Abstract:
:The reorganization of metabolic pathways in cancer facilitates the flux of carbon and reducing equivalents into anabolic pathways at the expense of oxidative phosphorylation. This provides rapidly dividing cells with the necessary precursors for membrane, protein and nucleic acid synthesis. A fundamental metabolic perturbation in cancer is the enhanced synthesis of fatty acids by channeling glucose and/or glutamine into cytosolic acetyl-CoA and upregulation of key biosynthetic genes. This lipogenic phenotype also extends to the production of complex lipids involved in membrane synthesis and lipid-based signaling. Cancer cells display sensitivity to ablation of fatty acid synthesis possibly as a result of diminished capacity to synthesize complex lipids involved in signaling or growth pathways. Evidence has accrued that phosphatidylcholine, the major phospholipid component of eukaryotic membranes, as well as choline metabolites derived from its synthesis and catabolism, contribute to both proliferative growth and programmed cell death. This review will detail our current understanding of how coordinated changes in substrate availability, gene expression and enzyme activity lead to altered phosphatidylcholine synthesis in cancer, and how these changes contribute directly or indirectly to malignant growth. Conversely, apoptosis targets key steps in phosphatidylcholine synthesis and degradation that are linked to disruption of cell cycle regulation, reinforcing the central role that phosphatidylcholine and its metabolites in determining cell fate.
journal_name
Crit Rev Biochem Mol Bioljournal_title
Critical reviews in biochemistry and molecular biologyauthors
Ridgway NDdoi
10.3109/10409238.2012.735643subject
Has Abstractpub_date
2013-01-01 00:00:00pages
20-38issue
1eissn
1040-9238issn
1549-7798journal_volume
48pub_type
杂志文章,评审abstract::Regulation of eukaryotic gene expression is far more complex than one might have imagined 30 years ago. However, progress towards understanding gene regulatory mechanisms has been rapid and comprehensive, which has made the integration of detailed observations into broadly connected concepts a challenge. This review a...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230902858785
更新日期:2009-06-01 00:00:00
abstract::RNA helicases represent a large family of proteins that have been detected in almost all biological systems where RNA plays a central role. They are ubiquitously distributed over a wide range of organisms and are involved in nuclear and mitochondrial splicing processes, RNA editing, rRNA processing, translation initia...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409239891204233
更新日期:1998-01-01 00:00:00
abstract::Small regulatory RNAs can modify the activity of proteins and the stability and translation of mRNAs. They have now been found in a wide range of organisms, and can play previously unsuspected critical regulatory roles. The bacterial small RNAs include two major classes. The largest family(with at least 20 members in ...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230590918702
更新日期:2005-03-01 00:00:00
abstract::The discovery that SRA RNA can function as a nuclear receptor (NR) coactivator resulted in a fundamental change in the perception of how NRs and their coregulators may regulate hormone signaling pathways. The subsequent identification of molecules capable of binding SRA, including SHARP, p68, and more recently SLIRP, ...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230802661719
更新日期:2009-01-01 00:00:00
abstract::The eukaryotic MCM2-7 complex is recruited onto origins of replication during the G1 phase of the cell cycle and acts as the main helicase at the replication fork during the S phase. Over the last few years a number of structural reports on MCM proteins using both electron microscopy and protein crystallography have b...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230903186012
更新日期:2009-09-01 00:00:00
abstract::As we learn more about the biology of the Toll-like receptors (TLRs), a wide range of molecules that can activate this fascinating family of pattern recognition receptors emerges. In addition to conserved pathogenic components, endogenous danger signals created upon tissue damage are also sensed by TLRs. Detection of ...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2015.1033511
更新日期:2015-01-01 00:00:00
abstract::Type 1 protein phosphatases (PP-1) comprise a group of widely distributed enzymes that specifically dephosphorylate serine and threonine residues of certain phosphoproteins. They all contain an isoform of the same catalytic subunit, which has an extremely conserved primary structure. One of the properties of PP-1 that...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409239209082564
更新日期:1992-01-01 00:00:00
