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Cáceres ARR, Cardone DA, Sanhueza MDLÁ, Bosch IM, Cuello-Carrión FD, Rodriguez GB, Scotti L, Parborell F, Halperin J, Laconi MR. Local effect of allopregnanolone in rat ovarian steroidogenesis, follicular and corpora lutea development. Sci Rep 2024; 14:6402. [PMID: 38493224 PMCID: PMC10944484 DOI: 10.1038/s41598-024-57102-1] [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: 12/29/2023] [Accepted: 03/14/2024] [Indexed: 03/18/2024] Open
Abstract
Allopregnanolone (ALLO) is a known neurosteroid and a progesterone metabolite synthesized in the ovary, CNS, PNS, adrenals and placenta. Its role in the neuroendocrine control of ovarian physiology has been studied, but its in situ ovarian effects are still largely unknown. The aims of this work were to characterize the effects of intrabursal ALLO administration on different ovarian parameters, and the probable mechanism of action. ALLO administration increased serum progesterone concentration and ovarian 3β-HSD2 while decreasing 20α-HSD mRNA expression. ALLO increased the number of atretic follicles and the number of positive TUNEL granulosa and theca cells, while decreasing positive PCNA immunostaining. On the other hand, there was an increase in corpora lutea diameter and PCNA immunostaining, whereas the count of TUNEL-positive luteal cells decreased. Ovarian angiogenesis and the immunohistochemical expression of GABAA receptor increased after ALLO treatment. To evaluate if the ovarian GABAA receptor was involved in these effects, we conducted a functional experiment with a specific antagonist, bicuculline. The administration of bicuculline restored the number of atretic follicles and the diameter of corpora lutea to normal values. These results show the actions of ALLO on the ovarian physiology of the female rat during the follicular phase, some of them through the GABAA receptor. Intrabursal ALLO administration alters several processes of the ovarian morpho-physiology of the female rat, related to fertility and oocyte quality.
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Affiliation(s)
- Antonella Rosario Ramona Cáceres
- Laboratorio de Fisiopatología Ovárica, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU - CONICET Mendoza), Av. Ruiz Leal s/n Parque General San Martín, CP 5500, Mendoza, Argentina
- Facultad de Ingeniería y Facultad de Ciencias Médicas, Universidad de Mendoza, Mendoza, Argentina
| | - Daniela Alejandra Cardone
- Laboratorio de Fisiopatología Ovárica, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU - CONICET Mendoza), Av. Ruiz Leal s/n Parque General San Martín, CP 5500, Mendoza, Argentina
| | - María de Los Ángeles Sanhueza
- Laboratorio de Fisiopatología Ovárica, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU - CONICET Mendoza), Av. Ruiz Leal s/n Parque General San Martín, CP 5500, Mendoza, Argentina
| | | | - Fernando Darío Cuello-Carrión
- Laboratorio de Oncología, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU - CONICET Mendoza), Mendoza, Argentina
| | | | - Leopoldina Scotti
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina
| | - Fernanda Parborell
- Ovarian Pathophysiology Studies Laboratory, Institute of Experimental Biology and Medicine (IByME) - CONICET, Buenos Aires, Argentina
| | - Julia Halperin
- Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina
| | - Myriam Raquel Laconi
- Laboratorio de Fisiopatología Ovárica, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU - CONICET Mendoza), Av. Ruiz Leal s/n Parque General San Martín, CP 5500, Mendoza, Argentina.
- Facultad de Ingeniería y Facultad de Ciencias Médicas, Universidad de Mendoza, Mendoza, Argentina.
