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Updated: Apr 24, 2026

Directed Differentiation of Primitive and Definitive Hematopoietic Progenitors from Human Pluripotent Stem Cells
Published on: November 1, 2017
Lymphocyte fate specification as a deterministic but highly plastic process
Steven L Reiner1, William C Adams1
1Department of Microbiology and Immunology, and the Department of Pediatrics at the College of Physicians and Surgeons, Columbia University, 701 West 168th Street, HHSC 912, New York, New York 10032, USA.
Insights
A single naive lymphocyte can generate diverse progeny for immune responses. This cellular diversity arises from fundamental developmental principles like asymmetric cell division, not just random processes.
Area of Science:
- Immunology
- Developmental Biology
- Cell Biology
Background:
- Activated lymphocytes produce diverse cellular descendants crucial for immune function.
- The mechanisms generating this progeny diversity are debated, with stochastic models proposed.
Approach:
- Investigate lymphocyte progeny diversification using principles from developmental and regenerative biology.
- Explore the role of asymmetric cell division in generating cellular diversity.
Key Points:
- A single activated lymphocyte can yield varied cellular descendants.
- Lymphocyte fate complexity in space and time can be explained by common cell diversification principles.
- Asymmetric cell division is a proposed mechanism contributing to lymphocyte progeny diversity.
Conclusions:
- The diversity of lymphocyte progeny can be explained by established developmental biology principles.
- Asymmetric cell division offers a non-stochastic mechanism for generating lymphocyte functional diversity.
Abstract:
The cellular progeny of a clonally selected lymphocyte must execute function. However, their function must often occur in more than one way, in more than one place and at more than one time. Experimental evidence supports the view that a single activated lymphocyte can produce a variety of cellular descendants. The mechanisms that are responsible for generating diversity among the progeny of a single lymphocyte remain a subject of lively controversy. Some groups have suggested stochastic mechanisms that are analogous to the diversification of the antigen receptor repertoire. We suggest that the complexity of lymphocyte fates in space and time can be derived from a single naive lymphocyte using the principles of cell diversification that are common in developmental and regenerative biology, including (but not limited to) asymmetric cell division.
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