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Kochanowsky JA, Mira PM, Elikaee S, Muratore K, Rai AK, Riestra AM, Johnson PJ. Trichomonas vaginalis extracellular vesicles up-regulate and directly transfer adherence factors promoting host cell colonization. Proc Natl Acad Sci U S A 2024; 121:e2401159121. [PMID: 38865261 PMCID: PMC11194581 DOI: 10.1073/pnas.2401159121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/16/2024] [Indexed: 06/14/2024] Open
Abstract
Trichomonas vaginalis, a common sexually transmitted parasite that colonizes the human urogenital tract, secretes extracellular vesicles (TvEVs) that are taken up by human cells and are speculated to be taken up by parasites as well. While the crosstalk between TvEVs and human cells has led to insight into host:parasite interactions, roles for TvEVs in infection have largely been one-sided, with little known about the effect of TvEV uptake by T. vaginalis. Approximately 11% of infections are found to be coinfections of multiple T. vaginalis strains. Clinical isolates often differ in their adherence to and cytolysis of host cells, underscoring the importance of understanding the effects of TvEV uptake within the parasite population. To address this question, our lab tested the ability of a less adherent strain of T. vaginalis, G3, to take up fluorescently labeled TvEVs derived from both itself (G3-EVs) and TvEVs from a more adherent strain of the parasite (B7RC2-EVs). Here, we showed that TvEVs generated from the more adherent strain are internalized more efficiently compared to the less adherent strain. Additionally, preincubation of G3 parasites with B7RC2-EVs increases parasite aggregation and adherence to host cells. Transcriptomics revealed that TvEVs up-regulate expression of predicted parasite membrane proteins and identified an adherence factor, heteropolysaccharide binding protein (HPB2). Finally, using comparative proteomics and superresolution microscopy, we demonstrated direct transfer of an adherence factor, cadherin-like protein, from TvEVs to the recipient parasite's surface. This work identifies TvEVs as a mediator of parasite:parasite communication that may impact pathogenesis during mixed infections.
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Affiliation(s)
- Joshua A. Kochanowsky
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Portia M. Mira
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Samira Elikaee
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Katherine Muratore
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Anand Kumar Rai
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Angelica M. Riestra
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
- Department of Biology, San Diego State University, San Diego, CA92182
| | - Patricia J. Johnson
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
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Wang YF, Shen ZF, Xiang FY, Wang H, Zhang P, Zhang Q. The direct transfer approach for transcellular drug delivery. Drug Deliv 2023; 30:2288799. [PMID: 38037327 PMCID: PMC10987047 DOI: 10.1080/10717544.2023.2288799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/12/2023] [Indexed: 12/02/2023] Open
Abstract
A promising paradigm for drug administration that has garnered increasing attention in recent years is the direct transfer (DT) of nanoparticles for transcellular drug delivery. DT requires direct cell-cell contact and facilitates unidirectional and bidirectional matter exchange between neighboring cells. Consequently, DT enables fast and deep penetration of drugs into the targeted tissues. This comprehensive review discusses the direct transfer concept, which can be delineated into the following three distinct modalities: membrane contact-direct transfer, gap junction-mediated direct transfer (GJ-DT), and tunneling nanotubes-mediated direct transfer (TNTs-DT). Further, the intercellular structures for each modality of direct transfer and their respective merits and demerits are summarized. The review also discusses the recent progress on the drugs or drug delivery systems that could activate DT.
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Affiliation(s)
- Yi-Fan Wang
- Graduate Department, Bengbu Medical College, Bengbu, Anhui, China
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Ze-Fan Shen
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Fang-yue Xiang
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Heng Wang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Pu Zhang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Qi Zhang
- Graduate Department, Bengbu Medical College, Bengbu, Anhui, China
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
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Turos-Korgul L, Kolba MD, Chroscicki P, Zieminska A, Piwocka K. Tunneling Nanotubes Facilitate Intercellular Protein Transfer and Cell Networks Function. Front Cell Dev Biol 2022; 10:915117. [PMID: 35903550 PMCID: PMC9314668 DOI: 10.3389/fcell.2022.915117] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022] Open
Abstract
The past decade witnessed a huge interest in the communication machinery called tunneling nanotubes (TNTs) which is a novel, contact-dependent type of intercellular protein transfer (IPT). As the IPT phenomenon plays a particular role in the cross-talk between cells, including cancer cells as well as in the immune and nervous systems, it therefore participates in remodeling of the cellular networks. The following review focuses on the placing the role of tunneling nanotube-mediated protein transfer between distant cells. Firstly, we describe different screening methods used to study IPT including tunneling nanotubes. Further, we present various examples of TNT-mediated protein transfer in the immune system, cancer microenvironment and in the nervous system, with particular attention to the methods used to verify the transfer of individual proteins.
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Geles KG, Gao Y, Giannakou A, Sridharan L, Yamin TT, Zhang J, Karim R, Bard J, Piche-Nicholas N, Charati M, Maderna A, Lucas J, Golas J, Guffroy M, Pirie-Shepherd S, Roy M, Qian J, Franks T, Zhong W, O'Donnell CJ, Tchistiakova L, Gerber HP, Sapra P. NOTCH3-targeted antibody drug conjugates regress tumors by inducing apoptosis in receptor cells and through transendocytosis into ligand cells. CELL REPORTS MEDICINE 2021; 2:100279. [PMID: 34095881 PMCID: PMC8149476 DOI: 10.1016/j.xcrm.2021.100279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 01/20/2021] [Accepted: 04/22/2021] [Indexed: 11/28/2022]
Abstract
Aberrant NOTCH3 signaling and overexpression is oncogenic, associated with cancer stem cells and drug resistance, yet therapeutic targeting remains elusive. Here, we develop NOTCH3-targeted antibody drug conjugates (NOTCH3-ADCs) by bioconjugation of an auristatin microtubule inhibitor through a protease cleavable linker to two antibodies with differential abilities to inhibit signaling. The signaling inhibitory antibody rapidly induces ligand-independent receptor clustering and internalization through both caveolin and clathrin-mediated pathways. The non-inhibitory antibody also efficiently endocytoses via clathrin without inducing receptor clustering but with slower lysosomal co-localization kinetics. In addition, DLL4 ligand binding to the NOTCH3 receptor mediates transendocytosis of NOTCH3-ADCs into ligand-expressing cells. NOTCH3-ADCs internalize into receptor and ligand cells independent of signaling and induce cell death in both cell types representing an atypical mechanism of ADC cytotoxicity. Treatment of xenografts with NOTCH3-ADCs leads to sustained tumor regressions, outperforms standard-of-care chemotherapy, and allows targeting of tumors that overexpress NOTCH3 independent of signaling inhibition. NOTCH3 receptor is overexpressed in breast, lung, and ovarian tumors Newly generated NOTCH3-targeted antibody drug conjugates are efficacious and safe NOTCH3 antibodies internalize through different routes depending on signaling status NOTCH3 antibody intercellular trafficking occurs by transendocytosis into ligand cells
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Affiliation(s)
- Kenneth G Geles
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | - Yijie Gao
- BioMedicine Design, Cambridge, MA, USA
| | - Andreas Giannakou
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | - Latha Sridharan
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | - Ting-Ting Yamin
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | | | | | - Joel Bard
- BioMedicine Design, Cambridge, MA, USA
| | | | - Manoj Charati
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | | | - Judy Lucas
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | - Jonathon Golas
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | - Magali Guffroy
- Drug Safety Research and Development, Pearl River, NY, USA
