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Zabala AS, Conforti RA, Delsouc MB, Filippa V, Montt-Guevara MM, Giannini A, Simoncini T, Vallcaneras SS, Casais M. Estetrol Inhibits Endometriosis Development in an In Vivo Murine Model. Biomolecules 2024; 14:580. [PMID: 38785987 PMCID: PMC11118049 DOI: 10.3390/biom14050580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/28/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024] Open
Abstract
Endometriosis is characterized by the growth of endometrial-like tissue outside the uterus, and it is associated with alterations in the expression of hormone receptors and inflammation. Estetrol (E4) is a weak estrogen that recently has been approved for contraception. We evaluated the effect of E4 on the growth of endometriotic-like lesions and the expression of TNF-α, estrogen receptors (ERs), and progesterone receptors (PRs) in an in vivo murine model. Endometriosis was induced surgically in female C57BL/6 mice. E4 was delivered via Alzet pump (3 mg/kg/day) from the 15th postoperative day for 4 weeks. E4 significantly reduced the volume (p < 0.001) and weight (p < 0.05) of ectopic lesions. Histologically, E4 did not affect cell proliferation (PCNA immunohistochemistry) but it did increase cell apoptosis (TUNEL assay) (p < 0.05). Furthermore, it modulated oxidative stress (SOD, CAT, and GPX activity, p < 0.05) and increased lipid peroxidation (TBARS/MDA, p < 0.01). Molecular analysis showed mRNA (RT-qPCR) and protein (ELISA) expression of TNF-α decreased (p < 0.05) and mRNA expression of Esr2 reduced (p < 0.05), in contrast with the increased expression of Esr1 (p < 0.01) and Pgr (p < 0.05). The present study demonstrates for the first time that E4 limited the development and progression of endometriosis in vivo.
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Affiliation(s)
- Ana Sofia Zabala
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis D5700HHW, Argentina; (A.S.Z.); (R.A.C.); (M.B.D.)
| | - Rocío Ayelem Conforti
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis D5700HHW, Argentina; (A.S.Z.); (R.A.C.); (M.B.D.)
| | - María Belén Delsouc
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis D5700HHW, Argentina; (A.S.Z.); (R.A.C.); (M.B.D.)
| | - Verónica Filippa
- Histología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis D5700HHW, Argentina;
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Luis D5700HHW, Argentina
| | - Maria Magdalena Montt-Guevara
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (M.M.M.-G.); (A.G.); (T.S.)
| | - Andrea Giannini
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (M.M.M.-G.); (A.G.); (T.S.)
| | - Tommaso Simoncini
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (M.M.M.-G.); (A.G.); (T.S.)
| | - Sandra Silvina Vallcaneras
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis D5700HHW, Argentina; (A.S.Z.); (R.A.C.); (M.B.D.)
| | - Marilina Casais
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis D5700HHW, Argentina; (A.S.Z.); (R.A.C.); (M.B.D.)
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Conforti RA, Delsouc MB, Zorychta E, Telleria CM, Casais M. Copper in Gynecological Diseases. Int J Mol Sci 2023; 24:17578. [PMID: 38139406 PMCID: PMC10743751 DOI: 10.3390/ijms242417578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023] Open
Abstract
Copper (Cu) is an essential micronutrient for the correct development of eukaryotic organisms. This metal plays a key role in many cellular and physiological activities, including enzymatic activity, oxygen transport, and cell signaling. Although the redox activity of Cu is crucial for enzymatic reactions, this property also makes it potentially toxic when found at high levels. Due to this dual action of Cu, highly regulated mechanisms are necessary to prevent both the deficiency and the accumulation of this metal since its dyshomeostasis may favor the development of multiple diseases, such as Menkes' and Wilson's diseases, neurodegenerative diseases, diabetes mellitus, and cancer. As the relationship between Cu and cancer has been the most studied, we analyze how this metal can affect three fundamental processes for tumor progression: cell proliferation, angiogenesis, and metastasis. Gynecological diseases are characterized by high prevalence, morbidity, and mortality, depending on the case, and mainly include benign and malignant tumors. The cellular processes that promote their progression are affected by Cu, and the mechanisms that occur may be similar. We analyze the crosstalk between Cu deregulation and gynecological diseases, focusing on therapeutic strategies derived from this metal.
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Affiliation(s)
- Rocío A. Conforti
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis CP D5700HHW, Argentina; (R.A.C.); (M.B.D.)
| | - María B. Delsouc
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis CP D5700HHW, Argentina; (R.A.C.); (M.B.D.)
| | - Edith Zorychta
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine and Health Sciences, McGill University, 3775 University Street, Montreal, QC H3A 2B4, Canada;
| | - Carlos M. Telleria
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine and Health Sciences, McGill University, 3775 University Street, Montreal, QC H3A 2B4, Canada;
- Cancer Research Program, Research Institute, McGill University Health Centre, Montreal, QC H4A 3J1, Canada
| | - Marilina Casais
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), San Luis CP D5700HHW, Argentina; (R.A.C.); (M.B.D.)
