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Androgen receptor with short polyglutamine tract preferably enhances Wnt/β-catenin-mediated prostatic tumorigenesis.

Publication ,  Journal Article
He, Y; Mi, J; Olson, A; Aldahl, J; Hooker, E; Yu, E-J; Le, V; Lee, D-H; Kim, WK; Robins, DM; Geradts, J; Sun, Z
Published in: Oncogene
April 2020

Polyglutamine (polyQ) tract polymorphism within the human androgen receptor (AR) shows population heterogeneity. African American men possess short polyQ tracts significantly more frequently than Caucasian American men. The length of polyQ tracts is inversely correlated with the risk of prostate cancer, age of onset, and aggressiveness at diagnosis. Aberrant activation of Wnt signaling also reveals frequently in advanced prostate cancer, and an enrichment of androgen and Wnt signaling activation has been observed in African American patients. Here, we assessed aberrant expression of AR bearing different polyQ tracts and stabilized β-catenin in prostate tumorigenesis using newly generated mouse models. We observed an early onset oncogenic transformation, accelerated tumor cell growth, and aggressive tumor phenotypes in the compound mice bearing short polyQ tract AR and stabilized β-catenin. RNA sequencing analysis showed a robust enrichment of Myc-regulated downstream genes in tumor samples bearing short polyQ AR versus those with longer polyQ tract AR. Upstream regulator analysis further identified Myc as the top candidate of transcriptional regulators in tumor cells from the above mouse samples with short polyQ tract AR and β-catenin. Chromatin immunoprecipitation analyses revealed increased recruitment of β-catenin and AR on the c-Myc gene regulatory locus in the tumor tissues expressing stabilized β-catenin and shorter polyQ tract AR. These data demonstrate a promotional role of aberrant activation of Wnt/β-catenin in combination with short polyQ AR expression in prostate tumorigenesis and suggest a potential mechanism underlying aggressive prostatic tumor development, which has been frequently observed in African American patients.

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Published In

Oncogene

DOI

EISSN

1476-5594

Publication Date

April 2020

Volume

39

Issue

16

Start / End Page

3276 / 3291

Location

England

Related Subject Headings

  • beta Catenin
  • Wnt Signaling Pathway
  • Sequence Analysis, RNA
  • Receptors, Androgen
  • Proto-Oncogene Proteins c-myc
  • Prostatic Neoplasms
  • Prostate
  • Peptides
  • Oncology & Carcinogenesis
  • Mice
 

Citation

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He, Y., Mi, J., Olson, A., Aldahl, J., Hooker, E., Yu, E.-J., … Sun, Z. (2020). Androgen receptor with short polyglutamine tract preferably enhances Wnt/β-catenin-mediated prostatic tumorigenesis. Oncogene, 39(16), 3276–3291. https://doi.org/10.1038/s41388-020-1214-7
He, Yongfeng, Jiaqi Mi, Adam Olson, Joseph Aldahl, Erika Hooker, Eun-Jeong Yu, Vien Le, et al. “Androgen receptor with short polyglutamine tract preferably enhances Wnt/β-catenin-mediated prostatic tumorigenesis.Oncogene 39, no. 16 (April 2020): 3276–91. https://doi.org/10.1038/s41388-020-1214-7.
He Y, Mi J, Olson A, Aldahl J, Hooker E, Yu E-J, et al. Androgen receptor with short polyglutamine tract preferably enhances Wnt/β-catenin-mediated prostatic tumorigenesis. Oncogene. 2020 Apr;39(16):3276–91.
He, Yongfeng, et al. “Androgen receptor with short polyglutamine tract preferably enhances Wnt/β-catenin-mediated prostatic tumorigenesis.Oncogene, vol. 39, no. 16, Apr. 2020, pp. 3276–91. Pubmed, doi:10.1038/s41388-020-1214-7.
He Y, Mi J, Olson A, Aldahl J, Hooker E, Yu E-J, Le V, Lee D-H, Kim WK, Robins DM, Geradts J, Sun Z. Androgen receptor with short polyglutamine tract preferably enhances Wnt/β-catenin-mediated prostatic tumorigenesis. Oncogene. 2020 Apr;39(16):3276–3291.

Published In

Oncogene

DOI

EISSN

1476-5594

Publication Date

April 2020

Volume

39

Issue

16

Start / End Page

3276 / 3291

Location

England

Related Subject Headings

  • beta Catenin
  • Wnt Signaling Pathway
  • Sequence Analysis, RNA
  • Receptors, Androgen
  • Proto-Oncogene Proteins c-myc
  • Prostatic Neoplasms
  • Prostate
  • Peptides
  • Oncology & Carcinogenesis
  • Mice