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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...
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Lymphoid cells and tissues are integral to the immune system, which is crucial in maintaining our body's defense against harmful pathogens. They form the building blocks of lymphoid organs, which include the spleen, thymus, and lymph nodes.
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Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
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Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
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The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
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Células linfoides innatas: 10 años después

Eric Vivier1, David Artis2, Marco Colonna3

  • 1Innate Pharma Research Labs, Innate Pharma, Marseille, France; Aix Marseille University, CNRS, INSERM, APHM, CIML, Hôpital de la Timone, Immunologie, Marseille-Immunopole, Marseille, France.

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Las células linfoides innatas (ILC) son cruciales para la homeostasis de los tejidos, las respuestas inmunes y la reparación. Los avances recientes refinan la clasificación de ILC y destacan sus roles en el metabolismo y la regeneración de tejidos.

Palabras clave:
Imunidadlas células linfoides innatasel metabolismoNeuroinmunologíaPlasticidadremodelación de tejidos

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Área de la Ciencia:

  • Inmunología
  • Biología celular

Sus antecedentes:

  • Las células linfoides innatas (CLI) son linfocitos que carecen de receptores de antígenos diversificados.
  • Los ILC son residentes en el tejido e integran la regulación inmune y la homeostasis del tejido.
  • Durante la última década, la investigación de ILC ha remodelado la comprensión de las respuestas inmunes a los microbios y la inflamación.

Objetivo del estudio:

  • Para revisar y destilar los avances en biología ILC en la última década.
  • Refinar la nomenclatura y la categorización de las ILC.
  • Destacar las funciones multifacéticas de las ILC en la homeostasis, la morfogénesis, el metabolismo, la reparación y la regeneración de los tejidos.

Principales métodos:

  • Revisión de la literatura científica más reciente sobre la biología de la ILC.
  • Análisis de las redes de transcripción que regulan el desarrollo de ILC.
  • Evaluación del impacto de los microambientes de los tejidos en la plasticidad y la función de los CTI.

Principales resultados:

  • Los ILC son actores clave en la inmunidad de la mucosa, la potenciación de la inmunidad adaptativa y el control de la inflamación.
  • Las funciones de ILC se extienden a la homeostasis metabólica, la remodelación de los tejidos y las interacciones neuroinmunes.
  • Los avances en la comprensión de la regulación transcripcional y las influencias microambientales requieren una reevaluación de la clasificación ILC.

Conclusiones:

  • Los ILC son críticos para mantener la salud, el desarrollo, el metabolismo y la reparación de los tejidos.
  • Una comprensión refinada de la biología de ILC apoya la nomenclatura y la clasificación actualizadas.
  • Los ILC representan un vínculo vital entre la inmunidad y los procesos fisiológicos más amplios más allá de la inmunología clásica.