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Selzler M, de Almeida AM, Neves MB, Gonçalves ADF, Aydos RD, Ramalho RT. Use of nanoparticles in animal models for prostate cancer treatment: a systematic review. Acta Cir Bras 2023; 38:e385923. [PMID: 37909596 PMCID: PMC10637342 DOI: 10.1590/acb385923] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/11/2023] [Indexed: 11/03/2023] Open
Abstract
PURPOSE To conduct a systematic review of nanoparticles' use in the treatment of prostate cancer in animals. METHODS A systematic review was conducted in the databases PubMed, Scientific Electronic Library Online (SciELO), Latin American and Caribbean Health Sciences Literature (LILACS), Cochrane Library, and EMBASE, and the descriptors were chosen based on terms indexed in Health Sciences Descriptors (DeCS)/Medical Subject Headings (MESH), which are: nanoparticles, nanomedicine, and prostate cancer. The systematic review protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO) with ID CRD42021271008. RESULTS A total of 3,897 articles was chosen; after reading the inclusion and exclusion criteria, six scientific articles with themes involving nanoparticles carrying medications were reached. Among the nanoparticles found, there were carboxymethylcellulose polymer, micellar casein nanoparticles, liquid crystal nanoparticles, serum albumin nanoparticles, and poly(ethylene glycol)-block-polylactide (mPEG-PLA) conjugated nanoparticles encapsulating cabazitaxel, docetaxel, and flutamide, which were nanoparticles used to treat prostate cancer in animals. CONCLUSIONS Through using nanoparticles to encapsulate medications for treating prostate cancer in animals, studies show a decrease in weight and tumor reduction, with nanoparticles resulting in greater survival time than free medications. The improved permeability and retention effect of nanoparticles in the bloodstream contribute to their effectiveness.
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Affiliation(s)
- Michele Selzler
- Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Alexandre Moreira de Almeida
- Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Marcelo Barbosa Neves
- Universidade Federal do Rio de Janeiro – Postgraduate Program in Biological Sciences – Rio de Janeiro (RJ), Brazil
| | - Alessandra de Figueiredo Gonçalves
- Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Ricardo Dutra Aydos
- Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Rondon Tosta Ramalho
- Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
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Neves MB, da Silva UN, Gonçalves ADF, Fagundes LS, de Abreu AC, Takita LC, Aydos RD, Ramalho RT. The effect of aerobic and resistance exercise on the progression of colorectal cancer in an animal model. Acta Cir Bras 2023; 38:e384923. [PMID: 37878986 PMCID: PMC10592869 DOI: 10.1590/acb384923] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/12/2023] [Indexed: 10/27/2023] Open
Abstract
PURPOSE The aim of this study was to assess the effects of resistance and aerobic exercise on colorectal cancer (CRC) development in mice induced by azoxymethane (AOM) coupled with colitis. METHODS Forty animals induced with CRC were used, divided into five groups of eight animals each: sedentary; continuous aerobics; continuous anaerobic; aerobic PI; and anaerobic PI. AOM was administered to the animals in two doses of 10 mg/kg each over the course of two weeks, the first dose administered in the third week and the second administered in the fourth. For the colitis, three cycles of dextran sodium sulfate were administered for five days, separated by two weeks of water. The 14th week of the experiment saw the euthanasia, the removal of their colons, and the creation of microscopy slides for histological analysis. RESULTS Preneoplastic lesions developed in all five groups; there were no significant differences between them. However, in terms of inflammatory symptoms, mucosal ulceration was much more frequently in the exercise groups than in the sedentary group (p = 0.016). The number of polyps overall (p = 0.002), the distal region's polyp development (p = 0.003), and the proximal region's polyp development (p = 0.04) were all statistically different than sedentary group. CONCLUSIONS The study discovered no significant difference in disease activity index scores between groups, but there was a significant difference in the number of polyps and the presence of mucosal ulceration in the colon.
