Biomarkers in triple negative breast cancer: A review

Table 2 Vascular endothelial growth factor receptor expression in triple negative breast cancer

Ref.	Total number	No. of TNBC	VEGFR-2 expression1
Mehdizadeh et al[47], 2012	1132	103	93.2%
Iosifidou et al[62], 2009	-	73	77%
Chanana et al[63], 2012	70	27	54% vs 23%
Linderholm et al[67], 2008	679	87	Higher intratumour VEGF levels in TNBC
Andre et al[68], 2009	69	35	34%

¹The expression is depicted as the percentage of patients expressing the marker. TNBC: Triple negative breast cancer; VEGFR: Vascular endothelial growth factor receptor; VEGF: Vascular endothelial growth factor.