Rabdosin B | CAS:84304-92-7 | Manufacturer ChemFaces

Rabdosin B shows cytotoxic activity against three human tumour HepG2, GLC-82 and HL-60 cell lines, it induces significant DNA damage to HepG2 cells in a time- and dose-dependent manner. Rabdosin B at higher concentrations inhibits root growth by affecting both cell length in the mature region and division of meristematic cells.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

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Regulation of cell division and growth in roots of Lactuca sativa L. seedlings by the Ent-Kaurene diterpenoid rabdosin B.[Pubmed: 20376693]

METHODS AND RESULTS:
Rabdosin B, an ent-kaurene diterpenoid purified from the air-dried aerial parts of Isodon japonica (Burm.f) Hara var. galaucocalyx (maxin) Hara, showed a biphasic, dose-dependent effect on root growth and a strong inhibitory effect on root hair development in lettuce seedlings (Lactuca sativa L.). Lower concentrations of Rabdosin B (20-80 microM) significantly promoted root growth, but its higher levels at 120-200 microM, by contrast, had inhibitory effects. Additionally, all tested concentrations (10-40 microM) inhibited root hair development of seedlings in a dose-dependent manner. Further investigations on the underlying mechanism revealed that the promotion effect of Rabdosin B at the lower concentrations resulted from increasing the cell length in the mature region and enhancing the mitotic activity of meristematic cells in seedlings' root tips. In contrast, Rabdosin B at higher concentrations inhibited root growth by affecting both cell length in the mature region and division of meristematic cells.
CONCLUSIONS:
Comet assay and cell cycle analysis demonstrated that the decrease of mitotic activity of root meristematic cells was due to DNA damage induced cell cycle retardation of the G(2) phase and S phase at different times.

Product Name	Rabdosin B
CAS No.:	84304-92-7
Catalog No.:	CFN92264
Molecular Formula:	C₂₄H₃₂O₈
Molecular Weight:	448.5 g/mol
Purity:	>=98%
Type of Compound:	Diterpenoids
Physical Desc.:	Cryst.
Source:	The herbs of Rabdosia japonica
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
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