Tubeimoside I

Catalog No.S3814 Batch:S381401

Technical Data

Formula	C₆₃H₉₈O₂₉
Molecular Weight	1319.43	CAS No.	102040-03-9
Solubility (25°C)*	In vitro	DMSO	100 mg/mL (75.79 mM)


* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description	Tubeimoside I (Lobatoside H, TBMS1), a triterpenoid saponin, isolated from the tubers of Bolbostemma paniculatum, shows potent antitumor and antitumor-promoting effects.
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^[1].
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^[2].

Protocol (from reference)

Cell Assay:^{^[1]}	Cell lines HepG2 cells, L-02 cells, HCCLM3 cells, or QSG-7701 cells Concentrations 5, 10, 15, 20, 30, 40, 90 μM Incubation Time 24, 48 and 72 h Method TBMS I cytotoxicity to cultured HepG2 cells, L-02 cells, HCCLM3 cells, or QSG-7701 cells are evaluated in terms of proliferation inhibition determined by the relative absorbance of MTT dye by the cells. In brief, cells (1×10⁴ cells/well) are seeded in 96-well tissue culture plates and then cultured in RPMI-1640 growth medium for 24 h. Subsequently, the medium is replaced with RPMI 1640 growth medium containing designated concentrations of TBMS I (5, 10, 15, 20, 30, 40, 90 μM). Cells treated with sham containing equal volume of cell culture medium but no TBMS I (0 μM) are used as control in every experiment throughout this study. After exposure to TBMS I for 24, 48 and 72 h, MTT dye is added into each well at a final concentration of 0.5 mg/ml, and the plates are incubated for an additional 4 h at 37 °C. The insoluble formazan produced by the living cells in response to MTT dye is collected and dissolved in DMSO and measured with an ELISA reader at the wavelength of 492 nm. Each plate contained multiple wells for a given experimental condition and multiple wells of control. The procedure is replicated three times.
Animal Study:^{^[2]}	Animal Models BALB/c mice Dosages 1, 2 or 4 mg/kg Administration i.p.

Cell Assay:^{^[1]}

Cell lines
HepG2 cells, L-02 cells, HCCLM3 cells, or QSG-7701 cells
Concentrations
5, 10, 15, 20, 30, 40, 90 μM
Incubation Time
24, 48 and 72 h
Method
TBMS I cytotoxicity to cultured HepG2 cells, L-02 cells, HCCLM3 cells, or QSG-7701 cells are evaluated in terms of proliferation inhibition determined by the relative absorbance of MTT dye by the cells. In brief, cells (1×10⁴ cells/well) are seeded in 96-well tissue culture plates and then cultured in RPMI-1640 growth medium for 24 h. Subsequently, the medium is replaced with RPMI 1640 growth medium containing designated concentrations of TBMS I (5, 10, 15, 20, 30, 40, 90 μM). Cells treated with sham containing equal volume of cell culture medium but no TBMS I (0 μM) are used as control in every experiment throughout this study. After exposure to TBMS I for 24, 48 and 72 h, MTT dye is added into each well at a final concentration of 0.5 mg/ml, and the plates are incubated for an additional 4 h at 37 °C. The insoluble formazan produced by the living cells in response to MTT dye is collected and dissolved in DMSO and measured with an ELISA reader at the wavelength of 492 nm. Each plate contained multiple wells for a given experimental condition and multiple wells of control. The procedure is replicated three times.

Animal Study:^{^[2]}

Animal Models
BALB/c mice
Dosages
1, 2 or 4 mg/kg
Administration
i.p.

References

RETURN POLICY
Selleck Chemical’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.

SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.