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

scholarly journals Influence of Epinastine Hydrochloride, an -Receptor Antagonist, on the Function of Mite Allergen-Pulsed Murine Bone Marrow-Derived Dendritic Cells In Vitro and In Vivo

2009 ◽  
Vol 2009 ◽  
pp. 1-8 ◽  
Author(s):  
Ken-Zaburo Oshima ◽  
Kazuhito Asano ◽  
Ken-Ichi Kanai ◽  
Miyuki Suzuki ◽  
Harumi Suzaki
Keyword(s):  
Bone Marrow ◽  
Dendritic Cells ◽  
Immune Responses ◽  
Clinical Status ◽  
Mouse Bone Marrow ◽  
Dc Functions ◽  
Receptor Antagonists ◽  
Murine Bone Marrow

There is established concept that dendritic cells (DCs) play essential roles in the development of allergic immune responses. However, the influence of receptor antagonists on DC functions is not well defined. The aim of the present study was to examine the effect of epinastine hydrochloride (EP), the most notable histamine receptor antagonists in Japan, onDermatophagoides farinae (Der f)-pulsed mouse bone marrow-derived DCs in vitro and in vivo. EP at more than 25 ng/mL could significantly inhibit the production of IL-6, TNF- and IL-10 fromDer f-pulsed DCs, which was increased byDer fchallenge in vitro. On the other hand, EP increased the ability ofDer f-pulsed DCs to produce IL-12. Intranasal instillation ofDer f-pulsed DCs resulted in nasal eosinophilia associated with a significant increase in IL-5 levels in nasal lavage fluids.Der f-pulsed and EP-treated DCs significantly inhibited nasal eosinophila and reduced IL-5. These results indicate that EP inhibits the development of Th2 immune responses through the modulation of DC functions and results in favorable modification of clinical status of allergic diseases.

Natural Interferon Producing Cells Develop from Murine CD31+(high)/Ly6C- Marrow Progenitors.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 4169-4169
Author(s):  
Friederike Kreisel ◽  
Amanda Blasius ◽  
Marco Colonna ◽  
Marina Cella
Keyword(s):  
Bone Marrow ◽  
Dendritic Cells ◽  
Critical Role ◽  
Surface Expression ◽  
Specific Marker ◽  
Murine Bone Marrow ◽  
Gm Csf ◽  
Ifn Alpha ◽  
Total Bone Marrow

Abstract Dendritic cells (DC) play a critical role in the initiation and regulation of immune responses. Based on immunophenotypic and functional charcateristics, murine CD11c+ DC can be classified into CD11c+, CD11b+, and B220− “conventional” DC and CD11c+, CD11b−/dim, B220+, and Gr-1+ interferon-producing cells (IPC) or plasmacytoid dendritic cells (pDC). The developmental origin of IPC remains controversial. In this study, we investigated the capacity of different murine bone marrow subpopulations to acquire immunophenotypic, morphologic and functional characteristics of IPC after in vitro culture with Flt-3L. Total bone marrow (BM) from 129/SvJ mice was sorted into six distinct BM subsets based on surface expression of the myeloid markers CD31 and Ly6C and subsequently cultured with Flt-3L for 8 days. Purified CD31high/Ly6C− BM cells were the only subset that consistently developed characteristics closely resembling that of IPC. Specifically, these cells expressed high levels of CD11c, low levels of CD11b, the lymphoid marker B220, and the IPC-specific marker 440C. Furthermore, these cells displayed the typical plasmacytoid morphology with eccentrically located nucleus showing mature lymphoid chromatin and lack of nucleoli. Functionally, these cells showed a high proliferation rate as demonstrated by the [3H] thymidine release assay and secreted detectable levels of IFN-alpha when stimulated with CPG ODN 2216. In contrast, all other sorted subsets failed to proliferate in the presence of Flt-3L. Similar results were obtained using BM from B6-RAG−/− mice. These findings indicate that, although both the CD31high/Ly6C− and CD31int/Ly6C− BM subsets contain early progenitor cells corresponding to “cobblestone area forming cells”, only the CD31high/Ly6C− is able to give rise to IPC when cultured with Flt-3L. Interestingly, CD31high/Ly6C− BM cells have been previously shown to generate also conventional DC if cultured with GM-CSF. Thus, IPC and DC may derive from common or closely related progenitors. Moreover, our results demonstrate that IPC development, in contrast to that of lymphocytes, does not require RAG proteins.

scholarly journals Fate of Mycobacterium tuberculosis within Murine Dendritic Cells