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Pascuali N, Scotti L, Oubiña G, de Zúñiga I, Gomez Peña M, Pomilio C, Saravia F, Tesone M, Abramovich D, Parborell F. Platelet-derived growth factor B restores vascular barrier integrity and diminishes permeability in ovarian hyperstimulation syndrome. Mol Hum Reprod 2021; 26:585-600. [PMID: 32467982 DOI: 10.1093/molehr/gaaa038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 04/08/2020] [Indexed: 01/29/2023] Open
Abstract
Although advances in the prediction and management of ovarian hyperstimulation syndrome (OHSS) have been introduced, complete prevention is not yet possible. Previously, we and other authors have shown that vascular endothelial growth factor, angiopoietins (ANGPTs) and sphingosine-1-phosphate are involved in OHSS etiology. In addition, we have demonstrated that ovarian protein levels of platelet-derived growth factor (PDGF) ligands -B and -D decrease in an OHSS rat model, whilst PDGFR-β and ANGPT2 remain unchanged. In the present work, we investigated the role of PDGF-B in OHSS by evaluating ligand protein levels in follicular fluid (FF) from women at risk of developing OHSS and by using an immature rat model of OHSS. We demonstrated that PDGF-B and PDGF-D are lower in FF from women at risk of developing OHSS compared to control patients (P < 0.05). In the OHSS rat model, PDGF-B (0.5 µg/ovary) administration decreased ovarian weight (P < 0.05), reduced serum progesterone (P < 0.05) and lowered the percentage of cysts (P < 0.05), compared to untreated OHSS rats, but had no effect on the proportion of follicles or corpora lutea (CL). PDGF-B treatment also restored the expression of steroidogenic acute regulatory protein (P < 0.05) and P450 cholesterol side-chain cleavage enzyme (P < 0.01) to control levels. In addition, PDGF-B increased the peri-endothelial cell area in CL and cystic structures, and reduced vascular permeability compared to untreated OHSS ovaries. Lastly, PDGF-B increased the levels of junction proteins claudin-5 (P < 0.05), occludin (P < 0.05) and β-catenin (P < 0.05), while boosting the extracellular deposition of collagen IV surrounding the ovarian vasculature (PP < 0.01), compared to OHSS alone. In conclusion, our findings indicate that PDGF-B could be another crucial mediator in the onset and development of OHSS, which may lead to the development of novel prediction markers and therapeutic strategies.
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Affiliation(s)
- Natalia Pascuali
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Buenos Aires, Argentina
| | - Leopoldina Scotti
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Buenos Aires, Argentina
| | - Gonzalo Oubiña
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Buenos Aires, Argentina
| | | | | | - Carlos Pomilio
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Buenos Aires, Argentina.,Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Flavia Saravia
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Buenos Aires, Argentina.,Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Marta Tesone
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Buenos Aires, Argentina.,Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Dalhia Abramovich
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Buenos Aires, Argentina
| | - Fernanda Parborell
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Buenos Aires, Argentina
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Pascuali N, Scotti L, Di Pietro M, Oubiña G, Bas D, May M, Gómez Muñoz A, Cuasnicú PS, Cohen DJ, Tesone M, Abramovich D, Parborell F. Ceramide-1-phosphate has protective properties against cyclophosphamide-induced ovarian damage in a mice model of premature ovarian failure. Hum Reprod 2019. [PMID: 29534229 DOI: 10.1093/humrep/dey045] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
STUDY QUESTION Is ceramide-1-phosphate (C1P) an ovarian protective agent during alkylating chemotherapy? SUMMARY ANSWER Local administration of C1P drastically reduces ovarian damage induced by cyclophosphamide (Cy) via protection of follicular reserve, restoration of hormone levels, inhibition of apoptosis and improvement of stromal vasculature, while protecting fertility, oocyte quality and uterine morphology. WHAT IS KNOWN ALREADY Cancer-directed therapies cause accelerated loss of ovarian reserve and lead to premature ovarian failure (POF). Previous studies have demonstrated that C1P regulates different cellular processes including cell proliferation, cell migration, angiogenesis and apoptosis. This sphingolipid may be capable of modulating