Dominic Stone
Muscles provide protection in a number of ways. For example, skeletal muscles protect the vital organs in the body, and they also help us to maintain posture and balance. Muscles also provide protection during microbial infection by activating innate immune response pathways.
| Characteristics | Values |
|---|---|
| Protect the vital organs in the body | e.g. heart, lungs |
| Provide protection during microbial infection | by activating innate immune response pathways |
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What You'll Learn
Muscles protect the body's vital organs
Muscles also provide protection during microbial infection by activating innate immune response pathways. This has been observed in Drosophila and zebrafish. In the case of bacterial infection, the Drosophila innate immune system induces the expression of a specific set of AMPs directed against the infecting bacteria by primarily activating either the Toll or the immune deficiency (Imd) pathway.
In most muscle mutants, AMPs induction was diminished compared with wild-type flies post-infection. However, basal expression of AMPs was comparable to that of naïve wild-type flies.
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Muscular disorders can cause paralysis
Muscles provide protection in a number of ways. Firstly, skeletal muscles enable humans to move and perform daily activities. They also play an essential role in respiratory mechanics and help maintain posture and balance. They even protect the vital organs in the body. Muscles also provide protection during microbial infection by activating innate immune response pathways in Drosophila and zebrafish.
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Muscles provide protection during microbial infection
Upon bacterial infection, the Drosophila innate immune system induces the expression of a specific set of AMPs (antimicrobial peptides) directed against the infecting bacteria by primarily activating either the Toll or the immune deficiency (Imd) pathway. AMPs are produced by IFMs (indirect flight muscles) through the activation of canonical immune signalling pathways. These IFM-produced AMPs are essential for the survival of flies upon infection.
IFM-mediated immune response is essential for survival upon bacterial infection. In a study, male flies infected with Salmonella or Bacillus subtilis had a significantly lower survival rate than uninfected flies.
In addition to their role in microbial infection, skeletal muscles also play a protective role in the body by providing physical protection to vital organs.
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Muscles can be activated to induce an innate immune response
In addition to their role in the immune system, skeletal muscles also play a protective role in the body by helping to maintain posture and balance and by shielding vital organs.
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Muscles can protect against bacterial infection
In addition, muscles can provide protection during microbial infection by activating innate immune response pathways. In the case of bacterial infection, the innate immune system induces the expression of a specific set of antimicrobial peptides (AMPs) directed against the infecting bacteria. AMPs are produced by muscles through the activation of canonical immune signalling pathways, and these AMPs are essential for survival upon infection.
Research on flies and zebrafish has shown that muscle mutants have a diminished ability to induce AMPs upon infection compared to wild-type flies, indicating that muscles play a crucial role in protecting against bacterial infection.
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Frequently asked questions
Muscles protect the body by providing a physical barrier around vital organs.
Muscles can provide protection during microbial infection by activating innate immune response pathways.
When muscles don't function properly, it can result in various medical conditions such as myopathy, paralysis, myasthenia gravis, urinary and/or bowel incontinence, ataxia, weakness, and tremors.
