Furthermore, the authors have completely ignored the technological evolution of influenza vaccines during the study period (such as techniques for determining the antigen dose, introduction of national and international quality control, etc).
We demonstrate that GM-CSF-releasing mPEG PLGA hydrogels successfully recruit and house DCs and macrophages, allowing the subsequent introduction of antigens by vectors to activate the resident cells, thus, initiating antigen presentation and triggering immune response.
Systemic introduction of synthetic TLR agonists poly(I C), imiquimod, and CpG also facilitated glioma antigen presentation.
Type IV reactions not only develop slowly reactions appear about 18 to 24 hours after introduction of antigen to the system but, depending on whether the antigen persists or is removed, they can be prolonged or relatively transient.
Topical immunization (TI), introduction of antigen through topical application onto the intact skin, has many practical merits compared to injectable routes of administration.
Numerous studies have shown that chondrocytes also have tissue-specific antigens, which induce the introduction of antibodies in patients with cartilage grafts, as well as those with osteoarthritis (OA) [1].
T cells using CIRs to target cellular antigens depend on the introduction of a gene encoding the receptor into the T cell.
This is based on the fact that neutrophils are essential first line defense of the body against infections or introduction of antigens and neutropenia (decrease in neutrophils) makes an individual highly susceptible to infections [ 35].
Introduction of antigen-specific receptors into such cells could yield populations of 'universal T cells' that are suitable for infusion (following conditioning) into multiple HLA disparate recipients without the risk of GVHD (Torikai et al, 2012).
Exhaustion, anergy or deletion of reactive T cells has also been reported after repetitive injections of high doses of peptide i.p. [ 40], after a single low dose of peptide s.c. [ 41] or after introduction of antigens to immature dendritic cells through the endocytic receptor DEC-205 in mice [ 42].
