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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1988-9-6
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pubmed:abstractText |
Human cultured monocyte-like tumor cells of the U-937 line, that are incubated for 24 h at 37 degrees C with 100 ng/ml of PMA, generate and release a fibroblast-activating factor (FAF) capable of enhancing the uptake of [3H]TdR by human dermal fibroblasts in vitro. The predominant FAF activity in unpurified supernatants from U-937 cells was associated with one protein of 16 to 18 kDa, as assessed by SDS-PAGE and pI 4 to 5, as determined by IEF in gel. Isolation of the FAF in 15-liter batches of supernatant from cultures of 1.5 x 10(10) PMA-stimulated U-937 cells by ammonium sulfate precipitation and sequential filtration on Sephadex G-50, anion exchange chromatography, and reversed phase HPLC yielded microgram quantities of a homogeneous protein of sufficient purity for structural studies. Purified FAF was not absorbed by affinity columns bearing antisera to IL-1 beta, TNF or basic fibroblast growth factor die not share any tryptic peptides with IL-1 alpha or acidic fibroblast growth factor when analyzed by two-dimensional electrophoresis/chromatography on cellulose thin-layer plates, and has an amino-terminal sequence of amino acids that is different from any known fibroblast growth factor. FAF thus represents a unique human monocyte-derived protein that selectively stimulates human fibroblast proliferation and other functions.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Aug
|
pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
15
|
pubmed:volume |
141
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1225-30
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3397539-Cell Line,
pubmed-meshheading:3397539-Cell-Free System,
pubmed-meshheading:3397539-Chromatography, Affinity,
pubmed-meshheading:3397539-Chromatography, Gel,
pubmed-meshheading:3397539-Chromatography, High Pressure Liquid,
pubmed-meshheading:3397539-Fibroblasts,
pubmed-meshheading:3397539-Growth Substances,
pubmed-meshheading:3397539-Humans,
pubmed-meshheading:3397539-Peptide Fragments,
pubmed-meshheading:3397539-Peptide Mapping
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pubmed:year |
1988
|
pubmed:articleTitle |
Isolation and partial characterization of a fibroblast-activating factor generated by U-937 human monocytic leukocytes.
|
pubmed:affiliation |
Howard Hughes Medical Institute, San Francisc, CA 94143.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|