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Bouhniz OE, Kenani A. Potential role of genetic polymorphisms in neoadjuvant chemotherapy response in breast cancer. J Chemother 2024:1-15. [PMID: 38511398 DOI: 10.1080/1120009x.2024.2330241] [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: 10/27/2023] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Abstract
Chemoresistance leads to treatment failure, which can arise through different mechanisms including patients' characteristics. Searching for genetic profiles as a predictor for drug response and toxicity has been extensively studied in pharmacogenomics, thus contributing to personalized medicine and providing alternative treatments. Numerous studies have demonstrated significant evidence of association between genetic polymorphisms and response to neoadjuvant chemotherapy (NAC) in breast cancer. In this review, we explored the potential impact of genetic polymorphisms in NAC primary resistance through selecting a specific clinical profile. The genetic variability within pharmacokinetics, pharmacodynamics, DNA synthesis and repair, and oncogenic signaling pathways genes could be predictive or prognostic markers for NAC resistance. The clinical implication of these results can help provide individualized treatment plans in the early stages of breast cancer treatment. Further studies are needed to determine the genetic hosts of primary chemoresistance mechanisms in order to further emphasize the implementation of genotypic approaches in personalized medicine.
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Affiliation(s)
- Om Elez Bouhniz
- Research Laboratory "Environment, Inflammation, Signaling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, Monastir, Tunisia
| | - Abderraouf Kenani
- Research Laboratory "Environment, Inflammation, Signaling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, Monastir, Tunisia
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Boudhiba N, Sfar S, Helaoui A, Bouanene I, Hołysz M, Skalska E, Bouchahda H, Jagodziński PP, Kenani A. Association between the ELAVL1 gene single nucleotide polymorphisms and the Genetic Susceptibility to cervical cancer by high resolution melting in a Tunisian population. Mol Biol Rep 2023; 50:2559-2567. [PMID: 36626067 DOI: 10.1007/s11033-022-07868-2] [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: 02/03/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Human papillomavirus is the major cause of cervical cancer, but only few cases develop into cancer. Nevertheless, HuR (ELAVL1) gene has been implicated in the oncogenesis of certain cancers. The correlation between ELAVL1 gene and the risk of cervical cancer remains unclear. Therefore, this study investigated the effect of ELAVL1 gene polymorphisms (SNPs) in cervical cancer development in Tunisian women. METHOD ELAVL1 gene SNPs: ELAVL1 rs12983784 T > C, ELAVL1 rs14394 T > C, ELAVL1 rs74369359 G > T, ELAVL1 rs35986520 G > A, ELAVL1 rs10402477 C > T, ELAVL1 rs12985234 A > G and ELAVL1 rs2042920 T > G, were genotyped by High resolution melting (HRM). SNPStats software was used to perform linkage disequilibrium (LD) and haplotype analysis. RESULTS Comparing the cervical cancer patients with healthy control participants, the SNPs rs12983784 (P = 0.032), rs74369359 (p = < 10- 3) and rs10402477 (P = 0.001) were associated with an increased cervical cancer risk. Contrary to the SNPs rs14394, rs7469359, rs35986520, rs12985234 and rs2042920 (p˃0.05). The haplotype analysis of the seven SNPs of ELAVL1 gene showed that there is no association between the different haplotypes and a possible risk of cervical cancer disease. Moreover, there was a significant Linkage disequilibrium between rs35986520 and rs2042920 (D'=0.9972) and between rs2042920 and rs10402477 (D'=0.9977). CONCLUSION Our results indicated that genetic variants in the ELAVL1 gene might be associated with susceptibility to cervical cancer in the Tunisian population.
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Affiliation(s)
- Najet Boudhiba
- Research Laboratory "Environment, Inflammation, Signalling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, 5000, Monastir, Tunisia.
| | - Sana Sfar
- Research Laboratory "Environment, Inflammation, Signalling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, 5000, Monastir, Tunisia
| | - Ahlem Helaoui
- Research Laboratory "Environment, Inflammation, Signalling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, 5000, Monastir, Tunisia
| | - Ines Bouanene
- Department of Community Medicine Faculty of Medicine of Monastir, University of Monastir, Monastir, Tunisia
| | - Marcin Hołysz
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 6 S´wie˛cickiego St, 60-781, Poznan, Poland
| | - EwaIwańczyk Skalska
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 6 S´wie˛cickiego St, 60-781, Poznan, Poland
| | - Haifa Bouchahda
- Department of Gynaecology Obstetric, University of Monastir, Tahar Sfar University Hospital, 5111, Mahdia, Tunisia
| | - Paweł P Jagodziński
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 6 S´wie˛cickiego St, 60-781, Poznan, Poland
| | - Abderraouf Kenani
- Research Laboratory "Environment, Inflammation, Signalling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, 5000, Monastir, Tunisia
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Aroui S, Fetoui H, Kenani A. Natural dietary compound naringin inhibits glioblastoma cancer neoangiogenesis. BMC Pharmacol Toxicol 2020; 21:46. [PMID: 32576255 PMCID: PMC7310324 DOI: 10.1186/s40360-020-00426-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 12/19/2019] [Accepted: 06/16/2020] [Indexed: 01/09/2023] Open
Abstract
Background Flavonoids, which existed nearly in all fruits and vegetables, are considered as a class of plant-secondary metabolites with a polyphenolic structure and have properties with health-improving potential. Yet, not so many experimental focus on the benefits of flavonoid in vivo after external application. Here we assessed the impacts of naringin in vitro and in vivo in the human glioma U-87 cells implanted into athymic mice. Methods Tumor size and animal survival time were followed in naringin-treated mice bearing subcutaneous gliomas. To define the effects of naringin on angiogenesis, in vitro, tube formation and migration were assayed using endothelial HUVEC cell line. Results Low concentration of naringin remarkably inhibited tubulogenesis and reduced cell invasion. Moreover, naringin has been shown to have a toxicity effect on U-87 cells in a dose-dependent way. Furthermore, naringin administration (120 mg/kg/day) applies serious anti-cancer belongings on glioblastoma, as demonstrated by a slow cancer progression. Conclusions Our study has provided the first evidence on the antitumor effect of naringin, which is somehow due to the inhibition of invasion and angiogenesis.
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Affiliation(s)
- Sonia Aroui
- Laboratory of Biochemistry, Research Unit: UR 12ES08 "Cell Signaling and Pathologies", Faculté de Médecine de Monastir, University of Monastir, 5019, Monastir, Tunisia.
| | - Hamadi Fetoui
- Laboratory of Animal Eco-physiology, Faculty of Sciences, Sfax University, Sfax, Tunisia
| | - Abderraouf Kenani
- Laboratory of Biochemistry, Research Unit: UR 12ES08 "Cell Signaling and Pathologies", Faculté de Médecine de Monastir, University of Monastir, 5019, Monastir, Tunisia
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Bouhniz OE, Zaied S, Naija L, Bettaieb I, Rahal K, Driss M, Kenani A. Association between HER2 and IL-6 genes polymorphisms and clinicopathological characteristics of breast cancer: significant role of genetic variability in specific breast cancer subtype. Clin Exp Med 2020; 20:427-436. [PMID: 32372374 DOI: 10.1007/s10238-020-00632-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 04/24/2020] [Indexed: 12/12/2022]
Abstract
Clinical implications of single nucleotide polymorphisms (SNPs) in breast cancer have been explored to determine the impact of SNP in modulating the pathogenesis of breast cancer. This study aimed to evaluate the association between HER2 (rs2517956) and (IL-6) (rs1800795 and rs2069837) and clinicopathological characteristics in HER2-positive and HER2-negative breast cancer in Tunisian women. A retrospective cohort study included 273 patients. Genomic DNA was extracted from peripheral blood samples, and genotyping of selected SNP was performed by PCR-RFLP assays. Statistical analysis was then carried out to assess genotypic frequencies and genetic association in relation to breast cancer subtypes. SHEsis software was applied to IL-6 haplotypic structure analysis. The distribution of genotype frequencies of rs2517956, rs1800795 and rs2069837 showed no statistically difference between HER2-positive and HER2-negative breast cancer. HER2 (rs2517956) was associated with tumor size (p = 0.01) and age at diagnosis (p = 0.02) in HER2-negative breast cancers, but no significant association was observed in HER2-positive breast cancer. For IL-6 gene, none of the clinicopathological parameters were associated with rs1800795 and rs2069837 in both breast cancer subtypes (p > 0.05). SHEsis analysis revealed a high linkage disequilibrium between rs1800795 and rs2069837; differences in the distribution of IL-6 two loci haplotypes were statistically negative between HER2-positive and HER2-negative breast cancer (p = 0.20) which confirmed no association with HER2 overexpression. This study demonstrates that rs2517956 is associated with clinicopathological characteristics in HER2-negative breast cancer, which could have a differential prognostic role compared to HER2-positive breast cancer.
