Towards a safety assay device for iPSC-derived RPE in AMD therapy

C.F. Lewallen, Q. Wan, A. Maminishkis, K. Bharti, C.R. Forest, Towards a safety assay device for iPSC-derived RPE in AMD therapy, Georgia Optometric Association (GAOA), Atlanta, GA, November 17, 2020.

At-line functional characterization of iPSC-derived retinal pigment epithelium

C.F.  Lewallen, Q. Wan, A. Maminishkis, K. Bharti, C.R. Forest, At-line functional characterization of iPSC-derived retinal pigment epithelium, The Association for Research in Vision and Ophthalmology (ARVO), Baltimore, MD, May 3-7 2020.

High-yield, automated intracellular electrophysiology in retinal pigment epithelia

Colby F. Lewallen, Qin Wan, Arvydas Maminishkis, William Stoy, Ilya Kolb, Nathan Hotaling, Kapil Bharti, and Craig R. Forest, High-yield, automated intracellular electrophysiology in retinal pigment epithelia, Journal of Neuroscience Methods, Volume 328, 2019, 108442, ISSN 0165-0270, https://doi.org/10.1016/j.jneumeth.2019.108442.

Ussing Chamber Assembly (Section View) render v010

Epithelial Electrophysiology

Recent advancements utilizing induced pluripotent stem cell-derived (iPSC) epithelia have made disease modeling and cell therapy for many, previously untreatable diseases possible. However, current electrophysiology techniques – used to validate epithelial function – are painstaking and require a highly trained user; limiting experimental throughput. We are developing new techniques and devices that enable both high-throughput and high-quality electrophysiological measurements. Our lab has built a robot that automates intracellular electrophysiology of epithelia that automates the pipette insertion process and, simultaneously improves throughput. We are also exploring new electrochemical impedance spectroscopy (EIS)-based techniques to extract high resolution, membrane-specific properties non invasively. These techniques could be used as the basis for at-line functional characterization of epithelia in all future iPSC-based therapies.

Towards automated intracellular electrophysiology of retinal pigment epithelium

C.F. Lewallen, Q. Wan, A. Maminishkis, W. Stoy, I. Kolb, N. Hotaling, K. Bharti, C.R. Forest, Towards automated intracellular electrophysiology of retinal pigment epithelium, The Association for Research in Vision and Ophthalmology (ARVO), Vancouver, BC, Apr 28 – May 2, 2019.

Towards high-yield, automated electrophysiology of retinal pigment epithelium

C.F. Lewallen, Q. Wan, A. Maminishkis, W. Stoy, A. Felouzis, I. Kolb, N. Hotaling, K. Bharti, C.R. Forest, Towards high-yield, automated electrophysiology of retinal pigment epithelium, Georgia Optometric Association (GAOA), Atlanta, GA, April 16, 2019.