Is There Enough Evidence to Support the Role of Glycosaminoglycans and Proteoglycans in Thoracic Aortic Aneurysm and Dissection?—A Systematic Review

Rai, Pratik, Robinson, Lucy, Davies, Hannah A, Akhtar, Riaz ORCID: 0000-0002-7963-6874, Field, Mark and Madine, Jillian ORCID: 0000-0001-9963-5871 (2022) Is There Enough Evidence to Support the Role of Glycosaminoglycans and Proteoglycans in Thoracic Aortic Aneurysm and Dissection?—A Systematic Review. International Journal of Molecular Sciences, 23 (16). p. 9200.

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Official URL: http://dx.doi.org/10.3390/ijms23169200

Abstract

<jats:p>Altered proteoglycan (PG) and glycosaminoglycan (GAG) distribution within the aortic wall has been implicated in thoracic aortic aneurysm and dissection (TAAD). This review was conducted to identify literature reporting the presence, distribution and role of PGs and GAGs in the normal aorta and differences associated with sporadic TAAD to address the question; is there enough evidence to establish the role of GAGs/PGs in TAAD? 75 studies were included, divided into normal aorta (n = 51) and TAAD (n = 24). There is contradictory data regarding changes in GAGs upon ageing; most studies reported an increase in GAG sub-types, often followed by a decrease upon further ageing. Fourteen studies reported changes in PG/GAG or associated degradation enzyme levels in TAAD, with most increased in disease tissue or serum. We conclude that despite being present at relatively low abundance in the aortic wall, PGs and GAGs play an important role in extracellular matrix maintenance, with differences observed upon ageing and in association with TAAD. However, there is currently insufficient information to establish a cause-effect relationship with an underlying mechanistic understanding of these changes requiring further investigation. Increased PG presence in serum associated with aortic disease highlights the future potential of these biomolecules as diagnostic or prognostic biomarkers.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	thoracic aortic aneurysm, thoracic aortic dissection, proteoglycans, glycosaminoglycans, biomechanics, aorta
Divisions:	Faculty of Science and Engineering > School of Engineering
Depositing User:	Symplectic Admin
Date Deposited:	30 Aug 2022 09:57
Last Modified:	18 Jan 2023 20:46
DOI:	10.3390/ijms23169200
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3162247