Mesenchyme cells degrade epithelial basal lamina glycosaminoglycan.
Mesenchyme cells degrade epithelial basal lamina glycosaminoglycan.
复制标题
间充质细胞降解上皮基底层糖胺聚糖。
DOI:
10.1016/0012-1606(82)90355-4
复制
发表时间:
1982
影响因子:
2.7
通讯作者:
Bernfield,M
中科院分区:
文献类型:
--
作者:
Smith,RL;Bernfield,M
We investigated whether turnover of basal lamina glycosaminoglycan (GAG), an active process during epithelial morphogenesis, involves the mesenchyme. Fixed, prelabeled, isolated mouse embryo submandibular epithelia were prepared retaining radioactive surface components, as determined by autoradiographic and enzymatic studies, and a basal lamina, as assessed by electron microscopy. Recombination of mouse embryo submandibular mesenchyme with these epithelia stimulates the release of epithelial radioactivity when the labeled precursor is glucosamine or glucose but not when it is amino acid. The release is linear with time during 150 min incubation. Augmented release of epithelial label requires living mesenchyme which must be close proximity with the epithelia. Although heterologous mesenchymes, including lung, trachea, and jaw, stimulate the release of submandibular epithelial label, epithelial tissues do not. The label released by intact submandibular mesenchyme from prelabeled epithelia is in GAG and in two unique fractions: heterogeneous materials of tetrasaccharide or smaller size andN-acetylglucosamine. Enzymatic treatment of the heterogeneous materials revealed the presence of glycosaminoglycan-derived oligosaccharides. These unique products were not obtained by incubating prelabeled epithelia with a mesenchymal cell extract, suggesting that intact mesenchymal cells are required.N-Acetylglucosamine was also released when mesenchyme was recombined with living prelabeled epithelia which contained labeled basal laminar GAG. Our results establish that submandibular epithelial basal lamina GAGs are degraded by submandibular mesenchyme. We propose that one mechanism of epithelial-mesenchymal interaction is the degradation of epithelial basal laminar GAG by mesenchyme.
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DOI:
10.1620/tjem.127.317
发表时间:
1979
期刊:
The Tohoku journal of experimental medicine
影响因子:
--
作者:
S. Hayashi;A. Kimura;K. Tsurumi
通讯作者:
K. Tsurumi
DOI:
10.1042/bj1790007
发表时间:
1979
期刊:
The Biochemical journal
影响因子:
--
作者:
B. Ingmar;Å. Wasteson
通讯作者:
Å. Wasteson
影响因子:
3.7
作者:
K. von Figura;B. Voss
通讯作者:
B. Voss
影响因子:
7.8
作者:
M. Bernfield;S. Banerjee;R. Cohn
通讯作者:
R. Cohn
DOI:
--
发表时间:
1974
期刊:
Journal of embryology and experimental morphology
影响因子:
--
作者:
K. Lawson
通讯作者:
K. Lawson