Volume 120, Issue 7 pp. 582-590
Original Article

Galectin-1 is up-regulated by RASSF1A gene in human gastric carcinoma cell line SGC7901

Deng Zheng-Hao

Deng Zheng-Hao

Department of Pathology, XiangYa School of Medicine, Central South University, Changsha, Hunan Province, China

Search for more papers by this author
Wen Ji-Fang

Wen Ji-Fang

Department of Pathology, XiangYa School of Medicine, Central South University, Changsha, Hunan Province, China

Search for more papers by this author
Xiao De-Sheng

Xiao De-Sheng

Department of Pathology, XiangYa School of Medicine, Central South University, Changsha, Hunan Province, China

Search for more papers by this author
Zhou Jian-Hua

Corresponding Author

Zhou Jian-Hua

Department of Pathology, XiangYa School of Medicine, Central South University, Changsha, Hunan Province, China

Zhou Jian-Hua, Department of Pathology, XiangYa School of Medicine, Central South University, Chang Sha, Hunan Province, China, 410078. e-mail: [email protected]Search for more papers by this author
First published: 02 March 2012
Citations: 2

Abstract

We have previously shown that overexpression of RASSF1A inhibits the growth of human gastric cancer SGC7901 cells, but the underlying mechanism remains unknown. In this study, the differential protein expression by RASSF1A gene in human gastric cancer cell line SGC7901 was determined by 2-D gel electrophoresis combined with matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) and bioinformatics. Differential expression analysis of the protein profiles by RASSF1A gene identified a total of 35 protein spots, of which 10 were up-regulated and 25 were down-regulated. Eight proteins were identified by MALDI-TOF MS: Galectin-1, TRP-14, ACBP, PSMB5, PSMB4, TIM, vimentin, CD79α. RASSF1A up-regulated the mRNA expression of Galectin-1, TRP-14, ABCP in SGC7901. RASSF1A also led to an increased expression of Galectin-1 protein in SGC7901 confirmed by western blotting and immunocytochemistry analysis. RASSF1A inhibited the activity of NF-κB in SGC7901 cells. These data indicated that Galectin-1 may be playing a role in RASSF1A signaling in SGC7901.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.