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Wei-Chieh Mu et al.
Nutrients, 10(7) (2018-07-20)
Aging is the main factor involved in the onset of degenerative diseases. Dietary protein restriction has been shown to increase the lifespan of rodents and improve metabolic phenotype. Branched-chain amino acids (BCAA) can act as nutrient signals that increase the
Pascal P H Hommelberg et al.
Cellular and molecular life sciences : CMLS, 68(7), 1215-1225 (2010-09-08)
Palmitate activates the NF-κB pathway, and induces accumulation of lipid metabolites and insulin resistance in skeletal muscle cells. Little information is available whether and how these processes are causally related. Therefore, the objectives were to investigate whether intra-cellular lipid metabolites
Youngjoo Kwon et al.
PloS one, 6(4), e18872-e18872 (2011-04-29)
Epithelial ovarian cancer is an aggressive and deadly disease and understanding its invasion mechanisms is critical for its treatment. We sought to study the penetration/invasion of ovarian tumor cells into extracellular matrices (ECMs) using a fibroblast-derived three-dimensional (3D) culture model
Jason Aoto et al.
Neuron, 60(2), 308-320 (2008-10-30)
Normal brain function requires that the overall synaptic activity in neural circuits be kept constant. Long-term alterations of neural activity lead to homeostatic regulation of synaptic strength by a process known as synaptic scaling. The molecular mechanisms underlying synaptic scaling
Ho Sun Jung et al.
Yonsei medical journal, 52(1), 165-172 (2010-12-15)
Imbalances between osteogenic and adipogenic differentiation leads to diseases such as osteoporosis. The aim of our study was to demonstrate the differences in extracellular signal-regulated kinase (ERK) phosphorylation during both adipogenesis and osteogenesis of human bone marrow-derived stem cells (BMSCs).
Deon G Uffort et al.
The Journal of investigative dermatology, 129(1), 148-154 (2008-08-01)
Tumor expression of inducible nitric oxide synthase (iNOS) predicts poor outcomes for melanoma patients. We have reported the regulation of melanoma iNOS by the mitogen-activated protein kinase (MAPK) pathway. In this study, we test the hypothesis that NF-kappaB mediates this
Long-jiang Shao et al.
Cancer research, 68(13), 5143-5151 (2008-07-03)
Maspin is a key tumor suppressor gene in prostate and breast cancers with diverse biological functions. However, how maspin regulates prostate tumor progression is not fully understood. In this study, we have used maspin heterozygous knockout mice to determine the
Gabriel M Gutierrez et al.
Proceedings of the National Academy of Sciences of the United States of America, 105(47), 18402-18407 (2008-11-21)
We have previously shown that the retinoblastoma protein (pRb) can activate expression of Runx2-dependent, bone-specific genes in cultured cells. We now show that pRb also plays a role early in osteogenesis, and that in primary RB1(-/-) calvarial cells there is
Marius Hervé et al.
Scientific reports, 12(1), 13191-13191 (2022-08-02)
We present experiments where extreme ultraviolet femtosecond light pulses are used to photoexcite large molecular ions at high internal energy. This is done by combining an electrospray ionization source and a mass spectrometer with a pulsed light source based on
Mark P Green et al.
Reproductive biology and endocrinology : RB&E, 6, 21-21 (2008-06-11)
Evolutionary theory suggests that in polygynous mammalian species females in better body condition should produce more sons than daughters. Few controlled studies have however tested this hypothesis and controversy exists as to whether body condition score or maternal diet is
Kelly E Beazley et al.
Developmental dynamics : an official publication of the American Association of Anatomists, 237(9), 2529-2541 (2008-08-30)
The corneal epithelium is exposed to reactive oxygen species that are potentially deleterious to nuclear DNA. However, our previous studies show that corneal epithelial cells have a novel, developmentally regulated mechanism for protection from such damage that involves having the
Leryn J Reynolds et al.
Experimental gerontology, 94, 93-98 (2016-12-31)
Numerous studies have examined how both negative and positive maternal exposures (environmental contaminants, nutrition, exercise, etc.) impact offspring risk for age-associated diseases such as obesity, type 2 diabetes, hypertension, and others. The purpose of this study was to introduce the
Z Chen et al.
British journal of pharmacology, 158(2), 486-493 (2009-07-01)
Dopamine inhibits renal cell Na(+),K(+)-ATPase activity and cell sodium transport by promoting the internalization of active molecules from the plasma membrane, whereas angiotensin II (ATII) stimulates its activity by recruiting new molecules to the plasma membrane. They achieve such effects
Bastiaan Evers et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 16(1), 99-108 (2009-12-17)
Hereditary breast cancer is partly explained by germline mutations in BRCA1 and BRCA2. Although patients carry heterozygous mutations, their tumors have typically lost the remaining wild-type allele. Selectively targeting BRCA deficiency may therefore constitute an important therapeutic approach. Clinical trials
Benoit You et al.
EBioMedicine, 51, 102574-102574 (2019-12-27)
In colorectal cancer, hPG80 (progastrin) is released from tumor cells, promotes cancer stem cells (CSC) self-renewal and is detected in the blood of patients. Because the gene GAST that encodes hPG80 is a target gene of oncogenic pathways that are
Giorgia Salvagiotto et al.
