The Rexinoids LG100268 and LG101506 Inhibit Inflammation and Suppress Lung Carcinogenesis in A/J Mice.

LG101506 was originally synthesized to overcome some of the undesirable side effects of rexinoids. We compared the anticarcinogenic action of LG101506 and LG100268 and for the first time showed that both drugs are useful for prevention of lung cancer in A/J mice. These molecules markedly reduced tumor number, tumor size, and total tumor burden, when chronically administered to A/J mice that had been initiated with the mutagenic carcinogen, vinyl carbamate.