Clinical significance of expression of apoptotic signal proteins in gastric carcinoma tissue.

Abstract:

AIM:To evaluate the expressions of apoptotic signal proteins FADD, TRADD, FasL, Fas, and NFkappaB in gastric carcinoma tissues and their clinical significance. METHODS:Western blot immune trace method was adopted to detect the expressions of apoptotic signal proteins FADD, TRADD, FasL, Fas, and NFkappaB in 55 tissue specimens of gastric carcinoma. RESULTS:Five apoptotic signal proteins had different expressions in the gastric carcinoma samples and their expressions were not correlated to age (P = 0.085). Expressions of the FADD, FasL, Fas, and NFkappaB proteins reduced with increase of the volume of tumor with the exception of increased expression the TRADD protein (64.7-71.1%, P = 0.031). With gradual increase of the malignancy of gastric carcinoma tissues, expressions of the FADD, FasL, and Fas proteins decreased (78.6-28.0%, P = 0.008; 78.6-65.9%, P = 0.071; 100.0-46.3%, P = 0.014), while expressions of the TRADD and NFkappaB proteins increased (42.9-78.1%, P = 0.063; 78.6-79.1%, P = 0.134). With gradual increase of serum CEA, expression of the FADD protein decreased (62.5-34.0%, P = 0.073), but expressions of the TRADD, FasL, Fas, and NFkappaB proteins increased (0.0-80.8%, P = 0.005; 62.5-70.2%, P = 0.093; 0.0-70.2%, P = 0.003; 62.5-80.9%, P = 0.075). When compared to the tissues of gastric carcinoma without metastasis, the positive rate of expressions of the FADD and FasL proteins increased, whereas expressions of the TRADD, FADD, and NFkappaB proteins decreased. There was no significant difference between them (P = 0.095). CONCLUSION:Gastric carcinoma is endurable to Fas-related apoptosis and apoptotic signal proteins are differently expressed in gastric carcinoma.

journal_name

World J Gastroenterol

authors

Zhao XH,Gu SZ,Tian HG,Quan P,Pan BR

doi

10.3748/wjg.v11.i25.3846

keywords:

subject

Has Abstract

pub_date

2005-07-07 00:00:00

pages

3846-9

issue

25

eissn

1007-9327

issn

2219-2840

journal_volume

11

pub_type

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