Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1991-8-20
pubmed:abstractText
A new human plasma cell line, UMJF-2, has been derived from the bone marrow of a patient with multiple myeloma. Morphological studies disclosed large nucleoli, moderate numbers of mitochondria, and scant endoplasmic reticulum consistent with a plasmablastic morphology. The cells have immunologic characteristics of early plasma cells, including intense expression of cytoplasmic IgG-lambda and weaker, but discernible, expression of surface IgG-lambda. Cell surface antigens defined by the monoclonal antibodies OKT10 (CD38) and PCA-1, characteristic of mature plasma cells, and B1 (CD20), B4 (CD19), and I-2 (HLA-DR), characteristic of earlier stages of B-lymphocyte differentiation, are present on UMJF-2 cells. Cytogenetic studies reveal the presence of trisomy 12. UMJF-2 does not contain the Epstein-Barr virus by Southern blot analysis. Tissue culture media conditioned by these cells contains a soluble immunosuppressive factor, capable of inhibiting pokeweed mitogen induced IgM secretion by normal human B-lymphocytes. UMJF-2 provides a model for the study of the pathogenesis of polyclonal hypogammaglobulinemia in human multiple myeloma.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0887-6924
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
574-84
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Characterization of a new human multiple myeloma cell line, UMJF-2, which suppresses antibody production by B-lymphocytes in vitro.
pubmed:affiliation
Department of Internal Medicine, University of Michigan, Ann Arbor.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't