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Vieira ARS, Pereira Bersano LMC, Brandão FAS, Barros CHSC, Sousa FCD, Rodrigues ALDS, Alves BG, Gomes FDR, Rodrigues APR, Teixeira DÍA. Heterotopic ovarian allotransplantation in a caprine model: Effects of implant site on morphological parameters. Anim Reprod Sci 2024; 267:107509. [PMID: 38878559 DOI: 10.1016/j.anireprosci.2024.107509] [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: 11/01/2023] [Revised: 01/30/2024] [Accepted: 05/17/2024] [Indexed: 07/12/2024]
Abstract
This study aimed to investigate a new implantation site (intra-auricular subcutaneous - IA) compared to intramuscular (IM) in the cervical portion (cervical splenius muscle) of the neck for ovarian transplantation in goats. Morphological aspects of the implant, follicular activation and morphology, and type I and III collagen deposits of the transplanted tissue were evaluated. Four fragments of the ovarian cortex were allotransplanted at the IA and IM sites in all goat recipients and recovered 7 (IA-7; IM-7) or 15 (IA-15; IM-15) days later and submitted to histological analysis. Two fragments/animal were separated for the fresh control (FC) group. There was a higher percentage of normal and developing primordial follicles at the IA-7 site (P < 0.05) compared to the other treatments, with similar values to the fresh control. Type I and III collagen fibers differed between the groups (P < 0.05), showing a considerable decrease in type I collagen fibers at the IA-7 site compared to the FC. However, the IM-7 and IA-15 sites showed higher values of type I collagen fibers, showing similarity to the FC. Therefore, we conclude that the IA site in goats is an effective site for ovarian tissue transplantation, as it is easily accessible, low invasive and has presented satisfactory rates of morphology and follicular activation.
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Affiliation(s)
- Antonio Renilson Sousa Vieira
- Laboratory of Diagnostic Imaging Applied to Animal Reproduction, State University of Ceará - UECE, Fortaleza, CE, Brazil
| | | | | | | | | | - Ana Luiza de Sousa Rodrigues
- Laboratory of Diagnostic Imaging Applied to Animal Reproduction, State University of Ceará - UECE, Fortaleza, CE, Brazil
| | | | | | - Ana Paula Ribeiro Rodrigues
- Laboratory of Manipulation of Oocyte and Ovarian Preantral Follicles - LAMOFOPA - UECE, Fortaleza, CE, Brazil
| | - Dárcio Ítalo Alves Teixeira
- Laboratory of Diagnostic Imaging Applied to Animal Reproduction, State University of Ceará - UECE, Fortaleza, CE, Brazil.
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2
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Crespo D, Fjelldal PG, Hansen TJ, Kjærner-Semb E, Skaftnesmo KO, Thorsen A, Norberg B, Edvardsen RB, Andersson E, Schulz RW, Wargelius A, Kleppe L. Loss of bmp15 function in the seasonal spawner Atlantic salmon results in ovulatory failure. FASEB J 2024; 38:e23837. [PMID: 39031536 DOI: 10.1096/fj.202400370r] [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: 02/16/2024] [Revised: 06/15/2024] [Accepted: 07/10/2024] [Indexed: 07/22/2024]
Abstract
Bone morphogenetic protein 15 (BMP15) is an oocyte-specific growth factor important for successful female reproduction in mammals. While mutations in BMP15/Bmp15 cause ovulatory deficiency and/or infertility in certain mammalian species, loss of bmp15 in zebrafish, a continuous spawner and the only bmp15 knockout model in fish to date, results in complete arrest of follicle development and later female-to-male sex reversal, preventing to examine effects on ovulation/fertilization. Here, we used Atlantic salmon, a seasonal spawner, and generated bmp15 mutants to investigate ovarian development and fertility. Histological and morphometric analyses revealed that in biallelic frameshift (bmp15 fs/fs) mutant ovaries, folliculogenesis started earlier, resulting in an advanced development compared to wild-type (WT) controls, accompanied by a weaker expression of the (early) oocyte-specific factor figla. This precocious ovarian development was followed in bmp15 fs/fs females by enhanced follicle atresia during vitellogenic stages. Although genes involved in steroid synthesis and signaling (star, cyp11b, cyp17a1 and esr1) were dramatically higher in late vitellogenic bmp15 fs/fs mutant ovaries, estradiol-17β plasma levels were lower than in WT counterparts, potentially reflecting compensatory changes at the level of ovarian gene expression. At spawning, bmp15 fs/fs females displayed lower gonado-somatic index values and reduced oocyte diameter, and the majority (71.4%), showed mature non-ovulating ovaries with a high degree of atresia. The remaining (28.6%) females spawned eggs but they either could not be fertilized or, upon fertilization, showed severe malformations and embryonic mortality. Our results show that Bmp15 is required for proper follicle recruitment and growth and later ovulatory success in Atlantic salmon, providing an alternative candidate target to induce sterility in farmed salmon. Moreover, since loss of bmp15 in salmon, in contrast to zebrafish, does not result in female-to-male sex change, this is the first mutant model in fish allowing further investigations on Bmp15-mediated functions in the ovulatory period.
