Proteomics

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Integrated proteome and phosphoproteome analysis of gastric adenocarcinoma reveals molecular signatures capable of stratifying patient outcome

ABSTRACT: Lymph node metastasis is one of the main causes for the low survival rate of gastric cancer patients. Exploring key proteins players in the progression of gastric adenocarcinoma (GAC) may provide new prognostic parkers and therapeutic strategies. we applied proteomic analysis to compare tumor tissues from GAC patients with or without lymph node metastasis, and captured unique molecular features of GAC patients with LNM. Analysis of the phosphoproteome provided a snapshot of abnormal phosphorylation signaling pathways and abnormal kinases activities. Furthermore, we found that TNXB and SPON1, two ECM proteins are associated with LNM status in GAC patients. Thus, our study suggests a number of proteins and kinases that has the potential to serve as prognosis markers to predict patient outcome.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

SUBMITTER: LU Xue  

LAB HEAD: LUJIAN LIAO

PROVIDER: PXD033622 | Pride | 2023-01-05

REPOSITORIES: Pride

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Integrated proteome and phosphoproteome analysis of gastric adenocarcinoma reveals molecular signatures capable of stratifying patient outcome.

Lu Xue X   Fu Yunyun Y   Gu Lei L   Zhang Yunpeng Y   Liao Antony Y AY   Wang Tingting T   Jia Bin B   Zhou Donglei D   Liao Lujian L  

Molecular oncology 20221229 2

Metastasis is one of the main causes of low survival rate of gastric cancer patients. Exploring key proteins in the progression of gastric adenocarcinoma (GAC) may provide new candidates for prognostic biomarker development and therapeutic intervention. We applied quantitative mass spectrometry to compare the proteome and phosphoproteome of primary tumor tissues between GAC patients with and without lymph node metastasis (LNM). We then performed an integrated analysis of the proteomic and transc  ...[more]

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