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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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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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Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
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Targeted Cancer Therapies02:57

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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.
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Related Experiment Video

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Advances in Human Induced Pluripotent Stem Cell-Derived Chimeric Antigen Receptor-Expressing Natural Killer Cells
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NK Cell-Based Immunotherapy for Hematological Malignancies.

Simona Sivori1,2, Raffaella Meazza3, Concetta Quintarelli4,5

  • 1Department of Experimental Medicine, University of Genoa, 16132 Genoa, Italy.

Journal of Clinical Medicine
|October 19, 2019
PubMed
Summary

Natural killer (NK) cells are crucial for innate immunity and cancer immunotherapy. Novel strategies like cell infusion and engineering show promise for treating hematological malignancies.

Keywords:
CAR-NK cellsHLA class INK cell alloreactivityNK cellsacute leukemiacytokineshematopoietic stem cell transplantationimmunotherapykiller immunoglobulin-like receptorsreceptors

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Area of Science:

  • Immunology
  • Oncology
  • Cell Biology

Background:

  • Natural killer (NK) lymphocytes are key components of the innate immune system.
  • NK cells are vital effector cells in cancer immunotherapy, especially for hematological malignancies.
  • Growing knowledge of NK cell biology drives interest in NK cell-based antitumor therapies.

Purpose of the Study:

  • To review the potential of NK cells in cancer immunotherapy.
  • To discuss advancements in NK cell manipulation and application for hematological cancers.
  • To explore future directions in NK cell-based therapeutic strategies.

Main Methods:

  • Review of current research on NK cell biology and immunotherapy.
  • Analysis of clinical outcomes from NK cell infusion and adoptive transfer.
  • Discussion of cytokine and antibody-based strategies for NK cell optimization.
  • Exploration of chimeric antigen receptor (CAR) engineered NK cells.

Main Results:

  • Selective T cell and B cell depletion in HLA-haploidentical transplantation improved outcomes in pediatric acute leukemia.
  • Adoptive transfer of third-party NK cells demonstrated efficacy in myeloid malignancies.
  • Cytokine and antibody strategies show potential for enhancing NK cell activity.
  • CAR-engineered NK cells offer a promising avenue for "off-the-shelf" allogeneic therapies.

Conclusions:

  • NK cell-based therapies are highly promising for hematological malignancies.
  • Graft manipulation and adoptive transfer strategies are improving patient outcomes.
  • Future research into CAR-NK cells could lead to widely applicable cancer treatments.