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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1997-2-28
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pubmed:abstractText |
Mucolipidosis type 4 (ML-4) is an autosomal recessive inborn error of metabolism, the pathogenesis of which is not known. We characterized protein kinase C (PKC) activation and cellular phosphate uptake in intact quiescent ML-4 skin fibroblasts and after stimulation with phorbol myristate acetate (PMA). [3H]Phorbol dibutyrate uptake was not altered in ML-4 compared to control cells. Translocation of PKC from the cytosolic to the membranous compartment upon stimulation with PMA was perturbed in ML-4 cells. Phosphate uptake was reduced in both cytosolic and membranous fractions of quiescent ML-4 cells. Stimulation with PMA did not elicit an increase in phosphate uptake in the cytosolic fraction of ML-4 cells compared with control cells, but led to comparable phosphate uptake in the membranous fraction of both cell types. The data indicate that PKC-mediated signal transduction may be perturbed in ML-4. Other kinases and phosphatases may be involved. These alterations may play an important role in the pathogenesis of this disorder.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1077-3150
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
59
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
33-7
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:8902191-Blotting, Western,
pubmed-meshheading:8902191-Fibroblasts,
pubmed-meshheading:8902191-Humans,
pubmed-meshheading:8902191-Mucolipidoses,
pubmed-meshheading:8902191-Phorbol 12,13-Dibutyrate,
pubmed-meshheading:8902191-Phosphates,
pubmed-meshheading:8902191-Protein Kinase C,
pubmed-meshheading:8902191-Skin,
pubmed-meshheading:8902191-Tetradecanoylphorbol Acetate
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pubmed:year |
1996
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pubmed:articleTitle |
Protein kinase C activation and phosphate uptake are altered in intact mucolipidosis type-4 skin fibroblasts.
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pubmed:affiliation |
Department of Paediatrics, Hadassah University Hospital, Mt. Scopus, Jerusalem, Israel.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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