1
|
Ma C, Liu M, Feng W, Rao H, Zhang W, Liu C, Xu Y, Wang Z, Teng Y, Yang X, Ni L, Xu J, Gao W, Lu B, Li L. Loss of SETD2 aggravates colorectal cancer progression caused by SMAD4 deletion through the RAS/ERK signalling pathway. Clin Transl Med 2023; 13:e1475. [PMID: 37962020 PMCID: PMC10644329 DOI: 10.1002/ctm2.1475] [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: 06/15/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGOUND Colorectal cancer (CRC) is a complex, multistep disease that arises from the interplay genetic mutations and epigenetic alterations. The histone H3K36 trimethyltransferase SET domain-containing 2 (SETD2), as an epigenetic signalling molecule, has a 5% mutation rate in CRC. SETD2 expression is decreased in the development of human CRC and mice treated with Azoxymethane /Dextran sodium sulfate (AOM/DSS). Loss of SETD2 promoted CRC development. SMAD Family member 4 (SMAD4) has a 14% mutation rate in CRC, and SMAD4 ablation leads to CRC. The co-mutation of SETD2 and SMAD4 predicted advanced CRC. However, little is known on the potential synergistic effect of SETD2 and SMAD4. METHODS CRC tissues from mice and SW620 cells were used as research subjects. Clinical databases of CRC patients were analyzed to investigate the association between SETD2 and SMAD4. SETD2 and SMAD4 double-knockout mice were established to further investigate the role of SETD2 in SMAD4-deficient CRC. The intestinal epithelial cells (IECs) were isolated for RNA sequencing and chromatin immunoprecipitation sequencing (ChIP-seq) to explore the mechanism and the key molecules resulting in CRC. Molecular and cellular experiments were conducted to analyze the role of SETD2 in SMAD4-deficient CRC. Finally, rescue experiments were performed to confirm the molecular mechanism of SETD2 in the development of SMAD4-dificient CRC. RESULTS The deletion of SETD2 promotes the malignant progression of SMAD4-deficient CRC. Smad4Vil-KO ; Setd2Vil-KO mice developed a more severe CRC phenotype after AOM/DSS induction, with a larger tumour size and a more vigorous epithelial proliferation rate. Further mechanistic findings revealed that the loss of SETD2 resulted in the down-regulation of DUSP7, which is involved in the inhibition of the RAS/ERK signalling pathway. Finally, the ERK1/2 inhibitor SCH772984 significantly attenuated the progression of CRC in Smad4Vil-KO ;Setd2Vil-KO mice, and overexpression of DUSP7 significantly inhibited the proliferation rates of SETD2KO ; SMAD4KO SW620 cells. CONCLUSIONS Our results demonstrated that SETD2 inhibits the RAS/ERK signaling pathway by facilitating the transcription of DUSP7 in SMAD4-deficient CRC, which could provide a potential therapeutic target for the treatment of advanced CRC.
Collapse
Affiliation(s)
- Chunxiao Ma
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Min Liu
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Wenxin Feng
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Hanyu Rao
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Wei Zhang
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Changwei Liu
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Yue Xu
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Ziyi Wang
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Yan Teng
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein SciencesBeijing Institute of LifeomicsBeijingChina
| | - Xiao Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein SciencesBeijing Institute of LifeomicsBeijingChina
| | - Li Ni
- Department of NursingShanghai East Hospital, Tongji UniversityShanghaiChina
| | - Jin Xu
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Wei‐Qiang Gao
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| | - Bing Lu
- Department of General Surgery, Department of Colorectal Surgery, Shanghai East HospitalSchool of Medicine, Tongji UniversityShanghaiChina
| | - Li Li
- State Key Laboratory of Systems Medicine for CancerRenji‐Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine and School of Biomedical Engineering, Shanghai Jiao Tong UniversityShanghaiChina
- School of Biomedical Engineering and Med‐X Research Institute, Shanghai Jiao Tong UniversityShanghaiChina
| |
Collapse
|
2
|
Gao X. Identification of DUSP7 as an RNA Marker for Prognostic Stratification in Acute Myeloid Leukemia: Evidence from Large Population Cohorts. Genet Res (Camb) 2023; 2023:4348290. [PMID: 37538139 PMCID: PMC10396553 DOI: 10.1155/2023/4348290] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/03/2023] [Accepted: 07/16/2023] [Indexed: 08/05/2023] Open
Abstract
Background The problem of prognostic stratification in acute myeloid leukemia (AML) patients still has limitations. Methods The expression profile data and clinical features of AML patients were obtained from multiple publicly available sources, including GSE71014, TCGA-LAML, and TARGET-AML. Single-cell analysis was performed using the TISCH project. All the analysis was conducted in the R software. Results In our study, three public AML cohorts, GSE71014, TARGET-AML, and TCGA-AML, were selected. Then, we identified the prognosis-related molecules through bioinformatic analysis. Finally, the DUSP7 was noticed as a risk factor for AML patients, which has not been reported previously. Biological enrichment analysis and immune-related analysis were performed to illustrate the role of DUSP7 in AML. Single-cell analysis indicated that the DUSP7 was widely distributed in various cells, especially in monocyte/macrophages and malignant. Following this, a prognosis model based on DUSP7-derived genes was constructed, which showed a good prognosis prediction ability in all cohorts. Conclusions Our results preliminarily reveal the role and potential mechanism of DUSP7 in AML, providing direction for future research.