| | | | - Marc Roy
- Drug Safety Research and Development, Groton, CT, USA
| | - Jessie Qian
- Drug Safety Research and Development, Groton, CT, USA
| | - Tania Franks
- Drug Safety Research and Development, Groton, CT, USA
| | - Wenyan Zhong
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | | | | | - Hans-Peter Gerber
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
| | - Puja Sapra
- Pfizer Worldwide Research and Development, Oncology Research and Development, Pearl River, NY, USA
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Hypoxia-Induced Alpha-Globin Expression in Syncytiotrophoblasts Mimics the Pattern Observed in Preeclamptic Placentas. Int J Mol Sci 2021; 22:ijms22073357. [PMID: 33806017 PMCID: PMC8036899 DOI: 10.3390/ijms22073357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 12/16/2022] Open
Abstract
Preeclampsia (PE) is a pregnancy disorder associated with placental dysfunction and elevated fetal hemoglobin (HbF). Early in pregnancy the placenta harbors hematopoietic stem and progenitor cells (HSPCs) and is an extramedullary source of erythropoiesis. However, globin expression is not unique to erythroid cells and can be triggered by hypoxia. To investigate the role of the placenta in increasing globin levels previously reported in PE, flow cytometry, histological and immunostaining and in situ analyses were used on placenta samples and ex vivo explant cultures. Our results indicated that in PE pregnancies, placental HSPC homing and erythropoiesis were not affected. Non-erythroid alpha-globin mRNA and protein, but not gamma-globin, were detected in syncytiotrophoblasts and stroma of PE placenta samples. Similarly, alpha-globin protein and mRNA were upregulated in normal placenta explants cultured in hypoxia. The upregulation was independent of HIF1 and NRF2, the two main candidates of globin transcription in non-erythroid cells. Our study is the first to demonstrate alpha-globin mRNA expression in syncytiotrophoblasts in PE, induced by hypoxia. However, gamma-globin was only expressed in erythrocytes. We conclude that alpha-globin, but not HbF, is expressed in placental syncytiotrophoblasts in PE and may contribute to the pathology of the disease.
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Dolgova EV, Petrova DD, Proskurina AS, Ritter GS, Kisaretova PE, Potter EA, Efremov YR, Bayborodin SI, Karamysheva TV, Romanenko MV, Netesov SV, Taranov OS, Ostanin AA, Chernykh ER, Bogachev SS. Identification of the xenograft and its ascendant sphere-forming cell line as belonging to EBV-induced lymphoma, and characterization of the status of sphere-forming cells. Cancer Cell Int 2019; 19:120. [PMID: 31080361 PMCID: PMC6503443 DOI: 10.1186/s12935-019-0842-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 04/27/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND We have characterized the human cell line arised from the Epstein-Barr virus (EBV) positive multiple myeloma aspirate subjected to the long-term cultivation. This cell line has acquired the ability to form free-floating spheres and to produce a xenograft upon transplantation into NOD/SCID mice. METHODS Cells from both in vitro culture and developed xenografts were investigated with a number of analytical approaches, including pathomorphological analysis, FISH analysis, and analysis of the surface antigens and of the VDJ locus rearrangement. RESULTS The obtained results, as well as the confirmed presence of EBV, testify that both biological systems are derived from B-cells, which, in turn, is a progeny of the EBV-transformed B-cellular clone that supplanted the primordial multiple myeloma cells. Next we assessed whether cells that (i) were constantly present in vitro in the investigated cell line, (ii) were among the sphere-forming cells, and (iii) were capable of internalizing a fluorescent TAMRA-labeled DNA probe (TAMRA+ cells) belonged to one of the three types of undifferentiated bone marrow cells of a multiple myeloma patient: CD34+ hematopoietic stem cells, CD90+ mesenchymal stem cells, and clonotypic multiple myeloma cell. CONCLUSION TAMRA+ cells were shown to constitute the fourth independent subpopulation of undifferentiated bone marrow cells of the multiple myeloma patient. We have demonstrated the formation of ectopic contacts between TAMRA+ cells and cells of other types in culture, in particular with CD90+ mesenchymal stem cells, followed by the transfer of some TAMRA+ cell material into the contacted cell.
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Affiliation(s)
- Evgeniya V. Dolgova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
| | | | - Anastasia S. Proskurina
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
| | - Genrikh S. Ritter
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Polina E. Kisaretova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Ekaterina A. Potter
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
| | - Yaroslav R. Efremov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Sergey I. Bayborodin
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
| | - Tatiana V. Karamysheva
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
| | | | | | - Oleg S. Taranov
- State Research Center of Virology and Biotechnology “Vector”, Koltsovo, Novosibirsk, Russia
| | | | - Elena R. Chernykh
- Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Sergey S. Bogachev
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk, 630090 Russia
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7
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Sotnikov OS. Reticular Theory of Camillo Golgi and Restructuring Electrical Synapses in Syncytial Perforations. BIOL BULL+ 2019. [DOI: 10.1134/s1062359019020146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Thayanithy V, O'Hare P, Wong P, Zhao X, Steer CJ, Subramanian S, Lou E. A transwell assay that excludes exosomes for assessment of tunneling nanotube-mediated intercellular communication. Cell Commun Signal 2017; 15:46. [PMID: 29132390 PMCID: PMC5683209 DOI: 10.1186/s12964-017-0201-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 10/30/2017] [Indexed: 12/25/2022] Open
Abstract
Background Tunneling nanotubes (TNTs) are naturally-occurring filamentous actin-based membranous extensions that form across a wide spectrum of mammalian cell types to facilitate long-range intercellular communication. Valid assays are needed to accurately assess the downstream effects of TNT-mediated transfer of cellular signals in vitro. We recently reported a modified transwell assay system designed to test the effects of intercellular transfer of a therapeutic oncolytic virus, and viral-activated drugs, between cells via TNTs. The objective of the current study was to demonstrate validation of this in vitro approach as a new method for effectively excluding diffusible forms of long- and close-range intercellular transfer of intracytoplasmic cargo, including exosomes/microvesicles and gap junctions in order to isolate TNT-selective cell communication. Methods We designed several steps to effectively reduce or eliminate diffusion and long-range transfer via these extracellular vesicles, and used Nanoparticle Tracking Analysis to quantify exosomes following implementation of these steps. Results The experimental approach outlined here effectively reduced exosome trafficking by >95%; further use of heparin to block exosome uptake by putative recipient cells further impeded transfer of these extracellular vesicles. Conclusions This validated assay incorporates several steps that can be taken to quantifiably control for extracellular vesicles in order to perform studies focused on TNT-selective communication. Electronic supplementary material The online version of this article (10.1186/s12964-017-0201-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Venugopal Thayanithy
- Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Mayo Mail Code 480, 420 Delaware Street SE, Minneapolis, MN, 55455, USA.,Present Address: Molecular Diagnostics Laboratory, University of Minnesota Medical Center, Fairview, 420 Delaware St SE, MMC 198, Minneapolis, MN, 55455, USA
| | - Patrick O'Hare
- Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Mayo Mail Code 480, 420 Delaware Street SE, Minneapolis, MN, 55455, USA
| | - Phillip Wong
- Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Mayo Mail Code 480, 420 Delaware Street SE, Minneapolis, MN, 55455, USA
| | - Xianda Zhao
- Department of Surgery, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Clifford J Steer
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, Minneapolis, MN, 55455, USA.,Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN, 55455, USA
| | | | - Emil Lou
- Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Mayo Mail Code 480, 420 Delaware Street SE, Minneapolis, MN, 55455, USA. .,Graduate Faculty, Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, 55455, USA.
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Poulcharidis D, Belfor K, Kros A, van Kasteren SI. A flow cytometry assay to quantify intercellular exchange of membrane components. Chem Sci 2017; 8:5585-5590. [PMID: 28970937 PMCID: PMC5618768 DOI: 10.1039/c7sc00260b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 05/20/2017] [Indexed: 12/12/2022] Open
Abstract
Membrane-compound exchange is vital for cell-to-cell communication, yet quantification of this process is difficult. Here we present a method using flow cytometry in combination with bioorthogonal and fluorescent labelling techniques to quantify the amount of exchange of cholesterol and sialylated compounds between cells. We demonstrate that direct cell-cell contact is the likely mechanism of sterol-exchange and show that by manipulating the contact time between cells using complementary coiled-coil peptides results in an enhanced exchange rate of membrane components between cells.
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Affiliation(s)
- Dimitrios Poulcharidis
- Division of Bio-organic Synthesis , Leiden Institute of Chemistry , Gorlaeus Laboratories , Leiden University , Leiden , The Netherlands .
- Division of Supramolecular and Biomaterials Chemistry , Leiden Institute of Chemistry , Leiden University , Einsteinweg 55 , 2333 CC Leiden , The Netherlands .
| | - Kimberley Belfor
- Division of Bio-organic Synthesis , Leiden Institute of Chemistry , Gorlaeus Laboratories , Leiden University , Leiden , The Netherlands .
| | - Alexander Kros
- Division of Supramolecular and Biomaterials Chemistry , Leiden Institute of Chemistry , Leiden University , Einsteinweg 55 , 2333 CC Leiden , The Netherlands .
| | - Sander I van Kasteren
- Division of Bio-organic Synthesis , Leiden Institute of Chemistry , Gorlaeus Laboratories , Leiden University , Leiden , The Netherlands .
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Schmuck EG, Koch JM, Centanni JM, Hacker TA, Braun RK, Eldridge M, Hei DJ, Hematti P, Raval AN. Biodistribution and Clearance of Human Mesenchymal Stem Cells by Quantitative Three-Dimensional Cryo-Imaging After Intravenous Infusion in a Rat Lung Injury Model. Stem Cells Transl Med 2016; 5:1668-1675. [PMID: 27460855 PMCID: PMC5189648 DOI: 10.5966/sctm.2015-0379] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 05/13/2016] [Indexed: 12/30/2022] Open
Abstract
To study three-dimensional (3D) cryo-imaging to measure cell biodistribution and clearance after intravenous infusion, the authors established a lung injury model in rats. Human mesenchymal stem cells (hMSCs) labeled with QTracker were infused via jugular vein. Organs were cryopreserved, followed by 3D cryo-imaging. At 60 minutes, 82 ± 9.7% of cells were detected, and at day 2, 0.06% of cells were detected. hMSCs were retained primarily in the liver, with fewer detected in lungs and spleen. Cell tracking is a critical component of the safety and efficacy evaluation of therapeutic cell products. To date, cell-tracking modalities have been hampered by poor resolution, low sensitivity, and inability to track cells beyond the shortterm. Three-dimensional (3D) cryo-imaging coregisters fluorescent and bright-field microcopy images and allows for single-cell quantification within a 3D organ volume. We hypothesized that 3D cryo-imaging could be used to measure cell biodistribution and clearance after intravenous infusion in a rat lung injury model compared with normal rats. A bleomycin lung injury model was established in Sprague-Dawley rats (n = 12). Human mesenchymal stem cells (hMSCs) labeled with QTracker655 were infused via jugular vein. After 2, 4, or 8 days, a second dose of hMSCs labeled with QTracker605 was infused, and animals were euthanized after 60, 120, or 240 minutes. Lungs, liver, spleen, heart, kidney, testis, and intestine were cryopreserved, followed by 3D cryo-imaging of each organ. At 60 minutes, 82% ± 9.7% of cells were detected; detection decreased to 60% ± 17% and 66% ± 22% at 120 and 240 minutes, respectively. At day 2, 0.06% of cells were detected, and this level remained constant at days 4 and 8 postinfusion. At 60, 120, and 240 minutes, 99.7% of detected cells were found in the liver, lungs, and spleen, with cells primarily retained in the liver. This is the first study using 3D cryo-imaging to track hMSCs in a rat lung injury model. hMSCs were retained primarily in the liver, with fewer detected in lungs and spleen. Significance Effective bench-to-bedside clinical translation of cellular therapies requires careful understanding of cell fate through tracking. Tracking cells is important to measure cell retention so that delivery methods and cell dose can be optimized and so that biodistribution and clearance can be defined to better understand potential off-target toxicity and redosing strategies. This article demonstrates, for the first time, the use of three-dimensional cryo-imaging for single-cell quantitative tracking of intravenous infused clinical-grade mesenchymal stem cells in a clinically relevant model of lung injury. The important information learned in this study will help guide future clinical and translational stem cell therapies for lung injuries.
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Affiliation(s)
- Eric G Schmuck
- Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Jill M Koch
- Cardiovascular Research Center, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - John M Centanni
- Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Timothy A Hacker
- Cardiovascular Research Center, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Rudolf K Braun
- Department of Pediatrics, University of Wisconsin, Madison, Wisconsin, USA
| | - Marlowe Eldridge
- Department of Pediatrics, University of Wisconsin, Madison, Wisconsin, USA
| | - Derek J Hei
- Waisman Biomanufacturing, Madison, Wisconsin, USA
| | - Peiman Hematti
- Department of Medicine, Division of Hematology/Oncology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
- University of Wisconsin Carbone Cancer Center, Madison, Wisconsin, USA
| | - Amish N Raval
- Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
- Department of Biomedical Engineering, University of Wisconsin, Madison, Wisconsin, USA
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11
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Gómez-Icazbalceta G, Ruiz-Rivera MB, Lamoyi E, Huerta L. FRET in the Analysis of In Vitro Cell-Cell Fusion by Flow Cytometry. Methods Mol Biol 2016; 1313:217-27. [PMID: 25947668 DOI: 10.1007/978-1-4939-2703-6_16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Cell-cell fusion is a frequent event in nature leading to modification of cell fate. In this chapter, we describe a flow cytometric procedure for the quantitative assessment of in vitro cell-cell fusion events that allows the discrimination of fused from aggregated cells. The assay is based on the differential labeling of fusion partners with lipophilic fluorescent probes DiI (red) and DiO (green). Double fluorescent fused cells can be detected after coculturing by means of a flow cytometer equipped with a 488 nm laser. Fusion events can be distinguished from cell aggregates by the enhancement of the DiI red fluorescence intensity due to resonance energy transfer between the two probes occurring in the fused but not in the aggregated cell population.
