Lineage Commitment
Lineage Commitment - Related Videos
01:21
Lineage Commitment
0 Views •
2023
Commitment is the process whereby stem cells: lose their ability to form all cell types and irreversibly change into a specific type. The multipotent hematopoietic stem cells, (HSCs), differentiate into the multipotent hematopoietic progenitor cells, (HPCs). The HPCs express many lineage-specific cytokine receptors. Each of these receptors binds specific cytokines, activates distinct signaling pathways, and expresses a particular gene set. The HPCs further differentiate to form committed...
12:03
Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors
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Cited by 18 •
2012
A method to analyse the distribution of bone marrow hematopoietic progenitors in flow cytometry as well as to efficiently isolate highly purified hematopoietic stem cells (HSCs) is described. The isolation procedure is essentially based on magnetic enrichment of c-Kit+ cells and cell sorting to purify HSCs for cellular and molecular studies.
01:29
Commitment
0 Views •
2025
In game theory, a credible commitment in sequential games is a strategy where a player influences another's decision by making a believable and enforceable promise or threat. Sequential games differ from simultaneous games as players act after observing the decision of another player, allowing the first player to shape the expectations and actions of the second. For such a commitment to be credible, it must be realistic and enforceable, ensuring both sides see cooperation as the most beneficial...
07:21
Identification and Isolation of Oligopotent and Lineage-committed Myeloid Progenitors from Mouse Bone Marrow
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Cited by 12 •
2018
We demonstrate how to identify and isolate 6 subsets of myeloid progenitors from murine bone marrow using a combination of magnetic and fluorescence sorting (MACS and FACS). This protocol can be used for in vitro culture assays (methylcellulose or liquid cultures), in vivo adoptive transfer experiments, and RNA/protein analyses.
14:08
Blastomere Explants to Test for Cell Fate Commitment During Embryonic Development
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Cited by 15 •
2013
The fate of an individual embryonic cell can be influenced by inherited molecules and/or by signals from neighboring cells. Utilizing fate maps of the cleavage stage Xenopus embryo, single blastomeres can be identified for culture in isolation to assess the contributions of inherited molecules versus cell-cell interactions.
FAQs
Extracellular signals provide instructions that activate transcription factors associated with a particular lineage. These factors then influence gene-expression programs that favor one developmental direction while reducing support for alternatives. The response links the cell’s surrounding environment to its internal regulatory state, allowing developmental cues to guide the emergence of specialized tissues.
Lineage-specific transcription factors help establish the gene-expression patterns required for a developing cell to follow a particular fate. Their activation connects external developmental signals with internal cellular decisions. As these factors become associated with one lineage, they help reinforce that trajectory and contribute to the suppression of programs linked to alternative developmental outcomes.
Epigenetic programs help stabilize lineage-associated gene expression after developmental signals initiate a fate decision. This stabilization gives the emerging identity greater persistence while alternative fate programs are suppressed. In developmental biology, examining these programs helps explain how cells maintain a chosen trajectory and how altered regulation could interfere with normal tissue formation.
Researchers can study changing cell states to map developmental decisions and identify progenitors positioned between an earlier state and a more specialized fate. Attention to these transitional populations reveals when lineage-associated programs become established and when alternatives are reduced. This information helps reconstruct how tissues form rather than examining only their final mature cell types.
Understanding the signals, transcription factors, and epigenetic programs associated with a desired fate can guide strategies for directing stem cells toward specialized cell types. Such strategies use knowledge of developmental decision-making to support tissue-specific differentiation. The resulting cells can contribute to regenerative medicine research and provide models for investigating cell behavior in a controlled setting.
Lineage commitment provides a framework for examining how developmental decisions become disrupted and how those disruptions may contribute to developmental disorders. Researchers can also use commitment-based differentiation strategies to generate relevant cell types for disease modeling. These models help connect altered developmental programs with changes in specialized tissues and cellular function.