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The Advanced Optics Lab uses innovative optical tools, including laser-based nanotechnologies, to understand cell motility and the regulation of cell shape. We pioneered laser-based nanotechnologies, including optical tweezers, nanotracking, and laser-tracking microrheology. Applications range from physics, pharmaceutical delivery by phagocytosis (cell and tissue engineering), bacterial pathogens important in human disease and cell division.
Other projects in the lab are related to microscopy, specifically combining fluorescence and electron microscopy to view images of the subcellular structure around proteins.
Dr. Borahay's lab focuses on understanding pathobiology, developing novel treatments, and carrying out high quality clinical trials for common gynecologic problems with a special focus on uterine fibroids.
The mission of the Elisseeff Lab is to engineer technologies to repair lost tissues. We aim to bridge academic research and technology discovery to treat patients and address clinically relevant challenges related to tissue engineering. To accomplish this goal we are developing and enabling materials, studying biomaterial structure-function relationships and investigating mechanisms of tissue development to practically rebuild tissues. The general approach of tissue engineering is to place cells on a biomaterial scaffold that is designed to provide the appropriate signals to promote tissue development and ultimately restore normal tissue function in vivo. Understanding mechanisms of cellular interactions (both cell-cell and cell-material) and tissue development on scaffolds is critical to advancement of the field, particularly in applications employing stem cells. Translation of technologies to tissue-specific sites and diseased environments is key to better design, understanding, and... ultimately efficacy of tissue repair strategies. We desire to translate clinically practical strategies, in the form of biomaterials/medical devices, to guide and enhance the body's natural capacity for repair. To accomplish the interdisciplinary challenge of regenerative medicine research, we maintain a synergistic balance of basic and applied/translational research. view more
The Grayson Lab focuses on craniofacial and orthopaedic tissue engineering. Our research addresses the challenges associated with spatio-temporal control of stem cell fate in order to engineer complex tissue constructs. We are developing innovative methods to guide stem cell differentiation patterns and create patient-specific grafts with functional biological and mechanical characteristics. We employ engineering techniques to accurately control growth factor delivery to cells in biomaterial scaffolds as well as to design advanced bioreactors capable of maintaining cell viability in large tissue constructs. These technologies are used to enable precise control of the cellular microenvironment and uniquely address fundamental questions regarding the application of biophysical cues to regulate stem cell differentiation.
The Kunisaki lab is a R01-funded regenerative medicine group within the Division of General Pediatric Surgery at Johns Hopkins that works at the interface of stem cells, mechanobiology, and materials science. We seek to understand how biomaterials and mechanical forces affect developing tissues relevant to pediatric surgical disorders. To accomplish these aims, we take a developmental biology approach using induced pluripotent stem cells and other progenitor cell populations to understand the cellular and molecular mechanisms by which fetal organs develop in disease.
Our lab projects can be broadly divided into three major areas: 1) fetal spinal cord regeneration 2) fetal lung development 3) esophageal regeneration
Lab members: Juan Biancotti, PhD (lab manager); Lynn Zhou, PhD (postdoc), Shelby Sferra, MD, MPH (postdoc); Annalise Penikis, MD (postdoc)
Recent publications:
Kunisaki SM, Jiang G, Biancotti JC, Ho KKY, Dye BR, Liu AP, Spence JR. Human indu...ced pluripotent stem cell-derived lung organoids in an ex vivo model of congenital diaphragmatic hernia fetal lung. Stem Cells Translational Medicine 2021, PMID: 32949227
Biancotti JC, Walker KA, Jiang G, Di Bernardo J, Shea LD, Kunisaki SM. Hydrogel and neural progenitor cell delivery supports organotypic fetal spinal cord development in an ex vivo model of prenatal spina bifida repair. Journal of Tissue Engineering 2020, PMID: 32782773.
Kunisaki SM. Amniotic fluid stem cells for the treatment of surgical disorders in the fetus and neonate. Stem Cells Translational Medicine 2018, 7:767-773
view lessResearchers in the Laboratory for Fetal and Neonatal Organ Regeneration in the Department of Surgery at the Johns Hopkins School of Medicine are studying whether cellular reprogramming, stem cells, and ex vivo modeling can be applied to improve organ regeneration in pediatric surgical patients.
To execute these aims, the lab collaborates with developmental biologists and biomedical engineers throughout the country and employs cutting-edge molecular strategies and pre-clinical animal models.
Five to 35 percent of spine fusionprocedures fail, even when using the gold standard treatment of grafting bone from the patient's own iliac crest. Fusion failure, otherwise known as pseudoarthrosis, is a major cause of failed back surgery syndrome (FBSS) and results in significant pain and disability, increasing the need for additional procedures and driving up health care costs. The ultimate goal of the Spinal Fusion Laboratory is to eliminate pseudoarthrosis by using animal models to study various strategies for improving spinal fusion outcomes, including delivery of various growth factors and biological agents; stem cell therapies and tissue engineering approaches.
The Yarema Lab uses chemical biology, molecular and cell biology, and materials science methods to study and manipulate glycosylation. The goal of our research is to better understand human disease while furthering carbohydrate-based therapies. Our laboratory's research goals are to (1) Develop sugar analogs into viable and versatile drug candidates, (2) Apply metabolic glycoengineering to tissue engineering and stem cell research, (3) Use non-invasive magnetic stimuli to probe the effects of glycoengineering (and also to treat neurological disorders), and (4) Extend our sugar-based drug candidates into animal models and the clinic
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