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Affiliation(s)
- Diego Crespo
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
| | - Per Gunnar Fjelldal
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Matre Research Station, Matredal, Norway
| | - Tom J Hansen
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Matre Research Station, Matredal, Norway
| | - Erik Kjærner-Semb
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
| | - Kai Ove Skaftnesmo
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
| | - Anders Thorsen
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
| | - Birgitta Norberg
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Austevoll Research Station, Haukanes, Norway
| | - Rolf B Edvardsen
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
| | - Eva Andersson
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
| | - Rüdiger W Schulz
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
- Reproductive Biology Group, Division Developmental Biology, Department Biology, Science Faculty, Utrecht University, Utrecht, The Netherlands
| | - Anna Wargelius
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
| | - Lene Kleppe
- Research Group Reproduction and Developmental Biology, Institute of Marine Research, Bergen, Norway
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3
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Zhai Y, Zhang X, Zhao C, Geng R, Wu K, Yuan M, Ai N, Ge W. Rescue of bmp15 deficiency in zebrafish by mutation of inha reveals mechanisms of BMP15 regulation of folliculogenesis. PLoS Genet 2023; 19:e1010954. [PMID: 37713421 PMCID: PMC10529593 DOI: 10.1371/journal.pgen.1010954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 09/27/2023] [Accepted: 09/01/2023] [Indexed: 09/17/2023] Open
Abstract
As an oocyte-specific growth factor, bone morphogenetic protein 15 (BMP15) plays a critical role in controlling folliculogenesis. However, the mechanism of BMP15 action remains elusive. Using zebrafish as the model, we created a bmp15 mutant using CRISPR/Cas9 and demonstrated that bmp15 deficiency caused a significant delay in follicle activation and puberty onset followed by a complete arrest of follicle development at previtellogenic (PV) stage without yolk accumulation. The mutant females eventually underwent female-to-male sex reversal to become functional males, which was accompanied by a series of changes in secondary sexual characteristics. Interestingly, the blockade of folliculogenesis and sex reversal in bmp15 mutant could be partially rescued by the loss of inhibin (inha-/-). The follicles of double mutant (bmp15-/-;inha-/-) could progress to mid-vitellogenic (MV) stage with yolk accumulation and the fish maintained their femaleness without sex reversal. Transcriptome analysis revealed up-regulation of pathways related to TGF-β signaling and endocytosis in the double mutant follicles. Interestingly, the expression of inhibin/activin βAa subunit (inhbaa) increased significantly in the double mutant ovary. Further knockout of inhbaa in the triple mutant (bmp15-/-;inha-/-;inhbaa-/-) resulted in the loss of yolk granules again. The serum levels of estradiol (E2) and vitellogenin (Vtg) both decreased significantly in bmp15 single mutant females (bmp15-/-), returned to normal in the double mutant (bmp15-/-;inha-/-), but reduced again significantly in the triple mutant (bmp15-/-;inha-/-;inhbaa-/-). E2 treatment could rescue the arrested follicles in bmp15-/-, and fadrozole (a nonsteroidal aromatase inhibitor) treatment blocked yolk accumulation in bmp15-/-;inha-/- fish. The loss of inhbaa also caused a reduction of Vtg receptor-like molecules (e.g., lrp1ab and lrp2a). In summary, the present study provided comprehensive genetic evidence that Bmp15 acts together with the activin-inhibin system in the follicle to control E2 production from the follicle, Vtg biosynthesis in the liver and its uptake by the developing oocytes.
