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PVT1 exon 9 does not regulate mRNA expression of claudins 1, 3, 4, and 7 in MDA MB 231 cells. Claudin 1 (A), claudin 3 (B), claudin 4 (C) and claudin 7 (D) mRNA expression were assessed following knock down of PVT1 exon 9 in MDA MB 231 cell line. Data presented were normalized against GAPDH, and were obtained from three independent experiments.