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Affiliation(s)
- Marcelo Barbosa Neves
- Universidade Federal do Rio de Janeiro – Postgraduate Program in Biological Sciences – Rio de Janeiro (RJ) – Brazil
| | - Udenilson Nunes da Silva
- Universidade Federal do Mato Grosso do Sul – Health and Development Postgraduate Program – Campo Grande (MS) – Brazil
| | | | - Letícia Silva Fagundes
- Universidade Federal do Mato Grosso do Sul – Health and Development in the Midwest Region – Campo Grande (MS) – Brazil
| | - Antônio Carlos de Abreu
- Universidade Federal do Mato Grosso do Sul – Health and Development in the Midwest Region – Campo Grande (MS) – Brazil
| | - Luiz Carlos Takita
- Universidade Federal do Mato Grosso do Sul – Medical School – Campo Grande (MS) – Brazil
| | - Ricardo Dutra Aydos
- Universidade Federal do Mato Grosso do Sul – Health and Development in the Midwest Region – Campo Grande (MS) – Brazil
| | - Rondon Tosta Ramalho
- Universidade Federal do Mato Grosso do Sul – Health and Development in the Midwest Region – Campo Grande (MS) – Brazil
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da Silva UN, Boutrik A, Gonçalves ADF, Neves MB, Alves GR, Fagundes LS, de Abreu AC, Aydos RD, Ramalho RT. Assessment of stress and anxiety in mice with colorectal cancer submitted to physical exercise. Acta Cir Bras 2022; 37:e370508. [PMID: 35976343 PMCID: PMC9377203 DOI: 10.1590/acb370508] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/21/2022] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To evaluate the effect of physical exercise on the behavior of rodents with colorectal cancer induced through the use of elevated plus maze. METHODS We used 40 male hairless mice induced to colorectal cancer, divided into five groups: G1) submitted to pre- and post-induction swimming; G2) pre- and post-induction ladder; G3) post-induction swimming; G4) post-induction ladder; G5) sedentary. At the end of the 14th week, the animals were submitted to the plus maze test. RESULTS The mean length of stay in the open arm for G1 was 4.17 ± 6.50; G2 37.52 ± 40.7; G3 85.84 ± 42.5; G4 32.92 ± 23.17; and G5 4.09 ± 4.43. In the closed arm, it was 264 ± 23.43 in G1, 187.60 ± 47.73 in G2, 147.50 ± 40.03 in G3, 182.00 ± 40.40 in G4, and in G5 235.36 ± 14.28. In the center, G1 remained 31.86 ± 20.18, G2 74.85 ± 28.37, G3 66.69 ± 19.53, G4 60.55 ± 10.46, and G5 60.55 ± 23.65. CONCLUSIONS Aerobic exercise for seven weeks after tumor induction showed less impact on the behavior of the animals. On the other hand, it significantly increased the animals' stress level when applied for 14 weeks before and after tumor induction.
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Affiliation(s)
- Udenilson Nunes da Silva
- Graduate Student. Universidade Federal do Mato Grosso do Sul – Faculty of Medicine – Campo Grande (MS), Brazil
| | - Amanda Boutrik
- Graduate Student. Universidade Federal do Mato Grosso do Sul – Faculty of Medicine – Campo Grande (MS), Brazil
| | - Alessandra de Figueiredo Gonçalves
- Fellow master degree. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Marcelo Barbosa Neves
- Fellow PhD degree. Universidade Federal do Rio de Janeiro – Postgraduate Program in Biological Sciences (Physiology) – Rio de Janeiro (RJ), Brazil
| | - Gabriela Rodrigues Alves
- Fellow PhD degree. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Letícia Silva Fagundes
- Fellow PhD degree. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Antônio Carlos de Abreu
- Fellow PhD degree. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Ricardo Dutra Aydos
- Full professor. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil
| | - Rondon Tosta Ramalho
- Full professor. Universidade Federal do Mato Grosso do Sul – Postgraduate Program in Health and Development in the Midwest Region – Campo Grande (MS), Brazil.,Corresponding author:
- (55 67) 981118597
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dos Santos AT, Silva IS, Ivo ML, Rodrigues CT, Parisotto EB, Ramalho RT, Monteiro GM. Effects of oxidative stress on liver, brain and spinal cord of rats using L-NAME and treated with hydroxyurea. A model of sickle cell complication. Acta Cir Bras 2020; 35:e202000301. [PMID: 32401830 PMCID: PMC7217595 DOI: 10.1590/s0102-865020200030000001] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 01/13/2020] [Accepted: 02/10/2020] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To analyze the serum levels of nitric oxide and correlate them with the levels of thiobarbituric acid reactive substances (TBARS) in liver, brain and spinal cord of animals using L-NAME and treated with hydroxyurea. METHODS Eighteen male albino Wistar rats were divided into three groups. NG-nitro-L-arginine methyl ester (L-NAME) was intraperitoneally administered to induce oxidative stress. TBARS and plasma nitric oxide levels were analyzed in all groups. Histopathology of the liver and vascular tissue was performed. RESULTS Statistically significant differences were seen in liver, brain and spinal cord TBARS levels. CONCLUSIONS Following the use of L-NAME, hepatic tissue increased the number of Kupffer cells as oxidative stress and inflammatory response increased. The use of L-NAME caused an increase in lipid peroxidation products and, consequently, in oxidative stress in animals. Hydroxyurea doses of 35 mg / kg / day reduced TBARS values in liver, brain and spinal cord.
