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Apolipoprotein A-II, a Player in Multiple Processes and Diseases
Gabriela Florea1, Irina Florina Tudorache1, Elena Valeria Fuior1
1Institute of Cellular Biology and Pathology "Nicolae Simionescu" of the Romanian Academy, 050568 Bucharest, Romania.
Biomedicines
|July 27, 2022
Summary
Apolipoprotein A-II (apoA-II), a key HDL protein, has complex roles in lipid metabolism and vascular disease. Its differing human and mouse forms and link to type 2 diabetes warrant further investigation.
Area of Science:
- Lipidology
- Molecular Biology
- Metabolic Diseases
Background:
- Apolipoprotein A-II (apoA-II) is a major component of high-density lipoprotein (HDL) particles.
- Human and mouse apoA-II exhibit distinct properties, influencing their biological roles.
- The precise role of apoA-II in vascular disease remains debated, with conflicting clinical findings.
Purpose of the Study:
- To review recent findings on apoA-II functions in physiological and pathological conditions.
- To explore apoA-II's involvement in cardiovascular disease, metabolic disorders, and cancer.
- To highlight the complex interplay between apoA-II, lipid metabolism, and diseases like type 2 diabetes.
Main Methods:
- Review of current scientific literature.
- Analysis of clinical and epidemiological studies.
- Synthesis of data on apoA-II's physiological and disease-related functions.
Main Results:
- Human apoA-II deficiency has minimal impact on lipoprotein levels.
- Increased human apoA-II is linked to hypertriglyceridemia, reduced HDL, and glucose intolerance.
- A feedback loop exists where hyperglycemia enhances apoA-II transcription, potentially leading to type 2 diabetes.
Conclusions:
- ApoA-II plays a significant role in human lipid metabolism and is implicated in the pathogenesis of type 2 diabetes.
- ApoA-II serves as a potential biomarker for various diseases, including pancreatic cancer.
- Further research is needed to elucidate the multifaceted roles of apoA-II in health and disease.
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