OBJECTIVES: I. Determine the tolerability of interleukin-11 (IL-11) with filgrastim (G-CSF) in patients with non-Hodgkin's lymphoma, Hodgkin's disease, breast cancer, or other solid tumors. II. Evaluate the ability to collect CD34 cells and the number of apheresis collections required to reach the target number of CD34 cells in this patient population. III. Evaluate the time to recovery of platelets and neutrophils and the number of platelet and red blood cell transfusions required following IL-11 and G-CSF mobilized peripheral blood stem cell infusion in these patients.