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Barbezan AB, Rosero WAA, Vieira DP, Rigo MEZ, da Silva GD, Rodrigues AA, de Almeida LF, da Silva FFA, Rivera AG, da Silva NG, Bernardes ES, Zeituni CA, Rostelato MECM. Radioactive gold nanoparticles coated with BSA: A promising approach for prostate cancer treatment. Nanotheranostics 2024; 8:112-126. [PMID: 38164500 PMCID: PMC10750119 DOI: 10.7150/ntno.91507] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024] Open
Abstract
Background: Nanotechnology has revolutionized medicine, especially in oncological treatments. Gold nanoparticles (AuNPs) stand out as an innovative alternative due to their biocompatibility, potential for surface modification, and effectiveness in radiotherapeutic techniques. Given that prostate cancer ranks as one of the leading malignancies among men, there's a pressing need to investigate new therapeutic approaches. Methods: AuNPs coated with bovine serum albumin (BSA) were synthesized and their cytotoxicity was assessed against prostate tumor cell lines (LNCaP and PC-3), healthy prostate cells (RWPE-1), and endothelial control cells (HUVEC) using the MTS/PMS assay. For in vivo studies, BALB/C Nude mice were employed to gauge the therapeutic efficacy, biodistribution, and hematological implications post-treatment with BSA-coated AuNPs. Results: The BSA-coated AuNPs exhibited cytotoxic potential against PC-3 and LNCaP lines, while interactions with RWPE-1 and HUVEC remain subjects for further scrutiny. Within animal models, a diverse therapeutic response was observed, with certain instances indicating complete tumor regression. Biodistribution data emphasized the nanoparticles' affinity towards particular organs, and the majority of hematological indicators aligned with normative standards. Conclusions: BSA-coated AuNPs manifest substantial promise as therapeutic tools in treating prostate cancer. The present research not only accentuates the nanoparticles' efficacy but also stresses the imperative of optimization to ascertain both selectivity and safety. Such findings illuminate a promising trajectory for avant-garde therapeutic modalities, holding substantial implications for public health advancements.
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Affiliation(s)
- Angélica Bueno Barbezan
- IPEN /CETER (Instituto de Pesquisas Energéticas e Nucleares / Centro de Tecnologia das Radiações), Brazil
| | | | - Daniel Perez Vieira
- IPEN / CBIO (Instituto de Pesquisas Energéticas e Nucleares / Centro de Biotecnologia), Brazil
| | - Maria Eduarda Zaganin Rigo
- IPEN /CETER (Instituto de Pesquisas Energéticas e Nucleares / Centro de Tecnologia das Radiações), Brazil
| | - Giovana Dias da Silva
- IPEN / CBIO (Instituto de Pesquisas Energéticas e Nucleares / Centro de Biotecnologia), Brazil
| | - Alex Alves Rodrigues
- IPEN / CBIO (Instituto de Pesquisas Energéticas e Nucleares / Centro de Biotecnologia), Brazil
| | - Luís Fernando de Almeida
- IPEN /CETER (Instituto de Pesquisas Energéticas e Nucleares / Centro de Tecnologia das Radiações), Brazil
| | | | - Andy González Rivera
- IPEN /CECRF (Instituto de Pesquisas Energéticas e Nucleares / Centro de Radiofármacia), Brazil
| | - Natanael Gomes da Silva
- IPEN /CECRF (Instituto de Pesquisas Energéticas e Nucleares / Centro de Radiofármacia), Brazil
| | - Emerson S. Bernardes
- IPEN /CECRF (Instituto de Pesquisas Energéticas e Nucleares / Centro de Radiofármacia), Brazil
| | - Carlos Alberto Zeituni
- IPEN /CETER (Instituto de Pesquisas Energéticas e Nucleares / Centro de Tecnologia das Radiações), Brazil
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Gonzaga VF, Wenceslau CV, Vieira DP, Policiquio BDO, Khalil C, Araldi RP, Kerkis I. Therapeutic Potential of Human Immature Dental Pulp Stem Cells Observed in Mouse Model for Acquired Aplastic Anemia. Cells 2022; 11:cells11142252. [PMID: 35883695 PMCID: PMC9315564 DOI: 10.3390/cells11142252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/10/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022] Open
