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Chaney HL, Current JZ, Zhang M, Nist VA, Nicewarner BM, Yao J. Characterization of agouti-signaling protein (ASIP) in the bovine ovary and throughout early embryogenesis. Cells Dev 2024; 179:203930. [PMID: 38815807 DOI: 10.1016/j.cdev.2024.203930] [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: 10/25/2023] [Revised: 05/14/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
The oocyte expresses certain genes during folliculogenesis to regulate the acquisition of oocyte competence. Oocyte competence, or oocyte quality, is directly related to the ability of the oocyte to result in a successful pregnancy following fertilization. Presently, approximately 40 % of bovine embryos will develop to the blastocyst stage in vitro. Characterization of factors regulating these processes is crucial to improve the efficiency of bovine in vitro embryo production. We demonstrated that the secreted protein, agouti-signaling protein (ASIP) is highly abundant in the bovine oocyte and aimed to characterize its spatiotemporal expression profile in the ovary and throughout early embryonic development. In addition to oocyte expression, ASIP was detected in granulosa, cumulus, and theca cells isolated from antral follicles. Both gene expression data and immunofluorescent staining indicated ASIP declines with oocyte maturation which may indicate a potential role for ASIP in the attainment of oocyte competence. Microinjection of zygotes using small interfering RNA targeting ASIP led to a 16 % reduction in the rate of development to the blastocyst stage. Additionally, we examined potential ASIP signaling mechanisms through which ASIP may function to establish oocyte developmental competence. The expression of melanocortin receptor 3 and 4 and the coreceptor attractin was detected in the oocyte and follicular cells. The addition of cortisol during in vitro maturation was found to increase significantly oocyte ASIP levels. In conclusion, these results suggest a functional role for ASIP in promoting oocyte maturation and subsequent embryonic development, potentially through signaling mechanisms involving cortisol.
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Affiliation(s)
- Heather L Chaney
- Davis College of Agriculture, Natural Resources and Design, Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV, USA
| | - Jaelyn Z Current
- Davis College of Agriculture, Natural Resources and Design, Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV, USA
| | - Mingxiang Zhang
- Davis College of Agriculture, Natural Resources and Design, Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV, USA
| | - Victoria A Nist
- Davis College of Agriculture, Natural Resources and Design, Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV, USA
| | - Brady M Nicewarner
- Davis College of Agriculture, Natural Resources and Design, Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV, USA
| | - Jianbo Yao
- Davis College of Agriculture, Natural Resources and Design, Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV, USA.
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Italiya J, Panchal KJ, Jakhesara SJ, Joshi CG, Koringa PG. In vitro impact of ethanolic extract of Bryonia laciniosa seed on Gir bull spermatozoa: a comprehensive evaluation through transcriptome profiling. Front Vet Sci 2024; 11:1419573. [PMID: 39071790 PMCID: PMC11273328 DOI: 10.3389/fvets.2024.1419573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 07/01/2024] [Indexed: 07/30/2024] Open
Abstract
Aim/objectives This study examines the in vitro impact of an ethanolic extract derived from Bryonia laciniosa seeds on the Gir bull (Bos indicus) spermatozoa. The objective is to thoroughly assess the effects of the seed extract on the physiological parameters of bull spermatozoa, followed by evaluating its effects on X and Y-bearing spermatozoa and its impact on gene expression through transcriptome profiling. Material method For this study, one Gir bull was selected, and 12 ejaculates were collected at one-week time intervals. Sperm cells were isolated from each ejaculate and incubated with varying concentrations of the ethanolic extract. The physiological parameters of the spermatozoa were assessed using Computer Assisted Semen Analysis (CASA) and compared with control groups to evaluate the extract's effects on sperm quality and motility. Results and discussion At a concentration of 18 mg/mL B. laciniosa extract, we noticed a statistically significant 16.4% increase in sperm motility (p = 0.0065). In order to understand the specific effect on X and Y-bearing spermatozoa, motile and non-motile sperm separated by glass wool column method and further evaluated for quantification of X and Y-bearing sperm in all samples by ddPCR. To understand the effect of B. laciniosa extract on spermatozoa at the molecular level, whole transcriptome profiling was carried out using Illumina MiSeq. Transcriptome profiling revealed 81 genes that were expressed differently between the group treated with the extract and the control group. The current investigation revealed an increase in the expression of TLX1, CRYGB, KLF13, and ZAR1 transcripts, which play a role in embryonic development. In addition, several genes have been identified that are involved in sperm motility, such GSK3B, LAPRS, MAPK1, CAMK2B, and AQP7. The findings exhibited the therapeutic effectiveness of B. laciniosa seeds in augmenting fertility through a synergistic blend of activities, including enhanced sperm motility and positive influence on embryogenesis.
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Affiliation(s)
- Jignesh Italiya
- Department of Veterinary Biotechnology, Veterinary College, Kamdhenu University, Anand, India
- Centre for Infectious Animal Diseases, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czechia
| | - Ketankumar J. Panchal
- P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, India
| | - Subhash J. Jakhesara
- Department of Veterinary Biotechnology, Veterinary College, Kamdhenu University, Anand, India
| | - Chaitanya G. Joshi
- Department of Science and Technology, Gujarat Biotechnology Research Centre (GBRC), Government of Gujarat, Gandhinagar, India
| | - Prakash G. Koringa
- Department of Veterinary Biotechnology, Veterinary College, Kamdhenu University, Anand, India
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3
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Amargant F, Vieira C, Pritchard MT, Duncan FE. Systemic low-dose anti-fibrotic treatment attenuates ovarian aging in the mouse. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.21.600035. [PMID: 38979191 PMCID: PMC11230292 DOI: 10.1101/2024.06.21.600035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
The female reproductive system is one of the first to age in humans, resulting in infertility and endocrine disruptions. The aging ovary assumes a fibro-inflammatory milieu which negatively impacts gamete quantity and quality as well as ovulation. Here we tested whether the systemic delivery of anti-inflammatory (Etanercept) or anti-fibrotic (Pirfenidone) drugs attenuates ovarian aging in mice. We first evaluated the ability of these drugs to decrease the expression of fibro-inflammatory genes in primary ovarian stromal cells. Whereas Etanercept did not block Tnf expression in ovarian stromal cells, Pirfenidone significantly reduced Col1a1 expression. We then tested Pirfenidone in vivo where the drug was delivered systemically via mini-osmotic pumps for 6-weeks. Pirfenidone mitigated the age-dependent increase in ovarian fibrosis without impacting overall health parameters. Ovarian function was improved in Pirfenidone-treated mice as evidenced by increased follicle and corpora lutea number, AMH levels, and improved estrous cyclicity. Transcriptomic analysis revealed that Pirfenidone treatment resulted in an upregulation of reproductive function-related genes at 8.5 months and a downregulation of inflammatory genes at 12 months of age. These findings demonstrate that reducing the fibroinflammatory ovarian microenvironment improves ovarian function, thereby supporting modulating the ovarian environment as a therapeutic avenue to extend reproductive longevity.
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Affiliation(s)
- Farners Amargant
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Carol Vieira
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Michele T Pritchard
- Department of Pharmacology, Toxicology and Therapeutics and Institute for Reproductive and Developmental Sciences University of Kansas Medical Center, Kansas City, KS, USA
| | - Francesca E Duncan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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4
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Pamula MC, Lehmann R. How germ granules promote germ cell fate. Nat Rev Genet 2024:10.1038/s41576-024-00744-8. [PMID: 38890558 DOI: 10.1038/s41576-024-00744-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2024] [Indexed: 06/20/2024]
Abstract
Germ cells are the only cells in the body capable of giving rise to a new organism, and this totipotency hinges on their ability to assemble membraneless germ granules. These specialized RNA and protein complexes are hallmarks of germ cells throughout their life cycle: as embryonic germ granules in late oocytes and zygotes, Balbiani bodies in immature oocytes, and nuage in maturing gametes. Decades of developmental, genetic and biochemical studies have identified protein and RNA constituents unique to germ granules and have implicated these in germ cell identity, genome integrity and gamete differentiation. Now, emerging research is defining germ granules as biomolecular condensates that achieve high molecular concentrations by phase separation, and it is assigning distinct roles to germ granules during different stages of germline development. This organization of the germ cell cytoplasm into cellular subcompartments seems to be critical not only for the flawless continuity through the germline life cycle within the developing organism but also for the success of the next generation.
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Affiliation(s)
| | - Ruth Lehmann
- Whitehead Institute for Biomedical Research, Cambridge, MA, USA.
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA.
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5
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Ma T, Zhou S, Xie X, Chen J, Wang J, Zhang G. A case report of a family with developmental arrest of human prokaryotic stage zygote. Front Cell Dev Biol 2024; 12:1280797. [PMID: 38606321 PMCID: PMC11006971 DOI: 10.3389/fcell.2024.1280797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 02/19/2024] [Indexed: 04/13/2024] Open
Abstract
To study the genetic variation leading to the arrest phenotype of pronuclear (PN) zygotes. We recruited a family characterized by recurrent PN arrest during in vitro fertilization (IVF) and intracytoplasmic sperm injection cycles (ICSI) and performed whole-exome sequencing for 2 individuals. The transcriptome profiles of PN-arrest zygotes were assessed by single-cell RNA sequencing analysis. The variants were then validated by PCR amplification and Sanger sequencing in the affected individuals and other family members. A family characterized by recurrent PN arrest during IVF and ICSI cycles were enrolled after giving written informed consent. Peripheral blood samples were taken for DNA extraction. Three PN-arrest zygotes from patient III-3 were used for single-cell RNA-seq as described. This phenotype was reproduced after multiple cycles of egg retrieval and after trying different fertilization methods and multiple ovulation regimens. The mutant genes of whole exon sequencing were screened and verified. The missense variant c. C1630T (p.R544W) in RGS12 was responsible for a phenotype characterized by paternal transmission. RGS12 controls Ca2+ oscillation, which is required for oocyte activation after fertilization. Single-cell transcriptome profiling of PN-arrest zygotes revealed defective established translation, RNA processing and cell cycle, which explained the failure of complete oocyte activation. Furthermore, we identified proximal genes involved in Ca2+ oscillation-cytostatic factor-anaphase-promoting complex (Ca2+ oscillation-CSF-APC) signaling, including upregulated CaMKII, ORAI1, CDC20, and CDH1 and downregulated EMI1 and BUB3. The findings indicate abnormal spontaneous Ca2+ oscillations leading to oocytes with prolonged low CSF level and high APC level, which resulted in defective nuclear envelope breakdown and DNA replication. We have identified an RGS12 variant as the potential cause of female infertility characterized by arrest at the PN stage during multiple IVF and ICSI.
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Affiliation(s)
- Tianzhong Ma
- Reproductive Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Songxia Zhou
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Xuezhen Xie
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Jingyao Chen
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Jing Wang
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Guohong Zhang
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, China
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6
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Yu M, Zhang S, Ma Z, Qiang J, Wei J, Sun L, Kocher TD, Wang D, Tao W. Disruption of Zar1 leads to arrested oogenesis by regulating polyadenylation via Cpeb1 in tilapia (Oreochromis niloticus). Int J Biol Macromol 2024; 260:129632. [PMID: 38253139 DOI: 10.1016/j.ijbiomac.2024.129632] [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: 07/11/2023] [Revised: 11/21/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024]
Abstract
Oogenesis is a complex process regulated by precise coordination of multiple factors, including maternal genes. Zygote arrest 1 (zar1) has been identified as an ovary-specific maternal gene that is vital for oocyte-to-embryo transition and oogenesis in mouse and zebrafish. However, its function in other species remains to be elucidated. In the present study, zar1 was identified with conserved C-terminal zinc finger domains in Nile tilapia. zar1 was highly expressed in the ovary and specifically expressed in phase I and II oocytes. Disruption of zar1 led to the failed transition from oogonia to phase I oocytes, with somatic cell apoptosis. Down-regulation and failed polyadenylation of figla, gdf9, bmp15 and wee2 mRNAs were observed in the ovaries of zar1-/- fish. Cpeb1, a gene essential for polyadenylation that interacts with Zar1, was down-regulated in zar1-/- fish. Moreover, decreased levels of serum estrogen and increased levels of androgen were observed in zar1-/- fish. Taken together, zar1 seems to be essential for tilapia oogenesis by regulating polyadenylation and estrogen synthesis. Our study shows that Zar1 has different molecular functions during gonadal development by the similar signaling pathway in different species.
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Affiliation(s)
- Miao Yu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Shiyi Zhang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Zhisheng Ma
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jun Qiang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Jing Wei
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Lina Sun
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Thomas D Kocher
- Department of Biology, University of Maryland, College Park, MD 20742, United States of America
| | - Deshou Wang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China.
| | - Wenjing Tao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China.
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7
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Emori C, Kodani M, Abbasi F, Mori M, Ikawa M. PABPN1L is required for maternal mRNA degradation after meiosis resumption. J Reprod Dev 2024; 70:10-17. [PMID: 38057116 PMCID: PMC10902638 DOI: 10.1262/jrd.2023-077] [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] [Indexed: 12/08/2023] Open
Abstract
Poly(A)-binding proteins (PABPs) play roles in mRNA maturation, translational activity, and decay. The functions of PABPs, especially PABPN1 and PABPC1, in somatic cells have been well-studied. However, little is known about the roles of PABPs in oocytes because of the unique mechanisms of mRNA metabolism in oocytes. This study focused on PABPN1L and generated Pabpn1l knockout (KO) mice using the CRISPR/Cas9 system. After mating tests, we found that Pabpn1l KO females were infertile due to the failure of the embryos to develop to the 4-cell stage. RNA-seq analysis revealed aberrant mRNA persistence in Pabpn1l KO-MII oocytes, which indicates impaired mRNA degradation during the germinal vesicle (GV) to MII transition. We also revealed that the exogenous expression of Pabpn1l mRNA in KO-GV oocytes recovered defects of embryonic development. PABPN1L is partly indispensable for female fertility in mice, owing to its necessity for embryonic development, which is supported by mRNA degradation during GV to MII maturation.
