XL888 is an orally bioavailable, ATP-competitive HSP90 inhibitor with potential antineoplastic activity. XL888 specifically binds to Hsp90, inhibiting its chaperone function and promoting the proteasomal degradation of oncogenic signaling proteins involved in tumor cell proliferation and survival. XL888 potently inhibited cell growth, induced apoptosis, and prevented the growth of vemurafenib-resistant melanoma cell lines in vitro and in vivo. XL888 (100 mg/kg) significantly induces the regression or growth inhibition (50%) of established M229R and 1205LuR xenografts in SCID mice. XL888 treatment increased BIM expression, decreased Mcl-1 expression, and induced apoptosis more effectively than dual mitogen-activated protein-extracellular signal-regulated kinase/phosphoinositide 3-kinase (MEK/PI3K) inhibition.
Cell Experiment | |
---|---|
Cell lines | vemurafenib naïve and resistant melanoma cell lines and melanoma cell lines |
Preparation method | Growth inhibition. Cells were plated at a density of 2.5 × 104 cells per ml and left to grow overnight before being treated with increasing concentrations of vemurafenib or XL888 as described in (19). Data show the mean of at least three independent experiments ± the S.E. mean. |
Concentrations | 1nM ~ 10 µM |
Incubation time | 72 h |
Animal Experiment | |
---|---|
Animal models | BALB SCID mice bearing Xenograft experiments |
Formulation | 10mM HCl |
Dosages | 100 mg/kg 3x per week |
Administration | oral gavage |
Molecular Weight | 503.64 |
Formula | C29H37N5O3 |
CAS Number | 1149705-71-4 |
Solubility (25°C) | DMSO |
Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
Related HSP Products |
---|
Hsp70-derived octapeptide
Hsp70-derived octapeptide is a conserved octapeptide of the C-terminal end of Hsp70, which physically interacts with tetratricopeptide repeat (TPR) motifs. |
p5 Ligand for Dnak and DnaJ
p5 Ligand for Dnak and DnaJ is a nonapeptide, which corresponds to the main binding site for the 23-residue part of the presequence of mitochondrial aspartate aminotransferase. |
Tertomotide hydrochloride
Tertomotide hydrochloride is a peptide consisting of 16 amino acids containing sequences derived from human telomerase reverse transcriptase (TERT).Tertomotide penetrates cells and interacts with HSP70 and HSP90, as well as inhibiting amyloid beta and tau, and inhibiting aging-related signaling in the brain. pathways, which could be used in aging and Alzheimer's disease related studies. |
BMS-986263
BMS-986263 is a small interfering RNA (siRNA) that targets Hsp47 and can be used in studies related to idiopathic pulmonary fibrosis (IPF). |
AT-533
AT-533 is a potent Hsp90 and HSV inhibitor. |
Products are for research use only. Not for human use. We do not sell to patients.
© Copyright 2010-2023 AbMole BioScience. All Rights Reserved.