1
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Du H, Zeng P, Liu X, Zhang J, Huang Z. Identifying therapeutic targets for primary ovarian insufficiency through integrated genomic analyses. J Ovarian Res 2024; 17:193. [PMID: 39358799 PMCID: PMC11446024 DOI: 10.1186/s13048-024-01524-y] [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: 08/07/2024] [Accepted: 09/25/2024] [Indexed: 10/04/2024] Open
Abstract
BACKGROUND Primary ovarian insufficiency (POI) is a disorder characterized by the premature decline in ovarian function, leading to significant fertility and health impacts on women under 40. The unclear etiology of POI hinders the development of effective treatments, highlighting the need for novel therapeutic targets. METHODS This study employed genome-wide association analysis (GWAS) integrated with expression quantitative trait loci (eQTL) data from the GTEx and eQTLGen databases. Mendelian randomization (MR) and colocalization analyses were conducted to investigate causal relationships between genetic variants and POI and to identify potential therapeutic targets. RESULTS We identified 431 genes with available index cis-eQTL signals, of which four (HM13, FANCE, RAB2A, and MLLT10) were significantly associated with POI. Colocalization analysis revealed strong evidence for FANCE and RAB2A, indicating their potential as therapeutic targets. Subsequent druggability assessments identified FANCE and RAB2A as promising candidates for POI treatment, supported by their involvement in DNA repair and autophagy regulation, respectively. CONCLUSIONS Our study establishes a causal link between specific genes and POI, highlighting FANCE and RAB2A as potential drug targets. These findings provide a foundation for future research and therapeutic development, aiming to improve outcomes for women with POI. Validation in further trials is necessary to confirm these potential targets.
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Affiliation(s)
- Haihong Du
- Department of Gynecology, Meishan Women and Children's Hospital, Meishan, Sichuan, China
| | - Pengfei Zeng
- School of Acu-Mox and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xuyi Liu
- Department of Gynecology, Meishan Women and Children's Hospital, Meishan, Sichuan, China
| | - Jun Zhang
- Department of Traditional Chinese Medicine, Meishan Women and Children's Hospital, Meishan, Sichuan, China
| | - Zhonglu Huang
- Department of Gynecology, Meishan Women and Children's Hospital, Meishan, Sichuan, China.
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2
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Hara S, Shirasuna K, Iwata H. A polysaccharide gel made of gellan gum improves oocyte maturation and embryonic development in pigs. J Reprod Dev 2024; 70:303-308. [PMID: 39010241 PMCID: PMC11461523 DOI: 10.1262/jrd.2024-017] [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: 02/26/2024] [Accepted: 06/18/2024] [Indexed: 07/17/2024] Open
Abstract
Gellan gum (GG) is a soft, tractable, and natural polysaccharide substrate used for cell incubation. In this study, we examined the effects of GG on porcine oocyte maturation. Cumulus cells and oocyte complexes (COCs) were collected from slaughterhouse-derived porcine ovaries and cultured on plastic plates containing 0.05% or 0.1% GG gels. The 0.1% GG gel improved the maturation rate and quality of blastocysts, as determined by the total cell number and the rate of abnormally condensed nuclei. GG gels have antioxidant abilities and oocytes cultured on GG gels (0.05% and 0.1%) have reduced reactive oxygen species (ROS) content. Furthermore, GG gels (0.05% and 0.1%) increased F-actin formation, whereas treatment of oocytes with H2O2 reduced F-actin levels. GG gels increased the ATP content in oocytes but did not affect the mitochondrial DNA copy number or mitochondrial membrane potential. In addition, the medium cultured on 0.05% GG increased the glucose consumption of COCs. In conclusion, GG gel reduced ROS content, increased energy content, and improved subsequent embryonic development in pigs.
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Affiliation(s)
- Shunsuke Hara
- Department of Animal Science, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Koumei Shirasuna
- Department of Animal Science, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Hisataka Iwata
- Department of Animal Science, Tokyo University of Agriculture, Tokyo 156-8502, Japan
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3
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Wu C, Ding Z, Yang C, Ma C, Chen H, Zhou P, Xu Z, Xiang H. Bisphenol AP inhibits mouse oocyte maturation in vitro by disrupting cytoskeleton architecture and cell cycle processes. Toxicol Appl Pharmacol 2024; 492:117118. [PMID: 39362309 DOI: 10.1016/j.taap.2024.117118] [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: 07/22/2024] [Revised: 09/20/2024] [Accepted: 09/28/2024] [Indexed: 10/05/2024]
Abstract
Bisphenol A (BPA) is among the extensively researched environmental endocrine-disrupting chemicals (EDCs), and its utilization is restricted owing to the detrimental impacts it has on human health. Bisphenol AP (BPAP) is one of the alternatives to BPA, but the influence of BPAP on human health has not been elucidated. The objective of the current research was to determine the influence of BPAP exposure on the in vitro maturation of mouse oocytes and to explore its potential reproductive toxicity. BPAP exposure was found to inhibit polar body extrusion during mouse oocyte maturation, resulting in an arrest at the metaphase I stage of meiosis. Exposure to BPAP led to sustained activation of BubR1, preventing the degradation of both Securin and Cyclin B1. Mechanistically, BPAP exposure disrupts spindle assembly and chromosome alignment. Levels of acetylated α-tubulin were significantly elevated in BPAP-treated oocytes, reflecting decreased spindle stability. Exposure to BPAP also induced DNA damage and impaired DNA damage repair. In addition, BPAP exposure altered histone modification levels. In summary, this investigation suggests that exposure to BPAP can influence cytoskeletal assembly, interfere with cell cycle progression, induce DNA damage, alter histone modifications, and ultimately impede oocyte meiotic maturation. This investigation enhances understanding of the impact of bisphenol analogs on female gametes, underscoring that BPAP cannot be considered a reliable replacement for BPA.
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Affiliation(s)
- Caiyun Wu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei 230022, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei 230032, China
| | - Zhiming Ding
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei 230022, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei 230032, China
| | - Chen Yang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei 230022, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei 230032, China
| | - Cong Ma
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei 230022, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei 230032, China
| | - Huilei Chen
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei 230022, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei 230032, China
| | - Ping Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei 230022, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei 230032, China; Engineering Research Center of Biopreservation and Artificial Organs, Ministry of Education, No.81 Meishan Road, Hefei 230032, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No.81 Meishan Road, Hefei 230032, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Anhui Provincial Institute of Translational Medicine, No.81 Meishan Road, Hefei 230032, China.
| | - Zuying Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei 230022, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei 230032, China; Engineering Research Center of Biopreservation and Artificial Organs, Ministry of Education, No.81 Meishan Road, Hefei 230032, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No.81 Meishan Road, Hefei 230032, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Anhui Provincial Institute of Translational Medicine, No.81 Meishan Road, Hefei 230032, China.
| | - Huifen Xiang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei 230022, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei 230032, China; Engineering Research Center of Biopreservation and Artificial Organs, Ministry of Education, No.81 Meishan Road, Hefei 230032, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No.81 Meishan Road, Hefei 230032, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No.81 Meishan Road, Hefei 230032, China; Anhui Provincial Institute of Translational Medicine, No.81 Meishan Road, Hefei 230032, China.
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4
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Dhori X, Gioiosa S, Gonfloni S. An integrated analysis of multiple datasets reveals novel gene signatures in human granulosa cells. Sci Data 2024; 11:972. [PMID: 39242561 PMCID: PMC11379948 DOI: 10.1038/s41597-024-03715-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 08/01/2024] [Indexed: 09/09/2024] Open
Abstract
Granulosa cells (GCs) play crucial roles in oocyte maturation. Through gap junctions and extracellular vesicles, they mediate the exchange of molecules such as microRNAs and messenger RNAs. Different ovarian cell types exhibit unique gene expression profiles, reflecting their specialized functions and stages. By combining RNA-seq data from various cell types forming the follicle, we aimed at capturing a wide range of expression patterns, offering insights into the functional diversity and complexity of the transcriptome regulation across GCs. Herein, we performed an integrated bioinformatics analysis of RNA sequencing datasets present in public databases, with a unique and standardized workflow., By combining the data from different studies, we successfully increased the robustness and reliability of our findings and discovered novel genes, miRNAs, and signaling pathways associated with GCs function and oocyte maturation. Moreover, our results provide a valuable resource for further wet-lab research on GCs biology and their impact on oocyte development and competence.
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Affiliation(s)
- Xhulio Dhori
- CINECA, Super Computing Applications and Innovation Department, Via dei Tizii 6B, 000185, Roma, Italy
- Department of Biology, University of Roma, via della Ricerca Scientifica 00133, Roma, Italy
| | - Silvia Gioiosa
- CINECA, Super Computing Applications and Innovation Department, Via dei Tizii 6B, 000185, Roma, Italy.
| | - Stefania Gonfloni
- Department of Biology, University of Roma, via della Ricerca Scientifica 00133, Roma, Italy.
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5
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Yang Y, Xu B, Lu W. Phosphorylated ERM regulates meiotic maturation in mouse oocytes. Biochem Biophys Res Commun 2024; 734:150602. [PMID: 39243677 DOI: 10.1016/j.bbrc.2024.150602] [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: 07/10/2024] [Revised: 08/18/2024] [Accepted: 08/23/2024] [Indexed: 09/09/2024]
Abstract
The cytoskeleton of mammal oocytes provides structural support to the plasma membrane and contributes to critical cellular dynamic processes such as nuclear positioning, germinal vesicle breakdown, spindle orientation, chromosome segregation, polar body extrusion, and transmembrane signaling pathways. The ERM family (ezrin, radixin and moesin) well known as membrane-cytoskeletal crosslinkers play a crucial role in organizing plasma membrane domains through their capacity to interact with transmembrane proteins and the underlying cytoskeleton. Recent works mainly focused on the structural analysis of the ERM family members and their binding partners, together with multiple functions in cell mitosis, have significantly advanced our understanding of the importance of membrane-cytoskeletal interactions. In the present study, we documented that p-ERM was expressed and localized at cortical and nucleus during mouse oocyte meiosis. p-ERM and microfilaments were colocalized from GV to MII during mouse oocyte maturation. After being treated with cytochalasin B (CB), the F-actin was disassembled. Meanwhile, p-ERM exhibited a diffuse cytoplasmic distribution and no special staining was detected in either the oocyte membrane or condensed chromosomes. p-ERM depletion by trim-away caused the meiotic procedure arrest with a significantly lower polar body extrusion rate. Collectively, these data demonstrate that the subcellular distribution of p-ERM is correlated with microfilaments. Meanwhile, the p-ERM contributes to the first polar extrusion but does not regulate the microfilament assembly.
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Affiliation(s)
- Yifeng Yang
- Jilin Provincial International Joint Research Center of Animal Breeding & Reproduction Technology, Jilin Agricultural University, Changchun, 130118, China; Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Jilin, Changchun, 130118, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China; Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun, 130112, China
| | - Baozeng Xu
- Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun, 130112, China.
| | - Wenfa Lu
- Jilin Provincial International Joint Research Center of Animal Breeding & Reproduction Technology, Jilin Agricultural University, Changchun, 130118, China; Key Laboratory of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Jilin, Changchun, 130118, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China.
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6
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Qin X, Du J, He R, Li Y, Li H, Liang X. Potential mechanisms and therapeutic strategies for LPS-associated female fertility decline. J Assist Reprod Genet 2024:10.1007/s10815-024-03226-2. [PMID: 39167249 DOI: 10.1007/s10815-024-03226-2] [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: 05/08/2024] [Accepted: 08/07/2024] [Indexed: 08/23/2024] Open
Abstract
As a major component of the outer membrane of Gram-negative bacteria, lipopolysaccharide (LPS) can be recognized by toll-like receptors (TLRs) and induce inflammation through MyD88 or the TIR domain-containing adapter-inducing interferon-β (TRIF) pathway. Previous studies have found that LPS-associated inflammatory/immune challenges were associated with ovarian dysfunction and reduced female fertility. However, the etiology and pathogenesis of female fertility decline associated with LPS are currently complex and multifaceted. In this review, PubMed was used to search for references on LPS and fertility decline so as to elucidate the potential mechanisms of LPS-associated female fertility decline and summarize therapeutic strategies that may improve LPS-associated fertility decline.
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Affiliation(s)
- Xue Qin
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, China
| | - Junhong Du
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, China
| | - Ruifen He
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, China
| | - Yaxi Li
- The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, China
| | - Hongli Li
- Department of Obstetrics and Gynecology, Key Laboratory for Gynecologic Oncology Gansu Province, The First Hospital of Lanzhou University, No.1, Donggangxi Rd, Chengguan District, Lanzhou, 730000, China
| | - Xiaolei Liang
- Department of Obstetrics and Gynecology, Key Laboratory for Gynecologic Oncology Gansu Province, The First Hospital of Lanzhou University, No.1, Donggangxi Rd, Chengguan District, Lanzhou, 730000, China.
