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Pang S, Wang M, Yuan J, Yang Z, Yu H, Zhang H, Dong T, Liu A. Sensitive Dual-Signal ELISA Based on Specific Phage-Displayed Double Peptide Probes with Internal Filtering Effect to Assay Monkeypox Virus Antigen. Anal Chem 2024; 96:10064-10073. [PMID: 38842443 DOI: 10.1021/acs.analchem.4c01802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
The global spread of monkeypox has become a worldwide public healthcare issue. Therefore, there is an urgent need for accurate and sensitive detection methods to effectively control its spreading. Herein, we screened by phage display two peptides M4 (sequence: DPCGERICSIAL) and M6 (sequence: SCSSFLCSLKVG) with good affinity and specificity to monkeypox virus (MPXV) B21R protein. To simulate the state of the peptide in the phage and to avoid spatial obstacles of the peptide, GGGSK was added at the C terminus of M4 and named as M4a. Molecular docking shows that peptide M4a and peptide M6 are bound to different epitopes of B21R by hydrogen bonds and salt-bridge interactions, respectively. Then, peptide M4a was selected as the capture probe, phage M6 as the detection probe, and carbonized polymer dots (CPDs) as the fluorescent probe, and a colorimetric and fluorescent double-signal capture peptide/antigen/signal peptide-displayed phage sandwich ELISA triggered by horseradish peroxidase (HRP) through a simple internal filtration effect (IFE) was constructed. HRP catalyzes H2O2 to oxidize 3,3',5,5'-tetramethylbenzidine (TMB) to generate blue oxidized TMB, which can further quench the fluorescence of CPDs through IFE, enabling to detect MPXV B21R in colorimetric and fluorescent modes. The proposed simple immunoassay platform shows good sensitivity and reliability in MPXV B21R detection. The limit of detection for colorimetric and fluorescent modes was 27.8 and 9.14 pg/mL MPXV B21R, respectively. Thus, the established double-peptide sandwich-based dual-signal immunoassay provides guidance for the development of reliable and sensitive antigen detection capable of mutual confirmation, which also has great potential for exploring various analytical strategies for other respiratory virus surveillance.
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Affiliation(s)
- Shuang Pang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Mingyang Wang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Jinlong Yuan
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Zhonghuang Yang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Haipeng Yu
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Haohan Zhang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Tao Dong
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Aihua Liu
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
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Shah BM, Modi P. Breaking Barriers: Current Advances and Future Directions in Mpox Therapy. Curr Drug Targets 2024; 25:62-76. [PMID: 38151842 DOI: 10.2174/0113894501281263231218070841] [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: 09/08/2023] [Revised: 11/21/2023] [Accepted: 11/28/2023] [Indexed: 12/29/2023]
Abstract
BACKGROUND Mpox, a newly discovered zoonotic infection, can be transmitted from animal to human and between humans. Serological and genomic studies are used to identify the virus. OBJECTIVE Currently, there are no proven effective treatments for Mpox. Also, the safety and efficacy of intravenous vaccinia immune globulin, oral Tecovirimat (an inhibitor of intracellular viral release), and oral Brincidofovir (a DNA polymerase inhibitor) against the Mpox virus are uncertain, highlighting the need for more effective and safe treatments. As a result, drug repurposing has emerged as a promising strategy to identify previously licensed drugs that can be repurposed to treat Mpox. RESULTS Various approaches have been employed to identify previously approved drugs that can target specific Mpox virus proteins, including thymidylate kinase, D9 decapping enzyme, E8 protein, Topoisomerase1, p37, envelope proteins (D13, A26, and H3), F13 protein, virus's main cysteine proteases, and DNA polymerase. CONCLUSION In this summary, we provide an overview of potential drugs that could be used to treat Mpox and discuss the underlying biological processes of their actions.
