Identification and characterization of proteins that form the inner core Ixodes scapularis tick attachment cement layer

Abstract Ixodes scapularis long-term blood feeding behavior is facilitated by a tick secreted bio adhesive (tick cement) that attaches tick mouthparts to skin tissue and prevents the host from dislodging the attached tick. Understanding tick cement formation is highly sought after as its disruption...

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Main Authors: Albert Mulenga, Zeljko Radulovic, Lindsay Porter, Taylor Hollman Britten, Tae Kwon Kim, Lucas Tirloni, Alex Kiarie Gaithuma, Grace O. Adeniyi-Ipadeola, Jolene K. Dietrich, James J. Moresco, John R. Yates
Format: Article
Language:English
Published: Nature Portfolio 2022-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-24881-4
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author Albert Mulenga
Zeljko Radulovic
Lindsay Porter
Taylor Hollman Britten
Tae Kwon Kim
Lucas Tirloni
Alex Kiarie Gaithuma
Grace O. Adeniyi-Ipadeola
Jolene K. Dietrich
James J. Moresco
John R. Yates
author_facet Albert Mulenga
Zeljko Radulovic
Lindsay Porter
Taylor Hollman Britten
Tae Kwon Kim
Lucas Tirloni
Alex Kiarie Gaithuma
Grace O. Adeniyi-Ipadeola
Jolene K. Dietrich
James J. Moresco
John R. Yates
author_sort Albert Mulenga
collection DOAJ
description Abstract Ixodes scapularis long-term blood feeding behavior is facilitated by a tick secreted bio adhesive (tick cement) that attaches tick mouthparts to skin tissue and prevents the host from dislodging the attached tick. Understanding tick cement formation is highly sought after as its disruption will prevent tick feeding. This study describes proteins that form the inner core layer of I. scapularis tick cement as disrupting these proteins will likely stop formation of the outer cortical layer. The inner core cement layer completes formation by 24 h of tick attachment. Thus, we used laser-capture microdissection to isolate cement from cryosections of 6 h and 24 h tick attachment sites and to distinguish between early and late inner core cement proteins. LC–MS/MS analysis identified 138 tick cement proteins (TCPs) of which 37 and 35 were unique in cement of 6 and 24 h attached ticks respectively. We grouped TCPs in 14 functional categories: cuticular protein (16%), tick specific proteins of unknown function, cytoskeletal proteins, and enzymes (13% each), enzymes (10%), antioxidant, glycine rich, scaffolding, heat shock, histone, histamine binding, proteases and protease inhibitors, and miscellaneous (3–6% each). Gene ontology analysis confirm that TCPs are enriched for bio adhesive properties. Our data offer insights into tick cement bonding patterns and set the foundation for understanding the molecular basis of I. scapularis tick cement formation.
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spelling doaj.art-b72626fb78f0460ebeeb45641900ac342022-12-22T02:56:38ZengNature PortfolioScientific Reports2045-23222022-12-0112111410.1038/s41598-022-24881-4Identification and characterization of proteins that form the inner core Ixodes scapularis tick attachment cement layerAlbert Mulenga0Zeljko Radulovic1Lindsay Porter2Taylor Hollman Britten3Tae Kwon Kim4Lucas Tirloni5Alex Kiarie Gaithuma6Grace O. Adeniyi-Ipadeola7Jolene K. Dietrich8James J. Moresco9John R. Yates10Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M UniversityDepartment of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M UniversityDepartment of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M UniversityDepartment of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M UniversityDepartment of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M UniversityDepartment of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M UniversityDepartment of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M UniversityDepartment of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M UniversityDepartment of Molecular Medicine, The Scripps Research InstituteDepartment of Molecular Medicine, The Scripps Research InstituteDepartment of Molecular Medicine, The Scripps Research InstituteAbstract Ixodes scapularis long-term blood feeding behavior is facilitated by a tick secreted bio adhesive (tick cement) that attaches tick mouthparts to skin tissue and prevents the host from dislodging the attached tick. Understanding tick cement formation is highly sought after as its disruption will prevent tick feeding. This study describes proteins that form the inner core layer of I. scapularis tick cement as disrupting these proteins will likely stop formation of the outer cortical layer. The inner core cement layer completes formation by 24 h of tick attachment. Thus, we used laser-capture microdissection to isolate cement from cryosections of 6 h and 24 h tick attachment sites and to distinguish between early and late inner core cement proteins. LC–MS/MS analysis identified 138 tick cement proteins (TCPs) of which 37 and 35 were unique in cement of 6 and 24 h attached ticks respectively. We grouped TCPs in 14 functional categories: cuticular protein (16%), tick specific proteins of unknown function, cytoskeletal proteins, and enzymes (13% each), enzymes (10%), antioxidant, glycine rich, scaffolding, heat shock, histone, histamine binding, proteases and protease inhibitors, and miscellaneous (3–6% each). Gene ontology analysis confirm that TCPs are enriched for bio adhesive properties. Our data offer insights into tick cement bonding patterns and set the foundation for understanding the molecular basis of I. scapularis tick cement formation.https://doi.org/10.1038/s41598-022-24881-4
spellingShingle Albert Mulenga
Zeljko Radulovic
Lindsay Porter
Taylor Hollman Britten
Tae Kwon Kim
Lucas Tirloni
Alex Kiarie Gaithuma
Grace O. Adeniyi-Ipadeola
Jolene K. Dietrich
James J. Moresco
John R. Yates
Identification and characterization of proteins that form the inner core Ixodes scapularis tick attachment cement layer
Scientific Reports
title Identification and characterization of proteins that form the inner core Ixodes scapularis tick attachment cement layer
title_full Identification and characterization of proteins that form the inner core Ixodes scapularis tick attachment cement layer
title_fullStr Identification and characterization of proteins that form the inner core Ixodes scapularis tick attachment cement layer
title_full_unstemmed Identification and characterization of proteins that form the inner core Ixodes scapularis tick attachment cement layer
title_short Identification and characterization of proteins that form the inner core Ixodes scapularis tick attachment cement layer
title_sort identification and characterization of proteins that form the inner core ixodes scapularis tick attachment cement layer
url https://doi.org/10.1038/s41598-022-24881-4
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