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Related Concept Videos

Nervous Tissue: Myelin01:25

Nervous Tissue: Myelin

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The myelin sheath is a multilayered lipid and protein covering that insulates the axon of a neuron, enhancing the speed of nerve impulse conduction. Axons without this sheath are referred to as unmyelinated. Two types of neuroglia, Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the central nervous system (CNS) are responsible for producing myelin sheaths.
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
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Peripheral Nervous System: Ganglia and Nerves01:24

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The Peripheral Nervous System (PNS) is a crucial component of the body's neural network, extending beyond the central nervous system (CNS) to bridge the gap between the CNS and the external environment. It encompasses nerves, ganglia, and sensory receptors.
Nerves
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Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
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Related Experiment Video

Updated: May 3, 2026

Author Spotlight: Genetically Engineered Mouse Models and Pathological Characterization of Neurofibromatosis Type 1 Associated Tumors
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Malignant peripheral nerve sheath tumors.

Mohamad Farid1, Elizabeth G Demicco, Roberto Garcia

  • 1Tisch Cancer Institute, Mount Sinai School of Medicine, New York, New York, USA.

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|January 29, 2014
PubMed
Summary

Malignant peripheral nerve sheath tumors (MPNST) are aggressive sarcomas with poor prognosis. Recent research reveals new molecular targets beyond neurofibromin, offering hope for improved MPNST therapies.

Keywords:
Clinical trialsMalignant peripheral nerve sheath tumorMolecular targeted therapyNeurofibromatosis type 1Sarcoma

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Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Malignant peripheral nerve sheath tumors (MPNST) are aggressive soft tissue sarcomas with poor prognosis.
  • MPNST arises sporadically, in neurofibromatosis type I, or post-radiation, presenting therapeutic challenges.
  • Current treatments show limited efficacy, with high relapse and mortality rates.

Purpose of the Study:

  • To review current understanding of MPNST biology and management.
  • To highlight recent research on molecular drivers and therapeutic targets in MPNST.
  • To inform future advancements in MPNST patient care.

Main Methods:

  • Comprehensive literature review of MPNST biology, management, and research.
  • Analysis of molecular pathways implicated in MPNST development and progression.
  • Synthesis of current therapeutic strategies and emerging treatment modalities.

Main Results:

  • MPNST biology involves complex molecular alterations beyond neurofibromin loss.
  • Key pathways include TP53, PTEN, MAPK, TOR, apoptosis, angiogenesis, and epigenetics.
  • Emerging therapeutic targets show promise for overcoming treatment resistance.

Conclusions:

  • Understanding MPNST molecular complexity is crucial for developing effective therapies.
  • Targeting novel pathways offers potential for improved patient outcomes.
  • Continued research is essential for advancing MPNST management and care.