Timosaponin AIII

SKU: orb1222278

Description

Timosaponin AIII induces autophagy in HeLa cells followed by apoptotic cell death (IC50: 10 μM). The Timosaponin AIII cellular response is mediated via inhibition of mTORC1 and induction of ER stress (IC50: 2.5 μM, BT474 cells; 6 μM, MDAMB231). The Timosaponin AIII pro-apoptotic response is selective for tumor cells over normal cells but autophagy is induced in both.

Key Properties

• CAS Number: 41059-79-4
• MW: 740.92
• Purity: >98% (HPLC)
• Formula: C₃₉H₆₄O₁₃
• SMILES: [C@]12([C@@H]3[C@H](C[C@H]1[C@H]1[C@H](CC2)[C@@]2([C@H](CC1)C[C@H](CC2)O[C@H]1[C@H](O[C@@H]2O[C@@H]([C@H]([C@@H]([C@H]2O)O)O)CO)[C@H]([C@H]([C@H](O1)CO)O)O)C)O[C@@]1([C@H]3C)CC[C@H](CO1)C)C
• Target: mTORC1
• Solubility: In Vitro: DMSO : 125 mg/mL (168.71 mM)

Bioactivity

• In Vivo:
  Of the tested steroidal saponins, Timosaponin AIII (TA3) most potently improves memory deficits. Timosaponin AIII increases the scopolamine-induced reduction in step-through latency by 17% (10 mg/kg), 28% (20 mg/kg), and 43% (40 mg/kg). During the acquisition trial, no differences in latent time are observed. Timosaponin AIII (20, 40 mg/kg, p.o.) potently inhibits this reduction of acetylcholine in scopolamine-treated mouse brain. The inhibitory effect of Timosaponin AIII is comparable to that of tacrine, which is used as a positive control.
• In Vitro:
  Timosaponin AIII could inhibit acetylcholinesterase (AChE) activity, with an IC50 of 35.4 μM. Timosaponin AIII is identified as a major selective cytotoxic activity in BN108, and its selective cytotoxic activity involves inhibition of mTOR, induction of ER stress and protective autophagy.

Storage & Handling

• Storage: Storage temperature: -20°C. Stability: ≥ 2 years
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

Alternative Names

Timosaponin AIII

Quick Database Links

Gene Symbol

mTORC1