3D surface topology guides stem cell adhesion and differentiation

P Viswanathan, MG Ondeck, S Chirasatitsin… - Biomaterials, 2015 - Elsevier
Polymerized high internal phase emulsion (polyHIPE) foams are extremely versatile materials
for investigating cell–substrate interactions in vitro. Foam morphologies can be controlled …

[HTML][HTML] A genome-wide screen identifies YAP/WBP2 interplay conferring growth advantage on human epidermal stem cells

…, A Mishra, SB Telerman, P Viswanathan… - Nature …, 2017 - nature.com
Individual human epidermal cells differ in their self-renewal ability. To uncover the molecular
basis for this heterogeneity, we performed genome-wide pooled RNA interference screens …

[HTML][HTML] Translational roadmap for the organs-on-a-chip industry toward broad adoption

V Allwardt, AJ Ainscough, P Viswanathan, SD Sherrod… - Bioengineering, 2020 - mdpi.com
Organs-on-a-Chip (OOAC) is a disruptive technology with widely recognized potential to
change the efficiency, effectiveness, and costs of the drug discovery process; to advance …

[HTML][HTML] Dermal Blimp1 acts downstream of epidermal TGFβ and Wnt/β-catenin to regulate hair follicle formation and growth

…, BM Lichtenberger, OJ Culley, P Viswanathan… - Journal of Investigative …, 2017 - Elsevier
B-lymphocyte-induced maturation protein 1 (Blimp1) is a transcriptional repressor that
regulates cell growth and differentiation in multiple tissues, including skin. Although in the …

[HTML][HTML] Scalable topographies to support proliferation and Oct4 expression by human induced pluripotent stem cells

A Reimer, A Vasilevich, F Hulshof, P Viswanathan… - Scientific reports, 2016 - nature.com
It is well established that topographical features modulate cell behaviour, including cell
morphology, proliferation and differentiation. To define the effects of topography on human …

3D surface functionalization of emulsion-templated polymeric foams

P Viswanathan, DW Johnson, C Hurley… - …, 2014 - ACS Publications
We describe the preparation of porous polymeric scaffolds via polymerization of the oil
phase in high internal phase water-in-oil-emulsions using amphiphilic block copolymers …

Mimicking the topography of the epidermal–dermal interface with elastomer substrates

P Viswanathan, M Guvendiren, W Chua… - Integrative …, 2016 - academic.oup.com
In human skin the interface between the epidermis and dermis is not flat, but undulates. The
dimensions of the undulations change as a function of age and disease. Epidermal stem cell …

Cell instructive microporous scaffolds through interface engineering

P Viswanathan, S Chirasatitsin… - Journal of the …, 2012 - ACS Publications
The design of novel biomaterials for regenerative medicine requires incorporation of well-defined
physical and chemical properties that mimic the native extracellular matrix (ECM). Here…

Controlling surface topology and functionality of electrospun fibers on the nanoscale using amphiphilic block copolymers to direct mesenchymal progenitor cell …

P Viswanathan, E Themistou, K Ngamkham… - …, 2015 - ACS Publications
Surface patterning in three dimensions is of great importance in biomaterials design for
controlling cell behavior. A facile one-step functionalization of biodegradable PDLLA fibers using …

A protein phosphatase network controls the temporal and spatial dynamics of differentiation commitment in human epidermis

…, AO Pisco, T Ly, K Liakath-Ali, G Walko, P Viswanathan… - Elife, 2017 - elifesciences.org
10.7554/eLife.27356.001 Epidermal homeostasis depends on a balance between stem cell
renewal and terminal differentiation. The transition between the two cell states, termed …