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Barbosa F, Araújo J, Gonçalves VMF, Palmeira A, Cunha A, Silva PMA, Fernandes C, Pinto M, Bousbaa H, Queirós O, Tiritan ME. Evaluation of Antitumor Activity of Xanthones Conjugated with Amino Acids. Int J Mol Sci 2024; 25:2121. [PMID: 38396802 PMCID: PMC10889492 DOI: 10.3390/ijms25042121] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Cancer is a complex disease characterized by several alterations, which confer, to the cells, the capacity to proliferate uncontrollably and to resist cellular death. Multiresistance to conventional chemotherapy drugs is often the cause of treatment failure; thus, the search for natural products or their derivatives with therapeutic action is essential. Chiral derivatives of xanthones (CDXs) have shown potential inhibitory activity against the growth of some human tumor cell lines. This work reports the screening of a library of CDXs, through viability assays, in different cancer cell lines: A375-C5, MCF-7, NCI-H460, and HCT-15. CDXs' effect was analyzed based on several parameters of cancer cells, and it was also verified if these compounds were substrates of glycoprotein-P (Pgp), one of the main mechanisms of resistance in cancer therapy. Pgp expression was evaluated in all cell lines, but no expression was observed, except for HCT-15. Also, when a humanized yeast expressing the human gene MDR1 was used, no conclusions could be drawn about CDXs as Pgp substrates. The selected CDXs did not induce significant differences in the metabolic parameters analyzed. These results show that some CDXs present promising antitumor activity, but other mechanisms should be triggered by these compounds.
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Affiliation(s)
- Flávia Barbosa
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS-CESPU), 4585-116 Gandra, Portugal; (F.B.); (V.M.F.G.); (A.C.); (P.M.A.S.); (H.B.); (O.Q.)
| | - Joana Araújo
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (J.A.); (A.P.); (C.F.); (M.P.)
| | - Virgínia M. F. Gonçalves
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS-CESPU), 4585-116 Gandra, Portugal; (F.B.); (V.M.F.G.); (A.C.); (P.M.A.S.); (H.B.); (O.Q.)
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences (IUCS), University Institute of Health Sciences-CESPU (IUCS-CESPU), 4585-116 Gandra, Portugal
| | - Andreia Palmeira
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (J.A.); (A.P.); (C.F.); (M.P.)
- CIIMAR-Interdisciplinary Center for Marine and Environmental Research, University of Porto, Avenida General Norton de Matos, 4450-208 Matosinhos, Portugal
| | - Andrea Cunha
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS-CESPU), 4585-116 Gandra, Portugal; (F.B.); (V.M.F.G.); (A.C.); (P.M.A.S.); (H.B.); (O.Q.)
| | - Patrícia M. A. Silva
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS-CESPU), 4585-116 Gandra, Portugal; (F.B.); (V.M.F.G.); (A.C.); (P.M.A.S.); (H.B.); (O.Q.)
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences (IUCS), University Institute of Health Sciences-CESPU (IUCS-CESPU), 4585-116 Gandra, Portugal
| | - Carla Fernandes
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (J.A.); (A.P.); (C.F.); (M.P.)
- CIIMAR-Interdisciplinary Center for Marine and Environmental Research, University of Porto, Avenida General Norton de Matos, 4450-208 Matosinhos, Portugal
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (J.A.); (A.P.); (C.F.); (M.P.)
- CIIMAR-Interdisciplinary Center for Marine and Environmental Research, University of Porto, Avenida General Norton de Matos, 4450-208 Matosinhos, Portugal
| | - Hassan Bousbaa
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS-CESPU), 4585-116 Gandra, Portugal; (F.B.); (V.M.F.G.); (A.C.); (P.M.A.S.); (H.B.); (O.Q.)
| | - Odília Queirós
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS-CESPU), 4585-116 Gandra, Portugal; (F.B.); (V.M.F.G.); (A.C.); (P.M.A.S.); (H.B.); (O.Q.)
| | - Maria Elizabeth Tiritan
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS-CESPU), 4585-116 Gandra, Portugal; (F.B.); (V.M.F.G.); (A.C.); (P.M.A.S.); (H.B.); (O.Q.)
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (J.A.); (A.P.); (C.F.); (M.P.)
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences (IUCS), University Institute of Health Sciences-CESPU (IUCS-CESPU), 4585-116 Gandra, Portugal
- CIIMAR-Interdisciplinary Center for Marine and Environmental Research, University of Porto, Avenida General Norton de Matos, 4450-208 Matosinhos, Portugal
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Moreira J, Silva PMA, Castro E, Saraiva L, Pinto M, Bousbaa H, Cidade H. BP-M345 as a Basis for the Discovery of New Diarylpentanoids with Promising Antimitotic Activity. Int J Mol Sci 2024; 25:1691. [PMID: 38338967 PMCID: PMC10855865 DOI: 10.3390/ijms25031691] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/19/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Recently, the diarylpentanoid BP-M345 (5) has been identified as a potent in vitro growth inhibitor of cancer cells, with a GI50 value between 0.17 and 0.45 µM, showing low toxicity in non-tumor cells. BP-M345 (5) promotes mitotic arrest by interfering with mitotic spindle assembly, leading to apoptotic cell death. Following on from our previous work, we designed and synthesized a library of BP-M345 (5) analogs and evaluated the cell growth inhibitory activity of three human cancer cell lines within this library in order to perform structure-activity relationship (SAR) studies and to obtain compounds with improved antimitotic effects. Four compounds (7, 9, 13, and 16) were active, and the growth inhibition effects of compounds 7, 13, and 16 were associated with a pronounced arrest in mitosis. These compounds exhibited a similar or even higher mitotic index than BP-M345 (5), with compound 13 displaying the highest antimitotic activity, associated with the interference with mitotic spindle dynamics, inducing spindle collapse and, consequently, prolonged mitotic arrest, culminating in massive cancer cell death by apoptosis.
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Affiliation(s)
- Joana Moreira
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (J.M.); (M.P.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - Patrícia M. A. Silva
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra 1317, 4585-116 Gandra, Portugal; (P.M.A.S.); (E.C.)
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra 1317, 4585-116 Gandra, Portugal
| | - Eliseba Castro
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra 1317, 4585-116 Gandra, Portugal; (P.M.A.S.); (E.C.)
| | - Lucília Saraiva
- LAQV/REQUIMTE, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal;
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (J.M.); (M.P.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - Hassan Bousbaa
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra 1317, 4585-116 Gandra, Portugal; (P.M.A.S.); (E.C.)
| | - Honorina Cidade
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; (J.M.); (M.P.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
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Pinto B, Silva JPN, Silva PMA, Barbosa DJ, Sarmento B, Tavares JC, Bousbaa H. Maximizing Anticancer Response with MPS1 and CENPE Inhibition Alongside Apoptosis Induction. Pharmaceutics 2023; 16:56. [PMID: 38258067 PMCID: PMC10818680 DOI: 10.3390/pharmaceutics16010056] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/18/2023] [Accepted: 12/24/2023] [Indexed: 01/24/2024] Open
Abstract
Antimitotic compounds, targeting key spindle assembly checkpoint (SAC) components (e.g., MPS1, Aurora kinase B, PLK1, KLP1, CENPE), are potential alternatives to microtubule-targeting antimitotic agents (e.g., paclitaxel) to circumvent resistance and side effects associated with their use. They can be classified into mitotic blockers, causing SAC-induced mitotic arrest, or mitotic drivers, pushing cells through aberrant mitosis by overriding SAC. These drugs, although advancing to clinical trials, exhibit unsatisfactory cancer treatment outcomes as monotherapy, probably due to variable cell fate responses driven by cyclin B degradation and apoptosis signal accumulation networks. We investigated the impact of inhibiting anti-apoptotic signals with the BH3-mimetic navitoclax in lung cancer cells treated with the selective CENPE inhibitor GSK923295 (mitotic blocker) or the MPS1 inhibitor BAY1217389 (mitotic driver). Our aim was to steer treated cancer cells towards cell death. BH3-mimetics, in combination with both mitotic blockers and drivers, induced substantial cell death, mainly through apoptosis, in 2D and 3D cultures. Crucially, these synergistic concentrations were less toxic to non-tumor cells. This highlights the significance of combining BH3-mimetics with antimitotics, either blockers or drivers, which have reached the clinical trial phase, to enhance their effectiveness.
