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PAPP-A in cardiac and non-cardiac conditions
Yuehua Li1, Chenghui Zhou, Xianliang Zhou
1State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
Insights
Pregnancy-associated plasma protein-A (PAPP-A) is a biomarker for heart disease and aging. It plays a role in atherosclerosis and may be a target for anti-aging therapies, impacting lifespan.
Area of Science:
- Biochemistry
- Cardiology
- Gerontology
Background:
- Pregnancy-associated plasma protein-A (PAPP-A) is a protease in the insulin-like growth factor (IGF) axis.
- PAPP-A cleaves IGF binding proteins, releasing IGFs and influencing cellular processes.
- It has emerged as a significant biomarker in various medical conditions.
Purpose of the Study:
- To review the role of PAPP-A in cardiac and non-cardiac conditions.
- To highlight PAPP-A's potential as a diagnostic biomarker and therapeutic target.
- To explore PAPP-A's association with aging and disease progression.
Main Methods:
- Literature review of studies on PAPP-A.
- Analysis of PAPP-A's enzymatic function and biomarker utility.
- Examination of PAPP-A's role in atherosclerosis, aging, and disease.
Main Results:
- PAPP-A is crucial in progressive atherosclerosis and a biomarker for acute coronary syndrome.
- It predicts all-cause mortality and cardiovascular events.
- PAPP-A knockout mice exhibit extended lifespans, suggesting an anti-aging role.
- PAPP-A is also linked to malignant cancer and end-stage renal disease.
Conclusions:
- PAPP-A is a versatile biomarker with implications for cardiovascular health and aging.
- Its role as a protease and its association with diverse diseases warrant further investigation.
- PAPP-A presents a potential target for therapeutic interventions in aging and disease.
Abstract:
Pregnancy-associated plasma protein-A (PAPP-A), a newly discovered member of insulin like growth factors (IGFs) axis, has been reported to be a biomarker in both cardiac and non-cardiac conditions. PAPP-A mainly acts as a protease cleaving IGF inhibitors - IGF binding proteins (IGFBPs), thereby setting free IGFs. In cardiac conditions, PAPP-A plays an important role in progressive atherosclerosis. As a biomarker, PAPP-A is not only sensitive, specific and early for diagnosis of acute coronary syndrome, but also an independent risk factor for all-cause mortality or combined cardiovascular events. In non-cardiac conditions, PAPP-A is a new anti-aging target. PAPP-A knock out (KO) mice have a prolonged lifespan than the wild type. In addition, PAPP-A is also a biomarker associated with malignant cancer and end stage renal disease.
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