1,1′-Carbonyldiimidazole
(CDI), bis(2-hydroxyethyl) disulfide (BHED), spermidine (SPM) trihydrochloride,
putrescine (PUT) dihydrochloride, and branched polyethylenimine (PEI,
25 kDa) were purchased from Sigma-Aldrich (St. Louis, MO). Dichloromethane
(DCM) (99.9%, extra dry, AcroSeal),
tetrahydrofuran (THF, 99.85%,
extra dry, AcroSeal), 5-sulfosalicylic acid dihydrate (SSA), 1,7-diaminoheptane
(DAH), dansyl chloride (5-dimethylamino-1-naphthalenesulfonyl chloride,
98%), and
1,6-hexanediol were from Acros Organics (Fair Lawn, NJ).
l-Proline was from Alfa Aesar (Ward Hill, MA). Spermine (SPM)
was from MP Biomedicals (Santa Ana, CA). BENSpm was synthesized by
following a previously described procedure.
22 (link) Plasmid DNA containing a luciferase reporter gene (
gWiz-Luc) was
from Aldevron (Fargo, ND), and human tumor necrosis factor (TNFα)
plasmid DNA was obtained from InvivoGen (San Diego, CA). Dulbecco’s
modified Eagle’s medium (DMEM), Eagle’s minimum essential
medium (EMEM), Dulbecco’s phosphate-buffered saline (PBS),
fetal bovine serum (FBS),
l-glutamine, and penicillin–streptomycin
were from Thermo Scientific (Waltham, MA).
RT-PCR primers were purchased
from Invitrogen (Carlsbad, CA). All other reagents and chemicals were
obtained from Fisher Scientific or VWR International unless otherwise
stated.
Zhu Y., Li J., Kanvinde S., Lin Z., Hazeldine S., Singh R.K, & Oupický D. (2014). Self-Immolative Polycations as Gene Delivery Vectors and Prodrugs Targeting Polyamine Metabolism in Cancer. Molecular Pharmaceutics, 12(2), 332-341.