Table 2. Immunohistochemical characterization of MM cells.

Primary Antibodies (abbreviation)	Cell culture			Tumors
	AB1	AB12	AB22	AB1-B/c	AB12-B/c	AB22-B/c
Vimentin (Vim)	+	+	+	+	+	+
Wide Spectrum Cytokeratin (WSCK)	+/−	−	−	+/−	+/−	+/−
E-cadherin phosphor (E-cad)	+	+	+/−	+	+/−	+
Smooth Muscle Actin (SMA)	+	+*	+*	+/−	+/−	+/−
Wilm’s Tumor Antigen 1 (WT1)	−	?	+	−	−	−
Calretinin (Calret)	−	−	−	+/−	−	−
β-catenin (βcat)	+	+	+	+	+	+

(−) = absence of staining; (+/−) = weak staining; (+) = positive staining; (*) = some cells do not express the protein; (?) = uncertain.