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Affiliation(s)
- Chihiro Emori
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Mayo Kodani
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
| | - Ferheen Abbasi
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
- Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Masashi Mori
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan
- Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
- The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
- Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka 565-0871, Japan
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8
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Cui H, Zhu H, Ban W, Li Y, Chen R, Li L, Zhang X, Chen K, Xu H. Characterization of Two Gonadal Genes, zar1 and wt1b, in Hermaphroditic Fish Asian Seabass ( Lates calcarifer). Animals (Basel) 2024; 14:508. [PMID: 38338151 PMCID: PMC10854929 DOI: 10.3390/ani14030508] [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: 11/23/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Zygote arrest-1 (Zar1) and Wilms' tumor 1 (Wt1) play an important role in oogenesis, with the latter also involved in testicular development and gender differentiation. Here, Lczar1 and Lcwt1b were identified in Asian seabass (Lates calcarifer), a hermaphrodite fish, as the valuable model for studying sex differentiation. The cloned cDNA fragments of Lczar1 were 1192 bp, encoding 336 amino acids, and contained a zinc-binding domain, while those of Lcwt1b cDNA were 1521 bp, encoding a peptide of 423 amino acids with a Zn finger domain belonging to Wt1b family. RT-qPCR analysis showed that Lczar1 mRNA was exclusively expressed in the ovary, while Lcwt1b mRNA was majorly expressed in the gonads in a higher amount in the testis than in the ovary. In situ hybridization results showed that Lczar1 mRNA was mainly concentrated in oogonia and oocytes at early stages in the ovary, but were undetectable in the testis. Lcwt1b mRNA was localized not only in gonadal somatic cells (the testis and ovary), but also in female and male germ cells in the early developmental stages, such as those of previtellogenic oocytes, spermatogonia, spermatocytes and spermatids. These results indicated that Lczar1 and Lcwt1b possibly play roles in gonadal development. Therefore, the findings of this study will provide a basis for clarifying the mechanism of Lczar1 and Lcwt1b in regulating germ cell development and the sex reversal of Asian seabass and even other hermaphroditic species.
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Affiliation(s)
- Han Cui
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
| | - Haoyu Zhu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
| | - Wenzhuo Ban
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
| | - Yulin Li
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
| | - Ruyi Chen
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
| | - Lingli Li
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
| | - Xiaoling Zhang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
| | - Kaili Chen
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
| | - Hongyan Xu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, College of Fisheries, Southwest University, Chongqing 402460, China; (H.C.); (H.Z.); (W.B.); (Y.L.); (R.C.); (L.L.); (X.Z.)
- Key Laboratory of Freshwater Fish Reproduction and Development, Chongqing 400715, China
- Key Laboratory of Aquatic Sciences of Chongqing, Ministry of Education, Chongqing 400715, China
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Rosa PMDS, Guedes PHE, Garcia JM, Oliveira CS. Cytoplasmic granules in bovine oocytes do not affect embryonic or fetal development. ZYGOTE 2024; 32:28-37. [PMID: 38047350 DOI: 10.1017/s0967199423000576] [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] [Indexed: 12/05/2023]
Abstract
Oocyte cytoplasmic evaluation is based on homogeneity and granular appearance. Our study investigated if a granular cytoplasm, highly heterogeneous, would affect oocyte competence in bovine. In two experiments, bovine cumulus-oocyte complexes (COCs) with homogeneous cytoplasm (control, CC) and granulated cytoplasm (granular, GC) were selected from a regular pool of COCs. Experiment 1 was performed with slaughterhouse ovaries, and Experiment 2 was carried out in Girolando COCs obtained from ovum pick-up. Granular oocytes had higher caspase 3 levels (66.17 ± 11.61 vs 172.08 ± 16.95, P < 0.01) and similar GAP junction activity (5.64 ± 0.45 vs 6.29 ± 0.29). ZAR1 relative mRNA amount was lower in granular oocytes (178.27 ± 151.63 vs 0.89 ± 0.89, P = 0.01) and no effect was detected for MATER, PPP2R1A, ENY2, IGF2R, and BMP15 genes. Despite molecular differences, no detrimental effect was detected on oocyte competence in GC oocytes. Cleavage (Experiment 1: 59.52 ± 7.21% vs 59.79 ± 6.10% and Experiment 2: 68.88 ± 4.82 vs 74.41 ± 5.89%) and blastocyst (Experiment 1: 29.28 ± 4.14% vs 23.15 ± 2.96% and Experiment 2: 21.11 ± 3.28% vs 21.02 ± 6.08%) rates were similar between CC and GC (Experiments 1 and 2, respectively). Post-transfer embryo development revealed that pregnancy (CC: 24.27 ± 9.70% vs GC: 26.31 ± 7.23%) and calving (23.68% vs 33.33%) rates and fetal growth were not affected by the presence of cytoplasmic granules. Our results demonstrated that oocytes with granular cytoplasm present equivalent efficiency for IVF and calf production compared with homogenous cytoplasm oocytes. This could be observed through similar cleavage, blastocyst rates, and fetal growth development. In addition to differences in oocyte gene expression related to oocyte quality, it seems not to affect oocyte developmental competence.
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Affiliation(s)
- Paola Maria da Silva Rosa
- Embrapa Dairy Cattle, 610 Eugenio do Nascimento Ave, Juiz de Fora, MG, Brazil36038-330
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University, Jaboticabal, SP14884-900, Brazil
| | | | - Joaquim Mansano Garcia
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University, Jaboticabal, SP14884-900, Brazil
| | - Clara Slade Oliveira
- Embrapa Dairy Cattle, 610 Eugenio do Nascimento Ave, Juiz de Fora, MG, Brazil36038-330
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University, Jaboticabal, SP14884-900, Brazil
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10
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Song Y, Zhang N, Zhang Y, Wang J, Lv Q, Zhang J. Single-Cell Transcriptome Analysis Reveals Development-Specific Networks at Distinct Synchronized Antral Follicle Sizes in Sheep Oocytes. Int J Mol Sci 2024; 25:910. [PMID: 38255985 PMCID: PMC10815039 DOI: 10.3390/ijms25020910] [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: 12/13/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
The development of the ovarian antral follicle is a complex, highly regulated process. Oocytes orchestrate and coordinate the development of mammalian ovarian follicles, and the rate of follicular development is governed by a developmental program intrinsic to the oocyte. Characterizing oocyte signatures during this dynamic process is critical for understanding oocyte maturation and follicular development. Although the transcriptional signature of sheep oocytes matured in vitro and preovulatory oocytes have been previously described, the transcriptional changes of oocytes in antral follicles have not. Here, we used single-cell transcriptomics (SmartSeq2) to characterize sheep oocytes from small, medium, and large antral follicles. We characterized the transcriptomic landscape of sheep oocytes during antral follicle development, identifying unique features in the transcriptional atlas, stage-specific molecular signatures, oocyte-secreted factors, and transcription factor networks. Notably, we identified the specific expression of 222 genes in the LO, 8 and 6 genes that were stage-specific in the MO and SO, respectively. We also elucidated signaling pathways in each antral follicle size that may reflect oocyte quality and in vitro maturation competency. Additionally, we discovered key biological processes that drive the transition from small to large antral follicles, revealing hub genes involved in follicle recruitment and selection. Thus, our work provides a comprehensive characterization of the single-oocyte transcriptome, filling a gap in the mapping of the molecular landscape of sheep oogenesis. We also provide key insights into the transcriptional regulation of the critical sizes of antral follicular development, which is essential for understanding how the oocyte orchestrates follicular development.
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Affiliation(s)
| | | | | | | | | | - Jiaxin Zhang
- Inner Mongolia Key Laboratory of Sheep & Goat Genetics Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (Y.S.)
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11
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Wei Y, Wang J, Qu R, Zhang W, Tan Y, Sha Y, Li L, Yin T. Genetic mechanisms of fertilization failure and early embryonic arrest: a comprehensive review. Hum Reprod Update 2024; 30:48-80. [PMID: 37758324 DOI: 10.1093/humupd/dmad026] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/07/2023] [Indexed: 10/03/2023] Open
Abstract
BACKGROUND Infertility and pregnancy loss are longstanding problems. Successful fertilization and high-quality embryos are prerequisites for an ongoing pregnancy. Studies have proven that every stage in the human reproductive process is regulated by multiple genes and any problem, at any step, may lead to fertilization failure (FF) or early embryonic arrest (EEA). Doctors can diagnose the pathogenic factors involved in FF and EEA by using genetic methods. With the progress in the development of new genetic technologies, such as single-cell RNA analysis and whole-exome sequencing, a new approach has opened up for us to directly study human germ cells and reproductive development. These findings will help us to identify the unique mechanism(s) that leads to FF and EEA in order to find potential treatments. OBJECTIVE AND RATIONALE The goal of this review is to compile current genetic knowledge related to FF and EEA, clarifying the mechanisms involved and providing clues for clinical diagnosis and treatment. SEARCH METHODS PubMed was used to search for relevant research articles and reviews, primarily focusing on English-language publications from January 1978 to June 2023. The search terms included fertilization failure, early embryonic arrest, genetic, epigenetic, whole-exome sequencing, DNA methylation, chromosome, non-coding RNA, and other related keywords. Additional studies were identified by searching reference lists. This review primarily focuses on research conducted in humans. However, it also incorporates relevant data from animal models when applicable. The results were presented descriptively, and individual study quality was not assessed. OUTCOMES A total of 233 relevant articles were included in the final review, from 3925 records identified initially. The review provides an overview of genetic factors and mechanisms involved in the human reproductive process. The genetic mutations and other genetic mechanisms of FF and EEA were systematically reviewed, for example, globozoospermia, oocyte activation failure, maternal effect gene mutations, zygotic genome activation abnormalities, chromosome abnormalities, and epigenetic abnormalities. Additionally, the review summarizes progress in treatments for different gene defects, offering new insights for clinical diagnosis and treatment. WIDER IMPLICATIONS The information provided in this review will facilitate the development of more accurate molecular screening tools for diagnosing infertility using genetic markers and networks in human reproductive development. The findings will also help guide clinical practice by identifying appropriate interventions based on specific gene mutations. For example, when an individual has obvious gene mutations related to FF, ICSI is recommended instead of IVF. However, in the case of genetic defects such as phospholipase C zeta1 (PLCZ1), actin-like7A (ACTL7A), actin-like 9 (ACTL9), and IQ motif-containing N (IQCN), ICSI may also fail to fertilize. We can consider artificial oocyte activation technology with ICSI to improve fertilization rate and reduce monetary and time costs. In the future, fertility is expected to be improved or restored by interfering with or supplementing the relevant genes.
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Affiliation(s)
- Yiqiu Wei
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jingxuan Wang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Rui Qu
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Weiqian Zhang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yiling Tan
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yanwei Sha
- Department of Andrology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, China
| | - Lin Li
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Tailang Yin
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
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12
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Lea G, Hanna CW. Loss of DNA methylation disrupts syncytiotrophoblast development: Proposed consequences of aberrant germline gene activation. Bioessays 2024; 46:e2300140. [PMID: 37994176 DOI: 10.1002/bies.202300140] [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: 07/28/2023] [Revised: 09/26/2023] [Accepted: 10/24/2023] [Indexed: 11/24/2023]
Abstract
DNA methylation is a repressive epigenetic modification that is essential for development and its disruption is widely implicated in disease. Yet, remarkably, ablation of DNA methylation in transgenic mouse models has limited impact on transcriptional states. Across multiple tissues and developmental contexts, the predominant transcriptional signature upon loss of DNA methylation is the de-repression of a subset of germline genes, normally expressed in gametogenesis. We recently reported loss of de novo DNA methyltransferase DNMT3B resulted in up-regulation of germline genes and impaired syncytiotrophoblast formation in the murine placenta. This defect led to embryonic lethality. We hypothesize that de-repression of germline genes in the Dnmt3b knockout underpins aspects of the placental phenotype by interfering with normal developmental processes. Specifically, we discuss molecular mechanisms by which aberrant expression of the piRNA pathway, meiotic proteins or germline transcriptional regulators may disrupt syncytiotrophoblast development.
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Affiliation(s)
- Georgia Lea
- Department of Physiology Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Courtney W Hanna
- Department of Physiology Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
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13
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Israel S, Seyfarth J, Nolte T, Drexler HCA, Fuellen G, Boiani M. Intracellular fraction of zona pellucida protein 3 is required for the oocyte-to-embryo transition in mice. Mol Hum Reprod 2023; 29:gaad038. [PMID: 37930049 PMCID: PMC10640839 DOI: 10.1093/molehr/gaad038] [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: 05/15/2023] [Revised: 10/20/2023] [Indexed: 11/07/2023] Open
Abstract
In oocyte biology, the zona pellucida has long been known to operate three extracellular functions downstream of the secretory pathway, namely, encasing the oocytes in ovarian follicles, mediating sperm-oocyte interaction, and preventing premature embryo contact with oviductal epithelium. The present study uncovers a fourth function that is fundamentally distinct from the other three, being critical for embryonic cell survival in mice. Intriguingly, the three proteins of the mouse zona pellucida (ZP1, ZP2, ZP3) were found abundantly present also inside the embryo 4 days after fertilization, as shown by mass spectrometry, immunoblotting, and immunofluorescence. Contrary to current understanding of the roles of ZP proteins, ZP3 was associated more with the cytoskeleton than with secretory vesicles in the subcortical region of metaphase II oocytes and zygotes, and was excluded from regions of cell-cell contact in cleavage-stage embryos. Trim-away-mediated knockdown of ZP3 in fertilized oocytes hampered the first zygotic cleavage, while ZP3 overexpression supported blastocyst formation. Transcriptome analysis of ZP3-knockdown embryos pointed at defects of cytoplasmic translation in the context of embryonic genome activation. This conclusion was supported by reduced protein synthesis in the ZP3-knockdown and by the lack of cleavage arrest when Trim-away was postponed from the one-cell to the late two-cell stage. These data place constraints on the notion that zona proteins only operate in the extracellular space, revealing also a role during the oocyte-to-embryo transition. Ultimately, these data recruit ZP3 into the family of maternal factors that contribute to developmental competence of mouse oocytes.
