1
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Algharib AS, Shanab GML, Abdel-Ghaffar ARB, Ismail MA, Mohamed RH. Bithiophene derivative induced apoptosis and suppression of Akt pathway in mouse leukemic model. Tumour Biol 2022; 44:53-67. [DOI: 10.3233/tub-211538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND: Bithiophene derivatives show a promising anti-cancer potential. We previously showed that Bithienyl Fluorobenzamidine (BFB) has an anti-proliferative effect against several leukemia cell lines. Acute myeloid leukemia (AML) accounts for 18% of the total leukemia cases worldwide with heavier burden during the past 30 years. Therefore, the main aim remains the discovery of safe and effective medications. OBJECTIVE: The current research aims to investigate the anti-cancer efficacy of BFB and its effect on the apoptosis in the 7,12-Dimethylbenz[a]anthracene (DMBA) induced AML in mice. METHODS: AML was induced in mice by DMBA and then treated by 2 different doses of BFB. After BFB treatment, the hematological and histological pattern changes was examined. Furthermore, the molecular effect of BFB on apoptosis, cell cycle markers and Protein kinase B (Akt) pathway was examined using qPCR, Western blotting and ELISA. RESULTS: BFB treatment ameliorates leukemia histological and hematological markers significantly, despite non-significant changes in normal mice. This improvement exhibits cell cycle arrest and apoptosis induction, represented by elevation of tp53/p53, p21/p21, Caspase3 and downregulation of ckk1/Cdk1 in the bone marrow, as well as Akt pathway suppression. CONCLUSIONS: Our results establishes BFB as a promising therapeutic candidate against AML through cell cycle arrest, apoptosis induction and Akt pathway modulation.
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Affiliation(s)
- Ali Samy Algharib
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | | | | | - Mohamed Ahmed Ismail
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Rania Hassan Mohamed
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
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2
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Khan A, Khan A, Shal B, Aziz A, Ahmed MN, Khan S. N-(benzylidene)-2-((2-hydroxynaphthalen-1-yl)diazenyl)benzohydrazides (1-2) (NCHDH and NTHDH) attenuate DMBA-induced breast cancer via Nrf2/NF-κB/apoptosis signaling. Fundam Clin Pharmacol 2022; 36:879-897. [PMID: 35259284 DOI: 10.1111/fcp.12775] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/14/2022] [Accepted: 02/28/2022] [Indexed: 12/11/2022]
Abstract
The present study investigated the effect of the N-(benzylidene)-2-((2-hydroxynaphthalen-1-yl)diazenyl)benzohydrazides (1-2) (NCHDH and NTHDH) against breast cancer using in vitro and in vivo approaches. The NCHDH and NTHDH significantly inhibited the growth of the MCF-7 cells using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. The NCHDH and NTHDH treatment significantly inhibited the tumor size, tumor weight, and tumor volume, while it enhanced the survival and tumor free survival rate following 7,12-Dimethylbenz[a]anthracene (DMBA)-induced breast cancer. The NCHDH and NTHDH markedly attenuated the oxidative stress markers and induced the antioxidant level. The enzyme-linked immunosorbent assay (ELISA) showed significant reduction in the inflammatory cytokines production compared with the DMBA control. The NCHDH and NTHDH treatment significantly improved the histological features using hematoxylin and eosin (H and E) staining, Masson's trichrome, PAS (periodic acid Schiff), and Toluidine blue staining compared with the DMBA-induced group. The NCHDH and NTHDH treatment improved the hematological and serological parameters following DMBA-induced breast tumor compared with DMBA-induced group. Furthermore, the NCHDH and NTHDH treatment significantly enhanced the antioxidants signaling proteins such as nuclear factor erythroid 2-related factor 2 (Nrf2) and Heme oxygenase 1 (HO-1). The NCHDH and NTHDH enhanced the inhibitor of NF-κB (IκB) level, while it attenuated the NF-κB level. Similarly, the NCHDH and NTHDH showed marked increase in the apoptosis proteins such as Caspase-3, Caspase-9, and Bcl-2 Associated X-protein (Bax), while it inhibited the B-cell lymphoma 2 (Bcl-2) expression. In conclusion, the NCHDH and NTHDH significantly improved the DMBA-induced breast cancer via attenuating oxidative stress and inflammatory cytokines.
