[{"month":"02","publication_identifier":{"issn":["2663-337X"]},"oa":1,"doi":"10.15479/AT:ISTA:7525","supervisor":[{"full_name":"Shigemoto, Ryuichi","id":"499F3ABC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8761-9444","first_name":"Ryuichi","last_name":"Shigemoto"}],"acknowledged_ssus":[{"_id":"EM-Fac"}],"degree_awarded":"PhD","language":[{"iso":"eng"}],"file_date_updated":"2021-03-01T23:30:04Z","year":"2020","publication_status":"published","publisher":"Institute of Science and Technology Austria","department":[{"_id":"RySh"}],"author":[{"first_name":"Pradeep","last_name":"Bhandari","id":"45EDD1BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0863-4481","full_name":"Bhandari, Pradeep"}],"date_created":"2020-02-26T10:56:37Z","date_updated":"2023-09-07T13:20:03Z","keyword":["Cav2.3","medial habenula (MHb)","interpeduncular nucleus (IPN)"],"day":"28","article_processing_charge":"No","has_accepted_license":"1","citation":{"ama":"Bhandari P. Localization and functional role of Cav2.3 in the medial habenula to interpeduncular nucleus pathway. 2020. doi:10.15479/AT:ISTA:7525","ieee":"P. Bhandari, “Localization and functional role of Cav2.3 in the medial habenula to interpeduncular nucleus pathway,” Institute of Science and Technology Austria, 2020.","apa":"Bhandari, P. (2020). Localization and functional role of Cav2.3 in the medial habenula to interpeduncular nucleus pathway. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:7525","ista":"Bhandari P. 2020. Localization and functional role of Cav2.3 in the medial habenula to interpeduncular nucleus pathway. Institute of Science and Technology Austria.","short":"P. Bhandari, Localization and Functional Role of Cav2.3 in the Medial Habenula to Interpeduncular Nucleus Pathway, Institute of Science and Technology Austria, 2020.","mla":"Bhandari, Pradeep. Localization and Functional Role of Cav2.3 in the Medial Habenula to Interpeduncular Nucleus Pathway. Institute of Science and Technology Austria, 2020, doi:10.15479/AT:ISTA:7525.","chicago":"Bhandari, Pradeep. “Localization and Functional Role of Cav2.3 in the Medial Habenula to Interpeduncular Nucleus Pathway.” Institute of Science and Technology Austria, 2020. https://doi.org/10.15479/AT:ISTA:7525."},"page":"79","date_published":"2020-02-28T00:00:00Z","type":"dissertation","alternative_title":["ISTA Thesis"],"abstract":[{"lang":"eng","text":"The medial habenula (MHb) is an evolutionary conserved epithalamic structure important for the modulation of emotional memory. It is involved in regulation of anxiety, compulsive behavior, addiction (nicotinic and opioid), sexual and feeding behavior. MHb receives inputs from septal regions and projects exclusively to the interpeduncular nucleus (IPN). Distinct sub-regions of the septum project to different subnuclei of MHb: the bed nucleus of anterior commissure projects to dorsal MHb and the triangular septum projects to ventral MHb. Furthermore, the dorsal and ventral MHb project to the lateral and rostral/central IPN, respectively. Importantly, these projections have unique features of prominent co-release of different neurotransmitters and requirement of a peculiar type of calcium channel for release. In general, synaptic neurotransmission requires an activity-dependent influx of Ca2+ into the presynaptic terminal through voltage-gated calcium channels. The calcium channel family most commonly involved in neurotransmitter release comprises three members, P/Q-, N- and R-type with Cav2.1, Cav2.2 and Cav2.3 subunits, respectively. In contrast to most CNS synapses that mainly express Cav2.1 and/or Cav2.2, MHb terminals in the IPN exclusively express Cav2.3. In other parts of the brain, such as the hippocampus, Cav2.3 is mostly located to postsynaptic elements. This unusual presynaptic location of Cav2.3 in the MHb-IPN pathway implies unique mechanisms of glutamate release in this pathway. One potential example of such uniqueness is the facilitation of release by GABAB receptor (GBR) activation. Presynaptic GBRs usually inhibit the release of neurotransmitters by inhibiting presynaptic calcium channels. MHb shows the highest expression levels of GBR in the brain. GBRs comprise two subunits, GABAB1 (GB1) and GABAB2 (GB2), and are associated with auxiliary subunits, called potassium channel tetramerization domain containing proteins (KCTD) 8, 12, 12b and 16. Among these four subunits, KCTD12b is exclusively expressed in ventral MHb, and KCTD8 shows the strongest expression in the whole MHb among other brain regions, indicating that KCTD8 and KCTD12b may be involved in the unique mechanisms of neurotransmitter release mediated by Cav2.3 and regulated by GBRs in this pathway. \r\nIn the present study, we first verified that neurotransmission in both dorsal and ventral MHb-IPN pathways is mainly mediated by Cav2.3 using a selective blocker of R-type channels, SNX-482. We next found that baclofen, a GBR agonist, has facilitatory effects on release from ventral MHb terminal in rostral IPN, whereas it has inhibitory effects on release from dorsal MHb terminals in lateral IPN, indicating that KCTD12b expressed exclusively in ventral MHb may have a role in the facilitatory effects of GBR activation. In a heterologous expression system using HEK cells, we found that KCTD8 and KCTD12b but not KCTD12 directly bind with Cav2.3. Pre-embedding immunogold electron microscopy data show that Cav2.3 and KCTD12b are distributed most densely in presynaptic active zone in IPN with KCTD12b being present only in rostral/central but not lateral IPN, whereas GABAB, KCTD8 and KCTD12 are distributed most densely in perisynaptic sites with KCTD12 present more frequently in postsynaptic elements and only in rostral/central IPN. In freeze-fracture replica labelling, Cav2.3, KCTD8 and KCTD12b are co-localized with each other in the same active zone indicating that they may form complexes regulating vesicle release in rostral IPN. \r\nOn electrophysiological studies of wild type (WT) mice, we found that paired-pulse ratio in rostral IPN of KCTD12b knock-out (KO) mice is lower than those of WT and KCTD8 KO mice. Consistent with this finding, in mean variance analysis, release probability in rostral IPN of KCTD12b KO mice is higher than that of WT and KCTD8 KO mice. Although paired-pulse ratios are not different between WT and KCTD8 KO mice, the mean variance analysis revealed significantly lower release probability in rostral IPN of KCTD8 KO than WT mice. These results demonstrate bidirectional regulation of Cav2.3-mediated release by KCTD8 and KCTD12b without GBR activation in rostral IPN. Finally, we examined the baclofen effects in rostral IPN of KCTD8 and KCTD12b KO mice, and found the facilitation of release remained in both KO mice, indicating that the peculiar effects of the GBR activation in this pathway do not depend on the selective expression of these KCTD subunits in ventral MHb. However, we found that presynaptic potentiation of evoked EPSC amplitude by baclofen falls to baseline after washout faster in KCTD12b KO mice than WT, KCTD8 KO and KCTD8/12b double KO mice. This result indicates that KCTD12b is involved in sustained potentiation of vesicle release by GBR activation, whereas KCTD8 is involved in its termination in the absence of KCTD12b. Consistent with these functional findings, replica labelling revealed an increase in density of KCTD8, but not Cav2.3 or GBR at active zone in rostral IPN of KCTD12b KO mice compared with that of WT mice, suggesting that increased association of KCTD8 with Cav2.3 facilitates the release probability and termination of the GBR effect in the absence of KCTD12b.\r\nIn summary, our study provided new insights into the physiological roles of presynaptic Cav2.3, GBRs and their auxiliary subunits KCTDs at an evolutionary conserved neuronal circuit. Future studies will be required to identify the exact molecular mechanism underlying the GBR-mediated presynaptic potentiation on ventral MHb terminals. It remains to be determined whether the prominent presence of presynaptic KCTDs at active zone could exert similar neuromodulatory functions in different pathways of the brain.