Abstract
Aplastic anemia (AA) is a rare and serious disorder of hematopoietic stem cells (HSCs) that results in the loss of blood cells due to the failure of the bone marrow (BM). Although BM transplantation is used to treat AA, its use is limited by donor availability. In this sense, mesenchymal stem cells (MSCs) can offer a novel therapeutic approach for AA. This is because the MSCs contribute to the hematopoietic niche organization through their repopulating. In our study, we used the human immature dental pulp stem cell (hIDPSC), an MSC-like cell, to explore an alternative therapeutic approach for AA. For this, isogenic C57BL/6 mice were exposed to total body irradiation (TBI) to induce the AA. After 48 h of TBI, the mice were intraperitoneally treated with hIDPSC. The immunohistochemistry analyses confirmed that the hIDPSCs migrated and grafted in the mouse bone marrow (BM) and spleen, providing rapid support to hematopoiesis recovery compared to the group exposed to radiation, but not to those treated with the cells as well as the hematological parameters. Six months after the last hIDPSC transplantation, the BM showed long-term stable hematopoiesis. Our data highlight the therapeutic plasticity and hematoprotective role of hIDPSC for AA and potentially for other hematopoietic failures.
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Affiliation(s)
- Vivian Fonseca Gonzaga
- Genetics Laboratory, Instituto Butantan, São Paulo 05503-900, Brazil; (V.F.G.); (B.d.O.P.); (R.P.A.)
- Cellavita Pesquisas Científicas Ltda., Valinhos 13271-650, Brazil;
| | | | | | - Bruna de Oliveira Policiquio
- Genetics Laboratory, Instituto Butantan, São Paulo 05503-900, Brazil; (V.F.G.); (B.d.O.P.); (R.P.A.)
- Cellavita Pesquisas Científicas Ltda., Valinhos 13271-650, Brazil;
| | - Charbel Khalil
- Reviva Stem Cell Platform for Research and Applications Center, Bsalim 17-5208, Lebanon;
- Faculty of Pharmacy, Saint Joseph University, Beirut 17-5208, Lebanon
| | - Rodrigo Pinheiro Araldi
- Genetics Laboratory, Instituto Butantan, São Paulo 05503-900, Brazil; (V.F.G.); (B.d.O.P.); (R.P.A.)
- Cellavita Pesquisas Científicas Ltda., Valinhos 13271-650, Brazil;
| | - Irina Kerkis
- Genetics Laboratory, Instituto Butantan, São Paulo 05503-900, Brazil; (V.F.G.); (B.d.O.P.); (R.P.A.)
- Correspondence:
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Gonçalves Correa ND, Silva FD, Vieira DP, Soares CRJ, de Queiroz AAA. In vitro cytotoxic data on Se-methylselenocysteine conjugated to dendritic poly(glycerol) against human squamous carcinoma cells. J Biomater Sci Polym Ed 2022; 33:651-667. [PMID: 34809530 DOI: 10.1080/09205063.2021.2008788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Polymeric nanoparticles acting as sources of selenium (Se) are currently an interesting topic in cancer chemotherapy. In this study, polyglycerol dendrimer (DPGLy) was functionalized with seleno-methyl-selenocysteine (SeMeCys) by means of Steglich esterification with 4-dimethylaminopyridine/(l-ethyl-3-(3-dimethylaminopropyl)carbodiimide) (EDC/DMAP) and cerium chloride as cocatalyst in acetonitrile at quantitative yields of 98 ± 1%. The SeMeCys coupling DPGLy efficiency vs. time were determined by Fourier Transform infrared spectroscopy (FTIR) and ultraviolet-visible (UV-Vis) spectroscopy. The cytotoxic effects of SeMeCys-DPGLy on the Chinese Hamster ovary cell line (CHO-K1) and head and neck squamous cell carcinoma (HNSCC) cells line were assessed by MTS (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium) assay. No signs of general toxicity of SeMeCys-DPGLy against CHO-K1 cells were detectable at which cell viability was greater than 98%. MTS assays revealed that SeMeCys-DPGLy reduced HNSCC cell viability and proliferation at higher doses and long incubation times.
