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König S, Schmidt N, Bechberger K, Morris S, Priego M, Zaky H, Song Y, Pielage J, Brunholz S, Brady ST, Kins S, Morfini G. Axon-Autonomous Effects of the Amyloid Precursor Protein Intracellular Domain (AICD) on Kinase Signaling and Fast Axonal Transport. Cells 2023; 12:2403. [PMID: 37830617 PMCID: PMC10572015 DOI: 10.3390/cells12192403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/14/2023] Open
Abstract
The amyloid precursor protein (APP) is a key molecular component of Alzheimer's disease (AD) pathogenesis. Proteolytic APP processing generates various cleavage products, including extracellular amyloid beta (Aβ) and the cytoplasmic APP intracellular domain (AICD). Although the role of AICD in the activation of kinase signaling pathways is well established in the context of full-length APP, little is known about intracellular effects of the AICD fragment, particularly within discrete neuronal compartments. Deficits in fast axonal transport (FAT) and axonopathy documented in AD-affected neurons prompted us to evaluate potential axon-autonomous effects of the AICD fragment for the first time. Vesicle motility assays using the isolated squid axoplasm preparation revealed inhibition of FAT by AICD. Biochemical experiments linked this effect to aberrant activation of selected axonal kinases and heightened phosphorylation of the anterograde motor protein conventional kinesin, consistent with precedents showing phosphorylation-dependent regulation of motors proteins powering FAT. Pharmacological inhibitors of these kinases alleviated the AICD inhibitory effect on FAT. Deletion experiments indicated this effect requires a sequence encompassing the NPTY motif in AICD and interacting axonal proteins containing a phosphotyrosine-binding domain. Collectively, these results provide a proof of principle for axon-specific effects of AICD, further suggesting a potential mechanistic framework linking alterations in APP processing, FAT deficits, and axonal pathology in AD.
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Affiliation(s)
- Svenja König
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Nadine Schmidt
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Karin Bechberger
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Sarah Morris
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
| | - Mercedes Priego
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
| | - Hannah Zaky
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
| | - Yuyu Song
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
- Department of Neurology, Harvard Medical School and Massachusetts General Hospital, Boston, MA 02129, USA
| | - Jan Pielage
- Department of Zoology, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany;
| | - Silke Brunholz
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Scott T. Brady
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
| | - Stefan Kins
- Department for Human Biology and Human Genetics, University of Kaiserslautern-Landau, 67663 Kaiserslautern, Germany (K.B.); (S.K.)
| | - Gerardo Morfini
- Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, IL 60612, USA (S.T.B.)
- Marine Biological Laboratory, Woods Hole, MA 02543, USA
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Musi CA, Marchini G, Giani A, Tomaselli G, Priori EC, Colnaghi L, Borsello T. Colocalization and Interaction Study of Neuronal JNK3, JIP1, and β-Arrestin2 Together with PSD95. Int J Mol Sci 2022; 23:ijms23084113. [PMID: 35456931 PMCID: PMC9024448 DOI: 10.3390/ijms23084113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 03/25/2022] [Accepted: 04/05/2022] [Indexed: 02/01/2023] Open
Abstract
c-Jun N-terminal kinases (JNKs) are stress-activated serine/threonine protein kinases belonging to the mitogen-activated protein kinase (MAPK) family. Among them, JNK3 is selectively expressed in the central nervous system, cardiac smooth muscle, and testis. In addition, it is the most responsive JNK isoform to stress stimuli in the brain, and it is involved in synaptic dysfunction, an essential step in neurodegenerative processes. JNK3 pathway is organized in a cascade of amplification in which signal transduction occurs by stepwise, highly controlled phosphorylation. Since different MAPKs share common upstream activators, pathway specificity is guaranteed by scaffold proteins such as JIP1 and β-arrestin2. To better elucidate the physiological mechanisms regulating JNK3 in neurons, and how these interactions may be involved in synaptic (dys)function, we used (i) super-resolution microscopy to demonstrate the colocalization among JNK3-PSD95-JIP1 and JNK3-PSD95-β-arrestin2 in cultured hippocampal neurons, and (ii) co-immunoprecipitation techniques to show that the two scaffold proteins and JNK3 can be found interacting together with PSD95. The protein-protein interactions that govern the formation of these two complexes, JNK3-PSD95-JIP1 and JNK3-PSD95-β-arrestin2, may be used as targets to interfere with their downstream synaptic events.
