Publications
2019
Bordoni Valentina, Reina Giacomo, Orecchioni Marco, Furesi Giulia, Thiele Stefanie, Gardin Chiara, Zavan Barbara, Cuniberti Gianaurelio, Bianco Alberto, Rauner Martina, Delogu Lucia G
Stimulation of bone formation by monocyte-activator functionalized graphene oxide in vivo Journal Article
In: Nanoscale, vol. 11, no. 41, pp. 19408–19421, 2019, ISSN: 2040-3372.
Abstract | Links | BibTeX | Tags: Animals, Biocompatible Materials, Bone Morphogenetic Protein 2, Calcium Phosphates, Cell Differentiation, Cell Survival, Coculture Techniques, Graphite, Humans, I2CT, Inbred C57BL, Male, Mesenchymal Stem Cells, Mice, Monocytes, Oncostatin M, Osteoblasts, Osteogenesis, Signal Transduction, Team-Bianco, Tibia, Wnt Proteins
@article{bordoni_stimulation_2019,
title = {Stimulation of bone formation by monocyte-activator functionalized graphene oxide in vivo},
author = {Valentina Bordoni and Giacomo Reina and Marco Orecchioni and Giulia Furesi and Stefanie Thiele and Chiara Gardin and Barbara Zavan and Gianaurelio Cuniberti and Alberto Bianco and Martina Rauner and Lucia G Delogu},
doi = {10.1039/c9nr03975a},
issn = {2040-3372},
year = {2019},
date = {2019-11-01},
journal = {Nanoscale},
volume = {11},
number = {41},
pages = {19408--19421},
abstract = {Nanosystems are able to enhance bone regeneration, a complex process requiring the mutual interplay between immune and skeletal cells. Activated monocytes can communicate pro-osteogenic signals to mesenchymal stem cells and promote osteogenesis. Thus, the activation of monocytes is a promising strategy to improve bone regeneration. Nanomaterials specifically selected to provoke immune-mediated bone formation are still missing. As a proof of concept, we apply here the intrinsic immune-characteristics of graphene oxide (GO) with the well-recognized osteoinductive capacity of calcium phosphate (CaP) in a biocompatible nanomaterial called maGO-CaP (monocytes activator GO complexed with CaP). In the presence of monocytes, the alkaline phosphatase activity and the expression of osteogenic markers increased. Studying the mechanisms of action, we detected an up-regulation of Wnt and BMP signaling, two key osteogenic pathways. The role of the immune activation was evidenced by the over-production of oncostatin M, a pro-osteogenic factor produced by monocytes. Finally, we tested the pro-osteogenic effects of maGO-CaP in vivo. maGO-CaP injected into the tibia of mice enhanced local bone mass and the bone formation rate. Our study suggests that maGO-CaP can activate monocytes to enhance osteogenesis ex vivo and in vivo.},
keywords = {Animals, Biocompatible Materials, Bone Morphogenetic Protein 2, Calcium Phosphates, Cell Differentiation, Cell Survival, Coculture Techniques, Graphite, Humans, I2CT, Inbred C57BL, Male, Mesenchymal Stem Cells, Mice, Monocytes, Oncostatin M, Osteoblasts, Osteogenesis, Signal Transduction, Team-Bianco, Tibia, Wnt Proteins},
pubstate = {published},
tppubtype = {article}
}
Camara Abdouramane, Cordeiro Olga G, Alloush Farouk, Sponsel Janina, Chypre Mélanie, Onder Lucas, Asano Kenichi, Tanaka Masato, Yagita Hideo, Ludewig Burkhard, Flacher Vincent, Mueller Christopher G
Lymph Node Mesenchymal and Endothelial Stromal Cells Cooperate via the RANK-RANKL Cytokine Axis to Shape the Sinusoidal Macrophage Niche Journal Article
In: Immunity, vol. 50, no. 6, pp. 1467–1481.e6, 2019, ISSN: 1097-4180.
