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Related Concept Videos

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.
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...
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Immune Surveillance by NK Cells and Phagocytes01:25

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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.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
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Related Experiment Video

Updated: Oct 8, 2025

Expansion, Purification, and Functional Assessment of Human Peripheral Blood NK Cells
10:44

Expansion, Purification, and Functional Assessment of Human Peripheral Blood NK Cells

Published on: February 2, 2011

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Advances in NK cell production.

Fang Fang1,2,3,4,5, Siqi Xie2,3,4, Minhua Chen2,3,4

  • 1The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China.

Cellular & Molecular Immunology
|January 5, 2022
PubMed
Summary

Natural killer (NK) cell immunotherapy shows promise for cancer treatment. Research focuses on expanding NK cells from various sources and enhancing their cancer-killing abilities for future therapies.

Keywords:
Genetic manipulationNK cell linesNK cellsPBMCsUCBiPSCs

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A Novel Feeder-free System for Mass Production of Murine Natural Killer Cells In Vitro
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Area of Science:

  • Immunology
  • Cancer Biology
  • Biotechnology

Background:

  • Natural killer (NK) cells offer a promising avenue for cancer immunotherapy due to their MHC-independent cancer cell recognition and direct cytotoxic activity.
  • Unlike T cells, NK cells do not require prior sensitization to eliminate target cells, making them a potent component of the innate immune system.

Purpose of the Study:

  • To review recent advancements in NK cell expansion strategies for immunotherapy.
  • To discuss the use of various cellular sources and genetic modifications for enhancing NK cell function.
  • To explore large-scale, automated, and GMP-controlled expansion systems for clinical applications.

Main Methods:

  • Summarizing recent literature on NK cell expansion techniques.
  • Analyzing different cellular sources for NK cell generation, including PBMCs, UCB, iPSCs, and NK cell lines.
  • Investigating methods for enhancing NK cell proliferation and cytotoxicity, including cytokine-antibody fusions, feeder cells, membrane particles, and genetic engineering.

Main Results:

  • Multiple strategies exist for expanding NK cells with high purity and cytotoxicity.
  • Various cell sources can be utilized for NK cell generation, each with specific advantages.
  • Genetic modification and optimized expansion systems are crucial for developing effective NK cell-based therapies.

Conclusions:

  • Significant progress has been made in developing methods for large-scale NK cell expansion and functional enhancement.
  • Automated, GMP-compliant systems are essential for translating NK cell immunotherapy into clinical practice.
  • Future NK cell-based immunotherapy products hold great potential for diverse cancer treatments.