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Wang R, Hu P, Wang F, Lyu J, Ou Y, Edderkaoui M, Zhang Y, Lewis MS, Pandol SJ, Zhau HE, Chung LWK. Spontaneous Fusion with Transformed Mesenchymal Stromal Cells Results in Complete Heterogeneity in Prostate Cancer Cells. Cancers (Basel) 2024; 16:951. [PMID: 38473313 PMCID: PMC10931070 DOI: 10.3390/cancers16050951] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/16/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Tumor cells gain advantages in growth and survival by acquiring genotypic and phenotypic heterogeneity. Interactions with bystander cells in the tumor microenvironment contribute to the progression of heterogeneity. We have shown that fusion between tumor and bystander cells is one form of interaction, and that tumor-bystander cell fusion has contrasting effects. By trapping fusion hybrids in the heterokaryon or synkaryon state, tumor-bystander cell fusion prevents the progression of heterogeneity. However, if trapping fails, fusion hybrids will resume replication to form derivative clones with diverse genomic makeups and behavioral phenotypes. To determine the characteristics of bystander cells that influence the fate of fusion hybrids, we co-cultured prostate mesenchymal stromal cell lines and their spontaneously transformed sublines with LNCaP as well as HPE-15 prostate cancer cells. Subclones derived from cancer-stromal fusion hybrids were examined for genotypic and phenotypic diversifications. Both stromal cell lines were capable of fusing with cancer cells, but only fusion hybrids with the transformed stromal subline generated large numbers of derivative subclones. Each subclone had distinct cell morphologies and growth behaviors and was detected with complete genomic hybridization. The health conditions of the bystander cell compartment play a crucial role in the progression of tumor cell heterogeneity.
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Affiliation(s)
- Ruoxiang Wang
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (P.H.); (F.W.); (J.L.); (M.E.); (S.J.P.); (H.E.Z.); (L.W.K.C.)
| | - Peizhen Hu
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (P.H.); (F.W.); (J.L.); (M.E.); (S.J.P.); (H.E.Z.); (L.W.K.C.)
| | - Fubo Wang
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (P.H.); (F.W.); (J.L.); (M.E.); (S.J.P.); (H.E.Z.); (L.W.K.C.)
| | - Ji Lyu
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (P.H.); (F.W.); (J.L.); (M.E.); (S.J.P.); (H.E.Z.); (L.W.K.C.)
| | - Yan Ou
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.O.); (Y.Z.)
| | - Mouad Edderkaoui
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (P.H.); (F.W.); (J.L.); (M.E.); (S.J.P.); (H.E.Z.); (L.W.K.C.)
| | - Yi Zhang
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.O.); (Y.Z.)
| | - Michael S. Lewis
- Department of Medicine and Pathology, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA;
| | - Stephen J. Pandol
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (P.H.); (F.W.); (J.L.); (M.E.); (S.J.P.); (H.E.Z.); (L.W.K.C.)
| | - Haiyen E. Zhau
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (P.H.); (F.W.); (J.L.); (M.E.); (S.J.P.); (H.E.Z.); (L.W.K.C.)
| | - Leland W. K. Chung
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (P.H.); (F.W.); (J.L.); (M.E.); (S.J.P.); (H.E.Z.); (L.W.K.C.)
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2
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Xia C, Zhang Q, Pu Y, Hu Q, Wang Y. Cell fusion between tumor cells and macrophages promotes the metastasis of OSCC patient through the activation of the chemokine signaling pathway. Cancer Med 2024; 13:e6940. [PMID: 38457216 PMCID: PMC10923029 DOI: 10.1002/cam4.6940] [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: 11/09/2022] [Revised: 07/10/2023] [Accepted: 07/25/2023] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Tumor metastasis is responsible for the high mortality rate of patients with oral squamous cell carcinoma (OSCC). Although many hypotheses have been proposed to elucidate the mechanism of tumor metastasis, the origin of the metastatic tumor cells remains unclear. In this study, we explored the role of cell fusion in the formation of OSCC metastatic tumor cells. METHODS Murine OSCC tumor cells and macrophages were fused in vitro, and the cell proliferation, migration, and phagocytosis abilities of hybrid cells and parental cells were compared. Subsequently, we compared the transcriptome differences between hybrid and parental cells. RESULTS Murine OSCC tumor cells and macrophages were successfully fused in vitro. The cytological and molecular experimental results revealed that OSCC tumor cells obtained a migration-related phenotype after fusion with macrophages, and the migration ability of hybrid cells was related to the activation of the "chemokine signal pathway". CONCLUSION After fusion with macrophages, the chemokine signaling pathway in OSCC tumor cells was activated, leading to metastasis.
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Affiliation(s)
- Chengwan Xia
- Department of Oral and Maxillofacial Trauma Orthognathic Plastic SurgeryNanjing Stomatological Hospital, Medical School of Nanjing UniversityNanjingChina
| | - Qian Zhang
- Department of Oral and Maxillofacial Trauma Orthognathic Plastic SurgeryNanjing Stomatological Hospital, Medical School of Nanjing UniversityNanjingChina
| | - Yumei Pu
- Department of Oral and Maxillofacial Trauma Orthognathic Plastic SurgeryNanjing Stomatological Hospital, Medical School of Nanjing UniversityNanjingChina
| | - Qingang Hu
- Department of Oral and Maxillofacial Trauma Orthognathic Plastic SurgeryNanjing Stomatological Hospital, Medical School of Nanjing UniversityNanjingChina
| | - Yuxin Wang
- Department of Oral and Maxillofacial Trauma Orthognathic Plastic SurgeryNanjing Stomatological Hospital, Medical School of Nanjing UniversityNanjingChina
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Kiontke K, Fernandez P, Woronik A, Fitch DHA. Morphologically defined substages of tail morphogenesis in C. elegans males. bioRxiv 2024:2024.01.11.575265. [PMID: 38293029 PMCID: PMC10827050 DOI: 10.1101/2024.01.11.575265] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Background Sex-specific morphogenesis occurs in C. elegans in the vulva of the hermaphrodite and in the male tail during the last larval stage. Temporal progression of vulva morphogenesis has been described in fine detail. However, a similar precise description of male tail morphogenesis was lacking. Results We here describe morphogenesis of the male tail at time points matching vulva development with special focus on morphogenesis of the tail tip. Using fluorescent reporters, we follow changes in cell shapes, cell fusions, nuclear migration, modifications in the basement membrane and formation of a new apical extracellular matrix at the end of the tail. Conclusion Our analysis answers two open questions about tail tip morphogenesis (TTM) by showing that one of the four tail tip cells, hyp11, remains separate while the other cells fuse with each other and with two additional tail cells to form a ventral tail syncytium. This fusion begins early during TTM but is only completed towards the end of the process. This work provides a framework for future investigations of cell-biological factors that drive male tail morphogenesis.
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Affiliation(s)
- Karin Kiontke
- Department of Biology, New York University, 100 Washington Square E., New York, NY 10003
| | - Porfirio Fernandez
- Department of Biology, New York University, 100 Washington Square E., New York, NY 10003
| | - Alyssa Woronik
- Sacred Heart University, 5151 Park Avenue, Fairfield, CT 06825
| | - David H A Fitch
- Department of Biology, New York University, 100 Washington Square E., New York, NY 10003
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Toudic C, Maurer M, St-Pierre G, Xiao Y, Bannert N, Lafond J, Rassart É, Sato S, Barbeau B. Galectin-1 Modulates the Fusogenic Activity of Placental Endogenous Retroviral Envelopes. Viruses 2023; 15:2441. [PMID: 38140682 PMCID: PMC10747188 DOI: 10.3390/v15122441] [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: 10/24/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Syncytin-1 and -2 are glycoproteins encoded by human endogenous retrovirus (hERV) that, through their fusogenic properties, are needed for the formation of the placental syncytiotrophoblast. Previous studies suggested that these proteins, in addition to the EnvP(b) envelope protein, are also involved in other cell fusion events. Since galectin-1 is a β-galactoside-binding protein associated with cytotrophoblast fusion during placental development, we previously tested its effect on Syncytin-mediated cell fusion and showed that this protein differently modulates the fusogenic potential of Syncytin-1 and -2. Herein, we were interested in comparing the impact of galectin-1 on hERV envelope proteins in different cellular contexts. Using a syncytium assay, we first demonstrated that galectin-1 increased the fusion of Syncytin-2- and EnvP(b)-expressing cells. We then tested the infectivity of Syncytin-1 and -2 vs. VSV-G-pseudotyped viruses toward Cos-7 and various human cell lines. In the presence of galectin-1, infection of Syncytin-2-pseudotyped viruses augmented for all cell lines. In contrast, the impact of galectin-1 on the infectivity of Syncytin-1-pseudotyped viruses varied, being cell- and dose-dependent. In this study, we report the functional associations between three hERV envelope proteins and galectin-1, which should provide information on the fusogenic activity of these proteins in the placenta and other biological and pathological processes.
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Affiliation(s)
- Caroline Toudic
- Département des Sciences Biologiques and Centre d’excellence en Recherche sur les Maladies Orphelines-Fondation Courtois, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; (C.T.); (Y.X.); (J.L.); (É.R.)
| | - Maike Maurer
- Robert-Koch Institute, 13353 Berlin, Germany; (M.M.); (N.B.)
| | - Guillaume St-Pierre
- Glycobiology and Bioimaging Laboratory, Research Centre for Infectious Diseases and Axe Maladies Infectieuses et Immunitaires, Laval University, Quebec City, QC G1V 0A6, Canada; (G.S.-P.); (S.S.)
| | - Yong Xiao
- Département des Sciences Biologiques and Centre d’excellence en Recherche sur les Maladies Orphelines-Fondation Courtois, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; (C.T.); (Y.X.); (J.L.); (É.R.)
| | - Norbert Bannert
- Robert-Koch Institute, 13353 Berlin, Germany; (M.M.); (N.B.)
| | - Julie Lafond
- Département des Sciences Biologiques and Centre d’excellence en Recherche sur les Maladies Orphelines-Fondation Courtois, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; (C.T.); (Y.X.); (J.L.); (É.R.)
| | - Éric Rassart
- Département des Sciences Biologiques and Centre d’excellence en Recherche sur les Maladies Orphelines-Fondation Courtois, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; (C.T.); (Y.X.); (J.L.); (É.R.)
| | - Sachiko Sato
- Glycobiology and Bioimaging Laboratory, Research Centre for Infectious Diseases and Axe Maladies Infectieuses et Immunitaires, Laval University, Quebec City, QC G1V 0A6, Canada; (G.S.-P.); (S.S.)
| | - Benoit Barbeau
- Département des Sciences Biologiques and Centre d’excellence en Recherche sur les Maladies Orphelines-Fondation Courtois, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; (C.T.); (Y.X.); (J.L.); (É.R.)
- Regroupement Intersectoriel de Recherche en Santé de l’Université du Québec, Montréal, QC H2X 1E3, Canada
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Zhang H, Wang Z, Nguyen HTT, Watson AJ, Lao Q, Li A, Zhu J. Integrin α 5β 1 contributes to cell fusion and inflammation mediated by SARS-CoV-2 spike via RGD-independent interaction. Proc Natl Acad Sci U S A 2023; 120:e2311913120. [PMID: 38060559 PMCID: PMC10723138 DOI: 10.1073/pnas.2311913120] [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: 07/17/2023] [Accepted: 11/03/2023] [Indexed: 12/17/2023] Open
Abstract
The Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus infects host cells by engaging its spike (S) protein with human ACE2 receptor. Recent studies suggest the involvement of integrins in SARS-CoV-2 infection through interaction with the S protein, but the underlying mechanism is not well understood. This study investigated the role of integrin α5β1, which recognizes the Arg-Gly-Asp (RGD) motif in its physiological ligands, in S-mediated virus entry and cell-cell fusion. Our results showed that α5β1 does not directly contribute to S-mediated cell entry, but it enhances S-mediated cell-cell fusion in collaboration with ACE2. This effect cannot be inhibited by the putative α5β1 inhibitor ATN-161 or the high-affinity RGD-mimetic inhibitor MK-0429 but requires the participation of α5 cytoplasmic tail (CT). We detected a direct interaction between α5β1 and the S protein, but this interaction does not rely on the RGD-containing receptor binding domain of the S1 subunit of the S protein. Instead, it involves the S2 subunit of the S protein and α5β1 homo-oligomerization. Furthermore, we found that the S protein induces inflammatory responses in human endothelial cells, characterized by NF-κB activation, gasdermin D cleavage, and increased secretion of proinflammatory cytokines IL-6 and IL-1β. These effects can be attenuated by the loss of α5 expression or inhibition of the α5 CT binding protein phosphodiesterase-4D (PDE4D), suggesting the involvement of α5 CT and PDE4D pathway. These findings provide molecular insights into the pathogenesis of SARS-CoV-2 mediated by a nonclassical RGD-independent ligand-binding and signaling function of integrin α5β1 and suggest potential targets for antiviral treatment.
