Linked Life Data

11929784

Source:http://linkedlifedata.com/resource/pubmed/id/11929784

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2002-4-3
pubmed:abstractText
In the initial stage of cutaneous T-cell lymphoma (CTCL), proliferating CTCL cells are concentrated in the epidermis in close association with an immature dendritic cell (DC), the Langerhans cell. Because long-term in vitro culture of CTCL cells has proven difficult, the in vivo association with the major antigen-presenting cell (APC) of the epidermis has been postulated to play a role in directly stimulating the clonal T-cell proliferation. We report that CTCL cells can be reproducibly grown in culture for 3 months when cocultured with immature DCs. CTCL cells retain the phenotype and genotype of the initial malignant clone, whereas the APCs are a mixture of immature and mature DCs. CTCL cell and DC survival was dependent on direct membrane contact. Growth was inhibited by antibodies that bound to the T-cell receptor (TCR) or interfered with the interaction of CD40 with its ligand on the CTCL cell. Addition of antibody to CD3 or the clonotypic TCR caused rapid CTCL cell apoptosis followed by engulfment by avidly phagocytic immature DCs and subsequent DC maturation. The opportunity to study CTCL cells and immature DCs for prolonged periods will facilitate studies of tumor cell biology and will allow investigation of the intriguing hypothesis that CTCL cell growth is driven through TCR recognition of class II-presented self-peptides. In addition, the culture of CTCL cells will permit evaluation of therapies in vitro before clinical intervention, thereby improving safety and efficacy.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
99
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2929-39
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
The growth of cutaneous T-cell lymphoma is stimulated by immature dendritic cells.
pubmed:affiliation
Yale University, School of Medicine, Department of Dermatology and Laboratory Medicine, New Haven, CT 06510, USA. carole.berger@yale.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't