1
|
Grzegorzewska AK, Wolak D, Hrabia A. Effect of tamoxifen treatment on catalase (CAT) and superoxide dismutase (SOD) expression and localization in the hen oviduct. Theriogenology 2024; 214:73-80. [PMID: 37862940 DOI: 10.1016/j.theriogenology.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 10/22/2023]
Abstract
The imbalance between free reactive oxygen species (ROS) generation and removal (e.g., by antioxidative enzymes) leads to the damage of important biomolecules and cells. Earlier studies in hens showed that treatment with tamoxifen (TMX; estrogen receptor inhibitor) modulates oxidative stress and causes the reproductive system regression realized by cell apoptosis. The aim of the present study was, therefore, to examine the expression and immunolocalization of the key enzymatic antioxidants, i.e. catalase (CAT) and superoxide dismutase (SOD), in the chicken oviduct following TMX treatment. Laying hens were treated daily with TMX until a pause in egg-laying occurred and then euthanized on day 8 of the experiment. Quantitative real-time PCR and western blot analyses showed the presence of CAT and SOD transcripts and proteins, respectively, in all oviductal segments, i.e., the infundibulum, magnum, isthmus, shell gland and vagina. In control hens (laying), the mRNA expression of CAT was the highest in the shell gland, lower in the isthmus and the lowest in other oviductal parts, whereas protein expression was the highest in the magnum, lower in the isthmus and the lowest in other segments. The SOD transcript and protein abundances only were lower in the magnum than in other segments. Immunoreactive CAT and SOD products were localized in all layers of the oviductal wall, but the intensity of staining depended on the cell type. TMX treatment affected CAT and SOD expression and the effect of TMX depended on gene, protein, cell type and oviductal part. Generally, CAT expression was elevated, while SOD expression was decreased under TMX treatment. These results point to the importance of CAT and SOD in the maintenance of proper oviduct health and function. Changes in ROS scavenging enzymes after estrogen receptor blockage indicate the significance of estrogen in the regulation of oxidative status in the avian oviduct.
Collapse
Affiliation(s)
- Agnieszka K Grzegorzewska
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120, Krakow, Poland
| | - Dominika Wolak
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120, Krakow, Poland
| | - Anna Hrabia
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120, Krakow, Poland.
| |
Collapse
|
2
|
Jyoti B, Bharat C, Ankita N, Munita B, Sudeep G. Pregnancy on tamoxifen: Case-report and review of literature. South Asian J Cancer 2020; 5:209-210. [PMID: 28032092 PMCID: PMC5184762 DOI: 10.4103/2278-330x.195347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Bajpai Jyoti
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Chauhan Bharat
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Nachanker Ankita
- Department of Radiotherapy, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Bal Munita
- Department of Surgical Pathology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Gupta Sudeep
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| |
Collapse
|
3
|
Rutkowska J, Lagisz M, Bonduriansky R, Nakagawa S. Mapping the past, present and future research landscape of paternal effects. BMC Biol 2020; 18:183. [PMID: 33246472 PMCID: PMC7694421 DOI: 10.1186/s12915-020-00892-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 10/08/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Although in all sexually reproducing organisms an individual has a mother and a father, non-genetic inheritance has been predominantly studied in mothers. Paternal effects have been far less frequently studied, until recently. In the last 5 years, research on environmentally induced paternal effects has grown rapidly in the number of publications and diversity of topics. Here, we provide an overview of this field using synthesis of evidence (systematic map) and influence (bibliometric analyses). RESULTS We find that motivations for studies into paternal effects are diverse. For example, from the ecological and evolutionary perspective, paternal effects are of interest as facilitators of response to environmental change and mediators of extended heredity. Medical researchers track how paternal pre-fertilization exposures to factors, such as diet or trauma, influence offspring health. Toxicologists look at the effects of toxins. We compare how these three research guilds design experiments in relation to objects of their studies: fathers, mothers and offspring. We highlight examples of research gaps, which, in turn, lead to future avenues of research. CONCLUSIONS The literature on paternal effects is large and disparate. Our study helps in fostering connections between areas of knowledge that develop in parallel, but which could benefit from the lateral transfer of concepts and methods.
Collapse
Affiliation(s)
- Joanna Rutkowska
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Kraków, Poland
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, BEES, The University of New South Wales, Sydney, Australia
| | - Malgorzata Lagisz
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, BEES, The University of New South Wales, Sydney, Australia
| | - Russell Bonduriansky
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, BEES, The University of New South Wales, Sydney, Australia
| | - Shinichi Nakagawa
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, BEES, The University of New South Wales, Sydney, Australia
| |
Collapse
|
4
|
Luque-Bolivar A, Pérez-Mora E, Villegas VE, Rondón-Lagos M. Resistance and Overcoming Resistance in Breast Cancer. BREAST CANCER-TARGETS AND THERAPY 2020; 12:211-229. [PMID: 33204149 PMCID: PMC7666993 DOI: 10.2147/bctt.s270799] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/15/2020] [Indexed: 12/13/2022]
Abstract
The incidence and mortality of breast cancer (BC) have increased in recent years, and BC is the main cause of cancer-related death in women worldwide. One of the most significant clinical problems in the treatment of patients with BC is the development of therapeutic resistance. Therefore, elucidating the molecular mechanisms involved in drug resistance is critical. The therapeutic decision for the management of patients with BC is based not only on the assessment of prognostic factors but also on the evaluation of clinical and pathological parameters. Although this has been a successful approach, some patients relapse and/or eventually develop resistance to treatment. This review is focused on recent studies on the possible biological and molecular mechanisms involved in both response and resistance to treatment in BC. Additionally, emerging treatments that seek to overcome resistance and reduce side effects are also described. A greater understanding of the mechanisms of action of treatments used in BC might contribute not only to the enhancement of our understanding of the mechanisms involved in the development of resistance but also to the optimization of the existing treatment regimens.
