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Porins and lipopolysaccharide induce apoptosis in human spermatozoa
F Gorga1, M Galdiero, E Buommino
1Istituto di Microbiologia, Facoltà di Medicina e Chirurgia, Seconda Università degli Studi di Napoli, 80138 Napoli, Italy. francesco.galdiero@unina2.it
Abstract:
Treatment of human spermatozoa with porins or lipopolysaccharide (LPS) increases spontaneous apoptosis in these cells. Porins and LPS were extracted from Salmonella enterica serovar Typhimurium and Pasteurella multocida and were mixed with human spermatozoa for detection of levels of apoptosis.
Insights
Treatment of human sperm with bacterial porins or lipopolysaccharide (LPS) significantly increases spontaneous apoptosis. This study investigated the impact of these bacterial components on sperm cell death.
Area of Science:
- Reproductive biology
- Microbiology
- Cellular biology
Background:
- Bacterial components like porins and lipopolysaccharide (LPS) can influence mammalian cell functions.
- Apoptosis, or programmed cell death, is a critical process in various cell types, including spermatozoa.
Purpose of the Study:
- To investigate the effect of bacterial porins and lipopolysaccharide (LPS) on spontaneous apoptosis in human spermatozoa.
- To determine if specific bacterial components can induce programmed cell death in sperm cells.
Main Methods:
- Porins and LPS were isolated from Salmonella enterica serovar Typhimurium and Pasteurella multocida.
- Human spermatozoa were treated with the extracted porins and LPS.
- Levels of apoptosis in the treated spermatozoa were measured to assess the impact.
Main Results:
- Treatment of human spermatozoa with porins resulted in increased spontaneous apoptosis.
- Exposure to lipopolysaccharide (LPS) also led to a significant rise in spontaneous apoptosis in human spermatozoa.
- The findings indicate that these bacterial components can trigger programmed cell death in sperm.
Conclusions:
- Bacterial porins and LPS can induce apoptosis in human spermatozoa.
- This interaction highlights a potential mechanism by which bacterial infections could affect male fertility.
- Further research is warranted to explore the implications for reproductive health.