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Proskurnina EV, Fedorova MV, Sozarukova MM, Mitichkin AE, Panteleev IV, Svetlov EV. Microsomal reductase activity in patients with thyroid neoplasms. Endocrine 2021; 72:735-743. [PMID: 33011882 DOI: 10.1007/s12020-020-02513-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/23/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Cytochrome b5-reductase (CYB5R) and cytochrome P450 reductase (CYPOR) are important for cell metabolism; however, their role in thyroid hormonogenesis and carcinogenesis has not been elucidated yet. The activity of CYB5R correlates with the metastasis in breast cancer, but there are no similar studies for CYB5R and CYPOR for thyroid tumors. The aim of this study was to elucidate the activity of CYB5R and CYPOR changes in benign euthyroid and hyperthyroid neoplasms and in papillary thyroid cancer for their potential application as biomarkers for diagnosis and prognosis prediction of thyroid cancer. METHODS Thirty-six patients with thyroid diseases participated in the study. The control euthyroid nodular goiter group included ten patients; the thyrotoxic nodular or diffuse goiter group included 14 patients; the papillary thyroid cancer T1-2N0-1M0 (PTC) group included 12 patients. The activity of CYB5R and CYPOR was assessed with lucigenin-enhanced chemiluminescence stimulated by NADH and NADPH, respectively. RESULTS Compared to the control euthyroid nodular goiter group, activity of CYB5R and CYPOR increased ~5 and 10 times, respectively, in toxic goiter, and 15 and 30 times, respectively, in half of cases of PTC. The change in activity of CYPOR was more pronounced compared to CYB5R. Within the PTC group, the subgroups with low and high activities of microsomal reductases were identified. Microsomal reductases in follicular adenoma was 2-4-fold less active compared to the euthyroid nodular goiter and the low-activity PTC group. CONCLUSIONS Activity of tissue microsomal reductases varies in thyroid pathology and can be considered as a promising biomarker for differential diagnostics of benign and malignant thyroid tumors.
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Affiliation(s)
| | - Maria V Fedorova
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Madina M Sozarukova
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | | | - Igor V Panteleev
- Inozemtsev City Clinical Hospital of Moscow Department of Health, Moscow, Russia
| | - Evgeny V Svetlov
- Inozemtsev City Clinical Hospital of Moscow Department of Health, Moscow, Russia
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D'Arena G, Seneca E, Migliaccio I, De Feo V, Giudice A, La Rocca F, Capunzo M, Calapai G, Festa A, Caraglia M, Musto P, Iorio EL, Ruggieri V. Oxidative stress in chronic lymphocytic leukemia: still a matter of debate. Leuk Lymphoma 2018; 60:867-875. [PMID: 30234409 DOI: 10.1080/10428194.2018.1509317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
There is a large body of evidence showing a strong correlation between carcinogenesis of several types of human tumors, including chronic lymphocytic leukemia (CLL), and oxidative stress (OS). The mechanisms by which OS may promote cancer pathogenesis have not been completely deciphered yet and, in CLL, as in other neoplasms, whether OS is a primary cause or simply a downstream effect of the disease is still an open question. It has been demonstrated that, in CLL, OS concomitantly results from increased reactive oxygen species (ROS) production, mainly ascribable to CLL cells mitochondrial activity, and impaired antioxidant defenses. Interestingly, OS evaluation in CLL patients, at diagnosis, seems to have a prognostic significance, thus getting new insights in the biological comprehension of the disease with potential therapeutic implications.
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Affiliation(s)
- Giovanni D'Arena
- a Hematology and Stem Cell Transplantation Unit , IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture , Italy
| | - Elisa Seneca
- a Hematology and Stem Cell Transplantation Unit , IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture , Italy
| | - Ilaria Migliaccio
- a Hematology and Stem Cell Transplantation Unit , IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture , Italy
| | - Vincenzo De Feo
- b Pharmacology Department , University of Salerno , Salerno , Italy
| | - Aldo Giudice
- c Istituto Nazionale Tumori IRCCS Fondazione Pascale , Napoli , Italy
| | - Francesco La Rocca
- d Laboratory of Preclinical and Translational Research , IRCCS-CROB, Referral Cancer Center of Basilicata , Rionero in Vulture , Italy
| | - Mario Capunzo
- e Department of Medicine and Surgery , University of Salerno , Salerno , Italy
| | - Gioacchino Calapai
- f Department of Biomedical and Dental Sciences and Morphological and Functional Sciences , University of Messina , Messina , Italy
| | - Agostino Festa
- g Department of Biochimics, Biophysics and General Pathology , University of Campania "Luigi Vanvitelli" , Naples , Italy
| | - Michele Caraglia
- g Department of Biochimics, Biophysics and General Pathology , University of Campania "Luigi Vanvitelli" , Naples , Italy
| | - Pellegrino Musto
- h Scientific Direction, IRCCS-CROB , Referral Cancer Center of Basilicata, Rionero in Vulture , Italy
| | | | - Vitalba Ruggieri
- d Laboratory of Preclinical and Translational Research , IRCCS-CROB, Referral Cancer Center of Basilicata , Rionero in Vulture , Italy
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Docea AO, Vassilopoulou L, Fragou D, Arsene AL, Fenga C, Kovatsi L, Petrakis D, Rakitskii VN, Nosyrev AE, Izotov BN, Golokhvast KS, Zakharenko AM, Vakis A, Tsitsimpikou C, Drakoulis N. CYP polymorphisms and pathological conditions related to chronic exposure to organochlorine pesticides. Toxicol Rep 2017; 4:335-341. [PMID: 28959657 PMCID: PMC5615117 DOI: 10.1016/j.toxrep.2017.05.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/11/2017] [Accepted: 05/25/2017] [Indexed: 01/08/2023] Open
Abstract
Organochlorine compounds (OCs) are persistent organic pollutants acting as endocrine disruptors. Exposure to OCs is a risk factor for several severe pathologies. Specific CYP polymorphisms could affect the clinical impact of OCs exposure.
