Immunology: T Cell development and differentiation скачать в хорошем качестве

Immunology: T Cell development and differentiation

The 1976 copyright act entitles fair use for non profit educational purposes and is extended under the DMCA, see title 17 section 107 of the us copyright code. my videos aren't monetized I do this for myself All T cells originate from haematopoietic stem cells in the bone marrow. Haematopoietic progenitors (lymphoid progenitor cells) from haematopoietic stem cells populate the thymus and expand by cell division to generate a large population of immature thymocytes.[11] The earliest thymocytes express neither CD4 nor CD8, and are therefore classed as double-negative (CD4−CD8−) cells. As they progress through their development, they become double-positive thymocytes (CD4+CD8+), and finally mature to single-positive (CD4+CD8− or CD4−CD8+) thymocytes that are then released from the thymus to peripheral tissues.