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Pan-cancer multi-omics analysis of CCT4 in tumor progression and cancer immunity, with focus on lung adenocarcinoma
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Pan-cancer multi-omics analysis of CCT4 in tumor progression and cancer immunity, with focus on lung adenocarcinoma
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Journal Article
Pan-cancer multi-omics analysis of CCT4 in tumor progression and cancer immunity, with focus on lung adenocarcinoma
2025
Overview
Efficient proteostasis and immune evasion are both critical for tumor progression. The chaperonin TRiC/CCT complex, which mediates the folding of cytoskeletal and signaling proteins, has been associated with oncogenesis; however, the specific role of its subunit CCT4 in tumor-immune interactions remain unclear.
To address this gap, we integrated transcriptomics, proteomics, genomics, epigenetics and immunogenomics data. A comprehensive pan-cancer analysis was conducted (including the expression patterns, clinical relevance, prognosis value, immune infiltration of pan-cancer). Then an in-depth analysis of lung adenocarcinoma (LUAD) was carried out through enrichment analysis and single-cell RNA sequencing, and verified through
cell experiments.
CCT4 was found to be aberrantly upregulated across a majority of tumor types, particularly in LUAD, where elevated expression was associated with advanced stage and inferior survival outcomes. High CCT4 levels were linked to reduced immune cell infiltration and diminished anti-tumor immune signaling, specifically manifested as increased Th2 cell infiltration and decreased Th1 and CD8
T-cell signatures. Single-cell analyses revealed coordinated overexpression of all CCT subunits in tumor epithelial cells, supporting a global TRiC activation. However, CCT4 was preferentially enriched within highly proliferative subclusters, suggesting partial subunit-specific regulation. CCT4 knockdown suppressed LUAD cell proliferation, migration, and invasion
.
CCT4 links enhanced proteostasis with immune evasion in LUAD, acting partly through TRiC complex activity and possibly through independent nuclear functions. These findings refine the understanding of how proteostatic machinery contributes to immune modulation in cancer and highlight CCT4 as a potential molecular node bridging tumor growth and immune suppression.
Publisher
Frontiers Media SA,Frontiers Media S.A
Subject
/ Adenocarcinoma of Lung - genetics
/ Adenocarcinoma of Lung - immunology
/ Adenocarcinoma of Lung - metabolism
/ Adenocarcinoma of Lung - mortality
/ Adenocarcinoma of Lung - pathology
/ Cancer
/ CCT4
/ Chaperonin Containing TCP-1 - genetics
/ Chaperonin Containing TCP-1 - immunology
/ Chaperonin Containing TCP-1 - metabolism
/ Datasets
/ Gene Expression Regulation, Neoplastic
/ Humans
/ immune
/ Lymphocytes, Tumor-Infiltrating - immunology
/ Lymphocytes, Tumor-Infiltrating - metabolism
/ Mutation
/ Proteins
/ Tumor Microenvironment - immunology
/ Tumors
