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Pharmacokinetics of the thymidine analog 2'-fluoro-5-methyl-1-beta-D-arabinofuranosyluracil (FMAU) in tumor-bearing rats.

Abstract：

:The thymidine analog 2'-fluoro-5-methyl-1-beta-D-arabinofuranosyluracil (FMAU) is incorporated into DNA and is resistant to catabolism. We performed pharmacokinetic measurements with [(14)C]FMAU and PET studies with [(11)C]FMAU using rats bearing several different syngeneic tumors. Among normal tissues, FMAU uptake reflected relative cell turnover rates. Among tumors, the highest uptake occurred in a rapidly growing colon carcinoma, but was similarly low in both rapidly and slowly growing prostate tumors. FMAU was not catabolized and was rapidly incorporated into DNA by small intestine and colon tumors. Results indicate that FMAU may be useful for imaging tissue DNA synthesis, although tumor uptake was modest and not well correlated with growth rate among the models examined.

journal_name

Nucl Med Biol

journal_title

Nuclear medicine and biology

authors

Bading JR,Shahinian AH,Vail A,Bathija P,Koszalka GW,Koda RT,Alauddin MM,Fissekis JD,Conti PS

doi

10.1016/j.nucmedbio.2004.01.001

keywords:

subject

Has Abstract

pub_date

2004-05-01 00:00:00

pages

407-18

issue

4

eissn

0969-8051

issn

1872-9614

pii

S0969805104000174

journal_volume

31

pub_type

杂志文章

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