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Affiliation(s)
- Steffen Israel
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
| | - Julia Seyfarth
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
| | - Thomas Nolte
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
| | - Hannes C A Drexler
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
| | - Georg Fuellen
- Rostock University Medical Center, Institute for Biostatistics and Informatics in Medicine and Aging Research (IBIMA), Rostock, Germany
| | - Michele Boiani
- Max Planck Institute for Molecular Biomedicine, Department of Cell & Tissue Dynamics, Muenster, Germany
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14
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Briley SM, Ahmed AA, Steenwinkel TE, Jiang P, Hartig SM, Schindler K, Pangas SA. Global SUMOylation in mouse oocytes maintains oocyte identity and regulates chromatin remodeling and transcriptional silencing at the end of folliculogenesis. Development 2023; 150:dev201535. [PMID: 37676777 PMCID: PMC10499029 DOI: 10.1242/dev.201535] [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: 12/14/2022] [Accepted: 07/31/2023] [Indexed: 09/09/2023]
Abstract
Meiotically competent oocytes in mammals undergo cyclic development during folliculogenesis. Oocytes within ovarian follicles are transcriptionally active, producing and storing transcripts required for oocyte growth, somatic cell communication and early embryogenesis. Transcription ceases as oocytes transition from growth to maturation and does not resume until zygotic genome activation. Although SUMOylation, a post-translational modification, plays multifaceted roles in transcriptional regulation, its involvement during oocyte development remains poorly understood. In this study, we generated an oocyte-specific knockout of Ube2i, encoding the SUMO E2 enzyme UBE2I, using Zp3-cre+ to determine how loss of oocyte SUMOylation during folliculogenesis affects oocyte development. Ube2i Zp3-cre+ female knockout mice were sterile, with oocyte defects in meiotic competence, spindle architecture and chromosome alignment, and a premature arrest in metaphase I. Additionally, fully grown Ube2i Zp3-cre+ oocytes exhibited sustained transcriptional activity but downregulated maternal effect genes and prematurely activated genes and retrotransposons typically associated with zygotic genome activation. These findings demonstrate that UBE2I is required for the acquisition of key hallmarks of oocyte development during folliculogenesis, and highlight UBE2I as a previously unreported orchestrator of transcriptional regulation in mouse oocytes.
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Affiliation(s)
- Shawn M. Briley
- Graduate Program in Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Avery A. Ahmed
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
- Graduate Program in Development, Disease Models & Therapeutics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Tessa E. Steenwinkel
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
- Graduate Program in Development, Disease Models & Therapeutics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Peixin Jiang
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sean M. Hartig
- Division of Diabetes, Endocrinology, & Metabolism, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Karen Schindler
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Stephanie A. Pangas
- Graduate Program in Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
- Graduate Program in Development, Disease Models & Therapeutics, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
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15
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Li H, Zhao H, Yang C, Su R, Long M, Liu J, Shi L, Xue Y, Su Y. LSM14B is an Oocyte-Specific RNA-Binding Protein Indispensable for Maternal mRNA Metabolism and Oocyte Development in Mice. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300043. [PMID: 37083226 PMCID: PMC10288277 DOI: 10.1002/advs.202300043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/28/2023] [Indexed: 05/03/2023]
Abstract
Mammalian oogenesis features reliance on the mRNAs produced and stored during early growth phase. These are essential for producing an oocyte competent to undergo meiotic maturation and embryogenesis later when oocytes are transcriptionally silent. The fate of maternal mRNAs hence ensures the success of oogenesis and the quality of the resulting eggs. Nevertheless, how the fate of maternal mRNAs is determined remains largely elusive. RNA-binding proteins (RBPs) are crucial regulators of oogenesis, yet the identity of the full complement of RBPs expressed in oocytes is unknown. Here, a global view of oocyte-expressed RBPs is presented: mRNA-interactome capture identifies 1396 RBPs in mouse oocytes. An analysis of one of these RBPs, LSM family member 14 (LSM14B), demonstrates that this RBP is specific to oocytes and associated with many networks essential for oogenesis. Deletion of Lsm14b results in female-specific infertility and a phenotype characterized by oocytes incompetent to complete meiosis and early embryogenesis. LSM14B serves as an interaction hub for proteins and mRNAs throughout oocyte development and regulates translation of a subset of its bound mRNAs. Therefore, RNP complexes tethered by LSM14B are found exclusively in oocytes and are essential for the control of maternal mRNA fate and oocyte development.
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Affiliation(s)
- Hui Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental BiologySchool of Life SciencesShandong UniversityQingdao266237P. R. China
- State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjing211126P. R. China
| | - Hailian Zhao
- Institute of BiophysicsChinese Academy of SciencesBeijing100101P. R. China
| | - Chunhui Yang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental BiologySchool of Life SciencesShandong UniversityQingdao266237P. R. China
| | - Ruibao Su
- Institute of BiophysicsChinese Academy of SciencesBeijing100101P. R. China
| | - Min Long
- Shandong Provincial Key Laboratory of Animal Cells and Developmental BiologySchool of Life SciencesShandong UniversityQingdao266237P. R. China
- State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjing211126P. R. China
| | - Jinliang Liu
- Shandong Provincial Key Laboratory of Animal Cells and Developmental BiologySchool of Life SciencesShandong UniversityQingdao266237P. R. China
| | - Lanying Shi
- Shandong Provincial Key Laboratory of Animal Cells and Developmental BiologySchool of Life SciencesShandong UniversityQingdao266237P. R. China
- State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjing211126P. R. China
| | - Yuanchao Xue
- Institute of BiophysicsChinese Academy of SciencesBeijing100101P. R. China
| | - You‐Qiang Su
- Shandong Provincial Key Laboratory of Animal Cells and Developmental BiologySchool of Life SciencesShandong UniversityQingdao266237P. R. China
- State Key Laboratory of Reproductive MedicineNanjing Medical UniversityNanjing211126P. R. China
- Collaborative Innovation Center of Genetics and DevelopmentFudan UniversityShanghai200433P. R. China
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16
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Guo J, Zhao H, Zhang J, Lv X, Zhang S, Su R, Zheng W, Dai J, Meng F, Gong F, Lu G, Xue Y, Lin G. Selective Translation of Maternal mRNA by eIF4E1B Controls Oocyte to Embryo Transition. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205500. [PMID: 36755190 PMCID: PMC10104655 DOI: 10.1002/advs.202205500] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Maternal messenger ribonucleic acids (mRNAs) are driven by a highly orchestrated scheme of recruitment to polysomes and translational activation. However, selecting and regulating individual mRNAs for the translation from a competitive pool of mRNAs are little-known processes. This research shows that the maternal eukaryotic translation initiation factor 4e1b (Eif4e1b) expresses during the oocyte-to-embryo transition (OET), and maternal deletion of Eif4e1b leads to multiple defects concerning oogenesis and embryonic developmental competence during OET. The linear amplification of complementary deoxyribonucleic acid (cDNA) ends, and sequencing (LACE-seq) is used to identify the distinct subset of mRNA and its CG-rich binding sites within the 5' untranslated region (UTR) targeted by eIF4E1B. The proteomics analyses indicate that eIF4E1B-specific bound genes show stronger downregulation at the protein level, which further verify a group of proteins that plays a crucial role in oocyte maturation and embryonic developmental competence is insufficiently synthesized in Eif4e1b-cKO oocytes during OET. Moreover, the biochemical results in vitro are combined to further confirm the maternal-specific translation activation model assembled by eIF4E1B and 3'UTR-associated mRNA binding proteins. The findings demonstrate the indispensability of eIF4E1B for selective translation activation in mammalian oocytes and provide a potential network regulated by eIF4E1B in OET.
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Affiliation(s)
- Jing Guo
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
| | - Hailian Zhao
- Key Laboratory of RNA BiologyInstitute of BiophysicsChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jue Zhang
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
| | - Xiangjiang Lv
- Laboratory of Reproductive and Stem Cell EngineeringNHC Key Laboratory of Human Stem Cell and Reproductive EngineeringCentral South UniversityChangsha410078P. R. China
| | - Shen Zhang
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
| | - Ruibao Su
- Key Laboratory of RNA BiologyInstitute of BiophysicsChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Wei Zheng
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
| | - Jing Dai
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
- Laboratory of Reproductive and Stem Cell EngineeringNHC Key Laboratory of Human Stem Cell and Reproductive EngineeringCentral South UniversityChangsha410078P. R. China
| | - Fei Meng
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
| | - Fei Gong
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
- Laboratory of Reproductive and Stem Cell EngineeringNHC Key Laboratory of Human Stem Cell and Reproductive EngineeringCentral South UniversityChangsha410078P. R. China
| | - Guangxiu Lu
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
- Laboratory of Reproductive and Stem Cell EngineeringNHC Key Laboratory of Human Stem Cell and Reproductive EngineeringCentral South UniversityChangsha410078P. R. China
| | - Yuanchao Xue
- Key Laboratory of RNA BiologyInstitute of BiophysicsChinese Academy of SciencesBeijing100101P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Ge Lin
- Clinical Research Center for Reproduction and Genetics in Hunan ProvinceReproductive and Genetic Hospital of CITIC‐XiangyaChangsha410078P. R. China
- Laboratory of Reproductive and Stem Cell EngineeringNHC Key Laboratory of Human Stem Cell and Reproductive EngineeringCentral South UniversityChangsha410078P. R. China
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17
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Dec E, Clement J, Cheng K, Church GM, Fossel MB, Rehkopf DH, Rosero-Bixby L, Kobor MS, Lin DT, Lu AT, Fei Z, Guo W, Chew YC, Yang X, Putra SED, Reiner AP, Correa A, Vilalta A, Pirazzini C, Passarino G, Monti D, Arosio B, Garagnani P, Franceschi C, Horvath S. Centenarian clocks: epigenetic clocks for validating claims of exceptional longevity. GeroScience 2023:10.1007/s11357-023-00731-7. [PMID: 36964402 PMCID: PMC10400760 DOI: 10.1007/s11357-023-00731-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/09/2023] [Indexed: 03/26/2023] Open
Abstract
Claims surrounding exceptional longevity are sometimes disputed or dismissed for lack of credible evidence. Here, we present three DNA methylation-based age estimators (epigenetic clocks) for verifying age claims of centenarians. The three centenarian clocks were developed based on n = 7039 blood and saliva samples from individuals older than 40, including n = 184 samples from centenarians, 122 samples from semi-supercentenarians (aged 105 +), and 25 samples from supercentenarians (aged 110 +). The oldest individual was 115 years old. Our most accurate centenarian clock resulted from applying a neural network model to a training set composed of individuals older than 40. An epigenome-wide association study of age in different age groups revealed that age effects in young individuals (age < 40) are correlated (r = 0.55) with age effects in old individuals (age > 90). We present a chromatin state analysis of age effects in centenarians. The centenarian clocks are expected to be useful for validating claims surrounding exceptional old age.
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Affiliation(s)
- Eric Dec
- Department of Pediatrics, Division of Genetics and Genomic Medicine, University of California, Irvine, USA.
| | - James Clement
- Betterhumans Inc., Gainesville, FL, USA
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Kaiyang Cheng
- Medical Informatics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - George M Church
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, USA
| | | | - David H Rehkopf
- Epidemiology & Population Health and Medicine, School of Medicine, Stanford University, Stanford, CA, USA
| | - Luis Rosero-Bixby
- Centro Centroamericano de Población, Universidad de Costa Rica, San Pedro, Costa Rica
| | - Michael S Kobor
- Edwin S.H. Leong Healthy Aging Program, Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - David Ts Lin
- Edwin S.H. Leong Healthy Aging Program, Centre for Molecular Medicine and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Ake T Lu
- Dept. of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
- Altos Labs, San Diego, CA, USA
| | - Zhe Fei
- Dept. of Biostatistics, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | - Wei Guo
- Zymo Research Corp, Irvine, CA, USA
| | | | | | - Sulistyo E Dwi Putra
- Department of Biology, Faculty of Biotechnology, University of Surabaya, Surabaya, 60293, Indonesia
| | - Alex P Reiner
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Adolfo Correa
- Medicine and Population Health Science, University of Mississippi Medical Center, Jackson, USA
| | | | - Chiara Pirazzini
- IRCCS Istituto Delle Scienze Neurologiche Di Bologna, Bologna, Italy
| | - Giuseppe Passarino
- Department of Biology Ecology and Earth Science, University of Calabria, Rende, Italy
| | - Daniela Monti
- Department of Experimental and Clinical, Biomedical Sciences "Mario Serio" University of Florence, Florence, Italy
| | - Beatrice Arosio
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Paolo Garagnani
- Department of Medical and Surgical Sciences, University of Bologna, 40126, Bologna, Italy
- Alma Mater Research Institute On Global Challenges and Climate Change (Alma Climate), University of Bologna, Bologna, Italy
- Department of Laboratory Medicine, Clinical Chemistry, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
- CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Bologna, Italy
| | - Claudio Franceschi
- Department of Medical and Surgical Sciences, University of Bologna, 40126, Bologna, Italy
- Institute of Information Technologies, Mathematics and Mechanics, Lobachevsky State University, Nizhny Novgorod, Russia
| | - Steve Horvath
- Dept. of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
- Altos Labs, San Diego, CA, USA.
- Dept. of Biostatistics, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA.