\r\n"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"7525","ddc":["570"],"status":"public","title":"Localization and functional role of Cav2.3 in the medial habenula to interpeduncular nucleus pathway","oa_version":"Published Version","file":[{"checksum":"4589234fdb12b4ad72273b311723a7b4","date_updated":"2021-03-01T23:30:04Z","date_created":"2020-02-28T08:37:53Z","embargo":"2021-02-28","file_id":"7538","title":"Localization and functional role of Cav2.3 in the medial habenula to interpeduncular nucleus pathway","relation":"main_file","creator":"pbhandari","file_size":9646346,"content_type":"application/pdf","access_level":"open_access","file_name":"Pradeep Bhandari Thesis.pdf"},{"relation":"source_file","file_id":"7539","title":"Localization and functional role of Cav2.3 in the medial habenula to interpeduncular nucleus pathway","date_created":"2020-02-28T08:47:14Z","date_updated":"2021-03-01T23:30:04Z","checksum":"aa79490553ca0a5c9b6fbcd152e93928","embargo_to":"open_access","file_name":"Pradeep Bhandari Thesis.docx","access_level":"closed","content_type":"application/vnd.openxmlformats-officedocument.wordprocessingml.document","file_size":35252164,"creator":"pbhandari"}]},{"type":"journal_article","issue":"18","abstract":[{"lang":"eng","text":"The molecular anatomy of synapses defines their characteristics in transmission and plasticity. Precise measurements of the number and distribution of synaptic proteins are important for our understanding of synapse heterogeneity within and between brain regions. Freeze–fracture replica immunogold electron microscopy enables us to analyze them quantitatively on a two-dimensional membrane surface. Here, we introduce Darea software, which utilizes deep learning for analysis of replica images and demonstrate its usefulness for quick measurements of the pre- and postsynaptic areas, density and distribution of gold particles at synapses in a reproducible manner. We used Darea for comparing glutamate receptor and calcium channel distributions between hippocampal CA3-CA1 spine synapses on apical and basal dendrites, which differ in signaling pathways involved in synaptic plasticity. We found that apical synapses express a higher density of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors and a stronger increase of AMPA receptors with synaptic size, while basal synapses show a larger increase in N-methyl-D-aspartate (NMDA) receptors with size. Interestingly, AMPA and NMDA receptors are segregated within postsynaptic sites and negatively correlated in density among both apical and basal synapses. In the presynaptic sites, Cav2.1 voltage-gated calcium channels show similar densities in apical and basal synapses with distributions consistent with an exclusion zone model of calcium channel-release site topography."}],"intvolume":" 21","ddc":["570"],"title":"Deep learning-assisted high-throughput analysis of freeze-fracture replica images applied to glutamate receptors and calcium channels at hippocampal synapses","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"8532","file":[{"success":1,"checksum":"2e4f62f3cfe945b7391fc3070e5a289f","date_created":"2020-09-21T14:08:58Z","date_updated":"2020-09-21T14:08:58Z","file_id":"8551","relation":"main_file","creator":"dernst","content_type":"application/pdf","file_size":5748456,"access_level":"open_access","file_name":"2020_JournMolecSciences_Kleindienst.pdf"}],"oa_version":"Published Version","scopus_import":"1","article_processing_charge":"No","has_accepted_license":"1","day":"14","article_type":"original","citation":{"chicago":"Kleindienst, David, Jacqueline-Claire Montanaro-Punzengruber, Pradeep Bhandari, Matthew J Case, Yugo Fukazawa, and Ryuichi Shigemoto. “Deep Learning-Assisted High-Throughput Analysis of Freeze-Fracture Replica Images Applied to Glutamate Receptors and Calcium Channels at Hippocampal Synapses.” International Journal of Molecular Sciences. MDPI, 2020. https://doi.org/10.3390/ijms21186737.","short":"D. Kleindienst, J.