Folate deficiency reduces the GPI-anchored folate-binding protein in rat renal tubules.
Folate deficiency reduces the GPI-anchored folate-binding protein in rat renal tubules.
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叶酸缺乏会降低大鼠肾小管中 GPI 锚定的叶酸结合蛋白。
DOI:
10.1152/ajpcell.2000.278.4.c812
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
Qian,L
中科院分区:
文献类型:
--
作者:
daCosta,M;Rothenberg,SP;Sadasivan,E;Regec,A;Qian,L
A folate-binding protein (FBP) anchored to cell membranes by a glycosyl phosphatidylinositol (GPI) adduct is constitutively expressed in some transformed and cultured cell lines. Its expression is upregulated when these cells are grown in medium containing low folate, but whether this occurs in vivo with nutritional folate deficiency is unknown. To address this question, the GPI-FBP in the liver, kidney, and brain of rats on control and folate-deficient (FD) diets was measured. The GPI-FBP in the kidney of FD rats decreased significantly in contrast to the upregulation of this protein in cultured cells. Northern blot analysis and nuclear run-on assays indicated that transcription of the GPI-FBP gene in the kidney was not reduced by folate deficiency. This decrease of the GPI-FBP appears to result from its proteolysis, similar to the enzymatic degradation of the apoprotein that occurs in vitro. Because the GPI-FBP is on the brush borders of the proximal renal tubules and provides for the reabsorption of folate, this function diminishes when the protein decreases in folate deficiency.
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影响因子:
2.9
作者:
Lee,HC;Shoda,R;Krall,JA;Foster,JD;Selhub,J;Rosenberry,TL
通讯作者:
Rosenberry,TL
DOI:
10.1042/bj2180075
发表时间:
1984
期刊:
The Biochemical journal
影响因子:
--
作者:
T. Green;H. Ford
通讯作者:
H. Ford
影响因子:
11.2
作者:
Henderson,GB;Suresh,MR;Vitols,KS;Huennekens,FM
通讯作者:
Huennekens,FM
影响因子:
4.2
作者:
CLIFFORD, AJ;WILSON, DS;BILLS, ND
通讯作者:
BILLS, ND
DOI:
10.1093/jn/126.1.242
发表时间:
1996
期刊:
The Journal of nutrition
影响因子:
--
作者:
Muldoon,RT;Ross,DM;McMartin,KE
通讯作者:
McMartin,KE