1
|
Guo X, Fu Y, Peng J, Fu Y, Dong S, Ding RB, Qi X, Bao J. Emerging anticancer potential and mechanisms of snake venom toxins: A review. Int J Biol Macromol 2024; 269:131990. [PMID: 38704067 DOI: 10.1016/j.ijbiomac.2024.131990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/13/2024] [Accepted: 04/28/2024] [Indexed: 05/06/2024]
Abstract
Animal-derived venom, like snake venom, has been proven to be valuable natural resources for the drug development. Previously, snake venom was mainly investigated in its pharmacological activities in regulating coagulation, vasodilation, and cardiovascular function, and several marketed cardiovascular drugs were successfully developed from snake venom. In recent years, snake venom fractions have been demonstrated with anticancer properties of inducing apoptotic and autophagic cell death, restraining proliferation, suppressing angiogenesis, inhibiting cell adhesion and migration, improving immunity, and so on. A number of active anticancer enzymes and peptides have been identified from snake venom toxins, such as L-amino acid oxidases (LAAOs), phospholipase A2 (PLA2), metalloproteinases (MPs), three-finger toxins (3FTxs), serine proteinases (SPs), disintegrins, C-type lectin-like proteins (CTLPs), cell-penetrating peptides, cysteine-rich secretory proteins (CRISPs). In this review, we focus on summarizing these snake venom-derived anticancer components on their anticancer activities and underlying mechanisms. We will also discuss their potential to be developed as anticancer drugs in the future.
Collapse
Affiliation(s)
- Xijun Guo
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China
| | - Yuanfeng Fu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China
| | - Junbo Peng
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China
| | - Ying Fu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China
| | - Shuai Dong
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China
| | - Ren-Bo Ding
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Xingzhu Qi
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China.
| | - Jiaolin Bao
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China.
| |
Collapse
|
2
|
Offor BC, Piater LA. Snake venom toxins: Potential anticancer therapeutics. J Appl Toxicol 2024; 44:666-685. [PMID: 37697914 DOI: 10.1002/jat.4544] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/21/2023] [Accepted: 08/29/2023] [Indexed: 09/13/2023]
Abstract
Snake venom contains a cocktail of compounds dominated by proteins and peptides, which make up the toxin. The toxin components of snake venom attack several targets in the human body including the neuromuscular system, kidney and blood coagulation system and cause pathologies. As such, the venom toxins can be managed and used for the treatment of these diseases. In this regard, Captopril used in the treatment of cardiovascular diseases was the first animal venom toxin-based drug approved by the US Food and Drug Administration and the European Medicines Agency. Cancers cause morbidity and mortality worldwide. Due to side effects associated with the current cancer treatments including chemotherapy, radiotherapy, immunotherapy, hormonal therapy and surgery, there is a need to improve the efficacy of current treatments and/or develop novel drugs from natural sources including animal toxin-based drugs. There is a long history of earlier and ongoing studies implicating snake venom toxins as potential anticancer therapies. Here, we review the role of crude snake venoms and toxins including phospholipase A2, L-amino acid oxidase, C-type lectin and disintegrin as potential anticancer agents tested in cancer cell lines and animal tumour models in comparison to normal cell lines. Some of the anti-tumour activities of snake venom toxins include induction of cytotoxicity, apoptosis, cell cycle arrest and inhibition of metastasis, angiogenesis and tumour growth. We thus propose the advancement of multidisciplinary approaches to more pre-clinical and clinical studies for enhanced bioavailability and targeted delivery of snake venom toxin-based anticancer drugs.
Collapse
Affiliation(s)
- Benedict C Offor
- Department of Biochemistry, University of Johannesburg, Auckland Park, South Africa
| | - Lizelle A Piater
- Department of Biochemistry, University of Johannesburg, Auckland Park, South Africa
| |
Collapse
|
3
|
Vasconcelos AA, Estrada JC, Caruso IP, Kurtenbach E, Zingali RB, Almeida FCL. Toward the mechanism of jarastatin (rJast) inhibition of the integrin αVβ3. Int J Biol Macromol 2024; 255:128078. [PMID: 37972836 DOI: 10.1016/j.ijbiomac.2023.128078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/04/2023] [Accepted: 11/12/2023] [Indexed: 11/19/2023]
Abstract
Disintegrins are a family of cysteine-rich small proteins that were first identified in snake venom. The high divergence of disintegrins gave rise to a plethora of functions, all related to the interaction with integrins. Disintegrins evolved to interact selectively with different integrins, eliciting many physiological outcomes and being promising candidates for the therapy of many pathologies. We used NMR to determine the structure and dynamics of the recombinant disintegrin jarastatin (rJast) and its interaction with the cancer-related integrin αVβ3. rJast displayed the canonical fold of a medium-sized disintegrin and showed complex dynamic in multiple timescales. We used NMR experiments to map the interaction of rJast with αVβ3, and molecular docking followed by molecular dynamics (MD) simulation to describe the first structural model of a disintegrin/integrin complex. We showed that not only the RGD loop participates in the interaction, but also the N-terminal domain. rJast plasticity was essential for the interaction with αVβ3 and correlated with the main modes of motion depicted in the MD trajectories. In summary, our study provides novel structural insights that enhance our comprehension of the mechanisms underlying disintegrin functionality.
Collapse
Affiliation(s)
- Ariana A Vasconcelos
- Laboratório de RMN de Biomoléculas, Instituto de Bioquímica Médica Leopoldo de Meis (IBqM), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Centro Nacional de Ressonância Magnética Nuclear (CNRMN), Centro Nacional de Biologia Estrutural e Bioimagem (CENABIO), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jorge C Estrada
- Laboratório de Hemostase e Venenos, Instituto de Bioquímica Médica Leopoldo de Meis (IBqM), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Icaro P Caruso
- Multiuser Center for Biomolecular Innovation (CMIB), Department of Physics, São Paulo State University (UNESP), São Jose do Rio Preto, São Paulo, Brazil
| | - Eleonora Kurtenbach
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Russolina B Zingali
- Laboratório de Hemostase e Venenos, Instituto de Bioquímica Médica Leopoldo de Meis (IBqM), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Fabio C L Almeida
- Laboratório de RMN de Biomoléculas, Instituto de Bioquímica Médica Leopoldo de Meis (IBqM), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Centro Nacional de Ressonância Magnética Nuclear (CNRMN), Centro Nacional de Biologia Estrutural e Bioimagem (CENABIO), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
| |
Collapse
|
4
|
Gattringer J, Gruber CW, Hellinger R. Peptide modulators of cell migration: Overview, applications and future development. Drug Discov Today 2023; 28:103554. [PMID: 36921670 PMCID: PMC7615922 DOI: 10.1016/j.drudis.2023.103554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Cell migration is a key physiological process in the development and homeostasis of multicellular organisms; errors in this complex system can trigger the development of cancer or inflammatory disorders. Therefore, modulating cell migration provides opportunities for drug discovery. Peptides are gaining importance on the global therapeutics market, given their unique properties compared with established small-molecule drugs or biologics. In this review, we identified over 470 peptides modulating cell migration and analyzed their characteristics. Over 95% of these peptides are in the discovery or preclinical stage, because the transition of peptide hits into drug leads often results in a bottleneck in the development process. We summarize chemical strategies in (pre-)clinical development to enhance drug-like properties of bioactive peptides.
Collapse
Affiliation(s)
- Jasmin Gattringer
- Medical University of Vienna, Center for Physiology and Pharmacology, Schwarzspanierstrasse 17, A-1090 Vienna, Austria
| | - Christian W Gruber
- Medical University of Vienna, Center for Physiology and Pharmacology, Schwarzspanierstrasse 17, A-1090 Vienna, Austria
| | - Roland Hellinger
- Medical University of Vienna, Center for Physiology and Pharmacology, Schwarzspanierstrasse 17, A-1090 Vienna, Austria.
