The N1 domain of human lactoferrin is required for internalization by caco-2 cells and targeting to the nucleus.
The N1 domain of human lactoferrin is required for internalization by caco-2 cells and targeting to the nucleus.
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人乳铁蛋白的 N1 结构域是 caco-2 细胞内化并靶向细胞核所必需的。
DOI:
10.1021/bi8012164
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发表时间:
2008
期刊:
影响因子:
2.9
通讯作者:
Lönnerdal,Bo
中科院分区:
文献类型:
--
作者:
Suzuki,YasushiA;Wong,Henry;Ashida,Kin-Ya;Schryvers,AnthonyB;Lönnerdal,Bo
Human lactoferrin (hLf) has been shown to interact with cells from the Caco-2 human small intestinal cell line. There currently is little information about the molecular details of its interaction. As a first step toward detailed characterization of this interaction, we used a series of Lf chimeras to analyze which part of Lf is responsible for the interaction with Caco-2 cells. Recombinant chimeric proteins consisting of segments of hLf and bovine transferrin (bTf) were produced in a baculovirus−insect cell system and purified by a combination of cation exchange chromatography and immobilized bTf antibody affinity chromatography. Each chimera was labeled with a green fluorescent dye to monitor its interaction with Caco-2 cells. Similarly, the intestinal Lf receptor (LfR), also known as intelectin, was probed with an anti-LfR antibody that was detected with a secondary antibody conjugated with a red-color fluorescent dye. The results demonstrated that chimeric proteins containing the N-lobe or the N1.1 subdomain of Lf bound as well as intact Lf to Caco-2 cells. Confocal microscopy analysis revealed that these proteins, along with the LfR, were internalized and targeted to the nucleus. These results indicate that the N1.1 subdomain of hLf is sufficient for binding, internalization, and targeting to the nucleus of Caco-2 cells.
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影响因子:
--
作者:
Dominique Legrand;P. V. Berkel;Valérie Salmon;H. Veen;M. Slomianny;J. Nuijens;Geneviève Spik
通讯作者:
Geneviève Spik
影响因子:
20.3
作者:
J. Lash;T. Coates;J. Lafuze;R. Baehner;L. Boxer
通讯作者:
L. Boxer
DOI:
10.1016/s0021-9258(19)74219-7
发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
G. Ziere;M. Bijsterbosch;T J van Berkel
通讯作者:
T J van Berkel
DOI:
10.1042/bj2760733
发表时间:
1991
期刊:
The Biochemical journal
影响因子:
--
作者:
D. Legrand;J. Mazurier;P. Maes;E. Rochard;J. Montreuil;G. Spik
通讯作者:
G. Spik
DOI:
--
发表时间:
1985
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
J. Mazurier;Jean Montreuil;Geneviève Spik
通讯作者:
Geneviève Spik