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18
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Zhang S, Mu L, Wang H, Xu X, Jia L, Niu S, Wang Y, Wang P, Li L, Chai J, Li Z, Zhang Y, Zhang H. Quantitative proteomic analysis uncovers protein-expression profiles during gonadotropin-dependent folliculogenesis in mice†. Biol Reprod 2023; 108:479-491. [PMID: 36477298 DOI: 10.1093/biolre/ioac217] [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: 03/08/2022] [Revised: 07/14/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
Ovarian follicle is the basic functional unit of female reproduction, and is composed of oocyte and surrounding granulosa cells. In mammals, folliculogenesis strictly rely on gonadotropin regulations to determine the ovulation and the quality of eggs. However, the dynamic changes of protein-expressing profiles in follicles at different developmental stages remain largely unknown. By performing mass-spectrometry-based quantitative proteomic analysis of mouse follicles, we provide a proteomic database (~3000 proteins) that covers three key stages of gonadotropin-dependent folliculogenesis. By combining bioinformatics analysis with in situ expression validation, we showed that our proteomic data well reflected physiological changes during folliculogenesis, which provided potential to predict unknown regulators of folliculogenesis. Additionally, by using the oocyte structural protein zona pellucida protein 2 as the internal control, we showed the possibility of our database to predict the expression dynamics of oocyte-expressing proteins during folliculogenesis. Taken together, we provide a high-coverage proteomic database to study protein-expression dynamics during gonadotropin-dependent folliculogenesis in mammals.
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Affiliation(s)
- Shuo Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Lu Mu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Haoran Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xueqiang Xu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Longzhong Jia
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Shudong Niu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yibo Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Peike Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Lingyu Li
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Junyi Chai
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Zhen Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yan Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Hua Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
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19
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Ke H, Tang S, Guo T, Hou D, Jiao X, Li S, Luo W, Xu B, Zhao S, Li G, Zhang X, Xu S, Wang L, Wu Y, Wang J, Zhang F, Qin Y, Jin L, Chen ZJ. Landscape of pathogenic mutations in premature ovarian insufficiency. Nat Med 2023; 29:483-492. [PMID: 36732629 PMCID: PMC9941050 DOI: 10.1038/s41591-022-02194-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/20/2022] [Indexed: 02/04/2023]
Abstract
Premature ovarian insufficiency (POI) is a major cause of female infertility due to early loss of ovarian function. POI is a heterogeneous condition, and its molecular etiology is unclear. To identify genetic variants associated with POI, here we performed whole-exome sequencing in a cohort of 1,030 patients with POI. We detected 195 pathogenic/likely pathogenic variants in 59 known POI-causative genes, accounting for 193 (18.7%) cases. Association analyses comparing the POI cohort with a control cohort of 5,000 individuals without POI identified 20 further POI-associated genes with a significantly higher burden of loss-of-function variants. Functional annotations of these novel 20 genes indicated their involvement in ovarian development and function, including gonadogenesis (LGR4 and PRDM1), meiosis (CPEB1, KASH5, MCMDC2, MEIOSIN, NUP43, RFWD3, SHOC1, SLX4 and STRA8) and folliculogenesis and ovulation (ALOX12, BMP6, H1-8, HMMR, HSD17B1, MST1R, PPM1B, ZAR1 and ZP3). Cumulatively, pathogenic and likely pathogenic variants in known POI-causative and novel POI-associated genes contributed to 242 (23.5%) cases. Further genotype-phenotype correlation analyses indicated that genetic contribution was higher in cases with primary amenorrhea compared to that in cases with secondary amenorrhea. This study expands understanding of the genetic landscape underlying POI and presents insights that have the potential to improve the utility of diagnostic genetic screenings.
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Affiliation(s)
- Hanni Ke
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Shuyan Tang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Ting Guo
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Dong Hou
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Xue Jiao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Shan Li
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Wei Luo
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Bingying Xu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Shidou Zhao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Guangyu Li
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China
| | - Xiaoxi Zhang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Shuhua Xu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China.,State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, China
| | - Lingbo Wang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Yanhua Wu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, China
| | - Jiucun Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, China.,Research Unit of Dissecting the Population Genetics and Developing New Technologies for Treatment and Prevention of Skin Phenotypes and Dermatological Diseases (2019RU058), Chinese Academy of Medical Sciences, Shanghai, China
| | - Feng Zhang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China. .,State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, China. .,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China.
| | - Yingying Qin
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China. .,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China.
| | - Li Jin
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, China. .,Research Unit of Dissecting the Population Genetics and Developing New Technologies for Treatment and Prevention of Skin Phenotypes and Dermatological Diseases (2019RU058), Chinese Academy of Medical Sciences, Shanghai, China.
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China. .,Key Laboratory of Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, China. .,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China. .,Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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20
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Remodeling of maternal mRNA through poly(A) tail orchestrates human oocyte-to-embryo transition. Nat Struct Mol Biol 2023; 30:200-215. [PMID: 36646905 PMCID: PMC9935398 DOI: 10.1038/s41594-022-00908-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 12/06/2022] [Indexed: 01/18/2023]
Abstract
Poly(A)-tail-mediated post-transcriptional regulation of maternal mRNAs is vital in the oocyte-to-embryo transition (OET). Nothing is known about poly(A) tail dynamics during the human OET. Here, we show that poly(A) tail length and internal non-A residues are highly dynamic during the human OET, using poly(A)-inclusive RNA isoform sequencing (PAIso-seq). Unexpectedly, maternal mRNAs undergo global remodeling: after deadenylation or partial degradation into 3'-UTRs, they are re-polyadenylated to produce polyadenylated degradation intermediates, coinciding with massive incorporation of non-A residues, particularly internal long consecutive U residues, into the newly synthesized poly(A) tails. Moreover, TUT4 and TUT7 contribute to the incorporation of these U residues, BTG4-mediated deadenylation produces substrates for maternal mRNA re-polyadenylation, and TENT4A and TENT4B incorporate internal G residues. The maternal mRNA remodeling is further confirmed using PAIso-seq2. Importantly, maternal mRNA remodeling is essential for the first cleavage of human embryos. Together, these findings broaden our understanding of the post-transcriptional regulation of maternal mRNAs during the human OET.
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21
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Wang W, Miyamoto Y, Chen B, Shi J, Diao F, Zheng W, Li Q, Yu L, Li L, Xu Y, Wu L, Mao X, Fu J, Li B, Yan Z, Shi R, Xue X, Mu J, Zhang Z, Wu T, Zhao L, Wang W, Zhou Z, Dong J, Li Q, Jin L, He L, Sun X, Lin G, Kuang Y, Wang L, Sang Q. Karyopherin α deficiency contributes to human preimplantation embryo arrest. J Clin Invest 2023; 133:159951. [PMID: 36647821 PMCID: PMC9843055 DOI: 10.1172/jci159951] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 11/02/2022] [Indexed: 01/18/2023] Open
Abstract
Preimplantation embryo arrest (PREMBA) is a common cause of female infertility and recurrent failure of assisted reproductive technology. However, the genetic basis of PREMBA is largely unrevealed. Here, using whole-exome sequencing data from 606 women experiencing PREMBA compared with 2,813 controls, we performed a population and gene-based burden test and identified a candidate gene, karyopherin subunit α7 (KPNA7). In vitro studies showed that identified sequence variants reduced KPNA7 protein levels, impaired KPNA7 capacity for binding to its substrate ribosomal L1 domain-containing protein 1 (RSL1D1), and affected KPNA7 nuclear transport activity. Comparison between humans and mice suggested that mouse KPNA2, rather than mouse KPNA7, acts as an essential karyopherin in embryonic development. Kpna2-/- female mice showed embryo arrest due to zygotic genome activation defects, recapitulating the phenotype of human PREMBA. In addition, female mice with an oocyte-specific knockout of Rsl1d1 recapitulated the phenotype of Kpna2-/- mice, demonstrating the vital role of substrate RSL1D1. Finally, complementary RNA (cRNA) microinjection of human KPNA7, but not mouse Kpna7, was able to rescue the embryo arrest phenotype in Kpna2-/- mice, suggesting mouse KPNA2 might be a homologue of human KPNA7. Our findings uncovered a mechanistic understanding for the pathogenesis of PREMBA, which acts by impairing nuclear protein transport, and provide a diagnostic marker for PREMBA patients.
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Affiliation(s)
- Wenjing Wang
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Yoichi Miyamoto
- Laboratory of Nuclear Transport Dynamics, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Biaobang Chen
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Juanzi Shi
- Reproductive Medicine Center, Northwest Women’s and Children’s Hospital, Xi’an, China
| | - Feiyang Diao
- Reproductive Medicine Center, Jiangsu Province Hospital, Jiangsu, China
| | - Wei Zheng
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Qun Li
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Lan Yu
- Reproductive Medicine Center, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Lin Li
- Key Laboratory of Human Reproduction and Genetics, Department of Reproductive Medicine, Nanchang Reproductive Hospital, Nanchang, China
| | - Yao Xu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ling Wu
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyan Mao
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Fu
- Shanghai Ji’ai Genetics and IVF Institute, Obstetrics and Gynecology Hospital, and
| | - Bin Li
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zheng Yan
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Rong Shi
- Reproductive Medicine Center, Northwest Women’s and Children’s Hospital, Xi’an, China
| | - Xia Xue
- Reproductive Medicine Center, Northwest Women’s and Children’s Hospital, Xi’an, China
| | - Jian Mu
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Zhihua Zhang
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Tianyu Wu
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Lin Zhao
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Weijie Wang
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Zhou Zhou
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Jie Dong
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Qiaoli Li
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Li Jin
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Lin He
- Bio-X Center, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoxi Sun
- Shanghai Ji’ai Genetics and IVF Institute, Obstetrics and Gynecology Hospital, and
| | - Ge Lin
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Yanping Kuang
- Reproductive Medicine Center, Shanghai Ninth Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Wang
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
| | - Qing Sang
- Institute of Pediatrics, Children’s Hospital of Fudan University, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, Fudan University, Shanghai, China
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22
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Berkay EG, Şoroğlu CV, Kalaycı T, Uyguner ZO, Akçapınar GB, Başaran S. A new enrichment approach for candidate gene detection in unexplained recurrent pregnancy loss and implantation failure. Mol Genet Genomics 2023; 298:253-272. [PMID: 36385415 DOI: 10.1007/s00438-022-01972-5] [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: 06/11/2022] [Accepted: 10/28/2022] [Indexed: 11/18/2022]
Abstract
Recurrent pregnancy loss (RPL) and implantation failure (RIF) are obstacles to livebirth and multifactorial conditions in which nearly half of the cases remain unexplained, and we aimed to identify maternal candidate gene variants and pathways for RPL and RIF by analyzing whole-exome sequencing (WES) data via a new detailed bioinformatics approach. A retrospective cohort study was applied to 35 women with normal chromosomal configuration diagnosed with unexplained RPL and/or RIF. WES and comprehensive bioinformatics analyses were performed. Published gene expression datasets (n = 46) were investigated for candidate genes. Variant effects on protein structure were analyzed for 12 proteins, and BUB1B was visualized in silico. WES and bioinformatics analyses are effective and applicable for studying URPL and RIF to detect mutations, as we suggest new candidates to explain the etiology. Forty-three variants in 39 genes were detected in 29 women, 7 of them contributing to oligogenic inheritance. These genes were related to implantation, placentation, coagulation, metabolism, immune system, embryological development, cell cycle-associated processes, and ovarian functions. WES, genomic variant analyses, expression data, and protein configuration studies offer new and promising ways to investigate the etiology of URPL and RIF. Discovering etiology-identifying genetic factors can help manage couples' needs and develop personalized therapies and new pharmaceutical products in the future. The classical approach with chromosomal analysis and targeted gene panel testing is insufficient in these cases; the exome data provide a promising way to detect and understand the possible clinical effects of the variant and its alteration on protein structure.
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Affiliation(s)
- Ezgi Gizem Berkay
- Department of Medical Genetics, Istanbul Medical Faculty, Istanbul University, 34093, Istanbul, Turkey. .,Department of Basic Sciences, Dentistry Faculty, Istanbul Kent University, 34433, Istanbul, Turkey.
| | - Can Veysel Şoroğlu
- Department of Medical Biotechnology, Institute of Health Sciences, Acıbadem Mehmet Ali Aydınlar University, 34684, Istanbul, Turkey
| | - Tuğba Kalaycı
- Division of Medical Genetics, Department of Internal Medicine, Istanbul Medical Faculty, Istanbul University, 34093, Istanbul, Turkey
| | - Zehra Oya Uyguner
- Department of Medical Genetics, Istanbul Medical Faculty, Istanbul University, 34093, Istanbul, Turkey
| | - Günseli Bayram Akçapınar
- Department of Medical Biotechnology, Institute of Health Sciences, Acıbadem Mehmet Ali Aydınlar University, 34684, Istanbul, Turkey
| | - Seher Başaran
- Department of Medical Genetics, Istanbul Medical Faculty, Istanbul University, 34093, Istanbul, Turkey
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23
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Almonacid M, Verlhac MH. A mitochondrial niche protects oocyte RNPs. Dev Cell 2022; 57:2599-2600. [PMID: 36473456 DOI: 10.1016/j.devcel.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Preserving maternal RNA transmitted by the oocyte to its progeny is an essential aspect of oogenesis, yet not much is known about how this is achieved in mammalian species. In a recent issue of Science, Cheng et al. uncover a novel structure involved in this fundamental aspect.