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Affiliation(s)
- Bárbara Pinto
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (B.P.); (J.P.N.S.)
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Av. Pres. Antônio Carlos, 6627, Belo Horizonte 31270-901, Brazil;
| | - João P. N. Silva
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (B.P.); (J.P.N.S.)
| | - Patrícia M. A. Silva
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (B.P.); (J.P.N.S.)
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal;
| | - Daniel José Barbosa
- 1H-TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal;
- i3S—Institute for Research and Innovation in Health, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal;
| | - Bruno Sarmento
- i3S—Institute for Research and Innovation in Health, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal;
- INEB—Institute of Biomedical Engineering, University of Porto, Rua Alfredo Allen 208, 4200-393 Porto, Portugal
| | - Juliana Carvalho Tavares
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Av. Pres. Antônio Carlos, 6627, Belo Horizonte 31270-901, Brazil;
| | - Hassan Bousbaa
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (B.P.); (J.P.N.S.)
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Cunha A, Silva PMA, Sarmento B, Queirós O. Targeting Glucose Metabolism in Cancer Cells as an Approach to Overcoming Drug Resistance. Pharmaceutics 2023; 15:2610. [PMID: 38004589 PMCID: PMC10675572 DOI: 10.3390/pharmaceutics15112610] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/27/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
The "Warburg effect" consists of a metabolic shift in energy production from oxidative phosphorylation to glycolysis. The continuous activation of glycolysis in cancer cells causes rapid energy production and an increase in lactate, leading to the acidification of the tumour microenvironment, chemo- and radioresistance, as well as poor patient survival. Nevertheless, the mitochondrial metabolism can be also involved in aggressive cancer characteristics. The metabolic differences between cancer and normal tissues can be considered the Achilles heel of cancer, offering a strategy for new therapies. One of the main causes of treatment resistance consists of the increased expression of efflux pumps, and multidrug resistance (MDR) proteins, which are able to export chemotherapeutics out of the cell. Cells expressing MDR proteins require ATP to mediate the efflux of their drug substrates. Thus, inhibition of the main energy-producing pathways in cancer cells, not only induces cancer cell death per se, but also overcomes multidrug resistance. Given that most anticancer drugs do not have the ability to distinguish normal cells from cancer cells, a number of drug delivery systems have been developed. These nanodrug delivery systems provide flexible and effective methods to overcome MDR by facilitating cellular uptake, increasing drug accumulation, reducing drug efflux, improving targeted drug delivery, co-administering synergistic agents, and increasing the half-life of drugs in circulation.
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Affiliation(s)
- Andrea Cunha
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences—CESPU (IUCS—CESPU), 4585-116 Gandra, Portugal; (A.C.); (P.M.A.S.); (B.S.)
| | - Patrícia M. A. Silva
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences—CESPU (IUCS—CESPU), 4585-116 Gandra, Portugal; (A.C.); (P.M.A.S.); (B.S.)
- 1H—TOXRUN—One Health Toxicology Research Unit, University Institute of Health Sciences—CESPU (IUCS—CESPU), 3810-193 Gandra, Portugal
| | - Bruno Sarmento
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences—CESPU (IUCS—CESPU), 4585-116 Gandra, Portugal; (A.C.); (P.M.A.S.); (B.S.)
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal
| | - Odília Queirós
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences—CESPU (IUCS—CESPU), 4585-116 Gandra, Portugal; (A.C.); (P.M.A.S.); (B.S.)
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5
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Moreira J, Silva PMA, Barros M, Saraiva L, Pinto M, Bousbaa H, Cidade H. Discovery of a New Chalcone-Trimethoxycinnamide Hybrid with Antimitotic Effect: Design, Synthesis, and Structure-Activity Relationship Studies. Pharmaceuticals (Basel) 2023; 16:879. [PMID: 37375826 DOI: 10.3390/ph16060879] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/02/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023] Open
Abstract
In this work, the design and synthesis of a new chalcone-trimethoxycinnamide hybrid (7) based on the combination of subunits of two promising antiproliferative compounds (CM-M345 (1) and BP-M345 (2)), previously obtained by our research group, are reported. In order to expand the structure-activity relationship (SAR) knowledge, a new series of 7-analogues was also designed and synthetized. All the compounds were evaluated for their antitumor activity against melanoma (A375-C5), breast adenocarcinoma (MCF-7), and colorectal carcinoma (HCT116) cell lines, as well as non-tumor HPAEpiC cells. Three of the newly synthesized compounds (6, 7, and 13) exhibited potent antiproliferative activity, mainly on colorectal tumor cells (GI50 = 2.66-3.26 μM), showing hybrid 7 selectivity for tumor cells. We performed molecular mechanism studies to evaluate the potential interference of compounds with the p53 pathway, namely, p53-MDM2 interaction and mitosis in HCT116 cells. The antiproliferative activities of compounds were shown to be p53-independent. Compound 7 emerged as an antimitotic agent by inducing the mitotic arrest of colorectal tumor cells, and subsequently, cell death.
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Affiliation(s)
- Joana Moreira
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Patrícia M A Silva
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
- TOXRUN-Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal
| | - Matilde Barros
- LAQV/REQUIMTE, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Lucília Saraiva
- LAQV/REQUIMTE, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Hassan Bousbaa
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
| | - Honorina Cidade
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
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Silva JPN, Pinto B, Monteiro L, Silva PMA, Bousbaa H. Combination Therapy as a Promising Way to Fight Oral Cancer. Pharmaceutics 2023; 15:1653. [PMID: 37376101 DOI: 10.3390/pharmaceutics15061653] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/30/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Oral cancer is a highly aggressive tumor with invasive properties that can lead to metastasis and high mortality rates. Conventional treatment strategies, such as surgery, chemotherapy, and radiation therapy, alone or in combination, are associated with significant side effects. Currently, combination therapy has become the standard practice for the treatment of locally advanced oral cancer, emerging as an effective approach in improving outcomes. In this review, we present an in-depth analysis of the current advancements in combination therapies for oral cancer. The review explores the current therapeutic options and highlights the limitations of monotherapy approaches. It then focuses on combinatorial approaches that target microtubules, as well as various signaling pathway components implicated in oral cancer progression, namely, DNA repair players, the epidermal growth factor receptor, cyclin-dependent kinases, epigenetic readers, and immune checkpoint proteins. The review discusses the rationale behind combining different agents and examines the preclinical and clinical evidence supporting the effectiveness of these combinations, emphasizing their ability to enhance treatment response and overcome drug resistance. Challenges and limitations associated with combination therapy are discussed, including potential toxicity and the need for personalized treatment approaches. A future perspective is also provided to highlight the existing challenges and possible resolutions toward the clinical translation of current oral cancer therapies.