The association between genetic variations in the cytochrome P450 (CYP) family genes and pathological conditions related to long-term exposure to organochlorine compounds (OCs) deserves further elucidation. OCs are persistent organic pollutants with bioaccumulative and lipophilic characteristics. They can act as endocrine disruptors and perturb cellular mechanisms. Prolonged exposure to OCs has been associated with different pathological manifestations. CYP genes are responsible for transcribing enzymes essential in xenobiotic metabolism. Therefore, polymorphisms in these genetic sequences a. alter the metabolic pathways, b. induce false cellular responses, and c. may provoke pathological conditions. The main aim of this review is to define the interaction between parameters a, b and c at a mechanistic/molecular level, with references in clinical cases.
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Key Words
- ARNT, AhR nuclear translocator
- AhR, aryl hydrocarbon receptor
- CYP450, cytochrome P450
- Cytochrome P450
- DDE, dichlorodiphenyldichloroethylene
- DDT, dichlorodiphenyltrichloroethane
- Environmental pollutants
- GST, glutathione-S-transferase
- Genetic polymorphisms
- HCB, hexachlorobenzene
- HCH, hexachlorocyclohexane
- HPTE, hydroxychlor
- MXC, methoxychlor
- OBP, organochlorine by-product
- OC, organochlorine compound
- Organochlorine compounds
- PAA, phenoxyacetic acid
- PCB, polychlorinated biphenyl
- PCDD, polychlorinated dibenzodioxins
- PCDF, polychlorinated dibenzofurans
- POP, persistent organic pollutant
- Pathogenesis
- ROS, reactive oxygen species
- SNP, single nucleotide polymorphism
- TCDD, tetrachlorodibenzodioxin
- VCM, vinyl chloride monomer
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Affiliation(s)
- Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy, Faculty of Pharmacy, 2 Petru Rares, 200349, Craiova, Romania
| | - Loukia Vassilopoulou
- Department of Toxicology and Forensic Sciences, Medical School, University of Crete, Heraklion, Greece
| | - Domniki Fragou
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Greece
| | - Andreea Letitia Arsene
- Department of Microbiology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Concettina Fenga
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging - Occupational Medicine Section - University of Messina, 98125 Messina, Italy
| | - Leda Kovatsi
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Greece
| | | | - Valerii N Rakitskii
- Federal Scientific Center of Hygiene, F.F. Erisman, Moscow, Russian Federation
| | - Alexander E Nosyrev
- Central Chemical Laboratory of Toxicology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Boris N Izotov
- Central Chemical Laboratory of Toxicology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Kirill S Golokhvast
- Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok, Russian Federation
| | - Alexander M Zakharenko
- Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok, Russian Federation
| | - Antonis Vakis
- Department of Neurosurgery, University of Crete, Medical School, Heraklion University Hospital, Voutes, 71 021 Heraklion, Crete, Greece
| | - Christina Tsitsimpikou
- Department of Dangerous Substances, Mixtures and Articles, Directorate of Energy, Industrial and Chemical Products, General Chemical State Laboratory of Greece, Athens, Greece
| | - Nikolaos Drakoulis
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Greece
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Aflatoxin biosynthesis is a novel source of reactive oxygen species--a potential redox signal to initiate resistance to oxidative stress? Toxins (Basel) 2015; 7:1411-30. [PMID: 25928133 PMCID: PMC4448155 DOI: 10.3390/toxins7051411] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 04/15/2015] [Accepted: 04/17/2015] [Indexed: 11/17/2022] Open
Abstract
Aflatoxin biosynthesis in the filamentous fungus Aspergillus parasiticus involves a minimum of 21 enzymes, encoded by genes located in a 70 kb gene cluster. For aflatoxin biosynthesis to be completed, the required enzymes must be transported to specialized early and late endosomes called aflatoxisomes. Of particular significance, seven aflatoxin biosynthetic enzymes are P450/monooxygenases which catalyze reactions that can produce reactive oxygen species (ROS) as byproducts. Thus, oxidative reactions in the aflatoxin biosynthetic pathway could potentially be an additional source of intracellular ROS. The present work explores the hypothesis that the aflatoxin biosynthetic pathway generates ROS (designated as "secondary" ROS) in endosomes and that secondary ROS possess a signaling function. We used specific dyes that stain ROS in live cells and demonstrated that intracellular ROS levels correlate with the levels of aflatoxin synthesized. Moreover, feeding protoplasts with precursors of aflatoxin resulted in the increase in ROS generation. These data support the hypothesis. Our findings also suggest that secondary ROS may fulfill, at least in part, an important mechanistic role in increased tolerance to oxidative stress in germinating spores (seven-hour germlings) and in regulation of fungal development.
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