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Gao Y, Xu S, Qiao J, Wang C, Wang K, Sun J, Liu L, Li L, Liang M, Hu K. AZIN2 is associated with apoptosis of germ cells in undescended testis. Cells Dev 2024; 179:203925. [PMID: 38797332 DOI: 10.1016/j.cdev.2024.203925] [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: 07/26/2023] [Revised: 04/24/2024] [Accepted: 05/03/2024] [Indexed: 05/29/2024]
Abstract
Undescended testis (UDT), known as cryptorchidism (CRY), is a common congenital disorder in which one or both testicles do not descend normally into the scrotum. A unilateral UDT model was established by inducing UDT in mice through surgery. The results showed that the testis in the UDT model group was abnormal; the lumen of the seminiferous tubule was atrophic; apoptosis, necrosis and shedding were observed in many of the germ cells; the level of sex hormones was abnormal; and mature sperm was reduced. Subsequently, transcriptome sequencing was conducted on the testicular tissue of UDT model mice. Through analysis and verification of differential genes, AZIN2 was identified as playing a key role in the decline in male fertility caused by cryptorchidism. AZIN2 expression and spermine content was down-regulated in the testis of the UDT group. We then used a combination of hypoxanthine and xanthine to create a GC-1 cell damage model. In this model, AZIN2 expression and spermine content was down-regulated. When si-Azin2 transfected GC-1 cells, cell viability and proliferation were decreased. However, in the GC-1 cell damage model transfected with Azin2 over-expressed plasmid, AZIN2 expression and spermine content was up-regulated, reversing the cell damage caused by hypoxanthine and xanthine, and restoring the proliferation ability of GC-1 cells. These results indicate that in UDT, down-regulated AZIN2 expression is a factor in testicular damage. This discussion of the connection between AZIN2 and germ cells has important clinical significance as it provides an important reference for the diagnosis and treatment of cryptorchidism.
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Affiliation(s)
- Yuanyuan Gao
- School of Life Science, Bengbu Medical University, Bengbu, Anhui, People's Republic of China
| | - Shumin Xu
- School of Life Science, Bengbu Medical University, Bengbu, Anhui, People's Republic of China
| | - Jiajun Qiao
- School of Life Science, Bengbu Medical University, Bengbu, Anhui, People's Republic of China
| | - Chen Wang
- School of Life Science, Bengbu Medical University, Bengbu, Anhui, People's Republic of China
| | - Kaixian Wang
- School of Life Science, Bengbu Medical University, Bengbu, Anhui, People's Republic of China
| | - Junpei Sun
- First Affiliated Hospital, Bengbu Medical University, Bengbu, Anhui, People's Republic of China
| | - Lei Liu
- First Affiliated Hospital, Bengbu Medical University, Bengbu, Anhui, People's Republic of China
| | - Leina Li
- School of Life Science, Bengbu Medical University, Bengbu, Anhui, People's Republic of China
| | - Meng Liang
- School of Life Science, Bengbu Medical University, Bengbu, Anhui, People's Republic of China.
| | - Ke Hu
- School of Life Science, Bengbu Medical University, Bengbu, Anhui, People's Republic of China.
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Tang D, Song X, Du Y, Wang J, Lei Y, Chen B. Development of a reporter gene-based assay for the bioactivity determination of rhLH pharmaceutical products. Anal Biochem 2024; 686:115413. [PMID: 38040174 DOI: 10.1016/j.ab.2023.115413] [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: 10/19/2023] [Revised: 11/14/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Abstract
To establish an in vitro biological activity detection method for luteinizing hormone (LH), the hLHCGR-CREB-HEK293 cell line was constructed to stably express human luteinizing hormone/chorionic gonadotropin receptor (hLHCGR). After optimization, the rhLH starting working concentration was 800 mIU/mL with 4-fold serial dilutions, 10 concentrations and an incubation time of 5 h. The method was confirmed to be highly specific, with good accuracy, precision and linearity, meeting the needs of process research and release testing, and can be used as a routine detection method for LH biological activity. With the increasing demand for research and development of rhLH biologically similar drugs, establishing a stable and simple activity assay method to evaluate the biological activity of rhLH can provide technical support for quality control of rhLH products and powerful tools for comparability research of similar products.
