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Li YM, Chung YL, Wu YF, Wang CK, Chen CM, Chen YH. Maternal exposure to hyperbaric oxygen at the preimplantation stages increases apoptosis and ectopic Cdx2 expression and decreases Oct4 expression in mouse blastocysts via Nrf2-Notch1 upregulation and Nf2 downregulation. Dev Dyn 2024; 253:467-489. [PMID: 37850827 DOI: 10.1002/dvdy.671] [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: 06/25/2023] [Revised: 09/21/2023] [Accepted: 10/07/2023] [Indexed: 10/19/2023] Open
Abstract
BACKGROUND The environmental oxygen tension has been reported to impact the blastocyst quality and cell numbers in the inner cell mass (ICM) during human and murine embryogenesis. While the molecular mechanisms leading to increased ICM cell numbers and pluripotency gene expression under hypoxia have been deciphered, it remains unknown which regulatory pathways caused the underweight fetal body and overweight placenta after maternal exposure to hyperbaric oxygen (HBO). RESULTS The blastocysts from the HBO-exposed pregnant mice revealed significantly increased signals of reactive oxygen species (ROS) and nuclear Nrf2 staining, decreased Nf2 and Oct4 expression, increased nuclear Tp53bp1 and active caspase-3 staining, and ectopic nuclear signals of Cdx2, Yap, and the Notch1 intracellular domain (N1ICD) in the ICM. In the ICM of the HBO-exposed blastocysts, both Nf2 cDNA microinjection and Nrf2 shRNA microinjection significantly decreased the ectopic nuclear expression of Cdx2, Tp53bp1, and Yap whereas increased Oct4 expression, while Nrf2 shRNA microinjection also significantly decreased Notch1 mRNA levels and nuclear expression of N1ICD and active caspase-3. CONCLUSION We show for the first time that maternal exposure to HBO at the preimplantation stage induces apoptosis and impairs ICM cell specification via upregulating Nrf2-Notch1-Cdx2 expression and downregulating Nf2-Oct4 expression.
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Grants
- MAB-108-027 Medical Affairs Bureau, Ministry of National Defense, R.O.C., Taiwan
- MAB-109-029 Medical Affairs Bureau, Ministry of National Defense, R.O.C., Taiwan
- MND-MAB-110-031 Medical Affairs Bureau, Ministry of National Defense, R.O.C., Taiwan
- MND-MAB-C06-111022 Medical Affairs Bureau, Ministry of National Defense, R.O.C., Taiwan
- MND-MAB-C14-112058 Medical Affairs Bureau, Ministry of National Defense, R.O.C., Taiwan
- MOST-111-2635-B-016-002 Ministry of Science and Technology, Taiwan
- TSGH-D-109177 Tri-Service General Hospital in Taiwan, R.O.C.
- TSGH-E-109261 Tri-Service General Hospital in Taiwan, R.O.C.
