1
|
Shi S, Liu D, Wei C, Li J, Zhao C, Tian Y, Li X, Song R, Song B. A benzo[b]thiophene-derived inhibitor of virus particle assembly via targeting capsid protein residue Arg157. Int J Biol Macromol 2025; 287:138467. [PMID: 39657887 DOI: 10.1016/j.ijbiomac.2024.138467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 12/03/2024] [Accepted: 12/04/2024] [Indexed: 12/12/2024]
Abstract
As a biological macromolecule, the coat protein (CP) of potato virus Y (PVY) mediates the virus' primary pathogenic behaviors. It has been gradually realized that certain residues on the CP are crucial for functions such as virus particle movement and assembly. However, there are few reports of potential drugs successfully targeting these key residues with unique mechanisms of action. Here, we disclose the first new phytovirucide that acts on the key site Arg157 (R157) on the PVY CP. In this investigation, we developed a series of benzo[b]thiophene-based compounds, strategically introducing sulfonamide functionalities to enhance their antiviral performance. Through bio-screening, derivative C54 (EC50 = 69.2 μg/mL for inactive activity) emerged as notably more effective against PVY than the established antiviral agent ningnanmycin (EC50 = 79.6 μg/mL). Mechanistic studies revealed that C54 is an inhibitor of viral particle assembly by specifically binding to the CP residue R157, thereby disrupting its interaction with RNA. These results underscore the promise of C54 as a potent antiviral lead and provide a fresh perspective on the strategic design of inhibitors focusing on viral assembly processes.
Collapse
Affiliation(s)
- Shaojie Shi
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Deguo Liu
- College of Plant Protection, Shandong Agricultural University, NO.61 Daizong Street, Tai'an City, Shandong province 271018, China
| | - Chunle Wei
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jianzhuan Li
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Chunni Zhao
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yanping Tian
- College of Plant Protection, Shandong Agricultural University, NO.61 Daizong Street, Tai'an City, Shandong province 271018, China.
| | - Xiangdong Li
- College of Plant Protection, Shandong Agricultural University, NO.61 Daizong Street, Tai'an City, Shandong province 271018, China
| | - Runjiang Song
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Baoan Song
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
| |
Collapse
|
2
|
Yang X, Liu D, Wei C, Li J, Zhao C, Tian Y, Li X, Song B, Song R. Rational design of 2 H-chromene-based antiphytovirals that inhibit virion assembly by outcompeting virus capsid-RNA interactions. iScience 2024; 27:111210. [PMID: 39555397 PMCID: PMC11565046 DOI: 10.1016/j.isci.2024.111210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 08/30/2024] [Accepted: 10/16/2024] [Indexed: 11/19/2024] Open
Abstract
Although the determination of the structural basis of potato virus Y (PVY) coat protein (CP) provides the possibility for CP-based antiviral drug design, the role of many specific residues on CP in regulating virion pathogenicity is largely unknown, and fewer small-molecular drugs have been discovered to act on these potential sites. In this study, a series of derivatives of 2,2-dimethyl-2H-chromene are rationally designed by employing a molecular hybridization strategy. We screen a case of phytovirucide C50 that could form a stable H-bond with Ser125 of PVY CP to exert antiviral properties. Ser125 is further identified to be crucial for CP-viral RNA (vRNA) interaction, enabling PVY virion assembly. This interaction can be significantly inhibited through competitive binding with compound C50. The study enhances our understanding of anti-PVY drug mechanisms and provides a basis for developing new CP-targeting virus particle assembly inhibitors.