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Conforti RA, Delsouc MB, Zabala AS, Vallcaneras SS, Casais M. The copper chelator ammonium tetrathiomolybdate inhibits the progression of experimental endometriosis in TNFR1-deficient mice. Sci Rep 2023; 13:10354. [PMID: 37365216 DOI: 10.1038/s41598-023-37031-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 06/14/2023] [Indexed: 06/28/2023] Open
Abstract
The TNF-α/TNFR system is involved in endometriosis (EDT), a gynecologic estrogen-dependent disease. Elevated copper concentrations have also been associated with EDT, even in TNFR1-deficient mice where disease worsening occurs. We aimed to evaluate whether treatment with ammonium tetrathiomolybdate (TM, copper chelator) is beneficial in TNFR1-deficient mice presenting with worsened EDT status. Female C57BL/6 mice were divided into three groups: KO Sham, KO EDT, and KO EDT+TM. TM was administered from the 15th postoperative day, and samples were collected one month after inducing pathology. In peritoneal fluid, copper and estradiol levels were determined by electrothermal atomic absorption spectrometry and electrochemiluminescence, respectively. Lesions were processed for the analysis of cell proliferation (PCNA immunohistochemistry), expression of angiogenic markers (RT-qPCR), and oxidative stress (spectrophotometric methods). We found that EDT increased copper and estradiol levels compared to the KO Sham group, while the TM administration restored the levels of both factors. TM also reduced the volume and weight of the lesions and cell proliferation rate. Besides, TM treatment decreased the number of blood vessels and the Vegfa, Fgf2, and Pdgfb expression. Furthermore, superoxide dismutase and catalase activity decreased, and lipid peroxidation increased. TM administration inhibits EDT progression in TNFR1-deficient mice where the pathology is exacerbated.
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Affiliation(s)
- Rocío Ayelem Conforti
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL). Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), D5700HHW, San Luis, Argentina
| | - María Belén Delsouc
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL). Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), D5700HHW, San Luis, Argentina.
| | - Ana Sofia Zabala
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL). Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), D5700HHW, San Luis, Argentina
| | - Sandra Silvina Vallcaneras
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL). Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), D5700HHW, San Luis, Argentina
| | - Marilina Casais
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL). Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), D5700HHW, San Luis, Argentina.
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Ghersa F, Delsouc MB, Goyeneche AA, Vallcaneras SS, Meresman G, Telleria CM, Casais M. Reduced inflammatory state promotes reinnervation of endometriotic-like lesions in TNFRp55 deficient mice. Mol Hum Reprod 2019; 25:385-396. [PMID: 31070761 DOI: 10.1093/molehr/gaz026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 04/15/2019] [Accepted: 05/01/2019] [Indexed: 12/17/2022] Open
Abstract
Endometriosis is a chronic gynecological disease, characterized by growth of endometrial tissue in ectopic sites due to alteration of peritoneal homeostasis and deregulation of apoptosis. Here we have examined whether TNFRp55 deficiency modulates the pro-inflammatory state and the reinnervation of endometriotic-like lesions in mice. Two-month-old female C57BL/6 mice, eight wild type (WT) and eight TNFRp55-/- (KO) were used in the study. Endometriotic-like lesions were induced experimentally. The right uterine horn was removed from the animal, divided longitudinally, cut in three square pieces and sutured to the intestine mesentery. After 4 weeks, the lesions and the peritoneal fluid were collected. The level of TNFα in the peritoneal fluid was evaluated by enzyme-linked immunosorbent assay (EIA). The expressions of COX2, GRα and GRβ were evaluated in the lesions by western blot and immunohistochemistry. β-III TUBULIN, BDNF and NGF protein concentrations were evaluated in the lesions by western blot. Gene expression of Pgp 9.5, SP and Th was analyzed by RT-PCR, whereas relative concentrations of TRKA, NTRp75, phosphorylated NFκB (pNFκB) and total NFκB in lesions were measured by EIA. Compared with the WT group, the KO mice showed lower TNFα levels in the peritoneal fluid and lower numbers of COX2 immunoreactive cells along with increased expression of GRα, β-III TUBULIN, Pgp 9.5, SP, Th, BDNF, NGF, NTRp75 and pNFκB in the lesions. Future histological studies will be necessary to confirm the sensory/sympathetic imbalance in the endometriotic-like lesions of the KO mice. Our results suggest that a reduced inflammatory state promotes reinnervation of endometriotic-like lesions in TNFRp55-/- mice. Chronic deregulation of TNF receptors can have serious consequences for women with advanced endometriosis.
