They are essential in B cell antibody class switching, in the activation and growth of cytotoxic T cells, and in maximizing bactericidal activity of phagocytes such as macrophages. Mature T h cells express the surface protein CD4 and are referred to as CD4+ T cells.Such CD4 + T cells are generally treated as having a pre-defined role as helper T cells within the immune system.hey are essential in B cell antibody class switching, in the activation and growth of cytotoxic T cells, and in maximizing bactericidal activity of phagocytes such as macrophages. Mature T h cells express the surface protein CD4 and are referred to as CD4+ T cells.
To boil artichokes: 1  Fill a large stainless-steel or enameled pot with lightly salted water; bring to boiling. 2  Add artichokes and return water to boiling. 3  Reduce heat; simmer, covered, for about 20 to 30 minutes or until you can easily pull out a leaf from the center of an artichoke.
Using a rinsed and trimmed Long-Stem Artichoke, simply trim the bottom of the stem about a half of an inch. Peel the long stem of the Artichoke with a vegetable peeler until you reach the pale green flesh inside. Then, choose one of the many standard ways to cook Artichokes.You can also cut the stem into pieces or bite-size coins and can cook them the same way you would cook with Artichoke Hearts.or more âbang for your buck,â opt to purchase an Ocean Mist Farmsâ fresh, âLong-Stemâ Artichoke. Donât be intimidated by these unique vegetables. Long-Stem Artichokes can be used the same way a regular Artichoke can, but provide an additional eight to 10 inches of stem that is an extension of the Heart inside.