Imaging, biodistribution and in vitro study of smart 99mTc-PAMAM G4 dendrimer as novel nano-complex

Overexpression of folic acid receptor in various human tumors cells makes it as good candidate for targeting delivery of chemotherapeutic and radiopharmaceutical agents. In this research, FA used for functionalization of PEG modified PAMAM G4 dendrimer as a smart delivery of 5-FU and Tc-99m for the breast carcinoma in order to chemotherapeutic and imaging goals. One aim of this research was assess the FA-mediated cell viability assay of PEG-PAMAM G4-FA-5FU-Tc-99m and in vitro uptake of PEG-PAMAM G4FA-Tc-99m as the novel nano -complex determined on C2C12 (normal cell) and MCF-7 (breast cancer cell) cell lines. Other main goals Were studied. Morover, an investigation in to in vivo imaging and biodistribution was carried out via a novel radio tracer by which tumor accumulation and site were obviously detected. The targeted tumor images taken by tail intravenous injection demonstrated that nano -complex can be smartly used in imaging study of the clinical practices. Also, the biodistribution of this nano -complex was investigated and the organ predestination of Tc-99m labeled nano -complex (%ID/g) was ascertained. (C) 2017 Elsevier B.V. All rights reserved.