About: Phthalates Deregulate Cell Proliferation, but Not Neuroendocrine Transdifferentiation, in Human LNCaP Prostate Cancer Cell Model     Goto   Sponge   NotDistinct   Permalink

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  • Phthalate esters are ubiquitous environmental pollutants widely used as plasticizers, which have been shown to interfere with both endocrine regulation and development of reproductive organs. In the present study, we examined the impact of diethylhexyl phthalate (DEHP) and dibutyl phthalate (DBP) on the proliferation of androgen-sensitive human prostate carcinoma LNCaP cells and related events. The results showed that both compounds were able to inhibit cell cycle progression in a dose-dependent manner. However, only DEHP was found to weakly reduce androgen receptor (AR) protein levels after long-term exposure, while only DBP partially inhibited expression of the prostate-specific antigen (KLK3) gene, a model AR transcriptional target. This indicated that inhibition of cell proliferation was likely independent of any AR modulations. Both phthalates induced suppression of cell proliferation, but none of them affected the levels of markers associated with neuroendocrine transdifferentiation (NED) in LNCaP cells. Taken together, the presented data indicate that phthalates may exert long-term negative effects on the proliferation of prostate epithelial cells derived from the carcinoma model, which are, nevertheless, largely independent of the modulation of AR expression/activity, and which do not alter further processes associated with NED.
  • Phthalate esters are ubiquitous environmental pollutants widely used as plasticizers, which have been shown to interfere with both endocrine regulation and development of reproductive organs. In the present study, we examined the impact of diethylhexyl phthalate (DEHP) and dibutyl phthalate (DBP) on the proliferation of androgen-sensitive human prostate carcinoma LNCaP cells and related events. The results showed that both compounds were able to inhibit cell cycle progression in a dose-dependent manner. However, only DEHP was found to weakly reduce androgen receptor (AR) protein levels after long-term exposure, while only DBP partially inhibited expression of the prostate-specific antigen (KLK3) gene, a model AR transcriptional target. This indicated that inhibition of cell proliferation was likely independent of any AR modulations. Both phthalates induced suppression of cell proliferation, but none of them affected the levels of markers associated with neuroendocrine transdifferentiation (NED) in LNCaP cells. Taken together, the presented data indicate that phthalates may exert long-term negative effects on the proliferation of prostate epithelial cells derived from the carcinoma model, which are, nevertheless, largely independent of the modulation of AR expression/activity, and which do not alter further processes associated with NED. (en)
Title
  • Phthalates Deregulate Cell Proliferation, but Not Neuroendocrine Transdifferentiation, in Human LNCaP Prostate Cancer Cell Model
  • Phthalates Deregulate Cell Proliferation, but Not Neuroendocrine Transdifferentiation, in Human LNCaP Prostate Cancer Cell Model (en)
skos:prefLabel
  • Phthalates Deregulate Cell Proliferation, but Not Neuroendocrine Transdifferentiation, in Human LNCaP Prostate Cancer Cell Model
  • Phthalates Deregulate Cell Proliferation, but Not Neuroendocrine Transdifferentiation, in Human LNCaP Prostate Cancer Cell Model (en)
skos:notation
  • RIV/00027162:_____/14:#0001177!RIV15-MZE-00027162
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, N, P(ED1.100/02/0123), P(EE2.3.30.0030)
http://linked.open...iv/cisloPeriodika
  • 2014
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 36533
http://linked.open...ai/riv/idVysledku
  • RIV/00027162:_____/14:#0001177
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • phthalates; prostate cancer cells; cell cycle modulation; neuroendocrine transdifferentiation; androgen receptor (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [A57407AF0D04]
http://linked.open...i/riv/nazevZdroje
  • Folia Biologica
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 60
http://linked.open...iv/tvurceVysledku
  • Machala, Miroslav
  • Hrubá, E.
  • Vondráček, J.
  • Pálková, Lenka
  • Souček, K.
  • Pernicová, Z.
http://linked.open...ain/vavai/riv/wos
  • 000343275800009
issn
  • 0015-5500
number of pages
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