Tumor Microenvironment Dynamics in Esophageal Cancer
Summary
The tumour microenvironment (TME) in esophageal cancer comprises a complex and dynamic network of cellular and non-cellular components that collectively govern tumour growth, invasion, metastasis and response to therapy. Key cellular elements include cancer-associated fibroblasts (CAFs), tumour-associated macrophages (TAMs), T lymphocytes and endothelial cells. Non-cellular constituents such as the extracellular matrix (ECM), secreted cytokines, chemokines and growth factors create a biochemical and biophysical milieu that modulates signalling pathways, metabolic reprogramming and immune surveillance. Hypoxia and aberrant vasculature within the TME drive adaptive responses in cancer cells, promoting epithelial–mesenchymal transition (EMT) and dissemination to distant sites. Reciprocal crosstalk between malignant cells and stromal elements underpins desmoplastic remodelling and immunosuppressive niches that hinder the efficacy of chemotherapy, radiotherapy and immunotherapy. Emerging evidence highlights spatial and temporal heterogeneity in TME composition, with distinct molecular subtypes of oesophageal adenocarcinoma and squamous cell carcinoma exhibiting divergent immune landscapes. Targeting TME dynamics through combinatorial strategies—such as blockade of immune checkpoints, re-education of TAMs, inhibition of CAF-derived factors and ECM-modifying agents—offers promising avenues for improved clinical outcomes. A deeper understanding of the interdependent networks within the TME is essential for the development of predictive biomarkers and personalised therapeutic regimens in oesophageal cancer.
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Tumor Microenvironment Dynamics in Esophageal Cancer publication trend
The graph below shows the total number of articles in tumor microenvironment dynamics in esophageal cancer across all publications each year (not limited to Nature Index journals).
Technical terms
Tumour microenvironment (TME): The local milieu surrounding a tumour, including stromal cells, immune cells, blood vessels and extracellular components, which collectively influence cancer behaviour and treatment response.
Cancer-associated fibroblast (CAF): A type of activated fibroblast within the TME that secretes growth factors, cytokines and matrix proteins, promoting tumour progression and therapy resistance.
Extracellular matrix (ECM): A network of proteins and glycoproteins that provides structural support and biochemical signals to cells, whose remodelling affects tumour invasion and angiogenesis.
Immune checkpoint: A regulatory pathway in immune cells that modulates activation and prevents autoimmunity; cancer cells exploit checkpoints (e.g., PD-1/PD-L1) to evade immune attack.
Epithelial–mesenchymal transition (EMT): A cellular programme in which epithelial cells acquire mesenchymal traits, enhancing motility, invasiveness and resistance to apoptosis during metastasis.
References
- Therapeutic implications of signaling pathways and tumor microenvironment interactions in esophageal cancer. Biomedicine & Pharmacotherapy (2024).
- ISG15-GRAIL1-CD3 axis influences survival of esophageal adenocarcinoma patients. JCI Insight (2024).
- Mechanisms of esophageal cancer metastasis and treatment progress. Frontiers in Immunology (2023).
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