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Bal G, Schneikert J, Li Z, Franke K, Tripathi SR, Zuberbier T, Babina M. CREB Is Indispensable to KIT Function in Human Skin Mast Cells-A Positive Feedback Loop between CREB and KIT Orchestrates Skin Mast Cell Fate. Cells 2023; 13:42. [PMID: 38201246 PMCID: PMC10778115 DOI: 10.3390/cells13010042] [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: 11/29/2023] [Revised: 12/18/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Skin mast cells (MCs) are critical effector cells in acute allergic reactions, and they contribute to chronic dermatoses like urticaria and atopic and contact dermatitis. KIT represents the cells' crucial receptor tyrosine kinase, which orchestrates proliferation, survival, and functional programs throughout the lifespan. cAMP response element binding protein (CREB), an evolutionarily well-conserved transcription factor (TF), regulates multiple cellular programs, but its function in MCs is poorly understood. We recently reported that CREB is an effector of the SCF (Stem Cell Factor)/KIT axis. Here, we ask whether CREB may also act upstream of KIT to orchestrate its functioning. Primary human MCs were isolated from skin and cultured in SCF+IL-4 (Interleukin-4). Pharmacological inhibition (666-15) and RNA interference served to manipulate CREB function. We studied KIT expression using flow cytometry and RT-qPCR, KIT-mediated signaling using immunoblotting, and cell survival using scatterplot and caspase-3 activity. The proliferation and cycle phases were quantified following BrdU incorporation. Transient CREB perturbation resulted in reduced KIT expression. Conversely, microphthalmia transcription factor (MITF) was unnecessary for KIT maintenance. KIT attenuation secondary to CREB was associated with heavily impaired KIT functional outputs, like anti-apoptosis and cell cycle progression. Likewise, KIT-elicited phosphorylation of ERK1/2 (Extracellular Signal-Regulated Kinase 1/2), AKT, and STAT5 (Signal Transducer and Activator of Transcription) was substantially diminished upon CREB inhibition. Surprisingly, the longer-term interference of CREB led to complete cell elimination, in a way surpassing KIT inhibition. Collectively, we reveal CREB as non-redundant in MCs, with its absence being incompatible with skin MCs' existence. Since SCF/KIT regulates CREB activity and, vice versa, CREB is required for KIT function, a positive feedforward loop between these elements dictates skin MCs' fate.
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Affiliation(s)
- Gürkan Bal
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, 12203 Berlin, Germany; (G.B.); (J.S.); (Z.L.); (K.F.); (S.R.T.); (T.Z.)
- Institute of Allergology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Jean Schneikert
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, 12203 Berlin, Germany; (G.B.); (J.S.); (Z.L.); (K.F.); (S.R.T.); (T.Z.)
- Institute of Allergology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Zhuoran Li
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, 12203 Berlin, Germany; (G.B.); (J.S.); (Z.L.); (K.F.); (S.R.T.); (T.Z.)
- Institute of Allergology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Kristin Franke
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, 12203 Berlin, Germany; (G.B.); (J.S.); (Z.L.); (K.F.); (S.R.T.); (T.Z.)
- Institute of Allergology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Shiva Raj Tripathi
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, 12203 Berlin, Germany; (G.B.); (J.S.); (Z.L.); (K.F.); (S.R.T.); (T.Z.)
- Institute of Allergology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Torsten Zuberbier
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, 12203 Berlin, Germany; (G.B.); (J.S.); (Z.L.); (K.F.); (S.R.T.); (T.Z.)
- Institute of Allergology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Magda Babina
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology IA, 12203 Berlin, Germany; (G.B.); (J.S.); (Z.L.); (K.F.); (S.R.T.); (T.Z.)
