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Polymorphonuclear leukocyte lysosome activities and lymphocyte transformation in multiple sclerosis and some other
Abstract:
The role of PMNL lysosomes was studied in some lesions of the central nervous system with speical regard to multiple sclerosis patients. The significant decrease of acid hydrolases was observed in multiple sclerosis (MS) peripheral blood PMNL lysosomal granula and, in parallel, the increase of lysosome proteins mitogenic potency. The other lesions of the central nervous system such as apoplexy, brain tumors, brain trauma and epilepsy have not shown the MS-like activities of PMNLs. The role of PMNLs in pathogenesis of MS and in the stimulation of immunocompetent cells is suggested.
Insights
Polymorphonuclear leukocyte (PMNL) lysosomes show decreased acid hydrolases in multiple sclerosis (MS) patients. This suggests PMNLs play a role in MS pathogenesis and immune cell stimulation.
Area of Science:
- Neuroimmunology
- Cellular Biology
- Pathology
Background:
- Polymorphonuclear leukocytes (PMNLs) are key immune cells.
- Lysosomes within PMNLs contain various enzymes.
- Dysfunction in PMNLs is implicated in autoimmune diseases.
Purpose of the Study:
- To investigate the role of PMNL lysosomes in central nervous system (CNS) lesions.
- To specifically examine PMNL lysosomal activity in multiple sclerosis (MS) patients.
- To compare PMNL activity in MS with other CNS conditions.
Main Methods:
- Analysis of peripheral blood PMNL lysosomal granules.
- Assay of acid hydrolase activity in PMNLs.
- Evaluation of lysosome protein mitogenic potency.
Main Results:
- A significant decrease in acid hydrolases was observed in peripheral blood PMNL lysosomal granules of MS patients.
- An increase in the mitogenic potency of lysosome proteins was noted in MS patients.
- Other CNS lesions (apoplexy, brain tumors, brain trauma, epilepsy) did not exhibit similar MS-like PMNL activities.
Conclusions:
- PMNL lysosomes exhibit distinct alterations in multiple sclerosis.
- These findings suggest a potential role for PMNLs in MS pathogenesis.
- PMNLs may contribute to the stimulation of immunocompetent cells in MS.