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Affiliation(s)
- Om Elez Bouhniz
- Research Laboratory "Environment, Inflammation, Signaling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, Monastir, Tunisia.
| | - Sonia Zaied
- Research Laboratory "Environment, Inflammation, Signaling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, Monastir, Tunisia.,Department of Clinical Oncology, CHU Fattouma Bourguiba, Monastir, Tunisia
| | - Lamia Naija
- Department of Surgical Oncology, Salah Azaiez Institute, Tunis, Tunisia
| | - Ilhem Bettaieb
- Department of Immuno-Histo-Cytology, Salah Azaiez Institute, Tunis, Tunisia
| | - Khaled Rahal
- Department of Surgical Oncology, Salah Azaiez Institute, Tunis, Tunisia
| | - Maha Driss
- Department of Immuno-Histo-Cytology, Salah Azaiez Institute, Tunis, Tunisia
| | - Abderraouf Kenani
- Research Laboratory "Environment, Inflammation, Signaling and Pathologies" (LR18ES40), Faculty of Medicine of Monastir, University of Monastir, Monastir, Tunisia
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Dhifallah H, Aissi S, Njima M, Zakhama A, Kenani A. IGF1 polymorphisms and colon cancer risk in Tunisian population. Tunis Med 2020; 98:60-69. [PMID: 32395779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND Insuline-like growth factor I (IGF1) is a peptide growth factor that promotes cell proliferation and inhibits apoptosis. AIM To examine the association of genetic variants in IGF1 (rs12423791, rs1019731, rs5742632, rs2033178 and rs2373722) with risk of colon cancer in Tunisia. METHODS The study included 76 formalin-fixed paraffin embedded primary colorectal carcinomas and paired normal colon. The five IGF1 polymorphisms were determined by polymerase chain-restriction fragment length polymorphism (PCR-RFLP). RESULT A significant differences in genotypes and alleles frequency of the five examined IGF1 polymorphisms was determined between tumor and healthy tissues of colon cancer patients (P<0,01). While, no significant association was found between genetic variation in IGF1 variants and clinic-pathological parameters in tumors tissues. Expect for rs2373722, a statistically significant correlation was detected between tumor localization and the presence of the (A) mutated allele (OR=0,49; 95% CI 0,25-0,99; P=0,03). CONCLUSION This analysis shows that IGF1gene polymorphisms rs12423791, rs1019731, rs5742632, rs2033178 and rs2373722 are associated with the risk of colon cancer in Tunisian population.
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Dhifallah H, Aissi S, Njima M, Zakhama A, Kenani A. IGF1 polymorphisms and colon cancer risk in Tunisian population. Tunis Med 2019; 97:1407-1414. [PMID: 32173812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND Insuline-like growth factor I (IGF1) is a peptide growth factor that promotes cell proliferation and inhibits apoptosis. AIM To examine the association of genetic variants in IGF1 (rs12423791, rs1019731, rs5742632, rs2033178 and rs2373722) with risk of colon cancer in Tunisia. METHODS The study included 76 formalin-fixed paraffin embedded primary colorectal carcinomas and paired normal colon. The five IGF1 polymorphisms were determined by polymerase chain-restriction fragment length polymorphism (PCR-RFLP). RESULT A significant differences in genotypes and alleles frequency of the five examined IGF1 polymorphisms was determined between tumor and healthy tissues of colon cancer patients (P<0,01). While, no significant association was found between genetic variation in IGF1 variants and clinic-pathological parameters in tumors tissues. Expect for rs2373722, a statistically significant correlation was detected between tumor localization and the presence of the (A) mutated allele (OR=0,49; 95% CI 0,25-0,99; P=0,03). CONCLUSION This analysis shows that IGF1gene polymorphisms rs12423791, rs1019731, rs5742632, rs2033178 and rs2373722 are associated with the risk of colon cancer in Tunisian population.
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Abstract
Abstract
Background: Human plasma paraoxonase1 (PON1) is an esterase catalyzing the hydrolysis of organophosphorus pesticides and other xenobiotics. The aims of this study were to develop a rapid method to determinate PON1 activity, evaluate some interference, and study the influence of storage temperature on PON1 activity assay.
Methods: Measurement of PON1 activity was performed for 369 samples by measuring the hydrolysis of paraoxon using a spectrophotometric method adapted on konelab 30 ⃞.
Results: The developed method facilitates the determination of PON1 activity at the rate of more than 200 samples per hour, and it is linear between 2 and 900 IU/L. Intra and inter-assay imprecision coefficients of variation were 2% and 5% respectively. PON1 activity in serum was correlated with those in heparinized plasma (r = 0.994, p < 0.001) and in plasma/EDTA (r = 0.962, p < 0.001). The mean inhibition of the PON1 activity was, by EDTA/K3, 41 ± 10 %. There was not significant PON1 activity variation after 40 days of storage at -20°C or at +4 ⃞ C. There were no substantial interferences from haemoglobin, jaundice and hyperlipidemia.
Conclusion: The developed method is reliable, reproducible, and suitable. It can also be performed on heparinized plasma for the determination of PON1 activity. Hence, it may be useful for assaying PON1 activity in several intoxications such as organophosphorus, sarin, and soman nerve agents.
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Affiliation(s)
- Manel Araoud
- Laboratory of Biochemistry, Faculty of Medicine of Monastir, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia Tunisia
- Laboratory of Biochemistry- Toxicology, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
| | - Fadoua Neffeti
- Laboratory of Biochemistry- Toxicology, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
| | - Wahiba Douki
- Laboratory of Biochemistry- Toxicology, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
| | - Abderraouf Kenani
- Laboratory of Biochemistry, Faculty of Medicine of Monastir, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
| | - Mohamed Fadhel Najjar
- Laboratory of Biochemistry- Toxicology, University Hospital Fattouma Bourguiba Monastir, Monastir 5019, Tunisia
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Fkih M'hamed I, Privat M, Trimeche M, Penault-Llorca F, Bignon YJ, Kenani A. miR-10b, miR-26a, miR-146a And miR-153 Expression in Triple Negative Vs Non Triple Negative Breast Cancer: Potential Biomarkers. Pathol Oncol Res 2017; 23:815-827. [PMID: 28101798 DOI: 10.1007/s12253-017-0188-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 01/02/2017] [Indexed: 12/31/2022]
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs composed of 18-25 nucleotides that can post-transcriptionally regulate gene expression and have key regulatory roles in cancer, acting as both oncogenes and tumor suppressors. About 1000 genes in humans encode miRNAs, which account for approximately 3% of the human genome, and up to 30% of human protein coding genes may be regulated by miRNAs. The objective of this article is to evaluate the expression profile of four miRNAs previously implicated in triple negative breast cancer: miR-10b, miR-26a, miR-146a and miR-153, and to determine their possible interaction in triple negative and non triple negative breast cancer based on clinical outcome and the expression of BRCA1. 24 triple-negative and 13 non triple negative breast cancer cases, were studied by q-RT-PCR and immunohistochemistry to determine the expression of the four studied miRNAs and the BRCA1 protein, respectively. We observed that the BRCA1 protein was absent in 62.5% of the triple negative cases. Besides, the miR-146a and miR-26a were over expressed in triple negative breast cancer. These two miRNAs, miR-10b and miR-153 were significantly associated to lymph node metastases occurrence in triple negative breast carcinoma. All the analyzed microRNAs were not associated with the expression of BRCA1 in our conditions. Our work provides evidence that miR-146a, miR-26a, miR-10b and miR-153 could be defined as biomarkers in triple negative breast cancer to predict lymph node metastases (LNM).
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Affiliation(s)
- Insaf Fkih M'hamed
- Departement of oncogenetics, Centre Jean Perrin, BP 392, 63011, Clermont-Ferrand, France.,EA4677 ERTICA, University of Auvergne, Clermont-Ferrand, France.,Laboratory of Biochemistry Research unit UR 12ES08 Cell Signaling and Disease, Faculty of Medicine of Monastir, University of Monastir, 5019, Monastir, Tunisia
| | - Maud Privat
- Departement of oncogenetics, Centre Jean Perrin, BP 392, 63011, Clermont-Ferrand, France.,EA4677 ERTICA, University of Auvergne, Clermont-Ferrand, France
| | - Mounir Trimeche
- Department of Pathology, Farhat Hached Hospital, 4000, Sousse, Tunisia
| | | | - Yves-Jean Bignon
- Departement of oncogenetics, Centre Jean Perrin, BP 392, 63011, Clermont-Ferrand, France.,EA4677 ERTICA, University of Auvergne, Clermont-Ferrand, France
| | - Abderraouf Kenani
- Laboratory of Biochemistry Research unit UR 12ES08 Cell Signaling and Disease, Faculty of Medicine of Monastir, University of Monastir, 5019, Monastir, Tunisia.
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Burgy O, Wettstein G, Bellaye PS, Decologne N, Racoeur C, Goirand F, Beltramo G, Hernandez JF, Kenani A, Camus P, Bettaieb A, Garrido C, Bonniaud P. Deglycosylated bleomycin has the antitumor activity of bleomycin without pulmonary toxicity. Sci Transl Med 2016; 8:326ra20. [PMID: 26888428 DOI: 10.1126/scitranslmed.aad7785] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Bleomycin (BLM) is a potent anticancer drug used to treat different malignancies, mainly lymphomas, germ cell tumors, and melanomas. Unfortunately, BLM has major, dose-dependent, pulmonary toxicity that affects 20% of treated individuals. The most severe form of BLM-induced pulmonary toxicity is lung fibrosis. Deglyco-BLM is a molecule derived from BLM in which the sugar residue d-mannosyl-l-glucose disaccharide has been deleted. The objective of this study was to assess the anticancer activity and lung toxicity of deglyco-BLM. We compared the antitumor activity and pulmonary toxicity of intraperitoneally administrated deglyco-BLM and BLM in three rodent models. Pulmonary toxicity was examined in depth after intratracheal administration of both chemotherapeutic agents. The effect of both drugs was further studied in epithelial alveolar cells in vitro. We demonstrated in rodent cancer models, including a human Hodgkin's lymphoma xenograft and a syngeneic melanoma model, that intraperitoneal deglyco-BLM is as effective as BLM in inducing tumor regression. Whereas the antitumor effect of BLM was accompanied by a loss of body weight and the development of pulmonary toxicity, deglyco-BLM did not affect body weight and did not engender lung injury. Both molecules induced lung epithelial cell apoptosis after intratracheal administration, but deglyco-BLM lost the ability to induce caspase-1 activation and the production of ROS (reactive oxygen species), transforming growth factor-β1, and other profibrotic and inflammatory cytokines in the lungs of mice and in vitro. Deglyco-BLM should be considered for clinical testing as a less toxic alternative to BLM in cancer therapy.
