Project Objective: Tool/Resources/Bottleneck
Development of a Hydrogel Matrix for Stem Cell Growth and Neural Repair after Stroke
Stroke is the leading cause of adult disability. Most patients survive their initial stroke, but do not recover fully. Because of incomplete recovery, up to 1/3 of stroke patients are taken from independence to a nursing home or assisted living environment, and most are left with some disability in strength or control of the arms […]
Site-specific integration of Lmx1a, FoxA2, & Otx2 to optimize dopaminergic differentiation
The objective of this study is to develop a new, optimized technology to obtain a homogenous population of midbrain dopaminergic (mDA) neurons in a culture dish through neuronal differentiation. Dopaminergic neurons of the midbrain are the main source of dopamine in the mammalian central nervous system. Their loss is associated with one of the most […]
Development and Application of Versatile, Automated, Microfluidic Cell Culture System
Supported in part by a previous CIRM Tools and Technologies Grant [REDACTED], we have optimized and scaled up highly advanced (microfluidic) cell culture chips into manufacturable form, produced prototype instruments to drive these chips, and demonstrated that we can culture cells, dose them with combinations of reagents, and export them back off the chip. Since […]
Pluripotent and Somatic Stem Cell Models to Study Inherited Diarrheal Disorders
Our research group at [REDACTED] has had a long-standing interest in understanding the cause of several disorders that result in severe, and often times fatal forms of diarrhea in children. These diarrheal disorders are inherited, and somehow lead to poor absorption of nearly all forms of nutrients, including protein, sugars and fats. Why children with […]
Single Molecule Biophysics and Biology of Cellular Identity
One of your earliest childhood biology lessons probably occurred when your body demonstrated to you that your skin is an organ that is able to self-regenerate. Indeed wound healing is a fascinating process in which cells carry out a precise and complex choreography that includes cellular differentiation and regulation of gene expression. Our lab studies […]
Generation of functional cells and organs from iPSCs
The development of induced pluripotent stem cell (iPSC) technology may be the most important advance in stem cell biology for the future of medicine. This technology allows one to generate a patient’s own pluripotent stem cells (PSCs) from skin or blood cells. iPSCs can then be reprogrammed to multiply and produce high quality mature cells […]
Genetic Encoding Novel Amino Acids in Embryonic Stem Cells for Molecular Understanding of Differentiation to Dopamine Neurons
Embryonic stem cells have the capacity to self-renew and differentiate into other cell types. Understanding how this is regulated on the molecular level would enable us to manipulate the process and guide stem cells to generate specific types of cells for safe transplantation. However, complex networks of intracellular cofactors and external signals from the environment […]
Enhancing Survival of Embryonic Stem Cell-Derived Grafts by Induction of Immunological Tolerance
Although ESC-based therapies hold great promise for the cure of a wide diversity of degenerative diseases, rapid progress to actual human clinical trials is hindered by the lack of preclinical data for specific ESC-based therapies. I aim to move the process forward by establishing a protocol in which immune system cells are reproducibly produced from […]
Bioengineering technology for fast optical control of differentiation and function in stem cells and stem cell progeny
Embryonic stem (ES) cells potentially could provide clinically important replacement tissue for central nervous system (CNS) disease treatment, and regenerative medicine approaches involving ES cells have been suggested for common CNS disorders. But it has been difficult to produce the right kind of replacement tissues from ES cells because the “differentiation”, or cell-type specification process, […]
Addressing the Cell Purity and Identity Bottleneck Through Generation and Expansion of Clonal Human Embryonic Progenitor Cell Lines
Human embryonic stem (hES) cells and induced pluripotent (iPS) cells, such as reprogrammed skin cells, offer the potential to revolutionize medicine because they can replicate indefinitely and become virtually any cell in the body. They therefore have the potential to provide a limitless source of cells to replace cells lost to injury (spinal cord, skin […]