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Affiliation(s)
- Maria Almonacid
- Center for Interdisciplinary Research in Biology, Collège de France, CNRS, INSERM, Université PSL, Paris, France.
| | - Marie-Hélène Verlhac
- Center for Interdisciplinary Research in Biology, Collège de France, CNRS, INSERM, Université PSL, Paris, France
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24
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Restraint stress of female mice during oocyte development facilitates oocyte postovulatory aging. Aging (Albany NY) 2022; 14:9186-9199. [PMID: 36441534 PMCID: PMC9740362 DOI: 10.18632/aging.204400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022]
Abstract
Studies suggest that psychological stress on women can impair their reproduction and that postovulatory oocyte aging (POA) might increase the risk of early pregnancy loss and affect offspring's reproductive fitness and longevity. However, whether psychological stress during oocyte development would facilitate POA is unknown but worth exploring to understand the mechanisms by which psychological stress and POA damage oocytes. This study observed effects of female restraint stress during oocyte development (FRSOD) on oocyte resistance to POA. Female mice were restrained for 48 h before superovulation, and they were sacrificed at different intervals after ovulation to recover aging oocytes for analyzing their early and late aged characteristics. The effects of FRSOD on aging oocytes included: (1) increasing their susceptibility to activation stimulus with elevated cytoplasmic calcium; (2) impairing their developmental potential with downregulated expression of development-beneficial genes; (3) facilitating degeneration, cytoplasmic fragmentation and apoptosis; (4) worsening the disorganization of cortical granules and spindle/chromosomes; and (5) impairing redox potential with increased oxidative stress. In conclusion, FRSOD impairs oocyte resistance to POA, so that stressed oocytes become aged significantly quicker than unstressed controls. Thus, couples wishing to achieve pregnancy should take steps to avoid not only fertilization of aged oocytes but also pregestational stressful life events.
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25
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Qin Y, Feng S, Zheng M, Liu X, Zhao J, Zhao Q, Ye J, Mi J, Zhong Y. Progesterone Promotes In Vitro Maturation of Domestic Dog Oocytes Leading to Successful Live Births. Life (Basel) 2022; 12:life12111778. [PMID: 36362933 PMCID: PMC9698205 DOI: 10.3390/life12111778] [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: 10/08/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Gene-edited dogs are promising models for biomedical research because they have hundreds of genetic diseases that are similar to humans. A common method for producing gene-edited dogs is assisted reproductive technology (ART) using in vivo oocytes or embryos, but it is much more inefficient and has a higher cost. ART for dogs has lagged mostly because of the lack of an efficient in vitro maturation system. Because early maturation of canine oocytes occurs in follicles with extremely high concentrations of progesterone (P4), we hypothesize that P4 has an important role during maturation. In this study, we obtained ovaries of female dogs and collected cumulus−oocyte complexes, which were cultured in vitro in microdrops containing different P4 concentrations (0, 10, 40, 100 or 200 µg/mL). We found that 40 µg/mL P4 produced the highest oocyte maturation rate (29.7% ± 7.1%, p < 0.05). We also evaluated the quality of in vitro matured oocytes by in vitro fertilization and single-cell RNA sequencing, and both indicated an improvement in oocyte developmental potential. In conclusion, we successfully obtained the first live dogs using in vitro matured oocytes by adding P4 to optimize the in vitro maturation system of canine oocytes, and established a new and low-cost method to produce dogs via in vitro maturation and in vitro fertilization.
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Affiliation(s)
- Yumin Qin
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Shenjiong Feng
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Min Zheng
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Xiaojuan Liu
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Jianping Zhao
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Qintao Zhao
- Nanchang Police-dog Base of the Ministry of Public Security of PRC, Nanchang 330100, China
| | - Junhua Ye
- Nanchang Police-dog Base of the Ministry of Public Security of PRC, Nanchang 330100, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
| | - Jidong Mi
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
| | - Yougang Zhong
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
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26
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Xu M, Wu W, Zhao M, Chung JPW, Li TC, Chan DYL. Common dysmorphic oocytes and embryos in assisted reproductive technology laboratory in association with gene alternations. Int J Biochem Cell Biol 2022; 152:106298. [PMID: 36122887 DOI: 10.1016/j.biocel.2022.106298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/29/2022]
Abstract
Amorphic or defected oocytes and embryos are commonly observed in assisted reproductive technology (ART) laboratories. It is believed that a proper gene expression at each stage of embryo development contributes to the possibility of a decent-quality embryo leading to successful implantation. Many studies reported that several defects in embryo morphology are associated with gene expressions during in vitro fertilization (IVF) treatment. There is lacking literature review on summarizing common morphological defects about gene alternations. In this review, we summarized the current literature. We selected 64 genes that have been reported to be involved in embryo morphological abnormalities in animals and humans, 30 of which were identified in humans and might be the causes of embryonic changes. Five papers focusing on associations of multiple gene expressions and embryo abnormalities using RNA transcriptomes were also included during the search. We have also reviewed our time-lapse image database with over 3000 oocytes/embryos to show morphological defects possibly related to gene alternations reported previously in the literature. This holistic review can better understand the associations between gene alternations and morphological changes. It is also beneficial to select important biomarkers with strong evidence in IVF practice and reveal their potential application in embryo selection. Also, identifying genes may help patients with genetic disorders avoid unnecessary treatments by providing preimplantation genetic testing for monogenic/single gene defects (PGT-M), reduce embryo replacements by less potential, and help scientists develop new methods for oocyte/embryo research in the near future.
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Affiliation(s)
- Murong Xu
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Waner Wu
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Mingpeng Zhao
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; Department of Reproductive Medicine, Department of Obstetrics and Gynaecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jacqueline Pui Wah Chung
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Tin Chiu Li
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - David Yiu Leung Chan
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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27
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Cheng S, Altmeppen G, So C, Welp LM, Penir S, Ruhwedel T, Menelaou K, Harasimov K, Stützer A, Blayney M, Elder K, Möbius W, Urlaub H, Schuh M. Mammalian oocytes store mRNAs in a mitochondria-associated membraneless compartment. Science 2022; 378:eabq4835. [PMID: 36264786 DOI: 10.1126/science.abq4835] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Full-grown oocytes are transcriptionally silent and must stably maintain the messenger RNAs (mRNAs) needed for oocyte meiotic maturation and early embryonic development. However, where and how mammalian oocytes store maternal mRNAs is unclear. Here, we report that mammalian oocytes accumulate mRNAs in a mitochondria-associated ribonucleoprotein domain (MARDO). MARDO assembly around mitochondria was promoted by the RNA-binding protein ZAR1 and directed by an increase in mitochondrial membrane potential during oocyte growth. MARDO foci coalesced into hydrogel-like matrices that clustered mitochondria. Maternal mRNAs stored in the MARDO were translationally repressed. Loss of ZAR1 disrupted the MARDO, dispersed mitochondria, and caused a premature loss of MARDO-localized mRNAs. Thus, a mitochondria-associated membraneless compartment controls mitochondrial distribution and regulates maternal mRNA storage, translation, and decay to ensure fertility in mammals.
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Affiliation(s)
- Shiya Cheng
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Gerrit Altmeppen
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Chun So
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Luisa M Welp
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Sarah Penir
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Torben Ruhwedel
- Electron Microscopy City Campus, Department of Neurogenetics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Katerina Menelaou
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.,Bourn Hall Clinic, Cambridge, UK
| | - Katarina Harasimov
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Alexandra Stützer
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | | | | | - Wiebke Möbius
- Electron Microscopy City Campus, Department of Neurogenetics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany
| | - Henning Urlaub
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.,Bioanalytics Group, Institute for Clinical Chemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Melina Schuh
- Department of Meiosis, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany
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28
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Zhao X, Feng B, Wang Q, Tang L, Liu Q, Ma W, Li C, Shao C. Cloning of the Maternal Effector Gene org and Its Regulation by lncRNA ORG-AS in Chinese Tongue Sole (Cynoglossus semilaevis). Int J Mol Sci 2022; 23:ijms23158605. [PMID: 35955739 PMCID: PMC9369028 DOI: 10.3390/ijms23158605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/24/2022] [Accepted: 07/27/2022] [Indexed: 02/01/2023] Open
Abstract
Maternal effector genes (MEGs) encode maternal RNA and protein, accumulating in the cytoplasm of oocytes. During oocyte development, MEGs participate in oocyte meiosis and promote oocyte development. And MEGs can also regulate maternal transcriptome stability and promote maternal–zygotic transition (MTZ) in early embryonic development. Long noncoding RNAs (lncRNAs), as new epigenetic regulators, can regulate gene expression at both the transcriptional and post-transcriptional levels through cis- or trans-regulation. The oogenesis-related gene org is a germ-cell-specific gene in fish, but the role of org in embryonic development and oogenesis has rarely been studied, and the knowledge of the lncRNA-mediated regulation of org is limited. In this study, we cloned and identified the org gene of Chinese tongue sole (Cynoglossus semilaevis), and we identified a lncRNA named lncRNA ORG-anti-sequence (ORG-AS), located at the reverse overlapping region of org. The results of qRT-PCR and FISH demonstrated that org was highly expressed during the early stages of embryonic development and oogenesis and was located in the cytoplasm of oocytes. ORG-AS was expressed at low levels in the ovary and colocalized with org in the cytoplasm of oocytes. In vitro experiments showed that overexpression of ORG-AS inhibited org expression. These results suggest that org, as a MEG in C. semilaevis, participates in the MTZ and the oogenesis. The lncRNA ORG-AS negatively regulates the gene expression of org through trans-regulation. These new findings broaden the function of MEGs in embryonic development and the oogenesis of bony fish and prove that lncRNAs are important molecular factors regulating org.
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Affiliation(s)
- Xiaona Zhao
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; (X.Z.); (C.L.)
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Bo Feng
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Qian Wang
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
| | - Lili Tang
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Qian Liu
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Wenxiu Ma
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; (X.Z.); (C.L.)
| | - Changwei Shao
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; (X.Z.); (C.L.)
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
- Correspondence: ; Tel.: +86-139-6962-5483
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29
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Xiao H, Xu Z, Zhu X, Wang J, Zheng Q, Zhang Q, Xu C, Tao W, Wang D. Cortisol safeguards oogenesis by promoting follicular cell survival. SCIENCE CHINA. LIFE SCIENCES 2022; 65:1563-1577. [PMID: 35167018 DOI: 10.1007/s11427-021-2051-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
The role of glucocorticoids in oogenesis remains to be elucidated. cyp11c1 encodes the key enzyme involved in the synthesis of cortisol, the major glucocorticoid in teleosts. In our previous study, we mutated cyp11c1 in tilapia and analyzed its role in spermatogenesis. In this study, we analyzed its role in oogenesis. cyp11c1+/- XX tilapia showed normal ovarian morphology but poor egg quality, as indicated by the mortality of embryos before 3 d post fertilization, which could be partially rescued by the supplement of exogenous cortisol to the mother fish. Transcriptome analyses revealed reduced expression of maternal genes in the eggs of the cyp11c1+/- XX fish. The cyp11c1-/- females showed impaired vitellogenesis and arrested oogenesis due to significantly decreased serum cortisol. Further analyses revealed decreased serum E2 level and expression of amh, an important regulator of follicular cell development, and increased follicular cell apoptosis in the ovaries of cyp11c1-/- XX fish, which could be rescued by supplement of either exogenous cortisol or E2. Luciferase assays revealed a direct regulation of cortisol and E2 on amh transcription via GRs or ESRs. Taken together, our results demonstrate that cortisol safeguards oogenesis by promoting follicular cell survival probably via Amh signaling.
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Affiliation(s)
- Hesheng Xiao
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Zhen Xu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xi Zhu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Jingrong Wang
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Qiaoyuan Zheng
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Qingqing Zhang
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Chunmei Xu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Wenjing Tao
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China.
| | - Deshou Wang
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China.
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30
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Ding B, Gao D, Wang X, Liu L, Sun J, Liang M, Wu F, Liu Y, Zhang Y, Li X, Li W. Maternal DDB1 regulates apoptosis and lineage differentiation in porcine preimplantation embryos. Reprod Fertil Dev 2022; 34:844-854. [PMID: 35724990 DOI: 10.1071/rd22028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/26/2022] [Indexed: 11/23/2022] Open
Abstract
CONTEXT Maternal-effect genes (MEGs) play a critical role in modulating both cellular and molecular biology events in preimplantation embryonic development. Damage-specific DNA binding protein 1 (DDB1) is a gene that participates in meiotic resumption, ovulation, and embryonic stem cell maintenance. Its function in preimplantation development is not well-studied. AIMS We aimed to explore the expression pattern, genomic heritage, and potential molecular mechanisms of DDB1 in preimplantation embryos in porcine. METHODS In this study, RNA interference, microinjection, RT-qPCR, immunofluorescence staining and single-cell RNA sequencing were used to explore the molecular function of DDB1 in porcine preimplantation embryos. KEY RESULTS DDB1 was found to be expressed in germinal vesicle (GV) and Meiosis II (MII) oocytes and in preimplantation embryos. We confirmed it is a MEG. DDB1-deficient blastocysts had a significantly reduced number of trophectoderm cells, an increased apoptotic cell number and increased apoptosis index. According to a next-generation sequencing (NGS) analysis, 236 genes (131 upregulated and 105 downregulated) significantly changed in the DDB1-deficient morula. The myeloid leukaemia factor 1 (MLF1) and yes-associated protein 1 (YAP1) expressions were significantly upregulated and downregulated respectively, in the DDB1-deficient morula. In combination with the decreased expression of TEAD4, CDX2, GATA3, OCT4, and NANOG and the increased expression of SOX2 in the blastocyst, DDB1 may play a role in determining lineage differentiation and pluripotency maintenance. CONCLUSIONS DDB1 is a MEG and it plays a crucial role in porcine preimplantation embryonic development. IMPLICATIONS This study provides a theoretical basis for further understanding the molecular mechanisms of preimplantation embryo development.