- Institute of Allergology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
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Wu C, Boey D, Bril O, Grootens J, Vijayabaskar M, Sorini C, Ekoff M, Wilson NK, Ungerstedt JS, Nilsson G, Dahlin JS. Single-cell transcriptomics reveals the identity and regulators of human mast cell progenitors. Blood Adv 2022; 6:4439-4449. [PMID: 35500226 PMCID: PMC9636317 DOI: 10.1182/bloodadvances.2022006969] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/15/2022] [Indexed: 11/20/2022] Open
Abstract
Mast cell accumulation is a hallmark of a number of diseases, including allergic asthma and systemic mastocytosis. Immunoglobulin E-mediated crosslinking of the FcεRI receptors causes mast cell activation and contributes to disease pathogenesis. The mast cell lineage is one of the least studied among the hematopoietic cell lineages, and controversies remain about whether FcεRI expression appears during the mast cell progenitor stage or during terminal mast cell maturation. Here, we used single-cell transcriptomics analysis to reveal a temporal association between the appearance of FcεRI and the mast cell gene signature in CD34+ hematopoietic progenitors in adult peripheral blood. In agreement with these data, the FcεRI+ hematopoietic progenitors formed morphologically, phenotypically, and functionally mature mast cells in long-term culture assays. Single-cell transcriptomics analysis further revealed the expression patterns of prospective cytokine receptors regulating development of mast cell progenitors. Culture assays showed that interleukin-3 (IL-3) and IL-5 promoted disparate effects on progenitor cell proliferation and survival, respectively, whereas IL-33 caused robust FcεRI downregulation. Taken together, we showed that FcεRI expression appears at the progenitor stage of mast cell differentiation in peripheral blood. We also showed that external stimuli regulate FcεRI expression of mast cell progenitors, providing a possible explanation for the variable FcεRI expression levels during mast cell development.
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Affiliation(s)
- Chenyan Wu
- Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Daryl Boey
- Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Oscar Bril
- Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Jennine Grootens
- Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - M.S. Vijayabaskar
- Department of Haematology, Jeffrey Cheah Biomedical Centre, Wellcome–MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | - Chiara Sorini
- Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Maria Ekoff
- Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Nicola K. Wilson
- Department of Haematology, Jeffrey Cheah Biomedical Centre, Wellcome–MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | - Johanna S. Ungerstedt
- Hematology and Regenerative Medicine, HERM, Department of Medicine Huddinge, Karolinska Institutet and ME Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Gunnar Nilsson
- Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Joakim S. Dahlin
- Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
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Babina M, Wang Z, Artuc M, Guhl S, Zuberbier T. MRGPRX2 is negatively targeted by SCF and IL-4 to diminish pseudo-allergic stimulation of skin mast cells in culture. Exp Dermatol 2018; 27:1298-1303. [PMID: 30091263 DOI: 10.1111/exd.13762] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 07/18/2018] [Accepted: 08/03/2018] [Indexed: 12/19/2022]
Abstract
MRGPRX2 was recently uncovered as the "missing link" in clinically relevant mast cell (MC) activation explaining previously puzzling phenomena. It is the receptor for various endogenous ligands and exogenous compounds alike, whose binding evokes rapid degranulation much like allergen-mediated exocytosis. While the perceivable outcomes are similar, the two activation routes differ regarding mechanism and regulation. We recently reported that acute SCF administration curbs responses evoked by MRGPRX2 in human skin MCs. Maintenance of MCs in culture requires the presence of MC supportive factors and renders the cells functionally and molecularly unequal to ex vivo counterparts. Here, we asked whether expansion in culture impacts the pseudo-allergic route, and if so, what contribution SCF and IL-4 play in this scenario. We report that the in vitro micromilieu dampens (but does not erase) pseudo-allergic responses and that this is accompanied by strongly reduced MRGPRX2 expression. Withdrawal of SCF or IL-4 individually, but most potently of both collectively, partially reinstates the MRGPRX2 pathway, revealing that SCF and IL-4 make negative adjustments to the pseudo-allergic pathway. Under all conditions, the FcεRI-triggered route showed the inverse pattern of regulation, substantiating that allergic and pseudo-allergic MC activation can obey opposite rules, hinting at possible competition between them.