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Affiliation(s)
- Clara Alice Musi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Balzaretti, 9, 20133 Milan, Italy; (C.A.M.); (G.T.); (E.C.P.)
- Mario Negri Insitute for Pharmacolgical Research–IRCCS, Via Mario Negri, 2, 20156 Milan, Italy; (G.M.); (A.G.)
| | - Giacomo Marchini
- Mario Negri Insitute for Pharmacolgical Research–IRCCS, Via Mario Negri, 2, 20156 Milan, Italy; (G.M.); (A.G.)
| | - Arianna Giani
- Mario Negri Insitute for Pharmacolgical Research–IRCCS, Via Mario Negri, 2, 20156 Milan, Italy; (G.M.); (A.G.)
| | - Giovanni Tomaselli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Balzaretti, 9, 20133 Milan, Italy; (C.A.M.); (G.T.); (E.C.P.)
- Mario Negri Insitute for Pharmacolgical Research–IRCCS, Via Mario Negri, 2, 20156 Milan, Italy; (G.M.); (A.G.)
| | - Erica Cecilia Priori
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Balzaretti, 9, 20133 Milan, Italy; (C.A.M.); (G.T.); (E.C.P.)
- Mario Negri Insitute for Pharmacolgical Research–IRCCS, Via Mario Negri, 2, 20156 Milan, Italy; (G.M.); (A.G.)
| | - Luca Colnaghi
- Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 58, 20132 Milan, Italy;
- School of Medicine, Vita Salute San Raffaele University, Via Olgettina, 58, 20132 Milan, Italy
| | - Tiziana Borsello
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Balzaretti, 9, 20133 Milan, Italy; (C.A.M.); (G.T.); (E.C.P.)
- Mario Negri Insitute for Pharmacolgical Research–IRCCS, Via Mario Negri, 2, 20156 Milan, Italy; (G.M.); (A.G.)
- Correspondence:
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Ojaghlou N, Airas J, McRae LM, Taylor CA, Miller BR, Parish CA. Understanding the Structure and Apo Dynamics of the Functionally Active JIP1 Fragment. J Chem Inf Model 2020; 61:324-334. [PMID: 33378183 DOI: 10.1021/acs.jcim.0c01008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recent experiments indicate that the C-Jun amino-terminal kinase-interacting protein 1 (JIP1) binds to and activates the c-Jun N-terminal kinase (JNK) protein. JNK is an integral part of cell apoptosis, and misregulation of this process is a causative factor in diseases such as Alzheimer's disease (AD), obesity, and cancer. It has also been shown that JIP1 may increase the phosphorylation of tau by facilitating the interaction between the tau protein and JNK, which could also be a causative factor in AD. Very little is known about the structure and dynamics of JIP1; however, the amino acid composition of the first 350 residues suggests that it contains an intrinsically disordered region. Molecular dynamics (MD) simulations using AMBER 14 were used to study the structure and dynamics of a functionally active JIP1 10mer fragment to better understand the solution behavior of the fragment. Two microseconds of unbiased MD was performed on the JIP1 10mer fragment in 10 different seeds for a total of 20 μs of simulation time, and from this, seven structurally stable conformations of the 10mer fragment were identified via classical clustering. The 10mer ensemble was also used to build a Markov state model (MSM) that identified four metastable states that encompassed six of the seven conformational families identified by classical dimensional reduction. Based on this MSM, conformational interconversions between the four states occur via two dominant pathways with probability fluxes of 55 and 44% for each individual pathway. Transitions between the initial and final states occur with mean first passage times of 31 (forward) and 16 (reverse) μs.
