: deals with structural studies of mercury–DNA interactions, chromium-induced DNA damage and repair, and the effect of arsenic and nickel on DNA integrity. This book will be a valuable resource for academic researchers and professionals from a range of pharmaceutical and chemical industries, particularly those involved in the development of new and less toxic anticancer metallo-drugs, and in the field of environmental and toxicological chemistry.

American Doctoral Dissertations

American Doctoral Dissertations PDF Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 816

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Artificial Nucleases

Artificial Nucleases PDF Author: Marina A. Zenkova
Publisher: Springer Science & Business Media
ISBN: 9783540201120
Category : Medical
Languages : en
Pages : 330

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Book Description
The development of agents capable of cleaving RNA and DNA has attracted considerable attention from researchers in the last few years, because of the immediate and very important applications they can find in the emerging fields of biotechnology and pharmacology. There are essentially two classes of these agents - nucleases that occur naturally inside cells and synthetically produced artificial nucleases. The first class includes protein enzyme nucle ases and catalytic RNA structured ribozymes that perform cleavage of the phosphodiester bonds in nucleic acids according to a hydrolytic pathway in the course of different biochemical processes in the cell. A different pathway is used by some antibiotics which cleave DNA via redox-based mechanisms resulting in oxidative damage of nucleotide units and breakage of the DNA backbone. The above molecules are indispensable tools for manipulating nucleic acids and processing RNA; DNA-cleaving antibiotics and cytotoxic ribonucleases have demonstrated utility as chemotherapeutic agents. The second class, artificial nucleases, are rationally designed to imitate the active centers of natural enzymes by simple structures possessing minimal sets of the most important characteristics that are essential for catalysis. A dif ferent approach, in vitro selection, was also used to create artificial RNA and DNA enzymes capable of cleaving RNA. Being less efficient and specific as compared to the natural enzymes, the primitive mimics are smaller and robust and can function in a broad range of conditions.

Reactions of Dinuclear Transition Metal Antitumor Complexes with the DNA Model Nucleobase 9-ethylguanine

Reactions of Dinuclear Transition Metal Antitumor Complexes with the DNA Model Nucleobase 9-ethylguanine PDF Author: Kemal Vatansever Catalan
Publisher:
ISBN:
Category : Cancer
Languages : en
Pages : 204

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Gold Chemistry

Gold Chemistry PDF Author: Fabian Mohr
Publisher: John Wiley & Sons
ISBN: 3527320865
Category : Science
Languages : en
Pages : 425

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Book Description
Written by world-class authors, this most recent major book on the topic highlights new and current trends as well as future directions. It is comprehensive in its scope, covering all aspects of gold chemistry -- from homogeneous to heterogeneous catalysis, from supramolecular assemblies to sensors and medicinal applications. The result is an invaluable work for both organic and inorganic chemists working in universities and industry, as well as material scientists.

Cisplatin

Cisplatin PDF Author: Bernhard Lippert
Publisher: John Wiley & Sons
ISBN: 9783906390208
Category : Medical
Languages : en
Pages : 628

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Book Description
30 years after its discovery as an antitumor agent, cisplatin represents today one of the most successful drugs in chemotherapy. This book is intended to reminisce this event, to take inventory, and to point out new lines of development in this field. Divided in 6 sections and 22 chapters, the book provides an up-to-date account on topics such as - the chemistry and biochemistry of cisplatin, - the clinical status of Pt anticancer drugs, - the impact of cisplatin on inorganic and coordination chemistry, - new developments in drug design, testing and delivery. It also includes a chapter describing the historical development of the discovery of cisplatin. The ultimate question - How does cisplatin kill a cell? - is yet to be answered, but there are now new links suggesting how Pt binding to DNA may trigger a cascade of cellular reactions that eventually result in apoptosis. p53 and a series of damage recognition proteins of the HMG-domain family appear to be involved. The book addresses the problem of mutagenicity of Pt drugs and raises the question of the possible relevance of the minor DNA adducts, e.g. of interstrand cross-links, and the possible use of trans-(NH3)2Pt(II)-modified oligonucleotides in antisense and antigene strategies. Our present understanding of reactions of cisplatin with DNA is based upon numerous model studies (from isolated model nucleobases to short DNA fragments) and application of a large body of spectroscopic and other physico-chemical techniques. Thanks to these efforts there is presently no other metal ion whose reactions with nucleic acids are better understood than Pt. In a series of chapters, basic studies on the interactions of Pt electrophiles with nucleobases, oligonucleotides, DNA, amino acids, peptides and proteins are reported, which use, among others, sophisticated NMR techniques or X-ray crystallography, to get remarkable understanding of details on such reactions. Reactivity of cisplatin, once bound to DNA and formerly believed to be inert enough to stay, is an emerging phenomenon. It has (not yet) widely been studied but is potentially extremely important. Medicinal bioinorganic chemistry - the role of metal compounds in medicine - has received an enormous boost from cisplatin, and so has bioinorganic chemistry as a whole. There is hardly a better example than cisplatin to demonstrate what bioinorganic chemistry is all about: The marriage between classic inorganic (coordination) chemistry and the other life sciences - medicine, pharmacy, biology, biochemistry. Cisplatin has left its mark also on areas that are generally considered largely inorganic. The subject of mixed-valance Pt compounds is an example: From the sleeping beauty it made its way to the headlines of scientific journals, thanks to a class of novel Pt antitumor agents, the so-called "platinum pyrimidine blues". In the aftermath diplatinum (III) compounds were recognized and studies in large numbers, and now an organometalic chemistry of these diplatinum (III) species is beginning to emerge. The final section of the book is concerned with new developments such as novel di- and trinuclear Pt(II) drugs with DNA binding properties different from those of cisplatin, with orally active Pt(IV) drugs which are presently in clinical studies, and with attempts to modify combinatorial chemistry in such a way that it may become applicable to fast screening of Pt antitumor drugs. The potential of including computational methods in solving questions of Pt-DNA interactions is critically dealt with in the concluding chapter.