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Affiliation(s)
- Magda Babina
- Department of Dermatology and Allergy, Allergy Center Charité, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Zhao Wang
- Department of Dermatology and Allergy, Allergy Center Charité, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Metin Artuc
- Department of Dermatology and Allergy, Allergy Center Charité, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Sven Guhl
- Department of Dermatology and Allergy, Allergy Center Charité, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Torsten Zuberbier
- Department of Dermatology and Allergy, Allergy Center Charité, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
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KIT signaling is dispensable for human mast cell progenitor development. Blood 2017; 130:1785-1794. [PMID: 28790106 DOI: 10.1182/blood-2017-03-773374] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 07/30/2017] [Indexed: 01/17/2023] Open
Abstract
Human hematopoietic progenitors are generally assumed to require stem cell factor (SCF) and KIT signaling during differentiation for the formation of mast cells. Imatinib treatment, which inhibits KIT signaling, depletes mast cells in vivo. Furthermore, the absence of SCF or imatinib treatment prevents progenitors from developing into mast cells in vitro. However, these observations do not mean that mast cell progenitors require SCF and KIT signaling throughout differentiation. Here, we demonstrate that circulating mast cell progenitors are present in patients undergoing imatinib treatment. In addition, we show that mast cell progenitors from peripheral blood survive, mature, and proliferate without SCF and KIT signaling in vitro. Contrary to the prevailing consensus, our results show that SCF and KIT signaling are dispensable for early mast cell development.
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Monsanto MM, White KS, Kim T, Wang BJ, Fisher K, Ilves K, Khalafalla FG, Casillas A, Broughton K, Mohsin S, Dembitsky WP, Sussman MA. Concurrent Isolation of 3 Distinct Cardiac Stem Cell Populations From a Single Human Heart Biopsy. Circ Res 2017; 121:113-124. [PMID: 28446444 DOI: 10.1161/circresaha.116.310494] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 04/19/2017] [Accepted: 04/25/2017] [Indexed: 12/26/2022]
Abstract
RATIONALE The relative actions and synergism between distinct myocardial-derived stem cell populations remain obscure. Ongoing debates on optimal cell population(s) for treatment of heart failure prompted implementation of a protocol for isolation of multiple stem cell populations from a single myocardial tissue sample to develop new insights for achieving myocardial regeneration. OBJECTIVE Establish a robust cardiac stem cell isolation and culture protocol to consistently generate 3 distinct stem cell populations from a single human heart biopsy. METHODS AND RESULTS Isolation of 3 endogenous cardiac stem cell populations was performed from human heart samples routinely discarded during implantation of a left ventricular assist device. Tissue explants were mechanically minced into 1 mm3 pieces to minimize time exposure to collagenase digestion and preserve cell viability. Centrifugation removes large cardiomyocytes and tissue debris producing a single cell suspension that is sorted using magnetic-activated cell sorting technology. Initial sorting is based on tyrosine-protein kinase Kit (c-Kit) expression that enriches for 2 c-Kit+ cell populations yielding a mixture of cardiac progenitor cells and endothelial progenitor cells. Flowthrough c-Kit- mesenchymal stem cells are positively selected by surface expression of markers CD90 and CD105. After 1 week of culture, the c-Kit+ population is further enriched by selection for a CD133+ endothelial progenitor cell population. Persistence of respective cell surface markers in vitro is confirmed both by flow cytometry and immunocytochemistry. CONCLUSIONS Three distinct cardiac cell populations with individualized phenotypic properties consistent with cardiac progenitor cells, endothelial progenitor cells, and mesenchymal stem cells can be successfully concurrently isolated and expanded from a single tissue sample derived from human heart failure patients.
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Affiliation(s)
- Megan M Monsanto
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Kevin S White
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Taeyong Kim
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Bingyan J Wang
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Kristina Fisher
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Kelli Ilves
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Farid G Khalafalla
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Alexandria Casillas
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Kathleen Broughton
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Sadia Mohsin
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Walter P Dembitsky
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.)
| | - Mark A Sussman
- From the San Diego Heart Research Institute, San Diego State University, CA (M.M.M., K.S.W., T.K., B.J.W., K.F., K.I., F.G.K., A.C., K.B., S.M., M.A.S.); and Sharp Memorial Hospital, San Diego, CA (W.P.D.).
