Related Experiment Video
Updated: Feb 24, 2026
08:35
A Simple and Inexpensive Method for Determining Cold Sensitivity and Adaptation in Mice
Published on: March 17, 2015
15.8K
M-type K+ channels in peripheral nociceptive pathways.
Xiaona Du1,2, Haixia Gao1,2,3, David Jaffe4
1Department of Pharmacology, The Key Laboratory of Neural and Vascular Biology, Ministry of Education, Hebei Medical University, Shijiazhuang, China.
British Journal of Pharmacology
|August 12, 2017
Summary
M channels, a type of potassium channel (KCNQ, Kv7), are key regulators of neuronal excitability in pain pathways. Targeting these channels offers promising therapeutic potential for treating pathological pain and developing new analgesics.
Area of Science:
- Neuroscience
- Pharmacology
- Molecular Biology
Background:
- Pathological pain is characterized by neuronal hyperexcitability.
- Ion channels critically control neuronal excitability and are central to pain signaling.
- Understanding ion channel regulation in pain pathways is crucial for developing effective treatments.
Purpose of the Study:
- To review the expression, function, and modulation of M channels (KCNQ, Kv7) in mammalian pain pathways.
- To highlight the role of M channels in controlling pain signaling, particularly in the peripheral somatosensory system.
- To explore the therapeutic potential of M channels as targets for novel analgesic drugs.
Main Methods:
- Literature review of emerging data on M channels in pain research.
- Analysis of studies investigating the expression and functional roles of KCNQ/Kv7 channels in pain pathways.
- Evaluation of research on the modulation of M channels in physiological and pathophysiological states.
Main Results:
- M channels are increasingly recognized for their significant role in pain signaling.
- These voltage-gated potassium channels are important modulators of excitability in the peripheral somatosensory system.
- Emerging data supports the involvement of M channels in various pain states.
Conclusions:
- M channels (KCNQ, Kv7) are critical regulators of neuronal excitability in pain pathways.
- Their modulation presents a viable strategy for pain management.
- Targeting M channels holds significant therapeutic promise for developing novel analgesics for chronic pain conditions.
More Related Videos
Related Concept Videos
01:12Mechanically-gated Ion Channels
7.9K
Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
7.9K
01:44Nociception
33.4K
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.
33.4K
01:26Voltage-gated Ion Channels
11.4K
Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
11.4K
01:19The Role of Ion Channels in Neuronal Computation
4.0K
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
4.0K
01:24Non-gated Ion Channels
8.4K
Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism....
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism....
8.4K
01:20Pain
1.6K
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...
1.6K