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Apolipoprotein B

apolipoprotein B, apoB, Apolipoprotein B-100, apoB-100
This gene product is the main apolipoprotein of chylomicrons and low density lipoproteins. It occurs in plasma as two main isoforms, apoB-48 and apoB-100: the former is synthesized exclusively in the gut and the latter in the liver. The intestinal and the hepatic forms of apoB are encoded by a single gene from a single, very long mRNA. The two isoforms share a common N-terminal sequence. The shorter apoB-48 protein is produced after RNA editing of the apoB-100 transcript at residue 2180 (CAA->UAA), resulting in the creation of a stop codon, and early translation termination. Mutations in this gene or its regulatory region cause hypobetalipoproteinemia, normotriglyceridemic hypobetalipoproteinemia, and hypercholesterolemia due to ligand-defective apoB, diseases affecting plasma cholesterol and apoB levels. [provided by RefSeq, Jul 2008] (from NCBI)
Top mentioned proteins: HDL, HAD, AGE, CAN, ACID
Papers using apolipoprotein B antibodies
siRNA off-target effects can be reduced at concentrations that match their individual potency
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Harada-Shiba Mariko et al., In Molecular Therapy. Nucleic Acids, 2010
... Membranes were then incubated with primary antibody for mouse apoB-100 or -48 (Meridian Life Science, Inc., Saco, ME) for ...
Anionic phospholipids lose their procoagulant properties when incorporated into high density lipoproteins
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Reitsma Pieter H., In PLoS ONE, 2008
... the goat polyclonal IgG to human apolipoprotein A-II and the goat polyclonal IgG to human apolipoprotein B were from Abcam (Cambridge, UK) ...
Hepatic expression of microsomal triglyceride transfer protein and in vivo secretion of triglyceride-rich lipoproteins are increased in obese diabetic mice.
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Polidori Carlo, In PLoS ONE, 2001
... Seven-week-old male C57Bl/6 and human apoB-transgenic mice (B6.SJL-Tg(APOB)1102Sgy-mice backcrossed to ...
A third-generation lentivirus vector with a conditional packaging system.
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Lindenbach Brett D., In PLoS Pathogens, 1997
... Antibodies were obtained from the following companies: Apolipoprotein B (Millipore); PLA2G4A (Abcam ...
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Papers on apolipoprotein B
Differential Complement Activation Pathways Promote C3b Deposition on Native and Acetylated LDL thereby Inducing Lipoprotein Binding to the Complement Receptor 1.
New
Castro Cabezas et al., Netherlands. In J Biol Chem, 27 Nov 2014
The relevance of these findings was demonstrated by the fact that ex vivo upregulation of CR1 on leukocytes was accompanied by a concomitant increased binding of apolipoprotein B containing lipoproteins to leukocytes without changes in LDL-receptor expression.
High-Resolution Genetic Mapping in the Diversity Outbred Mouse Population Identifies Apobec1 as a Candidate Gene for Atherosclerosis.
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Bennett et al., Chapel Hill, United States. In G3 (bethesda), 23 Nov 2014
One candidate gene within the Chromosome 6 peak region associated with atherosclerosis is Apobec1, the apolipoprotein B (ApoB) mRNA editing enzyme, which plays a role in the regulation of ApoB, a critical component of LDL, by editing ApoB mRNA.
Discordance analysis and the Gordian Knot of LDL and non-HDL cholesterol versus apoB.
New
de Graaf et al., Nijmegen, Netherlands. In Curr Opin Lipidol, 21 Nov 2014
However, although highly correlated, apolipoprotein B particles may contain a normal mass of cholesterol or may be cholesterol-depleted or cholesterol-enriched. Discordance analysis compares the predictive power of LDL-C and non-HDL-C to apolipoprotein B and LDL particle numbers in patients in whom they differ, that is, in whom they are discordant.
Peripheral arterial disease, type 2 diabetes and postprandial lipidaemia: Is there a link?
Review
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Pérez-López et al., Málaga, Spain. In World J Diabetes, 15 Nov 2014
Additionally, the use of certain specific postprandial particle markers, such as apolipoprotein B-48, makes it easier and more simple to approach the postprandial phenomenon.
Hepatocellular carcinoma in nonalcoholic fatty liver: Role of environmental and genetic factors.
Review
New
Valenti et al., Milano, Italy. In World J Gastroenterol, 28 Oct 2014
Recently, rare loss-of-function mutations in Apolipoprotein B resulting in very low density lipoproteins hepatic retention and in Telomerase reverse transcriptase influencing cellular senescence have also been linked to HCC in NAFLD.
Very low levels of atherogenic lipoproteins and the risk for cardiovascular events: a meta-analysis of statin trials.
Review
New
Kastelein et al., Amsterdam, Netherlands. In J Am Coll Cardiol, 05 Sep 2014
OBJECTIVES: The aim of this meta-analysis was to evaluate: 1) the interindividual variability of reductions in low-density lipoprotein cholesterol (LDL-C), non-high-density lipoprotein cholesterol (non-HDL-C), or apolipoprotein B (apoB) levels achieved with statin therapy; 2) the proportion of patients not reaching guideline-recommended lipid levels on high-dose statin therapy; and 3) the association between very low levels of atherogenic lipoproteins achieved with statin therapy and cardiovascular disease risk.
A 52-week placebo-controlled trial of evolocumab in hyperlipidemia.
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Impact
DESCARTES Investigators et al., Stellenbosch, South Africa. In N Engl J Med, Jun 2014
Evolocumab treatment also significantly reduced levels of apolipoprotein B, non-high-density lipoprotein cholesterol, lipoprotein(a), and triglycerides.
The combined hyperlipidemia caused by impaired Wnt-LRP6 signaling is reversed by Wnt3a rescue.