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Affiliation(s)
- Biao Ding
- Reproductive Medicine Center, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - Di Gao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Xuegu Wang
- Reproductive Medicine Center, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - Lei Liu
- Reproductive Medicine Center, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - Junpei Sun
- Reproductive Medicine Center, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - Meng Liang
- School of Life Science, Bengbu Medical College, Bengbu 233030, China
| | - Fengrui Wu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Fuyang Normal University, Fuyang 236041, China
| | - Yong Liu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Fuyang Normal University, Fuyang 236041, China
| | - Yunhai Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Xiang Li
- Reproductive Medicine Center, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - Wenyong Li
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Fuyang Normal University, Fuyang 236041, China
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31
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Vicente JS, Marco-Jiménez F, Pérez-García M, Naturil-Alfonso C, Peñaranda DS, Viudes-de-Castro MP. Oocyte quality and in vivo embryo survival after ovarian stimulation in nulliparous and multiparous rabbit does. Theriogenology 2022; 189:53-58. [PMID: 35724452 DOI: 10.1016/j.theriogenology.2022.06.003] [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: 02/22/2022] [Revised: 05/27/2022] [Accepted: 06/04/2022] [Indexed: 11/24/2022]
Abstract
Superovulation treatments aim to stimulate multifollicular recruitment, maximizing the number of oocytes or transferable embryos produced. Factors associated with the superovulation protocol, female characteristics and many other factors are determinants in the number and quality of oocytes obtained. An accurate way to assess oocyte quality more precise than morphological appearance is genetic expression. The present study aims to compare the response of nulliparous and multiparous females to superovulatory stimulation, studying its effect on the expression of some genes associated with the activation, growth, development and oocyte-embryo transition of oocytes, as well as its impact on in vivo embryonic development and viability rate at birth. In a first experiment, the effect of stimulation treatment on the ovulation response and the expression of the MSY2, MATER, ITPR1, ITPR2, ITPR3, eIF4E, PAR1, PAPOL-A, PAPOL-G, ZAR1 and YY1 genes in nulliparous and multiparous females were determined. In a second experiment, the implantation and viability at birth of embryos from superovulated nulliparous and multiparous females were analysed. The ovulation rate was significantly higher in the superovulation groups than in the control groups. The ovulation rate was significantly increased in nulliparous females compared with multiparous does. From the eleven genes analysed, only the expression of MATER, PAPOL-A, PAPOL-G and ZAR-1 genes was shown to be different among experimental groups. Finally, in terms of implantation rate and viability at birth, the nulliparous control group showed better results than the rest of the groups. Both hyperstimulation treatment and reproductive female's history seem to alter the transcriptome of important genes related to oocyte maturation and competence acquisition, affecting in vivo embryo viability.
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Affiliation(s)
- J S Vicente
- Institute of Science and Animal Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain
| | - F Marco-Jiménez
- Institute of Science and Animal Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain
| | - M Pérez-García
- Institute of Science and Animal Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain
| | - C Naturil-Alfonso
- Institute of Science and Animal Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain
| | - D S Peñaranda
- Institute of Science and Animal Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain
| | - M P Viudes-de-Castro
- Centro de Investigación y Tecnología Animal (CITA), Instituto Valenciano de Investigaciones Agrarias (IVIA), Castellón, Spain.
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32
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Sendra M, Pereiro P, Yeste MP, Novoa B, Figueras A. Surgical face masks as a source of emergent pollutants in aquatic systems: Analysis of their degradation product effects in Danio rerio through RNA-Seq. JOURNAL OF HAZARDOUS MATERIALS 2022; 428:128186. [PMID: 35042165 PMCID: PMC9761780 DOI: 10.1016/j.jhazmat.2021.128186] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/14/2021] [Accepted: 12/28/2021] [Indexed: 05/06/2023]
Abstract
Surgical face masks are the most popularised and effective personal equipment for protecting public health during the COVID-19 pandemic. They are composed of plastic polymer fibres with a large amount of inorganic and organic compounds that can be released into aquatic environments through degradation processes. This source of microplastics and inorganic and organic substances could potentially impact aquatic organisms. In this study, the toxicogenomic effects of face masks at different stages of degradation in water were analysed in zebrafish larvae (Danio rerio) through RNA-Seq. Larvae were exposed for 10 days to three treatments: 1) face mask fragments in an initial stage of degradation (poorly degraded masks -PDM- products) with the corresponding water; 2) face mask fragments in an advanced stage of degradation (highly degraded masks -HDM- products) with the corresponding water; and 3) water derived from HDM (W-HDM). Transcriptome analyses revealed that the three treatments provoked the down-regulation of genes related to reproduction, especially the HDM products, suggesting that degradation products derived from face masks could act as endocrine disruptors. The affected genes are involved in different steps of reproduction, including gametogenesis, sperm-egg recognition and binding or fertilisation. Immune-related genes and metabolic processes were also differentially affected by the treatments.
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Affiliation(s)
- Marta Sendra
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain
| | - Patricia Pereiro
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain
| | - María Pilar Yeste
- Department of Material Science, Metallurgical Engineering and Inorganic Chemistry, University of Cádiz, Spain
| | - Beatriz Novoa
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain.
| | - Antonio Figueras
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain.
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33
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Ozturk S. Molecular determinants of the meiotic arrests in mammalian oocytes at different stages of maturation. Cell Cycle 2022; 21:547-571. [PMID: 35072590 PMCID: PMC8942507 DOI: 10.1080/15384101.2022.2026704] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 12/21/2021] [Accepted: 01/03/2022] [Indexed: 01/26/2023] Open
Abstract
Mammalian oocytes undergo two rounds of developmental arrest during maturation: at the diplotene of the first meiotic prophase and metaphase of the second meiosis. These arrests are strictly regulated by follicular cells temporally producing the secondary messengers, cAMP and cGMP, and other factors to regulate maturation promoting factor (composed of cyclin B1 and cyclin-dependent kinase 1) levels in the oocytes. Out of these normally appearing developmental arrests, permanent arrests may occur in the oocytes at germinal vesicle (GV), metaphase I (MI), or metaphase II (MII) stage. This issue may arise from absence or altered expression of the oocyte-related genes playing key roles in nuclear and cytoplasmic maturation. Additionally, the assisted reproductive technology (ART) applications such as ovarian stimulation and in vitro culture conditions both of which harbor various types of chemical agents may contribute to forming the permanent arrests. In this review, the molecular determinants of developmental and permanent arrests occurring in the mammalian oocytes are comprehensively evaluated in the light of current knowledge. As number of permanently arrested oocytes at different stages is increasing in ART centers, potential approaches for inducing permanent arrests to obtain competent oocytes are discussed.
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Affiliation(s)
- Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University School of Medicine, Antalya, Turkey
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34
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Innocenti F, Fiorentino G, Cimadomo D, Soscia D, Garagna S, Rienzi L, Ubaldi FM, Zuccotti M. Maternal effect factors that contribute to oocytes developmental competence: an update. J Assist Reprod Genet 2022; 39:861-871. [PMID: 35165782 PMCID: PMC9051001 DOI: 10.1007/s10815-022-02434-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/09/2022] [Indexed: 11/30/2022] Open
Abstract
Oocyte developmental competence is defined as the capacity of the female gamete to be fertilized and sustain development to the blastocyst stage. Epigenetic reprogramming, a correct cell division pattern, and an efficient DNA damage response are all critical events that, before embryonic genome activation, are governed by maternally inherited factors such as maternal-effect gene (MEG) products. Although these molecules are stored inside the oocyte until ovulation and exert their main role during fertilization and preimplantation development, some of them are already functioning during folliculogenesis and oocyte meiosis resumption. This mini review summarizes the crucial roles played by MEGs during oocyte maturation, fertilization, and preimplantation development with a direct/indirect effect on the acquisition or maintenance of oocyte competence. Our aim is to inspire future research on a topic with potential clinical perspectives for the prediction and treatment of female infertility.
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Affiliation(s)
- Federica Innocenti
- GeneraLife IVF, Clinica Valle Giulia, via G. de Notaris, 2b, 00197, Rome, Italy
| | - Giulia Fiorentino
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy.,Center for Health Technologies, University of Pavia, Pavia, Italy
| | - Danilo Cimadomo
- GeneraLife IVF, Clinica Valle Giulia, via G. de Notaris, 2b, 00197, Rome, Italy.
| | - Daria Soscia
- GeneraLife IVF, Clinica Valle Giulia, via G. de Notaris, 2b, 00197, Rome, Italy
| | - Silvia Garagna
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy.,Center for Health Technologies, University of Pavia, Pavia, Italy
| | - Laura Rienzi
- GeneraLife IVF, Clinica Valle Giulia, via G. de Notaris, 2b, 00197, Rome, Italy
| | | | - Maurizio Zuccotti
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy.,Center for Health Technologies, University of Pavia, Pavia, Italy
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35
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Jiang ZY, Fan HY. Five questions toward mRNA degradation in oocytes and preimplantation embryos: When, who, to whom, how, and why? Biol Reprod 2022; 107:62-75. [DOI: 10.1093/biolre/ioac014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 01/10/2022] [Accepted: 01/15/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
RNA, the primary product of the genome, is subject to various biological events during its lifetime. During mammalian gametogenesis and early embryogenesis, germ cells and preimplantation embryos undergo marked changes in the transcriptome, including mRNA turnover. Various factors, including specialized proteins, RNAs, and organelles, function in an intricate degradation system, and the degradation selectivity is determined by effectors and their target mRNAs. RNA homeostasis regulators and surveillance factors function in the global transcriptome of oocytes and somatic cells. Other factors, including BTG4, PABPN1L, the CCR4-NOT subunits, CNOT6L and CNOT7, and TUTs, are responsible for two maternal mRNA avalanches: M- and Z-decay. In this review, we discuss recent advances in mRNA degradation mechanisms in mammalian oocytes and preimplantation embryos. We focused on the studies in mice, as a model mammalian species, and on RNA turnover effectors and the cis-elements in targeting RNAs.
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Affiliation(s)
- Zhi-Yan Jiang
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Heng-Yu Fan
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
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36
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Wu YK, Fan HY. Revisiting ZAR proteins: the understudied regulator of female fertility and beyond. Cell Mol Life Sci 2022; 79:92. [PMID: 35072788 PMCID: PMC11071961 DOI: 10.1007/s00018-022-04141-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/02/2022] [Accepted: 01/10/2022] [Indexed: 11/25/2022]
Abstract
Putative RNA-binding proteins (RBPs), zygote arrested-1 (ZAR1), and ZAR2 (also known as ZAR1L), have been identified as maternal factors that mainly function in oogenesis and embryogenesis. Despite divergence in their spatio-temporal expression among species, the CxxC structure of the C-terminus of ZAR proteins is highly conserved and is reported to be the functional domain for the activity of the RBPs of ZAR proteins. In oocytes from Xenopus laevis and zebrafish, ZAR proteins have been reported to bind to maternal transcripts and inhibit translation in immature growing oocytes, whereas in fully grown mouse oocytes, they promote the translation during meiotic maturation. Thus, ZAR1 and ZAR2 may be required for the maternal-to-zygotic transition by stabilizing the maternal transcriptome in oocytes with partial functional redundancy. In addition, recent studies have suggested non-ovarian expression and function of ZAR proteins, particularly their involvement in tumorigenesis. ZAR proteins are potentially associated with tumor suppressors and can serve as epigenetically inactivated cancer biomarkers. In this review, studies on Zar1/2 are systematically summarized, and some issues that require discussion and further investigation are introduced as perspectives.
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Affiliation(s)
- Yu-Ke Wu
- Life Sciences Institute, Zhejiang University, 866 Yu Hang Tang Rd., Hangzhou, 310058, China
| | - Heng-Yu Fan
- Life Sciences Institute, Zhejiang University, 866 Yu Hang Tang Rd., Hangzhou, 310058, China.
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37
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Aharon D, Marlow FL. Sexual determination in zebrafish. Cell Mol Life Sci 2021; 79:8. [PMID: 34936027 PMCID: PMC11072476 DOI: 10.1007/s00018-021-04066-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 11/12/2021] [Accepted: 11/29/2021] [Indexed: 01/10/2023]
Abstract
Zebrafish have emerged as a major model organism to study vertebrate reproduction due to their high fecundity and external development of eggs and embryos. The mechanisms through which zebrafish determine their sex have come under extensive investigation, as they lack a definite sex-determining chromosome and appear to have a highly complex method of sex determination. Single-gene mutagenesis has been employed to isolate the function of genes that determine zebrafish sex and regulate sex-specific differentiation, and to explore the interactions of genes that promote female or male sexual fate. In this review, we focus on recent advances in understanding of the mechanisms, including genetic and environmental factors, governing zebrafish sex development with comparisons to gene functions in other species to highlight conserved and potentially species-specific mechanisms for specifying and maintaining sexual fate.
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Affiliation(s)
- Devora Aharon
- Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy, Place Box 1020, New York, NY, 10029-6574, USA
| | - Florence L Marlow
- Department of Cell, Developmental, and Regenerative Biology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy, Place Box 1020, New York, NY, 10029-6574, USA.
