1
|
Zhu Q, Ma H, Wang J, Liang X. Understanding the Mechanisms of Diminished Ovarian Reserve: Insights from Genetic Variants and Regulatory Factors. Reprod Sci 2024; 31:1521-1532. [PMID: 38347379 DOI: 10.1007/s43032-024-01467-1] [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: 12/07/2023] [Accepted: 01/19/2024] [Indexed: 05/24/2024]
Abstract
Delaying childbearing age has become a trend in modern times, but it has also led to a common challenge in clinical reproductive medicine-diminished ovarian reserve (DOR). Since the mechanism behind DOR is unknown and its clinical features are complex, physicians find it difficult to provide targeted treatment. Many factors affect ovarian reserve function, and existing studies have shown that genetic variants, upstream regulatory genes, and changes in protein expression levels are present in populations with reduced ovarian reserve function. However, existing therapeutic regimens often do not target the genetic profile for more individualized treatment. In this paper, we review the types of genetic variants, mutations, altered expression levels of microRNAs, and other related factors and their effects on the regulation of follicular development, as well as altered DNA methylation. We hope this review will have significant implications for the future treatment of individuals with reduced ovarian reserve.
Collapse
Affiliation(s)
- Qinying Zhu
- The First Clinical Medical College of, Lanzhou University, Lanzhou, China
| | - Hao Ma
- The First Clinical Medical College of, Lanzhou University, Lanzhou, China
| | - Jing Wang
- Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xiaolei Liang
- Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Gansu Provincial Clinical Research Center for Gynecological Oncology, No.1, Donggangxi Rd, Chengguan District, Lanzhou, 730000, China.
| |
Collapse
|
2
|
Gao K, Chen Y, Wang P, Chang W, Cao B, Luo L. GATA4: Regulation of expression and functions in goat granulosa cells. Domest Anim Endocrinol 2024; 89:106859. [PMID: 38810369 DOI: 10.1016/j.domaniend.2024.106859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 05/19/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
GATA4 plays a pivotal role in the reproductive processes of mammals. However, the research on GATA4 in goat ovary is limited. This study aimed to study the expression and function of GATA4 in goat ovary. Utilizing real-time PCR and western blot analysis, we studied the expression and regulatory mechanisms of GATA4 in goat ovary and granulosa cells (GCs). We found that GATA4 was expressed in all follicle types in the goat ovary, with significantly higher levels in GCs of larger follicles (>3 mm) compared to those in smaller follicles (<3 mm). Additionally, we demonstrated that human chorionic gonadotrophin (hCG) induced GATA4 mRNA expression via the activation of PKA, MEK, p38 MAPK, PKC, and PI3K pathways in vitro. Our study also showed that hCG suppressed the levels of miR-200b and miR-429, which in turn directly target GATA4, thereby modulating the basal and hCG-induced expression of GATA4. Functionally, we examined the effect of siRNA-mediated GATA4 knockdown on cell proliferation and hormone secretion in goat GCs. Our results revealed that knockdown of GATA4, miR-200b, and miR-429 suppressed cell proliferation. Moreover, knockdown of GATA4 decreased estradiol and progesterone production by inhibiting the promoter activities of CYP11A1, CYP19A1, HSD3B, and StAR. Collectively, our findings suggest a critical involvement of GATA4 in regulating goat GC survival and steroidogenesis.
Collapse
Affiliation(s)
- Kexin Gao
- Department of Obstetrics, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, Guangdong 518109, PR China
| | - Yeda Chen
- Department of Obstetrics, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, Guangdong 518109, PR China
| | - Peijie Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Wenlin Chang
- Department of Obstetrics, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, Guangdong 518109, PR China
| | - Binyun Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Liqiong Luo
- Department of Obstetrics, Affiliated Longhua People's Hospital, Southern Medical University (Longhua People's Hospital), Shenzhen, Guangdong 518109, PR China.
| |
Collapse
|
3
|
De Assis GG, Murawska-Ciałowicz E. BDNF Modulation by microRNAs: An Update on the Experimental Evidence. Cells 2024; 13:880. [PMID: 38786102 PMCID: PMC11119608 DOI: 10.3390/cells13100880] [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: 03/30/2024] [Revised: 05/06/2024] [Accepted: 05/18/2024] [Indexed: 05/25/2024] Open
Abstract
MicroRNAs can interfere with protein function by suppressing their messenger RNA translation or the synthesis of its related factors. The function of brain-derived neurotrophic factor (BDNF) is essential to the proper formation and function of the nervous system and is seen to be regulated by many microRNAs. However, understanding how microRNAs influence BDNF actions within cells requires a wider comprehension of their integrative regulatory mechanisms. Aim: In this literature review, we have synthesized the evidence of microRNA regulation on BDNF in cells and tissues, and provided an analytical discussion about direct and indirect mechanisms that appeared to be involved in BDNF regulation by microRNAs. Methods: Searches were conducted on PubMed.gov using the terms "BDNF" AND "MicroRNA" and "brain-derived neurotrophic factor" AND "MicroRNA", updated on 1 September 2023. Papers without open access were requested from the authors. One hundred and seventy-one papers were included for review and discussion. Results and Discussion: The local regulation of BDNF by microRNAs involves a complex interaction between a series of microRNAs with target proteins that can either inhibit or enhance BDNF expression, at the core of cell metabolism. Therefore, understanding this homeostatic balance provides resources for the future development of vector-delivery-based therapies for the neuroprotective effects of BDNF.