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Affiliation(s)
- Guillermo Gómez-Icazbalceta
- Department of Immunology, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 3er. Circuito Exterior S/N, Apartado Postal 70228, Distrito Federal, C.P. 04510, México
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Mahajan V, Gaymalov Z, Alakhova D, Gupta R, Zucker IH, Kabanov AV. Horizontal gene transfer from macrophages to ischemic muscles upon delivery of naked DNA with Pluronic block copolymers. Biomaterials 2015; 75:58-70. [PMID: 26480472 DOI: 10.1016/j.biomaterials.2015.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 09/30/2015] [Accepted: 10/01/2015] [Indexed: 12/31/2022]
Abstract
Intramuscular administration of plasmid DNA (pDNA) with non-ionic Pluronic block copolymers increases gene expression in injected muscles and lymphoid organs. We studied the role of immune cells in muscle transfection upon inflammation. Local inflammation in murine hind limb ischemia model (MHLIM) drastically increased DNA, RNA and expressed protein levels in ischemic muscles injected with pDNA/Pluronic. The systemic inflammation (MHLIM or peritonitis) also increased expression of pDNA/Pluronic in the muscles. When pDNA/Pluronic was injected in ischemic muscles the reporter gene, Green Fluorescent Protein (GFP) co-localized with desmin(+) muscle fibers and CD11b(+) macrophages (MØs), suggesting transfection of MØs along with the muscle cells. P85 enhanced (∼ 4 orders) transfection of MØs with pDNA in vitro. Moreover, adoptively transferred MØs were shown to pass the transgene to inflamed muscle cells in MHLIM. Using a co-culture of myotubes (MTs) and transfected MØs expressing a reporter gene under constitutive (cmv-luciferase) or muscle specific (desmin-luciferase) promoter we demonstrated that P85 enhances horizontal gene transfer from MØ to MTs. Therefore, MØs can play an important role in muscle transfection with pDNA/Pluronic during inflammation, with both inflammation and Pluronic contributing to the increased gene expression. pDNA/Pluronic has potential for therapeutic gene delivery in muscle pathologies that involve inflammation.
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Affiliation(s)
- Vivek Mahajan
- Division of Molecular Pharmaceutics, Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA; Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA
| | - Zagit Gaymalov
- Division of Molecular Pharmaceutics, Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA; Department of Pharmaceutical Sciences and Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA
| | - Daria Alakhova
- Division of Molecular Pharmaceutics, Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA
| | - Richa Gupta
- Division of Molecular Pharmaceutics, Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA
| | - Irving H Zucker
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA
| | - Alexander V Kabanov
- Division of Molecular Pharmaceutics, Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA; Department of Pharmaceutical Sciences and Center for Drug Delivery and Nanomedicine, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA; Laboratory of Chemical Design of Bionanomaterials, Faculty of Chemistry, M.V. Lomonosov Moscow State University, 119899 Moscow, Russia.
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Schoelermann J, Burtey A, Allouni ZE, Gerdes HH, Cimpan MR. Contact-dependent transfer of TiO₂ nanoparticles between mammalian cells. Nanotoxicology 2015; 10:204-15. [PMID: 26037905 DOI: 10.3109/17435390.2015.1048322] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Cellular organelles have been shown to shuttle between cells in co-culture. We hereby show that titanium dioxide (TiO2) nanoparticles (NPs) can be transferred in such a manner, between cells in direct contact, along with endosomes and lysosomes. A co-culture system was employed for this purpose and the NP transfer was observed in mammalian cells including normal rat kidney (NRK) and HeLa cells. We found that the small GTPase Arf6 facilitates the intercellular transfer of smaller NPs and agglomerates. Spherical, anatase nano-TiO2 with sizes of 5 (Ti5) and 40 nm (Ti40) were used in this study. Humans are increasingly exposed to TiO2 NPs from external sources such as constituents of foods, cosmetics, and pharmaceuticals, or from internal sources represented by Ti-based implants, which release NPs upon abrasion. Exposure to 5 mg/l of Ti5 and Ti40 for 24 h did not affect cellular viability but modified their ability to communicate with surrounding cells. Altogether, our results have important implications for the design of nanomedicines, drug delivery and toxicity.
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Affiliation(s)
- Julia Schoelermann
- a Department of Biomedicine, Faculty of Medicine and Dentistry , University of Bergen , Bergen , Norway and
| | - Anne Burtey
- a Department of Biomedicine, Faculty of Medicine and Dentistry , University of Bergen , Bergen , Norway and
| | - Zouhir Ekeland Allouni
- b Division of Biomaterials, Department of Clinical Dentistry, Faculty of Medicine and Dentistry , University of Bergen , Bergen , Norway
| | - Hans-Hermann Gerdes
- a Department of Biomedicine, Faculty of Medicine and Dentistry , University of Bergen , Bergen , Norway and
| | - Mihaela Roxana Cimpan
- b Division of Biomaterials, Department of Clinical Dentistry, Faculty of Medicine and Dentistry , University of Bergen , Bergen , Norway
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Kshitiz, Afzal J, Suhail Y, Ahn EH, Goyal R, Hubbi ME, Hussaini Q, Ellison DD, Goyal J, Nacev B, Kim DH, Lee JH, Frankel S, Gray K, Bankoti R, Chien AJ, Levchenko A. Control of the interface between heterotypic cell populations reveals the mechanism of intercellular transfer of signaling proteins. Integr Biol (Camb) 2015; 7:364-72. [PMID: 25784457 PMCID: PMC11056238 DOI: 10.1039/c4ib00209a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Direct intercellular transfer of cellular components is a recently described general mechanism of cell–cell communication. It is a more non-specific mode of intercellular communication that is not actively controlled by the participating cells. Though membrane bound proteins and small non-protein cytosolic components have been shown to be transferred between cells, the possibility of transfer of cytosolic proteins has not been clearly established, and its mechanism remains unexplained. Using a cell–cell pair of metastatic melanoma and endothelial cells, known to interact at various stages during cancer progression, we show that cytosolic proteins can indeed be transferred between heterotypic cells. Using precise relative cell patterning we provide evidence that this transfer depends on extent of the interface between heterotypic cell populations. This result is further supported by a mathematical model capturing various experimental conditions. We further demonstrate that cytosolic protein transfer can have important functional consequences for the tumor–stroma interactions, e.g., in heterotypic transfer of constitutively activated BRAF, a common melanoma associated mutation, leading to an enhanced activation of the downstream MAPK pathway. Our results suggest that cytosolic protein transfer can have important consequences for regulation of processes involving physical co-location of heterotypic cell types, particularly in invasive cancer growth.
