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Phosphane Functionalized Diblock Copolymers for Targeted siRNA Delivery

Award Information

Agency:
Department of Health and Human Services
Branch:
N/A
Award ID:
89152
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
GM079892
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Innovative Surface Technologies, Inc.
1000 Westgate Drive St. Paul, MN 55114-8612
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2008
Title: Phosphane Functionalized Diblock Copolymers for Targeted siRNA Delivery
Agency: HHS
Contract: 1R43GM079892-01A1
Award Amount: $99,857.00
 

Abstract:

DESCRIPTION (provided by applicant): This SBIR project is designed to develop a new non-viral carrier for target-specific delivery of small interfering RNA (siRNA). One of the major challenges in transforming siRNA from laboratory reagents to therapeutics is developing a target-specific delivery system to introduce siRNAs into target cells. Maximal therapeutic benefit with decrease in the required drug dose and avoidance of nonspecific silencing and toxicity in nontarget cells could thereby be achieved. Thi s proposal describes a new diblock copolymer with a positively charged block to complex with siRNA, a poly(ethyleneoxide) block for protection against non-specific adsorption, and a phosphane group on the PEG end for targeting ligand conjugation through St audinger ligation. The Phase II work is expected to investigate the safety and efficacy of this novel siRNA delivery system in an animal model for therapeutic application. Specific aims of this Phase I proposal include: 1) optimize the synthesis of special diblock copolymers; 2) conjugate targeting ligands to diblock copolymers; 3) develop the methodology for preparing siRNA/polymer nanoparticles; 4) evaluate cytotoxicity of the new siRNA delivery system; 5) demonstrate inhibition of gene expression; and 6) investigate intracellular trafficking.

Principal Investigator:

Patrick E. Guire
6512099757
PGUIRE@ISURTEC.COM

Business Contact:


wvandervort@isurtec.com
Small Business Information at Submission:

INNOVATIVE SURFACE TECHNOLOGIES, LLC
INNOVATIVE SURFACE TECHNOLOGIES, LLC 1000 WESTGATE DR, STE 115 ST. PAUL, MN 55114

EIN/Tax ID: 201720561
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No