Details

Autor(en) / Beteiligte

• YICHENG MAO
• TRIANTAFILLOU, Georgia
• GOLDENBERG, David M
• LEE, Robert J
• BYRD, John C
• MUTHUSAMY, Natarajan
• HERTLEIN, Erin
• TOWNS, William
• STEFANOVSKI, Matthew
• XIAOKUI MO
• JARJOURA, David
• PHELPS, Mitch
• MARCUCCI, Guido
• JAMES LEE, Ly

Titel

Milatuzumab-Conjugated Liposomes as Targeted Dexamethasone Carriers for Therapeutic Delivery in CD74+ B-cell Malignancies

Ist Teil von

• Clinical cancer research, 2013-01, Vol.19 (2), p.347-356

Ort / Verlag

Philadelphia, PA: American Association for Cancer Research

Erscheinungsjahr

2013

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• Corticosteroids are widely used for the treatment of B-cell malignancies, including non-Hodgkin lymphoma, chronic lymphocytic leukemia (CLL), and acute lymphoblastic leukemia; however, this class of drug is associated with undesirable off-target effects. Herein, we developed novel milatuzumab-conjugated liposomes as a targeted dexamethasone carrier for therapeutic delivery in CD74(+) B-cell malignancies and explored its effect against the disease. The targeting efficiency of milatuzumab-targeted liposomes to CD74(+) cells was evaluated in vitro. The effect of CD74-targeted liposomal dexamethasone was compared with free dexamethasone in primary CLL cells and cell lines in vitro. The therapeutic efficacy of CD74-targeted liposomal dexamethasone was evaluated in a Raji-severe combined immunodeficient (SCID) xenograft model in vivo. Milatuzumab-targeted liposomes promoted selective incorporation of carrier molecules into transformed CD74-positive B cells as compared with CD74-negative T-cells. The CD74-dexamethasone-targeted liposomes (CD74-IL-DEX) promoted and increased killing in CD74-positive tumor cells and primary CLL cells. Furthermore, the targeted drug liposomes showed enhanced therapeutic efficacy against a CD74-positive B-cell model as compared with free, or non-targeted, liposomal dexamethasone in SCID mice engrafted with Raji cells in vivo. These studies provide evidence and support for a potential use of CD74-targeted liposomal dexamethasone as a new therapy for B-cell malignancies.