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15
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Sakurai T, Woolls MJ, Jin SW, Murakami M, Simons M. Inter-cellular exchange of cellular components via VE-cadherin-dependent trans-endocytosis. PLoS One 2014; 9:e90736. [PMID: 24603875 PMCID: PMC3946293 DOI: 10.1371/journal.pone.0090736] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 02/05/2014] [Indexed: 11/18/2022] Open
Abstract
Cell-cell communications typically involve receptor-mediated signaling initiated by soluble or cell-bound ligands. Here, we report a unique mode of endocytosis: proteins originating from cell-cell junctions and cytosolic cellular components from the neighboring cell are internalized, leading to direct exchange of cellular components between two adjacent endothelial cells. VE-cadherins form transcellular bridges between two endothelial cells that are the basis of adherence junctions. At such adherens junction sites, we observed the movement of the entire VE-cadherin molecule from one endothelial cell into the other with junctional and cytoplasmic components. This phenomenon, here termed trans-endocytosis, requires the establishment of a VE-cadherin homodimer in trans with internalization proceeding in a Rac1-, and actomyosin-dependent manner. Importantly, the trans-endocytosis is not dependent on any known endocytic pathway including clathrin-dependent endocytosis, macropinocytosis or phagocytosis. This novel form of cell-cell communications, leading to a direct exchange of cellular components, was observed in 2D and 3D-cultured endothelial cells as well as in the developing zebrafish vasculature.
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Affiliation(s)
- Takashi Sakurai
- Yale Cardiovascular Research Center and Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, United States of America
- * E-mail:
| | - Melissa J. Woolls
- Yale Cardiovascular Research Center and Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Suk-Won Jin
- Yale Cardiovascular Research Center and Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Masahiro Murakami
- Yale Cardiovascular Research Center and Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Michael Simons
- Yale Cardiovascular Research Center and Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, United States of America
- Department of Cell Biology, Yale University School of Medicine, New Haven, Connecticut, United States of America
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LEHMANN TOMASZP, FILIPIAK KRYSTYNA, JUZWA WOJCIECH, SUJKA-KORDOWSKA PATRYCJA, JAGODZIŃSKI PAWEŁP, ZABEL MACIEJ, GŁOWACKI JAKUB, MISTERSKA EWA, WALCZAK MICHAŁ, GŁOWACKI MACIEJ. Co-culture of human nucleus pulposus cells with multipotent mesenchymal stromal cells from human bone marrow reveals formation of tunnelling nanotubes. Mol Med Rep 2013; 9:574-82. [DOI: 10.3892/mmr.2013.1821] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 11/01/2013] [Indexed: 11/06/2022] Open
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17
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Modeling intercellular transfer of biomolecules through tunneling nanotubes. Bull Math Biol 2013; 75:1400-16. [PMID: 23417627 DOI: 10.1007/s11538-013-9819-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Accepted: 01/21/2013] [Indexed: 10/27/2022]
Abstract
Tunneling nanotubes (TNTs) have previosly been observed as long and thin transient structures forming between cells and intercellular protein transfer through them has been experimentally verified. It is hypothesized that this may be a physiologically important means of cell-cell communication. This paper attempts to give a simple model for the rates of transfer of molecules across these TNTs at different distances. We describe the transfer of both cytosolic and membrane bound molecules between neighboring populations of cells and argue how the lifetime of the TNT, the diffusion rate, distance between cells, and the size of the molecules may affect their transfer. The model described makes certain predictions and opens a number of questions to be explored experimentally.
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Tarakanov AO, Goncharova LB. Cell-cell nanotubes: Tunneling through several types of synapses. Commun Integr Biol 2013; 2:359-61. [PMID: 19721891 DOI: 10.4161/cib.2.4.8289] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2009] [Accepted: 02/24/2009] [Indexed: 11/19/2022] Open
Abstract
Nanotube can be generally seen as a nanoscale cylindrical structure. Membrane (or tunneling) nanotube (TNT) is a cytoplasmic tunnel between two cells. Such direct cell-cell channel is used for a physical transport of biochemical cargo, whereas nanotubular networks between cells may be a novel principle of communicative and integrative biology. Recently, TNTs and their networks were discovered in plant cells and then they were reported also in animal cells. Just the reverse, a notion of plant synapse has been also proposed only recently, long after the corresponding notion of neuronal synapse in animals. However, both TNTs and synapses seem to be closely related and evolutionary conserved structures through different types of cells. Accordingly, this mini-review aims to demonstrate that TNTs may represent one of the deep functional similarities between neuronal, immune, viral and plant synapses.
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Affiliation(s)
- Alexander O Tarakanov
- St. Petersburg Institute for Informatics and Automation; Russian Academy of Sciences; St. Petersburg, Russia
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David MS, Huynh MD, Kelly E, Rizos H, Coleman H, Rogers G, Zoellner H. Membrane and cytoplasmic marker exchange between malignant neoplastic cells and fibroblasts via intermittent contact: increased tumour cell diversity independent of genetic change. J Pathol 2012; 228:495-505. [PMID: 22692803 DOI: 10.1002/path.4063] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 05/22/2012] [Accepted: 05/27/2012] [Indexed: 12/29/2022]
Abstract
We previously demonstrated that human osteosarcoma cells (SAOS-2) induce contact-dependent apoptosis in endothelium, and expected similar apoptosis in human gingival fibroblasts (h-GF) using SAOS-2 alkaline phosphatase (AP) to identify cells. However, h-GF apoptosis did not occur, despite reduction in AP-negative h-GF number (p < 0.01) and enhancement of this by h-GF TNFα pretreatment (p < 0.01). We suggest that TNFα-enhanced transfer of membrane AP from SAOS-2 to h-GF would explain these data. This idea was investigated using fluorescence prelabelled cells and confocal laser scanning microscopy. Co-cultures of membrane-labelled h-GF (marker-DiO) and SAOS-2 (marker-DiD) generated dual-labelled cells, primarily at the expense of single labelled h-GF (p < 0.001), suggesting predominant membrane transfer from SAOS-2 to h-GF. However, opposite directional transfer predominated when membrane labels were reversed; SAOS-2 further expressed green fluorescent protein (GFP) in cytoplasm and nuclei, and h-GF additionally bore nuclear label (Syto59) (p < 0.001). Cytoplasmic exchange was investigated using h-GF prelabelled with cytoplasmic DDAO-SE and nuclear Syto59, co-cultured with SAOS-2 expressing GFP in cytoplasm and nuclei, and predominant cytoplasmic marker transferred from h-GF to SAOS-2 (p < 0.05). Pretreating h-GF with TNFα increased exchange of membrane markers (p < 0.04) but did not affect either cell surface area profile or circularity. Dual-labelled cells had a morphological phenotype differing from SAOS-2 and h-GF (p < 0.001). Time-lapse microscopy revealed extensive migration of SAOS-2 and cell process contact with h-GF, with the appearance of SAOS-2 indulging in 'cellular sipping' from h-GF. Similar exchange of membrane was seen between h-GF and with other cell lines (melanoma MeIRMu, NM39, WMM175, MM200-B12; osteosarcoma U20S; ovarian carcinoma cells PE01, PE04 and COLO316), while cytoplasmic sharing was also seen in all cell lines other than U20S. We suggest that in some neoplasms, cellular sipping may contribute to phenotypic change and the generation of diverse tumour cell populations independent of genetic change, raising the possibility of a role in tumour progression.
