Author(s)

Graciela Laguens, Silvia Coronato, Jorge Chambó, Vanda Di Girolamo

Cátedra de Patología B, Cátedra de Inmunología, Facultad de Medicina de la Universidad Nacional de La Plata, Buenos Aires, Argentina.

The interaction between some chemokines with tumoral and stromal cells can influence tumor progression. CXCL9, a monokine induced by interferon gamma (MIG), targets lymphocytes.The aim of our study was to identify and quantify CD4+ and CD8+ T cells in the stroma of human breast cancer and correlate them with the presence of MIG/CXCL9. In 58 specimens of human breast carcinoma and 10 normal breast tissue from mammoplasty surgery, immunohistochemistry and ELISA methods were performed. The number of CD4+ and CD8+ T cells in breast cancer tissue was significantly increased compared with normal breast tissue with a clear predominance of CD8+ T cells. MIG/CXCL9 levels were significantly elevated respect normal breast tissue. This chemokine correlated with the number of CD8+ T cells only in non-metastatic tumors. These data suggest that MIG targets cytotoxic T cells. Their recruitment into breast carcinoma can play a critical role in malignant progression, inhibiting the production of metastasis.

Breast Cancer; CD4+ T cells; CD8+ T Cells’ MIG/CXCL9; Chemokines

Laguens, G. , Coronato, S. , Chambó, J. and Girolamo, V. (2012) Stromal CD4+ and CD8+ T Cells in Human Breast Carcinomas. Its Correlation with Chemokine MIG/CXCL9. Advances in Breast Cancer Research, 1, 7-11. doi: 10.4236/abcr.2012.12002.