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Affiliation(s)
- João P N Silva
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
| | - Bárbara Pinto
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
| | - Luís Monteiro
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
| | - Patrícia M A Silva
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
- TOXRUN-Toxicology Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
| | - Hassan Bousbaa
- UNIPRO-Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), Cooperativa de Ensino Superior Politécnico e Universitário (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
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Abstract
The BUB3 protein plays a key role in the activation of the spindle assembly checkpoint (SAC), a ubiquitous surveillance mechanism that ensures the fidelity of chromosome segregation in mitosis and, consequently, prevents chromosome mis-segregation and aneuploidy. Besides its role in SAC signaling, BUB3 regulates chromosome attachment to the spindle microtubules. It is also involved in telomere replication and maintenance. Deficiency of the BUB3 gene has been closely linked to premature aging. Upregulation of the BUB3 gene has been found in a variety of human cancers and is associated with poor prognoses. Here, we review the structure and functions of BUB3 in mitosis, its expression in cancer and association with survival prognoses, and its potential as an anticancer target.
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Affiliation(s)
- Patrícia M. A. Silva
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), University Polytechnic Higher Education Cooperative (CESPU), Rua Central de Gandra, 4585-116 Gandra, Portugal;
- TOXRUN—Toxicology Research Unit, University Institute of Health Sciences (IUCS), University Polytechnic Higher Education Cooperative (CESPU), Rua Central de Gandra, 4585-116 Gandra, Portugal
| | - Hassan Bousbaa
- UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), University Polytechnic Higher Education Cooperative (CESPU), Rua Central de Gandra, 4585-116 Gandra, Portugal;
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
- Correspondence:
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8
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Nunes M, Silva PMA, Coelho R, Pinto C, Resende A, Bousbaa H, Almeida GM, Ricardo S. Corrigendum: Generation of Two Paclitaxel-Resistant High-Grade Serous Carcinoma Cell Lines With Increased Expression of P-Glycoprotein. Front Oncol 2022; 12:853608. [PMID: 35186774 PMCID: PMC8855481 DOI: 10.3389/fonc.2022.853608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 11/17/2022] Open
Affiliation(s)
- Mariana Nunes
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Patrícia M. A. Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal
- TOXRUN, Toxicology Research Unit, University Institute of Health Sciences, Polytechnic and University Cooperative (CESPU), Gandra, Portugal
| | - Ricardo Coelho
- Ovarian Cancer Research, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Carla Pinto
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal
| | - Albina Resende
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal
| | - Hassan Bousbaa
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal
| | - Gabriela M. Almeida
- Expression Regulation in Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- Faculty of Medicine from University of Porto (FMUP), Porto, Portugal
| | - Sara Ricardo
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
- TOXRUN, Toxicology Research Unit, University Institute of Health Sciences, Polytechnic and University Cooperative (CESPU), Gandra, Portugal
- Faculty of Medicine from University of Porto (FMUP), Porto, Portugal
- *Correspondence: Sara Ricardo,
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9
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Nunes M, Silva PMA, Coelho R, Pinto C, Resende A, Bousbaa H, Almeida GM, Ricardo S. Generation of Two Paclitaxel-Resistant High-Grade Serous Carcinoma Cell Lines With Increased Expression of P-Glycoprotein. Front Oncol 2021; 11:752127. [PMID: 34745981 PMCID: PMC8566917 DOI: 10.3389/fonc.2021.752127] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/30/2021] [Indexed: 02/06/2023] Open
Abstract
Debulking surgery followed by chemotherapy are the standard of care for high-grade serous carcinoma. After an initial good response to treatment, the majority of patients relapse with a chemoresistant profile, leading to a poor overall survival. Chemotherapy regimens used in high-grade serous carcinomas are based in a combination of classical chemotherapeutic drugs, namely, Carboplatin and Paclitaxel. The mechanisms underlying drug resistance and new drug discovery are crucial to improve patients’ survival. To uncover the molecular mechanisms of chemoresistance and test drugs capable of overcoming this resistant profile, it is fundamental to use good cellular models capable of mimicking the chemoresistant disease. Herein, we established two high-grade serous carcinoma cell lines with intrinsic resistance to Carboplatin and induced Paclitaxel resistance (OVCAR8 PTX R C and OVCAR8 PTX R P) derived from the OVCAR8 cell line. These two chemoresistant cell line variants acquired an enhanced resistance to Paclitaxel-induced cell death by increasing the drug efflux capacity, and this resistance was stable in long-term culture and following freeze/thaw cycles. The mechanism underlying Paclitaxel resistance resides in a significant increase in P-glycoprotein expression and, when this drug efflux pump was blocked with Verapamil, cells re-acquired Paclitaxel sensitivity. We generated two high-grade serous carcinoma cell lines, with a double-chemoresistant (Carboplatin and Paclitaxel) phenotype that mimics the majority of tumor recurrences in ovarian cancer context. This robust tool is suitable for preliminary drug testing towards the development of therapeutic strategies to overcome chemoresistance.
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Affiliation(s)
- Mariana Nunes
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Patrícia M A Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal.,TOXRUN, Toxicology Research Unit, University Institute of Health Sciences, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal
| | - Ricardo Coelho
- Ovarian Cancer Research, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Carla Pinto
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal
| | - Albina Resende
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal
| | - Hassan Bousbaa
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal
| | - Gabriela M Almeida
- Expression Regulation in Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.,Faculty of Medicine from University of Porto (FMUP), Porto, Portugal
| | - Sara Ricardo
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.,TOXRUN, Toxicology Research Unit, University Institute of Health Sciences, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal.,Faculty of Medicine from University of Porto (FMUP), Porto, Portugal
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10
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Novais P, Silva PMA, Amorim I, Bousbaa H. Second-Generation Antimitotics in Cancer Clinical Trials. Pharmaceutics 2021; 13:1011. [PMID: 34371703 PMCID: PMC8309102 DOI: 10.3390/pharmaceutics13071011] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/24/2021] [Accepted: 06/29/2021] [Indexed: 12/17/2022] Open
Abstract
Mitosis represents a promising target to block cancer cell proliferation. Classical antimitotics, mainly microtubule-targeting agents (MTAs), such as taxanes and vinca alkaloids, are amongst the most successful anticancer drugs. By disrupting microtubules, they activate the spindle assembly checkpoint (SAC), which induces a prolonged delay in mitosis, expected to induce cell death. However, resistance, toxicity, and slippage limit the MTA's effectiveness. With the desire to overcome some of the MTA's limitations, mitotic and SAC components have attracted great interest as promising microtubule-independent targets, leading to the so-called second-generation antimitotics (SGAs). The identification of inhibitors against most of these targets, and the promising outcomes achieved in preclinical assays, has sparked the interest of academia and industry. Many of these inhibitors have entered clinical trials; however, they exhibited limited efficacy as monotherapy, and failed to go beyond phase II trials. Combination therapies are emerging as promising strategies to give a second chance to these SGAs. Here, an updated view of the SGAs that reached clinical trials is here provided, together with future research directions, focusing on inhibitors that target the SAC components.
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Affiliation(s)
- Pedro Novais
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (P.N.); (P.M.A.S.)
- Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
- ICBAS, Instituto de Ciências Biomédicas Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Patrícia M. A. Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (P.N.); (P.M.A.S.)
| | - Isabel Amorim
- GreenUPorto (Sustainable Agrifood Production) Research Center, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal;
| | - Hassan Bousbaa
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (P.N.); (P.M.A.S.)