Collapse
Affiliation(s)
- Gilmara Gomes De Assis
- Department of Restorative Dentistry, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil
| | - Eugenia Murawska-Ciałowicz
- Department of Physiology and Biochemistry, Wroclaw University of Health and Sport Sciences, 51-612 Wrocław, Poland;
| |
Collapse
|
4
|
Jia Y, Liu Y, Wang P, Liu Z, Zhang R, Chu M, Zhao A. NTRK2 Promotes Sheep Granulosa Cells Proliferation and Reproductive Hormone Secretion and Activates the PI3K/AKT Pathway. Animals (Basel) 2024; 14:1465. [PMID: 38791682 PMCID: PMC11117346 DOI: 10.3390/ani14101465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/04/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Neurotrophin receptor B (NTRK2), also named TRKB, belongs to the neurotrophic factor family. Previous studies have shown that NTRK2 is associated with high fertility in mammals. However, the molecular mechanism and regulatory pathway of this neurotrophic factor remain unclear. In this study, NTRK2 overexpression and NTRK2-siRNA were constructed to detect the effects of NTRK2 on the proliferation and hormone secretion of the ovarian granulosa cells (GCs) of sheep. We successfully isolated follicular phase granulosa cells in vitro from the ovaries of sheep in simultaneous estrus, and the immunofluorescence results confirmed that NTRK2 was expressed in the collected cells. Subsequently, the effect of NTRK2 on the proliferation of sheep granulosa cells was examined via cell transfection experiments. The results showed that the expression of CDK4 and CyclinD2 was significantly increased after NTRK2 overexpression, while the opposite trend was observed after the inhibition of NTRK2 expression (p < 0.05). The EdU and CCK-8 assays showed that the proliferation rate of sheep GCs was significantly increased after NTRK2 overexpression, while the opposite trend was observed after the inhibition of NTRK2 expression (p < 0.05). Moreover, NTRK2 significantly increased the expression of steroidogenesis-related genes, including steroidogenic acute regulatory protein (STAR) and hydroxy-δ-5-steroid dehydrogenase (HSD3B1), and cytochrome P450 family 19 subfamily A member 1 (CYP19A1). The ELISA results showed that the secretion levels of E2 and P4 significantly increased after NTRK2 overexpression, while the opposite trend was observed after the inhibition of NTRK2 expression (p < 0.05). Previous studies had confirmed that NTRK2 gene belongs to the PI3K-AKT signaling pathway and participates in the signaling of this pathway. This was demonstrated by protein-protein interaction analysis and NTRK2 belongs to the PI3K-AKT pathway. The modification of PI3K and AKT, markers of the PI3K-AKT pathway, via phosphorylation was increased after NTRK2 overexpression in the sheep GCs, while the opposite trend was observed after the inhibition of NTRK2 expression (p < 0.05). Overall, these results suggest that the NTRK2 gene regulates the proliferation of GCs and the secretion of steroid hormones in sheep, and that it influences the phosphorylation level of the PI3K/AKT signaling pathway. These findings provided a theoretical basis and new perspectives for exploring the regulation of NTRK2 gene in the development of ovine follicles.
Collapse
Affiliation(s)
- Yuhang Jia
- College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China;
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; (Y.L.); (P.W.); (Z.L.); (R.Z.)
| | - Yufang Liu
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; (Y.L.); (P.W.); (Z.L.); (R.Z.)
| | - Peng Wang
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; (Y.L.); (P.W.); (Z.L.); (R.Z.)
| | - Ziyi Liu
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; (Y.L.); (P.W.); (Z.L.); (R.Z.)
| | - Runan Zhang
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; (Y.L.); (P.W.); (Z.L.); (R.Z.)
| | - Mingxing Chu
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; (Y.L.); (P.W.); (Z.L.); (R.Z.)
| | - Ayong Zhao
- College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China;
| |
Collapse
|
5
|
Xiao S, Du J, Yuan G, Luo X, Song L. Granulosa Cells-Related MicroRNAs in Ovarian Diseases: Mechanism, Facts and Perspectives. Reprod Sci 2024:10.1007/s43032-024-01523-w. [PMID: 38594585 DOI: 10.1007/s43032-024-01523-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 03/19/2024] [Indexed: 04/11/2024]
Abstract
MicroRNAs (miRNAs) are a class of short single-stranded, noncoding RNAs that affect the translation of mRNAs by imperfectly binding to homologous 3'UTRs. Research on miRNAs in ovarian diseases is constantly expanding because miRNAs are powerful regulators of gene expression and cellular processes and are promising biomarkers. miRNA mimics, miRNA inhibitors and molecules targeting miRNAs (antimiRs) have shown promise as novel therapeutic agents in preclinical development. Granulosa cells (GCs) are supporting cells for developing oocytes in the ovary. GCs regulate female reproductive health by producing sex hormones and LH receptors. Increasing research has reported the relevance of miRNAs in GC pathophysiology. With in-depth studies of disease mechanisms, there are an increasing number of studies on the biomolecular pathways of miRNAs in gynecology and endocrinology. In the present review, we summarize the different functions of GC-related microRNAs in various ovarian disorders, such as polycystic ovary syndrome, premature ovarian insufficiency, premature ovarian failure and ovarian granulosa cell tumors.
Collapse
Affiliation(s)
- Shengmin Xiao
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
| | - Juan Du
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China
| | - Guanghui Yuan
- Department of Oncology, Hejiang Hospital of Traditional Chinese Medicine, Luzhou, 611137, People's Republic of China
| | - Xiaohong Luo
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China.
| | - Linjiang Song
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, People's Republic of China.
| |
Collapse
|
6
|
Liu K, Zhou X, Li C, Shen C, He G, Chen T, Cao M, Chen X, Zhang B, Chen L. YTHDF2 as a Mediator in BDNF-Induced Proliferation of Porcine Follicular Granulosa Cells. Int J Mol Sci 2024; 25:2343. [PMID: 38397033 PMCID: PMC10889522 DOI: 10.3390/ijms25042343] [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: 01/18/2024] [Revised: 02/12/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
In female mammals, the proliferation and apoptosis of granulosa cells (GCs) are critical in determining the fate of follicles and are influenced by various factors, including brain-derived neurotrophic factor (BDNF). Previous research has shown that BDNF primarily regulates GC proliferation through the PI3K/AKT, NF-kB, and CREB tumour pathways; however, the role of other molecular mechanisms in mediating BDNF-induced GC proliferation remains unclear. In this study, we investigated the involvement of the m6A reader YTH domain-containing family member 2 (YTHDF2) in BDNF-stimulated GC proliferation and its underlying mechanism. GCs were cultured in DMEM medium supplemented with varying BDNF concentrations (0, 10, 30, 75, and 150 ng/mL) for 24 h. The viability, number, and cell cycle of GCs were assessed using the CCK-8 assay, cell counting, and flow cytometry, respectively. Further exploration into YTHDF2's role in BDNF-stimulated GC proliferation was conducted using RT-qPCR, Western blotting, and sequencing. Our findings indicate that YTHDF2 mediates the effect of BDNF on GC proliferation. Additionally, this study suggests for the first time that BDNF promotes YTHDF2 expression by increasing the phosphorylation level of the ERK1/2 signalling pathway. This study offers a new perspective and foundation for further elucidating the mechanism by which BDNF regulates GC proliferation.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Lu Chen
- College of Animal Science, Jilin University, Changchun 130062, China; (K.L.); (X.Z.); (C.L.); (C.S.); (G.H.); (T.C.); (M.C.); (X.C.); (B.Z.)
| |
Collapse
|
7
|
Liu S, Bu Q, Tong J, Wang Z, Cui J, Cao H, Ma H, Cao B, An X, Song Y. miR-486 Responds to Apoptosis and Autophagy by Repressing SRSF3 Expression in Ovarian Granulosa Cells of Dairy Goats. Int J Mol Sci 2023; 24:ijms24108751. [PMID: 37240097 DOI: 10.3390/ijms24108751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
The accumulation of ovarian granulosa cell (GC) apoptosis underlies follicular atresia. By comparing the previous sequencing results, miR-486 was found to be differentially expressed at higher levels in the monotocous goat than in the polytocous goat. Unfortunately, the miRNA-mediated mechanisms by which the GC fate is regulated are unknown in Guanzhong dairy goats. Therefore, we investigated miR-486 expression in small and large follicles, as well as its impact on normal GC survival, apoptosis and autophagy in vitro. Here, we identified and characterized miR-486 interaction with Ser/Arg-rich splicing factor 3 (SRSF3) using luciferase reporter analysis, detecting its role in GC survival, apoptosis and autophagy regulation through qRT-PCR, Western blot, CCK-8, EdU, flow cytometry, mitochondrial membrane potential and monodansylcadaverine, etc. Our findings revealed prominent effects of miR-486 in the regulation of GC survival, apoptosis and autophagy by targeting SRSF3, which might explain the high differential expression of miR-486 in the ovaries of monotocous dairy goats. In summary, this study aimed to reveal the underlying molecular mechanism of miR-486 regulation on GC function and its effect on ovarian follicle atresia in dairy goats, as well as the functional interpretation of the downstream target gene SRSF3.
