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Tumor Progression02:07

Tumor Progression

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Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
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Related Experiment Video

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Processing of Primary Brain Tumor Tissue for Stem Cell Assays and Flow Sorting
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Molecular drivers in primary brain tumor formation.

Hope T Richard1

  • 1Department of Pathology, Virginia Commonwealth University Health, Richmond, Virginia.

Advances in Cancer Research
|July 17, 2025
PubMed
Summary

Gliomas are aggressive primary brain tumors in adults with poor survival rates. This chapter explores the complex molecular changes driving glioma growth and resistance to treatment.

Keywords:
Glioma stem cellGliomagenesisMolecular alterations in gliomas

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Area of Science:

  • Neuro-oncology
  • Cancer Biology
  • Molecular Genetics

Background:

  • Gliomas represent a significant portion of adult primary brain tumors.
  • Current treatment strategies for gliomas are limited, leading to poor overall survival.
  • These tumors exhibit substantial genetic heterogeneity and complex signaling pathways.

Purpose of the Study:

  • To provide an in-depth analysis of the molecular mechanisms underlying glioma formation and progression.
  • To elucidate the signaling networks that contribute to the aggressive nature of gliomas.
  • To examine the factors responsible for chemo- and radio-resistance in glioma cells.

Main Methods:

  • Review of current scientific literature on glioma biology.
  • Analysis of genetic and molecular alterations in glioma subtypes.
  • Examination of signaling pathways implicated in tumor growth and treatment resistance.

Main Results:

  • Glioma development is driven by intricate molecular alterations and aberrant signaling.
  • Genetic heterogeneity contributes to diverse tumor behaviors and treatment responses.
  • Complex signaling networks promote rapid infiltrative growth and resistance to therapies.

Conclusions:

  • Understanding the molecular basis of gliomas is crucial for developing effective treatments.
  • Targeting specific signaling pathways may overcome resistance mechanisms.
  • Further research into glioma heterogeneity can inform personalized therapeutic approaches.