J 2014

The role of high cell density in the promotion of neuroendocrine transdifferentiation of prostate cancer cells

PERNICOVÁ, Zuzana, Eva SLABÁKOVÁ, Radek FEDR, Šárka ŠIMEČKOVÁ, Josef JAROŠ et. al.

Základní údaje

Originální název

The role of high cell density in the promotion of neuroendocrine transdifferentiation of prostate cancer cells

Autoři

PERNICOVÁ, Zuzana (203 Česká republika), Eva SLABÁKOVÁ (203 Česká republika), Radek FEDR (203 Česká republika), Šárka ŠIMEČKOVÁ (203 Česká republika, domácí), Josef JAROŠ (203 Česká republika, domácí), Tereza SUCHÁNKOVÁ (203 Česká republika), Jan BOUCHAL (203 Česká republika), Gvantsa KHARAISHVILI (203 Česká republika), Milan KRÁL (203 Česká republika), Alois KOZUBÍK (203 Česká republika, domácí) a Karel SOUČEK (203 Česká republika, garant)

Vydání

Molecular Cancer, London, BioMed Central, 2014, 1476-4598

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10608 Biochemistry and molecular biology

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.257

Kód RIV

RIV/00216224:14110/14:00079025

Organizační jednotka

Lékařská fakulta

UT WoS

000209591200001

Klíčová slova anglicky

Androgen depletion; cAMP signaling; Cell cycle arrest; High cell density; Neuroendocrine transdifferentiation

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 16. 6. 2020 15:10, Mgr. Marie Šípková, DiS.

Anotace

V originále

Background: Tumor heterogeneity and the plasticity of cancer cells present challenges for effective clinical diagnosis and therapy. Such challenges are epitomized by neuroendocrine transdifferentiation (NED) and the emergence of neuroendocrine-like cancer cells in prostate tumors. This phenomenon frequently arises from androgen-depleted prostate adenocarcinoma and is associated with the development of castration-resistant prostate cancer and poor prognosis.Results: In this study, we showed that NED was evoked in both androgen receptor (AR)-positive and AR-negative prostate epithelial cell lines by growing the cells to a high density. Androgen depletion and high-density cultivation were both associated with cell cycle arrest and deregulated expression of several cell cycle regulators, such as p27Kip1, members of the cyclin D protein family, and Cdk2. Dual inhibition of Cdk1 and Cdk2 using pharmacological inhibitor or RNAi led to modulation of the cell cycle and promotion of NED. We further demonstrated that the cyclic adenosine 3, 5-monophosphate (cAMP)-mediated pathway is activated in the high-density conditions. Importantly, inhibition of cAMP signaling using a specific inhibitor of adenylate cyclase, MDL-12330A, abolished the promotion of NED by high cell density.Conclusions: Taken together, our results imply a new relationship between cell cycle attenuation and promotion of NED and suggest high cell density as a trigger for cAMP signaling that can mediate reversible NED in prostate cancer cells.

Návaznosti

EE2.3.20.0185, projekt VaV
Název: Centrum analýz a modelování tkání a orgánů