Table 1.

Immunohistochemical analyses of tumor-infiltrating cells after ECT

	CD11b	CD11c	CD80	CD86	CD8	CD4
ECT 24 h	++	+	+	++	−	+
ECT 48 h	++	++	++	++	+	+
ECT 72 h	+++	+++	+++	++	++	+
ECT 96 h	++++	+++	++++	+++	++	+
Untreated	+	+	+	+	−	+

Semi-quantitative evaluation of antigen expression in tumor sections. Immunohistochemical staining was performed with various antibodies in two independent experiments. Histological sections were obtained from non-treated LPB tumors (n = 3) or treated tumors removed 24, 48, 72 and 96 h after ECT (n = 3)