Bortezomib in Treating Patients With Mantle Cell Lymphoma

DISEASE CHARACTERISTICS: * Histologically or cytologically confirmed relapsed or untreated mantle cell lymphoma * No refractory disease defined as progression while on chemotherapy or within 1 month after completion of chemotherapy * At least 1 bidimensionally measurable disease site\* * Lymph nodes at least 1.5 cm by 1.5 cm by spiral CT scan OR * Non-nodal lesions (e.g., skin lesion or nodules) at least 1 cm by 1 cm by MRI, CT scan, or physical exam NOTE: \*Bone lesions are not considered bidimensionally measurable disease * No pre-existing ascites or pleural effusion * No known CNS involvement by lymphoma PATIENT CHARACTERISTICS: Age: * 18 and over Performance status: * ECOG 0-2 Life expectancy: * At least 12 weeks Hematopoietic: * Absolute granulocyte count at least 1,500/mm\^3 * Platelet count at least 75,000/mm\^3 Hepatic: * Bilirubin no greater than 1.5 times upper limit of normal (ULN) * AST or ALT no greater than 2.5 times ULN Renal: * Creatinine no greater than 1.5 times ULN Cardiovascular * LVEF at least 45% by echocardiogram or MUGA Pulmonary * No pre-existing shortness of breath greater than grade 1 Other: * No uncontrolled bacterial, fungal, or viral infections * No pre-existing edema greater than grade 1 * No pre-existing neuropathy greater than grade 1 * No other malignancy within the past 5 years except adequately treated nonmelanoma skin cancer or carcinoma in situ of the cervix * No other serious illness or medical condition that …