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. 2015 Jul 29;10(7):e0134305. doi: 10.1371/journal.pone.0134305

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© 2015 Beckenkamp et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 2 — Quantitative real-time RT-PCR analysis of DPPIV/CD26 expression in cervical cancer cells (SiHa, HeLa and C33A) and immortalized keratinocytes (HaCaT). The total RNA was isolated and the cDNA was analyzed with the primers as described in Materials and methods section. Bars represent mean ± SD for three experiments. *Indicates statistical significance when cervical cancer cell lines were compared to the non-tumorigenic cell line, HaCaT (ANOVA followed by Tukey’s test, p ≤ 0.05).