Collapse
Affiliation(s)
- Shujuan Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Qiqi Bu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Jiashun Tong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Zhanhang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Jiuzeng Cui
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Heran Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Haidong Ma
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong 723001, China
| | - Binyun Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Xiaopeng An
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Yuxuan Song
- College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China
| |
Collapse
|
8
|
Zheng X, Chen L, Chen T, Cao M, Zhang B, Yuan C, Zhao Z, Li C, Zhou X. The Mechanisms of BDNF Promoting the Proliferation of Porcine Follicular Granulosa Cells: Role of miR-127 and Involvement of the MAPK-ERK1/2 Pathway. Animals (Basel) 2023; 13:ani13061115. [PMID: 36978655 PMCID: PMC10044701 DOI: 10.3390/ani13061115] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
As a member of the neurotrophic family, brain-derived neurotrophic factor (BDNF) provides a key link in the physiological process of mammalian ovarian follicle development, in addition to its functions in the nervous system. The emphasis of this study lay in the impact of BDNF on the proliferation of porcine follicular granulosa cells (GCs) in vitro. BDNF and tyrosine kinase B (TrkB, receptor of BDNF) were detected in porcine follicular GCs. Additionally, cell viability significantly increased during the culture of porcine GCs with BDNF (100 ng/mL) in vitro. However, BDNF knockdown in GCs decreased cell viability and S-phase cells proportion-and BDNF simultaneously regulated the expression of genes linked with cell proliferation (CCND1, p21 and Bcl2) and apoptosis (Bax). Then, the results of the receptor blocking experiment showed that BDNF promoted GC proliferation via TrkB. The high-throughput sequencing showed that BDNF also regulated the expression profiles of miRNAs in GCs. The differential expression profiles were obtained by miRNA sequencing after BDNF (100 ng/mL) treatment with GCs. The sequencing results showed that, after BDNF treatment, 72 significant differentially-expressed miRNAs were detected-5 of which were related to cell process and proliferation signaling pathways confirmed by RT-PCR. Furthermore, studies showed that BDNF promoted GCs' proliferation by increasing the expression of CCND1, downregulating miR-127 and activating the ERK1/2 signal pathway. Moreover, BDNF indirectly activated the ERK1/2 signal pathway by downregulating miR-127. In conclusion, BDNF promoted porcine GC proliferation by increasing CCND1 expression, downregulating miR-127 and stimulating the MAPK-ERK1/2 signaling cascade.
Collapse
Affiliation(s)
- Xue Zheng
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
- College of Biological and Pharmaceutical Engineering, Jilin Agricultural Science and Technology University, Jilin 132101, China
| | - Lu Chen
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Tong Chen
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Maosheng Cao
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Boqi Zhang
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Chenfeng Yuan
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Zijiao Zhao
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Chunjin Li
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Xu Zhou
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun 130062, China
| |
Collapse
|
9
|
Yuan C, Cao M, Chen L, Zhao Y, Chen X, Shen C, Li C, Zhou X. Follicular fluid exosomes inhibit BDNF expression and promote the secretion of chemokines in granulosa cells by delivering miR-10b-5p. Theriogenology 2023; 199:86-94. [PMID: 36709652 DOI: 10.1016/j.theriogenology.2023.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/06/2023] [Accepted: 01/14/2023] [Indexed: 01/18/2023]
Abstract
Ovulation is an inflammatory response. Before ovulation, follicle cells release chemokines to recruit immune cells and promote ovulation. The objective of this study was to investigate whether follicular fluid exosomes promote chemokine secretion by granulosa cells (GCs). Porcine follicular fluid exosomes and follicular GCs were isolated in vitro. GCs were treated with follicular fluid exosomes in vitro and the differential gene expression profiles of the exosome-treated and control groups were obtained by transcriptome sequencing. The results showed that, when compared to the controls, the expression of the chemokines CCL2 and CXCL8 was significantly increased, whereas the expression of brain-derived neurotrophic factor (BDNF) was significantly decreased. The miRNA expression profiles in follicular fluid exosomes were obtained by microRNA sequencing. The results showed that exosomes carried many microRNAs, and that miR-10b-5p carried by exosomes could promote the secretion of CCL2 and CXCL8 by targeting BDNF. In conclusion, the present study demonstrates that exosomes promote the secretion of CCL2 and CXCL8 by granulosa cells through the miR-10b-5p/BDNF axis to promote ovulation.
Collapse
Affiliation(s)
- Chenfeng Yuan
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
| | - Maosheng Cao
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
| | - Lu Chen
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
| | - Yun Zhao
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
| | - Xue Chen
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
| | - Caomeihui Shen
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
| | - Chunjin Li
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
| | - Xu Zhou
- College of Animal Sciences, Jilin University, Changchun, 130062, China.
| |
Collapse
|
10
|
Guo L, Huang Q, Zhao J, Liu H, Lu W, Wang J. microRNA-10b promotes the apoptosis of bovine ovarian granulosa cells by targeting plasminogen activator inhibitor-1. Theriogenology 2021; 176:206-216. [PMID: 34627051 DOI: 10.1016/j.theriogenology.2021.09.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/13/2021] [Accepted: 09/30/2021] [Indexed: 10/20/2022]
Abstract
Granulosa cells (GCs) are essential somatic cells in the ovaries, and apoptosis of GCs causes follicular atresia. microRNA-10b (miR-10b) is pivotal for cell apoptosis. However, currently, little is known about the role of miR-10b in bovine ovarian GCs (BGCs). In this study, the effect of miR-10b on the apoptosis of BGCs was investigated. Our results showed that the overexpression of miR-10b could increase the apoptosis rate of BGCs, which is associated with the increased expression of Caspase-3 and decreased expression ratio of Bcl-2/Bax (P < 0.05). Furthermore, plasminogen activator inhibitor-1 (PAI-1) was confirmed to be a validated target of miR-10b in BGCs using dual-luciferase reporter analysis, and transfection of miR-10b mimics decreased the expression of PAI-1 (P < 0.05). In addition, overexpression of PAI-1 significantly inhibited BGC apoptosis (P < 0.05), and PAI-1 could alleviate BGC apoptosis induced by miR-10b (P < 0.05). Subsequently, phosphatidylinositol-3-kinase/protein kinase B (PI3K/AKT) was found to be the downstream pathway of PAI-1 by RNA-Seq analysis and verified by Western blot. Finally, a PI3K/AKT inhibitor (Miltefosine) was used to inhibit the PI3K/AKT pathway, which reversed the inhibitory effect of PAI-1 on the apoptosis of BGCs (P < 0.05), and enhanced the promotion effect of miR-10b on the apoptosis of BGCs (P < 0.05). Our results indicated that miR-10b promotes BGC apoptosis by targeting PAI-1 to regulate the PI3K/AKT pathway.