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Affiliation(s)
- Defang Tang
- Chengdu Jingze Pharmaceutical Co., Ltd, No.1166 Shuangyan Road, Wenjiang District, Chengdu, 611137, China
| | - Xiufang Song
- Chengdu Jingze Pharmaceutical Co., Ltd, No.1166 Shuangyan Road, Wenjiang District, Chengdu, 611137, China
| | - Yanjiao Du
- Chengdu Jingze Pharmaceutical Co., Ltd, No.1166 Shuangyan Road, Wenjiang District, Chengdu, 611137, China
| | - Jiaxin Wang
- Chengdu Jingze Pharmaceutical Co., Ltd, No.1166 Shuangyan Road, Wenjiang District, Chengdu, 611137, China
| | - Yuqing Lei
- Chengdu Jingze Pharmaceutical Co., Ltd, No.1166 Shuangyan Road, Wenjiang District, Chengdu, 611137, China
| | - Bin Chen
- Chengdu Jingze Pharmaceutical Co., Ltd, No.1166 Shuangyan Road, Wenjiang District, Chengdu, 611137, China.
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Liu J, Yang Y, He Y, Feng C, Ou H, Yang J, Chen Y, You F, Shao B, Bao J, Guan X, Chen F, Zhao P. Erxian decoction alleviates cisplatin-induced premature ovarian failure in rats by reducing oxidation levels in ovarian granulosa cells. JOURNAL OF ETHNOPHARMACOLOGY 2023; 304:116046. [PMID: 36567042 DOI: 10.1016/j.jep.2022.116046] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/26/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANT Erxian Decoction (EXD) has been used empirically for more than 70 years to treat premature ovarian failure (POF), but more research is needed to understand how it works. AIM OF THE RESEARCH The study aims to ascertain both in vivo and in vitro rewards of EXD. MATERIALS AND METHODS EXD is composed of Curculiginis Rhizoma, Epimedii Folium, Morindae Officinalis, Angelicae Sinensis, Anemarrhenae Rhizoma, and Phellodendri Chinensis Cortex. UPLC/MS analysis was used to investigate the components of EXD. Using a POF model created by administering cisplatin to rats intraperitoneally, the pharmacodynamic effects of EXD were investigated. Three dose groups of EXD were garaged into rats: high (15.6 g/kg), medium (7.8 g/kg), and low (3.9 g/kg). By using a vaginal smear, the impact of EXD on the rat estrous cycle was evaluated. An ELISA test was used to measure the anti-Mullerian hormone (AMH), estradiol (E2), follicle-stimulating hormone (FSH), and luteinizing hormone (LH) levels in the serum of rats. By using HE stains, pathological alterations in the ovaries may be seen. MDA and SOD levels in ovarian samples were used to measure the degree of ovarian oxidation. TUNEL labeling of ovarian sections was used to find apoptosis levels. By using ATP, energy production was evaluated. The relative expression of proteins connected to aging and the RAGE pathway was assessed using Western blot. Then, using H2O2, a model of senescent human ovarian granulosa cells (KGN) was created in vitro. The impact of EXD and H2O2 on cellular senescence was discovered using-galactosidase staining. Cell apoptosis levels were found using PI/Hoechest33342. By using DCFH-DA, intracellular ROS was examined. MDA and SOD concentrations were used to measure the degree of cellular oxidation. RAGE-related mRNA and protein expression were evaluated using RT-qPCR and western blotting. RESULTS Using UPLC/MS analysis, 39 chemicals in EXD were found. Rats' estrous cycles were enhanced by EXD, which increased ovarian index and follicle count and reduced the proportion of atretic follicles in the rats. EXD reduced LH and FSH output while restoring AMH and E2 secretion. In ovarian tissues, EXD reduced the amount of apoptosis and MDA while raising SOD activity and ATP levels. The protein levels of p16, p21, p53, and Lamin A/C were among the senescence-related proteins that EXD lowered, along with the levels of RAGE, PI3K, BAX, and CASPASE 3. Anti-apoptotic protein BCL-2 was also raised in the RAGE pathway. Senescence, apoptosis, ROS, and MDA levels in the KGN cells were lowered in vitro by EXD. Additionally, EXD increased the anti-apoptotic potential by changing the expression of CAT, SOD2, and SIRT1. RAGE, BAX, BCL-2, CASPASE 3, and p38 expression levels were altered by EXD, enhancing its anti-apoptotic capability. CONCLUSION EXD boosted the ovary's antioxidant and anti-apoptotic capabilities while enhancing the estrous cycle and hormone output. These findings strongly suggested that EXD may contribute to the alleviation of POF and ovarian granulosa cells senescence.
