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Chemical Structure| 52029-86-4 Chemical Structure| 52029-86-4

Structure of STO-609
CAS No.: 52029-86-4

Chemical Structure| 52029-86-4

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STO-609 is a selective CaMKK (calcium/calmodulin-dependent kinase) inhibitor with high affinity for CaMKK2, with an IC50 value of 0.1 μM. STO-609 is mainly used in research on cell cycle, metabolic regulation, and tumor biology.

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Product Details of STO-609

CAS No. :52029-86-4
Formula : C19H10N2O3
M.W : 314.29
SMILES Code : O=C(C1=C2C3=C(C4=NC5=CC=CC=C5N4C(C3=CC=C2)=O)C=C1)O
MDL No. :MFCD30685721

Safety of STO-609

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P305+P351+P338

Isoform Comparison

Biological Activity

Target
  • CaMKKβ

    CaM-KKβ, Ki:47 nM

  • CaMKKα

    CaM-KKα, Ki:0.25 μM

In Vitro:

Cell Line
Concentration Treated Time Description References
A549 cells 1, 2 or 5 µg ml−1 6 h To examine the effect of STO-609 on AMPK activity, results showed that STO-609 inhibited AMPK activity PMC3607316
LNCaP cells 5 µM 24 h Inhibited AR upregulation induced by SDHA/SDHB subunit silencing PMC8103094
Apc10.1 cells 0.01-10 μM 6 days To evaluate the effect of STO-609 on AMPK signaling, results showed that low concentrations of STO-609 activated AMPK and induced autophagy and senescence. PMC4827609
3T3-L1 cells 10 μg/mL 1 h Inhibition of Ca2+/Calmodulin-dependent protein kinase kinase (CaMKK) activity PMC7502539
HME cells 10 µM 48 h STO-609 caused cell cycle arrest and cell death in MYC and T58A HME cells. PMC7078291
SUM159PT cells 10 µM 2 h STO-609 decreased p-AMPK levels, indicating that AMPK activation is dependent on CAMKK2. PMC7078291

In Vivo:

Species
Animal Model
Administration Dosage Frequency Description References
Mice Pten null prostate cancer model Subcutaneous osmotic pump 15 mg/ml 6 weeks STO-609 treatment significantly reduced prostate weight and slowed prostate cancer progression. PMC6295249
Mice Breast cancer model Intraperitoneal injection 100 μM/kg Three times per week until the end of the experiment STO-609 inhibited CaMKK2, attenuated mammary tumor growth, and promoted the accumulation of CD8+ T cells and NK1.1+ T cells within the tumors. PMC6547743
Mice Destabilization of the medial meniscus (DMM) model Intraperitoneal injection 0.033 mg/kg Three times per week, for 8 or 12 weeks Inhibition or absence of CaMKK2 protected against DMM-associated destruction of the cartilage, subchondral bone alterations and synovial inflammation PMC8712369
Mice Non-alcoholic fatty liver disease (NAFLD) models Intraperitoneal injection 30 μM/kg Once daily for 4 weeks To evaluate the therapeutic effect of STO-609 on NAFLD, results showed that STO-609 significantly improved hepatic steatosis PMC5603587
Mice LNCaP xenograft model Oral 10 mg/kg Three times a week for 12 weeks IVM treatment significantly reduced tumor growth and PSA levels, and inhibited the activity of the p-CAMKK2/p-p38/p-Hsp27 axis PMC8103094
mice high-fat diet model oral 2.1 μg single dose To evaluate the effect of STO-609 on AMPK signaling, results showed that STO-609 activated AMPK and induced autophagy and senescence within 30 minutes. PMC4827609

Protocol

Bio Calculators
Preparing Stock Solutions 1mg 5mg 10mg

1 mM

5 mM

10 mM

3.18mL

0.64mL

0.32mL

15.91mL

3.18mL

1.59mL

31.82mL

6.36mL

3.18mL

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