Abstract
Drug-free macromolecular therapeutics (DFMT) is a new paradigm for the treatment of B cell malignancies. Apoptosis is initiated by the biorecognition of complementary oligonucleotide motifs at the cell surface resulting in crosslinking of CD20 receptors. DMFT is composed from two nanoconjugates: 1) bispecific engager, Fab’-MORF1 (anti-CD20 Fab’ fragment conjugated with morpholino oligonucleotide), and 2) a crosslinking (effector) component P-(MORF2) X (N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer grafted with multiple copies of complementary morpholino oligonucleotide). We evaluated this concept in 44 samples isolated from patients diagnosed with various subtypes of B cell malignancies. Apoptosis was observed in 65.9% of the samples tested. Pretreatment of cells with gemcitabine (GEM) or polymer-gemcitabine conjugate (2P-GEM) enhanced CD20 expression levels thus increasing apoptosis induced by DFMT. These positive results demonstrated that DFMT has remarkable therapeutic potential in various subtypes of B cell malignancies.
Original language | English |
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Pages (from-to) | 217-225 |
Number of pages | 9 |
Journal | Nanomedicine: Nanotechnology, Biology, and Medicine |
Volume | 16 |
DOIs | |
State | Published - Feb 2019 |
Externally published | Yes |
Funding
Acknowledgments: The work was supported in part by NIH grant RO1 GM95606 (to JK) from the National Institute of General Medical Sciences , Huntsman Cancer Institute (award No. 180303 ), and the University of Utah Research Foundation . We acknowledge support of funds from grant P30 CS042014 awarded to Huntsman Cancer Institute and to the ET Program at Huntsman Cancer Institute.
Funders | Funder number |
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University of Utah Research Foundation | P30 CS042014 |
National Institutes of Health | |
National Institute of General Medical Sciences | R01GM095606 |
Huntsman Cancer Institute | 180303 |
Keywords
- Apoptosis
- B cell lymphoma
- CD20
- Drug-free macromolecular therapeutics
- Nanomedicine