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Related Concept Videos

The Tumor Microenvironment02:17

The Tumor Microenvironment

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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...
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Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
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The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
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Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
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A Mimic of the Tumor Microenvironment: A Simple Method for Generating Enriched Cell Populations and Investigating Intercellular Communication
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Tumor Microenvironment: Cellular Interaction and Metabolic Adaptations.

Monica Benvenuto1,2, Chiara Focaccetti1

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This summary is machine-generated.

The tumor microenvironment (TME) is crucial for cancer development. Understanding the TME aids in developing new cancer therapies.

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Area of Science:

  • Oncology
  • Immunology
  • Cell Biology

Background:

  • The tumor microenvironment (TME) significantly influences cancer progression and treatment response.
  • Key cellular and non-cellular components of the TME include immune cells, fibroblasts, signaling molecules, and extracellular matrix.

Discussion:

  • The complex interactions within the TME can either promote or inhibit tumor growth.
  • Immune cells within the TME, such as T cells and macrophages, play a dual role in cancer immunity.
  • Therapeutic strategies targeting the TME aim to re-educate immune cells or disrupt pro-tumorigenic signaling pathways.

Key Insights:

  • The TME's composition and function are highly heterogeneous across different cancer types and even within individual tumors.
  • Specific TME components, like cancer-associated fibroblasts (CAFs), contribute to tumor growth, metastasis, and immune evasion.
  • Biomarkers associated with TME characteristics can predict patient prognosis and response to therapy.

Outlook:

  • Future research should focus on dissecting the intricate crosstalk between different TME components.
  • Developing novel therapeutic agents that specifically modulate the TME holds promise for overcoming treatment resistance.
  • Personalized medicine approaches incorporating TME profiling will likely improve cancer treatment outcomes.