摘要:
To provide a composition which is capable of efficiently delivering an siRNA intradermally and of effectively suppressing the expression of a target gene by an RNAi. Provided is a composition for iontophoresis including an siRNA-polycation complex which is charged negatively.
摘要:
Provided is a composition for iontophoresis comprising a negatively-charged protein-liposome complex, in which the protein-liposome complex is formed of a negatively-charged protein and a cationic liposome. Such may provide a composition capable of efficiently delivering a protein having a large molecular weight intradermally and inducing an immune response effectively by iontophoresis.
摘要:
A migration M of a drug ion in a membrane type iontophoresis device for administering the drug ion through a first ion exchange membrane is predicted on the basis of a migration C of the drug ion from the first ion exchange membrane to the outside of the device in the case where a voltage is applied to an electrode by using the device under such a condition that the first ion exchange membrane is not brought into contact with the skin of a living organism and a migration R of the drug ion to a liposome caused by mixing a liposome solution having a predetermined concentration and a drug solution containing a predetermined concentration of the drug ion.
摘要:
A migration M of a drug ion in a membrane type iontophoresis device for administering the drug ion through a first ion exchange membrane is predicted on the basis of a migration C of the drug ion from the first ion exchange membrane to the outside of the device in the case where a voltage is applied to an electrode by using the device under such a condition that the first ion exchange membrane is not brought into contact with the skin of a living organism and a migration R of the drug ion to a liposome caused by mixing a liposome solution having a predetermined concentration and a drug solution containing a predetermined concentration of the drug ion.
摘要:
Systems, devices, and methods for delivering one or more active ingredients to deep regions of hair follicles and intradermal tissues in the vicinity of hair follicles. In some embodiments, a composition is provided including an active ingredient carried in a liposome. The liposome includes a cationic lipid and an amphiphilic glycerophospholipid having a saturated fatty acid moiety and unsaturated fatty acid moiety.
摘要:
A method for coating an object, i.e. a particle, with two sheets of lipid film having a space formed there between. In the method for coating a particle having a positive electrostatic-charging property with two sheets of lipid film, the particle having a positive electrostatic-charging property is brought into contact with a plurality of SUV type liposomes having a negative electrostatic-charging property to form a complex having a negative electrostatic-charging property containing the particle having a positive electrostatic-charging property and the SUV type liposomes having a negative electrostatic-charging property coupled electrostatically with the particle having a positive electrostatic-charging property, and then the complex having a negative electrostatic-charging property is treated with cation.
摘要:
Disclosed is a liposome which includes an antigenic substance therein and has, on its surface, a peptide containing several contiguous arginine residues. The liposome enables an antigen-presenting cell to achieve the selective antigen presentation through an MHC Class-I molecule, and can induce a cell-mediated immunity specifically. The liposome can also induce the antigen presentation by a matured dendritic cell.
摘要:
With the object of providing a liposome having cellular and nuclear entry ability, to achieve this object, a liposome is provided having on its surface a peptide comprising multiple consecutive arginine residues, and specifically a liposome is provided wherein the peptide is modified with a hydrophobic group or hydrophobic compound and the hydrophobic group or hydrophobic compound is inserted into a lipid bilayer so that the peptide is exposed on the surface of the bilayer.
摘要:
The present invention provides a nanoparticle and cell delivery agent, capable of releasing a target substance in a weakly acidic pH environment. Specifically, the present invention provides a nanoparticle comprising a peptide and a particle-forming component, the particle-forming component forming a liposome or a micelle, the peptide having a sequence with 2 to 8 units starting with His (histidine) and ending with an acidic amino acid, wherein each of the units may be identical or different.
摘要:
The present invention provides a nanoparticle and cell induction agent, capable of releasing a target substance in a weakly acidic pH environment. Specifically, the present invention provides a nanoparticle comprising a peptide and a particle-forming component, the particle-forming component forming a liposome or a micelle, the peptide having a sequence with 2 to 8 units starting with His (histidine) and ending with an acidic amino acid, wherein each of the units may be identical or different.