Abstract
During mid to late embryonic development (E13 to birth in mice), the neuromotor system is refined by reducing motor neuron (MN) numbers and establishing nascent synaptic connections onto and by MNs. Concurrently, the response to GABAergic and glycinergic synaptic activity switches from postsynaptic excitation to inhibition. Our previous studies on mutant mice lacking glycinergic transmission or deficient in GABA suggests that altered MN activity levels during this developmental period differentially regulates MN survival and muscle innervation for respiratory and non-respiratory motor pools. To determine if combined loss of GABAergic and glycinergic transmission plays a similar or exaggerated role, we quantified MN number and muscle innervation in two respiratory (hypoglossal and phrenic) and two locomotor (brachial and lumbar) motor pools, in mice lacking vesicular inhibitory amino acid transporter, which display absent or severely impaired GABAergic and glycinergic neurotransmission. For respiratory MNs, we observed significant decreases in MN number (−20 % hypoglossal and −36 % phrenic) and diaphragm axonal branching (−60 %). By contrast, for non-respiratory brachial and lumbar MNs, we observed increases in MN number (+62 % brachial and +84 % lumbar) and axonal branching for innervated muscles (+123 % latissimus dorsi for brachial and +61 % gluteal for lumbar). These results show that combined absence of GABAergic and glycinergic neurotransmission causes distinct regional changes in MN number and muscle innervation, which are dependent upon the motor function of the specific motor pool.
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References
Akerman CJ, Cline HT (2007) Refining the roles of GABAergic signaling during neural circuit formation. Trends Neurosci 30(8):382–389
Allain AE, Bairi A, Meyrand P, Branchereau P (2004) Ontogenic changes of the GABAergic system in the embryonic mouse spinal cord. Brain Res 1000(1-2):134–147
Allain AE, Bairi A, Meyrand P, Branchereau P (2006) Expression of the glycinergic system during the course of embryonic development in the mouse spinal cord and its co-localization with GABA immunoreactivity. J Comp Neurol 496(6):832–846
Asada H, Kawamura Y, Maruyama K, Kume H, Ding RG, Kanbara N, Kuzume H, Sanbo M, Yagi T, Obata K (1997) Cleft palate and decreased brain gamma-aminobutyric acid in mice lacking the 67-kDa isoform of glutamic acid decarboxylase. Proc Natl Acad Sci USA 94(12):6496–6499
Bacskai T, Fu Y, Sengul G, Rusznak Z, Paxinos G, Watson C (2013) Musculotopic organization of the motor neurons supplying forelimb and shoulder girdle muscles in the mouse. Brain Struct Funct 218(1):221–238
Ballion B, Branchereau P, Chapron J, Viala D (2002) Ontogeny of descending serotonergic innervation and evidence for intraspinal 5-HT neurons in the mouse spinal cord. Brain Res Dev Brain Res 137(1):81–88
Banks GB, Chau TN, Bartlett SE, Noakes PG (2001) Promotion of motoneuron survival and branching in rapsyn-deficient mice. J Comp Neurol 429(1):156–165
Banks GB, Choy PT, Lavidis NA, Noakes PG (2003) Neuromuscular synapses mediate motor axon branching and motoneuron survival during the embryonic period of programmed cell death. Dev Biol 257(1):71–84
Banks GB, Kanjhan R, Wiese S, Kneussel M, Wong LM, O’Sullivan G, Sendtner M, Bellingham MC, Betz H, Noakes PG (2005) Glycinergic and GABAergic synaptic activity differentially regulate motoneuron survival and skeletal muscle innervation. J Neurosci 25(5):1249–1259
