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Aberrant activation of hepatocyte growth factor/MET signaling promotes β-catenin-mediated prostatic tumorigenesis.

Publication ,  Journal Article
Aldahl, J; Mi, J; Pineda, A; Kim, WK; Olson, A; Hooker, E; He, Y; Yu, E-J; Le, V; Lee, D-H; Geradts, J; Sun, Z
Published in: J Biol Chem
January 10, 2020

Co-occurrence of aberrant hepatocyte growth factor (HGF)/MET proto-oncogene receptor tyrosine kinase (MET) and Wnt/β-catenin signaling pathways has been observed in advanced and metastatic prostate cancers. This co-occurrence positively correlates with prostate cancer progression and castration-resistant prostate cancer development. However, the biological consequences of these abnormalities in these disease processes remain largely unknown. Here, we investigated the aberrant activation of HGF/MET and Wnt/β-catenin cascades in prostate tumorigenesis by using a newly generated mouse model in which both murine Met transgene and stabilized β-catenin are conditionally co-expressed in prostatic epithelial cells. These compound mice displayed accelerated prostate tumor formation and invasion compared with their littermates that expressed only stabilized β-catenin. RNA-Seq and quantitative RT-PCR analyses revealed increased expression of genes associated with tumor cell proliferation, progression, and metastasis. Moreover, Wnt signaling pathways were robustly enriched in prostate tumor samples from the compound mice. ChIP-qPCR experiments revealed increased β-catenin recruitment within the regulatory regions of the Myc gene in tumor cells of the compound mice. Interestingly, the occupancy of MET on the Myc promoter also appeared in the compound mouse tumor samples, implicating a novel role of MET in β-catenin-mediated transcription. Results from implanting prostate graft tissues derived from the compound mice and controls into HGF-transgenic mice further uncovered that HGF induces prostatic oncogenic transformation and cell growth. These results indicate a role of HGF/MET in β-catenin-mediated prostate cancer cell growth and progression and implicate a molecular mechanism whereby nuclear MET promotes aberrant Wnt/β-catenin signaling-mediated prostate tumorigenesis.

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Published In

J Biol Chem

DOI

EISSN

1083-351X

Publication Date

January 10, 2020

Volume

295

Issue

2

Start / End Page

631 / 644

Location

United States

Related Subject Headings

  • beta Catenin
  • Signal Transduction
  • Proto-Oncogene Proteins c-met
  • Proto-Oncogene Mas
  • Prostatic Neoplasms
  • Prostate
  • Mice, SCID
  • Mice, Inbred C57BL
  • Male
  • Humans
 

Citation

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Aldahl, J., Mi, J., Pineda, A., Kim, W. K., Olson, A., Hooker, E., … Sun, Z. (2020). Aberrant activation of hepatocyte growth factor/MET signaling promotes β-catenin-mediated prostatic tumorigenesis. J Biol Chem, 295(2), 631–644. https://doi.org/10.1074/jbc.RA119.011137
Aldahl, Joseph, Jiaqi Mi, Ariana Pineda, Won Kyung Kim, Adam Olson, Erika Hooker, Yongfeng He, et al. “Aberrant activation of hepatocyte growth factor/MET signaling promotes β-catenin-mediated prostatic tumorigenesis.J Biol Chem 295, no. 2 (January 10, 2020): 631–44. https://doi.org/10.1074/jbc.RA119.011137.
Aldahl J, Mi J, Pineda A, Kim WK, Olson A, Hooker E, et al. Aberrant activation of hepatocyte growth factor/MET signaling promotes β-catenin-mediated prostatic tumorigenesis. J Biol Chem. 2020 Jan 10;295(2):631–44.
Aldahl, Joseph, et al. “Aberrant activation of hepatocyte growth factor/MET signaling promotes β-catenin-mediated prostatic tumorigenesis.J Biol Chem, vol. 295, no. 2, Jan. 2020, pp. 631–44. Pubmed, doi:10.1074/jbc.RA119.011137.
Aldahl J, Mi J, Pineda A, Kim WK, Olson A, Hooker E, He Y, Yu E-J, Le V, Lee D-H, Geradts J, Sun Z. Aberrant activation of hepatocyte growth factor/MET signaling promotes β-catenin-mediated prostatic tumorigenesis. J Biol Chem. 2020 Jan 10;295(2):631–644.

Published In

J Biol Chem

DOI

EISSN

1083-351X

Publication Date

January 10, 2020

Volume

295

Issue

2

Start / End Page

631 / 644

Location

United States

Related Subject Headings

  • beta Catenin
  • Signal Transduction
  • Proto-Oncogene Proteins c-met
  • Proto-Oncogene Mas
  • Prostatic Neoplasms
  • Prostate
  • Mice, SCID
  • Mice, Inbred C57BL
  • Male
  • Humans