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Cop N, Decuyper II, Faber MA, Sabato V, Bridts CH, Hagendorens MM, De Winter BY, De Clerck LS, Ebo DG. Phenotypic and functional characterization ofin vitrocultured human mast cells. CYTOMETRY PART B-CLINICAL CYTOMETRY 2016; 92:348-354. [DOI: 10.1002/cyto.b.21399] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 06/09/2016] [Accepted: 07/08/2016] [Indexed: 01/06/2023]
Affiliation(s)
- N Cop
- Department of Immunology; Allergology, Rheumatology, Faculty of Medicine and Health Science, University of Antwerp, Antwerp University Hospital; Antwerp 2610 Belgium
| | - II Decuyper
- Department of Immunology; Allergology, Rheumatology, Faculty of Medicine and Health Science, University of Antwerp, Antwerp University Hospital; Antwerp 2610 Belgium
| | - MA Faber
- Department of Immunology; Allergology, Rheumatology, Faculty of Medicine and Health Science, University of Antwerp, Antwerp University Hospital; Antwerp 2610 Belgium
| | - V Sabato
- Department of Immunology; Allergology, Rheumatology, Faculty of Medicine and Health Science, University of Antwerp, Antwerp University Hospital; Antwerp 2610 Belgium
| | - CH Bridts
- Department of Immunology; Allergology, Rheumatology, Faculty of Medicine and Health Science, University of Antwerp, Antwerp University Hospital; Antwerp 2610 Belgium
| | - MM Hagendorens
- Department of Immunology; Allergology, Rheumatology, Faculty of Medicine and Health Science, University of Antwerp, Antwerp University Hospital; Antwerp 2610 Belgium
- Department of Pediatrics; Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Science, University of Antwerp; Antwerp 2610 Belgium
| | - BY De Winter
- Department of Pediatrics; Laboratory of Experimental Medicine and Pediatrics, Faculty of Medicine and Health Science, University of Antwerp; Antwerp 2610 Belgium
| | - LS De Clerck
- Department of Immunology; Allergology, Rheumatology, Faculty of Medicine and Health Science, University of Antwerp, Antwerp University Hospital; Antwerp 2610 Belgium
| | - DG Ebo
- Department of Immunology; Allergology, Rheumatology, Faculty of Medicine and Health Science, University of Antwerp, Antwerp University Hospital; Antwerp 2610 Belgium
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Babina M, Guhl S, Artuc M, Trivedi NN, Zuberbier T. Phenotypic variability in human skin mast cells. Exp Dermatol 2016; 25:434-9. [PMID: 26706922 DOI: 10.1111/exd.12924] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2015] [Indexed: 12/17/2022]
Abstract
Mast cells (MCs) are unique constituents of the human body. While inter-individual differences may influence the ways by which MCs operate in their skin habitat, they have not been surveyed in a comprehensive manner so far. We therefore set out to quantify skin MC variability in a large cohort of subjects. Pathophysiologically relevant key features were quantified and correlated: transcripts of c-kit, FcεRIα, FcεRIβ, FcεRIγ, histidine decarboxylase, tryptase, and chymase; surface expression of c-Kit, FcεRIα; activity of tryptase, and chymase; histamine content and release triggered by FcεRI and Ca(2+) ionophore. While there was substantial variability among subjects, it strongly depended on the feature under study (coefficient of variation 33-386%). Surface expression of FcεRI was positively associated with FcεRIα mRNA content, histamine content with HDC mRNA, and chymase activity with chymase mRNA. Also, MC signature genes were co-regulated in distinct patterns. Intriguingly, histamine levels were positively linked to tryptase and chymase activity, whereas tryptase and chymase activity appeared to be uncorrelated. FcεRI triggered histamine release was highly variable and was unrelated to FcεRI expression but unexpectedly tightly correlated with histamine release elicited by Ca(2+) ionophore. This most comprehensive and systematic work of its kind provides not only detailed insights into inter-individual variability in MCs, but also uncovers unexpected patterns of co-regulation among signature attributes of the lineage. Differences in MCs among humans may well underlie clinical responses in settings of allergic reactions and complex skin disorders alike.