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Affiliation(s)
- Ashrafullah Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.,Faculty of Pharmaceutical Sciences, Abasyn University, Peshawar, Pakistan
| | - Adnan Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Bushra Shal
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.,Faculty of Health Sciences, IQRA University, Islamabad Campus, (Chak Shahzad), Islamabad, Pakistan
| | - Abdul Aziz
- Department of Chemistry, The University of Azad Jammu and Kashmir Muzaffarabad, Muzaffarabad, Pakistan
| | - Muhammad Naeem Ahmed
- Department of Chemistry, The University of Azad Jammu and Kashmir Muzaffarabad, Muzaffarabad, Pakistan
| | - Salman Khan
- Pharmacological Sciences Research Lab, Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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3
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El-Masry OS, Alhawaj HA, Fagere MO, Owaidah AY, Alamri A, Alsamman K. Oral Intragastric DMBA Administration Induces Acute Lymphocytic Leukemia and Other Tumors in Male Wistar Rats. J Exp Pharmacol 2022; 14:87-96. [PMID: 35241938 PMCID: PMC8887968 DOI: 10.2147/jep.s349047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 02/11/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Omar S El-Masry
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Hussain Abdullah Alhawaj
- Animal House Facility, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Muaz O Fagere
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Amani Y Owaidah
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Aisha Alamri
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
| | - Khaldoon Alsamman
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia
- Correspondence: Khaldoon Alsamman, Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, 31441, Saudi Arabia, Email
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4
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Ahmeda A, Zangeneh MM, Zangeneh A. Green formulation and chemical characterization of
Lens culinaris
seed aqueous extract conjugated gold nanoparticles for the treatment of acute myeloid leukemia in comparison to mitoxantrone in a leukemic mouse model. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ahmad Ahmeda
- Department of Basic Medical SciencesCollege of Medicine, QU Health, Qatar University Doha Qatar
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Akram Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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5
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Ahmeda A, Zangeneh A, Zangeneh MM. Green synthesis and chemical characterization of gold nanoparticle synthesized using
Camellia sinensis
leaf aqueous extract for the treatment of acute myeloid leukemia in comparison to daunorubicin in a leukemic mouse model. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5290] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ahmad Ahmeda
- Department of Basic Medical Sciences, College of MedicineQU Health, Qatar University Doha Qatar
| | - Akram Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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6
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Ahmeda A, Zangeneh MM. Novel green synthesis of
Boswellia serrata
leaf aqueous extract conjugated gold nanoparticles with excellent anti‐acute myeloid leukemia property in comparison to mitoxantrone in a leukemic mice model: Introducing a new chemotherapeutic drug. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5344] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ahmad Ahmeda
- Department of Basic Medical Sciences, College of Medicine, QU HealthQatar University Doha Qatar
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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7
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Ahmeda A, Zangeneh A, Zangeneh MM. Preparation, formulation, and chemical characterization of silver nanoparticles using
Melissa officinalis
leaf aqueous extract for the treatment of acute myeloid leukemia
in vitro
and
in vivo
conditions. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5378] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ahmad Ahmeda
- Department of Basic Medical Sciences, College of Medicine, QU HealthQatar University Doha Qatar
| | - Akram Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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8
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Hemmati S, Zamenian T, Delsooz N, Zangeneh A, Mahdi Zangeneh M. Preparation and synthesis a new chemotherapeutic drug of silver nanoparticle‐chitosan composite; Chemical characterization and analysis of their antioxidant, cytotoxicity, and anti‐acute myeloid leukemia effects in comparison to Daunorubicin in a leukemic mouse model. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5274] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Saba Hemmati
- Department of ChemistryPayame Noor University Tehran Iran
| | - Tara Zamenian
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical ChemistryTehran Medical Sciences, Islamic Azad University Tehran Iran
| | - Newsha Delsooz
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical ChemistryTehran Medical Sciences, Islamic Azad University Tehran Iran
| | - Akram Zangeneh
- Department of Clinical SciencesFaculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Mohammad Mahdi Zangeneh
- Department of Clinical SciencesFaculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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9
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Hemmati S, Joshani Z, Zangeneh A, Zangeneh MM. Biosynthesis and chemical characterization of polydopamine‐capped silver nanoparticles for the treatment of acute myeloid leukemia in comparison to doxorubicin in a leukemic mouse model. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5277] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Saba Hemmati
- Department of ChemistryPayame Noor University Tehran Iran
| | - Zeinab Joshani
- Department of ChemistryPayame Noor University Tehran Iran
| | - Akram Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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10
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Hemmati S, Joshani Z, Zangeneh A, Zangeneh MM. Green synthesis and chemical characterization of
Thymus vulgaris
leaf aqueous extract conjugated gold nanoparticles for the treatment of acute myeloid leukemia in comparison to doxorubicin in a leukemic mouse model. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5267] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Saba Hemmati
- Department of ChemistryPayame Noor University Tehran Iran
| | - Zeinab Joshani
- Department of ChemistryPayame Noor University Tehran Iran
| | - Akram Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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11
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Zangeneh MM. Green synthesis and formulation a modern chemotherapeutic drug of
Spinacia oleracea
L.