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Affiliation(s)
- Heng Zhang
- Thrombosis and Hemostasis Program, Versiti Blood Research Institute, Milwaukee, WI53226
| | - Zhengli Wang
- Thrombosis and Hemostasis Program, Versiti Blood Research Institute, Milwaukee, WI53226
| | - Huong T. T. Nguyen
- Thrombosis and Hemostasis Program, Versiti Blood Research Institute, Milwaukee, WI53226
| | - Abigail J. Watson
- Thrombosis and Hemostasis Program, Versiti Blood Research Institute, Milwaukee, WI53226
| | - Qifang Lao
- Thrombosis and Hemostasis Program, Versiti Blood Research Institute, Milwaukee, WI53226
| | - An Li
- Thrombosis and Hemostasis Program, Versiti Blood Research Institute, Milwaukee, WI53226
| | - Jieqing Zhu
- Thrombosis and Hemostasis Program, Versiti Blood Research Institute, Milwaukee, WI53226
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI53226
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6
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Guesdon G, Gourgues G, Rideau F, Ipoutcha T, Manso-Silván L, Jules M, Sirand-Pugnet P, Blanchard A, Lartigue C. Combining Fusion of Cells with CRISPR-Cas9 Editing for the Cloning of Large DNA Fragments or Complete Bacterial Genomes in Yeast. ACS Synth Biol 2023; 12:3252-3266. [PMID: 37843014 PMCID: PMC10662353 DOI: 10.1021/acssynbio.3c00248] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 04/21/2023] [Indexed: 10/17/2023]
Abstract
The genetic engineering of genome fragments larger than 100 kbp is challenging and requires both specific methods and cloning hosts. The yeast Saccharomyces cerevisiae is considered as a host of choice for cloning and engineering whole or partial genomes from viruses, bacteria, and algae. Several methods are now available to perform these manipulations, each with its own limitations. In order to extend the range of yeast cloning strategies, a new approach combining two already described methods, Fusion cloning and CReasPy-Cloning, was developed. The CReasPy-Fusion method allows the simultaneous cloning and engineering of megabase-sized genomes in yeast by the fusion of bacterial cells with yeast spheroplasts carrying the CRISPR-Cas9 system. With this new approach, we demonstrate the feasibility of cloning and editing whole genomes from several Mycoplasma species belonging to different phylogenetic groups. We also show that CReasPy-Fusion allows the capture of large genome fragments with high efficacy, resulting in the successful cloning of selected loci in yeast. We finally identify bacterial nuclease encoding genes as barriers for CReasPy-Fusion by showing that their removal from the donor genome improves the cloning efficacy.
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Affiliation(s)
- Gabrielle Guesdon
- Univ.
Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, F-33140 Villenave
d’Ornon, France
| | - Géraldine Gourgues
- Univ.
Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, F-33140 Villenave
d’Ornon, France
| | - Fabien Rideau
- Univ.
Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, F-33140 Villenave
d’Ornon, France
| | - Thomas Ipoutcha
- Univ.
Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, F-33140 Villenave
d’Ornon, France
| | - Lucía Manso-Silván
- CIRAD,
UMR ASTRE, F-34398 Montpellier, France
- ASTRE,
Univ. Montpellier, CIRAD, INRAE, F-34398 Montpellier, France
| | - Matthieu Jules
- Université
Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, F-78350 Jouy-en-Josas, France
| | - Pascal Sirand-Pugnet
- Univ.
Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, F-33140 Villenave
d’Ornon, France
| | - Alain Blanchard
- Univ.
Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, F-33140 Villenave
d’Ornon, France
| | - Carole Lartigue
- Univ.
Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, F-33140 Villenave
d’Ornon, France
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7
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Sugimoto J, Schust DJ, Sugimoto M, Jinno Y, Kudo Y. Controlling Trophoblast Cell Fusion in the Human Placenta-Transcriptional Regulation of Suppressyn, an Endogenous Inhibitor of Syncytin-1. Biomolecules 2023; 13:1627. [PMID: 38002309 PMCID: PMC10668956 DOI: 10.3390/biom13111627] [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: 08/14/2023] [Revised: 10/24/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
Cell fusion in the placenta is tightly regulated. Suppressyn is a human placental endogenous retroviral protein that inhibits the profusogenic activities of another well-described endogenous retroviral protein, syncytin-1. In this study, we aimed to elucidate the mechanisms underlying suppressyn's placenta-specific expression. We identified the promoter region and a novel enhancer region for the gene encoding suppressyn, ERVH48-1, and examined their regulation via DNA methylation and their responses to changes in the oxygen concentration. Like other endogenous retroviral genes, the ERVH48-1 promoter sequence is found within a characteristic retroviral 5' LTR sequence. The novel enhancer sequence we describe here is downstream of this LTR sequence (designated EIEs: ERV internal enhancer sequence) and governs placental expression. The placenta-specific expression of ERVH48-1 is tightly controlled by DNA methylation and further regulated by oxygen concentration-dependent, hypoxia-induced transcription factors (HIF1α and HIF2α). Our findings highlight the involvement of (1) tissue specificity through DNA methylation, (2) expression specificity through placenta-specific enhancer regions, and (3) the regulation of suppressyn expression in differing oxygen conditions by HIF1α and HIF2α. We suggest that these regulatory mechanisms are central to normal and abnormal placental development, including the development of disorders of pregnancy involving altered oxygenation, such as preeclampsia, pregnancy-induced hypertension, and fetal growth restriction.
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Affiliation(s)
- Jun Sugimoto
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Hiroshima University, Hiroshima 734-8551, Japan (Y.K.)
| | - Danny J. Schust
- Department of Obstetrics and Gynecology, Duke University, Durham, NC 27710, USA
| | - Makiko Sugimoto
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Hiroshima University, Hiroshima 734-8551, Japan (Y.K.)
| | - Yoshihiro Jinno
- Department of Molecular Biology, University of the Ryukyus, Okinawa 903-0215, Japan
| | - Yoshiki Kudo
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Hiroshima University, Hiroshima 734-8551, Japan (Y.K.)
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8
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Kumazaki T, Yonekawa C, Tsubouchi T. Microscopic Analysis of Cell Fate Alteration Induced by Cell Fusion. Cell Reprogram 2023; 25:251-259. [PMID: 37847898 DOI: 10.1089/cell.2023.0073] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023] Open
Abstract
In mammals, differentiated cells generally do not de-differentiate nor undergo cell fate alterations. However, they can be experimentally guided toward a different lineage. Cell fusion involving two different cell types has long been used to study this process, as this method induces cell fate alterations within hours to days in a subpopulation of fused cells, as evidenced by changes in gene-expression profiles. Despite the robustness of this system, its use has been restricted by low fusion rates and difficulty in eliminating unfused populations, thereby compromising resolution. In this study, we address these limitations by isolating fused cells using antibody-conjugated beads. This approach enables the microscopic tracking of fused cells starting as early as 5 hours after fusion. By taking advantage of species-specific FISH probes, we show that a small population of fused cells resulting from the fusion of mouse ES and human B cells, expresses OCT4 from human nuclei at levels comparable to human induced pluripotent stem cells (iPSCs) as early as 25 hours after fusion. We also show that this response can vary depending on the fusion partner. Our study broadens the usage of the cell fusion system for comprehending the mechanisms underlying cell fate alterations. These findings hold promise for diverse fields, including regenerative medicine and cancer.
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Affiliation(s)
- Taisei Kumazaki
- Laboratory of Stem Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki, 444-8585, Japan
- The Graduate University for Advanced Studies, SOKENDAI, Shonah Village, Hayama, 240-0193, Japan
| | - Chinatsu Yonekawa
- Laboratory of Stem Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki, 444-8585, Japan
| | - Tomomi Tsubouchi
- Laboratory of Stem Cell Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki, 444-8585, Japan
- The Graduate University for Advanced Studies, SOKENDAI, Shonah Village, Hayama, 240-0193, Japan
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9
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Han D, He X, Huang Y, Gao M, Guo T, Ren X, Liao X, Chen X, Pang X, Cheng S. A Multifunctional Delivery System for Remodulating Cell Behaviors of Circulating Malignant Cells to Prevent Cell Fusion. Adv Sci (Weinh) 2023; 10:e2303309. [PMID: 37590231 PMCID: PMC10582411 DOI: 10.1002/advs.202303309] [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] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/30/2023] [Indexed: 08/19/2023]
Abstract
Cell fusion plays a critical role in cancer progression and metastasis. However, effective modulation of the cell fusion behavior and timely evaluation on the cell fusion to provide accurate information for personalized therapy are facing challenges. Here, it demonstrates that the cancer cell fusion behavior can be efficiently modulated and precisely detected through employing a multifunctional delivery vector to realize cancer targeting delivery of a genome editing plasmid and a molecular beacon-based AND logic gate. The multifunctional delivery vector decorated by AS1411 conjugated hyaluronic acid and NLS-GE11 peptide conjugated hyaluronic acid can specifically target circulating malignant cells (CMCs) of cancer patients to deliver the genome editing plasmid for epidermal growth factor receptor (EGFR) knockout. The cell fusion between CMCs and endothelial cells can be detected by the AND logic gate delivered by the multifunctional vector. After EGFR knockout, the edited CMCs exhibit dramatically inhibited cell fusion capability, while unedited CMCs can easily fuse with human umbilical vein endothelial cells (HUVEC) to form hybrid cells. This study provides a new therapeutic strategy for preventing cancer progression and a reliable tool for evaluating cancer cell fusion for precise personalized therapy.
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Affiliation(s)
- Di Han
- Key Laboratory of Biomedical Polymers of Ministry of EducationDepartment of ChemistryWuhan UniversityWuhanHubei430072China
| | - Xiao‐Yan He
- School of Life SciencesAnhui Medical UniversityHefeiAnhui230011China
| | - Yun Huang
- Department of Respiratory and Critical Care MedicineThe First Affiliated Hospital of Anhui Medical UniversityAnhui Public Health Clinical CenterHefeiAnhui230011China
| | - Min Gao
- Department of Respiratory and Critical Care MedicineThe First Affiliated Hospital of Anhui Medical UniversityAnhui Public Health Clinical CenterHefeiAnhui230011China
| | - Tao Guo
- Department of Thyroid and Breast SurgeryThe First Affiliated Hospital of Anhui Medical UniversityAnhui Public Health Clinical CenterHefeiAnhui230011China
| | - Xiao‐He Ren
- Key Laboratory of Biomedical Polymers of Ministry of EducationDepartment of ChemistryWuhan UniversityWuhanHubei430072China
| | - Xin‐Ru Liao
- Key Laboratory of Biomedical Polymers of Ministry of EducationDepartment of ChemistryWuhan UniversityWuhanHubei430072China
| | - Xue‐Si Chen
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchunJilin130022China
| | - Xuan Pang
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchunJilin130022China
| | - Si‐Xue Cheng
- Key Laboratory of Biomedical Polymers of Ministry of EducationDepartment of ChemistryWuhan UniversityWuhanHubei430072China
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10
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Hazra S, Kalyan Dinda S, Kumar Mondal N, Hossain SR, Datta P, Yasmin Mondal A, Malakar P, Manna D. Giant cells: multiple cells unite to survive. Front Cell Infect Microbiol 2023; 13:1220589. [PMID: 37790914 PMCID: PMC10543420 DOI: 10.3389/fcimb.2023.1220589] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/26/2023] [Indexed: 10/05/2023] Open
Abstract
Multinucleated Giant Cells (MGCs) are specialized cells that develop from the fusion of multiple cells, and their presence is commonly observed in human cells during various infections. However, MGC formation is not restricted to infections alone but can also occur through different mechanisms, such as endoreplication and abortive cell cycle. These processes lead to the formation of polyploid cells, eventually resulting in the formation of MGCs. In Entamoeba, a protozoan parasite that causes amoebic dysentery and liver abscesses in humans, the formation of MGCs is a unique phenomenon and not been reported in any other protozoa. This organism is exposed to various hostile environmental conditions, including changes in temperature, pH, and nutrient availability, which can lead to stress and damage to its cells. The formation of MGCs in Entamoeba is thought to be a survival strategy to cope with these adverse conditions. This organism forms MGCs through cell aggregation and fusion in response to osmotic and heat stress. The MGCs in Entamoeba are thought to have increased resistance to various stresses and can survive longer than normal cells under adverse conditions. This increased survival could be due to the presence of multiple nuclei, which could provide redundancy in case of DNA damage or mutations. Additionally, MGCs may play a role in the virulence of Entamoeba as they are found in the inflammatory foci of amoebic liver abscesses and other infections caused by Entamoeba. The presence of MGCs in these infections suggests that they may contribute to the pathogenesis of the disease. Overall, this article offers valuable insights into the intriguing phenomenon of MGC formation in Entamoeba. By unraveling the mechanisms behind this process and examining its implications, researchers can gain a deeper understanding of the complex biology of Entamoeba and potentially identify new targets for therapeutic interventions. The study of MGCs in Entamoeba serves as a gateway to exploring the broader field of cell fusion in various organisms, providing a foundation for future investigations into related cellular processes and their significance in health and disease.
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Affiliation(s)
- Shreyasee Hazra
- Department of Biomedical Science and Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI), Kolkata, India
| | - Suman Kalyan Dinda
- Department of Biomedical Science and Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI), Kolkata, India
| | - Naba Kumar Mondal
- Department of Biomedical Science and Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI), Kolkata, India
| | - Sk Rajjack Hossain
- Department of Biomedical Science and Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI), Kolkata, India
| | - Pratyay Datta
- Department of Biomedical Science and Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI), Kolkata, India
| | - Afsana Yasmin Mondal
- Institute of Health Sciences, Presidency University, Kolkata, West Bengal, India
| | - Pushkar Malakar
- Department of Biomedical Science and Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI), Kolkata, India
| | - Dipak Manna
- Department of Biomedical Science and Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI), Kolkata, India
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11
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Tcvetkova VS, Pozdnyakov IR, Seliuk AO, Zorina NA, Karpov SA. Vegetative cell fusion and a new stage in the life cycle of the Aphelida (Opisthosporidia). J Eukaryot Microbiol 2023; 70:e12977. [PMID: 37051778 DOI: 10.1111/jeu.12977] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 03/17/2023] [Accepted: 04/05/2023] [Indexed: 04/14/2023]
Abstract
The aphelids, intracellular parasitoids of algae, represent a large cluster of species sister to Fungi in molecular phylogenetic trees. Sharing a common ancestor with Fungi, they are very important in terms of evolution of these groups of Holomycota. Aphelid life cycle being superficially similar to that of Chytridiomycetes is understudied. We have found in the aphelids a new stage-big multiflagellar and amoeboid cells, formed from a plasmodium that has two sorts of nuclei after trophic stage fusion. The families of protein-coding genes involved in the vegetative cell fusion in Opisthokonta were also discussed.
