Differential expression of the murine Ly-6A/E antigen homolog of human squamous cell carcinoma antigen E48 during malignant transformation and tumor progression of squamous cell carcinoma line Pam 212.
basic_science · Level V
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Abstract
The mRNA differential display method detected increased expression of the mRNA of an immune recognition antigen known as Ly-6A/E after malignant transformation of the murine squamous cell carcinoma line Pam 212. Subsequent loss of expression of Ly-6A/E occurred with metastatic tumor progression of Pam in vivo. Ly-6 molecules have been implicated in immune cell recognition and signal transduction and are homologous to the human E48 SCC antigen that has been shown to be involved in cell-cell recognition. These observations suggest that loss of Ly-6A/E antigen may contribute to tumor progression and metastasis of squamous cell carcinoma through decreased tumor-lymphocyte or tumor-tumor recognition.
Medical subject headings
- Antigens, Ly
- Carcinoma, Squamous Cell
- Cell Adhesion Molecules
- Cell Transformation, Neoplastic
- Gene Expression Regulation, Neoplastic
- Glycoproteins
- Hematopoietic Stem Cells
- Membrane Proteins