AZ084
目录号 : GC65213
AZ084 是一种具有口服活性的选择性 CCR8 的变构拮抗剂，其Ki 值为 0.9 nM。AZ084 可通过下调 Treg 的分化来抑制免疫耐受性 PMN 的形成和肿瘤细胞在肺部的转移。AZ084 可用于哮喘和癌症的研究。
Cas No.:929300-19-6
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
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- Purity: >99.00%
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- SDS (Safety Data Sheet)
- Datasheet
CCR8 0.9nM(Ki) |
AZ084 is a potent, selective, allosteric and oral active CCR8 allosteric antagonist, with a Ki of 0.9 nM. Has potential to treat asthma[1]. AZ084 restrains the formation of the immunologically tolerant pre-metastatic niche (PMN) and tumor cells metastasis in lung by downregulating Treg differentiation. AZ084 can be used in studies of asthma and cancer[1][2].
AZ084 (5 μg/mL; single daily for 4 days) suppresses proportion of Tregs and reduces T cells that expresses CCR8 (co-cultured in vitro with LLC-exo MPF CM)[1].AZ084 (0-10 µM) inhibits AML, DC and T cells with IC50s of 1.3, 4.6 and 5.7 nM, respectively[2].
AZ084 (5 mg/kg; i.p.; every third day for 9 or 21 days) restrains the formation of the immunologically tolerant PMN and tumor cells metastasis in lung by downregulating Treg differentiation[1].AZ084 (434.57-869.14 mg/kg; i.v.; single) shows a bioavailability >70% in rats[2].
[1]. Connolly S, et al. Orally bioavailable allosteric CCR8 antagonists inhibit dendritic cell, T cell and eosinophil migration. Biochem Pharmacol. 2012 Mar 15;83(6):778-87.
| Cas No. | 929300-19-6 | SDF | Download SDF |
| 分子式 | C26H34N4O2 | 分子量 | 434.57 |
| 溶解度 | DMSO : 250 mg/mL (575.28 mM; Need ultrasonic) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.3011 mL | 11.5056 mL | 23.0113 mL |
| 5 mM | 0.4602 mL | 2.3011 mL | 4.6023 mL |
| 10 mM | 0.2301 mL | 1.1506 mL | 2.3011 mL |
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动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
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| % DMSO % % Tween 80 % saline | ||||||||||
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工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
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1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
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Tumor-derived exosomes drive pre-metastatic niche formation in lung via modulating CCL1+ fibroblast and CCR8+ Treg cell interactions
Cancer Immunol Immunother 2022 Nov;71(11):2717-2730.PMID:35428909DOI:10.1007/s00262-022-03196-3.
Background: Since the lung is one of the most common sites for cancer metastasis, it could provide a suitable microenvironment for pre-metastatic niche (PMN) formation to facilitate tumor cell colonization. Regulatory T cells (Tregs) are an immunosuppressive cell type found ubiquitously in tumors and may play a crucial role in PNM formation. In this study, we investigated tumor-derived exosome (TDE)-induced Treg differentiation in the lung PMN as well as the underlying mechanisms. Methods: TDEs were isolated from the Lewis lung carcinoma cell line (LLC-exo) and their effects on mouse pulmonary fibroblasts was investigated in vitro as well as on lung tumor formation and metastasis in a pre-injected mouse model. Immune cell populations in the lung were analyzed by flow cytometry. Expression of CCL1 and CCR8 was evaluated by immunofluorescence staining, qRT-PCR and Western blot analyses. Cytokine expression was measured using mouse cytokine arrays and ELISA. Results: The number of CD4+ FoxP3+ Tregs was significantly increased in lungs in a LLC-exo pre-injected mouse model. Lung fibroblasts secreted increased amounts of CCL1 after co-culture with LLC-exo, which induced Treg differentiation by activating its specific receptor CCR8, ultimately contributing to the establishment of an immunologically tolerant PMN. Moreover, inhibiting the release of LLC-exo by GW4869, or blocking the CCL1-CCR8 axis using AZ084, suppressed Tregs differentiation and tumor metastasis in the lung. Conclusions: Collectively, our study provides a novel mechanism by which Tregs are activated to form an immunologically tolerant PMN and demonstrates a critical link among lung fibroblasts, Tregs and metastatic tumor cells.
Orally bioavailable allosteric CCR8 antagonists inhibit dendritic cell, T cell and eosinophil migration
Biochem Pharmacol 2012 Mar 15;83(6):778-87.PMID:22209712DOI:10.1016/j.bcp.2011.12.021.
The chemokine receptor CCR8 is associated with asthma. Herein, we describe that both mature and immature dendritic cells (DC) express CCR8, whereas only mature DC migrate towards CCL1. Moreover, transient LPS challenge significantly down-regulates CCR8 expression hence attenuating CCL1 chemotaxis. To inhibit CCR8 pathophysiology, we recently developed a novel series of small molecule CCR8 antagonists containing a diazaspiroundecane scaffold, which had micromolar potency. However, these first generation antagonists had high lipophilicity that endowed the compounds with poor physicochemical properties, and were thus not suitable for further development. By introducing polar bicyclic groups on the N-benzyl substituent and building in further polar interactions on the amide group we now show second generation diazospiroundecane antagonists with significantly improved overall properties. Potency is substantially improved from micromolar to nanomolar potency in CCR8 binding and inhibition of chemotaxis in human primary T cells, DC and in an eosinophil cell line. In addition to high potency, the most attractive antagonist, AZ084 showed excellent selectivity, high metabolic stability in vitro and an attractive in vivo PK profile with a long half-life in rat. Interestingly, in ligand saturation experiments and in wash-off experiments, CCL1 was shown to have two binding sites to CCR8 with K(d) at 1.2/68pM respectively, and on-off rates of 0.004 and 0.0035/0.02pMmin, respectively. The lead antagonist, AZ084, appears to act as an allosteric inhibitor with a K(i) at 0.9nM. Taken together, we herein report a novel oral allosteric CCR8 antagonist with predicted low once-daily dosing capable of potent inhibition of both human T cell and DC functions.