The lack of terminal tubule cells in the submandibular gland of mice deficient in submandibular gland protein C
The lack of terminal tubule cells in the submandibular gland of mice deficient in submandibular gland protein C
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颌下腺蛋白C缺陷小鼠颌下腺终末小管细胞缺失
DOI:
10.1007/s00441-020-03205-w
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发表时间:
2020
影响因子:
3.6
通讯作者:
Iseki S
中科院分区:
文献类型:
--
作者:
Nakata H;Terakawa J;Horike S;Daikoku T;Iseki S
The submandibular gland (SMG) of newborn mice has no mature acini but has the rudiments of acini called terminal tubules (TT). The TT are composed of TT cells with dark secretory granules and proacinar cells with lighter secretory granules, the latter being considered the immediate precursor of mature acinar cells. TT cells contain a specific secretory protein, submandibular gland protein C (SMGC) and they decrease in number postnatally at a higher rate in males than in females. In the present study, in order to clarify the biological roles of TT cells and their secretory product SMGC, we generated a knockout (KO) mouse strain deficient in SMGC. The KO mice of both sexes grew normally, had normal reproductive capacity and had normal acinar and duct systems in the SMG in adult ages. However, through the neonatal and early postnatal stages, the KO mice were deficient not only in the production of SMGC but also in TT cells. With electron microscopy of the SMG of newborn KO mice, TT cells with characteristic granules were absent and replaced by undifferentiated ductal cells, whereas proacinar cells were normal. These results suggested that the absence of SMGC inhibits the development of TT cells and that the absence of SMGC and TT cells has no notable influence on the postnatal development of the acinar and duct systems in the SMG.
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影响因子:
3.2
作者:
S. Yamashina;T. Barka
通讯作者:
T. Barka
DOI:
10.1007/bf00337607
发表时间:
2004
期刊:
Zeitschrift für Zellforschung und Mikroskopische Anatomie
影响因子:
--
作者:
M. Dvořák
通讯作者:
M. Dvořák
影响因子:
3.2
作者:
S. Yamashina;T. Barka
通讯作者:
T. Barka
影响因子:
2.7
作者:
Ball,WD;Hand,AR;Moreira,JE;Johnson,AO
通讯作者:
Johnson,AO
DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
Ball Wd;Redman Rs
通讯作者:
Redman Rs