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Ma M, Zhang L, Liu Z, Teng Y, Li M, Peng X, An L. Effect of blastocyst development on hatching and embryo implantation. Theriogenology 2024; 214:66-72. [PMID: 37857152 DOI: 10.1016/j.theriogenology.2023.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
The mammalian zygote, formed after a sperm fertilizes an egg, undergoes several rounds of mitosis and morphogenesis to form the blastocyst. During the peri-implantation period, the blastocyst hatches out of the zona pellucida (ZP) and invades the receptive uterine endometrium. This process promotes maternal-fetal dialogue at the physiological and molecular level, thereby initiating the implantation process. Blastocyst hatching is a consequence of elevated osmotic pressure due to active Na+/K+ ion transporter in the blastocyst cavity, as well as proteases produced by trophectoderm (TE) that hydrolyze the ZP. This review summarizes the process underpinning blastocyst hatching, such as the hatching schedule, the location of TEs during initial hatching out of the ZP, the molecules involved in blastocyst hatching, and how these processes affect implantation events. Additionally, we focus on identifying crucial molecules that may influence the quality of implantation and predict the outcome of embryo implantation. Further understanding the mechanism of these molecules may help us to improve the efficiency of Assisted reproductive technology (ART) in livestock breeding. This review provides insight into embryonic development, specifically during the short-term process of blastocyst hatching and its effects on the following implantation.
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Affiliation(s)
- Meixiang Ma
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Liang Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Zihan Liu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Yadi Teng
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Miaolong Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Xinrong Peng
- Institute of Animal Biotechnology, Xinjiang Academy of Animal Science, Urumqi, 830011, China.
| | - Liyou An
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China.
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Pérez-Ruiz I, Ruiz-Sanz JI, Hérnandez ML, Navarro R, Ferrando M, Larreategui Z, Ruiz-Larrea MB. Evidence of Paraoxonases 1, 2, and 3 Expression in Human Ovarian Granulosa Cells. Antioxidants (Basel) 2021; 10:antiox10101504. [PMID: 34679639 PMCID: PMC8532983 DOI: 10.3390/antiox10101504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/05/2021] [Accepted: 09/20/2021] [Indexed: 12/23/2022] Open
Abstract
Increasing evidence suggests that the antioxidant paraoxonase proteins, PON1, PON2, and PON3, have a role in reproduction and may be synthesized by ovarian cells. The aim of this work was to investigate whether human ovarian granulosa cells (GC) express paraoxonases 1, 2, and 3 (PON1, PON2, and PON3) at both the transcriptional and protein levels. Cells were purified from follicle samples of women undergoing ovarian stimulation at oocyte retrieval. We analyzed mRNA by polymerase chain reaction using specific primers for the different variants and quantified the proteins by Western blot using commercially available human recombinant PON proteins as standards. The protein subcellular distribution was determined by immunofluorescence and confocal microscopy and the cell cycles by flow cytometry. Thymidine was used for cellular synchronization at G1/S. Human hepatoma HepG2 and immortalized granulosa COV434 cell lines were used to optimize methodologies. mRNAs from PON1, the two variants of PON2, and PON3 were detected in GC. The cells actively secreted PON1 and PON3, as evidenced by the protein detection in the incubation medium. PON1 and PON3 were mainly distributed in the cytoplasm and notably in the nucleus, while PON2 colocalized with mitochondria. Subcellular nucleo-cytoplasmic distribution of PON1 was associated with the cell cycle. This is the first evidence describing the presence of mRNAs and proteins of the three members of the PON family in human ovarian GC. This study provides the basis of further research to understand the role of these proteins in GC, which will contribute to a better understanding of the reproduction process.
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Affiliation(s)
- Irantzu Pérez-Ruiz
- Free Radicals and Oxidative Stress (FROS) Research Group of the Department of Physiology, Medicine and Nursing School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.P.-R.); (J.-I.R.-S.); (M.-L.H.); (R.N.)
- BioCruces Health Research Institute, Plaza de Cruces s/n, 48903 Barakaldo, Spain
| | - José-Ignacio Ruiz-Sanz
- Free Radicals and Oxidative Stress (FROS) Research Group of the Department of Physiology, Medicine and Nursing School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.P.-R.); (J.-I.R.-S.); (M.-L.H.); (R.N.)
- BioCruces Health Research Institute, Plaza de Cruces s/n, 48903 Barakaldo, Spain
| | - María-Luisa Hérnandez
- Free Radicals and Oxidative Stress (FROS) Research Group of the Department of Physiology, Medicine and Nursing School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.P.-R.); (J.-I.R.-S.); (M.-L.H.); (R.N.)
- BioCruces Health Research Institute, Plaza de Cruces s/n, 48903 Barakaldo, Spain
| | - Rosaura Navarro
- Free Radicals and Oxidative Stress (FROS) Research Group of the Department of Physiology, Medicine and Nursing School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.P.-R.); (J.-I.R.-S.); (M.-L.H.); (R.N.)
- BioCruces Health Research Institute, Plaza de Cruces s/n, 48903 Barakaldo, Spain
| | - Marcos Ferrando
- Valencian Institute of Infertility (IVI-RMA)-Bilbao, 48940 Leioa, Spain; (M.F.); (Z.L.)
| | - Zaloa Larreategui
- Valencian Institute of Infertility (IVI-RMA)-Bilbao, 48940 Leioa, Spain; (M.F.); (Z.L.)
| | - María-Begoña Ruiz-Larrea
- Free Radicals and Oxidative Stress (FROS) Research Group of the Department of Physiology, Medicine and Nursing School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (I.P.-R.); (J.-I.R.-S.); (M.-L.H.); (R.N.)
- BioCruces Health Research Institute, Plaza de Cruces s/n, 48903 Barakaldo, Spain
- Correspondence: ; Tel.: +34-946-012-829
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Lubelsky Y, Zuckerman B, Ulitsky I. High-resolution mapping of function and protein binding in an RNA nuclear enrichment sequence. EMBO J 2021; 40:e106357. [PMID: 33938020 PMCID: PMC8204871 DOI: 10.15252/embj.2020106357] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 03/14/2021] [Accepted: 03/24/2021] [Indexed: 01/04/2023] Open
Abstract
The functions of long RNAs, including mRNAs and long noncoding RNAs (lncRNAs), critically depend on their subcellular localization. The identity of the sequences that dictate subcellular localization and their high-resolution anatomy remain largely unknown. We used a suite of massively parallel RNA assays and libraries containing thousands of sequence variants to pinpoint the functional features within the SIRLOIN element, which dictates nuclear enrichment through hnRNPK recruitment. In addition, we profiled the endogenous SIRLOIN RNA-nucleoprotein complex and identified the nuclear RNA-binding proteins SLTM and SNRNP70 as novel SIRLOIN binders. Taken together, using massively parallel assays, we identified the features that dictate binding of hnRNPK, SLTM, and SNRNP70 to SIRLOIN and found that these factors are jointly required for SIRLOIN activity. Our study thus provides a roadmap for high-throughput dissection of functional sequence elements in long RNAs.
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Affiliation(s)
- Yoav Lubelsky
- Department of Biological RegulationWeizmann Institute of ScienceRehovotIsrael
| | - Binyamin Zuckerman
- Department of Biological RegulationWeizmann Institute of ScienceRehovotIsrael
| | - Igor Ulitsky
- Department of Biological RegulationWeizmann Institute of ScienceRehovotIsrael
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