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Affiliation(s)
- Magda Babina
- Department of Dermatology and Allergy, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Sven Guhl
- Department of Dermatology and Allergy, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Metin Artuc
- Department of Dermatology and Allergy, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Neil N Trivedi
- Veterans Affairs Medical Center, San Francisco, CA, USA.,Department of Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Torsten Zuberbier
- Department of Dermatology and Allergy, Charité Universitätsmedizin Berlin, Berlin, Germany
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Le Gall M, Crépin R, Neiveyans M, Auclair C, Fan Y, Zhou Y, Marks JD, Pèlegrin A, Poul MA. Neutralization of KIT Oncogenic Signaling in Leukemia with Antibodies Targeting KIT Membrane Proximal Domain 5. Mol Cancer Ther 2015; 14:2595-605. [PMID: 26358753 DOI: 10.1158/1535-7163.mct-15-0321] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 08/20/2015] [Indexed: 01/09/2023]
Abstract
KIT is a cell surface tyrosine kinase receptor whose ligand stem cell factor (SCF) triggers homodimerization and activation of downstream effector pathways involved in cell survival, proliferation, homing, or differentiation. KIT-activating mutations are major oncogenic drivers in subsets of acute myeloid leukemia (AML), in mast cell leukemia, and in gastrointestinal stromal tumors (GIST). The overexpression of SCF and/or wild-type (WT) KIT is also observed in a number of cancers, including 50% of AML and small cell lung cancer. The use of tyrosine kinase inhibitors (TKI) in these pathologies is, however, hampered by initial or acquired resistance following treatment. Using antibody phage display, we obtained two antibodies (2D1 and 3G1) specific for the most membrane proximal extracellular immunoglobulin domain (D5) of KIT, which is implicated in KIT homodimerization. Produced as single chain variable antibody fragments fused to the Fc fragment of a human IgG1, bivalent 2D1-Fc and 3G1-Fc inhibited KIT-dependent growth of leukemic cell lines expressing WT KIT (UT7/Epo) or constitutively active KIT mutants, including the TKI imatinib-resistant KIT D816V mutant (HMC1.2 cell line). In all models, either expressing WT KIT or mutated KIT, 2D1 and 3G1-Fc induced KIT internalization and sustained surface downregulation. However, interestingly, KIT degradation was only observed in leukemic cell lines with oncogenic KIT, a property likely to limit the toxicity of these antibodies in patients. These fully human antibody formats may represent therapeutic tools to target KIT signaling in leukemia or GIST, and to bypass TKI resistance of certain KIT mutants.
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Affiliation(s)
- Marianne Le Gall
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France. INSERM, U1194, Montpellier, France. Université de Montpellier, Montpellier, France. Institut Régional du Cancer de Montpellier, Montpellier, France. Laboratoire de Biologie et Pharmacologie Appliquée, CNRS UMR8113, École Normale Supérieure de Cachan, Cachan, France
| | - Ronan Crépin
- Laboratoire de Biologie et Pharmacologie Appliquée, CNRS UMR8113, École Normale Supérieure de Cachan, Cachan, France
| | - Madeline Neiveyans
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France. INSERM, U1194, Montpellier, France. Université de Montpellier, Montpellier, France. Institut Régional du Cancer de Montpellier, Montpellier, France
| | - Christian Auclair
- Laboratoire de Biologie et Pharmacologie Appliquée, CNRS UMR8113, École Normale Supérieure de Cachan, Cachan, France
| | - Yongfeng Fan
- Department of Anesthesia, University of California, San Francisco, San Francisco, California
| | - Yu Zhou
- Department of Anesthesia, University of California, San Francisco, San Francisco, California
| | - James D Marks
- Department of Anesthesia, University of California, San Francisco, San Francisco, California
| | - André Pèlegrin
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France. INSERM, U1194, Montpellier, France. Université de Montpellier, Montpellier, France. Institut Régional du Cancer de Montpellier, Montpellier, France
| | - Marie-Alix Poul
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France. INSERM, U1194, Montpellier, France. Université de Montpellier, Montpellier, France. Institut Régional du Cancer de Montpellier, Montpellier, France.
