Abdominal aortic aneurysm: novel mechanisms and therapies

Frank M Davis1, Debra L Rateri, Alan Daugherty

  • 1aSection of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan bSaha Cardiovascular Research Center cDepartment of Physiology, University of Kentucky, Lexington, Kentucky, USA.

Abstract

Insights

Abdominal aortic aneurysm (AAA) is a dangerous dilation of the aorta. Recent research highlights genetic factors and inflammatory pathways involved in AAA development, paving the way for new drug therapies.

Area of Science:

  • Cardiovascular Research
  • Genetics and Molecular Biology
  • Pharmacology

Background:

  • Abdominal aortic aneurysm (AAA) is characterized by permanent aortic dilation, posing a risk of fatal rupture.
  • Understanding the underlying mechanisms of AAA pathogenesis is crucial for developing effective treatments.

Purpose of the Study:

  • To review recent advances in understanding AAA pathogenesis.
  • To highlight emerging pharmacologic therapies for AAA.

Main Methods:

  • Review of current human studies and animal models.
  • Analysis of genetic factors and inflammatory mediators implicated in AAA.
  • Examination of preclinical investigations into microRNA-based therapies.

Main Results:

  • Genetic loci such as 3p12.3, DAB2IP, LDLr, LRP1, MMP-3, TGFBR2, and SORT1 are associated with AAA development.
  • Leukocytes and inflammatory mediators (IL-1, IL-17, TGF-β, angiotensin II) play key roles in AAA pathogenesis.
  • MicroRNAs show potential in regulating pathological pathways relevant to AAA.

Conclusions:

  • Recent studies have elucidated numerous potential mechanisms driving AAA pathogenesis.
  • These findings offer promising insights for the development of novel medical treatments for AAA.
  • Ongoing clinical trials aim to translate preclinical discoveries into therapeutic strategies.

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