Abstract | Links | BibTeX | Tags: Activation, Animals, Biomarkers, Cell Differentiation, Cells, Cellular, Cellular Microenvironment, cytokine, Cytokines, deficiency, Differentiation, Endothelial Cells, ENDOTHELIAL-CELLS, environment, Expression, immune regulation, Immunology, Immunophenotyping, inflammation, LYMPH, LYMPH NODE, Lymph Nodes, lymphatic endothelial cells, Lymphoid Tissue, Macrophage, Macrophages, Mesenchymal Stem Cells, mesenchymal stromal cells, Mice, rank, RANK ligand, Receptor Activator of Nuclear Factor-kappa B, Regulation, Signal Transduction, Stromal Cells, Team-Mueller, transgenic
@article{camara_lymph_2019,
title = {Lymph Node Mesenchymal and Endothelial Stromal Cells Cooperate via the RANK-RANKL Cytokine Axis to Shape the Sinusoidal Macrophage Niche},
author = {Abdouramane Camara and Olga G Cordeiro and Farouk Alloush and Janina Sponsel and Mélanie Chypre and Lucas Onder and Kenichi Asano and Masato Tanaka and Hideo Yagita and Burkhard Ludewig and Vincent Flacher and Christopher G Mueller},
doi = {10.1016/j.immuni.2019.05.008},
issn = {1097-4180},
year = {2019},
date = {2019-01-01},
journal = {Immunity},
volume = {50},
number = {6},
pages = {1467--1481.e6},
abstract = {Tissue-resident macrophages are receptive to specific signals concentrated in cellular niches that direct their cell differentiation and maintenance genetic programs. Here, we found that deficiency of the cytokine RANKL in lymphoid tissue organizers and marginal reticular stromal cells of lymph nodes resulted in the loss of the CD169+ sinusoidal macrophages (SMs) comprising the subcapsular and the medullary subtypes. Subcapsular SM differentiation was impaired in mice with targeted RANK deficiency in SMs. Temporally controlled RANK removal in lymphatic endothelial cells (LECs) revealed that lymphatic RANK activation during embryogenesis and shortly after birth was required for the differentiation of both SM subtypes. Moreover, RANK expression by LECs was necessary for SM restoration after inflammation-induced cell loss. Thus, cooperation between mesenchymal cells and LECs shapes a niche environment that supports SM differentiation and reconstitution after inflammation.},
keywords = {Activation, Animals, Biomarkers, Cell Differentiation, Cells, Cellular, Cellular Microenvironment, cytokine, Cytokines, deficiency, Differentiation, Endothelial Cells, ENDOTHELIAL-CELLS, environment, Expression, immune regulation, Immunology, Immunophenotyping, inflammation, LYMPH, LYMPH NODE, Lymph Nodes, lymphatic endothelial cells, Lymphoid Tissue, Macrophage, Macrophages, Mesenchymal Stem Cells, mesenchymal stromal cells, Mice, rank, RANK ligand, Receptor Activator of Nuclear Factor-kappa B, Regulation, Signal Transduction, Stromal Cells, Team-Mueller, transgenic},
pubstate = {published},
tppubtype = {article}
}
2017
Onder Lucas, Mörbe Urs, Pikor Natalia, Novkovic Mario, Cheng Hung-Wei, Hehlgans Thomas, Pfeffer Klaus, Becher Burkhard, Waisman Ari, Rülicke Thomas, Gommerman Jennifer, Mueller Christopher G, Sawa Shinichiro, Scandella Elke, Ludewig Burkhard
Lymphatic Endothelial Cells Control Initiation of Lymph Node Organogenesis Journal Article
In: Immunity, vol. 47, no. 1, pp. 80–92.e4, 2017, ISSN: 1097-4180.
Abstract | Links | BibTeX | Tags: Animals, Cell Differentiation, Cells, Choristoma, Cultured, Embryo, Endothelial Cells, fibroblastic reticular cells, Inbred C57BL, lymph node organogenesis, Lymph Nodes, lymphatic and blood endothelial cells, lymphoid stromal cells, lymphoid tissue organizer cells, Lymphotoxin beta Receptor, Lysosphingolipid, Mammalian, Mesenchymal Stem Cells, mesenchymal stromal cells, Mice, NF-kappa B, Organogenesis, Receptor Activator of Nuclear Factor-kappa B, Receptors, Signal Transduction, Team-Mueller, transgenic
@article{onder_lymphatic_2017,
title = {Lymphatic Endothelial Cells Control Initiation of Lymph Node Organogenesis},
author = {Lucas Onder and Urs Mörbe and Natalia Pikor and Mario Novkovic and Hung-Wei Cheng and Thomas Hehlgans and Klaus Pfeffer and Burkhard Becher and Ari Waisman and Thomas Rülicke and Jennifer Gommerman and Christopher G Mueller and Shinichiro Sawa and Elke Scandella and Burkhard Ludewig},
doi = {10.1016/j.immuni.2017.05.008},
issn = {1097-4180},
year = {2017},
date = {2017-07-01},
journal = {Immunity},
volume = {47},
number = {1},
pages = {80--92.e4},
abstract = {Lymph nodes (LNs) are strategically situated throughout the body at junctures of the blood vascular and lymphatic systems to direct immune responses against antigens draining from peripheral tissues. The current paradigm describes LN development as a programmed process that is governed through the interaction between mesenchymal lymphoid tissue organizer (LTo) cells and hematopoietic lymphoid tissue inducer (LTi) cells. Using cell-type-specific ablation of key molecules involved in lymphoid organogenesis, we found that initiation of LN development is dependent on LTi-cell-mediated activation of lymphatic endothelial cells (LECs) and that engagement of mesenchymal stromal cells is a succeeding event. LEC activation was mediated mainly by signaling through receptor activator of NF-κB (RANK) and the non-canonical NF-κB pathway and was steered by sphingosine-1-phosphate-receptor-dependent retention of LTi cells in the LN anlage. Finally, the finding that pharmacologically enforced interaction between LTi cells and LECs promotes ectopic LN formation underscores the central LTo function of LECs.},
keywords = {Animals, Cell Differentiation, Cells, Choristoma, Cultured, Embryo, Endothelial Cells, fibroblastic reticular cells, Inbred C57BL, lymph node organogenesis, Lymph Nodes, lymphatic and blood endothelial cells, lymphoid stromal cells, lymphoid tissue organizer cells, Lymphotoxin beta Receptor, Lysosphingolipid, Mammalian, Mesenchymal Stem Cells, mesenchymal stromal cells, Mice, NF-kappa B, Organogenesis, Receptor Activator of Nuclear Factor-kappa B, Receptors, Signal Transduction, Team-Mueller, transgenic},
pubstate = {published},
tppubtype = {article}
}