Human Stem Cell Use: Directly Reprogrammed Cell
Mechanisms of human induced neuronal cell reprogramming
We and other groups have recently shown that it is possible to convert skin cells from foreskin of newborns into nerve cells that closely resemble nerve cells of the brain in terms of both shape and functional properties. If it were possible to also reprogram human adult skin cells into similarly functional nerve cells, we […]
Human endothelial reprogramming for hematopoietic stem cell therapy.
The current roadblocks to hematopoietic stem cell (HSC) therapies include the rarity of matched donors for bone marrow transplant, engraftment failures, common shortages of donated blood, and the inability to expand HSCs ex vivo in large numbers. These major obstacles would cease to exist if an extensive, bankable, inexhaustible, and patient-matched supply of blood were […]
Mechanism and Utility of Direct Neuronal Conversion with a MicroRNA-Chromatin Switch
Many human diseases and injuries that affect the brain and nervous system could potentially be treated by either introducing healthy neurons or persuading the cells that normally provide supporting functions to become functioning neurons. A number of barriers must be traversed to bring these goals to practical therapies. Recently our laboratory and others have found […]
A new paradigm of lineage-specific reprogramming
Recently, we devised and reported a new regenerative medicine paradigm that entails temporal/transient overexpression of induced pluripotent stem cell based reprogramming factors in skin cells, leading to the rapid generation of “activated” cells, which can then be directed by specific growth factors and small molecules to “relax” back into various defined and homogenous tissue-specific precursor […]
Direct Cardiac Reprogramming for Heart Regeneration
Heart disease is a leading cause of mortality. The underlying pathology is typically loss of heart muscle cells that leads to heart failure. Because heart muscle has little or no regenerative capacity after birth, current therapeutic approaches are limited for the over 5 million Americans who suffer from heart failure. Our recent findings regarding direct […]
Generation of safe and therapeutically effective human induced hepatocyte-like cells
Although the liver can regenerate itself, chronic or overwhelming damage can cause life-threatening liver failure. Currently, the only therapy for liver failure is liver transplantation. Because the supply of cadaveric livers or liver tissue from living donors far exceeds the demand, physicians and researchers seek to develop new therapies to save the lives of patients […]
Direct reprogramming towards vascular progenitors for the treatment of ischemia
Angiogenesis or the generation of new blood vessels is a critical part of the normal healing process. Newly created vessels ensure the delivery of oxygen, nutrients, and specific repair signals to injured tissues. Indeed, even though additional repair mechanisms are required, such as replenishment of tissue-specific cell types, angiogenesis contributes to the healing of a […]
Molecular Characterization and Functional Exploration of Hemogenic Endothelium
Hematopoietic cells are responsible for generating all cell types present in the blood and therefore critical for the provision of oxygen and nutrients to all the tissues in the body. Blood cells are also required for defense against microorganisms and even for the recognition and elimination of tumor cells. Because blood cells have a relatively […]
Preclinical development of AAV vector-mediated in vivo hepatic reprogramming of myofibroblasts as a therapy for liver fibrosis
Research Objective An intravenously injectable virus that converts the scar cells responsible for liver cirrhosis into the cells that provide most of the liver’s function, thereby preventing or reversing liver failure. Impact The proposed research will develop a new therapy for liver cirrhosis, which can be cured by liver transplantation, but there are not enough […]
Direct Cardiac Reprogramming for Regenerative Medicine
Research Objective To develop a gene therapy product to deliver cardiac reprogramming factors into the heart for regeneration of new heart muscle. Impact The proposed candidate would regenerate heart muscle for the 23 million adult and pediatric patients with heart failure, for whom there are currently no disease-modifying therapeutic approaches. Major Proposed Activities Successful conversion […]