Helix Pomatia Receptors on Rat T Lymphocytes and Bone Marrow Cells

Abstract
Helix pomatia (HP) receptors are present on approximately 60 percent of neuraminidase (NANAase)-treated rat T lymphocytes. The HP+ spleen cells (SpC) can be separated from HP-, immunoglobulin-bearing (Ig+) cells by affinity chromatography. The HP+ SpC mediate the local graft-versus-host reaction (GVHR). Less than 1% of rat lymphocytes bear both HP and Ig markers. Approximately 25% of Lewis rat bone marrow cells are HP+ (only 1% are HP Ig+), suggesting that the HP receptor may be a differentiation marker.