| |
Collapse
|
5
|
David V, Wermelinger LS, Frattani FS, Lima AGF, Santos YFS, Mourão PADS, Almeida FCL, Kurtenbach E, Zingali RB. rJararacin, a recombinant disintegrin from Bothrops jararaca venom: Exploring its effects on hemostasis and thrombosis. Arch Biochem Biophys 2023; 738:109557. [PMID: 36878339 DOI: 10.1016/j.abb.2023.109557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/24/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
Integrins are a family of heterodimeric transmembrane receptors which link the extracellular matrix to the cell cytoskeleton. These receptors play a role in many cellular processes: adhesion, proliferation, migration, apoptosis, and platelet aggregation, thus modulating a wide range of scenarios in health and disease. Therefore, integrins have been the target of new antithrombotic drugs. Disintegrins from snake venoms are recognized by the ability to modulate the activity of integrins, such as integrin αIIbβ3, a fundamental platelet glycoprotein, and αvβ3 expressed on tumor cells. For this reason, disintegrins are unique and potential tools for examining integrin-matrix interaction and the development of novel antithrombotic agents. The present study aims to obtain the recombinant form of jararacin and evaluate the secondary structure and its effects on hemostasis and thrombosis. rJararacin was expressed in the Pichia pastoris (P. pastoris) expression system and purified the recombinant protein with a yield of 40 mg/L of culture. The molecular mass (7722 Da) and internal sequence were confirmed by mass spectrometry. Structure and folding analysis were obtained by Circular Dichroism and 1H Nuclear Magnetic Resonance spectra. Disintegrin structure reveals properly folded with the presence of β-sheet structure. rJararacin significantly demonstrated inhibition of the adhesion of B16F10 cells and platelets to the fibronectin matrix under static conditions. rJararacin inhibited platelet aggregation induced by ADP (IC50 95 nM), collagen (IC50 57 nM), and thrombin (IC50 22 nM) in a dose-dependent manner. This disintegrin also inhibited 81% and 94% of the adhesion of platelets to fibrinogen and collagen under continuous flow, respectively. In addition, rjararacin efficaciously prevents platelet aggregation in vitro and ex vivo with rat platelets and thrombus occlusion at an effective dose (5 mg/kg). The data here provides evidence that rjararacin possesses the potential as an αIIbβ3 antagonist, capable of preventing arterial thrombosis.
Collapse
Affiliation(s)
- Victor David
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-902, Brazil.
| | - Luciana Serrão Wermelinger
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-170, Brazil.
| | - Flávia Serra Frattani
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-170, Brazil.
| | - Antonio Gilclêr Ferreira Lima
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-902, Brazil.
| | - Yasmyn Fernandes Silva Santos
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-902, Brazil.
| | - Paulo Antônio de Souza Mourão
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-902, Brazil.
| | - Fabio Ceneviva Lacerda Almeida
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-902, Brazil.
| | - Eleonora Kurtenbach
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-170, Brazil.
| | - Russolina Benedeta Zingali
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941-902, Brazil.
| |
Collapse
|
6
|
Bialves TS, Bastos Junior CLQ, Cordeiro MF, Boyle RT. Snake venom, a potential treatment for melanoma. A systematic review. Int J Biol Macromol 2023; 231:123367. [PMID: 36690229 DOI: 10.1016/j.ijbiomac.2023.123367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
Despite advances in treating patients with melanoma, there are still many treatment challenges to overcome. Studies with snake venom-derived proteins/peptides describe their binding potential, and inhibition of some proliferative mechanisms in melanoma. The combined use of these compounds with current therapies could be the strategic gap that will help us discover more effective treatments for melanoma. The present study aimed to carry out a systematic review identifying snake venom proteins and peptides described in the literature with antitumor, antimetastatic, or antiangiogenic effects on melanoma and determine the mechanisms of action that lead to these anti-tumor effects. Snake venoms contain proteins and peptides which are antiaggregant, antimetastatic, and antiangiogenic. The in vivo results are encouraging, considering the reduction of metastases and tumor size after treatment. In addition to these results, it was reported that these venom compounds could act in combination with chemotherapeutics (Acurhagin-C; Macrovipecetin), sensitizing and preparing tumor cells for treatment. There is a consensus that snake venom is a promising strategy for the improvement of antimelanoma therapies, but it has been little explored in the current context, combined with inhibitors, immunotherapy or tumor microenvironment, for example. We suggest Lebein as a candidate for combination therapy with BRAF inhibitors.
Collapse
Affiliation(s)
- Tatiane Senna Bialves
- Programa de Pós-Graduação em Ciências Fisiológicas (PPGCF), Universidade Federal do Rio Grande - FURG, Av. Itália, s/n - km 8 - Carreiros, Rio Grande, Rio Grande do Sul, Brazil.
| | - Claudio L Q Bastos Junior
- Programa de Pós-Graduação em Ciências Fisiológicas (PPGCF), Universidade Federal do Rio Grande - FURG, Av. Itália, s/n - km 8 - Carreiros, Rio Grande, Rio Grande do Sul, Brazil
| | - Marcos Freitas Cordeiro
- Programa de Pós-Graduação em Biociências e Saúde (PPGBS), Universidade do Oeste de Santa Catarina - UNOESC, Rua Roberto Trompovski 224, Joaçaba, Santa Catarina, CEP 89600-000, Brazil.
| | - Robert Tew Boyle
- Programa de Pós-Graduação em Ciências Fisiológicas (PPGCF), Universidade Federal do Rio Grande - FURG, Av. Itália, s/n - km 8 - Carreiros, Rio Grande, Rio Grande do Sul, Brazil; Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande, Rio Grande do Sul 96203-900, Brazil
| |
Collapse
|
7
|
Succar BB, Saldanha-Gama RFG, Valle AS, Wermelinger LS, Barja-Fidalgo C, Kurtenbach E, Zingali RB. The recombinant disintegrin, jarastatin, inhibits platelet adhesion and endothelial cell migration. Toxicon 2022; 217:87-95. [PMID: 35981667 DOI: 10.1016/j.toxicon.2022.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 07/16/2022] [Accepted: 08/10/2022] [Indexed: 11/19/2022]
Abstract
Integrins are transmembrane heterodimeric glycoproteins, present in most cell types that act as mechanoreceptors, connecting extracellular matrix proteins to the cytoskeleton of the cell, mediating several physiological and pathological processes. The disintegrins are peptides capable of modulating the activity of integrins, such as αIIbβ3, responsible for the platelet aggregation and αvβ3, related to angiogenesis. The aim of this study was to produce the recombinant disintegrin jarastatin (rJast), to evaluate its secondary structure and biological activity. rJast was expressed in the yeast Komagataella phaffii (earlier Pichia pastoris) purified using molecular exclusion chromatography and the internal sequence and molecular mass were confirmed by mass spectrometry. The yield was approximately 40 mg/L of culture. rJast inhibited platelet aggregation induced by 2-4 μM ADP, 10 nM thrombin, and 1 μg/mL collagen (IC50 of 244.8 nM, 166.3 nM and 223.5 nM, respectively). It also blocked the adhesion of platelets to collagen under continuous flow in approximately 60% when used 1 μM. We also evaluated the effect of rJast on HMEC-1 cells. rJast significantly inhibited the adhesion of these cells to vitronectin, as well as cell migration (IC50 1.77 μM) without changing the viability. Conclusions: rJast was successfully expressed with activity in human platelets aggregation identical to the native molecule. Also, rJast inhibits adhesion and migration of endothelial cells. Thus, being relevant for the development of anti-thrombotic and anti-angiogenic drugs.
Collapse
Affiliation(s)
- Barbara Barbosa Succar
- Laboratório de Hemostase e Venenos, Instituto de Bioquímica Médica Leopoldo de Meis, And Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem (Inbeb) - Universidade Federal do Rio de Janeiro -UFRJ, RJ, Brazil
| | - Roberta F G Saldanha-Gama
- Laboratório de Farmacologia Celular e Molecular, IBRAG, Universidade do Estado do Rio de Janeiro - UERJ, RJ, Brazil
| | - Aline Sol Valle
- Laboratório de Biologia Molecular e Bioquímica de Proteínas, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro - UFRJ, RJ, Brazil
| | - Luciana Serrão Wermelinger
- Departamento de Análises Clínicas e Toxicológicas - Faculdade de Farmácia, Universidade Federal do Rio de Janeiro - UFRJ, RJ, Brazil
| | - Christina Barja-Fidalgo
- Laboratório de Farmacologia Celular e Molecular, IBRAG, Universidade do Estado do Rio de Janeiro - UERJ, RJ, Brazil
| | - Eleonora Kurtenbach
- Laboratório de Biologia Molecular e Bioquímica de Proteínas, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro - UFRJ, RJ, Brazil
| | - Russolina Benedeta Zingali
- Laboratório de Hemostase e Venenos, Instituto de Bioquímica Médica Leopoldo de Meis, And Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem (Inbeb) - Universidade Federal do Rio de Janeiro -UFRJ, RJ, Brazil.
| |
Collapse
|
8
|
Identification of Core Genes and Pathways in Melanoma Metastasis via Bioinformatics Analysis. Int J Mol Sci 2022; 23:ijms23020794. [PMID: 35054979 PMCID: PMC8775799 DOI: 10.3390/ijms23020794] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/06/2022] [Accepted: 01/10/2022] [Indexed: 02/05/2023] Open
Abstract
Metastasis is the leading cause of melanoma-related mortality. Current therapies are rarely curative for metastatic melanoma, revealing the urgent need to identify more effective preventive and therapeutic targets. This study aimed to screen the core genes and molecular mechanisms related to melanoma metastasis. A gene expression profile, GSE8401, including 31 primary melanoma and 52 metastatic melanoma clinical samples, was downloaded from the Gene Expression Omnibus (GEO) database. The differentially expressed genes (DEGs) between melanoma metastases and primary melanoma were screened using GEO2R tool. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genome (KEGG) analyses of DEGs were performed using the Database for Annotation Visualization and Integrated Discovery (DAVID). The Search Tool for the Retrieval of Interacting Genes (STRING) and Cytoscape with Molecular Complex Detection (MCODE) plug-in tools were utilized to detect the protein–protein interaction (PPI) network among DEGs. The top 10 genes with the highest degrees of the PPI network were defined as hub genes. In the results, 425 DEGs, including 60 upregulated genes and 365 downregulated genes, were identified. The upregulated genes were enriched in ECM–receptor interactions and the regulation of actin cytoskeleton, while 365 downregulated genes were enriched in amoebiasis, melanogenesis, and ECM–receptor interactions. The defined hub genes included CDK1, COL17A1, EGFR, DSG1, KRT14, FLG, CDH1, DSP, IVL, and KRT5. In addition, the mRNA and protein levels of the hub genes during melanoma metastasis were verified in the TCGA database and paired post- and premetastatic melanoma cells, respectively. Finally, KRT5-specific siRNAs were utilized to reduce the KRT5 expression in melanoma A375 cells. An MTT assay and a colony formation assay showed that KRT5 knockdown significantly promoted the proliferation of A375 cells. A Transwell assay further suggested that KRT5 knockdown significantly increased the cell migration and cell invasion of A375 cells. This bioinformatics study provided a deeper understanding of the molecular mechanisms of melanoma metastasis. The in vitro experiments showed that KRT5 played the inhibitory effects on melanoma metastasis. Therefore, KRT5 may serve important roles in melanoma metastasis.
Collapse
|
9
|
Anti-Cancer Effects of Cyclic Peptide ALOS4 in a Human Melanoma Mouse Model. Int J Mol Sci 2021; 22:ijms22179579. [PMID: 34502483 PMCID: PMC8430629 DOI: 10.3390/ijms22179579] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 12/17/2022] Open
Abstract
We examined the effects of ALOS4, a cyclic peptide discovered previously by phage library selection against integrin αvβ3, on a human melanoma (A375) xenograft model to determine its abilities as a potential anti-cancer agent. We found that ALOS4 promoted healthy weight gain in A375-engrafted nude mice and reduced melanoma tumor mass and volume. Despite these positive changes, examination of the tumor tissue did not indicate any significant effects on proliferation, mitotic index, tissue vascularization, or reduction of αSMA or Ki-67 tumor markers. Modulation in overall expression of critical downstream αvβ3 integrin factors, such as FAK and Src, as well as reductions in gene expression of c-Fos and c-Jun transcription factors, indirectly confirmed our suspicions that ALOS4 is likely acting through an integrin-mediated pathway. Further, we found no overt formulation issues with ALOS4 regarding interaction with standard inert laboratory materials (polypropylene, borosilicate glass) or with pH and temperature stability under prolonged storage. Collectively, ALOS4 appears to be safe, chemically stable, and produces anti-cancer effects in a human xenograft model of melanoma. We believe these results suggest a role for ALOS4 in an integrin-mediated pathway in exerting its anti-cancer effects possibly through immune response modulation.
Collapse
|
10
|
Montealegre-Sánchez L, Gimenes SN, Lopes DS, Teixeira SC, Solano-Redondo L, de Melo Rodrigues V, Jiménez-Charris E. Antitumoral Potential of Lansbermin-I, a Novel Disintegrin from Porthidium lansbergii lansbergii Venom on Breast Cancer Cells. Curr Top Med Chem 2019; 19:2069-2078. [DOI: 10.2174/1568026619666190806151401] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 06/13/2019] [Accepted: 07/01/2019] [Indexed: 12/31/2022]
Abstract
Background:
Disintegrins from snake venoms bind with high specificity cell surface integrins,
which are important pharmacological targets associated with cancer development and progression.
Objective:
In this study, we isolated a disintegrin from the Porthidium lansbergii lansbergii venom and
evaluated its antitumoral effects on breast cancer cells.
Methods:
The isolation of the disintegrin was performed on RP-HPLC and the inhibition of platelet aggregation
was evaluated on human platelet-rich plasma. The inhibition of cell adhesion was also evaluated
in vitro on cultures of cell lines by the MTT method as well as the inhibition of breast cancer cell
migration by the wound healing assay. The binding of the disintegrin to integrin subunits was verified by
flow cytometry and confocal microscopy. Finally, inhibition of angiogenesis was assessed in vitro on
HUVEC cells and the concentration of VEGF was measured in the cellular supernatants.
Results:
The disintegrin, named Lansbermin-I, is a low molecular weight protein (< 10 kDa) that includes
an RGD on its sequence identified previously. Lansbermin-I showed potent inhibition of ADP and
collagen-induced platelet aggregation on human plasma and also displayed inhibitory effects on the adhesion
and migration of breast cancer MCF7 and MDA-MB 231cell lines, without affecting nontumorigenic
breast MCF-10A and lung BEAS cells. Additionally, Lansbermin-I prevented MCF7 cells to
adhere to fibronectin and collagen, and also inhibited in vitro angiogenesis on human endothelial HUVEC
cells.
Conclusion:
Our results display the first report on the antitumor and anti-metastatic effects of an RGDdisintegrin
isolated from a Porthidium snake venom by possibly interfering with α2 and/or β1-containing
integrins. Thus, Lansbermin-I could be an attractive model to elucidate the role of disintegrins against
breast cancer development.
Collapse
Affiliation(s)
| | - Sarah N.C. Gimenes
- Laboratorio de Bioquimica e Toxinas Animais, Instituto de Biotecnologia, Universidade Federal de Uberlandia, MG, Brazil
| | - Daiana S. Lopes
- Instituto Multidisciplinar em Saude, Campus Anisio Teixeira, Universidade Federal da Bahia, BA, Brazil
| | - Samuel C. Teixeira
- Laboratorio de Bioquimica e Toxinas Animais, Instituto de Biotecnologia, Universidade Federal de Uberlandia, MG, Brazil
| | - Luis Solano-Redondo
- Grupo Laboratorio de Herpetologia, Facultad de Ciencias, Universidad del Valle, Cali, Colombia
| | - Veridiana de Melo Rodrigues
- Laboratorio de Bioquimica e Toxinas Animais, Instituto de Biotecnologia, Universidade Federal de Uberlandia, MG, Brazil
| | | |
Collapse
|
11
|
Chen X, Deng M, Zhou X, Wang X, Ye Y, Zhu J, Jiang H, Chen X, Zha W. Euxanthone Impairs the Metastatic Potential of Osteosarcoma by Reducing COX-2 Expression. Anat Rec (Hoboken) 2018; 302:1399-1408. [PMID: 30334373 DOI: 10.1002/ar.23992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/05/2018] [Accepted: 06/24/2018] [Indexed: 01/14/2023]
Abstract
Osteosarcoma (OS) is one of the most common malignancies of bone. This study was aimed to explore the anti-metastatic effect of euxanthone on OS. Adhesion assay and Transwell assay were used to examine the effect of euxanthone on adhesion, migration and invasion of OS cells. COX-2-over-expressing plasmid was applied to transfect OS cells to assess whether COX-2 affects the anti-metastatic function of euxanthone. PDCD4 knockdown and miR-21 mimic were applied to assess whether euxanthone suppresses the transactivation of c-jun via modulating miR-21-PDCD4 signaling. The effect of euxanthone in vivo was also examined by lung metastasis assay. Euxanthone, a xanthone derivative extracted from Polygala caudata, has been found to exhibit anti-neoplastic activities. In present study, our results showed that euxanthone suppressed cell adhesion, migration, and invasion in OS cells. Our experimental data also showed that repression of COX-2 by euxanthone mediated its anti-metastatic activities. Moreover, our findings revealed that euxanthone modulated the COX-2 expression through the miR-21/PDCD4/c-jun signaling pathway. The anti-metastatic activities of euxanthone were also validated in a pulmonary metastasis model. Taken together, our results highlighted the potential of euxanthone to be used in the treatment of OS. Anat Rec, 302:1399-1408, 2019. © 2018 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Xiaodong Chen
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Min Deng
- Department of Gastroenterology, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Xinshe Zhou
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Xuyi Wang
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Yuchen Ye
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Jun Zhu
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Huafeng Jiang
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Xiaotian Chen
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Wenju Zha
- Department of Orthopedics, the First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| |
Collapse
|
12
|
Helal-Neto E, Brandão-Costa RM, Saldanha-Gama R, Ribeiro-Pereira C, Midlej V, Benchimol M, Morandi V, Barja-Fidalgo C. Priming Endothelial Cells With a Melanoma-Derived Extracellular Matrix Triggers the Activation of αvβ3/VEGFR2 Axis. J Cell Physiol 2016; 231:2464-73. [DOI: 10.1002/jcp.25358] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/22/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Edward Helal-Neto
- Laboratório de Farmacologia Celular e Molecular, IBRAG; Universidade do Estado do Rio de Janeiro; Rio de Janeiro Brazil
- Laboratório de Biologia da Célula Endotelial e da Angiogênese, IBRAG; Universidade do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - Renata M. Brandão-Costa
- Laboratório de Farmacologia Celular e Molecular, IBRAG; Universidade do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - Roberta Saldanha-Gama
- Laboratório de Farmacologia Celular e Molecular, IBRAG; Universidade do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - Cristiane Ribeiro-Pereira
- Laboratório de Farmacologia Celular e Molecular, IBRAG; Universidade do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - Victor Midlej
- Instituto de Biofísica Carlos Chagas Filho; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
| | - Marlene Benchimol
- Instituto de Biofísica Carlos Chagas Filho; Universidade Federal do Rio de Janeiro; Rio de Janeiro Brazil
- Unigranrio; Universidade do Grande Rio; Rio de Janeiro Brazil
| | - Verônica Morandi
- Laboratório de Biologia da Célula Endotelial e da Angiogênese, IBRAG; Universidade do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - Christina Barja-Fidalgo
- Laboratório de Farmacologia Celular e Molecular, IBRAG; Universidade do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| |
Collapse
|
13
|
Makino J, Cabral H, Miura Y, Matsumoto Y, Wang M, Kinoh H, Mochida Y, Nishiyama N, Kataoka K. cRGD-installed polymeric micelles loading platinum anticancer drugs enable cooperative treatment against lymph node metastasis. J Control Release 2015; 220:783-91. [PMID: 26474676 DOI: 10.1016/j.jconrel.2015.10.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 10/05/2015] [Accepted: 10/09/2015] [Indexed: 01/11/2023]
Abstract
Lymph node metastasis (LNM) is correlated with decreased survival, indicating high tumor malignancy and being a potential source for subsequent fatal metastases. Targeted therapies inhibiting the formation of LNM, while eliminating established metastatic foci, could provide synergistic effects by reducing the incidence and growth of metastasis. Based on the inhibitory activity of cRGD peptide against the development of metastasis, and the LNM targeting ability of systemically injected drug-loaded polymeric micelles, herein, we studied the capability of cRGD-installed polymeric micelles incorporating the platinum anticancer drug (1,2-diaminocylohexane)platinum(II) (DACHPt) for cooperatively inhibiting the formation and progression of LNM. As cRGD-installed DACHPt-loaded micelles (cRGD-DACHPt/m) presented similar size, drug loading and surface charge to non-conjugated micelles (MeO-DACHPt/m), the differences in the biological performance of the micelles were endorsed to the effect of the ligand. In a syngeneic melanoma model, both MeO-DACHPt/m and cRGD-DACHPt/m showed comparable antitumor activity against the primary tumors and the established metastatic foci in lymph nodes. However, cRGD-DACHPt/m significantly enhanced the efficacy against LNM draining from primary tumors through the effective inhibition of the spreading of cancer cells. This improved inhibition was associated with the ability of cRGD-DACHPt/m to reduce the migration of melanoma cells, which was higher than that of MeO-DACHPt/m, free cRGD and their combination. These results support our strategy of using cRGD-installed micelles for attaining cooperative therapies against LNM exploiting the inhibitory function of the peptide and the cytotoxic effect of the micelles.
Collapse
Affiliation(s)
- Jun Makino
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Yutaka Miura
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yu Matsumoto
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ming Wang
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroaki Kinoh
- The Innovation Center of Nanomedicine, 66-20 Horikawa-cho, Saiwai-ku, Kawasaki 212-0013, Japan
| | - Yuki Mochida
- The Innovation Center of Nanomedicine, 66-20 Horikawa-cho, Saiwai-ku, Kawasaki 212-0013, Japan
| | - Nobuhiro Nishiyama
- Polymer Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Kazunori Kataoka
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan; Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan; The Innovation Center of Nanomedicine, 66-20 Horikawa-cho, Saiwai-ku, Kawasaki 212-0013, Japan.
| |
Collapse
|
14
|
PICKARSKI MAUREEN, GLEASON ALEXA, BEDNAR BOHUMIL, DUONG LET. Orally active αvβ3 integrin inhibitor MK-0429 reduces melanoma metastasis. Oncol Rep 2015; 33:2737-45. [PMID: 25872534 PMCID: PMC4431436 DOI: 10.3892/or.2015.3910] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 03/20/2015] [Indexed: 11/16/2022] Open
Abstract
Melanoma remains one of the most aggressive types of cancer with a historically low survival rate. The αvβ3 integrin is involved in the progression of malignant melanoma. In the present study, the efficacy of MK-0429, a selective inhibitor of the αvβ3 integrin, was evaluated for its potential in the prevention of melanoma metastasis. Female B6D2F1 mice injected via the tail vein with murine B16F10 melanoma developed lung metastases within ~10 days. In the first experiment, the prevention of lung metastasis was assessed in the model treated with either vehicle, MK-0429 at 100 and 300 mg/kg orally twice daily or cyclophosphamide at 300 mg/kg, i.p. once daily. Study endpoints included determination of the study time period to achieve metastasis in lungs in this model, evaluation of the health effects on the study animals, the total number of lung colonies identified and lung tumor area. Unlike cyclophosphamide, the MK-0429 treatment did not lead to a significant weight reduction in mice. MK-0429 at 100 and 300 mg/kg reduced the number of metastatic tumor colonies by 64 and 57%, respectively, and the high dose also reduced the tumor area by 60% as compared to the vehicle. The second experiment employed B16F10 luciferase-expressing cells to examine the de novo progression of melanoma metastasis over 15 days with bioluminescent imaging of mice treated with MK-0429 at 300 mg/kg as compared to the vehicle. Tumor burden progressively advanced in the lungs of the B16F10-treated animals. However, MK-0429 reduced the progression of ventral and dorsal lung metastases by 22 and 38%, respectively, as compared to the vehicle, by study completion. Quantification of ex vivo tumor burden showed a 30-40% reduction in lung colonies by MK-0429. The two studies collectively demonstrated that MK-0429 was safe and efficacious in significantly decreasing melanoma metastasis in the lungs. The results emphasized the potential of MK-0429 as a novel, therapeutic agent for the prevention of metastatic melanoma.
Collapse
Affiliation(s)
| | - ALEXA GLEASON
- Imaging, Merck Research Laboratories, West Point, PA 19486, USA
| | - BOHUMIL BEDNAR
- Imaging, Merck Research Laboratories, West Point, PA 19486, USA
| | | |
Collapse
|
15
|
Arruda Macêdo JK, Fox JW, de Souza Castro M. Disintegrins from snake venoms and their applications in cancer research and therapy. Curr Protein Pept Sci 2015; 16:532-48. [PMID: 26031306 PMCID: PMC4997955 DOI: 10.2174/1389203716666150515125002] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 04/17/2015] [Accepted: 05/13/2015] [Indexed: 01/01/2023]
Abstract
Integrins regulate diverse functions in cancer pathology and in tumor cell development and contribute to important processes such as cell shape, survival, proliferation, transcription, angiogenesis, migration, and invasion. A number of snake venom proteins have the ability to interact with integrins. Among these are the disintegrins, a family of small, non-enzymatic, and cysteine-rich proteins found in the venom of numerous snake families. The venom proteins may have a potential role in terms of novel therapeutic leads for cancer treatment. Disintegrin can target specific integrins and as such it is conceivable that they could interfere in important processes involved in carcinogenesis, tumor growth, invasion and migration. Herein we present a survey of studies involving the use of snake venom disintegrins for cancer detection and treatment. The aim of this review is to highlight the relationship of integrins with cancer and to present examples as to how certain disintegrins can detect and affect biological processes related to cancer. This in turn will illustrate the great potential of these molecules for cancer research. Furthermore, we also outline several new approaches being created to address problems commonly associated with the clinical application of peptide-based drugs such as instability, immunogenicity, and availability.