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Affiliation(s)
- Olivier Burgy
- INSERM, LNC UMR 866, Laboratoire d'Excellence LipSTIC, Dijon 21079, France. Equipe "Heat Shock Proteins" Labellisée par la Ligue Nationale contre le Cancer, Dijon 21079, France. Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France
| | - Guillaume Wettstein
- INSERM, LNC UMR 866, Laboratoire d'Excellence LipSTIC, Dijon 21079, France. Equipe "Heat Shock Proteins" Labellisée par la Ligue Nationale contre le Cancer, Dijon 21079, France. Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France
| | - Pierre S Bellaye
- INSERM, LNC UMR 866, Laboratoire d'Excellence LipSTIC, Dijon 21079, France. Equipe "Heat Shock Proteins" Labellisée par la Ligue Nationale contre le Cancer, Dijon 21079, France. Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France
| | - Nathalie Decologne
- Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France. EPHE, Tumor Immunology and Immunotherapy Laboratory, Dijon 21079, France
| | - Cindy Racoeur
- Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France. EPHE, Tumor Immunology and Immunotherapy Laboratory, Dijon 21079, France
| | - Françoise Goirand
- INSERM, LNC UMR 866, Laboratoire d'Excellence LipSTIC, Dijon 21079, France. Equipe "Heat Shock Proteins" Labellisée par la Ligue Nationale contre le Cancer, Dijon 21079, France. Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France
| | - Guillaume Beltramo
- INSERM, LNC UMR 866, Laboratoire d'Excellence LipSTIC, Dijon 21079, France. Equipe "Heat Shock Proteins" Labellisée par la Ligue Nationale contre le Cancer, Dijon 21079, France. Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France. Service de Pneumologie et Soins Intensifs Respiratoires, Centre Hospitalier Universitaire (CHU), Dijon 21079, France
| | - Jean-François Hernandez
- Institut des Biomolécules Max Mousseron, Faculty of Pharmacy, University of Montpellier, Montpellier 34093, France
| | - Abderraouf Kenani
- Department of Biochemistry, University of Monastir, Monastir 5000, Tunisia
| | - Philippe Camus
- INSERM, LNC UMR 866, Laboratoire d'Excellence LipSTIC, Dijon 21079, France. Equipe "Heat Shock Proteins" Labellisée par la Ligue Nationale contre le Cancer, Dijon 21079, France. Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France. Service de Pneumologie et Soins Intensifs Respiratoires, Centre Hospitalier Universitaire (CHU), Dijon 21079, France
| | - Ali Bettaieb
- Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France. EPHE, Tumor Immunology and Immunotherapy Laboratory, Dijon 21079, France
| | - Carmen Garrido
- INSERM, LNC UMR 866, Laboratoire d'Excellence LipSTIC, Dijon 21079, France. Equipe "Heat Shock Proteins" Labellisée par la Ligue Nationale contre le Cancer, Dijon 21079, France. Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France. Anticancer Centre Georges François Leclerc, CGFL, Dijon 21079, France
| | - Philippe Bonniaud
- INSERM, LNC UMR 866, Laboratoire d'Excellence LipSTIC, Dijon 21079, France. Equipe "Heat Shock Proteins" Labellisée par la Ligue Nationale contre le Cancer, Dijon 21079, France. Faculty of Medicine and Pharmacy of Dijon, Université Bourgogne Franche-Comté, Dijon 21079, France. Service de Pneumologie et Soins Intensifs Respiratoires, Centre Hospitalier Universitaire (CHU), Dijon 21079, France.
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Majouli K, Mahjoub MA, Rahim F, Hamdi A, Wadood A, Besbes Hlila M, Kenani A. Biological properties of Hertia cheirifolia L. flower extracts and effect of the nopol on α-glucosidase. Int J Biol Macromol 2016; 95:757-761. [PMID: 27939269 DOI: 10.1016/j.ijbiomac.2016.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 11/29/2016] [Accepted: 12/03/2016] [Indexed: 01/29/2023]
Abstract
In screening for antioxidant and α-glucosidase inhibitors from the extracts of Hertia cheirifolia L. flowers, the petroleum ether extract showed interesting antioxidant activity and inhibitory effect on the activity of α-glucosidase. The fractionation of this extract resulted in the isolation of a compound which is characterized by NMR and ESI-MS as a nopol. The nopol exhibited potent α-glucosidase inhibitory potential with IC50 value of 220μM. The kinetic evaluation indicated that it acts as a non-competitive inhibitor. A molecular docking study proved that the nopol presented a strong affinity with amino acid residues of α-glucosidase.
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Affiliation(s)
- Kaouther Majouli
- Laboratory of Biochemistry, Research Unit: UR 12ES08 "Cell Signaling and Pathologies", Faculty of Medicine, University of Monastir, Tunisia.
| | - Mohamed Ali Mahjoub
- Laboratory of Genome Diagnostics and Valorisation, ISBM, University of Monastir, Tunisia
| | - Fazal Rahim
- Department of Chemistry, Hazara University, Mansehra, 21120, Khyber Pukhtunkhwa, Pakistan
| | - Assia Hamdi
- Laboratory of Chemical, Galenic and Pharmacological Development of Drugs, Faculty of Pharmacy, University of Monastir, Tunisia
| | - Abdul Wadood
- Department of Biochemistry, Computational Medicinal Chemistry Laboratory, UCSS, Abdul Wali Khan University Mardan, Pakistan
| | - Malek Besbes Hlila
- Laboratory of Transmissible Diseases and of Biologically Active Substances, MDT01, Faculty of Pharmacy, University of Monastir, Tunisia
| | - Abderraouf Kenani
- Laboratory of Biochemistry, Research Unit: UR 12ES08 "Cell Signaling and Pathologies", Faculty of Medicine, University of Monastir, Tunisia
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Mili D, Abid K, Rjiba I, Kenani A. Effect of SP600125 on the mitotic spindle in HeLa Cells, leading to mitotic arrest, endoreduplication and apoptosis. Mol Cytogenet 2016; 9:86. [PMID: 27924151 PMCID: PMC5123282 DOI: 10.1186/s13039-016-0296-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 09/01/2016] [Accepted: 11/14/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The JNK inhibitor SP600125 strongly inhibits cell proliferation in many human cancer cells by blocking mitosis progression and inducing cell death. Despite, all this study, the mechanism by which SP600125 inhibits mitosis-related effects in human cervical cells (HeLa cells) remains unclear. In this study, we investigated the effects of SP600125 on the cell viability, cell cycle, and on the spindle assembly during mitosis in HeLa cells. METHODS To explore this approach, we used a viability test, an immunofluorescence microscopy to detect Histone phosphorylation and mitotic spindle aberrations. Apoptosis was characterised using Western Blotting. RESULTS Treatment of HeLa cells with varying concentrations of SP600125 induces significant G2/M cell cycle arrest with elevated phosphorylation of histone H3 within 48 h, and endoreduplication after 48 h. SP600125 also induces significant abnormal mitotic spindle. High concentrations of SP600125 (20 μM) induce disturbing microtubule assembly in vitro. Additionally, SP600125- induced delayed apoptosis and cell death was accompanied by significant poly ADP-ribose polymerase (PARP) cleavage and caspase-3 activation in the late phase (at 72 h). CONCLUSION Our results confirmed that SP600125 induce mitosis arrest in G2/M, endoreduplication, mitotic spindle aberrations and apoptosis.
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Affiliation(s)
- Donia Mili
- UR 12ES08 "Signalisation Cellulaire et Pathologies" Faculté de Médecine Monastir, Université de Monastir, Monastir, Tunisie
| | - Kaouthar Abid
- UR 12ES08 "Signalisation Cellulaire et Pathologies" Faculté de Médecine Monastir, Université de Monastir, Monastir, Tunisie
| | - Imed Rjiba
- UR 12ES08 "Signalisation Cellulaire et Pathologies" Faculté de Médecine Monastir, Université de Monastir, Monastir, Tunisie
| | - Abderraouf Kenani
- UR 12ES08 "Signalisation Cellulaire et Pathologies" Faculté de Médecine Monastir, Université de Monastir, Monastir, Tunisie
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Majouli K, Hamdi A, Msaada K, Kenani A. A bioactivity guided study on the antibacterial activity of Hertia cheirifolia L. extracts. Microb Pathog 2016; 106:113-118. [PMID: 27769938 DOI: 10.1016/j.micpath.2016.10.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 12/08/2015] [Revised: 10/17/2016] [Accepted: 10/17/2016] [Indexed: 10/20/2022]
Abstract
This study was carried out with the objective to investigate the antibacterial activity of Hertia cheirifolia L. extracts against Gram-positive and Gram-negative strains including Staphylococcus aureus (ATCC 6538), Bacillus subtilis (ATCC 6633), Bacillus licheniformis, Esherichia coli (ATCC 8739), Pseudomonas aeruginosa (ATCC 9027), Salmonella enterica (CIP 8039) and Salmonella typhimirium. The results of this antibacterial screening showed that the ethyl acetate (EtOAc) extracts had the best activity against the tested microorganisms. A bioassay-oriented fractionation approach for the more active extract (roots ethyl acetate extract) led to the obtaining five sub-fractions. Furthermore, these sub-fractions were also tested for antimicrobial activity and the best results were obtained for the roots EtOAc sub-fraction (C) with MICs values between 0.039 and 0.156 mg/mL. Reversed-phase high performance liquid chromatography (RP-HPLC) analysis indicated that the major phenolic components of active (EtOAc) extracts and sub-fraction (C) are fisetin hydrate (82.06%), trans cinnamic acid (63.66%), gallic acid (38.97%) and myricetin (20.92%). These results may help to improve these natural antibacterial substances that could serve as selective agents for bacterial diseases.