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Affiliation(s)
- Yue Zhai
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Xin Zhang
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Cheng Zhao
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Ruijing Geng
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Kun Wu
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Mingzhe Yuan
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Nana Ai
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Wei Ge
- Department of Biomedical Sciences and Centre of Reproduction, Development and Aging (CRDA), Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
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Nascimento DR, Barbalho EC, Gondim Barrozo L, de Assis EIT, Costa FC, Silva JRV. The mechanisms that control the preantral to early antral follicle transition and the strategies to have efficient culture systems to promote their growth in vitro. ZYGOTE 2023:1-11. [PMID: 37221099 DOI: 10.1017/s0967199423000254] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Preantral to early antral follicles transition is a complex process regulated by endocrine and paracrine factors, as well as by a precise interaction among oocyte, granulosa cells and theca cells. Understanding the mechanisms that regulate this step of folliculogenesis is important to improve in vitro culture systems, and opens new perspectives to use oocytes from preantral follicles for assisted reproductive technologies. Therefore, this review aims to discuss the endocrine and paracrine mechanisms that control granulosa cell proliferation and differentiation, formation of the antral cavity, estradiol production, atresia, and follicular fluid production during the transition from preantral to early antral follicles. The strategies that promote in vitro growth of preantral follicles are also discussed.
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Affiliation(s)
- D R Nascimento
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceará, Av. Comandante Maurocélio Rocha Ponte 100, CEP 62041-040, Sobral, CE, Brazil
| | - E C Barbalho
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceará, Av. Comandante Maurocélio Rocha Ponte 100, CEP 62041-040, Sobral, CE, Brazil
| | - L Gondim Barrozo
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceará, Av. Comandante Maurocélio Rocha Ponte 100, CEP 62041-040, Sobral, CE, Brazil
| | - E I T de Assis
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceará, Av. Comandante Maurocélio Rocha Ponte 100, CEP 62041-040, Sobral, CE, Brazil
| | - F C Costa
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceará, Av. Comandante Maurocélio Rocha Ponte 100, CEP 62041-040, Sobral, CE, Brazil
| | - J R V Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceará, Av. Comandante Maurocélio Rocha Ponte 100, CEP 62041-040, Sobral, CE, Brazil
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5
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Gomes HAN, Campos LB, Praxedes ÉCG, Oliveira MF, Pereira AF, Silva AR, Saraiva MVA. BMP-15 activity on in vitro development of collared peccary (Pecari tajacu Linnaeus, 1758) preantral follicles. Reprod Domest Anim 2020; 55:958-964. [PMID: 32473042 DOI: 10.1111/rda.13735] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/20/2020] [Indexed: 11/27/2022]
Abstract
This study investigated the effects of BMP-15 on the in vitro development of preantral follicles of collared peccaries. Ovarian fragments were cultured for 1 or 6 days in Tissue Culture Medium 199 (TCM199+ ) supplemented with BMP-15 at rates of 0, 1, 25 or 50 ng/ml. The fragments were analysed histologically by evaluating follicular morphology, activation and growth as well as the potential for proliferation of granulosa cells. Our results show the addition of 25 ng/ml BMP-15 in the medium provided the greatest percentage of normal follicles (79.67% ± 0.69) when compared to other treatments (p < .05); however, this result is similar to 1 ng/ml BMP-15 (74.00% ± 1.90, p > .05). Moreover, 25 and 50 ng/ml of BMP-15 promoted follicular activation. BMP-15 supplements did not affect oocyte and follicular growth. All concentrations of BMP-15 increased the number of nucleolus organizer regions (NORs) after 1 day of culture when compared to fresh fragments or the control samples (p < .05). However, at the end of the experiment, the number of NORs in follicles cultured in all treatments was higher than that observed in the fresh control (sample taken prior to culturing) (p > .05). In summary, the addition of 25 ng/ml BMP-15 to the culture medium of collared peccary preantral follicles maintained a high number of morphologically healthy follicles and stimulated the activation of primordial follicles after 6 days in culture.
