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Sun Q, Yang Y, Zhang Y, Chen D, Zheng H, Qin G, Fu Q. Padi6 expression patterns in buffalo oocytes and preimplantation embryos. Anim Reprod 2024; 21:e20230146. [PMID: 38562607 PMCID: PMC10984561 DOI: 10.1590/1984-3143-ar2023-0146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/26/2024] [Indexed: 04/04/2024] Open
Abstract
The subcortical maternal complex, which consists of maternal-effect genes, plays a crucial role in the development of oocytes and preimplantation embryo until the activation of the zygote genome. One such gene, known as peptidyl-arginine deiminase VI (Padi6), is involved in the oocyte maturation, fertilization and embryonic development. However, the precise function of Padi6 gene in buffalo is still unclear and requires further investigation. In this study, the sequence, mRNA and protein expression patterns of Padi6 gene were analyzed in oocytes, preimplantation embryos and somatic tissues of buffalo. The coding sequence of gene was successfully cloned and characterized. Real-time quantitative PCR results indicated an absence of Padi6 transcripts in somatic tissues. Notably, the expression levels of Padi6 in oocytes showed an increased from the germinal vesicle stage to metaphase II stage, followed by a rapid decrease during the morula and blastocyst stages. Immunofluorescence analysis confirmed these findings, revealing a noticeable decline in protein expression levels. Our research provides the initial comprehensive expression profile of Padi6 in buffalo oocytes and preimplantation embryos, serving as a solid foundation for further investigations into the functionality of maternal-effect genes in buffalo.
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Affiliation(s)
- Qinqiang Sun
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Yuan Yang
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Yue Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Dongrong Chen
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Haiying Zheng
- Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Guangsheng Qin
- Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Qiang Fu
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
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Pervushin NV, Kopeina GS, Zhivotovsky B. Bcl-B: an "unknown" protein of the Bcl-2 family. Biol Direct 2023; 18:69. [PMID: 37899453 PMCID: PMC10614328 DOI: 10.1186/s13062-023-00431-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 10/31/2023] Open
Abstract
Bcl-B is a poorly understood protein of the Bcl-2 family that is highly expressed in many healthy tissues and tumor types. Bcl-B is considered an antiapoptotic protein, but many reports have revealed its contradictory roles in different cancer types. In this mini-review, we elucidate the functions of Bcl-B in normal conditions and various pathologies, its regulation of programmed cell death, its oncogene/oncosuppressor activity in tumorigenesis, its impact on drug-acquired resistance, and possible approaches to inhibit Bcl-B.
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Affiliation(s)
- N V Pervushin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, 119991, Russia
| | - G S Kopeina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia.
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, 119991, Russia.
| | - B Zhivotovsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia.
- Faculty of Medicine, MV Lomonosov Moscow State University, Moscow, 119991, Russia.
- Division of Toxicology, Institute of Environmental Medicine, Karolinska Institute, Box 210, Stockholm, 17177, Sweden.
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Liu Y, Xin J, Zhang S, Li Q, Wang W, Chen J, Ming X, Wu X, Cao X, Cui W, Wang H, Li W. Expression patterns and biological function of BCL2L10 during mouse preimplantation development. Gene Expr Patterns 2022; 46:119285. [PMID: 36341977 DOI: 10.1016/j.gep.2022.119285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 10/02/2022] [Accepted: 10/24/2022] [Indexed: 11/04/2022]
Abstract
BCL2-like 10 (BCL2L10) is abundantly expressed in mammalian oocytes and plays a crucial role in the completion of oocyte meiosis. However, the expression patterns of BCL2L10 and its biological functions during preimplantation development have not been well characterized. Here, we investigated the spatiotemporal expressions of Bcl2l10 during mouse preimplantation development using RT-qPCR and immunofluorescence and its biological function using siRNA and morpholino injection into pronuclear embryos. Results from RT-qPCR showed that Bcl2l10 was highly expressed in the metaphase Ⅱ-stage oocytes and pronuclear-stage embryos, but expression markedly decreased from the two-cell stage onwards and was no longer detected at the four-cell stage and beyond. Immunofluorescence staining showed that BCL2L10 was detectable throughout preimplantation development and localized in the cytoplasm and nuclei. Knocking down Bcl2l10 resulted in a reduced blastocyst formation rate (P < 0.01) and decreased expression of OCT4, NANOG, and SOX17 (P < 0.05). We concluded that the role of BCL2L10 is strongly associated with developmental competence of preimplantation mouse embryos.