leaf aqueous extract conjugated silver nanoparticles; Chemical characterization and analysis of their cytotoxicity, antioxidant, and anti‐acute myeloid leukemia properties in comparison to doxorubicin in a leukemic mouse model. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5295] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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12
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Zangeneh MM, Zangeneh A. Novel green synthesis of
Hibiscus sabdariffa
flower extract conjugated gold nanoparticles with excellent anti‐acute myeloid leukemia effect in comparison to daunorubicin in a leukemic rodent model. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5271] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mohammad Mahdi Zangeneh
- Department of Clinical SciencesFaculty of Veterinary Medicine, Razi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Akram Zangeneh
- Department of Clinical SciencesFaculty of Veterinary Medicine, Razi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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13
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Ahmed ESA, Ahmed NH, Medhat AM, Said UZ, Rashed LA, Abdel Ghaffar ARB. Mesenchymal stem cells targeting PI3K/AKT pathway in leukemic model. Tumour Biol 2019; 41:1010428319846803. [PMID: 31018830 DOI: 10.1177/1010428319846803] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Mesenchymal stem cells have therapeutic properties that are related to their potentials for trans-differentiation, immunomodulation, anti-inflammatory, inhibitory effect on tumor proliferation, and induction of apoptosis. This study was performed to analyze the role of mesenchymal stem cells as an alternative for cellular signaling growth factors involved in the pathogenesis of leukemogenesis in rats. Treatment of rats with 7,12-dimethyl benz [a] anthracene induced leukemogenesis appeared as a significant decrease in hematological parameters with concomitant significant increase in bone marrow oxidative and inflammatory indices (transforming growth factor beta and interleukin-6) in comparison with normal groups. On the contrary, Western immunoblotting showed a significant increase in the signaling growth factors: PI3K, AKT, mTOR proteins and a significant decrease in PTEN in 7,12-dimethyl benz [a] anthracene-treated group. In addition, a significant increase in the transcript levels of B cell lymphoma-2 protein gene in the 7,12-dimethyl benz [a] anthracene group, while that of C-X-C motif chemokine receptor-4 and B cell lymphoma-2 protein associated x-protein were significantly downregulated compared to controls. Meanwhile, therapeutic mesenchymal stem cells treatment predict a significant improvement versus 7,12-dimethyl benz [a] anthracene group through the modulation of growth factors that confront bone marrow dysplasia. In the same direction treatment of 7,12-dimethyl benz [a] anthracene group with mesenchymal stem cells, it induced apoptosis and increased the homing efficacy to bone marrow. In conclusion, mesenchymal stem cells improve hematopoiesis and alleviate inflammation, and modulated PI3K/AKT signaling pathway contributed to experimental leukemogenesis.