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Impact
Mani et al., New Haven, United States. In Cell Metab, Mar 2014
Further investigation showed that LRP6(R611C) mutation triggers hepatic de novo lipogenesis, lipid and cholesterol biosynthesis, and apoB secretion by an Sp1-dependent activation of IGF1, AKT, and both mTORC1 and mTORC2.
[The clinical biochemistry of hypo-lipedemic therapy and mechanisms of action of statins: the fatty acids, statins and diabetes mellitus].
Review
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Titov, In Klin Lab Diagn, Feb 2014
The statins, decreasing content of non-esterified cholesterol in monolayer, activate hydrolysis of triglycerides in lipoproteins of very low density, formation of lipoproteins of low density and their absorption by cells through apoB-100 receptors.
[The positional isomers of triglycerides in oils, fats and apoB-100 lipoproteins: palmitic and oleic modes of metabolism of fatty acids-substrates for energy acquiring].
Review
New
Titov V N et al., In Klin Lab Diagn, Jan 2014
Even total resemblance of content of fatty acids in triglycerides has both no standing for their functional unity nor even identity of their physical chemical characteristics.
Whole grain rye intake, reflected by a biomarker, is associated with favorable blood lipid outcomes in subjects with the metabolic syndrome - a randomized study.
New
Thorsdottir et al., Reykjavík, Iceland. In Plos One, Dec 2013
RESULTS: When adjusted for confounders, total plasma AR at 18/24 weeks was not significantly associated with blood lipids but the AR ratio C17∶0/C21∶0 was inversely associated with LDL cholesterol concentrations (B (95% CI): -0.41 (-0.80 to -0.02)), log LDL/HDL cholesterol ratio (-0.20 (-0.37 to -0.03)), log non-HDL cholesterol (-0.20 (-0.37 to -0.03)), log apolipoprotein B (-0.12 (-0.24 to 0.00)) and log triglyceride concentrations (-0.35 (-0.59 to -0.12)).
Genetic Analysis of Intracapillary Glomerular Lipoprotein Deposits in Aging Mice.
New
van Goor et al., Groningen, Netherlands. In Plos One, Dec 2013
Electron microscopy and immunohistochemical staining for apoE, apoB, apoA-IV and perilipin-2 was performed to further characterize the lesions.
MicroRNA-30c reduces hyperlipidemia and atherosclerosis in mice by decreasing lipid synthesis and lipoprotein secretion.
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Impact
Hussain et al., New York City, United States. In Nat Med, Jul 2013
We show that microRNA-30c (miR-30c) interacts with the 3' untranslated region of MTP mRNA and induces its degradation, leading to reductions in MTP activity and in apolipoprotein B (APOB) secretion.
IRE1α-XBP1s induces PDI expression to increase MTP activity for hepatic VLDL assembly and lipid homeostasis.
Impact
Kaufman et al., Los Angeles, United States. In Cell Metab, 2012
Hepatocyte-specific deletion of Ire1α reduces lipid partitioning into the ER lumen and impairs the assembly of triglyceride (TG)-rich VLDL but does not affect TG synthesis, de novo lipogenesis, or the synthesis or secretion of apolipoprotein B (apoB).
Hepatic sortilin regulates both apolipoprotein B secretion and LDL catabolism.
GeneRIF
Rader et al., Philadelphia, United States. In J Clin Invest, 2012
model in which increased hepatic sortilin binds intracellular APOB-containing particles in the Golgi apparatus as well as extracellular LDL at the plasma membrane and traffics them to the lysosome for degradation
Elevated ApoB serum levels strongly predict early cardiovascular events.
GeneRIF
de Faire et al., Stockholm, Sweden. In Heart, 2012
Data indicate that increased ApoB serum levels are important predictors of early cardiovascular events.
Role of the gut in lipid homeostasis.
Review
Impact
Davidson et al., Saint Louis, United States. In Physiol Rev, 2012
We review the pathways and genetic regulation of chylomicron assembly, the role of dominant restriction points such as microsomal triglyceride transfer protein and apolipoprotein B, and the role of CD36, l-FABP, and other proteins in formation of the prechylomicron complex.
ApoB-containing lipoproteins regulate angiogenesis by modulating expression of VEGF receptor 1.
Impact
GeneRIF
Yaniv et al., Israel. In Nat Med, 2012
found that ApoB negatively regulates angiogenesis and that it is the ApoB protein particle
A prospective genetic marker of the visual-perception disorder Meares-Irlen syndrome.
GeneRIF
Watson et al., Armidale, Australia. In Percept Mot Skills, 2012
APOB 3' VNTR locus is a potential marker for susceptibility to Meares-Irlen syndrome and perhaps other related conditions
Synthesis, conformation and vibrational dynamics of the peptide -Ser-Cys-Lys-Leu-Asp-Phe-, a fragment of apolipoprotein B.
GeneRIF
Vijai Prakash et al., Lucknow, India. In Indian J Biochem Biophys, 2002
Synthesis, conformation and vibrational dynamics of the peptide -Ser-Cys-Lys-Leu-Asp-Phe-, a fragment of apolipoprotein B
More papers using apolipoprotein B antibodies
Multiply attenuated lentiviral vector achieves efficient gene delivery in vivo.
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Lindenbach Brett, In PLoS ONE, 1996
... Heart Institute (University of Ottawa, Ontario, Canada), anti-apoB (clone 1609) monoclonal antibodies and peroxidase-conjugated goat anti-apoB antibodies were from Biodesign (Saco, ME, USA) ...
PKC gamma mutant mice exhibit mild deficits in spatial and contextual learning
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Skoulakis Efthimios M. C., In PLoS ONE, 1992
... ApoB-100 transgenic mice were produced in ...
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