Table 2.

Numerical results of ectoenzyme expression.

A) MV with high expression of ectoenzymes in MM patients and controls (% of MV with high expression; mean ± SD)	MM patients	MGUS/SMM patients	Statistics
CD38	33.3 ± 4.1	17.9 ± 3.4	p = 0.006
CD39	22.9 ± 3.9	13.2 ± 2.5	p = 0.05
CD157	24.7 ± 3.8	13 ± 2.3	p = 0.04
CD203a/PC-1	21.3 ± 3.7	12.2 ± 3.1	p = 0.04
CD73	25.3 ± 3.5	14.5 ± 3.2	p = 0.01
B) MV with high expression of ectoenzymes in BM cells from MM patients (% of MV with high expression; mean ± SD)	CD138+ cells	CD138- cells	Statistics
CD38	28 ± 1.1	4.6 ± 0.32	p = 0.05
CD39	16.3 ± 0.3	10.5 ± 0.3	p = 0.05
CD73	4.4 ± 0.3	6.6 ± 0.3	p = 0.05
CD203a/PC-1	16.9 ± 0.5	16.4 ± 0.3	ns
C) MV with high expression of ectoenzymes in fresh BM samples from MM patients and controls (% of MV with high expression; mean ± SD)	MM patients	MGUS/SMM patients	Statistics
CD38	37 ± 16.9	7.3 ± 0.69	p = 0.05
CD39	31.4 ± 12.1	2.4 ± 0.17	p = 0.05
CD203a/PC-1	43.1 ± 16.2	2.5 ± 0.2	p = 0.05
CD73	48.7 ± 11.3	4.5 ± 1.3	p = 0.05