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Updated: Jul 24, 2025

Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue
Published on: March 23, 2015
Apoptosis-inducing factor: a mitochondrial protein associated with metabolic diseases-a narrative review
Liang Zong1,2, Zhou Liang3
1College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing, China.
Background And Objective:
Apoptosis-inducing factor (AIF), a flavin protein in mitochondria, is originally found to induce apoptosis under the stimulation of pro-apoptotic factors. As a mitochondrial flavin adenine dinucleotide-dependent oxidoreductase, AIF is involved in the regulation of mammalian cell metabolism by regulating respiratory enzyme activity, antioxidant stress, promoting mitochondrial autophagy and glucose uptake, etc. Herein, we focused on the research progress regarding the molecular mechanism of AIF in metabolic mediation and the recent research on AIF in metabolic diseases, as well as the AIF-mediated apoptotic process.
Methods:
Articles for this paper were obtained by reviewing the literature related to the role of AIF in metabolic diseases on PubMed. The search terms included the following: "apoptosis", "metabolism" or "metabolic diseases" plus "apoptosis-inducing factor". The titles, abstracts, and full texts of relevant English-language publications published from October 1996 to June 2022 were manually screened to clarify the role of AIF in metabolic diseases.
Key Content And Findings:
We found that AIF played an important role in a variety of metabolically-related diseases, such as diabetes, obesity, metabolic syndrome, and tumor metabolism, by mediating apoptosis.
Conclusions:
We summarized the important role of AIF in a variety of metabolic diseases, which might help to further expand the understanding of AIF and to develop AIF-related therapeutic targets.
Insights
Apoptosis-inducing factor (AIF) is crucial in regulating cell metabolism and mediating apoptosis in metabolic diseases like diabetes and obesity. Understanding AIF
Area of Science:
- Mitochondrial biology
- Cellular metabolism
- Molecular mechanisms of apoptosis
Background:
- Apoptosis-inducing factor (AIF) is a mitochondrial flavoprotein involved in apoptosis.
- AIF acts as a flavin adenine dinucleotide-dependent oxidoreductase, regulating cellular metabolism.
- Its roles extend to antioxidant stress, mitochondrial autophagy, and glucose uptake.
Purpose of the Study:
- To review the molecular mechanisms of AIF in metabolic regulation.
- To summarize recent research on AIF's role in metabolic diseases.
- To elucidate the AIF-mediated apoptotic process in metabolic contexts.
Main Methods:
- Literature review of AIF and metabolic diseases using PubMed.
- Search terms included "apoptosis", "metabolism", "metabolic diseases", and "apoptosis-inducing factor".
- Manual screening of English-language publications from October 1996 to June 2022.
Main Results:
- AIF plays a significant role in various metabolic diseases.
- Key diseases include diabetes, obesity, metabolic syndrome, and tumor metabolism.
- AIF mediates these effects through the induction of apoptosis.
Conclusions:
- AIF is a key mediator in a range of metabolic diseases.
- Further understanding of AIF's function can expand knowledge of metabolic regulation.
- AIF may represent a potential therapeutic target for metabolic disorders.
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