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Mu Y, Meng Q, Fan X, Xi S, Xiong Z, Wang Y, Huang Y, Liu Z. Identification of the inhibition mechanism of carbonic anhydrase II by fructooligosaccharides. Front Mol Biosci 2024; 11:1398603. [PMID: 38863966 PMCID: PMC11165268 DOI: 10.3389/fmolb.2024.1398603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 05/06/2024] [Indexed: 06/13/2024] Open
Abstract
Polygonatum sibiricum (P. sibiricum), recognized as a precious nourishing Chinese traditional medicine, exhibits the pharmacological effect of anti-aging. In this work, we proposed a novel mechanism underlying this effect related to the less studied bioactive compounds fructooligosaccharides in P. sibiricum (PFOS) to identify the inhibition effect of the small glycosyl molecules on the age-related zinc metalloprotease carbonic anhydrase II (CA II). Molecular docking and molecular dynamics simulation were used to investigate the structural and energetic properties of the complex systems consisting of the CA II enzyme and two possible structures of PFOS molecules (PFOS-A and PFOS-B). The binding affinity of PFOS-A (-7.27 ± 1.02 kcal/mol) and PFOS-B (-8.09 ± 1.75 kcal/mol) shows the spontaneity of the binding process and the stability of the combination in the solvent. Based on the residue energy decomposition and nonbonded interactions analysis, the C-, D- and G-sheet fragments of the CA II were found to be crucial in binding process. Van der Waals interactions form on the hydrophobic surface of CAII mainly with 131PHE and 135VAL, while hydrogen bonds form on the hydrophilic surface mainly with 67ASN and 92GLN. The binding of PFOS results in the blocking of the zinc ions pocket and then inhibiting its catalytic activity, the stability of which has been further demonstrated by free energy landscape. These findings provide evidence of the effective inhibition of PFOS to CA II enzyme, which leads to a novel direction for exploring the mechanism of traditional Chinese medicine focused on small molecule fructooligosaccharides.
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Affiliation(s)
- Yue Mu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai, China
| | - Qingyang Meng
- Shanghai Pechoin Biotechnology Co., Ltd., Shanghai, China
| | - Xinyi Fan
- Shanghai Pechoin Biotechnology Co., Ltd., Shanghai, China
| | - Shuyun Xi
- Shanghai Pechoin Biotechnology Co., Ltd., Shanghai, China
| | - Zhongli Xiong
- Shanghai Zhengxin Biotechnology Co., Ltd., Shanghai, China
| | - Yihua Wang
- Shanghai Zhengxin Biotechnology Co., Ltd., Shanghai, China
| | - Yanling Huang
- Shanghai Zhengxin Biotechnology Co., Ltd., Shanghai, China
| | - Zhen Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai, China
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Chen T, Li S, Lian D, Hu Q, Hou H, Niu D, Li H, Song L, Gao Y, Chen Y, Hu X, Li J, Ye Z, Peng B, Zhang G. Integrated Network Pharmacology and Experimental Approach to Investigate the Protective Effect of Jin Gu Lian Capsule on Rheumatoid Arthritis by Inhibiting Inflammation via IL-17/NF-κB Pathway. Drug Des Devel Ther 2023; 17:3723-3748. [PMID: 38107658 PMCID: PMC10725692 DOI: 10.2147/dddt.s423022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 11/17/2023] [Indexed: 12/19/2023] Open
Abstract
Purpose This study aimed to investigate the main pharmacological action and underlying mechanisms of Jin Gu Lian Capsule (JGL) against rheumatoid arthritis (RA) based on network pharmacology and experimental verification. Methods Network pharmacology approaches were performed to explore the core active compounds of JGL, key therapeutic targets, and signaling pathways. Molecular docking was used to predict the binding affinity of compounds with targets. In vivo experiments were undertaken to validate the findings from network analysis. Results A total of 52 targets were identified as candidate JGL targets for RA. Sixteen ingredients were identified as the core active compounds, including, quercetin, myricetin, salidroside, etc. Interleukin-1 beta (IL1B), transcription factor AP-1 (JUN), growth-regulated alpha protein (CXCL1), C-X-C motif chemokine (CXCL)3, CXCL2, signal transducer and activator of transcription 1 (STAT1), prostaglandin G/H synthase 2 (PTGS2), matrix metalloproteinase (MMP)1, inhibitor of nuclear factor kappa-B kinase subunit beta (IKBKB) and transcription factor p65 (RELA) were obtained as the key therapeutic targets. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis showed that the efficacy of JGL was functionally involved in regulating immune-mediated inflammation, in which IL-17/NF-κB signaling was recommended as one of the main pathways. Molecular docking suggested that the core active compounds bound strongly to their respective targets. Experimentally, JGL treatment mitigated inflammation, showed analgesic activity, and ameliorated collagen-induced arthritis. Enzyme-linked immunosorbent assay showed that JGL effectively reduced the serum levels of cytokines, chemokines, and MMPs. Immunohistochemistry staining showed that JGL markedly reduced the expression of the targets in IL-17/NF-κB pathway including IL-17A, IL-17RA, NF-κB p65, C-X-C motif ligand 2, MMP1 and MMP13. Conclusion This investigation provided evidence that JGL may alleviate RA symptoms by partially inhibiting the immune-mediated inflammation via IL-17/NF-κB pathway.
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Affiliation(s)
- Tengfei Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Sihan Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Dongyin Lian
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Qin Hu
- College of Life Sciences and Bio-Engineering, Beijing University of Technology, Beijing, People's Republic of China
| | - Hongping Hou
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Delian Niu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Han Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Ling Song
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Yunhang Gao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Ying Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Xiaoru Hu
- National Institute for Food and Drug Control, Beijing, People's Republic of China
| | - Jianrong Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Zuguang Ye
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Bo Peng
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Guangping Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
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