研究动态
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Lathyrol PROTACs的合成及其抗炎活性评价。

Synthesis of Lathyrol PROTACs and Evaluation of Their Anti-Inflammatory Activities.

发表日期:2023 Mar 31
作者: Wang Wang, Yang Liu, Liangliang Xiong, Dejuan Sun, Hui Wang, Zhuorui Song, Yutong Li, Hua Li, Lixia Chen
来源: JOURNAL OF NATURAL PRODUCTS

摘要:

Lathyrol是Euphorbia lathyrism所分离的许多lathyrane二萜具有强效抗炎活性的核心支架结构。它被选择作为设计和合成一系列蛋白酶降解靶向嵌合体的框架。共获得15个衍生物。化合物13在RAW264.7细胞中抑制LPS诱导的NO产生有抑制作用(IC50 = 5.30 ± 1.23 μM),且细胞毒性低。此外,化合物13会浓度依赖性和时间依赖性地明显降解lathyrane二萜的靶标v-maf musculoaponeurotic fibrosarcoma oncogene homologue F (MAFF)蛋白。13的作用机制与激活Keap1/Nrf2通路有关。它还抑制了NF-κB的表达,阻碍了NF-κB的核转移,并激活了LPS诱导的RAW264.7细胞的自噬。基于所获得的结果,化合物13可能是一种有前途的抗炎药物。
Lathyrol is a core scaffold structure of many lathyrane diterpenoids with potent anti-inflammatory activity isolated from Euphorbia lathyrism. It was chosen as a framework to design and synthesize a series of proteolysis targeting chimeras. A total of 15 derivatives were obtained. Compound 13 exhibited inhibitory activity on LPS-induced NO production in RAW264.7 cells (IC50 = 5.30 ± 1.23 μM) with low cytotoxicity. Furthermore, compound 13 significantly degraded v-maf musculoaponeurotic fibrosarcoma oncogene homologue F (MAFF) protein, a target of lathyrane diterpenoid, concentration- and time-dependently. The mechanism of action of 13 is related to activating the Keap1/Nrf2 pathway. It also inhibited the expression of NF-κB, blocked the nuclear translocation of NF-κB, and activated autophagy in LPS-induced RAW264.7 cells. Based on the results obtained, compound 13 might be a promising anti-inflammatory agent.