Arsenic trioxide induces apoptosis preferentially in B-CLL cells of patients with unfavourable prognostic factors including del17p13.

Merkel O, Heyder C, Asslaber D, Hamacher F, Tinhofer I, Holler C, Stöcher M, Prokesch A, Papak C, Scheideler M, Trajanoski Z, Greil R.

http://www.ncbi.nlm.nih.gov/pubmed/18297255