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Wieczorek Villas Boas CA, de Jesus Silva J, Pereira Dias LA, Brandão Freire MR, Balieiro LM, Ferreira Dos Santos CS, Vivaldini BF, Benedetto R, Vieira DP, de Queiroz Souza Passos P, Marumo MH, Teixeira LFS, Bortoleti de Araújo E. In vitro and in vivo response of PSMA-617 radiolabeled with CA and NCA lutetium-177. Appl Radiat Isot 2021; 180:110064. [PMID: 34923290 DOI: 10.1016/j.apradiso.2021.110064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 12/09/2021] [Accepted: 12/09/2021] [Indexed: 11/02/2022]
Abstract
The PSMA-targeted radionuclide therapy has been explored since 2015 with radioisotope lutetium-177, whose β- emission range is adequate for micrometastases treatment. This radioisotope is obtained by two different production routes that directly affect the specific activity of lutetium-177 (non-carrier added and carrier added) and, consequently, the specific activity of radiopharmaceuticals, like 177Lu-PSMA-617. The influence of the specific activity of lutetium-177 on the properties of the radiopharmaceutical PSMA-617 was evaluated through pre-clinical studies. The in vitro study pointed to a lower constant of dissociation with non-carrier added lutetium-177 due to the difference in the specific activity. However, competition and internalization assays resulted in similar results for both lutetium-177. Based on these pre-clinical experiments, the total in vitro tumor cell binding and tumor uptake in vivo were similar, with no influence of the specific activity of the 177Lu-PSMA-617. Regardless the specific activity did not directly affect tumor uptake, the tumor/non-target organs ratios were higher for the radiopharmaceutical labeled with carrier added lutetium-177, which had the lowest specific activity.
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Affiliation(s)
- Cristian Antonio Wieczorek Villas Boas
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil; Department of Radiation Oncology, Washington University School of Medicine, 4511 Forest Park Ave, St Louis, MO, 63110, USA.
| | - Jefferson de Jesus Silva
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Luís Alberto Pereira Dias
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Maria Renata Brandão Freire
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Luiza Mascarenhas Balieiro
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Carolina Silva Ferreira Dos Santos
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Bianca Franchesqueti Vivaldini
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Raquel Benedetto
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Daniel Perez Vieira
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Priscila de Queiroz Souza Passos
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Maria Helena Marumo
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Luis Felipe S Teixeira
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
| | - Elaine Bortoleti de Araújo
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Av Prof. Lineu Prestes, 2242 - Cidade Universitária, São Paulo, CEP 05508-000, Brazil
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de Carvalho LR, Vieira DP. Evaluation of genotoxic potential of peptides used in nuclear medicine (PSMA -617 and -11, and ubiquicidine 29-41) using a flow-cytometric, semi-automated analysis of micronuclei frequency in cell cultures. Toxicol Rep 2020; 7:304-316. [PMID: 32071884 PMCID: PMC7016341 DOI: 10.1016/j.toxrep.2020.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/29/2020] [Accepted: 02/06/2020] [Indexed: 11/17/2022] Open
Abstract
PSMA-617 induced genotoxicity in vitro only in a non-feasible concentration. PSMA-11 or Ubiquicidine 29–41 did not induced genotoxicity. Corroboration of the pharmacological safety of these peptides using fast technique.
Assays that rely on the assessment of frequency of micronuclei are important standard techniques currently used to quantify potential genotoxic damage after exposure to chemical or physical agents, such as ionizing radiation, or in pre-clinical studies, to assessment of the genotoxic potential of drugs or its components. The experiments are usually performed using conventional microscopy, but currently the protocols are being upgraded to automated approaches based on flow cytometry protocols based on the elimination of the plasma membrane by chemical agents, allowing quantification by flow cytometry. In this work, the genotoxic potential of peptides used as components of radiopharmaceuticals (PSMA-617 and 11 and Ubiquicidine) was evaluated exposing CHO-KI cells to a wide range of concentration (0.1X and 100X the maximum allowed concentration to human adults). Incubation with PSMA-11 or UBI29–41 did not induce genotoxicity. After 24 h of incubation, PSMA-617 induced genotoxicity only in non-practical concentration (100-fold). Results corroborate the safety of the pre-drugs and the wide detection range of technique.
