title: Synthesis, characterization and stability of a luteinizing hormone-releasing hormone (LHRH)-functionalized poly(amidoamine) dendrimer conjugate.
abstract: Cancer targeting is crucial for cancer detection, therapy and targeted drug delivery. A dendrimer-peptide conjugate has been synthesized based on poly(amidoamine) dendrimer generation 5 (PAMAM G5) as a platform and a luteinizing hormone-releasing hormone (LHRH) peptide as a targeting moiety. The synthesized conjugate was fully characterized using nuclear magnetic resonance (NMR), UV-Vis spectrometry, reverse-phase high-performance liquid chromatography (RP-HPLC) and matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry. Further stability experiments showed that the synthesized conjugate was stable after 72-h incubation in phosphate-buffered saline (PBS) buffer (pH 7.4) at 37 degrees C. The synthesized conjugate may find applications in biomedical targeting, gene delivery and imaging.
authors.affiliation: Department of Physical Sciences, Charleston Southern University, Charleston, SC 29406, USA. xbi@csuniv.edu
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Bi
authors.forename: Xiangyang
authors.initials: X
authors.lastname: Shi
authors.forename: James R
authors.initials: JR
authors.lastname: Baker
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D050091:Dendrimers; D007987:Gonadotropin-Releasing Hormone / Q000737:chemistry*; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D015394:Molecular Structure; D008970:Molecular Weight; D011073:Polyamines / Q000138:chemical synthesis* / Q000737:chemistry*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013056:Spectrophotometry, Ultraviolet
chemical_list: D001672:Biocompatible Materials; D050091:Dendrimers; C104700:PAMAM Starburst; D011073:Polyamines; D007987:Gonadotropin-Releasing Hormone