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Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

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Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
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NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
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Immune Response Against Viral Pathogens01:29

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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.
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Cytotoxic T Cells-mediated Immune Response01:27

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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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Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

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An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
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Complete antigens possess both immunogenicity and...
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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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Nanomaterials to target immunity.

Romila Manchanda1, Alicia Fernandez-Fernandez2, Sesha Lakshmi Arathi Paluri1

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Nanomedicine enhances immunotherapy by enabling targeted delivery and immune cell modulation for treating diseases like cancer. This approach minimizes side effects and maximizes therapeutic efficacy.

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Area of Science:

  • Immunotherapy
  • Nanomedicine
  • Drug Delivery Systems

Background:

  • Recent advances in immunotherapy offer new ways to treat cancer, cardiovascular, infectious, and autoimmune diseases.
  • Combining nanomedicine with immunotherapy allows for tailored treatments with improved targeting and reduced side effects.

Purpose of the Study:

  • To review current developments in nano-based immunotherapy systems.
  • To highlight how rationally-designed nanosystems can target and modify immune cells for therapeutic benefit.

Main Methods:

  • Review of targeted immuno-engineered nanoformulations.
  • Discussion of commercial formulations and clinical applicability.
  • Analysis of challenges and future directions in nano-immunotherapy.

Main Results:

  • Nanosystems can be rationally designed to target and modify immune cells.
  • Combining nanomedicine with immunotherapy offers customization and enhanced efficacy.
  • Current approaches face challenges but show promise for future therapeutic applications.

Conclusions:

  • Nano-based immunotherapy represents a promising strategy for disease treatment.
  • Targeted nanoformulations can effectively modulate immune responses.
  • Further research is needed to overcome challenges and realize the full clinical potential.