Chimeric pancreas
AssigneeWashington University
InventorMarc R. Hammerman
Life of this patent
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Abstract
Novel methods, tissues and compositions for increasing the pancreatic mass of a mammalian recipient including harvesting immature pancreatic tissue from a mammalian donor and transplanting said tissue into the peritoneal cavity of a mammalian recipient under conditions that allow the pancreatic tissue to become vascularized and mature, thereby developing a functioning chimeric, endocrine pancreas that produces at least insulin in the recipient. The invention also includes mammalian immature pancreatic tissue adapted for transplantation into the peritoneal cavity of a mammalian recipient for increasing the pancreatic mass of the mammalian recipient as well as methods and compositions for treatment of the pancreatic tissue, recipient immunosuppression and recipient co-stimulatory blockade.
Claims20
A method for increasing the pancreatic mass of a mammalian recipient comprising harvesting immature pancreatic tissue from at least one mammalian donor and implanting said tissue into the peritoneal cavity of a mammalian recipient under conditions that allow the pancreatic tissue to become vascularized and mature, thereby developing a functioning chimeric, endocrine pancreas that produces at least insulin in the recipient.
Mammalian immature pancreatic tissue adapted for transplantation into the peritoneal cavity of a mammalian recipient for increasing the pancreatic mass of the mammalian recipient, said tissue comprising at least one non-digested, non-disassociated portion of at least one substantially non-vascularized pancreas anlage at least substantially free of antigen presenting cells.
Method for treating diabetes in a mammalian recipient in need of such treatment comprising harvesting immature pancreatic tissue from at least one mammalian donor and implanting said tissue into the peritoneal cavity of a mammalian recipient under conditions that allow the pancreatic tissue to become vascularized and mature, thereby developing a functioning chimeric, endocrine pancreas that produces at least insulin in the recipient.
Dependencies are inferred from the claim text.