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. 2018 Jan 30;11:82. doi: 10.1186/s13104-018-3192-1

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© The Author(s) 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Alterations in caspase activity but not viability of HaCaT keratinocytes exposed to Z-Gly-RGD(DPhe)-mitP. Cells were treated with Z-Gly-RGD(DPhe)-mitP in serum-free medium for 24 h prior to (a) assessment of caspase 3/7 activity with a luminescence assay and (b) evaluation of cell density using the SRB assay. Data were pooled from three independent experiments performed in triplicate (a) or quadruplicate (b). Data shown are means + SEM; *p < 0.05; ***p < 0.0001 unpaired t test with Welch’s correction compared to the 0 μmol L⁻¹ controls