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7
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Chang H, Huang C, Cheng S, Li J, Wang X. Fbxo28 is essential for spindle migration and morphology during mouse oocyte meiosis I. Int J Biol Macromol 2024; 275:133232. [PMID: 38960234 DOI: 10.1016/j.ijbiomac.2024.133232] [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: 04/23/2024] [Revised: 05/28/2024] [Accepted: 06/15/2024] [Indexed: 07/05/2024]
Abstract
Spindle migration and assembly regulates asymmetric oocyte division, which is essential for fertility. Fbxo28, as a member of SCF (Skp1-Cul1-F-box) ubiquitin E3 ligases complex, is specifically expressed in oocytes. However, little is known about the functions of Fbxo28 in spindle assembly and migration during oocyte meiosis I. In present study, microinjection with morpholino oligonucleotides and exogenous mRNA for knockdown and rescue experiments, and immunofluorescence staining, western blot, timelapse confocal microscopy and chromosome spreading were utilized to explore the roles of Fbxo28 in asymmetric division during meiotic maturation. Our data suggested that Fbxo28 mainly localized at chromosomes and acentriolar microtubule-organizing centers (aMTOCs). Depletion of Fbxo28 did not affect polar body extrusion but caused defects in spindle morphology and migration, indicative of the failure of asymmetric division. Moreover, absence of Fbxo28 disrupted both cortical and cytoplasmic actin assembly and decreased the expression of ARPC2 and ARP3. These defects could be rescued by exogenous Fbxo28-myc mRNA supplement. Collectively, this study demonstrated that Fbxo28 affects spindle morphology and actin-based spindle migration during mouse oocyte meiotic maturation.
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Affiliation(s)
- Haoya Chang
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, Xi'an 710038, China; Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, China
| | - Chenyang Huang
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Siyu Cheng
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jian Li
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, China.
| | - Xiaohong Wang
- Department of Obstetrics and Gynecology, Tangdu Hospital, Air Force Medical University, Xi'an 710038, China.
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8
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Kunnath AN, Parker SK, Crasta DN, Kunhiraman JP, Madhvacharya VV, Kumari S, Nayak G, Vani Lakshmi R, Modi PK, Keshava Prasad TS, Kumar A, Khandelwal A, Ghani NK, Kabekkodu SP, Adiga SK, Kalthur G. Metformin augments major cytoplasmic organization except for spindle organization in oocytes cultured under hyperglycemic and hyperlipidemic conditions: An in vitro study. Toxicol Appl Pharmacol 2024; 490:117039. [PMID: 39019093 DOI: 10.1016/j.taap.2024.117039] [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: 03/23/2024] [Revised: 07/12/2024] [Accepted: 07/12/2024] [Indexed: 07/19/2024]
Abstract
The present study aimed to investigate the role of antidiabetic drug metformin on the cytoplasmic organization of oocytes. Germinal vesicle (GV) stage oocytes were collected from adult female Swiss albino mice and subjected to in vitro maturation (IVM) in various experimental groups- control, vehicle control (0.3% ethanol), metformin (50 μg/mL), high glucose and high lipid (HGHL, 10 mM glucose; 150 μM palmitic acid; 75 μM stearic acid and 200 μM oleic acid in ethanol), and HGHL supplemented with metformin. The metaphase II (MII) oocytes were analyzed for lipid accumulation, mitochondrial and endoplasmic reticulum (ER) distribution pattern, oxidative and ER stress, actin filament organization, cortical granule distribution pattern, spindle organization and chromosome alignment. An early polar body extrusion was observed in the HGHL group. However, the maturation rate at 24 h did not differ significantly among the experimental groups compared to the control. The HGHL conditions exhibited significantly higher levels of oxidative stress, ER stress, poor actin filament organization, increased lipid accumulation, altered mitochondrial distribution, spindle abnormalities, and chromosome misalignment compared to the control. Except for spindle organization, supplementation of metformin to the HGHL conditions improved all the parameters (non-significant for ER and actin distribution pattern). These results show that metformin exposure in the culture media helped to improve the hyperglycemia and hyperlipidemia-induced cytoplasmic anomalies except for spindle organization. Given the crucial role of spindle organization in proper chromosome segregation during oocyte maturation and meiotic resumption, the implications of metformin's limitations in this aspect warrant careful evaluation and further investigation.
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Affiliation(s)
- Amrutha Nedumbrakkad Kunnath
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Shravani Kanakadas Parker
- Center of Excellence in Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Daphne Norma Crasta
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Jyolsna Ponnaratta Kunhiraman
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Vanishree Vasave Madhvacharya
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Sandhya Kumari
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Guruprasad Nayak
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - R Vani Lakshmi
- Department of Data Science, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal 576104, India
| | - Prashanth Kumar Modi
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Center, University Road, Mangalore 575018, India
| | | | - Anujith Kumar
- Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education, Allasandra, Yelahanka, Bangalore 560065, India
| | - Ayush Khandelwal
- Department of Cell and Molecular Biology, Manipal School of Life sciences, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Nadeem Khan Ghani
- Department of Cell and Molecular Biology, Manipal School of Life sciences, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life sciences, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Satish Kumar Adiga
- Center of Excellence in Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Guruprasad Kalthur
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India.
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9
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Bomba-Warczak EK, Velez KM, Zhou LT, Guillermier C, Edassery S, Steinhauser M, Savas JN, Duncan FE. Exceptional longevity of mammalian ovarian and oocyte macromolecules throughout the reproductive lifespan. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.18.562852. [PMID: 37905022 PMCID: PMC10614913 DOI: 10.1101/2023.10.18.562852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The mechanisms contributing to age-related deterioration of the female reproductive system are complex, but aberrant protein homeostasis is a major contributor. We elucidated the exceptionally stable proteins, structures, and macromolecules that persist in mammalian ovaries and gametes across the reproductive lifespan. Ovaries exhibit localized structural and cell-type specific enrichment of stable macromolecules in both the follicular and extrafollicular environments. Moreover, both ovaries and oocytes harbor a panel of exceptionally long-lived proteins, including cytoskeletal components, mitochondrial, and oocyte-derived proteins. The exceptional persistence of these long-lived molecules might play a critical role in both lifelong maintenance and age-dependent deterioration of reproductive tissues.
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Affiliation(s)
- Ewa K. Bomba-Warczak
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Karen M. Velez
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Luhan T Zhou
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | | | - Seby Edassery
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Matthew Steinhauser
- Department of Medicine, Division of Genetics, Brigham and Women’s Hospital, Boston, MA
| | - Jeffrey N. Savas
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Francesca E. Duncan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL
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10
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Ma C, Zhang X, Zhang Y, Ruan H, Xu X, Wu C, Ding Z, Cao Y. Sirtuin 5-driven meiotic spindle assembly and actin-based migration in mouse oocyte meiosis. Heliyon 2024; 10:e32466. [PMID: 38933958 PMCID: PMC11201115 DOI: 10.1016/j.heliyon.2024.e32466] [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] [Received: 01/25/2024] [Revised: 05/21/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Sirtuin 5 (Sirt5), a member of the Sirtuin family, is involved in various intracellular biological processes. However, the function of Sirt5 in oocyte maturation has not been clearly elucidated. In this study, we observed that Sirt5 was persistently expressed during the meiotic division of mouse oocytes, with a notable decline in expression in aging oocytes. Sirt5 inhibition led to the failure of the first polar body extrusion and induced cell cycle arrest, indicative of unsuccessful oocyte maturation. Furthermore, Sirt5 inhibition was associated with the extrusion of abnormally large polar bodies, suggesting disrupted asymmetric oocyte division. Mechanistically, the inhibition of Sirt5 resulted in aberrant spindle assembly and disordered chromosome alignment in oocytes. Moreover, Sirt5 inhibition caused the spindle to be centrally located in the oocyte without migrating to the cortical region, consequently preventing the formation of the actin cap. Further investigation revealed that Sirt5 inhibition notably diminished the expression of phosphorylated cofilin and profilin1, while increasing cytoplasmic F-actin levels. These findings suggest that Sirt5 inhibition during oocyte maturation adversely affects spindle assembly and chromosome alignment and disrupts actin dynamics impairing spindle migration and contributing to the failure of symmetric oocyte division and maturation.
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Affiliation(s)
- Cong Ma
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei, 230032, China
| | - Xueke Zhang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei, 230032, China
| | - Yingying Zhang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, 230022, China
| | - Hongzhen Ruan
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, 230022, China
| | - Xiaofeng Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, 230022, China
| | - Caiyun Wu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, 230022, China
| | - Zhiming Ding
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei, 230032, China
| | - Yunxia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Hefei, 230022, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No.81 Meishan Road, Hefei, 230032, China
- Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, No.81 Meishan Road, Hefei, 230032, China
- Engineering Research Center of Biopreservation and Artificial Organs, Ministry of Education, No.81 Meishan Road, Hefei, 230032, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No.81 Meishan Road, Hefei, 230032, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No.81 Meishan Road, Hefei, 230032, China
- Anhui Provincial Institute of Translational Medicine, No.81 Meishan Road, Hefei, 230032, China
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11
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Liao H, Tian W, Yao W, Guo Q, Wang Y, Li J, Qing D, Li Y, Deng T. DBP Exposure Affects Oocyte Fertilization Via Extracellular Vesicles-Derived miR-116-5p in Ovarian Granulosa Cells Through Downregulating FOXO3a Expression. Reprod Sci 2024:10.1007/s43032-024-01559-y. [PMID: 38858331 DOI: 10.1007/s43032-024-01559-y] [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: 01/16/2024] [Accepted: 04/12/2024] [Indexed: 06/12/2024]
Abstract
Mono-butyl phthalate (MBP), the metabolite of dibutyl phthalate (DBP), is the most abundant phthalate metabolite found in Chinese women. Extracellular vesicles (EVs) are nanoscale lipid bilayer particles produced by extensive kinds of cells, serving a key role in intercellular communication. Extracellular vesicle miRNAs (EV-miRNAs) in follicular fluid (FF) have been evidenced to be associated with female reproductive health. The objective of this study was to investigate the associations of EV-miRNAs expressed profile with DBP exposure in FF of female participants and expose its potential mechanism in impaired oocyte development. Based on participants' FF MBP concentrations and fertilization status, we compared the miRNA expression between the FF-EVs of group A (high DBP exposure and impaired fertilization) and group B (low DBP exposure and normal fertilization). Compared with group B, miR-1246, miR-3679-5p, miR-423-5p, miR-5585-3p, miR-116-5p, miR-172-5p were upregulated, while miR-34b-3p was downregulated in group A. Target genes of the differently expressed miRNAs were predicted, and the functional analysis was performed. Furthermore, we exposed human ovarian granulosa tumor cell line (KGN) to MBP (4ug/L) to isolate the EVs from the culture medium and validated the expression levels of different miRNAs. We found that MBP exposure was significantly associated with increased levels of miR-116-5p (P = 0.01). In addition, we demonstrated that the most different miRNA, miR-116-5p regulated oocyte fertilization by inhibiting FOXO3a. Our findings suggested that EV-miRNAs in the FF might mediate MBP toxicity in oocytes.
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Affiliation(s)
- Hongmei Liao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wenqu Tian
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wen Yao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Qingchun Guo
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yi Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Juan Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Danyu Qing
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yufeng Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Taoran Deng
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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12
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Pan MH, Zhang KH, Wu SL, Pan ZN, Sun MH, Li XH, Ju JQ, Luo SM, Ou XH, Sun SC. FMNL2 regulates actin for endoplasmic reticulum and mitochondria distribution in oocyte meiosis. eLife 2024; 12:RP92732. [PMID: 38747713 PMCID: PMC11095938 DOI: 10.7554/elife.92732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024] Open
Abstract
During mammalian oocyte meiosis, spindle migration and asymmetric cytokinesis are unique steps for the successful polar body extrusion. The asymmetry defects of oocytes will lead to the failure of fertilization and embryo implantation. In present study, we reported that an actin nucleating factor Formin-like 2 (FMNL2) played critical roles in the regulation of spindle migration and organelle distribution in mouse and porcine oocytes. Our results showed that FMNL2 mainly localized at the oocyte cortex and periphery of spindle. Depletion of FMNL2 led to the failure of polar body extrusion and large polar bodies in oocytes. Live-cell imaging revealed that the spindle failed to migrate to the oocyte cortex, which caused polar body formation defects, and this might be due to the decreased polymerization of cytoplasmic actin by FMNL2 depletion in the oocytes of both mice and pigs. Furthermore, mass spectrometry analysis indicated that FMNL2 was associated with mitochondria and endoplasmic reticulum (ER)-related proteins, and FMNL2 depletion disrupted the function and distribution of mitochondria and ER, showing with decreased mitochondrial membrane potential and the occurrence of ER stress. Microinjecting Fmnl2-EGFP mRNA into FMNL2-depleted oocytes significantly rescued these defects. Thus, our results indicate that FMNL2 is essential for the actin assembly, which further involves into meiotic spindle migration and ER/mitochondria functions in mammalian oocytes.
