User profiles for Randolph Ashton

Randolph S. Ashton

Dept. of Biomedical Engineering, UW Madison & Wisconsin Institute for Discovery
Verified email at wisc.edu
Cited by 3016

The influence of hydrogel modulus on the proliferation and differentiation of encapsulated neural stem cells

A Banerjee, M Arha, S Choudhary, RS Ashton… - Biomaterials, 2009 - Elsevier
There has been an increasing interest in understanding how the mechanical properties of
the microenvironment influence stem cell fate. We describe studies of the proliferation and …

[HTML][HTML] Bioengineering the human spinal cord

NR Iyer, RS Ashton - Frontiers in Cell and Developmental Biology, 2022 - frontiersin.org
Three dimensional, self-assembled organoids that recapitulate key developmental and
organizational events during embryogenesis have proven transformative for the study of human …

A 3D culture model of innervated human skeletal muscle enables studies of the adult neuromuscular junction

…, E Pegoraro, H Ahn, H Ginsberg, M Zhen, RS Ashton… - Elife, 2019 - elifesciences.org
10.7554/eLife.44530.001 Two-dimensional (2D) human skeletal muscle fiber cultures are ill-equipped
to support the contractile properties of maturing muscle fibers. This limits their …

Defined human pluripotent stem cell culture enables highly efficient neuroepithelium derivation without small molecule inhibitors

ES Lippmann, MC Estevez-Silva, RS Ashton - Stem Cells, 2014 - academic.oup.com
The embryonic neuroepithelium gives rise to the entire central nervous system in vivo,
making it an important tissue for developmental studies and a prospective cell source for …

Bioengineering tissue morphogenesis and function in human neural organoids

NJ Fedorchak, N Iyer, RS Ashton - Seminars in cell & developmental …, 2021 - Elsevier
Over the last decade, scientists have begun to model CNS development, function, and
disease in vitro using human pluripotent stem cell (hPSC)-derived organoids. Using traditional …

The case for applying tissue engineering methodologies to instruct human organoid morphogenesis

CR Marti-Figueroa, RS Ashton - Acta biomaterialia, 2017 - Elsevier
Three-dimensional organoids derived from human pluripotent stem cell (hPSC) derivatives
have become widely used in vitro models for studying development and disease. Their ability …

Scaffolds based on degradable alginate hydrogels and poly (lactide-co-glycolide) microspheres for stem cell culture

RS Ashton, A Banerjee, S Punyani, DV Schaffer… - Biomaterials, 2007 - Elsevier
We describe a method for creating alginate hydrogels with adjustable degradation rates that
can be used as scaffolds for stem cells. Alginate hydrogels have been widely tested as three…

Astrocytes regulate adult hippocampal neurogenesis through ephrin-B signaling

RS Ashton, A Conway, C Pangarkar, J Bergen… - Nature …, 2012 - nature.com
Neurogenesis in the adult hippocampus involves activation of quiescent neural stem cells (NSCs)
to yield transiently amplifying NSCs, progenitors, and, ultimately, neurons that affect …

Fully Integrated 3D Microelectrode Arrays with Polydopamine-Mediated Silicon Dioxide Insulation for Electrophysiological Interrogation of a Novel 3D Human, Neural …

…, YY Li Sip, JF Orrico, A Kundu, RS Ashton… - … Applied Materials & …, 2023 - ACS Publications
Advances within in vitro biological system complexity have enabled new possibilities for the
“Organs-on-a-Chip” field. Microphysiological systems (MPS) as such incorporate …

[PDF][PDF] Deterministic HOX patterning in human pluripotent stem cell-derived neuroectoderm

…, MC Estevez-Silva, ER Chapman, JJ Coon, RS Ashton - Stem cell reports, 2015 - cell.com
Colinear HOX expression during hindbrain and spinal cord development diversifies and
assigns regional neural phenotypes to discrete rhombomeric and vertebral domains. Despite …