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Affiliation(s)
- Jiao Liu
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Yang Yang
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Yueshuang He
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Chenran Feng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Haosong Ou
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Jiadi Yang
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Yao Chen
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Fengming You
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Binghao Shao
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Jirong Bao
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Xingyu Guan
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Fangfang Chen
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China
| | - Piwen Zhao
- School of Life Sciences, Beijing University of Chinese Medicine, No.11 East Road, North 3rd Ring Road, Beijing, 100029, China.
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Li Y, Zhang H, Wang Y, Li D, Chen H. Advances in circadian clock regulation of reproduction. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 137:83-133. [PMID: 37709382 DOI: 10.1016/bs.apcsb.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
The mammalian circadian clock is an endogenously regulated oscillator that is synchronized with solar time and cycle within a 24-h period. The circadian clock exists not only in the suprachiasmatic nucleus (SCN) of the hypothalamus, a central pacemaker of the circadian clock system, but also in numerous peripheral tissues known as peripheral circadian oscillators. The SCN and peripheral circadian oscillators mutually orchestrate the diurnal rhythms of various physiological and behavioral processes in a hierarchical manner. In the past two decades, peripheral circadian oscillators have been identified and their function has been determined in the mammalian reproductive system and its related endocrine glands, including the hypothalamus, pituitary gland, ovaries, testes, uterus, mammary glands, and prostate gland. Increasing evidence indicates that both the SCN and peripheral circadian oscillators play discrete roles in coordinating reproductive processes and optimizing fertility in mammals. The present study reviews recent evidence on circadian clock regulation of reproductive function in the hypothalamic-pituitary-gonadal axis and reproductive system. Additionally, we elucidate the effects of chronodisruption (as a result of, for example, shift work, jet lag, disrupted eating patterns, and sleep disorders) on mammalian reproductive performance from multiple aspects. Finally, we propose potential behavioral changes or pharmaceutical strategies for the prevention and treatment of reproductive disorders from the perspective of chronomedicine. Conclusively, this review will outline recent evidence on circadian clock regulation of reproduction, providing novel perspectives on the role of the circadian clock in maintaining normal reproductive functions and in diseases that negatively affect fertility.
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Affiliation(s)
- Yating Li
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, P.R. China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, P.R. China
| | - Haisen Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, P.R. China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, P.R. China
| | - Yiqun Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, P.R. China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, P.R. China
| | - Dan Li
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, P.R. China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, P.R. China
| | - Huatao Chen
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, P.R. China; Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, P.R. China.