Collapse
Affiliation(s)
- Lewei Guo
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Jilin, Changchun, 130118, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Qixuan Huang
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Jilin, Changchun, 130118, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Jing Zhao
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Jilin, Changchun, 130118, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Hongyu Liu
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Jilin, Changchun, 130118, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Wenfa Lu
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Jilin, Changchun, 130118, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China.
| | - Jun Wang
- Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Jilin, Changchun, 130118, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China.
| |
Collapse
|
11
|
Ke X, Huang Y, Fu Q, Lane RH, Majnik A. Adverse Maternal Environment Alters MicroRNA-10b-5p Expression and Its Epigenetic Profile Concurrently with Impaired Hippocampal Neurogenesis in Male Mouse Hippocampus. Dev Neurosci 2021; 43:95-105. [PMID: 33940573 DOI: 10.1159/000515750] [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: 05/21/2020] [Accepted: 03/09/2021] [Indexed: 12/28/2022] Open
Abstract
An adverse maternal environment (AME) predisposes adult offspring toward cognitive impairment in humans and mice. However, the underlying mechanisms remain poorly understood. Epigenetic changes in response to environmental exposure may be critical drivers of this change. Epigenetic regulators, including microRNAs, have been shown to affect cognitive function by altering hippocampal neurogenesis which is regulated in part by brain-derived neurotropic factor (BDNF). We sought to investigate the effects of AME on miR profile and their epigenetic characteristics, as well as neurogenesis and BDNF expression in mouse hippocampus. Using our mouse model of AME which is composed of maternal Western diet and prenatal environmental stress, we found that AME significantly increased hippocampal miR-10b-5p levels. We also found that AME significantly decreased DNA methylation and increased accumulations of active histone marks H3 lysine (K) 4me3, H3K14ac, and -H3K36me3 at miR-10b promoter. Furthermore, AME significantly decreased hippocampal neurogenesis by decreasing cell numbers of Ki67+ (proliferation marker), NeuroD1+ (neuronal differentiation marker), and NeuN+ (mature neuronal marker) in the dentate gyrus (DG) region concurrently with decreased hippocampal BDNF protein levels. We speculate that the changes in epigenetic profile at miR-10b promoter may contribute to upregulation of miR-10b-5p and subsequently lead to decreased BDNF levels in a model of impaired offspring hippocampal neurogenesis and cognition in mice.
Collapse
Affiliation(s)
- Xingrao Ke
- Children Mercy Research Institute, Children's Mercy, Kansas City, Missouri, USA
| | - Yingliu Huang
- Department of Neurology, Hainan Provincial People's Hospital, Haikou, China
| | - Qi Fu
- Children Mercy Research Institute, Children's Mercy, Kansas City, Missouri, USA
| | - Robert H Lane
- Children Mercy Research Institute, Children's Mercy, Kansas City, Missouri, USA
| | - Amber Majnik
- Division of Neonatology, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| |
Collapse
|
12
|
Zhang Q, Su J, Kong W, Fang Z, Li Y, Huang Z, Wen J, Wang Y. Roles of miR-10a-5p and miR-103a-3p, Regulators of BDNF Expression in Follicular Fluid, in the Outcomes of IVF-ET. Front Endocrinol (Lausanne) 2021; 12:637384. [PMID: 34054723 PMCID: PMC8150000 DOI: 10.3389/fendo.2021.637384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/09/2021] [Indexed: 11/13/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF), a member of the neurotrophin family, plays critical roles in the physiological process of oocyte mature and IVF outcomes of patients with infertility. However, the regulation of BDNF expression in the microenvironment surrounding the oocyte is still unknown. We initially predicted some microRNA (miRNA) candidates targeting bdnf with a series of bioinformatics analysis tools to determine the underlying regulatory mechanisms of BDNF, particularly the effect of miRNAs on BDNF expression. Then, we assessed whether the expression of these 14 selected miRNAs was negatively associated with BDNF expression in follicular fluid (FF) samples obtained from mature (>18 mm) or immature (<15 mm) follicles. Finally, we used the candidate miRNAs, miR-103a-3p and miR-10a-5p, to further investigate the relationship between their expression in FF and the outcomes of infertile patients undergoing IVF-ET treatment. The results of the bioinformatics analysis revealed 14 miRNAs that might directly regulate BDNF expression and might have a close relationship with oocyte development. BDNF was expressed at significantly lower levels in FF from immature follicles than in FF from mature follicles, and only the expression of miR-103a-3p and miR-10a-5p was negatively correlated with BDNF expression in FF. Moreover, in another cohort of 106 infertile women undergoing IVF-ET treatment, miR-103a-3p or miR-10a-5p expression predicted the developmental status of the corresponding oocytes in which high expression of miR-103a-3p or miR-10a-5p resulted in a poor quality of embryo on days 3 and 5 during the IVF-ET treatment. In conclusion, our study is the first to show that miR-103a-3p or miR-10a-5p negatively affects the maturation of oocytes by regulating the expression of BDNF in human FF. Additionally, the expression levels of miR-103a-3p or miR-10a-5p in FF may predict the outcomes of IVF, which are helpful for improving embryo selection and consequently the IVF success rate in the clinic.