Collapse
Affiliation(s)
- Xin Gao
- Anhui Medical College, Hefei, China
| |
Collapse
|
3
|
Kałuzińska-Kołat Ż, Kołat D, Kośla K, Płuciennik E, Bednarek AK. Delineating the glioblastoma stemness by genes involved in cytoskeletal rearrangements and metabolic alterations. World J Stem Cells 2023; 15:302-322. [PMID: 37342224 PMCID: PMC10277965 DOI: 10.4252/wjsc.v15.i5.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 02/03/2023] [Accepted: 03/08/2023] [Indexed: 05/26/2023] Open
Abstract
Literature data on glioblastoma ongoingly underline the link between metabolism and cancer stemness, the latter is one responsible for potentiating the resistance to treatment, inter alia due to increased invasiveness. In recent years, glioblastoma stemness research has bashfully introduced a key aspect of cytoskeletal rearrangements, whereas the impact of the cytoskeleton on invasiveness is well known. Although non-stem glioblastoma cells are less invasive than glioblastoma stem cells (GSCs), these cells also acquire stemness with greater ease if characterized as invasive cells and not tumor core cells. This suggests that glioblastoma stemness should be further investigated for any phenomena related to the cytoskeleton and metabolism, as they may provide new invasion-related insights. Previously, we proved that interplay between metabolism and cytoskeleton existed in glioblastoma. Despite searching for cytoskeleton-related processes in which the investigated genes might have been involved, not only did we stumble across the relation to metabolism but also reported genes that were found to be implicated in stemness. Thus, dedicated research on these genes in GSCs seems justifiable and might reveal novel directions and/or biomarkers that could be utilized in the future. Herein, we review the previously identified cytoskeleton/metabolism-related genes through the prism of glioblastoma stemness.
Collapse
Affiliation(s)
- Żaneta Kałuzińska-Kołat
- Department of Experimental Surgery, Medical University of Lodz, Lodz 90-136, Lodzkie, Poland
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Damian Kołat
- Department of Experimental Surgery, Medical University of Lodz, Lodz 90-136, Lodzkie, Poland
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Katarzyna Kośla
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Elżbieta Płuciennik
- Department of Functional Genomics, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Andrzej K Bednarek
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| |
Collapse
|
4
|
Liu J, Yin Y, Ni J, Zhang P, Li WM, Liu Z. Dual Specific Phosphatase 7 Exacerbates Dilated Cardiomyopathy, Heart Failure, and Cardiac Death by Inactivating the ERK1/2 Signaling Pathway. J Cardiovasc Transl Res 2022; 15:1219-1238. [PMID: 35596107 DOI: 10.1007/s12265-022-10268-3] [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: 03/06/2022] [Accepted: 04/25/2022] [Indexed: 12/16/2022]
Abstract
Heart failure is one of the most common but complicated end-stage syndromes in clinical practice. Dilated cardiomyopathy is a myocardial structural abnormality that is associated with heart failure. Dual-specificity phosphatases (DUSPs) are a group of protein phosphatases that regulate signaling pathways in numerous diseases; however, their physiological and pathological impact on cardiovascular disease remains unknown. In the present study, we generated two transgenic mouse models, a DUSP7 knockout and a cardiac-specific DUSP7 overexpressor. Mice overexpressing DUSP7 showed an exacerbated disease phenotype, including severe dilated cardiomyopathy, heart failure, and cardiac death. We further demonstrated that high levels of DUSP7 inhibited ERK1/2 phosphorylation and influenced downstream c-MYC, c-FOS, and c-JUN gene expression but did not affect upstream activators. Taken together, our study reveals a novel molecular mechanism for DUSP7 and provides a new therapeutic target and clinical path to alleviate dilated cardiomyopathy and improve cardiac function.