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Affiliation(s)
| | - Igor R Pozdnyakov
- Zoological Institute, Russian Academy of Sciences, St Petersburg, Russia
| | | | | | - Sergey A Karpov
- St Petersburg State University, St Petersburg, Russia
- Zoological Institute, Russian Academy of Sciences, St Petersburg, Russia
- Kashkin Research Institute of Medical Mycology of North-Western State Medical University named after I.I. Mechnikov, St Petersburg, Russia
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12
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Montenegro-Montero A, Goity A, Canessa PF, Larrondo LF. Identification of a common secondary mutation in the Neurospora crassa knockout collection conferring a cell fusion-defective phenotype. Microbiol Spectr 2023; 11:e0208723. [PMID: 37623742 PMCID: PMC10580951 DOI: 10.1128/spectrum.02087-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/12/2023] [Indexed: 08/26/2023] Open
Abstract
Gene-deletion mutants represent a powerful tool to study gene function. The filamentous fungus Neurospora crassa is a well-established model organism, and features a comprehensive gene knockout strain collection. While these mutant strains have been used in numerous studies, resulting in the functional annotation of many Neurospora genes, direct confirmation of gene-phenotype relationships is often lacking, which is particularly relevant given the possibility of background mutations, sample contamination, and/or strain mislabeling. Indeed, spontaneous mutations resulting in phenotypes resembling many cell fusion mutants have long been known to occur at relatively high frequency in N. crassa, and these secondary mutations are common in the Neurospora deletion collection. The identity of these mutations, however, is largely unknown. Here, we report that the Δada-3 strain from the N. crassa knockout collection, which exhibits a cell fusion defect, harbors a secondary mutation responsible for this phenotype. Through whole-genome sequencing and genetic analyses, we found a ~30-Kb deletion in this strain affecting a known cell fusion-related gene, so/ham-1, and show that it is the absence of this gene-and not of ada-3-that underlies its cell fusion defect. We additionally found three other knockout strains harboring the same deletion, suggesting that this mutation may be common in the collection and could have impacted previous studies. Our findings provide a cautionary note and highlight the importance of proper functional validation of strains from mutant collections. We discuss our results in the context of the spread of cell fusion-defective cheater variants in N. crassa cultures. IMPORTANCE This study emphasizes the need for careful and detailed characterization of strains from mutant collections. Specifically, we found a common deletion in various strains from the Neurospora crassa gene knockout collection that results in a cell fusion-defective phenotype. This is noteworthy because this collection is known to contain background mutations-of a largely unclear nature-that produce cell fusion-defective phenotypes. Our results describe an example of such mutations, and highlight how this common genetic defect could have impacted previous studies that have used the affected strains. Furthermore, they provide a cautionary note about the use of Neurospora strains with similar phenotypes. Lastly, these findings offer additional details relevant to our understanding of the origin and spread of cell fusion-defective cheater variants in N. crassa cultures.
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Affiliation(s)
- Alejandro Montenegro-Montero
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Agencia Nacional de Investigación y Desarrollo-Millennium Science Initiative Program, Millennium Institute for Integrative Biology, Santiago, Chile
| | - Alejandra Goity
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Agencia Nacional de Investigación y Desarrollo-Millennium Science Initiative Program, Millennium Institute for Integrative Biology, Santiago, Chile
| | - Paulo F. Canessa
- Agencia Nacional de Investigación y Desarrollo-Millennium Science Initiative Program, Millennium Institute for Integrative Biology, Santiago, Chile
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Luis F. Larrondo
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Agencia Nacional de Investigación y Desarrollo-Millennium Science Initiative Program, Millennium Institute for Integrative Biology, Santiago, Chile
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13
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Mela AP, Glass NL. Permissiveness and competition within and between Neurospora crassa syncytia. Genetics 2023; 224:iyad112. [PMID: 37313736 PMCID: PMC10411585 DOI: 10.1093/genetics/iyad112] [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: 03/14/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 06/15/2023] Open
Abstract
A multinucleate syncytium is a common growth form in filamentous fungi. Comprehensive functions of the syncytial state remain unknown, but it likely allows for a wide range of adaptations to enable filamentous fungi to coordinate growth, reproduction, responses to the environment, and to distribute nuclear and cytoplasmic elements across a colony. Indeed, the underlying mechanistic details of how syncytia regulate cellular and molecular processes spatiotemporally across a colony are largely unexplored. Here, we implemented a strategy to analyze the relative fitness of different nuclear populations in syncytia of Neurospora crassa, including nuclei with loss-of-function mutations in essential genes, based on production of multinucleate asexual spores using flow cytometry of pairings between strains with differentially fluorescently tagged nuclear histones. The distribution of homokaryotic and heterokaryotic asexual spores in pairings was assessed between different auxotrophic and morphological mutants, as well as with strains that were defective in somatic cell fusion or were heterokaryon incompatible. Mutant nuclei were compartmentalized into both homokaryotic and heterokaryotic asexual spores, a type of bet hedging for maintenance and evolution of mutational events, despite disadvantages to the syncytium. However, in pairings between strains that were blocked in somatic cell fusion or were heterokaryon incompatible, we observed a "winner-takes-all" phenotype, where asexual spores originating from paired strains were predominantly one genotype. These data indicate that syncytial fungal cells are permissive and tolerate a wide array of nuclear functionality, but that cells/colonies that are unable to cooperate via syncytia formation actively compete for resources.
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Affiliation(s)
- Alexander P Mela
- The Plant and Microbial Biology Department, University of California Berkeley, Berkeley, CA 94720, USA
| | - N Louise Glass
- The Plant and Microbial Biology Department, University of California Berkeley, Berkeley, CA 94720, USA
- The Environmental Genomics and Systems Biology Division, The Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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14
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Skandorff I, Gille J, Ragonnaud E, Andersson AM, Schrödel S, Thirion C, Wagner R, Holst PJ. The Insertion of an Evolutionary Lost Four-Amino-Acid Cytoplasmic Tail Peptide into a Syncytin-1 Vaccine Increases T- and B-Cell Responses in Mice. Viruses 2023; 15:1686. [PMID: 37632028 PMCID: PMC10458386 DOI: 10.3390/v15081686] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
Human endogenous retrovirus type W (HERV-W) is expressed in various cancers. We previously developed an adenovirus-vectored cancer vaccine targeting HERV-W by encoding an assembled HERV-W group-specific antigen sequence and the HERV-W envelope sequence Syncytin-1. Syncytin-1 is constitutively fusogenic and forms large multinucleated cell fusions when overexpressed. Consequently, immunising humans with a vaccine encoding Syncytin-1 can lead to the formation of extensive syncytia, which is undesirable and poses a potential safety issue. Here, we show experiments in cell lines that restoring an evolutionary lost cleavage site of the fusion inhibitory R-peptide of Syncytin-1 inhibit cell fusion. Interestingly, this modification of the HERV-W vaccine's fusogenicity increased the expression of the vaccine antigens in vitro. It also enhanced Syncytin-1-specific antibody responses and CD8+-mediated T-cell responses compared to the wildtype vaccine in vaccinated mice, with a notable enhancement in responses to subdominant T-cell epitopes but equal responses to dominant epitopes and similar rates of survival following a tumour challenge. The impairment of cell-cell fusion and the enhanced immunogenicity profile of this HERV-W vaccine strengthens the prospects of obtaining a meaningful immune response against HERV-W in patients with HERV-W-overexpressing cancers.
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Affiliation(s)
- Isabella Skandorff
- Department of Immunology and Microbiology, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark;
- InProTher, COBIS, Ole Maaloesvej 3, 2200 Copenhagen, Denmark; (E.R.); (A.-M.A.)
| | - Jasmin Gille
- Institute of Medical Microbiology and Hygiene, Molecular Microbiology, University of Regensburg Germany, 93053 Regensburg, Germany; (J.G.); (R.W.)
| | - Emeline Ragonnaud
- InProTher, COBIS, Ole Maaloesvej 3, 2200 Copenhagen, Denmark; (E.R.); (A.-M.A.)
- Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | | | - Silke Schrödel
- Sirion Biotech GmbH, Am Haag 6, 82166 Graefelfing, Germany; (S.S.); (C.T.)
| | - Christian Thirion
- Sirion Biotech GmbH, Am Haag 6, 82166 Graefelfing, Germany; (S.S.); (C.T.)
| | - Ralf Wagner
- Institute of Medical Microbiology and Hygiene, Molecular Microbiology, University of Regensburg Germany, 93053 Regensburg, Germany; (J.G.); (R.W.)
| | - Peter Johannes Holst
- InProTher, COBIS, Ole Maaloesvej 3, 2200 Copenhagen, Denmark; (E.R.); (A.-M.A.)
- Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
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15
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Hindi SM, Petrany MJ, Greenfeld E, Focke LC, Cramer AAW, Whitt MA, Khairallah RJ, Ward CW, Chamberlain JS, Podbilewicz B, Prasad V, Millay DP. Enveloped viruses pseudotyped with mammalian myogenic cell fusogens target skeletal muscle for gene delivery. Cell 2023; 186:2062-2077.e17. [PMID: 37075755 DOI: 10.1016/j.cell.2023.03.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 06/28/2022] [Revised: 02/08/2023] [Accepted: 03/28/2023] [Indexed: 04/21/2023]
Abstract
Entry of enveloped viruses into cells is mediated by viral fusogenic proteins that drive membrane rearrangements needed for fusion between viral and target membranes. Skeletal muscle development also requires membrane fusion events between progenitor cells to form multinucleated myofibers. Myomaker and Myomerger are muscle-specific cell fusogens but do not structurally or functionally resemble classical viral fusogens. We asked whether the muscle fusogens could functionally substitute for viral fusogens, despite their structural distinctiveness, and fuse viruses to cells. We report that engineering of Myomaker and Myomerger on the membrane of enveloped viruses leads to specific transduction of skeletal muscle. We also demonstrate that locally and systemically injected virions pseudotyped with the muscle fusogens can deliver μDystrophin to skeletal muscle of a mouse model of Duchenne muscular dystrophy and alleviate pathology. Through harnessing the intrinsic properties of myogenic membranes, we establish a platform for delivery of therapeutic material to skeletal muscle.
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Affiliation(s)
- Sajedah M Hindi
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Michael J Petrany
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Elena Greenfeld
- Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Leah C Focke
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Alyssa A W Cramer
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Michael A Whitt
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA
| | | | - Christopher W Ward
- Department of Orthopedics and Center for Biomedical Engineering and Technology (BioMET), University of Maryland School of Medicine, Baltimore, MD, USA
| | - Jeffrey S Chamberlain
- Departments of Neurology, Medicine and Biochemistry, Wellstone Muscular Dystrophy Specialized Research Center, University of Washington School of Medicine, Seattle, WA, USA
| | | | - Vikram Prasad
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Douglas P Millay
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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16
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Minowa T, Hirohashi Y, Murata K, Sasaki K, Handa T, Nakatsugawa M, Mizue Y, Murai A, Kubo T, Kanaseki T, Tsukahara T, Iwabuchi S, Hashimoto S, Ishida-Yamamoto A, Uhara H, Torigoe T. Fusion with type 2 macrophages induces melanoma cell heterogeneity that potentiates immunological escape from cytotoxic T lymphocytes. J Pathol 2023. [PMID: 37138382 DOI: 10.1002/path.6083] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 03/05/2023] [Accepted: 03/27/2023] [Indexed: 05/05/2023]
Abstract
Evasion from immunity is a major obstacle to the achievement of successful cancer immunotherapy. Hybrids derived from cell-cell fusion are theoretically associated with tumor heterogeneity and progression by conferring novel properties on tumor cells, including drug resistance and metastatic capacity; however, their impact on immune evasion remains unknown. Here, we investigated the potency of tumor-macrophage hybrids in immune evasion. Hybrids were established by co-culture of a melanoma cell line (A375 cells) and type 2 macrophages. The hybrids showed greater migration ability and greater tumorigenicity than the parental melanoma cells. The hybrids showed heterogeneous sensitivity to New York esophageal squamous cell carcinoma-1 (NY-ESO-1)-specific T-cell receptor-transduced T (TCR-T) cells and two out of four hybrid clones showed less sensitivity to TCR-T compared with the parental cells. An in vitro tumor heterogeneity model revealed that the TCR-T cells preferentially killed the parental cells compared with the hybrids and the survival rate of the hybrids was higher than that of the parental cells, indicating that the hybrids evade killing by TCR-T cells efficiently. Analysis of a single-cell RNA sequencing dataset of patients with melanoma revealed that a few macrophages expressed RNA encoding melanoma differentiation antigens including melan A, tyrosinase, and premelanosome protein, which indicated the presence of hybrids in primary melanoma. In addition, the number of potential hybrids was correlated with a poorer response to immune checkpoint blockade. These results provide evidence that melanoma-macrophage fusion has a role in tumor heterogeneity and immune evasion. © 2023 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Tomoyuki Minowa
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
- Department of Dermatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yoshihiko Hirohashi
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kenji Murata
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kenta Sasaki
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
- Department of Dermatology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Toshiya Handa
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
- Department of Dermatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Munehide Nakatsugawa
- Department of Pathology, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - Yuka Mizue
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Aiko Murai
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Terufumi Kubo
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tomohide Tsukahara
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Sadahiro Iwabuchi
- Department of Molecular Pathophysiology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama, Japan
| | - Shinichi Hashimoto
- Department of Molecular Pathophysiology, Institute of Advanced Medicine, Wakayama Medical University, Wakayama, Japan
| | | | - Hisashi Uhara
- Department of Dermatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
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17
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Lazebnik Y. Adopted neoplastic cells and the consequences of their existence. Oncotarget 2023; 14:321-341. [PMID: 37057881 PMCID: PMC10103597 DOI: 10.18632/oncotarget.28408] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023] Open
Abstract
A view that guides the bulk of cancer research and oncology posits that each neoplastic cell in a tumor is a genetic offspring of another neoplastic cell. Yet, analyzing tumors from transplant patients has revealed that some normal migratory cells adopt the phenotype of neoplastic cells without acquiring their genome, thus becoming what I suggest to call adopted neoplastic cells. This commentary reviews the evidence for the existence of adopted neoplastic cells, outlines the consequences of their presence, and discusses what kind of cells can be adopted, how, and why.
