Mechanosensor YAP cooperates with TGF-β1 signaling to promote myofibroblast activation and matrix stiffening in a 3D model of human cardiac fibrosis

S Ragazzini, F Scocozza, G Bernava, F Auricchio… - Acta Biomaterialia, 2022 - Elsevier
Cardiac fibrosis is characterized by a maladaptive remodeling of the myocardium, which is
controlled by various inflammatory pathways and cytokines. This remodeling is …

Nonlinear Elastic Bottlebrush Polymer Hydrogels Modulate Actomyosin Mediated Protrusion Formation in Mesenchymal Stromal Cells

ML Ohnsorg, KM Mash, A Khang, VV Rao… - Advanced …, 2024 - Wiley Online Library
The nonlinear elasticity of many tissue‐specific extracellular matrices is difficult to
recapitulate without the use of fibrous architectures, which couple strain‐stiffening with …

A strategy to quantify myofibroblast activation on a continuous spectrum

A Hillsley, MS Santoso, SM Engels, KN Halwachs… - Scientific reports, 2022 - nature.com
Myofibroblasts are a highly secretory and contractile cell phenotype that are predominant in
wound healing and fibrotic disease. Traditionally, myofibroblasts are identified by the de …

[HTML][HTML] Functional differences in human aortic valve interstitial cells from patients with varying calcific aortic valve disease

R Tuscher, A Khang, TM West, C Camillo… - Frontiers in …, 2023 - frontiersin.org
Calcific aortic valve disease (CAVD) is characterized by progressive stiffening of aortic valve
(AV) tissues, inducing stenosis and insufficiency. Bicuspid aortic valve (BAV) is a common …

Matrix Metalloproteinase‐Responsive Controlled Release of Self‐Assembly Nanoparticles Accelerates Heart Valve Regeneration In Situ by Orchestrating …

X Chen, Y Wu, P Song, L Feng, Y Zhou, J Shi… - Advanced …, 2025 - Wiley Online Library
In situ tissue engineering heart valves (TEHVs) are the most promising way to overcome the
defects of existing valve prostheses. Despite their promising prospects, the clinical …

Estimation of aortic valve interstitial cell-induced 3D remodeling of poly (ethylene glycol) hydrogel environments using an inverse finite element approach

A Khang, J Steinman, R Tuscher, X Feng, MS Sacks - Acta Biomaterialia, 2023 - Elsevier
Aortic valve interstitial cells (AVICs) reside within the leaflet tissues of the aortic valve and
maintain and remodel its extracellular matrix components. Part of this process is a result of …

[HTML][HTML] The effects of strain history on aortic valve interstitial cell activation in a 3D hydrogel environment

TM West, DP Howsmon, MW Massidda, HN Vo… - APL …, 2023 - pubs.aip.org
Aortic valves (AVs) undergo unique stretch histories that include high rates and magnitudes.
While major differences in deformation patterns have been observed between normal and …

An Inverse Modeling Approach to Estimate Three-Dimensional Aortic Valve Interstitial Cell Stress Fiber Force Levels

A Khang, K Meyer, MS Sacks - Journal of …, 2023 - asmedigitalcollection.asme.org
Within the aortic valve (AV) leaflet exists a population of interstitial cells (AVICs) that
maintain the constituent tissues by extracellular matrix (ECM) secretion, degradation, and …

Mechanics of Cells and Fibers

D Dean, AS Nain, GM Genin - Acta Biomaterialia, 2023 - Elsevier
Although cells have likely interacted with extracellular protein fibers since when our single-
celled ancestors ruled the seas 600 million years ago [1], we modern and complex …

Understanding the fibroblast to myofibroblast activation process using dynamic hydrogels and machine learning

AV Hillsley - 2022 - repositories.lib.utexas.edu
Cardiac fibrosis is a pathological process characterized by excessive tissue deposition,
matrix remodeling, and tissue stiffening. On a cellular level, fibrosis is associated with …