Human Stem Cell Use: Embryonic Stem Cell
Embryonic stem cell-derived thymic epithelial cells
The function of the immune system throughout life is essential for protection from infections and cancer. T lymphocytes are white blood cells that choreograph the multiple responses that the body uses to control infection. T lymphocytes are produced in the thymus, a specialized organ located in the chest in front of the heart. The production […]
Self-renewal of human embryonic stem cells
Human embryonic stem (ES) cells are a remarkable cell type that are derived from a group of cells called the inner cell mass (ICM) of a very early stage embryo (about 100 cells in total) obtained from in vitro fertilization program. Human ES cells can be expanded in culture in an undifferentiated state (self-renewal) without […]
hESCs for Articular Cartilage Regeneration
Mobility is critical for human social interactions and quality of life. In the aged mobility is progressively impaired due to painful joints. The articular cartilage in the joints is damaged. The long-term goal of our research is the utilization of human embryonic stem cells (hESCs) for cartilage formation and therefore, regeneration of articular cartilage. Stem […]
Improving microenvironments to promote hematopoietic stem cell development from human embryonic stem cells
Hematopoietic stem cells (HSC) have been used successfully to cure various life-threatening blood diseases. Yet, matching HSCs are not available for every patient. Human embryonic stem cells (hESC) may provide an unlimited source of HSCs for therapeutic use. However, hESC derived hematopoietic cells do not develop properly in those culture conditions that are currently used, […]
In Vitro Differentiation of T cells from Human Embryonic Stem Cells.
White blood cells are the main players of human immunity in defense against infection. Defects in CD4 T white blood cells, for example, can lead to the devastating infections observed in AIDS patients and patients with a genetic immunodeficiency syndrome (“bubble boy” syndrome). A normal immune system can recognize and attack pathogens but not “self”. […]
Trophoblast differentiation of human ES cells.
Human embryonic stem (ES) cells have the potential to form any cell type, but ironically, the first cell lineage to form during development still represents a surprising challenge. The first cell type to become specialized is an epithelial cell that later defines the boundary between the embryo and mother for the formation of the placenta. […]
Gene regulatory mechanisms that control spinal neuron differentiation from hES cells.
More than 600 disorders afflict the nervous system. Common disorders such as stroke, epilepsy, Parkinson’s disease and autism are well-known. Many other neurological disorders are rare, known only to the patients and families affected, their doctors and scientists who look to rare disorders for clues to a general understanding of the brain as well as […]
Modeling Human Embryonic Development with Human Embryonic Stem Cells
Stem cells have entered the public consciousness as “cells that can do anything” and have been hailed as a panacea in the fight against disease, aging and cancer. Unfortunately, we have only scratched the surface in understanding these cells. Some of the things we think we know are that: embryonic stem cells hold great promise […]
Development of human ES cell lines as a model system for Alzheimer disease drug discovery
Alzheimer disease (AD) is a progressive neurodegenerative disorder that currently affects over 4.5 million Americans. By the middle of the century, the prevalence of AD in the USA is projected to almost quadruple. As current therapies do not abate the underlying disease process, it is very likely that AD will continue to be a clinical, […]
Cellular epigenetic diversity as a blueprint for defining the identity and functional potential of human embryonic stem cells
Human embryonic stem (ES) cells have the capacity to self-renew but also give rise to other cell types. How this capacity is regulated and what factors determine one fate over another is an active area of research. This is because by understanding the decision making process the a stem cell goes through, we might be […]