Track topics on Twitter Track topics that are important to you
Abstract To induce humoral- and cell-mediated immune responses in protein-based vaccinations, immunoadjuvants are needed. In this study, we investigated the immunoadjuvant effect of N-carboxymethyl chitosan (N-CMCh) on the vaccination system through dendritic cell activation. The results showed that N-CMCh nanoparticle enhanced the secretion of cytokines (interleukin [IL]-6, IL-12p70, and tumor necrosis factor-α) and antigen uptake in bone marrow-derived dendritic cells. This activated antigen-specific Th1 cell responses, including IL-2 and interferon-gamma production and proliferation. In addition, N-CMCh delayed the dissemination of ovalbumin (OVA) from an injection site in female C57BL/6 mice. As a result, in the subcutaneous vaccination, OVA-N-CMCh nanoparticles enhanced both humoral and cell-mediated vaccine responses.
1 Department of Biology, Sunchon National University , Suncheon, Korea.
This article was published in the following journal.
Name: Journal of medicinal food
Chitosan and its derivatives have attracted great attention due to their properties beneficial for application to wound healing. The main focus of the present review is to summarize studies involving ...
Lymphodepletion is currently used to enhance the efficacy of cytotoxic T lymphocyte adoptive transfer immunotherapy against cancer. This beneficial effect of conditioning regimens is due, at least in ...
Hepatitis C virus (HCV) infection is a major health problem worldwide. Defective dendritic cell (DC) activation of T cells may underlie poor T-cell responsiveness in HCV infection.
Inhibitors of VEGF receptor (VEGFR) signaling such as sorafenib and sunitinib that are currently used in the treatment of malignant diseases have been shown to affect immunological responses by inhibi...
The purpose of the study is to gather data on feasibility and on immune and clinical efficacy of intratumoral dendritic cell (DC) vaccination in combination with local radiotherapy in pati...
Chitosan is a natural product that is produced commercially through the deacetylation of chitin, which is found in the exoskeleton of crustaceans. It has been suggested that chitosan has a...
RATIONALE: Vaccines made from a patient's white blood cells (dendritic cells) and a specific leukemia antigen (Wilms tumor antigen-1) may induce an effective immune response to kill residu...
The purpose of this study is to test a novel dendritic cell (DC) vaccine in patients with Stage IV melanoma.
The purpose of this study is to show if vaccination with autologous dendritic cells pulsed with peptides or tumor lysate in combination with adjuvant cytokines can induce a measurable immu...
Recirculating, dendritic, antigen-presenting cells containing characteristic racket-shaped granules (Birbeck granules). They are found principally in the stratum spinosum of the EPIDERMIS and are rich in Class II MAJOR HISTOCOMPATIBILITY COMPLEX molecules. Langerhans cells were the first dendritic cell to be described and have been a model of study for other dendritic cells (DCs), especially other migrating DCs such as dermal DCs and INTERSTITIAL DENDRITIC CELLS.
Non-hematopoietic cells, with extensive dendritic processes, found in the primary and secondary follicles of lymphoid tissue (the B cell zones). They are different from conventional DENDRITIC CELLS associated with T-CELLS. They are derived from MESENCHYMAL STEM CELLS and are negative for class II MHC antigen and do not process or present antigen like the conventional dendritic cells do. Instead, follicular dendritic cells have FC RECEPTORS and C3B RECEPTORS that hold antigen in the form of ANTIGEN-ANTIBODY COMPLEXES on their surfaces for long periods for recognition by B-CELLS.
Rare malignant neoplasm of dendritic LANGERHANS CELLS exhibiting atypical cytology, frequent mitoses, and aggressive clinical behavior. They can be distinguished from other histiocytic and dendritic proliferations by immunohistochemical and ultrastructure studies. Cytologically benign proliferations of Langerhans cells are called LANGERHANS CELL HISTIOCYTOSIS.
Sarcoma of FOLLICULAR DENDRITIC CELLS most often found in the lymph nodes. This rare neoplasm occurs predominately in adults.
Peptidoglycan immunoadjuvant originally isolated from bacterial cell wall fragments; also acts as pyrogen and may cause arthritis; stimulates both humoral and cellular immunity.
A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism, and is often made from weakened or killed forms of the microbe, its toxins or one ...