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Article

Bothrops moojeni Venom and Its Components Strongly Affect Osteoclasts’ Maturation and Protein Patterns

1
Laboratory of Genetics, Butantan Institute, São Paulo 05503-900, Brazil
2
The Postgraduate Program in Toxinology, Butantan Institute, São Paulo 05503-900, Brazil
3
Centre of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo 05503-900, Brazil
4
Laboratory of Biochemistry and Biophysics, Butantan Institute, São Paulo 05503-900, Brazil
*
Authors to whom correspondence should be addressed.
Received: 25 May 2021 / Revised: 18 June 2021 / Accepted: 23 June 2021 / Published: 30 June 2021
Osteoclasts (OCs) are important for bone maintenance, calcium balance, and tissue regeneration regulation and are involved in different inflammatory diseases. Our study aimed to evaluate the effect of Bothrops moojeni’s venom and its low and high molecular mass (HMM and LMM) fractions on human peripheral blood mononuclear cell (PBMC)-derived OCs’ in vitro differentiation. Bothrops moojeni, a Brazilian lanced-head viper, presents a rich but not well-explored, venom composition. This venom is a potent inducer of inflammation, which can be used as a tool to investigate the inflammatory process. Human PBMCs were isolated and induced to OC differentiation following routine protocol. On the fourth day of differentiation, the venom was added at different concentrations (5, 0.5, and 0.05 µg/mL). We observed a significant reduction of TRAP+ (tartrate-resistant acid phosphatase) OCs at the concentration of 5 µg/mL. We evaluated the F-actin-rich OCs structure’s integrity; disruption of its integrity reflects bone adsorption capacity. F-actin rings phalloidin staining demonstrated that venom provoked their disruption in treated OCs. HMM, fraction reduces TRAP+ OCs at a concentration of 5 µg/mL and LMM fraction at 1 µg/mL, respectively. Our results indicate morphological changes that the venom induced cause in OCs. We analyzed the pattern of soluble proteins found in the conditioned cell culture medium OCs treated with venom and its fractions using mass spectrometry (LC-MS/IT-Tof). The proteomic analyses indicate the possible pathways and molecular mechanisms involved in OC reduction after the treatment. View Full-Text
Keywords: osteoclasts; differentiation cellular; toxins; Bothrops moojeni osteoclasts; differentiation cellular; toxins; Bothrops moojeni
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MDPI and ACS Style

D’Amélio, F.; Vigerelli, H.; Prieto-da-Silva, Á.R.d.B.; Osório Frare, E.; Batista, I.d.F.C.; Pimenta, D.C.; Kerkis, I. Bothrops moojeni Venom and Its Components Strongly Affect Osteoclasts’ Maturation and Protein Patterns. Toxins 2021, 13, 459. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13070459

AMA Style

D’Amélio F, Vigerelli H, Prieto-da-Silva ÁRdB, Osório Frare E, Batista IdFC, Pimenta DC, Kerkis I. Bothrops moojeni Venom and Its Components Strongly Affect Osteoclasts’ Maturation and Protein Patterns. Toxins. 2021; 13(7):459. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13070459

Chicago/Turabian Style

D’Amélio, Fernanda, Hugo Vigerelli, Álvaro R.d.B. Prieto-da-Silva, Eduardo Osório Frare, Isabel d.F.C. Batista, Daniel C. Pimenta, and Irina Kerkis. 2021. "Bothrops moojeni Venom and Its Components Strongly Affect Osteoclasts’ Maturation and Protein Patterns" Toxins 13, no. 7: 459. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13070459

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