1.New applications of clioquinol in the treatment of inflammation disease by directly targeting arginine 335 of NLRP3.
Peipei CHEN ; Yunshu WANG ; Huaiping TANG ; Chao ZHOU ; Zhuo LIU ; Shenghan GAO ; Tingting WANG ; Yun XU ; Sen-Lin JI
Journal of Pharmaceutical Analysis 2025;15(1):101069-101069
The NOD-like receptor protein 3 (NLRP3) inflammasome is essential in innate immune-mediated inflammation, with its overactivation implicated in various autoinflammatory, metabolic, and neurodegenerative diseases. Pharmacological inhibition of NLRP3 offers a promising treatment strategy for inflammatory conditions, although no medications targeting the NLRP3 inflammasome are currently available. This study demonstrates that clioquinol (CQ), a clinical drug with chelating properties, effectively inhibits NLRP3 activation, resulting in reduced cytokine secretion and cell pyroptosis in both human and mouse macrophages, with a half maximal inhibitory concentration (IC50) of 0.478 μM. Additionally, CQ mitigates experimental acute peritonitis, gouty arthritis, sepsis, and colitis by lowering serum levels of interleukin-1β (IL-1β), IL-6, and tumor necrosis factor-α (TNF-α). Mechanistically, CQ covalently binds to Arginine 335 (R335) in the NACHT domain, inhibiting NLRP3 inflammasome assembly and blocking the interaction between NLRP3 and its component protein. Collectively, this study identifies CQ as an effective natural NLRP3 inhibitor and a potential therapeutic agent for NLRP3-driven diseases.
2.Research and Practice on Establishing New Mode of Production and Practice in Pharmacology of Senior Vocational College
Jing LI ; Feiyan HOU ; Huaiping JI
Chinese Journal of Medical Education Research 2006;0(09):-
Emphasizing practice is a main characteristic in Pharmacy.Insisting on taking employment as guide to do profitable research and practice on new mode of production and practice in pharmacology of senior vocational college from regulating education schedule,establishing and consummating exercitation examination and evaluation mechanism,promoting collaboration between college and corporation,and establishing exercitation-driving education mechanism,can help students improve their practice knowledge in exercitation,transform their knowledge to ability,and cultivate professional pharmacy talent of application and creation.
3.The Research on the Construction of Carrier for the Cultivation of the Non-Verbal Information Communication of Medical Students
Chinese Journal of Medical Education Research 2006;0(08):-
Non-verbal information refers to the information besides the linguistic information.It is an important part in interpersonal communication and can't be replaced by verbal information.The cultivation of medical students obtaining the non-verbal information may begin from the carrier to build a curriculum system and practice system and combine them,thus cultivating the ability of nonverbal information communication,improving professional quality and laying a solid foundation for a harmonious relationship between medical professionals and patients.
4.Expression of von Willebrand factor-A1 domain in E coli and it's the inhibitory effect on platelet aggregation
Huaiping ZHU ; Yingchun WANG ; Xia BAI ; Shundong JI ; Wei ZHANG ; Bojing SHAO ; Mingqing ZHU ; Changgen RUAN
Chinese Journal of Pathophysiology 1986;0(01):-
AIM: To further investagate the mechanism of thrombus formation and develop a new remedy of anti-thrombus formation. METHODS: The amplified DNA fragment of vWF-A1 domain was inserted into expression vector with 6?his taq (pQE-31), the recombinant expression vect or was transformed into E coli (strain M15) and induced by IPTG. The recombinant fragment, comprising residues 449-728 of mature vWF subunit, designate rvWF-A1. It was purified by Ni-NTA agarose column and renatured by Tris buffer containin g GSH and GSSG. FACS and platelet aggregometer were employed to analyse the rvWF -A1 function of binding to platelet glycoprotein Ib and inhibiting ristocetin-in duced platelet aggregation. RESULTS: The rvWF-A1 was expressed successfully in E coli, comin g up to 30% of total bacterial protein. Its purify was over 95% through Ni-NTA a garose. It was identified to have ability to bind to GPIb, its biologic activity to inhibit ristocetin-induced platelet aggregation was observed, and the inhibi tive rate was 84 7%. CONCLUSION: The above results indicated that high-level expressi on of rvWF-A1 was successfully achieved in E coli and rvWF-A1 may be an effectiv e antithromotic agent in preventing thrombus formation.

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