1
|
Noriega-Prieto JA, Maglio LE, Perez-Domper P, Dávila JC, Gutiérrez A, Torres-Alemán I, Fernández de Sevilla D. Bidirectional modulation of synaptic transmission by insulin-like growth factor-I. Front Cell Neurosci 2024; 18:1390663. [PMID: 38910964 PMCID: PMC11193368 DOI: 10.3389/fncel.2024.1390663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/29/2024] [Indexed: 06/25/2024] Open
Abstract
Insulin-like growth factor-I (IGF-I) plays a key role in the modulation of synaptic plasticity and is an essential factor in learning and memory processes. However, during aging, IGF-I levels are decreased, and the effect of this decrease in the induction of synaptic plasticity remains unknown. Here we show that the induction of N-methyl-D-aspartate receptor (NMDAR)-dependent long-term potentiation (LTP) at layer 2/3 pyramidal neurons (PNs) of the mouse barrel cortex is favored or prevented by IGF-I (10 nM) or IGF-I (7 nM), respectively, when IGF-I is applied 1 h before the induction of Hebbian LTP. Analyzing the cellular basis of this bidirectional control of synaptic plasticity, we observed that while 10 nM IGF-I generates LTP (LTPIGF-I) of the post-synaptic potentials (PSPs) by inducing long-term depression (LTD) of the inhibitory post-synaptic currents (IPSCs), 7 nM IGF-I generates LTD of the PSPs (LTDIGF-I) by inducing LTD of the excitatory post-synaptic currents (EPSCs). This bidirectional effect of IGF-I is supported by the observation of IGF-IR immunoreactivity at both excitatory and inhibitory synapses. Therefore, IGF-I controls the induction of Hebbian NMDAR-dependent plasticity depending on its concentration, revealing novel cellular mechanisms of IGF-I on synaptic plasticity and in the learning and memory machinery of the brain.
Collapse
Affiliation(s)
- José Antonio Noriega-Prieto
- Departamento de Anatomía, Histología y Neurociencia, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
| | - Laura Eva Maglio
- Departamento de Anatomía, Histología y Neurociencia, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Paloma Perez-Domper
- Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Instituto Cajal (CSIC), Madrid, Spain
| | - José Carlos Dávila
- Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Departamento Biología Celular, Genética y Fisiología. Facultad de Ciencias, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Málaga, Spain
| | - Antonia Gutiérrez
- Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Departamento Biología Celular, Genética y Fisiología. Facultad de Ciencias, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Málaga, Spain
| | - Ignacio Torres-Alemán
- Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Achucarro Basque Center for Neuroscience, Leioa, Spain
- Ikerbasque Science Foundation, Bilbao, Spain
| | - David Fernández de Sevilla
- Departamento de Anatomía, Histología y Neurociencia, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| |
Collapse
|
2
|
Noriega-Prieto JA, Maglio LE, Ibáñez-Santana S, de Sevilla DF. Endocannabinoid and Nitric Oxide-Dependent IGF-I-Mediated Synaptic Plasticity at Mice Barrel Cortex. Cells 2022; 11:cells11101641. [PMID: 35626678 PMCID: PMC9140009 DOI: 10.3390/cells11101641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/22/2022] [Accepted: 05/12/2022] [Indexed: 11/28/2022] Open
Abstract
Insulin-like growth factor-I (IGF-I) signaling plays a key role in learning and memory. IGF-I increases the spiking and induces synaptic plasticity in the mice barrel cortex (Noriega-Prieto et al., 2021), favoring the induction of the long-term potentiation (LTP) by Spike Timing-Dependent Protocols (STDP) (Noriega-Prieto et al., 2021). Here, we studied whether these IGF-I effects depend on endocannabinoids (eCBs) and nitric oxide (NO). We recorded both excitatory postsynaptic currents (EPSCs) and inhibitory postsynaptic currents (IPSCs) evoked by stimulation of the basal dendrites of layer II/III pyramidal neurons of the Barrel Cortex and analyzed the effect of IGF-I in the presence of a CB1R antagonist, AM251, and inhibitor of the NO synthesis, L-NAME, to prevent the eCBs and the NO-mediated signaling. Interestingly, L-NAME abolished any modulatory effect of the IGF-I-induced excitatory and inhibitory transmission changes, suggesting the essential role of NO. Surprisingly, the inhibition of CB1Rs did not only block the potentiation of EPSCs but reversed to a depression, highlighting the remarkable functions of the eCB system. In conclusion, eCBs and NO play a vital role in deciding the sign of the effects induced by IGF-I in the neocortex, suggesting a neuromodulatory interplay among IGF-I, NO, and eCBs.
Collapse
Affiliation(s)
- José Antonio Noriega-Prieto
- Departamento de Anatomía, Histología y Neurociencia, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain; (J.A.N.-P.); (L.E.M.); (S.I.-S.)
- Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA
| | - Laura Eva Maglio
- Departamento de Anatomía, Histología y Neurociencia, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain; (J.A.N.-P.); (L.E.M.); (S.I.-S.)
| | - Sara Ibáñez-Santana
- Departamento de Anatomía, Histología y Neurociencia, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain; (J.A.N.-P.); (L.E.M.); (S.I.-S.)
| | - David Fernández de Sevilla
- Departamento de Anatomía, Histología y Neurociencia, Facultad de Medicina, Universidad Autónoma de Madrid, 28029 Madrid, Spain; (J.A.N.-P.); (L.E.M.); (S.I.-S.)
- Correspondence:
| |
Collapse
|