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Affiliation(s)
- Abilio Torres dos Santos
- Fellow Master degree, Postgraduate Program in Health and Development in the Midwest Region, Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande-MS, Brazil. Conception and design of the study; technical procedures; acquisition, interpretation and analysis of data; manuscript writing
| | - Iandara Schettert Silva
- PhD, Associate Professor, Postgraduate Program in Health and Development in the Midwest Region, Laboratory of Experimental Carcinogenicity, UFMS, Campo Grande-MS, Brazil. Conception and design of the study, interpretation of data, manuscript writing, critical revision, final approval
| | - Maria Lucia Ivo
- Full Professor, Postgraduate Program in Health and Development in the Midwest Region, Coordinator of the Epidemiological Studies Laboratory, UFMS, Campo Grande-MS, Brazil. Conception and design of the study, interpretation of data, manuscript writing, critical revision, final approval
| | - Camila Tozaki Rodrigues
- Specialist Nurse in Obstetrics, School of Nursing, Universidade de São Paulo (USP), Brazil. Design of the study, technical procedures
| | - Eduardo Benedetti Parisotto
- PhD, Assistant Professor, Faculty of Pharmaceutical Sciences, Food and Nutrition, UFMS, Campo Grande-MS, Brazil. Interpretation of data, manuscript writing, critical revision, final approval
| | - Rondon Tosta Ramalho
- PhD, Full Professor, Postgraduate Program in Health and Development in the Midwest Region, Laboratory of Experimental Carcinogenicity, UFMS, Campo Grande-MS, Brazil. Interpretation of data, manuscript writing, critical revision, final approval
| | - Geanlucas Mendes Monteiro
- Fellow Master degree, Postgraduate Program in Health and Development in the Midwest Region, UFMS, Campo Grande-MS, Brazil. Conception and design of the study, technical procedure
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Ilgenfritz J, Aydos RD, Silva IS, Takita LC, de Abreu AC, Silva CAC, Faleiros KB, Santiago EMDL, Ramalho RT. Use of cyanoacrylate-based surgical adhesives associated to the macroporous tape in skin synthesis in rats. Acta Cir Bras 2019; 34:e201900701. [PMID: 31531536 PMCID: PMC6746563 DOI: 10.1590/s0102-865020190070000001] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 05/11/2019] [Accepted: 06/08/2019] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To compare the use of new cyanoacrylate surgical adhesive associated with macroporous tapes in cutaneous synthesis. METHODS Male Wistar rats with a longitudinal incision of 4cm were used on the back, divided into four groups: GI used octyl-cyanoacrylate (Dermabond®), GII used N-2-butylcyanoacrylate, GIII used octyl-cyanoacrylate and macroporous tape and GIV used N-2-butyl cyanoacrylate and macroporous tape. On the fourteenth day, the rats were submitted to euthanasia, were divided in two parts, and a layer of skin subcutaneous tissue through an area of operative healing was removed. One part was submitted to the study of rupture strength with the use of tensiometer, and in the other part histological examination was performed. RESULTS No force test was similar between groups I and II, being different from groups III and IV (P <0.001), which were identical to each other (P> 0.05). The units were compared among the studied groups, and they were different with the use of macroporous tapes (P> 0.05). CONCLUSIONS The purpose of macroporous tapes is associated with CA adhesives in cutaneous tissues that provide more resistant scars. The use of a combination of macroporous tapes leads to complete re-epithelialization, without provoking foreign body reaction, has hemostatic properties and does not cause an absorptive reaction.
