生物活性 | |||
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描述 | PI3Ks are lipid kinases participating in several cellular process. There are eight PI3 kinases have been identified as classes IA, 1B, II, and III based on the sequence homology and substrate preference. Among them, class IA PI3K is composed of a heterodimer consisting of a 110 kDa catalytic subunit (p110α, p110β and p110δ) and an 85 kDa regulatory subunit [2]. Duvelisib, also called IPI-145 or INK1197, is an oral and selective PI3K δ/γ inhibitor with Ki and IC50 of 23 pM/240 pM and 2.5nM/27nM, respectively, and is less potent to PI3K-α and PI3K-β with Ki and IC50 of 25.9nM/1.56nM and 1602nM/85nM (by recombinant PI3K isoforms), respectively. Through inhibition of PI3K-δand PI3K-γ function, Duvelisib can decrease pS473-Akt in RAJI/RAW 264.7/SKOV-3 cells as well as inhibit the proliferation of Primary B/T cells, PI3K-δ-specific degranulation of basophils and the activated GPIIb/IIIa in platelets. In animal study, Duvelisib is used in inflammatory, autoimmune and hematologic diseases model. For example, 10 mg/kg treatment of IPI-145 can suppress cellular inflammation in an OVA-induced asthma rat model with significant suppression of TNF-a, KC/GRO, interleukin-13 (IL-13) and IL-5 levels in bronchoalveolar lavage [1], and also effective in a murine xenograft model of CLL[3]. Up to now, Duvelisib is FDA approved for use in combination with rituximab for the treatment of relapsed chronic lymphocytic leukemia (CLL) and follicular lymphoma [4]. | ||
作用机制 | IPI-145 is an ATP-competitive inhibitor. [1] |
临床研究 | |||||
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NCT号 | 适应症或疾病 | 临床期 | 招募状态 | 预计完成时间 | 地点 |
NCT02158091 | Chronic Lymphocytic Leukemia | Phase 1 Phase 2 | Active, not recruiting | July 2021 | United States, Massachusetts ... 展开 >> Beth Isreal Deaconess Medical Center Boston, Massachusetts, United States, 02115 Dana Farber Cancer Institute Boston, Massachusetts, United States, 02115 收起 << |
NCT01925911 | Healthy | Phase 1 | Completed | - | United States, Kansas ... 展开 >> PRA International Lenexa, Kansas, United States, 66219 收起 << |
NCT03757000 | B-cell Lymphoma Recurrent ... 展开 >> B-cell Chronic Lymphocytic Leukemia 收起 << | Phase 1 | Recruiting | May 30, 2019 | China, Beijing ... 展开 >> Peking Cancer Hospital Recruiting Beijing, Beijing, China, 100142 Contact: Yuqin Song, MD,PhD 86 10-88140650 songyuqin622@163.com Contact: Meifeng Tu, MD,PhD 86 10-88121122 44329472@qq.com Principal Investigator: Yuqin Song, MD,PhD Sub-Investigator: Meifeng Tu, MD,PhD Sub-Investigator: Lingyan Ping, MD,PhD China, Jiangsu Jiangsu Province Hospital Not yet recruiting Nanjing, Jiangsu, China, 210029 Contact: Jiangyong Li, MD,PhD 86 25-83714511 lijianyonglm@126.com Contact: Wei Xu, MD,PhD 86 25-83714511 xuwei0484@jsph.org.cn Principal Investigator: Jianyong Li, MD,PhD Sub-Investigator: Meifeng Tu, MD,PhD China, Tianjin Hematology Hospital of Chinese Academy of Medical Sciences Recruiting Tianjin, Tianjin, China, 300020 Contact: Lugui Qiu, MD,PhD 86 22-23909172 qiulg@ihcams.ac.cn Contact: Junyuan Qi, MD,PhD 86 22-23909999 qijy@ihcams.ac.cn Principal Investigator: Lugui Qiu, MD,PhD Sub-Investigator: Junyuan Qi, MD,PhD 收起 << |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.40mL 0.48mL 0.24mL |
11.99mL 2.40mL 1.20mL |
23.99mL 4.80mL 2.40mL |
参考文献 |
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