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Affiliation(s)
- Henrique A N Gomes
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro-RN, Brazil
| | - Lívia B Campos
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro-RN, Brazil
| | - Érica C G Praxedes
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro-RN, Brazil
| | - Moacir F Oliveira
- Laboratory of Animal Morphophysiology, Federal Rural University of Semi-Arid, Mossoro-RN, Brazil
| | - Alexsandra F Pereira
- Laboratory of Animal Biotechnology, Federal Rural University of Semi-Arid, Mossoro-RN, Brazil
| | - Alexandre R Silva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro-RN, Brazil
| | - Márcia V A Saraiva
- Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid, Mossoro-RN, Brazil
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6
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Xi G, Wang W, Fazlani SA, Yao F, Yang M, Hao J, An L, Tian J. C-type natriuretic peptide enhances mouse preantral follicle growth. Reproduction 2020; 157:445-455. [PMID: 30817314 DOI: 10.1530/rep-18-0470] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/25/2019] [Indexed: 01/03/2023]
Abstract
Compared to ovarian antral follicle development, the mechanism underlying preantral follicle growth has not been well documented. Although C-type natriuretic peptide (CNP) involvement in preantral folliculogenesis has been explored, its detailed role has not been fully defined. Here, we used mouse preantral follicles and granulosa cells (GCs) as a model for investigating the dynamic expression of CNP and natriuretic peptide receptor 2 (NPR2) during preantral folliculogenesis, the regulatory role of oocyte-derived growth factors (ODGFs) in natriuretic peptide type C (Nppc) and Npr2 expression, and the effect of CNP on preantral GC viability. Both mRNA and protein levels of Nppc and Npr2 were gradually activated during preantral folliculogenesis. CNP supplementation in culture medium significantly promoted the growth of in vitro-cultured preantral follicles and enhanced the viability of cultured GCs in a follicle-stimulating hormone (FSH)-independent manner. Using adult and prepubertal mice as an in vivo model, CNP pre-treatment via intraperitoneal injection before conventional superovulation also had a beneficial effect on promoting the ovulation rate. Furthermore, ODGFs enhanced Nppc and Npr2 expression in the in vitro-cultured preantral follicles and GCs. Mechanistic study demonstrated that the regulation of WNT signaling and estrogen synthesis may be implicated in the promoting role of CNP in preantral folliculogenesis. This study not only proves that CNP is a critical regulator of preantral follicle growth, but also provides new insight in understanding the crosstalk between oocytes and somatic cells during early folliculogenesis.
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Affiliation(s)
- Guangyin Xi
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Beijing, China
| | - Wenjing Wang
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Beijing, China
| | - Sarfaraz A Fazlani
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Beijing, China.,Lasbela University of Agriculture, Water and Marine Science, Lasbela, Balochistan, Pakistan
| | - Fusheng Yao
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Beijing, China
| | - Mingyao Yang
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Beijing, China
| | - Jing Hao
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Beijing, China
| | - Lei An
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Beijing, China
| | - Jianhui Tian
- Ministry of Agriculture Key Laboratory of Animal Genetics, Breeding and Reproduction, National Engineering Laboratory for Animal Breeding, College of Animal Sciences and Technology, China Agricultural University, Beijing, China
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7
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Chu YL, Xu YR, Yang WX, Sun Y. The role of FSH and TGF-β superfamily in follicle atresia. Aging (Albany NY) 2019; 10:305-321. [PMID: 29500332 PMCID: PMC5892684 DOI: 10.18632/aging.101391] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 02/23/2018] [Indexed: 01/02/2023]
Abstract
Most of the mammalian follicles undergo a degenerative process called “follicle atresia”. Apoptosis of granulosa cells is the main characteristic of follicle atresia. Follicle stimulating hormone (FSH) and the transforming growth factor β (TGF-β) superfamily have important regulatory functions in this process. FSH activates protein kinase A and cooperating with insulin receptor substrates, it promotes the PI3K/Akt pathway which weakens apoptosis. Both Smad or non-Smad signaling of the transforming growth factor β superfamily seem to be related to follicle atresia, and the effect of several important family members on follicle atresia is concluded in this article. FSH and TGF-β are likely to mutually influence each other and what we have already known about the possible underlying molecular mechanism is also discussed below.
