2. Autophagy
  3. Autophagy
  4. Glaucocalyxin B

Glaucocalyxin B 

Cat. No.: HY-N2113 Purity: 99.39%
COA Handling Instructions

Glaucocalyxin B is an ent kaurane diterpenoid isolated from the Chinese traditional medicine Rabdosia japonica with anticancer and antitumor activity; decreases the growth of HL-60 cells with an IC50 of approximately 5.86 μM at 24 h.

For research use only. We do not sell to patients.

Glaucocalyxin B Chemical Structure

Glaucocalyxin B Chemical Structure

CAS No. : 80508-81-2

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Solution
10 mM * 1 mL in DMSO USD 362 In-stock
Solid + Solvent
10 mM * 1 mL
ready for reconstitution
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Solid
1 mg USD 200 In-stock
5 mg USD 440 In-stock
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Based on 1 publication(s) in Google Scholar

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Description

Glaucocalyxin B is an ent kaurane diterpenoid isolated from the Chinese traditional medicine Rabdosia japonica with anticancer and antitumor activity; decreases the growth of HL-60 cells with an IC50 of approximately 5.86 μM at 24 h.

IC50 & Target

IC50: 5.86 μM (HL-60 cell Growth)[1]
In Vitro

Glaucocalyxin A (GlnA) and (GlnB) dose-dependently decrease the growth of HL-60 cells with an IC50 of approximately 6.15 and 5.86 µM at 24 h, respectively. Both Gln A and B could induce apoptosis, G2/M-phase cycle arrest, DNA damage and the accumulation of reactive oxygen species (ROS) in HL-60 cells[1]. GlnB inhibits the proliferation of human cervical cancer cells in vitro through the induction of apoptosis andautophagy, which may be mediated by the phosphatidylinositol 4,5 bisphosphate 3 kinase/Akt signaling pathway. Treatment with GlnB inhibits the proliferation of HeLa and SiHa cervical cancer cell lines in a dose dependent manner. GlnB increases the apoptotic cell population of and enhanced poly (ADP ribose) polymerase 1 cleavage. GlnB also induces increased light chain 3 II/I protein cleavage, indicating the induction of autophagy. GlnB treatment increases the expression of phosphatase and tensin homolog and decreases the expression of phosphorylated protein kinase B[2]. Glaucocalyxin B (GLB), one of five ent-kauranoid diterpenoids, significantly decreased the generation of nitric oxide (NO), tumor necrosis factor (TNF)-α, interleukin (IL)-1β, cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS) in the lipopolysaccharide (LPS)-activated microglia cells[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight

374.47

Appearance

Solid

Formula

C22H30O5
CAS No.
SMILES
Structure Classification
Source
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (267.04 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.6704 mL 13.3522 mL 26.7044 mL
5 mM 0.5341 mL 2.6704 mL 5.3409 mL
10 mM 0.2670 mL 1.3352 mL 2.6704 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 1.25 mg/mL (3.34 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 1.25 mg/mL (3.34 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 1.25 mg/mL (3.34 mM); Clear solution

*All of the co-solvents are available by MCE.
Purity & Documentation
References
Cell Assay
[3]

The microglia cells viability is assessed by MTT assay. Cells are seeded in 96-well plates at the density of 5 × 104 cells/well. The cell culture supernatant is discarded after treatment with various agents, and then 30 μL of MTT (0.5 mg/mL) solution is added into each well. After incubation for 4 h at 37 °C, 100 μL of DMSO is added into each well to dissolve the formazan dye, and then the absorbance of solubilized formazan is measured by microplate reader[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References
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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Keywords:

Glaucocalyxin B80508-81-2AutophagyInhibitorinhibitorinhibit

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