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Cocultivation studies with cells of patients bearing fragile X chromosomes.

Authors
  • Eberle, G
  • Zankl, H
  • Zankl, M
Type
Published Article
Journal
Human genetics
Publication Date
Jan 01, 1982
Volume
61
Issue
2
Pages
163–164
Identifiers
PMID: 7129443
Source
Medline
License
Unknown

Abstract

Fourteen cocultivation studies were carried out with cells of our patients with fragile X, one obligate and two possible female heterozygotes, two female controls, and a rabbit. In all cocultivations the number of fragile X chromosomes was sharply reduced in the patient cells. The strongest effect was causes by the animal cells. A distinct difference between the two controls in the reducing ability was observed. No such difference was found between the obligate and possible heterozygotes on the one hand and the controls on the other. To test the influence of the residual serum in the mixed blood cultures, the serum of a patient's blood sample was replaced by the serum of a control. The frequency of fragile X chromosomes was not decreased by this procedure. Therefore a soluble factor is supposed to exist which is produced by normal or heterozygote cells in culture and which reduces the expression of fragile sites in patient cells.

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