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L6785
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G Fenteany et al.
Science (New York, N.Y.), 268(5211), 726-731 (1995-05-05)
Lactacystin is a Streptomyces metabolite that inhibits cell cycle progression and induces neurite outgrowth in a murine neuroblastoma cell line. Tritium-labeled lactacystin was used to identify the 20S proteasome as its specific cellular target. Three distinct peptidase activities of this
Giovanni Barillari
Frontiers in oncology, 10, 806-806 (2020-06-13)
The growth and metastasis of malignant tumors benefit from the formation of blood vessels within the tumor area. There, new vessels originate from angiogenesis (the sprouting of pre-existing neighboring vessels) and/or vasculogenesis (the mobilization of bone marrow-derived endothelial cell precursors
Paula Moyano et al.
Ecotoxicology and environmental safety, 203, 110975-110975 (2020-07-18)
Manganese (Mn) produces cholinergic neuronal loss in basal forebrain (BF) region that was related to cognitive dysfunction induced after single and repeated Mn treatment. All processes that generate cholinergic neuronal loss in BF remain to be understood. Mn exposure may
Mary Raule et al.
Veterinary immunology and immunopathology, 166(1-2), 43-49 (2015-05-23)
Information on the biochemical properties of proteasomes is lacking or, at best, only fragmentary for most species of veterinary interest. Moreover, direct comparison of the limited data available on the enzymatic features of proteasomes in domestic animals is rendered difficult
Yoshifumi Hashimoto et al.
FEBS letters, 589(17), 2241-2247 (2015-07-15)
The involvement of polypeptide chain-releasing factor eRF3 in translation termination and mRNA decay is well established. Moreover, the finding that the proteolytically processed isoform of eRF3 (p-eRF3) interacts with inhibitors of apoptosis proteins (IAPs) to activate caspase, implies that eRF3
Jeong-A Park et al.
BMB reports, 45(5), 299-304 (2012-05-24)
The ubiquitin-proteasome system is a major proteolytic system for nonlysosomal degradation of cellular proteins. Here, we investigated the response of mouse embryonic stem (ES) cells under proteotoxic stress. Proteasome inhibitors induced expression of heat shock protein 70 (HSP70) in a
Jingyu Yao et al.
Autophagy, 14(7), 1226-1238 (2018-06-27)
Mutations in the genes necessary for the structure and function of vertebrate photoreceptor cells are associated with multiple forms of inherited retinal degeneration. Mutations in the gene encoding RHO (rhodopsin) are a common cause of autosomal dominant retinitis pigmentosa (adRP)
L R Dick et al.
The Journal of biological chemistry, 271(13), 7273-7276 (1996-03-29)
Lactacystin is a Streptomyces metabolite that inhibits cell cycle progression and induces differentiation in a murine neuroblastoma cell line. The cellular target of lactacystin is the 20 S proteasome, also known as the multicatalytic proteinase complex, an essential component of
Reinforcement Learning Recruits Somata and Apical Dendrites across Layers of Primary Sensory Cortex.
Clay O Lacefield et al.
Cell reports, 26(8), 2000-2008 (2019-02-21)
The mammalian brain can form associations between behaviorally relevant stimuli in an animal's environment. While such learning is thought to primarily involve high-order association cortex, even primary sensory areas receive long-range connections carrying information that could contribute to high-level representations.
Limei Wang et al.
Frontiers in pharmacology, 8, 596-596 (2017-09-19)
We report increased cholesterol efflux from macrophages in the presence of falcarindiol, an important dietary constituent present in commonly used vegetables and medicinal plants. Falcarindiol (3-20 μM) increased cholesterol efflux from THP-1-derived macrophages. Western blot analysis showed an increased protein
Ashwanth C Francis et al.
Cell host & microbe, 23(4), 536-548 (2018-04-13)
The HIV-1 core consists of capsid proteins (CA) surrounding viral genomic RNA. After virus-cell fusion, the core enters the cytoplasm and the capsid shell is lost through uncoating. CA loss precedes nuclear import and HIV integration into the host genome
Julie G In et al.
The Biochemical journal, 463(2), 201-213 (2014-08-02)
MAL2 (myelin and lymphocyte protein 2) is thought to regulate at least two steps in the hepatic apical transcytotic pathway. As vesicle budding and delivery at each step are driven by complex machineries, we predicted that MAL2 participates in several
Ayaka Maki et al.
Biological & pharmaceutical bulletin, 43(12), 1924-1930 (2020-12-04)
Nanoparticles are used in many fields and in everyday products. Silver nanoparticles are the most frequently used nanoparticles; for example, in food-related products, owing to their antibacterial activity. However, it has been pointed out that they might have unexpected biological
Sonja M Sachse et al.
The EMBO journal, 38(6) (2019-02-13)
DSCAM and DSCAML1 are immunoglobulin and cell adhesion-type receptors serving important neurodevelopmental functions including control of axon growth, branching, neurite self-avoidance, and neuronal cell death. The signal transduction mechanisms or effectors of DSCAM receptors, however, remain poorly characterized. We used
Oscar Salvador Barrera-Vázquez et al.
Virology, 527, 146-158 (2018-12-12)
Calicivirus infection causes intrinsic apoptosis, leading to viral propagation in the host. During murine norovirus infection, a reduction in the anti-apoptotic protein survivin has been documented. Here we report that in feline calicivirus infection, a downregulation of the anti-apoptotic proteins
Ali Tebbi et al.
