B4899-5mg | BLZ945 [953769-46-5] Quimigen Portugal

BLZ945, also named as 4-[2((1R,2R)-2-Hydroxycyclohexylamino)-benzothiazol-6-yloxyl]-pyridine- 2-carboxylic acid methylamide , is a small molecule inhibitor of CSF-1R kinase with IC50 value of 1.2 nM. [2]
CSF-1R is the receptor for macrophage colony stimulating factor (M-CSF) which mediates the biological effects of this cytokine. The main biological effects of CSF-1R signaling are differentiation, proliferation, migration and survival of precursor macrophages and osteoclasts from the monocytic lineage [1].
BLZ945 has the potential to treat an array of diseases associated with normal and deregulated function of precursor macrophages and osteoclasts from the monocytic lineage. [14C]BLZ945 metabolites were kinetically and structurally characterized from an in vitro across species comparison study using human hepatocytes and microsomes. Both compounds BLZ945 and M9 have significant anti-proliferative activity against the M-CSF dependent cell line MNFS-60 with EC50 of 71 and 140 mM, respectively. The biotransformation of BLZ945 in human liver micro-omes and recombinant cytochromes occurred predominantly via oxidative routes with also a secondary reductive pathway. [2]
BLZ945 decreased the growth of malignant cells in the mouse mammary tumor virus-driven polyomavirus middle T antigen (MMTV-PyMT) model of mammary carcinogenesis. BLZ945 prevented tumor progression in the keratin 14-expressing human papillomavirus type 16 (K14-HPV-16) transgenic model of cervical carcinogenesis. [3]
References:
[1]. Stanley ER, Berg KL, Einstein DB et al. Biology and action of colony--stimulating factor-1. Mol Reprod Dev. 1997 Jan;46(1):4-10.
[2]. Krauser JA, Jin Y, Walles M et al. Phenotypic and metabolic investigation of a CSF-1R kinase receptor inhibitor (BLZ945) and its pharmacologically active metabolite. Xenobiotica. 2015 Feb;45(2):107-23.
[3]. Strachan DC, Ruffell B2, Oei Y et al. CSF1R inhibition delays cervical and mammary tumor growth in murine models by attenuating the turnover of tumor-associated macrophages and enhancing infiltration by CD8+ T cells. Oncoimmunology. 2013 Dec 1;2(12):e26968.

1. Saha D, Martuza RL, Rabkin SD. "Macrophage Polarization Contributes to Glioblastoma Eradication by Combination Immunovirotherapy and Immune Checkpoint Blockade". Cancer Cell. 2017 Aug 14;32(2):253-267.e5. PMID:28810147

Physical Appearance	A solid
Storage	Store at -20°C
M.Wt	398.48
Cas No.	953769-46-5
Formula	C₂₀H₂₂N₄O₃S
Solubility	insoluble in EtOH; insoluble in H2O; ≥19.9 mg/mL in DMSO
Chemical Name	4-((2-(((1R,2R)-2-hydroxycyclohexyl)amino)benzo05thiazol-5-yl)oxy)-N-methylpicolinamide
SDF	Download SDF
Canonical SMILES	O=C(NC)C1=NC=CC(OC2=CC3=C(N=C(N[C@@H]4CCCC[C@H]4O)S3)C=C2)=C1
Shipping Condition	Small Molecules with Blue Ice, Modified Nucleotides with Dry Ice.
General tips	We do not recommend long-term storage for the solution, please use it up soon.

Cell experiment [1]:
Cell lines	BMDM cell line
Preparation method	The solubility of this compound in DMSO is > 19.9 mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below - 20 °C for several months.
Reacting condition	6.7 ~ 6700 nM; 96 hrs
Applications	In BMDM cell line, BLZ945 specifically inhibited CSF-1-dependent proliferation (EC50 = 67 nM), and reduced CSF-1R phosphorylation.
Animal experiment [2]:
Animal models	Female MMTV-PyMT transgenic mice
Dosage form	200 mg/kg; p.o.; q.d., for 16 days
Applications	In female MMTV-PyMT transgenic mice, BLZ945 decreased macrophages in tumors and livers, but showed no effect on lung macrophages, circulating monocytes and tumor cell proliferation.
Other notes	Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.
References: [1]. Pyonteck SM, Akkari L, Schuhmacher AJ, Bowman RL, Sevenich L, Quail DF, Olson OC, Quick ML, Huse JT, Teijeiro V, Setty M, Leslie CS, Oei Y, Pedraza A, Zhang J, Brennan CW, Sutton JC, Holland EC, Daniel D, Joyce JA. CSF-1R inhibition alters macrophage polarization and blocks glioma progression. Nat Med. 2013 Oct;19(10):1264-72. [2]. Strachan DC, Ruffell B2, Oei Y et al. CSF1R inhibition delays cervical and mammary tumor growth in murine models by attenuating the turnover of tumor-associated macrophages and enhancing infiltration by CD8+ T cells. Oncoimmunology. 2013 Dec 1;2(12):e26968.

Purity = 98.04%

BLZ945 [953769-46-5]

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