scholarly journals Low Noncytotoxic Concentrations of 5-Fluorouracil Have No Adverse Effects on Maturation and Function of Bone Marrow-Derived Dendritic Cells in vitro: A Potentially Safe Adjuvant for Dendritic Cell-Based Cancer Therapy

2015 ◽  
Vol 168 (2) ◽  
pp. 122-130 ◽  
Author(s):  
Afshin Namdar ◽  
Hamid Reza Mirzaei ◽  
Morteza Hafezi ◽  
Najmeh Khosravianfar ◽  
Nasim Kheshtchin ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dendritic Cells ◽  
Dendritic Cell ◽  
Cancer Therapy ◽  
Adverse Effects ◽  
And Function

scholarly journals Burst of Corneal Dendritic Cells during Trastuzumab and Paclitaxel Treatment

Diagnostics ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 838
Author(s):  
Katharina A. Sterenczak ◽  
Nadine Stache ◽  
Sebastian Bohn ◽  
Stephan Allgeier ◽  
Bernd Köhler ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Dendritic Cells ◽  
Cancer Therapy ◽  
Adverse Effects ◽  
Laser Scanning Microscopy ◽  
Sensory Nerves ◽  
Confocal Laser ◽  
Corneal Nerves ◽  
Over Time

During breast cancer therapy, paclitaxel and trastuzumab are both associated with adverse effects such as chemotherapy-induced peripheral neuropathy and other systemic side effects including ocular complications. Corneal nerves are considered part of the peripheral nervous system and can be imaged non-invasively by confocal laser scanning microscopy (CLSM) on the cellular level. Thus, in vivo CLSM imaging of structures of the corneal subbasal nerve plexus (SNP) such as sensory nerves or dendritic cells (DCs) can be a powerful tool for the assessment of corneal complications during cancer treatment. During the present study, the SNP of a breast cancer patient was analyzed over time by using large-scale in vivo CLSM in the course of paclitaxel and trastuzumab therapy. The same corneal regions could be re-identified over time. While the subbasal nerve morphology did not alter significantly, a change in dendritic cell density and an additional local burst within the first 11 weeks of therapy was detected, indicating treatment-mediated corneal inflammatory processes. Ocular structures such as nerves and dendritic cells could represent useful biomarkers for the assessment of ocular adverse effects during cancer therapy and their management, leading to a better visual prognosis.

scholarly journals Langerhans' cells, veiled cells, and interdigitating cells in the mouse recognized by a monoclonal antibody.

1986 ◽  
Vol 163 (4) ◽  
pp. 981-997 ◽  
Author(s):  
G Kraal ◽  
M Breel ◽  
M Janse ◽  
G Bruin
Keyword(s):  
Monoclonal Antibody ◽  
Bone Marrow ◽  
Dendritic Cells ◽  
Dendritic Cell ◽  
Langerhans Cells ◽  
Precursor Cells ◽  
Peritoneal Exudate ◽  
Peritoneal Exudate Cells ◽  
Interdigitating Cells

An mAb, NLDC-145, is described that specifically reacts with a group of nonlymphoid dendritic cells including Langerhans cells (LC), veiled cells (VC), and interdigitating cells (IDC). The antibody does not react with precursor cells in bone marrow and blood. Macrophages are not stained by the antibody, but a subpopulation of Ia+ peritoneal exudate cells is recognized. Possible relationships of the various nonlymphoid dendritic cell (NLDC) types are discussed.

Human follicular dendritic cells in vitro and follicular dendritic-cell-like cells

1997 ◽  
Vol 288 (2) ◽  
pp. 381-389 ◽  
Author(s):  
Rikiya Tsunoda ◽  
Alain Bosseloir ◽  
Kikuo Onozaki ◽  
Ernst Heinen ◽  
Katsuya Miyake ◽  
...  
Keyword(s):  
Dendritic Cells ◽  
Dendritic Cell ◽  
Follicular Dendritic Cell ◽  
Follicular Dendritic Cells ◽  
Follicular Dendritic

Functional absence of neutral endopeptidase in mice promotes hapten uptake, maturation and function of bone marrow-derived dendritic cells

2008 ◽  
Vol 13 (9) ◽  
pp. 587-587
Author(s):  
T. E. Scholzen ◽  
M. Fastrich ◽  
T. Brzoska ◽  
C. A. Armstrong ◽  
J. C. Ansel ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dendritic Cells ◽  
Neutral Endopeptidase ◽  
And Function

scholarly journals Heme-stress activated NRF2 skews fate trajectories of bone marrow cells from dendritic cells towards red pulp-like macrophages in hemolytic anemia

2022 ◽  
Author(s):  
Florence Vallelian ◽  
Raphael M. Buzzi ◽  
Marc Pfefferlé ◽  
Ayla Yalamanoglu ◽  
Irina L. Dubach ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dendritic Cells ◽  
Dendritic Cell ◽  
Sickle Cell Disease ◽  
Bone Marrow Cells ◽  
Cell Disease ◽  
Secondary Immunodeficiency ◽  
Gm Csf ◽  
Bone Marrow Cultures ◽  
Marrow Cultures

