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Atomic Absorbance Spectroscopy to Measure Intracellular Zinc Pools in Mammalian Cells
Published on: May 16, 2019
Correlation between ZIP2 messenger RNA expression and zinc level in rat lateral prostate
Kazuhiro Iguchi1, Takashi Otsuka, Shigeyuki Usui
1Laboratory of Pharmaceutics, Gifu Pharmaceutical University, Mitahora-higashi, Gifu, Gifu 502-8585, Japan.
Biological Trace Element Research
|October 10, 2006
Summary
This study reveals that the ZIP2 transporter plays a key role in maintaining zinc levels within the rat lateral prostate. ZIP2 expression is linked to prostate zinc homeostasis and is regulated by testosterone.
Area of Science:
- Urology
- Molecular Biology
- Nutritional Science
Background:
- The lateral prostate (LP) exhibits higher zinc concentrations than other rat tissues.
- The specific mechanisms responsible for zinc retention in the prostate are not fully understood.
Purpose of the Study:
- To investigate the role of the ZRT, IRT-like protein (ZIP) family transporter, specifically ZIP2, in regulating zinc homeostasis in the rat prostate.
Main Methods:
- Quantitative analysis of zinc levels in rat lateral, ventral, and dorsal prostate tissues.
- Assessment of ZIP2 mRNA expression in rat prostate tissues.
- Evaluation of the effects of castration and testosterone replacement on ZIP2 expression and zinc levels in the LP.
Main Results:
- Rat LP demonstrated significantly higher zinc levels compared to VP and DP.
- ZIP2 mRNA was highly expressed in the LP.
- Castration led to decreased ZIP2 expression and reduced LP zinc levels, effects reversed by testosterone replacement.
- A positive correlation was observed between ZIP2 expression levels and LP zinc content.
Conclusions:
- The ZIP2 transporter is actively involved in maintaining zinc homeostasis in the rat lateral prostate.
- Testosterone significantly influences ZIP2 expression and, consequently, prostate zinc levels.
