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The β2-Adrenergic R...
The β2-Adrenergic Receptor Is a Molecular Switch for Neuroendocrine Transdifferentiation of Prostate Cancer Cells
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- Braadland, Peder R. (författare)
- Oslo university hospital,University of Oslo
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- Ramberg, Håkon (författare)
- Oslo university hospital
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- Grytli, Helene Hartvedt (författare)
- Oslo university hospital
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- Urbanucci, Alfonso (författare)
- University of Oslo,Oslo university hospital
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- Nielsen, Heidi Kristin (författare)
- University of Oslo,Oslo university hospital
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- Guldvik, Ingrid Jenny (författare)
- Oslo university hospital
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- Engedal, Andreas (författare)
- Oslo university hospital
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- Ketola, Kirsi (författare)
- University of Eastern Finland
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- Wang, Wanzhong (författare)
- Karolinska University Hospital
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- Svindland, Aud (författare)
- University of Oslo,Oslo university hospital
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- Mills, Ian G. (författare)
- University of Oxford,Queen's University Belfast,University of Oslo
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- Bjartell, Anders (författare)
- Lund University,Lunds universitet,Urologisk cancerforskning, Malmö,Forskargrupper vid Lunds universitet,Urological cancer, Malmö,Lund University Research Groups,Skåne University Hospital
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- Taskén, Kristin Austlid (författare)
- Oslo university hospital,University of Oslo
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(creator_code:org_t)
- 2019
- 2019
- Engelska 15 s.
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Ingår i: Molecular cancer research : MCR. - 1557-3125. ; 17:11, s. 2154-2168
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The incidence of treatment-related neuroendocrine prostate cancer (t-NEPC) is rising as more potent drugs targeting the androgen signaling axis are clinically implemented. Neuroendocrine transdifferentiation (NEtD), an putative initial step in t-NEPC development, is induced by androgen-deprivation therapy (ADT) or anti-androgens, and by activation of the β2-adrenergic receptor (ADRB2) in prostate cancer cell lines. Thus, understanding whether ADRB2 is involved in ADT-initiated NEtD may assist in developing treatment strategies that can prevent or reverse t-NEPC emergence, thereby prolonging therapeutic responses. Here we found that in primary, treatment-naïve prostate cancers, ADRB2 mRNA was positively correlated with expression of luminal differentiation markers, and ADRB2 protein levels were inversely correlated with Gleason grade. ADRB2 mRNA was upregulated in metastatic prostate cancer, and progressively downregulated during ADT and t-NEPC emergence. In androgen-deprivated medium, high ADRB2 was required for LNCaP cells to undergo NEtD, measured as increased neurite outgrowth and expression of neuron differentiation and neuroendocrine genes. ADRB2 overexpression induced a neuroendocrine-like morphology in both androgen receptor (AR)-positive and -negative prostate cancer cell lines. ADRB2 downregulation in LNCaP cells increased canonical Wnt signaling, and GSK3α/β inhibition reduced the expression of neuron differentiation and neuroendocrine genes. In LNCaP xenografts, more pronounced castration-induced NEtD was observed in tumors derived from high than low ADRB2 cells. In conclusion, high ADRB2 expression is required for ADT-induced NEtD, characterized by ADRB2 downregulation and t-NEPC emergence. IMPLICATIONS: This data suggest a potential application of β-blockers to prevent cancer cells committed to a neuroendocrine lineage from evolving into t-NEPC.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
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Braadland, Peder ...
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Ramberg, Håkon
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Grytli, Helene H ...
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Urbanucci, Alfon ...
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Nielsen, Heidi K ...
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Guldvik, Ingrid ...
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visa fler...
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Engedal, Andreas
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Ketola, Kirsi
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Wang, Wanzhong
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Svindland, Aud
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Mills, Ian G.
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Bjartell, Anders
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Taskén, Kristin ...
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