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Affiliation(s)
- Meng-Hao Pan
- College of Animal Science and Technology, Nanjing Agricultural UniversityNanjingChina
- College of Veterinary Medicine, Northwest A&F UniversityShaanxiChina
| | - Kun-Huan Zhang
- College of Animal Science and Technology, Nanjing Agricultural UniversityNanjingChina
| | - Si-Le Wu
- College of Animal Science and Technology, Nanjing Agricultural UniversityNanjingChina
| | - Zhen-Nan Pan
- College of Animal Science and Technology, Nanjing Agricultural UniversityNanjingChina
| | - Ming-Hong Sun
- College of Animal Science and Technology, Nanjing Agricultural UniversityNanjingChina
| | - Xiao-Han Li
- College of Animal Science and Technology, Nanjing Agricultural UniversityNanjingChina
| | - Jia-Qian Ju
- College of Animal Science and Technology, Nanjing Agricultural UniversityNanjingChina
| | - Shi-Ming Luo
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General HospitalGuangzhouChina
| | - Xiang-Hong Ou
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General HospitalGuangzhouChina
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural UniversityNanjingChina
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Tian Q, Yin Y, Tian Y, Wang Y, Wang Y, Fukunaga R, Fujii T, Liao A, Li L, Zhang W, He X, Xiang W, Zhou L. Chromatin Modifier EP400 Regulates Oocyte Quality and Zygotic Genome Activation in Mice. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308018. [PMID: 38493496 PMCID: PMC11132066 DOI: 10.1002/advs.202308018] [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: 10/23/2023] [Revised: 03/05/2024] [Indexed: 03/19/2024]
Abstract
Epigenetic modifiers that accumulate in oocytes, play a crucial role in steering the developmental program of cleavage embryos and initiating life. However, the identification of key maternal epigenetic regulators remains elusive. In the findings, the essential role of maternal Ep400, a chaperone for H3.3, in oocyte quality and early embryo development in mice is highlighted. Depletion of Ep400 in oocytes resulted in a decline in oocyte quality and abnormalities in fertilization. Preimplantation embryos lacking maternal Ep400 exhibited reduced major zygotic genome activation (ZGA) and experienced developmental arrest at the 2-to-4-cell stage. The study shows that EP400 forms protein complex with NFYA, occupies promoters of major ZGA genes, modulates H3.3 distribution between euchromatin and heterochromatin, promotes transcription elongation, activates the expression of genes regulating mitochondrial functions, and facilitates the expression of rate-limiting enzymes of the TCA cycle. This intricate process driven by Ep400 ensures the proper execution of the developmental program, emphasizing its critical role in maternal-to-embryonic transition.
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Affiliation(s)
- Qing Tian
- Institute of Reproductive HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
- Department of Gynecology and ObstetricsZhongnan Hospital of Wuhan UniversityWuhanHubei430071China
| | - Ying Yin
- Department of PhysiologySchool of Basic Medicine, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
- Center for Genomics and Proteomics ResearchSchool of Basic Medicine, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
- Hubei Key Laboratory of Drug Target Research and Pharmacodynamic EvaluationHuazhong University of Science and TechnologyWuhanHubei430030China
| | - Yu Tian
- Institute of Reproductive HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
| | - Yufan Wang
- Institute of Reproductive HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
| | - Yong‐feng Wang
- Institute of Reproductive HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
| | - Rikiro Fukunaga
- Department of BiochemistryOsaka Medical and Pharmaceutical UniversityTakatsukiOsaka569‐1094Japan
| | - Toshihiro Fujii
- Department of BiochemistryOsaka Medical and Pharmaceutical UniversityTakatsukiOsaka569‐1094Japan
| | - Ai‐hua Liao
- Institute of Reproductive HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
| | - Lei Li
- State Key Laboratory of Stem Cell and Reproductive BiologyInstitute of ZoologyChinese Academy of SciencesBeijing100101China
| | - Wei Zhang
- Department of Gynecology and ObstetricsZhongnan Hospital of Wuhan UniversityWuhanHubei430071China
| | - Ximiao He
- Department of PhysiologySchool of Basic Medicine, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
- Center for Genomics and Proteomics ResearchSchool of Basic Medicine, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
- Hubei Key Laboratory of Drug Target Research and Pharmacodynamic EvaluationHuazhong University of Science and TechnologyWuhanHubei430030China
| | - Wenpei Xiang
- Institute of Reproductive HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
| | - Li‐quan Zhou
- Institute of Reproductive HealthTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
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14
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Hu LL, Liao MH, Liu YX, Xing CH, Nong LL, Yang FL, Sun SC. Loss of AMPK activity induces organelle dysfunction and oxidative stress during oocyte aging. Biol Direct 2024; 19:29. [PMID: 38654312 PMCID: PMC11036640 DOI: 10.1186/s13062-024-00471-4] [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: 12/29/2023] [Accepted: 04/02/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Oocyte quality is critical for the mammalian reproduction due to its necessity on fertilization and early development. During aging, the declined oocytes showing with organelle dysfunction and oxidative stress lead to infertility. AMP-activated protein kinase (AMPK) is a serine/threonine protein kinase which is important for energy homeostasis for metabolism. Little is known about the potential relationship between AMPK with oocyte aging. RESULTS In present study we reported that AMPK was related with low quality of oocytes under post ovulatory aging and the potential mechanism. We showed the altered AMPK level during aging and inhibition of AMPK activity induced mouse oocyte maturation defect. Further analysis indicated that similar with its upstream regulator PKD1, AMPK could reduce ROS level to avoid oxidative stress in oocytes, and this might be due to its regulation on mitochondria function, since loss of AMPK activity induced abnormal distribution, reduced ATP production and mtDNA copy number of mitochondria. Besides, we also found that the ER and Golgi apparatus distribution was aberrant after AMPK inhibition, and enhanced lysosome function was also observed. CONCLUSIONS Taken together, these data indicated that AMPK is important for the organelle function to reduce oxidative stress during oocyte meiotic maturation.
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Affiliation(s)
- Lin-Lin Hu
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Mei-Hua Liao
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Ya-Xi Liu
- College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Chun-Hua Xing
- College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Lan-Lan Nong
- Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi, Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Feng-Lian Yang
- Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, 533000, Baise, Guangxi, China.
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China.
- Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, 533000, Baise, Guangxi, China.
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15
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Liu JC, Pan ZN, Ju JQ, Zou YJ, Pan MH, Wang Y, Wu X, Sun SC. Kinesin KIF3A regulates meiotic progression and spindle assembly in oocyte meiosis. Cell Mol Life Sci 2024; 81:168. [PMID: 38587639 PMCID: PMC11001723 DOI: 10.1007/s00018-024-05213-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 04/09/2024]
Abstract
Kinesin family member 3A (KIF3A) is a microtubule-oriented motor protein that belongs to the kinesin-2 family for regulating intracellular transport and microtubule movement. In this study, we characterized the critical roles of KIF3A during mouse oocyte meiosis. We found that KIF3A associated with microtubules during meiosis and depletion of KIF3A resulted in oocyte maturation defects. LC-MS data indicated that KIF3A associated with cell cycle regulation, cytoskeleton, mitochondrial function and intracellular transport-related molecules. Depletion of KIF3A activated the spindle assembly checkpoint, leading to metaphase I arrest of the first meiosis. In addition, KIF3A depletion caused aberrant spindle pole organization based on its association with KIFC1 to regulate expression and polar localization of NuMA and γ-tubulin; and KIF3A knockdown also reduced microtubule stability due to the altered microtubule deacetylation by histone deacetylase 6 (HDAC6). Exogenous Kif3a mRNA supplementation rescued the maturation defects caused by KIF3A depletion. Moreover, KIF3A was also essential for the distribution and function of mitochondria, Golgi apparatus and endoplasmic reticulum in oocytes. Conditional knockout of epithelial splicing regulatory protein 1 (ESRP1) disrupted the expression and localization of KIF3A in oocytes. Overall, our results suggest that KIF3A regulates cell cycle progression, spindle assembly and organelle distribution during mouse oocyte meiosis.
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Affiliation(s)
- Jing-Cai Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhen-Nan Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jia-Qian Ju
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yuan-Jing Zou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Meng-Hao Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yue Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Xin Wu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.
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16
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Buss JH, Begnini KR, Lenz G. The contribution of asymmetric cell division to phenotypic heterogeneity in cancer. J Cell Sci 2024; 137:jcs261400. [PMID: 38334041 DOI: 10.1242/jcs.261400] [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] [Indexed: 02/10/2024] Open
Abstract
Cells have evolved intricate mechanisms for dividing their contents in the most symmetric way during mitosis. However, a small proportion of cell divisions results in asymmetric segregation of cellular components, which leads to differences in the characteristics of daughter cells. Although the classical function of asymmetric cell division (ACD) in the regulation of pluripotency is the generation of one differentiated daughter cell and one self-renewing stem cell, recent evidence suggests that ACD plays a role in other physiological processes. In cancer, tumor heterogeneity can result from the asymmetric segregation of genetic material and other cellular components, resulting in cell-to-cell differences in fitness and response to therapy. Defining the contribution of ACD in generating differences in key features relevant to cancer biology is crucial to advancing our understanding of the causes of tumor heterogeneity and developing strategies to mitigate or counteract it. In this Review, we delve into the occurrence of asymmetric mitosis in cancer cells and consider how ACD contributes to the variability of several phenotypes. By synthesizing the current literature, we explore the molecular mechanisms underlying ACD, the implications of phenotypic heterogeneity in cancer, and the complex interplay between these two phenomena.
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Affiliation(s)
- Julieti Huch Buss
- Departamento de Biofísica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 91509-900, Brazil
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 91509-900, Brazil
| | - Karine Rech Begnini
- Departamento de Biofísica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 91509-900, Brazil
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 91509-900, Brazil
- Instituto do Cérebro (INSCER), Pontifícia Universidade Católica RS (PUCRS), Porto Alegre, RS 90610-000, Brazil
| | - Guido Lenz
- Departamento de Biofísica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 91509-900, Brazil
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 91509-900, Brazil
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17
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Sventitskaya MA, Ogneva IV. Reorganization of the mouse oocyte' cytoskeleton after cultivation under simulated weightlessness. LIFE SCIENCES IN SPACE RESEARCH 2024; 40:8-18. [PMID: 38245351 DOI: 10.1016/j.lssr.2023.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/18/2023] [Accepted: 11/01/2023] [Indexed: 01/22/2024]
Abstract
Female germ cells provide the structural basis for the development of a new organism, while the main molecular mechanisms of the impact of weightlessness on the cell remain unknown. The aim of this work was to determine the relative content and distribution of the main proteins of microtubules and microfilaments, to assess the relative RNA content of genes in mouse oocytes after short-term exposure to simulated microgravity, and to determine the potential for embryo development up to the 3-cell stage. Before starting the study, BALB/c mice were divided into two groups. One group received water and standard food without any modifications. Before exposure to simulated microgravity, the oocytes of these animals were randomly divided into two groups - c and µg. The second group of animals additionally received essential phospholipids containing at least 80% phosphatidylcholines, per os for 6 weeks before the start of the experiment at a dosage of 350 mg/kg of the animal's body to modify the lipid composition of the oocyte membrane. The obtained oocytes of these animals were also randomly divided into two groups - ce and µge. To determine the protein distribution and its relative content, immunofluorescence analysis was performed, and the RNA content of genes was assessed using real-time PCR with reverse transcription. After cultivation under simulated microgravity, beta-actin and acetylated alpha-tubulin are redistributed from the cortical layer to the central part of the oocyte, and the relative content of acetylated alpha-tubulin and tubulin isoforms decreases. At the same time, the mRNA content of most genes encoding cytoskeletal proteins was significantly higher in comparison with the control level. The use of essential phospholipids led to a decrease in the content of cellular cholesterol in the oocyte and leveled changes in the content and redistribution of acetylated alpha-tubulin and beta-actin after cultivation under simulated microgravity. In addition, after in vitro fertilization and further cultivation under simulated weightlessness, we observed a decrease in the number of embryos that passed the stage of the 2-cell embryo, but while taking essential phospholipids, the number of embryos that reached the 3-cell stage did not differ from the control group. The results obtained show changes in the content and redistribution of cytoskeletal proteins in the oocyte, which may be involved in the process of pronucleus migration, the formation of the fission spindle and the contractile ring under simulated weightlessness, which may be important for normal fertilization and cleavage of the future embryo.
