Document Detail

Changes in the histological organization and spheroid formation in lymphoid organ of Penaeus monodon infected with yellow head virus.
MedLine Citation:
PMID:  18796333     Owner:  NLM     Status:  MEDLINE    
The changes in the histological and three dimensional organizations of lymphoid organ and characteristics of lymphoid cells after chronic infection with yellow head virus (YHV) in Penaeus monodon were investigated. The vascular cast of infected lymphoid organ showed less branching and dramatically shortened terminal capillaries that formed the lymphoid tubules, and only large stumps of these lymphoid tubules remained. This might occur because the terminal ends of the tubules were damaged from YHV infection, as stromal cells and hemocytes in the LT wall were infected and formed foci that could give rise to lymphoid spheroids that broke away from the original lymphoid tubules. Histologically, there was a decrease of PAS-stained connective tissue materials in lymphoid spheroids as well as a decrease of stromal cells as marked by anti-vimentin antibody. This indicated that stromal cells together with type 1 fibers and associated extracellular matrix degenerated in lymphoid spheroids, while type 2 or reticular fibers proliferated and encapsulated the spheroids.
Pornsawan Duangsuwan; Yotsawan Tinikul; Charoonroj Chotwiwatthanakun; Rapeepun Vanichviriyakit; Prasert Sobhon
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-08-29
Journal Detail:
Title:  Fish & shellfish immunology     Volume:  25     ISSN:  1050-4648     ISO Abbreviation:  Fish Shellfish Immunol.     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-11-05     Completed Date:  2009-01-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9505220     Medline TA:  Fish Shellfish Immunol     Country:  England    
Other Details:
Languages:  eng     Pagination:  560-9     Citation Subset:  IM    
Department of Anatomy, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
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MeSH Terms
Lymphoid Tissue / ultrastructure*
Nidovirales Infections / immunology,  veterinary*
Penaeidae / immunology*,  virology

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