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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Biochem+Biophys+Res+Commun
2014 ; 446
(4
): 863-9
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Identification of prosaposin and transgelin as potential biomarkers for
gallbladder cancer using quantitative proteomics
#MMPMID24657443
Sahasrabuddhe NA
; Barbhuiya MA
; Bhunia S
; Subbannayya T
; Gowda H
; Advani J
; Shrivastav BR
; Navani S
; Leal P
; Roa JC
; Chaerkady R
; Gupta S
; Chatterjee A
; Pandey A
; Tiwari PK
Biochem Biophys Res Commun
2014[Apr]; 446
(4
): 863-9
PMID24657443
show ga
Gallbladder cancer is an uncommon but lethal malignancy with particularly high
incidence in Chile, India, Japan and China. There is a paucity of unbiased
large-scale studies investigating molecular basis of gallbladder cancer. To
systematically identify differentially regulated proteins in gallbladder cancer,
iTRAQ-based quantitative proteomics of gallbladder cancer was carried out using
Fourier transform high resolution mass spectrometry. Of the 2575 proteins
identified, proteins upregulated in gallbladder cancer included several lysosomal
proteins such as prosaposin, cathepsin Z and cathepsin H. Downregulated proteins
included serine protease HTRA1 and transgelin, which have been reported to be
downregulated in several other cancers. Novel biomarker candidates including
prosaposin and transgelin were validated to be upregulated and downregulated,
respectively, in gallbladder cancer using tissue microarrays. Our study provides
the first large scale proteomic characterization of gallbladder cancer which will
serve as a resource for future discovery of biomarkers for gallbladder cancer.