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Title: Main chain acid-degradable polymers for the delivery of bioactive materials

Patent ·
OSTI ID:1039708

Novel main chain acid degradable polymer backbones and drug delivery systems comprised of materials capable of delivering bioactive materials to cells for use as vaccines or other therapeutic agents are described. The polymers are synthesized using monomers that contain acid-degradable linkages cleavable under mild acidic conditions. The main chain of the resulting polymers readily degrade into many small molecules at low pH, but remain relatively stable and intact at physiological pH. The new materials have the common characteristic of being able to degrade by acid hydrolysis under conditions commonly found within the endosomal or lysosomal compartments of cells thereby releasing their payload within the cell. The materials can also be used for the delivery of therapeutics to the acidic regions of tumors and other sites of inflammation.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
8,137,700
Application Number:
12/299,506
OSTI ID:
1039708
Country of Publication:
United States
Language:
English

References (3)

Acid-Degradable Particles for Protein-Based Vaccines:  Enhanced Survival Rate for Tumor-Challenged Mice Using Ovalbumin Model journal November 2004
A Novel Strategy for Encapsulation and Release of Proteins:  Hydrogels and Microgels with Acid-Labile Acetal Cross-Linkers journal October 2002
Enhanced antigen presentation and immunostimulation of dendritic cells using acid-degradable cationic nanoparticles journal July 2005

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