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The Low Endometrial Expression of Long Non-Coding RNA NORAD Is Associated with Recurrent Pregnancy Losses and Unexplained Infertility. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:6448666. [PMID: 36276868 PMCID: PMC9584683 DOI: 10.1155/2022/6448666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/17/2022] [Accepted: 09/21/2022] [Indexed: 11/09/2022]
Abstract
Objective Unexplained infertility (UIF) or recurrent pregnancy loss (RPL) affects 10%-15% of couples in their reproductive years and is multifactorial and not completely elucidated. In this study, we attempt to determine the endometrial expression pattern of non-coding RNA activated by DNA damage (NORAD) in women with UIF and RPL, as well as its clinical significance. Methods The microarray dataset GSE165004 was used to identify differentially expressed RNAs in the endometrial samples between women with RPL and fertile women and between women with UIF and fertile women. A total of 142 women were included in this retrospective analysis, including 32 women with UIF, 48 women with RPL, and 62 fertile women. The relative expression level of NORAD in the endometrial tissues was quantified by qRT-PCR. Results NORAD stood out as an only overlapped lncRNA among differentially expressed RNAs in the endometrial samples between RPL and fertile women and between UIF and fertile women. It was showed that the endometrial tissues of UIF and RPL both were demonstrated with lower relative expression levels of NORAD (UIF: 2.09 ± 0.68; RPL: 1.98 ± 0.65) than the endometrial tissues of normal fertility (4.32 ± 1.04) (P < 0.001). Pearson correlation analysis demonstrated that the serum level of E2 was negatively correlated with the relative expression level of NORAD in the endometrial tissues of UIF (r = -0.630) and RPL (r = -0.696). Results of ROC curves showed that the endometrial expression of NORAD could be used to differentiate RPL and UIF with an AUC of 0.977 (95% CI: 0.956-0.999) and 0.970 (95% CI: 0.941-0.998), sensitivity of 0.873 and 0.955, and specificity of 0.845 and 0.948, respectively. Conclusion The findings obtained from the study showed that the low endometrial expression of NORAD was linked to fertility-related problems, such as UIF and RPL.
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Xue W, Xue F, Jia T, Hao A. Research and experimental verification of the molecular mechanism of berberine in improving premature ovarian failure based on network pharmacology. Bioengineered 2022; 13:9885-9900. [PMID: 35420511 PMCID: PMC9161839 DOI: 10.1080/21655979.2022.2062104] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Based on the research methods of network pharmacology, this study analyzed the improvement effect of berberine (BBR) on premature ovarian failure (POF) and its molecular mechanism. Carry out GO and KEGG enrichment analysis by R language to obtain the potential targets and pathways of BBR in the improvement of POF. Use SD rats and ovarian granulosa cells (GCs) for experimental verification. ELISA was used to measure the content of related hormones in the serum, CCK-8 was used to measure cell viability, western blot was used to measure the content of the target protein in the ovaries and GCs, and q-RT-PCR was used to detect the expression of the target genes in the ovaries and GCs. Predicted by network pharmacology: PTEN, AKT1, FoxO1, FasL, and Bim are the targets with the highest relative correlation between BBR and POF. The results of experiments show that the treatment of low and medium doses of BBR can increase the ovarian index of rats; BBR can increase the levels of Estradiol (E2) and Anti-Mullerian hormone (AMH) in the serum of rats and reduce the levels of Follicle stimulating hormone (FSH) and Luteinizing hormone (LH). BBR can increase the cell viability of GCs; BBR can inhibit the PTEN/AKT1/FoxO1 signaling pathway and its phosphorylation level and reduce the expression of Fas/FasL and Bim mRNA. Overall, BBR can promote the ovarian to maintain normal hormone levels, protect GCs, and enhance the function of POF.
