RGD Reference Report - Erythropoietin pretreatment ameliorates renal ischaemia-reperfusion injury by activating PI3K/Akt signalling. - Rat Genome Database

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Erythropoietin pretreatment ameliorates renal ischaemia-reperfusion injury by activating PI3K/Akt signalling.

Authors: Zhang, J  Zou, YR  Zhong, X  Deng, HD  Pu, L  Peng, K  Wang, L 
Citation: Zhang J, etal., Nephrology (Carlton). 2015 Apr;20(4):266-72. doi: 10.1111/nep.12384.
RGD ID: 11041698
Pubmed: PMID:25581532   (View Abstract at PubMed)
DOI: DOI:10.1111/nep.12384   (Journal Full-text)

AIM: Renal ischaemia-reperfusion (I/R) injury, a primary cause of acute renal failure, can induce high morbidity and mortality. This study aimed to explore the effect of erythropoietin on renal I/R injury and its underlying mechanism. METHODS: Fifty male Sprague-Dawley rats were randomly allocated to three groups (n = 10): the sham group, the renal ischaemia-reperfusion-saline (IRI) group, and the IRI+-Erythropoietin (EPO) group. Erythropoietin (250, 500, 1000 U/kg) was intraperitoneally injected 30 min before inducing I/R. Renal I/R injury were induced by clamping the left renal artery for 30 min followed by reperfusion, along with a contralateral nephrectomy. Renal function and histological damage were determined after 24 h reperfusion. The expression of pro-inflammatory cytokines interleukin-6 (IL-6), interleukin-1 beta (IL-1beta), and tumour necrosis factor-alpha (TNF-alpha) in the serum and renal tissue were evaluated by enzyme linked immunosorbent assay (ELISA) and reverse transcription-polymerase chain reaction (RT-PCR), respectively. Further, the effects of erythropoietin on PI3K/Akt signalling, erythropoietin receptor (EPOR) and nuclear factor (NF)-kappaB activation were measured by Western blotting. RESULTS: Erythropoietin pretreatment can significantly decrease the level of renal dysfunction in a dose-dependent manner, attenuated the renal histological changes, the expression of TNF-alpha, IL-1beta, and IL-6, the levels of reactive oxygen species (ROS) production and NF-kappaB p65 phosphorylation in renal tissue upon IRI. Moreover, erythropoietin pretreatment could further activate the PI3K/Akt signalling and induced EPOR activity. CONCLUSIONS: Erythropoietin pretreatment could attenuate renal I/R injury by suppressing inflammation, which was associated with activating PI3K/Akt signalling though EPOR activation. Our findings suggest that erythropoietin may be a novel practical strategy to prevent renal I/R injury.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Kidney Reperfusion Injury treatmentIDA 11041698 RGD 
Kidney Reperfusion Injury treatmentISOEPO (Homo sapiens)11041698; 11041698 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Epo  (erythropoietin)

Genes (Mus musculus)
Epo  (erythropoietin)

Genes (Homo sapiens)
EPO  (erythropoietin)


Additional Information