vascular development and apoptosis in ovaries affected by chemotherapy. STUDY DESIGN, SIZE, DURATION The 6-8-week-old mice were weighed and administered either a single intraperitoneal injection of Cy (75 mg/kg) or an equal volume of saline solution only for control mice. Control and Cy mice underwent sham surgery and received an intrabursal injection of saline solution, while Cy + C1P animal groups received 5 μl C1P, either 0.5 or 1 mM, under the bursa of both ovaries 1 h prior to Cy administration. PARTICIPANTS/MATERIALS, SETTING, METHODS Animals were euthanized by cervical dislocation or cardiac puncture 2 weeks after surgery for collection of blood orovary and uterus samples, which were cleaned of adhering tissue in culture medium and used for subsequent assays. Ovaries were used for Western blotting or immunohistochemical and/or histological analyses or steroid extraction, as required (n = 5-8 per group). A set of mice (n = 3/group) was destined for oocyte recovery and IVF. Finally, another set (n = 5-6/group) was separated to study fertility parameters. MAIN RESULTS AND THE ROLE OF CHANCE The number of primordial (P < 0.01), primary (P < 0.05) and preantral follicles (P < 0.05) were decreased in Cy-treated mice compared to control animals, while atretic follicles were increased (P < 0.001). In Cy + C1P mice, the ovaries recovered control numbers of these follicular structures, in both C1P doses studied. Cy affected AMH expression, while it was at least partially recovered when C1P is administered as well. Cy caused an increase in serum FSH concentration (P < 0.01), which was prevented by C1P coadministration (P < 0.01). E2 levels in Cy-treated ovaries decreased significantly compared to control ovaries (P < 0.01), whilst C1P restored E2 levels to those of control ovaries (P < 0.01). Cy increased the expression of BAX (P < 0.01) and decreased the expression of BCLX-L compared to control ovaries (P < 0.01). The ovarian BCLX-L:BAX ratio was also lower in Cy-treated mice (P < 0.05). In the Cy + C1P group, the expression levels of BAX, BCLX-L and BCLX-L:BAX ratio were no different than those in control ovaries. In addition, acid sphingomyelinase (A-SMase) expression was higher in Cy-treated ovaries, whilst remaining similar to the control in the Cy + C1P group. Cy increased the apoptotic index (TUNEL-positive follicles/total follicles) in preantral and early antral stages, compared to control ovaries (P < 0.001 and P < 0.01, respectively). C1P protected follicles from this increase. No primordial or primary follicular cells stained for either cleaved caspase-3 or TUNEL when exposed to Cy, therefore, we have found no evidence for follicular reserve depletion in response to Cy being due to apoptosis. Cy caused evident vascular injury, especially in large cortical stromal vessels, and some neovascularization. In the Cy + C1P group, the disruptions in vascular wall continuity were less evident and the number of healthy stromal blood vessels seemed to be restored. In Cy-treated ovaries α-SMA-positive cells showed a less uniform distribution around blood vessels. C1P coadministration partially prevented this Cy-induced effect, with a higher presence of α-SMA-positive cells surrounding vessels. By H&E staining, Cy-treated mice showed endometrial alterations compared to controls, affecting both epithelial and stromal compartments. However, C1P allowed that the stromal tissue to maintain its loose quality and its glandular branches. Cy-treated animals had significantly lower pregnancy rates and smaller litter sizes compared with control mice (P = 0.013 and P < 0.05, respectively), whereas cotreatment with C1P preserved normal fertility. Furthermore, a higher (P < 0.05) proportion of abnormal oocytes was recovered from Cy-treated mice compared to the control, which was prevented by C1P administration. LARGE SCALE DATA N/A. LIMITATIONS REASONS FOR CAUTION The results of this study were generated from an in-vivo animal experimental model, already used by several authors. Further studies on C1P functions in female reproduction in pathological conditions such as chemotherapy-induced ovarian failure and on the safety of use of this sphingolipid are required. WIDER IMPLICATIONS OF THE FINDINGS The present findings showed that C1P administration prior to Cy might be a promising fertility preservation strategy in female patients who undergo chemotherapy. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by grants from ANPCyT (PICT 2015-1117), CONICET (PIP 380), Cancer National Institute (INC) and Roemmers Foundation, Argentina. The authors declare no conflicts of interest.