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Affiliation(s)
- Maria A Sventitskaya
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoeshosse, Moscow, 123007, Russia; I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya St., Moscow, 119991, Russia.
| | - Irina V Ogneva
- Cell Biophysics Laboratory, State Scientific Center of the Russian Federation Institute of Biomedical Problems of the Russian Academy of Sciences, 76a, Khoroshevskoyoeshosse, Moscow, 123007, Russia; I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya St., Moscow, 119991, Russia
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18
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Rajabi-Toustani R, Hu Q, Wang S, Qiao H. How Do Environmental Toxicants Affect Oocyte Maturation Via Oxidative Stress? ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2024; 238:69-95. [PMID: 39030355 DOI: 10.1007/978-3-031-55163-5_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
In mammals, oogenesis initiates before birth and pauses at the dictyate stage of meiotic prophase I until luteinizing hormone (LH) surges to resume meiosis. Oocyte maturation refers to the resumption of meiosis that directs oocytes to advance from prophase I to metaphase II of meiosis. This process is carefully modulated to ensure a normal ovulation and successful fertilization. By generating excessive amounts of oxidative stress, environmental toxicants can disrupt the oocyte maturation. In this review, we categorized these environmental toxicants that induce mitochondrial dysfunction and abnormal spindle formation. Further, we discussed the underlying mechanisms that hinder oocyte maturation, including mitochondrial function, spindle formation, and DNA damage response.
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Affiliation(s)
- Reza Rajabi-Toustani
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Qinan Hu
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Shuangqi Wang
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Huanyu Qiao
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
- Carl R. Woese Institute for Genomic Biology, Urbana, IL, USA.
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19
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Ezoe K, Takahashi T, Miki T, Kato K. Developmental perturbation in human embryos: Clinical and biological significance learned from time-lapse images. Reprod Med Biol 2024; 23:e12593. [PMID: 38983691 PMCID: PMC11232294 DOI: 10.1002/rmb2.12593] [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: 03/05/2024] [Revised: 05/30/2024] [Accepted: 06/07/2024] [Indexed: 07/11/2024] Open
Abstract
Background Time-lapse technology (TLT) has gained widespread adoption worldwide. In addition to facilitating the undisturbed culture of embryos, TLT offers the unique capability of continuously monitoring embryos to detect spatiotemporal changes. Although these observed phenomena play a role in optimal embryo selection/deselection, the clinical advantages of introducing TLT remain unclear. However, manual annotation of embryo perturbation could facilitate a comprehensive assessment of developmental competence. This process requires a thorough understanding of embryo observation and the biological significance associated with developmental dogma and variation. This review elucidates the typical behavior and variation of each phenomenon, exploring their clinical significance and research perspectives. Methods The MEDLINE database was searched using PubMed for peer-reviewed English-language original articles concerning human embryo development. Main findings TLT allows the observation of consecutive changes in embryo morphology, serving as potential biomarkers for embryo assessment. In assisted reproductive technology laboratories, several phenomena have not revealed their mechanism, posing difficulties such as fertilization deficiency and morula arrest. Conclusion A profound understanding of the biological mechanisms and significance of each phenomenon is crucial. Further collaborative efforts between the clinical and molecular fields following translational studies are required to advance embryonic outcomes and assessment.
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Jiao L, Hu CX, Zhang Y, Zhang YX, Cai WW, Pan WL, Sun SC, Zhang Y. SIRT3 Regulates Levels of Deacetylated SOD2 to Prevent Oxidative Stress and Mitochondrial Dysfunction During Oocyte Maturation in Pigs. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2023; 29:2149-2160. [PMID: 37967302 DOI: 10.1093/micmic/ozad127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/12/2023] [Accepted: 10/23/2023] [Indexed: 11/17/2023]
Abstract
Mammalian oocyte maturation relies on mitochondrial ATP production, but this can lead to damaging reactive oxygen species (ROS). SIRT3, a mitochondrial sirtuin, plays a critical role in regulating mitochondrial redox balance in mouse oocytes under stress; however, its specific roles in porcine oocytes remain unclear. In this study, we utilized the SIRT3 inhibitor 3-TYP to investigate SIRT3's importance in porcine oocyte maturation. Our findings revealed that SIRT3 is expressed in porcine oocytes and its inhibition leads to maturation failure. This was evident through reduced polar body extrusion, arrested cell cycle, as well as disrupted spindle organization and actin distribution. Furthermore, SIRT3 inhibition resulted in a decrease in mitochondrial DNA copy numbers, disruption of mitochondrial membrane potential, and reduced ATP levels, all indicating impaired mitochondrial function in porcine oocytes. Additionally, the primary source of damaged mitochondria was associated with decreased levels of deacetylated superoxide dismutase 2 (SOD2) after SIRT3 inhibition, which led to ROS accumulation and oxidative stress-induced apoptosis. Taken together, our results suggest that SIRT3 regulates the levels of deacetylated SOD2 to maintain redox balance and preserve mitochondrial function during porcine oocyte maturation, with potential implications for improving pig reproduction.
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Affiliation(s)
- Le Jiao
- College of Animal Science and Technology, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, China
| | - Chen-Xi Hu
- College of Animal Science and Technology, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, China
| | - Yue Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, China
| | - Ying-Xin Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, China
| | - Wen-Wu Cai
- College of Animal Science and Technology, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, China
| | - Wen-Lin Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, China
| | - Yu Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Weigang No. 1, Nanjing 210095, China
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21
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Yang Y, Zhao C, Chen B, Yu X, Zhou Y, Ni D, Zhang X, Zhang J, Ling X, Zhang Z, Huo R. Follicular fluid C3a-peptide promotes oocyte maturation through F-actin aggregation. BMC Biol 2023; 21:285. [PMID: 38066646 PMCID: PMC10709936 DOI: 10.1186/s12915-023-01760-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 11/03/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Immature cumulus-oocyte complexes are retrieved to obtain mature oocytes by in vitro maturation (IVM), a laboratory tool in reproductive medicine to obtain mature oocytes. Unfortunately, the efficiency of IVM is not satisfactory. To circumvent this problem, we therefore intended to commence with the composition of ovarian follicular fluid (FF), an important microenvironment influencing oocyte growth. It is well known that FF has a critical role in oocyte development and maturation. However, the components in human FF remain largely unknown, particularly with regard to small molecular peptides. RESULTS In current study, the follicular fluid derived from human mature and immature follicles were harvested. The peptide profiles of FF were further investigated by using combined ultrafiltration and LC-MS/MS. The differential peptides were preliminary determined by performing differentially expressed analysis. Human and mouse oocyte culture were used to verify the influence of differential peptides on oocyte development. Constructing plasmids, cell transfecting, Co-IP, PLA etc. were used to reveal the detail molecular mechanism. The results from differentially expressed peptide as well as cultured human and mouse oocytes analyses showed that highly conserved C3a-peptide, a cleavage product of complement C3a, definitely affected oocytes development. Intriguingly, C3a-peptide possessed a novel function that promoted F-actin aggregation and spindle migration, raised the percentage of oocytes at the MII stage, without increasing the chromosome aneuploidy ratio, especially in poor-quality oocytes. These effects of C3a-peptide were attenuated by C3aR morpholino inhibition, suggesting that C3a-peptide affected oocytes development by collaborating with its classical receptor, C3aR. Specially, we found that C3aR co-localized to the spindle with β-tubulin to recruit F-actin toward the spindle and subcortical region of the oocytes through specific binding to MYO10, a key regulator for actin organization, spindle morphogenesis and positioning in oocytes. CONCLUSIONS Our results provide a new perspective for improving IVM culture systems by applying FF components and also provide molecular insights into the physiological function of C3a-peptide, its interaction with C3aR, and their roles in enabling meiotic division of oocytes.
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Affiliation(s)
- Ye Yang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Reproduction, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu Province, 210004, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Chun Zhao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Reproduction, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu Province, 210004, China
| | - Beili Chen
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Xiaoning Yu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Reproduction, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu Province, 210004, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Yuxi Zhou
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Reproduction, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu Province, 210004, China
| | - Danyu Ni
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Reproduction, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu Province, 210004, China
| | - Xiaolan Zhang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Reproduction, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu Province, 210004, China
| | - Junqiang Zhang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Reproduction, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu Province, 210004, China
| | - Xiufeng Ling
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Reproduction, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu Province, 210004, China.
| | - Zhiguo Zhang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, Anhui, China.
| | - Ran Huo
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China.
- Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School,, Nanjing Medical University, Nanjing, China.
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22
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He Q, Zheng Q, Liu Y, Miao Y, Zhang Y, Xu T, Bai S, Zhao X, Yang X, Xu Z. High-Salt Diet Causes Defective Oocyte Maturation and Embryonic Development to Impair Female Fertility in Mice. Mol Nutr Food Res 2023; 67:e2300401. [PMID: 37863820 DOI: 10.1002/mnfr.202300401] [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: 06/13/2023] [Revised: 09/05/2023] [Indexed: 10/22/2023]
Abstract
SCOPE High salinity has been reported to induce many human disorders in tissues and organs to interfere with their normal physiological functions. However, it is unknown how salinity affects the development of female germ cells. This study suggests that a high-salt diet (HSD) may weaken oocyte quality to impair female fertility in mice and investigates the underlying mechanisms. METHODS AND RESULTS C57BL/6 female mice are fed with a regular diet (Control) or a high-salt diet (HSD). Oocyte maturation, fertilization rate, embryonic development, and female fertility are evaluated. In addition, the spindle organization, actin polymerization, and kinetochore-microtubule attachment of oocytes are examined in both groups. Moreover, single-cell transcriptome data are used to demonstrate how HSD alters the transcript levels of genes. The observations confirm that HSD leads to female subfertility due to the deterioration of oocyte and embryo quality. The mechanism underlying reveals HSD compromises the oocytes' autophagy, apoptosis level, and mitochondrial function. CONCLUSION The work illustrates that a high concentration of salt diet results in oocyte meiotic arrest, fertilization failure, and early developmental defection that embryos undergo to reduce female fertility in mice by perturbing the level of autophagy and apoptosis, mitochondrial function in oocytes.
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Affiliation(s)
- Qinyuan He
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
- Department of Obstetrics and Gynecology, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210003, China
| | - Qiutong Zheng
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
- Maternal and Child Health Care Hospital of Wuxi, Wuxi, Jiangsu, 214002, China
| | - Yanping Liu
- Center of Reproduction and Genetics, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, 215006, China
| | - Yilong Miao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Yumeng Zhang
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Ting Xu
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Shufen Bai
- Department of Obstetrics and Gynecology, Nanjing Pukou District Hospital of Traditional Chinese Medicine, Nanjing, Jiangsu, 210000, China
| | - Xia Zhao
- Department of Reproductive Medicine, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, 210009, China
| | - Xiaojun Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Zhice Xu
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
- Maternal and Child Health Care Hospital of Wuxi, Wuxi, Jiangsu, 214002, China
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23
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Chang T, Zhao J, Li Q, Meng A, Xia Q, Li Y, Xiang W, Yao Z. Nuclear-cytoplasmic asynchrony in oocyte maturation caused by TUBB8 variants via impairing microtubule function: a novel pathogenic mechanism. Reprod Biol Endocrinol 2023; 21:109. [PMID: 37993944 PMCID: PMC10664611 DOI: 10.1186/s12958-023-01161-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/11/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND TUBB8, a crucial gene encoding microtubule protein, plays a pivotal role in cellular processes. Deleterious TUBB8 variants have been shown to significantly hinder oocyte maturation. In this study, we conducted an in vitro investigation using TUBB8 mutant mouse oocytes to elucidate the pathogenic mechanisms of TUBB8 variants in oocyte nuclear and cytoplasmic maturation. METHODS A mutant model was successfully established in mouse oocytes via microinjection to further investigate the effects of four novel discovered TUBB8 mutations on the nuclear and cytoplasmic maturation of mouse oocytes. Immunofluorescence and confocal microscopy were performed to observe the cortical polarity and spindle and of mutant oocytes. Active mitochondrial staining was performed to analyze mitochondrial distribution patterns. Endoplasmic reticulum and Ca2+ staining were conducted to assess ER distribution and cytoplasmic calcium ion concentration in oocytes. RESULTS In mouse oocytes, TUBB8 variants (p.A313V, p.C239W, p.R251Q, and p.G96R) resulted in a reduction of the first polar body extrusion rate, disruption of spindle assembly, and abnormal chromosome distribution. Additionally, these variants induced oocyte organelle abnormalities, including anomalies in mitochondrial redistribution and endoplasmic reticulum stress compared to the wild-type. CONCLUSION Deleterious TUBB8 variants could disrupt microtubule function, affecting critical processes such as spindle assembly, chromosome distribution, and organelle rearrangement during oocyte meiosis. These disruptions culminate in compromised nuclear-cytoplasmic maturation, consequently giving rise to oocyte maturation defects.
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Affiliation(s)
- Tianli Chang
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Jing Zhao
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Qi Li
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Anning Meng
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Qiuping Xia
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Yanping Li
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Wenpei Xiang
- Institute of Reproductive Health, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Hongshan, China
| | - Zhongyuan Yao
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.
