Tissue engineering of lung
First Claim
1. A method of making a decellularized tissue, comprising perfusing a natural tissue comprising a capillary network with a decellularization solution, wherein the natural tissue is isolated from a mammal, wherein the decellularization solution comprises a solution hypertonic to cells in the tissue, a zwitterionic detergent, and a chelating agent, and wherein the decellularization solution removes cellular material and retains collagen, capillary structure, and structural integrity of the matrix similar to the natural tissue, further comprising monitoring a perfusion pressure during the perfusing and adjusting the perfusion pressure to maintain a pressure of less than 30 mmHg.
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Abstract
The present invention relates to compositions comprising a decellularized tissue. The present invention also provides an engineered three dimensional lung tissue exhibiting characteristics of a natural lung tissue. The engineered tissue is useful for the study of lung developmental biology and pathology as well as drug discovery.
10 Citations
25 Claims
- 1. A method of making a decellularized tissue, comprising perfusing a natural tissue comprising a capillary network with a decellularization solution, wherein the natural tissue is isolated from a mammal, wherein the decellularization solution comprises a solution hypertonic to cells in the tissue, a zwitterionic detergent, and a chelating agent, and wherein the decellularization solution removes cellular material and retains collagen, capillary structure, and structural integrity of the matrix similar to the natural tissue, further comprising monitoring a perfusion pressure during the perfusing and adjusting the perfusion pressure to maintain a pressure of less than 30 mmHg.
- 20. A method of making a decellularized lung tissue, comprising perfusing a natural lung tissue with a decellularization solution at a pressure of 20 mmHg or less until substantially all of the cells and antigenic molecules are removed from the natural lung tissue, wherein the decellularization solution comprises a NaCl solution hypertonic to cells in the lung tissue, a zwitterionic detergent, and a chelating agent, and wherein the decellularized lung tissue comprises at least a lobe, an airway network, and a vascular network and retains collagen, capillary structure and structural integrity of the matrix similar to the natural lung tissue, and wherein the natural lung tissue is isolated from a mammal.
Specification