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Affiliation(s)
- João Ilgenfritz
- MD, Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande-MS, Brazil. Conception and design of the study, technical procedures, analysis and interpretation of data, manuscript writing
| | - Ricardo Dutra Aydos
- PhD, Associate Professor of Surgery, Postgraduate Program in Health and Development in the Midwest Region, UFMS, Campo Grande-MS, Brazil. Conception and design of the study, interpretation of data, final approval
| | - Iandara Schettert Silva
- Full Professor, Postgraduate Program in Health and Development in the Midwest Region, UFMS, Campo Grande-MS, Brazil. Intellectual and scientific content of the study
| | - Luiz Carlos Takita
- PhD, Assistant Professor, Department of Surgery, UFMS, Campo Grande-MS, Brazil. Histopathological examinations
| | - Antônio Carlos de Abreu
- Fellow Master degree, Postgraduate Program in Health and Development in the Midwest Region, UFMS, Campo Grande-MS, Brazil. Technical procedures
| | - Cynthia Alexia Cunha Silva
- Fellow Biologist undergraduate, Biosciences Institute, UFMS, Campo Grande-MS, Brazil. Technical procedures
| | - Karina Bossi Faleiros
- Fellow medical undergraduate, Faculty of Medicine, UFMS, Campo Grande-MS, Brazil. Technical procedures
| | | | - Rondon Tosta Ramalho
- Full Professor, Postgraduate Program in Health and Development in the Midwest Region, UFMS, Campo Grande-MS, Brazil. Technical procedures, macroscopic and histopathologic analysis, manuscript writing
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Silveira AS, Aydos RD, Ramalho RT, Silva IS, Caldas RDA, Santos Neto ATD, Rodrigues CT. Oxidative stress effects in the uterus, placenta and fetus of pregnant rats submitted to acute and chronic stress. Acta Cir Bras 2018; 33:806-815. [PMID: 30328913 DOI: 10.1590/s0102-865020180090000009] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 08/04/2018] [Indexed: 12/24/2022] Open
Abstract
PURPOSE To evaluate the effects of oxidative stress in pregnant rats submitted to acute and chronic stress, relating to alterations in the uterus, placenta and fetus. METHODS Twenty-four female Wistar albino (Rattus norvegicus), were divided into four groups, for induction of oxidative stress the animals were submitted to cold and physical immobilization. Plasma fasting glucose and MDA were determined in all groups and the fetuses and placentas were measured. RESULTS There were no statistical differences in the levels of malonic dialdehyde (MDA), however the averages of chronic stress group were higher compared to control groups, which could explain the observed adverse effects; there was no correlation between puppies' size, the weight of the placenta and MDA values. CONCLUSIONS Chronic stress causes adverse effects, when compared to control groups; chronic stress group had fetuses, placentas and number of puppies, significantly lower compared to other groups. The rats exposed to chronic stress, also presented a higher frequency of fetal resorption.
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Affiliation(s)
- Adriano Silva Silveira
- Fellow Master degree, Postgraduate Program in Health and Development in the Midwest Region, Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande-MS, Brazil. Conception and design of the study; technical procedures; acquisition, interpretation and analysis of data; manuscript writing
| | - Ricardo Dutra Aydos
- PhD, Associate Professor of Surgery, Postgraduate Program in Health and Development in the Midwest Region, UFMS, Campo Grande-MS, Brazil. Conception and design of the study, interpretation of data, manuscript writing, critical revision, final approval
| | - Rondon Tosta Ramalho
- Full Professor, Laboratory of Experimental Carcinogenicity, UFMS, Campo Grande-MS, Brazil. Macroscopic and histopathologic analysis
| | - Iandara Schettert Silva
- Full Professor, Postgraduate Program in Health and Development in the Midwest Region, UFMS, Campo Grande-MS, Brazil. Intellectual and scientific content of the study
| | - Ruy de Araujo Caldas
- Senior Visiting Professor, UFMS, Campo Grande-MS, Brazil. English language, manuscript writing
| | - Abílio Torres Dos Santos Neto
- Fellow Master degree, Postgraduate Program in Health and Development in the Midwest Region, UFMS, Campo Grande-MS, Brazil. Technical procedures