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Affiliation(s)
- Bhumi M Shah
- Department of Pharmaceutical Chemistry, L.J. Institute of Pharmacy, L.J. University, Ahmedabad, Gujarat 382210, India
| | - Palmi Modi
- Department of Pharmaceutical Chemistry, L.J. Institute of Pharmacy, L.J. University, Ahmedabad, Gujarat 382210, India
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Li X, Li Y, Yu W, Jia Z, Li J, Liu Y, Yang J. Frontiers of monkeypox research: An analysis from the top 100 most influential articles in the field. Heliyon 2023; 9:e20566. [PMID: 37822624 PMCID: PMC10562927 DOI: 10.1016/j.heliyon.2023.e20566] [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: 05/16/2023] [Revised: 09/24/2023] [Accepted: 09/29/2023] [Indexed: 10/13/2023] Open
Abstract
Background Monkeypox (MPX) has made recurrence after decades as a neglected zoonotic disease. More nations have reported endemic monkeypox in the past decade than in the previous forty. The World Health Organization has warned that the world may face another significant challenge after dealing with COVID-19, a pandemic, and the Monkeypox outbreak. Early appraisal of monkeypox research and development allows researchers to anticipate solutions for large outbreaks. We conducted a bibliometric analysis of this study's top 100 cited papers to identify regional research patterns. Methods Our method was to search the SCI-Expanded database on Web of Science (WOS) for the top 100 papers that were cited in MPX on this database. We examined relevant literature from different years, journals, countries/regions, institutions, authors, and keywords.In order to create knowledge maps, we used the programs VOSviewer, Citespace, Scimago Graphica and the bibliometric online analysis platform. After compiling the relevant literature in Excel, we could estimate the field's focus and trends. Results A total of 47 journals from 36 countries and regions published the top 100 cited papers between 1999 and 2023. The majority of articles were published in EMERGING INFECTIOUS DISEASES, while the highest average number of citations per paper were found in the NEW ENGLAND JOURNAL OF MEDICINE. The UNITED STATES contributed the most publications, followed by ENGLAND and SWITZERLAND. As far as the total number of publications goes, the Centers for Disease Control & Prevention in the USA, the National Institute of Health in the USA, and the World Health Organization each contributed the most papers. The major categories are immunology, virology and infectious diseases. The top five keywords were infection, Congo, virus, smallpox, and transmission. The cluster analysis suggests MPX research will focus on safe and effective vaccines and epidemic prevention. Conclusion By using bibliometric analysis, MPX researchers can quickly and visually identify their research focus and boundaries. Although studies suggest that antiviral medicine is the best treatment, creating an effective vaccine might lessen and avoid MPX pandemics in the long term. Our findings imply that safe and effective vaccines may be the focus and trends for future MPX research. International coordination for case monitoring and identification is essential to understand monkeypox disease's ever-changing epidemiology.
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Affiliation(s)
- Xuhao Li
- School of Acupuncture-Moxibustion and Tuina, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yang Li
- School of Acupuncture-Moxibustion and Tuina, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Wenyan Yu
- School of Acupuncture-Moxibustion and Tuina, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Zhixia Jia
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jinling Li
- School of Acupuncture-Moxibustion and Tuina, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yuanxiang Liu
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jiguo Yang
- School of Acupuncture-Moxibustion and Tuina, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
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Ye L, Lei X, Xu X, Xu L, Kuang H, Xu C. Gold-based paper for antigen detection of monkeypox virus. Analyst 2023; 148:985-994. [PMID: 36722989 DOI: 10.1039/d2an02043b] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In 2022, the outbreak of the monkeypox virus occurred in many non-endemic countries, and the World Health Organization (WHO) assessed that this outbreak was "atypical". The establishment of a rapid and effective assay that can be used for the early diagnosis of monkeypox virus infection is crucial for outbreak prevention and control. In this study, the monkeypox virus A29 protein and the homologous vaccinia virus A27 protein and cowpox virus 162 protein were expressed in Escherichia coli BL21 for screening. We synthesized the monkeypox virus A2917-49 peptide as the immunogen and obtained 25 monoclonal antibodies (mAbs) against the A29 protein using mouse hybridoma techniques. Then an immunochromatographic test strip method for detecting A29 was established. The strips utilizing mAb-7C5 and 5D8 showed the best sensitivity and lowest limit of detection: 50 pg mL-1 for purified A29 and specificity tests showed that the strips did not cross-react with other orthopox viruses (vaccinia virus or cowpox virus) as well as common respiratory pathogens (SARS-CoV-2, influenza A and influenza B). Therefore, this method can be used for early and rapid diagnosis of monkeypox virus infection by antigen detection.
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Affiliation(s)
- Liya Ye
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Xianlu Lei
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Liguang Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China. .,International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
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Peri-oral Monkeypox Virus Infection: A Clinical Report with Confirmatory Polymerase Chain Reaction Findings. Vaccines (Basel) 2022; 11:vaccines11010036. [PMID: 36679881 PMCID: PMC9863311 DOI: 10.3390/vaccines11010036] [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: 11/28/2022] [Revised: 12/22/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Mpox Virus (MPXV) is a zoonotic infectious disease first identified in 1970 in rural villages in rainforest areas of central and western Africa when smallpox was in the final stages of eradication. Since May 2022, cases and sustained transmission chains of monkeypox have been reported for the first time in countries where the disease is not endemic and without cases having direct or immediate epidemiological links to areas of West or Central Africa (travel, importation of mammals). On 23 July 2022, WHO declared monkeypox a "Public Emergency of International Concern" (PHEIC). In this paper, we report two cases of a Polymerase Chain Reaction (PCR)-confirmed MPXV infection. A 39-year-old Italian male came to our attention for a suspected herpetic infection, fever, headache, and malaise, which were followed by the development of an erythematous plaque covered by vesicles on the chin, an oval ulcer with a white peripheral border on the lower lip, and a central erosive area and three pustules on the arms and trunk. During the physical examination, cervical lymphadenopathy was also detected. PCR investigation of the patient and his partner confirmed the presence of MPXV infection. Our report describes a possible clinical feature of Mpox disease and illustrates the challenge of a disease that seems to present itself in different ways.
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