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Affiliation(s)
- L R de Carvalho
- Laboratório de Radiobiologia, Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, Av. Lineu Prestes 2242, São Paulo, São Paulo, Brazil
| | - D P Vieira
- Laboratório de Radiobiologia, Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, Av. Lineu Prestes 2242, São Paulo, São Paulo, Brazil
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Courrol LC, de Oliveira Gonçalves K, Vieira DP. Emerging Role of Aminolevulinic Acid and Gold Nanoparticles Combination in Theranostic Applications. Nanotheranostics 2019. [DOI: 10.1007/978-3-030-29768-8_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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7
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Gonçalvez KDO, Vieira DP, Courrol LC. Study of THP-1 Macrophage Viability after Sonodynamic Therapy Using Methyl Ester of 5-Aminolevulinic Acid Gold Nanoparticles. Ultrasound Med Biol 2018; 44:2009-2017. [PMID: 29936026 DOI: 10.1016/j.ultrasmedbio.2018.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 05/03/2018] [Accepted: 05/11/2018] [Indexed: 06/08/2023]
Abstract
Sonodynamic therapy (SDT) is emerging as new atherosclerosis treatment. The use of gold nanoparticles (AuNPs) as the vehicle for a sensitizer delivery improves reactive oxygen species formation. In this study, methyl ester of aminolevulinic acid (MALA) gold nanoparticles (MALA:AuNPs) functionalized with polyethylene glycol (PEG) were synthesized by photoreduction and characterized by ultraviolet/visible optical absorption, zeta potential and electron microscopy. The reactive oxygen species generation induced by ultrasound irradiation of MALA:AuNPs solutions was studied by observing the decrease in the 1,3-diphenylisobenzofuran emission band. The potential use of MALA:AuNPs as sensitizer for sonodynamic therapy was investigated on THP-1 macrophages. The cytotoxicity test was also described. The findings suggested that ultrasound combined with MALA:AuNPs provides impressive results in in vitro studies. Sonodynamic therapy with MALA:AuNPs through 2 minutes of ultrasound exposure (1 MHz and 1 W/cm2) culminated with total macrophage reduction. Thus, sonodynamic therapy combined with MALA:AuNPs has potential as a treatment for atherosclerosis.
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Affiliation(s)
- Karina de Oliveira Gonçalvez
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Departamento de Física, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil
| | - Daniel Perez Vieira
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, São Paulo, São Paulo, Brazil
| | - Lilia Coronato Courrol
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Departamento de Física, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil.
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Cecchi CR, Higuti E, Lima ER, Vieira DP, Squair PL, Peroni CN, Bartolini P. Efficient Non-Invasive Plasmid-DNA Administration into Tibialis Cranialis Muscle of "Little" Mice. Curr Mol Med 2018; 17:230-235. [PMID: 28730965 DOI: 10.2174/1566524017666170721152119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 03/09/2017] [Revised: 07/14/2017] [Accepted: 07/18/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND An alternative treatment for growth hormone deficiency based on hGH-DNA administration, followed by electro gene transfer, was investigated by injecting the plasmid into surgically exposed or non-exposed quadriceps or tibialis muscle of immunodeficient "little" mice. METHODS An optimization of electrotransfer conditions via a new combination of high/low voltage pulses is presented. After 3 days, serum hGH was determined and in a 28-day assay, the relative growth parameters were compared. RESULTS Both groups exhibited similar results: 5.0 ± 2.2 (SD) and 3.5 ± 0.9 ng hGH/ml (P>0.05; n=7) for the exposed quadriceps and non-exposed tibialis treatments, respectively. The final body weight increases were 16.1% for the quadriceps and 18.9% for the tibialis group. The tail and nose-to-tail length increases were 4.5% and 7.1% for the quadriceps and 4.8 and 4.6% for the tibialis group. The right and left femur length increases, obtained from radiographic measurements, were 16.9% and 12.7% for the quadriceps and 19.4% and 12.3% for the tibialis, respectively. A non-significant difference between exposed quadriceps and non-exposed tibialis treatments (P=0.48) was confirmed via a completely integrated statistical analysis. Circulating mIGF-1 levels were 126 ± 47, 106 ± 93 (P>0.05) and 38 ± 15 ng/ml for the quadriceps, tibialis and saline treatments, respectively. CONCLUSION These results show that hGH-DNA administration into non-exposed tibialis muscle followed by the new HV/LV electrotransfer protocol was an equally efficient, less traumatic treatment, much more suitable for pre-clinical testing than administration into exposed quadriceps.
