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Morais KLP, Ciccone L, Stura E, Alvarez-Flores MP, Mourier G, Driessche MV, Sciani JM, Iqbal A, Kalil SP, Pereira GJ, Marques-Porto R, Cunegundes P, Juliano L, Servent D, Chudzinski-Tavassi AM. Structural and functional properties of the Kunitz-type and C-terminal domains of Amblyomin-X supporting its antitumor activity. Front Mol Biosci 2023; 10:1072751. [PMID: 36845546 PMCID: PMC9948614 DOI: 10.3389/fmolb.2023.1072751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/12/2023] [Indexed: 02/11/2023] Open
Abstract
Amblyomin-X is a Kunitz-type FXa inhibitor identified through the transcriptome analysis of the salivary gland from Amblyomma sculptum tick. This protein consists of two domains of equivalent size, triggers apoptosis in different tumor cell lines, and promotes regression of tumor growth, and reduction of metastasis. To study the structural properties and functional roles of the N-terminal (N-ter) and C-terminal (C-ter) domains of Amblyomin-X, we synthesized them by solid-phase peptide synthesis, solved the X-Ray crystallographic structure of the N-ter domain, confirming its Kunitz-type signature, and studied their biological properties. We show here that the C-ter domain is responsible for the uptake of Amblyomin-X by tumor cells and highlight the ability of this domain to deliver intracellular cargo by the strong enhancement of the intracellular detection of molecules with low cellular-uptake efficiency (p15) after their coupling with the C-ter domain. In contrast, the N-ter Kunitz domain of Amblyomin-X is not capable of crossing through the cell membrane but is associated with tumor cell cytotoxicity when it is microinjected into the cells or fused to TAT cell-penetrating peptide. Additionally, we identify the minimum length C-terminal domain named F2C able to enter in the SK-MEL-28 cells and induces dynein chains gene expression modulation, a molecular motor that plays a role in the uptake and intracellular trafficking of Amblyomin-X.
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Affiliation(s)
- K. L. P. Morais
- Center of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo, Brazil,Laboratory of Development and Innovation, Butantan Institute, São Paulo, Brazil,Department of Biochemistry, Federal University of São Paulo, São Paulo, Brazil
| | - L. Ciccone
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA SIMoS, Gif-sur-Yvette, France,Department of Pharmacy, University of Pisa, Pisa, Italy
| | - E. Stura
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA SIMoS, Gif-sur-Yvette, France
| | - M. P. Alvarez-Flores
- Center of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo, Brazil
| | - G. Mourier
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA SIMoS, Gif-sur-Yvette, France
| | - M. Vanden Driessche
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA SIMoS, Gif-sur-Yvette, France
| | - J. M. Sciani
- Center of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo, Brazil
| | - A. Iqbal
- Center of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo, Brazil,Laboratory of Development and Innovation, Butantan Institute, São Paulo, Brazil
| | - S. P. Kalil
- Center of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo, Brazil
| | - G. J. Pereira
- Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil
| | - R. Marques-Porto
- Laboratory of Development and Innovation, Butantan Institute, São Paulo, Brazil
| | - P. Cunegundes
- Center of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo, Brazil,Department of Biochemistry, Federal University of São Paulo, São Paulo, Brazil
| | - L. Juliano
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil
| | - D. Servent
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA SIMoS, Gif-sur-Yvette, France,*Correspondence: D. Servent, ; A. M. Chudzinski-Tavassi,
| | - A. M. Chudzinski-Tavassi
- Center of Excellence in New Target Discovery (CENTD), Butantan Institute, São Paulo, Brazil,Laboratory of Development and Innovation, Butantan Institute, São Paulo, Brazil,*Correspondence: D. Servent, ; A. M. Chudzinski-Tavassi,
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Queiroz VC, Sales SMC, Nicoliche T, Erustes AG, Pereira GJ, Smaili SS, Stilhano RS, Caetano AL. DEVELOPMENT OF SCAFFOLD-FREE SPHEROIDS OVEREXPRESSING ALPHA-SYNUCLEIN IN HUMAN NEUROBLASTOMA SH-SY5Y AS A MODEL OF PARKINSON'S DISEASE. Cytotherapy 2021. [DOI: 10.1016/j.jcyt.2021.02.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Antunes F, Pereira GJ, Jasiulionis MG, Bincoletto C, Smaili SS. Nutritional shortage augments cisplatin-effects on murine melanoma cells. Chem Biol Interact 2017; 281:89-97. [PMID: 29273566 DOI: 10.1016/j.cbi.2017.12.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/25/2017] [Accepted: 12/18/2017] [Indexed: 01/06/2023]
Abstract
Melanoma incidence increases every year worldwide and is responsible for 80% of skin cancer deaths. Due to its metastatic potential and resistance to almost any treatments such as chemo, radio, immune and targeted-therapy, the patients still have a poor prognosis, especially at metastatic stage. Considering that, it is crucial to find new therapeutic approaches to overcome melanoma resistance. Here we investigated the effect of cisplatin (CDDP), one of the chemotherapeutic agents used for melanoma treatment, in association with nutritional deprivation in murine melanoma cell lines. Cell death and autophagy were evaluated after the treatment with cisplatin, nutritional deprivation and its association using an in vitro model of murine melanocytes malignant transformation to metastatic melanoma. Our results showed that nutritional deprivation augmented cell death induced by cisplatin in melanoma cells, especially at the metastatic subtype, with slight effects on melanocytes. Mechanistic studies revealed that although autophagy was present at high levels in basal conditions in melanoma cells, was not essential for cell death process that involved mitochondrial damage, reactive oxygen species production and possible glycolysis inhibition. In conclusion, nutritional shortage in combination with chemotherapeutic drugs as cisplatin can be a valuable new therapeutic strategy to overcome melanoma resistance.
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Affiliation(s)
- F Antunes
- Universidade Federal de São Paulo, Escola Paulista de Medicina Department of Pharmacology (EPM/UNIFESP), São Paulo, SP, Brazil
| | - G J Pereira
- Universidade Federal de São Paulo, Escola Paulista de Medicina Department of Pharmacology (EPM/UNIFESP), São Paulo, SP, Brazil.
| | - M G Jasiulionis
- Universidade Federal de São Paulo, Escola Paulista de Medicina Department of Pharmacology (EPM/UNIFESP), São Paulo, SP, Brazil
| | - C Bincoletto
- Universidade Federal de São Paulo, Escola Paulista de Medicina Department of Pharmacology (EPM/UNIFESP), São Paulo, SP, Brazil
| | - S S Smaili
- Universidade Federal de São Paulo, Escola Paulista de Medicina Department of Pharmacology (EPM/UNIFESP), São Paulo, SP, Brazil.
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