《TAT-functionalized PEI-grafting rice bran polysaccharides for safe and efficient gene delivery》 was written by Liu, Liang; Yan, Yujian; Ni, Danni; Wu, Shuheng; Chen, Yiran; Chen, Xin; Xiong, Xuemin; Liu, Gang. Safety of Di(1H-imidazol-1-yl)methanone And the article was included in International Journal of Biological Macromolecules in 2020. The article conveys some information:
Polysaccharides are considered to be promising candidates for non-viral gene delivery because of their mol. diversity, which can be modified to fine-tune their physicochem. properties. In this work, transcriptional activator protein (TAT) functionalized PEI grafted polysaccharide polymer (PRBP) was prepared by using rice bran polysaccharide as the starting material, and characterized by various methods. The potential of TAT functionalized PRBP (PRBP-TAT) as gene vector was studied in vitro, including DNA loading capacity, DNA protection ability and biocompatibility. The cell uptake and transfection efficiency of the PRBP-TAT/pDNA polyplexes were studied. The results showed that PRBP-TAT could completely condense DNA at N/P 2. The PRBP-TAT/pDNA polyplexes could protect DNA from degrading by DNase and were efficiently internalized by cells. Biocompatibility result showed that PRBP-TAT had no significant cytotoxicity and effect on cell proliferation. At low N/P ratios of 1-3.5, PRBP-TAT showed higher transfection efficiency than PEI30k and PEI30k-grafted rice bran polysaccharide. PRBP-TAT and PEI showed the highest transfection efficiency of 42.8% and 28.1% when pDNA is 2 ug and N/P ratio is 1.5, resp., while PRBP showed the highest transfection efficiency of 37.3% at N/P 2.5. These results indicate that PTA is a promising candidate vector for safe and efficient gene delivery. In the experiment, the researchers used many compounds, for example, Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Safety of Di(1H-imidazol-1-yl)methanone)
Di(1H-imidazol-1-yl)methanone(cas: 530-62-1) is a peptide coupling reagent,it is used in the synthesis of peptides. Reacts readily with carboxylic acids to form acyl imidazoles; subsequent reaction with amines to form amides goes smoothly.Safety of Di(1H-imidazol-1-yl)methanone
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem