Gao, Yuan; Hai, Lina; Kang, Yuan; Qin, Wenjie; Liu, Fang; Cai, Runlan; Yang, Xiuwei; Qi, Yun published the artcile< Compound kushen injection induces immediate hypersensitivity reaction through promoting the production of platelet-activating factor via de novo pathway>, Computed Properties of 6882-68-4, the main research area is Sophora Smilacis root extract platelet activating factor hypersensitivity; compound kushen injection; de novo pathway of platelet-activating factor; matrine; non-immunologic immediate hypersensitivity reaction; platelet-activating factor.
Compound Kushen Injection (CKI) is a bis-herbal formulation extracted from Kushen (Radix Sophorae Flavescentis) and Baituling (Rhizoma Heterosmilacis Yunnanensis). Clin., it is used as the adjuvant treatment of cancer. However, with the increased application, the cases of immediate hypersensitivity reactions (IHRs) also gradually rise. In this study, we investigated the underlying mechanism(s) and active constituent(s) for CKI-induced IHRs in exptl. models. The obtained results showed that CKI did not elevate serum total IgE (tIgE) and mouse mast cell protease 1 (MMCP1) after consecutive immunization for 5 wk, but could induce Evans blue extravasation (local) and cause obvious hypothermia (systemic) after a single injection. Further study showed that alkaloids in Kushen, especially matrine, were responsible for CKI-induced IHRs. Mechanism study showed that various platelet-activating factor (PAF) receptor antagonists could significantly counter CKI-induced IHRs locally or systemically. In cell system, CKI was able to promote PAF production in a non-cell-selective manner. In cell lysate, the effect of CKI on PAF production became stronger and could be abolished by blocking de novo pathway. In conclusion, our study identifies, for the first time, that CKI is a PAF inducer. It causes non-immunol. IHRs, rather than IgE-dependent IHRs, by promoting PAF production through de novo pathway. Alkaloids in Kushen, especially matrine, are the prime culprits for IHRs. Our findings may provide a potential approach for preventing and treating CKI-induced IHRs.
Frontiers in Pharmacology published new progress about Alkaloids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 6882-68-4 belongs to class naphthyridine, and the molecular formula is C15H24N2O, Computed Properties of 6882-68-4.
Referemce:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem