| Description | Ciliobrevin D is a AAA+ ATPase motor cytoplasmic dynein inhibitor. Ciliobrevin D inhibits Hedgehog (Hh) signaling and primary cilia formation and it also inhibits dynein-dependent microtubule gliding and ATPase activity in vitro. |
| In vitro | Ciliobrevin D reversibly inhibits melanosome aggregation, however, the non-cilia-disrupting derivative had no discernible effect at comparable doses. Cells treated with Ciliobrevin D exhibits abnormal (unfocused, multipolar, or collapsed) spindles with disrupted γ-tubulin localization in NIH-3T3 cells. Ciliobrevin D addition also reversibly disrupts the pre-formed spindles of metaphase-arrested cells and reduces overall microtubule levels and it similarly abrogates the movement of peroxisomes in Drosophila S2 cells[1]. |
| In vivo | In the testis in vivo, Knockdown of Dync1h1 or inactivation of dynein 1 by Ciliobrevin D perturbs spermatogenesis. The use of Ciliobrevin D to inactivate dynein 1 in the testis in vivo perturbs MT organization through changes in the spatial expression of EB1, perturbs F-actin organization, and perturbs distribution of adhesion protein complexes at the BTB, leading to a loss of BTB integrity[3]. |
| molecular weight | 392.62 |
| Molecular formula | C17H8Cl3N3O2 |
| CAS | 1370554-01-0 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility | DMSO: 5 mg/mL (12.73 mM), Sonication and heating to 80℃ are recommended. |
| References | 1. Firestone AJ, et al. Small-molecule inhibitors of the AAA+ ATPase motor cytoplasmic dynein. Nature. 2012 Mar 18;484(7392):125-9. 2. Miao Y, et al. Dynein promotes porcine oocyte meiotic progression by maintaining cytoskeletal structures and cortical granule arrangement. Cell Cycle. 2017;16(21):2139-2145. 3. Wen Q, et al. Dynein 1 supports spermatid transport and spermiation during spermatogenesis in the rat testis. Am J Physiol Endocrinol Metab. 2018 Nov 1;315(5):E924-E948. |
| Citations | 1. Zhang L, Wan M, Tohti R, et al.Requirement of Zebrafish Adcy3a and Adcy5 in Melanosome Dispersion and Melanocyte Stripe Formation.International Journal of Molecular Sciences.2022, 23(22): 14182. |