Collapse
Affiliation(s)
- Jing Liu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yihen Yin
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
- Heart, Lung, and Blood Center, Pan-Vascular Research Institute, Tongji University School of Medicine, Shanghai, China
| | - Jing Ni
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Peiyu Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wei-Ming Li
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
- Heart, Lung, and Blood Center, Pan-Vascular Research Institute, Tongji University School of Medicine, Shanghai, China.
| | - Zheng Liu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
- Heart, Lung, and Blood Center, Pan-Vascular Research Institute, Tongji University School of Medicine, Shanghai, China.
- Cryo-electron Microscopy Center, Southern University of Science and Technology, Guangdong Province, Shenzhen, China.
| |
Collapse
|
5
|
Yang L, Ruan H, Ma S, Elokil AA, Li S. Transcriptome analysis and identification of genes associated with individual fertilization rate differences in hen infundibulum. Br Poult Sci 2022; 64:268-274. [PMID: 36416611 DOI: 10.1080/00071668.2022.2149320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
1. Fertilisation rate is closely related to the reproductive performance and economic status of chicken laying breeders. In this study, two flocks (n = 1,029 in population I and n = 358 in population II) in the later laying period were used for investigating the individual differences among population fertilisation rates (FRs).2. The funnel and distal parts of the infundibulum were collected from nine individuals (five with low FR and four with high FR from population II) and RNA-sequencing (RNA-seq) method was used to investigate the transcriptome differences in fertilisation. Differences in fertilisation regulation were investigated by comparing the different parts (funnel and distal) of the infundibulum between the low FR and high FR groups.3. There were notable individual FR differences in both categories. Some individuals had a relative high FR (≥90%) for a long time (>5 days after AI), contrarily, some individuals lost the ability to fertilise eggs in a very short time.4. Differentially expressed genes (DEGs), such as DUSP7, PPP1R3B, FYB, OVA, OVALX and OVALY may be associated with sperm functional regulation, fertilisation and early-stage fertilised ovum development processes. DEGs such as AVBD1, AVBD2, AVBD6, NFATC2 and BANK1 indicated a severe immune response to sperm survival and fertilisation in the oviduct.5. The results suggested that individual differences should be considered in the breeding and reproduction process. The DEGs identified in this study may promote our understanding of different fertilisation regulation in laying breeders.
Collapse
Affiliation(s)
- Liubin Yang
- College of Food Sciences & Technology (Ministry of Education), Huazhong Agricultural University, Wuhan, Hubei Province, China
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
| | - Hongji Ruan
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
| | - Shuai Ma
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
| | - Abdelmotaleb A. Elokil
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
- Department of Animal Production, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - Shijun Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei Province 430070, China
| |
Collapse
|
6
|
Sladeček S, Radaszkiewicz KA, Bőhmová M, Gybeľ T, Radaszkiewicz TW, Pacherník J. Dual specificity phosphatase 7 drives the formation of cardiac mesoderm in mouse embryonic stem cells. PLoS One 2022; 17:e0275860. [PMID: 36227898 PMCID: PMC9560500 DOI: 10.1371/journal.pone.0275860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 09/23/2022] [Indexed: 11/18/2022] Open
Abstract
Dual specificity phosphatase 7 (DUSP7) is a protein belonging to a broad group of phosphatases that can dephosphorylate phosphoserine/phosphothreonine as well as phosphotyrosine residues within the same substrate. DUSP7 has been linked to the negative regulation of mitogen activated protein kinases (MAPK), and in particular to the regulation of extracellular signal-regulated kinases 1 and 2 (ERK1/2). MAPKs play an important role in embryonic development, where their duration, magnitude, and spatiotemporal activity must be strictly controlled by other proteins, among others by DUSPs. In this study, we focused on the effect of DUSP7 depletion on the in vitro differentiation of mouse embryonic stem (ES) cells. We showed that even though DUSP7 knock-out ES cells do retain some of their basic characteristics, when it comes to differentiation, they preferentially differentiate towards neural cells, while the formation of early cardiac mesoderm is repressed. Therefore, our data indicate that DUSP7 is necessary for the correct formation of neuroectoderm and cardiac mesoderm during the in vitro differentiation of ES cells.
