Table 3. Influence of chemotherapy on CD70 expressing tumour cells in NSCLC.

	Pre-biopsy			Post-biopsy
N°	Intensity	% CD70+ TC	Distribution	Intensity	% CD70+ TC	Distribution
1	NS	0%	-	+	60%	C
2	NS	0%	-	+	80%	C

*Abbreviations: NS, no staining; +, weak staining intensity; C, cytoplasmic accentuation; TC, tumour cells