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Published on: November 21, 2025
Hypoxia, HIF, and Associated Signaling Networks in Chronic Kidney Disease
Jing Liu1,2, Qingqing Wei3, Chunyuan Guo4
1Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha 410011, China. jinliu@augusta.edu.
Abstract:
The pathogenesis of chronic kidney disease (CKD) is complex and apparently multifactorial. Hypoxia or decrease in oxygen supply in kidney tissues has been implicated in CKD. Hypoxia inducible factors (HIF) are a small family of transcription factors that are mainly responsive to hypoxia and mediate hypoxic response. HIF plays a critical role in renal fibrosis during CKD through the modulation of gene transcription, crosstalk with multiple signaling pathways, epithelial-mesenchymal transition, and epigenetic regulation. Moreover, HIF also contributes to the development of various pathological conditions associated with CKD, such as anemia, inflammation, aberrant angiogenesis, and vascular calcification. Treatments targeting HIF and related signaling pathways for CKD therapy are being developed with promising clinical benefits, especially for anemia. This review presents an updated analysis of hypoxia response, HIF, and their associated signaling network involved in the pathogenesis of CKD.
Insights
Hypoxia inducible factors (HIF) are crucial in chronic kidney disease (CKD) pathogenesis, driving fibrosis and associated complications like anemia. Targeting HIF pathways offers promising therapeutic strategies for CKD treatment.
Area of Science:
- Nephrology
- Molecular Biology
- Pathophysiology
Background:
- Chronic kidney disease (CKD) pathogenesis is complex and multifactorial.
- Kidney tissue hypoxia is a significant factor implicated in CKD progression.
- Hypoxia-inducible factors (HIF) mediate the cellular response to low oxygen levels.
Purpose of the Study:
- To review the role of hypoxia response and HIF in CKD pathogenesis.
- To analyze the signaling network associated with HIF in CKD.
- To discuss therapeutic strategies targeting HIF pathways for CKD.
Main Methods:
- Literature review of studies on hypoxia, HIF, and CKD.
- Analysis of HIF's role in renal fibrosis and CKD-related conditions.
- Examination of current and developing therapeutic interventions.
Main Results:
- HIF modulates gene transcription, signaling pathways, epithelial-mesenchymal transition, and epigenetic regulation in renal fibrosis.
- HIF contributes to CKD complications including anemia, inflammation, aberrant angiogenesis, and vascular calcification.
- Targeting HIF pathways shows promise for CKD therapy, particularly for anemia.
Conclusions:
- HIF signaling is a central player in CKD pathogenesis and associated pathologies.
- Therapeutic targeting of HIF pathways represents a promising avenue for CKD treatment.
- Further research into HIF-related networks can elucidate novel therapeutic targets.
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Acute Kidney Injury I: Introduction

