dr. schiffman because of a small brain tumor. other children, with li- fraumeni, are frequently screened and the family takes part in dr. schiffman's research in any way they can. >> i've kind of put hope in him, by choosing to have children knowing that there's a chance they could have the gene. >> reporter: but you understand this is years off, if ever. >> oh, yeah, yeah, if ever, yeah. who knows. >> reporter: and that is where dr. avi schroeder comes in. dr. schroeder of technion, the israel institute of technology, joined the research several months ago, with the goal of developing a drug for humans that would mimic the elephant's robust p-53. >> now there's a delivery issue, how can we get that protein to the disease site, into the cancer cells, to act and to perform the therapeutic activity on site. we're going to wrap the proteins inside a nanoparticle, and they'll release the protein inside the cancer cells. >> reporter: and if everything works, the cancer cell will be killed? >> yes, the cancer cell will go into a death