MLN-120B

MLN-120B Property

storage temp. 

Store at -20°C

solubility 

insoluble in H2O; ≥13.2 mg/mL in DMSO; ≥8.53 mg/mL in EtOH with gentle warming and ultrasonic

form 

solid

color 

Off-white to light yellow

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P330Rinse mouth.

P501Dispose of contents/container to..…

MLN-120B Chemical Properties,Usage,Production

Uses

ML 120B is a novel competitive inhibitor of ATP and i-kappa-kinase-2 (IKK2), key regulator in the survival, proliferation and apoptosis resistance of lymphoma cells.

Biological Activity

mln120b is a potent and effective inhibitor of iκb kinase beta subunit (ikkβ) with ic50 value of 20 μm [1].ikk is an enzyme complex which is a part of the upstream of nf-κb signal transduction cascade. it is composed of three subunits, including ikkα, ikkβ and ikkγ. the ikkβ subunit is able to phosphorylate iκbα protein. normally, iκbα protein inactivate nf-κb transcription factors and keep them sequestering in inactive state in the cytoplasm. however, once iκbα protein is phosphorylated by ikkβ subunit, the iκbα protein will be dissociated from nf-κb transcription factor and thus remove the inactivation effect. therefore, the transcription of nf-κb will be activated. this signaling pathway is involved in many immune and inflammatory processes.in multiple myeloma cell line rpmi 8226 and ina 6, treatment of mln120b resulted in the dose-dependent inhibition of ikkβ-induced iκbα protein phosphorylation and subsequent nf-κb activation. additionally, it was observed that mln120b was able to block tnf-α-induced nf-κb activation in mm.1s cell line. these observations suggested the inhibitory action of mln120b on ikkβ. [1].in mouse model, polyarthritis was introduced in footpads, where ikkβ-induced nf-κb activation might result in a serial of advert effects. oral administration of mln120b (12 mg/kg twice daily) inhibited paw swelling in a dose-dependent manner, and offered protection against arthritis-induced weight loss. therefore, it could be implied that mln120b was able to inhibit ikkβ-induced nf-κb activation [2].

in vivo

target

IkappaB beta

IC 50

IKKβ: 60 nM (IC₅₀)

References

[1]. hideshima t, neri p, tassone p. mln120b, a novel ikappab kinase beta inhibitor, blocks multiple myeloma cell growth in vitro and in vivo. clin cancer res. 2006, 12(19): 5887-5894.
[2]. schopf l, savinainen a, anderson k. ikkbeta inhibition protects against bone and cartilage destruction in a rat model of rheumatoid arthritis. arthritis rheum. 2006, 54(10): 3163-3173.