Collapse
Affiliation(s)
- Stanislava Sladeček
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | | | - Martina Bőhmová
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Tomáš Gybeľ
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | | | - Jiří Pacherník
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- * E-mail:
| |
Collapse
|
7
|
Ferencova I, Vaskovicova M, Drutovic D, Knoblochova L, Macurek L, Schultz RM, Solc P. CDC25B is required for the metaphase I-metaphase II transition in mouse oocytes. J Cell Sci 2022; 135:274615. [PMID: 35237831 DOI: 10.1242/jcs.252924] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 02/16/2022] [Indexed: 11/20/2022] Open
Abstract
Mammalian oocytes are arrested at meiotic prophase I. The dual-specificity phosphatase CDC25B is essential for cyclin-dependent kinase 1 (CDK1) activation that drives resumption of meiosis. CDC25B reverses the inhibitory effect of the protein kinases WEE1/MYT1 on CDK1 activation. Cdc25b-/- female mice are infertile because oocytes cannot activate CDK1. To identify a role for CDC25B following resumption of meiosis, we restored CDK1 activation in Cdc25b-/- oocytes by inhibiting WEE1/MYT1, or expressing EGFP-CDC25A or constitutively active EGFP-CDK1 from microinjected cRNAs. Forced CDK1 activation in Cdc25b-/- oocytes allowed resumption of meiosis, but oocytes mostly arrested at metaphase I (MI) with intact spindles. Similarly, ∼1/3 of Cdc25b+/- oocytes with reduced amount of CDC25B arrest in MI. MI arrested Cdc25b-/- oocytes also display a transient decrease in CDK1 activity similar to Cdc25b+/+ oocytes during the MI-MII transition, whereas Cdc25b+/- oocytes exhibit only a partial APC/C activation and anaphase I entry. Thus, CDC25B is necessary for resumption of meiosis and the MI-MII transition.
Collapse
Affiliation(s)
- Ivana Ferencova
- Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Libechov, Czech Republic.,Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Michaela Vaskovicova
- Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Libechov, Czech Republic
| | - David Drutovic
- Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Libechov, Czech Republic
| | - Lucie Knoblochova
- Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Libechov, Czech Republic
| | - Libor Macurek
- Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Richard M Schultz
- Department of Biology, University of Pennsylvania, Philadelphia, PA, USA.,Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Petr Solc
- Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Libechov, Czech Republic
| |
Collapse
|
8
|
Bai H, Song M, Jiao R, Li W, Zhao J, Xiao M, Jin M, Zhang Z, Deng H. DUSP7 inhibits cervical cancer progression by inactivating the RAS pathway. J Cell Mol Med 2021; 25:9306-9318. [PMID: 34435746 PMCID: PMC8500958 DOI: 10.1111/jcmm.16865] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 07/30/2021] [Accepted: 08/05/2021] [Indexed: 12/13/2022] Open
Abstract
To determine the differentially expressed proteins (DEPs) between paired samples of cervical cancer (CC) and paracancerous tissue by quantitative proteomics and to examine the effects of DUSP7 expression on the tumorigenesis and progression of CC. Proteomic profiles of three paired samples of CC and paracancerous tissue were quantitatively analysed to identify DEPs. The relationship between DEP expression and patient clinicopathological characteristics and prognosis was evaluated. The effects of the selected DEPs on CC progression were examined in SIHA cells. A total of 129 DEPs were found. Western blot and immunohistochemistry (IHC) staining analyses confirmed the results from quantitative proteomic analysis showing that the selected DEP, HRAS, P-ERK1/2, and PLD1 levels were increased, whereas the DUSP7 level was decreased in CC tissue compared with the paired normal paracancerous tissues. The IHC results from the CC TMA analysis showed that the decreased expression of DUSP7 (p = 0.045 and 0.044) was significantly associated with a tumour size >2 cm and parametrial infiltration. In addition, the decreased expression of DUSP7 and increased expression of p-ERK1/2 were adversely related to patient relapse (p = 0.003 and 0.001) and survival (p = 0.034 and 0.006). The expression of HRAS and p-ERK1/2 was decreased in DUSP7-SIHA cells compared with NC-SIHA cells (p = 0.0003 and 0.0026). Biological functions in vitro, including invasion, migration and proliferation and tumour formation in vivo were decreased in DUSP7-SIHA cells (all p < 0.05) but increased in shDUSP7-SIHA cells (all p < 0.05). DUSP7 inhibits cervical cancer progression by inactivating the RAS pathway.
