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Related Concept Videos

Pain01:20

Pain

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Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
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Nociception01:44

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Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
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Analgesia and Pain Management01:25

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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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Anchoring Junctions01:03

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Anchoring junctions are multiprotein complexes that help cells connect to other cells and the extracellular matrix. Anchoring junctions are present on the lateral and basal surfaces of cells, providing strong and flexible connections. Focal adhesions are often formed due to cell interactions with the ECM substrata, which initiate signal transduction via kinase cascades and other mechanisms. Together, they provide stability and tissue integrity. There are three types of anchoring junctions:...
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In the plasma membrane, the lipids forming the bilayer can also act as an anchor to tether proteins to the membrane. The three main types of lipid anchors found in eukaryotes are – prenyl groups, fatty acyl groups, and glycosylphosphatidylinositol or GPI groups. Prenyl and fatty acyl groups act as anchors on the cytosolic surface of the membrane, whereas GPI anchors proteins on the extracellular side.
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GPI-anchoring is a post-translational, reversible protein modification that is ubiquitous in eukaryotes. Such proteins are primarily present on the exoplasmic leaflet of the plasma membrane.
GPI-anchor structure
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Development of Recombinant Proteins to Treat Chronic Pain
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How anchoring proteins shape pain.

Michael J M Fischer1, Peter A McNaughton2

  • 1Institute of Physiology and Pathophysiology, FAU Erlangen-Nürnberg, Germany.

Pharmacology & Therapeutics
|April 15, 2014
PubMed
Summary
This summary is machine-generated.

Anchoring proteins, like A kinase anchoring proteins (AKAPs), organize signaling molecules to enhance cellular responses. This review focuses on their role in pain signaling pathways within sensory neurons.

Keywords:
AKAPAccessory proteinPainScaffolding proteinSensitisation

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Area of Science:

  • Cellular biology
  • Neuroscience
  • Molecular signaling

Background:

  • Cellular responses to stimuli involve complex intracellular signaling cascades.
  • Extracellular mediators trigger these cascades via membrane receptors.
  • Signaling molecule proximity, facilitated by anchoring proteins, enhances signaling speed and precision.

Purpose of the Study:

  • To review the role of anchoring proteins in pain signaling.
  • To highlight key anchoring proteins and their ion channel targets in nociceptors.

Main Methods:

  • Literature review of studies on anchoring proteins and pain signaling.
  • Focus on A kinase anchoring proteins (AKAPs) and their associated enzymes and targets.
  • Analysis of ion channel targets in primary sensory neurons.

Main Results:

  • A kinase anchoring proteins (AKAPs) are crucial for organizing signaling complexes.
  • AKAPs bind various enzymes beyond Protein Kinase A, influencing diverse signaling pathways.
  • Specific AKAPs and their ion channel targets are identified in nociceptors.

Conclusions:

  • Anchoring proteins play a vital role in modulating pain signaling.
  • Understanding AKAP-ion channel interactions in nociceptors is key to pain research.
  • AKAPs represent potential targets for pain therapeutics.