Shuttle Pharma's Selective HDAC Inhibitor Exhibits ATM Activation and Modulation of ER Expression Resulting in Substantial Growth Inhibition of Estrogen Receptor Positive Breast Cancer Cells, as Reported in PLOS ONE

SP-1-303, initially discovered and synthesized in Shuttle Pharma's laboratories by Dr. Grindrod, is one of the Company's pre-clinical selective Class I HDAC inhibitors. Histone deacetylase inhibitors sensitize cancers to the effects of radiation, protect normal tissues from radiation injury and activate the immune system. SP-1-303 is a selective Class I HDAC inhibitor that inhibits HDAC1, 3 and 6 and has direct cellular toxicity in ER + BC. Furthermore, SP-1-303 increases the PD-L1 expression level in a tim ...