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Affiliation(s)
- C R Cecchi
- Biotechnology Center, Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN), Av. Prof. Lineu Prestes 2242, 05508-000, Sao Paulo, SP. Brazil
| | - E Higuti
- Biotechnology Center, Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN), Cidade Universitaria, Sao Paulo, SP. Brazil
| | - E R Lima
- Biotechnology Center, Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN), Cidade Universitaria, Sao Paulo, SP. Brazil
| | - D P Vieira
- Biotechnology Center, Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN), Cidade Universitaria, Sao Paulo, SP. Brazil
| | - P L Squair
- Radiopharmacy Center, Instituto de Pesquisas/ Energeticas e Nucleares (IPENCNEN), Cidade Universitaria, Sao Paulo, SP. Brazil
| | - C N Peroni
- Biotechnology Center, Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN), Cidade Universitaria, Sao Paulo, SP. Brazil
| | - P Bartolini
- Biotechnology Center, Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN), Cidade Universitaria, Sao Paulo, SP. Brazil
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Valgôde FGS, da Silva MA, Vieira DP, Ribela MTCP, Bartolini P, Okazaki K. Cytotoxic and genotoxic effects of 131 I and 60 Co in follicular thyroid cancer cell (WRO) with and without recombinant human thyroid-stimulating hormone treatment. Environ Mol Mutagen 2017; 58:451-461. [PMID: 28561379 DOI: 10.1002/em.22099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/22/2017] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
Normally, differentiated thyroid cancer (DTC) tends to be biologically indolent, highly curable and has an excellent prognosis. However, the treatment may fail when the cancer has lost radioiodine avidity. The present study was carried out in order to evaluate the cytotoxic and genotoxic effects of 131 I and 60 Co and radioiodine uptake in WRO cells, derived from DTC, harboring the BRAFV600E mutation. WRO cells showed a relatively slow cell cycle of 96.3 h with an unstable karyotype containing various double minutes. The genotoxicity assay (micronucleus test) showed a relative high radioresistance to 131 I (0.07-3.70 MBq/mL), independent of treatment with recombinant human thyroid-stimulating hormone (rhTSH). For the cytotoxicity assay, WRO cells were also relatively resistant to 60 Co (range: 0.2-8.3 Gy), but with a gradual decrease of viability as a function of time for higher doses (20 and 40 Gy, starting from the fifth to sixth day). For internal irradiation with 131 I, WRO cells showed a decline in viability at radioactive concentration higher than 1.85 MBq/mL; this was even more effective at 3.70 MBq/mL, but only when preceded by rhTSH, in coincidence with the highest level of 131 I uptake. These data show promising results, since the loss of the ability of thyroid cells to concentrate radioiodine is considered to be one of the main factors responsible for the failure of 131 I therapy in patients with DTC. The use of tumor-derived cell lines as a model for in vivo tumor requires, however, further investigations and deep evaluation of the corresponding in vivo effects. Environ. Mol. Mutagen. 58:451-461, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Flávia Gomes Silva Valgôde
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, CEP 05508-900, Caixa Postal 11049, Cidade Universitária, São Paulo, Brazil
| | - Márcia Augusta da Silva
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, CEP 05508-900, Caixa Postal 11049, Cidade Universitária, São Paulo, Brazil
| | - Daniel Perez Vieira
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, CEP 05508-900, Caixa Postal 11049, Cidade Universitária, São Paulo, Brazil
| | - Maria Teresa Carvalho Pinto Ribela
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, CEP 05508-900, Caixa Postal 11049, Cidade Universitária, São Paulo, Brazil