-C. Montanaro-Punzengruber, P. Bhandari, M.J. Case, Y. Fukazawa, R. Shigemoto, International Journal of Molecular Sciences 21 (2020).","mla":"Kleindienst, David, et al. “Deep Learning-Assisted High-Throughput Analysis of Freeze-Fracture Replica Images Applied to Glutamate Receptors and Calcium Channels at Hippocampal Synapses.” International Journal of Molecular Sciences, vol. 21, no. 18, 6737, MDPI, 2020, doi:10.3390/ijms21186737.","apa":"Kleindienst, D., Montanaro-Punzengruber, J.-C., Bhandari, P., Case, M. J., Fukazawa, Y., & Shigemoto, R. (2020). Deep learning-assisted high-throughput analysis of freeze-fracture replica images applied to glutamate receptors and calcium channels at hippocampal synapses. International Journal of Molecular Sciences. MDPI. https://doi.org/10.3390/ijms21186737","ieee":"D. Kleindienst, J.-C. Montanaro-Punzengruber, P. Bhandari, M. J. Case, Y. Fukazawa, and R. Shigemoto, “Deep learning-assisted high-throughput analysis of freeze-fracture replica images applied to glutamate receptors and calcium channels at hippocampal synapses,” International Journal of Molecular Sciences, vol. 21, no. 18. MDPI, 2020.","ista":"Kleindienst D, Montanaro-Punzengruber J-C, Bhandari P, Case MJ, Fukazawa Y, Shigemoto R. 2020. Deep learning-assisted high-throughput analysis of freeze-fracture replica images applied to glutamate receptors and calcium channels at hippocampal synapses. International Journal of Molecular Sciences. 21(18), 6737.","ama":"Kleindienst D, Montanaro-Punzengruber J-C, Bhandari P, Case MJ, Fukazawa Y, Shigemoto R. Deep learning-assisted high-throughput analysis of freeze-fracture replica images applied to glutamate receptors and calcium channels at hippocampal synapses. International Journal of Molecular Sciences. 2020;21(18). doi:10.3390/ijms21186737"},"publication":"International Journal of Molecular Sciences","date_published":"2020-09-14T00:00:00Z","article_number":"6737","license":"https://creativecommons.org/licenses/by/4.0/","ec_funded":1,"file_date_updated":"2020-09-21T14:08:58Z","department":[{"_id":"RySh"}],"publisher":"MDPI","publication_status":"published","year":"2020","acknowledgement":"This research was funded by Austrian Academy of Sciences, DOC fellowship to D.K., European Research\r\nCouncil Advanced Grant 694539 and European Union Human Brain Project (HBP) SGA2 785907 to R.S.\r\nWe acknowledge Elena Hollergschwandtner for technical support.","volume":21,"date_updated":"2024-03-28T23:30:31Z","date_created":"2020-09-20T22:01:35Z","related_material":{"record":[{"id":"9562","status":"public","relation":"dissertation_contains"}]},"author":[{"id":"42E121A4-F248-11E8-B48F-1D18A9856A87","last_name":"Kleindienst","first_name":"David","full_name":"Kleindienst, David"},{"last_name":"Montanaro-Punzengruber","first_name":"Jacqueline-Claire","id":"3786AB44-F248-11E8-B48F-1D18A9856A87","full_name":"Montanaro-Punzengruber, Jacqueline-Claire"},{"first_name":"Pradeep","last_name":"Bhandari","id":"45EDD1BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0863-4481","full_name":"Bhandari, Pradeep"},{"id":"44B7CA5A-F248-11E8-B48F-1D18A9856A87","last_name":"Case","first_name":"Matthew J","full_name":"Case, Matthew J"},{"first_name":"Yugo","last_name":"Fukazawa","full_name":"Fukazawa, Yugo"},{"full_name":"Shigemoto, Ryuichi","orcid":"0000-0001-8761-9444","id":"499F3ABC-F248-11E8-B48F-1D18A9856A87","last_name":"Shigemoto","first_name":"Ryuichi"}],"publication_identifier":{"issn":["16616596"],"eissn":["14220067"]},"month":"09","project":[{"_id":"25CA28EA-B435-11E9-9278-68D0E5697425","grant_number":"694539","call_identifier":"H2020","name":"In situ analysis of single channel subunit composition in neurons: physiological implication in synaptic plasticity and behaviour"},{"name":"Mechanism of formation and maintenance of input