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Zhu Q, Ge J, Liu Y, Xu JW, Yan S, Zhou F. Decoding anterior-posterior axis emergence among mouse, monkey, and human embryos. Dev Cell 2023; 58:63-79.e4. [PMID: 36626872 DOI: 10.1016/j.devcel.2022.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 08/23/2022] [Accepted: 12/07/2022] [Indexed: 01/11/2023]
Abstract
Anterior-posterior axis formation regulated by the distal visceral endoderm (DVE) and anterior visceral endoderm (AVE) is essential for peri-implantation embryogenesis. However, the principles of the origin and specialization of DVE and AVE remain elusive. Here, with single-cell transcriptome analysis and pseudotime prediction, we show that DVE and AVE independently originate from the specialized primary endoderm in mouse blastocysts. Along distinct developmental paths, these two lineages, respectively, undergo four representative states with stage-specific transcriptional patterns around implantation. Further comparative analysis shows that AVE, but not DVE, is detected in human and non-human primate embryos, defining differences in polarity formation across species. Moreover, stem cell-assembled human blastoids lack DVE or AVE precursors, implying that additional induction of stem cells with DVE/AVE potential could promote the current embryo-like models and their post-implantation growth. Our work provides insight into understanding of embryonic polarity formation and early mammalian development.
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Affiliation(s)
- Qingyuan Zhu
- Haihe Laboratory of Cell Ecosystem, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jitao Ge
- Haihe Laboratory of Cell Ecosystem, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ying Liu
- Haihe Laboratory of Cell Ecosystem, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jia-Wen Xu
- Haihe Laboratory of Cell Ecosystem, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Shengyi Yan
- Haihe Laboratory of Cell Ecosystem, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Fan Zhou
- Haihe Laboratory of Cell Ecosystem, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.
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2
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Gunyuz Z, Sahi-Ilhan E, Kucukkose C, Ipekgil D, Tok G, Mese G, Ozcivici E, Yalcin-Ozuysal O. SEMA6D Differentially Regulates Proliferation, Migration, and Invasion of Breast Cell Lines. ACS OMEGA 2022; 7:15769-15778. [PMID: 35571788 PMCID: PMC9097209 DOI: 10.1021/acsomega.2c00840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 04/14/2022] [Indexed: 06/15/2023]
Abstract
Semaphorin 6D (SEMA6D), a member of the class 6 semaphorin family, is a membrane-associated protein that plays a key role in the development of cardiac and neural tissues. A growing body of evidence suggests that SEMA6D is also involved in tumorigenesis. In breast cancer, high SEMA6D levels are correlated with better survival rates. However, very little is known about the functional significance of SEMA6D in breast tumorigenesis. In the present study, we aimed to investigate the effects of SEMA6D expression on the normal breast cell line MCF10A and the breast cancer cell lines MCF7 and MDA MB 231. We demonstrated that SEMA6D expression increases the proliferation of MCF10A cells, whereas the opposite effect was observed in MCF7 cells. SEMA6D expression induced anchorage-independent growth in both cancer cell lines. Furthermore, migration of MCF10A and MCF7 cells and invasion of MDA MB 231 cells were elevated in response to SEMA6D overexpression. Accordingly, the genes related to epithelial-mesenchymal transition (EMT) were altered by SEMA6D expression in MCF10A and MCF7 cell lines. Finally, we provided evidence that SEMA6D levels were associated with the expression of the cell cycle, EMT, and Notch signaling pathway-related genes in breast cancer patients' data. We showed for the first time that SEMA6D overexpression has cell-specific effects on the proliferation, migration, and invasion of normal and cancer breast cell lines, which agrees with the gene expression data of clinical samples. This study lays the groundwork for future research into understanding the functional importance of SEMA6D in breast cancer.
