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. 1998 Mar;152(3):673–678.

Somatic deletion of the 5' ends of both the COL4A5 and COL4A6 genes in a sporadic leiomyoma of the esophagus.

L Heidet 1, E Boye 1, Y Cai 1, Y Sado 1, X Zhang 1, J F Fléjou 1, F Fékété 1, Y Ninomiya 1, M C Gubler 1, C Antignac 1
PMCID: PMC1858389  PMID: 9502408

Abstract

Leiomyomata of the esophagus are sporadic benign tumors of unknown etiology. We studied a collection of nine tumors for the expression of extracellular matrix components and found the same aberrant expression pattern as previously observed in inherited diffuse leiomyomatosis. We demonstrate here the occurrence of a somatic deletion at the COL4A5/COL4A6 locus at Xq22 in a frozen leiomyoma sample. These data confirm the hypothesis that the same underlying etiology is responsible for circumscribed smooth muscle proliferation in sporadic leiomyomata as for diffuse smooth muscle cell proliferation in inherited diffuse leiomyomatosis.

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Selected References

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