side-dependent asymmetry in the hippocampus","_id":"25D32BC0-B435-11E9-9278-68D0E5697425"},{"grant_number":"785907","_id":"26436750-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Human Brain Project Specific Grant Agreement 2 (HBP SGA 2)"}],"isi":1,"quality_controlled":"1","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"external_id":{"isi":["000579945300001"]},"language":[{"iso":"eng"}],"doi":"10.3390/ijms21186737"},{"publication_identifier":{"issn":["00092673"]},"month":"05","language":[{"iso":"eng"}],"doi":"10.1246/bcsj.20190034","project":[{"grant_number":"694539","_id":"25CA28EA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"In situ analysis of single channel subunit composition in neurons: physiological implication in synaptic plasticity and behaviour"}],"quality_controlled":"1","oa":1,"ec_funded":1,"file_date_updated":"2020-10-02T08:49:58Z","volume":92,"date_created":"2019-07-21T21:59:16Z","date_updated":"2021-01-12T08:08:26Z","author":[{"last_name":"Zenmyo","first_name":"Naoki","full_name":"Zenmyo, Naoki"},{"first_name":"Hiroki","last_name":"Tokumaru","full_name":"Tokumaru, Hiroki"},{"full_name":"Uchinomiya, Shohei","first_name":"Shohei","last_name":"Uchinomiya"},{"full_name":"Fuchida, Hirokazu","first_name":"Hirokazu","last_name":"Fuchida"},{"id":"4427179E-F248-11E8-B48F-1D18A9856A87","last_name":"Tabata","first_name":"Shigekazu","full_name":"Tabata, Shigekazu"},{"first_name":"Itaru","last_name":"Hamachi","full_name":"Hamachi, Itaru"},{"orcid":"0000-0001-8761-9444","id":"499F3ABC-F248-11E8-B48F-1D18A9856A87","last_name":"Shigemoto","first_name":"Ryuichi","full_name":"Shigemoto, Ryuichi"},{"full_name":"Ojida, Akio","last_name":"Ojida","first_name":"Akio"}],"publisher":"Bulletin of the Chemical Society of Japan","department":[{"_id":"RySh"}],"publication_status":"published","year":"2019","acknowledgement":"his work was supported by the Grant-in-Aid for Scientific Research B (JSPS KAKENHI grant no. JP17H03090 to A. O.); the Scientific Research on Innovative Areas “Chemistry for Multimolecular Crowding Biosystems” (JSPS KAKENHI grant no. JP17H06349 to A. O.); and the European Union (European Research Council Advanced grant no. 694539 and Human Brain Project Ref. 720270 to R. S.). A. O. acknowledges the financial support of the Takeda Science Foundation.","has_accepted_license":"1","article_processing_charge":"No","day":"15","scopus_import":"1","date_published":"2019-05-15T00:00:00Z","page":"995-1000","article_type":"original","citation":{"chicago":"Zenmyo, Naoki, Hiroki Tokumaru, Shohei Uchinomiya, Hirokazu Fuchida, Shigekazu Tabata, Itaru Hamachi, Ryuichi Shigemoto, and Akio Ojida. “Optimized Reaction Pair of the CysHis Tag and Ni(II)-NTA Probe for Highly Selective Chemical Labeling of Membrane Proteins.” Bulletin of the Chemical Society of Japan. Bulletin of the Chemical Society of Japan, 2019. https://doi.org/10.1246/bcsj.20190034.","short":"N. Zenmyo, H. Tokumaru, S. Uchinomiya, H. Fuchida, S. Tabata, I. Hamachi, R. Shigemoto, A. Ojida, Bulletin of the Chemical Society of Japan 92 (2019) 995–1000.","mla":"Zenmyo, Naoki, et al. “Optimized Reaction Pair of the CysHis Tag and Ni(II)-NTA Probe for Highly Selective Chemical Labeling of Membrane Proteins.” Bulletin of the Chemical Society of Japan, vol. 92, no. 5, Bulletin of the Chemical Society of Japan, 2019, pp. 995–1000, doi:10.1246/bcsj.20190034.","apa":"Zenmyo, N., Tokumaru, H., Uchinomiya, S., Fuchida, H., Tabata, S., Hamachi, I., … Ojida, A. (2019). Optimized reaction pair of the CysHis tag and Ni(II)-NTA probe for highly selective chemical labeling of membrane proteins. Bulletin of the Chemical Society of Japan. Bulletin of the Chemical Society of Japan. https://doi.org/10.1246/bcsj.20190034","ieee":"N. Zenmyo et al., “Optimized reaction pair of the CysHis tag and Ni(II)-NTA probe for highly selective chemical labeling of membrane proteins,” Bulletin of the Chemical Society of Japan, vol. 92, no. 5. Bulletin of the Chemical Society of Japan, pp. 995–1000, 2019.","ista":"Zenmyo N, Tokumaru H, Uchinomiya S, Fuchida H, Tabata S, Hamachi I, Shigemoto R, Ojida A. 2019. Optimized reaction pair of the CysHis tag and Ni(II)-NTA probe for highly selective chemical labeling of membrane proteins. Bulletin of the Chemical Society of Japan. 