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Affiliation(s)
- Yu-Ming Li
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, North Carolina, USA
- Department of Internal Medicine, Taichung Veterans General Hospital, Taichung City, Taiwan
| | - Yu Lang Chung
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei City, Taiwan
| | - Yung-Fu Wu
- Department of Medical Research, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan
| | - Chien-Kuo Wang
- Department of Medical Research, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan
| | - Chieh-Min Chen
- Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei City, Taiwan
| | - Yi-Hui Chen
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei City, Taiwan
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Yu T, Zhang C, Song W, Zhao X, Cheng Y, Liu J, Su J. Single-cell RNA-seq and single-cell bisulfite-sequencing reveal insights into yak preimplantation embryogenesis. J Biol Chem 2024; 300:105562. [PMID: 38097189 PMCID: PMC10821408 DOI: 10.1016/j.jbc.2023.105562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 11/17/2023] [Accepted: 12/03/2023] [Indexed: 01/13/2024] Open
Abstract
Extensive epigenetic reprogramming occurs during preimplantation embryonic development. However, the impact of DNA methylation in plateau yak preimplantation embryos and how epigenetic reprogramming contributes to transcriptional regulatory networks are unclear. In this study, we quantified gene expression and DNA methylation in oocytes and a series of yak embryos at different developmental stages and at single-cell resolution using single-cell bisulfite-sequencing and RNA-seq. We characterized embryonic genome activation and maternal transcript degradation and mapped epigenetic reprogramming events critical for embryonic development. Through cross-species transcriptome analysis, we identified 31 conserved maternal hub genes and 39 conserved zygotic hub genes, including SIN3A, PRC1, HDAC1/2, and HSPD1. Notably, by combining single-cell DNA methylation and transcriptome analysis, we identified 43 candidate methylation driver genes, such as AURKA, NUSAP1, CENPF, and PLK1, that may be associated with embryonic development. Finally, using functional approaches, we further determined that the epigenetic modifications associated with the histone deacetylases HDAC1/2 are essential for embryonic development and that the deubiquitinating enzyme USP7 may affect embryonic development by regulating DNA methylation. Our data represent an extensive resource on the transcriptional dynamics of yak embryonic development and DNA methylation remodeling, and provide new insights into strategies for the conservation of germplasm resources, as well as a better understanding of mammalian early embryonic development that can be applied to investigate the causes of early developmental disorders.
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Affiliation(s)
- Tong Yu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Chengtu Zhang
- Academician Zhang Yong Innovation Center, Xining Animal Disease Control Center, Xining, Qinghai, China
| | - Weijia Song
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Xinyi Zhao
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuyao Cheng
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jun Liu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.
| | - Jianmin Su
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.
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Chen R, Deng H, Zou L. Analysis of Bulk Transcriptome Sequencing Data and in vitro Experiments Reveal SIN3A as a Potential Target for Diabetic Foot Ulcer. Diabetes Metab Syndr Obes 2023; 16:4119-4132. [PMID: 38145255 PMCID: PMC10740743 DOI: 10.2147/dmso.s439924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/06/2023] [Indexed: 12/26/2023] Open
Abstract
Background Diabetic foot ulcers (DFUs) represent a severe complication of diabetes associated with reduced quality of life, lower limb amputations, hospitalizations, increased incidence, and mortality. Importantly, a significant number of pathogenic genes remain unexplored in DFUs. Methods A series of bioinformatics analyses were performed on publicly available bulk transcriptome sequencing datasets GSE134431 and GSE80178 to explore the transcriptomic changes in DFUs and select core genes for in vitro functional validation. In a focused examination, the differential expression analysis unveiled distinctions in gene expression patterns between DFUs and non-ulcerated diabetic skin tissues. Enriched functional annotations of differentially expressed genes were explored using the DAVID online tool. Protein-protein interaction analysis was conducted to investigate interactions among differentially expressed genes and select core genes. Knockdown or overexpression of core genes in HaCaT keratinocytes was performed to assess their impact on cell proliferation and migration. Results Ten core genes were identified. Cell Counting Kit-8 (CCK-8) and scratch assays demonstrated that downregulation of the core gene SIN3A significantly inhibited the migration and proliferation of HaCaT keratinocytes, while overexpression of SIN3A reversed the high-glucose-induced suppression of HaCaT cell viability and migration. Conclusion SIN3A expression is downregulated in DFUs. In vitro, SIN3A promotes the proliferation and migration of HaCaT keratinocytes, suggesting it may be a potential therapeutic target for DFUs.
