Phospholipase A2 group IIA expression in gastric adenocarcinoma is associated with prolonged survival and less frequent metastasis.
نویسندگان
چکیده
We analyzed gene expression patterns in human gastric cancers by using cDNA microarrays representing approximately equal 30,300 genes. Expression of PLA2G2A, a gene previously implicated as a modifier of the Apc(Min/+) (multiple intestinal neoplasia 1) mutant phenotype in the mouse, was significantly correlated with patient survival. We confirmed this observation in an independent set of patient samples by using quantitative RT-PCR. Beyond its potential diagnostic and prognostic significance, this result suggests the intriguing possibility that the activity of PLA2G2A may suppress progression or metastasis of human gastric cancer.
منابع مشابه
Group IIa secretory phospholipase A2 (sPLA2IIa) and progression in patients with lung cancer.
OBJECTIVE Group IIa secretory phospholipase A2 (sPLA2 IIa) plays a role in the malignant potential of several epithelial cancers. It is overexpressed in many cancer specimens and its elevated levels are correlated with high tumor grade and metastasis. Here, we evaluate the clinical significance of sPLA2 IIa in lung adenocarcinoma and the role of sPLA2 IIa in the process of cancer cell invasion ...
متن کامل5-Year Survival in Gastric Adenocarcinoma with Epithelial and Stromal Versican Expression
Background & Objective: Gastric cancer is the second most frequent cause of cancer death worldwide, despite differences in incidence around the world. The majority of gastric cancer cases concern gastric adenocarcinoma, which has a fairly high 5-year survival rate when coupled with early-stage diagnosis. Versican, a member of the aggregating chondroitin sulfate proteoglycans fa...
متن کاملبررسی بیان پروتئین های p53 و HER2 با عوامل مرتبط با پیش آگهی کارسینوم معده به روش ایمونوهیستوشیمی
Background and purpose: Gastric carcinoma is one of the most common malignancies and its early diagnosis can be effective in the treatment method and the rate of the patients’ survival. Ïn the past recent years, many genes have been identified which may have relationship with the prognosis of this disease and the patient’s survival. This study is going to investigate the rate and pattern of p53...
متن کاملCytokeratin7 expression in gastric and colorectal adenocarcinoma: Correlation with prognostic factors
Background: Gastric and colorectal adenocarcinoma are the second and the fifth most common cancers in Iran, respectively. Expression of cytokeratin 7 (CK7) is established in most malignancies including gastric and colorectal adenocarcinoma. Demonstration of Ck7 could be related to prognostic factors and help to the better management of the patients. The objective of our study was to evalu...
متن کاملIntracellular actions of group IIA secreted phospholipase A2 and group IVA cytosolic phospholipase A2 contribute to arachidonic acid release and prostaglandin production in rat gastric mucosal cells and transfected human embryonic kidney cells.
Gastric epithelial cells liberate prostaglandin E(2) in response to cytokines as part of the process of healing of gastric lesions. Treatment of the rat gastric epithelial cell line RGM1 with transforming growth factor-alpha and interleukin-1beta leads to synergistic release of arachidonate and production of prostaglandin E(2). Results with highly specific and potent phospholipase A(2) inhibito...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 99 25 شماره
صفحات -
تاریخ انتشار 2002