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Affiliation(s)
- Kaouther Majouli
- Laboratory of Biochemistry: Cell Signaling and Pathologies, Research Unit: 12ES08, Faculty of Medicine, University of Monastir, Tunisia.
| | - Assia Hamdi
- Laboratory of Chemical, Galenic and Pharmacological Development of Drugs, Faculty of Pharmacy, University of Monastir, Tunisia
| | - Kamel Msaada
- Laboratory of Medicinal and Aromatic Plants, Biotechnology Center in Borj-Cedria Technopol, BP 901, 2050, Hammam-Lif, Tunisia
| | - Abderraouf Kenani
- Laboratory of Biochemistry: Cell Signaling and Pathologies, Research Unit: 12ES08, Faculty of Medicine, University of Monastir, Tunisia
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13
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Aroui S, Dardevet L, Najlaoui F, Kammoun M, Laajimi A, Fetoui H, De Waard M, Kenani A. PTEN-regulated AKT/FoxO3a/Bim signaling contributes to Human cell glioblastoma apoptosis by platinum-maurocalcin conjugate. Int J Biochem Cell Biol 2016; 77:15-22. [DOI: 10.1016/j.biocel.2016.05.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 05/07/2016] [Accepted: 05/17/2016] [Indexed: 10/21/2022]
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14
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Araoud M, Neffeti F, Douki W, Khaled L, Najjar MF, Kenani A, Houas Z. Toxic effects of methamidophos on paraoxonase 1 activity and on rat kidney and liver and ameliorating effects of alpha-tocopherol. Environ Toxicol 2016; 31:842-854. [PMID: 25535039 DOI: 10.1002/tox.22095] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 06/17/2014] [Accepted: 12/07/2014] [Indexed: 06/04/2023]
Abstract
The role of alpha-tocopherol on nephrotoxicity and hepatotoxicity induced by methamidophos (MT) was investigated in wistar rats. Animals were given via gavage, for four weeks, a low dose of MT (MT1), a high dose of MT (MT2), vitamin E (200 mg/kg of bw) or both MT2 plus vitamin E (Vit E) and control group was given distillate water. MT treatment resulted in a significant decrease in the body weight of MT2-treated group. Moreover, MT-treated groups had significantly lower butyrylcholinesterase (p < 0.01) and paraoxonase 1 (PON1) activities compared with the control group (p < 0.05). However, MT2-treated group had significantly higher alkaline phosphatase activity compared with untreated rats (p < 0.05). Both MT-treated groups had significantly higher urea (p < 0.01) and uric acid levels (p < 0.05) compared with the control group. However, significant low uric acid level (p < 0.05) was noted in MT2 plus vit E-treated rats compared with MT2-treated group. Histopathological changes in organ tissues were observed in both MT-treated groups and MT2 plus vit E-treated rats. However, the damage was reduced in MT2 plus vit E-treated rats. Therefore, this study deduces that alpha-tocopherol administration may ameliorate the adverse effects of subacute exposure to MT on rat liver and kidney and this antioxidant can protect PON1 from oxidative stress induced by this organophosphorus pesticide. © 2014 Wiley Periodicals, Inc. Environ Toxicol 31: 842-854, 2016.
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Affiliation(s)
- Manel Araoud
- Laboratory of Biochemistry UR 12/ES/08, Faculty of Medicine of Monastir, University of Monastir, Tunisia
- Laboratory of Biochemistry-Toxicology, University Hospital Fattouma Bourguiba Monastir, Tunisia
| | - Fadoua Neffeti
- Laboratory of Biochemistry-Toxicology, University Hospital Fattouma Bourguiba Monastir, Tunisia
| | - Wahiba Douki
- Laboratory of Biochemistry-Toxicology, University Hospital Fattouma Bourguiba Monastir, Tunisia
| | - Lamia Khaled
- Laboratory of Biochemistry UR 12/ES/08, Faculty of Medicine of Monastir, University of Monastir, Tunisia
| | - Mohamed Fadhel Najjar
- Laboratory of Biochemistry-Toxicology, University Hospital Fattouma Bourguiba Monastir, Tunisia
| | - Abderraouf Kenani
- Laboratory of Biochemistry UR 12/ES/08, Faculty of Medicine of Monastir, University of Monastir, Tunisia
| | - Zohra Houas
- Laboratory of Histology-Cytology and Genetics, Faculty of Medicine of Monastir, University of Monastir, Tunisia
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15
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Abid K, Trimeche T, Mili D, Msolli MA, Trabelsi I, Nouira S, Kenani A. ANGPTL4 variants E40K and T266M are associated with lower fasting triglyceride levels and predicts cardiovascular disease risk in Type 2 diabetic Tunisian population. Lipids Health Dis 2016; 15:63. [PMID: 27004807 PMCID: PMC4804568 DOI: 10.1186/s12944-016-0231-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 03/17/2016] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Angiopoietin-like protein 4 (ANGPTL4) is a metabolic factor that increases plasma triglyceride levels by inhibiting lipoprotein lipase (LPL). The objective of this study was to investigate the association of ANGPTL4 variants (E40K and T266M) with triglyceride levels and with cardiovascular risk factors, such as metabolic syndrome (MetS) and obesity in type 2 diabetic Tunisian population. METHODS We investigated the effect of the tagging single nucleotide polymorphisms (SNPs) rs1044250 (T266M) and rs116843064 (E40K) with triglyceride (TG) levels and CAD risk factors in a cohort of 220 patients undergoing coronary angiography for the evaluation of stable CAD, all of whom had (type 2 diabetes) T2D and were at least overweight. Multivariate logistic regressions were performed on association studies. RESULTS TT genotype of rs1044250 (T266M variant) showed a protective effect on CVD risk in CAD group patients (OR 1.92, 95% CI 0.601.42, p =0.05) compared with control Group patients (OR 1.17, 95% CI 0.70-1.66, p = 0.72). Likewise, GA genotype of rs116843064 (E40K variant): (OR 0.74, 95% CI 0.54-1.65, p =0.01) for the CAD group compared with control Group patients (OR 1.12, 95% CI 0.68-1.74, p = 0.074). CONCLUSIONS ANGPTL4 variants are associated with, not only lower fasting triglyceride levels, but also a decreased cardiovascular risk in T2D Tunisian patients. So, T266M and E40K polymorphism predicts cardiovascular disease risk in Type 2 diabetic Tunisian population.
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Affiliation(s)
- Kaouthar Abid
- />Laboratory of biochemistry, UR 12ES08, Faculty of Medicine, 5000 Monastir, Tunisia
| | - Thouraya Trimeche
- />Laboratory of biochemistry, UR 12ES08, Faculty of Medicine, 5000 Monastir, Tunisia
| | - Donia Mili
- />Laboratory of biochemistry, UR 12ES08, Faculty of Medicine, 5000 Monastir, Tunisia
| | | | - Imen Trabelsi
- />Research Unit: UR 12ES09 Dyslipidemia and Atherogenesis, Faculty of Medicine, Monastir, 5000 Tunisia
| | - Semir Nouira
- />Emergency Medicine, F. Bourguiba University Hospital, Monastir, Tunisia
| | - Abderraouf Kenani
- />Laboratory of biochemistry, UR 12ES08, Faculty of Medicine, 5000 Monastir, Tunisia
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16
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Aroui S, Aouey B, Chtourou Y, Meunier AC, Fetoui H, Kenani A. Naringin suppresses cell metastasis and the expression of matrix metalloproteinases (MMP-2 and MMP-9) via the inhibition of ERK-P38-JNK signaling pathway in human glioblastoma. Chem Biol Interact 2015; 244:195-203. [PMID: 26721195 DOI: 10.1016/j.cbi.2015.12.011] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/02/2015] [Accepted: 12/17/2015] [Indexed: 01/25/2023]
Abstract
Naringin (4',5,7-trihydroxyflavanone 7-rhamnoglucoside), a natural flavonoid, has pharmacological properties. In the present study, we investigated the anti-metastatic activity of naringin and its molecular mechanism(s) of action in human glioblastoma cells. Naringin exhibits inhibitory effects on the invasion and adhesion of U87 cells in a concentration-dependent manner by Matrigel Transwell and cell adhesion assays. Naringin also inhibited the migration of U87 cells in a concentration-dependent manner by wound-healing assay. Additional experiments showed that naringin treatment reduced the enzymatic activities and protein levels of matrix metalloproteinase (MMP)-2 and MMP-9 using a gelatin zymography assay and western blot analyses. Furthermore, naringin was able to reduce the protein phosphorylation of extracellular signal-regulated kinase ERK, p38 mitogen-activated protein kinase and c-Jun N-terminal kinase by western blotting. Collectively, our data showed that naringin attenuated the MAPK signaling pathways including ERK, JNK and p38 and resulted in the downregulation of the expression and enzymatic activities of MMP-2, MMP-9, contributing to the inhibition of metastasis in U87 cells. These findings proved that naringin may offer further application as an antimetastatic agent.
