Al-Saeedi FJ, Mathew PM, Luqmani YA. Assessment of tracer 99mTc(V)-DMSA uptake as a measure of tumor cell proliferation in vitro.
PLoS One 2013;
8:e54361. [PMID:
23335999 PMCID:
PMC3545874 DOI:
10.1371/journal.pone.0054361]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2012] [Accepted: 12/11/2012] [Indexed: 01/27/2023] Open
Abstract
PURPOSE
To examine whether (99m)Tc(V)-DMSA could be used as a non-invasive measure of cancer cell proliferation.
METHODS
Human breast cancer MCF-7, MDA-MB-231 and pII, and prostate cancer PC-3 cell lines were grown to 30, 50 and 100% confluency and pulsed with (99m)Tc(V)-DMSA in media for 60 min at 37°C. DNA synthesis was analysed by quantification of the S phase using flow cytometry, [methyl-(3)H]thymidine incorporation and expression of proliferation markers PCNA and Ki-67 using realtime PCR. One way ANOVA was used to compare groups.
RESULTS
In all cell lines rates of (99m)Tc(V)-DMSA uptake were inversely related to cell density. This was paralleled by similar trends in S phase proportions, [methyl-(3)H]thymidine incorporation and expression of PCNA and Ki-67.
CONCLUSION
Rates of (99m)Tc(V)-DMSA uptake into different types of tumour cells correlate well with cell density that is useful as a non-invasive measure of tumour cellular proliferation in vivo.
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