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Full-Text Articles in Medicine and Health Sciences
Maturation Of Human Induced Pluripotent Stem Cell Derived Engineered Cardiac Tissues Using Chief Transfection And Chronic Optical Pacing., Marc M. Dwenger
Maturation Of Human Induced Pluripotent Stem Cell Derived Engineered Cardiac Tissues Using Chief Transfection And Chronic Optical Pacing., Marc M. Dwenger
Electronic Theses and Dissertations
The immaturity of engineered cardiac tissues (ECTs) limits their ability to regenerate damaged myocardium and to serve as in vitro disease models and surrogates for drug toxicity testing. Several chronic biomimetic conditioning protocols, including mechanical stretch, perfusion, and electrical stimulation promote ECT maturation but have significant technical limitations. Non-contacting chronic light stimulation using heterologously expressed light-sensitive ChIEF ion channels, termed optogenetics, may be an advantageous alternative to chronic electrical stimulation. As a proof of principle, we transfected ECTs using an AAV packaged ChIEF and then verified acute optical pacing (OP) by patch clamp. We then chronically OP ECTs for 7 …
Tissue Engineered Micro And Macrovasculature Utilizing Stromal Vascular Fraction., Joseph Samir Zakhari
Tissue Engineered Micro And Macrovasculature Utilizing Stromal Vascular Fraction., Joseph Samir Zakhari
Electronic Theses and Dissertations
This dissertation describes the use of stromal vascular fraction to tissue engineer 3D microvasculature and macrovasculature. Stromal vascular fraction is an easily isolatable cell source from adipose tissue depots. It has demonstrated remarkable potential both in vitro and in vivo for forming microcirculation capable of perfusion upon implantation. SVF is clinically utilized as a therapeutic cell source for anti-inflammation for osteoarthritis and is being studied for ischemic tissue application to stimulate revascularization. The work described herein is divided within four chapters. Chapter I provides an introductory overview and lists the aims and hypothesis for the dissertation. Chapter II describes experiments …