Video Experimental Relacionado
Updated: Aug 14, 2026

07:21
Identification and Isolation of Oligopotent and Lineage-committed Myeloid Progenitors from Mouse Bone Marrow
Published on: July 29, 2018
Célula formadora de colonias del bazo como precursora común de los mastocitos y granulocitos del tejido
Nature
|May 14, 1981
Resumen
Los mastocitos del tejido se originan en las unidades formadoras de colonias del bazo (CFU-S), que son células madre hematopoyéticas. Este estudio utilizó ratones genéticamente modificados para demostrar directamente que los mastocitos son la progenie de CFU-S.
Área de la Ciencia:
- Hematología Hematología.
- Inmunología Inmunología.
- Biología de las células madre Biología de las células madre
Sus antecedentes:
- Las células madre hematopoyéticas (CFU-S) se diferencian en varios tipos de células sanguíneas.
- Los precursores de mastocitos existen en múltiples tejidos, pero su origen no está claro.
- La relación entre los precursores de mastocitos y la CFU-S no se ha establecido definitivamente.
Objetivo del estudio:
- Para determinar si los mastocitos del tejido se derivan de CFU-S.
- Para investigar la relación de linaje entre los mastocitos y las células madre hematopoyéticas.
Principales métodos:
- Se utilizaron modelos de ratones mutantes: beige (C57BL/6-bg/bg) para la identificación celular y WBB6F1-W/Wv como receptores que carecían de mastocitos.
- Células inyectadas de colonias individuales de bazo en ratones WBB6F1-W/Wv.
- Seguimiento del desarrollo de mastocitos de CFU-S inyectado.
Principales resultados:
- Se demostró que las unidades formadoras de colonias del bazo (CFU-S) pueden dar lugar a mastocitos de tejido.
- Confirmó que los mastocitos son de hecho la progenie de las células madre hematopoyéticas.
- Utilizó granulos gigantes en ratones beige para el rastreo de linaje de mastocitos y granulocitos.
Conclusiones:
- Los mastocitos de los tejidos se originan a partir de células madre hematopoyéticas (CFU-S).
- Este hallazgo aclara la vía de desarrollo de los mastocitos dentro del sistema hematopoyético.
- Proporciona evidencia directa de CFU-S como células madre multipotentes, incluida la diferenciación de mastocitos.
Videos de Conceptos Relacionados
Hematopoiesis
The process of blood cell formation is called hematopoiesis. Hematopoiesis starts early during development, on the seventh day of embryogenesis. This phase of hematopoiesis is called the primitive wave, wherein the extraembryonic yolk sac allows the production of erythroid cells and endothelial cells from a common precursor called hemangioblast. The erythroid cells provide oxygen to support the growth of the rapidly dividing embryo. Hemangioblasts later develop into hematopoietic stem cells or...
Multipotency of Hematopoietic Stem Cells
The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
Lineage Commitment
Commitment is the process whereby stem cells:
Differentiation of Common Myeloid Progenitor Cells
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
Production of Formed Elements
Hemangioblasts are multipotent stem cells originating from the mesoderm. They give rise to hematopoietic stem cells (HSCs), which undergo hematopoiesis to produce all the formed elements of blood. This process is regulated by a complex network of hematopoietic growth factors, including transcription factors, growth factors, and cytokines. These factors stimulate the HSCs to divide and differentiate, though some HSCs remain undifferentiated to maintain a self-renewing pool.
Most HSCs commit to...
Most HSCs commit to...
Cells of the Adaptive Immune Response
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...

