Alteration of osteoclast activity in childhood cancer survivors: Role of iron and of CB2/TRPV1 receptors.

Childhood cancer survivors (CCS) are predisposed to the onset of osteoporosis (OP). It is known that iron overload induces osteoclasts (OCs) overactivity and that the iron chelator Deferasirox (DFX) can counteract it. The Cannabinoid Receptor type 2 (CB2) and the transient receptor potential vanillo...

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Main Authors: Francesca Rossi, Chiara Tortora, Martina Di Martino, Alessandra Di Paola, Daniela Di Pinto, Maria Maddalena Marrapodi, Maura Argenziano, Elvira Pota
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0271730
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author Francesca Rossi
Chiara Tortora
Martina Di Martino
Alessandra Di Paola
Daniela Di Pinto
Maria Maddalena Marrapodi
Maura Argenziano
Elvira Pota
author_facet Francesca Rossi
Chiara Tortora
Martina Di Martino
Alessandra Di Paola
Daniela Di Pinto
Maria Maddalena Marrapodi
Maura Argenziano
Elvira Pota
author_sort Francesca Rossi
collection DOAJ
description Childhood cancer survivors (CCS) are predisposed to the onset of osteoporosis (OP). It is known that iron overload induces osteoclasts (OCs) overactivity and that the iron chelator Deferasirox (DFX) can counteract it. The Cannabinoid Receptor type 2 (CB2) and the transient receptor potential vanilloid type-1 (TRPV1) are potential therapeutic targets for OP. In this study we isolated OCs from peripheral blood of 20 CCS and investigated osteoclast biomarkers expression and iron metabolism evaluating iron release by OCs and the expression of several molecules involved in its regulation. Moreover, we analyzed the effects of CB2 and TRPV1 stimulation in combination with DFX on osteoclast activity and iron metabolism. We observed, for the first time, an osteoclast hyperactivation in CCS suggesting a role for iron in its development. Moreover, we confirmed the well-known role of CB2 and TRPV1 receptors in bone metabolism, suggesting the receptors as possible key biomarkers of bone damage. Moreover, we demonstrated a promising synergism between pharmacological compounds, stimulating CB2 or inhibiting/desensitizing TRPV1 and DFX, in counteracting osteoclast overactivity in CCS to improve their quality of life.
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spelling doaj.art-9ab5297887194275a4ecb6d2e056c30e2022-12-22T03:40:49ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01177e027173010.1371/journal.pone.0271730Alteration of osteoclast activity in childhood cancer survivors: Role of iron and of CB2/TRPV1 receptors.Francesca RossiChiara TortoraMartina Di MartinoAlessandra Di PaolaDaniela Di PintoMaria Maddalena MarrapodiMaura ArgenzianoElvira PotaChildhood cancer survivors (CCS) are predisposed to the onset of osteoporosis (OP). It is known that iron overload induces osteoclasts (OCs) overactivity and that the iron chelator Deferasirox (DFX) can counteract it. The Cannabinoid Receptor type 2 (CB2) and the transient receptor potential vanilloid type-1 (TRPV1) are potential therapeutic targets for OP. In this study we isolated OCs from peripheral blood of 20 CCS and investigated osteoclast biomarkers expression and iron metabolism evaluating iron release by OCs and the expression of several molecules involved in its regulation. Moreover, we analyzed the effects of CB2 and TRPV1 stimulation in combination with DFX on osteoclast activity and iron metabolism. We observed, for the first time, an osteoclast hyperactivation in CCS suggesting a role for iron in its development. Moreover, we confirmed the well-known role of CB2 and TRPV1 receptors in bone metabolism, suggesting the receptors as possible key biomarkers of bone damage. Moreover, we demonstrated a promising synergism between pharmacological compounds, stimulating CB2 or inhibiting/desensitizing TRPV1 and DFX, in counteracting osteoclast overactivity in CCS to improve their quality of life.https://doi.org/10.1371/journal.pone.0271730
spellingShingle Francesca Rossi
Chiara Tortora
Martina Di Martino
Alessandra Di Paola
Daniela Di Pinto
Maria Maddalena Marrapodi
Maura Argenziano
Elvira Pota
Alteration of osteoclast activity in childhood cancer survivors: Role of iron and of CB2/TRPV1 receptors.
PLoS ONE
title Alteration of osteoclast activity in childhood cancer survivors: Role of iron and of CB2/TRPV1 receptors.
title_full Alteration of osteoclast activity in childhood cancer survivors: Role of iron and of CB2/TRPV1 receptors.
title_fullStr Alteration of osteoclast activity in childhood cancer survivors: Role of iron and of CB2/TRPV1 receptors.
title_full_unstemmed Alteration of osteoclast activity in childhood cancer survivors: Role of iron and of CB2/TRPV1 receptors.
title_short Alteration of osteoclast activity in childhood cancer survivors: Role of iron and of CB2/TRPV1 receptors.
title_sort alteration of osteoclast activity in childhood cancer survivors role of iron and of cb2 trpv1 receptors
url https://doi.org/10.1371/journal.pone.0271730
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