Zinc and its relation to prostate tumours

Česká verzia

Authors: J. Gumulec ¹; M. Masařík ¹; R. Hrabec ²; A. Rovný ²; H. Binková ³; P. Babula ⁴; V. Adam ⁵; R. Kizek ⁵
Authors place of work: Ústav patologické fyziologie, Lékařská fakulta Masarykova univerzita Přednostka: prof. MUDr. Anna Vašků, CSc. ¹; Oddělení urologie, Fakultní nemocnice u sv. Anny, Brno Primář: MUDr. Arne Rovný ²; Klinika otorinolaryngologie a chirurgie hlavy a krku Lékařská fakulta, Masarykova univerzita Přednosta: prof. MUDr. Rom Kostřica, CSc. ³; Ústav přírodních léčiv, Veterinární a farmaceutická fakulta v Brně Děkan: doc. RNDr. Milan Žemlička, CSc. ⁴; Ústav chemie a biochemie, Mendelova univerzita v Brně Děkan: prof. Ing. Ladislav Zeman, CSc. ⁵
Published in the journal: Prakt. Lék. 2010; 90(8): 455-459
Category: Reviews

Summary

Zinc ions (Zn²⁺) are essential elements necessary for the normal function of mammalian cells. They participate in the regulation of the immune system, gene expression, energy metabolism, signal transduction and perform a structural function. However, an increased level of these ions is toxic, and so needs to be controlled. This control is primarily carried out by zinc transporters and zinc-binding proteins, in particular, metallothioneins. Prostatic tissue is very specific in Zn²⁺metabolism. Its cells accumulate a greater quantity of these ions (up to ten times more). Prostate cancer, a common cancer of men, is characterized by diverse and not very clear mechanisms, which serve to maintain Zn²⁺ levels. This unusual metabolism of Zn²⁺ has two important implications:

participation in the pathogenesis of the disease (due to apoptosis) and

increased serum levels of metallothioneins (with potential use of these proteins as markers for this disease).

Keywords:
zinc, metallothionein, thiols, resistance, tumour disease.

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