Collapse
Affiliation(s)
- Qiyao Zhang
- Reproductive Medical Center, The Second Hospital Affiliated to Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jinfeng Su
- Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Wei Kong
- Reproductive Medical Center, The Second Hospital Affiliated to Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhou Fang
- Reproductive Medical Center, The Second Hospital Affiliated to Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yan Li
- Reproductive Medical Center, The Second Hospital Affiliated to Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ziqiang Huang
- Reproductive Medical Center, The Second Hospital Affiliated to Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ji Wen
- Reproductive Medical Center, The Second Hospital Affiliated to Shandong University of Traditional Chinese Medicine, Jinan, China
- *Correspondence: Ji Wen, ; Yue Wang,
| | - Yue Wang
- Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Ji Wen, ; Yue Wang,
| |
Collapse
|
13
|
Chow R, Wessels JM, Foster WG. Brain-derived neurotrophic factor (BDNF) expression and function in the mammalian reproductive Tract. Hum Reprod Update 2020; 26:545-564. [PMID: 32378708 DOI: 10.1093/humupd/dmaa008] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/13/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Neurotrophins of the nerve growth factor family are soluble polypeptides that are best known for their role in nerve growth, survival and differentiation in the central nervous system. A growing body of literature shows that neurotrophins and their receptors are also expressed throughout the reproductive tract. OBJECTIVE AND RATIONALE Neurotrophins are key regulatory proteins in reproductive physiology during development and throughout adult life. Of the neurotrophins, the literature describing the expression and function of brain-derived neurotrophic factor (BDNF) and its high-affinity receptor, neurotrophin receptor kinase-2 (NTRK2), has been expanding rapidly. We therefore conducted a systematic inductive qualitative review of the literature to better define the role of the BDNF in the reproductive tract. We postulate that BDNF and NTRK2 are central regulatory proteins throughout the reproductive system. SEARCH METHODS An electronic search of Medline (PubMed) and Web of Science for articles relating to BDNF and the reproductive system was carried out between January 2018 and February 2019. OUTCOMES In the ovary, BDNF expression and levels have been linked with follicle organisation during ovarian development, follicle recruitment and growth and oocyte maturation. In the endometrium, BDNF is involved in cell proliferation and neurogenesis. In contrast, literature describing the role of BDNF in other reproductive tissues is sparse and BDNF-NTRK2 signalling in the male reproductive tract has been largely overlooked. Whilst estradiol appears to be the primary regulator of BDNF expression, we also identified reports describing binding sites for glucocorticoid and myocyte enhancer factor-2, a calcium-response element through activation of an N-methyl-D-aspartate (NMDA) receptor, and aryl hydrocarbon receptor nuclear transporter protein-4 (ARNT) response elements in promoter regions of the BDNF gene. Expression is also regulated by multiple microRNAs and post-translational processing of precursor proteins and intracellular shuttling. BDNF-NTRK2 signalling is modulated through tissue specific receptor expression of either the full-length or truncated NTRK2 receptor; however, the functional importance remains to be elucidated. Dysregulation of BDNF expression and circulating concentrations have been implicated in several reproductive disorders including premature ovarian failure, endometriosis, pre-eclampsia, intra-uterine growth restriction (IUGR) and several reproductive cancers. WIDER IMPLICATIONS We conclude that BDNF and its receptors are key regulatory proteins central to gonadal development, ovarian regulation and uterine physiology, as well as embryo and placenta development. Furthermore, dysregulation of BDNF-NTRK2 in reproductive diseases suggests their potential role as candidate clinical markers of disease and potential therapeutic targets.
Collapse
Affiliation(s)
- R Chow
- Department of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada
| | - J M Wessels
- Department of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada
| | - W G Foster
- Department of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada
| |
Collapse
|
14
|
Alexandri C, Daniel A, Bruylants G, Demeestere I. The role of microRNAs in ovarian function and the transition toward novel therapeutic strategies in fertility preservation: from bench to future clinical application. Hum Reprod Update 2020; 26:174-196. [PMID: 32074269 DOI: 10.1093/humupd/dmz039] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/02/2019] [Accepted: 10/01/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND New therapeutic approaches in oncology have converted cancer from a certain death sentence to a chronic disease. However, there are still challenges to be overcome regarding the off-target toxicity of many of these treatments. Oncological therapies can lead to future infertility in women. Given this negative impact on long-term quality of life, fertility preservation is highly recommended. While gamete and ovarian tissue cryopreservation are the usual methods offered, new pharmacological-based options aiming to reduce ovarian damage during oncological treatment are very attractive. In this vein, advances in the field of transcriptomics and epigenomics have brought small noncoding RNAs, called microRNAs (miRNAs), into the spotlight in oncology. MicroRNAs also play a key role in follicle development as regulators of follicular growth, atresia and steroidogenesis. They are also involved in DNA damage repair responses and they can themselves be modulated during chemotherapy. For these reasons, miRNAs may be an interesting target to develop new protective therapies during oncological treatment. This review summarizes the physiological role of miRNAs in reproduction. Considering recently developed strategies based on miRNA therapy in oncology, we highlight their potential interest as a target in fertility preservation and propose future strategies to make the transition from bench to clinic. OBJECTIVE AND RATIONALE How can miRNA therapeutic approaches be used to develop new adjuvant protective therapies to reduce the ovarian damage caused by cytotoxic oncological treatments? SEARCH METHODS A systematic search of English language literature using PubMed and Google Scholar databases was performed through to 2019 describing the role of miRNAs in the ovary and their use for diagnosis and targeted therapy in oncology. Personal data illustrate miRNA therapeutic strategies to target the gonads and reduce chemotherapy-induced follicular damage. OUTCOMES This review outlines the importance of miRNAs as gene regulators and emphasizes the fact that insights in oncology can inspire new adjuvant strategies in the field of onco-fertility. Recent improvements in nanotechnology offer the opportunity for drug development using next-generation miRNA-nanocarriers. WIDER IMPLICATIONS Although there are still some barriers regarding the immunogenicity and toxicity of these treatments and there is still room for improvement concerning the specific delivery of miRNAs into the ovaries, we believe that, in the future, miRNAs can be developed as powerful and non-invasive tools for fertility preservation.
Collapse
Affiliation(s)
- C Alexandri
- Research Laboratory in Human Reproduction, Faculty of Medicine, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium
| | - A Daniel
- Research Laboratory in Human Reproduction, Faculty of Medicine, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium.,Université de Tours, Faculty of Science and Technology, 37200 Tours, France
| | - G Bruylants
- Engineering of Molecular NanoSystems, Ecole Polytechnique de Bruxelles, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium
| | - I Demeestere
- Research Laboratory in Human Reproduction, Faculty of Medicine, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium.,Fertility Clinic, CUB-Erasme, 1070 Brussels, Belgium
| |
Collapse
|
15
|
Wang P, Liu S, Zhu C, Duan Q, Jiang Y, Gao K, Bu Q, Cao B, An X. MiR-29 regulates the function of goat granulosa cell by targeting PTX3 via the PI3K/AKT/mTOR and Erk1/2 signaling pathways. J Steroid Biochem Mol Biol 2020; 202:105722. [PMID: 32565247 DOI: 10.1016/j.jsbmb.2020.105722] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 05/19/2020] [Accepted: 06/14/2020] [Indexed: 02/07/2023]
Abstract
PTX3, a member of the pentraxin protein family, plays important roles in ovulation as a marker of cumulus cell-oocyte complex expansion. However, the expression and function of PTX3 in goat ovarian GCs remain unclear. We isolated GCs from small and large follicles and found that PTX3 expression was significantly decreased and miR-29 mRNA expression was significantly increased during the growth of antral follicles. MiR-29 decreased PTX3 expression by targeting its 3' untranslated. Furthermore, miR-29 promoted GC proliferation, suppressed steroidogenesis and apoptosis by targeting PTX3 via the activation of the PI3K/AKT/mTOR and Erk1/2 signaling pathways. Treatment with inhibitors also verified these results. Meanwhile, we found that PI3K/AKT/mTOR and Erk1/2 signaling pathways had different role in secretion of E2 and P4 by regulating differently various steroidogenic enzyme (CYP19A1, CYP11A1, StAR and HSD3B) expression. These outcomes indicate the potential role of PTX3 in goat follicular growth and atresia.