Ben-Ari Y (2002) Excitatory actions of gaba during development: the nature of the nurture. Nat Rev Neurosci 3(9):728–739
Bhumbra GS, Moore NJ, Moroni M, Beato M (2012) Co-release of GABA does not occur at glycinergic synapses onto lumbar motoneurons in juvenile mice. Front Cell Neurosci 6:8
Boyce RW, Dorph-Petersen KA, Lyck L, Gundersen HJ (2010) Design-based stereology: introduction to basic concepts and practical approaches for estimation of cell number. Toxicol Pathol 38(7):1011–1025
Clarke PG, Oppenheim RW (1995) Neuron death in vertebrate development: in vitro methods. Methods Cell Biol 46:277–321
Dahm LM, Landmesser LT (1988) The regulation of intramuscular nerve branching during normal development and following activity blockade. Dev Biol 130(2):621–644
Dahm LM, Landmesser LT (1991) The regulation of synaptogenesis during normal development and following activity blockade. J Neurosci 11(1):238–255
Drummond GB (2009) Reporting ethical matters in the Journal of Physiology: standards and advice. J Physiol 587(Pt 4):713–719
Feng G, Tintrup H, Kirsch J, Nichol MC, Kuhse J, Betz H, Sanes JR (1998) Dual requirement for gephyrin in glycine receptor clustering and molybdoenzyme activity. Science 282(5392):1321–1324
Ferraro E, Molinar F, Berghella L (2012) Molecular control of neuromuscular junction development. J Cachexia Sarcopenia Muscle 3(1):13–23
Fogarty MJ, Smallcombe KL, Yanagawa Y, Obata K, Bellingham MC, Noakes PG (2013) Genetic deficiency of GABA differentially regulates respiratory and non-respiratory motor neuron development. PLoS One 8(2):e56257. doi:10.1371/journal.pone.0056257
Fujii M, Arata A, Kanbara-Kume N, Saito K, Yanagawa Y, Obata K (2007) Respiratory activity in brainstem of fetal mice lacking glutamate decarboxylase 65/67 and vesicular GABA transporter. Neuroscience 146(3):1044–1052
Gao BX, Stricker C, Ziskind-Conhaim L (2001) Transition from GABAergic to glycinergic synaptic transmission in newly formed spinal networks. J Neurophysiol 86(1):492–502
Gundersen HJ, Bagger P, Bendtsen TF, Evans SM, Korbo L, Marcussen N, Moller A, Nielsen K, Nyengaard JR, Pakkenberg B et al (1988a) The new stereological tools: disector, fractionator, nucleator and point sampled intercepts and their use in pathological research and diagnosis. APMIS 96(10):857–881
Gundersen HJ, Bendtsen TF, Korbo L, Marcussen N, Moller A, Nielsen K, Nyengaard JR, Pakkenberg B, Sorensen FB, Vesterby A et al (1988b) Some new, simple and efficient stereological methods and their use in pathological research and diagnosis. APMIS 96(5):379–394
Hanson MG, Landmesser LT (2003) Characterization of the circuits that generate spontaneous episodes of activity in the early embryonic mouse spinal cord. J Neurosci 23(2):587–600
Kirsch J, Betz H (1993) Widespread expression of gephyrin, a putative glycine receptor-tubulin linker protein, in rat brain. Brain Res 621(2):301–310
Kneussel M, Brandstatter JH, Laube B, Stahl S, Muller U, Betz H (1999) Loss of postsynaptic GABA(A) receptor clustering in gephyrin-deficient mice. J Neurosci 19(21):9289–9297
Kneussel M, Haverkamp S, Fuhrmann JC, Wang H, Wassle H, Olsen RW, Betz H (2000) The gamma-aminobutyric acid type A receptor (GABAAR)-associated protein GABARAP interacts with gephyrin but is not involved in receptor anchoring at the synapse. Proc Natl Acad Sci USA 97(15):8594–8599
Lance-Jones C (1982) Motoneuron cell death in the developing lumbar spinal cord of the mouse. Brain Res 256(4):473–479
Landmesser L (1992) The relationship of intramuscular nerve branching and synaptogenesis to motoneuron survival. J Neurobiol 23(9):1131–1139