92(5), 995–1000.","ama":"Zenmyo N, Tokumaru H, Uchinomiya S, et al. Optimized reaction pair of the CysHis tag and Ni(II)-NTA probe for highly selective chemical labeling of membrane proteins. Bulletin of the Chemical Society of Japan. 2019;92(5):995-1000. doi:10.1246/bcsj.20190034"},"publication":"Bulletin of the Chemical Society of Japan","issue":"5","abstract":[{"lang":"eng","text":"Chemical labeling of proteins with synthetic molecular probes offers the possibility to probe the functions of proteins of interest in living cells. However, the methods for covalently labeling targeted proteins using complementary peptide tag-probe pairs are still limited, irrespective of the versatility of such pairs in biological research. Herein, we report the new CysHis tag-Ni(II) probe pair for the specific covalent labeling of proteins. A broad-range evaluation of the reactivity profiles of the probe and the CysHis peptide tag afforded a tag-probe pair with an optimized and high labeling selectivity and reactivity. In particular, the labeling specificity of this pair was notably improved compared to the previously reported one. This pair was successfully utilized for the fluorescence imaging of membrane proteins on the surfaces of living cells, demonstrating its potential utility in biological research."}],"type":"journal_article","file":[{"success":1,"checksum":"186de511d6e0ca93f5d981e2443eb8cd","date_created":"2020-10-02T08:49:58Z","date_updated":"2020-10-02T08:49:58Z","file_id":"8594","relation":"main_file","creator":"dernst","content_type":"application/pdf","file_size":2464903,"access_level":"open_access","file_name":"2019_BCSJ_Zenmyo.pdf"}],"oa_version":"Published Version","intvolume":" 92","status":"public","title":"Optimized reaction pair of the CysHis tag and Ni(II)-NTA probe for highly selective chemical labeling of membrane proteins","ddc":["570"],"_id":"6659","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"doi":"10.7554/eLife.42766","language":[{"iso":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"isi":["000485663900001"]},"quality_controlled":"1","isi":1,"month":"09","publication_identifier":{"eissn":["2050084X"]},"author":[{"full_name":"Byczkowicz, Niklas","last_name":"Byczkowicz","first_name":"Niklas"},{"last_name":"Eshra","first_name":"Abdelmoneim","full_name":"Eshra, Abdelmoneim"},{"id":"3786AB44-F248-11E8-B48F-1D18A9856A87","last_name":"Montanaro-Punzengruber","first_name":"Jacqueline-Claire","full_name":"Montanaro-Punzengruber, Jacqueline-Claire"},{"last_name":"Trevisiol","first_name":"Andrea","full_name":"Trevisiol, Andrea"},{"first_name":"Johannes","last_name":"Hirrlinger","full_name":"Hirrlinger, Johannes"},{"first_name":"Maarten Hp","last_name":"Kole","full_name":"Kole, Maarten Hp"},{"last_name":"Shigemoto","first_name":"Ryuichi","orcid":"0000-0001-8761-9444","id":"499F3ABC-F248-11E8-B48F-1D18A9856A87","full_name":"Shigemoto, Ryuichi"},{"full_name":"Hallermann, Stefan","last_name":"Hallermann","first_name":"Stefan"}],"date_created":"2019-09-15T22:00:43Z","date_updated":"2023-08-30T06:17:06Z","volume":8,"year":"2019","publication_status":"published","department":[{"_id":"RySh"}],"publisher":"eLife Sciences Publications","file_date_updated":"2020-07-14T12:47:42Z","article_number":"e42766","date_published":"2019-09-09T00:00:00Z","publication":"eLife","citation":{"mla":"Byczkowicz, Niklas, et al. “HCN Channel-Mediated Neuromodulation Can Control Action Potential Velocity and Fidelity in Central Axons.” ELife, vol. 8, e42766, eLife Sciences Publications, 2019, doi:10.7554/eLife.42766.","short":"N. Byczkowicz, A. Eshra, J.