NSC 185058 是一种 ATG4B 抑制剂。ATG4B 是一种主要的半胱氨酸蛋白酶 (cysteine protease)。NSC185058 抑制 ATG4B 从而显著减弱自噬 (autophagic) 活性 体内活性 Information NSC185058 inhibitsATG4B, the lipidation of LC3B, and autophagy without affecting the MTOR or PtdIns3K pathways. NSC185058 is an ATG4B antagonist. ATG4B stimulates autophagy by promoting autophagosome formation through reversible modification of ATG8. Inclusion of the ATG4B inhibitor NSC185058 enhances the anti-tumor activity of radiation therapy (RT). NSC185058 decreases glioblastoma (GBM) cell tumorigenicity, and enhances the anti-tumor activity of RT when applied to orthotopic GBM xenograft models