Figure 2. Significant changes in claudin mRNA expression between breast cancer and normal tissues (UALCAN database). (A) CLDN3; (B) CLDN4; (C) CLDN5; (D) CLDN6; (E) CLDN7; (F) CLDN8; (G) CLDN9; (H) CLDN11; (I) CLDN14; (J) CLDN15; (K) CLDN19; (L) CLDN20.