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.
Let this boil for 15 minutes. Let cool on a cutting board until the artichokes return to room temperature. They will keep a year. Refrigerate after opening. More Pickle Recipes. 1  40-50 baby artichokes. 2  1 cup lemon juice. 3  2 cups white vinegar. 4  1 cup olive oil.ith a slotted spoon, fill the Mason jars 3/4 full with the artichokes. Ladle the vinegar-oil mixture over the chokes evenly. If you run out of sauce, you can add a little vinegar and oil to top off. Make sure the rims of the jars are clean and dry, and that you are using brand-new lids. Close the jars.