Collapse
Affiliation(s)
- Peijie Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Shujuan Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Chao Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Quyu Duan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Yue Jiang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Kexin Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Qiqi Bu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Binyun Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China.
| | - Xiaopeng An
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China.
| |
Collapse
|
16
|
Inoue Y, Munakata Y, Shinozawa A, Kawahara-Miki R, Shirasuna K, Iwata H. Prediction of major microRNAs in follicular fluid regulating porcine oocyte development. J Assist Reprod Genet 2020; 37:2569-2579. [PMID: 32780318 DOI: 10.1007/s10815-020-01909-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/30/2020] [Indexed: 01/13/2023] Open
Abstract
PURPOSE The aim of the present study was to identify key microRNAs (miRNAs) in porcine follicular fluid (FF) that regulate oocyte growth. METHODS miRNAs contained in FF were determined by small RNA-seq of exosome RNA. Upstream regulator miRNA was determined by ingenuity pathway analysis using differentially expressed genes in granulosa cells (GCs) between small follicles (1-2 mm in diameter) and large follicles (3-5 mm), and between follicles containing oocytes of high developmental ability and follicles containing oocytes of low developmental ability. The candidate miRNAs overlapping among the three miRNAs group were determined. Lastly, the effect of supplementation with FF, exosome-depleted FFs, or each miRNA on in vitro oocyte growth was examined. RESULTS The miRNAs determined were miR-17, -27, -92a, and -145. These miRNAs were found in the spent culture medium of oocytes and granulosa cells complexes and serum by small RNA sequencing. Culturing of oocytes and granulosa cells complexes collected from porcine early antral follicles (0.5-0.7 mm in diameter) with FF for 14 days improved oocyte growth; depletion of exosomes from the FFs neutralized the beneficial effect observed. miR-92a mimic increased the antrum formation and diameter, together with acetylated levels of H4K12 in oocytes. In addition, supplementation of miRNA mimics miR-17b, -92a, and -145b improved the rate of chromatin configuration, and miR-17b and -92a mimics improved the developmental ability of oocytes to the blastocyst stage. CONCLUSION miR-17, -92a, and -145 are major miRNA candidates in follicular fluids regulating oocyte growth.
Collapse
Affiliation(s)
- Yuki Inoue
- Department of Animal Sciences, Tokyo University of Agriculture, Kanagawa, 243-0034, Japan
| | - Yasuhisa Munakata
- Department of Animal Sciences, Tokyo University of Agriculture, Kanagawa, 243-0034, Japan
| | - Akihisa Shinozawa
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Ryoka Kawahara-Miki
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Koumei Shirasuna
- Department of Animal Sciences, Tokyo University of Agriculture, Kanagawa, 243-0034, Japan
| | - Hisataka Iwata
- Department of Animal Sciences, Tokyo University of Agriculture, Kanagawa, 243-0034, Japan.
| |
Collapse
|
17
|
Lin X, Pavani KC, Smits K, Deforce D, Heindryckx B, Van Soom A, Peelman L. Bta-miR-10b Secreted by Bovine Embryos Negatively Impacts Preimplantation Embryo Quality. Front Genet 2019; 10:757. [PMID: 31507632 PMCID: PMC6713719 DOI: 10.3389/fgene.2019.00757] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/17/2019] [Indexed: 01/02/2023] Open
Abstract
In a previous study, we found miR-10b to be more abundant in a conditioned culture medium of degenerate embryos compared to that of blastocysts. Here, we show that miR-10b mimics added to the culture medium can be taken up by embryos. This uptake results in an increase in embryonic cell apoptosis and aberrant expression of DNA methyltransferases (DNMTs). Using several algorithms, Homeobox A1 (HOXA1) was identified as one of the potential miR-10b target genes and dual-luciferase assay confirmed HOXA1 as a direct target of miR-10b. Microinjection of si-HOXA1 into embryos also resulted in an increase in embryonic cell apoptosis and downregulation of DNMTs. Cell progression analysis using Madin–Darby bovine kidney cells (MDBKs) showed that miR-10b overexpression and HOXA1 knockdown results in suppressed cell cycle progression and decreased cell viability. Overall, this work demonstrates that miR-10b negatively influences embryo quality and might do this through targeting HOXA1 and/or influencing DNA methylation.
Collapse
Affiliation(s)
- Xiaoyuan Lin
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| | | | - Katrien Smits
- Reproduction, Obstetrics and Herd Health, Ghent University, Ghent, Belgium
| | - Dieter Deforce
- Laboratory for Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Björn Heindryckx
- Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
| | - Ann Van Soom
- Reproduction, Obstetrics and Herd Health, Ghent University, Ghent, Belgium
| | - Luc Peelman
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| |
Collapse
|
18
|
Liu S, Jiang T, Zhong Y, Yu Y. miR-210 inhibits cell migration and invasion by targeting the brain-derived neurotrophic factor in glioblastoma. J Cell Biochem 2019; 120:11375-11382. [PMID: 30746749 DOI: 10.1002/jcb.28414] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 11/22/2018] [Accepted: 11/29/2018] [Indexed: 01/24/2023]
Abstract
Recently, there is increasing evidence that microRNAs are related to the development, diagnosis, treatment, and prognosis of glioblastoma. microRNA-210 (miR-210) had been identified in many human cancers, but the specific function of miR-210 remains unclear in glioblastoma. The present study mainly focused on exploring its biological role and potential molecular mechanisms in glioblastoma. We found that miR-210 expression was decreased in glioblastoma, and downregulation of miR-210 was related to worse prognosis in glioblastoma patients. In addition, miR-210 overexpression inhibited the migration and invasion of human glioblastoma cells. At the same time, we found that miR-210 directly targets the brain-derived neurotrophic factor (BDNF) and reduces BDNF expression level. Consistently, BDNF silencing had the same effects as miR-210 overexpression in glioblastoma, and upregulation of BDNF counteracted the inhibitory effect of miR-210 in glioblastoma. In conclusion, miR-210 suppressed the migration and invasion of glioblastoma cells by targeting BDNF.
