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Published on: March 7, 2019
On the Role of Platelet-Generated Amyloid Beta Peptides in Certain Amyloidosis Health Complications
Mikhail Inyushin1, Astrid Zayas-Santiago2, Legier Rojas1
1Department of Physiology, Universidad Central del Caribe, Bayamon, Puerto Rico.
Abstract:
As do many other immunity-related blood cells, platelets release antimicrobial peptides that kill bacteria, fungi, and even certain viruses. Here we review the literature suggesting that there is a similarity between the antimicrobials released by other blood cells and the amyloid-related Aβ peptide released by platelets. Analyzing the literature, we also propose that platelet-generated Aβ amyloidosis may be more common than currently recognized. This systemic Aβ from a platelet source may participate in various forms of amyloidosis in pathologies ranging from brain cancer, glaucoma, skin Aβ accumulation, and preeclampsia to Alzheimer's disease and late-stage Parkinson's disease. We also discuss the advantages and disadvantages of specific animal models for studying platelet-related Aβ. This field is undergoing rapid change, as it evaluates competing ideas in the light of new experimental observations. We summarized both in order to clarify the role of platelet-generated Aβ peptides in amyloidosis-related health disorders, which may be helpful to researchers interested in this growing area of investigation.
Insights
Platelets release antimicrobial peptides, similar to amyloid-beta (Aβ) peptides found in other cells. This review suggests platelet-generated Aβ may contribute to various amyloidosis conditions, including Alzheimer's disease.
Area of Science:
- Immunology
- Neuroscience
- Biochemistry
Background:
- Platelets, like other immune cells, release antimicrobial peptides.
- Amyloid-beta (Aβ) peptides are implicated in various diseases.
- The role of platelet-derived Aβ in systemic amyloidosis is under investigation.
Purpose of the Study:
- To review the literature on antimicrobial peptides released by blood cells.
- To explore the similarity between these antimicrobials and platelet-derived Aβ.
- To propose that platelet-generated Aβ amyloidosis is more prevalent than currently recognized.
Main Methods:
- Literature review and analysis.
- Comparison of antimicrobial peptides from different cell types.
- Discussion of animal models for studying platelet-related Aβ.
Main Results:
- Evidence suggests similarity between platelet-derived Aβ and other antimicrobial peptides.
- Platelet-generated Aβ may contribute to pathologies such as Alzheimer's disease, Parkinson's disease, glaucoma, and preeclampsia.
- The systemic Aβ from platelets could play a role in various amyloidosis conditions.
Conclusions:
- Platelet-generated Aβ peptides may be significant contributors to systemic amyloidosis.
- Understanding the role of platelet Aβ is crucial for investigating amyloidosis-related health disorders.
- This research area is rapidly evolving with new experimental findings.
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