Chemopreventive Evaluation of a Schiff Base Derived Copper (II) Complex against Azoxymethane-Induced Colorectal Cancer in Rats
Autor: | Shahram Golbabapour, Hamed Karimian, Maryam Zahedifard, Hapipah Mohd Ali, Pouya Hassandarvish, Soheil Zorofchian Moghadamtousi, Nazia Abdul Majid, Abdrabuh NajiHussien, Elham Rouhollahi, Amel Abdullah Almagrami, Nura Suleiman Gwaram, Maryam Hajrezaie, Somaye Fani, Mahmood Ameen Abdulla, Behnam Kamalidehghan |
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Jazyk: | angličtina |
Rok vydání: | 2014 |
Předmět: |
Male
Pathology medicine.medical_treatment Cancer Treatment lcsh:Medicine Pharmacology Kidney Biochemistry chemistry.chemical_compound Aberrant Crypt Foci Molecular Cell Biology lcsh:Science Saline chemistry.chemical_classification Multidisciplinary biology Chemistry Glutathione peroxidase Cancer Risk Factors Colon Adenocarcinoma Animal Models Malondialdehyde Oncology Liver Medicine Female Colorectal Neoplasms Oxidation-Reduction Aberrant crypt foci Research Article Biotechnology medicine.medical_specialty Drugs and Devices Histology Drug Research and Development Immunology Azoxymethane Chemoprevention Superoxide dismutase Inorganic Chemistry Model Organisms In vivo Proliferating Cell Nuclear Antigen Gastrointestinal Tumors medicine Toxicity Tests Acute Animals Biology Schiff Bases lcsh:R Body Weight Cancer Cancers and Neoplasms Chemotherapy and Drug Treatment medicine.disease Rats Disease Models Animal biology.protein Carcinogens Rat lcsh:Q Blood Chemical Analysis Copper |
Zdroj: | PLoS ONE PLoS ONE, Vol 9, Iss 3, p e91246 (2014) |
ISSN: | 1932-6203 |
Popis: | Background: Based on the potential of Schiff base compounds to act as sources for the development of cancer chemotherapeutic agents, this in vivo study was performed to investigate the inhibitory properties of the synthetic Schiff base compound Cu(BrHAP)2 on colonic aberrant crypt foci (ACF). Methodology: This study involved five groups of male rats. The negative control group was injected with normal saline once a week for 2 weeks and fed 10% Tween 20 for 10 weeks, the cancer control group was subcutaneously injected with 15 mg/kg azoxymethane once per week for two consecutive weeks, the positive control group was injected with 15 mg/kg azoxymethane once per week for two consecutive weeks and 35 mg/kg 5-fluorouracil (injected intra-peritoneally) for 4 weeks, and the experimental groups were first injected with 15 mg/kg azoxymethane once per week for two consecutive weeks and then fed 2.5 or 5 mg/kg of the Schiff base compound once a day for 10 weeks. Application of the Schiff base compound suppressed total colonic ACF formation by up to 72% to 74% (P,0.05) when compared with the cancer control group. Analysis of colorectal specimens revealed that treatments with the Schiff base compound decreased the mean crypt scores in azoxymethane-treated rats. Significant elevations of superoxide dismutase, glutathione peroxidase and catalase activities and a reduction in the level of malondialdehyde were also observed. Histologically, all treatment groups exhibited significant decreases in dysplasia compared to the cancer control group (P,0.05). Immunohistochemical staining demonstrated down-regulation of the PCNA protein. Comparative western blot analysis revealed that COX-2 and Bcl2 were up-regulated and Bax was down-regulated compared with the AOM control group. Conclusion: The current study demonstrated that the Cu(BrHAP)2 compound has promising chemoprotective activities that are evidenced by significant decreases in the numbers of ACFs in azoxymethane-induced colon cancer. |
Databáze: | OpenAIRE |
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