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11
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Durães F, Silva PMA, Novais P, Amorim I, Gales L, Esteves CIC, Guieu S, Bousbaa H, Pinto M, Sousa E. Tetracyclic Thioxanthene Derivatives: Studies on Fluorescence and Antitumor Activity. Molecules 2021; 26:molecules26113315. [PMID: 34073048 PMCID: PMC8198043 DOI: 10.3390/molecules26113315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/22/2021] [Accepted: 05/26/2021] [Indexed: 01/07/2023] Open
Abstract
Thioxanthones are bioisosteres of the naturally occurring xanthones. They have been described for multiple activities, including antitumor. As such, the synthesis of a library of thioxanthones was pursued, but unexpectedly, four tetracyclic thioxanthenes with a quinazoline–chromene scaffold were obtained. These compounds were studied for their human tumor cell growth inhibition activity, in the cell lines A375-C5, MCF-7 and NCI-H460. Photophysical studies were also performed. Two of the compounds displayed GI50 values below 10 µM for the three tested cell lines, and structure–activity relationship studies were established. Three compounds presented similar wavelengths of absorption and emission, characteristic of dyes with a push-pull character. The structures of two compounds were elucidated by X-ray crystallography. Two tetracyclic thioxanthenes emerged as hit compounds. One of the two compounds accumulated intracellularly as a bright fluorescent dye in the green channel, as analyzed by both fluorescence microscopy and flow cytometry, making it a promising theranostic cancer drug candidate.
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Affiliation(s)
- Fernando Durães
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (F.D.); (M.P.)
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Patrícia M. A. Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (P.M.A.S.); (P.N.)
| | - Pedro Novais
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (P.M.A.S.); (P.N.)
- Department of Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Isabel Amorim
- GreenUPorto (Sustainable Agrifood Production) Research Center, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal;
| | - Luís Gales
- Department of Molecular Biology, ICBAS-Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Bioengineering & Synthetic Microbiology, I3S–Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Cátia I. C. Esteves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (C.I.C.E.); (S.G.)
| | - Samuel Guieu
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (C.I.C.E.); (S.G.)
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Hassan Bousbaa
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal; (P.M.A.S.); (P.N.)
- Correspondence: (H.B.); (E.S.)
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (F.D.); (M.P.)
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Emília Sousa
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (F.D.); (M.P.)
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
- Correspondence: (H.B.); (E.S.)
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12
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Henriques AC, Silva PMA, Sarmento B, Bousbaa H. Antagonizing the spindle assembly checkpoint silencing enhances paclitaxel and Navitoclax-mediated apoptosis with distinct mechanistic. Sci Rep 2021; 11:4139. [PMID: 33603057 PMCID: PMC7893169 DOI: 10.1038/s41598-021-83743-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 02/08/2021] [Indexed: 12/16/2022] Open
Abstract
Antimitotic drugs arrest cells in mitosis through chronic activation of the spindle assembly checkpoint (SAC), leading to cell death. However, drug-treated cancer cells can escape death by undergoing mitotic slippage, due to premature mitotic exit. Therefore, overcoming slippage issue is a promising chemotherapeutic strategy to improve the effectiveness of antimitotics. Here, we antagonized SAC silencing by knocking down the MAD2-binding protein p31comet, to delay mitotic slippage, and tracked cancer cells treated with the antimitotic drug paclitaxel, over 3 days live-cell time-lapse analysis. We found that in the absence of p31comet, the duration of mitotic block was increased in cells challenged with nanomolar concentrations of paclitaxel, leading to an additive effects in terms of cell death which was predominantly anticipated during the first mitosis. As accumulation of an apoptotic signal was suggested to prevent mitotic slippage, when we challenged p31comet-depleted mitotic-arrested cells with the apoptosis potentiator Navitoclax (previously called ABT-263), cell fate was shifted to accelerated post-mitotic death. We conclude that inhibition of SAC silencing is critical for enhancing the lethality of antimitotic drugs as well as that of therapeutic apoptosis-inducing small molecules, with distinct mechanisms. The study highlights the potential of p31comet as a target for antimitotic therapies.
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Affiliation(s)
- Ana C Henriques
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central da Gandra 1317, Gandra, 4585-116, Paredes, Portugal.,INEB, Instituto Nacional de Engenharia Biomédica, Universidade Do Porto, Porto, Portugal.,Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade Do Porto, Porto, Portugal
| | - Patrícia M A Silva
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central da Gandra 1317, Gandra, 4585-116, Paredes, Portugal
| | - Bruno Sarmento
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central da Gandra 1317, Gandra, 4585-116, Paredes, Portugal.,INEB, Instituto Nacional de Engenharia Biomédica, Universidade Do Porto, Porto, Portugal.,i3S-Instituto de Investigação e Inovação Em Saúde, Universidade Do Porto, Porto, Portugal
| | - Hassan Bousbaa
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central da Gandra 1317, Gandra, 4585-116, Paredes, Portugal. .,Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade Do Porto, Porto, Portugal.
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13
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Henriques AC, Silva PMA, Sarmento B, Bousbaa H. The Mad2-Binding Protein p31 comet as a Potential Target for Human Cancer Therapy. Curr Cancer Drug Targets 2021; 21:401-415. [PMID: 33511944 DOI: 10.2174/1568009621666210129095726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/28/2020] [Revised: 12/08/2020] [Accepted: 12/13/2020] [Indexed: 11/22/2022]
Abstract
The spindle assembly checkpoint (SAC) is a surveillance mechanism that prevents mitotic exit at the metaphase-to-anaphase transition until all chromosomes have established correct bipolar attachment to spindle microtubules. Activation of SAC relies on the assembly of the mitotic checkpoint complex (MCC), which requires conformational change from inactive open Mad2 (OMad2) to the active closed Mad2 (C-Mad2) at unattached kinetochores. The Mad2-binding protein p31comet plays a key role in controlling timely mitotic exit by promoting SAC silencing, through preventing Mad2 activation and promoting MCC disassembly. Besides, increasing evidences highlight the p31comet potential as target for cancer therapy. Here, we provide an updated overview of the functional significance of p31comet in mitotic progression, and discuss the potential of deregulated expression of p31comet in cancer and in therapeutic strategies.
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Affiliation(s)
- Ana C Henriques
- Instituto de Investigacao e Formacao Avancada em Ciencias e Tecnologias da Saude, Instituto Universitario de Ciencias da Saude, CESPU, Gandra, Portugal
| | - Patrícia M A Silva
- Instituto de Investigacao e Formacao Avancada em Ciencias e Tecnologias da Saude, Instituto Universitario de Ciencias da Saude, CESPU, Gandra, Portugal
| | - Bruno Sarmento
- Instituto de Investigacao e Formacao Avancada em Ciencias e Tecnologias da Saude, Instituto Universitario de Ciencias da Saude, CESPU, Gandra, Portugal
| | - Hassan Bousbaa
- Instituto de Investigacao e Formacao Avancada em Ciencias e Tecnologias da Saude, Instituto Universitario de Ciencias da Saude, CESPU, Gandra, Portugal
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14
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França F, Silva PMA, Soares JX, Henriques AC, Loureiro DRP, Azevedo CMG, Afonso CMM, Bousbaa H. A Pyranoxanthone as a Potent Antimitotic and Sensitizer of Cancer Cells to Low Doses of Paclitaxel. Molecules 2020; 25:E5845. [PMID: 33322077 PMCID: PMC7764177 DOI: 10.3390/molecules25245845] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/04/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023] Open
Abstract
Microtubule-targeting agents (MTAs) remain a gold standard for the treatment of several cancer types. By interfering with microtubules dynamic, MTAs induce a mitotic arrest followed by cell death. This antimitotic activity of MTAs is dependent on the spindle assembly checkpoint (SAC), which monitors the integrity of the mitotic spindle and proper chromosome attachments to microtubules in order to ensure accurate chromosome segregation and timely anaphase onset. However, the cytotoxic activity of MTAs is restrained by drug resistance and/or toxicities, and had motivated the search for new compounds and/or alternative therapeutic strategies. Here, we describe the synthesis and mechanism of action of the xanthone derivative pyranoxanthone 2 that exhibits a potent anti-growth activity against cancer cells. We found that cancer cells treated with the pyranoxanthone 2 exhibited persistent defects in chromosome congression during mitosis that were not corrected over time, which induced a prolonged SAC-dependent mitotic arrest followed by massive apoptosis. Importantly, pyranoxanthone 2 was able to potentiate apoptosis of cancer cells treated with nanomolar concentrations of paclitaxel. Our data identified the potential of the pyranoxanthone 2 as a new potent antimitotic with promising antitumor potential, either alone or in combination regimens.
