Premium
High expression of the fee gene product in murine testicular germ cells and erythroblasts
Author(s) -
KAZAMA AKIO,
Mano Hiroyukl,
Morishlta Yasuyuki,
Mori Shigeo
Publication year - 1996
Publication title -
pathology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
eISSN - 1440-1827
pISSN - 1320-5463
DOI - 10.1111/j.1440-1827.1996.tb03619.x
Subject(s) - biology , immunostaining , spleen , pathology , microbiology and biotechnology , immunohistochemistry , immunology , medicine
Tec is a novel non‐receptor‐type protein tyroslne kinase that was originally Identified from a murine liver cDNA library. While the function of Tec remains unknown, it was shown recently that two Tec‐related kinases are involved directly in the growth and differentiation of bone marrow stem cells. As the localization of Tec protein has not been reported yet, immunohlstochemical and immunochemlcal studies of various murine organs were conducted in the present study to clarify which cells express this kinase protein. An intense immunohistologic reaction was observed in neonatal and adult testicular germ cells, and neonatal and fetal hepatic erythroblasts. In addition, a clear immunostaining was noted in neonatal and adult tubal epithelial cells, hepatocytes, basal cells of the non‐glandular stomach, foveolar epithelium of the glandular stomach, sebaceous cells of the skin and fetal cartilage. The immune reaction of germ cells and erythroblasts was observed in the cell membrane, although this protein does not have a transmembrane domain. Supportive western blotting of testis, adult liver, spleen and heart of adult C.B‐17 mice with the use of anti‐Tec antibody demonstrated a heavy 70kDa band in the liver and testis, and a much weaker, small band in the heart and spleen. These results suggest that Tec protein has a specific role in testicular germ cells and erythroblasts.