Table 4. Carbonic anhydrase IX (CA IX) as a prognostic marker in various types of cancer.

Type of cancer	Prognostic/predictive significance of high CA IX Expression	Reference
Non-small-cell lung cancer	Unfavourable	Giatromanolaki et al, 2001; Swinson et al, 2003; Kim et al, 2005; Kon-no et al, 2006; Simi et al, 2006
Bladder cancer		Hoskin et al, 2003
Breast cancer	Unfavourable	Chia et al, 2001; Brennan et al, 2006; Generali et al, 2006; Hussain et al, 2007; Trastour et al, 2007
Oligodendroglial brain tumour	Unfavourable	Järvelä et al, 2008
Head and neck cancer	Unfavourable	Bache et al, 2006; Kappler et al, 2008
Renal clear cell carcinoma	Favourable	Bui et al, 2003, 2004; Atkins et al, 2005; Patard et al, 2008