Collapse
Affiliation(s)
- Huimin Bai
- Department of Obstetrics and Gynecology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
| | - Meiying Song
- Department of Obstetrics and Gynecology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China.,Department of Obstetrics and Gynecology, Fuxing Hospital, Capital Medical University, Beijing, China
| | - Ruili Jiao
- Department of Obstetrics and Gynecology, Beijing Chaoyang District Maternal and Child Health Care Hospital, Beijing, China
| | - Weihua Li
- Department of Obstetrics and Gynecology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
| | - Jing Zhao
- Department of Obstetrics and Gynecology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
| | - Meizhu Xiao
- Department of Obstetrics and Gynecology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
| | - Mulan Jin
- Department of Pathology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
| | - Zhengyu Zhang
- Department of Obstetrics and Gynecology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
| | - Haiteng Deng
- MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, China
| |
Collapse
|
9
|
Kałuzińska Ż, Kołat D, Bednarek AK, Płuciennik E. PLEK2, RRM2, GCSH: A Novel WWOX-Dependent Biomarker Triad of Glioblastoma at the Crossroads of Cytoskeleton Reorganization and Metabolism Alterations. Cancers (Basel) 2021; 13:cancers13122955. [PMID: 34204789 PMCID: PMC8231639 DOI: 10.3390/cancers13122955] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/30/2021] [Accepted: 06/11/2021] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma is one of the deadliest human cancers. Its malignancy depends on cytoskeleton reorganization, which is related to, e.g., epithelial-to-mesenchymal transition and metastasis. The malignant phenotype of glioblastoma is also affected by the WWOX gene, which is lost in nearly a quarter of gliomas. Although the role of WWOX in the cytoskeleton rearrangement has been found in neural progenitor cells, its function as a modulator of cytoskeleton in gliomas was not investigated. Therefore, this study aimed to investigate the role of WWOX and its collaborators in cytoskeleton dynamics of glioblastoma. Methodology on RNA-seq data integrated the use of databases, bioinformatics tools, web-based platforms, and machine learning algorithm, and the obtained results were validated through microarray data. PLEK2, RRM2, and GCSH were the most relevant WWOX-dependent genes that could serve as novel biomarkers. Other genes important in the context of cytoskeleton (BMP4, CCL11, CUX2, DUSP7, FAM92B, GRIN2B, HOXA1, HOXA10, KIF20A, NF2, SPOCK1, TTR, UHRF1, and WT1), metabolism (MTHFD2), or correlation with WWOX (COL3A1, KIF20A, RNF141, and RXRG) were also discovered. For the first time, we propose that changes in WWOX expression dictate a myriad of alterations that affect both glioblastoma cytoskeleton and metabolism, rendering new therapeutic possibilities.
Collapse
|
10
|
Guo X, Ramirez I, Garcia YA, Velasquez EF, Gholkar AA, Cohn W, Whitelegge JP, Tofig B, Damoiseaux R, Torres JZ. DUSP7 regulates the activity of ERK2 to promote proper chromosome alignment during cell division. J Biol Chem 2021; 296:100676. [PMID: 33865857 PMCID: PMC8131738 DOI: 10.1016/j.jbc.2021.100676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/10/2021] [Accepted: 04/14/2021] [Indexed: 12/20/2022] Open
Abstract
Human cell division is a highly regulated process that relies on the accurate capture and movement of chromosomes to the metaphase plate. Errors in the fidelity of chromosome congression and alignment can lead to improper chromosome segregation, which is correlated with aneuploidy and tumorigenesis. These processes are known to be regulated by extracellular signal-regulated kinase 2 (ERK2) in other species, but the role of ERK2 in mitosis in mammals remains unclear. Here, we have identified the dual-specificity phosphatase 7 (DUSP7), known to display selectivity for ERK2, as important in regulating chromosome alignment. During mitosis, DUSP7 bound to ERK2 and regulated the abundance of active phospho-ERK2 through its phosphatase activity. Overexpression of DUSP7, but not catalytically inactive mutants, led to a decrease in the levels of phospho-ERK2 and mitotic chromosome misalignment, while knockdown of DUSP7 also led to defective chromosome congression that resulted in a prolonged mitosis. Consistently, knockdown or chemical inhibition of ERK2 or chemical inhibition of the MEK kinase that phosphorylates ERK2 led to chromosome alignment defects. Our results support a model wherein MEK-mediated phosphorylation and DUSP7-mediated dephosphorylation regulate the levels of active phospho-ERK2 to promote proper cell division.
