These authors describe screening for modifiers of the effects of expression of gastric cancer-associated mutant gene forms in the fly eye. Follow-up included a chick assay of angiogenesis.
Caldeira J, Simões-Correia J, Paredes J, Pinto MT, Sousa S, Corso G, Marrelli D, Roviello F, Pereira PS, Weil D, Oliveira C, Casares F, Seruca R. CPEB1, a novel gene silenced in gastric cancer: a Drosophila approach. Gut. 2012 Aug;61(8):1115-23. PubMed PMID: 22052064.
The candidate they followed up on is the fly orb gene (CPEB1 in humans).