July 19, 2024 -- Shuttle Pharmaceuticals Holdings, Inc. (Nasdaq: SHPH), (“Shuttle Pharma”), a discovery and development stage specialty pharmaceutical company focused on improving outcomes for cancer patients treated with radiation therapy (RT), today announced the publication of a manuscript reporting on the ability of one of the Company’s HDAC inhibitor pre-clinical assets, SP-1-303, which exhibits ataxia-telangiectasia mutated protein (ATM) activation and modulation of estrogen receptor expr