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Fan W, You B, Wang X, Zheng X, Xu A, Liu Y, Peng H, Yin W, Xu M, Dong X, Liu Y, Zhao P, Liang X. Safety and efficacy of lentinan nasal drops in patients infected with the variant of COVID-19: a randomized, placebo-controlled trial. Front Pharmacol 2023; 14:1292479. [PMID: 38108068 PMCID: PMC10722177 DOI: 10.3389/fphar.2023.1292479] [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: 09/11/2023] [Accepted: 11/22/2023] [Indexed: 12/19/2023] Open
Abstract
Objective: Lentinan has antiviral, anti-tumor, immunomodulatory, stimulating interferon production, and other pharmacological effects. Previous animal experiments have shown that lentinan nasal drops can assist [Corona Virus Disease 2019) COVID-19] vaccine to induce high levels of neutralizing antibodies and can effectively resist the invasion of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This study aimed to evaluate the safety and efficacy of lentinan nasal drops in patients infected with Omicron (SARS-CoV-2 variant) through a dose-escalation study and a placebo-controlled trial. Methods: A randomized, placebo-controlled trial. The study was divided into two phases: Phase I: a dose escalation trial in which 24 COVID-19 patients were enrolled, that is, 12 in the escalation dose group (50, 75, and 100 µg/day) and 12 in the standard treatment group. The aim was to evaluate the safety and tolerance of lentinan nasal drops. The second stage was a placebo-controlled study. The optimal dose group of the first stage was used as the therapeutic dose, and the sample size was expanded to verify the anti-COVID-19 efficacy of lentinan nasal drops. Results: In the dose-increasing study, lentinan nasal drops showed good safety, and no serious adverse reactions occurred. The virus shedding time of the 100 µg dose group was significantly shorter than that in the control group (7.75 ± 1.71 VS 13.41 ± 3.8 days) (p = 0.01), and the 100 µg/day lentinan nasal drops were tolerated well. The results of the placebo-controlled study showed that compared with that in the placebo group, the time for COVID-19 antigen to turn negative was significantly shorter in the 100 µg lentinan nasal drop group (p = 0.0298), but no significant difference was observed in symptom improvement between the two groups. In the placebo-controlled study, two patients experienced mild nasal discomfort with nasal drops, but the symptoms relieved themselves. Conclusion: Lentinan nasal drops are tolerated well and can shorten the time of virus clearance.
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Affiliation(s)
- Wenhan Fan
- Department of Infection Diseases, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
| | - Benming You
- Department of Pharmacy, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
| | - Xinyu Wang
- Department of Infection Diseases, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
| | - Xu Zheng
- Department of Microbiology, PLA Key Laboratory of Biodetection and Biodefense, Shanghai Key Laboratory of Medical Biodefense, Navy Military Medical University, Shanghai, China
| | - Aijing Xu
- Department of Infection Diseases, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
| | - Yangang Liu
- Department of Microbiology, PLA Key Laboratory of Biodetection and Biodefense, Shanghai Key Laboratory of Medical Biodefense, Navy Military Medical University, Shanghai, China
| | - Haoran Peng
- Department of Microbiology, PLA Key Laboratory of Biodetection and Biodefense, Shanghai Key Laboratory of Medical Biodefense, Navy Military Medical University, Shanghai, China
| | - Wei Yin
- Department of Infection Diseases, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
| | - Mingxiao Xu
- Department of Infection Diseases, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
| | - Xu Dong
- Department of Infection Diseases, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
| | - Yayun Liu
- Department of Infection Diseases, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
| | - Ping Zhao
- Department of Microbiology, PLA Key Laboratory of Biodetection and Biodefense, Shanghai Key Laboratory of Medical Biodefense, Navy Military Medical University, Shanghai, China
| | - Xuesong Liang
- Department of Infection Diseases, First Affiliated Hospital of Navy Military Medical University, Shanghai, China
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2
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Wu Y, Liang X, Mao C, Jiang Y. The Distinct Properties of Polysaccharide Nanoparticles Tune Immune Responses against mRNA Antigen via Stimulator of Interferon Genes-Mediated Autophagy and Inflammasome. ACS NANO 2023; 17:21782-21798. [PMID: 37922196 DOI: 10.1021/acsnano.3c07632] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
mRNA antigens require powerful nanocarriers for efficient delivery, as well as immunomodulators for controlling their excessive immunogenicity. While lipid nanoparticles (LNPs) used in mRNA vaccines exhibited systemic toxicity, there is an urgent need for developing potential nanoparticles with strong immunoenhancing effects for mRNA antigens. Although natural polysaccharides as adjuvants assisted various types of antigens in triggering potent immune responses, they have been rarely investigated in mRNA vaccines. Here, we constructed four polysaccharide nanoparticles with different molecular weights (MWs) to deliver and protect mRNA antigens, and boosted antigen cross-presentation, DC maturation, CD4+/CD8+T cell responses and humoral immune responses. Importantly, the immunoenhancing capacities of polysaccharide nanoparticles were highly dependent on their MW properties. CS NPs with high MW initiated stimulator of interferon genes (STING)-mediated autophagy and NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome signaling, consequently possessing superior mRNA antigen-specific immune responses in vitro and in vivo. In contrast, CS NPs with low MWs induced NLRP3 signaling without STING or autophagy activation, which failed to induce robust immune responses. Therefore, it uncovered the MW-dependent immunoenhancing effects and mechanism of polysaccharide nanoparticles, providing a platform for designing potential nanosized polysaccharide immunomodulators for mRNA vaccines.
