PMID- 9696877 OWN - NLM STAT- MEDLINE DCOM- 19980916 LR - 20200724 IS - 0022-538X (Print) IS - 1098-5514 (Electronic) IS - 0022-538X (Linking) VI - 72 IP - 9 DP - 1998 Sep TI - Preactivation of B lymphocytes does not enhance mouse mammary tumor virus infection. PG - 7688-91 AB - We investigated whether mouse mammary tumor virus (MMTV) favors preactivated or naive B cells as targets for efficient infection. We have demonstrated previously that MMTV activates B cells upon infection. Here, we show that polyclonal activation of B cells leads instead to lower infection levels and attenuated superantigen-specific T-cell responses in vivo. This indicates that naive small resting B cells are the major targets of MMTV infection and that the activation induced by MMTV is sufficient to allow efficient infection. FAU - Finke, D AU - Finke D AD - Ludwig Institute for Cancer Research, Lausanne Branch, University of Lausanne, 1066 Epalinges, Switzerland. FAU - Mortezavi, L AU - Mortezavi L FAU - Acha-Orbea, H AU - Acha-Orbea H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (DNA, Viral) SB - IM MH - Animals MH - B-Lymphocytes/drug effects/immunology/*virology MH - DNA, Viral MH - Lymphocyte Activation MH - Mammary Tumor Virus, Mouse/genetics/*physiology MH - Mice MH - Mice, Inbred BALB C PMC - PMC110044 EDAT- 1998/08/08 00:00 MHDA- 1998/08/08 00:01 CRDT- 1998/08/08 00:00 PHST- 1998/08/08 00:00 [pubmed] PHST- 1998/08/08 00:01 [medline] PHST- 1998/08/08 00:00 [entrez] AID - 2015 [pii] AID - 10.1128/JVI.72.9.7688-7691.1998 [doi] PST - ppublish SO - J Virol. 1998 Sep;72(9):7688-91. doi: 10.1128/JVI.72.9.7688-7691.1998.