Expression of a Proto-oncogene (proto-myb) in Hemopoietic Tissues of Mice

Overview

Journal Mol Cell Biol

Specialty Cell Biology

Date 1984 Jul 1

PMID 6504046

Citations 45

Authors

D Sheiness

M Gardinier

Affiliations

Soon will be listed here.

Abstract

This study addressed the possibility that proto-myb (also called c-myb), the cellular homolog of a retroviral transforming gene, plays a role in hemopoiesis, particularly during maturation of T cells. By gel blot hybridization, we confirmed previous reports that proto-myb transcripts are found at much higher levels in thymic lymphocytes and cells of the erythroid lineage than in other tissue sources. Using dot blot hybridizations, we demonstrated further that similar levels of proto-myb expression are found in thymic lymphocytes taken from young mice with active thymuses and from old mice whose thymuses have undergone involution and that the extent of proto-myb expression decreases at least 10-fold as T cells progress from immature cortical thymocytes to the mature, resting T cells taken from lymph nodes. These results suggest that the protein product of proto-myb functions during T-cell differentiation.

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