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Current Gene Therapy

Editor-in-Chief

ISSN (Print): 1566-5232
ISSN (Online): 1875-5631

Research Article

Single-cell and Bulk Transcriptomic Analyses Reveal a Stemness and Circadian Rhythm Disturbance-related Signature Predicting Clinical Outcome and Immunotherapy Response in Hepatocellular Carcinoma

In Press, (this is not the final "Version of Record"). Available online 05 June, 2024
Author(s): Xiaojing Zhu, Zixin Zhang, Jiaxing Zhang, Yanqi Xiao, Hao Wang, Mingwei wang, Minghui Jiang and Yan Xu*
Published on: 05 June, 2024

DOI: 10.2174/0115665232298240240529131358

Price: $95

Abstract

Aims: Investigating the impact of stemness-related circadian rhythm disruption (SCRD) on hepatocellular carcinoma (HCC) prognosis and its potential as a predictor for immunotherapy response.

Background: Circadian disruption has been linked to tumor progression through its effect on the stemness of cancer cells.

Objective: Develop a novel signature for SCRD to accurately predict clinical outcomes and immune therapy response in patients with HCC.

Methods: The stemness degree of patients with HCC was assessed based on the stemness index (mRNAsi). The co-expression circadian genes significantly correlated with mRNAsi were identified and defined as stemness- and circadian-related genes (SCRGs). The SCRD scores of samples and cells were calculated based on the SCRGs. Differentially expressed genes with a prognostic value between distinct SCRD groups were identified in bulk and single-cell datasets to develop an SCRD signature.

Results: A higher SCRD score indicates a worse patient survival rate. Analysis of the tumor microenvironment revealed a significant correlation between SCRD and infiltrating immune cells. Heterogeneous expression patterns, functional states, genomic variants, and cell-cell interactions between two SCRD populations were revealed by transcriptomic, genomic, and interaction analyses. The robust SCRD signature for predicting immunotherapy response and prognosis in patients with HCC was developed and validated in multiple independent cohorts.

Conclusions: In summary, distinct tumor immune microenvironment patterns were confirmed under SCRD in bulk and single-cell transcriptomic, and SCRD signature associated with clinical outcomes and immunotherapy response was developed and validated in HCC.

Keywords: Stemness, circadian rhythm, immunotherapy, prognosis, hepatocellular carcinoma, cell-cell interactions, immunohistochemical staining.


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