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Tang F, Hummitzsch K, Rodgers RJ. RNAseq analysis of oocyte maturation from the germinal vesicle stage to metaphase II in pig and human. PLoS One 2024; 19:e0305893. [PMID: 39121087 PMCID: PMC11315340 DOI: 10.1371/journal.pone.0305893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 06/06/2024] [Indexed: 08/11/2024] Open
Abstract
During maturation oocytes at the germinal vesicle (GV) stage progress to metaphase II (MII). However, during in vitro maturation a proportion often fail to progress. To understand these processes, we employed RNA sequencing to examine the transcriptome profile of these three groups of oocytes from the pig. We compared our findings with similar public oocyte data from humans. The transcriptomes in oocytes that failed to progress was similar to those that did. We found in both species, the most upregulated genes in MII oocytes were associated with chromosome segregation and cell cycle processes, while the most down regulated genes were relevant to ribosomal and mitochondrial pathways. Moreover, those genes involved in chromosome segregation during GV to MII transition were conserved in pig and human. We also compared MII and GV oocyte transcriptomes at the isoform transcript level in both species. Several thousands of genes (including DTNBP1, MAPK1, RAB35, GOLGA7, ATP1A1 and ATP2B1) identified as not different in expression at a gene transcript level were found to have differences in isoform transcript levels. Many of these genes were involved in ATPase-dependent or GTPase-dependent intracellular transport in pig and human, respectively. In conclusion, our study suggests the failure to progress to MII in vitro may not be regulated at the level of the genome and that many genes are differentially regulated at the isoform level, particular those involved ATPase- or GTPase-dependent intracellular transport.
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Affiliation(s)
- Feng Tang
- School of Biomedicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
| | - Katja Hummitzsch
- School of Biomedicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
| | - Raymond J. Rodgers
- School of Biomedicine, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
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Yuan Y, Wang J, Zhang D, Tang L, Duan L, Jiang X. Deciphering the Role of Shugoshin-Like Protein 1 in Lung Adenocarcinoma: A Comprehensive Analysis and In Vitro Study. Front Oncol 2022; 12:898920. [PMID: 35592680 PMCID: PMC9110828 DOI: 10.3389/fonc.2022.898920] [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: 03/18/2022] [Accepted: 03/29/2022] [Indexed: 12/03/2022] Open
Abstract
Shugoshin-like protein 1 (SGO1) has been characterized in its function in correct cell division and its role in centrosome cohesion in the nucleus. However, the underlying biological function and potential mechanisms of SGO1 driving the progression of lung adenocarcinoma remain unclear. In this study, we found that SGO1 was increased in LUAD tissues and cell lines. Upregulation of SGO1 expression was correlated with poor overall survival (OS), disease-free survival (DSS), and progression-free survival (PFS) in patients with LUAD. ROC curve analysis suggested that the AUC value of SGO1 was 0.983. Correlation analysis showed that SGO1 expression was related to immune infiltration in LUAD. Meanwhile, a potential ceRNA network was constructed to identify the lncRNA-MIR4435-2HG/miR-125a-5p/SGO1 regulatory axis in LUAD. Finally, we determine that SGO1 regulated the cell proliferation and cell apoptosis of lung adenocarcinoma in vitro. In conclusion, our data suggested that SGO1 could be a novel prognostic biomarker for lung adenocarcinoma.
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Affiliation(s)
- Yixiao Yuan
- Department of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Juan Wang
- Department of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Dahang Zhang
- Department of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lin Tang
- Department of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lincan Duan
- Department of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiulin Jiang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Kunming, China
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Rizzo M, du Preez N, Ducheyne KD, Deelen C, Beitsma MM, Stout TAE, de Ruijter-Villani M. The horse as a natural model to study reproductive aging-induced aneuploidy and weakened centromeric cohesion in oocytes. Aging (Albany NY) 2020; 12:22220-22232. [PMID: 33139583 PMCID: PMC7695376 DOI: 10.18632/aging.104159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 09/14/2020] [Indexed: 12/14/2022]
Abstract
Aneuploidy of meiotic origin is a major contributor to age-related subfertility and an increased risk of miscarriage in women. Although age-related aneuploidy has been studied in rodents, the mare may be a more appropriate animal model to study reproductive aging. Similar to women, aged mares show reduced fertility and an increased incidence of early pregnancy loss; however, it is not known whether aging predisposes to aneuploidy in equine oocytes. We evaluated the effect of advanced mare age on (1) gene expression for cohesin components, (2) incidence of aneuploidy and (3) chromosome centromere cohesion (measured as the distance between sister kinetochores) in oocytes matured in vitro. Oocytes from aged mares showed reduced gene expression for the centromere cohesion stabilizing protein, Shugoshin 1. Moreover, in vitro matured oocytes from aged mares showed a higher incidence of aneuploidy and premature sister chromatid separation, and weakened centromeric cohesion. We therefore propose the mare as a valid model for studying effects of aging on centromeric cohesion; cohesion loss predisposes to disintegration of bivalents and premature separation of sister chromatids during the first meiotic division, leading to embryonic aneuploidy; this probably contributes to the reduced fertility and increased incidence of pregnancy loss observed in aged mares.
