Mechanical, Cellular and Molecular Mechanisms on Heart Valve Disease

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (20 February 2022) | Viewed by 2221

Special Issue Editors


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Guest Editor
Department of Cardiology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
Interests: calcific aortic valve disease; mitral valve disease; ex vivo flow models; hemodynamics

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Guest Editor
Center for Interdisciplinary Cardiovascular Sciences, Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
Interests: bioprinting; mechanobiology; 3D printing; aortic valve; calcification; microdissection; calcific aortic valve disease

Special Issue Information

Dear Colleagues,

Heart valve disease affects about 2.5% of the population, with increasing prevalence at older age. No pharmacological treatment exists as of yet, and surgical repair or replacement is the only therapeutic option. Although our understanding of the molecular and cellular mechanisms involved in heart valve disease has greatly expanded in recent years, the complexity of the valvular structure and dynamics and the multifactorial nature of heart valve disease have hampered the development of nonsurgical treatments. The cardiac valves consist of a heterogeneous cell population which resides in a highly organized extracellular matrix. The positioning of the valves in the heart and their specific configuration exposes each part of the leaflet to unique mechanical stresses during the cardiac cycle. Insight into the interaction between the valvular cells, extracellular matrix, and its mechanical environment is crucial for the understanding of the pathophysiology of heart valve disease.

In this Special Issue, we welcome original research papers and review articles on the mechanical, cellular, and molecular mechanisms involved in heart valve disease with an emphasis on the interactions between valvular cells and their environment, new model systems, and new targets for pharmacological therapies.

Dr. Boudewijn Kruithof
Prof. Dr. Elena Aikawa
Guest Editors

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Keywords

  • heart valve disease
  • aortic valve
  • mitral valve
  • calcific aortic valve disease
  • mitral valve prolapse
  • valvular interstitial cells
  • mechanical environment
  • hemodynamics
  • myxomatous valves

Published Papers (1 paper)

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Research

25 pages, 32942 KiB  
Article
A Coupled Multiscale Approach to Modeling Aortic Valve Mechanics in Health and Disease
by Ahmed A. Bakhaty, Sanjay Govindjee and Mohammad R. K. Mofrad
Appl. Sci. 2021, 11(18), 8332; https://doi.org/10.3390/app11188332 - 8 Sep 2021
Cited by 3 | Viewed by 1633
Abstract
Mechano-biological processes in the aortic valve span multiple length scales ranging from the molecular and cell to tissue and organ levels. The valvular interstitial cells residing within the valve cusps sense and actively respond to leaflet tissue deformations caused by the valve opening [...] Read more.
Mechano-biological processes in the aortic valve span multiple length scales ranging from the molecular and cell to tissue and organ levels. The valvular interstitial cells residing within the valve cusps sense and actively respond to leaflet tissue deformations caused by the valve opening and closing during the cardiac cycle. Abnormalities in these biomechanical processes are believed to impact the matrix-maintenance function of the valvular interstitial cells, thereby initiating valvular disease processes such as calcific aortic stenosis. Understanding the mechanical behavior of valvular interstitial cells in maintaining tissue homeostasis in response to leaflet tissue deformation is therefore key to understanding the function of the aortic valve in health and disease. In this study, we applied a multiscale computational homogenization technique (also known as “FE2”) to aortic valve leaflet tissue to study the three-dimensional mechanical behavior of the valvular interstitial cells in response to organ-scale mechanical loading. We further considered calcific aortic stenosis with the aim of understanding the likely relationship between the valvular interstitial cell deformations and calcification. We find that the presence of calcified nodules leads to an increased strain profile that drives further growth of calcification. Full article
(This article belongs to the Special Issue Mechanical, Cellular and Molecular Mechanisms on Heart Valve Disease)
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