-C. Montanaro-Punzengruber, A. Trevisiol, J. Hirrlinger, M.H. Kole, R. Shigemoto, S. Hallermann, ELife 8 (2019).","chicago":"Byczkowicz, Niklas, Abdelmoneim Eshra, Jacqueline-Claire Montanaro-Punzengruber, Andrea Trevisiol, Johannes Hirrlinger, Maarten Hp Kole, Ryuichi Shigemoto, and Stefan Hallermann. “HCN Channel-Mediated Neuromodulation Can Control Action Potential Velocity and Fidelity in Central Axons.” ELife. eLife Sciences Publications, 2019. https://doi.org/10.7554/eLife.42766.","ama":"Byczkowicz N, Eshra A, Montanaro-Punzengruber J-C, et al. HCN channel-mediated neuromodulation can control action potential velocity and fidelity in central axons. eLife. 2019;8. doi:10.7554/eLife.42766","ista":"Byczkowicz N, Eshra A, Montanaro-Punzengruber J-C, Trevisiol A, Hirrlinger J, Kole MH, Shigemoto R, Hallermann S. 2019. HCN channel-mediated neuromodulation can control action potential velocity and fidelity in central axons. eLife. 8, e42766.","apa":"Byczkowicz, N., Eshra, A., Montanaro-Punzengruber, J.-C., Trevisiol, A., Hirrlinger, J., Kole, M. H., … Hallermann, S. (2019). HCN channel-mediated neuromodulation can control action potential velocity and fidelity in central axons. ELife. eLife Sciences Publications. https://doi.org/10.7554/eLife.42766","ieee":"N. Byczkowicz et al., “HCN channel-mediated neuromodulation can control action potential velocity and fidelity in central axons,” eLife, vol. 8. eLife Sciences Publications, 2019."},"article_type":"original","day":"09","article_processing_charge":"No","has_accepted_license":"1","scopus_import":"1","file":[{"checksum":"c350b7861ef0fb537cae8a3232aec016","date_created":"2019-09-16T13:14:33Z","date_updated":"2020-07-14T12:47:42Z","file_id":"6880","relation":"main_file","creator":"dernst","content_type":"application/pdf","file_size":4008137,"access_level":"open_access","file_name":"2019_eLife_Byczkowicz.pdf"}],"oa_version":"Published Version","_id":"6868","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","ddc":["570"],"title":"HCN channel-mediated neuromodulation can control action potential velocity and fidelity in central axons","status":"public","intvolume":" 8","abstract":[{"lang":"eng","text":"Hyperpolarization-activated cyclic-nucleotide-gated (HCN) channels control electrical rhythmicity and excitability in the heart and brain, but the function of HCN channels at the subcellular level in axons remains poorly understood. Here, we show that the action potential conduction velocity in both myelinated and unmyelinated central axons can be bidirectionally modulated by a HCN channel blocker, cyclic adenosine monophosphate (cAMP), and neuromodulators. Recordings from mouse cerebellar mossy fiber boutons show that HCN channels ensure reliable high-frequency firing and are strongly modulated by cAMP (EC50 40 mM; estimated endogenous cAMP concentration 13 mM). In addition, immunogold-electron microscopy revealed HCN2 as the dominating subunit in cerebellar mossy fibers. Computational modeling indicated that HCN2 channels control conduction velocity primarily by altering the resting membrane potential\r\nand are associated with significant metabolic costs. These results suggest that the cAMP-HCN pathway provides neuromodulators with an opportunity to finely tune energy consumption and temporal delays across axons in the brain."}],"type":"journal_article"},{"scopus_import":"1","article_processing_charge":"No","has_accepted_license":"1","day":"20","citation":{"mla":"Kasugai, Yu, et al. “Structural and Functional Remodeling of Amygdala GABAergic Synapses in Associative Fear Learning.” Neuron, vol. 104, no. 4, Elsevier, 2019, p. 781–794.e4, doi:10.1016/j.neuron.2019.08.013.","short":"Y. Kasugai, E. Vogel, H. Hörtnagl, S. Schönherr, E. Paradiso, M. Hauschild, G. Göbel, I. Milenkovic, Y. Peterschmitt, R. Tasan, G. Sperk, R. Shigemoto, W. Sieghart, N. Singewald, A. Lüthi, F. Ferraguti, Neuron 104 (2019) 781–794.e4.","chicago":"Kasugai, Yu, Elisabeth Vogel, Heide Hörtnagl, Sabine Schönherr, Enrica Paradiso, Markus Hauschild, Georg Göbel, et al. “Structural and Functional Remodeling of Amygdala GABAergic Synapses in Associative Fear Learning.” Neuron. Elsevier, 2019. https://doi.org/10.1016/j.neuron.2019.08.013.","ama":"Kasugai Y, Vogel E, Hörtnagl H, et al. Structural and functional remodeling of amygdala GABAergic synapses in associative fear learning. Neuron. 