Distal and proximal hypoxia response elements cooperate to regulate organ-specific erythropoietin gene expression.
Distal and proximal hypoxia response elements cooperate to regulate organ-specific erythropoietin gene expression.
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DOI:
10.3324/haematol.2019.236406
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发表时间:
2020-12-01
期刊:
影响因子:
10.1
通讯作者:
Wenger RH
中科院分区:
文献类型:
--
作者:
Orlando IMC;Lafleur VN;Storti F;Spielmann P;Crowther L;Santambrogio S;Schödel J;Hoogewijs D;Mole DR;Wenger RH
While it has been well-established that distal hypoxia response elements (HRE) regulate hypoxia-inducible factor (HIF) target genes such as erythropoietin (Epo), an interplay between multiple distal and proximal (promoter) HRE has not yet been described. Hepatic Epo expression is regulated by an HRE located downstream of the EPOgene, but this 3' HRE is not essential for renal EPO gene expression. We previously identified a 5' HRE and could show that both HRE direct exogenous reporter gene expression. Here, we show that, whereas in hepatic cells the 3' but not the 5' HRE is required, in neuronal cells both the 5' and 3' HRE contribute to endogenous Epo induction. Moreover, two novel putative HRE were identified in the EPO promoter. In hepatoma cells, HIF interacted mainly with the distal 3' HRE, but in neuronal cells, HIF most strongly bound the promoter, bound to a lesser extent the 3' HRE, and did not bind the 5' HRE. Interestingly, mutation of either of the two distal HRE abrogated HIF binding to the 3' and promoter HRE. These results suggest that a canonical functional HRE can recruit multiple transcription factors (not necessarily HIF) to mediate HIF binding to different distant HRE in an organ-specific manner.
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影响因子:
16.6
作者:
Grampp, Steffen;Platt, James L.;Lauer, Victoria;Salama, Rafik;Kranz, Franziska;Neumann, Viviana K.;Wach, Sven;Stoehr, Christine;Hartmann, Arndt;Eckardt, Kai-Uwe;Ratcliffe, Peter J.;Mole, David R.;Schoedel, Johannes
通讯作者:
Schoedel, Johannes
影响因子:
7.7
作者:
Platt JL;Salama R;Smythies J;Choudhry H;Davies JO;Hughes JR;Ratcliffe PJ;Mole DR
通讯作者:
Mole DR
影响因子:
5.3
作者:
BLANCHARD, KL;ACQUAVIVA, AM;BUNN, HF
通讯作者:
BUNN, HF
影响因子:
20.3
作者:
Magnanti, M;Gandini, O;Gassmann, M
通讯作者:
Gassmann, M
DOI:
10.1073/pnas.88.13.5680
发表时间:
1991-07-01
影响因子:
11.1
作者:
SEMENZA, GL;NEJFELT, MK;ANTONARAKIS, SE
通讯作者:
ANTONARAKIS, SE