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Affiliation(s)
- Zehra
Elif Gunyuz
- Department
of Molecular Biology and Genetics, Izmir
Institute of Technology, 35430 Izmir, Turkey
| | - Ece Sahi-Ilhan
- Department
of Molecular Biology and Genetics, Izmir
Institute of Technology, 35430 Izmir, Turkey
| | - Cansu Kucukkose
- Department
of Molecular Biology and Genetics, Izmir
Institute of Technology, 35430 Izmir, Turkey
| | - Dogac Ipekgil
- Department
of Molecular Biology and Genetics, Izmir
Institute of Technology, 35430 Izmir, Turkey
| | - Gunes Tok
- Department
of Molecular Biology and Genetics, Izmir
Institute of Technology, 35430 Izmir, Turkey
| | - Gulistan Mese
- Department
of Molecular Biology and Genetics, Izmir
Institute of Technology, 35430 Izmir, Turkey
| | - Engin Ozcivici
- Department
of Bioengineering, Izmir Institute of Technology, 35430 Izmir, Turkey
| | - Ozden Yalcin-Ozuysal
- Department
of Molecular Biology and Genetics, Izmir
Institute of Technology, 35430 Izmir, Turkey
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3
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Sheng J, Xu J, Geng K, Liu D. Sema6D Regulates Zebrafish Vascular Patterning and Motor Neuronal Axon Growth in Spinal Cord. Front Mol Neurosci 2022; 15:854556. [PMID: 35465091 PMCID: PMC9021825 DOI: 10.3389/fnmol.2022.854556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/02/2022] [Indexed: 12/22/2022] Open
Abstract
Vessels and nerves are closely associated in anatomy as well as functions. Accumulating evidences have demonstrated that axon-guiding signals may affect endothelial cells migration and path finding, which is crucial for the patterning of both the complex vascular network and neural system. However, studies regarding the functional overlap between vascular and neuronal orchestrating are still incomplete. Semaphorin6D (Sema6D) belongs to the Semaphorin family and has been identified as an important regulating factor in diverse biological processes. Its roles in vascular development are still unclear. Here, we confirmed that sema6D is enriched in neural system and blood vessels of zebrafish embryos by in situ hybridization. Then, the deficiency of sema6D caused by specific antisense morpholino-oligonucleotides (MO) led to dramatic path finding defects in both intersegmental vessels (ISVs) and primary motor neurons (PMNs) of spinal cord in zebrafish embryos. Furthermore, these defective phenotypes were confirmed in F0 generation of sema6D knockouts and rescue experiments by overexpression of sema6D mRNA in sema6D morphants. These data collectively indicate that sema6D regulates zebrafish vascular patterning and motor neuronal axon growth in the spinal cord, which might be of great therapeutical use to regulate vessel and nerve guidance in the relevant diseases that affect both systems.
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Affiliation(s)
- Jiajing Sheng
- Nantong Laboratory of Development and Diseases, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, School of Life Science, Second Affiliated Hospital, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Jiehuan Xu
- Medical School, Nantong University, Nantong, China
| | - Kaixi Geng
- Nantong Laboratory of Development and Diseases, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, School of Life Science, Second Affiliated Hospital, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Dong Liu
- Nantong Laboratory of Development and Diseases, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, School of Life Science, Second Affiliated Hospital, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
- *Correspondence: Dong Liu
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4
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Lagaye S, Brun S, Gaston J, Shen H, Stranska R, Camus C, Dubray C, Rousseau G, Massault PP, Courcambeck J, Bassisi F, Halfon P, Pol S. Anti-hepatitis C virus potency of a new autophagy inhibitor using human liver slices model. World J Hepatol 2016; 8:902-14. [PMID: 27478540 PMCID: PMC4958700 DOI: 10.4254/wjh.v8.i21.902] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 06/01/2016] [Accepted: 06/27/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the antiviral potency of a new anti-hepatitis C virus (HCV) antiviral agent targeting the cellular autophagy machinery. METHODS Non-infected liver slices, obtained from human liver resection and cut in 350 μm-thick slices (2.7 × 10(6) cells per slice) were infected with cell culture-grown HCV Con1b/C3 supernatant (multiplicity of infection = 0.1) cultivated for up to ten days. HCV infected slices were treated at day 4 post-infection with GNS-396 for 6 d at different concentrations. HCV replication was evaluated by strand-specific real-time quantitative reverse transcription - polymerase chain reaction. The infectivity titers of supernatants were evaluated by foci formation upon inoculation into naive Huh-7.5.1 cells. The cytotoxic effect of the drugs was evaluated by lactate dehydrogenase leakage assays. RESULTS The antiviral efficacy of a new antiviral drug, GNS-396, an autophagy inhibitor, on HCV infection of adult human liver slices was evidenced in a dose-dependent manner. At day 6 post-treatment, GNS-396 EC50 was 158 nmol/L without cytotoxic effect (compared to hydroxychloroquine EC50 = 1.17 μmol/L). CONCLUSION Our results demonstrated that our ex vivo model is efficient for evaluation the potency of autophagy inhibitors, in particular a new quinoline derivative GNS-396 as antiviral could inhibit HCV infection in a dose-dependent manner without cytotoxic effect.