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Affiliation(s)
- Yue Wu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xiaoyu Liang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Canquan Mao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Yuhong Jiang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
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Timm TG, Costa TM, Alberton MD, Helm CV, Tavares LBB. Mushroom β-glucans: application and innovation for food industry and immunotherapy. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12656-4. [PMID: 37410138 DOI: 10.1007/s00253-023-12656-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 07/07/2023]
Abstract
Among the most important sources of β-glucans are edible and medicinal mushrooms. These molecules are components of the cellular wall of basidiomycete fungi (mushrooms) and can be extracted even from the basidiocarp as the mycelium and its cultivation extracts or biomasses. Mushroom β-glucans are recognized by their potential effects as immunostimulants and immunosuppressants. They are highlighted as anticholesterolemic, anti-inflammatory, adjuvant in diabetes mellitus, mycotherapy for cancer treatment, as well as adjuvants for COVID-19 vaccines. Due to their relevance, several techniques of β-glucans extraction, purification, and analysis have already been described. Despite the previous knowledge of β-glucans' benefits for human nutrition and health, the main information about this topic refers to the molecular identification, properties, and benefits, as well as their synthesis and action on cells. Studies on biotechnology industry applications (product development) and the registered products of β-glucans from mushrooms are still limited and more common for feed and healthcare. In this context, this paper reviews the biotechnological production of food products containing β-glucans from basidiomycete fungi, focusing on food enrichment, and presents a new perspective on fungi β-glucans' use as potential immunotherapy agents. KEY POINTS: • Mushrooms' β-glucans for product development in the biotechnology industry • Biotechnological production of food products containing mushrooms' β-glucans • Basidiomycete fungi β-glucans are used as potential immunotherapy agents.
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Affiliation(s)
- Thaynã Gonçalves Timm
- Environmental Engineering Graduate Program, Regional University of Blumenau, Blumenau, Santa Catarina, Brazil.
| | | | - Michele Debiasi Alberton
- Pharmaceutical Science Department, Regional University of Blumenau, Blumenau, Santa Catarina, Brazil
| | - Cristiane Vieira Helm
- Brazilian Agricultural Research Corporation, Research Center of Forestry - Embrapa Florestas, Colombo, Paraná, Brazil
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4
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Zhong X, Wang G, Li F, Fang S, Zhou S, Ishiwata A, Tonevitsky AG, Shkurnikov M, Cai H, Ding F. Immunomodulatory Effect and Biological Significance of β-Glucans. Pharmaceutics 2023; 15:1615. [PMID: 37376063 DOI: 10.3390/pharmaceutics15061615] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/16/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
β-glucan, one of the homopolysaccharides composed of D-glucose, exists widely in cereals and microorganisms and possesses various biological activities, including anti-inflammatory, antioxidant, and anti-tumor properties. More recently, there has been mounting proof that β-glucan functions as a physiologically active "biological response modulator (BRM)", promoting dendritic cell maturation, cytokine secretion, and regulating adaptive immune responses-all of which are directly connected with β-glucan-regulated glucan receptors. This review focuses on the sources, structures, immune regulation, and receptor recognition mechanisms of β-glucan.