PloS one, 6(3), e17829-e17829 (2011-03-30)
Human ESC and iPSC are an attractive source of cells of high quantity and purity to be used to elucidate early human development processes, for drug discovery, and in clinical cell therapy applications. To efficiently differentiate pluripotent cells into a
Michael J Abrams et al.
eLife, 10 (2021-12-08)
Can limb regeneration be induced? Few have pursued this question, and an evolutionarily conserved strategy has yet to emerge. This study reports a strategy for inducing regenerative response in appendages, which works across three species that span the animal phylogeny.
Sungsoo Na et al.
Proceedings of the National Academy of Sciences of the United States of America, 105(18), 6626-6631 (2008-05-06)
It is widely postulated that mechanotransduction is initiated at the local force-membrane interface by inducing local conformational changes of proteins, similar to soluble ligand-induced signal transduction. However, all published reports are limited in time scale to address this fundamental issue.
Li-Xia Yang et al.
Biochimica et biophysica acta, 1791(11), 1057-1065 (2009-07-01)
Our aim was to identify an insulin response element (IRE) in the lipoprotein lipase (LPL) gene. We identified a 19 bp sequence as a putative IRE in LPL non-coding exon 10 using bioinformatics. Upon sequencing the IRE region, a novel
Jasmina Zivanovic et al.
Cell metabolism, 30(6), 1152-1170 (2019-11-19)
Life on Earth emerged in a hydrogen sulfide (H2S)-rich environment eons ago and with it protein persulfidation mediated by H2S evolved as a signaling mechanism. Protein persulfidation (S-sulfhydration) is a post-translational modification of reactive cysteine residues, which modulate protein structure
Gerald R V Hammond et al.
The Journal of cell biology, 184(2), 297-308 (2009-01-21)
Polyphosphoinositol lipids convey spatial information partly by their interactions with cellular proteins within defined domains. However, these interactions are prevented when the lipids' head groups are masked by the recruitment of cytosolic effector proteins, whereas these effectors must also have
Jed J W Wiltzius et al.
Protein science : a publication of the Protein Society, 18(7), 1521-1530 (2009-05-29)
Islet Amyloid Polypeptide (IAPP or amylin) is a peptide hormone produced and stored in the beta-islet cells of the pancreas along with insulin. IAPP readily forms amyloid fibrils in vitro, and the deposition of fibrillar IAPP has been correlated with
Huili Li et al.
Molecular cancer, 10, 100-100 (2011-08-23)
The transcription factor, CCAAT enhancer binding protein-β (C/EBPβ), is expressed as several distinct protein isoforms (LAP1, LAP2 and LIP) that have opposing actions in cellular proliferation and differentiation. Increases in the ratio of LIP/LAP are associated with aggressive, metastatic breast
Alexandre Prieur et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 23(17), 5267-5280 (2017-06-11)
Purpose: Patients with metastatic colorectal cancer suffer from disease relapse mainly due to cancer stem cells (CSC). Interestingly, they have an increased level of blood progastrin, a tumor-promoting peptide essential for the self-renewal of colon CSCs, which is also a
Muslima Chowdhury et al.
Proceedings of the National Academy of Sciences of the United States of America, 105(41), 15872-15877 (2008-10-07)
Ig class switch recombination (CSR) is initiated by activation-induced cytidine deaminase (AID) mediated deamination of the switch (S) regions; the resultant mismatch is processed to yield the DNA breaks required for recombination. Whereas many of the pathways involved in the
Fábio S Lira et al.
Lipids in health and disease, 10, 37-37 (2011-03-01)
It is well known that high fat diets (HFDs) induce obesity and an increase in proinflammatory adipokines. Interleukin-6 (IL-6) is considered the major inflammatory mediator in obesity. Obesity is associated with a vitamin deficiency, especially of vitamins E and D3.
Sandeep Dayal et al.
PloS one, 6(9), e24571-e24571 (2011-09-29)
Antibodies are assembled by a highly orchestrated series of recombination events during B cell development. One of these events, class switch recombination, is required to produce the IgG, IgE and IgA antibody isotypes characteristic of a secondary immune response. The
D E Johns et al.
Journal of dental research, 87(6), 548-552 (2008-05-27)
Tissue-engineering of the temporomandibular joint (TMJ) disc aims to provide patients with TMJ disorders an option to replace diseased tissue with autologous, functional tissue. This study examined clinically relevant cell sources by comparing costal chondrocytes, dermal fibroblasts, a mixture of
Yan Gu et al.
Nature communications, 12(1), 6711-6711 (2021-11-20)
Cancer stemness represents a major source of development and progression of colorectal cancer (CRC). c-Met critically contributes to CRC stemness, but how c-Met is activated in CRC remains elusive. We previously identified the lipolytic factor ABHD5 as an important tumour
Per Magnus Haram et al.
Cardiovascular research, 81(4), 723-732 (2008-12-03)
The recent development of a rat model that closely resembles the metabolic syndrome allows to study the mechanisms of amelioration of the syndrome by exercise training. Here, we compared the effectiveness for reducing cardiovascular risk factors by exercise training programmes
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