Mitochondrial Dysfunction: An Emerging Link in the Pathophysiology of Cardiorenal Syndrome
Shuqing Shi1, Bingxuan Zhang1, Yumeng Li1
1Department of Internal Medicine, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
Insights
Mitochondrial dysfunction is central to cardiorenal syndrome (CRS), impacting both heart and kidney health. Targeting mitochondria may offer a novel therapeutic strategy to break the cycle of organ damage in CRS.
Area of Science:
- Cardiorenal Medicine
- Mitochondrial Biology
- Pathophysiology
Background:
- Cardiorenal syndrome (CRS) involves bidirectional crosstalk between the heart and kidneys, leading to mutual dysfunction.
- Mitochondria are crucial for cellular energy and stress response; dysfunction contributes to cell death and organ damage.
- Existing research links mitochondrial dysfunction to heart failure (HF) and chronic kidney disease (CKD).
Purpose of the Study:
- To review the role of mitochondrial dysfunction in the pathophysiology of heart failure and acute kidney injury/chronic kidney disease.
- To explore the hypothesis that mitochondrial dysfunction is a central mechanism in the development and progression of cardiorenal syndrome.
- To discuss evidence supporting mitochondrial dysfunction's involvement in various types of CRS.
Main Methods:
- Literature review of in vitro and animal studies.
- Analysis of pathophysiological pathways in heart failure and kidney disease.
- Synthesis of current research on mitochondrial dysfunction in cardiorenal syndrome.
Main Results:
- Mitochondrial dysfunction is implicated in the pathogenesis of heart failure and acute kidney injury/chronic kidney disease.
- Evidence suggests mitochondrial dysfunction plays a key role in the complex interplay of cardiorenal syndrome.
- Maintaining mitochondrial homeostasis is proposed as a potential therapeutic target.
Conclusions:
- Mitochondrial dysfunction is hypothesized to be a critical factor in the development and progression of cardiorenal syndrome.
- Targeting mitochondrial pathways may offer a promising strategy to interrupt the vicious cycle of organ damage in CRS.
- Further research into mitochondrial mechanisms in CRS is warranted.
Abstract:
The crosstalk between the heart and kidney is carried out through various bidirectional pathways. Cardiorenal syndrome (CRS) is a pathological condition in which acute or chronic dysfunction in the heart or kidneys induces acute or chronic dysfunction of the other organ. Complex hemodynamic factors and biochemical and hormonal pathways contribute to the development of CRS. In addition to playing a critical role in generating metabolic energy in eukaryotic cells and serving as signaling hubs during several vital processes, mitochondria rapidly sense and respond to a wide range of stress stimuli in the external environment. Impaired adaptive responses ultimately lead to mitochondrial dysfunction, inducing cell death and tissue damage. Subsequently, these changes result in organ failure and trigger a vicious cycle. In vitro and animal studies have identified an important role of mitochondrial dysfunction in heart failure (HF) and chronic kidney disease (CKD). Maintaining mitochondrial homeostasis may be a promising therapeutic strategy to interrupt the vicious cycle between HF and acute kidney injury (AKI)/CKD. In this review, we hypothesize that mitochondrial dysfunction may also play a central role in the development and progression of CRS. We first focus on the role of mitochondrial dysfunction in the pathophysiology of HF and AKI/CKD, then discuss the current research evidence supporting that mitochondrial dysfunction is involved in various types of CRS.
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