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Affiliation(s)
- Ran Chen
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Haibo Deng
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
| | - Lijun Zou
- Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People’s Republic of China
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Cui L, Fang L, Zhuang L, Shi B, Lin CP, Ye Y. Sperm-borne microRNA-34c regulates maternal mRNA degradation and preimplantation embryonic development in mice. Reprod Biol Endocrinol 2023; 21:40. [PMID: 37101140 PMCID: PMC10131327 DOI: 10.1186/s12958-023-01089-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 04/05/2023] [Indexed: 04/28/2023] Open
Abstract
BACKGROUND Studies have shown that sperm-borne microRNAs (miRNAs) are involved in mammalian preimplantation embryonic development. In humans, spermatozoan miR-34c levels are correlated with in vitro fertilization outcomes, such as embryo quality and the clinical pregnancy and live birth rates. In rabbits and cows, miR-34c improves the developmental competence of embryos generated by somatic cell nuclear transfer. However, the mechanisms underlying the regulation of embryonic development by miR-34c remain unknown. METHODS Female C57BL/6 mice (6-8 weeks old) were superovulated, and pronucleated zygotes were collected and microinjected with an miR-34c inhibitor or a negative-control RNA. The embryonic development of the microinjected zygotes was evaluated, and the messenger RNA (mRNA) expression profiles of the embryos at the two-cell, four-cell and blastocyst stages (five embryos per group) were determined by RNA sequencing analysis. Gene expression levels were verified by reverse transcription-quantitative polymerase chain reaction. Cluster analysis and heat map visualization were performed to detect differentially expressed mRNAs. Pathway and process enrichment analyses were performed using ontology resources. Differentially expressed mRNAs were systematically analyzed using the Search Tool for the Retrieval of Interacting Genes/Proteins database to determine their biological functions. RESULTS Embryonic developmental potential was significantly reduced in zygotes microinjected with the miR-34c inhibitor compared with those microinjected with a negative-control RNA. Two-cell stage embryos microinjected with an miR-34c inhibitor presented altered transcriptomic profiles, with upregulated expression of maternal miR-34c target mRNAs and classical maternal mRNAs. Differentially expressed transcripts were mainly of genes associated with lipid metabolism and cellular membrane function at the two-cell stage, with cell-cycle phase transition and energy metabolism at the four-cell stage; and with vesicle organization, lipid biosynthetic process and endomembrane system organization at the blastocyst stage. We also showed that genes related to preimplantation embryonic development, including Alkbh4, Sp1, Mapk14, Sin3a, Sdc1 and Laptm4b, were significantly downregulated after microinjection of an miR-34c inhibitor. CONCLUSIONS Sperm-borne miR-34c may regulate preimplantation embryonic development by affecting multiple biological processes, such as maternal mRNA degradation, cellular metabolism, cell proliferation and blastocyst implantation. Our data demonstrate the importance of sperm-derived miRNAs in the development of preimplantation embryos.
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Affiliation(s)
- Long Cui
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Li Fang
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Lili Zhuang
- Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200041, China
| | - Biwei Shi
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Chao-Po Lin
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yinghui Ye
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China.
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Sun H, Sun G, Zhang H, An H, Guo Y, Ge J, Han L, Zhu S, Tang S, Li C, Xu C, Guo X, Wang Q. Proteomic Profiling Reveals the Molecular Control of Oocyte Maturation. Mol Cell Proteomics 2022; 22:100481. [PMID: 36496143 PMCID: PMC9823227 DOI: 10.1016/j.mcpro.2022.100481] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 10/31/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022] Open
Abstract
Meiotic maturation is an intricate and precisely regulated process orchestrated by various pathways and numerous proteins. However, little is known about the proteome landscape during oocytes maturation. Here, we obtained the temporal proteomic profiles of mouse oocytes during in vivo maturation. We successfully quantified 4694 proteins from 4500 oocytes in three key stages (germinal vesicle, germinal vesicle breakdown, and metaphase II). In particular, we discovered the novel proteomic features during oocyte maturation, such as the active Skp1-Cullin-Fbox pathway and an increase in mRNA decay-related proteins. Using functional approaches, we further identified the key factors controlling the histone acetylation state in oocytes and the vital proteins modulating meiotic cell cycle. Taken together, our data serve as a broad resource on the dynamics occurring in oocyte proteome and provide important knowledge to better understand the molecular mechanisms during germ cell development.
