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Biochimica et Biophysica Acta

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  1. The miR-193a-3p regulated PSEN1 gene suppresses the multi-chemoresistance of bladder cancer.

    Biochimica et Biophysica Acta 1852(3):520 (2015) PMID 25542424

    Chemoresistance prevents the curative cancer therapy, our understanding of which remains inadequate. Among the differentially expressed genes between the chemosensitive (5637) and chemoresistant (H-bc) bladder cancer cell lines, the expression level of the PSEN1 gene (presenilin 1), a key component...
  2. Role of long-chain acyl-CoA synthetase 4 in formation of polyunsaturated lipid species in hepatic stellate cells.

    Biochimica et Biophysica Acta 1851(2):220 (2015) PMID 25500141

    We previously observed that the levels of triacylglycerol (TAG) species containing long polyunsaturated fatty acids (PUFAs) are increased in in vitro activated HSCs. Here we investigated the cause and consequences of the rise in PUFA-TAGs by profiling enzymes involved in PUFA incorporation. We repor...
  3. Dipeptidyl peptidase 9 subcellular localization and a role in cell adhesion involving focal adhesion kinase and paxillin.

    Biochimica et Biophysica Acta 1853(2):470 (2015) PMID 25486458

    We investigated the intracellular distribution of DPP9 chimeric fluorescent proteins and consequent functions of DPP9. We showed that while some DPP9 is associated with mitochondria, the strongest co-localization was with microtubules. Under steady state conditions, DPP9 was not seen at the plasma m...
  4. Atomically detailed lipid bilayer models for the interpretation of small angle neutron and X-ray scattering data.

    Biochimica et Biophysica Acta 1848(2):662 (2015) PMID 25448879

    We present a new atom density profile (ADP) model and a statistical approach for extracting structural characteristics of lipid bilayers from X-ray and neutron scattering data. Models for five lipids with varying head and tail chemical composition in the fluid phase, 1,2-dioleoyl-sn-glycero-3-phosph...
  5. STAT6 silencing up-regulates cholesterol synthesis via miR-197/FOXJ2 axis and induces ER stress-mediated apoptosis in lung cancer cells.

    Biochimica et Biophysica Acta 1849(1):32 (2015) PMID 25451482

    We have shown an inverse relationship of STAT6 and cholesterol biosynthesis and also identified FOXJ2 binding sites in the upstream region of 3 key genes (HMGCR, HMGCS1 and IDI1) of the cholesterol synthesis pathway. Our previous study also provided clues toward the anti-apoptotic role played by STA...
  6. Mechanism of dopachrome tautomerization into 5,6-dihydroxyindole-2-carboxylic acid catalyzed by Cu(II) based on quantum chemical calculation...

    Biochimica et Biophysica Acta 1850(2):281 (2015) PMID 25450182

    We propose the reaction mechanism of the tautomerization to DHICA by Cu(II) from density functional theory-based calculation. We clarified that the activation barriers of α-deprotonation, β-deprotonation, and decarboxylation from dopachrome are significantly reduced by coordination of Cu(II) to quin...
  7. Hunting for Darwin's gemmules and Lamarck's fluid: transgenerational signaling and histone methylation.

    Biochimica et Biophysica Acta 1839(12):1440 (2014) PMID 24859459

    Recent studies have discovered phenotypes induced by a transient treatment or mutation that persist for multiple generations without mutations in DNA. Both invertebrates and vertebrates exhibit such inheritance, and a range of environmental factors can act as a trigger. Now referred to as transgener...
  8. sAC as a model for understanding the impact of endosymbiosis on cell signaling.

    Biochimica et Biophysica Acta 1842(12 Pt B):2548 (2014) PMID 24907565

    As signaling pathways evolve, selection for new functions guides the co-option of existing material. Major transitions in the history of life, including the evolution of eukaryotes and multicellularity, exemplify this process. These transitions provided both strong selection and a plenitude of avail...
  9. Psoriasis decreases the anti-oxidation and anti-inflammation properties of high-density lipoprotein.

    Biochimica et Biophysica Acta 1841(12):1709 (2014) PMID 25240836

    We found that plasma levels of high-density lipoprotein (HDL) cholesterol were decreased in the psoriasis group compared to healthy controls. The malondialdehyde (MDA) content in plasma, in HDL3 and in low-density lipoprotein (LDL) were increased. However, the activity of plasma paraoxonase-1 (PON-1...
  10. Localization of VE-cadherin in plasmalemmal cholesterol rich microdomains and the effects of cholesterol depletion on VE-cadherin mediated c...

    Biochimica et Biophysica Acta 1841(12):1725 (2014) PMID 25281911

    We found by use of single molecule fluorescence microscopy that VE-cadherin is localised in preformed clusters when not inside adherens junctions. These clusters depend on the integrity of the actin cytoskeleton and are localised in cholesterol rich microdomains of mature endothelial cells as found...