Levi S, Logan SM, Tovar KR, Craig AM (2004) Gephyrin is critical for glycine receptor clustering but not for the formation of functional GABAergic synapses in hippocampal neurons. J Neurosci 24(1):207–217
Mantilla CB, Sieck GC (2008) Key aspects of phrenic motoneuron and diaphragm muscle development during the perinatal period. J Appl Physiol 104(6):1818–1827
Moody WJ, Bosma MM (2005) Ion channel development, spontaneous activity, and activity-dependent development in nerve and muscle cells. Physiol Rev 85(3):883–941
Narayanan CH, Fox MW, Hamburger V (1971) Prenatal development of spontaneous and evoked activity in the rat (Rattus norvegicus albinus). Behaviour 40(1):100–134
Nishimaru H, Kudo N (2000) Formation of the central pattern generator for locomotion in the rat and mouse. Brain Res Bull 53(5):661–669
Nishimaru H, Iizuka M, Ozaki S, Kudo N (1996) Spontaneous motoneuronal activity mediated by glycine and GABA in the spinal cord of rat fetuses in vitro. J Physiol 497(Pt 1):131–143
Noakes PG, Chin D, Kim SS, Liang S, Phillips WD (1999) Expression and localisation of dynamin and syntaxin during neural development and neuromuscular synapse formation. J Comp Neurol 410(4):531–540
Oppenheim RW (1989) The neurotrophic theory and naturally occurring motoneuron death. Trends Neurosci 12(7):252–255
Oppenheim RW (1991) Cell death during development of the nervous system. Annu Rev Neurosci 14:453–501
Oppenheim RW, Nunez R (1982) Electrical stimulation of hindlimb increases neuronal cell death in chick embryo. Nature 295(5844):57–59
Oppenheim RW, Prevette D, Houenou LJ, Pincon-Raymond M, Dimitriadou V, Donevan A, O’Donovan M, Wenner P, McKemy DD, Allen PD (1997) Neuromuscular development in the avian paralytic mutant crooked neck dwarf (cn/cn): further evidence for the role of neuromuscular activity in motoneuron survival. J Comp Neurol 381(3):353–372
Oppenheim RW, Prevette D, D’Costa A, Wang S, Houenou LJ, McIntosh JM (2000) Reduction of neuromuscular activity is required for the rescue of motoneurons from naturally occurring cell death by nicotinic-blocking agents. J Neurosci 20(16):6117–6124
Oppenheim RW, Caldero J, Cuitat D, Esquerda J, Ayala V, Prevette D, Wang S (2003) Rescue of developing spinal motoneurons from programmed cell death by the GABA(A) agonist muscimol acts by blockade of neuromuscular activity and increased intramuscular nerve branching. Mol Cell Neurosci 22(3):331–343
Oppenheim RW, Caldero J, Cuitat D, Esquerda J, McArdle JJ, Olivera BM, Prevette D, Teichert RW (2008) The rescue of developing avian motoneurons from programmed cell death by a selective inhibitor of the fetal muscle-specific nicotinic acetylcholine receptor. Dev Neurobiol 68(7):972–980
Owens DF, Kriegstein AR (2002) Is there more to GABA than synaptic inhibition? Nat Rev Neurosci 3(9):715–727
Paxinos G, Halliday G, Watson C, Koutcherov Y, Wang H (2006) Atlas of the developing mouse brain at E17.5, P0 and P6. Academic Press, New York
Pittman R, Oppenheim RW (1979) Cell death of motoneurons in the chick embryo spinal cord. IV. Evidence that a functional neuromuscular interaction is involved in the regulation of naturally occurring cell death and the stabilization of synapses. J Comp Neurol 187(2):425–446
Porcher C, Hatchett C, Longbottom RE, McAinch K, Sihra TS, Moss SJ, Thomson AM, Jovanovic JN (2011) Positive feedback regulation between gamma-aminobutyric acid type A (GABA(A)) receptor signaling and brain-derived neurotrophic factor (BDNF) release in developing neurons. J Biol Chem 286(24):21667–21677
