Potential of Clostridium perfringens sialidase as a novel antiviral agent against avian influenza H5N1 infection in BALB/c mice

IF 2 3区 农林科学 Q4 IMMUNOLOGY
Otto Sahat Martua Silaen , Silvia Tri Widyaningtyas , Christian Marco Hadi Nugroho , Ryan Septa Kurnia , Muhammad Ade Putra , Agustin Indrawati , Desak Gede Budi Krisnamurti , Amin Soebandrio
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Abstract

The public health concern about H5N1 avian influenza persists because of its lethal nature and its capability to spread between different species and its growing resistance to conventional antiviral medications. The antiviral drug potential of sialidases from Clostridium perfringens remains under investigation because these enzymes can strip sialic acid from viral surfaces which prevents viral attachment to host cells. This study aimed to determine the antiviral effects of C. perfringens sialidase on H5N1-infected BALB/c mice through both preventive and curative treatment protocols. The mice received intranasal sialidase at two concentrations of 187.5 mU/ml and 375 mU/ml for three consecutive days either before viral exposure or after viral challenge. The study included weight tracking and ELISA tests to measure lung tissue viral antigens as well as lung tissue histopathology and IL-6 and TNF-α expression analysis. The treatment with 375 mU/ml sialidase twice proved most effective in maintaining physiological function and reducing viral load and lung tissue damage. The treatment results demonstrated that it reduced inflammatory response by lowering IL-6 and TNF-α expression levels. The research proves that C. perfringens sialidase exhibits antiviral and immunomodulatory actions when used in vivo. The curative outcome depends heavily on treatment dose and frequency which will impact future implementation. The antiviral properties of C. perfringens sialidase make it a promising therapeutic option for treating influenza virus strains that are resistant to drugs.
产气荚膜梭菌唾液酸酶在BALB/c小鼠中作为一种新型抗病毒药物的潜力
H5N1禽流感引起的公共卫生关切持续存在,因为它具有致命性和在不同物种之间传播的能力,并且对常规抗病毒药物的耐药性日益增强。产气荚膜梭菌唾液酸酶的抗病毒药物潜力仍在研究中,因为这些酶可以从病毒表面剥离唾液酸,从而阻止病毒附着在宿主细胞上。本研究旨在通过预防和治疗两种治疗方案,确定产气荚膜荚膜原唾液酸酶对h5n1感染BALB/c小鼠的抗病毒作用。小鼠在病毒暴露前或病毒攻击后连续三天接受浓度分别为187.5 mU/ml和375 mU/ml的鼻内唾液酸酶治疗。该研究包括体重跟踪和ELISA检测肺组织病毒抗原,肺组织病理学和IL-6和TNF-α表达分析。两次375 mU/ml唾液酸酶治疗在维持生理功能、减少病毒载量和肺组织损伤方面最有效。治疗结果表明,它通过降低IL-6和TNF-α的表达水平来减轻炎症反应。研究证明,产气荚膜荚膜杆菌唾液酸酶在体内具有抗病毒和免疫调节作用。治疗结果在很大程度上取决于治疗剂量和频率,这将影响未来的实施。产气荚膜荚膜原唾液酸酶的抗病毒特性使其成为治疗耐药流感病毒株的有希望的治疗选择。
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来源期刊
CiteScore
4.60
自引率
0.00%
发文量
102
审稿时长
40 days
期刊介绍: Comparative Immunology, Microbiology & Infectious Diseases aims to respond to the concept of "One Medicine" and to provide a venue for scientific exchange. Based on the concept of "Comparative Medicine" interdisciplinary cooperation between specialists in human and animal medicine is of mutual interest and benefit. Therefore, there is need to combine the respective interest of physicians, veterinarians and other health professionals for comparative studies relevant to either human or animal medicine . The journal is open to subjects of common interest related to the immunology, immunopathology, microbiology, parasitology and epidemiology of human and animal infectious diseases, especially zoonotic infections, and animal models of human infectious diseases. The role of environmental factors in disease emergence is emphasized. CIMID is mainly focusing on applied veterinary and human medicine rather than on fundamental experimental research.
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