Injecting Large volume of Nanoparticles

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SUMMARY

The discussion centers on the interaction of nanoparticles with the human immune system (HIS) when injected in large volumes for blood filtration. It highlights that the immune response varies significantly depending on the type of nanoparticle, such as liposomes versus carbon nanotubes. The immune system typically reacts to specific patterns, particularly polysaccharides and antigens associated with pathogens. However, nanoparticles designed to mimic the body's own cell surface proteins may evade immune detection, similar to how cancer cells avoid immune responses.

PREREQUISITES
  • Understanding of nanoparticle types, specifically liposomes and carbon nanotubes.
  • Knowledge of human immune system mechanisms, particularly the roles of T cells, B cells, and white blood cells (WBCs).
  • Familiarity with antigen-antibody interactions and immune system recognition.
  • Basic concepts of biocompatibility and how engineered materials interact with biological systems.
NEXT STEPS
  • Research the properties and applications of liposomes in drug delivery systems.
  • Explore the mechanisms of immune evasion by cancer cells and their relevance to nanoparticle design.
  • Study the role of polysaccharides in immune responses and their implications for vaccine development.
  • Investigate the design of nanoparticles that mimic cell surface proteins to enhance biocompatibility.
USEFUL FOR

This discussion is beneficial for biomedical researchers, immunologists, and materials scientists involved in nanoparticle development and applications in medicine.

ceaweaw
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Supposing that our body is injected with a large volume of nanoparticles carrying some specific agents to filter out our blood, I don't understand how our body HIS (human immune system) can ignore its main task to accept the agents as friends, especially after these particles succeed, where will they go ?

http://pubs.acs.org/doi/abs/10.1021/bm900266r
 
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The interaction of nanoparticles with any biological system is going to be different depending on the particle in question. A liposome isn't going to be reacted to the same way as a carbon nanotube for instance.
 
hmm well the immune system has specific inclinations and rules it follows. For example it won't ignore poly saccharides on anything, often associated with bacteria cell walls, and also unfortunately found in some vaccines causing allergical reactions. It doesn't like antigens with specific patterns found with viruses. But if you made molecules that are more similar to the body's own cell surface proteins, it might work.

This is how cancer evades the immune system. Even when the immune system go after cancer cells it's the non specific WBCs and not your T and B cells that do the job.
 

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