Medico-genetic and cytogenetic study of a family with high predisposition to malignant disease in gastro-intestinal tract.

Abstract:

:In a family consisting of 48 persons with high predisposition to familial stomach cancer (SCr), SCr was diagnosed in 8 persons (I-2; II-1,3,4; III-1,2,3,4). Moreover, one woman (III-8) had bilateral breast cancer and two (proband: IV-1 and her father's cousin: III-10) chronic gastritis. The proband, her father's cousin, his sister (III-11) and the proband's sister (IV-2) were examined clinically and cytogenetically (with the metaphase method on blood lymphocytes with G-banding of chromosome 21: (p12-pter) in 100% of cells on the basis of chromosomal instability; besides, the complex translocation in chromosome 2 in 4% of cells and the increase of q-arm of chromosome 21 was found in 2% of cells. The proband's sister (IV-2) had 3% of cells with polyploidy, the del 1 (p34-pter) in 1% of cells and the del 7 (p21-pter) in 4% of cells. The cytogenetic examination of the proband's uncle (III-10), carried out 3 times, revealed the case of the proband, endomitosis in 2% of cells, polyploidy in 2% of cells and hyperaneuploidy in 4% of cells. His sister (III-11) had 4% of cells with endomitosis, 3% of cells with chromosome and chromatid breaches, an increase of the p-arm of chromosome 21 in 100% of cells and the loss of 7p in 2% of cells. The nature of the phenomenon in chromosome 21 and the translocations in the members of this family is here discussed. The cytogenetic examination is currently ongoing.

journal_name

J Exp Clin Cancer Res

authors

Monakhov AS,Gulyaev AV,Savochkina IV,Hanson KP

subject

Has Abstract

pub_date

1997-12-01 00:00:00

pages

385-8

issue

4

eissn

0392-9078

issn

1756-9966

journal_volume

16

pub_type

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