after being isolated from the blood of als patients could be cultivated in cell culture media the standard protocols on which this was based are described in lindl t bauer j zell und gewebekultur published by g fischer verlag stuttgart 1987 that said cells after enrichment and in co cultivation with nerve cells and serum of als patients develop a cytotoxic activity resulting in the destruction of the nerve cells that it is possible to block said cytotoxic activity by the addition of various soluble factors a by monoclonal antibodies against fc u03b3 receptors at a concentration of between 20 and 100 u03bcmol b by soluble fc u03b3 receptors at a concentration of between 10 and 60 u03bcmol c by anti sense messenger ribonucleic acid species mrna which are complementary to fc u03b3 receptor specific mrna sequences e g 20 u03bcmol of a no 23 anti sense oligonucleotide derived from embl gene bank fc u03b3riii sequence x16863 d by protein v isolated from gardnerella vaginalis ep 0595997 at concentrations of between 150 to 170 u03bcmol in the simultaneous presence of serum from als patients consequently the solution according to the invention is the blocking of the fc u03b3 receptor mediated cytotoxic activity of the als specific fc u03b3 receptor positive immune cells or the blocking or the inactivation of fc u03b3 receptors or the destruction.