In Article <34tjd6$755 at jhunix1.hcf.jhu.edu>, ejf at welchlink.welch.jhu.edu
(Ephraim Fuchs) wrote:
>I do not believe in immunosurveillance because tumors arise from cell
>types that cannot provide a costimulatory signal for naive T cell
>activation.
What about B-cell lymphomas and melanomas (which express B7, see P. Hersey
et al in latest Intl. J. Cancer)???
