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Table 1 Expression of the 5 multidrug resistance proteins in the tumor cells

From: Expression and clinical significance of multidrug resistance proteins in brain tumors

Multidrug resistance protein n - + ++ +++ Strongly positive rate (%)
P-gp 30 4 18 8 0 26.67
Topo II 30 13 10 7 0 23.33
GST-π 30 10 15 5 0 16.67
MRP 30 28 1 1 0 3.33
LRP 30 26 3 1 0 3.33
  1. In tumor cells, the strongly positive rate of P-gp, Topo II, GST-π, LRP and MRP were 26.67%,23.33%,16.67%,3.33% and 3.33%, respectively. This difference was statistically significant (Rank sum test, P < 0.05)