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miR-515-5p controls cancer cell migration through MARK4 regulation

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posted on 2023-06-09, 13:46 authored by Olivier E Pardo, Leandro CastellanoLeandro Castellano, Catriona E Munro, Yili Hu, Francesco Mauri, Jonathan Krell, Romain Lara, Filipa G Pinho, Thameenah Choudhury, Adam E Frampton, Loredana Pellegrino, Dmitry Pshezhetskiy, Yulan Wang, Jonathan Waxman, Michael J Seckl, Justin Stebbing
Here, we show that miR-515-5p inhibits cancer cell migration and metastasis. RNA-seq analyses of both oestrogen receptor receptor-positive and receptor-negative breast cancer cells overexpressing miR-515-5p reveal down-regulation of NRAS, FZD4, CDC42BPA, PIK3C2B and MARK4 mRNAs. We demonstrate that miR-515-5p inhibits MARK4 directly 3' UTR interaction and that MARK4 knock-down mimics the effect of miR-515-5p on breast and lung cancer cell migration. MARK4 overexpression rescues the inhibitory effects of miR-515-5p, suggesting miR-515-5p mediates this process through MARK4 down-regulation. Furthermore, miR-515-5p expression is reduced in metastases compared to primary tumours derived from both in vivo xenografts and samples from patients with breast cancer. Conversely, miR-515-5p overexpression prevents tumour cell dissemination in a mouse metastatic model. Moreover, high miR-515-5p and low MARK4 expression correlate with increased breast and lung cancer patients' survival, respectively. Taken together, these data demonstrate the importance of miR-515-5p/MARK4 regulation in cell migration and metastasis across two common cancers.

History

Publication status

  • Published

File Version

  • Published version

Journal

EMBO reports

ISSN

1469-3178

Publisher

EMBO Press

Issue

4

Volume

17

Page range

570-584

Department affiliated with

  • Biochemistry Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2018-06-15

First Open Access (FOA) Date

2018-06-15

First Compliant Deposit (FCD) Date

2018-06-15

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