The Journal of biological chemistry, 290(22), 14077-14090 (2015-04-17)
Ribonucleotide reductase (RnR) is a key enzyme synthesizing deoxyribonucleotides for DNA replication and repair. In mammals, the R1 catalytic subunit forms an active complex with either one of the two small subunits R2 and p53R2. Expression of R2 is S
Muhammad Elnaggar et al.
Molecular therapy. Methods & clinical development, 17, 1-12 (2019-12-31)
Detection of factor VIII (FVIII) in cells by flow cytometry is controversial, and no monoclonal fluorescent antibody is commercially available. In this study, we optimized such an assay and successfully used it as a platform to study the functional properties
Jingyu Chen et al.
Nucleic acids research, 46(12), 6188-6205 (2018-06-07)
p53 as an effector of nucleolar stress is well defined, but p53 independent mechanisms are largely unknown. Like p53, the NF-κB transcription factor plays a critical role in maintaining cellular homeostasis under stress. Many stresses that stimulate NF-κB also disrupt
Patrick J Gannon et al.
The American journal of pathology, 187(1), 91-109 (2016-12-21)
Mounting evidence implicates antiretroviral (ARV) drugs as potential contributors to the persistence and evolution of clinical and pathological presentation of HIV-associated neurocognitive disorders in the post-ARV era. Based on their ability to induce endoplasmic reticulum (ER) stress in various cell
Arun Upadhyay et al.
Molecular neurobiology, 53(10), 6968-6981 (2015-12-17)
In routine course of life, nonsteroidal anti-inflammatory drugs (NSAIDs) are widely prescribed antipyretic, analgesic, and anti-inflammatory drugs. It is a well-proposed notion that treatment of NSAIDs may induce anti-proliferative effects in numerous cancer cells. Ibuprofen from isobutylphenylpropanoic acid is NSAID
Hiroko Sugiura et al.
Nature communications, 6, 6842-6842 (2015-04-17)
Rheb is a small GTP-binding protein and its GTPase activity is activated by the complex of Tsc1 and Tsc2 whose mutations cause tuberous sclerosis complex (TSC). We previously reported that cultured TSC neurons showed impaired spine synapse morphogenesis in an
Hippo/MST blocks breast cancer by downregulating WBP2 oncogene expression via miRNA processor Dicer.
Shen Kiat Lim et al.
Cell death & disease, 11(8), 669-669 (2020-08-21)
WBP2 transcription coactivator is an emerging oncoprotein and a key node of convergence between EGF and Wnt signaling pathways. Understanding how WBP2 is regulated has important implications for cancer therapy. WBP2 is tightly controlled by post-translational modifications, including phosphorylation and
Adrián Povo-Retana et al.
Cancers, 12(10) (2020-10-24)
Tumor-associated macrophages (TAMs) play a crucial role in suppressing the immunosurveillance function of the immune system that prevents tumor growth. Indeed, macrophages can also be targeted by different chemotherapeutic agents improving the action over immune checkpoints to fight cancer. Here
Deepanwita Pal et al.
Cellular signalling, 40, 166-171 (2017-09-25)
Protein kinase C (PKC)-eta (PKCη) is a member of the novel category of PKC family. It is overexpressed in breast cancer and was shown to inhibit apoptosis and contribute to chemoresistance. Since the anti-apoptotic Bcl-2 family protein myeloid cell leukemia-1
Jinzhong Zhang et al.
Autophagy, 15(10), 1738-1756 (2019-03-21)
Several lines of evidence support the occurrence of cross-regulation between the endocytic pathway and autophagy, but the molecular mechanisms regulating this process are not well-understood. Here, we show that the calcium sensor UNC13D regulates the molecular mechanism of late endosomal
Samuel A Stoner et al.
Blood cancer journal, 10(2), 16-16 (2020-02-08)
Large-scale chromosomal translocations are frequent oncogenic drivers in acute myeloid leukemia (AML). These translocations often occur in critical transcriptional/epigenetic regulators and contribute to malignant cell growth through alteration of normal gene expression. Despite this knowledge, the specific gene expression alterations
Akira Abe et al.
The Journal of biological chemistry, 288(39), 27764-27776 (2013-08-16)
Prefoldin is a molecular chaperone composed of six subunits, PFD1-6, and prevents misfolding of newly synthesized nascent polypeptides. Although it is predicted that prefoldin, like other chaperones, modulates protein aggregation, the precise function of prefoldin against protein aggregation under physiological
Jan Lukas et al.
Molecular therapy : the journal of the American Society of Gene Therapy, 23(3), 456-464 (2014-11-21)
Lysosomal storage disorders (LSD) are a group of heterogeneous diseases caused by compromised enzyme function leading to multiple organ failure. Therapeutic approaches involve enzyme replacement (ERT), which is effective for a substantial fraction of patients. However, there are still concerns
Jose V Pérez-Girón et al.
American journal of physiology. Heart and circulatory physiology, 306(11), H1582-H1593 (2014-04-15)
Glitazones have anti-inflammatory properties by interfering with the transcription of proinflammatory genes, such as cyclooxygenase (COX)-2, and with ROS production, which are increased in hypertension. This study analyzed whether pioglitazone modulates COX-2 expression in hypertension by interfering with ROS and
Jong-Yun Kim et al.
Oncology reports, 33(5), 2639-2647 (2015-03-31)
Styrylquinazolines are synthetic analogues of resveratrol and have been suggested to cause anti-inflammatory activity by modulating prostaglandin E₂ (PGE₂) production. In the present study, we evaluated cytotoxic effects of various styrylquinazoline derivatives and found that (E)-8-acetoxy-2-[2-(3,4-diacetoxyphenyl)ethenyl]-quinazoline (8-ADEQ) most potently inhibited
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