Abstract
Background/Aims: Autophagy plays critical roles in both cell survival and cell death. Beclin-1, a key modulator of autophagy function, is considered a haploinsufficient tumor suppressor. The role of Beclin-1 expression in cancer is still controversial. Some studies favor the idea that autophagy suppresses tumor development, whereas other researchers suggest that autophagy enhances tumorigenesis. The expression and function of Beclin-1 in gallbladder cancer (GBCA) remain largely unknown. Methodology: We performed immunohistochemical staining for Beclin-1 in 119 GBCA cases, and investigated whether Beclin-1 expression correlated with clinicopathologic characteristics and prognosis of patients. Results: Beclin-1 was expressed in the cytoplasm of cancer cells with occasional nuclear staining in 53 (44.5%) of the 119 cases of GBCA with no expression in adjacent normal epithelial cells. Increased expression of Beclin-1 was significantly associated with longer survival rate of patients with GBCA in univariate (p=0.006) and multivariate analyses (p=0.005). There is no association between Beclin-1 expression and clinicopathologic characteristics. Conclusions: Beclin-1 was highly expressed in GBCA, and positive expression in cancer cells was significantly related with favorable prognosis in GBCA patients. Our results suggest that the expression of Beclin-1 may be an independent predictive marker of favorable prognosis in GBCA.
| Original language | English |
|---|---|
| Pages (from-to) | 1494-1500 |
| Number of pages | 7 |
| Journal | Hepato-gastroenterology |
| Volume | 61 |
| Issue number | 134 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Hepatology
- Gastroenterology
Cite this
}
Clinicopathologic correlation of autophagy-related Beclin-1 expression in gallbladder cancer. / Park, Jae Young; Kim, Hyunsoo; Cho, Hyuck; Kim, Nam Chul; Chae, Kyu Hee; Park, Won Seo; Kim, Youn Wha.
In: Hepato-gastroenterology, Vol. 61, No. 134, 01.01.2014, p. 1494-1500.Research output: Contribution to journal › Article
TY - JOUR
T1 - Clinicopathologic correlation of autophagy-related Beclin-1 expression in gallbladder cancer
AU - Park, Jae Young
AU - Kim, Hyunsoo
AU - Cho, Hyuck
AU - Kim, Nam Chul
AU - Chae, Kyu Hee
AU - Park, Won Seo
AU - Kim, Youn Wha
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Background/Aims: Autophagy plays critical roles in both cell survival and cell death. Beclin-1, a key modulator of autophagy function, is considered a haploinsufficient tumor suppressor. The role of Beclin-1 expression in cancer is still controversial. Some studies favor the idea that autophagy suppresses tumor development, whereas other researchers suggest that autophagy enhances tumorigenesis. The expression and function of Beclin-1 in gallbladder cancer (GBCA) remain largely unknown. Methodology: We performed immunohistochemical staining for Beclin-1 in 119 GBCA cases, and investigated whether Beclin-1 expression correlated with clinicopathologic characteristics and prognosis of patients. Results: Beclin-1 was expressed in the cytoplasm of cancer cells with occasional nuclear staining in 53 (44.5%) of the 119 cases of GBCA with no expression in adjacent normal epithelial cells. Increased expression of Beclin-1 was significantly associated with longer survival rate of patients with GBCA in univariate (p=0.006) and multivariate analyses (p=0.005). There is no association between Beclin-1 expression and clinicopathologic characteristics. Conclusions: Beclin-1 was highly expressed in GBCA, and positive expression in cancer cells was significantly related with favorable prognosis in GBCA patients. Our results suggest that the expression of Beclin-1 may be an independent predictive marker of favorable prognosis in GBCA.
AB - Background/Aims: Autophagy plays critical roles in both cell survival and cell death. Beclin-1, a key modulator of autophagy function, is considered a haploinsufficient tumor suppressor. The role of Beclin-1 expression in cancer is still controversial. Some studies favor the idea that autophagy suppresses tumor development, whereas other researchers suggest that autophagy enhances tumorigenesis. The expression and function of Beclin-1 in gallbladder cancer (GBCA) remain largely unknown. Methodology: We performed immunohistochemical staining for Beclin-1 in 119 GBCA cases, and investigated whether Beclin-1 expression correlated with clinicopathologic characteristics and prognosis of patients. Results: Beclin-1 was expressed in the cytoplasm of cancer cells with occasional nuclear staining in 53 (44.5%) of the 119 cases of GBCA with no expression in adjacent normal epithelial cells. Increased expression of Beclin-1 was significantly associated with longer survival rate of patients with GBCA in univariate (p=0.006) and multivariate analyses (p=0.005). There is no association between Beclin-1 expression and clinicopathologic characteristics. Conclusions: Beclin-1 was highly expressed in GBCA, and positive expression in cancer cells was significantly related with favorable prognosis in GBCA patients. Our results suggest that the expression of Beclin-1 may be an independent predictive marker of favorable prognosis in GBCA.
UR - http://www.scopus.com/inward/record.url?scp=84906965956&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84906965956&partnerID=8YFLogxK
U2 - 10.5754/hge13360
DO - 10.5754/hge13360
M3 - Article
VL - 61
SP - 1494
EP - 1500
JO - Acta hepato-splenologica
JF - Acta hepato-splenologica
SN - 0172-6390
IS - 134
ER -