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Affiliation(s)
- Sonia Aroui
- Laboratory of Biochemistry, Molecular Mechanisms and Diseases Research Unit, UR12ES08, Faculty of Medicine, University of Monastir, BP5019, 5000 Monsatir, Tunisia.
| | - Bakhta Aouey
- Laboratory of Toxicology-Microbiology and Environmental Health, UR11ES70, Sciences Faculty of Sfax, University of Sfax, BP1171, 3000 Sfax, Tunisia
| | - Yassine Chtourou
- Laboratory of Toxicology-Microbiology and Environmental Health, UR11ES70, Sciences Faculty of Sfax, University of Sfax, BP1171, 3000 Sfax, Tunisia
| | - Annie-Claire Meunier
- ERL CNRS/University of Poitiers n°7368, Georges Bonnet Street N°1, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Hamadi Fetoui
- Laboratory of Toxicology-Microbiology and Environmental Health, UR11ES70, Sciences Faculty of Sfax, University of Sfax, BP1171, 3000 Sfax, Tunisia
| | - Abderraouf Kenani
- Laboratory of Biochemistry, Molecular Mechanisms and Diseases Research Unit, UR12ES08, Faculty of Medicine, University of Monastir, BP5019, 5000 Monsatir, Tunisia
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17
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Aroui S, Dardevet L, Ajmia WB, de Boisvilliers M, Perrin F, Laajimi A, Boumendjel A, Kenani A, Muller JM, De Waard M. A Novel Platinum–Maurocalcine Conjugate Induces Apoptosis of Human Glioblastoma Cells by Acting through the ROS-ERK/AKT-p53 Pathway. Mol Pharm 2015; 12:4336-48. [DOI: 10.1021/acs.molpharmaceut.5b00531] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sonia Aroui
- Laboratoire
de Biochimie, Unité de recherche UR 12ES08 “Signalisation
Cellulaire et Pathologies”, Faculté de Médecine
de Monastir, Université de Monastir, 5019 Monastir, Tunisia
| | - Lucie Dardevet
- LabEx
Ion Channels, Science and Therapeutics, INSERM U836, Grenoble Neuroscience Institute, 38042 Grenoble Cedex 09, France
- University Grenoble Alpes, 38000 Grenoble, France
| | - Wafa Ben Ajmia
- Toxicology-Microbiology
and Environnemental Health Unit (UR11ES70), Faculty of Sciences, University of Sfax, Sfax 3072, Tunisia
| | - Madryssa de Boisvilliers
- Equipe
émergente “Récepteurs, régulations et
cellules tumorales” (2RCT), Université de Poitiers, 1 rue Georges
Bonnet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Florian Perrin
- Equipe
émergente “Récepteurs, régulations et
cellules tumorales” (2RCT), Université de Poitiers, 1 rue Georges
Bonnet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Amel Laajimi
- Laboratoire
de Biochimie, Unité de recherche UR 12ES08 “Signalisation
Cellulaire et Pathologies”, Faculté de Médecine
de Monastir, Université de Monastir, 5019 Monastir, Tunisia
| | - Ahcène Boumendjel
- University Grenoble Alpes, 38000 Grenoble, France
- CNRS
5063, Département de Pharmacochimie Moléculaire, Université Joseph Fourier, 38400 Saint-Martin d’Hères, France
| | - Abderraouf Kenani
- Laboratoire
de Biochimie, Unité de recherche UR 12ES08 “Signalisation
Cellulaire et Pathologies”, Faculté de Médecine
de Monastir, Université de Monastir, 5019 Monastir, Tunisia
| | - Jean Marc Muller
- Equipe
émergente “Récepteurs, régulations et
cellules tumorales” (2RCT), Université de Poitiers, 1 rue Georges
Bonnet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Michel De Waard
- LabEx
Ion Channels, Science and Therapeutics, INSERM U836, Grenoble Neuroscience Institute, 38042 Grenoble Cedex 09, France
- University Grenoble Alpes, 38000 Grenoble, France
- Smartox Biotechnology, 570 Rue
de la Chimie, 38400 Saint-Martin d’Hères, France
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18
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Fkih M'hamed I, Privat M, Ponelle F, Penault-Llorca F, Kenani A, Bignon YJ. Identification of miR-10b, miR-26a, miR-146a and miR-153 as potential triple-negative breast cancer biomarkers. Cell Oncol (Dordr) 2015; 38:433-42. [PMID: 26392359 PMCID: PMC4653246 DOI: 10.1007/s13402-015-0239-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [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] [Accepted: 08/13/2015] [Indexed: 12/19/2022] Open
Abstract
Background Familial triple-negative breast cancers are often linked to mutations in the BRCA1 tumor suppressor gene. In sporadic triple-negative breast cancers BRCA1 is frequently inactivated at the transcriptional level, and it has been reported that this inactivation may be brought about by promoter methylation. More recently, it was found that BRCA1 may also be regulated at the post-transcriptional level by miRNAs. Here, we explored the expression of putative BRCA1-regulating miRNAs in sporadic human triple-negative breast cancer cells. Methods Nine sporadic human breast cancer-derived cell lines and one benign breast epithelium-derived cell line were assessed for their hormone receptor, growth factor receptor and cytokeratin status by immunocytochemistry. The expression of 5 selected miRNAs predicted to target BRCA1 was assessed using qRT-PCR in the 10 cell lines. In addition, expression profiles of 84 known breast cancer-associated miRNAs were established in these 10 cell lines using PCR Array and qRT-PCR, respectively. The putative role of pre-selected candidate miRNAs in breast cancer development was assessed through exogenous expression of these miRNAs and their anti-miRNAs (‘antagomirs’) in MDA-MB-231 and MCF7 breast cancer-derived cells. Results Based on our expression profiling results, four candidate miRNAs (miR-10b, miR-26a, miR-146a and miR-153) were selected as being potentially involved in triple-negative breast cancer development. Exogenous expression assays revealed that miR-10b and miR-26a, but not miR-146a, can down-regulate the expression of BRCA1 in both triple-negative MDA-MB-231 and luminal epithelial MCF7 breast cancer-derived cells, whereas miR-153 could down-regulate BRCA1 expression only in MCF7 cells. In silico analysis of The Cancer Genome Atlas (TCGA) data confirmed that miR-146a is significantly higher expressed in triple-negative breast tumors compared to other (non triple-negative) breast tumors. Conclusion Our work provides evidence for the involvement of specific miRNAs in triple-negative breast cancer development through regulating BRCA1 expression. Electronic supplementary material The online version of this article (doi:10.1007/s13402-015-0239-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Insaf Fkih M'hamed
- Département d'Oncogénétique, Centre Jean Perrin, BP 392, 63011, Clermont-Ferrand, France.,EA4677 ERTICA, Université d'Auvergne, Clermont-Ferrand, France.,Faculté de médecine de Monastir, Laboratoire de Biochimie, Unité de recherche UR 12ES08 "Signalisation Cellulaire et Pathologies", 5019, Monastir, Tunisie
| | - Maud Privat
- Département d'Oncogénétique, Centre Jean Perrin, BP 392, 63011, Clermont-Ferrand, France.,EA4677 ERTICA, Université d'Auvergne, Clermont-Ferrand, France
| | - Flora Ponelle
- Département d'Oncogénétique, Centre Jean Perrin, BP 392, 63011, Clermont-Ferrand, France.,EA4677 ERTICA, Université d'Auvergne, Clermont-Ferrand, France
| | | | - Abderraouf Kenani
- Faculté de médecine de Monastir, Laboratoire de Biochimie, Unité de recherche UR 12ES08 "Signalisation Cellulaire et Pathologies", 5019, Monastir, Tunisie
| | - Yves-Jean Bignon
- Département d'Oncogénétique, Centre Jean Perrin, BP 392, 63011, Clermont-Ferrand, France. .,EA4677 ERTICA, Université d'Auvergne, Clermont-Ferrand, France.
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19
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Mili D, Georgesse D, Kenani A. Localization and role of RAP55/LSM14 in HeLa cells: a new finding on the mitotic spindle assembly. Acta Biochim Pol 2015; 62:613-9. [PMID: 26339800 DOI: 10.18388/abp.2015_1107] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 08/10/2015] [Accepted: 08/11/2015] [Indexed: 11/10/2022]
Abstract
The MAP family includes large proteins like MAP-1A, MAP-1B, MAP-1C, MAP-2, and MAP-4 and smaller components like tau and MAP-2C. This article focuses on the relevant aspects of RAP55/LSM14 position with emphasis on its role in mitotic spindle formation and stability. In this context, the localization of RNA associated Protein 55kDa (RAP55/LSM14) during mitosis was identified as a Mitotic Spindle Protein (MSP). We found a new location obtained by expressing GFP-tagged proteins in HeLa Cells during mitosis that has never been previously reported. We demonstrated also, for the first time, that the depletion of RAP55/LSM14 destabilizes spindle assembly, stops cells in mitosis and induces many other cell cytoskeletal disorders. Finally, by using an "in vitro" assay investigation, we found that RAP55/LSM14 binds directly the tubulin and that is implicated in the process of the mitotic spindle stabilization, which is a novel discovery in this field of research.