2019;104(4):781-794.e4. doi:10.1016/j.neuron.2019.08.013","ista":"Kasugai Y, Vogel E, Hörtnagl H, Schönherr S, Paradiso E, Hauschild M, Göbel G, Milenkovic I, Peterschmitt Y, Tasan R, Sperk G, Shigemoto R, Sieghart W, Singewald N, Lüthi A, Ferraguti F. 2019. Structural and functional remodeling of amygdala GABAergic synapses in associative fear learning. Neuron. 104(4), 781–794.e4.","ieee":"Y. Kasugai et al., “Structural and functional remodeling of amygdala GABAergic synapses in associative fear learning,” Neuron, vol. 104, no. 4. Elsevier, p. 781–794.e4, 2019.","apa":"Kasugai, Y., Vogel, E., Hörtnagl, H., Schönherr, S., Paradiso, E., Hauschild, M., … Ferraguti, F. (2019). Structural and functional remodeling of amygdala GABAergic synapses in associative fear learning. Neuron. Elsevier. https://doi.org/10.1016/j.neuron.2019.08.013"},"publication":"Neuron","page":"781-794.e4","article_type":"original","date_published":"2019-11-20T00:00:00Z","type":"journal_article","issue":"4","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"7099","intvolume":" 104","status":"public","title":"Structural and functional remodeling of amygdala GABAergic synapses in associative fear learning","ddc":["571","599"],"oa_version":"Published Version","publication_identifier":{"issn":["0896-6273"]},"month":"11","external_id":{"isi":["000497963500017"],"pmid":["31543297"]},"oa":1,"main_file_link":[{"url":"https://doi.org/10.1016/j.neuron.2019.08.013","open_access":"1"}],"quality_controlled":"1","isi":1,"doi":"10.1016/j.neuron.2019.08.013","language":[{"iso":"eng"}],"pmid":1,"acknowledgement":"The authors thank Gabi Schmid for excellent technical support. We also thank\r\nDr. H. Harada, Dr. W. Kaufmann, and Dr. B. Kapelari for testing the specificity\r\nof some of the antibodies used in this study on replicas. Funding was provided\r\nby the Austrian Science Fund (Fonds zur Fo¨ rderung der Wissenschaftlichen\r\nForschung) Sonderforschungsbereich grants F44-17 (to F.jF.), F44-10 and\r\nP25375-B24 (to N.S.), and P26680 (to G.S.) and by the Novartis Research\r\nFoundation and the Swiss National Science Foundation (to A.L). We also thank\r\nProf. M. Capogna for reading a previous version of the manuscript.","year":"2019","publisher":"Elsevier","department":[{"_id":"RySh"}],"publication_status":"published","author":[{"first_name":"Yu","last_name":"Kasugai","full_name":"Kasugai, Yu"},{"last_name":"Vogel","first_name":"Elisabeth","full_name":"Vogel, Elisabeth"},{"last_name":"Hörtnagl","first_name":"Heide","full_name":"Hörtnagl, Heide"},{"first_name":"Sabine","last_name":"Schönherr","full_name":"Schönherr, Sabine"},{"full_name":"Paradiso, Enrica","last_name":"Paradiso","first_name":"Enrica"},{"last_name":"Hauschild","first_name":"Markus","full_name":"Hauschild, Markus"},{"last_name":"Göbel","first_name":"Georg","full_name":"Göbel, Georg"},{"last_name":"Milenkovic","first_name":"Ivan","full_name":"Milenkovic, Ivan"},{"full_name":"Peterschmitt, Yvan","first_name":"Yvan","last_name":"Peterschmitt"},{"full_name":"Tasan, Ramon","last_name":"Tasan","first_name":"Ramon"},{"full_name":"Sperk, Günther","last_name":"Sperk","first_name":"Günther"},{"id":"499F3ABC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8761-9444","first_name":"Ryuichi","last_name":"Shigemoto","full_name":"Shigemoto, Ryuichi"},{"last_name":"Sieghart","first_name":"Werner","full_name":"Sieghart, Werner"},{"full_name":"Singewald, Nicolas","last_name":"Singewald","first_name":"Nicolas"},{"full_name":"Lüthi, Andreas","last_name":"Lüthi","first_name":"Andreas"},{"full_name":"Ferraguti, Francesco","last_name":"Ferraguti","first_name":"Francesco"}],"volume":104,"date_created":"2019-11-25T08:02:39Z","date_updated":"2023-08-30T07:28:22Z"}]