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Related Concept Videos

Tumor Immunotherapy01:27

Tumor Immunotherapy

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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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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
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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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Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
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Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

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Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
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Thermostabilization, Expression, Purification, and Crystallization of the Human Serotonin Transporter Bound to S-citalopram
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Targeting serotonin transporter boosts tumor-fighting T cells.

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Autocrine serotonin receptor activation on tumor-infiltrating CD8+ T cells boosts antitumor immunity. Repurposing depression drugs like SSRIs may offer novel cancer immunotherapy strategies.

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Area of Science:

  • Immunology
  • Neuroscience
  • Oncology

Background:

  • Serotonin plays a role in immune responses.
  • The function of serotonin signaling in the tumor microenvironment is not fully understood.

Purpose of the Study:

  • To investigate the role of serotonin signaling in antitumor immunity.
  • To explore the potential of targeting serotonin pathways for cancer therapy.

Main Methods:

  • Analysis of tumor-infiltrating CD8+ T cells.
  • Assessment of serotonin receptor activation.
  • Evaluation of antitumor immune responses.

Main Results:

  • Autocrine activation of serotonin receptors on CD8+ T cells enhances their antitumor function.
  • Modulating serotonin signaling in the tumor microenvironment improves immune-mediated tumor rejection.

Conclusions:

  • Serotonin signaling is a critical component of antitumor immunity.
  • Targeting serotonin pathways, potentially with repurposed drugs, represents a promising avenue for cancer immunotherapy.