Single-stranded DNA (ssDNA) Labeling Index Is Related to Risk Grade in Patients with Gastrointestinal Stromal Tumors.

Abstract:

BACKGROUND/AIM:The main objective of the present study was to evaluate the significance of apoptosis in the Fletcher's risk classification for gastrointestinal stromal tumors (GISTs). MATERIALS AND METHODS:Apoptotic cells were identified by immunostaining for single-stranded DNA (ssDNA). We assigned each GIST to one of four risk groups: very low risk, n=32; low risk, n=53; intermediate risk, n=15; high risk, n=6). RESULTS:The mean ssDNA labeling index for each group was 8.0±44.2, 20.1±86.5, 18.7±38.6 and 5.7±5.7, respectively. Fletcher's risk classification for GISTs correlated significantly with the ssDNA labeling index (p=0.002). CONCLUSION:The ssDNA labeling index and Ki-67 labeling index were the most significant factors corresponding to the risk grade of GISTs. These findings suggest that the ssDNA labeling index might be useful for predicting aggressive biological behavior of GISTs.

journal_name

Anticancer Res

journal_title

Anticancer research

authors

Mochizuki K,Kondo T,Oishi N,Tahara I,Inoue T,Kasai K,Nakazawa T,Katoh R

doi

10.21873/anticanres.12542

subject

Has Abstract

pub_date

2018-05-01 00:00:00

pages

2939-2943

issue

5

eissn

0250-7005

issn

1791-7530

pii

38/5/2939

journal_volume

38

pub_type

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