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Affiliation(s)
- Xuemei Zhong
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus, Sun Yat-sen University, Shenzhen 518107, China
- Medical College, Shaoguan University, Shaoguan 512026, China
| | - Guoqing Wang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus, Sun Yat-sen University, Shenzhen 518107, China
| | - Fu Li
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Sixian Fang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus, Sun Yat-sen University, Shenzhen 518107, China
| | - Siai Zhou
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus, Sun Yat-sen University, Shenzhen 518107, China
| | - Akihiro Ishiwata
- RIKEN Cluster for Pioneering Research, Wako 351-0198, Saitama, Japan
| | - Alexander G Tonevitsky
- Faculty of Biology and Biotechnology, National Research University Higher School of Economics, Moscow 117418, Russia
| | - Maxim Shkurnikov
- Faculty of Biology and Biotechnology, National Research University Higher School of Economics, Moscow 117418, Russia
| | - Hui Cai
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus, Sun Yat-sen University, Shenzhen 518107, China
| | - Feiqing Ding
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus, Sun Yat-sen University, Shenzhen 518107, China
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Nordin AH, Husna SMN, Ahmad Z, Nordin ML, Ilyas RA, Azemi AK, Ismail N, Siti NH, Ngadi N, Azami MSM, Mohamad Norpi AS, Reduan MFH, Osman AY, Pratama DAOA, Nabgan W, Shaari R. Natural Polymeric Composites Derived from Animals, Plants, and Microbes for Vaccine Delivery and Adjuvant Applications: A Review. Gels 2023; 9:227. [PMID: 36975676 PMCID: PMC10048722 DOI: 10.3390/gels9030227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/08/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
A key element in ensuring successful immunization is the efficient delivery of vaccines. However, poor immunogenicity and adverse inflammatory immunogenic reactions make the establishment of an efficient vaccine delivery method a challenging task. The delivery of vaccines has been performed via a variety of delivery methods, including natural-polymer-based carriers that are relatively biocompatible and have low toxicity. The incorporation of adjuvants or antigens into biomaterial-based immunizations has demonstrated better immune response than formulations that just contain the antigen. This system may enable antigen-mediated immunogenicity and shelter and transport the cargo vaccine or antigen to the appropriate target organ. In this regard, this work reviews the recent applications of natural polymer composites from different sources, such as animals, plants, and microbes, in vaccine delivery systems.
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Affiliation(s)
- Abu Hassan Nordin
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Arau 02600, Perlis, Malaysia
| | - Siti Muhamad Nur Husna
- Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Arau 02600, Perlis, Malaysia
| | - Zuliahani Ahmad
- Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Arau 02600, Perlis, Malaysia
| | - Muhammad Luqman Nordin
- Department of Clinical Studies, Faculty of Veterinary Medicine, Universiti Malaysia Kelantan, Pengkalan Chepa, Kota Bharu 16100, Kelantan, Malaysia
- Centre for Veterinary Vaccinology (VetVaCC), Faculty of Veterinary Medicine, Universiti Malaysia Kelantan, Pengkalan Chepa, Kota Bharu 16100, Kelantan, Malaysia
| | - Rushdan Ahmad Ilyas
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- Centre for Advanced Composite Materials (CACM), Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia
| | - Ahmad Khusairi Azemi
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia
| | - Noraznawati Ismail
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia
| | - Nordin Hawa Siti
- Pharmacology Unit, School of Basic Medical Sciences, Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Terengganu 20400, Terengganu, Malaysia
| | - Norzita Ngadi
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
| | | | - Abdin Shakirin Mohamad Norpi
- Faculty Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh 30450, Perak, Malaysia
| | - Mohd Farhan Hanif Reduan
- Department of Clinical Studies, Faculty of Veterinary Medicine, Universiti Malaysia Kelantan, Pengkalan Chepa, Kota Bharu 16100, Kelantan, Malaysia
- Centre for Veterinary Vaccinology (VetVaCC), Faculty of Veterinary Medicine, Universiti Malaysia Kelantan, Pengkalan Chepa, Kota Bharu 16100, Kelantan, Malaysia
| | - Abdinasir Yusuf Osman
- The Royal Veterinary College, University of London, Hawkshead Lane, North Mymms, Hatfield AL9 7TA, Hertfordshire, UK
- National Institutes of Health (NIH), Ministry of Health, Corso Somalia Street, Shingani, Mogadishu P.O. Box 22, Somalia
| | | | - Walid Nabgan
- Departament d’Enginyeria Química, Universitat Rovira I Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain
| | - Rumaizi Shaari
- Department of Clinical Studies, Faculty of Veterinary Medicine, Universiti Malaysia Kelantan, Pengkalan Chepa, Kota Bharu 16100, Kelantan, Malaysia
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6
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Bhoite R, Satyavrat V, Premasudha Sadananda M. Clinical benefits of β-glucan supplementation in children: a review. DISCOVER FOOD 2022. [PMCID: PMC9793387 DOI: 10.1007/s44187-022-00038-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AbstractMalnutrition is a global concern since it affects 130 million children under the age of 5 worldwide. The child’s immunity is brutally compromised, making them susceptible to various diseases and infections, leading to a high mortality rate. Multiple strategies have been implemented to strengthen immunity in children with compromised immunity, such as rendering a balanced diet, fortifying food, dietary supplements, and introducing potential natural dietary fibers to maintain good nutrition status, such as β-glucan. A class of biologically active polysaccharides, sourced from yeast, mushroom, bacteria, and cereals with versatile immunomodulatory benefits that potentially primes the host immune system, drives several metabolic health effects, increases infection resistance, shields against the damaging effects of stress, and maintains healthy energy levels. This review focuses on the capabilities, underlying mechanisms, immune-stimulating potency, and clinically meaningful shreds of evidence to substantiate the multiple health benefits of β-glucan in children. Although, more clinical studies are required, current findings confirms the various biological response modifying abilities of β-glucan that may notably aid in the development of a strong immune system in children for their overall health and wellbeing.