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Affiliation(s)
- Natalia Pascuali
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Leopoldina Scotti
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Mariana Di Pietro
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Gonzalo Oubiña
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Diana Bas
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - María May
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Antonio Gómez Muñoz
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Patricia S Cuasnicú
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Débora J Cohen
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Marta Tesone
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Dalhia Abramovich
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Fernanda Parborell
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
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Genome-wide screening differential long non-coding RNAs expression profiles discloses its roles involved in OHSS development. J Assist Reprod Genet 2018; 35:1473-1482. [PMID: 29869218 DOI: 10.1007/s10815-018-1199-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 04/25/2018] [Indexed: 10/14/2022] Open
Abstract
OBJECTIVE To screen differentially expressed lncRNAs involved in OHSS. OHSS is defined as ovarian hyperstimulation syndrome. It is characterized as enlarged ovary and increased vascular permeability. DESIGN Case-control study. SETTING University-affiliated hospital. PATIENT(S) Patients with OHSS high risk (n = 30) and low risk (n = 30) were included in this study. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) LncRNAs from women with OHSS high risk and low risk were used for high-throughput sequencing profiling. The eight most differentially expressed lncRNAs in granulosa cells were validated by semi-quantitative reverse transcription-polymerase chain reaction analysis. RESULT(S) A total of 23,815 lncRNAs were detected and 482 were differentially expressed (fold-change ≥2; p < 0.05, FDR value < 0.001), of which 205 were upregulated and 277 were downregulated. Lnc-SEC16B.1-6, lnc-SNURF-13, lnc-LGR6-6, and lnc-H2AFY2-2 were up-regulated, while lnc-BRD2-2, lnc-HSPA6-2, and lnc-CLIC6-5 were downregulated significantly in granulosa cells. These results were confirmed by qRT-PCR. KEGG pathways and Gene Ontology enrichment analysis revealed that several biological processes were significantly associated. Meanwhile, the lncRNA/miRNA interaction network was established according to ceRNA network model. CONCLUSION(S) Comprehensive expression screening identified eight novel lncRNAs associated with risk factors of OHSS process. Although it is unclear how these altered lncRNAs regulate the process of OHSS, our findings suggest these lncRNAs may be novel players in OHSS development.
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Garcia Santos FA, Freire SA, Vieira DP, Papa PDC, de Barros GF, Castilho C, Guaberto LM, Souza LFAD, Laposy CB, Nogueira RMB, Santos ADO, Giometti IC. White tea intake interferes with the expression of angiogenic factors in the corpora lutea of superovulated rats. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.13750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Francislaine Anelize Garcia Santos
- Faculdade de Medicina Veterinária e Zootecnia; Universidade de São Paulo (USP); Av. Prof°. Dr, Orlando Marques Paiva, 87 São Paulo (SP) CEP: 05508-270 Brazil
| | - Samuel Aparecido Freire
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Deyvid Parreira Vieira
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Paula de Carvalho Papa
- Faculdade de Medicina Veterinária e Zootecnia; Universidade de São Paulo (USP); Av. Prof°. Dr, Orlando Marques Paiva, 87 São Paulo (SP) CEP: 05508-270 Brazil
| | - Gabriela Fernandes de Barros
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Caliê Castilho
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Luciana Machado Guaberto
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Lilian Francisco Arantes de Souza
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Cecília Braga Laposy
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Rosa Maria Barilli Nogueira
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Aline de Oliveira Santos
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
| | - Ines Cristina Giometti
- Universidade do Oeste Paulista (UNOESTE); Campus II, Rod. Raposo Tavares, Km 572, Bairro Limoeiro Presidente Prudente (SP) 19067-175 Brazil
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Zhang L, Feng T, Spicer LJ. The role of tight junction proteins in ovarian follicular development and ovarian cancer. Reproduction 2018; 155:R183-R198. [PMID: 29374086 DOI: 10.1530/rep-17-0503] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 01/26/2018] [Indexed: 01/01/2023]
Abstract
Tight junctions (TJ) are protein structures that control the transport of water, ions and macromolecules across cell layers. Functions of the transmembrane TJ protein, occluding (OCLN) and the cytoplasmic TJ proteins, tight junction protein 1 (TJP1; also known as zona occludens protein-1), cingulin (CGN) and claudins (CLDN) are reviewed, and current evidence of their role in the ovarian function is reviewed. Abundance of OCLN, CLDNs and TJP1 mRNA changed during follicular growth. In vitro treatment with various growth factors known to affect ovarian folliculogenesis indicated that CGN, OCLN and TJP1 are hormonally regulated. The summarized studies indicate that expression of TJ proteins (i.e., OCLN, CLDN, TJP1 and CGN) changes with follicle size in a variety of vertebrate species but whether these changes in TJ proteins are increased or decreased depends on species and cell type. Evidence indicates that autocrine, paracrine and endocrine regulators, such as fibroblast growth factor-9, epidermal growth factor, androgens, tumor necrosis factor-α and glucocorticoids may modulate these TJ proteins. Additional evidence presented indicates that TJ proteins may be involved in ovarian cancer development in addition to normal follicular and luteal development. A model is proposed suggesting that hormonal downregulation of TJ proteins during ovarian follicular development could reduce barrier function (i.e., selective permeability of molecules between theca and granulosa cells) and allow for an increase in the volume of follicular fluid as well as allow additional serum factors into the follicle that may directly impact granulosa cell functions.
