Methods and compositions for enhanced differentiation from embryonic stem cells
First Claim
1. A method for enhancing mesoderm differentiation from pluripotent stem cells comprisingculturing pluripotent stem cells at a cell surface oxygen partial pressure that is less than 142 mmHg throughout a time period sufficient to induce mesoderm specific gene expression, wherein the cell surface oxygen partial pressure is about gas phase oxygen partial pressure,wherein the pluripotent stem cells are mouse or human pluripotent stem cells,wherein the pluripotent stem cells are cultured on a silicone rubber membrane.
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Abstract
The invention provides methods for differentiating pluripotent stem cells such as ES cells with improved progenitor and differentiated cell yield using low oxygen conditions and optionally in the absence of exogenously added differentiation factors.
18 Citations
14 Claims
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1. A method for enhancing mesoderm differentiation from pluripotent stem cells comprising
culturing pluripotent stem cells at a cell surface oxygen partial pressure that is less than 142 mmHg throughout a time period sufficient to induce mesoderm specific gene expression, wherein the cell surface oxygen partial pressure is about gas phase oxygen partial pressure, wherein the pluripotent stem cells are mouse or human pluripotent stem cells, wherein the pluripotent stem cells are cultured on a silicone rubber membrane.
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13. A method for producing or enriching cardiomyocytes comprising
performing a first culture step comprising culturing ES cells at a first cell surface oxygen partial pressure that is about 36 mmHg for a first time period of 6 days, performing a second culture step comprising culturing the ES cells at a second cell surface oxygen partial pressure that is 142 mmHg for a second time period that is about 15 days, wherein cell surface oxygen partial pressure is about gas phase partial pressure in the first and second culture steps, wherein the ES cells are mouse or human ES cells.
Specification