Collapse
Affiliation(s)
- Shouyue Liu
- Department of Neurosurgery, Second Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Tao Jiang
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Yingjie Zhong
- Department of Pediatrics, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Yin Yu
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| |
Collapse
|
19
|
Zhang J, Xu Y, Liu H, Pan Z. MicroRNAs in ovarian follicular atresia and granulosa cell apoptosis. Reprod Biol Endocrinol 2019; 17:9. [PMID: 30630485 PMCID: PMC6329178 DOI: 10.1186/s12958-018-0450-y] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/17/2018] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) are short, noncoding RNAs that posttranscriptionally regulate gene expression. In the past decade, studies on miRNAs in ovaries have revealed the key roles of miRNAs in ovarian development and function. In this review, we first introduce the development of follicular atresia research and then summarize genome-wide studies on the ovarian miRNA profiles of different mammalian species. Differentially expressed miRNA profiles during atresia and other biological processes are herein compared. In addition, current knowledge on confirmed functional miRNAs during the follicular atresia process, which is mostly indicated by granulosa cell (GC) apoptosis, is presented. The main miRNA families and clusters, including the let-7 family, miR-23-27-24 cluster, miR-183-96-182 cluster and miR-17-92 cluster, and related pathways that are involved in follicular atresia are thoroughly summarized. A deep understanding of the roles of miRNA networks will not only help elucidate the mechanisms of GC apoptosis, follicular development, atresia and their disorders but also offer new diagnostic and treatment strategies for infertility and other ovarian dysfunctions.
Collapse
Affiliation(s)
- Jinbi Zhang
- 0000 0000 9750 7019grid.27871.3bCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095 People’s Republic of China
| | - Yinxue Xu
- 0000 0000 9750 7019grid.27871.3bCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095 People’s Republic of China
| | - Honglin Liu
- 0000 0000 9750 7019grid.27871.3bCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095 People’s Republic of China
| | - Zengxiang Pan
- 0000 0000 9750 7019grid.27871.3bCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095 People’s Republic of China
| |
Collapse
|
20
|
Chen S, Wang F, Liu Z, Zhao Y, Jiang Y, Chen L, Li C, Zhou X. Brain-derived neurotrophic factor promotes proliferation and progesterone synthesis in bovine granulosa cells. J Cell Physiol 2018; 234:8776-8787. [PMID: 30456817 DOI: 10.1002/jcp.27536] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 09/10/2018] [Indexed: 12/15/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) is involved in regulating the growth of ovarian follicles, maturation of the oocyte, and development of the early embryo through its receptor, tyrosine kinase receptor B (TrkB). However, it is still unclear as to how BDNF influences proliferation and steroidogenesis of bovine granulosa cells (GCs). In this paper, we confirmed that BDNF and TrkB were expressed in bovine GCs, and that proliferation and steroidogenesis by bovine GCs were reduced by knockdown of BDNF or inhibition of TrkB. With respect to GC proliferation, BDNF enhanced cellular viability and the percentage of cells in the S phase. BDNF also activated both protein kinase B (PKB, also known as AKT) and the extracellular signal-regulated protein kinase 1/2 (ERK1/2)-signaling pathway. Through the AKT-signaling pathway, BDNF increased the expression of proliferation-related genes, including cyclin A1 (CCNA1), cyclin E2 (CCNE2), cyclin D1 (CCND1), and cyclin-dependent kinase 1 (CDK1). However, through the ERK1/2 signaling pathway, BDNF only increased the expression of CCNA1 and CCNE2. Regarding steroidogenesis by bovine GCs, BDNF promoted progesterone (P 4 ) synthesis, but had no effect on estradiol; it also activated the AKT-signaling pathway and increased the expression of steroidogenesis-related genes, including steroidogenic acute regulatory protein (STAR) and hydroxy-δ-5-steroid dehydrogenase, 3β- and steroid δ-isomerase 1 (HSD3B1). In summary, our data are the first to show that BDNF promotes the proliferation of bovine GCs through TrkB-AKT and ERK1/2 signaling pathways and increases P4 synthesis by bovine GCs through the TrkB-AKT signaling pathway.
Collapse
Affiliation(s)
- Shuxiong Chen
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun, China
| | - Fengge Wang
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun, China
| | - Zhuo Liu
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun, China
| | - Yun Zhao
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun, China
| | - Yanwen Jiang
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun, China
| | - Lu Chen
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun, China
| | - Chunjin Li
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun, China
| | - Xu Zhou
- Laboratory for Regulation of Reproduction, College of Animal Sciences, Jilin University, Changchun, China
| |
Collapse
|
21
|
MiR-126-3p promotes the cell proliferation and inhibits the cell apoptosis by targeting TSC1 in the porcine granulosa cells. In Vitro Cell Dev Biol Anim 2018; 54:715-724. [PMID: 30341633 DOI: 10.1007/s11626-018-0292-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/30/2018] [Indexed: 12/31/2022]
Abstract
In mammalian ovaries, many studies demonstrated that the proliferation and apoptosis of granulosa cells are involved in folliculogenesis. Previous evidence suggests that miR-126-3p might get involved in the proliferation and apoptosis of granulosa cells, and tuberous sclerosis complex 1 (TSC1) gene was predicted as one target of miR-126-3p, and moreover, granulosa cell-specific TSC1 knockout stimulated folliculogenesis in mice. However, the molecular regulation of miR-126-3p on TSC1 and its effects on cell proliferation and apoptosis remain virtually unexplored in granulosa cells. Using porcine granulosa cells as a model, the luciferase report assay, mutation, deletion, Annexin-V/PI staining, and EdU assays were applied to investigate the molecular mechanism for miR-126-3p regulating the expression of TSC1 and their effects on the cell proliferation and apoptosis. We found that miR-126-3p showed a positive effect on cell proliferation and a negative effect on cell apoptosis in porcine granulosa cells, and knockdown of TSC1 significantly promoted cell proliferation and significantly inhibited cell apoptosis in porcine granulosa cells. Furthermore, miR-126-3p might target and repress the expressions of TSC1 at the post-transcriptional level, thereby promoting cell proliferation and inhibiting cell apoptosis of granulosa cells. These findings would provide of great insight in further exploring the molecular regulation of miR-126-3p and TSC1 on the functions of granulosa cells during the folliculogenesis in mammals.
