Metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.

It is widely recognized that innate macrophage immune reactions to implant debris are central to the inflammatory responses that drive biologic implant failure over the long term. Less common, adaptive lymphocyte immune reactions to implant debris, such as delayed type hypersensitivity (DTH), can al...

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Autores principales:	Lauryn Samelko, Marco Caicedo, Kyron McAllister, Joshua Jacobs, Nadim James Hallab
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4d492f2d7ed54ac5a40d6cc740704296
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spelling	oai:doaj.org-article:4d492f2d7ed54ac5a40d6cc7407042962021-11-25T06:19:08ZMetal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.1932-620310.1371/journal.pone.0251885https://doaj.org/article/4d492f2d7ed54ac5a40d6cc7407042962021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251885https://doaj.org/toc/1932-6203It is widely recognized that innate macrophage immune reactions to implant debris are central to the inflammatory responses that drive biologic implant failure over the long term. Less common, adaptive lymphocyte immune reactions to implant debris, such as delayed type hypersensitivity (DTH), can also affect implant performance. It is unknown which key patient factors, if any, mediate these adaptive immune responses that potentiate particle/macrophage mediated osteolysis. The objective of this investigation was to determine to what degree known adaptive immune responses to metal implant debris can affect particle-induced osteolysis (PIO); and if this pathomechanism is dependent on: 1) innate immune danger signaling, i.e., NLRP3 inflammasome activity, 2) sex, and/or 3) age. We used an established murine calvaria model of PIO using male and female wild-type C57BL/6 vs. Caspase-1 deficient mice as well as young (12-16 weeks old) vs. aged (18-24 months old) female and male C57BL/6 mice. After induction of metal-DTH, and Cobalt-alloy particle (ASTM F-75, 0.4um median diameter) calvaria challenge, bone resorption was assessed using quantitative micro-computed tomography (micro-CT) analysis and immune responses were assessed by measuring paw inflammation, lymphocyte transformation test (LTT) reactivity and adaptive immune cytokines IFN-gamma and IL-17 (ELISA). Younger aged C57BL/6 female mice exhibited the highest rate and severity of metal sensitivity lymphocyte responses that also translated into higher PIO compared to any other experimental group. The absence of inflammasome/caspase-1 activity significantly suppressed DTH metal-reactivity and osteolysis in both male and female Caspase-1 deficient mice. These murine model results indicate that young female mice are more predisposed to metal-DTH augmented inflammatory responses to wear debris, which is highly influenced by active NLRP3 inflammasome/caspase-1 danger signaling. If these results are clinically meaningful for orthopedic patients, then younger female individuals should be appropriately assessed and followed for DTH derived peri-implant complications.Lauryn SamelkoMarco CaicedoKyron McAllisterJoshua JacobsNadim James HallabPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251885 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lauryn Samelko Marco Caicedo Kyron McAllister Joshua Jacobs Nadim James Hallab Metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.
description	It is widely recognized that innate macrophage immune reactions to implant debris are central to the inflammatory responses that drive biologic implant failure over the long term. Less common, adaptive lymphocyte immune reactions to implant debris, such as delayed type hypersensitivity (DTH), can also affect implant performance. It is unknown which key patient factors, if any, mediate these adaptive immune responses that potentiate particle/macrophage mediated osteolysis. The objective of this investigation was to determine to what degree known adaptive immune responses to metal implant debris can affect particle-induced osteolysis (PIO); and if this pathomechanism is dependent on: 1) innate immune danger signaling, i.e., NLRP3 inflammasome activity, 2) sex, and/or 3) age. We used an established murine calvaria model of PIO using male and female wild-type C57BL/6 vs. Caspase-1 deficient mice as well as young (12-16 weeks old) vs. aged (18-24 months old) female and male C57BL/6 mice. After induction of metal-DTH, and Cobalt-alloy particle (ASTM F-75, 0.4um median diameter) calvaria challenge, bone resorption was assessed using quantitative micro-computed tomography (micro-CT) analysis and immune responses were assessed by measuring paw inflammation, lymphocyte transformation test (LTT) reactivity and adaptive immune cytokines IFN-gamma and IL-17 (ELISA). Younger aged C57BL/6 female mice exhibited the highest rate and severity of metal sensitivity lymphocyte responses that also translated into higher PIO compared to any other experimental group. The absence of inflammasome/caspase-1 activity significantly suppressed DTH metal-reactivity and osteolysis in both male and female Caspase-1 deficient mice. These murine model results indicate that young female mice are more predisposed to metal-DTH augmented inflammatory responses to wear debris, which is highly influenced by active NLRP3 inflammasome/caspase-1 danger signaling. If these results are clinically meaningful for orthopedic patients, then younger female individuals should be appropriately assessed and followed for DTH derived peri-implant complications.
format	article
author	Lauryn Samelko Marco Caicedo Kyron McAllister Joshua Jacobs Nadim James Hallab
author_facet	Lauryn Samelko Marco Caicedo Kyron McAllister Joshua Jacobs Nadim James Hallab
author_sort	Lauryn Samelko
title	Metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.
title_short	Metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.
title_full	Metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.
title_fullStr	Metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.
title_full_unstemmed	Metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.
title_sort	metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/4d492f2d7ed54ac5a40d6cc740704296
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Metal-induced delayed type hypersensitivity responses potentiate particle induced osteolysis in a sex and age dependent manner.

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