cellular migration is a normal part of the normal development of the human being and , in certain pathologies , its alteration damages physiological performance , so that it is necessary to learn about its molecular and cellular foundations and establish methodologies to identify those molecules that modulate this cellular behavior . a screening method using zebra fish embryos is used to follow the advance in the migration of the lateral line primordium upon contact with a test compound . modulators n found are fenritinide , pgd2 and is - deoxy - pje2 . the invention refers to a biological method for the in vivo , fast , massive and simultaneous tracking of molecules capable of affecting cellular migration , in order to facilitate the for of potential candidates to be used in the diagnosis , prevention , and , principally , for the preparation of pharmaceutical compositions for the treatment of congenital pathologies , immune system dysfunctions , tissue regeneration failure , inflammation , cancer .