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Affiliation(s)
- Hongzheng Sun
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Guangyi Sun
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Haotian Zhang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Huiqing An
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Yueshuai Guo
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Juan Ge
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Longsen Han
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Shuai Zhu
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Shoubin Tang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Congyang Li
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Chen Xu
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China; Department of Histology and Embryology, Nanjing Medical University, Nanjing, China.
| | - Qiang Wang
- State Key Laboratory of Reproductive Medicine, Suzhou Municipal Hospital, Nanjing Medical University, Nanjing, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
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6
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Zhang D, Zhou Y, Huang R, Zhai Y, Wu D, An X, Zhang S, Shi L, Li Q, Kong X, Yu H, Li Z. LncRNA affects epigenetic reprogramming of porcine embryo development by regulating global epigenetic modification and the downstream gene SIN3A. Front Physiol 2022; 13:971965. [PMID: 36187791 PMCID: PMC9523245 DOI: 10.3389/fphys.2022.971965] [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: 06/17/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
The study of preimplantation development is of great significance to reproductive biology and regenerative medicine. With the development of high-throughput deep sequencing technology, it has been found that lncRNAs play a very important role in the regulation of embryonic development. In this study, key lncRNAs that regulate embryonic development were screened by analyzing the expression pattern of lncRNAs in porcine in vivo fertilization (IVV) embryos. By knocking down lncRNA expression in in vitro fertilization (IVF) embryos, we investigated its function and mechanism of regulating embryonic development. The results showed that the expression pattern of lncRNA was consistent with the time of gene activation. The lncRNAs were highly expressed in the 4-cell to blastocyst stage but barely expressed in the oocytes and 2-cell stage. So we speculated this part of lncRNAs may regulate gene expression. The lncRNA LOC102165808 (named lncT because the gene near this lncRNA is TFAP2C) was one of them. The knockdown (KD) of lncT inhibited embryonic development, resulting in decreased H3K4me3, H3K4me2, and H3K9me3, and increased DNA methylation. Meanwhile, RNAseq showed SIN3A was the top decreased gene in lncT-KD embryos. There was a severe blastocyst formation defect in SIN3A-KD embryos. Both lncT and SIN3A could affect NANOG and induce more cell apoptosis. In conclusion, the knockdown of lncT inhibits embryonic development by regulating H3K4me3, H3K4me2, DNA methylation, pluripotency gene, and apoptosis, and SIN3A is one of the downstream genes of lncT in regulating embryonic development.
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Affiliation(s)
- Daoyu Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
| | - Yongfeng Zhou
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
| | - Rong Huang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
| | - Yanhui Zhai
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
| | - Di Wu
- Department of Emergency Medicine, First Hospital, Jilin University, Changchun, China
| | - Xinglan An
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
| | - Sheng Zhang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
| | - Lijing Shi
- College of Animal Science, Jilin University, Changchun, China
| | - Qi Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
| | - Xiangjie Kong
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
| | - Hao Yu
- College of Animal Science, Jilin University, Changchun, China
| | - Ziyi Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, First Hospital, Jilin University, Changchun, China
- *Correspondence: Ziyi Li,
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Transcriptome Analysis of Schwann Cells at Various Stages of Myelination Implicates Chromatin Regulator Sin3A in Control of Myelination Identity. Neurosci Bull 2022; 38:720-740. [DOI: 10.1007/s12264-022-00850-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 12/13/2021] [Indexed: 10/18/2022] Open