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Affiliation(s)
- Manu S David
- Cellular and Molecular Pathology Research Unit, Department of Oral Pathology and Oral Medicine, University of Sydney, Westmead Centre for Oral Health, Westmead Hospital, Westmead, NSW, Australia
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20
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Strassburg S, Hodson NW, Hill PI, Richardson SM, Hoyland JA. Bi-directional exchange of membrane components occurs during co-culture of mesenchymal stem cells and nucleus pulposus cells. PLoS One 2012; 7:e33739. [PMID: 22438989 PMCID: PMC3305345 DOI: 10.1371/journal.pone.0033739] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 02/16/2012] [Indexed: 02/07/2023] Open
Abstract
Mesenchymal stem cell (MSC)-based therapies have been proposed as novel treatments for intervertebral disc (IVD) degeneration. We have previously demonstrated that when MSCs are co-cultured with nucleus pulposus (NP) cells with direct cell-cell contact, they differentiate along the NP lineage and simultaneously stimulate the degenerate NP cell population to regain a normal (non-degenerate) phenotype, an effect which requires cell-cell communication. However, the mechanisms by which NP cells and MSCs interact in this system are currently unclear. Thus, in this study we investigated a range of potential mechanisms for exchange of cellular components or information that may direct these changes, including cell fusion, gap-junctional communication and exchange of membrane components by direct transfer or via microvesicle formation. Flow cytometry of fluorescently labeled MSCs and NP cells revealed evidence of some cell fusion and formation of gapjunctions, although at the three timepoints studied these phenomena were detectable only in a small proportion of cells. While these mechanisms may play a role in cell-cell communication, the data suggests they are not the predominant mechanism of interaction. However, flow cytometry of fluorescently dual-labeled cells showed that extensive bi-directional transfer of membrane components is operational during direct co-culture of MSCs and NP cells. Furthermore, there was also evidence for secretion and internalization of membrane-bound microvesicles by both cell types. Thus, this study highlights bi-directional intercellular transfer of membrane components as a possible mechanism of cellular communication between MSC and NP cells.
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Affiliation(s)
- Sandra Strassburg
- Regenerative Medicine, School of Biomedicine, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, United Kingdom
| | - Nigel W. Hodson
- Regenerative Medicine, School of Biomedicine, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, United Kingdom
| | - Patrick I. Hill
- School of Chemical Engineering, Faculty of Engineering and Physical Sciences, The University of Manchester, Manchester, United Kingdom
| | - Stephen M. Richardson
- Regenerative Medicine, School of Biomedicine, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, United Kingdom
| | - Judith A. Hoyland
- Regenerative Medicine, School of Biomedicine, Faculty of Medical and Human Sciences, The University of Manchester, Manchester, United Kingdom
- * E-mail:
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Rolf HJ, Niebert S, Niebert M, Gaus L, Schliephake H, Wiese KG. Intercellular transport of Oct4 in mammalian cells: a basic principle to expand a stem cell niche? PLoS One 2012; 7:e32287. [PMID: 22359678 PMCID: PMC3281129 DOI: 10.1371/journal.pone.0032287] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 01/26/2012] [Indexed: 11/21/2022] Open
Abstract
Background The octamer-binding transcription factor 4 (Oct4) was originally described as a marker of embryonic stem cells. Recently, the role of Oct4 as a key regulator in pluripotency was shown by its ability to reprogram somatic cells in vitro, either alone or in concert with other factors. While artificial induction of pluripotency using transcription factors is possible in mammalian cell culture, it remains unknown whether a potential natural transfer mechanism might be of functional relevance in vivo. The stem cell based regeneration of deer antlers is a unique model for rapid and complete tissue regeneration in mammals and therefore most suitable to study such mechanisms. Here, the transfer of pluripotency factors from resident stem cell niche cells to differentiated cells could recruit more stem cells and start rapid tissue regeneration. Methodology/Principal Findings We report on the ability of STRO-1+ deer antlerogenic mesenchymal stem cells (DaMSCs) to transport Oct4 via direct cell-to-cell connections. Upon cultivation in stem cell expansion medium, we observed nuclear Oct4 expression in nearly all cells. A number of these cells exhibit Oct4 expression not only in the nucleus, but also with perinuclear localisation and within far-ranging intercellular connections. Furthermore, many cells showed intercellular connections containing both F-actin and α-tubulin and through which transport could be observed. To proof that intercellular Oct4-transfer has functional consequences in recipient cells we used a co-culture approach with STRO-1+ DaMSCs and a murine embryonic fibroblast indicator cell line (Oct4-GFP MEF). In this cell line a reporter gene (GFP) under the control of an Oct4 responsive element is only expressed in the presence of Oct4. GFP expression in Oct4-GFP cells started after 24 hours of co-culture providing evidence of Oct4 transfer from STRO-1+ DaMSCs to Oct4-GFP MEF target cells. Conclusions Our findings indicate a possible mechanism for the expansion of a resident stem cell niche by induction of pluripotency in surrounding non-niche cells via transfer of transcription factors through intercellular connections. This provides a new approach to explain the rapid annual antler regrowth.
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Affiliation(s)
- Hans J Rolf
- Research Group Experimental Osteology, Department of Maxillofacial Surgery, University Medical Center, University of Goettingen, Goettingen, Germany.
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Inal JM, Ansa-Addo EA, Stratton D, Kholia S, Antwi-Baffour SS, Jorfi S, Lange S. Microvesicles in health and disease. Arch Immunol Ther Exp (Warsz) 2012; 60:107-21. [PMID: 22307363 DOI: 10.1007/s00005-012-0165-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 11/10/2011] [Indexed: 11/30/2022]
Abstract
Microvesicles (or MVs) are plasma membrane-derived vesicles released from most eukaryotic cells constitutively during early apoptosis or at higher levels after chemical or physical stress conditions. This review looks at some of the functions of MVs in terms of intercellular communication and ensuant signal transduction, including the transport of proteins (unconventional protein export) as well as of mRNA and microRNA. MVs also have roles in membrane repair, the removal of misfolded proteins, and in the control of apoptosis. We also discuss the role MVs have been shown to have in invasive growth and metastasis as well as in hypoxia in tumours and cerebral ischaemia. The association of MVs in infectious and autoimmune disease is also summarised together with their possible use as therapeutic agents.
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Affiliation(s)
- Jameel M Inal
- Cellular and Molecular Immunology Research Centre, Faculty of Life Sciences, London Metropolitan University, 166-220 Holloway Road, London, N7 8DB, UK.
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Abstract
Cell-to-cell fusion plays an important role in normal physiology and in different pathological conditions. Early fusion stages mediated by specialized proteins and yielding fusion pores are followed by a pore expansion stage that is dependent on cell metabolism and yet unidentified machinery. Because of a similarity of membrane bending in the fusion pore rim and in highly curved intracellular membrane compartments, in the present study we explored whether changes in the activity of the proteins that generate these compartments affect cell fusion initiated by protein fusogens of influenza virus and baculovirus. We raised the intracellular concentration of curvature-generating proteins in cells by either expressing or microinjecting the ENTH (epsin N-terminal homology) domain of epsin or by expressing the GRAF1 (GTPase regulator associated with focal adhesion kinase 1) BAR (Bin/amphiphysin/Rvs) domain or the FCHo2 (FCH domain-only protein 2) F-BAR domain. Each of these treatments promoted syncytium formation. Cell fusion extents were also influenced by treatments targeting the function of another curvature-generating protein, dynamin. Cell-membrane-permeant inhibitors of dynamin GTPase blocked expansion of fusion pores and dominant-negative mutants of dynamin influenced the syncytium formation extents. We also report that syncytium formation is inhibited by reagents lowering the content and accessibility of PtdIns(4,5)P2, an important regulator of intracellular membrane remodelling. Our findings indicate that fusion pore expansion at late stages of cell-to-cell fusion is mediated, directly or indirectly, by intracellular membrane-shaping proteins.