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Affiliation(s)
- Esraa S A Ahmed
- 1 National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - Neamat H Ahmed
- 1 National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - Amina M Medhat
- 2 Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Ussama Z Said
- 1 National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - Laila A Rashed
- 3 Biochemistry & Molecular Biology Department, Medicine Faculty, Cairo University, Cairo, Egypt
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14
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Tyrosine Kinase Inhibitor Imatinib Mesylate Alters DMBA-Induced Early Onco/Suppressor Gene Expression with Tissue-Specificity in Mice. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8670398. [PMID: 30882001 PMCID: PMC6383434 DOI: 10.1155/2019/8670398] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 12/28/2018] [Accepted: 01/13/2019] [Indexed: 12/30/2022]
Abstract
Tyrosine kinases play crucial roles in cellular development and tumorigenesis. Tyrosine kinase inhibitors (TKIs) are effective and widely used drug molecules in targeted cancer therapies. Altered expressions of protooncogenes and tumor suppressor genes after DMBA (7,12-dimethylbenz[a]anthracene) treatment have been described as early markers of tumor induction; however their tissue-specific effects remain still unclear. Our study was aimed at examining the short-term possible antineoplastic and chemopreventive effects of a TKI compound (imatinib mesylate) on a DMBA-induced mouse tumor model. In addition, we also investigated the tissue-specific expressions of Hras, Kras, Myc, and Trp53 genes in the brain, bone marrow, spleen, liver, abdominal lymph nodes, thymus, lungs, and kidneys, respectively. 24 hours after the imatinib mesylate injection, we observed significant Kras downregulation in the bone marrow and lung of the DMBA-treated mice. Moreover, the mRNA expression of Myc was also found to be decreased significantly in the spleen. Interestingly, while Trp53 expression was significantly increased in the lung, it was decreased in the other tissues. However, there was also a tendency in the decreased Myc level in the bone marrow, brain, kidneys, lungs, and lymph nodes and in the decreased Hras level in the bone marrow, kidneys, and lungs, although no significant differences were observed. Our findings indicate rapid tissue-specific impact of imatinib mesylate on DMBA-induced gene expression in vivo, supporting the chemopreventive potential of imatinib mesylate in cancer.
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15
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Prevention of carcinogenesis and metastasis by Artemisinin-type drugs. Cancer Lett 2018; 429:11-18. [DOI: 10.1016/j.canlet.2018.05.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 05/02/2018] [Accepted: 05/03/2018] [Indexed: 12/20/2022]
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16
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Khan MKA, Akhtar S, Arif JM. Development of In Silico Protocols to Predict Structural Insights into the Metabolic Activation Pathways of Xenobiotics. Interdiscip Sci 2017; 10:329-345. [PMID: 28527150 DOI: 10.1007/s12539-017-0237-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 05/05/2017] [Accepted: 05/09/2017] [Indexed: 11/26/2022]
Abstract
To establish in silico model to predict the structural insight into the metabolic bioactivation pathway of xenobiotics, we considered two specific and one non-specific mammary procarcinogen [e.g., dibenzo[a,l]pyrene (DBP), 7,12-dimethylbenz[a]anthracene (DMBA), and benzo[a]pyrene (BP)]. The CYP1A1, 1B1, 2C9, 1A2 and 2B6 reported in wet-lab studies to actively metabolize DBP also showed strong binding energies (kcal/mol) of -11.50, -10.67, -10.37, -9.76 and -9.72, respectively, with inhibition constants ranging between 0.01 and 0.08 µM. The CYP3A4 depicted minimum binding energy (-9.51 kcal/mol) which is in agreement with the wet-lab reports. Further, relatively better affinity of CYP1A1 and CYP1B1 with the dibenzo[a,l]pyrene-11,12-diol (DBPD) might be indicative of their involvement in carcinogenicity of parent compound. Like DBP, BP (-10.13 kcal/mol, Ki: 0.04 µM) and BP-diols (BPD) (-9.01 kcal/mol, Ki: 0.25 µM) observed plausible binding with CYP1A1 supporting to the reported data that emphasize the major contribution of CYP1A1 in the activation of similar procarcinogens and mutagens. Likewise, in silico results further highlighted the CYP1A1 as key player in bioactivation of DMBA to its carcinogenic metabolites. In case of PhIP metabolism, strong binding interaction predicted with CYP1A1 (-9.63 kcal/mol) rather than CYP1A2 (-8.84 kcal/mol). Dissimilarity in the binding affinity of PhIP might be due to its basic scaffold. Further, molecular dynamics (MD) simulation of 10 ns has been revealed that docked complexes of CYP1A1 with DBP, DMBA and BP are comparatively more stable than the complex of PhIP. Moreover, the current findings might be valuable as reference model in prediction and elucidation of the approximate metabolic pathway of xenobiotics.
