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APTO-253

CAS No. : 916151-99-0

MCE 国际站：APTO-253

产品活性：APTO-253 (LOR-253) 是一种小分子，可抑制c-Myc表达，稳定 G-四链体 DNA 并诱导急性髓样白血病细胞的细胞周期停滞和凋亡。APTO-253 通过诱导 Kruppel-like factor 4 (KLF4) 抑癌因子介导抗癌活性。APTO-253 具有抗关节炎活性。

研究领域：Apoptosis  |  MAPK/ERK Pathway

作用靶点：c-Myc  |  KLF  |  Apoptosis

In Vitro: APTO-253 (LOR-253) is an inducer of KLF4. APTO-253 (5 μM) induces KLF4 expression, and enhances apoptosis induced by NSC 119875 in both SKOV3 and OVCAR3 cells. APTO-253 (5 μM) also leads to G1 phase arrest and reduces S and G2/M phase cells in SKOV3 and OVCAR3 cells.
APTO-253 is cytotoxic to Raji and Raji/253R cell lines, with IC₅₀s of 105 ± 2.4 nM and 1387 ± 94 nM, respectively. APTO-253 (0.5 μM) also causes DNA damage in Raji cells. BRCA1/2 deficient cells are hypersensitive to APTO-253. ABCG2 overexpressed HEK-293 cells are resistant to APTO-253 and inhibition of ABCG2 reverses resistance to APTO-253 in Raji/253R.
APTO-253 suppresses the proliferation of acute myeloid leukemia (AML) cell lines and various forms of lymphoma cell lines with IC₅₀s ranging from 57 nM to 1.75 µM. APTO-253 (500 nM) also causes G0/G1 cell cycle arrest, induces apoptosis, and down regulates MYC RNA and protein expression in AML lines. APTO-253 (500 nM) leads to DNA damage response pathways in MV4-11 cells. Futhermore, APTO-253 is a potent stabilizer of Gquadruplex (G4) motifs, and demonstrates the greatest propensity for stabilizing the MYC G4 sequences.

In Vivo: APTO-253 (LOR-253; 15 mg/kg; IV; twice per day for 2 consecutive days per week for 14 days) has antiarthritic activity in a CIA model.

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