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Related Concept Videos

Abnormal Proliferation02:23

Abnormal Proliferation

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 daughter...
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The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
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Related Experiment Video

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Employing Digital Droplet PCR to Detect BRAF V600E Mutations in Formalin-fixed Paraffin-embedded Reference Standard Cell Lines
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Hyperplastic Polyposis Syndrome Identified with a BRAF Mutation.

Hyung Su Ahn1, Su Jin Hong, Hee Kyung Kim

  • 1Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine, Bucheon, Korea.

Gut and Liver
|May 10, 2012
PubMed
Summary
This summary is machine-generated.

Hyperplastic polyposis syndrome (HPS) involves numerous polyps and increases colorectal cancer risk. This report details a rare Korean case of HPS with a BRAF gene mutation in a 34-year-old woman.

Keywords:
BRAFHyperplastic polyposis syndrome

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Area of Science:

  • Gastroenterology
  • Oncology
  • Genetics

Background:

  • Hyperplastic polyposis syndrome (HPS) is a rare condition characterized by numerous hyperplastic polyps (HPs).
  • HPS significantly increases the risk of colorectal cancer, often linked to specific gene mutations.
  • HPS cases associated with gene mutations are seldom reported in Korea.

Purpose of the Study:

  • To report a rare case of HPS in Korea.
  • To investigate the genetic mutations associated with HPS in this patient.
  • To highlight the link between HPS, BRAF mutations, and colorectal cancer risk.

Main Methods:

  • Histopathological diagnosis of hyperplastic polyps.
  • Genetic analysis for BRAF and K-RAS mutations.
  • Microsatellite instability analysis on resected polyps.

Main Results:

  • A 34-year-old woman presented with over 110 hyperplastic polyps in the stomach and colorectum.
  • Histology confirmed all polyps as hyperplastic, with no adenomatous or malignant changes.
  • BRAF mutations were detected in the resected colon polyps; K-RAS mutations and microsatellite instability were absent.

Conclusions:

  • This case represents a rare instance of HPS with a BRAF mutation in Korea.
  • The findings reinforce the association between HPS, BRAF mutations, and potential progression to colorectal cancer.
  • Further research is warranted to understand the specific role of BRAF mutations in HPS pathogenesis.