Compositions and methods for plasmapheresis

A method for using plasmapheresis to increase or decrease a level of expression of a cell surface marker on a surface of a white blood cell of an individual, comprising the steps of:

• (a) measuring, before an administration of the plasmapheresis, the level of expression of the cell surface marker on the surface of the white blood cell of the individual;
• (b) administering the plasmapheresis to the individual, comprising replacing at least one plasma volume of the individual with an exchange fluid;
• and
• (c) measuring, following step (b), the level of expression of the cell surface marker on the surface of the white blood cell of the individual and determining that the level of expression of the cell surface marker on the surface of the white blood cell of the individual has increased or decreased.