The effects of 2-deoxy-D-glucose and alpha-difluoromethylornithine on the growth of pancreatic cancer in vivo.

Abstract:

:The glycolytic inhibitor, 2-deoxy-D-glucose (2-DG), inhibits growth of some cancers. alpha-Difluoromethylornithine (DFMO) is an irreversible inhibitor of ornithine decarboxylase, the rate-limiting enzyme in polyamine biosynthesis. We and others have previously shown that DFMO inhibits cancer growth in a number of models. The present study was designed to investigate the effects of 2-DG alone and combined with DFMO on the growth of H2T hamster pancreatic ductal adenocarcinoma. Twenty-eight male Syrian golden hamsters were inoculated with 500,000 H2T cells, and then randomized into four groups of seven each: group 1 served as control; group 2 received DFMO (3% in drinking water); group 3 received 2-DG (500 mg/kg/day) intraperitoneally; group 4 received a combination of 2-DG and DFMO. Treatment began 5 days after tumor cell inoculation and continued for 28 days. At the end of the treatment period, the area of the H2T tumor was reduced 31% by DFMO compared with a 22% reduction caused by 2-DG. Tumor weight was significantly reduced (31%) by DFMO but not by 2-DG. Tumor contents of DNA, RNA, and protein were also reduced by DFMO but not 2-DG. Tumor concentration of the polyamines, putrescine and spermidine, were reduced by DFMO, but 2-DG did not alter levels of polyamines. The combination of DFMO and 2-DG caused a significantly greater reduction in tumor weight and putrescine content compared with DFMO alone.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Pancreas

journal_title

Pancreas

authors

Saydjari R,Alexander RW,Barranco SC,Townsend CM Jr,Thompson JC

doi

10.1097/00006676-198902000-00006

subject

Has Abstract

pub_date

1989-01-01 00:00:00

pages

38-43

issue

1

eissn

0885-3177

issn

1536-4828

journal_volume

4

pub_type

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