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Affiliation(s)
- M Kalim A Khan
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, 226026, India
| | - Salman Akhtar
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, 226026, India
| | - Jamal M Arif
- Department of Biosciences, Faculty of Applied Sciences, Integral University, Kursi Road, P.O. Box Basha, Lucknow, 226026, India.
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17
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Sex differences and pathology status correlated to the toxicity of some common carcinogens in experimental skin carcinoma. Food Chem Toxicol 2016; 95:149-58. [PMID: 27417450 DOI: 10.1016/j.fct.2016.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 06/23/2016] [Accepted: 07/10/2016] [Indexed: 12/27/2022]
Abstract
The increased susceptibility of men as compared to women to develop different types of cancer, including skin cancer, is well known; however, the mechanisms involved in this process are still a matter of debate. This study aimed to obtain animal models of photo-chemically-induced skin carcinogenesis by exposure to ultraviolet radiation B (UVB) coupled with topical applications of a tumor initiator (7,12-dimethylbenz(a)anthracene, DMBA) and a tumor promoter (12-O-tetradecanoylphorbol-13-acetate, TPA) in order to characterize the gender disparities regarding the skin lesions developed by the female and male SKH-1 hairless mice included in this study. Histopathological analysis confirmed the presence of malignant lesions in both cases, in female and male mice, following chronic exposure (24 weeks) to the noxious effects of the carcinogens applied, whereas the tumors in male mice had a more severe histological grade. In addition, tumor incidence, size and multiplicity were higher in male mice than in female mice.
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18
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Trencsenyi G, Nagy G, Kahlik B, Nemeth E, Kertai P, Kiss A, Banfalvi G. Lymphoid metastasis of rat My2/De leukemia. Leuk Res 2014; 38:586-93. [PMID: 24636336 DOI: 10.1016/j.leukres.2014.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Revised: 01/23/2014] [Accepted: 02/15/2014] [Indexed: 10/25/2022]
Abstract
By grafting spontaneous leukemia tumor cells, the myeloid My2/De leukemia rat model was established. Death was caused by impaired functions of heavily infiltrated organs. In vitro culturing of tumor cells, blood and bone marrow counts and cytochemic reactions indicated the leukemic the origin resembling human myeoloblastic leukemia. Metastatic spread was followed after i.v. and i.p. injection, and by implantation of leukemia cells under the renal capsule of rats. Primary tumor and metastasis formation was visualized by (18)FDG or (11)C-methionine administration and MiniPET. The accumulation of radiotracers was measured in different organs and expressed as Differential Absorption Ratios (DARs). Subrenal implantation of My2/De cells resulted in their appearance in other abdominal organs and in parathymic lymph nodes. The release of tumor cells from the primary kidney to the peritoneum was mimicked by the i.p. administration of ink particles. Ink particles deposited in the abdominal organs and in the thoracal lymph nodes, preferentially in parathymic lymph nodes, confirming the notion of lymphatic spread of metastasis.
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Affiliation(s)
- G Trencsenyi
- Department of Nuclear Medicine, University of Debrecen, Hungary
| | - G Nagy
- Department of Microbial Biotechnology and Cell Biology, University of Debrecen, Hungary
| | - B Kahlik
- Department of Microbial Biotechnology and Cell Biology, University of Debrecen, Hungary
| | - E Nemeth
- Department of Nuclear Medicine, University of Debrecen, Hungary
| | - P Kertai
- Institute of Preventive Medicine, University of Debrecen, Hungary
| | - A Kiss
- Department of Internal Medicine, University of Debrecen, Hungary
| | - G Banfalvi
- Department of Microbial Biotechnology and Cell Biology, University of Debrecen, Hungary.
