*’Nano’ means….
Nanometer: one billionth of a meter
Nano-: prefix comes from the Greek word for ‘dwarf’
Chemical, physical, and biological properties that differ from those of their larger, or bulk counterparts
Nanotechnology: The National Nanotechnology Initiative(NNI)-> the science of materials and phenomena in the range of 1 to 100nm in diameter
*Features of ‘nanoparticles
In 2006 to 2007, Hayakawa
Micromolar 수준의 potency로 PI3K 억제효과를 가지는 생리활성물질(Hit compound) 발견
->한자리수의 nanomolar lead(선도물질) 개발
Broad spectrum PI3K inhibitor 로서 쓰임.
PI 103은 세포투과적.
ATP 와 경쟁하는 경쟁적 kinase inhibitor 이다. 일반적으로 100nM에 효과나타남
PI103은 Class Ia PI 30kinase isoform,
Definition and Biochemistry
of Lectins
Structure : Origin protein + 탄수화물 (ligand)
· Sources of lectins : Animals, plants, bacteria
· Grouping ; by their preferential binding to the type
D-pyranose sugars
by dependent ; C-type or S-type
Lectin as Diagnostic Probes
Binding specificities
Ex ) Covavlin A(Con A) – Gluc
(2) Active targeting
Nanoparticle passive targeting can be enhanced by ‘active targeting’, where specific ligands (peptides, antibodies, aptamers, or small molecules) are attached to the nanoparticle surface to bind receptors/antigens overexpressed on cancer cells. Targeting increases accumulation in tumors and lessens exposure to healthy tissue, which can improve a toxic drug’'s therape