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Restoration of T-cell function in nude mice by grafting the epitheliomesenchymal thymic rudiment from 10-day-old
The capacity of the uncolonized thymic epithelium to restore immune function in nude mice was demonstrated by grafting the 3rd branchial arch area taken from euthymic 10-day BALB/c embryos into syngeneic newborn nude mice. Twenty-six percent of the operated animals became immunocompetent. T-cell function was tested with skin grafts and the presence of high levels of Thy-1 positive cells plus a variety of in vitro culture assays: Con A stimulation of T lymphocytes, cytotoxicity and alloreactivity in MLR of the recipient toward allogeneic spleen cells. All these tests showed a pattern of response similar to normal euthymic BALB/c mice.
The capacity of the uncolonized thymic epithelium to restore immune function in nude mice was demonstrated by grafting the 3rd branchial arch area taken from euthymic 10-day BALB/c embryos into syngeneic newborn nude mice. Twenty-six percent of the operated animals became immunocompetent. T-cell function was tested with skin grafts and the presence of high levels of Thy-1 positive cells plus a variety of in vitro culture assays: Con A stimulation of T lymphocytes, cytotoxicity and alloreactivity in MLR of the recipient toward allogeneic spleen cells. All these tests showed a pattern of response similar to normal euthymic BALB/c mice.