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Echinobase
ECB-ART-47974
Thymus 1991 Jun 01;174:253-6.
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Effect of hydrocortisone on the axial organ of the sea star Asterias rubens.

Leclerc M , Bajelan M .


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Sea stars Asterias rubens were inoculated daily with hydrocortisone. After 3 days a plaque of lysis was formed in the center of the axial organ and increased in size if the injections were continued for 2 more days. This result is reminiscent of the effect of cortisone on the thymus of vertebrates and supports the hypothesis that the axial organ is an ancestral lymphoid tissue.

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Genes referenced: LOC100887844