Dock5 Inhibitor, C21

Cell permeable: yes

Primary Target
Dock5

Toxicity: Standard Handling (A)

A cell-permeable, bioavailable, non-toxic benzenesulfonamide compound that directly blocks Dock5-mediated Rac activation (k_cat/K_M = 7.9 x 10⁴ & 9.5 x 10⁴ M^-1s^-1 for Rac1 & Rac2 by Dock5-DHR2, respectively) with selectivity over RhoA and Cdc42. At higher concentrations, affects Dock1 and Dock2 guanine nucleotide exchange factor activity. Shown to reversibly perturb podosome organization and inhibit osteoclastic bone degradation in a dose-dependent manner. Efficiently prevents both arthritis and metastasis-induced bone loss while preserving bone formation in several osteolytic disease mouse model (25 mg/kg, i.p. or i.v., 5 days a week for 4 weeks). Unlike alendronate (Cat. No. 126855), C21 does not impair bone formation.

Vives, V., et al. 2015. Nat. Commun.6, 6218.
Vives, V., et al. 2011. J. Bone Miner. Res.26, 1099.

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

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