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Adhikary S, Pathak S, Palani V, Acar A, Banerjee A, Al-Dewik NI, Essa MM, Mohammed SGAA, Qoronfleh MW. Current Technologies and Future Perspectives in Immunotherapy towards a Clinical Oncology Approach. Biomedicines 2024; 12:217. [PMID: 38255322 PMCID: PMC10813720 DOI: 10.3390/biomedicines12010217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
Immunotherapy is now established as a potent therapeutic paradigm engendering antitumor immune response against a wide range of malignancies and other diseases by modulating the immune system either through the stimulation or suppression of immune components such as CD4+ T cells, CD8+ T cells, B cells, monocytes, macrophages, dendritic cells, and natural killer cells. By targeting several immune checkpoint inhibitors or blockers (e.g., PD-1, PD-L1, PD-L2, CTLA-4, LAG3, and TIM-3) expressed on the surface of immune cells, several monoclonal antibodies and polyclonal antibodies have been developed and already translated clinically. In addition, natural killer cell-based, dendritic cell-based, and CAR T cell therapies have been also shown to be promising and effective immunotherapeutic approaches. In particular, CAR T cell therapy has benefited from advancements in CRISPR-Cas9 genome editing technology, allowing the generation of several modified CAR T cells with enhanced antitumor immunity. However, the emerging SARS-CoV-2 infection could hijack a patient's immune system by releasing pro-inflammatory interleukins and cytokines such as IL-1β, IL-2, IL-6, and IL-10, and IFN-γ and TNF-α, respectively, which can further promote neutrophil extravasation and the vasodilation of blood vessels. Despite the significant development of advanced immunotherapeutic technologies, after a certain period of treatment, cancer relapses due to the development of resistance to immunotherapy. Resistance may be primary (where tumor cells do not respond to the treatment), or secondary or acquired immune resistance (where tumor cells develop resistance gradually to ICIs therapy). In this context, this review aims to address the existing immunotherapeutic technologies against cancer and the resistance mechanisms against immunotherapeutic drugs, and explain the impact of COVID-19 on cancer treatment. In addition, we will discuss what will be the future implementation of these strategies against cancer drug resistance. Finally, we will emphasize the practical steps to lay the groundwork for enlightened policy for intervention and resource allocation to care for cancer patients.
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Affiliation(s)
- Subhamay Adhikary
- Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Chennai 603103, India
| | - Surajit Pathak
- Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Chennai 603103, India
| | - Vignesh Palani
- Faculty of Medicine, Chettinad Hospital and Research Institute (CHRI), Chennai 603103, India
| | - Ahmet Acar
- Department of Biological Sciences, Middle East Technical University, 06800 Ankara, Türkiye;
| | - Antara Banerjee
- Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Chennai 603103, India
| | - Nader I. Al-Dewik
- Department of Pediatrics, Women’s Wellness and Research Center, Hamad Medical Corporation, Doha 00974, Qatar;
| | - Musthafa Mohamed Essa
- College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat 123, Oman
| | | | - M. Walid Qoronfleh
- Research & Policy Division, Q3 Research Institute (QRI), Ypsilanti, MI 48917, USA
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2
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Ji L, Li T, Chen H, Yang Y, Lu E, Liu J, Qiao W, Chen H. The crucial regulatory role of type I interferon in inflammatory diseases. Cell Biosci 2023; 13:230. [PMID: 38124132 PMCID: PMC10734085 DOI: 10.1186/s13578-023-01188-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023] Open
Abstract
Type I interferon (IFN-I) plays crucial roles in the regulation of inflammation and it is associated with various inflammatory diseases including systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and periodontitis, impacting people's health and quality of life. It is well-established that IFN-Is affect immune responses and inflammatory factors by regulating some signaling. However, currently, there is no comprehensive overview of the crucial regulatory role of IFN-I in distinctive pathways as well as associated inflammatory diseases. This review aims to provide a narrative of the involvement of IFN-I in different signaling pathways, mainly mediating the related key factors with specific targets in the pathways and signaling cascades to influence the progression of inflammatory diseases. As such, we suggested that IFN-Is induce inflammatory regulation through the stimulation of certain factors in signaling pathways, which displays possible efficient treatment methods and provides a reference for the precise control of inflammatory diseases.
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Affiliation(s)
- Ling Ji
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Tianle Li
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Huimin Chen
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Yanqi Yang
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
- Division of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Eryi Lu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, China
| | - Jieying Liu
- Department of Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Qiao
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China.
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Level 3, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, People's Republic of China.
| | - Hui Chen
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China.
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Level 3, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, People's Republic of China.
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Jiménez-Cortegana C, Salamanca E, Palazón-Carrión N, Sánchez-Jiménez F, Pérez-Pérez A, Vilariño-García T, Fuentes S, Martín S, Jiménez M, Galván R, Rodríguez-Chacón C, Sánchez-Mora C, Moreno-Mellado E, Gutiérrez-Gutiérrez B, Álvarez N, Sosa A, Garnacho-Montero J, de la Cruz-Merino L, Rodríguez-Baño J, Sánchez-Margalet V. Circulating myeloid-derived suppressor cells may be a useful biomarker in the follow-up of unvaccinated COVID-19 patients after hospitalization. Front Immunol 2023; 14:1266659. [PMID: 38035104 PMCID: PMC10685891 DOI: 10.3389/fimmu.2023.1266659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
SARS-CoV-2 infection is the cause of the disease named COVID-19, a major public health challenge worldwide. Differences in the severity, complications and outcomes of the COVID-19 are intriguing and, patients with similar baseline clinical conditions may have very different evolution. Myeloid-derived suppressor cells (MDSCs) have been previously found to be recruited by the SARS-CoV-2 infection and may be a marker of clinical evolution in these patients. We have studied 90 consecutive patients admitted in the hospital before the vaccination program started in the general population, to measure MDSCs and lymphocyte subpopulations at admission and one week after to assess the possible association with unfavorable outcomes (dead or Intensive Care Unit admission). We analyzed MDSCs and lymphocyte subpopulations by flow cytometry. In the 72 patients discharged from the hospital, there were significant decreases in the monocytic and total MDSC populations measured in peripheral blood after one week but, most importantly, the number of MDSCs (total and both monocytic and granulocytic subsets) were much higher in the 18 patients with unfavorable outcome. In conclusion, the number of circulating MDSCs may be a good marker of evolution in the follow-up of unvaccinated patients admitted in the hospital with the diagnosis of COVID-19.
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Affiliation(s)
- Carlos Jiménez-Cortegana
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, Seville, Spain
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - Elena Salamanca
- Infectious Diseases and, Microbiology and Preventive Medicine Unit, Virgen Macarena University Hospital/Departments of Medicine and Microbiology, University of Seville/Biomedicine Institute of Seville (IBiS), Seville, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
| | - Natalia Palazón-Carrión
- Clinical Oncology Service, Virgen Macarena University Hospital, University of Seville, Seville, Spain
| | - Flora Sánchez-Jiménez
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, Seville, Spain
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - Antonio Pérez-Pérez
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, Seville, Spain
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - Teresa Vilariño-García
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, Seville, Spain
| | - Sandra Fuentes
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - Salomón Martín
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - Marta Jiménez
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - Raquel Galván
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
| | | | - Catalina Sánchez-Mora
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
| | - Elisa Moreno-Mellado
- Infectious Diseases and, Microbiology and Preventive Medicine Unit, Virgen Macarena University Hospital/Departments of Medicine and Microbiology, University of Seville/Biomedicine Institute of Seville (IBiS), Seville, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
| | - Belén Gutiérrez-Gutiérrez
- Infectious Diseases and, Microbiology and Preventive Medicine Unit, Virgen Macarena University Hospital/Departments of Medicine and Microbiology, University of Seville/Biomedicine Institute of Seville (IBiS), Seville, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
| | - Nerissa Álvarez
- Intensive Care Unit, Virgen Macarena University Hospital, Seville, Spain
| | - Alberto Sosa
- Intensive Care Unit, Virgen Macarena University Hospital, Seville, Spain
| | | | - Luis de la Cruz-Merino
- Clinical Oncology Service, Virgen Macarena University Hospital, University of Seville, Seville, Spain
| | - Jesús Rodríguez-Baño
- Infectious Diseases and, Microbiology and Preventive Medicine Unit, Virgen Macarena University Hospital/Departments of Medicine and Microbiology, University of Seville/Biomedicine Institute of Seville (IBiS), Seville, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, Seville, Spain
- Department of Laboratory Medicine, Virgen Macarena University Hospital, Seville, Spain
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Muyayalo KP, Gong GS, Kiyonga Aimeé K, Liao AH. Impaired immune response against SARS-CoV-2 infection is the major factor indirectly altering reproductive function in COVID-19 patients: a narrative review. HUM FERTIL 2023; 26:778-796. [PMID: 37811836 DOI: 10.1080/14647273.2023.2262757] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/25/2023] [Indexed: 10/10/2023]
Abstract
Coronavirus disease 2019 (COVID-19) is an infectious disease affecting multiple systems and organs, including the reproductive system. SARS-CoV-2, the virus that causes COVID-19, can damage reproductive organs through direct (angiotensin converting enzyme-2, ACE-2) and indirect mechanisms. The immune system plays an essential role in the homeostasis and function of the male and female reproductive systems. Therefore, an altered immune response related to infectious and inflammatory diseases can affect reproductive function and fertility in both males and females. This narrative review discussed the dysregulation of innate and adaptive systems induced by SARS-CoV-2 infection. We reviewed the evidence showing that this altered immune response in COVID-19 patients is the major indirect mechanism leading to adverse reproduction outcomes in these patients. We summarized studies reporting the long-term effect of SARS-CoV-2 infection on women's reproductive function and proposed the chronic inflammation and chronic autoimmunity characterizing long COVID as potential underlying mechanisms. Further studies are needed to clarify the role of autoimmunity and chronic inflammation (long COVID) in altered female reproduction function in COVID-19.
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Affiliation(s)
- Kahindo P Muyayalo
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
- Department of Obstetrics and Gynecology, University of Kinshasa, Kinshasa, D. R. Congo
| | - Guang-Shun Gong
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Kahindo Kiyonga Aimeé
- Department of Clinical Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, People's Republic of China
- Department of Tropical Medicine Infectious and Parasitic Diseases, University of Kinshasa, Kinshasa, D. R. Congo
| | - Ai-Hua Liao
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
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Murad D, Zafar Paracha R, Saeed MT, Ahmad J, Mushtaq A, Humayun M. Modelling and analysis of the complement system signalling pathways: roles of C3, C5a and pro-inflammatory cytokines in SARS-CoV-2 infection. PeerJ 2023; 11:e15794. [PMID: 37744234 PMCID: PMC10517668 DOI: 10.7717/peerj.15794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 07/04/2023] [Indexed: 09/26/2023] Open
Abstract
The complement system is an essential part of innate immunity. It is activated by invading pathogens causing inflammation, opsonization, and lysis via complement anaphylatoxins, complement opsonin's and membrane attack complex (MAC), respectively. However, in SARS-CoV-2 infection overactivation of complement system is causing cytokine storm leading to multiple organs damage. In this study, the René Thomas kinetic logic approach was used for the development of biological regulatory network (BRN) to model SARS-CoV-2 mediated complement system signalling pathways. Betweenness centrality analysis in cytoscape was adopted for the selection of the most biologically plausible states in state graph. Among the model results, in strongly connected components (SCCs) pro-inflammatory cytokines (PICyts) oscillatory behaviour between recurrent generation and downregulation was found as the main feature of SARS-CoV-2 infection. Diversion of trajectories from the SCCs leading toward hyper-inflammatory response was found in agreement with in vivo studies that overactive innate immunity response caused PICyts storm during SARS-CoV-2 infection. The complex of negative regulators FI, CR1 and DAF in the inhibition of complement peptide (C5a) and PICyts was found desirable to increase immune responses. In modelling role of MAC and PICyts in lowering of SARS-CoV-2 titre was found coherent with experimental studies. Intervention in upregulation of C5a and PICyts by C3 was found helpful in back-and-forth variation of signalling pattern linked with the levels of PICyts. Moreover, intervention in upregulation of PICyts by C5a was found productive in downregulation of all activating factors in the normal SCCs. However, the computational model predictions require experimental studies to be validated by exploring the activation role of C3 and C5a which could change levels of PICyts at various phases of SARS-CoV-2 infection.