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24
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Wang W, Zhang D, Sun L, Zhang Z, Zhang Y, Zhang Y, Zhang Y, Zhang M. Alpha-lipoic acid supplementation reverses the declining quality of oocytes exposed to cyclophosphamide. Food Chem Toxicol 2023; 181:114090. [PMID: 37838213 DOI: 10.1016/j.fct.2023.114090] [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: 02/26/2023] [Revised: 09/12/2023] [Accepted: 10/04/2023] [Indexed: 10/16/2023]
Abstract
Cyclophosphamide (CY) is a chemotherapeutic drug that is commonly used to treat malignancies of the ovary, breast, and hematology, as well as autoimmune disorders. As a cofactor of mitochondrial multienzyme complexes, alpha lipoic acid (ALA) is well known for its antioxidant characteristics, which operate directly on the scavenging of reactive oxygen species (ROS) and indirectly on the intracellular recycling of other antioxidants. However, the underlying mechanisms through which CY exerts its toxic effects on meiosis and oocyte quality, as well as a viable approach for protecting oocyte quality and preserving fertility, remain unknown. In present study, immunostaining and fluorescence intensity quantification were applied to assess the effects of CY and ALA supplementation on the key processes during the oocyte meiotic maturation. Our results show that supplementing oocytes with ALA, a well-known antioxidant and free radical scavenger, can reverse CY-induced oocyte meiotic maturation failure. Specifically, we found that CY exposure caused oocyte meiotic failure by disrupting meiotic organelle dynamics and arrangement, as well as a prominently impaired cytoskeleton assembly. In addition, CY caused an abnormal distribution of mitochondrion and cortical granules, two indicators of oocyte cytoplasmic maturation. More importantly, we show that ALA supplementation effectively reverses CY-induced meiotic failure and oocyte quality decline by suppressing oxidative stress-induced DNA damage and apoptosis in oocytes. Collectively, our data reveal that ALA supplementation is a feasible approach to protect oocytes from CY-exposed deterioration, providing a better understanding of the mechanisms involved in chemotherapy-induced meiotic failure.
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Affiliation(s)
- Wei Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Dandan Zhang
- Department of Reproductive Medicine, General Hospital of WanBei Coal Group, Suzhou, 234000, China
| | - Lei Sun
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Zihao Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yiwen Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yongteng Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yunhai Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
| | - Mianqun Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
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25
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Pan MH, Xu R, Zheng Z, Xiong J, Dong H, Wei Q, Ma B. The formins inhibitor SMIFH2 inhibits the cytoskeleton dynamics and mitochondrial function during goat oocyte maturation. Theriogenology 2023; 211:40-48. [PMID: 37562190 DOI: 10.1016/j.theriogenology.2023.08.002] [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: 05/29/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
The cytoskeleton plays a crucial role in facilitating the successful completion of the meiotic maturation of oocytes. Its influence extends to the process of oocyte nuclear maturation and the proper functioning of various organelles during cytoplasmic maturation. The formin family of proteins plays a crucial role in the molecular regulation of cytoskeletal assembly and organization; however, its role in goat oocytes are not fully understood. Our study examined the inhibition of formins activity, which revealed its crucial role in the maturation of goat oocytes. We observed that the inhibition of formins resulted in meiotic defects in goat oocytes, as evidenced by the hindered extrusion of polar bodies and the expansion of cumulus cells. Additionally, the oocytes exhibited altered actin dynamics and compromised spindle/chromosome structure upon formins inhibition. The results of the transcriptomic analysis highlighted a noteworthy alteration in the mRNA levels of genes implicated in mitochondrial functions and oxidative phosphorylation in formins inhibited oocytes. Validation experiments provided evidence that the meiotic defects observed in these oocytes were due to the excessive early apoptosis induced by reactive oxygen species (ROS). Our findings demonstrate that the involvement of formins in sustaining the cytoskeletal dynamics and mitochondrial function is crucial for the successful meiotic maturation of goat oocytes.
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Affiliation(s)
- Meng-Hao Pan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, China
| | - Rui Xu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, China
| | - Zhi Zheng
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, China
| | - Jinfeng Xiong
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, China
| | - Haiying Dong
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, China
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, China
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, China.
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26
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Hu LL, Chen S, Shen MY, Huang QY, Li HG, Sun SC, Wang JL, Luo XQ. Aflatoxin B1 impairs porcine oocyte quality via disturbing intracellular membrane system and ATP production. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115213. [PMID: 37421895 DOI: 10.1016/j.ecoenv.2023.115213] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/10/2023]
Abstract
Aflatoxin is the most common type of mycotoxins in contaminated corn, peanuts and rice, which affects the livestock and ultimately endangers human health. Aflatoxin is reported to have carcinogenicity, mutation, growth retardation, immunosuppression and reproductive toxicity. In present study we reported the causes for the declined porcine oocyte quality under aflatoxin exposure. We set up an in vitro exposure model and showed that aflatoxin B1 disturbed cumulus cell expansion and oocyte polar body extrusion. We found that aflatoxin B1 exposure disrupted ER distribution and elevated the expression of GRP78, indicating the occurrence of ER stress, and the increased calcium storage also confirmed this. Besides, the structure of cis-Golgi apparatus, another intracellular membrane system was also affected, showing with decreased GM130 expression. The oocytes under aflatoxin B1 exposure showed aberrant lysosome accumulation and higher LAMP2 expression, a marker for lysosome membrane protection, and this might be due to the aberrant mitochondria function with low ATP production and the increase of apoptosis, since we found that BAX expression increased, and ribosomal protein which is also an apoptosis-related factor RPS3 decreased. Taken together, our study revealed that aflatoxin B1 impairs intracellular membrane system ER, Golgi apparatus, lysosome and mitochondria function to affect porcine oocyte maturation quality.
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Affiliation(s)
- Lin-Lin Hu
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Shun Chen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Meng-Ying Shen
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Qiu-Yan Huang
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China
| | - Hong-Ge Li
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Jun-Li Wang
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China; Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, Baise, Guangxi 533000, China.
| | - Xiao-Qiong Luo
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China.
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Kulus J, Kranc W, Kulus M, Dzięgiel P, Bukowska D, Mozdziak P, Kempisty B, Antosik P. Expression of genes regulating cell division in porcine follicular granulosa cells. Cell Div 2023; 18:12. [PMID: 37550786 PMCID: PMC10408085 DOI: 10.1186/s13008-023-00094-7] [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: 04/19/2023] [Accepted: 07/27/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Cell cycle regulation influences the proliferation of granulosa cells and affects many processes related to ovarian folliclular growth and ovulation. Abnormal regulation of the cell cycle can lead to many diseases within the ovary. The aim of this study was to describe the expression profile of genes within granulosa cells, which are related to the formation of the cytoskeleton, organization of cell organelles inside the cell, and regulation of cell division. Established in vitro primary cultures from porcine ovarian follicle granulosa cells were maintained for 48, 96, 144 h and evaluated via microarray expression analysis. RESULTS Analyzed genes were assigned to 12 gene ontology groups "actin cytoskeleton organization", "actin filament organization", "actin filament-based process", "cell-matrix adhesion", "cell-substrate adhesion", "chromosome segregation", "chromosome separation", "cytoskeleton organization", "DNA integrity checkpoint", "DNA replication initiation", "organelle fision", "organelle organization". Among the genes with significantly changed expression, those whose role in processes within the ovary are selected for consideration. Genes with increased expression include (ITGA11, CNN1, CCl2, TPM2, ACTN1, VCAM-1, COL3A1, GSN, FRMD6, PLK2). Genes with reduced expression inlcude (KIF14, TACC3, ESPL1, CDC45, TTK, CDC20, CDK1, FBXO5, NEK2-NIMA, CCNE2). For the results obtained by microarray expressions, quantitative validation by RT-qPCR was performed. CONCLUSIONS The results indicated expression profile of genes, which can be considered as new molecular markers of cellular processes involved in signaling, cell structure organization. The expression profile of selected genes brings new insight into regulation of physiological processes in porcine follicular granulosa cells during primary in vitro culture.
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Affiliation(s)
- Jakub Kulus
- Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, Torun, Poland
| | - Wiesława Kranc
- Department of Anatomy, Poznan University of Medical Sciences, Poznan, Poland
| | - Magdalena Kulus
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, Torun, Poland
| | - Piotr Dzięgiel
- Division of Histology and Embryology, Department of Human Morphology and Embryology, Wroclaw Medical University, Wroclaw, Poland
- Department of Physiotherapy, Wroclaw University School of Physical Education, Wroclaw, Poland
| | - Dorota Bukowska
- Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, Torun, Poland
| | - Paul Mozdziak
- Physiology Graduate Faculty, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC, 27695, USA
| | - Bartosz Kempisty
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, Torun, Poland.
- Physiology Graduate Faculty, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC, 27695, USA.
- Division of Anatomy, Department of Human Morphology and Embryology, Wroclaw Medical University, Wroclaw, Poland.
- Center of Assisted Reproduction, Department of Obstetrics and Gynecology, University Hospital and Masaryk University, Brno, Czech Republic.
| | - Paweł Antosik
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, Torun, Poland
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Zhang JY, Zhang MY, Xiao SY, Zheng MF, Wang JL, Sun SC, Qin L. Nivalenol disrupts mitochondria functions during porcine oocyte meiotic maturation. Toxicon 2023:107223. [PMID: 37437783 DOI: 10.1016/j.toxicon.2023.107223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/29/2023] [Accepted: 07/09/2023] [Indexed: 07/14/2023]
Abstract
Oocyte maturation is important for fertility in mammals, since the quality of oocytes directly affects fertilization, embryo attachment and survival. Nivalenol is widely present in nature as a common toxin that contaminates grain and feed, and it has been reported to cause acute toxicity, immunotoxicity, reproductive toxicity and carcinogenic effects. In this study, we explored the impact of nivalenol on the porcine oocyte maturation and its possible mechanisms. The extrusion of the first polar body was significantly inhibited after incubating oocytes with nivalenol. Meanwhile, nivalenol exposure led to the abnormal distribution of mitochondria, aberrant calcium concentration and the reduction of membrane potential caused a significant decrease in the capacity of mitochondria to generate ATP. In addition, nivalenol induced oxidative stress, and the level of ROS was significantly increased in the nivalenol-treated group, which was confirmed by the perturbation of oxidative stress-related genes. We found that nivalenol-treated oocytes showed positive Annexin-V and γH2A.X signals, indicating the occurrence of apoptosis and DNA damage. In all, our data suggest that nivalenol disrupted porcine oocyte maturation through its effects on mitochondria-related oxidative stress, apoptosis and DNA damage.
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Affiliation(s)
- Jing-Yi Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Meng-Yao Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shi-Yi Xiao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Mei-Feng Zheng
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Jun-Li Wang
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Li Qin
- Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China.
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Miao X, Guo R, Williams A, Lee C, Ma J, Wang PJ, Cui W. Replication Protein A1 is essential for DNA damage repair during mammalian oogenesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.04.547725. [PMID: 37461444 PMCID: PMC10349974 DOI: 10.1101/2023.07.04.547725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Persistence of unrepaired DNA damage in oocytes is detrimental and may cause genetic aberrations, miscarriage, and infertility. RPA, an ssDNA-binding complex, is essential for various DNA-related processes. Here we report that RPA plays a novel role in DNA damage repair during postnatal oocyte development after meiotic recombination. To investigate the role of RPA during oogenesis, we inactivated RPA1 (replication protein A1), the largest subunit of the heterotrimeric RPA complex, specifically in oocytes using two germline-specific Cre drivers (Ddx4-Cre and Zp3-Cre). We find that depletion of RPA1 leads to the disassembly of the RPA complex, as evidenced by the absence of RPA2 and RPA3 in RPA1-deficient oocytes. Strikingly, severe DNA damage occurs in RPA1-deficient GV-stage oocytes. Loss of RPA in oocytes triggered the canonical DNA damage response mechanisms and pathways, such as activation of ATM, ATR, DNA-PK, and p53. In addition, the RPA deficiency causes chromosome misalignment at metaphase I and metaphase II stages of oocytes, which is consistent with altered transcript levels of genes involved in cytoskeleton organization in RPA1-deficient oocytes. Absence of the RPA complex in oocytes severely impairs folliculogenesis and leads to a significant reduction in oocyte number and female infertility. Our results demonstrate that RPA plays an unexpected role in DNA damage repair during mammalian folliculogenesis.
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Affiliation(s)
- Xiaosu Miao
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Rui Guo
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, USA
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, Anhui, China
| | - Andrea Williams
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Catherine Lee
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Jun Ma
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, USA
| | - P. Jeremy Wang
- Department of Biomedical Sciences, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, USA
| | - Wei Cui
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
- Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts, Amherst, MA, USA
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Ma X, Wang M, Wang J, Zhang Q, Pu S, Wang R, Yu S, Wang L, Pan Y. Dynamic Changes in Proteome during Yak Oocyte Maturation Analyzed Using iTRAQ Technology. Animals (Basel) 2023; 13:2085. [PMID: 37443883 DOI: 10.3390/ani13132085] [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: 04/28/2023] [Revised: 06/16/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
The aim of this study was to investigate protein regulation at different time points during the in vitro maturation of yak oocytes. Yak oocytes at GV, MI, and MII stages were collected during in vitro maturation, and differential proteomics sequencing was performed using iTRAQ technology. GO functional classification indicated that the differential proteins were closely associated with biological processes such as "metabolic processes", and molecular events such as "binding" molecular-function-related categories were active. KOG analysis showed that energy-metabolism-related activities were vigorous during oocyte development from the GV phase to MI phase, and genetic material preparation activities were more active when oocytes developed from the MI stage to MII stage. KEGG pathway analysis showed that the PPAR metabolic pathway, Hippo signaling pathway, and ECM-receptor interaction and metabolic pathway were enriched from the GV to the MI stages. The PI3K-Akt, TGF-β, and phagosome pathways were enriched from the MI stage to the MII stage. These results indicate that transient dynamic changes occurred in the proteome during the maturation of yak oocytes, and the physiological functions mediated by these were also different. The accurate identification of the differential proteins in the three stages of GV, MI, and MII was helpful in further analyzing the molecular regulatory mechanism of yak oocyte maturation.
