Polyamines in cultured rabbit corneal cells.
Polyamines in cultured rabbit corneal cells.
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培养的兔角膜细胞中的多胺。
DOI:
10.1167/iovs.02-0889
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发表时间:
2003
影响因子:
4.4
通讯作者:
Watsky,MitchellA
中科院分区:
文献类型:
--
作者:
Du,Haiming;Viar,MaryJane;Johnson,LeonardR;Watsky,MitchellA
purpose. To determine whether polyamines are present in corneal cells, whether corneal cell polyamines can be depleted by blocking the first rate-limiting enzyme in the polyamine synthesis pathway, ornithine decarboxylase (ODC), and whether polyamines are required for proliferation in all three corneal cell types.methods. Cultured corneal epithelial cells, keratocytes, and endothelial cells were exposed to the specific ODC blocker difluoromethylornithine (DFMO), and ODC activity, intracellular polyamine concentrations, and cell proliferation were measured.results. DFMO blocked ODC activity in a dose-and time-dependent manner in all three cell types. DFMO treatment completely depleted putrescine and spermidine by 2 days and also significantly depleted spermine. DFMO treatment also inhibited cell growth in all three cell types and this inhibition could be completely reversed by adding exogenous putrescine to the culture medium.conclusions. Polyamines are present in all cell types of the cornea, their formation is catalyzed at least in part by ODC, and they are an important component of corneal cell proliferation.
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影响因子:
4.4
作者:
W. Tao;G. Liou;X. Wu;T. O. Abney;P. Reinach
通讯作者:
W. Tao;G. Liou;X. Wu;T. O. Abney;P. Reinach
DOI:
10.1152/ajpcell.1998.274.1.c192
发表时间:
1998
期刊:
American journal of physiology. Cell physiology
影响因子:
--
作者:
S. McCormack;P. Blanner;B. Zimmerman;R. Ray;H. Poppleton;T. Patel;L. Johnson
通讯作者:
S. McCormack;P. Blanner;B. Zimmerman;R. Ray;H. Poppleton;T. Patel;L. Johnson
影响因子:
5.6
作者:
NISHIDA, T;NAKAMURA, M;OTORI, T
通讯作者:
OTORI, T
DOI:
10.1111/j.1748-1716.1989.tb08684.x
发表时间:
1989
期刊:
Acta physiologica Scandinavica
影响因子:
--
作者:
J. Ekström;B. Nilsson;E. Rosengren
通讯作者:
E. Rosengren
影响因子:
5.6
作者:
G. Haselbacher;R. Humbel
通讯作者:
R. Humbel