(FromtheMclndoeMemorialResearchUnit,EastGrin~tead.PDFVIP

Published June 1, 1967 PRIMARY IMMUNE RESPONSE IN GRAFTED CELLS DISSOCIATION BETWEEN THE PROLIFERATION OF A c r i v r r y AND THE PROLI~EKATION OF CELLS $ BY NORMAN W. NISBET,$ F.R.C.S., Am) MORTEN SIMONSEN, M.D. (From the Mclndoe Memorial Research Unit,East Grin~tead,Sussex, England) (Received for publication 18 January 1967) Although chicken embryos are in many ways ideal for work on the immunological D graft versus host (GVH) reaction, no real use has been made until very recently (1, o w 2) of the analytical tool offered by the fact that dividing donor and host chicken cells n l may be distinguished by their sex chromosomes. o a The latter fact was demonstrated in a rather preliminary communication by Biggs d