Juvenile polyposis and other intestinal polyposis syndromes with microdeletions of chromosome 10q22-23

Clin Genet. 2012 Feb;81(2):110-6. doi: 10.1111/j.1399-0004.2011.01763.x. Epub 2011 Sep 6.


Juvenile polyposis (JP) is an autosomal dominant hamartomatous polyposis syndrome that carries a significant risk for the development of colorectal cancer. Microdeletions of one of the two predisposing genes to JP, BMPR1A, have been associated with a severe form of JP called juvenile polyposis of infancy. Many of these deletions have also been found to contiguously include PTEN, which is the gene responsible for the development of Cowden syndrome. The advent of molecular techniques that localize genomic copy number variations and others that target specific genes such as multiplex-ligation probe analysis has allowed researchers to explore this area further for deletions. Here, we review the literature for microdeletions described on chromosome 10q22-23 in patients with JP and other intestinal polyposis syndromes.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Bone Morphogenetic Protein Receptors, Type I / genetics
  • Chromosome Deletion*
  • Chromosomes, Human, Pair 10*
  • Cytogenetic Analysis
  • Humans
  • Intestinal Polyposis / congenital*
  • Intestinal Polyposis / genetics*
  • Neoplastic Syndromes, Hereditary
  • PTEN Phosphohydrolase / genetics


  • Bone Morphogenetic Protein Receptors, Type I
  • PTEN Phosphohydrolase
  • PTEN protein, human

Supplementary concepts

  • Juvenile polyposis syndrome