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Abstract
The cultivation of corneal-limbal cells in vitro represents an excellent means to generate models to study cornea function and disease processes. These in vitro expanded cornea-limbal epithelial cell cultures are rich in stem cells for cornea, and hence can be used as a cell therapy for cornea-limbal deficiency. This chapter details the primary culture of these cornea-limbal cells, which can be used as model for further studies of the cornea surface.
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Affiliation(s)
- Finbarr O'Sullivan
- National Institute for Cellular Biotechnology and SSPC-SFI, Centre for Pharmaceuticals, Dublin City University, Dublin, Ireland.
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Hosseinzadeh F, Ai J, Ebrahimi-Barough S, Seyhoun I, Hajifathali A, Muhammadnejad S, Hosseinzadeh F, Shadnoush M, Dabiri Oskouei F, Verdi J. Natural Killer Cell Expansion with Autologous Feeder Layer and Anti-CD3 Antibody for Immune Cell Therapy of Hepatocellular Carcinoma. Asian Pac J Cancer Prev 2019; 20:3797-3803. [PMID: 31870124 PMCID: PMC7173374 DOI: 10.31557/apjcp.2019.20.12.3797] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Indexed: 11/25/2022] Open
Abstract
Background: one of the promising approaches for treatment of some cancers is adoptive cell therapy using natural killer (NK) cells. Various methods have been investigated for ex vivo expansion of NK cells in large-scale, but most of them involved cancer or genetically modified cells as feeder layer and also some of them have the risk of T cell contamination and graft-versus-host disease (GVHD). Method: In this study, irradiated autologous peripheral blood mononuclear cells (PBMCs) as feeder layer with an anti-CD3 monoclonal antibody (mAb) were used. For activation and expansion of NK cells, human recombinant IL2 and IL15 were used. After co-culturing of expanded NK cells (eNKC) and isolated NK cells (iNKC) with hepatocellular carcinoma (HCC) cells, the viability of eNKC in compared to iNKC were analyzed by CCK-8 assay and degranulation of NK cells after co-culturing was assayed by measuring CD107a expression. Enzyme-Linked Immunosorbent Assay (ELISA) assay was used for the ability of NK cells to secretion of IFN-γ (interferon-γ) and TNF-α (Tumor Necrosis Factor-α) after co-culture with HCC cells. Real Time PCR analysis was used for expression of human Perforin and Granzyme B genes in the NK cells exposed to target HepG2 cells. Result: This method strongly expanded highly purified NK cells with powerful cytotoxicity against HCC cells. The expanded NK cells showed high level of expression of degranulation marker and human Perforin and Granzyme B genes, and also was secreted larger amounts of TNF-α and IFN-γ compared with fresh isolated NK cells. Conclusion: we proposed an effective method for expansion of cytotoxic NK cells using irradiated autologous PBMC as feeder layer for more successful transfer of allogeneic NK cell in immuno cell therapy of HCC.
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Affiliation(s)
- Faezeh Hosseinzadeh
- Department of Tissue Engineering and Applied Cell Sciences,School of Advanced Technologies in Medicine,Tehran University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering, Qom University of Medical Sciences, Qom, Iran
| | - Jafar Ai
- Department of Tissue Engineering and Applied Cell Sciences,School of Advanced Technologies in Medicine,Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Ebrahimi-Barough
- Department of Tissue Engineering and Applied Cell Sciences,School of Advanced Technologies in Medicine,Tehran University of Medical Sciences, Tehran, Iran
| | - Iman Seyhoun
- Department of Tissue Engineering and Applied Cell Sciences,School of Advanced Technologies in Medicine,Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Hajifathali
- Taleghani Bone Marrow Transplantation Center,Taleghani Hospital,Shahid Beheshti University of Medical Sciences,Tehran, Iran
| | - Samad Muhammadnejad
- Cell-Based Therapies Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mahdi Shadnoush
- Department of Clinical Nutrition, Faculty of Nutrition & Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Javad Verdi
- Department of Tissue Engineering and Applied Cell Sciences,School of Advanced Technologies in Medicine,Tehran University of Medical Sciences, Tehran, Iran
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Lee HR, Son CH, Koh EK, Bae JH, Kang CD, Yang K, Park YS. Expansion of cytotoxic natural killer cells using irradiated autologous peripheral blood mononuclear cells and anti-CD16 antibody. Sci Rep 2017; 7:11075. [PMID: 28894091 PMCID: PMC5593981 DOI: 10.1038/s41598-017-09259-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 07/25/2017] [Indexed: 01/01/2023] Open
Abstract
Natural killer (NK) cells are considered a promising strategy for cancer treatment. Various methods for large-scale NK cell expansion have been developed, but they should guarantee that no viable cells are mixed with the expanded NK cells because most methods involve cancer cells or genetically modified cells as feeder cells. We used an anti-CD16 monoclonal antibody (mAb) and irradiated autologous peripheral blood mononuclear cells (PBMCs) (IrAPs) to provide a suitable environment (activating receptor-ligand interactions) for the NK cell expansion. This method more potently expanded NK cells, and the final product was composed of highly purified NK cells with lesser T-cell contamination. The expanded NK cells showed greater upregulation of various activation receptors, CD107a, and secreted larger amounts of interferon gamma. IrAPs expressed NKG2D ligands and CD48, and coengagement of CD16 with NKG2D and 2B4 caused potent NK cell activation and proliferation. The expanded NK cells were cytotoxic toward various cancer cells in vitro and in vivo. Moreover, irradiation or a chemotherapeutic drug further enhanced this antitumor effect. Therefore, we developed an effective in vitro culture method for large-scale expansion of highly purified cytotoxic NK cells with potent antitumor activity using IrAPs instead of cancer cell-based feeder cells.
