Selective Modulation of Osteoclast Function by <i>Bothrops moojeni</i> Venom and Its Fractions: Implications for Therapeutic Targeting in Bone Diseases

Our study explores the differential effects of <i>Bothrops moojeni</i> venom and its fractions on osteoclast (OC) morphology, function, and osteoclastogenesis. The crude venom and its high-molecular-weight (HMW) fraction disrupt critical OC processes, including F-actin ring formation and...

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Main Authors: Fernanda D’Amélio, Hugo Vigerelli, Isabel de Fátima Correia Batista, Rodrigo Pinheiro Araldi, Álvaro R. B. Prieto-da-Silva, Daniel Carvalho Pimenta, Irina Kerkis
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Language:English
Published: MDPI AG 2025-03-01
Series:Toxins
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Online Access:https://www.mdpi.com/2072-6651/17/3/141
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author Fernanda D’Amélio
Hugo Vigerelli
Isabel de Fátima Correia Batista
Rodrigo Pinheiro Araldi
Álvaro R. B. Prieto-da-Silva
Daniel Carvalho Pimenta
Irina Kerkis
author_facet Fernanda D’Amélio
Hugo Vigerelli
Isabel de Fátima Correia Batista
Rodrigo Pinheiro Araldi
Álvaro R. B. Prieto-da-Silva
Daniel Carvalho Pimenta
Irina Kerkis
author_sort Fernanda D’Amélio
collection DOAJ
description Our study explores the differential effects of <i>Bothrops moojeni</i> venom and its fractions on osteoclast (OC) morphology, function, and osteoclastogenesis. The crude venom and its high-molecular-weight (HMW) fraction disrupt critical OC processes, including F-actin ring formation and mitochondrial distribution, thereby impairing bone resorption. These components primarily target cytoskeletal integrity and transcription regulation, with the OBSCN gene playing a direct role in OC function. In contrast, the low-molecular-weight (LMW) fraction selectively modulates OCs without significant cytoskeletal alterations. It influences vital cellular signaling pathways, notably through FNIP1 and FNIP2, essential for OC differentiation and function. This suggests a more targeted therapeutic approach with potentially fewer off-target effects. The venom also alters cytokine production, increasing IL-6 and IL-10 levels. Elevated IL-6 levels promote osteoclastogenesis and bone resorption, while IL-10 appears to counterbalance these effects through a regulatory feedback mechanism. Secretome analysis reveals that the crude venom and HMW fraction disrupt proteins involved in membrane trafficking and structural integrity. In contrast, the LMW fraction influences matrix remodeling, energy metabolism, and gene regulation. Gene interaction analysis LMW fraction post-treatment identifies FNIP1 and FNIP2 as critical targets involved in osteoclastogenesis. The observed changes in gene expression, including those related to immune response, energy metabolism, and chromatin remodeling, provide insights into the venom’s impact on bone health. Overall, the LMW fraction shows promise for drug development due to its selective implications and potential for fewer side effects, offering a more precise approach to treating bone diseases.
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spelling doaj-art-5715669141ad4bd69e6d6b0ef8ebbc032025-08-20T01:48:56ZengMDPI AGToxins2072-66512025-03-0117314110.3390/toxins17030141Selective Modulation of Osteoclast Function by <i>Bothrops moojeni</i> Venom and Its Fractions: Implications for Therapeutic Targeting in Bone DiseasesFernanda D’Amélio0Hugo Vigerelli1Isabel de Fátima Correia Batista2Rodrigo Pinheiro Araldi3Álvaro R. B. Prieto-da-Silva4Daniel Carvalho Pimenta5Irina Kerkis6Laboratory of Genetics, Butantan Institute, São Paulo 05503-900, BrazilCentre of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo 05503-900, BrazilCentre of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo 05503-900, BrazilLaboratory of Genetics, Butantan Institute, São Paulo 05503-900, BrazilLaboratory of Genetics, Butantan Institute, São Paulo 05503-900, BrazilLaboratory of Biochemistry and Biophysics, Butantan Institute, São Paulo 05503-900, BrazilLaboratory of Genetics, Butantan Institute, São Paulo 05503-900, BrazilOur study explores the differential effects of <i>Bothrops moojeni</i> venom and its fractions on osteoclast (OC) morphology, function, and osteoclastogenesis. The crude venom and its high-molecular-weight (HMW) fraction disrupt critical OC processes, including F-actin ring formation and mitochondrial distribution, thereby impairing bone resorption. These components primarily target cytoskeletal integrity and transcription regulation, with the OBSCN gene playing a direct role in OC function. In contrast, the low-molecular-weight (LMW) fraction selectively modulates OCs without significant cytoskeletal alterations. It influences vital cellular signaling pathways, notably through FNIP1 and FNIP2, essential for OC differentiation and function. This suggests a more targeted therapeutic approach with potentially fewer off-target effects. The venom also alters cytokine production, increasing IL-6 and IL-10 levels. Elevated IL-6 levels promote osteoclastogenesis and bone resorption, while IL-10 appears to counterbalance these effects through a regulatory feedback mechanism. Secretome analysis reveals that the crude venom and HMW fraction disrupt proteins involved in membrane trafficking and structural integrity. In contrast, the LMW fraction influences matrix remodeling, energy metabolism, and gene regulation. Gene interaction analysis LMW fraction post-treatment identifies FNIP1 and FNIP2 as critical targets involved in osteoclastogenesis. The observed changes in gene expression, including those related to immune response, energy metabolism, and chromatin remodeling, provide insights into the venom’s impact on bone health. Overall, the LMW fraction shows promise for drug development due to its selective implications and potential for fewer side effects, offering a more precise approach to treating bone diseases.https://www.mdpi.com/2072-6651/17/3/141<i>Bothrops moojeni</i>high- and low-molecular-weight fractionosteoclastmorphologyfunctionsecretome
spellingShingle Fernanda D’Amélio
Hugo Vigerelli
Isabel de Fátima Correia Batista
Rodrigo Pinheiro Araldi
Álvaro R. B. Prieto-da-Silva
Daniel Carvalho Pimenta
Irina Kerkis
Selective Modulation of Osteoclast Function by <i>Bothrops moojeni</i> Venom and Its Fractions: Implications for Therapeutic Targeting in Bone Diseases
Toxins
<i>Bothrops moojeni</i>
high- and low-molecular-weight fraction
osteoclast
morphology
function
secretome
title Selective Modulation of Osteoclast Function by <i>Bothrops moojeni</i> Venom and Its Fractions: Implications for Therapeutic Targeting in Bone Diseases
title_full Selective Modulation of Osteoclast Function by <i>Bothrops moojeni</i> Venom and Its Fractions: Implications for Therapeutic Targeting in Bone Diseases
title_fullStr Selective Modulation of Osteoclast Function by <i>Bothrops moojeni</i> Venom and Its Fractions: Implications for Therapeutic Targeting in Bone Diseases
title_full_unstemmed Selective Modulation of Osteoclast Function by <i>Bothrops moojeni</i> Venom and Its Fractions: Implications for Therapeutic Targeting in Bone Diseases
title_short Selective Modulation of Osteoclast Function by <i>Bothrops moojeni</i> Venom and Its Fractions: Implications for Therapeutic Targeting in Bone Diseases
title_sort selective modulation of osteoclast function by i bothrops moojeni i venom and its fractions implications for therapeutic targeting in bone diseases
topic <i>Bothrops moojeni</i>
high- and low-molecular-weight fraction
osteoclast
morphology
function
secretome
url https://www.mdpi.com/2072-6651/17/3/141
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