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Affiliation(s)
- Xin Ma
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Meng Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Jinglei Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Qian Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Sisi Pu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Rui Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Sijiu Yu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Libin Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Yangyang Pan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
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31
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Zhang Y, Wang X, Zhao Y, Zhao J, Yu T, Yao Y, Zhao R, Yu R, Liu J, Su J. Reproductive toxicity of microplastics in female mice and their offspring from induction of oxidative stress. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121482. [PMID: 36967007 DOI: 10.1016/j.envpol.2023.121482] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/13/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
Microplastics (MPs) are an emerging pollutant that is becoming recognized as an increasingly serious environmental problem. The biological toxicity and resulting health risks of MPs have attracted much attention in the research community. While the effects of MPs on various mammalian organ systems have been described, their interactions with oocytes and the underlying mechanism of their activity within the reproductive system have remained ambiguous. Here, we discovered that oral administration of MPs to mice (40 mg/kg per day for 30 days) significantly reduced the oocyte maturation and fertilization rate, embryo development, and fertility. Ingestion of MPs significantly increased the ROS level in oocytes and embryos, leading to oxidative stress, mitochondrial dysfunction, and apoptosis. Moreover, mouse exposure to MPs caused DNA damage in oocytes, including spindle/chromosome morphology defects, and downregulation of actin and Juno expression in mouse oocytes. In addition, mice were also exposed to MPs (40 mg/kg per day) during gestation and lactation to determine trans-generational reproductive toxicity. The results showed that maternal exposure to MPs during pregnancy resulted in a decline in birth and postnatal body weight in offspring mice. Furthermore, MPs exposure of mothers markedly reduced oocyte maturation, fertilization rate, and embryonic development in their female offspring. This investigation provides new insights on the mechanism of MPs' reproductive toxicity and raises concerns for potential risks of MP pollution on the reproductive health of humans and animals.
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Affiliation(s)
- Yingbing Zhang
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Xiyue Wang
- Key Laboratory of Livestock Biology, College of Science and Technology, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Yifan Zhao
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Jianglin Zhao
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Tong Yu
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Yupei Yao
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Ruolin Zhao
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Ruiluan Yu
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Jun Liu
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China
| | - Jianmin Su
- Key Laboratory of Livestock Biology, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China.
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32
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Jiang Y, Adhikari D, Li C, Zhou X. Spatiotemporal regulation of maternal mRNAs during vertebrate oocyte meiotic maturation. Biol Rev Camb Philos Soc 2023; 98:900-930. [PMID: 36718948 DOI: 10.1111/brv.12937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 02/01/2023]
Abstract
Vertebrate oocytes face a particular challenge concerning the regulation of gene expression during meiotic maturation. Global transcription becomes quiescent in fully grown oocytes, remains halted throughout maturation and fertilization, and only resumes upon embryonic genome activation. Hence, the oocyte meiotic maturation process is largely regulated by protein synthesis from pre-existing maternal messenger RNAs (mRNAs) that are transcribed and stored during oocyte growth. Rapidly developing genome-wide techniques have greatly expanded our insights into the global translation changes and possible regulatory mechanisms during oocyte maturation. The storage, translation, and processing of maternal mRNAs are thought to be regulated by factors interacting with elements in the mRNA molecules. Additionally, posttranscriptional modifications of mRNAs, such as methylation and uridylation, have recently been demonstrated to play crucial roles in maternal mRNA destabilization. However, a comprehensive understanding of the machineries that regulate maternal mRNA fate during oocyte maturation is still lacking. In particular, how the transcripts of important cell cycle components are stabilized, recruited at the appropriate time for translation, and eliminated to modulate oocyte meiotic progression remains unclear. A better understanding of these mechanisms will provide invaluable insights for the preconditions of developmental competence acquisition, with important implications for the treatment of infertility. This review discusses how the storage, localization, translation, and processing of oocyte mRNAs are regulated, and how these contribute to oocyte maturation progression.
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Affiliation(s)
- Yanwen Jiang
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Deepak Adhikari
- Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, 19 Innovation Walk, Melbourne, VIC, 3800, Australia
| | - Chunjin Li
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xu Zhou
- College of Animal Science, Jilin University, 5333 Xian Road, Changchun, 130062, China
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Sun MX, Qiao FX, Xu ZR, Liu YC, Xu CL, Wang HL, Qi ZQ, Liu Y. Aristolochic acid I exposure triggers ovarian dysfunction by activating NLRP3 inflammasome and affecting mitochondrial homeostasis. Free Radic Biol Med 2023; 204:313-324. [PMID: 37201634 DOI: 10.1016/j.freeradbiomed.2023.05.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 05/02/2023] [Accepted: 05/10/2023] [Indexed: 05/20/2023]
Abstract
Aristolochic acids are widely distributed in the plants of Aristolochiaceae family and Asarum species. Aristolochic acid I (AAI) is the most frequent compound of aristolochic acids, which can accumulate in the soil, and then contaminates crops and water and enters the human body. Research has shown that AAI affects the reproductive system. However, the mechanism of AAI's effects on the ovaries at the tissue level still needs to be clarified. In this research, we found AAI exposure reduced the body and ovarian growth in mice, decreased the ovarian coefficient, prevented follicular development, and increased atretic follicles. Further experiments showed that AAI upregulated nuclear factor-κB and tumor necrosis factor-α expression, activated the NOD-like receptor protein 3 inflammasome, and led to ovarian inflammation and fibrosis. AAI also affected mitochondrial complex function and the balance between mitochondrial fusion and division. Metabolomic results also showed ovarian inflammation and mitochondrial dysfunction due to AAI exposure. These disruptions reduced the oocyte developmental potential by forming abnormal microtubule organizing centers and expressing abnormal BubR1 to destroy spindle assembly. In summary, AAI exposure triggers ovarian inflammation and fibrosis, affecting the oocyte developmental potential.
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Affiliation(s)
- Ming-Xin Sun
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Feng-Xin Qiao
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhi-Ran Xu
- Translational Medicine Research Center, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
| | - Yue-Cen Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Chang-Long Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, Guangxi, 530031, China
| | - Hai-Long Wang
- Department of Basic Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
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Li Y, Xiong B, Miao Y, Gao Q. Silibinin supplementation ameliorates the toxic effects of butyl benzyl phthalate on porcine oocytes by eliminating oxidative stress and autophagy. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121734. [PMID: 37120001 DOI: 10.1016/j.envpol.2023.121734] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Butyl benzyl phthalate (BBP) is a common environmental pollutant, it is high in paints, adhesives and other decorative materials, food packaging bags, cleaning agents, is a plasticizer is very widely used in daily life. However, it remains unknown whether BBP causes damage to oocytes cultured in vitro and whether there is an effective rescue strategy. Here, we evaluated the effects of exposure to different concentrations of BBP (10, 50, and 100 μM) on the meiosis of porcine oocytes. The results showed that exposure to BBP (100 μM) severely impaired expansion of cumulus-oocyte complex (COCs) and PBE (control:71.6% vs 100 μM: 48.8%). Spindle conformation and chromosome alignment were also significantly abnormal (34.8% and 46.0%, respectively) compared to the control (11.1% and 17.5%, respectively), and BBP caused damage to microfilaments and cortical granules (CGs). In addition, oocyte exposure to BBP induced impaired mitochondrial function and disrupted mitochondrial integrity. Silibinin is a natural active substance isolated from the seeds of Silybum marianum (L.) Gaertneri with strong antioxidant and anti-inflammatory effects. Noteworthy, we added different concentrations of silibinin (10, 20, and 50 μM) to BBP-exposed oocytes for rescue experiments, where 50 μM effectively rescued BBP-induced meiotic failure (70.6%). It also prevented the generation of excessive autophagy and apoptosis in oocytes by inhibiting the production of ROS. In a word, our results suggest that supplementation of silibinin attenuates the impaired oocyte development caused by BBP exposure,which provides a potential strategy to protect oocytes from environmental pollutants.
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Affiliation(s)
- Yu Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Bo Xiong
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yilong Miao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qian Gao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China.
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Inhibitory Effects of 3-Methylcholanthrene Exposure on Porcine Oocyte Maturation. Int J Mol Sci 2023; 24:ijms24065567. [PMID: 36982641 PMCID: PMC10058619 DOI: 10.3390/ijms24065567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
3-methylcholanthrene (3-MC) is a highly toxic environmental pollutant that impairs animal health. 3-MC exposure can cause abnormal spermatogenesis and ovarian dysfunction. However, the effects of 3-MC exposure on oocyte maturation and embryo development remain unclear. This study revealed the toxic effects of 3-MC exposure on oocyte maturation and embryo development. 3-MC with different concentrations of 0, 25, 50, and 100 μM was applied for in vitro maturation of porcine oocytes. The results showed that 100 μM 3-MC significantly inhibited cumulus expansion and the first polar body extrusion. The rates of cleavage and blastocyst of embryos derived from 3-MC-exposed oocytes were significantly lower than those in the control group. Additionally, the rates of spindle abnormalities and chromosomal misalignments were higher than those in the control group. Furthermore, 3-MC exposure not only decreased the levels of mitochondria, cortical granules (CGs), and acetylated α-Tubulin, but also increased the levels of reactive oxygen species (ROS), DNA damage, and apoptosis. The expression of cumulus expansion and apoptosis-related genes was abnormal in 3-MC-exposed oocytes. In conclusion, 3-MC exposure disrupted the nuclear and cytoplasmic maturation of porcine oocytes through oxidative stress.
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36
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Lai XL, Xiong WJ, Li LS, Lan MF, Zhang JX, Zhou YT, Niu D, Duan X. Zinc deficiency compromises the maturational competence of porcine oocyte by inducing mitophagy and apoptosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 252:114593. [PMID: 36724708 DOI: 10.1016/j.ecoenv.2023.114593] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/26/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
Zinc, an essential trace mineral, plays a pivotal role in cell proliferation, maintenance of redox homeostasis, apoptosis, and aging. Serum zinc concentrations are reduced in patients with polycystic ovary syndrome (PCOS). However, the underlying mechanism of the effects of zinc deficiency on the female reproductive system, especially oocyte quality, has not been fully elucidated. Thus, we established an in vitro experimental model by adding N,N,N',N'-Tetrakis(2-pyridylmethyl) ethylenediamine (TPEN) into the culture medium, and to determine the potential regulatory function of zinc during porcine oocytes maturation. In the present study, we found that zinc deficiency caused aberrant meiotic progress, accompanied by the disrupted cytoskeleton structure in porcine oocytes. Zinc deficiency impaired mitochondrial function and dynamics, leading to the increase of reactive oxygen species (ROS) and acetylation level of the antioxidative enzyme superoxide dismutase 2 (SOD2), eventually induced the occurrence of oxidative stress and early apoptosis. Moreover, zinc deficiency perturbed cytosolic Ca2+ homeostasis, lipid droplets formation, demonstrating the aberrant mitochondrial function in porcine oocytes. Importantly, we found that zinc deficiency in porcine oocytes induced the occurrence of mitophagy by activating the PTEN-induced kinase 1/Parkin signaling pathway. Collectively, our findings demonstrated that zinc was a critical trace mineral for maintaining oocyte quality by regulating mitochondrial function and autophagy in porcine oocytes.
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Affiliation(s)
- Xin-Le Lai
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Wen-Jie Xiong
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Li-Shu Li
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Meng-Fan Lan
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Jin-Xin Zhang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Yu-Ting Zhou
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Dong Niu
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China
| | - Xing Duan
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China.