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Affiliation(s)
- Hong-Rae Lee
- Department of Research Center, Dongnam Institute of Radiological & Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033, South Korea.,Department of Biochemistry, Pusan National University School of Medicine, Yangsan, 50612, South Korea
| | - Cheol-Hun Son
- Department of Research Center, Dongnam Institute of Radiological & Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033, South Korea
| | - Eun-Kyoung Koh
- Department of Research Center, Dongnam Institute of Radiological & Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033, South Korea
| | - Jae-Ho Bae
- Department of Biochemistry, Pusan National University School of Medicine, Yangsan, 50612, South Korea
| | - Chi-Dug Kang
- Department of Biochemistry, Pusan National University School of Medicine, Yangsan, 50612, South Korea
| | - Kwangmo Yang
- Department of Research Center, Dongnam Institute of Radiological & Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033, South Korea.
| | - You-Soo Park
- Department of Research Center, Dongnam Institute of Radiological & Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033, South Korea.
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Scafetta G, Tricoli E, Siciliano C, Napoletano C, Puca R, Vingolo EM, Cavallaro G, Polistena A, Frati G, De Falco E. Suitability of human Tenon's fibroblasts as feeder cells for culturing human limbal epithelial stem cells. Stem Cell Rev Rep 2014; 9:847-57. [PMID: 23832306 DOI: 10.1007/s12015-013-9451-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Corneal epithelial regeneration through ex vivo expansion of limbal stem cells (LSCs) on 3T3-J2 fibroblasts has revealed some limitations mainly due to the corneal microenvironment not being properly replicated, thus affecting long term results. Insights into the feeder cells that are used to expand LSCs and the mechanisms underlying the effects of human feeder cells have yet to be fully elucidated. We recently developed a standardized methodology to expand human Tenon's fibroblasts (TFs). Here we aimed to investigate whether TFs can be employed as feeder cells for LSCs, characterizing the phenotype of the co-cultures and assessing what human soluble factors are secreted. The hypothesis that TFs could be employed as alternative human feeder layer has not been explored yet. LSCs were isolated from superior limbus biopsies, co-cultured on TFs, 3T3-J2 or dermal fibroblasts (DFs), then analyzed by immunofluorescence (p63α), colony-forming efficiency (CFE) assay and qPCR for a panel of putative stem cell and epithelial corneal differentiation markers (KRT3). Co-cultures supernatants were screened for a set of soluble factors. Results showed that the percentage of p63α(+)LSCs co-cultured onto TFs was significantly higher than those on DFs (p = 0.032) and 3T3-J2 (p = 0.047). Interestingly, LSCs co-cultures on TFs exhibited both significantly higher CFE and mRNA expression levels of ΔNp63α than on 3T3-J2 and DFs (p < 0.0001), showing also significantly greater levels of soluble factors (IL-6, HGF, b-FGF, G-CSF, TGF-β3) than LSCs on DFs. Therefore, TFs could represent an alternative feeder layer to both 3T3-J2 and DFs, potentially providing a suitable microenvironment for LSCs culture.