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Affiliation(s)
- Neda Ojaghlou
- Department of Chemistry, University of Richmond, Richmond, Virginia 23173, United States
| | - Justin Airas
- Department of Chemistry, University of Richmond, Richmond, Virginia 23173, United States
| | - Lauren M McRae
- Department of Chemistry, University of Richmond, Richmond, Virginia 23173, United States
| | - Cooper A Taylor
- Department of Chemistry, University of Richmond, Richmond, Virginia 23173, United States
| | - Bill R Miller
- Department of Chemistry, Truman State University, Kirksville, Missouri 63501, United States
| | - Carol A Parish
- Department of Chemistry, University of Richmond, Richmond, Virginia 23173, United States
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Bruyère J, Abada YS, Vitet H, Fontaine G, Deloulme JC, Cès A, Denarier E, Pernet-Gallay K, Andrieux A, Humbert S, Potier MC, Delatour B, Saudou F. Presynaptic APP levels and synaptic homeostasis are regulated by Akt phosphorylation of huntingtin. eLife 2020; 9:56371. [PMID: 32452382 PMCID: PMC7269668 DOI: 10.7554/elife.56371] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/11/2020] [Indexed: 02/06/2023] Open
Abstract
Studies have suggested that amyloid precursor protein (APP) regulates synaptic homeostasis, but the evidence has not been consistent. In particular, signaling pathways controlling APP transport to the synapse in axons and dendrites remain to be identified. Having previously shown that Huntingtin (HTT), the scaffolding protein involved in Huntington’s disease, regulates neuritic transport of APP, we used a microfluidic corticocortical neuronal network-on-a-chip to examine APP transport and localization to the pre- and post-synaptic compartments. We found that HTT, upon phosphorylation by the Ser/Thr kinase Akt, regulates APP transport in axons but not dendrites. Expression of an unphosphorylatable HTT decreased axonal anterograde transport of APP, reduced presynaptic APP levels, and increased synaptic density. Ablating in vivo HTT phosphorylation in APPPS1 mice, which overexpress APP, reduced presynaptic APP levels, restored synapse number and improved learning and memory. The Akt-HTT pathway and axonal transport of APP thus regulate APP presynaptic levels and synapse homeostasis.
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Affiliation(s)
- Julie Bruyère
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, CEA, Grenoble Institut Neurosciences, Grenoble, France
| | - Yah-Se Abada
- Institut du Cerveau et de la Moelle épinière, ICM, Inserm U1127, CNRS UMR 7225, Sorbonne Université, Paris, France
| | - Hélène Vitet
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, CEA, Grenoble Institut Neurosciences, Grenoble, France
| | - Gaëlle Fontaine
- Institut du Cerveau et de la Moelle épinière, ICM, Inserm U1127, CNRS UMR 7225, Sorbonne Université, Paris, France
| | - Jean-Christophe Deloulme
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, CEA, Grenoble Institut Neurosciences, Grenoble, France
| | - Aurélia Cès
- Institut du Cerveau et de la Moelle épinière, ICM, Inserm U1127, CNRS UMR 7225, Sorbonne Université, Paris, France
| | - Eric Denarier
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, CEA, Grenoble Institut Neurosciences, Grenoble, France
| | - Karin Pernet-Gallay
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, CEA, Grenoble Institut Neurosciences, Grenoble, France
| | - Annie Andrieux
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, CEA, Grenoble Institut Neurosciences, Grenoble, France
| | - Sandrine Humbert
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, CEA, Grenoble Institut Neurosciences, Grenoble, France
| | - Marie-Claude Potier
- Institut du Cerveau et de la Moelle épinière, ICM, Inserm U1127, CNRS UMR 7225, Sorbonne Université, Paris, France
| | - Benoît Delatour
- Institut du Cerveau et de la Moelle épinière, ICM, Inserm U1127, CNRS UMR 7225, Sorbonne Université, Paris, France
| | - Frédéric Saudou
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, CEA, Grenoble Institut Neurosciences, Grenoble, France
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Liu C, Zhang CW, Zhou Y, Wong WQ, Lee LC, Ong WY, Yoon SO, Hong W, Fu XY, Soong TW, Koo EH, Stanton LW, Lim KL, Xiao ZC, Dawe GS. APP upregulation contributes to retinal ganglion cell degeneration via JNK3. Cell Death Differ 2017; 25:663-678. [PMID: 29238071 PMCID: PMC5864187 DOI: 10.1038/s41418-017-0005-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 09/29/2017] [Accepted: 10/06/2017] [Indexed: 11/20/2022] Open
Abstract