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Affiliation(s)
- Donia Mili
- Inserm Unité 836, 38043 Grenoble, France
- UR 12ES08, Signalisation Cellulaire et Pathologies, Faculté de Médecine Monastir, Université de Monastir, Tunisie
| | | | - Abderraouf Kenani
- UR 12ES08, Signalisation Cellulaire et Pathologies, Faculté de Médecine Monastir, Université de Monastir, Tunisie
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20
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Brahim S, Abid K, Kenani A. Role of carbohydrate moiety of bleomycin-A2 in caspase-3 activation and internucleosomal chromatin fragmentation in apoptosis of laryngeal carcinoma cells. Cell Biol Int 2013; 32:171-7. [DOI: 10.1016/j.cellbi.2007.08.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2007] [Revised: 06/07/2007] [Accepted: 08/29/2007] [Indexed: 10/22/2022]
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21
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Araoud M, Neffeti F, Douki W, Hfaiedh HB, Akrout M, Hassine M, Najjar MF, Kenani A. Adverse effects of pesticides on biochemical and haematological parameters in Tunisian agricultural workers. J Expo Sci Environ Epidemiol 2012; 22:243-247. [PMID: 22377683 DOI: 10.1038/jes.2012.11] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 11/02/2011] [Indexed: 05/31/2023]
Abstract
Biomonitoring of effects in agricultural workers is necessary to assess the individual risk of handling pesticides. In this study, biochemical and haematological parameters were measured to evaluate the effects of exposure to these compounds in agricultural workers. The study was carried out in 110 workers and 97 control subjects. Several haematological and biochemical parameters were analysed. Assessment of haematological parameters revealed that the mean cell volume and haematocrit levels were significantly lower in workers than in controls (P=0.002 and 0.013, respectively), while mean corpuscular haemoglobin concentrations were higher in workers (P<0.001). There was also a significant inhibition of butyrylcholinesterase activity in workers compared with that in controls (P<0.001). Assessment of biochemical parameters further showed significantly higher activities of transferases, lactate dehydrogenase (P<0.001), alkaline phosphatase (ALP) (P=0.006) and creatine kinase (CK) (P<0.015), as well as higher levels of proteins (P<0.001), creatinine (P=0.001) and urea (P=0.001) in workers compared with controls, along with significantly higher uric acid levels (P=0.012). Furthermore, the number of years exposed to pesticides predicted higher activities of alanine aminotransferase, CK, ALP, as well as uric acid levels. Overall, chronic exposure to pesticides appeared to affect several biochemical parameters. These biomarkers seem to be indicative of adverse effects of pesticides in agricultural workers, confirming their use for routine monitoring of effects.
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Affiliation(s)
- Manel Araoud
- Laboratory of Biochemistry 05/UR/09-09, Faculty of Medicine of Monastir, Monastir, Tunisia.
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22
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Garat A, Cardenas CLL, Lionet A, Devos A, Glowacki F, Kenani A, Migot-Nabias F, Allorge D, Lo-Guidice JM, Broly F, Cauffiez C. Inter-ethnic variability of three functional polymorphisms affecting the IMPDH2 gene. Mol Biol Rep 2010; 38:5185-8. [PMID: 21181270 DOI: 10.1007/s11033-010-0668-z] [Citation(s) in RCA: 5] [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: 08/03/2010] [Accepted: 12/12/2010] [Indexed: 10/18/2022]
Abstract
Human type II inosine monophosphate dehydrogenase (IMPDH2) is a key enzyme in the purine nucleotide biosynthetic pathway and constitutes a pivotal biological target for immunosuppressant and antiviral drugs. Several Single Nucleotide Polymorphisms (SNP) affecting the IMPDH2 gene sequence have been reported with potential functional relevance and could impact drugs response. We aimed to determine the frequency of three of these polymorphisms, namely g.3375C>T (Leu(263)Phe), c.-95T>G and IVS7+10T>C, in Caucasians, Tunisians, Peruvians and Black Africans (Gabonese and Senegalese). The g.3375C>T and c.-95T>G polymorphisms are rare with a Minor Allele Frequency ≤1.0% in our populations, whereas the third variant, IVS7+10T>C, is more frequent and displays large interethnic variations, with an allelic frequency ranging from 14.6% in the French Caucasian population studied to less than 2% in Black African and Peruvian populations. This ethnic-related data might contribute to a better understanding of the variability in clinical outcome and/or dose adjustments of drugs that are IMPDH inhibitors such as mycophenolic acid.
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Affiliation(s)
- Anne Garat
- Equipe D'accueil 4483, Faculté de Médecine de Lille, Pôle Recherche, 1 place de Verdun, 59045 Lille Cedex, France
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Araoud M, Neffeti F, Douki W, Najjar MF, Kenani A. Paraoxonase 1 Correlates with Butyrylcholinesterase and Gamma Glutamyl Transferase in Workers Chronically Exposed to Pesticides. J Occup Health 2010; 52:383-8. [DOI: 10.1539/joh.o10017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Manel Araoud
- Laboratory of Biochemistry 05/UR/09‐09Faculty of Medicine of MonastirTunisia
- Laboratory of Biochemistry‐Toxicology, University Hospital Fattouma Bourguiba MonastirTunisia
| | - Fadoua Neffeti
- Laboratory of Biochemistry‐Toxicology, University Hospital Fattouma Bourguiba MonastirTunisia
| | - Wahiba Douki
- Laboratory of Biochemistry‐Toxicology, University Hospital Fattouma Bourguiba MonastirTunisia
| | - Mohamed Fadhel Najjar
- Laboratory of Biochemistry‐Toxicology, University Hospital Fattouma Bourguiba MonastirTunisia
| | - Abderraouf Kenani
- Laboratory of Biochemistry 05/UR/09‐09Faculty of Medicine of MonastirTunisia
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El Ayed M, Bonnel D, Longuespée R, Castelier C, Franck J, Vergara D, Desmons A, Tasiemski A, Kenani A, Vinatier D, Day R, Fournier I, Salzet M. MALDI imaging mass spectrometry in ovarian cancer for tracking, identifying, and validating biomarkers. Med Sci Monit 2010; 16:BR233-BR245. [PMID: 20671603] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND Among biomarkers, cancer-antigen 125 (CA-125) is the most studied. We propose an analytical tool to track ovarian carcinoma biomarkers, that is, the MALDI mass spectrometry imaging. MATERIAL/METHODS Ovarian carcinomas and benign ovaries were directly analyzed by MALDI-TOF-MS. After automatic profiling and mass spectrometry imaging analyses, hierarchical clustering based on principal component analysis in nonsupervised mode was carried out. On the same samples, preparations were performed to investigate peptides, then proteins, followed by high mass proteins, in an automatic profiling to specific signatures for diagnosis. Using tissue bottom-up strategy on tissue digestion, and mass spectrometry imaging after by shotgun sequencing by nalano-LC-IT-MS in MS/MS mode from washing samples from on tissue digested peptides, several biomarkers were found. RESULTS A list of specific biomarkers from the ovarian carcinoma regions was obtained and classified as proteins associated with cell proliferation, involved in immune response modulation, signaling to the cytoskeleton, and tumor progression. These specific biomarkers were then validated by immunocytochemistry using Tag-mass technology, cell biology, Western blot, and by PCR (using SKOV-3 ovarian epithelial cancer cells). A link between the immune regulation (innate immunity, tolerance) and virus cause is also discussed. CONCLUSIONS From the biomarkers identified, proteins involved in immune response modulation and cell proliferation have been pointed out in this study. Two new markers have been identified using such a strategy, that is, fragment C-terminal of the PSME1 (Reg-Alpha) and mucin-9.
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Affiliation(s)
- Mohamed El Ayed
- Université Nord de France, CNRS, MALDI Imaging Team, Laboratoire de Neuroimmunologie et Neurochimie Evolutives, Université Lille 1, Lille, France
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Aroui S, Mili D, Brahim S, De Waard M, Kenani A. Doxorubicin coupled to penetratin promotes apoptosis in CHO cells by a mechanism involving c-Jun NH2-terminal kinase. Biochem Biophys Res Commun 2010; 396:908-14. [PMID: 20457128 DOI: 10.1016/j.bbrc.2010.05.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 05/05/2010] [Indexed: 10/19/2022]
Abstract
Doxorubicin (Dox) has demonstrated potent activity in treating malignant lymphomas but its therapeutic efficacy is hampered by induction of cardiotoxicity. This side effect is related to the ability of the drug to generate reactive oxygen species in cells. Previously, we demonstrated that coupling Dox to penetratin (Pen), a cell penetrating peptide, represent a valuable strategy to overcome drug resistance in CHO cells. In the present study, we evaluated the consequences of the conjugation of Dox to Pen in term of apoptosis induction. When tested on CHO cells, Dox-Pen generated a typical apoptotic phenotype but at lower dose that needed for unconjugated Dox. Cell death induction was associated with chromatin condensation, caspase activation, Bax oligomerisation and release of cytochrome c. By using reactive oxygen species and c-jun NH2-terminal kinase (JNK) inhibitors, we prevented Dox- and Dox-Pen-induced CHO cell death. The chimeric soluble DR5 receptor that inhibits TRAIL induced cell death does not prevent Dox or Dox-Pen-induced cytotoxicity. These observations indicate that conjugation of Dox to cell penetrating peptide does not impair the ability of the drug to trigger cell death through activation of the intrinsic pathway involving c-Jun NH2-terminal kinase but could exhibit less toxic side effects and could warrant its use in clinic.
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Affiliation(s)
- Sonia Aroui
- Unité 05/UR/09-09, Mécanismes Moléculaires et Pathologies, Faculté de Médecine de Monastir, 5019 Monastir, Tunisia.
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Araoud M, Douki W, Najjar MF, Kenani A. Simple analytical method for determination of pesticide residues in human serum by liquid chromatography tandem mass spectrometry. J Environ Sci Health B 2010; 45:242-248. [PMID: 20390957 DOI: 10.1080/03601231003613666] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The aim of this study was to develop an analytical method for the determination of residues of organophosphorus and carbamate pesticides which are widely used in Tunisia. This method involves a liquid-liquid extraction procedure followed by liquid chromatography tandem mass spectrometry (LC/MS/MS) for the identification and quantification of compounds. Ionization of molecules was performed by the electrospray mode. Multiple reactions monitoring (MRM) was the acquisition mode used for the monitoring of two MS/MS transitions for each compound. The average recoveries obtained, at three different fortification levels, ranged between 65% and 106% for most of the pesticides studied, except for methamidophos (lower than 25%).The linearity of the method was in the range of 5 to 50 micro g/L with a correlation coefficient from 0.995 to 0.999, depending on the analyte. The estimated limit of detection and limit of quantification were 2 micro g/L and 5 micro g/L, respectively. The precision of the analytical procedure was satisfactory and the coefficients of variation, evaluated at three concentration levels were lower than 15% for most pesticides studied. The application of the method was investigated in a population of agricultural workers chronically exposed to various pesticides some of which, such as carbofuran, carbendazim, methomyl and pirimicarb, were detected in some serum samples.