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Affiliation(s)
- Fábio França
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS), Rua Central de Gandra, 1317, 4585-322 Gandra, Portugal; (F.F.); (P.M.A.S.); (A.C.H.)
- Department of Biomedical Sciences and Medicine, University of Algarve, 8005-139 Faro, Portugal
| | - Patrícia M. A. Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS), Rua Central de Gandra, 1317, 4585-322 Gandra, Portugal; (F.F.); (P.M.A.S.); (A.C.H.)
| | - José X. Soares
- LAQV-REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Ana C. Henriques
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS), Rua Central de Gandra, 1317, 4585-322 Gandra, Portugal; (F.F.); (P.M.A.S.); (A.C.H.)
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
| | - Daniela R. P. Loureiro
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
- Department of Chemical Sciences, Laboratory of Organic and Pharmaceutical Chemistry, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
| | - Carlos M. G. Azevedo
- Department of Chemical Sciences, Laboratory of Organic and Pharmaceutical Chemistry, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
| | - Carlos M. M. Afonso
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
- Department of Chemical Sciences, Laboratory of Organic and Pharmaceutical Chemistry, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
| | - Hassan Bousbaa
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), University Institute of Health Sciences (IUCS), Rua Central de Gandra, 1317, 4585-322 Gandra, Portugal; (F.F.); (P.M.A.S.); (A.C.H.)
- Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR/CIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
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15
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Carraro ML, Marques S, Silva AS, Freitas B, Silva PMA, Pedrosa J, De Marco P, Bousbaa H, Fernandes C, Tiritan ME, Silva AMS, Pinto MMM. Synthesis of New Chiral Derivatives of Xanthones with Enantioselective Effect on Tumor Cell Growth and DNA Crosslinking. ChemistrySelect 2020. [DOI: 10.1002/slct.202002588] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Maria L. Carraro
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
| | - Sandra Marques
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
| | - Ana Sofia Silva
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
| | - Bruno Freitas
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
| | - Patrícia M. A. Silva
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
| | - Joel Pedrosa
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
| | - Paolo De Marco
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
| | - Hassan Bousbaa
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões Av. General Norton de Matos s/n 4050-208 Matosinhos Portugal
| | - Carla Fernandes
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões Av. General Norton de Matos s/n 4050-208 Matosinhos Portugal
| | - Maria Elizabeth Tiritan
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
- CESPU Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS) Rua Central de Gandra, 1317 4585-116 Gandra PRD Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões Av. General Norton de Matos s/n 4050-208 Matosinhos Portugal
| | - Artur M. S. Silva
- QOPNA & LAQV-REQUIMTE Departamento de Química Universidade de Aveiro Aveiro 3810-103 Aveiro Portugal
| | - Madalena M. M. Pinto
- Department of Chemical Sciences Laboratory of Organic and Pharmaceutical Chemistry Faculty of Pharmacy University of Porto Rua de Jorge Viterbo Ferreira 228 4050-313 Porto Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) Edifício do Terminal de Cruzeiros do Porto de Leixões Av. General Norton de Matos s/n 4050-208 Matosinhos Portugal
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16
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Pinto P, Machado CM, Moreira J, Almeida JDP, Silva PMA, Henriques AC, Soares JX, Salvador JAR, Afonso C, Pinto M, Bousbaa H, Cidade H. Chalcone derivatives targeting mitosis: synthesis, evaluation of antitumor activity and lipophilicity. Eur J Med Chem 2019; 184:111752. [PMID: 31610374 DOI: 10.1016/j.ejmech.2019.111752] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 08/12/2019] [Revised: 09/22/2019] [Accepted: 10/01/2019] [Indexed: 02/08/2023]
Abstract
This study describes the synthesis of a series of chalcones, including pyrazole and α,β-epoxide derivatives, and evaluation of their cell growth inhibitory activity in three human tumor cell lines, as well as their lipophilicity using liposomes as a biomimetic membrane model. Structure-activity and structure-lipophilicity relationships were established for the synthetized chalcones. From this work, nine chalcones (3, 5, 9, 11, 15-19) showing suitable drug-like lipophilicity with potent growth inhibitory activity were identified, being the growth inhibitory effect of compounds 15-17 associated with a pronounced antimitotic effect. Compounds 15-17 affected spindle assembly and, as a consequence, arrested cells at metaphase in NCI-H460 cells, culminating in cell death. Amongst the compounds tested, compound 15 exhibited the highest antimitotic activity as revealed by mitotic index calculation. Moreover, 15 was able to enhance chemosensitivity of tumor cells to low doses of paclitaxel in NCI-H460 cells. The results indicate that 15 exerts its antiproliferative activity by affecting microtubules and causing cell death subsequently to a mitotic arrest, and thus has the potential for antitumor activity.
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Affiliation(s)
- Patricia Pinto
- Laboratório de Química Farmacêutica, Faculdade de Farmácia, Universidade de Coimbra, Pólo III - Polo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-354, Coimbra, Portugal
| | - Carmen Mariana Machado
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Joana Moreira
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/n, 4450-208, Matosinhos, Portugal
| | - José Diogo P Almeida
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Rua Central de Gandra 1317, 4585-116, Gandra PRD, Portugal
| | - Patrícia M A Silva
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Rua Central de Gandra 1317, 4585-116, Gandra PRD, Portugal
| | - Ana C Henriques
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Rua Central de Gandra 1317, 4585-116, Gandra PRD, Portugal
| | - José X Soares
- LAQV-REQUIMTE, Laboratório de Química Aplicada, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Jorge A R Salvador
- Laboratório de Química Farmacêutica, Faculdade de Farmácia, Universidade de Coimbra, Pólo III - Polo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-354, Coimbra, Portugal; Centro de Neurociências e Biologia Celular, Coimbra, Portugal
| | - Carlos Afonso
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/n, 4450-208, Matosinhos, Portugal
| | - Madalena Pinto
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/n, 4450-208, Matosinhos, Portugal
| | - Hassan Bousbaa
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Rua Central de Gandra 1317, 4585-116, Gandra PRD, Portugal.
| | - Honorina Cidade
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/n, 4450-208, Matosinhos, Portugal.
