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- W2023873685 abstract "We have previously shown that a transforming factor-β species (TGFβ) is a hormonally regulated negative growth factor in estrogen responsive MCF-7 human breast cancer cells. We now demonstrate that androgen withdrawal leads to a significant stimulation of TGFβ-2 mRNA in the androgen-responsive human prostate carcinoma cell line LNCaP. These data indicate that TGFβ-2 is a marker of (anti)androgen action in human prostate cancer in vitro. Based on these results we addressed the question of whether THGβ-2 represented a marker of (anti)androgen action in prostate cancer in vivo: expression of TGFβ mRNA was determined by RNAase protection analysis in normal and malignant prostate tissue obtained from 9 prostate carcinoma patients without endocrine therapy. In parallel, the nuclear dihydrotestosterone (DHT) concentration was measured as an indicator of androgen stimulation in the same tissues. The following results were obtained. Both normal and cancerous tissues show nuclear accumulation of DHT indicating a functional androgen receptor system. TGFβ-2 is equally expressed in both normal and cancerous tissue. Expression of TGFβ-2 and nuclear DHT concentrations are correlated in both benign and malignant tissue. We conclude that TGFβ-2 is a marker of (anti)hormonal action in androgen-dependent tissue." @default.
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- W2023873685 title "Hormonal regulation of transforming growth factor β-2 expression in human prostate cancer" @default.
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- W2023873685 doi "https://doi.org/10.1016/0960-0760(93)90067-7" @default.
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