A method for treating a condition associated with metabolic syndrome or for treating adiposis dolorosa (AD) comprises applying peripheral blood from a patient or subject to an apheresis column loaded with a solid support comprising one or more binding reagents capable of specifically binding to a chemokine receptor, optionally the chemokine receptor CCR2, CCR1, CCR3, CCR4 or CCR5 immobilized directly or indirectly on the support thus removing one or more chemokine receptor, optionally CCR2, CCR1, CCR3, CCR4 and CCR5 expressing cells from the peripheral blood of the patient or subject. Various companion diagnostic methods and useful binding reagents are also described.