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Finoulst I, Vink P, Rovers E, Pieterse M, Pinkse M, Bos E, Verhaert P. Identification of low abundant secreted proteins and peptides from primary culture supernatants of human T-cells. J Proteomics 2011; 75:23-33. [PMID: 21515429 DOI: 10.1016/j.jprot.2011.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 03/25/2011] [Accepted: 03/30/2011] [Indexed: 01/26/2023]
Abstract
Live cells continually communicate with their surroundings by the secretion of biomolecules, among which proteins and/or peptides are an important class. As such, these protein/peptide signals which end up in the extracellular medium, reflect the state of a cell in a certain condition, and as by definition are potential biomarkers indicative for specific physiological/pathological processes. We here report on a mass spectrometry based method for the detection and analysis of peptides and proteins secreted in a highly complex background, such as cell culture supernatant. Our method, which combines chromatography, high duty cycle tandem mass spectrometry and bio-informatics, enables the detection of interleukin-2 (IL-2), a cytokine secreted by activated T-cells, present in cell supernatant while representing only 0.006‰ of the total protein content. Moreover, the method allows the mass spectrometric analysis of signaling proteins in a non-targeted way and without any prior immunodepletion of the highest abundant cell culture medium proteins. In this study this is exemplified by the detection of yet two other secretory peptides, i.e., the granulins A and B, in the primary culture supernatant of non-activated T-cells.
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Affiliation(s)
- Inez Finoulst
- Dept. of Biotechnology, Analytical Biotechnology Section, Delft University of Technology, Julianalaan 67, 2628BC, The Netherlands.
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Reinhardt S, Scott I, Simpson HV. Neutrophil and eosinophil chemotactic factors in the excretory/secretory products of sheep abomasal nematode parasites: NCF and ECF in abomasal nematodes. Parasitol Res 2011; 109:627-35. [PMID: 21424403 DOI: 10.1007/s00436-011-2305-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 02/10/2011] [Indexed: 10/18/2022]
Abstract
Both eosinophil chemotactic factor (ECF) and neutrophil chemotactic factor (NCF) activities were demonstrated in excretory/secretory (ES) products and homogenates of Haemonchus contortus and Teladorsagia circumcincta larvae and adult worms in a modified checkerboard assay using a micro-chemotaxis chamber. Neutrophil chemotaxis was seen in 28 of 35 experiments and eosinophil chemotaxis in 20 of 38 experiments. Chemokinetic activity for neutrophils and eosinophils (accounting for 40-50% of total cell migration) was also apparent in only three parasite products for each cell type. Significant NCF activity was present in six of seven adult worm ES products (three of four from T. circumcincta and in all three from H. contortus) and ECF activity in four of five adult ES products, whereas fewer L3 incubates, particularly of T. circumcincta, contained chemotactic activity. All parasite homogenates, with one exception for ECF, were chemotactic for both neutrophils and eosinophils. The sequential use of cellulose ultrafiltration membranes of decreasing pore size did not identify precisely the molecular weight of the NCF and ECF but indicated that the active chemicals were greater than 10 kDa and probably greater than 30 kDa.
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Affiliation(s)
- Stefanie Reinhardt
- S. Reinhardt and B.Ullrich, Tierärztliche Gemeinschaftspraxis, Im Stocken 8A, 21255 Tostedt, Germany
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New Insights into the Mechanisms and Roles of Cell–Cell Fusion. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2011; 289:149-209. [DOI: 10.1016/b978-0-12-386039-2.00005-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Fromentin R, Tardif MR, Tremblay MJ. Inefficient fusion due to a lack of attachment receptor/co-receptor restricts productive human immunodeficiency virus type 1 infection in human hepatoma Huh7.5 cells. J Gen Virol 2010; 92:587-97. [PMID: 21123542 DOI: 10.1099/vir.0.028746-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Since the widespread use of the highly active antiretroviral therapy, the incidence of liver disease has increased to become a leading cause of death among human immunodeficiency virus type 1 (HIV-1)-infected individuals. It can be proposed that the ability of HIV-1 to infect hepatocytes could influence liver diseases. Although the presence of HIV-1 was identified in hepatocytes from HIV-1 seropositive patients, the susceptibility of hepatocytes to HIV-1 infection in vitro remains controversial. We present evidence here that human hepatoma cells are not productively infected with CD4-dependent HIV-1 strains because of inefficient fusion related to an absence of cell surface CD4 and CXCR4. However, these cells display an increased susceptibility to infection with a CD4-independent viral isolate through an interaction with galactosyl ceramide, an alternate receptor for HIV-1. This study provides further understanding of the susceptibility of human hepatocytes to HIV-1 infection. However, in vivo investigations are recommended to consolidate these data.
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Affiliation(s)
- Rémi Fromentin
- Centre de Recherche en Infectiologie, Université Laval, Québec, QC G1V 4G2, Canada
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Watanabe K, Salomon DS. Intercellular transfer regulation of the paracrine activity of GPI-anchored Cripto-1 as a Nodal co-receptor. Biochem Biophys Res Commun 2010; 403:108-13. [PMID: 21055389 DOI: 10.1016/j.bbrc.2010.10.128] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Accepted: 10/27/2010] [Indexed: 01/15/2023]
Abstract
Cripto-1 (CR-1) is a glycosylphosphatidylinositol-anchored glycoprotein which acts as an obligate co-receptor of a TGFβ family ligand, Nodal. Previous studies have demonstrated that CR-1 functions in a paracrine fashion by a cellular mechanism which has not been fully described. This paracrine activity was observed only when CR-1 was expressed as a membrane-bound form and was abolished when CR-1 was expressed in a soluble form. In the current study, we found that there were few biochemical differences in post-translational modifications between membrane-anchored and soluble forms of CR-1. Flow cytometric analysis revealed an intercellular transfer of the membrane-bound form of CR-1 between cells. CR-1-expressing cells formed unique membrane extensions, generated more membrane fragments than control cells, and exhibited enhanced cellular adhesion. Thus, expression of CR-1 may alter the physiochemical properties of the plasma membrane resulting in an enhancement of intercellular transfer of cellular signaling components which may account for the paracrine activity of CR-1.