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Affiliation(s)
- Yu-Lan Chu
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ya-Ru Xu
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wan-Xi Yang
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi Sun
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
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8
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GDF9-β promotes folliculogenesis in sheep ovarian transplantation onto the chick embryo chorioallantoic membrane (CAM) in cryopreservation programs. Arch Gynecol Obstet 2018; 298:607-615. [PMID: 30003329 DOI: 10.1007/s00404-018-4838-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 06/06/2018] [Indexed: 01/11/2023]
Abstract
PURPOSE Ovarian tissue (OT) cryopreservation is a treatment option for fertility preservation among young cancer patients. However, the procedure may involve a reduction in the GDF9-β expression and a delay in follicular growth after thawing and transplantation. The aim of this study was to evaluate whether supplementation of GDF9-β can compensate the reduction of this factor during the cryopresevation process and promote folliculogenesis after transplantation of thawed sheep ovarian tissue. METHODS Sheep OT was cryopreserved using two methods of vitrification and slow freezing. Fresh and thawed OTs were then transplanted onto chick embryo chorioallantoic membrane (CAM) and then divided into two groups based on the addition of GDF9-β to the grafted tissue. After 5 days of culture, both histological and immunohistological (Ki-67) assessments were performed to evaluate follicular structure, development, and proliferation. The fibrotic and necrotic areas were measured using MICROVISIBLE software. RESULTS Folliculogenesis took place in all culture groups, but was significantly improved only in the +GDF9-β cultured group. Also, better follicular structure was preserved in the aforementioned group (p < 0.05). When GDF9-β was supplemented to the culture medium, more neovascularization (p < 0.05) and better transplantation (p > 0.05) was observed. Furthermore, the areas of fibrosis and necrosis were lower in this group rather than the controls. Follicular proliferative activity was significantly higher only in the slow freezing +GDF9-β cultured group. CONCLUSIONS GDF9-β, as a stimulatory factor, not only promoted the folliculogenesis in the fresh ovarian transplant, but also compensated for its reduction during the cryopreservation process.
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9
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Refining insulin concentrations in culture medium containing growth factors BMP15 and GDF9: An in vitro study of the effects on follicle development of goats. Anim Reprod Sci 2017; 185:118-127. [DOI: 10.1016/j.anireprosci.2017.08.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 05/12/2017] [Accepted: 08/11/2017] [Indexed: 11/20/2022]
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10
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Aguiar FLN, Gastal GDA, Ishak GM, Gastal MO, Teixeira DIA, Feugang JM, Figueiredo JR, Gastal EL. Effects of FSH addition to an enriched medium containing insulin and EGF after long-term culture on functionality of equine ovarian biopsy tissue. Theriogenology 2017; 99:124-133. [PMID: 28708493 DOI: 10.1016/j.theriogenology.2017.04.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 04/24/2017] [Accepted: 04/27/2017] [Indexed: 12/12/2022]
Abstract
The effect of FSH supplementation on an enriched cultured medium containing insulin (10 ng/mL) and EGF (50 ng/mL) was investigated on in vitro culture of equine ovarian biopsy tissue. Ovarian tissue fragments were collected from mares (n = 10) and distributed in the following treatments: noncultured control, cultured control, and cultured + FSH. Both treated groups were cultured for 7 or 15 days. The end points evaluated were: follicular morphology, estradiol levels in the culture medium, fluorescence intensity for TUNEL, EGFR and Ki-67 detection, and gene expression of GDF-9, BMP-15, and Cyclin-D2 in the ovarian tissue. After seven days of culture, medium supplemented with FSH had a similar (P > 0.05) percentage of morphologically normal follicles compared to the noncultured control group. Estradiol levels increased (P < 0.05) from Day 7 to Day 15 of culture for both treated groups. No difference (P > 0.05) was observed for TUNEL and EGFR intensity between the noncultured control group and the treated groups after 15 days of culture. Ki-67 intensity did not differ (P > 0.05) between treated groups after 15 days of culture, but decreased (P < 0.05) when compared with the noncultured control group. Similar (P > 0.05) mRNA expression for GDF-9, BMP-15, and Cyclin-D2 was observed among all treatments after 15 days of culture. In conclusion, an enriched medium supplemented or not with FSH was able to maintain the functionality of equine ovarian biopsy tissue after a long-term in vitro culture.
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Affiliation(s)
- F L N Aguiar
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, Ceará, Brazil; Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - G D A Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - G M Ishak
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - M O Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - D I A Teixeira
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, Ceará, Brazil
| | - J M Feugang
- Department of Animal and Dairy Sciences, Mississippi State University, MS, USA
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, Ceará, Brazil
| | - E L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA.
