A RAPID AND SENSITIVE METHOD FOR DETECTING HUMAN CELLS IN XENOGENEIC HOSTS1

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Abstract

Xenografts, specifically transplantation of human cells into other species, are a valuable tool in preclinical transplantation experiments. A central issue is accurate identification of the grafted cells, particularly in cases in which cellular migration has occurred. We report that detection of grafted human cells can be achieved by in situ hybridization techniques using human centromeric probes which result in unambiguous nuclear labeling. The resulting reaction can be combined with immunocytochemical or histochemical techniques for cell-type characterization.

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