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Related Concept Videos

Neuroplasticity01:01

Neuroplasticity

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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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Neurogenesis and Regeneration of Nervous Tissue01:15

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In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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Cell state plasticity in neuroblastoma.

Adam D Durbin1, Rogier Versteeg2

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Tumor cells exhibit cellular plasticity, switching between mesenchymal (MES) and adrenergic (ADRN) states without genetic mutation. This plasticity in neuroblastoma may drive drug resistance and relapse.

Keywords:
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Area of Science:

  • Oncology
  • Developmental Biology
  • Cell Biology

Background:

  • Cellular plasticity allows tumor cells to change phenotypes without genetic mutation.
  • This plasticity can occur bidirectionally, unlike normal developmental processes.
  • Neuroblastoma, a childhood solid tumor, exhibits significant cellular plasticity.

Purpose of the Study:

  • To review the role of cellular plasticity in neuroblastoma.
  • To discuss the mesenchymal (MES) and adrenergic (ADRN) cell states in neuroblastoma.
  • To explore the implications of cellular plasticity in neuroblastoma treatment and relapse.

Main Methods:

  • Review of existing literature on cellular plasticity in neuroblastoma.
  • Analysis of transcriptional circuits controlling MES and ADRN states.
  • Comparison with normal sympathetic nervous system embryogenesis.

Main Results:

  • Identification and characterization of two distinct cell states: mesenchymal (MES) and adrenergic (ADRN).
  • Elucidation of transcriptional networks governing these cell state transitions.
  • Correlation of cell states with neuroblastoma development and potential therapeutic resistance.

Conclusions:

  • Cellular plasticity is a key feature of neuroblastoma, enabling transitions between MES and ADRN states.
  • Understanding these states and their regulatory circuits is crucial for developing effective neuroblastoma therapies.
  • Cellular plasticity may underlie therapeutic resistance, tumor recurrence, and disease relapse in neuroblastoma.