title: Bacteriophage Associated Silicon Particles: Design and Characterization of a Novel Theranostic Vector with Improved Payload Carrying Potential.
abstract: There has been extensive research on the use of nanovectors for cancer therapy. Targeted delivery of nanotherapeutics necessitates two important characteristics; the ability to accumulate at the disease locus after overcoming sequential biological barriers and the ability to carry a substantial therapeutic payload. Successful combination of the above two features is challenging, especially in solid porous materials where chemical conjugation of targeting entities on the particle surface will generally prevent successful loading of the therapeutic substance. In this study, we propose a novel strategy for decorating the surface of mesoporous silicon particles with targeting entities (bacteriophage) and gold nanoparticles (AuNP) while maintaining their payload carrying potential. The resulting Bacteriophage Associated Silicon Particles (BASP) demonstrates efficient encapsulation of macromolecules and therapeutic nanoparticles into the porous structures.In vitrotargeting data show enhanced targeting efficiency with about four orders of magnitude lower concentration of bacteriophage.In vivotargeting data suggest that BASP maintain their integrity following intravenous administration in mice and display up to three fold higher accumulation in the tumor.
authors.affiliation: The Methodist Hospital Research Institute, Houston, Texas, USA.
authors.forename: Srimeenakshi
authors.initials: S
authors.lastname: Srinivasan
authors.affiliation: The Methodist Hospital Research Institute, Houston, Texas, USA.
authors.forename: Jenolyn F
authors.initials: JF
authors.lastname: Alexander
authors.affiliation: The University of Texas MD Anderson Cancer Center, David H. Koch Center, Houston, Texas, USA.
authors.forename: Wouter H
authors.initials: WH
authors.lastname: Driessen
authors.affiliation: The Methodist Hospital Research Institute, Houston, Texas, USA.
authors.forename: Fransisca
authors.initials: F
authors.lastname: Leonard
authors.affiliation: The Methodist Hospital Research Institute, Houston, Texas, USA.
authors.forename: Hu
authors.initials: H
authors.lastname: Ye
authors.affiliation: The Methodist Hospital Research Institute, Houston, Texas, USA.
authors.forename: Xuewu
authors.initials: X
authors.lastname: Liu
authors.affiliation: The University of Texas MD Anderson Cancer Center, David H. Koch Center, Houston, Texas, USA.
authors.forename: Wadih
authors.initials: W
authors.lastname: Arap
authors.affiliation: The University of Texas MD Anderson Cancer Center, David H. Koch Center, Houston, Texas, USA.
authors.forename: Renata
authors.initials: R
authors.lastname: Pasqualini
authors.affiliation: The Methodist Hospital Research Institute, Houston, Texas, USA.
authors.forename: Mauro
authors.initials: M
authors.lastname: Ferrari
authors.affiliation: The Methodist Hospital Research Institute, Houston, Texas, USA.
authors.forename: Biana
authors.initials: B
authors.lastname: Godin