Zimlovisertib (PF-06650833)一種有效、選擇性且口服可利用的白介素-1 受體相關激酶 4 (IRAK4) 抑制劑,IC50 為 0.2 nM,在 PBMC 測試中的 IC50 為 2.4 nM,研究領域包括類風濕性關節炎、狼瘡和淋巴瘤。


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| 描述 | Zimlovisertib (PF-06650833) is a potent, selective, and orally bioavailable inhibitor of interleukin-1 receptor-associated kinase 4 (IRAK4), showing IC50 values of 0.2 nM in cell assays and 2.4 nM in peripheral blood mononuclear cell (PBMC) assays. It is primarily aimed at treating conditions such as rheumatoid arthritis, lupus, and lymphomas[1].[2]. |
| 體內研究 | Oral administration of Zimlovisertib (0.3-30 mg/kg) to male Sprague-Dawley rats significantly suppressed LPS-induced TNF-α production in a dose-dependent manner. Plasma concentrations of Zimlovisertib were measured at 2.1 nM, 7.7 nM, 19 nM, and 150 nM free, respectively, 2.5 hours post-administration at the aforementioned dosages. The fraction of Zimlovisertib unbound in rat plasma was determined to be 0.3[1]. |
| 體外研究 | In a kinome profiling study involving 278 kinases at a concentration of 200 nM, Zimlovisertib exhibited near-total inhibition of IRAK4 activity[1]. Zimlovisertib's specificity was further evaluated in a whole cell functional VEGF2R assay using the PAE-KDR cell line, where it showed no activity at concentrations up to 30 μM. Additionally, at 100 μM, Zimlovisertib was found to inhibit the hERG current by 25% in a voltage clamp assay[1]. Investigations into Zimlovisertib's effect on major CYP450 enzymes, using pooled human liver microsomes and specific probe substrates, indicated less than 5% inhibition of CYPs 1A2, 2C8, 2C9, 2D6, and 3A4 at 3 μM. Moreover, no time-dependent inhibition of these enzymes was observed even at 100 μM. Zimlovisertib, at 10 μM, led to a 4.4-fold increase in CYP3A mRNA in cryopreserved human hepatocytes, suggesting potential induction effects[1]. |
| Concentration | Treated Time | Description | References | |
| Human peripheral blood mononuclear cells (hPBMC) | 500 nmol/L | 20 hours | To evaluate the effect of PF-06650833 on cytokine secretion after LPS stimulation. Results showed that PF-06650833 effectively reduced the secretion of inflammatory cytokines such as IL-1, IFN-γ, TNF-α, and IL-17. | Biomed Pharmacother. 2022 Sep;153:113459. |
| T cells | 20 μM | 96 hours | To evaluate the effect of PF-06650833 on T cell proliferation and IFN-γ production, results showed that PF-06650833 significantly suppressed IFN-γ production by T cells without affecting their proliferation. | Haematologica. 2020 Jan;105(1):226-234. |
| Administration | Dosage | Frequency | Description | References | ||
| Mice | Λ-carrageenan-induced paw edema and DSS-induced ulcerative colitis | Intravenous injection | 23 mg/kg | Every other day for a total of four injections | To evaluate the accumulation and anti-inflammatory effects of VCAM1-targeted nanocarriers in inflamed tissues. Results demonstrated that VCAM1-targeted nanocarriers significantly reduced paw edema and colitis symptoms, decreased proinflammatory cytokine levels in affected tissues, and showed no apparent systemic toxicity. | Small. 2024 Jan;20(4):e2306270 |
| Female Balb/c mice | Inhaled lipopolysaccharide (LPS)-induced ARDS mouse model | Oral | 100 mg/kg | Preventive administration: one dose 30 min before modeling and another dose 6h after modeling; Therapeutic administration: two doses at 4 h and 12 h after modeling. | To evaluate the therapeutic effect of PF-06650833 in the ARDS model. Results showed that although PF-06650833 exhibited excellent IRAK4 inhibitory activity in vitro, it failed to significantly alleviate lung injury or reduce inflammatory cell infiltration in the in vivo model. | Biomed Pharmacother. 2022 Sep;153:113459. |
| Mice | Graft-versus-host disease model | Intravenous injection | 12.0 mg/kg | Once daily for 20 days | To evaluate the effect of PF-06650833 on graft-versus-host disease, results showed that PF-06650833 significantly ameliorated morbidity and mortality of GvHD. | Haematologica. 2020 Jan;105(1):226-234. |
| HuNOG-EXL mice | CD34+ hematopoietic stem cell-engrafted NOG-EXL mice | Oral | 100 mg/kg | Single dose, 30 minutes prior to challenge | Evaluate the inhibitory effect of PF-06650833 on AZ617-induced human TNFα, significantly reducing circulating human TNFα | J Biol Methods. 2023 Nov 20;10:jbm-10-e99010008 |
| Balb/c mice | Inhaled LPS-induced ARDS mouse model | Oral | 100 mg/kg | Preventive administration: single dose 30 min before modeling; Therapeutic administration: twice at 4 h and 12 h after LPS modeling | To evaluate the therapeutic effect of PF-06650833 in ARDS model. Results showed PF-06650833 failed to significantly improve lung injury scores and inflammatory cell infiltration, performing worse compared to BAY-1834845. | Biomed Pharmacother. 2022 Sep;153:113459 |
| 計算器 | ||||
| 存儲液制備 | ![]() |
1mg | 5mg | 10mg |
|
1 mM 5 mM 10 mM |
2.77mL 0.55mL 0.28mL |
13.84mL 2.77mL 1.38mL |
27.67mL 5.53mL 2.77mL |
|
| CAS號 | 1817626-54-2 |
| 分子式 | C18H20FN3O4 |
| 分子量 | 361.37 |
| SMILES Code | O=C(C1=CC2=C(C(OC[C@H]([C@H](CC)[C@@H]3F)NC3=O)=NC=C2)C=C1OC)N |
| MDL No. | MFCD30343869 |
| 別名 | PF-06650833 |
| 運輸 | 藍冰 |
| InChI Key | JKDGKIBAOAFRPJ-ZBINZKHDSA-N |
| Pubchem ID | 118414016 |
| 存儲條件 |
In solvent -20°C: 3-6個月 -80°C: 12個月 Pure form Sealed in dry, 2-8°C |
| 溶解方案 |
DMSO: 60 mg/mL(166.04 mM),配合低頻超聲,并水浴加熱至45℃助溶,注意:DMSO長時間開封后,會吸水并導致溶解能力下降,請避免使用長期開封的DMSO 以下溶解方案都請先按照體外實驗的方式配制澄清的儲備液,再依次添加助溶劑: ——為保證實驗結果的可靠性,澄清的儲備液可以根據儲存條件,適當保存;體內實驗的工作液,建議現用現配,當天使用; 以下溶劑前顯示的百分比是指該溶劑在終溶液中的體積占比;如在配制過程中出現沉淀、析出現象,可以通過加熱和/或超聲的方式助溶
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