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19
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Trencsenyi G, Nagy G, Bako F, Kertai P, Banfalvi G. Incomplete chromatin condensation in enlarged rat myelocytic leukemia cells. DNA Cell Biol 2011; 31:470-8. [PMID: 21942442 DOI: 10.1089/dna.2011.1374] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The distinguishable morphologic features of nuclei of acute myelogenous leukemia cells with enlarged size and finely distributed nuclear chromatin indicate incomplete chromosome condensation that can be related to elevated gene expression. To confirm this, interphase chromosome structures were studied in exponentially growing rat myelomonocytic leukemia 1 cells isolated at the University of Debrecen (My1/De cells). This cell line was established from primary rat leukemia chemically induced by 7,12-dimethylbenz[a]anthracene treatment. The enlarged nuclei of My1/De cells allowed improved fluorescent visualization of chromosomal structures. Increased resolution revealed major interphase intermediates consisting of (1) veil-like chromatin, (2) chromatin ribbon, (3) chromatin funnel, (4) chromatin bodies, (5) elongated prechromosomes, (6) seal-ring, spiral shaped, and circular chromosomal subunits, (7) elongated, bent, u- and v-shaped prechromosomes, and (8) metaphase chromosomes. Results confirmed the existence of the chromatin funnel, the first visible interphase chromosome generated by the supercoiling of the chromatin ribbon. Other intermediates not seen previously included the spiral subunits that are involved in the chromonemic folding of metaphase chromosomes. The existence of spiral subunits favors the helical coil model of chromosome condensation. Incomplete chromatin condensation in leukemia cells throughout the cell cycle is an indication of euchromatization contributing to enhanced gene expression and is regarded as a leukemic factor.
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Affiliation(s)
- Gyorgy Trencsenyi
- Department of Microbial Biotechnology and Cell Biology, University of Debrecen, Debrecen, Hungary
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Abstract
Childhood leukemia is the most common cancer among children, representing 31% of all cancer cases occurring in children younger than the age of 15 years in the USA. There are only few known risk factors of childhood leukemia (sex, age, race, exposure to ionizing radiation, and certain congenital diseases, such as Down syndrome and neurofibromatosis), which account for only 10% of the childhood leukemia cases. Several lines of evidence suggest that childhood leukemia may be more due to environmental rather than genetic factors, although genes may play modifying roles. Human and animal studies showed that the development of childhood leukemia is a two-step process that requires a prenatal initiating event(s) plus a postnatal promoting event(s). Despite a substantial public health effort to reduce cigarette smoking, a large proportion of the US and world population still smoke. Tobacco smoke contains at least 60 known human or animal carcinogens, with the major chemical classes being volatile hydrocarbons, aldehydes, aromatic amines, polycyclic aromatic hydrocarbons, and nitrosamines; among these chemicals, only benzene is an established leukemogen, although other chemicals in the tobacco could interact with one another in a complex way to jointly attain a significant carcinogenic effect on the development of leukemia. Although tobacco smoke is an established risk factor for adult myeloid leukemia, the studies of association between parental smoking and childhood leukemia have produced inconsistent results. The majority of the studies on maternal smoking and childhood leukemia did not find a significant positive association and some even reported an inverse association. In contrast to studies of maternal smoking, studies of paternal smoking and childhood leukemia reported more positive associations but only by less than half of the studies. Future directions to be considered for improving the study of parental smoking and childhood leukemia are: 1) consider all sources of benzene exposure in addition to smoking, including occupational exposure and traffic exhausts; 2) childhood leukemia is a heterogeneous disease and epidemiologic studies of childhood leukemia can be greatly improved by grouping childhood leukemia into more homogeneous groups by molecular techniques (e.g., structural and numerical chromosomal changes); and 3) assess gene-environment interaction. It is hoped that through the continual effort, more will be uncovered regarding the causes of childhood leukemia. In the meantime, more effort should be spent on educating the parents to quit smoking, because parental smoking is known to affect many childhood diseases (e.g., asthma, respiratory tract infection, and otitis media) that are much more prevalent than childhood leukemia.
