Ca2+ -activated K+ (BK) channel inactivation contributes to spike broadening during repetitive firing in the rat lateral amygdala

Journal of Physiology

Volumn 552, Issue 2, 2003, Pages 483-497

  Faber, E S Louise ^a,b   Sah, Pankaj ^a,b  

^a UNIVERSITY OF QUEENSLAND   (Australia)

^b Biology and Environment   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

4 AMINOPYRIDINE; CALCIUM ACTIVATED POTASSIUM CHANNEL; CALCIUM ION; DENDROTOXIN; POTASSIUM ION; VOLTAGE GATED POTASSIUM CHANNEL; FAMPRIDINE; LARGE CONDUCTANCE CALCIUM ACTIVATED POTASSIUM CHANNEL; VOLTAGE GATED CALCIUM CHANNEL; CALCIUM; POTASSIUM CHANNEL BLOCKING AGENT; SNAKE VENOM;

AMYGDALOID NUCLEUS; ANIMAL CELL; ANIMAL TISSUE; ARTICLE; BRAIN NERVE CELL; CONCENTRATION RESPONSE; CONTROLLED STUDY; HYPERPOLARIZATION; INTRACELLULAR RECORDING; NERVE PROJECTION; NONHUMAN; PRIORITY JOURNAL; RAT; SPIKE WAVE; SYNAPTIC TRANSMISSION; TISSUE SLICE; BRAIN SLICE; CALCIUM TRANSPORT; FIRING RATE; FREQUENCY MODULATION; IN VITRO STUDY; LATERAL AMYGDALA; NERVE POTENTIAL; POTASSIUM CURRENT; SYNAPSE; ACTION POTENTIAL; ANIMAL; CELL MEMBRANE POTENTIAL; DRUG EFFECT; ELECTROPHYSIOLOGY; METABOLISM; PATCH CLAMP; PHYSIOLOGY;

ACTION POTENTIALS; AMYGDALA; ANIMALS; CALCIUM; ELAPID VENOMS; ELECTROPHYSIOLOGY; MEMBRANE POTENTIALS; PATCH-CLAMP TECHNIQUES; POTASSIUM CHANNEL BLOCKERS; POTASSIUM CHANNELS, CALCIUM-ACTIVATED; RATS; SYNAPSES;

EID: 0142150039     PISSN: 00223751     EISSN: None     Source Type: Journal    
DOI: 10.1113/jphysiol.2003.050120     Document Type: Article

References (49)