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18
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Chang CY, Tai JA, Sakaguchi Y, Nishikawa T, Hirayama Y, Yamashita K. Enhancement of polyethylene glycol- cell fusion efficiency by novel application of transient pressure using a jet injector. FEBS Open Bio 2023; 13:478-489. [PMID: 36651034 PMCID: PMC9989930 DOI: 10.1002/2211-5463.13557] [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: 06/28/2022] [Revised: 12/14/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Cell-cell fusion involves the fusion of somatic cells into a single hybrid cell. It is not only a physiological process but also an important cell engineering technology which can be applied to various fields, such as regenerative medicine, antibody engineering, genetic engineering, and cancer therapy. There are three major methods of cell fusion: electrical cell fusion, polyethylene glycol (PEG) cell fusion, and virus-mediated cell fusion. Although PEG cell fusion is the most economical approach and does not require expensive instrumentation, it has a poor fusion rate and induces a high rate of cell cytotoxicity. To improve the fusion rate of the PEG method, we combined it with the pyro-drive jet injector (PJI). PJI provides instant pressure instead of cell agitation to increase the probability of cell-to-cell contact and shorten the distance between cells in the process of cell fusion. Here, we report that this improved fusion method not only decreased cell cytotoxicity during the fusion process, but also increased fusion rate compared with the conventional PEG method. Furthermore, we tested the functionality of cells fused using the PJI-PEG method and found them to be comparable to those fused using the conventional PEG method in terms of their application for dendritic cell (DC)-tumor cell fusion vaccine production; in addition, the PJI-PEG method demonstrated excellent performance in hybridoma cell preparation. Taken together, our data indicate that this method improves cell fusion efficiency as compared to the PEG method and thus has the potential for use in various applications that require cell fusion technology.
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Affiliation(s)
- Chin Yang Chang
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Japan
| | - Jiayu A Tai
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Japan
| | - Yuko Sakaguchi
- Medical Device Division, Industry Business Unit, Safety Strategic Business Unit, Daicel Co., Osaka, Japan
| | - Tomoyuki Nishikawa
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Japan
| | - Yayoi Hirayama
- Medical Device Division, Industry Business Unit, Safety Strategic Business Unit, Daicel Co., Osaka, Japan
| | - Kunihiko Yamashita
- Department of Device Application for Molecular Therapeutics, Graduate School of Medicine, Osaka University, Japan.,Medical Device Division, Industry Business Unit, Safety Strategic Business Unit, Daicel Co., Osaka, Japan.,Medical Device Development, Medical Device Division, Industry Business Unit, Safety Strategic Business Unit, Daicel Co., Osaka, Japan
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19
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Gundling WE, Post S, Illsley NP, Echalar L, Zamudio S, Wildman DE. Ancestry dependent balancing selection of placental dysferlin at high-altitude. Front Cell Dev Biol 2023; 11:1125972. [PMID: 37025168 PMCID: PMC10070852 DOI: 10.3389/fcell.2023.1125972] [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: 12/16/2022] [Accepted: 03/06/2023] [Indexed: 04/08/2023] Open
Abstract
Introduction: The placenta mediates fetal growth by regulating gas and nutrient exchange between the mother and the fetus. The cell type in the placenta where this nutrient exchange occurs is called the syncytiotrophoblast, which is the barrier between the fetal and maternal blood. Residence at high-altitude is strongly associated with reduced 3rd trimester fetal growth and increased rates of complications such as preeclampsia. We asked whether altitude and/or ancestry-related placental gene expression contributes to differential fetal growth under high-altitude conditions, as native populations have greater fetal growth than migrants to high-altitude. Methods: We have previously shown that methylation differences largely accounted for altitude-associated differences in placental gene expression that favor improved fetal growth among high-altitude natives. We tested for differences in DNA methylation between Andean and European placental samples from Bolivia [La Paz (∼3,600 m) and Santa Cruz, Bolivia (∼400 m)]. One group of genes showing significant altitude-related differences are those involved in cell fusion and membrane repair in the syncytiotrophoblast. Dysferlin (DYSF) shows greater expression levels in high- vs. low-altitude placentas, regardless of ancestry. DYSF has a single nucleotide variant (rs10166384;G/A) located at a methylation site that can potentially stimulate or repress DYSF expression. Following up with individual DNA genotyping in an expanded sample size, we observed three classes of DNA methylation that corresponded to individual genotypes of rs10166384 (A/A < A/G < G/G). We tested whether these genotypes are under Darwinian selection pressure by sequencing a ∼2.5 kb fragment including the DYSF variants from 96 Bolivian samples and compared them to data from the 1000 genomes project. Results: We found that balancing selection (Tajima's D = 2.37) was acting on this fragment among Andeans regardless of altitude, and in Europeans at high-altitude (Tajima's D = 1.85). Discussion: This supports that balancing selection acting on dysferlin is capable of altering DNA methylation patterns based on environmental exposure to high-altitude hypoxia. This finding is analogous to balancing selection seen frequency-dependent selection, implying both alleles are advantageous in different ways depending on environmental circumstances. Preservation of the adenine (A) and guanine (G) alleles may therefore aid both Andeans and Europeans in an altitude dependent fashion.
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Affiliation(s)
- William E. Gundling
- Department of Biology, Christian Brothers University, Memphis, TN, United States
- *Correspondence: Derek E. Wildman, ; William E. Gundling,
| | - Sasha Post
- College of Public Health, University of South Florida, Tampa, FL, United States
| | | | - Lourdes Echalar
- Instituto Boliviano de Biología de Altura, Universidad de San Andreas Mayor, La Paz, Bolivia
| | - Stacy Zamudio
- Placental Research Group LLC., Maplewood, NJ, United States
| | - Derek E. Wildman
- College of Public Health, University of South Florida, Tampa, FL, United States
- *Correspondence: Derek E. Wildman, ; William E. Gundling,
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Okeyo KO, Hiyaji R, Oana H. A single-cell surgery microfluidic device for transplanting tumor cytoplasm into dendritic cells without nuclei mixing. Biotechnol J 2023; 18:e2200135. [PMID: 36412930 DOI: 10.1002/biot.202200135] [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: 06/18/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 11/23/2022]
Abstract
This study aimed to demonstrate the feasibility of generating tumor cell vaccine models by single-cell surgery in a microfluidic device that integrates one-to-one electrofusion, shear flow reseparation, and on-device culture. The device was microfabricated from polydimethylsiloxane (PDMS) and consisted of microorifices (aperture size: ∼3 μm) for one-to-one fusion, and microcages for on-device culture. Using the device, we could achieve one-to-one electrofusion of leukemic plasmacytoid dendritic cells (DC-like cells) and Jurkat cells with a fusion efficiency of ∼ 80%. Fusion via the narrow microorifices allowed DC-like cells to acquire cytoplasmic contents of the Jurkat cells while preventing nuclei mixing. After fusion, the DC-like cells were selectively reseparated from the Jurkat cells by shear flow application to generate tumor nuclei-free antigen-recipient DC-like (tarDC-like) cells. When cultured as single cells on the device, these cells could survive under gentle medium perfusion with a median survival time of 11.5 h, although a few cells could survive longer than 36 h. Overall, this study demonstrates single-cell surgery in a microfluidic device for potential generation of dendritic cell vaccines which are uncontaminated with tumor nucleic materials. We believe that this study will inspire the generation of safer tumor cell vaccines for cancer immunotherapy.
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Affiliation(s)
- Kennedy Omondi Okeyo
- Institute for Life and Medical Sciences, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Ryuta Hiyaji
- Department of Mechanical Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Hidehiro Oana
- Department of Mechanical Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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21
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Li X, Yuan H, Li X, Wang H. Spike protein mediated membrane fusion during SARS-CoV-2 infection. J Med Virol 2023; 95:e28212. [PMID: 36224449 PMCID: PMC9874878 DOI: 10.1002/jmv.28212] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/15/2022] [Accepted: 10/10/2022] [Indexed: 01/27/2023]
Abstract
The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has posed a serious threat to public health and has quickly become a global concern. The infection of SARS-CoV-2 begins with the binding of its spike protein to the receptor-angiotensin-converting enzyme 2 (ACE2), which, after a series of conformation changes, results in the fusion of viral-cell membranes and the release of the viral RNA genome into the cytoplasm. In addition, infected host cells can express spike protein on their cell surface, which will interact with ACE2 on neighboring cells, leading to cell membrane fusion and the formation of multinucleated cells or syncytia. Both viral entry and syncytia formation are mediated by spike-ACE2 interaction and share some common mechanisms of membrane fusion. Here in this review, we will summarize our current understanding of spike-mediated membrane fusion, which may shed light on future broad-spectrum antiviral development.
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Affiliation(s)
- Xinyu Li
- Department of Pathogen Biology and ImmunologyXi'an Jiaotong University Health Science CenterXi'anChina
| | - Huijun Yuan
- Department of Pathogen Biology and ImmunologyXi'an Jiaotong University Health Science CenterXi'anChina
| | - Xiaozhen Li
- Department of Pathogen Biology and ImmunologyXi'an Jiaotong University Health Science CenterXi'anChina
| | - Hongliang Wang
- Department of Pathogen Biology and ImmunologyXi'an Jiaotong University Health Science CenterXi'anChina
- Key Laboratory of Environment and Genes Related to DiseasesXi'an Jiaotong UniversityXi'anChina
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22
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Arteaga JA, Guerrero CA. RANKL interferes with osteoclastogenesis in PEG-fused U937 cells through LGR4. Connect Tissue Res 2023; 64:40-52. [PMID: 35726900 DOI: 10.1080/03008207.2022.2090350] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
INTRODUCTION RANKL plays an important role in the differentiation and maturation process of preosteoclast cells. The osteoclast is a multinucleated cell that can have various sizes and a variable number of nuclei. However, there are no models that allow us to understand how successive cell fusions have a limit, or how cell fusion is regulated. METHODOLOGY The present investigation was aimed to determine whether fusing U937 cells with PEG to generate osteoclast-like cells expresses LGR4 and whether applying RANKL to these cells modifies osteoclastic activity compared to non-PEG-fused and RANKL-treated cells. RESULTS By fusing U937 cells with PEG, it was found that the LGR4 receptor expression was promoted as early as 24 hours of culture. Applying RANKL before or after fusion inhibits osteoclastic activity. Interfering RANKL interaction with LGR4 in PEG-treated cells recovers and increases cell fusion and osteoclastic activity. PEG-fused U937 cells show osteoclast markers similar to those observed in the classical RANKL-stimulated cell model. CONCLUSION Our model allows us to understand that RANKL has fusogenic activity during the first days of culture and in fused cells modulates fusion, contributing to differentiate the role of RANKL before and after fusion through LGR4.
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Affiliation(s)
| | - Carlos A Guerrero
- Laboratory of Molecular Biology of Viruses, Department of Physiological Sciences, Universidad Nacional de Colombia, Bogota, Colombia
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23
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Ruano APC, Gadelha Guimarães AP, Braun AC, Flores BCTCP, Tariki MS, Abdallah EA, Torres JA, Nunes DN, Tirapelli B, de Lima VCC, Fanelli MF, Colombo PE, da Costa AABA, Alix-Panabières C, Chinen LTD. Fusion Cell Markers in Circulating Tumor Cells from Patients with High-Grade Ovarian Serous Carcinoma. Int J Mol Sci 2022; 23. [PMID: 36499015 DOI: 10.3390/ijms232314687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/25/2022] [Accepted: 11/03/2022] [Indexed: 11/26/2022] Open
Abstract
Cancer is primarily a disease in which late diagnosis is linked to poor prognosis, and unfortunately, detection and management are still challenging. Circulating tumor cells (CTCs) are a potential resource to address this disease. Cell fusion, an event discovered recently in CTCs expressing carcinoma and leukocyte markers, occurs when ≥2 cells become a single entity (hybrid cell) after the merging of their plasma membranes. Cell fusion is still poorly understood despite continuous evaluations in in vitro/in vivo studies. Blood samples from 14 patients with high-grade serous ovarian cancer (A.C. Camargo Cancer Center, São Paulo, Brazil) were collected with the aim to analyze the CTCs/hybrid cells and their correlation to clinical outcome. The EDTA collected blood (6 mL) from patients was used to isolate/identify CTCs/hybrid cells by ISET. We used markers with possible correlation with the phenomenon of cell fusion, such as MC1-R, EpCAM and CD45, as well as CEN8 expression by CISH analysis. Samples were collected at three timepoints: baseline, after one month (first follow-up) and after three months (second follow-up) of treatment with olaparib (total sample = 38). Fourteen patients were included and in baseline and first follow-up all patients showed at least one CTC. We found expression of MC1-R, EpCAM and CD45 in cells (hybrid) in at least one of the collection moments. Membrane staining with CD45 was found in CTCs from the other cohort, from the other center, evaluated by the CellSearch® system. The presence of circulating tumor microemboli (CTM) in the first follow-up was associated with a poor recurrence-free survival (RFS) (5.2 vs. 12.2 months; p = 0.005). The MC1-R expression in CTM in the first and second follow-ups was associated with a shorter RFS (p = 0.005). CEN8 expression in CTCs was also related to shorter RFS (p = 0.035). Our study identified a high prevalence of CTCs in ovarian cancer patients, as well as hybrid cells. Both cell subtypes demonstrate utility in prognosis and in the assessment of response to treatment. In addition, the expression of MC1-R and EpCAM in hybrid cells brings new perspectives as a possible marker for this phenomenon in ovarian cancer.
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Risner KH, Tieu KV, Wang Y, Getz M, Bakovic A, Bhalla N, Nathan SD, Conway DE, Macklin P, Narayanan A, Alem F. Maraviroc inhibits SARS-CoV-2 multiplication and s-protein mediated cell fusion in cell culture. bioRxiv 2022:2020.08.12.246389. [PMID: 32817953 PMCID: PMC7430595 DOI: 10.1101/2020.08.12.246389] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In an effort to identify therapeutic intervention strategies for the treatment of COVID-19, we have investigated a selection of FDA-approved small molecules and biologics that are commonly used to treat other human diseases. A investigation into 18 small molecules and 3 biologics was conducted in cell culture and the impact of treatment on viral titer was quantified by plaque assay. The investigation identified 4 FDA-approved small molecules, Maraviroc, FTY720 (Fingolimod), Atorvastatin and Nitazoxanide that were able to inhibit SARS-CoV-2 infection. Confocal microscopy with over expressed S-protein demonstrated that Maraviroc reduced the extent of S-protein mediated cell fusion as observed by fewer multinucleate cells in the context of drug-treatment. Mathematical modeling of drug-dependent viral multiplication dynamics revealed that prolonged drug treatment will exert an exponential decrease in viral load in a multicellular/tissue environment. Taken together, the data demonstrate that Maraviroc, Fingolimod, Atorvastatin and Nitazoxanide inhibit SARS-CoV-2 in cell culture.