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Zhang Y, Zhang J, Sun C, Wu F. Identification of the occurrence and potential mechanisms of heterotopic ossification associated with 17-beta-estradiol targeting MKX by bioinformatics analysis and cellular experiments. PeerJ 2022; 9:e12696. [PMID: 35036166 PMCID: PMC8734462 DOI: 10.7717/peerj.12696] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/06/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Tendon heterotopic ossification (HO) is a common condition occurring secondary to tendon injury or surgical trauma that significantly affects the patient's quality of life. The treatment of tendon HO remains challenging due to a lack of clarity regarding the pathological mechanism. Mohawk (MKX) is a key factor in preventing tendon HO; however, its upstream regulatory mechanism remains to be understood. This study aimed to identify potential compounds that target and regulate MKX and explore their functional mechanisms. METHODS Bioinformatics analysis of MKX-related compounds and proteins was performed based on data from the STITCH and OncoBinder databases. Subsequently, the SymMap database was used to study MKX-related traditional Chinese medicine drugs and symptoms. Next, the OncoBinder genomic and proteomic discovery model was applied to identify potential regulators of MKX. The analytical tool Expert Protein Analysis System for proteomics was used to predict the three-dimensional structure of MKX, and the AutoDockTools software was used to identify pockets of activity at potential sites for molecular docking. Furthermore, we evaluated the effect of different doses of 17-beta-estradiol on bone marrow-derived mesenchymal stem cells (BM-MSCs). RESULTS By predicting the three-dimensional structure of MKX and simulating molecular docking, Pro-Tyr and 17-beta-Estradiol were found to target and bind to MKX. Analysis of the STITCH and OncoBinder databases showed that MKX had a significant regulatory correlation with suppressor interacting 3 A/histone deacetylase 1 (SIN3A/HDAC1). The GO and KEGG pathway enrichment analysis revealed that the functions of MKX and its associated proteins were mainly enriched in osteogenic-related pathways. Assessment of the proliferation of BM-MSCs revealed that 17-beta-estradiol possibly upregulated the mRNA expression of the HDAC1-SIN3A/BMP pathway-related RUNX2, thereby promoting the proliferation of BM-MSCs. CONCLUSIONS The compounds Pro-Tyr and 17-beta-Estradiol may bind to MKX and thus affect the interaction of MKX with SIN3A/HDAC1.
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Affiliation(s)
- Yunpeng Zhang
- Department of surgery, Shanghai Fengxian District Central Hospital, Shanghai, China
| | - Jingwei Zhang
- Department of Orthopedics, Shanghai Fengxian District Central Hospital, Shanghai, China.,Shanghai University of Medicine & Health Sciences Affiliated Sixth People's Hospital South Campus, Shanghai, China
| | - Chenyu Sun
- Department of Internal Medicine, AMITA Health Saint Joseph Hospital Chicago, Chicago, Illinois, United States of America
| | - Fan Wu
- Department of surgery, Shanghai Fengxian District Central Hospital, Shanghai, China
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Xiao L, Dang Y, Hu B, Luo L, Zhao P, Wang S, Zhang K. Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development. Epigenetics 2021; 17:1205-1218. [PMID: 34709113 DOI: 10.1080/15592294.2021.1999006] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Preimplantation development is critical for reproductive successes in mammals. Thus, it is important to understand how preimplantation embryogenesis is regulated. As a key event of preimplantation development, epigenetic reprogramming has been widely studied, yet how epigenetic complexes regulate preimplantation development remains largely unknown. Retinoblastoma binding protein 4 (RBBP4) and 7 (RBBP7) are integral components of epigenetic complexes including SIN3A, NuRD, and CoREST. Here, we demonstrate that double knockdown of Rbbp4 and 7, but not individually, causes embryonic lethality during the morula-to-blastocyst transition. Mechanistically, depletion of RBBP4 and 7 results in dysregulation of genes related to cell cycle, lineage development, and regulation of transcription, which is accompanied by cell cycle block, disrupted lineage specification and chromatin structure. Interestingly, RBBP4/7 depletion leads to a dramatic increase in H3.3 and H3K27ac abundance during morula-to-blastocyst transition. ChIP-seq analysis in early embryos and embryonic stem cells reveals enrichment of H3.3 at the promoter regions of RBBP4/7 target genes. In summary, our studies demonstrate the compensatory role of RBBP4/7 and reveal its potential mechanisms in preimplantation development.Summary sentence:RBBP4 and RBBP7 play a compensatory role in regulating cell proliferation, apoptosis, and histone H3.3 deposition during preimplantation development.