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Silva PMA, Delgado ML, Ribeiro N, Florindo C, Tavares ÁA, Ribeiro D, Lopes C, do Amaral B, Bousbaa H, Monteiro LS. Spindly and Bub3 expression in oral cancer: Prognostic and therapeutic implications. Oral Dis 2019; 25:1291-1301. [PMID: 30866167 DOI: 10.1111/odi.13089] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 09/07/2018] [Revised: 01/24/2019] [Accepted: 03/07/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Bub3 and Spindly are essential proteins required for the activation and inactivation of the spindle assembly checkpoint, respectively. Here, we explored the clinicopathological significance and the therapeutic potential of the opposing roles of the two proteins in oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS Bub3 and Spindly expression was evaluated by immunohistochemistry in 62 tissue microarrays from OSCC and by real-time PCR in OSCC cell lines and in normal human oral keratinocytes. The results were analyzed as to their clinicopathological significance. RNA interference-mediated Spindly or Bub3 inhibition was combined with cisplatin treatment, and the effect on the viability of OSCC cells was assessed. RESULTS Overexpression of Bub3 and Spindly was detected in OSCC patients. High expression of Spindly, Bub3, or both was an independent prognostic indicator for cancer-specific survival and was associated with increased cellular proliferation. Accordingly, Bub3 and Spindly were upregulated in OSCC cells comparatively to their normal counterpart. Inhibition of Bub3 or Spindly was cytotoxic to OSCC cells and enhanced their chemosensitivity to cisplatin. CONCLUSIONS The data point out Bub3 and Spindly as potential markers of proliferation and prognosis, and highlight the potential therapeutic benefit of combining their inhibition with cisplatin.
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Affiliation(s)
- Patrícia M A Silva
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, CESPU, Gandra, Portugal
| | - Maria Leonor Delgado
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, CESPU, Gandra, Portugal
| | - Nilza Ribeiro
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, CESPU, Gandra, Portugal
| | - Cláudia Florindo
- Centre for Biomedical Research (CBMR), University of Algarve, Faro, Portugal.,Departamento Ciências Biomédicas e Medicina, University of Algarve, Faro, Portugal
| | - Álvaro A Tavares
- Centre for Biomedical Research (CBMR), University of Algarve, Faro, Portugal.,Departamento Ciências Biomédicas e Medicina, University of Algarve, Faro, Portugal
| | - Diana Ribeiro
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, CESPU, Gandra, Portugal
| | - Carlos Lopes
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, CESPU, Gandra, Portugal.,Molecular Pathology and Immunology Department, Institute of Biomedical Sciences Abel Salazar (ICBAS), Porto University, Porto, Portugal
| | - Barbas do Amaral
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, CESPU, Gandra, Portugal.,Stomatology Department, Oporto Hospitalar Centre, Hospital de Santo António, Porto, Portugal
| | - Hassan Bousbaa
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, CESPU, Gandra, Portugal.,Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Matosinhos, Portugal
| | - Luís Silva Monteiro
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, CESPU, Gandra, Portugal
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18
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Moreira J, Ribeiro D, Silva PMA, Nazareth N, Monteiro M, Palmeira A, Saraiva L, Pinto M, Bousbaa H, Cidade H. New Alkoxy Flavone Derivatives Targeting Caspases: Synthesis and Antitumor Activity Evaluation. Molecules 2018; 24:molecules24010129. [PMID: 30602686 PMCID: PMC6337158 DOI: 10.3390/molecules24010129] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/23/2018] [Accepted: 12/25/2018] [Indexed: 12/13/2022] Open
Abstract
The antitumor activity of natural flavonoids has been exhaustively reported. Previously it has been demonstrated that prenylation of flavonoids allows the discovery of new compounds with improved antitumor activity through the activation of caspase-7 activity. The synthesis of twenty-five flavonoids (4–28) with one or more alkyl side chains was carried out. The synthetic approach was based on the reaction with alkyl halide in alkaline medium by microwave (MW) irradiation. The in vitro cell growth inhibitory activity of synthesized compounds was investigated in three human tumor cell lines. Among the tested compounds, derivatives 6, 7, 9, 11, 13, 15, 17, and 18 revealed potent growth inhibitory activity (GI50 < 10 μM), being the growth inhibitory effect of compound 13 related with a pronounced caspase-7 activation on MCF-7 breast cancer cells and yeasts expressing human caspase-7. A quantitative structure-activity relationship (QSAR) model predicted that hydrophilicity, pattern of ring substitution/shape, and presence of partial negative charged atoms were the descriptors implied in the growth inhibitory effect of synthesized compounds. Docking studies on procaspase-7 allowed predicting the binding of compound 13 to the allosteric site of procaspase-7.
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Affiliation(s)
- Joana Moreira
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | - Diana Ribeiro
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal.
| | - Patrícia M A Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal.
| | - Nair Nazareth
- LAQV/REQUIMTE, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Madalena Monteiro
- LAQV/REQUIMTE, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Andreia Palmeira
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | - Lucília Saraiva
- LAQV/REQUIMTE, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | - Hassan Bousbaa
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal.
| | - Honorina Cidade
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
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19
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Henriques AC, Ribeiro D, Pedrosa J, Sarmento B, Silva PMA, Bousbaa H. Mitosis inhibitors in anticancer therapy: When blocking the exit becomes a solution. Cancer Lett 2018; 440-441:64-81. [PMID: 30312726 DOI: 10.1016/j.canlet.2018.10.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/12/2018] [Accepted: 10/02/2018] [Indexed: 12/11/2022]
Abstract
Current microtubule-targeting agents (MTAs) remain amongst the most important antimitotic drugs used against a broad range of malignancies. By perturbing spindle assembly, MTAs activate the spindle assembly checkpoint (SAC), which induces mitotic arrest and subsequent apoptosis. However, besides toxic side effects and resistance, mitotic slippage and failure in triggering apoptosis in various cancer cells are limiting factors of MTAs efficacy. Alternative strategies to target mitosis without affecting microtubules have, thus, led to the identification of small molecules, such as those that target spindle Kinesins, Aurora and Polo-like kinases. Unfortunately, these so-called second-generation of antimitotics, encompassing mitotic blockers and mitotic drivers, have failed in clinical trials. Our recent understanding regarding the mechanisms of cell death during a mitotic arrest pointed out apoptosis as the main variable, providing an opportunity to control the cell fates and influence the effectiveness of antimitotics. Here, we provide an overview on the second-generation of antimitotics, and discuss possible strategies that exploit SAC activity, mitotic slippage/exit and apoptosis induction, in order to improve the efficacy of anticancer strategies that target mitosis.
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Affiliation(s)
- Ana C Henriques
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal; INEB, Instituto Nacional de Engenharia Biomédica, Universidade Do Porto, Porto, Portugal
| | - Diana Ribeiro
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade Do Porto, Porto, Portugal
| | - Joel Pedrosa
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal
| | - Bruno Sarmento
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal; INEB, Instituto Nacional de Engenharia Biomédica, Universidade Do Porto, Porto, Portugal; i3S - Instituto de Investigação e Inovação Em Saúde, Universidade Do Porto, Porto, Portugal
| | - Patrícia M A Silva
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal
| | - Hassan Bousbaa
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade Do Porto, Porto, Portugal.