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Israel S, Drexler HCA, Fuellen G, Boiani M. The COP9 signalosome subunit 3 is necessary for early embryo survival by way of a stable protein deposit in mouse oocytes. Mol Hum Reprod 2021; 27:gaab048. [PMID: 34264319 DOI: 10.1093/molehr/gaab048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 06/18/2021] [Indexed: 11/13/2022] Open
Abstract
Investigations of genes required in early mammalian development are complicated by protein deposits of maternal products, which continue to operate after the gene locus has been disrupted. This leads to delayed phenotypic manifestations and underestimation of the number of genes known to be needed during the embryonic phase of cellular totipotency. Here we expose a critical role of the gene Cops3 by showing that it protects genome integrity during the 2-cell stage of mouse development, in contrast to the previous functional assignment at postimplantation. This new role is mediated by a substantial deposit of protein (94th percentile of the proteome), divided between an exceptionally stable cortical rim, which is prevalent in oocytes, and an ancillary deposit in the embryonic nuclei. Since protein abundance and stability defeat prospects of DNA- or RNA-based gene inactivation in oocytes, we harnessed a classical method next to an emerging method for protein inactivation: antigen masking (for functional inhibition) versus TRIM21-mediated proteasomal degradation, also known as 'Trim away' (for physical removal). Both resulted in 2-cell embryo lethality, unlike the embryos receiving anti-green fluorescent protein. Comparisons between COPS3 protein-targeted and non-targeted embryos revealed large-scale transcriptome differences, which were most evident for genes associated with biological functions critical for RNA metabolism and for the preservation of genome integrity. The gene expression abnormalities associated with COPS3 inactivation were confirmed in situ by the occurrence of DNA endoreduplication and DNA strand breaks in 2-cell embryos. These results recruit Cops3 to the small family of genes that are necessary for early embryo survival. Overall, assigning genes with roles in embryogenesis may be less safe than assumed, if the protein products of these genes accumulate in oocytes: the inactivation of a gene at the protein level can expose an earlier phenotype than that identified by genetic techniques such as conventional gene silencing.
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Affiliation(s)
- Steffen Israel
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Muenster, Germany
| | - Hannes C A Drexler
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Muenster, Germany
| | - Georg Fuellen
- Rostock University Medical Center, Institute for Biostatistics and Informatics in Medicine and Aging Research (IBIMA), Rostock, Germany
| | - Michele Boiani
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, Muenster, Germany
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Molecular Drivers of Developmental Arrest in the Human Preimplantation Embryo: A Systematic Review and Critical Analysis Leading to Mapping Future Research. Int J Mol Sci 2021; 22:ijms22158353. [PMID: 34361119 PMCID: PMC8347543 DOI: 10.3390/ijms22158353] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/28/2021] [Accepted: 07/31/2021] [Indexed: 12/14/2022] Open
Abstract
Developmental arrest of the preimplantation embryo is a multifactorial condition, characterized by lack of cellular division for at least 24 hours, hindering the in vitro fertilization cycle outcome. This systematic review aims to present the molecular drivers of developmental arrest, focusing on embryonic and parental factors. A systematic search in PubMed/Medline, Embase and Cochrane-Central-Database was performed in January 2021. A total of 76 studies were included. The identified embryonic factors associated with arrest included gene variations, mitochondrial DNA copy number, methylation patterns, chromosomal abnormalities, metabolic profile and morphological features. Parental factors included, gene variation, protein expression levels and infertility etiology. A valuable conclusion emerging through critical analysis indicated that genetic origins of developmental arrest analyzed from the perspective of parental infertility etiology and the embryo itself, share common ground. This is a unique and long-overdue contribution to literature that for the first time presents an all-inclusive methodological report on the molecular drivers leading to preimplantation embryos’ arrested development. The variety and heterogeneity of developmental arrest drivers, along with their inevitable intertwining relationships does not allow for prioritization on the factors playing a more definitive role in arrested development. This systematic review provides the basis for further research in the field.
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Bebbere D, Albertini DF, Coticchio G, Borini A, Ledda S. The subcortical maternal complex: emerging roles and novel perspectives. Mol Hum Reprod 2021; 27:6311673. [PMID: 34191027 DOI: 10.1093/molehr/gaab043] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/19/2021] [Indexed: 11/13/2022] Open
Abstract
Since its recent discovery, the subcortical maternal complex (SCMC) is emerging as a maternally inherited and crucial biological structure for the initial stages of embryogenesis in mammals. Uniquely expressed in oocytes and preimplantation embryos, where it localizes to the cell subcortex, this multiprotein complex is essential for early embryo development in the mouse and is functionally conserved across mammalian species, including humans. The complex has been linked to key processes leading the transition from oocyte to embryo, including meiotic spindle formation and positioning, regulation of translation, organelle redistribution, and epigenetic reprogramming. Yet, the underlying molecular mechanisms for these diverse functions are just beginning to be understood, hindered by unresolved interplay of SCMC components and variations in early lethal phenotypes. Here we review recent advances confirming involvement of the SCMC in human infertility, revealing an unexpected relationship with offspring health. Moreover, SCMC organization is being further revealed in terms of novel components and interactions with additional cell constituents. Collectively, this evidence prompts new avenues of investigation into possible roles during the process of oogenesis and the regulation of maternal transcript turnover during the oocyte to embryo transition.
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Affiliation(s)
- Daniela Bebbere
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | | | | | | | - Sergio Ledda
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
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Oh KP, Shiels AB, Shiels L, Blondel DV, Campbell KJ, Saah JR, Lloyd AL, Thomas PQ, Gould F, Abdo Z, Godwin JR, Piaggio AJ. Population genomics of invasive rodents on islands: Genetic consequences of colonization and prospects for localized synthetic gene drive. Evol Appl 2021; 14:1421-1435. [PMID: 34025776 PMCID: PMC8127709 DOI: 10.1111/eva.13210] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/22/2022] Open
Abstract
Introduced rodent populations pose significant threats worldwide, with particularly severe impacts on islands. Advancements in genome editing have motivated interest in synthetic gene drives that could potentially provide efficient and localized suppression of invasive rodent populations. Application of such technologies will require rigorous population genomic surveys to evaluate population connectivity, taxonomic identification, and to inform design of gene drive localization mechanisms. One proposed approach leverages the predicted shifts in genetic variation that accompany island colonization, wherein founder effects, genetic drift, and island-specific selection are expected to result in locally fixed alleles (LFA) that are variable in neighboring nontarget populations. Engineering of guide RNAs that target LFA may thus yield gene drives that spread within invasive island populations, but would have limited impacts on nontarget populations in the event of an escape. Here we used pooled whole-genome sequencing of invasive mouse (Mus musculus) populations on four islands along with paired putative source populations to test genetic predictions of island colonization and characterize locally fixed Cas9 genomic targets. Patterns of variation across the genome reflected marked reductions in allelic diversity in island populations and moderate to high degrees of differentiation from nearby source populations despite relatively recent colonization. Locally fixed Cas9 sites in female fertility genes were observed in all island populations, including a small number with multiplexing potential. In practice, rigorous sampling of presumptive LFA will be essential to fully assess risk of resistance alleles. These results should serve to guide development of improved, spatially limited gene drive design in future applications.
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Affiliation(s)
- Kevin P. Oh
- National Wildlife Research CenterUSDA APHIS Wildlife ServicesFort CollinsColoradoUSA
- Department of Microbiology, Immunology and PathologyColorado State UniversityFort CollinsColoradoUSA
| | - Aaron B. Shiels
- National Wildlife Research CenterUSDA APHIS Wildlife ServicesFort CollinsColoradoUSA
| | - Laura Shiels
- National Wildlife Research CenterUSDA APHIS Wildlife ServicesFort CollinsColoradoUSA
| | - Dimitri V. Blondel
- Department of Biological SciencesNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Karl J. Campbell
- Island ConservationPuerto AyoraEcuador
- School of Agriculture and Food SciencesThe University of QueenslandGattonQueenslandAustralia
| | - J. Royden Saah
- Island ConservationPuerto AyoraEcuador
- Genetic Engineering and Society CenterNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Alun L. Lloyd
- Genetic Engineering and Society CenterNorth Carolina State UniversityRaleighNorth CarolinaUSA
- Biomathematics Graduate Program and Department of MathematicsNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Paul Q. Thomas
- The Robinson Research Institute and School of MedicineThe University of AdelaideAdelaideSouth AustraliaAustralia
| | - Fred Gould
- Genetic Engineering and Society CenterNorth Carolina State UniversityRaleighNorth CarolinaUSA
- Department of Entomology and Plant PathologyNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Zaid Abdo
- Department of Microbiology, Immunology and PathologyColorado State UniversityFort CollinsColoradoUSA
| | - John R. Godwin
- Department of Biological SciencesNorth Carolina State UniversityRaleighNorth CarolinaUSA
- Genetic Engineering and Society CenterNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Antoinette J. Piaggio
- National Wildlife Research CenterUSDA APHIS Wildlife ServicesFort CollinsColoradoUSA
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Mizushima S, Sasanami T, Ono T, Matsuzaki M, Kansaku N, Kuroiwa A. Cyclin D1 gene expression is essential for cell cycle progression from the maternal-to-zygotic transition during blastoderm development in Japanese quail. Dev Biol 2021; 476:249-258. [PMID: 33905721 DOI: 10.1016/j.ydbio.2021.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/31/2021] [Accepted: 04/20/2021] [Indexed: 12/26/2022]
Abstract
Embryogenesis proceeds by a highly regulated series of events. In animals, maternal factors that accumulate in the egg cytoplasm control cell cycle progression at the initial stage of cleavage. However, cell cycle regulation is switched to a system governed by the activated nuclear genome at a specific stage of development, referred to as maternal-to-zygotic transition (MZT). Detailed molecular analyses have been performed on maternal factors and activated zygotic genes in MZT in mammals, fishes and chicken; however, the underlying mechanisms remain unclear in quail. In the present study, we demonstrated that MZT occurred at blastoderm stage V in the Japanese quail using novel gene targeting technology in which the CRISPR/Cas9 and intracytoplasmic sperm injection (ICSI) systems were combined. At blastoderm stage V, we found that maternal retinoblastoma 1 (RB1) protein expression was down-regulated, whereas the gene expression of cyclin D1 (CCND1) was initiated. When a microinjection of sgRNA containing CCND1-targeted sequencing and Cas9 mRNA was administered at the pronuclear stage, blastoderm development stopped at stage V and the down-regulation of RB1 did not occur. This result indicates the most notable difference from mammals in which CCND-knockout embryos are capable of developing beyond MZT. We also showed that CCND1 induced the phosphorylation of the serine/threonine residues of the RB1 protein, which resulted in the degradation of this protein. These results suggest that CCND1 is one of the key factors for RB1 protein degradation at MZT, and the elimination of RB1 may contribute to cell cycle progression after MZT during blastoderm development in the Japanese quail. Our novel technology, which combined the CRISPR/Cas9 system and ICSI, has the potential to become a powerful tool for avian-targeted mutagenesis.
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Affiliation(s)
- Shusei Mizushima
- Faculty of Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan.
| | - Tomohiro Sasanami
- Department of Applied Life Sciences, Faculty of Agriculture, Shizuoka University, Shizuoka, Shizuoka, 422-8529, Japan
| | - Tamao Ono
- Faculty of Agriculture, Shinshu University, Kamiina, Nagano, 399-4598, Japan
| | - Mei Matsuzaki
- Program of Food and AgriLife Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama, Higashi-Hiroshima City, Hiroshima, 739-8528, Japan
| | - Norio Kansaku
- Department of Animal Science and Biotechnology, Azabu University, Fuchinobe, Sagamihara, 229-8501, Japan
| | - Asato Kuroiwa
- Faculty of Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
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43
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Paonessa M, Borini A, Coticchio G. Genetic causes of preimplantation embryo developmental failure. Mol Reprod Dev 2021; 88:338-348. [PMID: 33843124 DOI: 10.1002/mrd.23471] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/27/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022]
Abstract
Embryo development requires orchestrated events, finely regulated at the molecular and cellular level by mechanisms which are progressively emerging from animal studies. With progress in genetic technologies-such as genome editing and single-cell RNA analysis-we can now assess embryo gene expression with increased precision and gain new insights into complex processes until recently difficult to explore. Multiple genes and regulative pathways have been identified for each developmental stage. We have learned that embryos with undisturbed and timely gene expression have higher chances of successful development. For example, selected genes are highly expressed during the first stages, being involved in cell adhesion, cell cycle, and regulation of transcription; other genes are instead crucial for lineage specification and therefore expressed at later stages. Due to ethical constraints, studies on human embryos remain scarce, mainly descriptive, and unable to provide functional evidence. This highlights the importance of animal studies as basic knowledge to test and appraise in a clinical context. In this review, we report on preimplantation development with a focus on genes whose impairment leads to developmental arrest. Preconceptional genetic screening could identify loss-of-function mutations of these genes; thereby, novel biomarkers of embryo quality could be adopted to improve diagnosis and treatment of infertility.
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Affiliation(s)
- Mariagrazia Paonessa
- 9.Baby, Family and Fertility Center, Bologna, Italy.,Casa di Cura Candela Spa, Palermo, Italy
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44
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Liu X, Li W, Yang Y, Chen K, Li Y, Zhu X, Ye H, Xu H. Transcriptome Profiling of the Ovarian Cells at the Single-Cell Resolution in Adult Asian Seabass. Front Cell Dev Biol 2021; 9:647892. [PMID: 33855024 PMCID: PMC8039529 DOI: 10.3389/fcell.2021.647892] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 02/23/2021] [Indexed: 11/13/2022] Open
Abstract
Single-cell RNA sequencing (scRNA-seq) is widely adopted for identifying the signature molecular markers or regulators in cells, as this would benefit defining or isolating various types of cells. Likewise, the signature transcriptome profile analysis at the single cell level would well illustrate the key regulators or networks involved in gametogenesis and gonad development in animals; however, there is limited scRNA-seq analysis on gonadal cells in lower vertebrates, especially in the sexual reversal fish species. In this study, we analyzed the molecular signature of several distinct cell populations of Asian seabass adult ovaries through scRNA-seq. We identified five cell types and also successfully validated some specific genes of germ cells and granulosa cells. Likewise, we found some key pathways involved in ovarian development that may concert germline-somatic interactions. Moreover, we compared the transcriptomic profiles across fruit fly, mammals, and fish, and thus uncovered the conservation and divergence in molecular mechanisms that might drive ovarian development. Our results provide a basis for studying the crucial features of germ cells and somatic cells, which will benefit the understandings of the molecular mechanisms behind gametogenesis and gonad development in fish.
