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Zhou S, Chen Y, Xu J, Yin Y, Yu J, Liu W, Chen S, Wang L. Supramolecular detoxification of nitrogen mustard via host-guest encapsulation by carboxylatopillar[5]arene. J Mater Chem B 2023; 11:2706-2713. [PMID: 36876404 DOI: 10.1039/d2tb02211g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Nitrogen mustard (NM), a kind of alkylating agent similar to sulfur mustard, remains a threat to public health. However, there is nearly no satisfactory antidote for nitrogen mustard. Herein, we developed a supramolecular antidote to nitrogen mustard through efficient complexation of NM by carboxylatopillar[5]arene potassium salts (CP[5]AK). The cavity of methoxy pillar[5]arene (P5A) is sufficient to encapsulate NM with an association constant of 1.27 × 102 M-1, which was investigated by 1H NMR titration, density functional theory studies and independent gradient model studies. NM degrades to the reactive aziridinium salt (2) in the aqueous phase which irreversibly alkylates DNA and proteins, causing severe tissue damage. Considering the size/charge matching with toxic intermediate 2, water-soluble CP[5]AK was selected to encapsulate the toxic aziridinium salt (2), resulting in a high association constant of 4.10 × 104 M-1. The results of protection experiments of guanosine 5'-monophosphate (GMP) by CP[5]AK indicated that the formation of a complex could effectively inhibit the alkylation of DNA. Besides, in vitro and in vivo experiments also indicated that the toxicity of the aziridinium salt (2) is inhibited with the formation of a stable host-guest complex, and CP[5]AK has a good therapeutic effect on the damage caused by NM. This study provides a new mechanism and strategy for the treatment of NM exposure-induced skin injuries.
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Affiliation(s)
- Siyuan Zhou
- The Institute for Advanced Studies, and Department of Gastroenterology, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430072, P. R. China.
| | - Yi Chen
- The Institute for Advanced Studies, and Department of Gastroenterology, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430072, P. R. China.
| | - Jie Xu
- School of Pharmaceutical Sciences, Wuhan University, 185 Donghu Road, Wuhan, Hubei 430072, P. R. China
| | - Yongfei Yin
- The Institute for Advanced Studies, and Department of Gastroenterology, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430072, P. R. China.
| | - Jianqing Yu
- School of Pharmaceutical Sciences, Wuhan University, 185 Donghu Road, Wuhan, Hubei 430072, P. R. China
| | - Wei Liu
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, P. R. China.
| | - Shigui Chen
- The Institute for Advanced Studies, and Department of Gastroenterology, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430072, P. R. China.
| | - Lu Wang
- The Institute for Advanced Studies, and Department of Gastroenterology, Hubei Clinical Center & Key Lab of Intestinal & Colorectal Diseases, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430072, P. R. China.
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Della Sala P, Del Regno R, Talotta C, Capobianco A, Hickey N, Geremia S, De Rosa M, Spinella A, Soriente A, Neri P, Gaeta C. Prismarenes: A New Class of Macrocyclic Hosts Obtained by Templation in a Thermodynamically Controlled Synthesis. J Am Chem Soc 2020; 142:1752-1756. [PMID: 31898458 PMCID: PMC7993634 DOI: 10.1021/jacs.9b12216] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
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The novel title macrocycles, based
on methylene-bridged 1,5-naphthalene
units, have been obtained by template effect in a thermodynamically
controlled synthesis. In detail, the prism[5]arene 1 or
the prism[6]arene 3 was selectively removed from the
equilibrium mixture by using the complementary ammonium-templating
agent. When only the solvent 1,2-DCE was used, the 1,4-confused derivative 2 was obtained. The prism[5]arene here described shows a deep
π-electron-rich aromatic cavity that exhibits a great affinity
for the quaternary ammonium guests, originating from favorable cation···π
and +NC–H···π interactions.
This recognition motif is the basis of the templated synthesis of
the prism[n]arenes here reported.
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Affiliation(s)
- Paolo Della Sala
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
| | - Rocco Del Regno
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
| | - Carmen Talotta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
| | - Amedeo Capobianco
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
| | - Neal Hickey
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , Via L. Giorgieri 1 , I-34127 Trieste , Italy
| | - Silvano Geremia
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , Via L. Giorgieri 1 , I-34127 Trieste , Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
| | - Aldo Spinella
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
| | - Placido Neri
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia, "A. Zambelli" , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano ( SA ), Italy
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