Complex sentence: Blocking antibodies can be used in a variety of medical and scientific manners, thus far been to treat cancerGandraves' disease, and prevent the growth of malaria in mosquitoes.
Split into simpler sentences: Blocking antibodies can be used in a variety of medical and scientific manners. They have thus far been used experimentally to treat cancer, Graves' disease, and prevent the growth of malaria in mosquitoes.