Phagocytes as carcinogens: Malignant transformation produced by human neutrophils

Sigmund A. Weitzman*, Alan B. Weitberg, Edward P. Clark, Thomas P. Stossel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

384 Scopus citations


In a study of the relation between chronic inflammation and carcinogenesis, C3H mouse fibroblasts of the 10T 1/2 clone 8 line (10T 1/2 cells) were exposed to human neutrophils stimulated to synthesize reactive oxygen intermediates or to a cell-free enzymatic system generating superoxide (xanthine oxidase plus hypoxanthine). After exposure, the 10T 1/2 cells were either placed in tissue culture or immediately injected into athymic nude mice. Both malignant and benign tumors developed in the mice injected with treated cells, but not in those injected with control cells; in one instance cells grown from one of the benign tumors subsequently developed a malignant phenotype. Malignant transformation was also observed in treated cells in the experiments in vitro.

Original languageEnglish (US)
Pages (from-to)1231-1233
Number of pages3
Issue number4691
StatePublished - 1985

ASJC Scopus subject areas

  • General


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