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Zhu H, Wen Z, Zhang A, Liu D, Wang H, Cheng Y, Yang X, Xiao Y, Li J, Sun D, Wu B, Gao J. RhoGDIα regulates spermatogenesis through Rac1/cofilin/F-actin signaling. Commun Biol 2023; 6:214. [PMID: 36823181 PMCID: PMC9950379 DOI: 10.1038/s42003-023-04579-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 02/10/2023] [Indexed: 02/25/2023] Open
Abstract
Spermatogenesis is an extremely complex process, and any obstruction can cause male infertility. RhoGDIα has been identified as a risk of male sterility. In this study, we generate RhoGDIα knockout mice, and find that the males have severely low fertility. The testes from RhoGDIα-/- mice are smaller than that in WT mice. The numbers of spermatogonia and spermatocytes are decreased in RhoGDIα-/- testis. Spermatogenesis is compromised, and spermatocyte meiosis is arrested at zygotene stage in RhoGDIα-/- mice. Acrosome dysplasia is also observed in sperms of the mutant mice. At the molecular level, RhoGDIα deficiency activate the LIMK/cofilin signaling pathway, inhibiting F-actin depolymerization, impairing testis and inducing low fertility in mouse. In addition, the treatment of RhoGDIα-/- mice with Rac1 inhibitor NSC23766 alleviate testis injury and improve sperm quality by inhibiting the LIMK/cofilin/F-actin pathway during spermatogenesis. Together, these findings reveal a previously unrecognized RhoGDIα/Rac1/F-actin-dependent mechanism involved in spermatogenesis and male fertility.
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Affiliation(s)
- Haixia Zhu
- School of Life Science and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, 250100, China
| | - Zongzhuang Wen
- Medical Science and Technology Innovation Center, Shandong First Medical University, Jinan, 250117, China
| | - Aizhen Zhang
- School of Life Science and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, 250100, China
| | - Dongyue Liu
- School of Life Science and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, 250100, China
| | - Hongxiang Wang
- School of Life Science and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, 250100, China
| | - Yin Cheng
- School of Life Science and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, 250100, China
| | - Xing Yang
- School of Life Science and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, 250100, China
| | - Yu Xiao
- School of Life Science and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, 250100, China
| | - Jianyuan Li
- Key Laboratory of Male Reproductive Health, National Health and Family Planning Commission, Beijing, 100081, China
| | - Daqing Sun
- Department of Pediatric Surgery, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| | - Bin Wu
- Department of Reproductive Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China.
- Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.
| | - Jiangang Gao
- School of Life Science and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, 250100, China.
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Gou M, Li J, Yi L, Li H, Ye X, Wang H, Liu L, Sun B, Zhang S, Zhu Z, Liu J, Liu L. Reprogramming of ovarian aging epigenome by resveratrol. PNAS NEXUS 2023; 2:pgac310. [PMID: 36743471 PMCID: PMC9896145 DOI: 10.1093/pnasnexus/pgac310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/23/2022] [Indexed: 12/26/2022]
Abstract
Resveratrol is an antiaging, antioxidant, and anti-inflammatory natural polyphenolic compound. Growing evidence indicates that resveratrol has potential therapeutic effects for improving aging ovarian function. However, the mechanisms underlying prolonged reproductive longevity remain elusive. We found that resveratrol ameliorates ovarian aging transcriptome, some of which are associated with specific changes in methylome. In addition to known aging transcriptome of oocytes and granulosa cells such as decline in oxidoreductase activity, metabolism and mitochondria function, and elevated DNA damage and apoptosis, actin cytoskeleton are notably downregulated with age, and these defects are mostly rescued by resveratrol. Moreover, the aging-associated hypermethylation of actin cytoskeleton is decreased by resveratrol. In contrast, deletion of Tet2, involved in DNA demethylation, abrogates resveratrol-reprogrammed ovarian aging transcriptome. Consistently, Tet2 deficiency results in additional altered pathways as shown by increased mTOR and Wnt signaling, as well as reduced DNA repair and actin cytoskeleton with mouse age. Moreover, genes associated with oxidoreductase activity and oxidation-reduction process were hypermethylated in Tet2-deficient oocytes from middle-age mice treated with resveratrol, indicating that loss of Tet2 abolishes the antioxidant effect of resveratrol. Taking together, our finding provides a comprehensive landscape of transcriptome and epigenetic changes associated with ovarian aging that can be reprogrammed by resveratrol administration, and suggests that aberrantly increased DNA methylation by Tet2 deficiency promotes additional aging epigenome that cannot be effectively restored to younger state by resveratrol.
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Affiliation(s)
- Mo Gou
- Department of Genetics and Cell Biology, College of Life Science, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300350, China
| | - Jie Li
- Department of Genetics and Cell Biology, College of Life Science, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300350, China
| | - Lizhi Yi
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, 100101 Beijing, China
| | - Huiyu Li
- Department of Genetics and Cell Biology, College of Life Science, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300350, China
| | - Xiaoying Ye
- Department of Genetics and Cell Biology, College of Life Science, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300350, China
| | - Huasong Wang
- Department of Genetics and Cell Biology, College of Life Science, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300350, China
| | - Linlin Liu
- Department of Genetics and Cell Biology, College of Life Science, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300350, China
| | - Baofa Sun
- Department of Zoology, College of Life Science, Nankai University, Tianjin 300071, China
| | - Song Zhang
- Department of Biochemistry and Molecular Biology, College of Life Science, Nankai University, Tianjin 300071, China
| | - Zhengmao Zhu
- Department of Genetics and Cell Biology, College of Life Science, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300350, China
| | - Jiang Liu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, 100101 Beijing, China
| | - Lin Liu
- Department of Genetics and Cell Biology, College of Life Science, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300350, China
- Institute of Translational Medicine, Nankai Union Medical Center, Nankai University, Tianjin 300000, China
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Pan MH, Xu R, Zhang Y, Yin L, Li R, Wen D, Lu S, Gao Y, Zhao X, Wei Q, Han B, Ma B. The Impact of Arp2/3 Complex Inhibition on Cytoskeleton Dynamics and Mitochondrial Function during Goat Oocyte Meiosis. Animals (Basel) 2023; 13:ani13020263. [PMID: 36670803 PMCID: PMC9854427 DOI: 10.3390/ani13020263] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/10/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023] Open
Abstract
F-actin is of critical importance in oocyte meiotic maturation. Actin assembly and its dynamics are mainly regulated by actin nucleation factors. The actin-related protein complex 2/3 (Arp2/3) is responsible for the organization of F-actin filaments. However, the role of Arp2/3 complex in goat oocytes has not been fully elucidated. Our findings demonstrate that Arp2/3 complex activity is necessary for the maturation of goat oocytes. The Arp2/3 complex-specific inhibitor CK666 impairs the maturation of goat oocytes and alters the genes associated with cumulus expansion, both of which suggest that normal meiosis is affected. Arp2, one of the subunits of the Arp2/3 complex, was found to be mainly accumulated at the oocyte cortex and to co-localize with F-actin during goat oocyte maturation in our results. Thus, we further investigated the cytoskeleton dynamics and found that Arp2/3 complex inhibition disrupts the F-actin assembly and spindle organization. Further analysis revealed that, in addition to direct effects on the cytoskeleton, Arp2/3 complex could also induce ROS accumulation and oxidative stress by disrupting mitochondrial distribution and function, ultimately increasing the rate of early apoptosis in goat oocytes. Our study provides evidence that the Arp2/3 complex is a key regulator of goat oocyte maturation through its regulation of the cytoskeleton dynamics and mitochondrial function.
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Affiliation(s)
- Meng-Hao Pan
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Rui Xu
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Yiqian Zhang
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Lu Yin
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Ruoyu Li
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Dongxu Wen
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Sihai Lu
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Yan Gao
- Yulin Animal Husbandry and Veterinary Service Center, Yulin 719000, China
| | - Xiaoe Zhao
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Bin Han
- Yulin Animal Husbandry and Veterinary Service Center, Yulin 719000, China
- Correspondence: (B.H.); (B.M.)
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
- Correspondence: (B.H.); (B.M.)
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Zhang M, Sun L, Zhang Z, Shentu L, Zhang Y, Li Z, Zhang Y, Zhang Y. Alpha-lipoic acid supplementation restores the meiotic competency and fertilization capacity of porcine oocytes induced by arsenite. Front Cell Dev Biol 2022; 10:943757. [PMID: 36263016 PMCID: PMC9574060 DOI: 10.3389/fcell.2022.943757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022] Open
Abstract
Arsenite is known as a well-known endocrine disrupting chemicals, and reported to be associated with an increased incidence of negative health effects, including reproductive disorders and dysfunction of the endocrine system. However, it still lacks of the research regarding the beneficial effects of ALA on arsenite exposed oocytes, and the underlying mechanisms have not been determined. Here, we report that supplementation of alpha-lipoic acid (ALA), a strong antioxidant naturally present in all cells of the humans, is able to restore the declined meiotic competency and fertilization capacity of porcine oocytes induced by arsenite. Notably, ALA recovers the defective nuclear and cytoplasmic maturation of porcine oocytes caused by arsenite exposure, including the impaired spindle formation and actin polymerization, the defective mitochondrion integrity and cortical granules distribution. Also, ALA recovers the compromised sperm binding ability to maintain the fertilization potential of arsenite-exposed oocytes. Importantly, ALA suppresses the oxidative stress by reducing the levels of ROS and inhibits the occurrence of DNA damage along with apoptosis. Above all, we provide a new perspective for the application of ALA in effectively preventing the declined oocyte quality induced by environmental EDCs.
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E Z, Zhao Y, Sun J, Zhang X, Jin Q, Gao Q. Glyphosate decreases bovine oocyte quality by inducing oxidative stress and apoptosis. ZYGOTE 2022; 30:704-711. [PMID: 35677960 DOI: 10.1017/s0967199422000181] [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: 11/07/2022]
Abstract
Glyphosate is a universal herbicide with genital toxicity, but the effect of glyphosate on oocytes has not been reported. This study aimed to evaluate the effect of glyphosate (0, 10, 20, 50 and 100 mM) on bovine oocyte in vitro maturation. We showed that 50 mM glyphosate adversely affects the development of bovine oocytes. Exposure of oocytes to 50 mM glyphosate caused an abnormal reduction in oxidative (redox) levels compared with that in the control group, with a significantly higher reactive oxide species level (P < 0.05) and significantly lower glutathione (GSH) expression (P < 0.05). Additionally, the mRNA levels of antioxidant genes (SOD1, SOD2, SIRT2, SIRT3) and the mitochondrial membrane potential (MMP) were significantly reduced (P < 0.05). Furthermore, treatment with 50 mM glyphosate-induced apoptosis, and the mRNA levels of the apoptotic genes Caspase-3 and Caspase-4 were significantly higher than those in the control group (P < 0.05); however, the mRNA level of BAX was significantly higher than that in the control group (P < 0.01). Additionally, the mRNA levels of the anti-apoptotic genes Survivin and BCL-XL were significantly lower than those in the control group (P < 0.05), and oocyte quality was adversely affected. Together, our results confirmed that glyphosate impairs the quality of oocytes by promoting abnormal oocyte redox levels and apoptosis.
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Affiliation(s)
- Zhiqiang E
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China
- College of Agriculture, Yanbian University, China
- Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China
| | - Yuhan Zhao
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China
- College of Agriculture, Yanbian University, China
- Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China
| | - Jingyu Sun
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China
- College of Agriculture, Yanbian University, China
- Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China
| | - Xiaomeng Zhang
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China
- College of Agriculture, Yanbian University, China
- Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China
| | - Qingguo Jin
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China
- College of Agriculture, Yanbian University, China
- Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China
| | - Qingshan Gao
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China
- College of Agriculture, Yanbian University, China
- Jilin Engineering Research Center of Yanbian Yellow Cattle Resources Reservation, China
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Zhao T, Pan Y, Li Q, Ding T, Niayale R, Zhang T, Wang J, Wang Y, Zhao L, Han X, Baloch AR, Cui Y, Yu S. Leukemia inhibitory factor enhances the development and subsequent blastocysts quality of yak oocytes in vitro. Front Vet Sci 2022; 9:997709. [PMID: 36213393 PMCID: PMC9533679 DOI: 10.3389/fvets.2022.997709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/22/2022] [Indexed: 11/25/2022] Open
Abstract
Leukemia inhibitory factor (LIF) is a multipotent cytokine of the IL-6 family which plays a critical role in the maturation and development of oocytes. This study evaluated the influence of LIF on the maturation and development ability of yak oocytes, and the quality of subsequent blastocysts under in vitro culture settings. Different concentrations of LIF (0, 25, 50, and 100 ng/mL) were added during the in vitro culture of oocytes to detect the maturation rate of oocytes, levels of mitochondria, reactive oxygen species (ROS), actin, and apoptosis in oocytes, mRNA transcription levels of apoptosis and antioxidant-related genes in oocytes, and total cell number and apoptosis levels in subsequent blastocysts. The findings revealed that 50 ng/mL LIF could significantly increase the maturation rate (p < 0.01), levels of mitochondria (p < 0.01) and actin (p < 0.01), and mRNA transcription levels of anti-apoptotic and antioxidant-related genes in yak oocytes. Also, 50 ng/mL LIF could significantly lower the generation of ROS (p < 0.01) and apoptosis levels of oocytes (p < 0.01). In addition, blastocysts formed from 50 ng/mL LIF-treated oocytes showed significantly larger total cell numbers (p < 0.01) and lower apoptosis rates (p < 0.01) than the control group. In conclusion, the addition of LIF during the in vitro maturation of yak oocytes improved the quality and the competence of maturation and development in oocytes, as well as the quality of subsequent blastocysts. The result of this study provided some insights into the role and function of LIF in vitro yak oocytes maturation, as well as provided fundamental knowledge for assisted reproductive technologies in the yak.