Collapse
Affiliation(s)
| | - Jay W Fox
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, USA.
| | | |
Collapse
|
16
|
Badr G, Al-Sadoon MK, Rabah DM. Therapeutic efficacy and molecular mechanisms of snake (Walterinnesia aegyptia) venom-loaded silica nanoparticles in the treatment of breast cancer- and prostate cancer-bearing experimental mouse models. Free Radic Biol Med 2013; 65:175-189. [PMID: 23811005 DOI: 10.1016/j.freeradbiomed.2013.06.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 04/12/2013] [Accepted: 06/07/2013] [Indexed: 01/28/2023]
Abstract
The treatment of drug-resistant cancer is a clinical challenge, and thus screening for novel anticancer drugs is critically important. We recently demonstrated a strong enhancement of the antitumor activity of snake (Walterinnesia aegyptia) venom (WEV) in vitro in breast carcinoma, prostate cancer, and multiple myeloma cell lines but not in normal cells when the venom was combined with silica nanoparticles (WEV+NP). In the present study, we investigated the in vivo therapeutic efficacy of WEV+NP in breast cancer- and prostate cancer-bearing experimental mouse models. Xenograft breast and prostate tumor mice models were randomized into 4 groups for each cancer model (10 mice per group) and were treated with vehicle (control), NP, WEV, or WEV+NP daily for 28 days post tumor inoculation. The tumor volumes were monitored throughout the experiment. On Day 28 post tumor inoculation, breast and prostate tumor cells were collected and either directly cultured for flow cytometry analysis or lysed for Western blot and ELISA analysis. Treatment with WEV+NP or WEV alone significantly reduced both breast and prostate tumor volumes compared to treatment with NP or vehicle alone. Compared to treatment with WEV alone, treatment of breast and prostate cancer cells with WEV+NP induced marked elevations in the levels of reactive oxygen species (ROS), hydroperoxides, and nitric oxide; robust reductions in the levels of the chemokines CXCL9, CXCL10, CXCL12, CXCL13, and CXCL16 and decreased surface expression of their cognate chemokine receptors CXCR3, CXCR4, CXCR5, and CXCR6; and subsequent reductions in the chemokine-dependent migration of both breast and prostate cancer cells. Furthermore, we found that WEV+NP strongly inhibited insulin-like growth factor 1 (IGF-1)- and epidermal growth factor (EGF)-mediated proliferation of breast and prostate cancer cells, respectively, and enhanced the induction of apoptosis by increasing the activity of caspase-3,-8, and -9 in both breast and prostate cancer cells. In addition, treatment of breast and prostate cancer cells with WEV+NP or WEV alone revealed that the combination of WEV with NP robustly decreased the phosphorylation of AKT, ERK, and IκBα; decreased the expression of cyclin D1, surviving, and the antiapoptotic Bcl-2 family members Bcl-2, Bcl-XL, and Mcl-1; markedly increased the expression of cyclin B1 and the proapoptotic Bcl-2 family members Bak, Bax, and Bim; altered the mitochondrial membrane potential; and subsequently sensitized tumor cells to growth arrest. Our data reveal the therapeutic potential of the nanoparticle-sustained delivery of snake venom against different cancer cell types.
Collapse
Affiliation(s)
- Gamal Badr
- Princess Al-Johara Al-Ibrahim Center for Cancer Research, Prostate Cancer Research Chair, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Zoology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt.
| | - Mohamed K Al-Sadoon
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Danny M Rabah
- Princess Al-Johara Al-Ibrahim Center for Cancer Research, Prostate Cancer Research Chair, College of Medicine, King Saud University, Riyadh, Saudi Arabia; Department of Urology/Surgery, College of Medicine, King Saud University, Saudi Arabia
| |
Collapse
|
17
|
Applications of snake venom components to modulate integrin activities in cell-matrix interactions. Int J Biochem Cell Biol 2013; 45:1974-86. [PMID: 23811033 DOI: 10.1016/j.biocel.2013.06.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/29/2013] [Accepted: 06/12/2013] [Indexed: 01/23/2023]
Abstract
Snake venom proteins are broadly investigated in the different areas of life science. Direct interaction of these compounds with cells may involve a variety of mechanisms that result in diverse cellular responses leading to the activation or blocking of physiological functions of the cell. In this review, the snake venom components interacting with integrins will be characterized in context of their effect on cellular response. Currently, two major families of snake venom proteins are considered as integrin-binding molecules. The most attention has been devoted to the disintegrin family, which binds certain types of integrins through specific motifs recognized as a tri-peptide structurally localized on an integrin-binding loop. Other snake venom integrin-binding proteins belong to the C-type lectin family. Snake venom molecules bind to the cellular integrins resulting in a modulation of cell signaling and in consequence, the regulation of cell proliferation, migration and apoptosis. Therefore, snake venom research on the integrin-binding molecules may have significance in biomedicine and basic cell biology.
Collapse
|
18
|
Suntravat M, Jia Y, Lucena SE, Sánchez EE, Pérez JC. cDNA cloning of a snake venom metalloproteinase from the eastern diamondback rattlesnake (Crotalus adamanteus), and the expression of its disintegrin domain with anti-platelet effects. Toxicon 2013; 64:43-54. [PMID: 23313448 DOI: 10.1016/j.toxicon.2012.12.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 12/22/2012] [Accepted: 12/30/2012] [Indexed: 12/21/2022]
Abstract
A 5' truncated snake venom metalloproteinase was identified from a cDNA library constructed from venom glands of an eastern diamondback rattlesnake (Crotalus adamanteus). The 5'-rapid amplification of cDNA ends (RACE) was used to obtain the 1865 bp full-length cDNA sequence of a snake venom metalloproteinase (CamVMPII). CamVMPII encodes an open reading frame of 488 amino acids, which includes a signal peptide, a pro-domain, a metalloproteinase domain, a spacer, and an RGD-disintegrin domain. The predicted amino acid sequence of CamVMPII showed a 91%, 90%, 83%, and 82% sequence homology to the P-II class enzymes of C. adamanteus metalloproteinase 2, Crotalus atrox CaVMP-II, Gloydius halys agkistin, and Protobothrops jerdonii jerdonitin, respectively. Disintegrins are potent inhibitors of both platelet aggregation and integrin-dependent cell adhesion. Therefore, the disintegrin domain (Cam-dis) of CamVMPII was amplified by PCR, cloned into a pET-43.1a vector, and expressed in Escherichia coli BL21. Affinity purified recombinantly modified Cam-dis (r-Cam-dis) with a yield of 8.5 mg/L culture medium was cleaved from the fusion tags by enterokinase cleavage. r-Cam-dis was further purified by two-step chromatography consisting of HiTrap™ Benzamidine FF column, followed by Talon Metal affinity column with a final yield of 1 mg/L culture. r-Cam-dis was able to inhibit all three processes of platelet thrombus formation including platelet adhesion with an estimated IC(50) of 1 nM, collagen- and ADP-induced platelet aggregation with the estimated IC(50)s of 18 and 6 nM, respectively, and platelet function on clot retraction. It is a potent anti-platelet inhibitor, which should be further investigated for drug discovery to treat stroke patients or patients with thrombotic disorders.
Collapse
Affiliation(s)
- Montamas Suntravat
- National Natural Toxins Research Center, Texas A&M University-Kingsville, Kingsville, TX 78363, USA.
| | | | | | | | | |
Collapse
|
19
|
Badr G, Al-Sadoon MK, Rabah DM, Sayed D. Snake (Walterinnesia aegyptia) venom-loaded silica nanoparticles induce apoptosis and growth arrest in human prostate cancer cells. Apoptosis 2012; 18:300-14. [DOI: 10.1007/s10495-012-0787-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
20
|
Badr G, Al-Sadoon MK, Abdel-Maksoud MA, Rabah DM, El-Toni AM. Cellular and molecular mechanisms underlie the anti-tumor activities exerted by Walterinnesia aegyptia venom combined with silica nanoparticles against multiple myeloma cancer cell types. PLoS One 2012; 7:e51661. [PMID: 23251606 PMCID: PMC3518476 DOI: 10.1371/journal.pone.0051661] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Accepted: 11/06/2012] [Indexed: 12/19/2022] Open
Abstract
Multiple myeloma (MM) is a clonal disease of plasma cells that remains incurable despite the advent of several novel therapeutics. In this study, we aimed to delineate the impact of snake venom extracted from Walterinnesia aegyptia (WEV) alone or in combination with silica nanoparticles (WEV+NP) on primary MM cells isolated from patients diagnosed with MM as well as on two MM cell lines, U266 and RPMI 8226. The IC50 values of WEV and WEV+NP that significantly decreased MM cell viability without affecting the viability of normal peripheral mononuclear cells (PBMCs) were determined to be 25 ng/ml and 10 ng/ml, respectively. Although both WEV (25 ng/ml) and WEV+NP (10 ng/ml) decreased the CD54 surface expression without affecting the expression of CXCR4 (CXCL12 receptor) on MM cells, they significantly reduced the ability of CXC chemokine ligand 12 (CXCL12) to induce actin cytoskeleton rearrangement and the subsequent reduction in chemotaxis. It has been established that the binding of CXCL12 to its receptor CXCR4 activates multiple intracellular signal transduction pathways that regulate MM cell chemotaxis, adhesion, and proliferation. We found that WEV and WEV+NP clearly decreased the CXCL12/CXCR4-mediated activation of AKT, ERK, NFκB and Rho-A using western blot analysis; abrogated the CXCL12-mediated proliferation of MM cells using the CFSE assay; and induced apoptosis in MM cell as determined by PI/annexin V double staining followed by flow cytometry analysis. Monitoring the expression of B-cell CCL/Lymphoma 2 (Bcl-2) family members and their role in apoptosis induction after treatment with WEV or WEV+NP revealed that the combination of WEV with NP robustly decreased the expression of the anti-apoptotic effectors Bcl-2, BclXL and Mcl-1; conversely increased the expression of the pro-apoptotic effectors Bak, Bax and Bim; and altered the mitochondrial membrane potential in MM cells. Taken together, our data reveal the biological effects of WEV and WEV+NP and the underlying mechanisms against myeloma cancer cells.