abstract::The mevalonate-isoprenoid-cholesterol biosynthesis pathway plays a key role in human health and disease. The importance of this pathway is underscored by the discovery that two major isoprenoids, farnesyl and geranylgeranyl pyrophosphate, are required to modify an array of proteins through a process known as protein p...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409238.2018.1458070
更新日期:2018-06-01 00:00:00
abstract::Adaptive mutation is a generic term for processes that allow individual cells of nonproliferating cell populations to acquire advantageous mutations and thereby to overcome the strong selective pressure of proliferation-limiting environmental conditions. Prerequisites for an occurrence of adaptive mutation are that th...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230701507773
更新日期:2007-07-01 00:00:00
abstract::Fibronectin is a large vertebrate glycoprotein that is found in soluble and insoluble forms and involved in diverse processes. Protomeric fibronectin is a dimer of subunits, each of which comprises 29-31 modules - 12 type I, two type II and 15-17 type III. Plasma fibronectin is secreted by hepatocytes and circulates i...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409238.2016.1184224
更新日期:2015-07-01 00:00:00
abstract::Matrix metalloproteinases (MMPs) constitute a family of more than 20 endopeptidases. Identification of specific matrix and non-matrix components as MMP substrates showed that, aside from their initial role as extracellular matrix modifiers, MMPs play significant roles in highly complex processes such as the regulation...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230701340019
更新日期:2007-05-01 00:00:00
abstract::We know of three routes that organisms have evolved to synthesize complex organic molecules from CO2: the Calvin cycle, the reverse tricarboxylic acid cycle, and the reductive acetyl-CoA pathway. This review describes the enzymatic steps involved in the acetyl-CoA pathway, also called the Wood pathway, which is the ma...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409239109114070
更新日期:1991-01-01 00:00:00
abstract::Every type of nucleic acid in cells may undergo some kind of post-replicative or post-transcriptional chemical modification. Recent evidence has highlighted their importance in biology and their chemical complexity. In the following pages, we will describe new discoveries of modifications, with a focus on tRNA and mRN...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章
doi:10.1080/10409238.2020.1818685
更新日期:2020-12-01 00:00:00
abstract::Eukaryogenesis, the origin of the eukaryotic cell, represents one of the fundamental evolutionary transitions in the history of life on earth. This event, which is estimated to have occurred over one billion years ago, remains rather poorly understood. While some well-validated examples of fossil microbial eukaryotes ...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2013.821444
更新日期:2013-07-01 00:00:00
abstract::Telomere DNA-binding proteins protect the ends of chromosomes in eukaryotes. A subset of these proteins are constructed with one or more OB folds and bind with G+T-rich single-stranded DNA found at the extreme termini. The resulting DNA-OB protein complex interacts with other telomere components to coordinate critical...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2011.609295
更新日期:2011-10-01 00:00:00
abstract::The purpose of this review is to provide an analysis of the latest developments on the functions of the carbon catabolite-repression 4-Not (Ccr4-Not) complex in regulating eukaryotic gene expression. Ccr4-Not is a nine-subunit protein complex that is conserved in sequence and function throughout the eukaryotic kingdom...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2012.667214
更新日期:2012-07-01 00:00:00
abstract::Some asparagine and glutamine residues in proteins undergo deamidation to aspartate and glutamate with rates that depend upon the sequence and higher-order structure of the protein. Functional groups within the protein can catalyze this reaction, acting as general acids, bases, or stabilizers of the transition state. ...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409239109081719
更新日期:1991-01-01 00:00:00
abstract::O-linked β-N-acetylglucosamine (O-GlcNAc) is a regulatory post-translational modification of intracellular proteins. The dynamic and inducible cycling of the modification is governed by O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA) in response to UDP-GlcNAc levels in the hexosamine biosynthetic pathway (HBP). Due t...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2014.884535
更新日期:2014-03-01 00:00:00
abstract::Glycosaminoglycans (GAGs) play an intricate role in the extracellular matrix (ECM), not only as soluble components and polyelectrolytes, but also by specific interactions with growth factors and other transient components of the ECM. Modifications of GAG chains, such as isomerization, sulfation, and acetylation, gener...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409239509083490
更新日期:1995-01-01 00:00:00
abstract::The demonstration that ribosomal peptide synthesis is a ribozyme-catalyzed reaction makes it almost certain that there was once an RNA World. The central problem for origin-of-life studies, therefore, is to understand how a protein-free RNA World became established on the primitive Earth. We first review the literatur...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230490460765
更新日期:2004-03-01 00:00:00
abstract::Following a brief introduction of cellular response to stimulation comprising leukocyte activation, three major areas are discussed: (1) the neutrophil oxidase; (2) myeloperoxidase (MPO)-dependent oxidative microbicidal reactions; and (3) MPO-independent oxidative reactions. Topics included in section (A) are current ...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238909082555
更新日期:1989-01-01 00:00:00
abstract::Our understanding of the fundamental regulatory roles that tyrosine phosphatases play within cells has advanced significantly in the last two decades. Out-dated ideas that tyrosine phosphatases acts solely as the "off" switch counterbalancing the action of tyrosine kinases has proved to be flawed. PTP1B is the most ch...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2013.819830
更新日期:2013-09-01 00:00:00
abstract::This article summarizes all experimental facts concerning the cold denaturation of single-domain, multi-domain, and multimeric globular proteins in aqueous solutions with and without urea and guanidine hydrochloride. The facts obtained by various experimental techniques are analyzed thermodynamically and it is shown t...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409239009090612
更新日期:1990-01-01 00:00:00
abstract::One of the experimental platforms to study programs increasing genetic diversity in cells under stressful or nondividing conditions is adaptive mutagenesis, also called stationary phase mutagenesis or stress-induced mutagenesis. In some model systems, there is evidence that mutagenesis occurs in genes that are activel...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230701597717
更新日期:2007-09-01 00:00:00
abstract::Clathrin constitutes the coat of vesicles involved in three receptor-mediated intracellular transport pathways; the export of aggregated material from the trans-Golgi network for regulated secretion, the transfer of lysosomal hydrolases from the trans-Golgi network to lysosomes and receptor-mediated endocytosis at the...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409239309078441
更新日期:1993-01-01 00:00:00
abstract::Serotonin receptors are the product of 15 distinct genes, 14 of which are G protein-coupled receptors. These receptors are expressed in a wide range of cell types, including distinct neuronal populations, and promote diverse functional responses in multiple organ systems. These receptors are important for mediating th...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2010.516741
更新日期:2010-12-01 00:00:00
abstract::FeII/alpha-ketoglutarate (alphaKG)-dependent hydroxylases catalyze an amazing diversity of reactions that result in protein side-chain modifications, repair of alkylated DNA/RNA, biosynthesis of antibiotics and plant products, metabolism related to lipids, and biodegradation of a variety of compounds. These enzymes po...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409230490440541
更新日期:2004-01-01 00:00:00
abstract::Ribonucleases (RNases) are mediators in most reactions of RNA metabolism. In recent years, there has been a surge of new information about RNases and the roles they play in cell physiology. In this review, a detailed description of bacterial RNases is presented, focusing primarily on those from Escherichia coli and Ba...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.1080/10409238.2019.1651816
更新日期:2019-06-01 00:00:00
abstract::Aptamers are single-stranded structured oligonucleotides (DNA or RNA) that can bind to a wide range of targets ("apatopes") with high affinity and specificity. These nucleic acid ligands, generated from pools of random-sequence by an in vitro selection process referred to as systematic evolution of ligands by exponent...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2011.614592
更新日期:2011-12-01 00:00:00
abstract::Rapid advances in redox systems biology are creating new opportunities to understand complexities of human disease and contributions of environmental exposures. New understanding of thiol-disulfide systems have occurred during the past decade as a consequence of the discoveries that thiol and disulfide systems are mai...
journal_title:Critical reviews in biochemistry and molecular biology
pub_type: 杂志文章,评审
doi:10.3109/10409238.2013.764840
更新日期:2013-03-01 00:00:00