| | - Paolo Bartolini
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, CEP 05508-900, Caixa Postal 11049, Cidade Universitária, São Paulo, Brazil
| | - Kayo Okazaki
- Centro de Biotecnologia, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, CEP 05508-900, Caixa Postal 11049, Cidade Universitária, São Paulo, Brazil
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Ocampo IZ, de Queiroz Souza Passos P, Ramirez de Carvalho L, Lira da Cruz CA, Esteves-Pedro NM, Medeiros da Silva F, Higa OZ, Dias LAP, Okazaki K, Vieira DP. In vitro cytotoxic and genotoxic evaluation of peptides used in nuclear medicine (DOTATATE and Ubiquicidin 29-41) in CHO-K1 cells. Cytotechnology 2016; 68:2301-2310. [PMID: 27686814 DOI: 10.1007/s10616-016-0024-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 03/15/2016] [Accepted: 08/24/2016] [Indexed: 12/27/2022] Open
Abstract
Micronucleus (MN) assay constitutes a valuable surrogate to the chromosome aberration technique for in vitro testing of the genotoxicity of substances. As test substances, two peptidic compounds (DOTATATE and Ubiquicidin29-41) used in nuclear medicine, were tested for in vitro cytotoxicity and genotoxicity in CHO-K1 cells. None of the compounds showed detectable cytotoxicity (0.5-7.3 ng/mL for DOTATATE and 0.3-4.5 ng/mL for UBI29-41), genotoxicity (0.72, 7.2 and 72.0 ng/ml for DOTATATE and 0.45, 4.5 and 45.0 ng/mL for UBI29-41) or cell cycle changes as compared to untreated controls at the concentrations tested. Statistical analysis showed good concordance between two independent analysts. The results corroborate the notion of the safety of the compounds and present improvements of the in vitro MN assay when performed in a pre-clinical trial context that increase the throughput of small-to-medium testing facilities as an alternative to high content screening systems.
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Affiliation(s)
- Ivette Zegarra Ocampo
- Laboratory of Radiobiology, Center of Biotechnology, Institute of Nuclear and Energetic Research IPEN/CNEN-SP, Av. LineuPrestes, 2242, São Paulo, SP, 05508-000, Brazil
| | | | - Luma Ramirez de Carvalho
- Laboratory of Radiobiology, Center of Biotechnology, Institute of Nuclear and Energetic Research IPEN/CNEN-SP, Av. LineuPrestes, 2242, São Paulo, SP, 05508-000, Brazil
| | - Camila Ayala Lira da Cruz
- Laboratory of Radiobiology, Center of Biotechnology, Institute of Nuclear and Energetic Research IPEN/CNEN-SP, Av. LineuPrestes, 2242, São Paulo, SP, 05508-000, Brazil
| | | | | | - Olga Zazuco Higa
- Laboratory of Radiobiology, Center of Biotechnology, Institute of Nuclear and Energetic Research IPEN/CNEN-SP, Av. LineuPrestes, 2242, São Paulo, SP, 05508-000, Brazil.,Biosynthesis Laboratory, São Paulo, SP, Brazil
| | - Luiz Alberto Pereira Dias
- Center of Radiopharmacy, Quality Control Management, Institute of Nuclear and Energetic Research IPEN/CNEN-SP, São Paulo, SP, Brazil
| | - Kayo Okazaki
- Laboratory of Radiobiology, Center of Biotechnology, Institute of Nuclear and Energetic Research IPEN/CNEN-SP, Av. LineuPrestes, 2242, São Paulo, SP, 05508-000, Brazil
| | - Daniel Perez Vieira
- Laboratory of Radiobiology, Center of Biotechnology, Institute of Nuclear and Energetic Research IPEN/CNEN-SP, Av. LineuPrestes, 2242, São Paulo, SP, 05508-000, Brazil.
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Santos GS, Tsutsumi S, Vieira DP, Bartolini P, Okazaki K. Effect of Brazilian propolis (AF-08) on genotoxicity, cytotoxicity and clonogenic death of Chinese hamster ovary (CHO-K1) cells irradiated with 60Co gamma-radiation. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2014; 762:17-23. [DOI: 10.1016/j.mrgentox.2013.11.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 08/26/2013] [Accepted: 11/02/2013] [Indexed: 01/12/2023]
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