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Related Concept Videos

Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

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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.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
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Infection01:20

Infection

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When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
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Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

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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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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...
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Inflammatory Response01:28

Inflammatory Response

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An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
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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.
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T Cell Types and Functions01:24

T Cell Types and Functions

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Related Experiment Video

Updated: Jul 1, 2025

Optimized Protocols for Mycobacterium leprae Strain Management: Frozen Stock Preservation and Maintenance in Athymic Nude Mice
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Leprosy: treatment, prevention, immune response and gene function.

Xiang Li1, Yun Ma2, Guoli Li3

  • 1Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China.

Frontiers in Immunology
|March 5, 2024
PubMed
Summary

Multidrug therapy struggles to eradicate leprosy, and drug resistance is a growing concern. Understanding the genetic and immune factors influencing leprosy is crucial for developing new prevention and treatment strategies.

Keywords:
MDTimmune cellsleprosyprophylaxisrifapentinesusceptibility gene

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Immunometabolic Circuits in Infection for Advancing Host Directed Therapies
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Immunometabolic Circuits in Infection for Advancing Host Directed Therapies

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Immunometabolic Circuits in Infection for Advancing Host Directed Therapies
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Immunometabolic Circuits in Infection for Advancing Host Directed Therapies

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Area of Science:

  • Infectious Diseases
  • Immunology
  • Genetics

Background:

  • Leprosy incidence remains stable despite dramatic case reduction, suggesting multidrug therapy limitations.
  • Emergence of rifampicin-resistant strains compromises treatment effectiveness.
  • Existing immunoprophylaxis (BCG, LepVax, MiP) faces challenges.

Purpose of the Study:

  • To review current research on leprosy treatment, prevention, immunity, and gene function.
  • To elucidate the impact of immune processes and genetic regulation on leprosy pathogenesis.
  • To provide a foundation for developing effective leprosy elimination strategies.

Main Methods:

  • Literature review of recent advancements in leprosy research.
  • Analysis of studies focusing on host genetics and immune responses.
  • Synthesis of information on treatment efficacy and vaccine development.

Main Results:

  • Multidrug therapy's limitations and the threat of drug resistance are highlighted.
  • The significant role of host genetics and immune processes in leprosy pathogenesis is recognized.
  • Current vaccine strategies and their potential are discussed.

Conclusions:

  • Further research into immune processes and genetic regulation is essential for understanding leprosy.
  • Developing novel treatment and prevention strategies requires a comprehensive approach.
  • Elucidating these factors will aid in achieving leprosy elimination goals.