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Affiliation(s)
- Lieying Xiao
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yanna Dang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Bingjie Hu
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lei Luo
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Panpan Zhao
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Shaohua Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Kun Zhang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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Miao X, Sun T, Barletta H, Mager J, Cui W. Loss of RBBP4 results in defective inner cell mass, severe apoptosis, hyperacetylated histones and preimplantation lethality in mice†. Biol Reprod 2021; 103:13-23. [PMID: 32285100 DOI: 10.1093/biolre/ioaa046] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/13/2020] [Accepted: 04/09/2020] [Indexed: 01/06/2023] Open
Abstract
Retinoblastoma-binding protein 4 (RBBP4) (also known as chromatin-remodeling factor RBAP48) is an evolutionarily conserved protein that has been involved in various biological processes. Although a variety of functions have been attributed to RBBP4 in vitro, mammalian RBBP4 has not been studied in vivo. Here we report that RBBP4 is essential during early mouse embryo development. Although Rbbp4 mutant embryos exhibit normal morphology at E3.5 blastocyst stage, they cannot be recovered at E7.5 early post-gastrulation stage, suggesting an implantation failure. Outgrowth (OG) assays reveal that mutant blastocysts cannot hatch from the zona or can hatch but then arrest without further development. We find that while there is no change in proliferation or levels of reactive oxygen species, both apoptosis and histone acetylation are significantly increased in mutant blastocysts. Analysis of lineage specification reveals that while the trophoblast is properly specified, both epiblast and primitive endoderm lineages are compromised with severe reductions in cell number and/or specification. In summary, these findings demonstrate the essential role of RBBP4 during early mammalian embryogenesis.
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Affiliation(s)
- Xiaosu Miao
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Tieqi Sun
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Holly Barletta
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Jesse Mager
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, 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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11
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Li S, Shi Y, Dang Y, Luo L, Hu B, Wang S, Wang H, Zhang K. NOTCH signaling pathway is required for bovine early embryonic development†. Biol Reprod 2021; 105:332-344. [PMID: 33763686 DOI: 10.1093/biolre/ioab056] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/04/2020] [Accepted: 03/17/2021] [Indexed: 12/28/2022] Open
Abstract
The NOTCH signaling pathway plays an important role in regulating various biological processes, including lineage specification and apoptosis. Multiple components of the NOTCH pathway have been identified in mammalian preimplantation embryos. However, the precise role of the NOTCH pathway in early embryonic development is poorly understood, especially in large animals. Here, we show that the expression of genes encoding key transcripts of the NOTCH pathway is dynamic throughout early embryonic development. We also confirm the presence of active NOTCH1 and RBPJ. By using pharmacological and RNA interference tools, we demonstrate that the NOTCH pathway is required for the proper development of bovine early embryos. This functional consequence could be partly attributed to the major transcriptional mediator, Recombination Signal Binding Protein For Immunoglobulin Kappa J Region (RBPJ), whose deficiency also compromised the embryo quality. Indeed, both NOTCH1 and RBPJ knockdown cause a significant increase of histone H3 serine 10 phosphorylation (pH3S10, a mitosis marker) positive blastomeres, suggesting a cell cycle arrest at mitosis. Importantly, RNA sequencing analyses reveal that either NOTCH1 or RBPJ depletion triggers a reduction in H1FOO that encodes the oocyte-specific linker histone H1 variant. Interestingly, depleting H1FOO results in detrimental effects on the developmental competence of early embryos, similar with NOTCH1 inhibition. Overall, our results reveal a crucial role for NOTCH pathway in regulating bovine preimplantation development, likely by controlling cell proliferation and maintaining H1FOO expression.
