MicroRNA gene that regulates lifespan found by Yale scientists

MicroRNAs (miRNAs), endogenous noncoding regulatory mRNAs of around 22-nucleotides long, have rapidly emerged as one of the key governors of the gene expression regulatory program in cells of varying species, with ever-increasing implications in the control of the fundamental biological processes and in the pathogenesis of adult humans. The exciting findings in this field have inspired us with a premise and a promise that miRNAs will ultimately be taken to the heart for therapy of human disease. While miRNAs have been considered potential therapeutic targets for disease treatment, it remains obscured what strategies we can use to achieve the goal. In the past years, we have witnessed a rapid evolving of many creative, innovative, inventive strategies and methodologies pertinent to...

This book provides comprehensive descriptions of the innovative strategies and methodologies for detecting miRNA expression, their application in miRNA research and their potential as tools for clinical diagnosis and prognosis.

It begins with the introduction of the overall concept and strategies of miRNA expression detection methods emphasizing the need of a wide variety of these methods to suit specific requirements for research and clinical examination in laboratories. In the following, each single chapter focuses on an independent, unique method of miRNA detection and is divided into five subsections: summary, introduction, protocol (including materials, instrument, reagent, and procedure), application and limitation, and reference. The development of the technique, the...

Since the publication of the first edition, lentivirus vector-based technologies, through in vitro and in vivo gene transfer in eukaryotic animal cells, continue to offer the most promising opportunities for curing genetic disorders, as well as cancer and infectious diseases. Lentivirus Gene Engineering Protocols, Second Edition reflects the spectacular progress made in the field with a set of cutting-edge methods contributed by highly respected scientists. Beginning with a thorough overview of the most recent lentivirus developments, the book continues with detailed protocols including sections on the advances in lentiviral vector technology, new lentiviral vector applications, involving transgenic human embryonic stem cells and fetal gene therapy among other topics, as well as the...

In the last few years the major effect that RNAi has had in invertebrate systems like C.elegans and drosophila is beginning to take hold in mammalian systems through both single gene knockdown experiments and genome-scale screens. In the next decade, there will no doubt be both notable successes and failures as we attempt to apply this genetic tool to various biological problems for the first time in academia and industry. Through the introduction of RNAi, mammalian systems have finally gained admittance to the pantheon of model genetic systems.

RNA interference has become a key method in the suppression of gene expression and the development of therapeutic agents, yet there is still the problem of delivery, stability, and the danger of off-target effects such as the silencing of unwanted genes and activation of innate immunity. In siRNA and miRNA Gene Silencing: From Bench to Bedside, expert researchers explore the most recent advances in siRNA design, expression, delivery, in vivo imaging, and methods to minimize siRNA’s unwanted effects and promote successful use in patients. As part of the highly successful Methods in Molecular Biology™ series, the chapters focus on their respective subjects with easy-to-use, up-to-date information, including several step-by-step laboratory protocols on topics such as new delivery...

New Findings Revolutionize Concepts of Gene Function

Endogenous small RNAs have been found in various organisms, including humans, mice, flies, worms, fungi, and bacteria. Furthermore, it’s been shown that microRNAs acting as cellular rheostats have the ability to modulate gene expression. In higher eukaryotes, microRNAs may regulate as much as 50 percent of gene expression.

Regulation of Gene Expression by Small RNAs brings together the pioneering work of researchers who discuss their work involving a wide variety of small RNA regulatory pathways in organisms ranging from bacteria to humans. In addition to exploring the biogenesis and processing of these regulatory RNAs, they also consider the functional importance of these pathways in host organisms. Assisting...

Gene Profiling in Drug Design provides insights from leaders in the pure sciences, biotechnology, and other arenas. It emphasizes the science that underpins gene profiling and drug development, and also includes clinical and ethical perspectives from experts in those fields. These explore the broadest health and social implications for this...