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Las células similares a la microglía del sistema nervioso periférico regulan el tamaño del soma neuronal a lo largo

Zhisheng Wu1, Yiheng Wang2, Wei-Wei Chen3

  • 1Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Department of Immunology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; School of Chemistry and Chemical Engineering, Center of Interventional Radiology and Vascular Surgery, Nurturing Center of Jiangsu Province for State Laboratory of AI Imaging & Interventional Radiology, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, China.

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Los investigadores descubrieron células similares a la microglía del sistema nervioso periférico (SNP), cruciales para la regulación del tamaño y la función de las neuronas. Estas células, similares a la microglía del sistema nervioso central (SNC), son vitales para el desarrollo y la evolución neuronal.

Palabras clave:
La microglía del SNPLa evoluciónLos macrófagoslas microglíascélula de tipo microglialinaje microglialDesarrollo neuronalTamaño del soma neuronalmicroglía periféricasistema nervioso periférico

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Área de la Ciencia:

  • La neurociencia
  • Inmunología
  • Biología evolutiva

Sus antecedentes:

  • Las microglías son células inmunes clave en el sistema nervioso central (SNC).
  • Históricamente, se creía que la microglía estaba ausente del sistema nervioso periférico (SNP).

Objetivo del estudio:

  • Identificar y caracterizar una nueva población de macrófagos en el SNP.
  • Investigar el origen, la función y la importancia evolutiva de esta población de células del SNP.

Principales métodos:

  • Perfiles transcriptómicos y epigenéticos de los macrófagos del SNP.
  • Análisis filogenético en 24 especies de vertebrados.
  • Estudios funcionales sobre el desarrollo neuronal y la regulación del tamaño.

Principales resultados:

  • Se identificó una población de macrófagos del SNP, denominada células similares a la microglía del SNP.
  • Estas células comparten perfiles moleculares y de desarrollo con la microglía del SNC.
  • Las células similares a la microglía del SNP regulan el tamaño del soma neuronal y el crecimiento del axón, y su presencia se correlaciona con el tamaño del soma neuronal en los vertebrados.

Conclusiones:

  • El estudio revela una contraparte del SNP a la microglía del SNC.
  • Las células similares a la microglía del SNP juegan un papel crítico en la regulación del tamaño del soma neuronal durante el desarrollo y la evolución.
  • Los hallazgos redefinen la distribución y función de las células relacionadas con la microglía en el sistema nervioso.