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11
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Leiva-Revilla J, Lima LF, Castro SV, Campello CC, Araújo VR, Celestino JJDH, Pessoa ODL, Silveira ER, Rodrigues APR, Figueiredo JR. Fraction of Auxemma oncocalyx and Oncocalyxone A Affects the In Vitro Survival and Development of Caprine Preantral Follicles Enclosed in Ovarian Cortical Tissue. ACTA ACUST UNITED AC 2016; 23:307-313. [DOI: 10.1159/000450719] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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13
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FSH supplementation to culture medium is beneficial for activation and survival of preantral follicles enclosed in equine ovarian tissue. Theriogenology 2016; 85:1106-12. [DOI: 10.1016/j.theriogenology.2015.11.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 10/15/2015] [Accepted: 11/24/2015] [Indexed: 11/22/2022]
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14
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Silva JRV, van den Hurk R, Figueiredo JR. Ovarian follicle development in vitro and oocyte competence: advances and challenges for farm animals. Domest Anim Endocrinol 2016; 55:123-35. [PMID: 26836404 DOI: 10.1016/j.domaniend.2015.12.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 12/14/2015] [Accepted: 12/31/2015] [Indexed: 10/22/2022]
Abstract
During the last 2 decades, research on in vitro preantral follicle growth and oocyte maturation has delivered fascinating advances concerning the knowledge of processes regulating follicle growth and the developmental competence of oocytes. These advances include (1) information about the role of several hormones and growth factors on in vitro activation of primordial follicles; (2) increased understanding of the intracellular pathway involved in the initiation of primordial follicle growth; (3) the growth of primary and secondary follicles up to antral stages; and (4) production of embryos from oocytes from in vitro grown preantral follicles. This review article describes these advances, especially in regard farm animals, and discusses the reasons that limit embryo production from oocytes derived from preantral follicles cultured in vitro.
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Affiliation(s)
- J R V Silva
- Biotechnology Nucleus of Sobral, Federal University of Ceara, Sobral, CE 62042-280, Brazil.
| | - R van den Hurk
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht 80151, The Netherlands
| | - J R Figueiredo
- Laboratory of Manipulation of Oocytes and Preantral Follicles, Faculty of Veterinary, State University of Ceara, Fortaleza, CE 62700-000, Brazil
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Oocyte maturation and expression pattern of follicular genes during in-vitro culture of vitrified mouse pre-antral follicles. Gene Expr Patterns 2016; 20:63-70. [DOI: 10.1016/j.gep.2015.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/01/2015] [Accepted: 12/11/2015] [Indexed: 11/18/2022]
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16
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Lopes T, Costa J, Ribeiro R, Passos J, Soares M, Alves Filho J, Cunha E, van den Hurk R, Pinheiro A, Silva J. Influence of caprine arthritis encephalitis on expression of ovulation related genes and activation of primordial follicles cultured in presence of phytohemagglutinin, epidermal growth factor or both. Small Rumin Res 2015. [DOI: 10.1016/j.smallrumres.2014.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Abstract
The bone morphogenetic protein (BMP) family consists of several growth factor proteins that belong to the transforming growth factor-β (TGF-β) superfamily. BMPs bind to type I and type II serine-threonine kinase receptors, and transduce signals through the Smad signalling pathway. BMPs have been identified in mammalian ovaries, and functional studies have shown that they are involved in the regulation of oogenesis and folliculogenesis. This review summarizes the role of the BMP system during formation, growth and maturation of ovarian follicles in mammals.
