title: MLR-like reaction between axial organ cells from asterids.
abstract: The uptake of [3H]thymidine by axial organ (AO) cells arising from two starfishes and mixed together, in a ratio of 50/50 was studied. Mixed leucocyte reaction (MLR) combinations gave a positive response at the fifth day of culture in about 20% of the tested combination (index: 1.8-6.7). No positive reaction was observed in an allogeneic system. More significant results seem to be obtained with the nonadherent nylon-wool subpopulation cells from the two species, rather than with the whole axial organ cells.
mesh_terms: D000818:Animals; D002458:Cell Fractionation; D007959:Lymphocyte Culture Test, Mixed; D013045:Species Specificity; D013215:Starfish / Q000166:cytology / Q000276:immunology*