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9
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Pradier A, Tabone‐Eglinger S, Huber V, Bosshard C, Rigal E, Wehrle‐Haller B, Roosnek E. Peripheral bloodCD56brightNKcells respond to stem cell factor and adhere to its membrane‐bound form after upregulation of c‐kit. Eur J Immunol 2013; 44:511-20. [DOI: 10.1002/eji.201343868] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 09/02/2013] [Accepted: 10/14/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Amandine Pradier
- Division of HematologyDepartment of Internal MedicineGeneva University Hospitals and University of Geneva Switzerland
| | - Severine Tabone‐Eglinger
- Department of Cell Physiology and MetabolismGeneva Medical SchoolUniversity of Geneva Geneva Switzerland
| | - Vincent Huber
- Division of HematologyDepartment of Internal MedicineGeneva University Hospitals and University of Geneva Switzerland
| | - Carine Bosshard
- Division of HematologyDepartment of Internal MedicineGeneva University Hospitals and University of Geneva Switzerland
| | - Emmanuel Rigal
- Division of HematologyDepartment of Internal MedicineGeneva University Hospitals and University of Geneva Switzerland
| | - Bernhard Wehrle‐Haller
- Department of Cell Physiology and MetabolismGeneva Medical SchoolUniversity of Geneva Geneva Switzerland
| | - Eddy Roosnek
- Division of HematologyDepartment of Internal MedicineGeneva University Hospitals and University of Geneva Switzerland
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10
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Rothenberg ME, Nusse Y, Kalisky T, Lee JJ, Dalerba P, Scheeren F, Lobo N, Kulkarni S, Sim S, Qian D, Beachy PA, Pasricha PJ, Quake SR, Clarke MF. Identification of a cKit(+) colonic crypt base secretory cell that supports Lgr5(+) stem cells in mice. Gastroenterology 2012; 142:1195-1205.e6. [PMID: 22333952 PMCID: PMC3911891 DOI: 10.1053/j.gastro.2012.02.006] [Citation(s) in RCA: 187] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 02/01/2012] [Accepted: 02/02/2012] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Paneth cells contribute to the small intestinal niche of Lgr5(+) stem cells. Although the colon also contains Lgr5(+) stem cells, it does not contain Paneth cells. We investigated the existence of colonic Paneth-like cells that have a distinct transcriptional signature and support Lgr5(+) stem cells. METHODS We used multicolor fluorescence-activated cell sorting to isolate different subregions of colon crypts, based on known markers, from dissociated colonic epithelium of mice. We performed multiplexed single-cell gene expression analysis with quantitative reverse transcriptase polymerase chain reaction followed by hierarchical clustering analysis to characterize distinct cell types. We used immunostaining and fluorescence-activated cell sorting analyses with in vivo administration of a Notch inhibitor and in vitro organoid cultures to characterize different cell types. RESULTS Multicolor fluorescence-activated cell sorting could isolate distinct regions of colonic crypts. Four major epithelial subtypes or transcriptional states were revealed by gene expression analysis of selected populations of single cells. One of these, the goblet cells, contained a distinct cKit/CD117(+) crypt base subpopulation that expressed Dll1, Dll4, and epidermal growth factor, similar to Paneth cells, which were also marked by cKit. In the colon, cKit(+) goblet cells were interdigitated with Lgr5(+) stem cells. In vivo, this colonic cKit(+) population was regulated by Notch signaling; administration of a γ-secretase inhibitor to mice increased the number of cKit(+) cells. When isolated from mouse colon, cKit(+) cells promoted formation of organoids from Lgr5(+) stem cells, which expressed Kitl/stem cell factor, the ligand for cKit. When organoids were depleted of cKit(+) cells using a toxin-conjugated antibody, organoid formation decreased. CONCLUSIONS cKit marks small intestinal Paneth cells and a subset of colonic goblet cells that are regulated by Notch signaling and support Lgr5(+) stem cells.
