PTPRD and DCC Are Novel BACE1 Substrates Differentially Expressed in Alzheimer’s Disease: A Data Mining and Bioinformatics Study

The β-site Amyloid precursor protein Cleaving Enzyme 1 (BACE1) is an extensively studied therapeutic target for Alzheimer’s disease (AD), owing to its role in the production of neurotoxic amyloid beta (Aβ) peptides. However, despite numerous BACE1 inhibitors entering clinical trials, none have succe...

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Main Authors: Hannah A. Taylor, Katie J. Simmons, Eva M. Clavane, Christopher J. Trevelyan, Jane M. Brown, Lena Przemyłska, Nicole T. Watt, Laura C. Matthews, Paul J. Meakin
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/9/4568
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author Hannah A. Taylor
Katie J. Simmons
Eva M. Clavane
Christopher J. Trevelyan
Jane M. Brown
Lena Przemyłska
Nicole T. Watt
Laura C. Matthews
Paul J. Meakin
author_facet Hannah A. Taylor
Katie J. Simmons
Eva M. Clavane
Christopher J. Trevelyan
Jane M. Brown
Lena Przemyłska
Nicole T. Watt
Laura C. Matthews
Paul J. Meakin
author_sort Hannah A. Taylor
collection DOAJ
description The β-site Amyloid precursor protein Cleaving Enzyme 1 (BACE1) is an extensively studied therapeutic target for Alzheimer’s disease (AD), owing to its role in the production of neurotoxic amyloid beta (Aβ) peptides. However, despite numerous BACE1 inhibitors entering clinical trials, none have successfully improved AD pathogenesis, despite effectively lowering Aβ concentrations. This can, in part, be attributed to an incomplete understanding of BACE1, including its physiological functions and substrate specificity. We propose that BACE1 has additional important physiological functions, mediated through substrates still to be identified. Thus, to address this, we computationally analysed a list of 533 BACE1 dependent proteins, identified from the literature, for potential BACE1 substrates, and compared them against proteins differentially expressed in AD. We identified 15 novel BACE1 substrates that were specifically altered in AD. To confirm our analysis, we validated Protein tyrosine phosphatase receptor type D (PTPRD) and Netrin receptor DCC (DCC) using Western blotting. These findings shed light on the BACE1 inhibitor failings and could enable the design of substrate-specific inhibitors to target alternative BACE1 substrates. Furthermore, it gives us a greater understanding of the roles of BACE1 and its dysfunction in AD.
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spelling doaj.art-ae277e114f73481a997d54c0043902222023-11-23T08:19:05ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-04-01239456810.3390/ijms23094568PTPRD and DCC Are Novel BACE1 Substrates Differentially Expressed in Alzheimer’s Disease: A Data Mining and Bioinformatics StudyHannah A. Taylor0Katie J. Simmons1Eva M. Clavane2Christopher J. Trevelyan3Jane M. Brown4Lena Przemyłska5Nicole T. Watt6Laura C. Matthews7Paul J. Meakin8Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKLeeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKLeeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKLeeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKLeeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKLeeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKLeeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKLeeds Institute of Medical Research, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKLeeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UKThe β-site Amyloid precursor protein Cleaving Enzyme 1 (BACE1) is an extensively studied therapeutic target for Alzheimer’s disease (AD), owing to its role in the production of neurotoxic amyloid beta (Aβ) peptides. However, despite numerous BACE1 inhibitors entering clinical trials, none have successfully improved AD pathogenesis, despite effectively lowering Aβ concentrations. This can, in part, be attributed to an incomplete understanding of BACE1, including its physiological functions and substrate specificity. We propose that BACE1 has additional important physiological functions, mediated through substrates still to be identified. Thus, to address this, we computationally analysed a list of 533 BACE1 dependent proteins, identified from the literature, for potential BACE1 substrates, and compared them against proteins differentially expressed in AD. We identified 15 novel BACE1 substrates that were specifically altered in AD. To confirm our analysis, we validated Protein tyrosine phosphatase receptor type D (PTPRD) and Netrin receptor DCC (DCC) using Western blotting. These findings shed light on the BACE1 inhibitor failings and could enable the design of substrate-specific inhibitors to target alternative BACE1 substrates. Furthermore, it gives us a greater understanding of the roles of BACE1 and its dysfunction in AD.https://www.mdpi.com/1422-0067/23/9/4568Alzheimer’s diseasebeta secretase 1 (BACE1)Netrin receptor DCCprotein tyrosine phosphatase receptor type D (PTPRD)BACE1 substrates
spellingShingle Hannah A. Taylor
Katie J. Simmons
Eva M. Clavane
Christopher J. Trevelyan
Jane M. Brown
Lena Przemyłska
Nicole T. Watt
Laura C. Matthews
Paul J. Meakin
PTPRD and DCC Are Novel BACE1 Substrates Differentially Expressed in Alzheimer’s Disease: A Data Mining and Bioinformatics Study
International Journal of Molecular Sciences
Alzheimer’s disease
beta secretase 1 (BACE1)
Netrin receptor DCC
protein tyrosine phosphatase receptor type D (PTPRD)
BACE1 substrates
title PTPRD and DCC Are Novel BACE1 Substrates Differentially Expressed in Alzheimer’s Disease: A Data Mining and Bioinformatics Study
title_full PTPRD and DCC Are Novel BACE1 Substrates Differentially Expressed in Alzheimer’s Disease: A Data Mining and Bioinformatics Study
title_fullStr PTPRD and DCC Are Novel BACE1 Substrates Differentially Expressed in Alzheimer’s Disease: A Data Mining and Bioinformatics Study
title_full_unstemmed PTPRD and DCC Are Novel BACE1 Substrates Differentially Expressed in Alzheimer’s Disease: A Data Mining and Bioinformatics Study
title_short PTPRD and DCC Are Novel BACE1 Substrates Differentially Expressed in Alzheimer’s Disease: A Data Mining and Bioinformatics Study
title_sort ptprd and dcc are novel bace1 substrates differentially expressed in alzheimer s disease a data mining and bioinformatics study
topic Alzheimer’s disease
beta secretase 1 (BACE1)
Netrin receptor DCC
protein tyrosine phosphatase receptor type D (PTPRD)
BACE1 substrates
url https://www.mdpi.com/1422-0067/23/9/4568
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