Collapse
Affiliation(s)
- Xiao Guo
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Ivan Ramirez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Yenni A Garcia
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Erick F Velasquez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Ankur A Gholkar
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA
| | - Whitaker Cohn
- Pasarow Mass Spectrometry Laboratory, The Jane and Terry Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Julian P Whitelegge
- Pasarow Mass Spectrometry Laboratory, The Jane and Terry Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, California, USA; Molecular Biology Institute, University of California, Los Angeles, California, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
| | - Bobby Tofig
- California NanoSystems Institute, University of California, Los Angeles, California, USA
| | - Robert Damoiseaux
- California NanoSystems Institute, University of California, Los Angeles, California, USA; Department of Molecular and Medical Pharmacology, University of California, Los Angeles, California, USA
| | - Jorge Z Torres
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA; Molecular Biology Institute, University of California, Los Angeles, California, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA.
| |
Collapse
|
11
|
Zhang J, Zhang YL, Zhao LW, Pi SB, Zhang SY, Tong C, Fan HY. The CRL4-DCAF13 ubiquitin E3 ligase supports oocyte meiotic resumption by targeting PTEN degradation. Cell Mol Life Sci 2020; 77:2181-2197. [PMID: 31492966 PMCID: PMC11105099 DOI: 10.1007/s00018-019-03280-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 07/31/2019] [Accepted: 08/12/2019] [Indexed: 12/21/2022]
Abstract
Cullin ring-finger ubiquitin ligase 4 (CRL4) has multiple functions in the maintenance of oocyte survival and meiotic cell cycle progression. DCAF13, a novel CRL4 adaptor, is essential for oocyte development. But the mechanisms by which CRL4-DCAF13 supports meiotic maturation remained unclear. In this study, we demonstrated that DCAF13 stimulates the meiotic resumption-coupled activation of protein synthesis in oocytes, partially by maintaining the activity of PI3K signaling pathway. CRL4-DCAF13 targets the polyubiquitination and degradation of PTEN, a lipid phosphatase that inhibits PI3K pathway as well as oocyte growth and maturation. Dcaf13 knockout in oocytes caused decreased CDK1 activity and impaired meiotic cell cycle progression and chromosome condensation defects. As a result, chromosomes fail to be aligned at the spindle equatorial plate, the spindle assembly checkpoint is activated, and most Dcaf13 null oocytes are arrested at the prometaphase I. The DCAF13-dependent PTEN degradation mechanism fits in as a missing link between CRL4 ubiquitin E3 ligase and PI3K pathway, both of which are crucial for translational activation during oocyte GV-MII transition.
Collapse
Affiliation(s)
- Jue Zhang
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, 866 Yu Hang Tang Rd., Hangzhou, 310058, China
| | - Yin-Li Zhang
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province; Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
| | - Long-Wen Zhao
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, 866 Yu Hang Tang Rd., Hangzhou, 310058, China
| | - Shuai-Bo Pi
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, 866 Yu Hang Tang Rd., Hangzhou, 310058, China
| | - Song-Ying Zhang
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province; Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
| | - Chao Tong
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, 866 Yu Hang Tang Rd., Hangzhou, 310058, China
| | - Heng-Yu Fan
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province; Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China.
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, 866 Yu Hang Tang Rd., Hangzhou, 310058, China.