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18
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Mester B, Ritter LJ, Pitman JL, Bibby AH, Gilchrist RB, McNatty KP, Juengel JL, McIntosh CJ. Oocyte expression, secretion and somatic cell interaction of mouse bone morphogenetic protein 15 during the peri-ovulatory period. Reprod Fertil Dev 2015; 27:801-11. [DOI: 10.1071/rd13336] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 01/23/2014] [Indexed: 12/16/2022] Open
Abstract
Bone morphogenetic protein 15 (BMP15) is a key intraovarian growth factor regulating mammalian fertility, yet expression and localisation of different BMP15 protein forms within ovarian follicles around the time of the preovulatory LH surge remains unclear. Using immunoblotting and immunocytochemistry, the present study identified that post-translationally processed BMP15 proregion and mature proteins are increasingly expressed and localised with cumulus and granulosa cells from mice treated with pregnant mare’s serum gonadotropin (PMSG) + human chorionic gonadotrophin (hCG). However, this increased expression was absent in cumulus–oocyte complexes matured in vitro. Pull-down assays further revealed that the recombinant BMP15 proregion is capable of specific interaction with isolated granulosa cells. To verify an oocyte, and not somatic cell, origin of Bmp15 mRNA and coregulated growth differentiation factor 9 (Gdf9), in situ hybridisation and quantitative polymerase chain reaction results confirmed the exclusive oocyte localisation of Bmp15 and Gdf9, regardless of treatment or assay method. Relative oocyte expression levels of Bmp15 and Gdf9 decreased significantly after PMSG + hCG treatment; nevertheless, throughout all treatments, the Bmp15 : Gdf9 mRNA expression ratio remained unchanged. Together, these data provide evidence that the preovulatory LH surge leads to upregulation of several forms of BMP15 protein secreted by the oocyte for putative sequestration and/or interaction with ovarian follicular somatic cells.
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19
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Rodrigues G, Lima I, Chaves R, Rossetto R, Costa S, Castro S, Barros V, Matos M, Lopes C, Báo S, Campello C, Figueiredo J. Transforming growth factor-β (TGF-β) maintains follicular ultrastructure and stimulates preantral follicle growth in caprine ovarian tissue cultured in vitro. ARQ BRAS MED VET ZOO 2014. [DOI: 10.1590/1678-41626023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The objectives of this study were to investigate whether TGF-β affect the survival, activation and further growth of goat primordial follicles enclosed in ovarian cortex after in vitro culture. Goat ovaries were collected from an abattoir and pieces of ovarian tissues were cultured for one or seven days in a supplemented alpha Minimum Essential Medium, alone or containing TGF-β (1, 5, 10 or 50ng/mL). Ovarian tissues from the fresh control as well as those cultured were processed for histological and ultrastructural studies. The results showed that when compared with fresh control, there was decrease in the percentages of histologically normal follicles in all treatments only after seven days culture. TGF-β did not affect the activation of preantral follicles regardless of its concentration, however, larger follicles diameter (P<0.05) was observed using 10ng/mL TGF-β than in the fresh control and other treatments. Moreover, this concentration maintained the normal ultrastructure after seven days of culture. In conclusion, TGF-β showed additional effect on the follicle growth and the maintenance of ultrastructural integrity of goat preantral follicles enclosed in ovarian tissue when used at 10ng/mL during seven days of culture.
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20
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Portela A, Ribeiro R, Costa J, Rossi R, Passos J, Vasconcelos G, Donato M, Peixoto C, Saraiva M, van den Hurk R, Silva J. Effects of different concentrations of concanavalin A and follicle stimulating hormone on goat primordial follicles activation, survival and gene expression. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2013.10.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Silva L, Oliveira C, Silva A, Silva C, Castro S, Carvalho A, Duarte A, Costa E, Feltrin C, Figueiredo J, Rondina D. In vitro development of ovine preantral follicles and oocyte cleavage rate are not affected by long-term ingestion of detoxified castor meal. Small Rumin Res 2013. [DOI: 10.1016/j.smallrumres.2013.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Passos M, Vasconcelos G, Silva A, Brito I, Saraiva M, Magalhães D, Costa J, Donato M, Ribeiro R, Cunha E, Peixoto C, Campello C, Figueiredo J, van den Hurk R, Silva J. Accelerated growth of bovine preantral follicles in vitro after stimulation with both FSH and BMP-15 is accompanied by ultrastructural changes and increased atresia. Theriogenology 2013; 79:1269-77. [DOI: 10.1016/j.theriogenology.2013.02.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 02/22/2013] [Accepted: 02/23/2013] [Indexed: 11/28/2022]
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23
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BMPRIB and BMPRII mRNA expression levels in goat ovarian follicles and the in vitro effects of BMP-15 on preantral follicle development. Cell Tissue Res 2012; 348:225-38. [DOI: 10.1007/s00441-012-1361-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 01/31/2012] [Indexed: 02/04/2023]
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