Development of monoclonal antibodies against polar filaments and spore valves of Myxobolus honghuensis (Myxosporea: Bivalvulida)

Diseases of Aquatic Organisms

Luo Jia¹  Zemao Gu¹  Junfa Yuan¹  Yanhua Zhai¹  Dan Li¹ 

关键词: Parasite;    Carassius auritus gibelio;    Immunofluorescence;    Diagnostic methods;    Specificity;   

DOI  :  10.3354/dao02949

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Myxobolus honghuensis infects the pharynx of allogynogenetic gibel carp Carassius auratus gibelio (Bloch) and can cause high mortality. Only morphology-based diagnostic methods are currently available for clinical samples, but these methods are laborious and have low efficiency of detection. To overcome this problem, we designed a more sensitive diagnostic method. Two monoclonal antibodies (MAbs 1C7 and 3B7) were prepared by immunizing mice with soluble protein from sonicated M. honghuensis spores. Immunofluorescence analysis revealed that MAb 1C7 specifically reacts with polar filaments from spores, whereas MAb 3B7 identified protein localized on the spore valves. The isotypes of MAb 1C7 and MAb 3B7 were IgM and IgG1, respectively. Results of Western blot analysis revealed that MAb 1C7 recognized 2 prominent protein bands with molecular weights of 130 and 180 kDa, while MAb 3B7 recognized a protein band of 28 kDa. Thus, in this study we have developed 2 MAbs that have the potential for efficient detection of M. honghuensis. Moreover, identification of MAb 1C7 and MAb 3B7 allows for further studies of the functions and biochemical composition of polar filament and spore surface antigens.

【 授权许可】

Unknown