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Affiliation(s)
- Didar Murad
- School of Interdisciplinary Engineering and Sciences/Department of Sciences, National University of Science and Technology, Islamabad, Pakistan
| | - Rehan Zafar Paracha
- School of Interdisciplinary Engineering and Sciences/Department of Sciences, National University of Science and Technology, Islamabad, Pakistan
| | - Muhammad Tariq Saeed
- School of Interdisciplinary Engineering and Sciences/Department of Sciences, National University of Science and Technology, Islamabad, Pakistan
| | - Jamil Ahmad
- Department of Computer Science and Information Technology, University of Malakand, Chakdara, Malakand, Pakistan
| | - Ammar Mushtaq
- School of Interdisciplinary Engineering and Sciences/Department of Sciences, National University of Science and Technology, Islamabad, Pakistan
| | - Maleeha Humayun
- School of Interdisciplinary Engineering and Sciences/Department of Sciences, National University of Science and Technology, Islamabad, Pakistan
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6
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Mallis P. Exploring the Immunomodulatory Properties of Stem Cells in Combating COVID-19: Can We Expect More? Bioengineering (Basel) 2023; 10:803. [PMID: 37508830 PMCID: PMC10376782 DOI: 10.3390/bioengineering10070803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
Since the first appearance of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) in December 2019, the disease has displayed a remarkable interindividual variability in the global population, resulting in different mortality and morbidity rates. Still, an effective cure against SARS-CoV-2 has not been developed, and therefore, alternative therapeutic protocols must also be evaluated. Considering that stem cells, especially Mesenchymal Stromal Cells (MSCs), are characterized by both regenerative and immunomodulatory properties and that their safety and tolerability have been investigated previously, these cells could potentially be applied against coronavirus disease 19 (COVID-19). In addition, an individual's genetic background is further related to disease pathogenesis, especially rare Inborn Errors of Immunity (IEIs), autoantibodies against Interferon type I, and the presence of different Human Leukocyte Antigens (HLA) alleles, which are actively associated with protection or susceptibility in relation to SARS-CoV-2. Herein, the use of MSCs as a potential stem cell therapy will require a deep understanding of their immunomodulatory properties associated with their HLA alleles. In such a way, HLA-restricted MSC lines can be developed and applied precisely, offering more solutions to clinicians in attenuating the mortality of SARS-CoV-2.
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Affiliation(s)
- Panagiotis Mallis
- Hellenic Cord Blood Bank, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27 Athens, Greece
- Immunology Department & National Tissue Typing Center, General Hospital of Athens "Gennimatas", 154 Mesogeion Ave., 115 27 Athens, Greece
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7
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Chen P, Wu M, He Y, Jiang B, He ML. Metabolic alterations upon SARS-CoV-2 infection and potential therapeutic targets against coronavirus infection. Signal Transduct Target Ther 2023; 8:237. [PMID: 37286535 DOI: 10.1038/s41392-023-01510-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 04/18/2023] [Accepted: 05/19/2023] [Indexed: 06/09/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) caused by coronavirus SARS-CoV-2 infection has become a global pandemic due to the high viral transmissibility and pathogenesis, bringing enormous burden to our society. Most patients infected by SARS-CoV-2 are asymptomatic or have mild symptoms. Although only a small proportion of patients progressed to severe COVID-19 with symptoms including acute respiratory distress syndrome (ARDS), disseminated coagulopathy, and cardiovascular disorders, severe COVID-19 is accompanied by high mortality rates with near 7 million deaths. Nowadays, effective therapeutic patterns for severe COVID-19 are still lacking. It has been extensively reported that host metabolism plays essential roles in various physiological processes during virus infection. Many viruses manipulate host metabolism to avoid immunity, facilitate their own replication, or to initiate pathological response. Targeting the interaction between SARS-CoV-2 and host metabolism holds promise for developing therapeutic strategies. In this review, we summarize and discuss recent studies dedicated to uncovering the role of host metabolism during the life cycle of SARS-CoV-2 in aspects of entry, replication, assembly, and pathogenesis with an emphasis on glucose metabolism and lipid metabolism. Microbiota and long COVID-19 are also discussed. Ultimately, we recapitulate metabolism-modulating drugs repurposed for COVID-19 including statins, ASM inhibitors, NSAIDs, Montelukast, omega-3 fatty acids, 2-DG, and metformin.
