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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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Trans-vivo Delayed Type Hypersensitivity Assay for Antigen Specific Regulation
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Tau Immunotherapy.

Einar M Sigurdsson1

  • 1Departments of Neuroscience and Physiology, and Psychiatry, New York University School of Medicine, New York, N.Y., USA.

Neuro-Degenerative Diseases
|November 10, 2015
PubMed
Summary
This summary is machine-generated.

Tau immunotherapy shows promise for Alzheimer's disease and other tauopathies by targeting tau pathology, which correlates better with dementia than amyloid-beta. Further research is needed to optimize therapeutic antibody strategies for improved clinical efficacy and safety.

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Area of Science:

  • Neuroscience
  • Immunology
  • Pharmacology

Background:

  • Tau immunotherapy has progressed from early studies to ongoing Phase I clinical trials for Alzheimer's disease and tauopathies.
  • Tau pathology correlates more strongly with dementia severity than amyloid-beta pathology, suggesting tau clearance may be a more effective therapeutic strategy in later disease stages.

Purpose of the Study:

  • To review the current state of tau immunotherapy, including target epitopes, mechanisms of action, and potential toxicities.
  • To discuss the complexities of tau antibody interactions (extracellular vs. intracellular) and their implications for therapeutic efficacy and safety.
  • To highlight the development of antibody-derived imaging probes for improved diagnostics and therapeutic guidance.

Main Methods:

  • Review of existing proof-of-concept studies and clinical trial data on tau immunotherapy.
  • Analysis of the relationship between tau pathology and cognitive decline in neurodegenerative diseases.
  • Discussion of the mechanisms of action and potential challenges associated with tau antibodies.

Main Results:

  • Tau immunotherapy is advancing, with active and passive antibody trials underway for Alzheimer's disease and related disorders.
  • Understanding tau antibody interactions, including uptake and targeting (extracellular vs. intracellular), is crucial but not fully defined.
  • Antibody-derived imaging probes offer enhanced specificity for pathological tau epitopes compared to traditional methods.

Conclusions:

  • Tau immunotherapy holds significant potential for treating tauopathies, possibly offering greater clinical benefit than amyloid-beta targeting in advanced disease stages.
  • Further research is essential to clarify the optimal targets, mechanisms, and safety profiles of tau immunotherapies.
  • Advancements in antibody technology and diagnostics are expected to guide the selection of the most effective and safest therapeutic antibodies.