Saturday, September 26, 2009

The Immune Response Enhanced by Beta-1,3D Glucan - pg.1

The Immune Response Enhanced by Beta-1,3D Glucan by A.J.Lanigan - pg.1

The immune response begins when invaders like viruses enter the body. White blood cells, called macrophages, encounter the invader and consume it. The macrophage does not care what the invader might be. It only knows self or non-self. Meanwhile, other viruses look for nearby cells to infect. Beta-1,3D Glucan, an extract from the cell wall of a baker's yeast, turns the "Woody Allen cells" into "Schwartzenagger cells." This allows your immune system to be "all that it can be". Beta-1,3D Glucan modulates and potentiates the macrophage and keeps it in a more prepared state. With this balancing effect, all subsequent immune response improves. The beta glucan and the macrophages are oblivious to the type of invader or the health of the host. Again, the macrophage only knows self vs. non-self. The glucan treated host will enjoy an increase in its arsenal against unwanted offenders.

Next, the macrophage digests the virus and displays pieces of the virus (antigens) on its surface. Antigens may be any substance introduced into the body that the immune system recognizes as non-self. Nearby cells may become infected by the attacking viruses. In a healthy immune system, these infected cells will come under attack, be destroyed, and be removed before they can be used to spread the illness.

Unique among the different helper T cells (another class of white blood cells) in the body, one particular helper T cell now recognizes the antigen displayed and binds to the macrophage. There are at least two subsets of the helper T cells, the Th1 and the Th2. They make the decisions as to what type response will be ordered. Up and down regulatory factors transmitted by this pair of cells (macrophage + T helper) provide many variations for dealing with the invaders.

This union stimulates the production of chemical substances - such as interleukin-1 (IL-1) and tumor necrosis factor (TNF) by the macrophage, and interleukin-2 (IL-2) and gamma interferon (IFN-y) by the T cell - that allow intercellulor communication. Theses cytokines/lymphokins (fax messages) are required for T cell activation and response. Mere activation is not enough. The Antigen Presenting Cell (APC), depending on the type (MHC I or II) of presentation gives co-stimulation (a second go-ahead signal). CD28 (blood test) reflects this co-stimulation and activation process. - source