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Ilgenfritz Neto J, Aydos RD, Silva IS, Ramalho RT, Ilgenfritz Júnior J, Campos GGOD, Nakamura RK, Guerisoli DMZ, Cantero WDB. The aplication of cyanoacrilate surgical glue on skin suture in rats. Acta Cir Bras 2017; 32:56-64. [DOI: 10.1590/s0102-865020170107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 12/20/2016] [Indexed: 11/22/2022] Open
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Brasileiro JL, Ramalho RT, Aydos RD, Silva IS, Takita LC, Marks G, Assis PVD. Pentoxifylline and prostaglandin E1 action on ischemia and reperfusion of small intestine tissue in rats. An immunohistochemical study. Acta Cir Bras 2015; 30:115-9. [DOI: 10.1590/s0102-86502015002000005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 01/16/2015] [Indexed: 11/22/2022] Open
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Ramalho RT, Aydos RD, Schettert I, Cassino PC. Histopathological evaluation of tumor necrosis and volume after cyanogenic chemotherapy. Acta Cir Bras 2014; 29 Suppl 2:38-42. [DOI: 10.1590/s0102-8650201400140008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Ramalho RT, Aydos RD, Schettert I, Assis PVD, Cassino PC. Sulfane sulfur deficiency in malignant cells, increasing the inhibiting action of acetone cyanohydrin in tumor growth. Acta Cir Bras 2013; 28:728-32. [DOI: 10.1590/s0102-86502013001000007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 09/12/2013] [Indexed: 11/22/2022] Open
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Assis PVD, Aydos RD, Silva IS, Marks G, Takita LC, Gonçalves MA, Ramalho RT. Expression of FAS ligand in the ipsilateral and contralateral testicles of rats subjected to the torsion of the unilateral testicular cord. Acta Cir Bras 2013; 28:518-22. [DOI: 10.1590/s0102-86502013000700007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 06/19/2013] [Indexed: 11/22/2022] Open
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Higa RA, Aydos RD, Silva IS, Ramalho RT, Souza ASD. Study of the antineoplastic action of Tabebuia avellanedae in carcinogenesis induced by azoxymethane in mice. Acta Cir Bras 2011; 26:125-8. [DOI: 10.1590/s0102-86502011000200009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2010] [Accepted: 12/14/2010] [Indexed: 11/22/2022] Open
Abstract
PURPOSE: To study the antitumor action of Tabebuia avellanedae in experimentally induced colon carcinogenesis by azoxymethane in mice. METHODS: Fifty (n=50) mice were divided into five groups: in group I azoxymethane (AOM) was administered, in Group II - β-lapachone, in group III - vehicle (diluent) and in group IV - vehicle + AOM and finally in group V - β-lapachone + AOM. RESULTS: It was observed the presence of aberrant crypt foci in all animals of groups I and IV, 50% in group II and 90% in group V. CONCLUSION: The β-lapachone extracted from the Tabebuia avellanedae showed no protective effect of lesions induced by azoxymethane in colon of mice.
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Ramalho RT, Aydos RD, Cereda MP. Evaluation of acetone cyanohydrin effect in "in vitro" inativation of the Ehrlich ascites tumor cells. Acta Cir Bras 2010; 25:111-6. [DOI: 10.1590/s0102-86502010000100022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Accepted: 11/19/2009] [Indexed: 11/22/2022] Open
Abstract
PURPOSE: To evaluate the antitumor effect of acetone cyanohydrin in Ehrlich ascites tumor cells in vitro. METHODS: The Ehrlich ascites tumor cells and lymphocytes were incubated with different concentrations of acetone cyanohydrin (0, 0.5, 1.0, 2.0, 10.0, 20.0 and 30.0 μg.mL-1), After 1, 2, 3, 4, 18 and 24 hours cell viability tests were performed by the trypan blue method. RESULTS: The results demonstrated a dose-dependent cytotoxic effect against the cells of Ehrlich ascites tumor. The concentrations of 20 and 30 μg.mL-1 was 100% of cell death in only 1 and 2 hours respectively. In lower doses of 0.5, 1.0 and 2.0 μg.mL-1 the cytotoxic effect was less intense, increasing gradually with time. CONCLUSIONS: At low concentrations of 0.5, 1.0 and 2.0 μg.mL-1, more than 90% of cell death was observed only after 24 hours of incubation which is the evidence that the tumor cell has the ability to poison cumulatively and irreversibly itself with the acetone cyanohydrin when compared with the results presented by human lymphocytes that the same doses and at the same time of incubation reached a maximum of 30% of cell death, suggesting an activity of rhodanese differentiated between the two cells.
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