1. Aldrich RW, Getting PA & Thompson SH (1979). Mechanism of frequency-dependent broadening of molluscan neuron soma spikes. J Physiol 291, 531-544.
2. Andreasen M & Lambert JD (1995). Regenerative properties of pyramidal cell dendrites in area CA1 of the rat hippocampus. J Physiol 483, 421-441.
3. Augustine GJ (1990). Regulation of transmitter release at the squid giant synapse by presynaptic delayed rectifier potassium current. J Physiol 431, 343-364.
4. Bekkers JM (2000). Distribution and activation of voltage-gated potassium channels in cell-attached and outside-out patches from large layer 5 cortical pyramidal neurons of the rat. J Physiol 525, 611-620.
5. Bekkers JM & Delaney AJ (2001). Modulation of excitability by alpha-dendrotoxin-sensitive potassium channels in neocortical pyramidal neurons. J Neurosci 21, 6553-6560.
6. + channels. Ann N Y Acad Sci 868, 233-285.
7. Connors BW & Gutnick MJ (1990). Intrinsic firing patterns of diverse neocortical neurons. Trends Neurosci 13, 99-103.
8. + channels. J Gen Physiol 109, 647-673.
9. Davis M & Whalen PJ (2001). The amygdala: vigilance and emotion. Mol Psychiatry 6, 13-34.
10. Ding JP & Lingle CJ (2002). Steady-state and closed-state inactivation properties of inactivating BK channels. Biophys J 82, 2448-2465.
11. Faber ESL, Callister RJ & Sah P (2001). Morphological and electrophysiological properties of principal neurons in the rat lateral amygdala in vitro. J Neurophysiol 85, 714-723.
12. Faber ESL & Sah P (2002). Physiological role of calcium-activated potassium currents in the rat lateral amygdala. J Neurosci 22, 1618-1628.
13. + channels in hippocampal mossy fiber boutons. Neuron 28, 927-939.
14. Ghosh A & Greenberg ME (1995). Calcium signalling in neurons: molecular mechanisms and cellular consequences. Science 268, 239-246.
15. + channel inactivation, spike broadening, and after-hyperpolarization in Kvbeta1.1-deficient mice with impaired learning. Learn Mem 5, 257-273.
16. Hausser M, Spruston N & Stuart GJ (2000). Diversity and dynamics of dendritic signaling. Science 290, 739-744.
17. + (BK) channels in rat hippocampal neurones produced by pore block from an associated particle. J Physiol 508, 721-734.
18. Hodgkin AL (1976). Chance and design in electrophysiology: an informal account of certain experiments on nerve carried out between 1934 and 1952. In The Pursuit of Nature. Informal Essays on the History of Physiology, pp. 1-22. Cambridge University Press, Cambridge.
19. + channel regulation of signal propagation in dendrites of hippocampal pyramidal neurons. Nature 387, 869-875.
20. + channels in glutamatergic hippocampal terminals and their role in spike repolarization and regulation of transmitter release. J Neurosci 21, 9585-9597.
21. Jackson MB, Konnerth A & Augustine GJ (1991). Action potential broadening and frequency-dependent facilitation of calcium signals in pituitary nerve terminals. Proc Natl Acad Sci USA 888, 380-384.
22. Jerng HH, Shahidullah M & Covarrubias M (1999). Inactivation gating of Kv4 potassium channels: molecular interactions involving the inner vestibule of the pore. J Gen Physiol 113, 641-660.
23. Jung HY, Mickus T & Spruston N (1997). Prolonged sodium channel inactivation contributes contributes to dendritic action potential attenuation in hippocampal pyramidal neurons. J Neurosci 17, 6639-6646.
24. Kang J, Huguenard JR & Prince DA (2000). Voltage-gated potassium channels activated during action potentials in layer V neocortical pyramidal neurons. J Neurophysiol 83, 70-80.
25. LeDoux JE (2000). Emotion circuits in the brain. Annu Rev Neurosci 23, 155-184.
26. Llinás R (1988). The intrinsic electrophysiological properties of mammalian neurons: Insights into central nervous system function. Science 242, 1654-1664.
27. Llinás R, Steinberg IZ & Walton K (1981). Presynaptic calcium currents in squid giant synapse. Biophys J 33, 289-321.
28. + currents in frequency-dependent spike broadening in Aplysia R20 neurons: a dynamic-clamp analysis. J Neurosci 16, 4089-4101.
29. McDonald AJ (1984). Neuronal organisation of the lateral and basolateral amygdaloid nuclei of the rat. J Comp Neurol 222, 589-606.
30. Magee J, Hoffman D, Colbert C & Johnston D (1998). Electrical and calcium signaling in dendrites of hippocampal pyramidal neurons. Annu Rev Physiol 60, 327-346.
31. Magee JC & Johnston D (1997). A synaptically controlled, associative signal for Hebbian plasticity in hippocampal neurons. Science 275, 209-213.
32. Mahanty NK & Sah P (1998). Calcium-permeable AMPA receptors mediate long-term potentiation in interneurons in the amygdala. Nature 394, 683-687.
33. Paré D & Gaudreau H (1996). Projection cells and interneurons of the lateral and basolateral amygdala: Distinct firing patterns and differential relation to theta and delta rhythms in conscious cats. J Neurosci 16, 3334-3350.
34. Poolos NP & Johnston D (1999). Calcium-activated potassium conductances contribute to action potential repolarization at the soma but not the dendrites of hippocampal CA1 pyramidal neurons. J Neurosci 19, 5205-5212.
35. Quattrocki EA, Marshall J & Kaczmarek LK (1994). A Shab potassium channel contributes to action potential broadening in peptidergic neurons. Neuron 12, 73-86.
36. Regehr WG, Delaney KR & Tank DW (1994). The role of presynaptic calcium in short-term enhancement at the hippocampal mossy fiber synapse. J Neurosci 14, 523-537.
37. Sabatini BL & Regehr WG (1997). Control of neurotransmitter release by presynaptic waveform at the granule cell to Purkinje cell synapse. J Neurosci 17, 3425-3435.
38. + current in rat vagal motoneurons. J Neurophysiol 68, 2237-2248.
39. + currents in neurones: types, physiological roles and modulation. Trends Neurosci 19, 150-154.
40. Sah P & Bekkers JM (1996). Apical dendritic location of slow-afterhyperpolarization current in hippocampal pyramidal neurons: implications for the integration of LTP. J Neurosci 16, 4537-4542.
41. Sah P & Faber ESL (2002). Channels underlying neuronal calcium-activated potassium currents. Prog Neurobiol 66, 345-353.
42. Sah P, Faber ESL, Lopez de Armentia M & Power JM (2003). The amygdaloid complex, anatomy and physiology. Physiol Rev 83, 803-834.
43. Sather W, Dieudonne S, MacDonald JF & Ascher P (1992). Activation and desensitization of N-methyl-D-aspartate receptors in nucleated outside-out patches from mouse neurones. J Physiol 450, 643-672.
44. Schwindt PC, Spain WJ & Crill WE (1992). Calcium-dependent potassium currents in neurones from cat sensorimotor cortex. J Neurophysiol 67, 216-226.
45. + channels in spike broadening during repetitive firing in rat hippocampal pyramidal cells. J Physiol 521, 135-146.
46. + current in hippocampal pyramidal neurons. Proc Natl Acad Sci U S A 96, 4662-4667.
47. Storm JF (1987). Action potential repolarization and a fast afterhyperpolarization in rat hippocampal pyramidal cells. J Physiol 385, 733-759.
48. Storm JF (1990). Potassium currents in hippocampal pyramidal cells. Prog Brain Res 83, 161-187.
49. Van Goor F, LeBeau AP, Krsmanovic LZ, Sherman A, Catt KJ & Stojilkovic SS (2000). Amplitude-dependent spike-broadening and enhanced Ca(2+) signaling in GnRH-secreting neurons. Biophys J 79, 1310-1323.