ATM and head and neck cancer: Furthermore, it has been reported that beta-emitting radionuclides attached to liposomes showed promising results when applied intratumorally and gold nanoparticles or nanoparticles with antisense oligonucleotides against the gene ataxia-telangiectasia-mutated (ATM) improved radiosensitivity in rodent head and neck cancer models [14-16].