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Affiliation(s)
- Yong Liu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China; Department of Veterinary and Animal Sciences, Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts Amherst, Amherst, MA, 01002, United States
| | - Jing Xin
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China
| | - Shengnan Zhang
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China
| | - Qingmei Li
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China
| | - Wenying Wang
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China
| | - Ji Chen
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China
| | - Xin Ming
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China
| | - Xiaoqing Wu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China
| | - Xinyan Cao
- Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, No.4899 Juye Street, Jingyue District, Changchun, 130112, China
| | - Wei Cui
- Department of Veterinary and Animal Sciences, Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts Amherst, Amherst, MA, 01002, United States
| | - Hongcheng Wang
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China; Linquan Modern Agricultural Technology Cooperation and Extension Service Center, The Anhui Agricultural University's Comprehensive Experimental Station in the Northwest of Anhui Province, Linquan, Anhui, 236400, China.
| | - Wenyong Li
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, College of Biological and Food Engineering, Fuyang Normal University, Fuyang, 236037, China.
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Huang X, Sun Q, Chen D, Yang W, Zhang J, Liu R, Zhang P, Huang L, Zhang M, Fu Q. Nlrp5 and Tle6 expression patterns in buffalo oocytes and preimplantation embryos. Reprod Domest Anim 2022; 57:481-488. [PMID: 35044003 DOI: 10.1111/rda.14084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/14/2022] [Indexed: 11/30/2022]
Abstract
Maternal-effect genes (MEGs) accumulate in oocytes during oogenesis and mediate the preimplantation embryo developmental program until activation of the zygote genome. Nlrp5 and Tle6 are required for normal preimplantation and embryonic development. However, the precise function of these MEGs in buffalo (Bubalus bubalis) remains to be elucidated. The aim of this study was to characterize Nlrp5 and Tle6 sequences, and analyze their mRNA and protein expression patterns in somatic tissues, oocytes, and preimplantation embryos of buffalo. The coding sequences of each gene were successfully cloned and characterized. Real-time quantitative reverse transcription PCR results revealed an absence of Nlrp5 or Tle6 transcripts in somatic tissues, with the exception of ovary. Expression levels of Nlrp5 and Tle6 in oocytes increased from the germinal vesicle stage to metaphase II stage, and then gradually decreased during morula and blastocyst stages. Protein expression patterns were confirmed by immunofluorescence analysis. This study lays a foundation for further validation of the function of MEGs in buffalo.
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Affiliation(s)
- Xingchen Huang
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Qinqiang Sun
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Dongrong Chen
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Weihan Yang
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Junjun Zhang
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Runfeng Liu
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Pengfei Zhang
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Liangfeng Huang
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Ming Zhang
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
| | - Qiang Fu
- State Key Laboratory of Subtropical Agro-Bioresource Conservation and Utilization, Nanning, Guangxi Province, P. R. China, 530004
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Huang D, Wang L, Talbot NC, Huang C, Pu L, Zhao X, Tian X, Zhang M, Tang Y. Analyzing bovine OCT4 and NANOG enhancer activity in pluripotent stem cells using fluorescent protein reporters. PLoS One 2018; 13:e0203923. [PMID: 30289916 DOI: 10.1371/journal.pone.0203923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 08/30/2018] [Indexed: 11/24/2022] Open
Abstract
Green fluorescent protein (GFP) reporters controlled by the regulatory region of OCT4 and NANOG—two master regulators for pluripotency are widely used in studies of pluripotent stem cell establishment and embryo development. Alongside the challenge in establishing bovine pluripotent stem cells, the application of bovine-specific gene reporters has rarely been explored. Using lentivirus-based GFP reporter, we investigated the upstream regulatory regions of bovine OCT4 and NANOG. These reporters show activity in both naïve- and primed-state pluripotency when infected into mouse and human embryonic stem cells (ESCs), respectively. Consistent with what is found in humans and mice, the bovine OCT4-distal enhancer (bOCT4-DE) but not the proximal enhancer (bOCT4-PE) region is preferentially activated in naïve-state pluripotency. Furthermore, the bOCT4-DE region is silenced upon conversion of naive-state ESCs into primed-state epiblast stem cells (EpiSCs). Co-infection of mouse fibroblasts with the reprograming factors for induced pluripotent stem cell (iPSC) induction leads to the generation of GFP positive colonies, demonstrating that these GFP reporters can serve as live indicators for induced pluripotent cell establishment. We further proved that the bovine OCT4 distal enhancer is active in bovine blastocysts. We established the lentiviral-based fluorescent reporters controlled by bovine OCT4 and NANOG enhancer sequences. These reporter constructs show activity in naïve- and primed-pluripotent states. These reporters may serve as versatile tools for bovine ESC/iPSC generation and identification, as well as for developmental studies of bovine embryos.
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