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Affiliation(s)
- Lingna Zhang
- Department of Animal ScienceOklahoma State University, Stillwater, Oklahoma, USA
| | - Tao Feng
- Institute of Animal Husbandry and Veterinary MedicineBeijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Leon J Spicer
- Department of Animal ScienceOklahoma State University, Stillwater, Oklahoma, USA
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Matkar PN, Ariyagunarajah R, Leong-Poi H, Singh KK. Friends Turned Foes: Angiogenic Growth Factors beyond Angiogenesis. Biomolecules 2017; 7:biom7040074. [PMID: 28974056 PMCID: PMC5745456 DOI: 10.3390/biom7040074] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/15/2017] [Accepted: 09/22/2017] [Indexed: 12/13/2022] Open
Abstract
Angiogenesis, the formation of new blood vessels from pre-existing ones is a biological process that ensures an adequate blood flow is maintained to provide the cells with a sufficient supply of nutrients and oxygen within the body. Numerous soluble growth factors and inhibitors, cytokines, proteases as well as extracellular matrix proteins and adhesion molecules stringently regulate the multi-factorial process of angiogenesis. The properties and interactions of key angiogenic molecules such as vascular endothelial growth factors (VEGFs), fibroblast growth factors (FGFs) and angiopoietins have been investigated in great detail with respect to their molecular impact on angiogenesis. Since the discovery of angiogenic growth factors, much research has been focused on their biological actions and their potential use as therapeutic targets for angiogenic or anti-angiogenic strategies in a context-dependent manner depending on the pathologies. It is generally accepted that these factors play an indispensable role in angiogenesis. However, it is becoming increasingly evident that this is not their only role and it is likely that the angiogenic factors have important functions in a wider range of biological and pathological processes. The additional roles played by these molecules in numerous pathologies and biological processes beyond angiogenesis are discussed in this review.
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Affiliation(s)
- Pratiek N Matkar
- Division of Cardiology, Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | | | - Howard Leong-Poi
- Division of Cardiology, Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Krishna K Singh
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada.
- Division of Vascular Surgery, Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada.
- Department of Surgery, University of Toronto, Toronto, ON M5S 1A8, Canada.
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Scotti L, Di Pietro M, Pascuali N, Irusta G, I de Zúñiga, Gomez Peña M, Pomilio C, Saravia F, Tesone M, Abramovich D, Parborell F. Sphingosine-1-phosphate restores endothelial barrier integrity in ovarian hyperstimulation syndrome. Mol Hum Reprod 2016; 22:852-866. [PMID: 27645281 DOI: 10.1093/molehr/gaw065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 07/15/2016] [Accepted: 09/06/2016] [Indexed: 12/12/2022] Open
Abstract
STUDY QUESTION Are follicular fluid (FF) sphingosine-1-phosphate (S1P) levels in patients at risk of developing ovarian hyperstimulation syndrome (OHSS) altered and in part responsible for the high vascular permeability observed in these patients. STUDY ANSWER FF S1P levels are lower in FF from patients at risk of OHSS and treatment with S1P may reduce vascular permeability in these patients. WHAT IS KNOWN ALREADY Although advances have been made in the diagnosis, and management of OHSS and in basic knowledge of its development, complete prevention has proven difficult. STUDY DESIGN, SIZE, DURATION A total of 40 FF aspirates were collected from patients undergoing ART. The women (aged 25-39 years old) were classified into a control group (n = 20) or a group at risk of OHSS (n = 20). The EA.hy926 endothelial cell line was used to assess the efffects of FF from patients at risk of OHSS with or without the addition of S1P. An animal model that develops OHSS in immature Sprague-Dawley rats were also used. PARTICIPANTS/MATERIALS, SETTING, METHODS Migration assays, confocal microscopy analysis of actin filaments, immunoblotting and quail chorioallantoic membrane (CAM) assays of in-vivo angiogenesis were performed and statistical comparisons between groups were made. MAIN RESULTS AND THE ROLE OF CHANCE The S1P concentration was significantly lower in FF from patients at risk of OHSS (P = 0.03). The addition of S1P to this FF decreased cell migration (P < 0.05) and prevented VE-cadherin phosphorylation in endothelial cells (P < 0.05). S1P in the FF from patients at risk of OHSS increased the levels of VE-cadherin (P < 0.05), N-cadherin (P < 0.05) and β-catenin (P < 0.05), and partially reversed actin redistribution in endothelial cells. The addition of S1P in FF from patients at risk of OHSS also decreased the levels of vascular endothelial growth factor (VEGF121; P < 0.01) and S1P lyase (SPL; P < 0.05) and increased the levels of S1PR1 (P < 0.05) in endothelial cells. In CAMs incubated with FF from patients at risk of OHSS with S1P, the number of vessel branch points decreased while the periendothelial cell coverage increased. Additionally, in a rat OHSS model, we demonstrated that vascular permeability and VEGF121 and its receptor KDR expression were increased in the OHSS group compared to the control group and that S1P administration decreased these parameters. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The results of this study were generated from an in-vitro system. This model reflects the microvasculature in vivo. Even though the ideal model would be the use of human endothelial cells from the ovary, it is obviously not possible to carry out this kind of approach in ovaries of patients from ART. More studies will be necessary to delineate the effects of S1P in the pathogenesis of OHSS. Hence, clinical studies are needed in order to choose the most appropriate method of prevention and management. WIDER IMPLICATIONS OF THE FINDINGS The use of bioactive sphingolipid metabolites may contribute to finding better and safer therapeutic strategies for the treatment of OHSS and other human diseases that display aberrant vascular leakage. STUDY FUNDING/COMPETING INTERESTS This work was supported by grants ANPCyT (PICT 2012-897), CONICET (PIP 5471), Roemmers and Baron Foundation, Argentina. The authors declare no conflict of interest.
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Affiliation(s)
- L Scotti
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - M Di Pietro
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - N Pascuali
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - G Irusta
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - I de Zúñiga
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires , Argentina
| | - M Gomez Peña
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires , Argentina
| | - C Pomilio
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina.,Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires , Argentina
| | - F Saravia
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina.,Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires , Argentina
| | - M Tesone
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina.,Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires , Argentina
| | - D Abramovich
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - F Parborell
- Instituto de Biología y Medicina Experimental (IByME) - CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
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9
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Trau HA, Brännström M, Curry TE, Duffy DM. Prostaglandin E2 and vascular endothelial growth factor A mediate angiogenesis of human ovarian follicular endothelial cells. Hum Reprod 2016; 31:436-44. [PMID: 26740577 DOI: 10.1093/humrep/dev320] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 11/26/2015] [Indexed: 01/12/2023] Open
Abstract
STUDY QUESTION Which receptors for prostaglandin E2 (PGE2) and vascular endothelial growth factor A (VEGFA) mediate angiogenesis in the human follicle around the time of ovulation? SUMMARY ANSWER PGE2 and VEGFA act via multiple PGE2 receptors (PTGERs) and VEGF receptors (VEGFRs) to play complementary roles in follicular angiogenesis. WHAT IS KNOWN ALREADY Production of PGE2 and VEGFA by the follicle are prerequisites for ovulation. PGE2 is an emerging regulator of angiogenesis and has not been examined in the context of the human ovulatory follicle. VEGFA is an established regulator of follicular angiogenesis. STUDY DESIGN, SIZE, DURATION Ovarian biopsies containing the ovulatory follicle were obtained from 11 women of reproductive age (30-45 years) undergoing surgery for laparoscopic sterilization. In some cases, women received hCG to substitute for the ovulatory LH surge before ovarian biopsy. In addition, aspirates from