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Affiliation(s)
- Shuang Li
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yan Shi
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yanna Dang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lei Luo
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Bingjie Hu
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Shaohua Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Huanan Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Kun Zhang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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Luo L, Dang Y, Shi Y, Zhao P, Zhang Y, Zhang K. SIN3A Regulates Porcine Early Embryonic Development by Modulating CCNB1 Expression. Front Cell Dev Biol 2021; 9:604232. [PMID: 33692994 PMCID: PMC7937639 DOI: 10.3389/fcell.2021.604232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/20/2021] [Indexed: 11/13/2022] Open
Abstract
SIN3A is the central scaffold protein of the SIN3/histone deacetylase (HDAC) transcriptional repressor complex. SIN3A participates in the mouse preimplantation development by fine-tuning HDAC1 expression. However, it remains unresolved if this functional significance of SIN3A was conserved in other mammals. Herein, RNA-seq results show a large amount of SIN3A mRNA is present in oocytes and early embryos prior to embryonic genome activation and a low amount thereafter, suggesting a maternal origin of SIN3A in pigs, cattle, mice, and humans. Interestingly, immunofluorescence data show that SIN3A protein level peaks at four-cell stage in pigs compared with morula stage in cattle. SIN3A depletion in early embryos causes a developmental arrest at two-cell stage in pigs but does not affect bovine early embryonic development. In contrast with mouse data, SIN3A depletion results in only a slight decrease and even no difference in HDAC1 expression in porcine and bovine early embryos, respectively. In addition, HDAC1 knockdown does not cause two-cell block but leads to a reduced blastocyst rate. By using unbiased RNA-seq approach, we found that Cyclin B1 (CCNB1) transcript level is dramatically reduced. Moreover, CCNB1 knockdown results in a similar phenotype as SIN3A depletion. Injection of exogenous CCNB1 mRNA into SIN3A-depleted embryos could partly rescue embryonic development to pass two-cell stage. In conclusion, our results indicate SIN3A plays an essential role in porcine early embryonic development, which probably involves the regulation of CCNB1 expression.
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Affiliation(s)
- Lei Luo
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China.,Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yanna Dang
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yan Shi
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Panpan Zhao
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yunhai Zhang
- Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Kun Zhang
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
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Wang H, Wang L, Wang Z, Dang Y, Shi Y, Zhao P, Zhang K. The nucleolar protein NOP2 is required for nucleolar maturation and ribosome biogenesis during preimplantation development in mammals. FASEB J 2019; 34:2715-2729. [PMID: 31908012 DOI: 10.1096/fj.201902623r] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/05/2019] [Accepted: 12/06/2019] [Indexed: 01/08/2023]
Abstract
The maternal nucleolus plays an indispensable role in zygotic genome activation (ZGA) and early embryonic development in mice. During oocyte-to-embryo transition, the nucleolus is subject to substantial transformation. Despite the primary role of the nucleolus is ribosome biogenesis, accumulating evidence has uncovered its functions in various other cell processes. However, the regulation of nucleolar maturation and ribosome biogenesis and the molecules involved remain unclear during early embryonic development. In this study, we observed that nucleolar protein 2 (NOP2) is restrictedly localized within the nucleolus, first detected in the late two-cell embryos, and increases to a peak level at the eight-cell stage in mice. RNAi-mediated NOP2 depletion leads to a developmental arrest during the morula-to-blastocyst transition. RNA-seq analyses reveal that 208 genes are differentially expressed, including multiple lineage-specific genes and several genes encoding ribosome proteins. Indeed, we observe a failure of the first lineage specification with reduced TEA domain transcription factor 4(TEAD4) (trophectoderm-specific), tir na nog (NANOG), and kruppel-like factor 4 (KLF4) (inner cell mass-specific). Importantly, by Transmission Electron Microscopy (TEM), we noted a decrease in the ratio of the nucleolus size and an increase in the ratio of the size of the nucleolus precursor body, suggesting the nucleolar maturation is disrupted. Moreover, both qPCR and Fluorescence In Situ Hybridization (FISH) data showcase a significant decrease in the abundance of ribosome RNAs. Similarly, NOP2 depletion causes reduced developmental potential and decreased rRNA level in bovine early embryos, suggesting a functional conservation of NOP2 in mammals. Taken together, these results suggest that NOP2 is required for mammalian preimplantation development, presumably by regulating nucleolar maturation and ribosome biogenesis.
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Affiliation(s)
- Huanan Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lefeng Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zizengchen Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yanna Dang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yan Shi
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Panpan Zhao
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Kun Zhang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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