Abstract:
:To assess the possible contribution of host immune responses to the exertion of Fv2-associated resistance to Friend virus (FV)-induced disease development, we inoculated C57BL/6 (B6) mice that lacked various subsets of lymphocytes with FV containing no lactate dehydrogenase-elevating virus. Fv2(r) B6 mice lacking CD4(+) T cells developed early polycythemia and fatal erythroleukemia, while B6 mice lacking CD8(+) T cells remained resistant. Erythroid progenitor cells infected with spleen focus-forming virus (SFFV) were eliminated, and no polycythemia was observed in B cell-deficient B6 mice, but they later developed myeloid leukemia associated with oligoclonal integration of ecotropic Friend murine leukemia virus. Additional depletion of natural killer and/or CD8(+) T cells from B cell-deficient B6 mice resulted in the expansion of SFFV proviruses and the development of polycythemia, indicating that SFFV-infected erythroid cells are not only restricted in their growth but are actively eliminated in Fv2(r) mice through cellular immune responses.
journal_name
J Viroljournal_title
Journal of virologyauthors
Tsuji-Kawahara S,Kawabata H,Matsukuma H,Kinoshita S,Chikaishi T,Sakamoto M,Kawasaki Y,Miyazawa Mdoi
10.1128/JVI.02506-13subject
Has Abstractpub_date
2013-12-01 00:00:00pages
13760-74issue
24eissn
0022-538Xissn
1098-5514pii
JVI.02506-13journal_volume
87pub_type
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