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Affiliation(s)
- Michael E. Rothenberg
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California,Department of Medicine, Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California
| | - Ysbrand Nusse
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California
| | - Tomer Kalisky
- Department of Bioengineering, Stanford University, Stanford, California
| | - John J. Lee
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California,Department of Medicine, Division of Oncology, Stanford University School of Medicine, Stanford, California
| | - Piero Dalerba
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California,Department of Medicine, Division of Oncology, Stanford University School of Medicine, Stanford, California
| | - Ferenc Scheeren
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California
| | - Neethan Lobo
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California
| | - Subhash Kulkarni
- Department of Medicine, Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California
| | - Sopheak Sim
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California
| | - Dalong Qian
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California
| | - Philip A. Beachy
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California,Howard Hughes Medical Institute, Chevy Chase, Maryland
| | - Pankaj J. Pasricha
- Department of Medicine, Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California
| | - Stephen R. Quake
- Department of Bioengineering, Stanford University, Stanford, California,Howard Hughes Medical Institute, Chevy Chase, Maryland
| | - Michael F. Clarke
- Stanford Institute for Stem Cell Biology and Regenerative Medicine, Stanford, California,Department of Medicine, Division of Oncology, Stanford University School of Medicine, Stanford, California
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11
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Abstract
Tumor development requires accomplices among white blood cells. Other than macrophages, mast cells have been observed to support the outgrowth of certain neoplasias because of their proangiogenic properties. In some tumor settings, however, mast cells may have a protective role, exerted by their proinflammatory mediators. In prostate cancer, no conclusive data on mast cell function were available. Here, we discuss recent work on the role of mast cells in mouse and human prostate cancer, showing that mast cells can behave alternatively as dangerous promoters, innocent bystanders, or essential guardians of tumors, according to the stage and origin of transformed cells. In particular, mast cells are essential for the outgrowth of early-stage tumors due to their matrix metalloproteinase-9 production, become dispensable in advanced-stage, post-epithelial-to-mesenchymal transition, and are protective against neuroendocrine prostate tumor variants. The common expression of c-Kit by mast cells and neuroendocrine clones suggests a possible competition for the ligand Stem cell factor and offers the chance of curing early-stage disease while preventing neuroendocrine tumors using c-Kit-targeted therapy. This review discusses the implications of these findings on the advocated mast cell-targeted cancer therapy and considers future directions in the study of mast cells and their interactions with other c-Kit-expressing cells.
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Affiliation(s)
- Paola Pittoni
- Molecular Immunology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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12
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Tobío A, Alfonso A, Botana LM. C-kit mutations and PKC crosstalks: PKC translocates to nucleous only in cells HMC560,816. J Cell Biochem 2011; 112:2637-51. [DOI: 10.1002/jcb.23191] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Barth BM, I Altinoğlu E, Shanmugavelandy SS, Kaiser JM, Crespo-Gonzalez D, DiVittore NA, McGovern C, Goff TM, Keasey NR, Adair JH, Loughran TP, Claxton DF, Kester M. Targeted indocyanine-green-loaded calcium phosphosilicate nanoparticles for in vivo photodynamic therapy of leukemia. ACS NANO 2011; 5:5325-5337. [PMID: 21675727 DOI: 10.1021/nn2005766] [Citation(s) in RCA: 137] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Leukemia is one of the most common and aggressive adult cancers, as well as the most prevalent childhood cancer. Leukemia is a cancer of the hematological system and can be divided into a diversity of unique malignancies based on the onset of the disease as well as the specific cell lineages involved. Cancer stem cells, including recently identified leukemia stem cells (LSCs), are hypothesized to be responsible for cancer development, relapse, and resistance to treatment, and new therapeutics targeting these cellular populations are urgently needed. Nontoxic and nonaggregating calcium phosphosilicate nanoparticles (CPSNPs) encapsulating the near-infrared fluoroprobe indocyanine green (ICG) were recently developed for diagnostic imaging and drug delivery as well as for photodynamic therapy (PDT) of solid tumors. Prior studies revealed that specific targeting of CPSNPs allowed for enhanced accumulation within breast cancer tumors, via CD71 targeting, or pancreatic cancer tumors, via gastrin receptor targeting. In the present study, ICG-loaded CPSNPs were evaluated as photosensitizers for PDT of leukemia. Using a novel bioconjugation approach to specifically target CD117 or CD96, surface features enhanced on leukemia stem cells, in vitro ICG-CPSNP PDT of a murine leukemia cell line and human leukemia samples were dramatically improved. Furthermore, the in vivo efficacy of PDT was dramatically enhanced in a murine leukemia model by utilizing CD117-targeted ICG-CPSNPs, resulting in 29% disease-free survival. Altogether, this study demonstrates that leukemia-targeted ICG-loaded CPSNPs offer the promise to effectively treat relapsing and multidrug-resistant leukemia and to improve the life of leukemia patients.
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Affiliation(s)
- Brian M Barth
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA.