| |
Collapse
|
12
|
Wu L, Liu Y, Zhao Y, Li M, Guo L. Targeting DUSP7 signaling alleviates hepatic steatosis, inflammation and oxidative stress in high fat diet (HFD)-fed mice via suppression of TAK1. Free Radic Biol Med 2020; 153:140-158. [PMID: 32311490 DOI: 10.1016/j.freeradbiomed.2020.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/02/2020] [Accepted: 04/09/2020] [Indexed: 02/06/2023]
Abstract
The non-alcoholic fatty liver disease (NAFLD), as a critical liver disease, is still lack of effective treatments because the molecular mechanism revealing the NAFLD pathogenesis remains unclear. Dual specific phosphatase 6 (DUSP7) shows effects on inflammatory response and is a negative feedback mechanism of the mitogen-activated protein kinase (MAPK) superfamily, which are critical factors in regulating NAFLD progression. However, the effects of DUSP7 on hepatic steatosis are still not fully understood. Here, we found that DUSP7 functioned as a negative regulator of NAFLD and in various metabolic disorders. DUSP7 expression was markedly reduced in liver samples from patients with simple hepatic steatosis or non-alcoholic steatohepatitis (NASH), as well as in liver tissues from high fat diet (HFD)-challenged mice or genetically obese (ob/ob) mice. DUSP7 knockout markedly accelerated insulin resistance, glucose intolerance, liver dysfunction, fibrosis and hepatic steatosis in HFD-fed mice. In addition, inflammatory response was significantly exacerbated in HFD-challenged mice with DUSP7 deletion, which was associated with the elevated activation of nuclear factor-κB (NF-κB) and MAPKs signaling pathways. Moreover, oxidative stress was detected in liver of HFD-induced mice, and this phenomenon was aggravated in mice with DUSP7 knockout. Importantly, we demonstrated that DUSP7 physically interacted with transforming growth factor β (TGF-β)-activated kinase (TAK1). DUSP7 deletion considerably promoted the activation of TAK1 in mice after HFD feeding, contributing to the lipid deposition, inflammatory response and reactive oxygen species (ROS) production. Taken together, DUSP7 might function as a protective factor against NAFLD development and metabolic disorder through alleviating dyslipidemia, inflammation and oxidative stress by directly interacting with TAK1 in hepatocytes, which was involved in the suppression of fibrosis. Thus, we may provide an effective strategy for the treatment of hepatic steatosis via targeting DUSP7.
Collapse
Affiliation(s)
- Liping Wu
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Yongcun Liu
- Department of Oncology, The First People's Hospital of Xianyang, Xianyang, 712000, China
| | - Yuan Zhao
- Department of Gerontology, Shaanxi Provincial People's Hospita, Xi'an, 710068, China
| | - Meng Li
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Ling Guo
- Department of Oncology, The First People's Hospital of Xianyang, Xianyang, 712000, China
| |
Collapse
|
13
|
Zhang C, Chen Z, Yin Q, Fu X, Li Y, Stopka T, Skoultchi AI, Zhang Y. The chromatin remodeler Snf2h is essential for oocyte meiotic cell cycle progression. Genes Dev 2020; 34:166-178. [PMID: 31919188 PMCID: PMC7000916 DOI: 10.1101/gad.331157.119] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 12/16/2019] [Indexed: 12/13/2022]
Abstract
In this study, Zhang et al. set out to describe the molecular mechanisms underlying meiotic chromatin remodeling and meiotic resumption during oocyte development. Using a combination of in vivo and genomic approaches, the authors demonstrate that Snf2h, the catalytic subunit of ISWI family complexes, is critical in driving meiotic progression and acts by regulating the expression of genes important for maturation-promoting factor (MPF) activation. Oocytes are indispensable for mammalian life. Thus, it is important to understand how mature oocytes are generated. As a critical stage of oocytes development, meiosis has been extensively studied, yet how chromatin remodeling contributes to this process is largely unknown. Here, we demonstrate that the ATP-dependent chromatin remodeling factor Snf2h (also known as Smarca5) plays a critical role in regulating meiotic cell cycle progression. Females with oocyte-specific depletion of Snf2h are infertile and oocytes lacking Snf2h fail to undergo meiotic resumption. Mechanistically, depletion of Snf2h results in dysregulation of meiosis-related genes, which causes failure of maturation-promoting factor (MPF) activation. ATAC-seq analysis in oocytes revealed that Snf2h regulates transcription of key meiotic genes, such as Prkar2b, by increasing its promoter chromatin accessibility. Thus, our studies not only demonstrate the importance of Snf2h in oocyte meiotic resumption, but also reveal the mechanism underlying how a chromatin remodeling factor can regulate oocyte meiosis.