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Affiliation(s)
- Kenneth H. Risner
- Center for Infectious Disease Research, George Mason University, Manassas, Virginia, United States of America
| | - Katie V. Tieu
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Yafei Wang
- Intellegent Systems Engineering, Indiana University, Bloomington, Indiana, United States of America
| | - Michael Getz
- Intellegent Systems Engineering, Indiana University, Bloomington, Indiana, United States of America
| | - Allison Bakovic
- Center for Infectious Disease Research, George Mason University, Manassas, Virginia, United States of America
| | - Nishank Bhalla
- Center for Infectious Disease Research, George Mason University, Manassas, Virginia, United States of America
| | - Steven D. Nathan
- Advanced Lung Disease and Lung Transplant Program, Inova Fairfax Hospital, Fairfax, Virginia, United States of America
| | - Daniel E. Conway
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Paul Macklin
- Intellegent Systems Engineering, Indiana University, Bloomington, Indiana, United States of America
| | - Aarthi Narayanan
- Center for Infectious Disease Research, George Mason University, Manassas, Virginia, United States of America
- American Type Culture Collection, Manassas, Virginia, United States of America
| | - Farhang Alem
- Center for Infectious Disease Research, George Mason University, Manassas, Virginia, United States of America
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25
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Holmes MJ, Lewis RJ. Bimodal Cell Size and Fusing Cells Observed in a Clonal Culture of the Ciguatoxin-Producing Benthic Dinoflagellate Gambierdiscus (WC1/1). Toxins (Basel) 2022; 14. [PMID: 36356017 DOI: 10.3390/toxins14110767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Cells in a clonal culture of the WC1/1 strain of Gambierdiscus that produced ciguatoxin and maitotoxin-3 were observed to spontaneously fuse during the light phase of culture growth. Cells in the process of fusion were indistinguishable from other cells under the light microscope, except that at least one (often both) of the fusing cells displayed an extendible, finger-like protrusion (presumed peduncle) arising from near the sulcul region. Fusion started with one of the cells turning 90° to place the planes of the girdles approximately at right angles to each other, and movement of the transverse flagella ceased in both cells, or in the cell seen in girdle (lateral) view. The cell in girdle view appeared to fuse into the theca of the other cell. The cell that had turned 90° often rounded up and become egg shaped (obovoid) during early fusion. Fusion can be quick (<10 min) or can take more than an hour. We saw no evidence of the theca being shed during fusion. Measurement of the dorsoventral and transdiameters revealed a wide range for cell sizes that were distributed as a bimodal population in the clonal culture. This bimodal cell population structure was maintained in clonal cultures reisolated from a small or large cell from the original WC1/1 culture. Cellular production of ciguatoxins by the WC1/1 clone increased during the first two years in culture with a corresponding decrease in production of maitotoxin-3, but this inverse relationship was not maintained over the following ~1.5 years.
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26
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Gompels UA, Bravo FJ, Briggs S, Ameri S, Cardin RD, Bernstein DI. Immunisation Using Novel DNA Vaccine Encoding Virus Membrane Fusion Complex and Chemokine Genes Shows High Protection from HSV-2. Viruses 2022; 14:v14112317. [PMID: 36366414 PMCID: PMC9698128 DOI: 10.3390/v14112317] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/07/2022] Open
Abstract
Herpes simplex virus 1 and 2 infections cause high unmet disease burdens worldwide. Mainly HSV-2 causes persistent sexually transmitted disease, fatal neonatal disease and increased transmission of HIV/AIDS. Thus, there is an urgent requirement to develop effective vaccines. We developed nucleic acid vaccines encoding a novel virus entry complex stabilising cell membrane fusion, 'virus-like membranes', VLM. Two dose intramuscular immunisations using DNA expression plasmids in a guinea pig model gave 100% protection against acute disease and significantly reduced virus replication after virus intravaginal challenge. There was also reduced establishment of latency within the dorsal root ganglia and spinal cord, but recurrent disease and recurrent virus shedding remained. To increase cellular immunity and protect against recurrent disease, cDNA encoding an inhibitor of chemokine receptors on T regulatory cells was added and compared to chemokine CCL5 effects. Immunisation including this novel human chemokine gene, newly defined splice variant from an endogenous virus genome, 'virokine immune therapeutic', VIT, protected most guinea pigs from recurrent disease and reduced recurrent virus shedding distinct from a gD protein vaccine similar to that previously evaluated in clinical trials. All DNA vaccines induced significant neutralising antibodies and warrant evaluation for new therapeutic treatments.
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Affiliation(s)
- Ursula A. Gompels
- Virothera, Milner Therapeutics Institute, Cambridge Biomedical Campus, Cambridge CB4 0WS, UK
- Correspondence:
| | - Fernando J. Bravo
- Division of Infectious Diseases, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Sean Briggs
- Virothera, Milner Therapeutics Institute, Cambridge Biomedical Campus, Cambridge CB4 0WS, UK
| | - Shima Ameri
- Virothera, Milner Therapeutics Institute, Cambridge Biomedical Campus, Cambridge CB4 0WS, UK
| | - Rhonda D. Cardin
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - David I. Bernstein
- Division of Infectious Diseases, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH 45221, USA
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27
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Tseng HC, Wu MR, Lee CH, Hsiao JK. Differentiation Capacity of Bone Marrow-Derived Rat Mesenchymal Stem Cells from DsRed and Cre Transgenic Cre/ loxP Models. Cells 2022; 11:2769. [PMID: 36078177 DOI: 10.3390/cells11172769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 11/26/2022] Open
Abstract
Cre/loxP recombination is a well-established technique increasingly used for modifying DNA both in vitro and in vivo. Nucleotide alterations can be edited in the genomes of mammalian cells, and genetic switches can be designed to target the expression or excision of a gene in any tissue at any time in animal models. In this study, we propose a system which worked via the Cre/loxP switch gene and DsRed/emGFP dual-color fluorescence imaging. Mesenchymal stem cells (MSCs) can be used to regenerate damaged tissue because of their differentiation capacity. Although previous studies have presented evidence of fusion of transplanted MSCs with recipient cells, the possibility of fusion in such cases remains debated. Moreover, the effects and biological implications of the fusion of MSCs at the tissue and organ level have not yet been elucidated. Thus, the method for determining this issue is significant and the models we proposed can illustrate the question. However, the transgenic rats exhibited growth slower than that of wild-type rats over several weeks. The effects on the stemness, proliferation, cell cycle, and differentiation ability of bone marrow–derived rat MSCs (BM-rMSCs) from the models were examined to ensure our design was appropriate for the in vivo application. We demonstrated that MSC surface markers were maintained in DsRed and Cre transgenic rMSCs (DsRed-rMSCs and Cre-rMSCs, respectively). A WST-8 assay revealed decreased proliferative activity in these DsRed-rMSCs and Cre-rMSCs; this result was validated through cell counting. Furthermore, cell cycle analysis indicated a decrease in the proportion of G1-phase cells and a concomitant increase in the proportion of S-phase cells. The levels of cell cycle–related proteins also decreased in the DsRed-rMSCs and Cre-rMSCs, implying decelerated phase transition. However, the BM-rMSCs collected from the transgenic rats did not exhibit altered adipogenesis, osteogenesis, or chondrogenesis. The specific markers of these types of differentiation were upregulated after induction. Therefore, BM-rMSCs from DsRed and Cre transgenic models can be used to investigate the behavior of MSCs and related mechanisms. Such application may further the development of stem cell therapy for tissue damage and other diseases.
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28
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Shitut S, Shen MJ, Claushuis B, Derks RJE, Giera M, Rozen D, Claessen D, Kros A. Generating Heterokaryotic Cells via Bacterial Cell- Cell Fusion. Microbiol Spectr 2022; 10:e0169322. [PMID: 35862998 PMCID: PMC9430406 DOI: 10.1128/spectrum.01693-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/22/2022] [Indexed: 11/20/2022] Open
Abstract
Fusion of cells is an important and common biological process that leads to the mixing of cellular contents and the formation of multinuclear cells. Cell fusion occurs when distinct membranes are brought into proximity of one another and merge to become one. Fusion holds promise for biotechnological innovations, for instance, for the discovery of urgently needed new antibiotics. Here, we used antibiotic-producing bacteria that can proliferate without their cell wall as a model to investigate cell-cell fusion. We found that fusion between genetically distinct cells yields heterokaryons that are viable, contain multiple selection markers, and show increased antimicrobial activity. The rate of fusion induced using physical and chemical methods was dependent on membrane fluidity, which is related to lipid composition as a function of cellular age. Finally, by using an innovative system of synthetic membrane-associated lipopeptides, we achieved targeted fusion between distinctly marked cells to further enhance fusion efficiency. These results provide a molecular handle to understand and control cell-cell fusion, which can be used in the future for the discovery of new drugs. IMPORTANCE Cell-cell fusion is instrumental in introducing different sets of genes in the same environment, which subsequently leads to diversity. There is need for new protocols to fuse cells of different types together for biotechnological applications like drug discovery. We present here wall-deficient cells as a platform for the same. We identify the fluidity of the membrane as an important characteristic for the process of fusion. We demonstrate a cell-specific approach for fusion using synthetically designed peptides yielding cells with modified antibiotic production profiles. Overall, wall-deficient cells can be a chassis for innovative metabolite production by providing an alternative method for cell-cell fusion.
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Affiliation(s)
- Shraddha Shitut
- Origins Centre, Groningen, the Netherlands
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
- Institute of Biology, Leiden University, Leiden, the Netherlands
| | - Meng-Jie Shen
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
| | - Bart Claushuis
- Institute of Biology, Leiden University, Leiden, the Netherlands
| | - Rico J. E. Derks
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Martin Giera
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Daniel Rozen
- Institute of Biology, Leiden University, Leiden, the Netherlands
| | - Dennis Claessen
- Institute of Biology, Leiden University, Leiden, the Netherlands
| | - Alexander Kros
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, the Netherlands
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Dai X, Shao Y, Tian X, Cao X, Ye L, Gao P, Cheng H, Wang X. Fusion between Glioma Stem Cells and Mesenchymal Stem Cells Promotes Malignant Progression in 3D-Bioprinted Models. ACS Appl Mater Interfaces 2022; 14:35344-35356. [PMID: 35881920 DOI: 10.1021/acsami.2c06658] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The interaction between glioma stem cells (GSCs) and mesenchymal stem cells (MSCs) in the glioma microenvironment is considered to be an important factor in promoting tumor progression, but the mechanism is still not fully elucidated. To further elucidate the interaction between GSCs and MSCs, two 3D-bioprinted tumor models (low-temperature molding and coaxial bioprinting) were used to simulate the tumor growth microenvironment. Cell fusion between GSCs and MSCs was found by the method of Cre-LoxP switch gene and RFP/GFP dual-color fluorescence tracing. The fused cells coexpressed biomarkers of GSCs and MSCs, showing stronger proliferation, cloning, and invasion abilities than GSCs and MSCs. In addition, the fused cells have stronger tumorigenic properties in nude mice, showing the pathological features of malignant tumors. In conclusion, GSCs and MSCs undergo cell fusion in 3D-bioprinted models, and the fused cells have a higher degree of malignancy than parental cells, which promotes the progression of glioma.
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Affiliation(s)
- Xingliang Dai
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, P. R. China
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei 230032, P. R. China
| | - Yuxuan Shao
- Department of Clinical Medicine, the First Clinical College of Anhui Medical University, Hefei 230032, P. R. China
| | - Xuefeng Tian
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, P. R. China
| | - Xiaoyan Cao
- Department of Clinical Medicine, the First Clinical College of Anhui Medical University, Hefei 230032, P. R. China
| | - Lei Ye
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, P. R. China
| | - Peng Gao
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, P. R. China
| | - Hongwei Cheng
- Department of Neurosurgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, P. R. China
| | - Xianwen Wang
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei 230032, P. R. China
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30
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Kloc M, Uosef A, Subuddhi A, Kubiak JZ, Piprek RP, Ghobrial RM. Giant Multinucleated Cells in Aging and Senescence-An Abridgement. Biology (Basel) 2022; 11:1121. [PMID: 35892977 DOI: 10.3390/biology11081121] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/07/2022] [Accepted: 07/25/2022] [Indexed: 11/17/2022]
Abstract
Simple Summary Aging is a progressive decline of an organism over time. In contrast, senescence occurs throughout an organism’s lifespan. It is a cell-cycle arrest preventing the proliferation of damaged cells. Cellular and molecular senescence timing is crucial for the pace of aging and disease development and progression. The accumulation of senescent cells during a lifespan leads to organismal senescence. Senescent multinucleated giant cells are present in many age-related diseases and cancer. Although senescence was assumed to be irreversible, studies now show that senescent multinucleated giant cells overcome senescence in various cancers, becoming the source of highly aggressive mononucleated stem-like cells, which divide and initiate tumor development and progression. Abstract This review introduces the subject of senescence, aging, and the formation of senescent multinucleated giant cells. We define senescence and aging and describe how molecular and cellular senescence leads to organismal senescence. We review the latest information on senescent cells’ cellular and molecular phenotypes. We describe molecular and cellular features of aging and senescence and the role of multinucleated giant cells in aging-related conditions and cancer. We explain how multinucleated giant cells form and their role in aging arteries and gonads. We also describe how multinucleated giant cells and the reversibility of senescence initiate cancer and lead to cancer progression and metastasis. We also describe molecules and pathways regulating aging and senescence in model systems and their applicability to clinical therapies in age-related diseases.