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Affiliation(s)
- Marilena Rizzo
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
| | - Nikola du Preez
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
| | - Kaatje D. Ducheyne
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
- Sussex Equine Hospital, Ashington, RH20 3BB, United Kingdom
| | - Claudia Deelen
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
| | - Mabel M. Beitsma
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
| | - Tom A. E. Stout
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
- Department of Production Animal Studies, University of Pretoria, Pretoria, 0110, South Africa
| | - Marta de Ruijter-Villani
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
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Lu T, Zou X, Liu G, Deng M, Sun B, Guo Y, Liu D, Li Y. A Preliminary Study on the Characteristics of microRNAs in Ovarian Stroma and Follicles of Chuanzhong Black Goat during Estrus. Genes (Basel) 2020; 11:genes11090970. [PMID: 32825655 PMCID: PMC7564575 DOI: 10.3390/genes11090970] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/16/2020] [Accepted: 08/19/2020] [Indexed: 02/08/2023] Open
Abstract
microRNAs (miRNAs) play a significant role in ovarian follicular maturity, but miRNA expression patterns in ovarian stroma (OS), large follicles (LF), and small follicles (SF) have been rarely explored. We herein aimed to identify miRNAs, their target genes and signaling pathways, as well as their interaction networks in OS, LF, and SF of Chuanzhong black goats at the estrus phase using small RNA-sequencing. We found that the miRNA expression profiles of LF and SF were more similar than those of OS—32, 16, and 29 differentially expressed miRNAs were identified in OS vs. LF, OS vs. SF, and LF vs. SF, respectively. Analyses of functional enrichment and the miRNA-targeted gene interaction network suggested that miR-182 (SMC3), miR-122 (SGO1), and miR-206 (AURKA) were involved in ovarian organogenesis and hormone secretion by oocyte meiosis. Furthermore, miR-202-5p (EREG) and miR-485-3p (FLT3) were involved in follicular maturation through the MAPK signaling pathway, and miR-2404 (BMP7 and CDKN1C) played a key role in follicular development through the TGF-β signaling pathway and cell cycle; nevertheless, further research is warranted. To our knowledge, this is the first study to investigate miRNA expression patterns in OS, LF, and SF of Chuanzhong black goats during estrus. Our findings provide a theoretical basis to elucidate the role of miRNAs in follicular maturation. These key miRNAs might provide candidate biomarkers for the diagnosis of follicular maturation and will assist in developing new therapeutic targets for female goat infertility.
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Affiliation(s)
- Tingting Lu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (T.L.); (X.Z.); (G.L.); (M.D.); (B.S.); (Y.G.); (D.L.)
| | - Xian Zou
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (T.L.); (X.Z.); (G.L.); (M.D.); (B.S.); (Y.G.); (D.L.)
- State Key Laboratory of Livestock and Poultry Breeding, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Guangbin Liu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (T.L.); (X.Z.); (G.L.); (M.D.); (B.S.); (Y.G.); (D.L.)
| | - Ming Deng
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (T.L.); (X.Z.); (G.L.); (M.D.); (B.S.); (Y.G.); (D.L.)
| | - Baoli Sun
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (T.L.); (X.Z.); (G.L.); (M.D.); (B.S.); (Y.G.); (D.L.)
| | - Yongqing Guo
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (T.L.); (X.Z.); (G.L.); (M.D.); (B.S.); (Y.G.); (D.L.)
| | - Dewu Liu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (T.L.); (X.Z.); (G.L.); (M.D.); (B.S.); (Y.G.); (D.L.)
| | - Yaokun Li
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (T.L.); (X.Z.); (G.L.); (M.D.); (B.S.); (Y.G.); (D.L.)
