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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1987-7-7
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pubmed:abstractText |
Three new human myeloma cell lines (U-1957, U-1958, and U-1996) have been established in vitro. The cell lines are Epstein-Barr virus (EBV) negative, monoclonal, and aneuploid and should thus represent malignant cell populations and not EBV-carrying non-neoplastic B lymphoblastoid cell lines. The myeloma origin of the cell lines is also suggested by their capacity for production of monoclonal complete immunoglobulin (Ig) molecules (U-1957 and U-1958) or IgG light chains (U-1996) of the same type as the myeloma protein in vivo. All the cell lines have morphological features of plasmablasts-plasma cells but appear to represent slightly different stages of B cell differentiation. Thus, the U-1958 has plasma cell morphology, expresses only PCA-1 and OKT-10 but no other B cell antigens, and secretes 1.5 micrograms/mL of IgG/10(6) cells/24 hours. The U-1957 has plasma cell morphology and expresses Fc receptors and the LB-1 antigen in addition to the PCA-1 and OKT-10 antigens. This line produces only minimal amounts of IgG, which appears not to be secreted. The U-1996, finally, is a kappa light chain producer, has a plasmablast morphology, and expresses LB-1 in addition to the PCA-1 and OKT-10 antigens. All three cell lines are chromosomally heterogeneous and contain several markers with a 14q+ abnormality as a common characteristic abnormality. These new myeloma lines have been in continuous culture for approximately 3 years and are instrumental in studies of various aspects of the biology of human myeloma.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0006-4971
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
69
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1605-12
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3580570-Aged,
pubmed-meshheading:3580570-Antibody-Producing Cells,
pubmed-meshheading:3580570-Antigens, Surface,
pubmed-meshheading:3580570-Cell Line,
pubmed-meshheading:3580570-Collodion,
pubmed-meshheading:3580570-Cytogenetics,
pubmed-meshheading:3580570-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:3580570-Humans,
pubmed-meshheading:3580570-Male,
pubmed-meshheading:3580570-Microscopy, Electron,
pubmed-meshheading:3580570-Middle Aged,
pubmed-meshheading:3580570-Multiple Myeloma,
pubmed-meshheading:3580570-Paper,
pubmed-meshheading:3580570-Phenotype
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pubmed:year |
1987
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pubmed:articleTitle |
Establishment and phenotypic characterization of three new human myeloma cell lines (U-1957, U-1958, and U-1996).
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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