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Tubeimoside I Apoptosis related chemical

Cat.No.S3814

Tubeimoside I (Lobatoside H, TBMS1), a triterpenoid saponin, isolated from the tubers of Bolbostemma paniculatum, shows potent antitumor and antitumor-promoting effects.
Tubeimoside I Apoptosis related chemical Chemical Structure Tubeimoside I Apoptosis related chemical Chemical Structure

Chemical Structure

Molecular Weight: 1319.43

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Quality Control

Batch: S381401 DMSO]100 mg/mL]false]]]false]]]false Purity: 99.84%
99.84

Solubility

In vitro
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DMSO : 100 mg/mL (75.79 mM)
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In vivo
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Chemical Information, Storage & Stability

Molecular Weight 1319.43 Formula

C63H98O29

Storage (From the date of receipt)
CAS No. 102040-03-9 -- Storage of Stock Solutions

Synonyms Lobatoside H Smiles CC1C(C(C(C(O1)OC2C(C(COC2OC(=O)C34CCC(CC3C5=CCC6C(C5(CC4)C)(CCC7C6(CC(C8C7(COC(=O)CC(CC(=O)OC9C(C(COC9OC1C(C(C(OC1O8)CO)O)O)O)O)(C)O)C)O)C)C)(C)C)O)O)O)OC1C(C(C(CO1)O)O)O)O

Mechanism of Action

In vitro
TBMS I inhibits the proliferation of both HepG2 and L-02 cells in a dose- and time-dependent manner, but HepG2 cells appear more sensitive to the agent. When exposed to TBMS I for 24, 48 and 72 h, IC50 for HepG2 cells versus L-02 cells are 15.5 vs. 23.1, 11.7 vs. 16.2, 9.2 vs. 13.1 (μM, p<0.01), respectively. TBMS I induces cell shrinkage, nuclear condensation and fragmentation, cell cycle arrest at the G2/M phase, mitochondrial membrane disruption, release of cytochrome c from the mitochondria, activation of caspase 3 and 9, and shifting Bax/Bcl-2 ratio from being anti-apoptotic to pro-apoptotic, all indicative of initiation and progression of apoptosis involving mitochondrial dysfunction.
In vivo
TBMS1 significantly inhibits the production of the pro-inflammatory cytokines, TNF-α, IL-6 and IL-1β in vitro and in vivo. Pretreatment with TBMS1 markedly attenuates the development of pulmonary edema, histological severities and inflammatory cells infiltration in mice with acute lung injury (ALI). TBMS1 exerts an anti-inflammatory effect in vivo model of ALI through suppression of IkB activation and p38/extracellular signal-regulated kinase mitogen-activated protein kinases signaling in a dose-dependent manner. TBMS1 could be a potent anti-tumor agent by inducing apoptosis in a variety of cancer types via the mitochondrial-related signaling pathway.
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