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Affiliation(s)
- Manel Araoud
- Laboratory of Biochemistry, Faculty of Medicine of Monastir, Tunisia
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27
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Aroui S, Brahim S, Waard MD, Kenani A. Cytotoxicity, intracellular distribution and uptake of doxorubicin and doxorubicin coupled to cell-penetrating peptides in different cell lines: a comparative study. Biochem Biophys Res Commun 2009; 391:419-25. [PMID: 19914216 DOI: 10.1016/j.bbrc.2009.11.073] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2009] [Accepted: 11/10/2009] [Indexed: 12/01/2022]
Abstract
One of the major obstacles which are opposed to the success of anticancer treatment is the cell resistance that generally develops after administration of commonly used drugs. In this study, we try to overcome the tumour cell resistance of doxorubicin (Dox) by developing a cell-penetrating peptide (CPP)-anticancer drug conjugate in aim to enhance its intracellular delivery and that its therapeutic effects. For this purpose, two cell-penetrating peptides, penetratin (pene) and tat, derived from the HIV-1 TAT protein, were chemically conjugated to Dox. The cytotoxicity, intracellular distribution and uptake were accessed in CHO cells (Chinese Hamster Ovarian carcinoma cells), HUVEC (Human Umbilical Vein Endothelial Cells), differentiated NG108.15 neuronal cell and breast cancer cells MCF7drug-sensitive or MDA-MB 231 drug-resistant cell lines. The conjugates showed different cell killing activity and intracellular distribution pattern by comparison to Dox as assessed respectively by MTT-based colorimetric cellular cytotoxicity assay, confocal fluorescence microscopy and FACS analysis. After treatment with 3 microM with Dox-CPPs for 2h, pene increase the Dox cytotoxicity by 7.19-fold in CHO cells, by 11.53-fold in HUVEC cells and by 4.87-fold in MDA-MB 231 cells. However, cytotoxicity was decreased in NG108.15 cells and MCF7. Our CPPs-Dox conjugate proves the validity of CPPs for the cytoplasmic delivery of therapeutically useful molecules and also a valuable strategy to overcome drug resistance.
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Affiliation(s)
- Sonia Aroui
- Unité 05/UR/09-09, Mécanismes Moléculaires et Pathologies, Faculté de Médecine de Monastir, 5019 Monastir, Tunisie, Tunisia.
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Aroui S, Brahim S, De Waard M, Bréard J, Kenani A. Efficient induction of apoptosis by doxorubicin coupled to cell-penetrating peptides compared to unconjugated doxorubicin in the human breast cancer cell line MDA-MB 231. Cancer Lett 2009; 285:28-38. [DOI: 10.1016/j.canlet.2009.04.044] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Revised: 04/14/2009] [Accepted: 04/27/2009] [Indexed: 11/25/2022]
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Aroui S, Brahim S, Hamelin J, De Waard M, Bréard J, Kenani A. Conjugation of doxorubicin to cell penetrating peptides sensitizes human breast MDA-MB 231 cancer cells to endogenous TRAIL-induced apoptosis. Apoptosis 2009; 14:1352-65. [DOI: 10.1007/s10495-009-0397-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Quaranta S, Chevalier D, Allorge D, Lo-Guidice JM, Migot-Nabias F, Kenani A, Imbenotte M, Broly F, Lacarelle B, Lhermitte M. Ethnic differences in the distribution ofCYP3A5gene polymorphisms. Xenobiotica 2009; 36:1191-200. [PMID: 17162466 DOI: 10.1080/00498250600944300] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The genetic polymorphism affecting the CYP3A5 enzyme is responsible for interindividual and interethnic variability in the metabolism of CYP3A5 substrates. The full extent of the CYP3A5 genetic polymorphism was analysed in French Caucasian, Gabonese and Tunisian populations using a polymerase chain reaction-single strand conformational polymorphism (PCR-SSCP) strategy. In the three populations, eight, 17 and ten single nucleotide polymorphisms (SNPs), respectively, were identified, among which nine correspond to rare new mutations. Also identified were 16 alleles including eight new allelic variants. Significant differences were observed in the distribution of these alleles. Particularly, the frequency of the CYP3A5*3C null allele in French Caucasians (81.3%) and in Tunisians (80.0%) is higher than in the Gabonese population (12.5%) (p < 0.001). Considering the CYP3A5 genotypes of the tested individuals, only 10.4% of French Caucasians and 30.0% of Tunisians were identified as CYP3A5 expressors. In contrast, 90.0% of Gabonese subjects appear to express the CYP3A5 protein.
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Affiliation(s)
- S Quaranta
- Equipe d'Accueil 2679, Facultés de Médecine et de Pharmacie de Lille, Pôle Recherche, Lille, France.
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31
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Brahim-Loghmari S, Kenani A. [Apoptosis induced by bleomycin: influence of cellular models]. Arch Inst Pasteur Tunis 2009; 86:15-25. [PMID: 20707217] [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] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Bleomycins are a family of glycopeptides isolated from streptomyces verticillus and exhibiting antibiotic properties. They are commonly included in chemotherapy regimens used to treat patients with Hodgkin's or non Hodgkin's malignant lymphoma, squamous-cell carcinoma or germ-cell tumor. The chemical structure and action mode of bleomycin have been extensively studied, in contrast, the molecular mechanisms of the cytotoxic effects of bleomycin, in vivo, remain poorly understood. Recently, the apoptotics signaling pathway induce by bleomycin was the object of study, of many groups. In this sense, some studies suggested that bleomycin induce in some cells different apoptotic pathway in dose and time depending manner. The sensibility or the resistance to apoptosis induced by bleomycin may explain the sensibility or the resistance of tumor cells to bleomycin. The aim of this review was to describe the machinery of apoptosis induced by bleomycin in tumor cells.
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MESH Headings
- Antibiotics, Antineoplastic/chemistry
- Antibiotics, Antineoplastic/pharmacology
- Antibiotics, Antineoplastic/therapeutic use
- Apoptosis/drug effects
- Apoptosis/physiology
- Bleomycin/chemistry
- Bleomycin/pharmacology
- Bleomycin/therapeutic use
- Carcinoma, Squamous Cell/drug therapy
- Caspases/drug effects
- Caspases/physiology
- Dose-Response Relationship, Drug
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/physiology
- Fas-Associated Death Domain Protein/drug effects
- Fas-Associated Death Domain Protein/physiology
- Free Radicals/adverse effects
- Humans
- Lymphoma, Non-Hodgkin/drug therapy
- Mitochondria/drug effects
- Mitochondria/physiology
- Mitogen-Activated Protein Kinase Kinases/drug effects
- Mitogen-Activated Protein Kinase Kinases/physiology
- Models, Chemical
- Neoplasms, Germ Cell and Embryonal/drug therapy
- Signal Transduction/drug effects
- Signal Transduction/physiology
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Affiliation(s)
- S Brahim-Loghmari
- Laboratoire de biochimie, UR-09/09, Faculté de Médecine de Monastir 5019 Monastir, Tunisie
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Aroui S, Ram N, Appaix F, Ronjat M, Kenani A, Pirollet F, De Waard M. Maurocalcine as a non toxic drug carrier overcomes doxorubicin resistance in the cancer cell line MDA-MB 231. Pharm Res 2008; 26:836-45. [PMID: 19083085 DOI: 10.1007/s11095-008-9782-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Accepted: 11/04/2008] [Indexed: 11/27/2022]
Abstract
PURPOSE The aim of this study is to overcome tumour cell resistance that generally develops after administration of commonly used anti-cancer drugs, such as doxorubicin. METHODS Recently, cell penetrating peptides have been used for their ability to deliver non-permeant compounds into cells. One such cell penetrating peptide, maurocalcine, has been isolated from the venom of a Tunisian scorpion. Herein, we report the effects of doxorubicin covalently coupled to an analogue of maurocalcine on drug-sensitive or drug-resistant cell lines MCF7 and MDA-MB 231. RESULTS We demonstrated the in vitro anti-tumoral efficacy of the doxorubicin maurocalcine conjugate. On a doxorubicin-sensitive cancer cell line, the maurocalcine-conjugated form appears slightly less efficient than doxorubicin itself. On the contrary, on a doxorubicin-resistant cancer cell line, doxorubicin coupling allows to overcome the drug resistance. This strategy can be generalized to other cell penetrating peptides since Tat and penetratin show similar effects. CONCLUSION We conclude that coupling anti-tumoral drugs to cell penetrating peptides represent a valuable strategy to overcome drug resistance.
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Affiliation(s)
- Sonia Aroui
- INSERM, U836, Calcium Channels, Functions and Pathologies, BP 170, Grenoble Cedex 9, 38042, France
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33
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Cauffiez C, Pottier N, Tournel G, Lo-Guidice JM, Allorge D, Chevalier D, Migot-Nabias F, Kenani A, Broly F. CYP2A13 genetic polymorphism in French Caucasian, Gabonese and Tunisian populations. Xenobiotica 2008; 35:661-9. [PMID: 16316926 DOI: 10.1080/00498250500202171] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Since human CYP2A13 is expressed in the respiratory tract and is involved in the activation of tobacco-specific nitrosamines, some of the previously reported sequence variations may contribute to inter-individual and inter-ethnic differences in the susceptibility of tobacco-related tumorigenesis. The aim was to compare the frequencies of the 578C > T (Arg101Stop), 3375C > T (Arg257Cys) and 7520C > G (3'-untranslated region) mutations in several populations. The frequencies of the 578C > T polymorphism were 3.8, 0 and 1.0% in French Caucasians, Gabonese and Tunisians, respectively. In the same populations, the frequencies of the 3375C > T mutation were 0, 15.3 and 4.2%, respectively, whereas the frequencies of the 7520C > G mutation were 1.0, 20.8 and 7.3%, respectively. Marked inter-ethnic variations in CYP2A13 were identified and confirmed. These findings provide data for further studies that associate CYP2A13 haplotypes with an incidence of smoking-related tumours in respect of ethnicity.
