Oridonin

Modify Date: 2024-01-02 16:36:01

Oridonin Structure
Oridonin structure
 Common Name Oridonin
CAS Number 28957-04-2 Molecular Weight 364.433
Density 1.4±0.1 g/cm3 Boiling Point 599.8±50.0 °C at 760 mmHg
Molecular Formula C20H28O6 Melting Point 248-250ºC
MSDS Chinese USA Flash Point 215.0±23.6 °C
Symbol GHS08
GHS08		 Signal Word Warning

 Use of Oridonin


Oridonin, a diterpenoid isolated from Rabdosia rubescens, acts as an inhibitor of AKT, with IC50s of 8.4 and 8.9 μM for AKT1 and AKT2; Oridonin possesses anti-tumor, anti-bacterial and anti-inflammatory effects.

 Names

Name Kaur-16-en-15-one, 7,20-epoxy-1,6,7,14-tetrahydroxy-, (1a,6b,7a,14R)
Synonym More Synonyms

 Oridonin Biological Activity

Description Oridonin, a diterpenoid isolated from Rabdosia rubescens, acts as an inhibitor of AKT, with IC50s of 8.4 and 8.9 μM for AKT1 and AKT2; Oridonin possesses anti-tumor, anti-bacterial and anti-inflammatory effects.
Related Catalog
Target

Akt1:8.4 μM (IC50)

Akt2:8.9 μM (IC50)

In Vitro Oridonin is an ATP-competitive inhibitor of AKT with IC50s of 8.4 and 8.9 μM for AKT1 and AKT2, respectively. Oridonin (5, 10 or 20 μM) obviously inhibits the growth of KYSE70, KYSE410 and KYSE450 ESCC cells via targeting AKT1/2. Oridonin (10 or 20 μM) causes G2/M phase cell cycle arrest in KYSE70, KYSE410 and KYSE450 cells, and induces apoptosis in these three cell lines at 20 μM. In addition, Oridonin (5, 10 or 20 μM) in combination with cisplatin or 5-FU enhances the inhibition of esophageal squamous cell carcinoma (ESCC) cell growth[1]. Oridonin (0.1 and 1 μM) preferentially suppresses AKT/mTOR signaling. Oridonin (1 μM) also selectively suppresses growth of breast cancer cells with hyperactivation of AKT signaling[2].
In Vivo Oridonin (160 mg/kg, p.o.) shows significant reduction in the tumor growth without obvious weigh loss in SCID mice bearing EG9 and HEG18 tumor cells. Oridonin treatment also suppresses the expression of Ki-67, phosphorylated AKT, GSK-3β or mTOR in mice[1]. Oridonin (15 mg/kg, i.p.) impairs cell growth in breast cancer with hyperactivation of AKT signaling in nude mice[2].
Kinase Assay For the AKT kinase assay, the ADP-Glo™ Kinase Assay Kit is used. Active AKT1 or AKT2 kinase and inactive GSK-3β as substrate are mixed by 1× reaction buffer and then added to a white 96-well plate. Pure ATP provided in the kit is serially diluted obtain a final concentration of 0, 1, 10, 50, and 100 μM. GSK-3β is added to reach a final concentration of 2.5, 5, 10 or 20 μM and DMSO is used as a control. The mixed solution is incubated at room temperature and luciferase activity is measured using the Luminoskan Ascent plate reader[1].
Cell Assay Cells are seeded (6×103 cells/well for KYSE70; 2.5×103 cells/well for KYSE410; 2×103 cells/well for KYSE450) in 96-well plates and incubated for 24 h and then treated with different amounts of Oridonin or vehicle. After incubation for 24, 48 or 72 h, cell proliferation is measured by the MTT assay. For anchorage-independent cell growth assessment, cells (2.5, 5 or 10 μM Oridonin) suspended in complete medium are added to 0.3% agar with vehicle, 2.5, 5 or 10 μM Oridonin in a top layer over a base layer of 0.5% agar with vehicle, 2.5, 5 or 10 μM Oridonin. The cultures are maintained at 37°C in a 5% CO2 incubator for 3 weeks and then colonies are visualized under a microscope and counted using the Image-Pro Plus software program[1].
Animal Admin Mice[2] Breast cancer cells are harvested and resuspended in 40% Matrigel-Basement Membrane Matrix, LDEV-free, and then injected (100 μL per site) into the fourth pair of mammary fat pads of nude mice (CrTac: NCr-Foxn1nu). Tumors are measured in two dimensions using manual calipers. Tumor volume is calculated using the formula: Volume = 0.5 × length × width × width. Tumor volume is measured every 2-3 days. Upon harvesting, tumors are fixed in formalin overnight and then in 70% ethanol for histopathology analysis. Mice are treated with Oridonin (15 mg/kg) in 1% Pluronic F68 or vehicle (1% Pluronic F68) daily by intraperitoneal (IP) injection. BEZ235 is reconstituted 1:9 in 1-methyl-2 pyrolidone and polyethylene glycol 300 (PEG300) Mice are treated with this compound formulation at 45 mg/kg daily (QD) by oral gavage[2].
References

