Understanding Prostate Cancer

James Gun

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Paperback

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English

IngramSpark
02 September 2023

Oncology; Urology & urogenital medicine; Coping with illness

Summary
Details

Prostate cancer is the second most common diagnosed cancer and the third most

common cause of death related to cancer among men in developed countries. Several

epidemiological studies, prospective cohort studies and animal tumour models state an

inverse relationship between selenium status and cancer incidence. Semethylselenocysteine

(SeMSC), present in garlic, onions, leeks and broccoli, has been

shown to be the most effective anti-carcinogenic selenium form in animal models. The aim

of the work presented in this thesis was to investigate the influence of selenium

compounds (Se-methylselenocysteine and selenomethionine) on prostate cancer

progression and metastasis using various human cell lines (LNCaP, DU145 and PC3).

Standard 2D gel and SILAC (stable isotope labelling with amino acids in cell culture)

proteomics were used, in combination with mass spectrometry, to identify seleniumresponsive

proteins. Resulting proteins were clustered and modelled around the prostate

cancer signalling pathway. IMPDH2, GPI, EZR and RGS10 were validated by western blot,

while PDIA3 and DDX5 showed a selenium response under serum depleted conditions.

Some proteins require more scrutinizing (galectin-1, XRCC5, TAGLN2, DDX5 and FLT) as

conflicting results were obtained during validation. Preliminary analysis using 2D gel

proteomics revealed galectin-1 to be selenium-responsive in PNT1A cells, although this

could not be confirmed by Western blot or an in-house ELISA. Previously, it has been

shown that SeMSC decreased the expression of collagen I and increased that of collagen

IV and collagen VI. A LNCaP 3D gel suspension model was developed to allow further

investigation of extracellular matrix components using fluorescence microscopy. In

addition, the effect of selenium exposure on the migration and invasion of PC3 cells was

investigated using a transwell kinetic assay and revealed a dose response increase,

especially under low baseline selenium concentrations. In order to optimize future

selenium in vitro projects the dynamics of several selenium biomarkers were investigated

using different conditions, enabling better comparison between cell lines and/or selenium

compounds.

By: James Gun
Imprint: IngramSpark
Country of Publication: United States
Dimensions: Height: 229mm, Width: 152mm, Spine: 13mm
Weight: 336g
ISBN: 9781088002438
ISBN 10: 1088002439
Pages: 224
Publication Date: 02 September 2023
Audience: General/trade , ELT Advanced
Format: Paperback
Publisher's Status: Unknown

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Understanding Prostate Cancer

James Gun

$60.95 $51.42

Paperback

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