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Affiliation(s)
- Rachana Bhoite
- Dr Reddy’s Laboratories Pvt Ltd, Ameerpet, Hyderabad, India
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7
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Zhang W, He J, Hu Y, Lu J, Zhao J, Li P. Chemical Structure and Immune Activation of a Glucan From Rhizoma Acori Tatarinowii. Front Nutr 2022; 9:942241. [PMID: 35845784 PMCID: PMC9277461 DOI: 10.3389/fnut.2022.942241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 06/06/2022] [Indexed: 11/24/2022] Open
Abstract
Rhizoma Acori Tatarinowii is a traditional Chinese herb used to treat depression and coronary heart disease. Studies on its active components mainly focus on small molecular compounds such as asarone and other essential oil components, while the large molecular active components such as polysaccharides are ignored. In this study, we aimed to study the chemical structure and immune activation of polysaccharides from Rhizoma Acori Tatarinowii. In this study, a polysaccharide (RATAPW) was isolated and purified by DEAE-52 cellulose and Sephadex G-100 column chromatography from alkali extraction polysaccharide of Rhizoma Acori Tatarinowii. The average molecular weight of RATAPW was 2.51 × 104 Da, and the total carbohydrate contents of RATAPW were 98.23 ± 0.29%. The monosaccharide composition, methylation, and nuclear magnetic resonance (NMR) analysis results displayed that the polysaccharide was α-1,4-glucan with short α-1,6 branches. Immunofluorescence assay and inhibitor neutralization assay indicated that RATAPW could promote the TNF-α production of RAW264.7 macrophage through the nuclear factor kappa B (NF-κB) molecular signaling pathway. Treatment with 200 μg/ml of RATAPW enhanced a 38.77% rise in the proliferation rate of spleen lymphocytes. RATAPW also enhances ConA-induced T cells and lipopolysaccharide (LPS)-induced B cell proliferation in a dose-dependent effect. Our study lays a foundation for the discovery of natural polysaccharide immune modulators or functional food from Rhizoma Acori Tatarinowii.
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Yang K, Holt M, Fan M, Lam V, Yang Y, Ha T, Williams DL, Li C, Wang X. Cardiovascular Dysfunction in COVID-19: Association Between Endothelial Cell Injury and Lactate. Front Immunol 2022; 13:868679. [PMID: 35401579 PMCID: PMC8984030 DOI: 10.3389/fimmu.2022.868679] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/01/2022] [Indexed: 12/27/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19), an infectious respiratory disease propagated by a new virus known as Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), has resulted in global healthcare crises. Emerging evidence from patients with COVID-19 suggests that endothelial cell damage plays a central role in COVID-19 pathogenesis and could be a major contributor to the severity and mortality of COVID-19. Like other infectious diseases, the pathogenesis of COVID-19 is closely associated with metabolic processes. Lactate, a potential biomarker in COVID-19, has recently been shown to mediate endothelial barrier dysfunction. In this review, we provide an overview of cardiovascular injuries and metabolic alterations caused by SARS-CoV-2 infection. We also propose that lactate plays a potential role in COVID-19-driven endothelial cell injury.
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Affiliation(s)
- Kun Yang
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Matthew Holt
- James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Min Fan
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Victor Lam
- College of Arts and Science, New York University, New York City, NY, United States
| | - Yong Yang
- James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Tuanzhu Ha
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - David L. Williams
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Chuanfu Li
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Xiaohui Wang
- Department of Surgery, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
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