Expression of Monocarboxylate Transporters 1, 2, and 4 in Human Tumours and Their Association with CD147 and CD44

Table 1

Frequency of MCTs, CD147, and CD44 expressions in tumour samples.

Tumour type	Expression
	MCT1			MCT2			MCT4			CD147		CD44
	Positive (%)			Positive (%)			Positive (%)			Positive (%)		Positive (%)
	𝑛	Cyt^a	PM	𝑛	Cyt^a	PM	𝑛	Cyt^a	PM	𝑛	Cyt^a/PM	𝑛	Cyt^a/PM
Breast carcinoma	22	21 (95.5)	5 (22.7)	24	34 (100.0)	0 (0.0)	24	19 (79.2)	1 (4.2)	28	13 (46.4)	27	8 (29.6)
Colon adenocarcinoma	32	23 (71.9)	19 (59.4)	29	29 (100.0)	0 (0.0)	26	19 (73.1)	0 (0.0)	34	13 (38.2)	31	4 (12.9)
Nonsmall cell lung cancer	23	14 (60.9)	5 (21.7)	21	21 (100.0)	0 (0.0)	23	16 (69.6)	0 (0.0)	28	13 (46.4)	27	12 (44.4)
Ovarian adenocarcinoma	24	18 (75.0)	10 (41.7)	30	18 (93.3)	0 (0.0)	28	13 (46.4)	1 (3.6)	26	11 (42.3)	28	2 (7.1)

Cyt: cytoplasm; PM: plasma membrane; ^awith or without plasma membrane staining.
Note: for CD147 and CD44, frequency results are the same for cytoplasm and plasma membrane expression.