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20
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Alves CA, Evtyugina M, Vicente AMP, Vicente ED, Nunes TV, Silva PMA, Duarte MAC, Pio CA, Amato F, Querol X. Chemical profiling of PM 10 from urban road dust. Sci Total Environ 2018; 634:41-51. [PMID: 29626769 DOI: 10.1016/j.scitotenv.2018.03.338] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/08/2018] [Accepted: 03/27/2018] [Indexed: 05/12/2023]
Abstract
Road dust resuspension is one of the main sources of particulate matter with impacts on air quality, health and climate. With the aim of characterising the thoracic fraction, a portable resuspension chamber was used to collect road dust from five main roads in Oporto and an urban tunnel in Braga, north of Portugal. The PM10 samples were analysed for: i) carbonates by acidification and quantification of the evolved CO2, ii) carbonaceous content (OC and EC) by a thermo-optical technique, iii) elemental composition by ICP-MS and ICP-AES after acid digestion, and iv) organic speciation by GC-MS. Dust loadings of 0.48±0.39mgPM10m-2 were obtained for asphalt paved roads. A much higher mean value was achieved in a cobbled pavement (50mgPM10m-2). In general, carbonates were not detected in PM10. OC and EC accounted for PM10 mass fractions up to 11% and 5%, respectively. Metal oxides accounted for 29±7.5% of the PM10 mass from the asphalt paved roads and 73% in samples from the cobbled street. Crustal and anthropogenic elements, associated with tyre and brake wear, dominated the inorganic fraction. PM10 comprised hundreds of organic constituents, including hopanoids, n-alkanes and other aliphatics, polycyclic aromatic hydrocarbons (PAH), alcohols, sterols, various types of acids, glycerol derivatives, lactones, sugars and derivatives, phenolic compounds and plasticizers. In samples from the cobbled street, these organic classes represented only 439μgg-1PM10, while for other pavements mass fractions up to 65mgg-1PM10 were obtained. Except for the cobbled street, on average, about 40% of the analysed organic fraction was composed of plasticizers. Although the risk via inhalation of PAH was found to be insignificant, the PM10 from some roads can contribute to an estimated excess of 332 to 2183 per million new cancer cases in adults exposed via ingestion and dermal contact.
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Affiliation(s)
- C A Alves
- Centre for Environmental and Marine Studies (CESAM), Department of Environment, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Evtyugina
- Centre for Environmental and Marine Studies (CESAM), Department of Environment, University of Aveiro, 3810-193 Aveiro, Portugal
| | - A M P Vicente
- Centre for Environmental and Marine Studies (CESAM), Department of Environment, University of Aveiro, 3810-193 Aveiro, Portugal
| | - E D Vicente
- Centre for Environmental and Marine Studies (CESAM), Department of Environment, University of Aveiro, 3810-193 Aveiro, Portugal
| | - T V Nunes
- Centre for Environmental and Marine Studies (CESAM), Department of Environment, University of Aveiro, 3810-193 Aveiro, Portugal
| | - P M A Silva
- Centre for Environmental and Marine Studies (CESAM), Department of Environment, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M A C Duarte
- Centre for Environmental and Marine Studies (CESAM), Department of Environment, University of Aveiro, 3810-193 Aveiro, Portugal
| | - C A Pio
- Centre for Environmental and Marine Studies (CESAM), Department of Environment, University of Aveiro, 3810-193 Aveiro, Portugal
| | - F Amato
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona 08034, Spain
| | - X Querol
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona 08034, Spain
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21
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Neves AR, Correia-da-Silva M, Silva PMA, Ribeiro D, Sousa E, Bousbaa H, Pinto M. Synthesis of New Glycosylated Flavonoids with Inhibitory Activity on Cell Growth. Molecules 2018; 23:molecules23051093. [PMID: 29734739 PMCID: PMC6102538 DOI: 10.3390/molecules23051093] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/02/2018] [Accepted: 05/02/2018] [Indexed: 01/22/2023] Open
Abstract
Natural flavonoids and xanthone glycosides display several biological activities, with the glycoside moiety playing an important role in the mechanism of action of these metabolites. Herein, to give further insights into the inhibitory activity on cell growth of these classes of compounds, the synthesis of four flavonoids (5, 6, 9, and 10) and one xanthone (7) containing one or more acetoglycoside moieties was carried out. Acetyl groups were introduced using acetic anhydride and microwave irradiation. The introduction of one or two acetoglycoside moieties in the framework of 3,7-dihydroxyflavone (4) was performed using two synthetic methods: the Michael reaction and the Koenigs-Knorr reaction. The in vitro cell growth inhibitory activity of compounds 5, 6, 7, 9, and 10 was investigated in six human tumor cell lines: A375-C5 (malignant melanoma IL-1 insensitive), MCF-7 (breast adenocarcinoma), NCI-H460 (non-small cell lung cancer), U251 (glioblastoma astrocytoma), U373 (glioblastoma astrocytoma), and U87MG (glioblastoma astrocytoma). The new flavonoid 3-hydroxy-7-(2,3,4,6-tetra-O-acetyl-β-glucopyranosyl) flavone (10) was the most potent compound in all tumor cell lines tested, with GI50 values < 8 μM and a notable degree of selectivity for cancer cells.
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Affiliation(s)
- Ana R Neves
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N 4450-208 Matosinhos, Portugal.
| | - Marta Correia-da-Silva
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N 4450-208 Matosinhos, Portugal.
| | - Patrícia M A Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal.
| | - Diana Ribeiro
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal.
| | - Emília Sousa
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N 4450-208 Matosinhos, Portugal.
| | - Hassan Bousbaa
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N 4450-208 Matosinhos, Portugal.
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal.
| | - Madalena Pinto
- Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N 4450-208 Matosinhos, Portugal.
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22
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Silva PMA, Ribeiro N, Lima RT, Andrade C, Diogo V, Teixeira J, Florindo C, Tavares Á, Vasconcelos MH, Bousbaa H. Suppression of spindly delays mitotic exit and exacerbates cell death response of cancer cells treated with low doses of paclitaxel. Cancer Lett 2017; 394:33-42. [PMID: 28249757 DOI: 10.1016/j.canlet.2017.02.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/03/2017] [Accepted: 02/20/2017] [Indexed: 11/19/2022]
Abstract
Microtubule-targeting agents (MTAs) are used extensively for the treatment of diverse types of cancer. They block cancer cells in mitosis through the activation of the spindle assembly checkpoint (SAC), the surveillance mechanism that ensures accurate chromosome segregation at the onset of anaphase. However, the cytotoxic activity of MTAs is limited by premature mitotic exit (mitotic slippage) due to SAC silencing. Here we have explored the dual role of the protein Spindly in chromosome attachments and SAC silencing to analyze the consequences of its depletion on the viability of tumor cells treated with clinically relevant doses of paclitaxel. As expected, siRNA-mediated Spindly suppression induced chromosome misalignment and accumulation of cells in mitosis. Remarkably, these cells were more sensitive to low-doses of paclitaxel. Sensitization was due to an increase in the length of mitotic arrest and high frequency of multinucleated cells, both correlated with an exacerbated post-mitotic cell death response as determined by cell fate profiling. Thus, by affecting both SAC silencing and chromosome attachment, Spindly targeting offers a double-edged sword that potentiates tumor cell killing by clinically relevant doses of paclitaxel, providing a rationale for combination chemotherapy against cancer.
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Affiliation(s)
- Patrícia M A Silva
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal; Centre for Biomedical Research (CBMR), University of Algarve, Faro 8005-139, Portugal; Departamento Ciências Biomédicas e Medicina, University of Algarve, Faro 8005-139, Portugal
| | - Nilza Ribeiro
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - Raquel T Lima
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Porto, Portugal; Cancer Drug Resistance Group, IPATIMUP-Institute of Molecular Pathology and Immunology of the University of Porto, Portugal; Department of Pathology, FMUP-Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Cláudia Andrade
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Vânia Diogo
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - Joana Teixeira
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - Cláudia Florindo
- Centre for Biomedical Research (CBMR), University of Algarve, Faro 8005-139, Portugal; Departamento Ciências Biomédicas e Medicina, University of Algarve, Faro 8005-139, Portugal
| | - Álvaro Tavares
- Centre for Biomedical Research (CBMR), University of Algarve, Faro 8005-139, Portugal; Departamento Ciências Biomédicas e Medicina, University of Algarve, Faro 8005-139, Portugal
| | - M Helena Vasconcelos
- i3S-Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Porto, Portugal; Cancer Drug Resistance Group, IPATIMUP-Institute of Molecular Pathology and Immunology of the University of Porto, Portugal; Laboratory of Microbiology, Department of Biological Sciences, FFUP-Faculty of Pharmacy of the University of Porto, Porto, Portugal
| | - Hassan Bousbaa
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
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23
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Marques S, Fonseca J, Silva PMA, Bousbaa H. Targeting the spindle assembly checkpoint for breast cancer treatment. Curr Cancer Drug Targets 2016; 15:272-81. [PMID: 25731686 DOI: 10.2174/1568009615666150302130010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 02/08/2015] [Accepted: 02/26/2015] [Indexed: 11/22/2022]
Abstract
Breast cancer is the most common malignancy in women worldwide and the second leading cause of cancer deaths after lung cancer. As in other malignancies, aneuploidy is a common feature of breast cancer and influences its behavior. Aneuploidy has been linked to inappropriate activity of the spindle assembly checkpoint (SAC), a surveillance mechanism that, in normal cells, prevents anaphase onset until correct alignment of all chromosomes at the metaphase is achieved. Interestingly, the widely used anti-microtubule drugs, vinca alkaloids and taxanes, kill cancer cells through chronic arrest in mitosis as a consequence of chronic SAC activation. Deregulated SAC has been reported in breast cancer in many reports and presents an attractive therapeutic strategy. We present here a review of the current knowledge on the SAC defects and the underlying molecular mechanisms in breast cancer, and discuss the potential of SAC components as targets for breast cancer therapies.
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Affiliation(s)
| | | | | | - Hassan Bousbaa
- Instituto de Investigacao e Formacao Avançada em Ciencias e Tecnologias da Saude, CESPU, Rua Central da Gandra 1317, 4585-116 Gandra, Paredes, Portugal.
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24
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Silva PMA, Tavares ÁA, Bousbaa H. Co-silencing of human Bub3 and dynein highlights an antagonistic relationship in regulating kinetochore-microtubule attachments. FEBS Lett 2015; 589:3588-94. [PMID: 26526612 DOI: 10.1016/j.febslet.2015.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 07/09/2015] [Revised: 10/03/2015] [Accepted: 10/15/2015] [Indexed: 11/30/2022]
Abstract
We previously reported that the spindle assembly checkpoint protein Bub3 is involved in regulating kinetochore-microtubule (KT-MT) attachments. Also, Bub3 was reported to interact with the microtubule motor protein dynein. Here we examined how this interaction contributes to KT-MT attachments. Depletion of Bub3 or dynein induced misaligned chromosomes, consistent with their role in KT-MT attachments. Unexpectedly, co-silencing of both proteins partially suppressed the misalignment phenotype and restored chromosome congression. Consistent with these observations, KT-MT attachments in co-depleted cells were stable, able to drive chromosome congression, and produce inter- and intra-kinetochore stretch, indicating they are functional. We suggest that a mutual antagonism exists between Bub3 and dynein to ensure optimal KT-MT attachments.
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Affiliation(s)
- Patrícia M A Silva
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal; Centre for Biomedical Research (CBMR), University of Algarve, Faro 8005-139, Portugal
| | - Álvaro A Tavares
- Centre for Biomedical Research (CBMR), University of Algarve, Faro 8005-139, Portugal; Departamento Ciências Biomédicas e Medicina, University of Algarve, Faro 8005-139, Portugal
| | - Hassan Bousbaa
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
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25
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Silva PMA, Reis RM, Bolanos-Garcia VM, Florindo C, Tavares ÁA, Bousbaa H. Dynein-dependent transport of spindle assembly checkpoint proteins off kinetochores toward spindle poles. FEBS Lett 2014; 588:3265-73. [PMID: 25064841 DOI: 10.1016/j.febslet.2014.07.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/24/2014] [Accepted: 07/15/2014] [Indexed: 12/31/2022]
Abstract
A predominant mechanism of spindle assembly checkpoint (SAC) silencing is dynein-mediated transport of certain kinetochore proteins along microtubules. There are still conflicting data as to which SAC proteins are dynein cargoes. Using two ATP reduction assays, we found that the core SAC proteins Mad1, Mad2, Bub1, BubR1, and Bub3 redistributed from attached kinetochores to spindle poles, in a dynein-dependent manner. This redistribution still occurred in metaphase-arrested cells, at a time when the SAC should be satisfied and silenced. Unexpectedly, we found that a pool of Hec1 and Mis12 also relocalizes to spindle poles, suggesting KMN components as additional dynein cargoes. The potential significance of these results for SAC silencing is discussed.
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Affiliation(s)
- Patrícia M A Silva
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal; Centre for Molecular and Structural Biomedicine,CBME/IBB, University of Algarve, Faro 8005-139, Portugal
| | - Rita M Reis
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal
| | - Victor M Bolanos-Garcia
- Faculty of Health and Life Sciences, Department of Biological and Medical Sciences, Oxford Brookes University, Oxford, United Kingdom
| | - Claudia Florindo
- Centre for Molecular and Structural Biomedicine,CBME/IBB, University of Algarve, Faro 8005-139, Portugal; Departamento Ciências Biomédicas e Medicina, University of Algarve, Faro 8005-139, Portugal
| | - Álvaro A Tavares
- Centre for Molecular and Structural Biomedicine,CBME/IBB, University of Algarve, Faro 8005-139, Portugal; Departamento Ciências Biomédicas e Medicina, University of Algarve, Faro 8005-139, Portugal
| | - Hassan Bousbaa
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal; Centro de Química Medicinal da Universidade do Porto (CEQUIMED-UP), Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
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26
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Moura IMB, Delgado ML, Silva PMA, Lopes CA, do Amaral JB, Monteiro LS, Bousbaa H. High CDC20 expression is associated with poor prognosis in oral squamous cell carcinoma. J Oral Pathol Med 2013; 43:225-31. [DOI: 10.1111/jop.12115] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Inês M. B. Moura
- Centro de Investigação em Ciências da Saúde (CICS); Instituto Superior de Ciências da Saúde - Norte; CESPU; Gandra PRD Portugal
| | - Maria L. Delgado
- Centro de Investigação em Ciências da Saúde (CICS); Instituto Superior de Ciências da Saúde - Norte; CESPU; Gandra PRD Portugal
| | - Patrícia M. A. Silva
- Centro de Investigação em Ciências da Saúde (CICS); Instituto Superior de Ciências da Saúde - Norte; CESPU; Gandra PRD Portugal
| | - Carlos A. Lopes
- Molecular Pathology and Immunology Department; Institute of Biomedical Sciences Abel Salazar (ICBAS); University of Porto; Porto Portugal
| | - José B. do Amaral
- Stomatology Department; Hospital de Santo António; Centro Hospitalar do Porto; Porto Portugal
| | - Luís S. Monteiro
- Centro de Investigação em Ciências da Saúde (CICS); Instituto Superior de Ciências da Saúde - Norte; CESPU; Gandra PRD Portugal
| | - Hassan Bousbaa
- Centro de Investigação em Ciências da Saúde (CICS); Instituto Superior de Ciências da Saúde - Norte; CESPU; Gandra PRD Portugal
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