Therapeutic/Technology: Cell imaging & tracking
Multi-modal technology for non-destructive characterization of bioengineered tissues
Stem cell technologies hold great promise for engineering replacement tissues for repairing functional loss from trauma or disease. Such therapies are particularly important for replacing bone and cartilage in the aging population to maintain an active quality of life. However, the application of stem cells to generate individualized implantable grafts suffers from patient-to-patient variability that […]
Multimodal platform combining optical and ultrasonic technologies for in vivo nondestructive evaluation of engineered vascular tissue constructs
Current vascular replacement materials are far from ideal, with all available biomaterials exhibiting significant clinical complications. The development of novel biocompatible decellularized vascular grafts holds great promise for functional restoration of vascular tissues suffering from trauma or disease. However, the need for destructive analysis at multiple in-vitro and in-vivo time points creates a costly critical […]
Development of Single Cell MRI Technology using Genetically-Encoded Iron-Based Reporters
Clinical application of cell transplantation therapy requires a means of non-invasively monitoring these cells in the patient. Several imaging modalities, including MRI, bioluminescence imaging, and positron emission tomography have been used to track stem cells in vivo. For MR imaging, cells are pre-loaded with molecules or particles that substantially alter the image brightness; the most […]
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 […]
Molecular Imaging for Stem Cell Science and Clinical Application
Stem cells offer tremendous potential to treat previously intractable diseases. The clinical translation of these therapies, however, presents unique challenges. One challenge is the absence of robust methods to monitor cell location and fate after delivery to the body. The delivery and biological distribution of stem cells over time can be much less predictable compared […]
Understanding Chemotherapy-Induced Peripheral Neuropathy Mechanisms using CRISPRi and Chemical Screens in Human iPSC-Derived Sensory Neurons
Research Objective The research objectives are to identify causal genes for chemotherapy-induced mitochondrial toxicity and neurodegeneration in sensory neurons and drugs that target this toxicity. Impact These studies will open the possibility for genetic or drug targeting to prevent and treat drug-induced peripheral neuropathies and possibly neuropathies caused by disease or inherited. Major Proposed Activities […]
Bioengineering human stem cell-derived beta cell organoids to monitor cell health in real time and improve therapeutic outcomes in patients
Research Objective We will generate nanoprobe-containing stem cell-derived human beta cells that can be monitored in real time in response to inflammatory stress upon transplantation in patients with type 1 diabetes. Impact Our product will replace donor islets for cell replacement therapy in patients with type 1 diabetes, and will provide a readout of cell […]
Novel metabolic labeling method for tracking stem cells to irradiated salivary glands using PET
Research Objective This project aims to develop a sensitive and non-invasive method for tracking stem cells in clinical trial, without the need for genetically engineered reporters or long-lived radioisotopes. Impact The ability to see follow stem cells over time, as they engraft, will make it possible to predict response to stem cell therapy and understand […]