Collapse
Affiliation(s)
- Gamal Badr
- Princess Johara Alibrahim Center for Cancer Research, Prostate Cancer Research Chair, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | | | | | | | | |
Collapse
|
21
|
Effect of the disintegrin eristostatin on melanoma-natural killer cell interactions. Toxicon 2012; 61:83-93. [PMID: 23147645 DOI: 10.1016/j.toxicon.2012.10.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 10/17/2012] [Accepted: 10/23/2012] [Indexed: 01/04/2023]
Abstract
Malignant melanoma is difficult to treat due to its resistance to chemotherapeutic regimens. Discovery of new pharmaceuticals with inhibitory potential can be helpful in the development of novel treatments. The snake venom disintegrin eristostatin, from the viper Eristicophis macmahoni, caused immunodeficient mice to be significantly protected from development of lung colonization when melanoma cells and the disintegrin were co-injected in vivo into the lateral tail vein compared to vehicle controls. Cytotoxicity assays suggested that eristostatin makes the melanoma cells a better target for lysis by human natural killer cells. Direct binding assays using atomic force microscopy showed eristostatin does specifically bind the surface of the six melanoma cell lines tested. Eristostatin binding was partially inhibited by the addition of soluble RGDS peptide, suggesting an integrin as one likely, but not the sole, binding partner. Studies done with melanoma cells on a culture dish and natural killer cells attached to a cantilever tip in atomic force microscopy showed four major populations of interactions which exhibited altered frequency and unbinding strength in the presence of eristostatin.
Collapse
|
22
|
Abstract
In the highly metastatic B16F10 melanoma cell line, activation of the signalling molecules that promote cell proliferation and survival on conventional adhesive culture dishes may also be responsible for the growth and resistance to anoikis of aggregates on a non-adhesive substratum. We have examined the influence of bacterial ADP-ribosyltransferases C3-like exoenzymes, which selectively modify RhoA, B and C proteins and inhibit signal pathways controlled by them. RNA interference [siRNA (small interfering RNA) Akt (also known as protein kinase B)] and a PI3K (phosphoinositide 3-kinase) inhibitor were used to analyse the changes caused by inhibiting the PI3K/Akt pathway. Inhibiting the activation of RhoA, B, C and Akt expression resulted in a decrease of the number of cells cultured in aggregates, and caspase 3 activation. RhoA activation and RhoB and RhoC expression were controlled by Akt, but not RhoA expression. Inhibiting Akt and RhoA reduced the expression of α5 integrin, and inactivated FAK (focal adhesion kinase) in B16F10 cells cultured as aggregates. Thus, inhibiting Rho subfamily proteins and Akt expression inactivates the FAK pathway and induces anoikis in anoikis-resistant cells. The activation of RhoA in melanoma cells can depend on PI3K/Akt activation, suggesting that PI3K/Akt is a suitable target for new therapeutic approaches.
Collapse
|
23
|
Al-Sadoon MK, Abdel-Maksoud MA, Rabah DM, Badr G. Induction of apoptosis and growth arrest in human breast carcinoma cells by a snake (Walterinnesia aegyptia) venom combined with silica nanoparticles: crosstalk between Bcl2 and caspase 3. Cell Physiol Biochem 2012; 30:653-65. [PMID: 22854437 DOI: 10.1159/000341446] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2012] [Indexed: 12/11/2022] Open
Abstract
We recently demonstrated that the snake venom extracted from Walterinnesia aegyptia (WEV) either alone or combined with silica nanoparticles (WEV+NP) enhanced the proliferation of mice immune cells and simultaneously decreased the proliferation of human breast carcinoma cell line (MDA-MB-231). However, the molecular mechanism of how this venom induced growth arrest of breast cancer cells has not been studied. In this context, we extended our study to evaluate the anti-tumor potential of WEV and WEV+NP on the human breast carcinoma cell lines MDA-MB-231 and MCF-7, as well as their effects on non-tumorigenic normal breast epithelial cells (MCF-10). The IC(50 )values of WEV alone and WEV+NP in these cell lines were determined to be 50 ng/ml and 20 ng/ml, respectively. Interestingly, at these concentrations, the venom did not affect the viability of normal MCF-10 cells and treatment of all these cell lines with NP alone did not affect their viability. Using annexin-V binding assay followed by flow cytometry analysis, we found that combination of WEV with NP strongly induced apoptosis in MDA-MB-231 and MCF-7 cancer cells without significant effect on normal MCF-10 cells. Furthermore, we found that WEV+NP decreased the expression of Bcl2 and enhanced the activation of caspase 3 in MDA-MB-231 and MCF-7 cells. Most importantly, WEV+NP-treated breast cancer cells, but not normal MCF-10 cells, exhibited a significant (P<0.05) reduction in actin polymerization and cytoskeletal rearrangement in response to CXCL12. Our data reveal biological effects of WEV or WEV+NP and the underlying mechanisms to fight breast cancer cells.
Collapse
Affiliation(s)
- Mohamed K Al-Sadoon
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | | | | |
Collapse
|
24
|
Peng JM, Chen YH, Hung SW, Chiu CF, Ho MY, Lee YJ, Lai TC, Hsiao M, Liang CM, Liang SM. Recombinant viral protein promotes apoptosis and suppresses invasion of ovarian adenocarcinoma cells by targeting α5β1 integrin to down-regulate Akt and MMP-2. Br J Pharmacol 2012; 165:479-93. [PMID: 21740408 DOI: 10.1111/j.1476-5381.2011.01581.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND AND PURPOSE As prognosis for patients with metastatic ovarian cancer is generally poor, advances in treatment are needed. Here, we studied the mechanism of action of a recombinant viral capsid protein (rVP1) and explored its effect against ovarian tumour growth and metastasis in vivo. EXPERIMENTAL APPROACH The human ovarian cancer cell line SKOV3 and BALB/cAnN-Foxn1 female nude mice were used. Effects of rVP1 on the viability, invasive ability, matrix metalloproteinase (MMP)-2 activity and cancer cell proliferation and metastasis were determined by cell proliferation assay, Matrigel invasion assay, gelatin zymographic analysis, as well as bioluminescence imaging and immunohistological analysis in xenograft mouse models respectively. Levels of total and phosphorylated focal adhesion kinase (FAK), PKB/Akt, phosphatase and tensin homologue (PTEN) and glycogen synthase kinase-3β (GSK-3β) were detected by Western blotting. KEY RESULTS rVP1 promoted apoptosis and decreased invasion of human ovarian cancer cells. This effect of rVP1 was accompanied by activation of PTEN and GSK-3β as well as down-regulation of FAK, Akt and MMP-2. Anti-integrin antibodies or overexpression of constitutively active Akt reversed the cellular effects of rVP1. Orthotopic and intraperitoneal xenograft mouse models demonstrated that rVP1 attenuated survival and metastasis of human ovarian cancer SKOV3 cell line in vivo through selective regulation of Akt and GSK-3β activity as shown by bioluminescence imaging of mice and immunohistochemical analysis. CONCLUSION AND IMPLICATIONS These results indicate that negative regulation of Akt signalling and MMP-2 by rVP1 may have the potential to suppress ovarian tumour growth and metastasis in vivo.
