The Role of Tumor-Derived Vesicles in the Regulation of Antitumor Immunity

V M Ukrainskaya1, Y P Rubtsov1, V D Knorre1

  • 1M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997 Russia.

Acta Naturae
|January 30, 2020
PubMed

Insights

Tumor-derived vesicles (TDVs) mediate communication between cancer and immune cells, often suppressing anti-tumor immunity. Further research into TDV heterogeneity and function could lead to new cancer therapies.

Area of Science:

  • Immunology
  • Cancer Biology
  • Cell Biology

Background:

  • Tumor-derived vesicles (TDVs) are crucial mediators of intercellular communication in the tumor microenvironment.
  • TDVs play a significant role in modulating immune responses, particularly T cell activity.
  • Recent advancements have deepened our understanding of vesicle-mediated communication over the past 15 years.

Purpose of the Study:

  • To provide a comprehensive review of the current knowledge on TDVs' function in tumor-immune cell crosstalk.
  • To elucidate the structure, biogenesis, and major functions of TDVs.
  • To focus on the mechanisms by which TDVs suppress or activate CD4+ and CD8+ T cells.

Main Methods:

  • Literature review and synthesis of existing research on TDVs.
  • Analysis of studies characterizing TDV structure, biogenesis, and function.
  • Focus on research detailing TDV interactions with T cells (CD4+ and CD8+).

Main Results:

  • TDVs are key players in suppressing anti-tumor immunity.
  • TDVs can either suppress or activate CD4+ and CD8+ T cells through various mechanisms.
  • Significant progress has been made in understanding TDV-mediated intercellular communication.

Conclusions:

  • Despite progress, knowledge gaps remain regarding TDV heterogeneity, isolation, uptake, and mRNA roles.
  • TDVs are critical regulators of the immune response within the tumor microenvironment.
  • Emerging strategies targeting TDV inhibition in tumors show promise for novel cancer therapies.

Related Concept Videos

Tumor Immunotherapy01:27

Tumor Immunotherapy

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.
1.7K
The Tumor Microenvironment02:17

The Tumor Microenvironment

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...
7.5K
Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

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.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
6.3K
Cancer Vaccines01:30

Cancer Vaccines

Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
882
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
1.6K
Overview of Secretory Vesicles01:33

Overview of Secretory Vesicles

Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
9.2K