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Affiliation(s)
- Jeffrey S Chang
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
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Gao J, Mitchell LA, Lauer FT, Burchiel SW. p53 and ATM/ATR regulate 7,12-dimethylbenz[a]anthracene-induced immunosuppression. Mol Pharmacol 2007; 73:137-46. [PMID: 17925458 DOI: 10.1124/mol.107.039230] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The tumor suppressor protein p53 is a transcription factor that regulates apoptotic responses produced by genotoxic agents. Previous studies have reported that 7,12-dimethylbenz[a]anthracene (DMBA)-induced bone marrow toxicity is p53-dependent in vivo. Our laboratory has shown that DMBA-induced splenic immunosuppression is CYP1B1- and microsomal epoxide hydrolase (mEH)-dependent, demonstrating that the DMBA-3,4-dihydrodiol-1,2-epoxide metabolite (DMBA-DE) is probably responsible for DMBA-induced immunosuppression. DMBA-DE is known to bind to DNA leading to strand breaks. Therefore, we postulated that a p53 pathway is required for DBMA-induced immunosuppression. In the present studies, our data show that activated p53 accumulated in the nuclei of spleen cells in WT and AhR-null mice after DMBA treatment, but not in CYP1B1-null or mEH-null mice. These results suggest that DMBA activates p53 in a CYP1B1- and mEH-dependent manner in vivo but is not AhR-dependent. Ataxia telangiectasia mutated (ATM) and ATM and Rad3-related protein (ATR) are sensors for DNA damage that signal p53 activation. Increased ATM, phospho-ATM (Ser(1987)), and ATR levels were observed after DMBA treatment in WT, p53-null, and AhR-null mice but not in CYP1B1-null or mEH-null mice. Therefore, ATM and ATR seem to act upstream of p53 as sensors of DNA damage. Ex vivo immune function studies demonstrated that DMBA-induced splenic immunosuppression is p53-dependent at doses of DMBA that produce immunosuppression in the absence of cytotoxicity. High-dose DMBA cytotoxicity may be associated with p53-independent pathways. This study provides new insights into the requirement of genotoxicity for DMBA-induced immunosuppression in vivo and highlights the roles of ATM/ATR in signaling p53.
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Affiliation(s)
- Jun Gao
- College of Pharmacy, 1 University of New Mexico, MSC09 5360, Albuquerque, NM 87131, USA
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Gutmann DH, Hunter-Schaedle K, Shannon KM. Harnessing preclinical mouse models to inform human clinical cancer trials. J Clin Invest 2006; 116:847-52. [PMID: 16585951 PMCID: PMC1421367 DOI: 10.1172/jci28271] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The urgent need for better cancer treatments has stimulated interest in employing small-animal models to evaluate potential drug therapies. Robust mouse models of many human cancers have been generated using sophisticated technologies for engineering germ-line mutations. As we enter into an age of targeted therapeutics, these strains provide novel platforms for validating new anticancer drugs, assessing therapeutic index, identifying surrogate markers of tumor progression, and defining epigenetic and environmental influences on tumorigenesis.
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Affiliation(s)
- David H Gutmann
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
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Blanco GA, Cooper EL. Immune systems, geographic information systems (GIS), environment and health impacts. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2004; 7:465-480. [PMID: 15586880 DOI: 10.1080/10937400490512375] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Exposure to dioxins, polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) has been related to alterations in cellular and humoral immune responses in both adaptive and innate immune systems of most animal species. These compounds share a common signaling mechanism to exert their effects on cells of the immune system, which includes the aryl-hydrocarbon receptor (AhR) and the AhR nuclear translocator (ARN). Recently, the interference of AhR-ARNT with the nuclear factor (NF)-kappaB signaling pathway has been proposed as a critical event in the adverse effects on the immune system. Studies on the effects of these AhR-ARNT-related toxicants on the immune system of higher and lower phylum animals and knowledge of intracellular mechanisms of toxicity may contribute to development of biomarkers of ecotoxicant exposure and effects. Biomarkers of this kind allow sampling over extended geographic areas, in several sentinel species, including wildlife animals, and facilitate the building of risk models and risk maps of environmentally induced diseases. On the basis of location, biomarker sampled data obtained through evaluation of ecotoxicant exposure and effects on the immune system in sentinel species can be further integrated and analyzed together with other sources of environmental geographic information, or human population health data, by means of geographic information systems (GIS). The spatial analysis capability of GIS can help to evaluate the complex relationships of overlaid information and to identify areas with high risk indices or "hot spots." This integrative approach can be useful in studies contributing to support environmental and health-related policies and regulations.
