|
KMID : 0620920210530030432
|
|
Experimental & Molecular Medicine
2021 Volume.53 No. 3 p.432 ~ p.445
|
|
|
Pancreatic cancer induces muscle wasting by promoting the release of pancreatic adenocarcinoma upregulated factor
|
|
Yoo Won-Beak
Choi Hyun-Ji
Son Young-Hoon
Lee Jae-Min
Jo Seong-Yea
Jung Dana
Kim Yeon-Jeong
Koh Sang-Seok
Yang Yong-Ryoul
Kwon Eun-Soo
Lee Kwang-Pyo
Noh Kyung-Hee
Kim Kyung-Won
Ko You-Sun
Jun Eun-Sung
Kim Song-Cheol
Kim Seok-Ho
|
|
|
Abstract
|
|
|
|
Cancer cachexia is a highly debilitating condition characterized by weight loss and muscle wasting that contributes significantly to the morbidity and mortality of pancreatic cancer. The factors that induce cachexia in pancreatic cancer are largely unknown. We previously showed that pancreatic adenocarcinoma upregulated factor (PAUF) secreted by pancreatic cancer cells is responsible for tumor growth and metastasis. Here, we analyzed the relation between pancreatic cancer-derived PAUF and cancer cachexia in mice and its clinical significance. Body weight loss and muscle weight loss were significantly higher in mice with Panc-1/PAUF tumors than in those with Panc-1/Mock tumors. Direct administration of rPAUF to muscle recapitulated tumor-induced atrophy, and a PAUF-neutralizing antibody abrogated tumor-induced muscle wasting in Panc-1/PAUF tumor-bearing mice. C2C12 myotubes treated with rPAUF exhibited rapid inactivation of Akt-Foxo3a signaling, resulting in Atrogin1/MAFbx upregulation, myosin heavy chain loss, and muscle atrophy. The neutrophil-to-lymphocyte ratio and body weight loss were significantly higher in pancreatic cancer patients with high PAUF expression than in those with low PAUF expression. Analysis of different pancreatic cancer datasets showed that PAUF expression was significantly higher in the pancreatic cancer group than in the nontumor group. Analysis of The Cancer Genome Atlas data found associations between high PAUF expression or a high DNA copy number and poor overall survival. Our data identified tumor-secreted circulating PAUF as a key factor of cachexia, causing muscle wasting in mice. Neutralizing PAUF may be a useful therapeutic strategy for the treatment of pancreatic cancer-induced cachexia.
|
|
|
KEYWORD
|
|
|
Pancreatic cancer
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
    
|