Assessment of tracer 99mTc(V)-DMSA uptake as a measure of tumor cell proliferation in vitro.

Autor: Fatma J Al-Saeedi, Princy M Mathew, Yunus A Luqmani
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: PLoS ONE, Vol 8, Iss 1, p e54361 (2013)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0054361
Popis: 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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