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Affiliation(s)
- Guillermo A Blanco
- Department of Immunology, IDEHU-National Research Council (CONICET), School of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina.
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Oiso N, Riddle SR, Serikawa T, Kuramoto T, Spritz RA. The rat Ruby ( R) locus is Rab38: identical mutations in Fawn-hooded and Tester-Moriyama rats derived from an ancestral Long Evans rat sub-strain. Mamm Genome 2004; 15:307-14. [PMID: 15112108 DOI: 10.1007/s00335-004-2337-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2003] [Accepted: 12/02/2003] [Indexed: 10/26/2022]
Abstract
Hermansky-Pudlak syndrome (HPS) is a group of rare, recessive disorders in which oculocutaneous albinism, progressive pulmonary fibrosis, bleeding diathesis, and other abnormalities result from defective biogenesis of multiple cytoplasmic organelles. Seven different HPS genes are known in humans; in mouse, at least 16 loci are associated with HPS-like mutant phenotypes. In the rat, only two HPS models are known, Fawn-hooded (FH) and Tester Moriyama (TM), non-complementing strains in which HPS-like hypopigmentation and platelet storage pool deficiency result from a mutation of the Ruby (red eyed dilution; R) locus on Chromosome (Chr) 1. We have identified the R locus as the Rab38 gene, establishing that rat R is homologous to mouse chocolate ( cht). Further, we show that FH and TM rats have identical Rab38 Met1Ile mutations, occurring on an identical Chr 1 marker allele haplotype, indicating that these two strains derive from a common ancestor. This ancestor appears to have been a sub-strain of the outbred Long Evans (LE) strain, and several modern LE sub-strains carry the Rab38 Met1Ile R mutation on the same Chr 1 marker haplotype. These findings have significant implications for the many past and ongoing studies that involve the FH and LE-derivative rat strains. Hermansky-Pudlak syndrome (HPS; MIM 203300) is a group of autosomal recessive diseases in which oculocutaneous albinism (OCA), progressive and fatal pulmonary fibrosis, and bleeding diathesis due to platelet storage pool deficiency result from defects in the biogenesis of specific cytoplasmic organelles and granules: melanosomes, lysosomes, and platelet dense granules. In humans, seven different HPS genes are known. In the mouse, at least 16 loci associated with HPS-like mutant phenotypes are known, seven of which are homologous to the human HPS loci.
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Affiliation(s)
- Naoki Oiso
- Human Medical Genetics Program, University of Colorado Health Sciences Center, 4200 E. 9th Ave., B161, Denver, Colorado 80262, USA
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Lessard M, Gervais C, Struski S. [Chromosomal abnormalities in secondary myelodysplastic syndromes and leukemias]. PATHOLOGIE-BIOLOGIE 2003; 51:356-65. [PMID: 12927893 DOI: 10.1016/s0369-8114(03)00081-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Secondary leukemias group essentially together myelodysplastic syndromes and acute leukemias, therapy-related (chemo- or radio-), or consecutive to environmental factors. It's now proven that some recurrent abnormalities are associated with effects of therapeutic agents, as -5/del(5q), -7/del(7q) linked to alkylating agents, or 11q23 and 21q22 abnormalities linked to inhibitors of Topoisomerase II. Even if important differences between secondary and "de novo" forms exist, the discrimination between these 2 categories is not always obvious: many common chromosomal abnormalities, "de novo" leukemias in older patients having characteristics close to those of postalkylating leukemias, neonatal forms possibly secondary to maternal affect. Recent studies identified some others chromosomal abnormalities in the secondary leukemias and confirmed the poor prognosis of these hemopathies. This review sums up criterions, circumstances and cytogenetic abnormalities.
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Affiliation(s)
- M Lessard
- Laboratoire d'hématologie, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, avenue Molière, 67000 Strasbourg, France.
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