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Affiliation(s)
- Tian Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Yangyang Pan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Qin Li
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Tianyi Ding
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Robert Niayale
- School of Veterinary Medicine, University for Development Studies, Tamale, Ghana
| | - Tongxiang Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Jinglei Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Yaying Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Ling Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Xiaohong Han
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Abdul Rasheed Baloch
- Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Yan Cui
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
| | - Sijiu Yu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou, China
- *Correspondence: Sijiu Yu
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Wang Y, Li S, Yang S, Li X, Liu L, Ma X, Niu D, Duan X. Exposure to phenanthrene affects oocyte meiosis by inducing mitochondrial dysfunction and endoplasmic reticulum stress. Cell Prolif 2022; 56:e13335. [PMID: 36125441 PMCID: PMC9816937 DOI: 10.1111/cpr.13335] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/17/2022] [Accepted: 08/19/2022] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVES Phenanthrene (PHE) is one of the most abundant polycyclic aromatic hydrocarbons (PAHs), which is a widespread environmental contaminant. Various studies showed that PHE has adverse impacts on animals and human health. It has been shown that PHE exposure induced follicular atresia and endocrine dyscrasia in female mice. However, the potential mechanism regarding how PHE affects female reproductive system especially the oocyte quality has not been elucidated. METHODS AND RESULTS In this study, we set up PHE exposure model and found that PHE exposure compromised oocytes maturation competence by inhibiting spindle assembly and chromosomes alignment. Moreover, PHE exposure induced mitochondrial dysfunction and endoplasmic reticulum (ER) stress, leading to increased reactive oxygen species (ROS) and aberrant calcium levels in cytoplasm, eventually induced oxidative stress and DNA damage in oocytes. Furthermore, we found that oral administration of PHE caused the occurrence of oxidative stress and apoptosis in female ovary. In addition, the oocyte exhibited aberrant spindle morphology and failure of actin cap formation in metaphase II oocytes. CONCLUSIONS Taken together, our study demonstrated that mitochondrial dysfunction and ER stress-induced oxidative stress and DNA damage are the major cause of poor oocyte quality after PHE exposure.
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Affiliation(s)
- Yi Wang
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Si‐Hong Li
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Shu‐Jie Yang
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Xiao‐Qing Li
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Lu Liu
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Xiang Ma
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Dong Niu
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Xing Duan
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
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Lu PS, Wang Y, Jiao L, Sun SC. Nivalenol affects Cyclin B1 level and activates SAC for cell cycle progression in mouse oocyte meiosis. Cell Prolif 2022; 55:e13277. [PMID: 35746834 PMCID: PMC9436911 DOI: 10.1111/cpr.13277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/02/2022] [Accepted: 05/17/2022] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES Nivalenol (NIV) is a secondary metabolite of type B trichothecene mycotoxin produced by Fusarium genera, which is widely found in contaminated food and crops such as corn, wheat and peanuts. NIV is reported to have hepatotoxicity, immunotoxicity, genotoxicity, and reproductive toxicity. Previous studies indicate that NIV disturbs mammalian oocyte maturation. Here, we reported that delayed cell cycle progression might be the reason for oocyte maturation defect caused by NIV exposure. METHODS AND RESULTS We set up a NIV exposure model and showed that NIV did not affect G2/M transition for meiosis resumption, but disrupted the polar body extrusion of oocytes. Further analysis revealed that oocytes were arrested at metaphase I, which might be due to the lower expression of Cyclin B1 after NIV exposure. After cold treatment, the microtubules were disassembled in the NIV-exposed oocytes, indicating that NIV disrupted microtubule stability. Moreover, NIV affected the attachment between kinetochore and microtubules, which further induced the activation of MAD2/BUBR1 at the kinetochores, suggesting that spindle assemble checkpoint (SAC) was continuously activated during oocyte meiotic maturation. CONCLUSIONS Taken together, our study demonstrated that exposure to NIV affected Cyclin B1 expression and activated microtubule stability-dependent SAC to ultimately disturb cell cycle progression in mouse oocyte meiosis.
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Affiliation(s)
- Ping-Shuang Lu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yue Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Le Jiao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Song M, Li Y, Zhou Y, Yan J, Zhou X, Gao Q, Miao Y, Xiong B. Nicotinamide mononucleotide supplementation improves the quality of porcine oocytes under heat stress. J Anim Sci Biotechnol 2022; 13:68. [PMID: 35706001 PMCID: PMC9202089 DOI: 10.1186/s40104-022-00716-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 04/05/2022] [Indexed: 11/17/2022] Open
Abstract
Background Elevated ambient temperature-caused heat stress is a major concern for livestock production due to its negative impact on animal feed intake, growth, reproduction, and health. Particularly, the germ cells are extremely sensitive to the heat stress. However, the effective approach and strategy regarding how to protect mammalian oocytes from heat stress-induced defects have not been determined. Methods Germinal vesicle (GV) porcine oocytes were cultured at 41.5 °C for 24 h to induce heat stress, and then cultured at 38.5 °C to the specific developmental stage for subsequent analysis. Nicotinamide mononucleotide (NMN) was dissolved in water to 1 mol/L for a stock solution and further diluted with the maturation medium to the final concentrations of 10 μmol/L, 20 μmol/L, 50 μmol/L or 100 μmol/L, respectively, during heat stress. Immunostaining and fluorescence intensity quantification were applied to assess the effects of heat stress and NMN supplementation on the key processes during the oocyte meiotic maturation. Results Here, we report that NMN supplementation improves the quality of porcine oocytes under heat stress. Specifically, we found that heat stress resulted in oocyte maturation failure by disturbing the dynamics of meiotic organelles, including the cytoskeleton assembly, cortical granule distribution and mitochondrial function. In addition, heat stress induced the production of excessive reactive oxygen species (ROS) and DNA damage, leading to the occurrence of apoptosis in oocytes and subsequent embryonic development arrest. More importantly, we validated that supplementation of NMN during heat stress restored the meiotic defects during porcine oocyte maturation. Conclusions Taken together, our study documents that NMN supplementation is an effective approach to improve the quality of oocytes under heat stress by promoting both nuclear and cytoplasmic maturation.
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Affiliation(s)
- Meijie Song
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yu Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yihang Zhou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiner Yan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaohua Zhou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Qian Gao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yilong Miao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Bo Xiong
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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Li Q, Zhang Y, Li W, Yan K, Liu Y, Xu H, Lu Y, Liang X, Yang X. Allicin protects porcine oocytes against LPS-induced defects during maturation in vitro. Theriogenology 2022; 182:138-147. [DOI: 10.1016/j.theriogenology.2022.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 12/15/2022]
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Zhang Y, Li Q, Li W, Yan K, Liu Y, Xu H, Jiang M, Lu Y, Liang X, Shang J, Yang X. 2-Mercaptoethanol promotes porcine oocyte maturation in vitro by maintaining autophagy homeostasis. Theriogenology 2022; 186:155-167. [DOI: 10.1016/j.theriogenology.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 11/29/2022]
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Melatonin Rescues Dimethoate Exposure-Induced Meiotic and Developmental Defects of Porcine Oocytes. Animals (Basel) 2022; 12:ani12070832. [PMID: 35405822 PMCID: PMC8997005 DOI: 10.3390/ani12070832] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/20/2022] [Accepted: 03/23/2022] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Environmental pollution poses concerns for public health. Dimethoate is a pesticide widely used in agricultural fields and home gardens. Recent studies have shown that dimethoate exposure impaired reproductive functions in male and female animals. However, whether dimethoate exposure affects oocyte maturation and how to reduce the toxicity of dimethoate remain unclear. Here, we showed that dimethoate exposure impaired nuclear and cytoplasmic maturation of porcine oocytes. Melatonin supplementation restored the meiotic maturation of dimethoate-exposed oocytes by suppressing the generation of excessive reactive oxygen species and autophagy and DNA damage accumulation. Therefore, melatonin counteracts the toxic effects of dimethoate exposure on porcine oocyte maturation. These findings imply that melatonin could be a promising agent in improving the quality of dimethoate-exposed oocytes from humans and animals. Abstract Dimethoate (DT) is an environmental pollutant widely used in agricultural fields and home gardens. Studies have shown that exposure to DT causes reproductive defects in both male and female animals. However, the effects of DT exposure on oocyte maturation and the approach to counteract it are not yet known. Here, we investigated the toxicity of DT on porcine oocyte maturation and the protective effects of melatonin (MT) on DT-exposed oocytes. DT exposure with 1.5 mM partially inhibited cumulus cell expansion and significantly reduced the rate of first polar body extrusion (pb1) during oocyte maturation. Parthenogenetically activated embryos derived from DT-exposed oocytes could not develop to the 2-cell and blastocyst stage. Furthermore, DT exposure led to a significant increase in the rates of misaligned chromosomes, disorganized spindles, and abnormal actin assembly. DT exposure severely disrupted the distribution patterns of mitochondria in oocytes but did not change the subcellular localizations of cortical granules. Importantly, MT supplementation rescued the meiotic and developmental defects of DT-exposed oocytes through repressing the generation of excessive reactive oxygen species (ROS) and autophagy, and DNA damage accumulation. These results demonstrate that melatonin protects against meiotic defects induced by DT during porcine oocyte maturation.
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Chromosome Segregation in the Oocyte: What Goes Wrong during Aging. Int J Mol Sci 2022; 23:ijms23052880. [PMID: 35270022 PMCID: PMC8911062 DOI: 10.3390/ijms23052880] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 02/22/2022] [Accepted: 03/05/2022] [Indexed: 12/13/2022] Open
Abstract
Human female fertility and reproductive lifespan decrease significantly with age, resulting in an extended post-reproductive period. The central dogma in human female reproduction contains two important aspects. One is the pool of oocytes in the human ovary (the ovarian reserve; approximately 106 at birth), which diminishes throughout life until menopause around the age of 50 (approximately 103 oocytes) in women. The second is the quality of oocytes, including the correctness of meiotic divisions, among other factors. Notably, the increased rate of sub- and infertility, aneuploidy, miscarriages, and birth defects are associated with advanced maternal age, especially in women above 35 years of age. This postponement is also relevant for human evolution; decades ago, the female aging-related fertility drop was not as important as it is today because women were having their children at a younger age. Spindle assembly is crucial for chromosome segregation during each cell division and oocyte maturation, making it an important event for euploidy. Consequently, aberrations in this segregation process, especially during the first meiotic division in human eggs, can lead to implantation failure or spontaneous abortion. Today, human reproductive medicine is also facing a high prevalence of aneuploidy, even in young females. However, the shift in the reproductive phase of humans and the strong increase in errors make the problem much more dramatic at later stages of the female reproductive phase. Aneuploidy in human eggs could be the result of the non-disjunction of entire chromosomes or sister chromatids during oocyte meiosis, but partial or segmental aneuploidies are also relevant. In this review, we intend to describe the relevance of the spindle apparatus during oocyte maturation for proper chromosome segregation in the context of maternal aging and the female reproductive lifespan.
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Shan MM, Zou YJ, Pan ZN, Zhang HL, Xu Y, Ju JQ, Sun SC. Kinesin motor KIFC1 is required for tubulin acetylation and actin-dependent spindle migration in mouse oocyte meiosis. Development 2022; 149:274327. [DOI: 10.1242/dev.200231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 01/18/2022] [Indexed: 11/20/2022]
Abstract
ABSTRACT
Mammalian oocyte maturation is a unique asymmetric division, which is mainly because of actin-based spindle migration to the cortex. In the present study, we report that a kinesin motor KIFC1, which is associated with microtubules for the maintenance of spindle poles in mitosis, is also involved in actin dynamics in murine oocyte meiosis, co-localizing with microtubules during mouse oocyte maturation. Depletion of KIFC1 caused the failure of polar body extrusion, and we found that meiotic spindle formation and chromosome alignment were disrupted. This might be because of the effects of KIFC1 on HDAC6 and NAT10-based tubulin acetylation, which further affected microtubule stability. Mass spectroscopy analysis revealed that KIFC1 also associated with several actin nucleation factors and we found that KIFC1 was essential for the distribution of actin filaments, which further affected spindle migration. Depletion of KIFC1 leaded to aberrant expression of formin 2 and the ARP2/3 complex, and endoplasmic reticulum distribution was also disturbed. Exogenous KIFC1 mRNA supplement could rescue these defects. Taken together, as well as its roles in tubulin acetylation, our study reported a previously undescribed role of kinesin KIFC1 on the regulation of actin dynamics for spindle migration in mouse oocytes.
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Affiliation(s)
- Meng-Meng Shan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yuan-Jing Zou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhen-Nan Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hao-Lin Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yi Xu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Jia-Qian Ju
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shao-Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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