LRRK2-IN-1 - Calbiochem (C15-1303-575)

General description

A cell-permeable, ATP competitive, potent, and selective LRRK2 inhibitor (IC₅₀ of 13 nM, 6 nM, and 2.45 µM for wild type, G2019S mutant, and drug resistant A2016T mutant LRRK2, respectively, in an in vitro ATP-site competititon binding assay). While it is shown to inhibit DCLK2 (IC₅₀ = 45 nM) and suppress MAPK7 autophosphorylation (EC₅₀ = 160 nM), this compound (<10 µM) demonstrates very good overall selectivity, targeting 12 out of 442 other kinases in a kinase-binding and biochemical assay. At 0.05–3 µM, it induces dose-dependent inhibition of Ser910 and Ser935 phosphorylation accompanied by loss of 14-3-3 binding to both wild-type LRRK2 and LRRK2[G2019S] in stably transfected HEK293 cells, but not in the drug-resistant LRRK2[A2016T] and LRRK2[A2016T + G2019S] mutants. Similar effects on endogenous LRRK2 phosphorylation and 14-3-3 binding can be observed in human lympho¬blastoid cells and for the LRRK2 G2019S mutant derived from a Parkinson′s disease patient, and in human-derived neuroblastoma SHSY5Y cells, as well as in mouse Swiss 3T3 cells. 100 mg/kg of compound injected into mice elicits complete Ser910 and Ser935 dephosphorylation of LRRK2 in the kidney, but not in the brain which may result from an inability to penetrate the blood-brain barrier. In addition, it promotes relocalization of LRRK2 to more aggregate and fibrillar-like structures.

A cell-permeable, ATP competitive, potent, and selective LRRK2 inhibitor (IC₅₀ of 13 nM, 6 nM, and 2.45 µM for wild type, G2019S mutant, and drug resistant A2016T mutant LRRK2, respectively, in an in vitro ATP-site competititon binding assay). While it is shown to inhibit DCLK2 (IC₅₀ = 45 nM) and suppress MAPK7 autophosphorylation (EC₅₀ = 160 nM), this compound (<10 µM) demonstrates very good overall selectivity, targeting 12 out of 442 other kinases in a kinase-binding and biochemical assay. At 0.05-3 µM, it induces dose-dependent inhibition of Ser⁹¹⁰ and Ser⁹³⁵ phosphorylation accompanied by loss of 14-3-3 binding to both wild-type LRRK2 and LRRK2[G2019S] in stably transfected HEK293 cells, but not in the drug-resistant LRRK2[A2016T] and LRRK2[A2016T + G2019S] mutants. Similar effects on endogenous LRRK2 phosphorylation and 14-3-3 binding can be observed in human lympho-blastoid cells and for the LRRK2 G2019S mutant derived from a Parkinson′s disease patient, and in human-derived neuroblastoma SHSY5Y cells, as well as in mouse Swiss 3T3 cells. 100 mg/kg of compound injected into mice elicits complete Ser⁹¹⁰ and Ser⁹³⁵ dephosphorylation of LRRK2 in the kidney, but not in the brain which may result from an inability to penetrate the blood-brain barrier. In addition, it promotes relocalization of LRRK2 to more aggregate and fibrillar-like structures.

Packaging

Packaged under inert gas

Warning

Toxicity: Regulatory Review (Z)

Reconstitution

Following reconstitution, aliquot and freexe (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Deng, X., et al. 2011. Nat. Chem. Biol.7, 203.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Molecular Weight: 570.69. Empirical Formula: C₃₁H₃₈N₈O₃. Quality Level: 100. Assay: ≥. 95% (HPLC). form: powder. manufacturer/tradename: Calbiochem^®. . storage condition: OK to freeze, protect from light. color: yellow-white to pale yellow. solubility: DMSO: 50 . mg/mL. shipped in: ambient. storage temp.: 2-8°C. SMILES string: CN1CCN(CC1)C2CCN(CC2)C(: O)C3: CC(: C(C: C3)NC4: NC: C5C(: N4)N(C6: CC: CC: C6C(: O)N5C)C)OC. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable.