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The Insulin-like Growth Factor System and Colorectal Cancer. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081274. [PMID: 36013453 PMCID: PMC9410426 DOI: 10.3390/life12081274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 11/29/2022]
Abstract
Insulin-like growth factors (IGFs) are peptides which exert mitogenic, endocrine and cytokine activities. Together with their receptors, binding proteins and associated molecules, they participate in numerous pathophysiological processes, including cancer development. Colorectal cancer (CRC) is a disease with high incidence and mortality rates worldwide, whose etiology usually represents a combination of the environmental and genetic factors. IGFs are most often increased in CRC, enabling excessive autocrine/paracrine stimulation of the cell growth. Overexpression or increased activation/accessibility of IGF receptors is a coinciding step which transmits IGF-related signals. A number of molecules and biochemical mechanisms exert modulatory effects shaping the final outcome of the IGF-stimulated processes, frequently leading to neoplastic transformation in the case of irreparable disbalance. The IGF system and related molecules and pathways which participate in the development of CRC are the focus of this review.
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2
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Brito AF, Abrantes AM, Teixo R, Pires AS, Ribeiro AC, Ferreira RF, Mascarenhas A, Puga T, Laranjo M, Caramelo F, Boin I, Jefferson DM, Gonçalves C, Martins R, Tavares I, Ribeiro IP, Sarmento-Ribeiro AB, Carreira IM, Souza D, Tralhão JG, Botelho MF. Iodine‑131 metabolic radiotherapy leads to cell death and genomic alterations through NIS overexpression on cholangiocarcinoma. Int J Oncol 2020; 56:709-727. [PMID: 31922240 PMCID: PMC7010220 DOI: 10.3892/ijo.2020.4957] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 09/24/2019] [Indexed: 12/30/2022] Open
Abstract
Cholangiocarcinoma (CC) is an aggressive liver tumor with limited therapeutic options. Natrium-iodide symporter (NIS) mediates the uptake of iodine by the thyroid, representing a key component in metabolic radiotherapy using iodine-131 (131I) for the treatment of thyroid cancer. NIS expression is increased in CC, providing the opportunity for a novel therapeutic approach for this type of tumor. Thus, in this study, we aimed to evaluate therapeutic efficacy of 131I in two human CC cell lines. Uptake experiments analyzed the 131I uptake profiles of the tumor cell lines under study. The cells were irradiated with various doses of 131I to evaluate and characterize the effects of metabolic radiotherapy. NIS protein expression was assessed by immunofluorescence methods. Cell survival was evaluated by clonogenic assay and flow cytometry was used to assess cell viability, and the type of death and alterations in the cell cycle. The genomic and epigenetic characterization of both CC cells was performed before and after irradiation. NIS gene expression was evaluated in the CC cells by RT-qPCR. The results revealed that CC cells had a higher expression of NIS. 131I induced a decrease in cell survival in a dose-dependent manner. With the increasing irradiation dose, a decrease in cell viability was observed, with a consequent increase in cell death by initial apoptosis. Karyotype and array comparative genomic hybridization (aCGH) analyses revealed that both CC cell lines were near-triploid with several numerical and structural chromosomal rearrangements. NIS gene expression was increased in the TFK-1 and HuCCT1 cells in a time-dependent manner. On the whole, the findings of this study demonstrate that the presence of NIS in cholangiocarcinoma cell lines is crucial for the decreased cell viability and survival observed following the exposure of cholangiocarcinoma cells to 131I.
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Affiliation(s)
- Ana Filipa Brito
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Ana Margarida Abrantes
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Ricardo Teixo
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Ana Salomé Pires
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Ana Cláudia Ribeiro
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | | | - Alexandra Mascarenhas
- Cytogenetics and Genomics Laboratory, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Tiago Puga
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Mafalda Laranjo
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Francisco Caramelo
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Ilka Boin
- Department of Surgery, Faculty of Medical Sciences of University of Campinas (FCM/UNICAMP), Campinas, SP 13083‑887, Brazil
| | - Douglas M Jefferson
- Tufts University School of Medicine, Department of Integrative Physiology and Pathobiology, Medford, MA 02155, USA
| | - Cristina Gonçalves
- Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Ricardo Martins
- Faculty of Medicine of University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Inês Tavares
- Cytogenetics and Genomics Laboratory, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Ilda Patrícia Ribeiro
- Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Ana Bela Sarmento-Ribeiro
- Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Isabel Marques Carreira
- Institute for Clinical and Biomedical Research Area of Environment Genetics and Oncobiology, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
| | - Doroteia Souza
- Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto (FAMERP), São José do Rio Preto, SP 15090‑000, Brazil
| | | | - Maria Filomena Botelho
- Biophysics Institute, CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000‑354 Coimbra, Portugal
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Carvalho MJ, Laranjo M, Abrantes AM, Casalta-Lopes J, Sarmento-Santos D, Costa T, Serambeque B, Almeida N, Gonçalves T, Mamede C, Encarnação J, Oliveira R, Paiva A, de Carvalho R, Botelho F, Oliveira C. Endometrial Cancer Spheres Show Cancer Stem Cells Phenotype and Preference for Oxidative Metabolism. Pathol Oncol Res 2018; 25:1163-1174. [PMID: 30499076 DOI: 10.1007/s12253-018-0535-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 10/31/2018] [Indexed: 01/03/2023]
Abstract
This study aimed to characterize endometrial cancer regarding cancer stem cells (CSC) markers, regulatory and differentiation pathways, tumorigenicity and glucose metabolism. Endometrial cancer cell line ECC1 was submitted to sphere forming protocols. The first spheres generation (ES1) was cultured in adherent conditions (G1). This procedure was repeated and was obtained generations of spheres (ES1, ES2 and ES3) and spheres-derived cells in adherent conditions (G1, G2 and G3). Populations were characterized regarding CD133, CD24, CD44, aldehyde dehydrogenase (ALDH), hormonal receptors, HER2, P53 and β-catenin, fluorine-18 fluorodeoxyglucose ([18F]FDG) uptake and metabolism by NMR spectroscopy. An heterotopic model evaluated differential tumor growth. The spheres self-renewal was higher in ES3. The putative CSC markers CD133, CD44 and ALDH expression were higher in spheres. The expression of estrogen receptor (ER)α and P53 decreased in spheres, ERβ and progesterone receptor had no significant changes and β-catenin showed a tendency to increase. There was a higher 18F-FDG uptake in spheres, which also showed a lower lactate production and an oxidative cytosol status. The tumorigenesis in vivo showed an earlier growth of tumours derived from ES3. Endometrial spheres presented self-renewal and differentiation capacity, expressed CSC markers and an undifferentiated phenotype, showing preference for oxidative metabolism.
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Affiliation(s)
- Maria João Carvalho
- Gynecology Service, Coimbra Hospital and Universitary Centre, Coimbra, Portugal. .,Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal. .,Institute for Clinical and Biomedical Research (iCBR), area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal. .,CNC.IBILI, University of Coimbra, Coimbra, Portugal. .,Universitary Clinic of Gynecology, University of Coimbra, Coimbra, Portugal.
| | - Mafalda Laranjo
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research (iCBR), area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
| | - Ana Margarida Abrantes
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research (iCBR), area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
| | - João Casalta-Lopes
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research (iCBR), area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal.,Radiotherapy Service, Coimbra Hospital and Universitary Centre, Coimbra, Portugal
| | | | - Tânia Costa
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Beatriz Serambeque
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Nuno Almeida
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Telmo Gonçalves
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Catarina Mamede
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research (iCBR), area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - João Encarnação
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research (iCBR), area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Rui Oliveira
- Pathology Service, Coimbra Hospital and Universitary Centre, Coimbra, Portugal
| | - Artur Paiva
- Flow Cytometry Unit, Coimbra Hospital and Universitary Centre, Coimbra, Portugal
| | - Rui de Carvalho
- Centre for Functional Ecology, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Coimbra, Portugal
| | - Filomena Botelho
- Biophysics Institute, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Institute for Clinical and Biomedical Research (iCBR), area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
| | - Carlos Oliveira
- Institute for Clinical and Biomedical Research (iCBR), area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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Synthesis, radiolabeling and biological distribution of a new dioxime derivative as a potential tumor imaging agent. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5310-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Noyhouzer T, L'Homme C, Beaulieu I, Mazurkiewicz S, Kuss S, Kraatz HB, Canesi S, Mauzeroll J. Ferrocene-Modified Phospholipid: An Innovative Precursor for Redox-Triggered Drug Delivery Vesicles Selective to Cancer Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4169-4178. [PMID: 26987014 DOI: 10.1021/acs.langmuir.6b00511] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Controlled payload release is one of the key elements in the creation of a reliable drug delivery system. We report the discovery of a drug delivery vessel able to transport chemotherapeutic agents to target cancer cells and selectively trigger their release using the electrochemical activity of a ferrocene-modified phospholipid. Supported by in vitro assays, the competitive advantages of this discovery are (i) the simple one step scalability of the synthetic process, (ii) the stable encapsulation of toxic drugs (doxorubicin) during transport, and (iii) the selective redox triggering of the liposomes to harness their cytotoxic payload at the cancer site. Specifically, the redox-modified giant unilamellar vesicle and liposomes were characterized using advanced methods such as scanning electrochemical microscopy (SECM), transmission electron microscopy (TEM), dynamic light scattering (DLS), and fluorescent imaging.
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Affiliation(s)
- Tomer Noyhouzer
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
| | - Chloé L'Homme
- Laboratoire de Méthodologie et Synthèse de Produits Naturels, Université du Québec à Montréal , C.P. 8888, Succ. Centre-Ville, Montréal, H3C 3P8, Québec, Canada
| | - Isabelle Beaulieu
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
| | - Stephanie Mazurkiewicz
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
| | - Sabine Kuss
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
| | - Heinz-Bernhard Kraatz
- Department of Physical and Environmental Sciences, University of Toronto Scarborough , Toronto, Ontario M1C 1A4, Canada
| | - Sylvain Canesi
- Laboratoire de Méthodologie et Synthèse de Produits Naturels, Université du Québec à Montréal , C.P. 8888, Succ. Centre-Ville, Montréal, H3C 3P8, Québec, Canada
| | - Janine Mauzeroll
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A OB8
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6
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Mamede AC, Guerra S, Laranjo M, Santos K, Carvalho MJ, Carvalheiro T, Moura P, Paiva A, Abrantes AM, Maia CJ, Botelho MF. Oxidative Stress, DNA, Cell Cycle/Cell Cycle Associated Proteins and Multidrug Resistance Proteins: Targets of Human Amniotic Membrane in Hepatocellular Carcinoma. Pathol Oncol Res 2016; 22:689-97. [PMID: 26965246 DOI: 10.1007/s12253-016-0053-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 03/07/2016] [Indexed: 01/03/2023]
Abstract
The anticancer effects of human amniotic membrane (hAM) have been studied over the last decade. However, the action mechanisms responsible for these effects are not fully understood until now. Previously results reported by our team proved that hAM is able to induce cytotoxicity and cell death in hepatocellular carcinoma (HCC), a worldwide high incident and mortal cancer. Therefore, this experimental study aimed to investigate the cellular targets of hAM protein extracts (hAMPE) in HCC through in vitro studies. Our results showed that hAMPE is able to modify oxidative stress environment in all HCC cell lines, as well as its cell cycle. hAMPE differently targets deoxyribonucleic acid (DNA), P21, P53, β-catenin and multidrug resistance (MDR) proteins in HCC cell lines. In conclusion, hAMPE has several targets in HCC, being clear that the success of this treatment depends of a personalized therapy based on the biological and genetic characteristics of the tumor.
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Affiliation(s)
- A C Mamede
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal. .,CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal. .,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal. .,CNC.IBILI, University of Coimbra, Coimbra, Portugal.
| | - S Guerra
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal
| | - M Laranjo
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
| | - K Santos
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal
| | - M J Carvalho
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal.,Obstetrics Service, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - T Carvalheiro
- Blood and Transplantation Center of Coimbra, Portuguese Institute of the Blood and Transplantation, Coimbra, Portugal
| | - P Moura
- Obstetrics Service, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - A Paiva
- Cytometry Operational Management Unit, Clinical Pathology Department, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - A M Abrantes
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
| | - C J Maia
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - M F Botelho
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
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7
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Brito AF, Ribeiro M, Abrantes AM, Mamede AC, Laranjo M, Casalta-Lopes JE, Gonçalves AC, Sarmento-Ribeiro AB, Tralhão JG, Botelho MF. New Approach for Treatment of Primary Liver Tumors: The Role of Quercetin. Nutr Cancer 2016; 68:250-66. [PMID: 26943884 DOI: 10.1080/01635581.2016.1145245] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Hepatocellular carcinoma (HCC) is the most common primary liver tumor (PLT), with cholangiocarcinoma (CC) being the second most frequent. Glucose transporter 1 (GLUT-1) expression is increased in PLTs and therefore it is suggested as a therapeutic target. Flavonoids, like quercetin, are GLUT-1 competitive inhibitors and may be considered as potential therapeutic agents for PLTs. The objective of this study was evaluation of quercetin anticancer activity in three human HCC cell lines (HepG2, HuH7, and Hep3B2.1-7) and in a human CC cell line (TFK-1). The possible synergistic effect between quercetin and sorafenib, a nonspecific multikinase inhibitor used in clinical practice in patients with advanced HCC, was also evaluated. It was found that in all the cell lines, quercetin induced inhibition of the metabolic activity and cell death by apoptosis, followed by increase in BAX/BCL-2 ratio. Treatment with quercetin caused DNA damage in HepG2, Hep3B2.1-7, and TFK-1 cell lines. The effect of quercetin appears to be independent of P53. Incubation with quercetin induced an increase in GLUT-1 membrane expression and a consequent reduction in the cytoplasmic fraction, observed as a decrease in (18)F-FDG uptake, indicating a GLUT-1 competitive inhibition. The occurrence of synergy when sorafenib and quercetin were added simultaneously to HCC cell lines was noticed. Thus, the use of quercetin seems to be a promising approach for PLTs through GLUT-1 competitive inhibition.
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Affiliation(s)
- Ana Filipa Brito
- a Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal
| | - Marina Ribeiro
- a Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,c Faculty of Sciences and Technology, University of Coimbra , Coimbra , Portugal
| | - Ana Margarida Abrantes
- a Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,d CNC.IBILI, Faculty of Medicine, University of Coimbra , Coimbra , Portugal
| | - Ana Catarina Mamede
- a Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,d CNC.IBILI, Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,e CICS-UBI, Health Sciences Research Centre, University of Beira Interior , Covilhã , Portugal
| | - Mafalda Laranjo
- a Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,d CNC.IBILI, Faculty of Medicine, University of Coimbra , Coimbra , Portugal
| | - João Eduardo Casalta-Lopes
- a Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal
| | - Ana Cristina Gonçalves
- b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,d CNC.IBILI, Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,f Applied Molecular Biology and Hematology Group, Faculty of Medicine, University of Coimbra , Coimbra , Portugal
| | - Ana Bela Sarmento-Ribeiro
- b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,d CNC.IBILI, Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,f Applied Molecular Biology and Hematology Group, Faculty of Medicine, University of Coimbra , Coimbra , Portugal
| | - José Guilherme Tralhão
- a Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,g Surgical Department , Surgery A, CHUC , Coimbra , Portugal
| | - Maria Filomena Botelho
- a Biophysics and Biomathematics Institute, IBILI-Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,b Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra , Coimbra , Portugal.,d CNC.IBILI, Faculty of Medicine, University of Coimbra , Coimbra , Portugal
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8
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Effects of X-radiation on lung cancer cells: the interplay between oxidative stress and P53 levels. Med Oncol 2015; 32:266. [DOI: 10.1007/s12032-015-0712-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 11/03/2015] [Indexed: 01/09/2023]
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9
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Mamede AC, Guerra S, Laranjo M, Carvalho MJ, Oliveira RC, Gonçalves AC, Alves R, Prado Castro L, Sarmento-Ribeiro AB, Moura P, Abrantes AM, Maia CJ, Botelho MF. Selective cytotoxicity and cell death induced by human amniotic membrane in hepatocellular carcinoma. Med Oncol 2015; 32:257. [PMID: 26507652 DOI: 10.1007/s12032-015-0702-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 10/12/2015] [Indexed: 12/20/2022]
Abstract
Hepatocellular carcinoma (HCC) has a worldwide high incidence and mortality. For this reason, it is essential to invest in new therapies for this type of cancer. Our team already proved that human amniotic membrane (hAM) is able to inhibit the metabolic activity of several human cancer cell lines, including HCC cell lines. Taking into account the previously performed work, this experimental study aimed to investigate the pathways by which hAM protein extracts (hAMPEs) act on HCC. Our results showed that hAMPE reduce the metabolic activity, protein content and DNA content in a dose- and time-dependent manner in all HCC cell lines. This therapy presents selective cytotoxicity, since it was not able to inhibit a non-tumorigenic human cell line. In addition, hAMPE induced cell morphology alterations in all HCC cell lines, but death type is cell line dependent, as proved by in vitro and in vivo studies. In conclusion, hAMPE have a promising role in HCC therapy, since it is capable of inducing HCC cytotoxicity and cell death.
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Affiliation(s)
- A C Mamede
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal. .,CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal. .,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal. .,CNC.IBILI, University of Coimbra, Coimbra, Portugal.
| | - S Guerra
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.
| | - M Laranjo
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
| | - M J Carvalho
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal.,Obstetrics Service, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - R C Oliveira
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,Anatomic Pathology Service, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - A C Gonçalves
- CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal.,Applied Molecular Biology and Hematology Group, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - R Alves
- CNC.IBILI, University of Coimbra, Coimbra, Portugal.,Applied Molecular Biology and Hematology Group, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - L Prado Castro
- Anatomic Pathology Service, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - A B Sarmento-Ribeiro
- CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal.,Applied Molecular Biology and Hematology Group, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - P Moura
- Obstetrics Service, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - A M Abrantes
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
| | - C J Maia
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - M F Botelho
- Biophysics Unit, Faculty of Medicine, University of Coimbra, Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,CIMAGO, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,CNC.IBILI, University of Coimbra, Coimbra, Portugal
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10
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Brito AF, Abrantes AM, Ribeiro M, Oliveira R, Casalta-Lopes J, Gonçalves AC, Sarmento-Ribeiro AB, Tralhão JG, Botelho MF. Fluorine-18 Fluorodeoxyglucose Uptake in Hepatocellular Carcinoma: Correlation with Glucose Transporters and p53 Expression. J Clin Exp Hepatol 2015; 5:183-9. [PMID: 26628835 PMCID: PMC4632095 DOI: 10.1016/j.jceh.2015.05.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 05/25/2015] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Hepatocellular Carcinoma (HCC) is one of most lethal cancers worldwide. The prognosis is very poor and therapeutic options are limited. The aim of this study was to determine the correlation of the [(18)F]FDG uptake profile of three HCC cell lines with p53 and glucose transporters (GLUTs) 1, 2, 3, 5 and 12 expression and with the glucose level present in the cell culture medium. METHODS Cell lines used are HepG2 (wp53), HuH7 (overexpress p53) and Hep3B2.1-7 (p53null). An immunocytochemical analysis was performed to evaluate p53 expression. Through uptake studies were analyzed the [(18)F]FDG uptake profiles of all cell lines under study. The expression of GLUTs were quantified by flow cytometry. The [(18)F]FDG uptake studies GLUTs expression analysis were performed on cells that grew in a high and low glucose medium in order to determine the effect of glucose concentration on GLUTs expression and on [(18)F]FDG uptake. RESULTS Immunocytochemical analysis confirmed the p53 expression profiles of all cell lines. It was found out that for all cell lines, [(18)F]FDG uptake is higher when cells grow in low glucose medium, however, the glucose level doesn't affect mostly the GLUTs expression. The Hep3B2.1-7 (p53null) is always the one that have higher [(18)F]FDG uptake. It was found that not always GLUT1 and GLUT3 are the most expressed by these cell lines. CONCLUSIONS Our results shown that the p53 expression influences [(18)F]FDG uptake. This suggests that [(18)F]FDG may be used in HCC diagnosis, and may even provide some information about the genetic profile of the tumor.
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Affiliation(s)
- Ana F. Brito
- Biophysics Unit, Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine of University of Coimbra, Coimbra, Portugal,CNC.IBILI, University of Coimbra, Coimbra, Portugal,Address for correspondence: Ana F. Brito, Biophysics Unit, Faculty of Medicine of University of Coimbra, Pólo III – Pólo das Ciências da Saúde, Azinhaga de Santa Comba, Celas. 3000-548 Coimbra, Portugal. Tel.: +351 239480200; fax: +351 239480217.
| | - Ana M. Abrantes
- Biophysics Unit, Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine of University of Coimbra, Coimbra, Portugal
| | - Marina Ribeiro
- Biophysics Unit, Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Faculty of Sciences and Technology of University of Coimbra, Coimbra, Portugal
| | - Rui Oliveira
- Biophysics Unit, Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Anatomical Pathology Department, CHUC, Coimbra, Portugal
| | - João Casalta-Lopes
- Biophysics Unit, Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine of University of Coimbra, Coimbra, Portugal
| | - Ana C. Gonçalves
- Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine of University of Coimbra, Coimbra, Portugal,CNC.IBILI, University of Coimbra, Coimbra, Portugal,Applied Molecular Biology and Hematology Group, Faculty of Medicine of University of Coimbra, Coimbra, Portugal
| | - Ana B. Sarmento-Ribeiro
- Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine of University of Coimbra, Coimbra, Portugal,CNC.IBILI, University of Coimbra, Coimbra, Portugal,Applied Molecular Biology and Hematology Group, Faculty of Medicine of University of Coimbra, Coimbra, Portugal
| | - José G. Tralhão
- Biophysics Unit, Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Surgical Department A, CHUC, Coimbra, Portugal
| | - Maria F. Botelho
- Biophysics Unit, Faculty of Medicine of University of Coimbra, Coimbra, Portugal,Center of Investigation on Environmental, Genetics and Oncobiology (CIMAGO), Faculty of Medicine of University of Coimbra, Coimbra, Portugal,CNC.IBILI, University of Coimbra, Coimbra, Portugal
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11
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99mTc-amitrole as a novel selective imaging probe for solid tumor: In silico and preclinical pharmacological study. Eur J Pharm Sci 2015; 76:102-9. [DOI: 10.1016/j.ejps.2015.05.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 04/23/2015] [Accepted: 05/03/2015] [Indexed: 11/17/2022]
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12
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Murtinho D, da Rocha ZN, Pires AS, Jiménez RP, Abrantes AM, Laranjo M, Mamede AC, Casalta-Lopes JE, Botelho MF, Pais AACC, Nunes SCC, Burrows HD, Costa T, Silva Serra ME. Synthesis, characterization and assessment of the cytotoxic activity of Cu(II), Fe(III) and Mn(III) complexes of camphoric acid-derived salen ligands. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3309] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Dina Murtinho
- Centro de Química, Department of Chemistry, Faculty of Sciences and Technology; University of Coimbra; P-3004-535 Coimbra Portugal
| | - Zênis N. da Rocha
- Instituto de Química; Universidade Federal da Bahia; Campus de Ondina 40170-290 Salvador, Bahia Brazil
| | - Ana Salomé Pires
- Faculty of Sciences and Technology; University of Coimbra; Coimbra Portugal
- Biophysics Unit, Faculty of Medicine; University of Coimbra; Coimbra Portugal
| | - Roberto P. Jiménez
- Centro de Química, Department of Chemistry, Faculty of Sciences and Technology; University of Coimbra; P-3004-535 Coimbra Portugal
| | - Ana Margarida Abrantes
- Biophysics Unit, Faculty of Medicine; University of Coimbra; Coimbra Portugal
- Centre of Investigation on Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine; University of Coimbra; Coimbra Portugal
| | - Mafalda Laranjo
- Biophysics Unit, Faculty of Medicine; University of Coimbra; Coimbra Portugal
- Centre of Investigation on Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine; University of Coimbra; Coimbra Portugal
| | - Ana Catarina Mamede
- Biophysics Unit, Faculty of Medicine; University of Coimbra; Coimbra Portugal
- Centre of Investigation on Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine; University of Coimbra; Coimbra Portugal
- CICS-UBI, Health Sciences Research Centre; University of Beira Interior; Covilhã Portugal
| | | | - Maria Filomena Botelho
- Biophysics Unit, Faculty of Medicine; University of Coimbra; Coimbra Portugal
- Centre of Investigation on Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine; University of Coimbra; Coimbra Portugal
| | - Alberto A. C. C. Pais
- Centro de Química, Department of Chemistry, Faculty of Sciences and Technology; University of Coimbra; P-3004-535 Coimbra Portugal
| | - Sandra C. C. Nunes
- Centro de Química, Department of Chemistry, Faculty of Sciences and Technology; University of Coimbra; P-3004-535 Coimbra Portugal
| | - Hugh D. Burrows
- Centro de Química, Department of Chemistry, Faculty of Sciences and Technology; University of Coimbra; P-3004-535 Coimbra Portugal
| | - Telma Costa
- Centro de Química, Department of Chemistry, Faculty of Sciences and Technology; University of Coimbra; P-3004-535 Coimbra Portugal
| | - M. Elisa Silva Serra
- Centro de Química, Department of Chemistry, Faculty of Sciences and Technology; University of Coimbra; P-3004-535 Coimbra Portugal
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13
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Alves R, Fonseca AR, Gonçalves AC, Ferreira-Teixeira M, Lima J, Abrantes AM, Alves V, Rodrigues-Santos P, Jorge L, Matoso E, Carreira IM, Botelho MF, Sarmento-Ribeiro AB. Drug transporters play a key role in the complex process of Imatinib resistance in vitro. Leuk Res 2015; 39:355-60. [DOI: 10.1016/j.leukres.2014.12.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 10/29/2014] [Accepted: 12/14/2014] [Indexed: 11/27/2022]
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14
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Metabolic effects of hypoxia in colorectal cancer by 13C NMR isotopomer analysis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:759791. [PMID: 25093181 PMCID: PMC4100400 DOI: 10.1155/2014/759791] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 05/27/2014] [Indexed: 02/08/2023]
Abstract
13C NMR isotopomer analysis was used to characterize intermediary metabolism in three colorectal cancer cell lines (WiDr, LS1034, and C2BBe1) and determine the “metabolic remodeling” that occurs under hypoxia. Under normoxia, the three colorectal cancer cell lines present high rates of lactate production and can be seen as “Warburg” like cancer cells independently of substrate availability, since such profile was dominant at both high and low glucose media contents. The LS1034 was the less glycolytic of the three cell lines and was the most affected by the event of hypoxia, raising abruptly glucose consumption and lactate production. The other two colorectal cell lines, WiDr and C2BBe1, adapted better to hypoxia and were able to maintain their oxidative fluxes even at the very low levels of oxygen. These differential metabolic behaviors of the three colorectal cell lines show how important an adequate knowledge of the “metabolic remodeling” that follows a given cancer treatment is towards the correct (re)design of therapeutic strategies against cancer.
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15
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Sakr TM, Essa BM, El-Essawy FA, El-Mohty AA. Synthesis and biodistribution of 99m Tc-PyDA as a potential marker for tumor hypoxia imaging. RADIOCHEMISTRY 2014. [DOI: 10.1134/s1066362214010159] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Motaleb MA, Nassar MY. Preparation, molecular modeling and biodistribution of 99mTc-phytochlorin complex. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-2920-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Beyond the limits of oxygen: effects of hypoxia in a hormone-independent prostate cancer cell line. ISRN ONCOLOGY 2013; 2013:918207. [PMID: 24167746 PMCID: PMC3791829 DOI: 10.1155/2013/918207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 08/13/2013] [Indexed: 01/03/2023]
Abstract
Prostate cancer (PCa) has a high incidence worldwide. One of the major causes of PCa resistance is intratumoral hypoxia. In solid tumors, hypoxia is strongly associated with malignant progression and resistance to therapy, which is an indicator of poor prognosis. The antiproliferative effect and induced death caused by doxorubicin, epirubicin, cisplatin, and flutamide in a hormone-independent PCa cell line will be evaluated. The hypoxia effect on drug resistance to these drugs, as well as cell proliferation and migration, will be also analyzed. All drugs induced an antiproliferative effect and also cell death in the cell line under study. Hypoxia made the cells more resistant to all drugs. Moreover, our results reveal that long time cell exposure to hypoxia decreases cellular proliferation and migration. Hypoxia can influence cellular resistance, proliferation, and migration. This study shows that hypoxia may be a key factor in the regulation of PCa.
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18
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Sakr TM, El-Safoury DM, Awad GAS, Motaleb MA. Biodistribution of99mTc-sunitinib as a potential radiotracer for tumor hypoxia imaging. J Labelled Comp Radiopharm 2013; 56:392-5. [DOI: 10.1002/jlcr.3060] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 04/15/2013] [Accepted: 04/21/2013] [Indexed: 01/18/2023]
Affiliation(s)
- T. M. Sakr
- Radioactive Isotopes and Generator Department; Hot Labs Center, Atomic Energy Authority; PO Box 13759; Cairo; Egypt
| | - D. M. El-Safoury
- Labeled Compounds Department; Hot Labs Center, Atomic Energy Authority; PO Box 13759; Cairo; Egypt
| | - Gehanne A. S. Awad
- Pharmaceutics and Industrial Pharmacy Department, Faculty of Pharmacy; Ain Shams University; PO Box 11560; Cairo; Egypt
| | - M. A. Motaleb
- Labeled Compounds Department; Hot Labs Center, Atomic Energy Authority; PO Box 13759; Cairo; Egypt
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19
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Laranjo M, Serra AC, Abrantes M, Piñeiro M, Gonçalves AC, Casalta-Lopes J, Carvalho L, Sarmento-Ribeiro AB, Rocha-Gonsalves A, Botelho F. 2-Bromo-5-hydroxyphenylporphyrins for photodynamic therapy: Photosensitization efficiency, subcellular localization and in vivo studies. Photodiagnosis Photodyn Ther 2013; 10:51-61. [DOI: 10.1016/j.pdpdt.2012.05.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 05/18/2012] [Accepted: 05/20/2012] [Indexed: 11/29/2022]
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20
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Mamede AC, Pires AS, Abrantes AM, Tavares SD, Gonçalves AC, Casalta-Lopes JE, Sarmento-Ribeiro AB, Maia JM, Botelho MF. Cytotoxicity of ascorbic acid in a human colorectal adenocarcinoma cell line (WiDr): in vitro and in vivo studies. Nutr Cancer 2012; 64:1049-57. [PMID: 22974001 DOI: 10.1080/01635581.2012.713539] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Vitamin C, available in its reduced form (ascorbic acid; AA) and in its oxidized form (dehydroascorbic acid; DHA), may act in physiological conditions as an antioxidant or pro-oxidant. The aim of this study is to evaluate the cytotoxic effects of pharmacological doses of AA in a human colorectal adenocarcinoma cell line (WiDr) in vitro, through spectrophotometry, clonogenic assays and flow cytometry, and in vivo with xenotransplanted Balb/c nu/nu mice. The results show that the reduced form of vitamin C induces an anti-proliferative and cytotoxic effect in adenocarcinoma colorectal cells under study. The results obtained in vivo after treatment with AA showed a large reduction in the rate of tumor growth. Such understanding can guide decisions about which colorectal cancer patients might potentially benefit from vitamin C pharmacologic therapy.
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Affiliation(s)
- Ana Catarina Mamede
- Biophysics Unit, Institute of Biomedical Research on Light and Image (IBILI), Faculty of Medicine, University of Coimbra, Coimbra, Portugal. ana
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21
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Mirković M, Janković D, Vranješ-Đurić S, Radović M, Stanković D, Mijin D, Nikolić N. Novel tetradentate diamine dioxime ligands: synthesis, characterization and in vivo behavior of their 99mTc-complexes. Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2870] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Marija Mirković
- Vinča Institute of Nuclear Sciences; University of Belgrade; 11001; Belgrade; Serbia
| | - Drina Janković
- Vinča Institute of Nuclear Sciences; University of Belgrade; 11001; Belgrade; Serbia
| | - Sanja Vranješ-Đurić
- Vinča Institute of Nuclear Sciences; University of Belgrade; 11001; Belgrade; Serbia
| | - Magdalena Radović
- Vinča Institute of Nuclear Sciences; University of Belgrade; 11001; Belgrade; Serbia
| | - Dragana Stanković
- Vinča Institute of Nuclear Sciences; University of Belgrade; 11001; Belgrade; Serbia
| | - Dušan Mijin
- Faculty of Technology and Metallurgy; University of Belgrade; 11120; Belgrade; Serbia
| | - Nadežda Nikolić
- Vinča Institute of Nuclear Sciences; University of Belgrade; 11001; Belgrade; Serbia
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22
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Serra AC, Rocha Gonsalves AMD, Laranjo M, Abrantes AM, Gonçalves AC, Sarmento-Ribeiro AB, Botelho MF. Synthesis of new 2-galactosylthiazolidine-4-carboxylic acid amides. Antitumor evaluation against melanoma and breast cancer cells. Eur J Med Chem 2012; 53:398-402. [PMID: 22560315 DOI: 10.1016/j.ejmech.2012.04.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 04/02/2012] [Accepted: 04/04/2012] [Indexed: 10/28/2022]
Abstract
A set of 2-galactosylthiazolidine-4-carboxylic acid amides was synthesized with different length for the carbon chain amide moiety. The cytotoxicity of the molecules was evaluated against A375 melanoma and MCF7 breast cancer cell lines. For the derivatives tested, the one that contains a C(16) amide carbon chain is the most active with an IC(50) of 17.0 μM for A375 and 5.8 μM for MCF7. This compound also shows cytotoxicity in the triple negative cancer cell line HCC1806. The selectivity of the compounds was assessed by comparing the cytotoxicity in cancer cell line versus in a fibroblast cell line. Flow cytometry studies show the activation of apoptotic pathways and also DNA damages with blockage of the cell cycle in the S-phase and appearance of peaks in G0/G1-phase.
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Affiliation(s)
- Arménio C Serra
- Departamento de Química, Universidade de Coimbra, Rua Larga, 3004 535 Coimbra, Portugal.
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23
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Kimura S, Umeda IO, Moriyama N, Fujii H. Synthesis and evaluation of a novel (99m)Tc-labeled bioreductive probe for tumor hypoxia imaging. Bioorg Med Chem Lett 2011; 21:7359-62. [PMID: 22078213 DOI: 10.1016/j.bmcl.2011.10.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 10/03/2011] [Accepted: 10/07/2011] [Indexed: 11/24/2022]
Abstract
Tumor hypoxia is closely associated with the malignant progression and/or the high metastatic ability of tumors and often induces resistance to chemo- and/or radiotherapy. Thus, the detection and evaluation of hypoxia is important for the optimization of cancer therapy. We designed a novel (99m)Tc-labeled probe for tumor hypoxia imaging that utilizes bioreductive reactions in hypoxic cells. This probe, which contains a 4-nitrobenzyl ester group, is reduced in hypoxic cells to produce a corresponding carboxylate anion that cannot penetrate cell membranes because of its hydrophilicity and negative charge; therefore, it is expected to be trapped inside hypoxic cells. Based on this unique strategy, we synthesized the Technetium-99m ((99m)Tc)-labeled probe (99m)Tc-SD32. The uptake of (99m)Tc-SD32 in tumor cells was investigated under normoxic and hypoxic conditions. (99m)Tc-SD32 showed sufficient accumulation and good retention in hypoxic cells. In addition, we demonstrated that (99m)Tc-SD32 was subjected to bioreduction in hypoxic cells and was trapped as the corresponding carboxylate anion. These results indicated that (99m)Tc-SD32 would be a promising agent for in vivo hypoxia imaging.
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Affiliation(s)
- Sadaaki Kimura
- Functional Imaging Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba 277-8577, Japan
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24
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Casalta-Lopes J, Abrantes AM, Laranjo M, Rio J, Gonçalves AC, Oliveiros B, Sarmento-Ribeiro AB, Botelho MF. Efflux Pumps Modulation in Colorectal Adenocarcinoma Cell Lines: The Role of Nuclear Medicine. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/jct.2011.23056] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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