Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0027627 (metastases)
 103,950 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The melanoma-associated antigen P3.58 is rarely found on benign proliferating melanocytes but is consistently expressed on advanced malignant melanomas which have a high probability of metastasis. Previous studies have shown that its expression on normal tissues is limited to vascular endothelia and lymphoid follicle germinal centers and that it is also expressed by activated monocytes in vitro. In the studies reported here, anti-P3.58 monoclonal antibodies (mAb) were shown to partially inhibit antigen-specific and anti-CD3-induced T cell proliferation and to completely block a lymphocyte/monocyte clustering which occurs in the absence of added antigen. This inhibition is highly specific for P3.58 mAb and was not affected by mAb directed to major histocompatibility complex or T cell antigens. P3.58 therefore seems to be involved in an antigen-independent attraction or adhesion of lymphocytes. P3.58 is the second example (HLA-DR being the first) of an association between the expression of an immune function-associated molecule and the development of metastatic disease in melanoma.
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PMID:The tumor progression-associated human melanoma antigen P3.58 mediates monocyte-lymphocyte interactions in vitro. 322 Jan 5

The 89kd cell surface glycoprotein, P3.58, is expressed on human malignant melanomas in situ where it is associated with an increased risk of metastatic disease. Monoclonal antibodies detecting denatured P3.58 were produced and used to isolate a P3.58 encoding cDNA clone from a human melanoma lambda expression library. Sequencing of the cDNA revealed that the P3.58 antigen is identical to the leukocyte intercellular adhesion molecule 1 (ICAM-1).
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PMID:The melanoma progression-associated antigen P3.58 is identical to the intercellular adhesion molecule, ICAM-1. 322 81