The United States of America as Represented by the Department of Health

Jack H Lichy

Peter M Howley

A gene which is associated with tumor suppression and is localized on chromosome 11 has now been identified. The identification, localization and sequence of a gene which demonstrates differential expression in a manner that correlates with tumorigenicity suggests that this gene could potentially be used for gene therapy in cancers deleted or altered in their expression of the gene. Furthermore, a gene which is localized on chromosome 11p15, with identified polymorphisms, could be used for analysis of tumor DNA for loss of heterozygosity at chromosome 11p15. This region of chromosome 11 shows frequent loss of heterozygosity (LOH) in many human malignancies. Thus, the determination of LOH at chromosome 11p15 may be useful in predicting the prognosis of that tumor.

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Silver Spring, MD, United States of America

Jack H Lichy