Summary
The origin of thymic lymphocytes was investigated, using a new reliable method to mark cells inXenopus. It was easily observed that extraneous cells immigrated into the thymic rudiment 4 days after fertilization and differentiated into a cell population identified as thymic lymphocytes in a fully developed thymus. Clearly, lymphoid precursor cells are of extrinsic origin.
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This work was supported in part by a grant from the Ministry of Education, Science and culture of Japan (No. 59770026).
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Kurihara, K., Kato, S. Immigration of lymphoid precursor cells into the thymic rudiment inXenopus. Experientia 42, 179–181 (1986). https://doi.org/10.1007/BF01952456
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DOI: https://doi.org/10.1007/BF01952456