How can I increase the transduction efficiency with the BacMam 2.0 reagents such as the the CellLight and Premo products?
Try varying particle-to-cell ratio (PPC), incubation volume, temperature and, cell density (if adherent cells are transduced). For adherent cells, we recommend a confluence of about 70%. Following the PPC, adjusting the volume is the next best parameter to change to optimize protein expression. If that doesn't work, you can also use the BacMam Enhancer Kit (Cat. No. B10107).
Targeted Polymersome Delivery of siRNA Induces Cell Death of Breast Cancer Cells Dependent upon Orai3 Protein Expression.
Authors:Pangburn TO, Georgiou K, Bates FS, Kokkoli E,
Journal:Langmuir
PubMed ID:22827285
Polymersomes, polymeric vesicles that self-assemble in aqueous solutions from block copolymers, have been avidly investigated in recent years as potential drug delivery agents. Past work has highlighted peptide-functionalized polymersomes as a highly promising targeted delivery system. However, few reports have investigated the ability of polymersomes to operate as gene delivery ... More
Identification and Characterization of Receptor-Specific Peptides for siRNA Delivery.
Authors:Ren Y, Hauert S, Lo JH, Bhatia SN,
Journal:ACS Nano
PubMed ID:22909216
Tumor-targeted delivery of siRNA remains a major barrier in fully realizing the therapeutic potential of RNA interference. While cell-penetrating peptides (CPP) are promising siRNA carrier candidates, they are universal internalizers that lack cell-type specificity. Herein, we design and screen a library of tandem tumor-targeting and cell-penetrating peptides that condense siRNA ... More
Cell-permeable gomesin peptide promotes cell death by intracellular Ca(2+) overload.
Authors:Paredes-Gamero EJ, Casaes-Rodrigues RL, Moura GE, Domingues TM, Buri MV, Ferreira VH, Trindade ES, Moreno-Ortega AJ, Cano-Abad MF, Nader HB, Ferreira AT, Miranda A, Justo GZ, Tersariol IL,
Journal:Mol Pharm
PubMed ID:22873645
In recent years, the antitumoral activity of antimicrobial peptides (AMPs) has been the goal of many research studies. Among AMPs, gomesin (Gm) displays antitumor activity by unknown mechanisms. Herein, we studied the cytotoxicity of Gm in the Chinese hamster ovary (CHO) cell line. Furthermore, we investigated the temporal ordering of ... More
Tear-mediated delivery of nanoparticles through transcytosis of the lacrimal gland.
Authors:Hsueh PY, Edman MC, Sun G, Shi P, Xu S, Lin YA, Cui H, Hamm-Alvarez SF, MacKay JA,
Journal:J Control Release
PubMed ID:25523518
Rapid clearance from the tears presents a formidable obstacle to the delivery of peptide drugs to the eye surface. This impedes therapies for ocular infections, wound healing, and dry-eye disease that affect the vision of millions worldwide. To overcome this challenge, this manuscript explores a novel strategy to reach the ... More
A Rab11a-enriched subapical membrane compartment regulates a cytoskeleton-dependent transcytotic pathway in secretory epithelial cells of the lacrimal gland.
Authors:Xu S, Edman M, Kothawala MS, Sun G, Chiang L, Mircheff A, Zhu L, Okamoto C, Hamm-Alvarez S,
Journal:J Cell Sci
PubMed ID:21984810
'Despite observations that the lacrimal gland has been identified as the principal source of dimeric immunoglobulin A (dIgA) in tears, the mechanism used by lacrimal gland acinar cells (LGACs) to transcytose dIgA produced by interstitial plasma cells is not well-characterized. This study identifies a transcytotic pathway in LGACs regulated by ... More