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Affiliation(s)
- Peiran Chen
- Department of Biomedical Sciences, City University of Hong Kong, HKSAR, Hong Kong, China
| | - Mandi Wu
- Department of Biomedical Sciences, City University of Hong Kong, HKSAR, Hong Kong, China
| | - Yaqing He
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, Guangdong, China
| | - Binghua Jiang
- Cell Signaling and Proteomic Center, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Ming-Liang He
- Department of Biomedical Sciences, City University of Hong Kong, HKSAR, Hong Kong, China.
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Nichols JH, Williams EP, Parvathareddy J, Cao X, Kong Y, Fitzpatrick E, Webby RJ, Jonsson CB. Upper Respiratory Infection Drives Clinical Signs and Inflammatory Responses Following Heterologous Challenge of SARS-CoV-2 Variants of Concern in K18 Mice. Viruses 2023; 15:v15040946. [PMID: 37112926 PMCID: PMC10144791 DOI: 10.3390/v15040946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/30/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
The evolution of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has resulted in the emergence of several variants of concern (VOC) with increased immune evasion and transmissibility. This has motivated studies to assess protection conferred by earlier strains following infection or vaccination to each new VOC. We hypothesized that while NAbs play a major role in protection against infection and disease, a heterologous reinfection or challenge may gain a foothold in the upper respiratory tract (URT) and result in a self-limited viral infection accompanied by an inflammatory response. To test this hypothesis, we infected K18-hACE2 mice with SARS-CoV-2 USA-WA1/2020 (WA1) and, after 24 days, challenged with WA1, Alpha, or Delta. While NAb titers against each virus were similar across all cohorts prior to challenge, the mice challenged with Alpha and Delta showed weight loss and upregulation of proinflammatory cytokines in the URT and lower RT (LRT). Mice challenged with WA1 showed complete protection. We noted increased levels of viral RNA transcripts only in the URT of mice challenged with Alpha and Delta. In conclusion, our results suggested self-limiting breakthrough infections of Alpha or Delta in the URT, which correlated with clinical signs and a significant inflammatory response in mice.
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Affiliation(s)
- Jacob H Nichols
- Department of Microbiology, Immunology and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Evan P Williams
- Department of Microbiology, Immunology and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Jyothi Parvathareddy
- Regional Biocontainment Laboratory, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Xueyuan Cao
- Department of Health Promotion and Disease Prevention, College of Nursing, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Ying Kong
- Department of Microbiology, Immunology and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Elizabeth Fitzpatrick
- Department of Microbiology, Immunology and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Richard J Webby
- St. Jude Children's Research Hospital, Memphis, TN 38163, USA
| | - Colleen B Jonsson
- Department of Microbiology, Immunology and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Regional Biocontainment Laboratory, University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Institute for the Study of Host-Pathogen Systems, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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Li X, Wang Y, Pan J, Xu J, Zhou Q. Combined Diagnosis of SARS-CoV-2: Rapid Antigen Detection as an Adjunct to Nucleic Acid Detection. Lab Med 2023; 54:e37-e43. [PMID: 35895307 PMCID: PMC9384589 DOI: 10.1093/labmed/lmac089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Coronavirus disease 2019 is a serious threat to human life, and early diagnosis and screening can help control the COVID-19 pandemic. The high sensitivity of reverse transcriptase-polymerase chain reaction (RT-PCR) assay is the gold standard for the diagnosis of COVID-19, but there are still some false-negative results. Rapid antigen detection (RAD) is recommended by the World Health Organization (WHO) as a screening method for COVID-19. This review analyzed the characteristics of RDT and found that although the overall sensitivity of RAD was not as high as that of RT-PCR, but RAD was more sensitive in COVID-19 patients within 5 days of the onset of symptoms and in COVID-19 patients with Ct ≤ 25. Therefore, RAD can be used as an adjunct to RT-PCR for screening patients with early COVID-19. Finally, this review provides a combined diagnostic protocol for RAD and nucleic acid testing with the aim of providing a feasible approach for COVID-19 screening.
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Affiliation(s)
- Xuewen Li
- Department of Laboratory Medicine, First Hospital of Jilin University, Changchun, China
| | - Yiting Wang
- Department of Laboratory Medicine, First Hospital of Jilin University, Changchun, China
| | - Junqi Pan
- Bachelor of Biomedicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Jiancheng Xu
- Department of Laboratory Medicine, First Hospital of Jilin University, Changchun, China
| | - Qi Zhou
- Department of Pediatrics, First Hospital of Jilin University, Changchun, China
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