Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

FRMD6 has tumor suppressor functions in prostate cancer

Haldrup, Jakob ; Strand, Siri H ; Cieza-Borrella, Clara ; Jakobsson, Magnus E LU ; Riedel, Maria ; Norgaard, Maibritt ; Hedensted, Stine ; Dagnaes-Hansen, Frederik ; Ulhoi, Benedicte Parm and Eeles, Rosalind , et al. (2020) In Oncogene
Abstract

Available tools for prostate cancer (PC) prognosis are suboptimal but may be improved by better knowledge about genes driving tumor aggressiveness. Here, we identified FRMD6 (FERM domain-containing protein 6) as an aberrantly hypermethylated and significantly downregulated gene in PC. Low FRMD6 expression was associated with postoperative biochemical recurrence in two large PC patient cohorts. In overexpression and CRISPR/Cas9 knockout experiments in PC cell lines, FRMD6 inhibited viability, proliferation, cell cycle progression, colony formation, 3D spheroid growth, and tumor xenograft growth in mice. Transcriptomic, proteomic, and phospho-proteomic profiling revealed enrichment of Hippo/YAP and c-MYC signaling upon FRMD6 knockout.... (More)

Available tools for prostate cancer (PC) prognosis are suboptimal but may be improved by better knowledge about genes driving tumor aggressiveness. Here, we identified FRMD6 (FERM domain-containing protein 6) as an aberrantly hypermethylated and significantly downregulated gene in PC. Low FRMD6 expression was associated with postoperative biochemical recurrence in two large PC patient cohorts. In overexpression and CRISPR/Cas9 knockout experiments in PC cell lines, FRMD6 inhibited viability, proliferation, cell cycle progression, colony formation, 3D spheroid growth, and tumor xenograft growth in mice. Transcriptomic, proteomic, and phospho-proteomic profiling revealed enrichment of Hippo/YAP and c-MYC signaling upon FRMD6 knockout. Connectivity Map analysis and drug repurposing experiments identified pyroxamide as a new potential therapy for FRMD6 deficient PC cells. Finally, we established orthotropic Frmd6 and Pten, or Pten only (control) knockout in the ROSA26 mouse prostate. After 12 weeks, Frmd6/Pten double knockouts presented high-grade prostatic intraepithelial neoplasia (HG-PIN) and hyperproliferation, while Pten single-knockouts developed only regular PIN lesions and displayed lower proliferation. In conclusion, FRMD6 was identified as a novel tumor suppressor gene and prognostic biomarker candidate in PC.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Oncogene
publisher
Nature Publishing Group
external identifiers
  • scopus:85096845517
  • pmid:33249427
ISSN
1476-5594
DOI
10.1038/s41388-020-01548-w
language
English
LU publication?
yes
id
e6c936aa-4f5b-4270-8fd0-ffad67d32601
date added to LUP
2020-12-10 10:28:53
date last changed
2024-04-17 20:43:04
@article{e6c936aa-4f5b-4270-8fd0-ffad67d32601,
  abstract     = {{<p>Available tools for prostate cancer (PC) prognosis are suboptimal but may be improved by better knowledge about genes driving tumor aggressiveness. Here, we identified FRMD6 (FERM domain-containing protein 6) as an aberrantly hypermethylated and significantly downregulated gene in PC. Low FRMD6 expression was associated with postoperative biochemical recurrence in two large PC patient cohorts. In overexpression and CRISPR/Cas9 knockout experiments in PC cell lines, FRMD6 inhibited viability, proliferation, cell cycle progression, colony formation, 3D spheroid growth, and tumor xenograft growth in mice. Transcriptomic, proteomic, and phospho-proteomic profiling revealed enrichment of Hippo/YAP and c-MYC signaling upon FRMD6 knockout. Connectivity Map analysis and drug repurposing experiments identified pyroxamide as a new potential therapy for FRMD6 deficient PC cells. Finally, we established orthotropic Frmd6 and Pten, or Pten only (control) knockout in the ROSA26 mouse prostate. After 12 weeks, Frmd6/Pten double knockouts presented high-grade prostatic intraepithelial neoplasia (HG-PIN) and hyperproliferation, while Pten single-knockouts developed only regular PIN lesions and displayed lower proliferation. In conclusion, FRMD6 was identified as a novel tumor suppressor gene and prognostic biomarker candidate in PC.</p>}},
  author       = {{Haldrup, Jakob and Strand, Siri H and Cieza-Borrella, Clara and Jakobsson, Magnus E and Riedel, Maria and Norgaard, Maibritt and Hedensted, Stine and Dagnaes-Hansen, Frederik and Ulhoi, Benedicte Parm and Eeles, Rosalind and Borre, Michael and Olsen, Jesper V and Thomsen, Martin and Kote-Jarai, Zsofia and Sorensen, Karina D}},
  issn         = {{1476-5594}},
  language     = {{eng}},
  month        = {{11}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Oncogene}},
  title        = {{FRMD6 has tumor suppressor functions in prostate cancer}},
  url          = {{http://dx.doi.org/10.1038/s41388-020-01548-w}},
  doi          = {{10.1038/s41388-020-01548-w}},
  year         = {{2020}},
}