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Affiliation(s)
- Gaia Scafetta
- Department of Medical-Surgical Science and Biotechnologies, Faculty of Pharmacy and Medicine, University of Rome "Sapienza", C.so della Repubblica 79, 04100, Latina, Italy
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Ye Q, Dong HF, Grevelding CG, Hu M. In vitro cultivation of Schistosoma japonicum-parasites and cells. Biotechnol Adv 2013; 31:1722-37. [DOI: 10.1016/j.biotechadv.2013.09.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Revised: 09/06/2013] [Accepted: 09/08/2013] [Indexed: 11/27/2022]
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Studies on the establishment of a co-culture system of lung stage Schistosoma japonicum with host cells. Parasitol Res 2012; 111:735-48. [DOI: 10.1007/s00436-012-2894-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Accepted: 03/12/2012] [Indexed: 11/25/2022]
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Ehmann UK, DeVries JT, Chen MSC, Adamos AA, Guzman RC, Omary MB. An in vitro model of epithelial cell growth stimulation in the rodent mammary gland. Cell Prolif 2003; 36:177-90. [PMID: 12950387 PMCID: PMC6495930 DOI: 10.1046/j.1365-2184.2003.00265.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Mouse mammary epithelial cell cultures previously described bring about extensive proliferation and a cell population with the appropriate markers for luminal ductal epithelial cells, and also the ability to form normal tissue after implantation into mice. This success may result from a culture environment that resembles certain aspects of the environment in the mammary gland. Mouse mammary epithelial cells, whose proliferation is limited when plated alone, can be stimulated to multiply by contact with lethally irradiated cells of the LA7 rat mammary tumour line. Most of the proliferative stimulus is imparted by direct cell contact between LA7 and mouse mammary cells. Junctions, including adherens junctions, form among all cells in the culture, much as junctions form in the mammary gland. LA7 cells secrete TGFalpha and bFGF, factors found in the mammary gland, and factors to which mouse mammary cells respond in culture. Mouse mammary cells express keratins 8 and 18, markers for luminal cells of the mammary duct. LA7 cells express keratin 14 and vimentin, markers for myoepithelial cells. These facts, taken together, fit a model of cell replacement in an epithelial tissue and also imitate the relationship between luminal ductal cells and myoepithelial cells in the mammary gland. This method of culturing cells is useful, not only for in vitro-in vivo carcinogenesis studies, but also for the study of mechanisms by which growth signals are imparted from one cell to another.
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Affiliation(s)
- U K Ehmann
- Departments of Pathology and Laboratory Services and Medicine, Palo Alto Veterans Affairs Medical Center, 3801 Miranda Ave., Palo Alto, CA, USA.
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Nelson CM, Chen CS. Cell-cell signaling by direct contact increases cell proliferation via a PI3K-dependent signal. FEBS Lett 2002; 514:238-42. [PMID: 11943158 DOI: 10.1016/s0014-5793(02)02370-0] [Citation(s) in RCA: 211] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We report a novel mechanism of cellular growth control. Increasing the density of endothelial or smooth muscle cells in culture increased cell-cell contact and decreased cell spreading, leading to growth arrest. Using a new method to independently control cell-cell contact and cell spreading, we found that introducing cell-cell contact positively regulates proliferation, but that contact-mediated proliferation can be masked by changes in cell spreading: Round cells with many contacts proliferated less than spread cells with none. Physically blocking cell-cell contact or inhibiting PI3K signaling abrogated cell-cell induced proliferation, but inhibiting diffusible paracrine signaling did not. Thus, direct cell-cell contact induces proliferation in these cells.
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Affiliation(s)
- Celeste M Nelson
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, 720 Rutland Avenue, Baltimore, MD 21205, USA
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Ehmann UK, Terris MK. Juxtacrine stimulation of normal and malignant human bladder epithelial cell proliferation. J Urol 2002; 167:735-41. [PMID: 11792963 DOI: 10.1097/00005392-200202000-00075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE We developed a method for culturing normal and malignant human bladder epithelial cells for many generations. MATERIALS AND METHODS Cells from bladder washes or surgical specimens were plated in culture with lethally irradiated cells of the LA7 rat mammary tumor line (American Type Culture Collection, Bethesda, Maryland) at a confluent density and fed regularly. After cells from surgical specimens became confluent they were diluted and subcultured with fresh irradiated LA7 cells. The growth rate was measured by cell counts and cell sorter analysis. Expression of intermediate filaments was determined by immunocytochemical testing. RESULTS All 5 normal and 3 of the 4 tumor specimens developed into long-term cell strains. A single normal strain was carried through passage 11, amounting to 37 cell doublings. Cell numbers doubled in 2 days in medium with 0.5% serum and in 5.6 days in 5% serum. Plating efficiency was almost 100% and cloning efficiency was approximately 9%. LA7 conditioned medium did not stimulate bladder cell proliferation. Two tumor strains were carried through passage 9, amounting to 20 and 27 doublings, respectively. No cell strains expressed signs of senescence at culture termination. Normal and tumor strains expressed keratins 7, 10, 11, 18 and 19, and ZO1 tight junction protein but not vimentin or keratin 14. Umbrella cells comprised the uppermost cell layer in cultures from normal bladder. CONCLUSIONS LA7 feeder cells stimulate human bladder cell proliferation for many generations in culture by a juxtacrine mechanism and promote the expression of differentiated traits.
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Affiliation(s)
- Ursula K Ehmann
- Department of Pathology and Laboratory Services and Section of Urology, Veterans Affairs Palo Alto Health Care System and Department of Urology, Stanford University Medical Center, Stanford, California
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