Browsing Biochemistry by Issue Date
Now showing items 1-20 of 41
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Role of mitochondria in neuronal apoptosis
(Karger Publishers, 2000-12)Apoptosis is a controlled form of cell death that participates in the demise of neuronal cells during development, neurodegenerative disorders and exposure to neurotoxic agents. In recent years, the mitochondria have emerged ... -
Expansions of CAG·CTG repeats in immortalized human astrocytes.
(Oxford University Press, 2007)Expansions of trinucleotide repeats (TNRs) are the genetic cause for a number of neurodegenerative disorders. In some of these diseases, ongoing somatic expansions in the brain are thought to contribute to disease progression. ... -
Partial reconstitution of DNA large loop repair with purified proteins from Saccharomyces cerevisiae
(OUP, 2008)Small looped mispairs are corrected by DNA mismatch repair. In addition, a distinct process called large loop repair (LLR) corrects heteroduplexes up to several hundred nucleotides in bacteria, yeast and human cells, and ... -
Mrc1, Tof1 and Csm3 inhibit CAG·CTG repeat instability by at least two mechanisms
(Springer, 2008)Trinucleotide repeats frequently expand and contract in humans and model organisms. Protein factors that modulate this process have been found by candidate gene approaches or mutant screens for increased expansion ... -
Rapid unwinding of triplet repeat hairpins by Srs2 helicase of Saccharomyces cerevisiae
(2008)Expansions of trinucleotide repeats cause at least 15 heritable human diseases. Single-stranded triplet repeat DNA in vitro forms stable hairpins in a sequence-dependent manner that correlates with expansion risk in vivo. ... -
Neuronal cell death in neurodegenerative diseases: recurring themes around protein handling
(Wiley, 2008-06-27)Neuronal cell death plays a role in many chronic neurodegenerative diseases with the loss of particular subsets of neurons. The loss of the neurons occurs during a period of many years, which can make the mode(s) of cell ... -
Restriction of human polyomavirus BK virus DNA replication in murine cells and extracts
(2009)BK virus (BKV) causes persistent and asymptomatic infections in most humans and is the etiologic agent of polyomavirus-associated nephropathy (PVAN) and other pathologies. Unfortunately, there are no animal models with ... -
Bcl-2 family on guard at the ER
(American Physiological Society, 2009)The endoplasmic reticulum (ER) is the main site for protein folding, lipid biosynthesis and calcium storage in the cell. Disturbances of these critical cellular functions lead to ER stress. The ER responds to disturbances ... -
Methods for Monitoring Endoplasmic Reticulum Stress and the Unfolded Protein Response
(2010)The endoplasmic reticulum (ER) is the site of folding of membrane and secreted proteins in the cell. Physiological or pathological processes that disturb protein folding in the endoplasmic reticulum cause ER stress and ... -
Rapid and efficient cancer cell killing mediated by high-affinity death receptor homotrimerizing TRAIL variants
(Macmillan Publishers Limited, 2010)The tumour necrosis factor family member TNF-related apoptosis-inducing ligand (TRAIL) selectively induces apoptosis in a variety of cancer cells through the activation of death receptors 4 (DR4) and 5 (DR5) and is considered ... -
HSP72 Protects Cells from ER Stress-induced Apoptosis via Enhancement of IRE1¿-XBP1 Signaling through a Physical Interaction
(2010)Endoplasmic reticulum (ER) stress is a feature of secretory cells and of many diseases including cancer, neurodegeneration, and diabetes. Adaptation to ER stress depends on the activation of a signal transduction pathway ... -
Mechanisms of ER Stress-Mediated Mitochondrial Membrane Permeabilization
(2010)During apoptosis, the process of mitochondrial outer membrane permeabilization (MOMP) represents a point-of-no-return as it commits the cell to death. Here we have assessed the role of caspases, Bcl-2 family members and ... -
The Proteasome Inhibitor Bortezomib Sensitizes AML with Myelomonocytic Differentiation to TRAIL Mediated Apoptosis
(2011)Acute myeloid leukemia (AML) is an aggressive stem cell malignancy that is difficult to treat. There are limitations to the current treatment regimes especially after disease relapse, and therefore new therapeutic agents ... -
Premitotic Assembly of Human CENPs -T and -W Switches Centromeric Chromatin to a Mitotic State.
(2011)Centromeres are differentiated chromatin domains, present once per chromosome, that direct segregation of the genome in mitosis and meiosis by specifying assembly of the kinetochore. They are distinct genetic loci in that ... -
Inhibition of human BK polyomavirus replication by small noncoding RNAs
(American Society for Microbiology Journals, 2011)Small noncoding RNAs regulate a variety of cellular processes, including genomic imprinting, chromatin remodeling, replication, transcription, and translation. Here, we report small replication-regulating RNAs (srRNAs) ... -
Nerve Growth Factor in Cancer Cell Death and Survival
(MDPI, 2011-02)One of the major challenges for cancer therapeutics is the resistance of many tumor cells to induction of cell death due to pro-survival signaling in the cancer cells. Here we review the growing literature which shows that ... -
Kinetics in signal transduction pathways involving promiscuous oligomerizing receptors can be determined by receptor specificity: Apoptosis induction by TRAIL
(American Society for Biochemistry and Molecular Biology, 2012)Here we show by computer modeling that kinetics and outcome of signal transduction in case of hetero-oligomerizing receptors of a promiscuous ligand largely depend on the relative amounts of its receptors. Promiscuous ... -
Stress management at the ER: regulators of ER stress-induced apoptosis.
(Elsevier, 2012-02-17)The endoplasmic reticulum (ER) is an elaborate cellular organelle essential for cell function and survival. Conditions that interfere with ER function lead to the accumulation and aggregation of unfolded proteins which are ... -
Cell cycle-dependent mobility of Cdc45 determined in vivo by fluorescence correlation spectroscopy
(Public Library of Science, 2012-04-19)Eukaryotic DNA replication is a dynamic process requiring the co-operation of specific replication proteins. We measured the mobility of eGFP-Cdc45 by Fluorescence Correlation Spectroscopy (FCS) in vivo in asynchronous ... -
Cell cycle-dependent formation of Cdc45-Claspin complexes in human cells is compromized by UV-mediated DNA damage
(Wiley, 2013-08-02)The replication factor Cdc45 has essential functions in the initiation and elongation steps of eukaryotic DNA replication and plays an important role in the intra-S-phase checkpoint. Its interactions with other replication ...