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Affiliation(s)
- Wu Xue
- Graduate School, Jinzhou Medical University, Jinzhou, Liaoning, China.,Key Laboratory of Follicular Development and Reproductive Health of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning Province, China
| | - Fan Xue
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Tao Jia
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Ai Hao
- Graduate School, Jinzhou Medical University, Jinzhou, Liaoning, China.,Key Laboratory of Follicular Development and Reproductive Health of Liaoning Province, Jinzhou Medical University, Jinzhou, Liaoning Province, China.,Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
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Effects of Low Luteinizing Hormone During Ovarian Stimulation on Endometrial Gene Expression and Function - Transcriptome Analysis During the Implantation Window. Reprod Sci 2022; 29:1908-1920. [PMID: 35170000 DOI: 10.1007/s43032-022-00875-5] [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: 10/31/2021] [Accepted: 02/02/2022] [Indexed: 10/19/2022]
Abstract
This study explored the impact of low luteinizing hormone (LH) levels during ovarian stimulation on endometrial function. Based on previous studies by us and others, we divided the patients into low (< 4 IU/L), medium (4-10 IU/L), and high (> 10 IU/L) LH groups. The study utilized a comparison control group design with three groups of 10 patients. Gene set enrichment analysis (GSEA) was applied for functional annotation. By analyzing the exon differentially expressed genes in the endometrium of these three patient groups during the embryo implantation window, we found that when compared to the medium LH group, low LH downregulated endometrial cell metabolism, including mitochondrial-nicotinamide adenine dinucleotide (Normalized Enrichment Scores, NES = - 1.53) and glycolytic metabolism (NES = - 1.22), immune regulation, and autophagy (NES = - 1.58). Transcription factors were the main regulators of cell function. We found that MCM2 was probably involved in regulating the endometrial function induced by low LH. MCM2 target genes were enriched in low LH group, NES = - 1.54. Low LH, but not high LH, altered the endometrial receptivity assay gene expression in comparison to the medium LH. Our results indicated that low LH impacted the endometrial cell function, with a greater effect than high LH. This research provides timely and necessary data on the involvement of LH in important endometrial cellular processes and these data support further clinical development of endometrial receptivity.
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Lin Y, Chen Q, Zhu J, Teng Y, Huang X, Chen X. Progestin-Primed Ovarian Stimulation with Clomiphene Citrate Supplementation May Be More Feasible for Young Women with Diminished Ovarian Reserve Compared with Standard Progestin-Primed Ovarian Stimulation: A Retrospective Study. Drug Des Devel Ther 2021; 15:5087-5097. [PMID: 34992345 PMCID: PMC8710074 DOI: 10.2147/dddt.s338748] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 12/07/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Patients and Methods Results Conclusion
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Affiliation(s)
- Yue Lin
- Reproductive Medicine Center, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Qianqian Chen
- Reproductive Medicine Center, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Jing Zhu
- Reproductive Medicine Center, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Yili Teng
- Reproductive Medicine Center, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Xuefeng Huang
- Reproductive Medicine Center, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Xia Chen
- Reproductive Medicine Center, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- Correspondence: Xia Chen; Xuefeng Huang Reproductive Medicine Center, First Affiliated Hospital of Wenzhou Medical University, 96 Fuxue Road, Wenzhou, Zhejiang, People’s Republic of ChinaTel +86-577-88069380 Email ;
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Li J, Zhu Z, Bi J, Feng Q, Beerntsen BT, Song Q. Neuropeptide Bursicon Influences Reproductive Physiology in Tribolium Castaneum. Front Physiol 2021; 12:717437. [PMID: 34744761 PMCID: PMC8567023 DOI: 10.3389/fphys.2021.717437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/20/2021] [Indexed: 11/13/2022] Open
Abstract
Bursicon is a neuropeptide belonging to the cystine knot family and is composed of burs and partner of burs (pburs) subunits. It can form heterodimers or homodimers to execute different biological functions. Bursicon heterodimers regulate cuticle sclerotization and wing maturation, whereas bursicon homodimers mediate innate immunity and midgut stem cell proliferation. A recent study has shown that bursicon potentially induces the expression of vitellogenin (Vg) in the black tiger shrimp Penaeus monodon; however, the underlying mechanism remains unknown. In this study, we investigated the role of bursicon in the reproductive physiology of the red flour beetle, Tribolium castaneum. The knockdown of burs, pburs, or its receptor T. castaneum rickets (Tcrk) in 2-day pupae significantly downregulated the expression levels of Vg1, Vg2, and Vg receptor (VgR) genes in females 3- and 5-day post-adult emergence, leading to abnormal oocytes with limited Vg content. The silencing of burs repressed the number of eggs laid and completely inhibited egg hatch, whereas the silencing of pburs dramatically decreased the number of eggs laid, hatch rate, and offspring larval size, and this RNA interference (RNAi) effects persisted to the next generation. Furthermore, the knockdown of burs or pburs downregulated the expression of the insulin/insulin-like signaling/target of rapamycin (TOR) signaling genes encoding insulin receptor (InR), protein kinase B (Akt), TOR, and ribosomal protein S6 kinase (S6K). Most importantly, the injection of recombinant pburs (r-pburs) protein was able to upregulate the expression of Vg, VgR, InR, Akt, TOR, S6K, JH synthesis (JHAMT), Methoprene-tolerant (Met), and Taiman (Tai) in normal females and rescue the expression of Vg and VgR in pburs RNAi females but failed to rescue Vg and VgR in Tcrk knockdown females. We infer that bursicon homodimers influence Vg expression via the receptor Tcrk, possibly by mediating the expression of the juvenile hormone (JH) and IIS/TOR pathway genes, thereby regulating reproduction in T. castaneum.