Collapse
Affiliation(s)
- Chunxia Zhang
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Zhiyuan Chen
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Qiangzong Yin
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Xudong Fu
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Yisi Li
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Department of Automation, Tsinghua University, Beijing 100084, China
| | - Tomas Stopka
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Arthur I Skoultchi
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Yi Zhang
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Harvard Stem Cell Institute, Boston, Massachusetts 02115, USA
| |
Collapse
|
14
|
Seternes OM, Kidger AM, Keyse SM. Dual-specificity MAP kinase phosphatases in health and disease. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1866:124-143. [PMID: 30401534 PMCID: PMC6227380 DOI: 10.1016/j.bbamcr.2018.09.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/15/2018] [Accepted: 09/06/2018] [Indexed: 02/07/2023]
Abstract
It is well established that a family of dual-specificity MAP kinase phosphatases (MKPs) play key roles in the regulated dephosphorylation and inactivation of MAP kinase isoforms in mammalian cells and tissues. MKPs provide a mechanism of spatiotemporal feedback control of these key signalling pathways, but can also mediate crosstalk between distinct MAP kinase cascades and facilitate interactions between MAP kinase pathways and other key signalling modules. As our knowledge of the regulation, substrate specificity and catalytic mechanisms of MKPs has matured, more recent work using genetic models has revealed key physiological functions for MKPs and also uncovered potentially important roles in regulating the pathophysiological outcome of signalling with relevance to human diseases. These include cancer, diabetes, inflammatory and neurodegenerative disorders. It is hoped that this understanding will reveal novel therapeutic targets and biomarkers for disease, thus contributing to more effective diagnosis and treatment for these debilitating and often fatal conditions. A comprehensive review of the dual-specificity MAP kinase Phosphatases (MKPs) Focus is on MKPs in the regulation of MAPK signalling in health and disease. Covers roles of MKPs in inflammation, obesity/diabetes, cancer and neurodegeneration
Collapse
Affiliation(s)
- Ole-Morten Seternes
- Department of Pharmacy, UiT The Arctic University of Norway, N-9037 Tromsø, Norway.
| | - Andrew M Kidger
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, England, UK.
| | - Stephen M Keyse
- Stress Response Laboratory, Jacqui Wood Cancer Centre, James Arrot Drive, Ninewells Hospital & Medical School, Dundee DD1 9SY, UK.
| |
Collapse
|
15
|
Molecular Mechanisms of Prophase I Meiotic Arrest Maintenance and Meiotic Resumption in Mammalian Oocytes. Reprod Sci 2018; 26:1519-1537. [DOI: 10.1177/1933719118765974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mechanisms of meiotic prophase I arrest maintenance (germinal vesicle [GV] stage) and meiotic resumption (germinal vesicle breakdown [GVBD] stage) in mammalian oocytes seem to be very complicated. These processes are regulated via multiple molecular cascades at transcriptional, translational, and posttranslational levels, and many of them are interrelated. There are many molecular cascades of meiosis maintaining and meiotic resumption in oocyte which are orchestrated by multiple molecules produced by pituitary gland and follicular cells. Furthermore, many of these molecular cascades are duplicated, thus ensuring the stability of the entire system. Understanding mechanisms of oocyte maturation is essential to assess the oocyte status, develop effective protocols of oocyte in vitro maturation, and design novel contraceptive drugs. Mechanisms of meiotic arrest maintenance at prophase I and meiotic resumption in mammalian oocytes are covered in the present article.
Collapse
|
16
|
Peng H, Huo J, Gao Y, Chen J, Yu X, Xiao T. Fas-associated protein factor 1 is involved in meiotic resumption in mouse oocytes. J Reprod Dev 2018; 64:173-177. [PMID: 29434078 PMCID: PMC5902905 DOI: 10.1262/jrd.2017-081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Fas-associated protein factor 1 (FAF1) is a Fas-associated protein that functions in multiple cellular processes. Previous research showed that mutations in Faf1 led to
the lethality of cleavage stage embryos in a mouse model. The aim of the present study was to analyze the expression pattern, localization, and function of FAF1 in meiotic resumption of
mouse oocytes. FAF1 was exclusively expressed in oocytes at various follicular stages within the ovary and was predominantly localized in the cytoplasm of growing oocytes. Furthermore,
Faf1 mRNA and protein were persistently present during oocyte maturation and Faf1 mRNA levels were similar in the germinal vesicle (GV), GV breakdown
(GVBD), and metaphase II (MII) stages of oocytes. Moreover, knockdown of Faf1 in GV-stage oocytes led to a significantly decreased rate of GVBD. To our knowledge, these
results provide the first evidence regarding a novel function of FAF1 in meiotic resumption in mouse oocytes.
Collapse
Affiliation(s)
- Hui Peng
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Jianchao Huo
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Yuyun Gao
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Jing Chen
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Xiang Yu
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Tianfang Xiao
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| |
Collapse
|