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31
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Kloc M, Subuddhi A, Uosef A, Kubiak JZ, Ghobrial RM. Monocyte-Macrophage Lineage Cell Fusion. Int J Mol Sci 2022; 23:6553. [PMID: 35742997 DOI: 10.3390/ijms23126553] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 02/06/2023] Open
Abstract
Cell fusion (fusogenesis) occurs in natural and pathological conditions in prokaryotes and eukaryotes. Cells of monocyte–macrophage lineage are highly fusogenic. They create syncytial multinucleated giant cells (MGCs) such as osteoclasts (OCs), MGCs associated with the areas of infection/inflammation, and foreign body-induced giant cells (FBGCs). The fusion of monocytes/macrophages with tumor cells may promote cancer metastasis. We describe types and examples of monocyte–macrophage lineage cell fusion and the role of actin-based structures in cell fusion.
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32
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Zhang Y, Liang P, Yang L, Shan KZ, Feng L, Chen Y, Liedtke W, Coyne CB, Yang H. Functional coupling between TRPV4 channel and TMEM16F modulates human trophoblast fusion. eLife 2022; 11:e78840. [PMID: 35670667 PMCID: PMC9236608 DOI: 10.7554/elife.78840] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/05/2022] [Indexed: 11/15/2022] Open
Abstract
TMEM16F, a Ca2+-activated phospholipid scramblase (CaPLSase), is critical for placental trophoblast syncytialization, HIV infection, and SARS-CoV2-mediated syncytialization, however, how TMEM16F is activated during cell fusion is unclear. Here, using trophoblasts as a model for cell fusion, we demonstrate that Ca2+ influx through the Ca2+ permeable transient receptor potential vanilloid channel TRPV4 is critical for TMEM16F activation and plays a role in subsequent human trophoblast fusion. GSK1016790A, a TRPV4 specific agonist, robustly activates TMEM16F in trophoblasts. We also show that TRPV4 and TMEM16F are functionally coupled within Ca2+ microdomains in a human trophoblast cell line using patch-clamp electrophysiology. Pharmacological inhibition or gene silencing of TRPV4 hinders TMEM16F activation and subsequent trophoblast syncytialization. Our study uncovers the functional expression of TRPV4 and one of the physiological activation mechanisms of TMEM16F in human trophoblasts, thus providing us with novel strategies to regulate CaPLSase activity as a critical checkpoint of physiologically and disease-relevant cell fusion events.
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Affiliation(s)
- Yang Zhang
- Department of Biochemistry, Duke University Medical CenterDurhamUnited States
| | - Pengfei Liang
- Department of Biochemistry, Duke University Medical CenterDurhamUnited States
| | - Liheng Yang
- Department of Molecular Genetics and Microbiology, Duke University Medical CenterDurhamUnited States
| | - Ke Zoe Shan
- Department of Biochemistry, Duke University Medical CenterDurhamUnited States
| | - Liping Feng
- Department of Obstetrics and Gynecology, Duke University Medical CentreDurhamUnited States
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua HospitalShanghaiChina
| | - Yong Chen
- Department of Neurology, Duke University Medical CenterDurhamUnited States
| | - Wolfgang Liedtke
- Department of Neurology, Duke University Medical CenterDurhamUnited States
- Department of Anesthesiology, Duke University Medical CenterDurhamUnited States
- Department of Neurobiology, Duke University Medical CenterDurhamUnited States
- College of Dentistry, Department of Molecular Pathobiology, NYUNew YorkUnited States
| | - Carolyn B Coyne
- Department of Molecular Genetics and Microbiology, Duke University Medical CenterDurhamUnited States
- Duke Human Vaccine Institute, Duke UniversityDurhamUnited States
| | - Huanghe Yang
- Department of Biochemistry, Duke University Medical CenterDurhamUnited States
- Department of Neurobiology, Duke University Medical CenterDurhamUnited States
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Wooding FBP. The Ruminant Placental Trophoblast Binucleate cell - an evolutionary breakthrough. Biol Reprod 2022; 107:705-716. [PMID: 35594454 PMCID: PMC9476219 DOI: 10.1093/biolre/ioac107] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/01/2022] [Accepted: 05/11/2022] [Indexed: 11/17/2022] Open
Abstract
Viviparity and the development of a placenta are two of the major reasons for the success of the mammals in colonizing all habitats, both terrestrial and aquatic. The placenta is an apposition of fetal to maternal tissue which serves two main, but competing functions: to maximize oxygen transfer and the acquisition of nutrients from the mother, but to minimize immunological rejection by the maternal immune system. This has resulted in the evolution of four main types differing in the degree of loss of the maternal uterine epithelial (UE) barrier: epitheliochorial, synepitheliochorial, endotheliochorial, and hemochorial, all providing a successful safe balance between the needs of mother and fetus. Epitheliochorial is the least invasive, a simple apposition and microvillar interdigitation of the apices of uterine epithelium and trophoblast. It is suggested to have evolved as a response to the increase in the size of the animal to provide a sufficiently long gestation to produce a single altricial (run/swim-soon-as-born) neonate as in the Cetartiodactyla. The mother needs to have good control of the fetal demands so the UE barrier is maintained. However, in the synepitheliochorial placenta, characteristic of all ruminants, the fetus has evolved a means of increasing, or at least maintaining, demand without the need for invasion. This has been achieved by the development of the trophoblast binucleate cell which, uniquely, can fuse with a UE cell to form fetomaternal hybrid tissue. This can maintain some maternal barrier function but also deliver fetally synthesized immunomodulatory and metabolic messages to the maternal circulation. This review provides the evidence for this remarkable evolutionary step and also considers an alternative explanation for the formation of the structure of the ruminant placenta.
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Affiliation(s)
- F B P Wooding
- The Physiological Laboratory, University of Cambridge, Downing Site, Cambridge, CB2 3EG
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Ochiai Y, Suzuki C, Segawa K, Uchiyama Y, Nagata S. Inefficient development of syncytiotrophoblasts in the Atp11a-deficient mouse placenta. Proc Natl Acad Sci U S A 2022; 119:e2200582119. [PMID: 35476530 DOI: 10.1073/pnas.2200582119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Plasma membranes are composed of a lipid bilayer in which phosphatidylserine (PtdSer) is confined to the inner leaflet by the action of flippase that translocates PtdSer from the outer to inner leaflets. Two P4-ATPases (ATP11A and ATP11C) work as flippase at plasma membranes. Here, we report that the mouse placenta expresses only ATP11A, and Atp11a-deficient mouse embryos die during embryogenesis due to inefficient formation of syncytiotrophoblasts in the placental labyrinth. The flippase-null mutation inactivates human choriocarcinoma BeWo cells to translocate PtdSer into the inner leaflet and undergo cell fusion. These findings highlight the importance of flippase to regulate the distribution of phospholipids for cell fusion, at least in trophoblast fusion. The P4-ATPases ATP11A and ATP11C function as flippases at the plasma membrane to translocate phosphatidylserine from the outer to the inner leaflet. We herein demonstrated that Atp11a-deficient mouse embryos died at approximately E14.5 with thin-walled heart ventricles. However, the cardiomyocyte- or epiblast-specific Atp11a deletion did not affect mouse development or mortality. ATP11C may have compensated for the function of ATP11A in most of the cell types in the embryo. On the other hand, Atp11a, but not Atp11c, was expressed in the mouse placenta, and the Atp11a-null mutation caused poor development of the labyrinthine layer with an increased number of TUNEL-positive foci. Immunohistochemistry and electron microscopy revealed a disorganized labyrinthine layer with unfused trophoblasts in the Atp11a-null placenta. Human placenta-derived choriocarcinoma BeWo cells expressed the ATP11A and ATP11C genes. A lack of ATP11A and ATP11C eliminated the ability of BeWo cells to flip phosphatidylserine and fuse when treated with forskolin. These results indicate that flippases at the plasma membrane play an important role in the formation of syncytiotrophoblasts in placental development.
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Abstract
Physarum polycephalum is a unicellular slime mould that has been intensely studied owing to its ability to solve mazes, find shortest paths, generate Steiner trees, share knowledge and remember past events and the implied applications to unconventional computing. The CELL model is a cellular automaton introduced in Gunji et al. (Gunji et al. 2008 J. Theor. Biol. 253, 659-667 (doi:10.1016/j.jtbi.2008.04.017)) that models Physarum's amoeboid motion, tentacle formation, maze solving and network creation. In the present paper, we extend the CELL model by spawning multiple CELLs, allowing us to understand the interactions between multiple cells and, in particular, their mobility, merge speed and cytoplasm mixing. We conclude the paper with some notes about applications of our work to modelling the rise of present-day civilization from the early nomadic humans and the spread of trends and information around the world. Our study of the interactions of this unicellular organism should further the understanding of how P. polycephalum communicates and shares information.
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Affiliation(s)
- Sheryl Hsu
- Valley Christian High School, San Jose, CA, USA
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Haj Hammadeh H, Serrano A, Wernet V, Stomberg N, Hellmeier D, Weichert M, Brandt U, Sieg B, Kanofsky K, Hehl R, Fischer R, Fleißner A. A dialogue-like cell communication mechanism is conserved in filamentous ascomycete fungi and mediates interspecies interactions. Proc Natl Acad Sci U S A 2022; 119:e2112518119. [PMID: 35286209 DOI: 10.1073/pnas.2112518119] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
This study reveals that a dialogue-like communication mechanism, which mediates cell–cell fusion in filamentous fungi, is a conserved complex trait. It allows the communication and behavioral coordination of cells of distantly related species and mediates their mutual attraction and subsequent physical contact, although interspecies fusion does not occur. Through the activation of this signaling machinery, one species can reprogram the developmental program of the other fungus. These data promote our understanding of microbial communication, illustrate the mechanism of repurposing of existing building blocks in cellular evolution, revive the hypothesis of vegetative fusion as an avenue of horizontal gene transfer in fungi, and establish the idea of developmental reprogramming as a tool for controlling fungi. In many filamentous fungi, germinating spores cooperate by fusing into supracellular structures, which develop into the mycelial colony. In the model fungus Neurospora crassa, this social behavior is mediated by an intriguing mode of communication, in which two fusing cells take turns in signal sending and receiving. Here we show that this dialogue-like cell communication mechanism is highly conserved in distantly related fungal species and mediates interspecies interactions. In mixed populations, cells of N. crassa and the phytopathogenic gray mold Botrytis cinerea coordinate their behavior over a spatial distance and establish physical contact. Subsequent cell–cell fusion is, however, restricted to germlings of the same species, indicating that species specificity of germling fusion has evolved not on the level of the signal/receptor but at subsequent levels of the fusion process. In B. cinerea, fusion and infectious growth are mutually exclusive cellular programs. Remarkably, the presence of N. crassa can reprogram this behavior and induce fusion of the gray mold on plant surfaces, potentially weakening its pathogenic potential. In a third fungal species, the nematode-trapping fungus Arthrobotrys flagrans, the conserved signaling mechanism mediates vegetative fusion within mycelial colonies but has also been repurposed for the formation of nematode-catching traps. In summary, this study identified the cell dialogue mechanism as a conserved complex trait and revealed that even distantly related fungi possess a common molecular language, which promotes cellular contact formation across species borders.
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Tretyakova MS, Subbalakshmi AR, Menyailo ME, Jolly MK, Denisov EV. Tumor Hybrid Cells: Nature and Biological Significance. Front Cell Dev Biol 2022; 10:814714. [PMID: 35242760 PMCID: PMC8886020 DOI: 10.3389/fcell.2022.814714] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/25/2022] [Indexed: 11/13/2022] Open
Abstract
Metastasis is the leading cause of cancer death and can be realized through the phenomenon of tumor cell fusion. The fusion of tumor cells with other tumor or normal cells leads to the appearance of tumor hybrid cells (THCs) exhibiting novel properties such as increased proliferation and migration, drug resistance, decreased apoptosis rate, and avoiding immune surveillance. Experimental studies showed the association of THCs with a high frequency of cancer metastasis; however, the underlying mechanisms remain unclear. Many other questions also remain to be answered: the role of genetic alterations in tumor cell fusion, the molecular landscape of cells after fusion, the lifetime and fate of different THCs, and the specific markers of THCs, and their correlation with various cancers and clinicopathological parameters. In this review, we discuss the factors and potential mechanisms involved in the occurrence of THCs, the types of THCs, and their role in cancer drug resistance and metastasis, as well as potential therapeutic approaches for the prevention, and targeting of tumor cell fusion. In conclusion, we emphasize the current knowledge gaps in the biology of THCs that should be addressed to develop highly effective therapeutics and strategies for metastasis suppression.
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Affiliation(s)
- Maria S Tretyakova
- Laboratory of Cancer Progression Biology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Ayalur R Subbalakshmi
- Cancer Systems Biology Laboratory, Centre for BioSystems Science and Engineering, Indian Institute of Science, Bengaluru, India
| | - Maxim E Menyailo
- Laboratory of Cancer Progression Biology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Mohit Kumar Jolly
- Cancer Systems Biology Laboratory, Centre for BioSystems Science and Engineering, Indian Institute of Science, Bengaluru, India
| | - Evgeny V Denisov
- Laboratory of Cancer Progression Biology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
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Zhang H, Ma H, Yang X, Fan L, Tian S, Niu R, Yan M, Zheng M, Zhang S. Cell Fusion-Related Proteins and Signaling Pathways, and Their Roles in the Development and Progression of Cancer. Front Cell Dev Biol 2022; 9:809668. [PMID: 35178400 PMCID: PMC8846309 DOI: 10.3389/fcell.2021.809668] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/22/2021] [Indexed: 12/16/2022] Open
Abstract
Cell fusion is involved in many physiological and pathological processes, including gamete binding, and cancer development. The basic processes of cell fusion include membrane fusion, cytoplasmic mixing, and nuclear fusion. Cell fusion is regulated by different proteins and signaling pathways. Syncytin-1, syncytin-2, glial cell missing 1, galectin-1 and other proteins (annexins, myomaker, myomerger etc.) involved in cell fusion via the cyclic adenosine-dependent protein kinase A, mitogen-activated protein kinase, wingless/integrase-1, and c-Jun N-terminal kinase signaling pathways. In the progression of malignant tumors, cell fusion is essential during the organ-specific metastasis, epithelial-mesenchymal transformation, the formation of cancer stem cells (CSCs), cancer angiogenesis and cancer immunity. In addition, diploid cells can be induced to form polyploid giant cancer cells (PGCCs) via cell fusion under many kinds of stimuli, including cobalt chloride, chemotherapy, radiotherapy, and traditional Chinese medicine. PGCCs have CSC-like properties, and the daughter cells derived from PGCCs have a mesenchymal phenotype and exhibit strong migration, invasion, and proliferation abilities. Therefore, exploring the molecular mechanisms of cell fusion can enable us better understand the development of malignant tumors. In this review, the basic process of cell fusion and its significance in cancer is discussed.