Collapse
Affiliation(s)
- Jei-Ming Peng
- Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei, Taiwan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Lucena SE, Jia Y, Soto JG, Parral J, Cantu E, Brannon J, Lardner K, Ramos CJ, Seoane AI, Sánchez EE. Anti-invasive and anti-adhesive activities of a recombinant disintegrin, r-viridistatin 2, derived from the Prairie rattlesnake (Crotalus viridis viridis). Toxicon 2012; 60:31-9. [PMID: 22465495 DOI: 10.1016/j.toxicon.2012.03.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Revised: 02/28/2012] [Accepted: 03/13/2012] [Indexed: 01/01/2023]
Abstract
Snake venom disintegrins inhibit platelet aggregation and have anti-cancer activities. In this study, we report the cloning, expression, and functional activities of a recombinant disintegrin, r-viridistatin 2 (GenBank ID: JQ071899), from the Prairie rattlesnake. r-Viridistatin 2 was tested for anti-invasive and anti-adhesive activities against six different cancer cell lines (human urinary bladder carcinoma (T24), human fibrosarcoma (HT-1080), human skin melanoma (SK-Mel-28), human colorectal adenocarcinoma (CaCo-2), human breast adenocarcinoma (MDA-MB-231) and murine skin melanoma (B16F10)). r-Viridistatin 2 shares 96% and 64% amino acid identity with two other Prairie rattlesnake medium-sized disintegrins, viridin and viridistatin, respectively. r-Viridistatin 2 was able to inhibit adhesion of T24, SK-MEL-28, HT-1080, CaCo-2 and MDA-MB-231 to various extracellular matrix proteins with different affinities. r-Viridistatin 2 decreased the ability of T24 and SK-MEL-28 cells to migrate by 62 and 96% respectively, after 24 h of incubation and the invasion of T24, SK-MEL-28, HT-1080 and MDA-MB-231 cells were inhibited by 80, 85, 65 and 64% respectively, through a reconstituted basement membrane using a modified Boyden chamber. Finally, r-viridistatin 2 effectively inhibited lung colonization of murine melanoma cells in BALB/c mice by 71%, suggesting that r-viridistatin 2 could be a potent anti-cancer agent in vivo.
Collapse
Affiliation(s)
- Sara E Lucena
- National Natural Toxins Research Center-NNTRC, Texas A&M University-Kingsville, MSC 158, 975 West Avenue B, Kingsville, TX 78363, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Badr G, Al-Sadoon MK, El-Toni AM, Daghestani M. Walterinnesia aegyptia venom combined with silica nanoparticles enhances the functioning of normal lymphocytes through PI3K/AKT, NFκB and ERK signaling. Lipids Health Dis 2012; 11:27. [PMID: 22336518 PMCID: PMC3310743 DOI: 10.1186/1476-511x-11-27] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Accepted: 02/15/2012] [Indexed: 01/04/2023] Open
Abstract
Background The toxicity of snake venom varies over time in some species. The venom of newborn and small juvenile snakes appears to be more potent than adults of the same species, and a bite from a snake that has not fed recently, such as one that has just emerged from hibernation, is more dangerous than one that has recently fed due to the larger volume of venom injected. Therefore, the potency of a snake's venom is typically determined using the LD50 or IC50 tests. In the present study, we evaluated the anti-tumor potential of snake venom from Walterinnesia aegyptia (WEV) on the human breast carcinoma cell line MDA-MB-231, as well as its effect on the normal mice peripheral blood mononuclear cells (PBMCs). Results This venom was used alone (WEV) or in combination with silica nanoparticles (WEV+NP). The IC50 values of WEV alone and WEV+NP in the MDA-MB-231 cells were determined to be 50 ng/ml and 20 ng/ml, respectively. Interestingly, at these concentrations, the venom did not affect the viability of normal human PBMCs. To investigate the in vivo effects of this venom further, three groups of mice were used (15 mice in each group): Group I was the control, Group II was subcutaneously injected with WEV, and Group III was injected with WEV+NP. Using flow cytometry and western blot analysis, we found that the blood lymphocytes of WEV-injected mice exhibited a significant increase in actin polymerization and cytoskeletal rearrangement in response to CXCL12 through the activation of AKT, NF-κB and ERK. These lymphocytes also showed a significant increase in their proliferative capacity in response to mitogen stimulation compared with those isolated from the control mice (P < 0.05). More importantly, in the WEV+NP-treated mice, the biological functions of normal lymphocytes were significantly (P < 0.05) enhanced in comparison with those of WEV-treated mice. Conclusion Our data reveal the unique biological effects of WEV, and we demonstrated that its combination with nanoparticles strongly enhanced these biological effects.
Collapse
Affiliation(s)
- Gamal Badr
- Deanship of Scientific Research, King Saud University, P,O, Box 2454, Riyadh 11451, Saudi Arabia.
| | | | | | | |
Collapse
|
27
|
Programmable multivalent display of receptor ligands using peptide nucleic acid nanoscaffolds. Nat Commun 2012; 3:614. [PMID: 22233624 PMCID: PMC3518395 DOI: 10.1038/ncomms1629] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Accepted: 12/01/2011] [Indexed: 01/05/2023] Open
Abstract
Multivalent effects dictate the binding affinity of multiple ligands on one molecular entity to receptors. Integrins are receptors that mediate cell attachment through multivalent binding to peptide sequences within the extracellular matrix, and overexpression promotes the metastasis of some cancers. Multivalent display of integrin antagonists enhances their efficacy, but current scaffolds have limited ranges and precision for the display of ligands. Here we present an approach to studying multivalent effects across wide ranges of ligand number, density, and three-dimensional arrangement. Using L-lysine γ-substituted peptide nucleic acids, the multivalent effects of an integrin antagonist were examined over a range of 1-45 ligands. The optimal construct improves the inhibitory activity of the antagonist by two orders of magnitude against the binding of melanoma cells to the extracellular matrix in both in vitro and in vivo models.
Collapse
|
28
|
Bouwmeester K, Meijer HJG, Govers F. At the Frontier; RXLR Effectors Crossing the Phytophthora-Host Interface. FRONTIERS IN PLANT SCIENCE 2011; 2:75. [PMID: 22645549 PMCID: PMC3355728 DOI: 10.3389/fpls.2011.00075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Accepted: 10/17/2011] [Indexed: 05/20/2023]
Abstract
Plants are constantly beset by pathogenic organisms. To successfully infect their hosts, plant pathogens secrete effector proteins, many of which are translocated to the inside of the host cell where they manipulate normal physiological processes and undermine host defense. The way by which effectors cross the frontier to reach the inside of the host cell varies among different classes of pathogens. For oomycete plant pathogens - like the potato late blight pathogen Phytophthora infestans - it has been shown that effector translocation to the host cell cytoplasm is dependent on conserved amino acid motifs that are present in the N-terminal part of effector proteins. One of these motifs, known as the RXLR motif, has a strong resemblance with a host translocation motif found in effectors secreted by Plasmodium species. These malaria parasites, that reside inside specialized vacuoles in red blood cells, make use of a specific protein translocation complex to export effectors from the vacuole into the red blood cell. Whether or not also oomycete RXLR effectors require a translocation complex to cross the frontier is still under investigation. For one P. infestans RXLR effector named IPI-O we have found a potential host target that could play a role in establishing the first contact between this effector and the host cell. This membrane spanning lectin receptor kinase, LecRK-I.9, interacts with IPI-O via the tripeptide RGD that overlaps with the RXLR motif. In animals, RGD is a well-known cell adhesion motif; it binds to integrins, which are membrane receptors that regulate many cellular processes and which can be hijacked by pathogens for either effector translocation or pathogen entry into host cells.
Collapse
Affiliation(s)
- Klaas Bouwmeester
- Laboratory of Phytopathology, Wageningen UniversityWageningen, Netherlands
- Centre for BioSystems GenomicsWageningen, Netherlands
| | | | - Francine Govers
- Laboratory of Phytopathology, Wageningen UniversityWageningen, Netherlands
- Centre for BioSystems GenomicsWageningen, Netherlands
- *Correspondence: Francine Govers, Laboratory of Phytopathology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands. e-mail:
| |
Collapse
|
29
|
Selistre-de-Araujo HS, Pontes CLS, Montenegro CF, Martin ACBM. Snake venom disintegrins and cell migration. Toxins (Basel) 2010; 2:2606-21. [PMID: 22069567 PMCID: PMC3153172 DOI: 10.3390/toxins2112606] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Revised: 10/15/2010] [Accepted: 10/18/2010] [Indexed: 12/26/2022] Open
Abstract
Cell migration is a key process for the defense of pluricellular organisms against pathogens, and it involves a set of surface receptors acting in an ordered fashion to contribute directionality to the movement. Among these receptors are the integrins, which connect the cell cytoskeleton to the extracellular matrix components, thus playing a central role in cell migration. Integrin clustering at focal adhesions drives actin polymerization along the cell leading edge, resulting in polarity of cell movement. Therefore, small integrin-binding proteins such as the snake venom disintegrins that inhibit integrin-mediated cell adhesion are expected to inhibit cell migration. Here we review the current knowledge on disintegrin and disintegrin-like protein effects on cell migration and their potential use as pharmacological tools in anti-inflammatory therapy as well as in inhibition of metastatic invasion.