Axonal injury is a common feature of central nervous system insults. Upregulation of amyloid precursor protein (APP) is observed following central nervous system neurotrauma and is regarded as a marker of central nervous system axonal injury. However, the underlying mechanism by which APP mediates neuronal death remains to be elucidated. Here, we used mouse optic nerve axotomy (ONA) to model central nervous system axonal injury replicating aspects of retinal ganglion cell (RGC) death in optic neuropathies. APP and APP intracellular domain (AICD) were upregulated in retina after ONA and APP knockout reduced Tuj1+ RGC loss. Pathway analysis of microarray data combined with chromatin immunoprecipitation and a luciferase reporter assay demonstrated that AICD interacts with the JNK3 gene locus and regulates JNK3 expression. Moreover, JNK3 was found to be upregulated after ONA and to contribute to Tuj1+ RGC death. APP knockout reduced the ONA-induced enhanced expression of JNK3 and phosphorylated JNK (pJNK). Gamma-secretase inhibitors prevented production of AICD, reduced JNK3 and pJNK expression similarly, and protected Tuj1+ RGCs from ONA-induced cell death. Together these data indicate that ONA induces APP expression and that gamma-secretase cleavage of APP releases AICD, which upregulates JNK3 leading to RGC death. This pathway may be a novel target for neuronal protection in optic neuropathies and other forms of neurotrauma.
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Affiliation(s)
- Chao Liu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 16 Medical Drive, Singapore, 117600, Singapore.,Neurobiology and Ageing Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Singapore Institute for Neurotechnology (SINAPSE), Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Department of Physiology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 2 Medical Drive, Singapore, 117597, Singapore
| | - Cheng-Wu Zhang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Technical University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.,Neurodegeneration Research Laboratory, National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore, 308433, Singapore
| | - Yi Zhou
- Neurobiology and Ageing Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 8 Medical Drive, Singapore, 117596, Singapore
| | - Wan Qing Wong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 16 Medical Drive, Singapore, 117600, Singapore.,Neurobiology and Ageing Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Singapore Institute for Neurotechnology (SINAPSE), Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Stem Cell and Regenerative Biology Group, Genome Institute of Singapore, 60 Biopolis Street, Singapore, 138672, Singapore
| | - Liying Corinne Lee
- Department of Physiology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 2 Medical Drive, Singapore, 117597, Singapore
| | - Wei Yi Ong
- Neurobiology and Ageing Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Department of Anatomy, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 4 Medical Drive, Singapore, 117594, Singapore
| | - Sung Ok Yoon
- Department of Biological Chemistry and Pharmacology, Wexner Medical Center, The Ohio State University, Columbus, OH, 43210, USA
| | - Wanjin Hong
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Proteos, 61 Biopolis Drive, Singapore, 138673, Singapore
| | - Xin-Yuan Fu
- Neurobiology and Ageing Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 8 Medical Drive, Singapore, 117596, Singapore
| | - Tuck Wah Soong
- Neurobiology and Ageing Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Department of Physiology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 2 Medical Drive, Singapore, 117597, Singapore
| | - Edward H Koo
- Department of Physiology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 2 Medical Drive, Singapore, 117597, Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 12 Science Drive 2, Singapore, 117549, Singapore
| | - Lawrence W Stanton
- Stem Cell and Regenerative Biology Group, Genome Institute of Singapore, 60 Biopolis Street, Singapore, 138672, Singapore
| | - Kah-Leong Lim
- Neurobiology and Ageing Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.,Department of Physiology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 2 Medical Drive, Singapore, 117597, Singapore.,Neurodegeneration Research Laboratory, National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore, 308433, Singapore
| | - Zhi-Cheng Xiao
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Melbourne, 3800, Australia. .,The Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical College, Kunming, 650031, China.
| | - Gavin S Dawe
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 16 Medical Drive, Singapore, 117600, Singapore. .,Neurobiology and Ageing Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore. .,Singapore Institute for Neurotechnology (SINAPSE), Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.
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