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14
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Comparative analysis of c-kit gene expression and c-Kit immunoreactivity in horses with and without obstructive intestinal disease. Vet J 2010; 186:64-9. [DOI: 10.1016/j.tvjl.2009.07.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Revised: 07/01/2009] [Accepted: 07/06/2009] [Indexed: 11/19/2022]
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15
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Murata A, Okuyama K, Sakano S, Kajiki M, Hirata T, Yagita H, Zúñiga-Pflücker JC, Miyake K, Akashi-Takamura S, Moriwaki S, Niida S, Yoshino M, Hayashi SI. A Notch ligand, Delta-like 1 functions as an adhesion molecule for mast cells. THE JOURNAL OF IMMUNOLOGY 2010; 185:3905-12. [PMID: 20810995 DOI: 10.4049/jimmunol.1000195] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Mast cells (MCs) accumulate in chronic inflammatory sites; however, it is not clear which adhesion molecules are involved in this process. Recently, the expression of Notch ligands was reported to be upregulated in inflammatory sites. Although Notch receptors are known as signaling molecules that can activate integrins, their contributions to the adhesion of MCs have not been studied. In this study, we demonstrated that mouse MCs efficiently adhered to stromal cells forced to express a Notch ligand, Delta-like 1 (Dll1). Surprisingly, the adhesion was a consequence of direct cell-cell interaction between MCs and Dll1-expressing stromal cells rather than activation of downstream effectors of Notch receptor(s)-Dll1. The adhesion of MCs to Dll1-expressing stromal cells remained even when the cell metabolism was arrested. The recognition was blocked only by inhibition of Notch receptor(s)-Dll1 interaction by addition of soluble DLL1, or mAbs against Dll1 or Notch2. Taken together, these results indicate that Notch receptor(s) and Dll1 directly promote the adhesion of MCs to stromal cells by acting as adhesion molecules. This appreciation that Notch receptor-ligand interactions have an adhesion function will provide an important clue to molecular basis of accumulation of MCs to inflammatory sites.
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Affiliation(s)
- Akihiko Murata
- Division of Immunology, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine, Tottori University, Yonago, Japan.
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Kirshenbaum AS, Swindle E, Kulka M, Wu Y, Metcalfe DD. Effect of lipopolysaccharide (LPS) and peptidoglycan (PGN) on human mast cell numbers, cytokine production, and protease composition. BMC Immunol 2008; 9:45. [PMID: 18687131 PMCID: PMC2527549 DOI: 10.1186/1471-2172-9-45] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2008] [Accepted: 08/07/2008] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Human mast cell (HuMC) maturation occurs in tissues interfacing with the external environment, exposing both mast cell progenitors and mature mast cells, to bacteria and their products. It is unknown, however, whether long- or short-term exposure to bacteria-derived toll-like receptor (TLR) ligands, such as lipopolysaccharide (LPS) or peptidoglycan (PGN), influences HuMC biology. RESULTS Over 6 wks of culture, LPS had minimal effect on HuMC numbers but increased CD117, tryptase and chymase expression. PGN inhibited HuMC development. For mature mast cells, LPS in the presence of rhSCF (10 ng/ml) increased CD117, tryptase, chymase and carboxypeptidase expression, primarily in CD117low HuMC. LPS decreased FcepsilonRI expression and beta-hexosaminidase release; but had no effect on LTC4 and PGD2 production. PGN reduced HuMC numbers; and CD117 and tryptase expression. IL-1beta and IL-6 (in addition to IL-8 and IL-12) were detected in short-term culture supernatants of LPS treated cells, and reproduced the increases in CD117, tryptase, chymase, and carboxypeptidase expression observed in the presence of LPS. Comparative studies with mouse bone marrow-derived mast cells from wild type, but not TLR4 knockout mice, showed increases in mRNA of mouse mast cell chymases MMCP-1, MMCP-2 and MMCP-4. CONCLUSION PGN inhibits HuMC growth, while LPS exerts its primary effects on mature HuMC by altering cytokine production and protease composition, particularly at low concentrations of SCF. These data demonstrate the ability of bacterial products to alter HuMC mediator production, granular content, and number which may be particularly relevant at mucosal sites where HuMC are exposed to these products.
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Affiliation(s)
- Arnold S Kirshenbaum
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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