ELGOYHEN Ana Belén
Project status: closed
When speech or a sound enters the ear, it is accompanied by other signals such as background noise or loudness, which can damage the auditory system. Hearing is dynamic system that has set up protective barriers.
In particular, there is a natural protection mechanism controlled by the brain, which filters background noise and reduces the volume of incoming signals. This enables the relevant auditory signal to be refined so it can be transmitted to the brain without interference signals.
Prof. Elgoyhen, director of the Institute for Research on Genetic Engineering and Molecular Biology (INGEBI-CONICET) in Buenos Aires, Argentina, has discovered two essential genes involved in this protective mechanism:
- Cholinergic receptor nicotinic alpha 9 subunit, discovered in 1994, and
- Cholinergic receptor nicotinic alpha 10 subunit, discovered in 2001
Hearing science experts have suspected the existence of these proteins for decades without being able to find them. Ana Bélen Elgoyhen is the first to discover them.
These proteins play a key role in this mechanism for protecting and controlling hearing, which is essential for health hearing, enabling effective communication between the inner ear and the brain. They also provide protection from acoustic trauma.
Prof. Elgoyhen’s discovery has made a significant contribution to improving our understanding of the role of a new family of inner ear genes involved in controlling and protecting hearing. This work leads the way to new therapeutic approaches for protection the inner ear from damage, hyperacusis, acoustic trauma and tinnitus.
Professor Ana Bélen Elgoyhen
Director
Institute for Research on Genetic Engineering and Molecular Biology (INGEBI-CONICET), Buenos Aires, Argentina
Related scientific publication(s):
- Vattino LG, Wedemeyer C, Elgoyhen AB, Katz E. Functional PostnatalMaturation of the Medial Olivocochlear Efferent-Outer Hair Cell Synapse eurosci. 2020 Jun17;40(25):4842-4857.doi:10.1523/JNEUROSCI.2409-19.2020. Epub 2020 May 19.
- Marcovich I, Moglie MJ, Carpaneto Freixas AE, Trigila AP, Franchini LF, Plazas PV, Lipovsek M, Elgoyhen AB. Distinct Evolutionary Trajectories of Neuronaland Hair Cell Nicotinic Acetylcholine Receptors.Mol Biol Evol. 2020 Apr 1;37(4):1070-1089. doi: 10.1093/molbev/msz290.
- Buonfiglio P, Bruque CD, Luce L, Giliberto F, Lotersztein V, Menazzi S, Paoli B, Elgoyhen AB, Dalamón V. GJB2 and GJB6 Genetic Variant Curation in an Argentinean Non-Syndromic Hearing-Impaired Cohort. Genes (Basel). 2020 Oct 21;11(10):1233. doi: 10.3390/genes11101233.
- Carpaneto Freixas AE, Moglie MJ, Castagnola T, Salatino L, Domene S, Marcovich I, Gallino S, Wedemeyer C, Goutman JD, Plazas PV, Elgoyhen AB. Unravelling the molecular players at the cholinergic efferent synapse of the zebrafish lateral line.J Neurosci. 2021 Jan 6;41(1):47-60. doi: 10.1523/JNEUROSCI.1772-20.2020. Epub 2020 Nov 17.
- Boero LE, Castagna VC, Terreros G, Moglie MJ, Silva S, Maass JC, Fuchs PA, Delano PH, Elgoyhen AB, Gómez-Casati ME. Preventing presbycusis in mice with enhanced medial olivocochlear feedback. Proc Natl Acad Sci U S A. 2020 May 26;117(21):11811-11819. doi: 10.1073/pnas.2000760117. Epub 2020 May 11.
- Ana Belén Elgoyhen. Cochlear efferent innervation: function, development and plasticity. Current Opinion in Physiology Volume 18, December 2020, Pages 42-48.
- Hugo R Arias, Carla Ghelardini, Elena Lucarini, Han-Shen Tae , Arsalan Yousuf, Irina Marcovich, Dina Manetti, Maria Novella Romanelli, Ana Belén Elgoyhen, David J Adams , Lorenzo Di Cesare Mannelli. ( E)-3-Furan-2-yl- N- p-tolyl-acrylamide and its Derivative DM489 Decrease Neuropathic Pain in Mice Predominantly by α7 Nicotinic Acetylcholine Receptor Potentiation. ACS Chem Neurosci. 2020 Nov 4;11(21):3603-3614. doi: 10.1021/acschemneuro.0c00476. Epub 2020 Oct 19.
- Marcelo J. Moglie, Irina Marcovich, Jeremías Corradi, Agustín E. Carpaneto Freixas, Sofía Gallino, Paola V. Plazas, Cecilia Bouzat, Marcela Lipovsek and Ana Belén Elgoyhen. Loss of Choline Agonism in the Inner Ear Hair Cell Nicotinic Acetylcholine Receptor Linked to the α10 Subunit. Front Mol Neurosci. 2021 Feb 5;14:639720. doi: 10.3389/fnmol.2021.639720. eCollection 2021.
- Paola V Plazas, Ana Belén Elgoyhen. The Cholinergic Lateral Line Efferent Synapse: Structural, Functional and Molecular Similarities With Those of the Cochlea. Front Cell Neurosci . 2021 Oct 12;15:765083. doi:10.3389/fncel.2021.765083. eCollection 2021.
- Marcela Lipovsek, Irina Marcovich, Ana Belén Elgoyhen. The Hair Cell α9α10 Nicotinic Acetylcholine Receptor: Odd Cousin in an Old Family. Front Cell Neurosci. 2021 Nov 15;15:785265. doi: 10.3389/fncel.2021.785265. eCollection 2021.
- Ana Belén Elgoyhen. The α9α10 nicotinic acetylcholine receptor: A compelling drug target for hearing loss? Expert Opin Ther Targets. 2022 Mar 7;1-12. doi: 10.1080/14728222.2022.2047931. Online ahead of print.