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Affiliation(s)
- Hao Zhang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hong Ma
- Tianjin Union Medical Center, Nankai University, Tianjin, China
| | - Xiaohui Yang
- Nankai University School of Medicine, Nankai University, Tianjin, China
| | - Linlin Fan
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shifeng Tian
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Rui Niu
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Man Yan
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Minying Zheng
- Tianjin Union Medical Center, Nankai University, Tianjin, China
| | - Shiwu Zhang
- Tianjin Union Medical Center, Nankai University, Tianjin, China
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Zhang C, Zhong Z, Sang W, Ghorbani F, Ghalandari B, Mohamadali M, Irani S, Qian Z, Yi C, Yu B. The Dibenzyl Isoquinoline Alkaloid Berbamine Ameliorates Osteoporosis by Inhibiting Bone Resorption. Front Endocrinol (Lausanne) 2022; 13:885507. [PMID: 35663327 PMCID: PMC9159364 DOI: 10.3389/fendo.2022.885507] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 04/07/2022] [Indexed: 11/13/2022] Open
Abstract
Postmenopausal osteoporosis (PMOP) is a kind of primary osteoporosis that is characterized by decreased bone density and strength. Berbamine is a nonbasic quaternary benzylisoquinoline plant alkaloid that has been widely used in the clinic to treat leukopenia in China. We found that berbamine inhibited RANKL-induced osteoclastogenesis of bone marrow-derived macrophages (BMMs) in vitro, which mainly occurred in the middle phase and late phase. The gene and protein expression levels of osteoclast-related molecules, including CTSK, MMP-9, NFATc1, CD44 and DC-STAMP, were also downregulated by berbamine. In vivo, we treated PMOP mice with berbamine for 8 weeks and found that the extent of osteoporosis was alleviated significantly according to micro-CT scanning, hematoxylin-eosin staining, DC-STAMP immunohistochemical staining and TRAP immunohistochemical staining in the distal femurs of the mice. Our findings demonstrate that berbamine has an inhibitory effect on the osteoclastogenesis of BMMs and can prevent bone loss after ovariectomy in vivo. This study provides evidence that berbamine is a potential drug for the prevention and treatment of PMOP.
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Affiliation(s)
- Chongjing Zhang
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
- Shanghai Medical College, Fudan University, Shanghai, China
| | - Zeyuan Zhong
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
- Shanghai Medical College, Fudan University, Shanghai, China
| | - Weicong Sang
- Shanghai Medical College, Fudan University, Shanghai, China
| | - Farnaz Ghorbani
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Behafarid Ghalandari
- State Key Laboratory of Oncogenes and Related Genes, Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Marjan Mohamadali
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shiva Irani
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zhi Qian
- Institution of Orthopaedic Diseases, Zhangye People’s Hospital Affiliated to Hexi University, Zhangye, China
- *Correspondence: Baoqing Yu, ; Chengqing Yi, ; Zhi Qian,
| | - Chengqing Yi
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
- *Correspondence: Baoqing Yu, ; Chengqing Yi, ; Zhi Qian,
| | - Baoqing Yu
- Department of Orthopedics, Shanghai Pudong New Area People’s Hospital, Shanghai, China
- *Correspondence: Baoqing Yu, ; Chengqing Yi, ; Zhi Qian,
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Mi R, Ji J, Zhang M, Zhang J, Li M, Hu Y, Liu F. Establishment of the glioma polyploid giant cancer cell model by a modified PHA-DMSO-PEG fusion method following dual drug-fluorescence screening in vitro. J Neurosci Methods 2021; 368:109462. [PMID: 34968625 DOI: 10.1016/j.jneumeth.2021.109462] [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: 08/03/2021] [Revised: 12/14/2021] [Accepted: 12/23/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND In glioma, cell fusion and the number of the polyploid giant cancer cells (PGCC) were found to be augmented with tumor grades (WHO Ⅰ-Ⅳ) and closely related to poor prognosis. However, the pathological and molecular characteristics of glioma PGCCs remain unclear due to the lack of cell model in vitro and in vivo. NEW METHOD Here, we reported a novel approach to obtain the glioma PGCCs by the PHA-DMSO-PEG fusion method following dual drug-fluorescence screening in vitro. Glioma cells were labelled by lentiviruses infection and fusion hybrids were obtained by puromycin screening and fluorescence-activated cell sorting (FACS). RESULTS Glioma tumor-tumor cell fusion efficiency was significantly improved by PHA and DMSO. Glioma PGCCs were successfully obtained after puromycin screening and FACS. Cell size, DNA content and chromosome numbers of the glioma PGCCs were almost twice than that of the parental glioma cells. Moreover, glioma PGCCs showed a decreased proliferation rate but enhanced temozolomide resistance potential compared to the parental cells. COMPARISON WITH EXISTING METHODS We firstly obtained the glioma PGCCs by a modified fusion method in vitro. The fusion efficiency of the PHA-DMSO-PEG fusion method was much higher compared to PEG fusion method. Moreover, the dual drug-fluorescence screening method was more convenient and effective compared to the single one. CONCLUSIONS We successfully established the glioma PGCC model through a modified PHA-DMSO-PEG fusion method following dual drug-fluorescence screening in vitro. Glioma PGCCs showed a deceased proliferation rate but increased TMZ resistance capacity.
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Affiliation(s)
- Ruifang Mi
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, P.R. China; Department of Neurosurgery, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070, P.R. China
| | - Jiayu Ji
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, P.R. China
| | - Mengmeng Zhang
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, P.R. China; Department of Neurosurgery, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070, P.R. China
| | - Junwen Zhang
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, P.R. China; Department of Neurosurgery, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070, P.R. China
| | - Mingxin Li
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, P.R. China; Department of Neurosurgery, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070, P.R. China
| | - Yuedong Hu
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, P.R. China; Department of Neurosurgery, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070, P.R. China
| | - Fusheng Liu
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, P.R. China; Department of Neurosurgery, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070, P.R. China; Beijing Laboratory of Biomedical Materials, Beijing 100070, P.R.China.
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Kobayashi T, Namba M, Kohno M, Koyano T, Sado Y, Matsuyama M. An improved iliac lymph node method for production of monoclonal antibodies. Dev Growth Differ 2021; 64:38-47. [PMID: 34904222 DOI: 10.1111/dgd.12766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 10/01/2021] [Revised: 10/29/2021] [Accepted: 11/15/2021] [Indexed: 11/29/2022]
Abstract
Monoclonal antibodies have been applied in a wide range of biological and medical studies since the advent of cell fusion technology. Although cell fusion techniques have been improved by using myelomas and reagents, researchers still find it difficult to produce monoclonal antibodies because of the long protocols, high costs, and low efficiency of obtaining hybridomas. To solve these problems, we first developed an iliac lymph node method in 1995 using rats. In this method, an antigen emulsion is injected intramuscularly into the tail base, and then B lymphocytes are isolated from the enlarged iliac lymph nodes. This method is approximately 10 times more productive than the conventional spleen method. Here, we present further improvements to the iliac lymph node method to render it easily applicable in both mice and rats. We found that the frequency of hybridomas secreting specific antibodies was over five times higher using the electro cell fusion method than using the polyethylene glycol (PEG) fusion method. This frequency using the iliac lymph node method with electro cell fusion is at least 50 times higher than that using the traditional spleen method, thereby leading to the reduction in the number of mice or rats to be sacrificed. In addition, only a single injection for immunization is necessary for the iliac lymph node method, opposed to three for the spleen method. Therefore, this method is rapid, inexpensive, and ethical for producing monoclonal antibodies.
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Affiliation(s)
- Tomoe Kobayashi
- Division of Molecular Genetics, Shigei Medical Research Institute, Okayama, Japan
| | - Masumi Namba
- Division of Molecular Genetics, Shigei Medical Research Institute, Okayama, Japan
| | - Mayumi Kohno
- Division of Molecular Genetics, Shigei Medical Research Institute, Okayama, Japan
| | - Takayuki Koyano
- Division of Molecular Genetics, Shigei Medical Research Institute, Okayama, Japan
| | - Yoshikazu Sado
- Division of Immunology, Shigei Medical Research Institute, Okayama, Japan
| | - Makoto Matsuyama
- Division of Molecular Genetics, Shigei Medical Research Institute, Okayama, Japan
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Lazebnik Y. Cell fusion as a link between the SARS-CoV-2 spike protein, COVID-19 complications, and vaccine side effects. Oncotarget 2021; 12:2476-2488. [PMID: 34917266 PMCID: PMC8664391 DOI: 10.18632/oncotarget.28088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 09/24/2021] [Indexed: 12/23/2022] Open
Abstract
A distinctive feature of the SARS-CoV-2 spike protein is its ability to efficiently fuse cells, thus producing syncytia found in COVID-19 patients. This commentary proposes how this ability enables spike to cause COVID-19 complications as well as side effects of COVID-19 vaccines, and suggests how these effects can be prevented.
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Secker C, Kostova S, Niederlechner H, Beetz S, Wendland I, Liebich MJ, Polzer O, Groh M, Schnoegl S, Trepte P, Wanker EE. CellFIE: CRISPR- and Cell Fusion-based Two-hybrid Interaction Mapping of Endogenous Proteins. J Mol Biol 2021; 433:167305. [PMID: 34655654 DOI: 10.1016/j.jmb.2021.167305] [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: 06/16/2021] [Revised: 10/01/2021] [Accepted: 10/07/2021] [Indexed: 10/20/2022]
Abstract
Numerous genetic methods facilitate the detection of binary protein-protein interactions (PPIs) by exogenous overexpression, which can lead to false results. Here, we describe CellFIE, a CRISPR- and cell fusion-based PPI detection method, which enables the mapping of interactions between endogenously tagged two-hybrid proteins. We demonstrate the specificity and reproducibility of CellFIE in a matrix mapping approach, validating the interactions of VCP with ASPL and UBXD1, and the self-interaction of TDP-43 under endogenous conditions. Furthermore, we show that CellFIE can be used to quantify changes of endogenous PPIs upon stress induction or drug treatment. For the first time, CellFIE facilitates systematic mapping of interactions between endogenously tagged proteins and represents a novel tool to characterize PPIs in live cells under dynamic conditions.
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Affiliation(s)
- Christopher Secker
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany; Department of Neurology, Charité Universitätsmedizin Berlin, Berlin, Germany. https://twitter.com/Chris_Secker
| | - Simona Kostova
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Hannah Niederlechner
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany; Department of Neurology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Stephanie Beetz
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Ina Wendland
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Mara J Liebich
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Oliver Polzer
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Mirjam Groh
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany; Department of Neurology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Sigrid Schnoegl
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Philipp Trepte
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany; Brain Development and Disease, Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna, Austria.
| | - Erich E Wanker
- Neuroproteomics, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany.
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Li Z, Zheng M, Zhang H, Yang X, Fan L, Fu F, Fu J, Niu R, Yan M, Zhang S. Arsenic Trioxide Promotes Tumor Progression by Inducing the Formation of PGCCs and Embryonic Hemoglobin in Colon Cancer Cells. Front Oncol 2021; 11:720814. [PMID: 34676163 PMCID: PMC8523995 DOI: 10.3389/fonc.2021.720814] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/17/2021] [Indexed: 12/24/2022] Open
Abstract
Arsenic trioxide (ATO) has been used to treat acute promyelocytic leukemia. However, it is not effective in treating solid tumors such as colorectal cancer. We have previously reported that polyploid giant cancer cells (PGCCs) exhibiting the characteristics of cancer stem cells can be generated by various inducers. In this study, ATO was used to induce the formation of PGCCs in LoVo and Hct116 colon cancer cell lines. The migration, invasion, and proliferation abilities of colon cancer cells with and without ATO treatment were assessed by wound-healing, transwell, and plate colony formation assays. The expression of epithelial to mesenchymal transition-related proteins and erythroid differentiation-related proteins in colon cancer cells was further evaluated by western blot and immunocytochemical assays. LoVo and Hct116 cells were transfected with a eukaryotic expression vector for green fluorescent protein (GFP), red fluorescent protein (RFP), H2B-GFP, and H2B-mCherry to study PGCCs formation via cell fusion. WB and ICC assays were performed to assess the expression of cell fusion-related proteins. MG132, small interfering RNA-glial cell missing 1 (GCM1), and chromatin immunoprecipitation-polymerase chain reaction assays were performed to study the role of GCM1/syncytin-1-mediated cell fusion. Clinically, the significance of cell fusion-related proteins and erythroid differentiation-related proteins expression in human colorectal cancer tissues was evaluated. Results of our study showed that ATO induced the formation of PGCCs, and the daughter cells derived from PGCCs gained a mesenchymal phenotype and exhibited strong migration, invasion, and proliferation abilities. PGCCs also produced embryonic hemoglobin-delta and -zeta with strong oxygen-binding ability and erythroid differentiation-related proteins after ATO treatment. In addition, cell fusion was observed during the formation of PGCCs, indicated by the presence of yellow fluorescence via the GCM1/syncytin-1 signaling pathway. Clinically, the expression of cell fusion-related and erythroid differentiation-related proteins gradually increased with the progression of human colorectal cancer tissues. In conclusion, ATO can promote tumor progression by inducing the formation of PGCCs via GCM1/syncytin-1-mediated cell fusion. PGCCs can produce daughter cells with high invasion and migration abilities and embryonic hemoglobin with strong oxygen binding ability, promoting survival of tumor cells in a hypoxic microenvironment.