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Affiliation(s)
- Sylvie Lagaye
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Sonia Brun
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Jesintha Gaston
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Hong Shen
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Ruzena Stranska
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Claire Camus
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Clarisse Dubray
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Géraldine Rousseau
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Pierre-Philippe Massault
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Jerôme Courcambeck
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Firas Bassisi
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Philippe Halfon
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
| | - Stanislas Pol
- Sylvie Lagaye, Jesintha Gaston, Stanislas Pol, Institut Pasteur, INSERM U1223, 75015 Paris, France
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SEMA6D Expression and Patient Survival in Breast Invasive Carcinoma. Int J Breast Cancer 2015; 2015:539721. [PMID: 25973277 PMCID: PMC4417987 DOI: 10.1155/2015/539721] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 03/26/2015] [Indexed: 12/27/2022] Open
Abstract
Breast cancer (BC) is the second most common cancer diagnosed in American women and is also the second leading cause of cancer death in women. Research has focused heavily on BC metastasis. Multiple signaling pathways have been implicated in regulating BC metastasis. Our knowledge of regulation of BC metastasis is, however, far from complete. Identification of new factors during metastasis is an essential step towards future therapy. Our labs have focused on Semaphorin 6D (SEMA6D), which was implicated in immune responses, heart development, and neurogenesis. It will be interesting to know SEMA6D-related genomic expression profile and its implications in clinical outcome. In this study, we examined the public datasets of breast invasive carcinoma from The Cancer Genome Atlas (TCGA). We analyzed the expression of SEMA6D along with its related genes, their functions, pathways, and potential as copredictors for BC patients' survival. We found 6-gene expression profile that can be used as such predictors. Our study provides evidences for the first time that breast invasive carcinoma may contain a subtype based on SEMA6D expression. The expression of SEMA6D gene may play an important role in promoting patient survival, especially among triple negative breast cancer patients.
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6
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Ebert AM, Lamont RE, Childs SJ, McFarlane S. Neuronal expression of class 6 semaphorins in zebrafish. Gene Expr Patterns 2012; 12:117-22. [PMID: 22330030 DOI: 10.1016/j.gep.2012.01.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Revised: 01/19/2012] [Accepted: 01/27/2012] [Indexed: 02/01/2023]
Abstract
Semaphorins are a large family of guidance molecules identified by an extracellular SEMA domain. Classes 1 and 2 are derived from invertebrates, classes 3-7 are vertebrate and class 8 (v) are viral semaphorins. Class 6 semaphorins are reported to have a wide variety of roles including in axon guidance, transcriptional regulation and cancer. Here we report the identification and expression of four class 6 semaphorins (6A, 6Ba, 6Bb and 6Dl) in three stages of larval development in zebrafish (24, 48 and 72 hours postfertilization). Our data indicate that each of the class 6 semaphorins shows a distinct pattern of expression in the developing nervous system that is dynamic over the first 3 days of embryonic development. These data suggest that the individual class 6 semaphorins have diverse roles in nervous system development.
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Affiliation(s)
- A M Ebert
- Hotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta, Canada
| | - R E Lamont
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Alberta, Canada
| | - S J Childs
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Alberta, Canada
| | - S McFarlane
- Hotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta, Canada
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Taniguchi M, Masuda T, Mikami Y, Kimura M, Yoshida T, Mishina M, Shimizu T. Identification and characterization of a novel zebrafish semaphorin. Neurosci Lett 2010; 488:215-20. [PMID: 21094219 DOI: 10.1016/j.neulet.2010.11.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 11/12/2010] [Accepted: 11/12/2010] [Indexed: 10/18/2022]
Abstract
The semaphorin gene family contains numerous secreted and transmembrane proteins. Some of them function as the repulsive and attractive axon guidance molecules during development. Herein, we report the cloning and characterization of a novel member of zebrafish semaphorin gene, semaphorin 6E (sema6E). Sema6E is expressed predominantly in the nervous system during embryogenesis. Results also show that Sema6E binds Plexin-A1, but not other Plexins. Sema6E chemorepels not only dorsal root ganglion axons but also sympathetic axons. Therefore, Sema6E might utilize Plexin-A1 as a receptor to repel axons of the specific types during development.
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Affiliation(s)
- Masahiko Taniguchi
- Department of Biochemistry, Cancer Research Institute, Sapporo Medical University School of Medicine, S-1 W-17, Chuo-ku, Sapporo, Hokkaido 060-8556, Japan.
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Recent Papers on Zebrafish and Other Aquarium Fish Models. Zebrafish 2007. [DOI: 10.1089/zeb.2007.9977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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