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Related Concept Videos

Van de Graaff Generator01:15

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Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
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From lightning during thunderstorms to electronic devices, the phenomenon of electromagnetism is all around us. The electromagnetic force is one of the four fundamental forces of nature. It has been known to humanity in various forms for thousands of years. For example, the ancient Greek philosopher Thales of Miletus recorded his experiments on static electricity using amber and fur in the sixth century BC.
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An interesting property of a conductor in static equilibrium is that extra charges on the conductor end up on its outer surface, regardless of where they originate. Consider a hollow metallic conductor with a uniform surface charge density. Since the conductor itself is in electrostatic equilibrium, there should not be any electric field inside the conductor. Now, assume a Gaussian surface enclosing the hollow portion. Applying Gauss's law, the inner surface of the hollow conductor will not...
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The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
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Charging CAR by electrostatic power.

Haopeng Wang1,2, Yuwei Huang1,3, Chenqi Xu1,4,5

  • 1School of Life Science and Technology, ShanghaiTech University, Shanghai, China.

Immunological Reviews
|June 27, 2023
PubMed
Summary
This summary is machine-generated.

Electrostatic interactions are key to how T cell receptors (TCRs) and chimeric antigen receptors (CARs) function in cancer therapy. Understanding these forces can improve CAR-T cell therapy design for better cancer treatment outcomes.

Keywords:
CAR signalingCAR-T cell therapyantigen receptorelectrostatic interactiontonic signal

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Area of Science:

  • Immunology
  • Molecular Biology
  • Biophysics

Background:

  • Chimeric antigen receptor (CAR)-T cell therapy shows promise for cancer treatment by using synthetic receptors to activate T cells.
  • Current CAR designs are less robust than natural T cell receptors (TCRs), which utilize specific molecular interactions for high sensitivity and efficiency.
  • Electrostatic forces are crucial for molecular interactions and play a significant role in TCR signaling.

Purpose of the Study:

  • To review the role of electrostatic interactions in natural (TCR) and synthetic (CAR) immune receptor signaling.
  • To understand how electrostatic charge regulates TCR and CAR signaling events.
  • To highlight strategies for engineering next-generation CAR-T cell therapies using charge-based interactions.

Main Methods:

  • Literature review of recent findings on electrostatic interactions in immune receptor signaling.
  • Analysis of the role of electrostatic forces in CAR clustering and effector molecule recruitment.
  • Exploration of charge-based interaction strategies for CAR engineering.

Main Results:

  • Electrostatic interactions are critical for the sensitivity and efficiency of TCR signaling.
  • These forces influence CAR clustering and the recruitment of effector molecules, impacting CAR-T cell function.
  • Leveraging electrostatic principles can enhance CAR design and efficacy.

Conclusions:

  • Understanding electrostatic interactions is vital for improving CAR-T cell therapy.
  • Engineering CARs with optimized charge-based properties can lead to more effective cancer treatments.
  • This knowledge facilitates the development of next-generation immunotherapies.