- Correspondence: ; Tel.: +86-1862-019-3682
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Chen Q, Wan X, Chen Y, Liu C, Gu M, Wang Z. SGO1 induces proliferation and metastasis of prostate cancer through AKT-mediated signaling pathway. Am J Cancer Res 2019; 9:2693-2705. [PMID: 31911855 PMCID: PMC6943359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 10/09/2018] [Indexed: 06/10/2023] Open
Abstract
Although studies have revealed some of the pathological causes associated with prostate cancer progression, further studies are still needed. Shugoshin 1 (SGO1) is a protein essential for precise chromosome segregation during mitosis and meiosis. However, the role and mechanism of SGO1 in tumors and even prostate cancer is not completely clear. In this study, expression of SGO1 in human prostate tumors were higher than that of adjacent normal tissues and were positively correlated with the poor prognosis of prostate cancer patients. SGO1 expression levels are also higher in several prostate cancer cell lines. In cell experiments, knockdown of SGO1 reduced cell proliferation, migration, and invasion in vitro and in vivo, and also inhibited cell cycle progression of prostate cancer cells. In contrast, ectopic expression of SGO1 has the opposite effects. In addition, knockdown of SGO1 induces apoptosis in prostate cancer cells by promoting cleaved caspase-3, caspase-9, and PARP. Importantly SGO1 function is dependent on AKT. Inhibition of AKT activity by AKT inhibitor abolished the role of SGO1 overexpression in promoting cell proliferation and metastasis. Therefore, SGO1 promotes the proliferation and metastasis of prostate cancer through the AKT pathway, and can be considered as an effective candidate for developing an effective prostate cancer treatment strategy.
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Affiliation(s)
- Qi Chen
- Department of Urology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai, China
| | - Xiang Wan
- Department of Urology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai, China
| | - Yanbo Chen
- Department of Urology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai, China
| | - Chong Liu
- Department of Urology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai, China
| | - Meng Gu
- Department of Urology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai, China
| | - Zhong Wang
- Department of Urology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai, China
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Grishaeva TM, Kulichenko D, Bogdanov YF. Bioinformatical analysis of eukaryotic shugoshins reveals meiosis-specific features of vertebrate shugoshins. PeerJ 2016; 4:e2736. [PMID: 27917322 PMCID: PMC5134366 DOI: 10.7717/peerj.2736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/31/2016] [Indexed: 11/24/2022] Open
Abstract
Background Shugoshins (SGOs) are proteins that protect cohesins located at the centromeres of sister chromatids from their early cleavage during mitosis and meiosis in plants, fungi, and animals. Their function is to prevent premature sister-chromatid disjunction and segregation. The study focused on the structural differences among SGOs acting during mitosis and meiosis that cause differences in chromosome behavior in these two types of cell division in different organisms. Methods A bioinformatical analysis of protein domains, conserved amino acid motifs, and physicochemical properties of 32 proteins from 25 species of plants, fungi, and animals was performed. Results We identified a C-terminal amino acid motif that is highly evolutionarily conserved among the SGOs protecting centromere cohesion of sister chromatids in meiotic anaphase I, but not among mitotic SGOs. This meiotic motif is arginine-rich in vertebrates. SGOs differ in different eukaryotic kingdoms by the sets and locations of amino acid motifs and the number of α-helical regions in the protein molecule. Discussion These structural differences between meiotic and mitotic SGOs probably could be responsible for the prolonged SGOs resistance to degradation during meiotic metaphase I and anaphase I. We suggest that the “arginine comb” in C-end meiotic motifs is capable of interaction by hydrogen bonds with guanine bases in the minor groove of DNA helix, thus protecting SGOs from hydrolysis. Our findings support independent evolution of meiosis in different lineages of multicellular organisms.
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Affiliation(s)
- Tatiana M Grishaeva
- Laboratory of Cytogenetics, Department of Genomics and Human Genetics, N.I. Vavilov Institute of General Genetics , Moscow , Russia
| | - Darya Kulichenko
- Laboratory of Cytogenetics, Department of Genomics and Human Genetics, N.I. Vavilov Institute of General Genetics , Moscow , Russia
| | - Yuri F Bogdanov
- Laboratory of Cytogenetics, Department of Genomics and Human Genetics, N.I. Vavilov Institute of General Genetics , Moscow , Russia
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