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Published on: November 5, 2021
The role of cholinesterases in chagas disease
H F Seabra1, A C Campello2, E F G Chagas3
1Department of Clinical Pathology, Marília Medical School, Marília, SP 17519-030, Brazil.
Insights
Cholinesterases, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), play roles in inflammation. In Chagas disease, AChE activity was unchanged, while BChE levels influenced AChE activity.
Area of Science:
- Biochemistry
- Immunology
- Neuroscience
Background:
- Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) are enzymes that hydrolyze acetylcholine (ACh).
- Cholinesterases are implicated in immune responses and inflammation beyond their role in neurotransmission.
- Previous research indicated decreased BChE levels in chronic Chagas disease patients with mega syndromes.
Purpose of the Study:
- To investigate the activity of AChE in Chagas disease patients.
- To determine the influence of BChE levels on AChE activity in Chagas disease.
Main Methods:
- Enzyme activity assays for AChE.
- Analysis of AChE activity in relation to the 1057C>A ACHE polymorphism.
- Correlation analysis between BChE levels and AChE activity.
Main Results:
- AChE activity did not differ between Chagas disease patients and controls.
- The presence of the 1057C>A ACHE polymorphism did not affect AChE activity.
- Elevated BChE levels were found to modestly influence AChE activity in Chagas disease patients.
Conclusions:
- AChE activity is not altered in Chagas disease, irrespective of a specific genetic polymorphism.
- BChE levels show a modest influence on AChE activity in the context of Chagas disease.
- These findings contribute to understanding the non-classical roles of cholinesterases in disease pathology.
Abstract:
Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) hydrolyze acetylcholine (ACh) in neural synaptic clefts and are primarily found in erythrocytes and blood plasma, respectively. Besides inactivating ACh, cholinesterases may play a non-classical role in inflammation and in immune response. In a previous study, we reported that BChE levels were decreased in chronic Chagas disease patients presenting the mega syndromes. In this series, we reported that: i) the activity of AChE did not differ between patients and controls, irrespective of the presence or not of the 1057C > A ACHE polymorphism, and ii) the increased BChE levels modestly influenced the AChE activity in Chagas disease.
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