2001 ◽  
Vol 69 (2) ◽  
pp. 800-809 ◽  
Author(s):  
Kendra A. Bodnar ◽  
Natalya V. Serbina ◽  
JoAnne L. Flynn
Keyword(s):  
Nitric Oxide ◽  
Bone Marrow ◽  
Immune Response ◽  
Dendritic Cells ◽  
Mycobacterium Tuberculosis ◽  
Immune Responses ◽  
Intracellular Bacteria ◽  
Murine Bone Marrow ◽  
Oxide Synthase

ABSTRACT The interaction of microbes with dendritic cells (DCs) is likely to have an enormous impact on the initiation of the immune response against a pathogen. In this study, we compared the interaction ofMycobacterium tuberculosis with murine bone marrow-derived DCs and macrophages (Mφ) in vitro. M. tuberculosis grew equally well within nonactivated DCs and Mφ. Activation of DCs and Mφ with gamma interferon and lipopolysaccharide inhibited the growth of the intracellular bacteria in a nitric oxide synthase-dependent fashion. However, while this activation enabled Mφ to kill the intracellular bacteria, the M. tuberculosis bacilli within activated DCs were not killed. Thus, DCs could restrict the growth of the intracellular mycobacteria but were less efficient than Mφ at eliminating the infection. These results may have implications for priming immune responses to M. tuberculosis. In addition, they suggest that DCs may serve as a reservoir for M. tuberculosis in tissues, including the lymph nodes and lungs.

scholarly journals The maturation of murine bone marrow-derived dendritic cells by tumor lysate uptake in vitro is not essential for cancer immunotherapy

2005 ◽  
Vol 4 (12) ◽  
pp. 1331-1335 ◽  
Author(s):  
Sung-Chil Woo ◽  
Gi-Young Kim ◽  
Chang-Min Lee ◽  
Dong-Oh Moon ◽  
Tae-Hyung Lee ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Dendritic Cells ◽  
Cancer Immunotherapy ◽  
Tumor Lysate ◽  
Murine Bone Marrow

Expression of human adenosine deaminase in murine hematopoietic cells

1988 ◽  
Vol 8 (12) ◽  
pp. 5116-5125
Author(s):  
J W Belmont ◽  
G R MacGregor ◽  
K Wager-Smith ◽  
F A Fletcher ◽  
K A Moore ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Adenosine Deaminase ◽  
High Titer ◽  
Virus Production ◽  
Marrow Transplant ◽  
Mouse Bone Marrow ◽  
Regulation Of Expression ◽  
Murine Bone Marrow

Multiple replication-defective retrovirus vectors were tested for their ability to transfer and express human adenosine deaminase in vitro and in vivo in a mouse bone marrow transplantation model. High-titer virus production was obtained from vectors by using both a retrovirus long terminal repeat promoter and internal transcriptional units with human c-fos and herpes virus thymidine kinase promoters. After infection of primary murine bone marrow with one of these vectors, human adenosine deaminase was detected in 60 to 85% of spleen colony-forming units and in the blood of 14 of 14 syngeneic marrow transplant recipients. This system offers the opportunity to assess methods for increasing efficiency of gene transfer, for regulation of expression of foreign genes in hematopoietic progenitors, and for long-term measurement of the stability of expression in these cells.

Synergism of v-myc and v-Ha-ras in the in vitro neoplastic progression of murine lymphoid cells

1986 ◽  
Vol 6 (9) ◽  
pp. 3221-3231
Author(s):  
R C Schwartz ◽  
L W Stanton ◽  
S C Riley ◽  
K B Marcu ◽  
O N Witte
Keyword(s):  
Bone Marrow ◽  
Cell Lines ◽  
Retroviral Vectors ◽  
Soft Agar ◽  
Lymphoid Cells ◽  
Neoplastic Progression ◽  
Direct Role ◽  
Murine Bone Marrow ◽  
Myc Oncogene

Murine bone marrow was either singly or doubly infected with retroviral vectors expressing v-myc (OK10) or v-Ha-ras. The infected bone marrow was cultured in a system that supports the long-term growth of B-lineage lymphoid cells. While the v-myc vector by itself had no apparent effect on lymphoid culture establishment and growth, infection with the v-Ha-ras vector or coinfection with both v-myc and v-Ha-ras vectors led to the appearance of growth-stimulated cell populations. Clonal pre-B-cell lines stably expressing v-Ha-ras alone or both v-myc and v-Ha-ras grew out of these cultures. In comparison with cell lines expressing v-Ha-ras alone, cell lines expressing both v-myc and v-Ha-ras grew to higher densities, had reduced dependence on a feeder layer for growth, and had a marked increase in ability to grow in soft-agar medium. The cell lines expressing both oncogenes were highly tumorigenic in syngeneic animals. These experiments show that the v-myc oncogene in synergy with v-Ha-ras can play a direct role in the in vitro transformation of murine B lymphoid cells.

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