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Affiliation(s)
- F Ghersa
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - M B Delsouc
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - A A Goyeneche
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine, McGill University, 3775 University Street, Montreal, QC H3A 2B4, Canada
| | - S S Vallcaneras
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - G Meresman
- Laboratorio de Fisiopatología Endometrial, Instituto de Biología y Medicina Experimental (IBYME-CONICET), Vuelta de Obligado 2490, CP C1428ADN, Buenos Aires, Argentina
| | - C M Telleria
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine, McGill University, 3775 University Street, Montreal, QC H3A 2B4, Canada
| | - M Casais
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
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Kapoor R, Sirohi VK, Gupta K, Dwivedi A. Naringenin ameliorates progression of endometriosis by modulating Nrf2/Keap1/HO1 axis and inducing apoptosis in rats. J Nutr Biochem 2019; 70:215-226. [PMID: 31252288 DOI: 10.1016/j.jnutbio.2019.05.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 04/02/2019] [Accepted: 05/08/2019] [Indexed: 12/12/2022]
Abstract
Endometriosis is mainly characterized by the presence of endometrial tissue exterior to the uterus, however, the exact pathophysiology of this disease still remains uncertain. Moreover, the incidence significantly contributes to infertility among women and hence, a novel treatment for endometriosis is widely investigated. Naringenin is a plant-derived flavonoid having anti-proliferative, anti-inflammatory, and anti-angiogenic properties in chronic and metabolic diseases. The current study was planned with an objective to demonstrate the anti-endometriotic therapeutic potential of naringenin in rats and to examine its impact on various cellular aspects with a view to define the mechanism involved. The endometrial lesion volumes, weight, serum TNF-α level and the histopathologic scores were significantly reduced in the naringenin- treated group as compared to the endometriotic control group. Naringenin ameliorated the expression of prognostic markers (TAK1, PAK1, VEGF and PCNA) involved in development and progression of endometriotic cells. Naringenin caused dose-dependent loss of mitochondrial membrane potential, induced apoptosis and inhibited proliferation in these cells. Further, a significant increase in level of Nrf2 and its downstream molecules (NQO1, HO-1) was found in endometriotic lesion, with a subsequent decrease in its repressor molecule Keap-1. Naringenin significantly modulated the expression of Nrf2 and its effector molecules downstream. It also inhibited the invasion of endometrial cells by reducing the expression of MMP-2 and MMP-9 in in-vitro primary culture. We conclude that naringenin may have a therapeutic potential in the treatment of endometriosis via induction of ROS-mediated apoptosis and its anti-invasive effects.
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Affiliation(s)
- Radhika Kapoor
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Vijay Kumar Sirohi
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Kanchan Gupta
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Anila Dwivedi
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India.
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Delsouc MB, Ghersa F, Ramírez D, Della Vedova MC, Gil RA, Vallcaneras SS, Casais M. Endometriosis progression in tumor necrosis factor receptor p55-deficient mice: Impact on oxidative/nitrosative stress and metallomic profile. J Trace Elem Med Biol 2019; 52:157-165. [PMID: 30732877 DOI: 10.1016/j.jtemb.2018.12.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/07/2018] [Accepted: 12/29/2018] [Indexed: 01/01/2023]
Abstract
The present study was conducted to investigate whether the deficiency of tumor necrosis factor receptor p55 (TNFRp55) modulates oxidative/nitrosative stress and metallomic profile into the peritoneal cavity during the experimental endometriosis progression in mice. Female C57BL/6 mice, wild-type (WT) and TNFRp55 knockout (KO) of two months were used. Endometriosis was induced experimentally by autotransplanting three pieces of the right uterine horn to the intestinal mesentery. After four weeks, endometriotic-like lesions and peritoneal lavage fluid were collected. The obtained peritoneal fluid was analyzed for nitrite levels using the Griess method and trace elements concentrations by ICP-MS. Both endometriotic-like lesions and cells isolated from peritoneal lavage were analyzed for the following oxidative/nitrosative stress markers: inducible nitric oxide synthase (iNOS) expression by Western Blot; total antioxidant capacity (TAC), the activity of two antioxidant enzymes (CAT and GPX) and thiobarbituric acid-reactive substances (TBARS) concentration, by spectrophotometric method; and protein carbonyl content and nitrotyrosine presence by ELISA. In comparison to WT group, KO mice exhibited larger lesion volume; higher levels of nitrite, copper (Cu) and strontium (Sr) in the peritoneal fluid; increased TAC, CAT, and GPX in peritoneal lavage cells; decreased concentration of TBARS in lesions and protein carbonyl in peritoneal lavage cells. Significant positive correlations between Cu and lesion volume, Sr and lesion volume, and Cu and Sr were obtained. Our results suggest that the TNFRp55 deficiency increases antioxidant protection and promotes high Cu-Sr concentrations in the peritoneal cavity, which favors the progression of experimental endometriosis.