[1]. Song M, et al. Targeting AKT with oridonin inhibits growth of esophageal squamous cell carcinoma in vitro and patient derived xenografts in vivo. Mol Cancer Ther. 2018 Apr 25. pii: molcanther.0823.2017.

[2]. Sun B, et al. Oridonin inhibits aberrant AKT activation in breast cancer. Oncotarget. 2018 Feb 1;9(35):23878-23889.

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 599.8±50.0 °C at 760 mmHg
Melting Point 248-250ºC
Molecular Formula C20H28O6
Molecular Weight 364.433
Flash Point 215.0±23.6 °C
Exact Mass 364.188599
PSA 107.22000
LogP 1.44
Vapour Pressure 0.0±3.9 mmHg at 25°C
Index of Refraction 1.635
Storage condition 2-8°C
Water Solubility DMSO: >20mg/mL

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
NZ8177000
CHEMICAL NAME :
Kaur-16-en-15-one, 7-alpha,20-epoxy-1-alpha,6-beta,7,14-tetrahydroxy-, (14R)-
CAS REGISTRY NUMBER :
28957-04-2
LAST UPDATED :
198909
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C20-H28-O6
MOLECULAR WEIGHT :
364.48

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
35 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :
DNA inhibition
TEST SYSTEM :
Rodent - mouse Ascites tumor
DOSE/DURATION :
40 mg/L
REFERENCE :
CYLPDN Zhongguo Yaoli Xuebao. Acta Pharmacologica Sinica. Chinese Journal of Pharmacology. (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1- 1980- Volume(issue)/page/year: 9,465,1988

 Safety Information

Symbol GHS08
GHS08
Signal Word Warning
Hazard Statements H351
Precautionary Statements P281
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xn
Risk Phrases 40
Safety Phrases 36/37-24/25
RIDADR NONH for all modes of transport
RTECS NZ8177000
HS Code 2942000000

 Customs

HS Code 2942000000

 Articles29

More Articles
[Anti-tumor effect of tanshinone II A, tetrandrine, honokiol, curcumin, oridonin and paeonol on leukemia cell lines].

Sichuan Da Xue Xue Bao. Yi Xue Ban 43(3) , 362-6, (2012)

To study the anti-tumor effect of tanshinon II A, tetrandrine, honokiol, curcumin, oridonin and paeonol on leukemia cell lines SUP-B15, K562, CEM, HL-60 and NB4.To study the anti-tumor effect of tansh...

Induction of human CYP3A4 by huperzine A, ligustrazine and oridonin through pregnane X receptor-mediated pathways.

Pharmazie 69(7) , 532-6, (2014)

The pregnane X receptor (PXR) is a key regulator of CYP3A4, which is involved in catalyzing the metabolic conversion of a number of endogenous substrates. In this study, we screened 22 compounds isola...

The anticancer effect of oridonin is mediated by fatty acid synthase suppression in human colorectal cancer cells.

J. Gastroenterol. 48(2) , 182-92, (2013)

Fatty acid synthase (FAS) inhibitors could be a therapeutic target in cancer treatment. However, only a few FAS inhibitors showing clinical potential have been reported. Oridonin is a diterpenoid isol...

 Synonyms

ORIDONIN
Rubescensin
ISODONAL
(1α,5β,6β,7β,8α,9β,10α,13α,14R)-1,6,7,14-Tetrahydroxy-7,20-epoxykaur-16-en-15-one
RUBESCENSIN A
7a,20-Epoxy-1a,6b,7,14-tetrahydroxy-Kaur-16-en-15-one Isodonol
Isodonol
megathyrin A
Rabdosia rubescens
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