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Affiliation(s)
- Xiaoli Liu
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.,Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Key Laboratory of Aquatic Sciences of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Wei Li
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Key Laboratory of Aquatic Sciences of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Yanping Yang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Key Laboratory of Aquatic Sciences of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Kaili Chen
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Yulin Li
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Xinping Zhu
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Key Laboratory of Aquatic Sciences of Chongqing, College of Fisheries, Southwest University, Chongqing, China
| | - Hua Ye
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Hongyan Xu
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.,Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Key Laboratory of Aquatic Sciences of Chongqing, College of Fisheries, Southwest University, Chongqing, China
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Herta AC, Akin N, Billooye K, Saucedo-Cuevas L, Lolicato F, Segers I, Anckaert E, Smitz J. Reversing complete mechanical transzonal projections disruption during mouse in vitro follicle culture with unaltered oocyte competence†. Biol Reprod 2021; 104:1373-1385. [PMID: 33709109 DOI: 10.1093/biolre/ioab045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/02/2021] [Accepted: 03/08/2021] [Indexed: 11/12/2022] Open
Abstract
In vitro oocyte growth is widely studied as an alternative fertility preservation approach. Several animal models are used to generate extensive information on this complex process regulated by the constant and dynamic interaction between the oocyte and its somatic compartment throughout follicle growth and maturation. A two-dimensional attachment mouse secondary follicle culture system was used to assess the oocyte's capacity to overcome disconnection from its somatic companions at different developmental stages for final competence acquisition. To test this, complete mechanical denudation of oocytes from preantral (PA) and early antral (EA) follicles was performed. Established endpoints were the oocyte's potential to reconnect with somatic cells and the impact of connectivity disruption on mature oocyte quality. This study proves that oocytes from PA and EA cultured mouse follicles can overcome complete denudation, restoring likely functional transzonal projections with no significant differences in meiotic and developmental competence compared with those from intact cultured follicles. These novel findings constitute good premises for developing successful strategies to rescue human oocyte competence in the context of in vitro culture approaches such as nonhuman chorionic gonadotropin triggered in vitro maturation.
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Affiliation(s)
- Anamaria-Cristina Herta
- Follicle Biology Laboratory, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Nazli Akin
- Follicle Biology Laboratory, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Katy Billooye
- Follicle Biology Laboratory, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Laura Saucedo-Cuevas
- Follicle Biology Laboratory, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Francesca Lolicato
- Follicle Biology Laboratory, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ingrid Segers
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ellen Anckaert
- Follicle Biology Laboratory, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Johan Smitz
- Follicle Biology Laboratory, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
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Zhang H, Yan K, Sui L, Li P, Du Y, Hu J, Li M, Yang X, Liang X. Low-level pyruvate inhibits early embryonic development and maternal mRNA clearance in mice. Theriogenology 2021; 166:104-111. [PMID: 33721681 DOI: 10.1016/j.theriogenology.2021.02.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 02/24/2021] [Accepted: 02/27/2021] [Indexed: 10/22/2022]
Abstract
Energy homeostasis and accomplishment of maternal-to-zygotic transition (MZT), which involves the timed processes of maternal mRNA clearance and zygotic genome activation (ZGA), are essential for mammalian embryogenesis. However, how energy substrates regulate maternal mRNA clearance and the underlying mechanisms have not yet been fully elucidated. Here, we found that mouse embryos were arrested at the 2-cell stage when the pyruvate level was reduced to one-fifth of the control level. Moreover, we observed that the mitochondrial contents and ROS levels were reduced. Interestingly, some maternal mRNA, including transcripts involved in the maternal factor-mediated mRNA decay (M-decay) pathway, was vastly degraded from 1-cell to 2-/4-cell embryos when cultured with control pyruvate levels, but the clearance of these transcripts was hindered when the pyruvate level was reduced. In contrast, some transcripts involved in the zygotic factor-mediated mRNA decay (Z-decay) pathway were vastly downregulated by the reduction in pyruvate. This effect was possibly due to a reduction in global transcription, as the embryos cultured with low-level pyruvate had lower transcription activity than embryos cultured with control pyruvate level. In summary, our findings demonstrate that low-level pyruvate inhibits maternal mRNA clearance, possibly by disrupting the M- and Z-decay pathways, extending our current understanding of the energy requirements of embryogenesis.
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Affiliation(s)
- Hengye Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China
| | - Ke Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China
| | - Lumin Sui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China
| | - Pan Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China
| | - Ya Du
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China
| | - Jiahao Hu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China
| | - Mengqi Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China
| | - Xiaogan Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China.
| | - Xingwei Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, 530004, China; College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, 530004, China.
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Liu B, Zhou Z, Bai Y, Yang J, Shi Y, Pu F, Xu P. Genome-Scale Phylogenetic and Population Genetic Studies Provide Insight Into Introgression and Adaptive Evolution of Takifugu Species in East Asia. Front Genet 2021; 12:625600. [PMID: 33692829 PMCID: PMC7937929 DOI: 10.3389/fgene.2021.625600] [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: 11/03/2020] [Accepted: 01/07/2021] [Indexed: 12/31/2022] Open
Abstract
As a typical marine adaptive radiation species, most Takifugu species are widely distributed in East Asian offshore, which have diversified morphological characteristics and different ecological habits. The phylogenetic relationship and population structure of the Takifugu species was complicated because of incomplete lineage sorting, widespread hybridization and introgression. Therefore, to systematically clarify the phylogenetic relationships of Takifugu genus, explore the introgression and natural hybridization between different Takifugu species, and detect the selective signatures in the adaptive evolution of diversified traits, whole-genome resequencing was used in 122 Takifugu samples from 10 species. Phylogenetic analysis showed solid sister-group relationships between Takifugu bimaculatus and Takifugu flavidus, Takifugu oblongus, and Takifugu niphobles, Takifugu rubripes, and Takifugu obscurus, Takifugu xanthoptreus, and Takifugu ocellatus. Further admixture analysis indicated the divergence of T. obscurus population and the bidirectional gene flow between T. bimaculatus and T. flavidus. Using species-specific homozygous genetic variance sites, we detected the asymmetric introgression between T. bimaculatus and T. flavidus at China East sea and southern Taiwan Strait. By genome-scale genetic diversity scanning, we detected two copies of syt1, zar1 and tgfbr1 related to the semilunar reproduction rhythm in T. niphobles, involved in memory formation, embryo maturation and female reproduction. Furthermore, we also found lots of T. niphobles specific mutations in CDS region of circadian rhythm related genes and endocrine hormone genes. For Takifugu species, our research provides reliable genetic resources and results for the phylogeny, introgression, hybridization and adaptive evolution, and could be used as a guide for the formulation of the protection and proliferation release policies.
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Affiliation(s)
- Bo Liu
- Fisheries Research Institute of Fujian, Xiamen, China
| | - Zhixiong Zhou
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Yulin Bai
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Junyi Yang
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Yue Shi
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Fei Pu
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.,Xiamen Key Laboratory of Urban Sea Ecological Conservation and Restoration, Xiamen, China
| | - Peng Xu
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
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Cheng H, Sun X, Chen F, Pan LZ, Wang GL, Yuan HJ, Chang ZL, Tan JH. Meiotic arrest with roscovitine and sexual maturity improve competence of mouse oocytes by regulating expression of competence-related genes. J Reprod Dev 2021; 67:115-122. [PMID: 33597332 PMCID: PMC8075721 DOI: 10.1262/jrd.2020-142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We have studied the mechanisms by which meiotic arrest maintenance (MAM) with roscovitine, female sexual maturity, and the surrounded nucleoli (SN) chromatin
configuration improve the competence of mouse oocytes by observing the expression of oocyte competence-related genes in non-surrounded nucleoli (NSN) and SN
oocytes from prepubertal and adult mice following maturation with or without MAM. The results demonstrated that MAM with roscovitine significantly improved the
developmental potential of adult SN and prepubertal NSN oocytes, but had no effect on that of prepubertal SN oocytes. Without MAM, while 40% of the 2-cell
embryos derived from prepubertal SN oocytes developed into 4-cell embryos, none of the 2-cell embryos derived from prepubertal NSN oocytes did, and while 42% of
the 4-cell embryos derived from adult SN oocytes developed into blastocysts, only 1% of the 4-cell embryos derived from prepubertal SN oocytes developed into
blastocysts. Furthermore, MAM with roscovitine, SN configuration, and female sexual maturity significantly increased the mRNA levels of competence-beneficial
genes and decreased those of competence-detrimental genes. In conclusion, our results suggest that MAM with roscovitine, SN chromatin configuration, and female
sexual maturity improve oocyte competence by regulating the expression of competence-related genes, suggesting that Oct4,
Stella, Mater, Zar1, Mapk8, and Bcl2 are oocyte competence-beneficial
genes, whereas Foxj2, Ship1, and Bax are competence-detrimental genes.
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Affiliation(s)
- Hao Cheng
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Xue Sun
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Fei Chen
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Liu-Zhu Pan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Guo-Liang Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Hong-Jie Yuan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Zhong-Le Chang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
| | - Jing-He Tan
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, P. R. China
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The effect of copper supplementation on in vitro maturation of porcine cumulus-oocyte complexes and subsequent developmental competence after parthenogenetic activation. Theriogenology 2021; 164:84-92. [PMID: 33567360 DOI: 10.1016/j.theriogenology.2021.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 10/18/2020] [Accepted: 01/16/2021] [Indexed: 01/01/2023]
Abstract
Copper (Cu) ions have redox activity and act as cofactors of enzymes related to respiration, radical detoxification, and iron metabolism. In this study, we aimed to examine the effects of copper (II) chloride dihydrate (CuCl2·2H2O) on porcine oocytes during in vitro maturation (IVM) and subsequent embryonic development following parthenogenetic activation (PA). Nuclear maturation, intracellular glutathione (GSH) and reactive oxygen species (ROS) levels, cumulus expansion, the mRNA expression levels of various genes, and developmental competence were analyzed. During IVM, the maturation medium was supplemented with various concentrations of Cu (0, 0.7, 1.4, and 2.8 μg/mL). After 42 h of IVM, Cu supplementation significantly increased the number of oocytes in the metaphase II stage. Further, the 1.4 μg/mL Cu group showed significantly higher intracellular GSH levels than the control group. However, Cu supplementation increased intracellular ROS levels regardless of their concentration. Additionally, the mRNA levels of Has-2, the cumulus cell expansion-related gene, were higher in all the Cu-treated groups than in the control group. The cumulus cell expansion index was higher in the 0.7 and 1.4 μg/mL Cu groups than in the other groups. In the 0.7 μg/mL Cu group, the mRNA expression levels of PCNA, Zar1, and NPM2, which are related to developmental competence, were significantly higher than those in the control group. Moreover, increased levels of Sod1 transcript, correlated with the antioxidative response, were observed in the 0.7 and 1.4 μg/mL Cu groups. The apoptosis rate in Cu-treated cumulus cells and oocytes was decreased compared to that in the corresponding control groups. Upon evaluation of subsequent embryonic development after PA, the 0.7 μg/mL Cu group showed significantly improved cleavage and blastocyst formation rate compared to the control group. In conclusion, our results suggest that Cu supplementation at appropriate concentrations in IVM medium improves porcine oocyte maturation and the subsequent embryonic potential of PA embryos by reducing oxidative stress and apoptosis.
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Paul N, Kumaresan A, Das Gupta M, Nag P, Guvvala PR, Kuntareddi C, Sharma A, Selvaraju S, Datta TK. Transcriptomic Profiling of Buffalo Spermatozoa Reveals Dysregulation of Functionally Relevant mRNAs in Low-Fertile Bulls. Front Vet Sci 2021; 7:609518. [PMID: 33506000 PMCID: PMC7829312 DOI: 10.3389/fvets.2020.609518] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/13/2020] [Indexed: 12/12/2022] Open
Abstract
Although, it is known that spermatozoa harbor a variety of RNAs that may influence embryonic development, little is understood about sperm transcriptomic differences in relation to fertility, especially in buffaloes. In the present study, we compared the differences in sperm functional attributes and transcriptomic profile between high- and low-fertile buffalo bulls. Sperm membrane and acrosomal integrity were lower (P < 0.05), while protamine deficiency and lipid peroxidation were higher (P < 0.05) in low- compared to high-fertile bulls. Transcriptomic analysis using mRNA microarray technology detected a total of 51,282 transcripts in buffalo spermatozoa, of which 4,050 transcripts were differentially expressed, and 709 transcripts were found to be significantly dysregulated (P < 0.05 and fold change >1) between high- and low-fertile bulls. Majority of the dysregulated transcripts were related to binding activity, transcription, translation, and metabolic processes with primary localization in the cell nucleus, nucleoplasm, and in cytosol. Pathways related to MAPK signaling, ribosome pathway, and oxidative phosphorylation were dysregulated in low-fertile bull spermatozoa. Using bioinformatics analysis, we observed that several genes related to sperm functional attributes were significantly downregulated in low-fertile bull spermatozoa. Validation of the results of microarray analysis was carried out using real-time qPCR expression analysis of selected genes (YBX1, ORAI3, and TFAP2C). The relative expression of these genes followed the same trend in both the techniques. Collectively, this is the first study to report the transcriptomic profile of buffalo spermatozoa and to demonstrate the dysregulation of functionally relevant transcripts in low-fertile bull spermatozoa. The results of the present study open up new avenues for understanding the etiology for poor fertility in buffalo bulls and to identify fertility biomarkers.
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Affiliation(s)
- Nilendu Paul
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Arumugam Kumaresan
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Mohua Das Gupta
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Pradeep Nag
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Pushpa Rani Guvvala
- Reproductive Physiology Laboratory, ICAR - National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Channareddi Kuntareddi
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Ankur Sharma
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Sellappan Selvaraju
- Reproductive Physiology Laboratory, ICAR - National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Tirtha Kumar Datta
- Animal Genomics Laboratory, ICAR - National Dairy Research Institute, Karnal, India
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