الصفحة 1
الصفحة 1
Molecular Genetics of Recombination
Genetic recombination is an important process involved in shaping the genetic make up of progeny. Increasingly, it has become evident that recombination is a DNA repair pathway crucial during DNA replication in vegetatively growing cells.
Genome integrity : Facets and perspectives
The volume begins with DNA replication and continues with replicative DNA repair and pleiotropic protein interactions. Examples of human diseases are included and the cellular responses to radiation and genotoxic stress affecting whole genomes are reviewed.
Free-Radical-Induced DNA Damage and Its Repair : A Chemical Perspective
Understanding of the molecular basis of DNA damage and its repair has increased dramatically in recent years, and substantial knowledge now exists concerning the products arising from free-radical attack on DNA. Free-radical DNA damage may lead to mutations, cancer, and cell death. Free radicals have various sources, notably ionizing radiation and oxidative stress. In radiotherapy for cancer and with some anticancer drugs, use is made of cell death by excessive DNA damage. The mechanisms leading to products of free-radical attack which have been studied in models and with small double-stranded DNA fragments are discussed in detail, and the basics of the underlying free-radical chemistry are dealt with in separate chapters.
DNA Repair and Human Disease
DNA Repair and Human Disease highlights the molecular complexities of a few well-known human hereditary disorders that arise due to perturbations in the fidelity of diverse DNA repair machineries.
DNA Methylation : Basic Mechanisms
The structural and functional importance of the correct patterns of DNA methylation in all parts of a mammalian genome is not well understood. The stability, inheritability, and developmental flexibility of these patterns point to a major role that these patterns appear to play in determining structure and function of the genome.
Chromatin Dynamics in Cellular Function
This volume includes timely reviews of several aspects of chromatin biology written by scientists at the forefront of this rapidly moving field. Topics covered include the structure and function of protein modules within chromatin-remodeling proteins, newly characterized histone modifications (methylation, ubiquitylation) and their functional consequences, transcription and histone dynamics, roles of chromatin remodeling factors in DNA replication and repair, and current models of nucleosome-remodeling mechanisms.
Chromatin and Disease
It is more evident now than ever before that dynamic organization of human genome into nucleoprotein structure, chromatin confers the unique regulatory mechanisms for most of the cellular phenomena, which include replication, transcription, DNA repair, recombination and also apoptosis. The dynamic nature of the chromatin is regulated by chromatin modifications (epigenetic alterations), remodeling, histone chaperones and functional interactions of different chromatin interacting n- histone proteins. Dysfunction of this highly inter connected machineries disturb the cellular homoeostasis, and thereby causes several diseases. As we advance in our knowledge of chromatin function and also disease mechanisms in more details, their causal relationship is becoming more evident. This has lead to the identification of chromatin function as target for new generation therapeutics.
Breast cancer chemosensitivity
In Breast Cancer Chemosensitivity, a group of world leading experts review critical aspects of resistance to systemic therapy in breast cancer patients. Beginning with a clinical overview of the problem Breast Cancer Chemosensitivity moves on to focus on the latest findings of molecular mechanisms of drug resistance. These include in-depth discussions on multidrug resistance by P-glycoprotein and the multidrug resistance protein family, resistance to therapeutic agent-induced apoptosis, cell cycle deregulation, deregulation of DNA repair, loss of tumor suppressor genes, integrin-mediated adhesion, insulin-like growth factors, epidermal growth factor, and ErbB2 in modulating breast cancer response to systemic therapy, especially, certain chemotherapeutic agents. Breast Cancer Chemosensitivity provides an example of using novel approaches for chemosensitization of breast cancer cells that gives readers an idea about the future direction in breast cancer treatment.
Bacteriophage therapy : a potential solution for antibiotic resistance crisis
For many years, humans have been fighting with bacteria, in a matter of fact, bacteria have been winning for the last decade, becoming resistant to every weapon we have; The antibiotics. In order to win the fight humans had to think of alternative ways, like viruses. There is a special type of viruses that have been in a war with bacteria for millenniums, Bacteriophages. Bacteriophages (or phages), the most abundant viral entity of the planet. On the basis of their unique characteristics and anti-bacterial property, phages are being the freshly evaluated taxonomically. Phages replicate inside the host either by lytic or lysogenic mode after infecting and using the cellular machinery of a bacterium. Phage became an important agent for combating pathogenic bacteria in clinical treatments and its related research gained momentum. However, due to recent rise of bacterial resistance on antibiotics, applications of phage (phage therapy) become an unavoidable option of research. In this dissertation, the advantage and limitations of Bacteriophages for use in humans will be discussed. Furthermore, this dissertation deals with recent development of its application in the areas of biotechnology.