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Affiliation(s)
- Kazuhide Watanabe
- Mammary Biology & Tumorigenesis Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Gupta K, Kim DH, Ellison D, Smith C, Kundu A, Tuan J, Suh KY, Levchenko A. Lab-on-a-chip devices as an emerging platform for stem cell biology. LAB ON A CHIP 2010; 10:2019-31. [PMID: 20556297 DOI: 10.1039/c004689b] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The advent of stem cell based therapies has brought regenerative medicine into an increased focus as a part of the modern medicine practice, with a potential to treat a myriad of intractable diseases in the future. Stem cells reside in a complex microenvironment presenting them with a multitude of potential cues that are chemical, physical, and mechanical in nature. Conventional techniques used for experiments involving stem cells can only poorly mimic the physiological context, and suffer from imprecise spatial and temporal control, low throughput, lack of scalability and reproducibility, and poor representation of the mechanical and physical cell microenvironment. Novel lab-on-a-chip platforms, on the other hand, can much better mimic the complexity of in vivo tissue milieu and provide a greater control of the parameter variation in a high throughput and scalable manner. This capability may be especially important for understanding the biology and cementing the clinical potential of stem cell based therapies. Here we review microfabrication- and microfluidics-based approaches to investigating the complex biology of stem cell responses to changes in the local microenvironment. In particular, we categorize each method based on the types of controlled inputs it can have on stem cells, including soluble biochemical factors, extracellular matrix interactions, homotypic and heterotypic cell-cell signaling, physical cues (e.g. oxygen tension, pH, temperature), and mechanical forces (e.g. shear, topography, rigidity). Finally, we outline the methods to perform large scale observations of stem cell phenotypes and high-throughput screening of cellular responses to a combination of stimuli, and many new emerging technologies that are becoming available specifically for stem cell applications.
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Affiliation(s)
- Kshitiz Gupta
- Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA
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Hurtig J, Chiu DT, Önfelt B. Intercellular nanotubes: insights from imaging studies and beyond. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2010; 2:260-76. [PMID: 20166114 PMCID: PMC5602582 DOI: 10.1002/wnan.80] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cell-cell communication is critical to the development, maintenance, and function of multicellular organisms. Classical mechanisms for intercellular communication include secretion of molecules into the extracellular space and transport of small molecules through gap junctions. Recent reports suggest that cells also can communicate over long distances via a network of transient intercellular nanotubes. Such nanotubes have been shown to mediate intercellular transfer of organelles as well as membrane components and cytoplasmic molecules. Moreover, intercellular nanotubes have been observed in vivo and have been shown to enhance the transmission of pathogens such as human immunodeficiency virus (HIV)-1 and prions in vitro. These studies indicate that intercellular nanotubes may play a role both in normal physiology and in disease.
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Affiliation(s)
- Johan Hurtig
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Daniel T. Chiu
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Björn Önfelt
- Department of Microbiology Tumour and Cell Biology, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- Division of Cell Physics, Department of Applied Physics, Royal Institute of Technology, SE-106 91 Stockholm, Sweden
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Understanding wiring and volume transmission. ACTA ACUST UNITED AC 2010; 64:137-59. [PMID: 20347870 DOI: 10.1016/j.brainresrev.2010.03.003] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2009] [Revised: 03/17/2010] [Accepted: 03/17/2010] [Indexed: 11/23/2022]
Abstract
The proposal on the existence of two main modes of intercellular communication in the central nervous system (CNS) was introduced in 1986 and called wiring transmission (WT) and volume transmission (VT). The major criterion for this classification was the different characteristics of the communication channel with physical boundaries well delimited in the case of WT (axons and their synapses; gap junctions) but not in the case of VT (the extracellular fluid filled tortuous channels of the extracellular space and the cerebrospinal fluid filled ventricular space and sub-arachnoidal space). The basic dichotomic classification of intercellular communication in the brain is still considered valid, but recent evidence on the existence of unsuspected specialized structures for intercellular communication, such as microvesicles (exosomes and shedding vesicles) and tunnelling nanotubes, calls for a refinement of the original classification model. The proposed updating is based on criteria which are deduced not only from these new findings but also from concepts offered by informatics to classify the communication networks in the CNS. These criteria allowed the identification also of new sub-classes of WT and VT, namely the "tunnelling nanotube type of WT" and the "Roamer type of VT." In this novel type of VT microvesicles are safe vesicular carriers for targeted intercellular communication of proteins, mtDNA and RNA in the CNS flowing in the extracellular fluid along energy gradients to reach target cells. In the tunnelling nanotubes proteins, mtDNA and RNA can migrate as well as entire organelles such as mitochondria. Although the existence and the role of these new types of intercellular communication in the CNS are still a matter of investigation and remain to be fully demonstrated, the potential importance of these novel types of WT and VT for brain function in health and disease is discussed.
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Li M, Aliotta JM, Asara JM, Wu Q, Dooner MS, Tucker LD, Wells A, Quesenberry PJ, Ramratnam B. Intercellular transfer of proteins as identified by stable isotope labeling of amino acids in cell culture. J Biol Chem 2010; 285:6285-97. [PMID: 20026604 PMCID: PMC2825424 DOI: 10.1074/jbc.m109.057943] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2009] [Revised: 12/15/2009] [Indexed: 12/24/2022] Open
Abstract
We tracked the extracellular fate of proteins of pulmonary origin using the technique of stable isotope labeling of amino acids in cell culture (SILAC) in cell-impermeable Transwell culture systems. We find that irradiation to murine lung and lung-derived cells induces their release of proteins that are capable of entering neighboring cells, including primary murine bone marrow cells as well as prostate cancer and hematopoietic cell lines. The functional classification of transferred proteins was broad and included transcription factors, mediators of basic cellular processes and components of the nucleosome remodeling and deacetylase complex, including metastasis associated protein 3 and retinoblastoma-binding protein 7. In further analysis we find that retinoblastoma-binding protein 7 is a transcriptional activator of E-cadherin and that its intercellular transfer leads to decreased gene expression of downstream targets such as N-cadherin and vimentin. SILAC-generated data sets offer a valuable tool to identify and validate potential paracrine networks that may impact relevant biologic processes associated with phenotypic and genotypic signatures of health and disease.
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Affiliation(s)
- Ming Li
- From the Laboratory of Retrovirology, Division of Infectious Diseases, Department of Medicine, The Warren Alpert Medical School of Brown University, and
| | - Jason M. Aliotta
- the Division of Hematology and Oncology, Department of Medicine, Rhode Island Hospital, and The Warren Alpert Medical School of Brown University, Providence, Rhode Island 02903
| | - John M. Asara
- the Mass Spectrometry Core, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, Massachusetts 02215, and
| | - Qian Wu
- the Department of Pathology, Pittsburgh Veterans Administration Medical Center, and University of Pittsburgh, Pittsburgh, Pennsylvania 15219
| | - Mark S. Dooner
- the Division of Hematology and Oncology, Department of Medicine, Rhode Island Hospital, and The Warren Alpert Medical School of Brown University, Providence, Rhode Island 02903
| | - Lynne D. Tucker
- From the Laboratory of Retrovirology, Division of Infectious Diseases, Department of Medicine, The Warren Alpert Medical School of Brown University, and
| | - Alan Wells
- the Department of Pathology, Pittsburgh Veterans Administration Medical Center, and University of Pittsburgh, Pittsburgh, Pennsylvania 15219
| | - Peter J. Quesenberry
- the Division of Hematology and Oncology, Department of Medicine, Rhode Island Hospital, and The Warren Alpert Medical School of Brown University, Providence, Rhode Island 02903
| | - Bharat Ramratnam
- From the Laboratory of Retrovirology, Division of Infectious Diseases, Department of Medicine, The Warren Alpert Medical School of Brown University, and
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