IP Library Granted Patent US 10,653,624
Granted Patent B2
US 10,653,624 · App. 15/995,638 · Granted May 19, 2020

Delivery method of target material into extracellular vesicles using extracorporeal shockwave

Inventors: Kihwan Kwon (Seoul, KR); Jihwa Chung (Gyeonggi-do, KR); Kyounghwa Kim (Seoul, KR)
Assignee: EXOLLENCE BIOTECHNOLOGY CO., LTD.
A61K9/1271A61K41/0028A61K47/6907C12N13/00C12N15/113C12N15/87C12N15/88C12N15/111C12N2310/14C12N2310/141C12N2310/3517C12N2320/32
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Quick Facts
Patent No.
US 10,653,624
App. No.
15/995,638
Granted
May 19, 2020
Kind
B2
Abstract

The present disclosure relates to a method of delivering target materials into extracellular vesicles including exposing the target materials and the extracellular vesicles to extracorporeal shockwaves, a method of preparing target material-introduced extracellular vesicles, extracellular vesicles prepared by the method, drug delivery vehicles including extracellular vesicles, and a method of delivering target materials into cells. The present disclosure exposes extracellular vesicles derived from natural organisms such as animal cells, plant cells, and microorganisms including bacteria and eukaryotic bacteria as well as artificially produced extracellular vesicles to extracorporeal shockwaves extracellularly. Thus, the high-level energy extracorporeal shockwaves can be used to deliver the target material into the extracellular vesicle efficiently. When treating with extracorporeal shockwaves, the ability of target material-introduced extracellular vesicles to incorporate into target cells also increases. According to the method of the present disclosure, the target materials can be delivered into cells with high efficiency, being utilized in various fields.

Claims (7)

1. A method of delivering a target material into an isolated extracellular vesicle, the method comprising:

exposing the target material and the isolated extracellular vesicle to an extracorporeal shockwave for i) increasing a number of the isolated extracellular vesicle, ii) increasing properties of at least one selected from the group consisting of zeta potential of the isolated extracellular vesicle and an ability of incorporation of the isolated extracellular vesicle into cells, and iii) delivering the target material into the isolated extracellular vesicle.

2. The method of claim 1 , wherein the target material includes at least one selected from the group consisting of a nucleic acid, a protein, and a compound.

3. The method of claim 1 , wherein the extracorporeal shockwave has an energy range from 0.05 mJ/mm 2 to 0.9 mJ/mm 2 .

4. The method of claim 1 , wherein the extracellular vesicle includes at least one selected from the group consisting of an exosome, an ectosome, a microvesicle, and an apoptotic body.

5. A method of preparing a target material-introduced extracellular vesicle, the method comprising:

exposing an target material and an isolated extracellular vesicle to an extracorporeal shockwave for i) increasing a number of the isolated extracellular vesicle, ii) increasing properties of at least one selected from the group consisting of zeta potential of the isolated extracellular vesicle and an ability of incorporation of the isolated extracellular vesicle into cells, and iii) delivering the target material into the isolated extracellular vesicle.

Assignments (3)
CHANGE OF NAME Recorded Aug 29, 2022
From: EXOLLENCE BIOTECHNOLOGY CO., LTD.
To: EXOLLENCE CO., LTD.
Reel/Frame 061355/0265 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 4, 2019
From: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION
To: EXOLLENCE BIOTECHNOLOGY CO., LTD.
Reel/Frame 050902/0435 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 12, 2018
From: KWON, KIHWAN; CHUNG, JIHWA; KIM, KYOUNGHWA
To: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION
Reel/Frame 046329/0760 →
Priority Claims (2)
KR 10-2017-0069309 · Jun 2, 2017 · national
KR 10-2018-0055994 · May 16, 2018 · national
Continuity (1)
Related Publication 20180344643A1 · Dec 6, 2018