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Affiliation(s)
- C Cauffiez
- Equipe d'accueil 2679, Faculté de Médecine de Lille, Pôle Recherche, Lille, France.
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Tournel G, Cauffiez C, Leclerc J, Billaut-Laden I, Allorge D, Chevalier D, Migot-Nabias F, Kenani A, Broly F, Lo-Guidice JM. CYP2F1 genetic polymorphism: identification of interethnic variations. Xenobiotica 2008; 37:1433-8. [PMID: 17943660 DOI: 10.1080/00498250701644403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Since human cytochrome P450 2F1 (CYP2F1) is predominantly expressed in lung tissue and is involved in the metabolism of various pneumotoxicants with potential carcinogenic effects, variations in the nucleotidic sequence of its gene may contribute to interindividual and interethnic differences in the susceptibility to lung tumorigenesis. The aim of the current study was to compare the frequency of a previously reported frameshift mutation, namely c.14_15insC, responsible for the synthesis of a severely truncated protein, between several populations of different ethnic origins. The frequencies of this polymorphism were 26.1, 51.6, 42.7 and 22.9% in French, Gabonese, Senegalese, and Tunisian population samples, respectively, thereby representing a substantial inter ethnic variation in the CYP2F1 gene. These findings provide data for further studies that investigate the potential association of CYP2F1 haplotypes with an incidence of lung cancer genesis in respect of ethnicity.
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Affiliation(s)
- G Tournel
- Equipe d'accueil 2679, Faculté de Médecine de Lille, Lille, France.
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35
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Brahim S, Bettaieb A, Kenani A. Deglycosylated bleomycin triggers apoptosis in laryngeal carcinoma cells in a caspase and reactive oxygen species independent manner. J Oral Pathol Med 2008; 37:352-7. [DOI: 10.1111/j.1600-0714.2007.00621.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kenani A, Bernier JL, Henichart JP. Synthesis and E.I.M.S. fragmentation analysis of [1,3-15N2] xanthine and [1,3-15N2] caffeine. J Labelled Comp Radiopharm 2006. [DOI: 10.1002/jlcr.2580360211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Bleomycin is a cytotoxic antibiotic that generates DNA double-strand breaks (DSB) and DNA single-strand breaks (SSB). It is possible to introduce known quantities of bleomycin molecules into cells. Low amounts kill the cells by a slow process termed mitotic cell death, while high amounts produce a fast process that has been termed pseudoapoptosis. We previously showed that these types of cell death are a direct consequence of the DSB generated by bleomycin. Here, we use deglyco-bleomycin, a bleomycin derivative lacking the carbohydrate moiety. Although this molecule performs the same nucleophilic attacks on DNA as bleomycin, we show that deglyco-bleomycin is at least 100 times less toxic to Chinese hamster fibroblasts than bleomycin. In fact, deglyco-bleomycin treatment results in apoptosis induction. In contrast, however, deglyco-bleomycin was found to generate almost exclusively SSB. Our results suggest that more than 150 000 SSB per cell are required to trigger apoptosis in Chinese hamster fibroblasts and that SSB are 300 times less toxic than DSB. Taken together with previous studies on bleomycin, our data demonstrates that cells can die by apoptosis, mitotic cell death, or pseudoapoptosis, depending on the number of DNA breaks and on the ratio of SSB to DSB.
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Affiliation(s)
- O Tounekti
- L.P.P.M.B., UMR 8532 CNRS, Institut Gustave Roussy, PR II 39, rue Camille Desmoulins, F-94805 Villejuif Cédex, France
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Mahdadi R, Kenani A, Pommery N, Pommery J, Hénichart JP, Lhermitte M. High-performance liquid chromatography assay of bleomycin in human plasma and rat hepatocytes in culture. Cancer Chemother Pharmacol 1991; 28:22-6. [PMID: 1710176 DOI: 10.1007/bf00684951] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A sensitive and rapid linear-gradient, ion-paired, reversed-phase high-performance liquid chromatography technique using fluorescence detection was developed to quantify bleomycin (BLM) metabolites in the plasma of patients undergoing BLM therapy and in rat hepatocytes that had previously been incubated with 5 x 10(-5) M BLM. We could detect about 70 ng/ml using this procedure. BLM metabolites were assayed in the supernatant fractions of precipitated human plasma and in pellets of rat hepatocytes. Metabolite concentrations were below the level of detection in human plasma samples. In hepatocyte pellets, metabolites such as deamido-BLM A2 and deamido-BLM B2 were detected, indicating that isolated rat hepatocytes in culture can metabolize BLM analogues to the corresponding deamido-BLMs. The high-performance liquid chromatography procedure developed during this work can be used to study the metabolism of BLM in cell culture systems.
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Affiliation(s)
- R Mahdadi
- Laboratoire de Toxicologie, Faculté de Pharmacie de Lille II, France
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Kenani A. Complexation des métaux, liaison à l'ADN et coupure de l'ADN par une molécule synthétique, AMBIGLU, un modèle simplifié pour l'étude de la bléomycine. Eur J Med Chem 1989. [DOI: 10.1016/0223-5234(89)90080-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
In order to elucidate the biological role of the sugar residue of the antitumor drug bleomycin, this was deglycosylated by beta-elimination under mild alkaline conditions, and by solvolysis with hydrogen fluoride. The latter procedure proved to be better because it led to the complete deglycosylation without modification of the peptide, thus allowing further biological investigations of this component.
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Bailly C, Kenani A, Helbecque N, Bernier JL, Houssin R, Hénichart JP. DNA-binding and DNA-cleaving properties of a synthetic model AGAGLU related to the antitumour drugs AMSA and bleomycin. Biochem Biophys Res Commun 1988; 152:695-702. [PMID: 2452634 DOI: 10.1016/s0006-291x(88)80094-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have previously described two synthetic models gathering a simplified model of the complexing part of Bleomycin (Blm) and the intercalating moiety of m-AMSA. These molecules, namely AGGA and AGAMGA, do not seem able to cleave DNA as Blm does. The present work is devoted to the study of a new derivative, AGAGLU, which includes in its structure a judiciously chosen connector between the two parts of the molecule. This compound, the chelating and DNA-binding properties of which are described here, has been shown to induce single-strand breakage of duplex DNA in a high level.
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Kenani A, Lohez M, Houssin R, Helbecque N, Bernier JL, Lemay P, Hénichart JP. Chelating, DNA-binding and DNA-cleaving properties of a synthetic model for bleomycin. Anticancer Drug Des 1987; 2:47-59. [PMID: 2452643] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have previously described a simplified model of the complexing part of bleomycin, namely methyl 2-(2-aminoethyl)-aminomethyl-pyridine-6-carboxyl-histidinate (AMPHIS), and disubstituted bithiazoles structurally related to the 'tripeptide S' moiety of bleomycin. The present work is devoted to the study of a new derivative, [3-[2-[2-(2-aminoethyl)-aminomethyl-pyridine-6-carboxyl-histidyl-3 -aminobutyryl-glycyl]-2',4-bithiazole-4-carboxamido]-propyl]- dimethylsulphonium iodide (AMBI-A2), which includes both AMPHIS and a judiciously chosen synthetic bithiazole. This compound, the synthesis of which is described here, has been shown to mimic the chelating and binding properties of the parent drug bleomycin A2, but to cleave DNA at higher concentration.
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Affiliation(s)
- A Kenani
- INSERM U 16, Département de Biochimie, Lille, France
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Bernier JL, Kenani A, Houssin R, Helbecque N, Lohez M, Hecquet B, Hénichart JP. Molecular interaction between bleomycin and amsacrine in the presence of cupric ions. J Inorg Biochem 1986; 27:271-85. [PMID: 2427651 DOI: 10.1016/0162-0134(86)80067-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The antineoplastic activity of m-AMSA [4'-(9-acridinylamino)-methanesulfon-m-anisidide] has been related to its ability to produce oxygenated free radical during its oxidation to a quinonimine form, in the presence of cupric ions. It has been demonstrated here that the rate of the oxidation is greatly increased by the addition of bleomycin (Blm), another antitumor agent, which is able to complex metallic ions. The catalytic role of Blm has been established on the basis of kinetics measurements and the occurrence of an intermediary ternary complex Blm-m-AMSA-Cu(II) has been demonstrated by circular dichroism and polarography experiments.
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Hénichart JP, Bernier JL, Houssin R, Lohez M, Kenani A, Catteau JP. Copper(II)- and iron(II)-complexes of methyl 2-(2-aminoethyl)-aminomethyl-pyridine-6-carboxyl-histidinate (AMPHIS), a peptide mimicking the metal-chelating moiety of bleomycin. An ESR investigation. Biochem Biophys Res Commun 1985; 126:1036-41. [PMID: 2579645 DOI: 10.1016/0006-291x(85)90289-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Methyl 2-(2-aminoethyl)-aminomethyl-pyridine-6-carboxyl-histidinate (AMPHIS), a synthetic analogue of the chelating part of bleomycin (BLM), has been studied for its metal binding properties. Electron spin resonance parameters of AMPHIS-Cu(II) and BLM-Cu(II) have been found to be closely similar likewise spectra of oxygen radicals spin-adducts induced by AMPHIS-Fe(II)-O2 and BLM-Fe(II)-O2 systems. Thus, AMPHIS could constitute a very useful tool for the study of BLM mode of action.
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