In this chapter, we reflect on our early understanding of the immunogenic properties of dsDNA and give a chronological account of the journey we have taken to discover the individual cellular DNA sensors which have played important roles in mediating DNA induced inflammation.
Ideal vaccines are expected to give lifetime protection from infectious diseases, and if possible, from allergic diseases, autoimmune diseases and cancer. DNA vaccination was introduced two decades ago as a simple plasmid inoculation method with a capability of inducing both cellular and humoral immune responses. Recent studies have provided insights into the molecular mechanisms by which the double-stranded structure of DNA vaccine induces the activation of type-I interferon (IFN)-mediated innate immune responses via STING/TBK1 complex, similar to cytosolic double stranded DNA (dsDNA) recognition of immune cells. In this chapter, DNA vaccines and the current knowledge on their mechanism of action will be introduced. The possibilities of using this knowledge for improving immunogenicity of DNA vaccines in humans will then be discussed.
The testing of unsaturated soils requires greater care and effort than that of saturated soils. Although unsaturated soil mechanics has been embraced by geotechnical engineering, engineering practice has not yet caught up as the characterization of unsaturated soils is difficult and time-consuming, and made harder still by a lack of standards. Laboratory Tests for Unsaturated Soils collates test procedures to cover all laboratory tests for characterising unsaturated soils. It covers the background, theory, test procedures, and interpretation of test results. Each test procedure is broken down into simple stages and described in detail. The pitfalls of each test and the interpretation of the test results are explained. Test data and calculation methods are given, along with many numerical examples to illustrate the methods of interpretation and to offer the presentation of typical results. The book is especially useful for students and researchers who are new to the field and provides a practical handbook for engineering applications.
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