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Affiliation(s)
- Jingjing Li
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States
| | - Zidan Zhu
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States.,Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology and School of Life Sciences, South China Normal University, Guangzhou, China
| | - Jingxiu Bi
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States.,Institution of Quality Standard and Testing Technology for Agro-Product, Shandong Academy of Agricultural Science, Jinan, China
| | - Qili Feng
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology and School of Life Sciences, South China Normal University, Guangzhou, China
| | - Brenda T Beerntsen
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States.,Department of Veterinary Pathobiology, University of Missouri, Columbia, MO, United States
| | - Qisheng Song
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States
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High basal LH levels are associated with improved cycle outcomes of assisted reproduction. JOURNAL OF SURGERY AND MEDICINE 2020. [DOI: 10.28982/josam.666963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhu HY, Liu S, He D, Zhou WH, Li TC, Li Y. Serum luteinizing hormone level on the third day after ovarian stimulation in GnRH agonist short protocol is predictive of outcome in poor responders but not in normal responders. Gynecol Endocrinol 2017; 33:57-61. [PMID: 27898273 DOI: 10.1080/09513590.2016.1199017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVES To identify whether prognostic value of LH measurement in normal responders (NR) is different from poor responders (POR). METHODS A retrospective, single-center study was conducted among patients who underwent ovarian stimulation with short protocol, with 300 NR and 101 POR, according to Bologna Consensus criteria. LH was measured on 3rd and 5th day after stimulation and HCG administration day. RESULTS There was significant difference in the clinical pregnancy rate per cycle initiated among those with LH level on the third day after stimulation (a) below the 25 centile (b) between the 25 and 75 centile and (c) above the 75 centile in women with POR (7.7%, 15.1% vs. 36.4%, p = 0.02) but not in NR. There was significant correlation between LH ranks and clinical pregnancy rate in POR (p = 0.02) but not in NR. Factors associated with clinical pregnancy rate in POR were age and LH on the third of stimulation, while factors in NR were age, AFC and FSH. CONCLUSION LH level on the 3rd day of stimulation was predictive of clinical pregnancy in POR but not in NR.
