Emerging Promise of Immunotherapy for Alzheimer's Disease: A New Hope for the Development of Alzheimer's Vaccine.
CURRENT TOPICS IN MEDICINAL CHEMISTRY(2020)
Abstract
Background: Alzheimer's disease (AD) is a chronic neurodegenerative disorder and the characteristics of this devastating disorder include the progressive and disabling deficits in the cognitive functions including reasoning, attention, judgment, comprehension, memory, and language. Objective: In this article, we have thcused on the recent progress that has been achieved in the development of an effective AD vaccine. Summary: Currently, available treatment options of AD are limited to deliver short-tenn symptomatic relief only. A number of strategies targeting amyloid-beta (A beta) have been developed in order to treat or prevent AD. In order to exert an effective immune response, an AD vaccine should contain adjuvants that can induce an effective anti-inflammatory T helper 2 (Th2) immune response. AD vaccines should also possess the immimogens which have the capacity to stimulate a protective immune response against various cytotoxic A beta conformers. The induction of an effective vaccine's immune response would necessitate the parallel deliver), of immunogen to dendritic cells (DCs) and their priming to stimulate a Th2-polarized response. The aforesaid immune response is likely to mediate the generation of neutralizing antibodies against the neurotoxic A beta oligomers (A beta Os) and also anti-inflammatory, cytokines, thus preventing the AD-related inflammation. Conclusion: Since there is an age-related decline in the immune functions, therefore vaccines are more likely to prevent AD instead of providing treatment. AD vaccines might be an effective and convenient approach to avoid the treatment-related huge expense.
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Key words
Alzheimer's disease,Amyloid-beta,Vaccine,Immunotherapy,Immunity,Dementia
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