Collapse
Affiliation(s)
- Andrea Luque-Bolivar
- School of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia
| | - Erika Pérez-Mora
- School of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia
| | | | - Milena Rondón-Lagos
- School of Biological Sciences, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia
| |
Collapse
|
5
|
Rondón-Lagos M, Rangel N, Di Cantogno LV, Annaratone L, Castellano I, Russo R, Manetta T, Marchiò C, Sapino A. Effect of low doses of estradiol and tamoxifen on breast cancer cell karyotypes. Endocr Relat Cancer 2016; 23:635-50. [PMID: 27357940 PMCID: PMC5064758 DOI: 10.1530/erc-16-0078] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 06/29/2016] [Indexed: 12/21/2022]
Abstract
Evidence supports a role of 17&-estradiol (E2) in carcinogenesis and the large majority of breast carcinomas are dependent on estrogen. The anti-estrogen tamoxifen (TAM) is widely used for both treatment and prevention of breast cancer; however, it is also carcinogenic in human uterus and rat liver, highlighting the profound complexity of its actions. The nature of E2- or TAM-induced chromosomal damage has been explored using relatively high concentrations of these agents, and only some numerical aberrations and chromosomal breaks have been analyzed. This study aimed to determine the effects of low doses of E2 and TAM (10(&8 )mol L(&1) and 10(&6 )mol L(&1) respectively) on karyotypes of MCF7, T47D, BT474, and SKBR3 breast cancer cells by comparing the results of conventional karyotyping and multi-FISH painting with cell proliferation. Estrogen receptor (ER)-positive (+) cells showed an increase in cell proliferation after E2 treatment (MCF7, T47D, and BT474) and a decrease after TAM treatment (MCF7 and T47D), whereas in ER& cells (SKBR3), no alterations in cell proliferation were observed, except for a small increase at 96 h. Karyotypes of both ER+ and ER& breast cancer cells increased in complexity after treatments with E2 and TAM leading to specific chromosomal abnormalities, some of which were consistent throughout the treatment duration. This genotoxic effect was higher in HER2+ cells. The ER&/HER2+ SKBR3 cells were found to be sensitive to TAM, exhibiting an increase in chromosomal aberrations. These in vitro results provide insights into the potential role of low doses of E2 and TAM in inducing chromosomal rearrangements in breast cancer cells.
Collapse
Affiliation(s)
| | - Nelson Rangel
- Department of Medical SciencesUniversity of Turin, Turin, Italy Natural and Mathematical Sciences FacultyUniversidad del Rosario, Bogotá, Colombia
| | | | | | | | - Rosalia Russo
- Department of Medical SciencesUniversity of Turin, Turin, Italy
| | - Tilde Manetta
- Department of Public Health and PediatricsUniversity of Turin, Turin, Italy
| | | | - Anna Sapino
- Department of Medical SciencesUniversity of Turin, Turin, Italy Candiolo Cancer InstituteFPO-IRCCS, Candiolo, Italy
| |
Collapse
|
6
|
Li X, Wang L, Wang Z. Radioprotective activity of neutral polysaccharides isolated from the fruiting bodies of Hohenbuehelia serotina. Phys Med 2015; 31:352-9. [PMID: 25703009 DOI: 10.1016/j.ejmp.2015.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 01/29/2015] [Accepted: 02/02/2015] [Indexed: 01/14/2023] Open
Abstract
In this study, the radioprotective effect of neutral polysaccharides from Hohenbuehelia serotina (NTHSP) against the damages induced by (60)Co-γ radiation was investigated. The results showed that NTHSP could significantly improve the activity of glutathione peroxidase (GSH-Px) and increase the contents of glutathione (GSH) and ceruloplasmin in plasma after treated with 6 Gy-radiation compared with the radiation controls (p < 0.05). Furthermore, administration with NTHSP could effectively increase the quantity of marrow DNA (p < 0.05) and reduce the rates of chromosome aberration and micronuclei (p < 0.01) in bone marrows of mice. In addition, NTHSP could markedly inhibit the expressions of Bax protein and promote the expressions of Bcl-2 protein, accordingly inhibit the releases of cytochrome c and expressions of activated Caspase-3, and therefore block the mitochondrial apoptotic pathway of splenocytes in mice induced by (60)Co-γ radiation. These results suggested that NTHSP might be a natural radioprotective agent against the injuries induced by radiation.
Collapse
Affiliation(s)
- Xiaoyu Li
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China.
| | - Lu Wang
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Zhenyu Wang
- School of Food Science and Engineering, Harbin Institute of Technology, Harbin 150090, PR China
| |
Collapse
|
7
|
Lee S, Lee MS, Park J, Zhang JY, Jin DI. Oxidative stress in the testis induced by tamoxifen and its effects on early embryo development in isogenic mice. J Toxicol Sci 2012; 37:675-9. [DOI: 10.2131/jts.37.675] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Sunghak Lee
- Department of Animal Science & Biotechnology, Chungnam National University, Korea
| | | | | | - Jin Yu Zhang
- Department of Animal Science & Biotechnology, Chungnam National University, Korea
| | - Dong Il Jin
- Department of Animal Science & Biotechnology, Chungnam National University, Korea
| |
Collapse
|