The Prognostic Role of Tertiary Lymphoid Structures and Immune Microenvironment Signatures in Early-Stage EGFR-Mutant Lung Adenocarcinoma
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.High tertiary lymphoid structures (TLSs) density in early-stage EGFR-mutant lung adenocarcinoma predicts longer disease-free survival. TLS density may serve as a prognostic biomarker, indicating enhanced immune activity in tumors.
Area Of Science
- Oncology
- Immunology
- Cancer Research
Background
- Tertiary lymphoid structures (TLSs) are crucial in cancer prognosis.
- Their role in early-stage EGFR-mutant lung adenocarcinoma is not well understood.
- Recurrence remains a challenge despite better outcomes in early-stage lung cancer.
Purpose Of The Study
- To investigate the prognostic value of TLSs in early-stage EGFR-mutant lung adenocarcinoma.
- To analyze the molecular characteristics of TLSs in relation to patient outcomes.
- To determine if TLS density is an independent prognostic factor.
Main Methods
- TLSs were identified and quantified in tumor samples using multiplex immunohistochemistry (IHC).
- Associations between TLS density, PD-L1 tumor proportion score (TPS), and disease-free survival (DFS) were analyzed.
- Gene expression profiling compared tumor microenvironment signatures between high- and low-TLS-density groups.
Main Results
- High TLS density significantly correlated with longer DFS (43 vs. 20.5 months).
- No association was found between TLS density and PD-L1 TPS or EGFR mutation subtype.
- Transcriptomic analysis revealed upregulated immune response genes in high-TLS-density tumors and tumor-promoting pathways in low-TLS-density tumors.
Conclusions
- TLS density is a potential prognostic biomarker for DFS in early-stage EGFR-mutant lung adenocarcinoma.
- TLS density is independent of PD-L1 TPS and EGFR mutation subtype.
- TLSs represent a potential therapeutic target for improving outcomes in these patients due to enhanced immune activation.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...