Collapse
Affiliation(s)
- Xiong Yang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang City, Guizhou Province 550025, P.R. China
| | - Deguo Liu
- College of Plant Protection, Shandong Agricultural University, Tai’an City, Shandong Province 271018, P.R. China
| | - Chunle Wei
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang City, Guizhou Province 550025, P.R. China
| | - Jianzhuan Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang City, Guizhou Province 550025, P.R. China
| | - Chunni Zhao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang City, Guizhou Province 550025, P.R. China
| | - Yanping Tian
- College of Plant Protection, Shandong Agricultural University, Tai’an City, Shandong Province 271018, P.R. China
| | - Xiangdong Li
- College of Plant Protection, Shandong Agricultural University, Tai’an City, Shandong Province 271018, P.R. China
| | - Baoan Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang City, Guizhou Province 550025, P.R. China
| | - Runjiang Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang City, Guizhou Province 550025, P.R. China
| |
Collapse
|
3
|
Wei C, Zhao C, Li J, Li C, Song B, Song R. Innovative Arylimidazole-Fused Phytovirucides via Carbene-Catalyzed [3+4] Cycloaddition: Locking Viral Cell-To-Cell Movement by Out-Competing Virus Capsid-Host Interactions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309343. [PMID: 38477505 PMCID: PMC11109656 DOI: 10.1002/advs.202309343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/22/2024] [Indexed: 03/14/2024]
Abstract
The control of potato virus Y (PVY) induced crop failure is a challengeable issue in agricultural chemistry. Although many anti-PVY agents are designed to focus on the functionally important coat protein (CP) of virus, how these drugs act on CP to inactivate viral pathogenicity, remains largely unknown. Herein, a PVY CP inhibitor -3j (S) is disclosed, which is accessed by developing unusually efficient (up to 99% yield) and chemo-selective (> 99:1 er in most cases) carbene-catalyzed [3+4] cycloaddition reactions. Compound -3j bears a unique arylimidazole-fused diazepine skeleton and shows chirality-preferred performance against PVY. In addition, -3j (S) as a mediator allows ARG191 (R191) of CP to be identified as a key amino acid site responsible for intercellular movement of virions. R191 is further demonstrated to be critical for the interaction between PVY CP and the plant functional protein NtCPIP, enabling virions to cross plasmodesmata. This key step can be significantly inhibited through bonding with the -3j (S) to further impair pathogenic behaviors involving systemic infection and particle assembly. The study reveals the in-depth mechanism of action of antiviral agents targeting PVY CP, and contributes to new drug structures and synthetic strategies for PVY management.
Collapse
Affiliation(s)
- Chunle Wei
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Chunni Zhao
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Jiao Li
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Chunyi Li
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Baoan Song
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Runjiang Song
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| |
Collapse
|
4
|
Zhao H, He H, Shen Z, Wei C, Yin L, Zhu Y, Lu H, Song R, Hu D. Development and Mechanism Investigation of Novel Thioacetalized Indoles as Antiphytoviral Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:17658-17668. [PMID: 37937740 DOI: 10.1021/acs.jafc.3c03967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Potato virus Y (PVY) is a highly destructive pathogen that infects Solanum tuberosumvL., commonly known as potato, a crop that produces one of the most crucial food staples of the world. The PVY viral infection can considerably reduce the yield and quality of potatoes, thereby causing significant economic ramifications. Given the unsatisfactory performance of commercially available antiviral agents against PVY, we synthesized a series of novel indole-derived compounds followed by their bioevaluation and investigation of the mechanisms governing their anti-PVY activity. These indole-based derivatives contain dithioacetal as a key chemical moiety, and most of them exhibit promising anti-PVY activities. In particular, compound B2 displays remarkable in vivo protective and inactivating properties, with half-maximal effective concentration (EC50) values of 209.3 and 113.0 μg/mL, respectively, in stark contrast to commercial agents such as ningnanmycin (EC50 = 281.4 and 136.3 μg/mL, respectively) and ribavirin (EC50 = 744.8 and 655.4 μg/mL, respectively). The mechanism using which B2 enhances plant immune response to protect plants from PVY is elucidated using enzyme activity tests, real-time quantitative polymerase chain reaction (RT-qPCR), and proteomics techniques. This study aims to pave the way for developing candidate pesticides and related molecules using antiphytoviral activity.
Collapse
Affiliation(s)
- Haiyan Zhao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Hongfu He
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Zhongjie Shen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Chunle Wei
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Limin Yin
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Yunying Zhu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Hongxia Lu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Runjiang Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Deyu Hu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| |
Collapse
|