Microbeam X-ray fluorescence mapping of Cu and Fe in human prostatic carcinoma cell lines using synchrotron radiation

Karolynne José Rocha; Roberta Gama Leitão; Eliane Oliveira Barros; Maria Aparecida Oliveira; Catarine Gondim Canellas; Marcelino José Anjos; Luiz Eurico Nasciutti; Ricardo Tadeu Lopes

doi:10.15392/bjrs.v7i2A.608

Authors

Karolynne José Rocha Nuclear Instrumentation Laboratory/Federal University of Rio de Janeiro
Roberta Gama Leitão Physics Institute/Stated University of Rio de Janeiro
Eliane Oliveira Barros Institute of Biomedical Sciences/Federal University of Rio de Janeiro
Maria Aparecida Oliveira Institute of Biomedical Sciences/Federal University of Rio de Janeiro
Catarine Gondim Canellas Physics Institute/Stated University of Rio de Janeiro
Marcelino José Anjos Physics Institute/Stated University of Rio de Janeiro
Luiz Eurico Nasciutti Institute of Biomedical Sciences/Federal University of Rio de Janeiro
Ricardo Tadeu Lopes Nuclear Instrumentation Laboratory/Federal University of Rio de Janeiro

DOI:

https://doi.org/10.15392/bjrs.v7i2A.608

Keywords:

X-Ray, microfluorescence, cancer

Abstract

Cancer is a worldwide public health problem and prostate cancer continues to be one of the most common fatal cancers in men. Copper plays an important role in the aetiology and growth of tumours however, whether intratumoral copper is actually elevated in prostate cancer patients has not been established. Iron, an important trace element, plays a vital function in oxygen metabolism, oxygen uptake, and electron transport in mitochondria, energy metabolism, muscle function, and hematopoiesis. The X-ray microfluorescence technique (μXRF) is a rapid and non-destructive method of elemental analysis that provides useful elemental information about samples without causing damage or requiring extra sample preparations. This study investigated the behavior of cells in spheroids of human prostate cells, tumour cell line (DU145) and normal cell line (RWPE-1), after supplementation with zinc chloride by 24 hours using synchrotron X-ray microfluorescence (μSRXRF). The measurements were performed with a standard geometry of 45º of incidence, excited by a white beam using a pixel of 25 μm and a time of 300 ms/pixel at the XRF beamline at the Synchrotron Light.

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