Collapse
|
22
|
Gao K, Wang P, Peng J, Xue J, Chen K, Song Y, Wang J, Li G, An X, Cao B. Regulation and function of runt-related transcription factors (RUNX1 and RUNX2) in goat granulosa cells. J Steroid Biochem Mol Biol 2018; 181:98-108. [PMID: 29626608 DOI: 10.1016/j.jsbmb.2018.04.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 03/16/2018] [Accepted: 04/03/2018] [Indexed: 12/16/2022]
Abstract
Transcription factors, runt-related transcription factor 1 (RUNX1) and 2 (RUNX2), belong to the runt-related (RUNX) gene family and play critical roles in mammalian reproduction processes. However, the regulatory mechanisms of RUNX1 and RUNX2 expression or their functions in goat follicles remain largely unknown. Herein, RUNX1 and RUNX2 proteins were detected in the oocytes and granulosa cells of preantral and antral follicles, as well as corpus luteum by immunohistochemistry. Treatments with human chorionic gonadotropin (hCG) or with the agonists and inhibitors of hCG-induced intracellular signaling pathways in granulosa cells in vitro, we found that hCG increased RUNX1 expression by activating PKC and PI3K signaling molecules, and increased RUNX2 expression by activating adenylate cyclase, PKC, and PI3K signaling molecules. We also demonstrated that miR-181b expression is dependent on the hCG-induced activation of PKC and PKA, and miR-222 expression is dependent on the hCG-induced activation of PI3K and PKC in cultured granulosa cells. Meanwhile, miR-181b and miR-222 suppressed RUNX1 and RUNX2 expression by targeting RUNX1 and RUNX2 3' untranslated regions (3'UTRs) with or without hCG, respectively. These results suggested that hCG-mediated miR-181b and miR-222 expression are important for the regulation of RUNX1 and RUNX2 expression levels in granulosa cells. To explore the specific functions of RUNX1 and RUNX2, we transfected RUNX1 and RUNX2 small interfering RNAs into primary cultured granulosa cells. Knockdown of RUNX1 and RUNX2 significantly decreased progesterone productions and the mRNA abundance of key steroidogenic enzymes (StAR, CYP11A1 and HSD3B) after hCG treatment. But only miR-222 increased estradiol secretion in goat granulosa cells. In addition, knockdown of RUNX1 and RUNX2 also promoted granulosa cell proliferation. The hormonally regulated expression of RUNX1 and RUNX2 in granulosa cells, their involvement in progesterone production, and promoted granulosa cell proliferation suggest important roles of RUNX1 and RUNX2 in follicular development and luteinization.
Collapse
Affiliation(s)
- Kexin Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Peijie Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Jiayin Peng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Junjun Xue
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Kaiwen Chen
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Yuxuan Song
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Jiangang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Guang Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Xiaopeng An
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
| | - Binyun Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
| |
Collapse
|
23
|
Haikalis ME, Wessels JM, Leyland NA, Agarwal SK, Foster WG. MicroRNA expression pattern differs depending on endometriosis lesion type†. Biol Reprod 2018; 98:623-633. [DOI: 10.1093/biolre/ioy019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 01/23/2018] [Indexed: 12/11/2022] Open
Affiliation(s)
- Maria E Haikalis
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - Jocelyn M Wessels
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - Nicholas A Leyland
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - Sanjay K Agarwal
- Center for Endometriosis Research and Treatment, University of California, San Diego, La Jolla, California, USA
| | - Warren G Foster
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada
- Center for Endometriosis Research and Treatment, University of California, San Diego, La Jolla, California, USA
| |
Collapse
|
24
|
Conserved miR-10 family represses proliferation and induces apoptosis in ovarian granulosa cells. Sci Rep 2017; 7:41304. [PMID: 28112253 PMCID: PMC5256277 DOI: 10.1038/srep41304] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 12/16/2016] [Indexed: 01/06/2023] Open
Abstract
Granulosa cells (GCs) are essential somatic cells in the ovary and play an important role in folliculogenesis. Brain-derived neurotropic factor (BDNF) and the TGF-β pathway have been identified as a critical hormone and signalling pathway, respectively, in GCs. In this study, we found that a conserved microRNA family that includes miR-10a and miR-10b repressed proliferation and induced apoptosis in human, mouse, and rat GCs (hGCs, mGCs and rGCs, respectively). Moreover, essential hormones and growth factors in the follicle, such as FSH, FGF9 and some ligands in the TGF-β pathway (TGFβ1, Activin A, BMP4 and BMP15), inhibited miR-10a and miR-10b expression in GCs. In contrast, the miR-10 family suppressed many key genes in the TGF-β pathway, suggesting a negative feedback loop between the miR-10 family and the TGF-β pathway in GCs. By using bioinformatics approaches, RNA-seq, qPCR, FISH, immunofluorescence, Western blot and luciferase reporter assays, BDNF was identified as a direct target of the miR-10 family in GCs. Additionally, reintroduction of BDNF rescued the effects of miR-10a and miR-10b in GCs. Collectively, miR-10a and miR-10b repressed GC development during folliculogenesis by repressing BDNF and the TGF-β pathway. These effects by the miR-10 family on GCs are conserved among different species.
Collapse
|
25
|
Baddela VS, Onteru SK, Singh D. A syntenic locus on buffalo chromosome 20: novel genomic hotspot for miRNAs involved in follicular-luteal transition. Funct Integr Genomics 2016; 17:321-334. [PMID: 27866284 DOI: 10.1007/s10142-016-0535-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 11/02/2016] [Accepted: 11/04/2016] [Indexed: 12/17/2022]
Abstract
The developmental reorganization of ovarian follicular granulosa cells (GC) during follicular maturation, ovulation, and luteinization require a well-controlled regulation of dynamic gene expression profiles. Recently, microRNAs (miRNAs) were found to be key players of ovarian follicular dynamics. The current study aimed to understand the miRNA regulatory role in follicular-luteal transition by characterizing the miRNA profile through miRNA-seq at different follicular (small, medium, and large) and luteal (early, mid, and late) stages in Indian water buffaloes, mono-ovulatory animals like humans. A total of 517 miRNAs were identified in follicular granulosa cells (GC) and corpus luteum (CL) together. Among them, 2 unique and 40 novel miRNAs were in GC; 15 unique and 45 novel miRNAs were in CL. Among the remaining 415 annotated common miRNAs between GC and CL, 43 have showed significant (p < 0.05) differential expression between GC and CL. Particularly, 39 and 4 miRNAs showed higher expression in CL and GC, respectively, with respect to each other. Genome mapping analysis revealed that 71.7% of differential miRNAs having higher expression in CL compared to GC, and 93% of the unique miRNAs in CL were mapped to a short chromosomal region of 0.7 Mb (67.4 to 68.1 Mb) on chromosome 21 of cows which is syntenic to the buffalo chromosome 20. Clustering of all these miRNAs at this locus suggests it as a chromosomal hotspot for miRNAs involved in follicular-luteal transition, especially for CL physiological functions.
Collapse
Affiliation(s)
- Vijay Simha Baddela
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute (Deemed University), Karnal, 132001, Haryana, India
| | - Suneel Kumar Onteru
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute (Deemed University), Karnal, 132001, Haryana, India
| | - Dheer Singh
- Molecular Endocrinology, Functional Genomics & Systems Biology Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute (Deemed University), Karnal, 132001, Haryana, India.
| |
Collapse
|