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Giorgi G, Mascaró M, Gandini NA, Rabassa ME, Coló GP, Arévalo J, Curino AC, Facchinetti MM, Roque ME. Iron cycle disruption by heme oxygenase-1 activation leads to a reduced breast cancer cell survival. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166621. [PMID: 36539019 DOI: 10.1016/j.bbadis.2022.166621] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 07/01/2022] [Revised: 12/01/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
Abstract
Heme oxygenase-1 (HO-1), which catalyzes heme degradation releasing iron, regulates several processes related to breast cancer. Iron metabolism deregulation is also connected with several tumor processes. However the regulatory relationship between HO-1 and iron proteins in breast cancer remains unclear. Using human breast cancer biopsies, we found that high HO-1 levels significantly correlated with low DMT1 levels. Contrariwise, high HO-1 levels significantly correlated with high ZIP14 and prohepcidin expression, as well as hemosiderin storage. At mRNA level, we found that high HO-1 expression significantly correlated with low DMT1 expression but high ZIP14, L-ferritin and hepcidin expression. In in vivo experiments in mice with genetic overexpression or pharmacological activation of HO-1, we detected the same expression pattern observed in human biopsies. In in vitro experiments, HO-1 activation induced changes in iron proteins expression leading to an increase of hemosiderin, ROS levels, lipid peroxidation and a decrease of the growth rate. Such low growth rate induced by HO-1 activation was reversed when iron levels or ROS levels were reduced. Our findings demonstrate an important role of HO-1 on iron homeostasis in breast cancer. The changes in iron proteins expression when HO-1 is modulated led to the iron accumulation deregulating the iron cell cycle, and consequently, generating oxidative stress and low viability, all contributing to impair breast cancer progression.
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Affiliation(s)
- G Giorgi
- Laboratorio de Fisiología Humana, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), 8000 Bahía Blanca, Argentina
| | - M Mascaró
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina
| | - N A Gandini
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina
| | - M E Rabassa
- Centro de Investigaciones Inmunológicas Básicas y Aplicadas (CINIBA), Facultad de Ciencias Médicas, Universidad Nacional de La Plata (UNLP), 1900 La Plata, Buenos Aires, Argentina
| | - G P Coló
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina
| | - J Arévalo
- Servicio de Patología, Hospital Interzonal de Agudos "Dr. José Penna", 8000 Bahía Blanca, Argentina
| | - A C Curino
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina.
| | - M M Facchinetti
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina
| | - M E Roque
- Laboratorio de Fisiología Humana, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), 8000 Bahía Blanca, Argentina
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Canzoneri R, Naipauer J, Stedile M, Rodriguez Peña A, Lacunza E, Gandini NA, Curino AC, Facchinetti MM, Coso OA, Kordon E, Abba MC. Identification of an AP1-ZFP36 Regulatory Network Associated with Breast Cancer Prognosis. J Mammary Gland Biol Neoplasia 2020; 25:163-172. [PMID: 32248342 DOI: 10.1007/s10911-020-09448-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/24/2020] [Indexed: 01/05/2023] Open
Abstract
It has been established that ZFP36 (also known as Tristetraprolin or TTP) promotes mRNA degradation of proteins involved in inflammation, proliferation and tumor invasiveness. In mammary epithelial cells ZFP36 expression is induced by STAT5 activation during lactogenesis, while in breast cancer ZFP36 expression is associated with lower grade and better prognosis. Here, we show that the AP-1 transcription factor components, i.e. JUN, JUNB, FOS, FOSB, in addition to DUSP1, EGR1, NR4A1, IER2 and BTG2, behave as a conserved co-regulated group of genes whose expression is associated to ZFP36 in cancer cells. In fact, a significant down-modulation of this gene network is observed in breast, liver, lung, kidney, and thyroid carcinomas compared to their normal counterparts. In breast cancer, the normal-like and Luminal A, show the highest expression of the ZFP36 gene network among the other intrinsic subtypes and patients with low expression of these genes display poor prognosis. It is also proposed that AP-1 regulates ZFP36 expression through responsive elements detected in the promoter region of this gene. Culture assays show that AP-1 activity induces ZFP36 expression in mammary cells in response to prolactin (PRL) treatment thorough ERK1/2 activation. These results suggest that JUN, JUNB, FOS and FOSB are not only co-expressed, but would also play a relevant role in regulating ZFP36 expression in mammary epithelial cells.
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Affiliation(s)
- R Canzoneri
- Centro de Investigaciones Inmunológicas Básicas y Aplicadas, CINIBA, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - J Naipauer
- Laboratorio de Expresión Génica en Mama y Apoptosis, LEGMA, IFIBYNE-CONICET, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M Stedile
- Laboratorio de Expresión Génica en Mama y Apoptosis, LEGMA, IFIBYNE-CONICET, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - A Rodriguez Peña
- Centro de Investigaciones Inmunológicas Básicas y Aplicadas, CINIBA, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - E Lacunza
- Centro de Investigaciones Inmunológicas Básicas y Aplicadas, CINIBA, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
| | - N A Gandini
- Laboratorio de Biología del Cáncer, INIBIBB, Universidad Nacional del Sur - CONICET, Bahía Blanca, Argentina
| | - A C Curino
- Laboratorio de Biología del Cáncer, INIBIBB, Universidad Nacional del Sur - CONICET, Bahía Blanca, Argentina
| | - M M Facchinetti
- Laboratorio de Biología del Cáncer, INIBIBB, Universidad Nacional del Sur - CONICET, Bahía Blanca, Argentina
| | - O A Coso
- Laboratorio de Expresión Génica en Mama y Apoptosis, LEGMA, IFIBYNE-CONICET, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - E Kordon
- Laboratorio de Expresión Génica en Mama y Apoptosis, LEGMA, IFIBYNE-CONICET, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M C Abba
- Centro de Investigaciones Inmunológicas Básicas y Aplicadas, CINIBA, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina.
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