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Affiliation(s)
- Hai-Yan Zhu
- a Medical Center for Human Reproduction, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China
- b Department of Obstetrics and Gynecology , Fuxing Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Shan Liu
- a Medical Center for Human Reproduction, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Dian He
- c School of Public Health, Capital Medical University , Beijing , China , and
| | - Wen-Hui Zhou
- a Medical Center for Human Reproduction, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China
| | - Tin-Chiu Li
- d Reproductive Medicine and Surgery Unit, Prince of Wales Hospital, Chinese University of Hong Kong , Hong Kong , People's Republic of China
| | - Yuan Li
- a Medical Center for Human Reproduction, Beijing Chao-Yang Hospital, Capital Medical University , Beijing , People's Republic of China
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Anti-Mullerian Hormone: Above and Beyond Conventional Ovarian Reserve Markers. DISEASE MARKERS 2016; 2016:5246217. [PMID: 26977116 PMCID: PMC4764725 DOI: 10.1155/2016/5246217] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 01/06/2016] [Indexed: 01/09/2023]
Abstract
Management of ovarian dysfunctions requires accurate estimation of ovarian reserve (OR). Therefore, reproductive hormones and antral follicle count (AFC) are assessed to indicate OR. Serum anti-Mullerian hormone (AMH) is a unique biomarker that has a critical role in folliculogenesis as well as steroidogenesis within ovaries. Secretion from preantral and early antral follicles renders AMH as the earliest marker to show OR decline. In this review we discuss the dynamics of circulating AMH that remarkably vary with sex and age. As it emerges as a marker of gonadal development and reproductive disorders, here we summarize the role of AMH in female reproductive physiology and provide evidence of higher accuracy in predicting ovarian response to stimulation. Further, we attempt to compile potential clinical applications in children and adults. We propose that AMH evaluation has a potential role in effectively monitoring chemotherapy and pelvic radiation induced ovarian toxicity. Furthermore, AMH guided ovarian stimulation can lead to individualization of therapeutic strategies for infertility treatment. However future research on AMH levels within follicular fluid may pave the way to establish it as a marker of "quality" besides "quantity" of the growing follicles.
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13
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Assidi M, Richard FJ, Sirard MA. FSH in vitro versus LH in vivo: similar genomic effects on the cumulus. J Ovarian Res 2013; 6:68. [PMID: 24066945 PMCID: PMC3852229 DOI: 10.1186/1757-2215-6-68] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 09/17/2013] [Indexed: 01/02/2023] Open
Abstract
The use of gonadotropins to trigger oocyte maturation both in vivo and in vitro has provided precious and powerful knowledge that has significantly increased our understanding of the ovarian function. Moreover, the efficacy of most assisted reproductive technologies (ART) used in both humans and livestock species relies on gonadotropin input, mainly FSH and LH. Despite the significant progress achieved and the huge impact of gonadotropins, the exact molecular pathways of the two pituitary hormones, FSH and LH, still remain poorly understood. Moreover, these pathways may not be the same when moving from the in vivo to the in vitro context. This misunderstanding of the intricate synergy between these two hormones leads to a lack of consensus about their use mainly in vitro or in ovulation induction schedules in vivo. In order to optimize their use, additional work is thus required with a special focus on comparing the in vitro versus the in vivo effects. In this context, this overview will briefly summarize the downstream gene expression pathways induced by both FSH in vitro and LH in vivo in the cumulus compartment. Based on recent microarray comparative analysis, we are reporting that in vitro FSH stimulation on cumulus cells appears to achieve at least part of the gene expression activity after in vivo LH stimulation. We are then proposing that the in vitro FSH-response of cumulus cells have similitudes with the in vivo LH-response.
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Affiliation(s)
- Mourad Assidi
- Département des Sciences Animales, Faculté de l'Agriculture et de l'Alimentation, Université Laval, Québec, QC G1K 7P4, Canada.
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Fábregues F, Iraola A, Casals G, Creus M, Carmona F, Balasch J. Evaluation of two doses of recombinant human luteinizing hormone supplementation in down-regulated women of advanced reproductive age undergoing follicular stimulation for IVF: a randomized clinical study. Eur J Obstet Gynecol Reprod Biol 2011; 158:56-61. [DOI: 10.1016/j.ejogrb.2011.04.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 01/12/2011] [Accepted: 04/04/2011] [Indexed: 10/18/2022]
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15
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Brodin T, Bergh T, Berglund L, Hadziosmanovic N, Holte J. High basal LH levels in combination with low basal FSH levels are associated with high success rates at assisted reproduction. Hum Reprod 2009; 24:2755-9. [DOI: 10.1093/humrep/dep254] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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