four women of reproductive age (18-31 years) undergoing gonadotrophin stimulation for oocyte donation were obtained for isolation of human ovarian microvascular endothelial cells (hOMECs). PARTICIPANTS/MATERIALS, SETTING, METHODS Ovarian biopsies were utilized for immunocytochemical detection of von Willebrand factor to identify endothelial cells. hOMECs were cultured with PGE2, PTGER receptor selective agonists, VEGFA, or VEGFR selective agonists. hOMECs were assessed for proliferation by Ki67 immunocytochemistry. hOMEC migration was determined by counting cells which migrated through a porous membrane in vitro. Sprout formation was quantified by determining sprout number and length from photographs take after culture of hOMECs in a 3-dimensional matrix. MAIN RESULTS AND THE ROLE OF CHANCE Endothelial cells were not observed within the granulosa cell layer of human ovulatory follicles prior to an ovulatory dose of hCG and were first seen amongst granulosa cells 18-34 h after hCG. In vitro, PGE2 enhanced migration and sprout formation but did not alter hOMEC proliferation. Agonists selective for each PTGER increased migration with no change in proliferation. PTGER1 and PTGER2 agonists increased the number of sprouts, while only PTGER1 affected sprout length. VEGFA increased hOMEC proliferation, migration, and formation of structures resembling capillary sprouts. Signaling through VEGFR1 promoted hOMEC migration, proliferation, and the formation of few, long endothelial cell sprouts, while VEGFR2 stimulation promoted hOMEC migration and the formation of many, short sprouts. All effects of treatments in vitro were considered significant at P < 0.05. LIMITATIONS, REASONS FOR CAUTION While primary cultures of hOMECs respond to PGE2 and VEGFA differently than other cultured endothelial cells, hOMECs may not respond to PGE2 and VEGFA in vivo as they do in vitro. WIDER IMPLICATIONS OF THE FINDINGS Agonists and antagonists selective for PTGER1, PTGER2, VEGFR1, or VEGFR2 may have therapeutic value to promote or prevent ovulation in women. STUDY FUNDING/COMPETING INTERESTS This research was supported by grant funding from the Eunice Kennedy Shriver National Institutes of Child Health and Human Development (HD071875 to D.M.D., T.E.C., M.B.). The authors have no conflicts of interest to disclose.
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Affiliation(s)
- Heidi A Trau
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, VA 23501, USA
| | - Mats Brännström
- Department of Obstetrics and Gynecology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Thomas E Curry
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Diane M Duffy
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, VA 23501, USA
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10
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Wang J, Shu M, Wen X, Wang Y, Wang Y, Hu Y, Lin Z. Discovery of vascular endothelial growth factor receptor tyrosine kinase inhibitors by quantitative structure–activity relationships, molecular dynamics simulation and free energy calculation. RSC Adv 2016. [DOI: 10.1039/c6ra03743g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Employing the combined strategy to understand the features of KDR–ligands complexes, and provide a basis for rational design of inhibitors.
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Affiliation(s)
- Juan Wang
- School of Pharmacy and Bioengineering
- Chongqing University of Technology
- Chongqing 400054
- China
- Key Laboratory of Biorheological Science and Technology (Ministry of Education)
| | - Mao Shu
- School of Pharmacy and Bioengineering
- Chongqing University of Technology
- Chongqing 400054
- China
| | - Xiaorong Wen
- School of Pharmacy and Bioengineering
- Chongqing University of Technology
- Chongqing 400054
- China
| | - Yuanliang Wang
- Key Laboratory of Biorheological Science and Technology (Ministry of Education)
- Research Center of Bioinspired Material Science and Engineering
- Bioengineering College
- Chongqing University
- Chongqing 400044
| | - Yuanqiang Wang
- School of Pharmacy and Bioengineering
- Chongqing University of Technology
- Chongqing 400054
- China
| | - Yong Hu
- School of Pharmacy and Bioengineering
- Chongqing University of Technology
- Chongqing 400054
- China
| | - Zhihua Lin
- School of Pharmacy and Bioengineering
- Chongqing University of Technology
- Chongqing 400054
- China
- College of Chemistry and Chemical Engineering
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