Collapse
|
30
|
Seoane AI, Tran VL, Sanchez EE, White SA, Choi JL, Gaytán B, Chavez N, Reyes SR, Ramos CJ, Tran LH, Lucena SE, Sugarek M, Perez JC, Mandal SA, Ghorab S, Rodriguez-Acosta A, Fung BK, Soto JG. The mojastin mutant Moj-DM induces apoptosis of the human melanoma SK-Mel-28, but not the mutant Moj-NN nor the non-mutated recombinant Moj-WN. Toxicon 2010; 56:391-401. [PMID: 20398687 PMCID: PMC2930814 DOI: 10.1016/j.toxicon.2010.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2009] [Revised: 04/01/2010] [Accepted: 04/07/2010] [Indexed: 11/19/2022]
Abstract
In this study, three recombinant mojastin peptides (Moj-WN, Moj-NN, and Moj-DM) were produced and compared functionally. Recombinant Moj peptides were purified as GST-fusions. GST-Moj-WN and GST-Moj-NN inhibited ADP-induced platelet aggregation in platelet rich plasma. The GST-Moj-WN had an IC(50) of 160nM, while the GST-Moj-NN had an IC(50) of 493nM. The GST-Moj-DM did not inhibit platelet aggregation. All three GST-Moj peptides inhibited SK-Mel-28 cell adhesion to fibronectin. The GST-Moj-WN inhibited the binding of SK-Mel-28 cells to fibronectin with an IC(50) of 11nM, followed by the GST-Moj-NN (IC(50) of 28nM), and the GST-Moj-DM (IC(50) of 46nM). The GST-Moj peptides' ability to induce apoptosis on SK-Mel-28 cells was determined using Annexin-V-FITC and nuclear fragmentation assays. Cells were incubated with 5muM GST-Moj peptides for 24h. At 5microM GST-Moj-DM peptide, 13.56%+/-2.08 of treated SK-Mel-28 cells were in early apoptosis. The GST-Moj-DM peptide also caused nuclear fragmentation as determined by fluorescent microscopy and Hoechst staining. The GST-Moj-WN and GST-Moj-NN peptides failed to induce apoptosis. We characterized the SK-Mel-28 integrin expression, as the first step in determining r-Moj binding specificity. Our results indicate that SK-Mel-28 cells express alphavbeta3, alphav, alpha6, beta1, and beta3 integrin receptors.
Collapse
Affiliation(s)
- Agustin I. Seoane
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Victoria L. Tran
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Elda E. Sanchez
- Natural Toxins Research Center, Texas A&M University, Kingsville, TX 78363
| | - Stephanie A. White
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Jason L. Choi
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Brandon Gaytán
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Natalie Chavez
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Steven R. Reyes
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
- Natural Toxins Research Center, Texas A&M University, Kingsville, TX 78363
| | - Carla J. Ramos
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Luan H. Tran
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Sara E. Lucena
- Natural Toxins Research Center, Texas A&M University, Kingsville, TX 78363
| | - Maria Sugarek
- Natural Toxins Research Center, Texas A&M University, Kingsville, TX 78363
| | - John C. Perez
- Natural Toxins Research Center, Texas A&M University, Kingsville, TX 78363
| | - Stephanie A. Mandal
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Shervin Ghorab
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Alexis Rodriguez-Acosta
- Instituto de Medicina Tropical, Universidad Central de Venezuela, Apartado 47423, Caracas 1041, Venezuela
| | - Branden K. Fung
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| | - Julio G. Soto
- Biological Sciences Department, San José State University, One Washington Square, San José, CA 95192-0100
| |
Collapse
|
31
|
Wu X, Tan Y, Mao H, Zhang M. Toxic effects of iron oxide nanoparticles on human umbilical vein endothelial cells. Int J Nanomedicine 2010; 5:385-99. [PMID: 20957160 PMCID: PMC2950396 DOI: 10.2147/ijn.s10458] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Indexed: 12/12/2022] Open
Abstract
Iron oxide nanoparticles (IONPs) have been employed for hyperthermia treatments, stem cell therapies, cell labeling, and imaging modalities. The biocompatibility and cytotoxic effects of iron oxide nanoparticles when used in biomedical applications, however, are an ongoing concern. Endothelial cells have a critical role in this research dealing with tumors, cardiovascular disease and inflammation. However, there is little information dealing with the biologic effects of IONPs on the endothelial cell. This paper deals with the influence of dextran and citric acid coated IONPs on the behavior and function of human umbilical vein endothelial cells (HUVECs). After exposing endothelial cells to IONPs, dose-dependent effects on HUVECs viability, cytoskeleton and function were determined. Both citric acid and dextran coated particles appeared to be largely internalized by HUVECs through endocytosis and contribute to eventual cell death possibly by apoptosis. Cytoskeletal structures were greatly disrupted, as evidenced by diminished vinculin spots, and disorganized actin fiber and tubulin networks. The capacity of HUVECs to form a vascular network on Matrigel™ diminished after exposure to IONPs. Cell migration/invasion were inhibited significantly even at very low iron concentrations (0.1 mM). The results of this study indicate the great importance of thoroughly understanding nanoparticle-cell interactions, and the potential to exploit this understanding in tumor therapy applications involving IONPs as thermo/chemoembolization agents.
Collapse
Affiliation(s)
- Xinying Wu
- Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | | | | | | |
Collapse
|
32
|
Aguzzi MS, Fortugno P, Giampietri C, Ragone G, Capogrossi MC, Facchiano A. Intracellular targets of RGDS peptide in melanoma cells. Mol Cancer 2010; 9:84. [PMID: 20412563 PMCID: PMC2867821 DOI: 10.1186/1476-4598-9-84] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Accepted: 04/22/2010] [Indexed: 11/11/2022] Open
Abstract
Background RGD-motif acts as a specific integrins-ligand and regulates a variety of cell-functions via extracellular action affecting cell-adhesion properties. However, increasing evidence identifies additional RGDS-functions at intracellular level. Previous reports show RGDS-internalization in endothelial cells, cardiomyocytes and lymphocytes, indicating intracellular targets such as caspase-8 and caspase-9, and suggest RGDS specific activity at cytoplasmic level. Given the role RGDS-peptides play in controlling proliferation and apoptosis in several cell types, investigating intracellular targets of RGDS in melanoma cells may un-reveal novel molecular targets and key pathways, potentially useful for a more effective approach to melanoma treatment. Results In the present study we show for the first time that RGDS-peptide is internalized in melanoma cells in a time-dependent way and exerts strong anti-proliferative and pro-apoptotic effects independently from its extracellular anti-adhesive action. RGES control-peptide did not show biological effects, as expected; nevertheless it is internalized, although with slower kinetics. Survivin, a known cell-cycle and survival-regulator is highly expressed in melanoma cells. Co-immunoprecipitation assays in cell lysates and overlay assays with the purified proteins showed that RGDS interacts with survivin, as well as with procaspase-3, -8 and -9. RGDS-peptide binding to survivin was found to be specific, at high affinity (Kd 27.5 μM) and located at the survivin C-terminus. RGDS-survivin interaction appeared to play a key role, since RGDS lost its anti-mitogenic effect in survivin-deprived cells with a specific siRNA. Conclusions RGDS inhibits melanoma growth with an adhesion-independent mechanism; it is internalized in melanoma cells and specifically interacts with survivin. The present data may indicate a novel role of RGDS-containing peptides physiologically released from the extracellular matrix and may suggest a possible novel anti-proliferation strategy in melanoma.
Collapse
Affiliation(s)
- Maria Simona Aguzzi
- Laboratorio Patologia Vascolare, Istituto Dermopatico dell'Immacolata, IDI-IRCCS, Roma, Italy
| | | | | | | | | | | |
Collapse
|
33
|
Wang H, Ma L, Yang S, Shao Z, Meng C, Duan D, Li Y. Effect of RGD-modified silk material on the adhesion and proliferation of bone marrow-derived mesenchymal stem cells. ACTA ACUST UNITED AC 2009; 29:80-3. [DOI: 10.1007/s11596-009-0117-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2008] [Indexed: 01/26/2023]
|
34
|
Kim DS, Jeon OH, Lee HD, Yoo KH, Kim DS. Integrin αvβ3-mediated transcriptional regulation of TIMP-1 in a human ovarian cancer cell line. Biochem Biophys Res Commun 2008; 377:479-483. [DOI: 10.1016/j.bbrc.2008.10.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2008] [Accepted: 10/02/2008] [Indexed: 10/21/2022]
|