| pubmed-article:3277970 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:3277970 | lifeskim:mentions | umls-concept:C0220756 | lld:lifeskim |
| pubmed-article:3277970 | lifeskim:mentions | umls-concept:C0178719 | lld:lifeskim |
| pubmed-article:3277970 | lifeskim:mentions | umls-concept:C0023824 | lld:lifeskim |
| pubmed-article:3277970 | lifeskim:mentions | umls-concept:C0300926 | lld:lifeskim |
| pubmed-article:3277970 | pubmed:issue | 7 | lld:pubmed |
| pubmed-article:3277970 | pubmed:dateCreated | 1988-4-6 | lld:pubmed |
| pubmed-article:3277970 | pubmed:abstractText | The intracellular accumulation of unesterified cholesterol was examined during 24 h of low density lipoprotein (LDL) uptake in normal and Niemann-Pick C fibroblasts by fluorescence microscopy with filipin staining and immunocytochemistry. Perinuclear fluorescence derived from filipin-sterol complexes was observed in both normal and mutant cells by 2 h. This perinuclear cholesterol staining reached its peak in normal cells at 6 h. Subsequent development of fluorescence during the remaining 18 h of LDL incubation was primarily limited to the plasma membrane region of normal cells. In contrast, mutant cells developed a much more intense perinuclear fluorescence throughout the entire 24 h of LDL uptake with little enhancement of cholesterol fluorescence staining in the plasma membranes. Direct mass measurements confirmed that internalized LDL cholesterol more readily replenishes the plasma membrane cholesterol of normal than of mutant fibroblasts. Perinuclear filipin-cholesterol fluorescence of both normal and mutant cells was colocalized with lysosomes by indirect immunocytochemical staining of lysosomal membrane protein. Abnormal sequestration of LDL cholesterol in mutant cells within a metabolically latent pool is supported by the finding that in vitro esterification of cellular cholesterol could be stimulated in mutant but not in normal cell homogenates by extensive disruption of the intracellular membranous structures of cells previously cultured with LDL. Deficient translocation of exogenously derived cholesterol from lysosomes to other intracellular membrane sites may be responsible for the delayed homeostatic responses associated with LDL uptake by mutant Niemann-Pick Type C fibroblasts. | lld:pubmed |
| pubmed-article:3277970 | pubmed:language | eng | lld:pubmed |
| pubmed-article:3277970 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:3277970 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:3277970 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:3277970 | pubmed:month | Mar | lld:pubmed |
| pubmed-article:3277970 | pubmed:issn | 0021-9258 | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:BradyR ORO | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:ButlerJ DJD | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:RobinsonEE | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:PatelSS | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:KruthH SHS | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:SokolJJ | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:Blanchette-Ma... | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:ComlyM EME | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:AmendeL MLM | lld:pubmed |
| pubmed-article:3277970 | pubmed:author | pubmed-author:DwyerN KNK | lld:pubmed |
| pubmed-article:3277970 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:3277970 | pubmed:day | 5 | lld:pubmed |
| pubmed-article:3277970 | pubmed:volume | 263 | lld:pubmed |
| pubmed-article:3277970 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:3277970 | pubmed:authorsComplete | N | lld:pubmed |
| pubmed-article:3277970 | pubmed:pagination | 3411-7 | lld:pubmed |
| pubmed-article:3277970 | pubmed:dateRevised | 2006-11-15 | lld:pubmed |
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| pubmed-article:3277970 | pubmed:year | 1988 | lld:pubmed |
| pubmed-article:3277970 | pubmed:articleTitle | Type C Niemann-Pick disease. Lysosomal accumulation and defective intracellular mobilization of low density lipoprotein cholesterol. | lld:pubmed |
| pubmed-article:3277970 | pubmed:affiliation | Developmental and Metabolic Neurology Branch, National Institute of Neurological and Communicative Disorders and Stroke, Bethesda, Maryland 20892. | lld:pubmed |
| pubmed-article:3277970 | pubmed:publicationType | Journal Article | lld:pubmed |
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