Production of Leukemia and Stomach Neoplasms in Swiss, RF, BALB/c, and C3H Female Mice by Feeding N-[4-(5-Nitro-2-furyl)-2-thiazolyl] acetamide

S. M. Cohen, George T. Bryan

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

N-[4-(5-Nitro-2-furyl)-2-thiazolyl] acetamide was fed to female 5-week-old Swiss mice at a dose of 0.1% by weight of diet for 13 weeks, with a cumulative dose of 490 mg/mouse/ 13 weeks. The mice were observed for an additional 14-week period while being fed control diet. Because of the sudden appearance of leukemia during the 13th week and cannibalization of moribund mice by other mice, only 16 mice survived at least 17 weeks to be grossly and microscopically evaluated. Of these, 15 had generalized lymphocytic leukemia and 3 had squamous cell tumors of the stomach. In the control group of 56 mice, no cancers were detected during the 27-week period of observation. For determination of the effect of dosage, groups of 30 female 5-week-old Swiss mice were fed NFTA at dietary levels of 0.1, 0.05, 0.025, and 0.01% for 14 weeks. The respective leukemia incidences were 8/9, 9/13, 8/16, and 7/14. The latent period was 12 weeks for the 0.1 and 0.05% groups and 18 weeks for the 0.025 and 0.01% groups. Stomach tumors were present in 12/52 mice. In the control group of 35 mice, 1 mouse developed a pulmonary adenoma. RF, BALB/c, and C3H female mice, regarded as having a low incidence of spontaneous leukemia, were as susceptible to the leukemogenic effect of NFTA as were Swiss mice. The following incidences of leukemia were observed after 14 weeks of feeding a diet composed of 0.1% NFTA: RF, 12/16 (controls, 3/16); BALB/c, 21/29; C3H, 12/24; and Swiss, 22/22. A low incidence of stomach tumors was found in all NFTA-treated groups.

Original languageEnglish (US)
Pages (from-to)2320-2325
Number of pages6
JournalCancer Research
Volume30
Issue number9
StatePublished - Sep 1970

Fingerprint

Inbred C3H Mouse
Stomach Neoplasms
Leukemia
Stomach
Incidence
Diet
furothiazole
Neoplasms
Lymphoid Leukemia
Control Groups
Adenoma
Epithelial Cells
Observation

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Production of Leukemia and Stomach Neoplasms in Swiss, RF, BALB/c, and C3H Female Mice by Feeding N-[4-(5-Nitro-2-furyl)-2-thiazolyl] acetamide. / Cohen, S. M.; Bryan, George T.

In: Cancer Research, Vol. 30, No. 9, 09.1970, p. 2320-2325.

Research output: Contribution to journalArticle

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abstract = "N-[4-(5-Nitro-2-furyl)-2-thiazolyl] acetamide was fed to female 5-week-old Swiss mice at a dose of 0.1{\%} by weight of diet for 13 weeks, with a cumulative dose of 490 mg/mouse/ 13 weeks. The mice were observed for an additional 14-week period while being fed control diet. Because of the sudden appearance of leukemia during the 13th week and cannibalization of moribund mice by other mice, only 16 mice survived at least 17 weeks to be grossly and microscopically evaluated. Of these, 15 had generalized lymphocytic leukemia and 3 had squamous cell tumors of the stomach. In the control group of 56 mice, no cancers were detected during the 27-week period of observation. For determination of the effect of dosage, groups of 30 female 5-week-old Swiss mice were fed NFTA at dietary levels of 0.1, 0.05, 0.025, and 0.01{\%} for 14 weeks. The respective leukemia incidences were 8/9, 9/13, 8/16, and 7/14. The latent period was 12 weeks for the 0.1 and 0.05{\%} groups and 18 weeks for the 0.025 and 0.01{\%} groups. Stomach tumors were present in 12/52 mice. In the control group of 35 mice, 1 mouse developed a pulmonary adenoma. RF, BALB/c, and C3H female mice, regarded as having a low incidence of spontaneous leukemia, were as susceptible to the leukemogenic effect of NFTA as were Swiss mice. The following incidences of leukemia were observed after 14 weeks of feeding a diet composed of 0.1{\%} NFTA: RF, 12/16 (controls, 3/16); BALB/c, 21/29; C3H, 12/24; and Swiss, 22/22. A low incidence of stomach tumors was found in all NFTA-treated groups.",
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