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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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Cancer Vaccines01:30

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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...
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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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Combination Therapies and Personalized Medicine02:50

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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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The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
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Related Experiment Video

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Bioluminescent Bacterial Imaging In Vivo
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Engineering bacteria for cancer immunotherapy.

Jesse G Zalatan1, Lorenzo Petrini2, Roger Geiger3

  • 1Department of Chemistry, University of Washington, Seattle, WA, United States.

Current Opinion in Biotechnology
|January 14, 2024
PubMed
Summary
This summary is machine-generated.

Engineered bacteria offer a novel approach for cancer therapy, targeting tumors by modulating the tumor microenvironment or delivering therapeutic payloads. Strategies are explored to enable systemic delivery while minimizing inflammation for broader cancer treatment applications.

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Area of Science:

  • Biotechnology and Biomedical Engineering
  • Oncology and Cancer Therapeutics
  • Microbiology and Infectious Diseases

Background:

  • Bacterial therapeutics are emerging as a promising strategy for cancer treatment.
  • Engineered bacteria can be designed to modulate the tumor microenvironment or deliver therapeutic payloads.
  • Systemic delivery of bacteria faces challenges, including potential widespread inflammation, especially for tumors not accessible via direct injection.

Purpose of the Study:

  • To address the challenge of systemic delivery of bacterial therapeutics for cancer treatment.
  • To explore strategies for modulating the tumor microenvironment using engineered bacteria.
  • To investigate methods for selective payload delivery and biocontainment to ensure safety in cancer therapy.

Main Methods:

  • Review and conceptualization of strategies for systemic bacterial delivery.
  • Exploration of engineered bacterial systems for targeted payload release.
  • Development of biocontainment approaches for safe application of bacterial therapeutics.

Main Results:

  • Identified potential strategies to overcome the challenge of systemic bacterial delivery.
  • Outlined approaches for specific therapeutic payload delivery by engineered bacteria.
  • Proposed methods for ensuring biocontainment and safety of bacterial therapeutics.

Conclusions:

  • The development of safe and effective systemic bacterial therapeutics is feasible.
  • These strategies can enable broader application of bacterial cancer therapies.
  • This research paves the way for cost-effective, next-generation cancer therapeutics.