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Affiliation(s)
- Zugui Li
- Department of Pathology, Tianjin Union Medical Center, Tianjin, China
| | - Minying Zheng
- Department of Pathology, Tianjin Union Medical Center, Tianjin, China
| | - Hao Zhang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaohui Yang
- Nankai University School of Medicine, Nankai University, Tianjin, China
| | - Linlin Fan
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fangmei Fu
- Department of Pathology, Tianjin Union Medical Center, Tianjin, China.,Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Junjie Fu
- Department of Pathology, Tianjin Union Medical Center, Tianjin, China.,Graduate School, Tianjin Medical University, Tianjin, China
| | - Rui Niu
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Man Yan
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shiwu Zhang
- Department of Pathology, Tianjin Union Medical Center, Tianjin, China
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45
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Barreto SG, Gardi N, Dutt S. Birth of a solid organ cancer-the cell fusion hypothesis presented with pancreatic cancer as a model: a narrative review. Chin Clin Oncol 2021; 10:45. [PMID: 34670374 DOI: 10.21037/cco-21-69] [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: 06/06/2021] [Accepted: 09/17/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE This hypothesis-driven narrative review aims to explore the evidence for the fundamental process of cell fusion between normal, but different, cell types in the genesis of a cancer cell. BACKGROUND Finding out how a cancer is born must remain a top priority as this will allow us the opportunity to understand the disease before it acquires its largely 'untameable' heterogeneous form. The search for the cell of origin in solid organ cancers has remained elusive despite concerted attempts over many decades. There is always more than one cell type implicated in the causation of solid organ cancers. METHODS Based on preliminary data from our laboratory and a review of the evidence in literature, we present a novel hypothesis to explain the origin of solid organ cancers using pancreatic cancer as an example. CONCLUSIONS We hypothesize that, "Cancer is born from fusion and hybridization of normal cells from two different lineages located within the vicinity of each other that perceive a signal reminiscent of a threat to their extinction that leads to epigenetically-mediated transformations permitting them to achieve cell fusion." Addressing this hypothesis to prove, or disprove it, presents an opportunity to unravel the basis of carcinogenesis and potential re-think our strategies for treatment in terms of choice of chemotherapeutic agents, dosage of chemo- and radiation-therapy, and timing of interventions (surgery, chemotherapy and radiation therapy).
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Affiliation(s)
- Savio G Barreto
- Division of Surgery and Perioperative Medicine, Flinders Medical Centre, Bedford Park, Adelaide, South Australia, Australia; College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, South Australia, Australia
| | - Nilesh Gardi
- Department of Medical Oncology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Shilpee Dutt
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India; Shilpee Dutt Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India
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46
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Pendharkar G, Lu YT, Chang CM, Lu MP, Lu CH, Chen CC, Liu CH. A Microfluidic Flip-Chip Combining Hydrodynamic Trapping and Gravitational Sedimentation for Cell Pairing and Fusion. Cells 2021; 10:cells10112855. [PMID: 34831078 PMCID: PMC8616069 DOI: 10.3390/cells10112855] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 11/16/2022] Open
Abstract
Cancer cell–immune cell hybrids and cancer immunotherapy have attracted much attention in recent years. The design of efficient cell pairing and fusion chips for hybridoma generation has been, subsequently, a subject of great interest. Here, we report a three-layered integrated Microfluidic Flip-Chip (MFC) consisting of a thin through-hole membrane sandwiched between a mirrored array of microfluidic channels and saw-tooth shaped titanium electrodes on the glass. We discuss the design and operation of MFC and show its applicability for cell fusion. The proposed device combines passive hydrodynamic phenomenon and gravitational sedimentation, which allows the transportation and trapping of homotypic and heterotypic cells in large numbers with pairing efficiencies of 75~78% and fusion efficiencies of 73%. Additionally, we also report properties of fused cells from cell biology perspectives, including combined fluorescence-labeled intracellular materials from THP1 and A549, mixed cell morphology, and cell viability. The MFC can be tuned for pairing and fusion of cells with a similar protocol for different cell types. The MFC can be easily disconnected from the test setup for further analysis.
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Affiliation(s)
- Gaurav Pendharkar
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30044, Taiwan; (G.P.); (C.-H.L.); (C.-C.C.)
| | - Yen-Ta Lu
- Chest Department, MacKay Memorial Hospital, New Taipei City 10449, Taiwan;
- Department of Medical Research, MacKay Memorial Hospital, New Taipei City 10449, Taiwan; (C.-M.C.); (M.-P.L.)
| | - Chia-Ming Chang
- Department of Medical Research, MacKay Memorial Hospital, New Taipei City 10449, Taiwan; (C.-M.C.); (M.-P.L.)
| | - Meng-Ping Lu
- Department of Medical Research, MacKay Memorial Hospital, New Taipei City 10449, Taiwan; (C.-M.C.); (M.-P.L.)
| | - Chung-Huan Lu
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30044, Taiwan; (G.P.); (C.-H.L.); (C.-C.C.)
| | - Chih-Chen Chen
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30044, Taiwan; (G.P.); (C.-H.L.); (C.-C.C.)
- Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu 30044, Taiwan
| | - Cheng-Hsien Liu
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30044, Taiwan; (G.P.); (C.-H.L.); (C.-C.C.)
- Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu 30044, Taiwan
- Correspondence:
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47
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Dörnen J, Dittmar T. The Role of MSCs and Cell Fusion in Tissue Regeneration. Int J Mol Sci 2021; 22:10980. [PMID: 34681639 DOI: 10.3390/ijms222010980] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/04/2021] [Accepted: 10/05/2021] [Indexed: 02/06/2023] Open
Abstract
Regenerative medicine is concerned with the investigation of therapeutic agents that can be used to promote the process of regeneration after injury or in different diseases. Mesenchymal stem/stromal cells (MSCs) and their secretome—including extracellular vesicles (EVs) are of great interest, due to their role in tissue regeneration, immunomodulatory capacity and low immunogenicity. So far, clinical studies are not very conclusive as they show conflicting efficacies regarding the use of MSCs. An additional process possibly involved in regeneration might be cell fusion. This process occurs in both a physiological and a pathophysiological context and can be affected by immune response due to inflammation. In this review the role of MSCs and cell fusion in tissue regeneration is discussed.
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48
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Hass R, von der Ohe J, Dittmar T. Cancer Cell Fusion and Post-Hybrid Selection Process (PHSP). Cancers (Basel) 2021; 13:cancers13184636. [PMID: 34572863 PMCID: PMC8470238 DOI: 10.3390/cancers13184636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 12/17/2022] Open
Abstract
Fusion of cancer cells either with other cancer cells (homotypic fusion) in local vicinity of the tumor tissue or with other cell types (e.g., macrophages, cancer-associated fibroblasts (CAFs), mesenchymal stromal-/stem-like cells (MSC)) (heterotypic fusion) represents a rare event. Accordingly, the clinical relevance of cancer-cell fusion events appears questionable. However, enhanced tumor growth and/or development of certain metastases can originate from cancer-cell fusion. Formation of hybrid cells after cancer-cell fusion requires a post-hybrid selection process (PHSP) to cope with genomic instability of the parental nuclei and reorganize survival and metabolic functionality. The present review dissects mechanisms that contribute to a PHSP and resulting functional alterations of the cancer hybrids. Based upon new properties of cancer hybrid cells, the arising clinical consequences of the subsequent tumor heterogeneity after cancer-cell fusion represent a major therapeutic challenge. However, cellular partners during cancer-cell fusion such as MSC within the tumor microenvironment or MSC-derived exosomes may provide a suitable vehicle to specifically address and deliver anti-tumor cargo to cancer cells.
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Affiliation(s)
- Ralf Hass
- Biochemistry and Tumor Biology Laboratory, Department of Obstetrics and Gynecology, Hannover Medical School, 30625 Hannover, Germany;
- Correspondence: (R.H.); (T.D.); Tel.: +49-511-5326070 (R.H.); +49-2302-926165 (T.D.)
| | - Juliane von der Ohe
- Biochemistry and Tumor Biology Laboratory, Department of Obstetrics and Gynecology, Hannover Medical School, 30625 Hannover, Germany;
| | - Thomas Dittmar
- Institute of Immunology, Center of Biomedical Education and Research (ZABF), Witten/Herdecke University, 58448 Witten, Germany
- Correspondence: (R.H.); (T.D.); Tel.: +49-511-5326070 (R.H.); +49-2302-926165 (T.D.)
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49
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Jambunathan N, Clark CM, Musarrat F, Chouljenko VN, Rudd J, Kousoulas KG. Two Sides to Every Story: Herpes Simplex Type-1 Viral Glycoproteins gB, gD, gH/gL, gK, and Cellular Receptors Function as Key Players in Membrane Fusion. Viruses 2021; 13:1849. [PMID: 34578430 DOI: 10.3390/v13091849] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/02/2021] [Accepted: 09/04/2021] [Indexed: 12/21/2022] Open
Abstract
Herpes simplex virus type-1 (HSV-1) and type-2 (HSV-2) are prototypical alphaherpesviruses that are characterized by their unique properties to infect trigeminal and dorsal root ganglionic neurons, respectively, and establish life-long latent infections. These viruses initially infect mucosal epithelial tissues and subsequently spread to neurons. They are associated with a significant disease spectrum, including orofacial and ocular infections for HSV-1 and genital and neonatal infections for HSV-2. Viral glycoproteins within the virion envelope bind to specific cellular receptors to mediate virus entry into cells. This is achieved by the fusion of the viral envelope with the plasma membrane. Similarly, viral glycoproteins expressed on cell surfaces mediate cell-to-cell fusion and facilitate virus spread. An interactive complex of viral glycoproteins gB, gD/gH/gL, and gK and other proteins mediate these membrane fusion phenomena with glycoprotein B (gB), the principal membrane fusogen. The requirement for the virion to enter neuronal axons suggests that the heterodimeric protein complex of gK and membrane protein UL20, found only in alphaherpesviruses, constitute a critical determinant for neuronal entry. This hypothesis was substantiated by the observation that a small deletion in the amino terminus of gK prevents entry into neuronal axons while allowing entry into other cells via endocytosis. Cellular receptors and receptor-mediated signaling synergize with the viral membrane fusion machinery to facilitate virus entry and intercellular spread. Unraveling the underlying interactions among viral glycoproteins, envelope proteins, and cellular receptors will provide new innovative approaches for antiviral therapy against herpesviruses and other neurotropic viruses.
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50
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Hammers DW, Hart CC, Matheny MK, Heimsath EG, Lee YI, Hammer JA, Cheney RE, Sweeney HL. Filopodia powered by class x myosin promote fusion of mammalian myoblasts. eLife 2021; 10:e72419. [PMID: 34519272 PMCID: PMC8500716 DOI: 10.7554/elife.72419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 09/13/2021] [Indexed: 12/30/2022] Open
Abstract
Skeletal muscle fibers are multinucleated cellular giants formed by the fusion of mononuclear myoblasts. Several molecules involved in myoblast fusion have been discovered, and finger-like projections coincident with myoblast fusion have also been implicated in the fusion process. The role of these cellular projections in muscle cell fusion was investigated herein. We demonstrate that these projections are filopodia generated by class X myosin (Myo10), an unconventional myosin motor protein specialized for filopodia. We further show that Myo10 is highly expressed by differentiating myoblasts, and Myo10 ablation inhibits both filopodia formation and myoblast fusion in vitro. In vivo, Myo10 labels regenerating muscle fibers associated with Duchenne muscular dystrophy and acute muscle injury. In mice, conditional loss of Myo10 from muscle-resident stem cells, known as satellite cells, severely impairs postnatal muscle regeneration. Furthermore, the muscle fusion proteins Myomaker and Myomixer are detected in myoblast filopodia. These data demonstrate that Myo10-driven filopodia facilitate multinucleated mammalian muscle formation.
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MESH Headings
- Animals
- Cell Differentiation
- Cell Fusion
- Cell Line
- Cell Proliferation
- Disease Models, Animal
- Humans
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Mice, Inbred C57BL
- Mice, Inbred mdx
- Mice, Knockout
- Muscle Development
- Muscle Fibers, Skeletal/metabolism
- Muscle Fibers, Skeletal/pathology
- Muscle Proteins/genetics
- Muscle Proteins/metabolism
- Muscular Dystrophy, Duchenne/genetics
- Muscular Dystrophy, Duchenne/metabolism
- Muscular Dystrophy, Duchenne/pathology
- Myoblasts, Skeletal/metabolism
- Myoblasts, Skeletal/pathology
- Myosins/genetics
- Myosins/metabolism
- Pseudopodia/genetics
- Pseudopodia/metabolism
- Regeneration
- Satellite Cells, Skeletal Muscle/metabolism
- Satellite Cells, Skeletal Muscle/pathology
- Time Factors
- Mice
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Affiliation(s)
- David W Hammers
- Department of Pharmacology & Therapeutics, University of Florida College of MedicineGainesvilleUnited States
- University of Florida Myology InstituteGainesvilleUnited States
| | - Cora C Hart
- Department of Pharmacology & Therapeutics, University of Florida College of MedicineGainesvilleUnited States
- University of Florida Myology InstituteGainesvilleUnited States
| | - Michael K Matheny
- Department of Pharmacology & Therapeutics, University of Florida College of MedicineGainesvilleUnited States
- University of Florida Myology InstituteGainesvilleUnited States
| | - Ernest G Heimsath
- Department of Cell Biology & Physiology and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill School of MedicineChapel HillUnited States
| | - Young il Lee
- Department of Pharmacology & Therapeutics, University of Florida College of MedicineGainesvilleUnited States
- University of Florida Myology InstituteGainesvilleUnited States
| | - John A Hammer
- Cell Biology and Physiology Center, National Heart, Lung and Blood InstituteBethesdaUnited States
| | - Richard E Cheney
- Department of Cell Biology & Physiology and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill School of MedicineChapel HillUnited States
| | - H Lee Sweeney
- Department of Pharmacology & Therapeutics, University of Florida College of MedicineGainesvilleUnited States
- University of Florida Myology InstituteGainesvilleUnited States
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