Ren J, Greer JJ (2003) Ontogeny of rhythmic motor patterns generated in the embryonic rat spinal cord. J Neurophysiol 89(3):1187–1195
Saito K, Kakizaki T, Hayashi R, Nishimaru H, Furukawa T, Nakazato Y, Takamori S, Ebihara S, Uematsu M, Mishina M, Miyazaki J, Yokoyama M, Konishi S, Inoue K, Fukuda A, Fukumoto M, Nakamura K, Obata K, Yanagawa Y (2010) The physiological roles of vesicular GABA transporter during embryonic development: a study using knockout mice. Mol Brain 3:40
Sibilla S, Ballerini L (2009) GABAergic and glycinergic interneuron expression during spinal cord development: dynamic interplay between inhibition and excitation in the control of ventral network outputs. Prog Neurobiol 89(1):46–60
Singer JH, Berger AJ (2000) Development of inhibitory synaptic transmission to motoneurons. Brain Res Bull 53(5):553–560
Tamamaki N, Yanagawa Y, Tomioka R, Miyazaki J, Obata K, Kaneko T (2003) Green fluorescent protein expression and colocalization with calretinin, parvalbumin, and somatostatin in the GAD67-GFP knock-in mouse. J Comp Neurol 467(1):60–79
Tang J, Landmesser L (1993) Reduction of intramuscular nerve branching and synaptogenesis is correlated with decreased motoneuron survival. J Neurosci 13(7):3095–3103
Tsunekawa N, Arata A, Obata K (2005) Development of spontaneous mouth/tongue movement and related neural activity, and their repression in fetal mice lacking glutamate decarboxylase 67. Eur J Neurosci 21(1):173–178
Waagepetersen HS, Sonnewald U, Schousboe A (1999) The GABA paradox: multiple roles as metabolite, neurotransmitter, and neurodifferentiative agent. J Neurochem 73(4):1335–1342
Watson C, Paxinos G, Kayalioglu G (2008) The spinal cord. Academic Press, New York
West MJ (1993) New stereological methods for counting neurons. Neurobiol Aging 14(4):275–285
West MJ (1999) Stereological methods for estimating the total number of neurons and synapses: issues of precision and bias. Trends Neurosci 22(2):51–61
Wojcik SM, Katsurabayashi S, Guillemin I, Friauf E, Rosenmund C, Brose N, Rhee JS (2006) A shared vesicular carrier allows synaptic corelease of GABA and glycine. Neuron 50(4):575–587
Yvert B, Branchereau P, Meyrand P (2004) Multiple spontaneous rhythmic activity patterns generated by the embryonic mouse spinal cord occur within a specific developmental time window. J Neurophysiol 91(5):2101–2109
Acknowledgments
The work was funded by project Grant 568680 from the National Health and Medical Research Council, Australia, to PGN and MCB. MJF was supported by an Australian Postgraduate Award Scholarship from the Federal Government of Australia. YY was supported by a grant-in-aid for scientific research on innovative areas ‘Mesocropic Neurocircuitry’ and scientific research (B) from the Ministry of Education, Culture, Sports, Science and Technology, Japan and Takeda Science Foundation. The stereology system was purchased with the aid of an Australian Research Council Linkage Infrastructure, Equipment and Facilities Grant LE100100074. We thank Lynn Tolley for processing tissues for light microscopy. We also thank Maryam Shayegh, Luke Hammond and Mary White for their technical support.
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Fogarty, M.J., Yanagawa, Y., Obata, K. et al. Genetic absence of the vesicular inhibitory amino acid transporter differentially regulates respiratory and locomotor motor neuron development. Brain Struct Funct 220, 525–540 (2015). https://doi.org/10.1007/s00429-013-0673-9
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DOI: https://doi.org/10.1007/s00429-013-0673-9