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Affiliation(s)
- M B Delsouc
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL), CONICET, Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - F Ghersa
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL), CONICET, Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - D Ramírez
- Laboratorio de Medicina Experimental & Traduccional (LME&T), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL), CONICET, Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - M C Della Vedova
- Instituto de Química de San Luis (INQUISAL), CONICET, Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - R A Gil
- Instituto de Química de San Luis (INQUISAL), CONICET, Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - S S Vallcaneras
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL), CONICET, Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina
| | - M Casais
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL), CONICET, Ejército de Los Andes 950, CP D5700HHW, San Luis, Argentina.
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de la Vega MDC, Delsouc MB, Ponce I, Ragusa V, Vallcaneras S, Anzulovich AC, Casais M. Circadian rhythms of factors involved in luteal regression are modified in p55 tumour necrosis factor receptor (TNFRp55)-deficient mice. Reprod Fertil Dev 2018; 30:1651-1665. [PMID: 29903342 DOI: 10.1071/rd18058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 05/05/2018] [Indexed: 12/17/2023] Open
Abstract
The rhythm of factors involved in luteal regression is crucial in determining the physiological duration of the oestrous cycle. Given the role of tumour necrosis factor (TNF)-α in luteal function and circadian regulation and that most of the effects of TNF-α are mediated by p55 TNF receptor (TNFRp55), the aims of the present study were to analyse the following during the luteal regression phase in the ovary of mice: (1) whether the pattern of expression of progesterone (P4) and the enzymes involved in the synthesis and degradation of P4 is circadian and endogenous (the rhythm persists in constant conditions, (i.e., constant darkness) with a period of about 24 hours); (2) circadian oscillations in clock gene expression; (3) whether there are daily variations in the expression of key genes involved in apoptosis and antioxidant mechanisms; and (4) the consequences of TNFRp55 deficiency. P4 was found to oscillate circadianally following endogenous rhythms of clock factors. Of note, TNFRp55 deficiency modified the circadian oscillation in P4 concentrations and its enzymes involved in the synthesis and degradation of P4, probably as a consequence of changes in the circadian oscillations of brain and muscle ARNT-Like protein 1 (Bmal1) and Cryptochrome 1 (Cry1). Furthermore, TNFRp55 deficiency modified the circadian rhythms of apoptosis genes, as well as antioxidant enzymes and peroxidation levels in the ovary in dioestrus. The findings of the present study strengthen the hypothesis that dysregulation of TNF-α signalling may be a potential cause for altered circadian and menstrual cycling in some gynaecological diseases.
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Affiliation(s)
- Magali Del C de la Vega
- Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Instituto Multidisciplinario de Investigaciones Biológicas, San Luis, Universidad Nacional de San Luis, Ejército de los Andes 950, CP D5700HHW, San Luis, Argentina
| | - María B Delsouc
- Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Instituto Multidisciplinario de Investigaciones Biológicas, San Luis, Universidad Nacional de San Luis, Ejército de los Andes 950, CP D5700HHW, San Luis, Argentina
| | - Ivana Ponce
- Laboratorio de Cronobiología, Facultad de Química, Bioquímica y Farmacia, Instituto Multidisciplinario de Investigaciones Biológicas, San Luis, Universidad Nacional de San Luis, Ejército de los Andes 950, CP D5700HHW, San Luis, Argentina
| | - Vicente Ragusa
- Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Instituto Multidisciplinario de Investigaciones Biológicas, San Luis, Universidad Nacional de San Luis, Ejército de los Andes 950, CP D5700HHW, San Luis, Argentina
| | - Sandra Vallcaneras
- Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Instituto Multidisciplinario de Investigaciones Biológicas, San Luis, Universidad Nacional de San Luis, Ejército de los Andes 950, CP D5700HHW, San Luis, Argentina
| | - Ana C Anzulovich
- Laboratorio de Cronobiología, Facultad de Química, Bioquímica y Farmacia, Instituto Multidisciplinario de Investigaciones Biológicas, San Luis, Universidad Nacional de San Luis, Ejército de los Andes 950, CP D5700HHW, San Luis, Argentina
| | - Marilina Casais
- Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Instituto Multidisciplinario de Investigaciones Biológicas, San Luis, Universidad Nacional de San Luis, Ejército de los Andes 950, CP D5700HHW, San Luis, Argentina
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