Unraveling the tumor microenvironment: Insights into cancer metastasis and therapeutic strategies

Apr 16, 2024Cancer letters

How the tumor surroundings affect cancer spread and treatment options

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Circadian Biology on OpenScience ↗PubMed ↗DOI ↗

Abstract

The tumor microenvironment (TME) is associated with drug resistance and therapeutic response in cancer.

The TME is a complex ecosystem that influences tumor progression and treatment efficacy.
Mechanisms such as hypoxia, immune evasion, and physical barriers contribute to drug resistance within the TME.
Innovative therapeutic approaches targeting the TME may improve treatment outcomes through strategies like stromal reprogramming and immune modulation.
The heterogeneity of the TME poses challenges for consistent therapeutic responses and may lead to unintended consequences.
Identifying robust biomarkers and developing predictive models are essential for anticipating treatment outcomes in cancer therapy.

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This comprehensive review delves into the pivotal role of the tumor microenvironment (TME) in cancer metastasis and therapeutic response, offering fresh insights into the intricate interplay between cancer cells and their surrounding milieu. The TME, a dynamic ecosystem comprising diverse cellular and acellular elements, not only fosters tumor progression but also profoundly affects the efficacy of conventional and emerging cancer therapies. Through nuanced exploration, this review illuminates the multifaceted nature of the TME, elucidating its capacity to engender drug resistance via mechanisms such as hypoxia, immune evasion, and the establishment of physical barriers to drug delivery. Moreover, it investigates innovative therapeutic approaches aimed at targeting the TME, including stromal reprogramming, immune microenvironment modulation, extracellular matrix (ECM)-targeting agents, and personalized medicine strategies, highlighting their potential to augment treatment outcomes. Furthermore, this review critically evaluates the challenges posed by the complexity and heterogeneity of the TME, which contribute to variable therapeutic responses and potentially unintended consequences. This underscores the need to identify robust biomarkers and advance predictive models to anticipate treatment outcomes, as well as advocate for combination therapies that address multiple facets of the TME. Finally, the review emphasizes the necessity of an interdisciplinary approach and the integration of cutting-edge technologies to unravel the intricacies of the TME, thereby facilitating the development of more effective, adaptable, and personalized cancer treatments. By providing critical insights into the current state of TME research and its implications for the future of oncology, this review highlights the dynamic and evolving landscape of this field.

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Unraveling the tumor microenvironment: Insights into cancer metastasis and therapeutic strategies

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