AbstractHeme is an erythrocyte-derived toxin that drives disease progression in hemolytic anemias, such as sickle cell disease. During hemolysis, specialized bone marrow-derived macrophages with a high heme-metabolism capacity orchestrate disease adaptation by removing damaged erythrocytes and heme-protein complexes from the blood and supporting iron recycling for erythropoiesis. Since chronic heme-stress is noxious for macrophages, erythrophagocytes in the spleen are continuously replenished from bone marrow-derived progenitors. Here, we hypothesized that adaptation to heme stress progressively shifts differentiation trajectories of bone marrow progenitors to expand the capacity of heme-handling monocyte-derived macrophages at the expense of the homeostatic generation of dendritic cells, which emerge from shared myeloid precursors. This heme-induced redirection of differentiation trajectories may contribute to hemolysis-induced secondary immunodeficiency. We performed single-cell RNA-sequencing with directional RNA velocity analysis of GM-CSF-supplemented mouse bone marrow cultures to assess myeloid differentiation under heme stress. We found that heme-activated NRF2 signaling shifted the differentiation of bone marrow cells towards antioxidant, iron-recycling macrophages, suppressing the generation of dendritic cells in heme-exposed bone marrow cultures. Heme eliminated the capacity of GM-CSF-supplemented bone marrow cultures to activate antigen-specific CD4 T cells. The generation of functionally competent dendritic cells was restored by NRF2 loss. The heme-induced phenotype of macrophage expansion with concurrent dendritic cell depletion was reproduced in hemolytic mice with sickle cell disease and spherocytosis and associated with reduced dendritic cell functions in the spleen. Our data provide a novel mechanistic underpinning of hemolytic stress as a driver of hyposplenism-related secondary immunodeficiency.

scholarly journals The Effect of Influenza Vaccines on Maturation of Dendritic Cells Generated from Bone Marrow

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Kostinova AM ◽  
◽  
Yukhacheva DV ◽  
Akhmatova EA ◽  
Akhmatova NK ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dendritic Cells ◽  
Bone Marrow Cells ◽  
Human Bone ◽  
Influenza Vaccines ◽  
Human Bone Marrow ◽  
Vitro Model ◽  
Cytokine Stimulation ◽  
Marrow Cells

Background: Possibility to control immune system by regulating the activity of Dendritic Cells (DC) with the help of vaccines or other immunobiological drugs opens great prospects for infectious, oncological and autoimmune control. The aim of this study was to evaluate in vitro the effect of adjuvant subunit and non-adjuvant split influenza vaccines on maturation of DCs from human bone marrow. Methods: From bone marrow cells of healthy volunteers, DCs were obtained using rGM-CSF and IL-4. On the 8th day of cultivation, 10μl of vaccines against influenza were introduced into the culture of Immature DCs (i-DCs): a non-adjuvant split vaccine (Vaxigripp, Sanofi Pasteur) and an immunoadjuvant subunit vaccine (Grippol plus, Petrovax), as well as immunomodulator Polyoxidonium. Results: Insertion of influenza vaccines into i-DC culture induced the acquisition by DCs typical morphological signs of maturation. DCs became large with eccentrically located of irregular shape nucleus, densified cytoplasm, numerous processes. By immunophenotypic examination decrease in monocyte/macrophage pool, cells with expression of CD34 immaturity marker, increase in expressing CD11c/CD86 costimulatory molecules and CD83 terminal differentiation molecules were observed. Although Polyoxidonium caused a decrease in number of CD11c/CD14 cells (18, 5%), but compared to vaccines, its activity was lower (p<0, 05). Grippol plus more actively induced differentiation of TLR2 and TLR8 expressing cells, whereas Vaxigripp-expression of TLR4 and TLR8 on DCs. Conclusion: The possibility of using in vitro model of DCs obtained from human bone marrow cells by cytokine stimulation for examination of the ability of influenza vaccines to induce DC maturation processes has been demonstrated.

scholarly journals Inhibition of O-GlcNAc Transferase Alters the Differentiation and Maturation Process of Human Monocyte Derived Dendritic Cells

Cells ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 3312
Author(s):  
Matjaž Weiss ◽  
Marko Anderluh ◽  
Martina Gobec
Keyword(s):  
Dendritic Cells ◽  
Posttranslational Modification ◽  
Human Monocyte ◽  
T Cell Differentiation ◽  
Maturation Process ◽  
Hla Dr ◽  
Glcnac Transferase ◽  
And Function

The O-GlcNAcylation is a posttranslational modification of proteins regulated by O-GlcNAc transferase (OGT) and O-GlcNAcase. These enzymes regulate the development, proliferation and function of cells, including the immune cells. Herein, we focused on the role of O-GlcNAcylation in human monocyte derived dendritic cells (moDCs). Our study suggests that inhibition of OGT modulates AKT and MEK/ERK pathways in moDCs. Changes were also observed in the expression levels of relevant surface markers, where reduced expression of CD80 and DC-SIGN, and increased expression of CD14, CD86 and HLA-DR occurred. We also noticed decreased IL-10 and increased IL-6 production, along with diminished endocytotic capacity of the cells, indicating that inhibition of O-GlcNAcylation hampers the transition of monocytes into immature DCs. Furthermore, the inhibition of OGT altered the maturation process of immature moDCs, since a CD14medDC-SIGNlowHLA-DRmedCD80lowCD86high profile was noticed when OGT inhibitor, OSMI-1, was present. To evaluate DCs ability to influence T cell differentiation and polarization, we co-cultured these cells. Surprisingly, the observed phenotypic changes of mature moDCs generated in the presence of OSMI-1 led to an increased proliferation of allogeneic T cells, while their polarization was not affected. Taken together, we confirm that shifting the O-GlcNAcylation status due to OGT inhibition alters the differentiation and function of moDCs in in vitro conditions.

scholarly journals Water Extract of Cordyceps militaris Enhances Maturation of Murine Bone Marrow-Derived Dendritic Cells in Vitro

2006 ◽  
Vol 29 (2) ◽  
pp. 354-360 ◽  
Author(s):  
Gi-Young Kim ◽  
Woo-Shin Ko ◽  
Jae-Yoon Lee ◽  
Jeong-Ok Lee ◽  
Chung-Ho Ryu ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dendritic Cells ◽  
Water Extract ◽  
Cordyceps Militaris ◽  
Murine Bone Marrow
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