Novel T cell exhaustion gene signature to predict prognosis and immunotherapy response in thyroid carcinoma from integrated RNA-sequencing analysis

© 2024. The Author(s)..

Exhausted CD8+ T lymphocytes and tumor-associated macrophages play critical roles in determining cancer prognosis and the efficacy of immunotherapy. Our study revealed a negative correlation between exhausted CD8+ T lymphocytes and prognosis in thyroid carcinoma (THCA). Consensus clustering divided patients into two subgroups of exhaustion with different prognoses, as defined by marker genes of exhausted CD8+ T cells. Subsequently, we constructed an eight-gene prognostic signature, and developed a risk score named the exhaustion-related gene score (ERGS) to forecast both prognosis and immunotherapy response in THCA. Bulk RNA sequencing analysis revealed a higher prevalence of M2 macrophages, indicative of an immunosuppressive tumor microenvironment (TME), in the high-ERGS group. Single-cell RNA sequencing showed that SPP1+ macrophages and CD14+ monocytes infiltrations were positively associated with higher ERGS. Functionally, it was determined that SPP1+ macrophages exert an immunosuppressive role, while CD14+ monocytes were implicated in promoting tumor progression and angiogenesis. Analysis of cell-cell interactions between SPP1+ macrophages and T cells highlighted the activation of the SPP1-CD44 and MIF-CD74 axes, both of which could foster an immunosuppressive TME. Therapeutic strategies that target SPP1+ macrophages, CD14+ monocytes, and the SPP1-CD44 and MIF-CD74 axes may potentially improve the prognosis and amplify the immunotherapy response in THCA patients.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:14

Enthalten in:

Scientific reports - 14(2024), 1 vom: 10. Apr., Seite 8375

Sprache:

Englisch

Beteiligte Personen:

Li, Yang [VerfasserIn]
Wang, Zhen [VerfasserIn]
Lu, Fangting [VerfasserIn]
Miao, Yahu [VerfasserIn]
Feng, Qing [VerfasserIn]
Zhu, Weixi [VerfasserIn]
Kang, Qingqing [VerfasserIn]
Chen, Yijing [VerfasserIn]
Zhang, Qiu [VerfasserIn]

Links:

Volltext

Themen:

63231-63-0
Gene signature
Immunosuppressive Agents
Immunotherapy
Journal Article
RNA
Single-cell RNA-sequencing
T cell exhaustion
Thyroid carcinoma
Tumor-associated macrophage

Anmerkungen:

Date Completed 12.04.2024

Date Revised 25.04.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-024-58419-7

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM37089572X