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. 2017 May 30;36:72. doi: 10.1186/s13046-017-0534-0

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© The Author(s). 2017

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. 8 — A schema depicting a mechanism by which FGF2/FGFR1 regulates autophagy. Left panel: FGFR1 activation by FGF2 upregulates ERK1/2 phosphorylation and then downregulates beclin-1, thereby suppresses autophagy. Right panel: FGFR1 inhibition (AZD4547 or FGFR1 knockdown) downregulates phosphorylation of ERK1/2 and subsequently upregulates beclin-1, thereby induces autophagy