title: Potential role for anti-angiogenic therapy in abdominal aortic aneurysms.
abstract: OBJECTIVE
  Abdominal aortic aneurysm (AAA) is a condition that mainly affects elderly men. At present, there is no effective medical therapy that can retard aneurysm growth or prevent aneurysm rupture. There is evidence that angiogenesis within the wall of an aortic aneurysm may play key roles in aneurysm progression as well as rupture. The use of anti-angiogenic therapy as potential medical therapy in AAA is a promising strategy but has never been studied in detail.
  
  
  METHODS
  This paper discusses the basic mechanisms of angiogenesis, the role played by angiogenesis in aortic aneurysms and the potential therapeutic role of anti-angiogenic drugs against aneurysm expansion or rupture.
  
  
  RESULTS
  Angiogenesis is a multi-step process which is fundamental for growth and differentiation of various tissues within a multi-cellular organism. Hypoxia and inflammation are key stimuli for activation of neoangiogenesis. Investigations in both human tissues and animal models of AAA have shown that angiogenesis is a pathological hallmark of AAA and appears to play a role in the development and progression of the condition. Pre-clinical studies have shown that anti-angiogenic drugs can potentially be effective in reducing the intensity of aneurysm formation, suggesting that such drugs may potentially be useful as novel drug therapy for AAA in humans.
  
  
  CONCLUSIONS
  Current evidence suggests that angiogenesis contributes to the destructive processes within aneurysmal aortic wall. As novel drug therapy for aortic aneurysms (for use in humans) is still eluding researchers, anti-angiogenic pathway appears to be an attractive approach.
authors.affiliation: Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.
authors.forename: Badri
authors.initials: B
authors.lastname: Vijaynagar
authors.forename: Matt J
authors.initials: MJ
authors.lastname: Bown
authors.forename: Robert D
authors.initials: RD
authors.lastname: Sayers
authors.forename: Edward
authors.initials: E
authors.lastname: Choke
mesh_terms: D020533:Angiogenesis Inhibitors / Q000627:therapeutic use*; D000818:Animals; D017544:Aortic Aneurysm, Abdominal / Q000188:drug therapy*; D004195:Disease Models, Animal; D018450:Disease Progression; D006801:Humans
chemical_list: D020533:Angiogenesis Inhibitors