2. Academic Validation
  3. Proteomics-based identification of the role of osteosarcoma amplified-9 in hepatocellular carcinoma recurrence

Proteomics-based identification of the role of osteosarcoma amplified-9 in hepatocellular carcinoma recurrence

  • Hepatol Commun. 2022 Aug;6(8):2182-2197. doi: 10.1002/hep4.1952.
Xuyong Wei 1 2 3,  Mengfan Yang 1 2 3 4,  Binhua Pan 1 2 3 4,  Xiaobing Zhang 1 2 3,  Hanchao Lin 1 2 3,  Wangyao Li 1 2 3,  Wenzhi Shu 1 2 3,  Kun Wang 1 2,  Abdul Rehman Khan 1 2 3 4,  Xuanyu Zhang 3 4,  Beini Cen 1 2 3,  Xiao Xu 1 2 3 4 5 6
Affiliations

Affiliations

  • 1 Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
  • 2 Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Hangzhou, China.
  • 3 NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.
  • 4 Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
  • 5 Zhejiang University Cancer Center, Hangzhou, China.
  • 6 Institute of Organ Transplantation, Zhejiang University, Hangzhou, China.
PMID: 35429130 DOI: 10.1002/hep4.1952
Abstract

Hepatocellular carcinoma (HCC) is one of the most prevalent malignancies; its recurrence is associated with high mortality and poor recurrence-free survival and is affected by multisystem and multilevel pathological changes. To identify the key proteins associated with tumor recurrence and the underlying mechanisms, proteomic profiling of tumor specimens from early recurrence and nonrecurrence patients was performed in this study. Proteomics was applied to identify differentially expressed proteins during the early recurrence of HCC after surgery. Osteosarcoma amplified-9 (OS-9) was discovered, and the correlation between OS-9 expression and the clinicopathological characteristics of patients was analyzed. Invasion and migration were examined in SMMC-7721 cells with and without OS-9 overexpression. Proteomics was performed once again using SMMC-7721 cells with OS-9 overexpression to further analyze the proteins with altered expression. OS-9 was overexpressed in the early recurrence group, and OS-9 overexpression was associated with high serum alpha-fetoprotein levels and poor recurrence-free survival in 196 patients with HCC. The invasion and migration abilities of SMMC-7721 cells were enhanced in the OS-9 overexpression group. Bioinformatic functional enrichment methods, including Gene Ontology annotation and Kyoto Encyclopedia of Genes and Genomes pathway analysis, revealed that the hypoxia-inducible factor 1 (HIF-1) and tumor necrosis factor (TNF) signaling pathways were activated in the OS-9 overexpression group. The migration and invasion capacities of OS-9 overexpressed HCC cell line were weakened while treated with HIF-1α or TNF-α inhibitors. Conclusion: Our results suggest that the overexpression of OS-9 is related to HCC recurrence, thereby contributing to the migration and invasion capacities of HCC cell line by regulating the HIF-1 and TNF pathways.

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