WO2018221918A1 - 오가노이드 배양을 위한 조성물 및 방법 - Google Patents
오가노이드 배양을 위한 조성물 및 방법 Download PDFInfo
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- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
- C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
- C07D473/10—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 3 and 7, e.g. theobromine
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Definitions
- the present invention relates to an organoid culture composition and an organoid culture method using the same.
- Stem cells are of high interest due to their unique multi-potency and self-renewal characteristics, which can be used in various ways such as treatment of incurable diseases, disease modeling, and transplantation of tissues or organs. Recently, however, it has been found that when stem cells are cultured in an appropriate three-dimensional laboratory environment, a structure similar to an organ in vivo is formed. Structures similar to these in vivo organs are named organoids.
- Organoid manufacturing technology is theoretically able to produce almost all kinds of organs only stem cells are expected to be available for a variety of diseases.
- Organoids may be more effective in testing the safety and efficacy of new drugs than cell tissue made in two dimensions, and may be used to improve organ status by implanting organoids in compromised or poorly developed organs. Accordingly, research on organoids is becoming more active in terms of regenerative medicine, and it is expected that organoids can be widely used in various fields.
- R-spondin is essential in the culture medium for in vitro culture of organoids.
- R-spondin is a type of protein, difficult to isolate and purify and difficult to maintain consistent stability when added to the culture.
- R-spondin is an expensive substance amounting to 3 million won per 100 ⁇ g, there is a disadvantage in that the economic efficiency is poor when mass culturing organoids for use as a therapeutic agent. Therefore, it is urgently needed to find an inexpensive and stable R-spondin replacement material for the cultivation of organoids for clinical application.
- One object of the present invention is to provide a composition for organoid culture.
- Another object of the present invention is to provide a method for culturing organoids.
- composition for organoid culture comprising a compound of formula (1):
- organanoid refers to a cell aggregate made by aggregating and recombining cells isolated from stem cells or organ-derived cells by 3D culture, and include organoids or cell clusters formed from suspension cell culture. Can be.
- the organoids may also be termed small pseudo-organs, organ analogs, and pseudo-organs.
- the organoid specifically includes one or more cell types of various kinds of cells constituting an organ or tissue, and should be able to reproduce the shape and function of the tissue or organ.
- organ culture includes all actions that can produce or maintain organoids.
- stem cells or cells isolated from specific tissues may be differentiated into tissues or organ cells having a specific function, and / or may be surviving, growing or proliferating organoids.
- the organoids in which the compositions of the present invention can be used may be, for example, organoids derived from multipotent stem cells (PSC-derived Organiod), or organoid stem cells derived from adult stem cells (adSC-derived Organoid).
- the multipotent stem cells may be embryonic stem cells or dedifferentiated stem cells.
- the organoid may be an organoid derived from adult stem cells, and more preferably an organoid derived from stem cells located in the small intestine crypt.
- the organoid may be, for example, a stomach organoid, a small intestine organoid, a colon organoid, a liver organoid, a thyroid organoid, a lung organoid, or a brain organoid.
- the organoid may be a small intestine organoid.
- it was confirmed that the small intestine organoid cultured in the composition of the present invention maintains the function of small intestinal epithelial cells well.
- the culture composition of the present invention is characterized in that it comprises a compound of formula (I):
- the compound of Formula 1 may be substituted for the activating material of the Wnt signal which is essentially included in conventional organoid culture.
- Wnt signaling is important. Therefore, the addition of an activator of Wnt signaling to an organoid culture is essential.
- Wnt3a or R-spondin is used as an activating material of the Wnt signal for culturing organoids, and it was confirmed that the compound of Formula 1 may replace Wnt3a or R-spondin in organoid culture.
- the composition may not comprise Wnt3a or R-spondin, or may comprise less than the usual concentration of Wnt3a or R-spondin that was generally used for organoid culture.
- the concentration of the compound of Formula 1 included in the composition may be, for example, 5 to 200 ⁇ M, 6.25 to 200 ⁇ M, 6.25 to 100 ⁇ M, 10 to 100 ⁇ M, 10 to 75 ⁇ M, 20 to 75 ⁇ M, based on the total composition volume, And 25 to 75 ⁇ M, 20 to 50 ⁇ M, or 25 to 50 ⁇ M.
- the concentration of the compound of Formula 1 may be 20 to 75 ⁇ M, 25 to 75 ⁇ M, 20 to 50 ⁇ M, or 25 to 50 ⁇ M, more preferably 25 to 75 ⁇ M, or 25 to 50 ⁇ M.
- the concentration of the compound of Formula 1 may be 50 ⁇ M.
- the composition may include a compound of Formula 1 in a basal medium for culturing organoids.
- culture media refers to a medium that enables support for cell growth and survival in vitro and includes all conventional media used in the art suitable for culturing cells. Depending on the type of cultured cells, medium and culture conditions can be selected.
- Such cell culture basal mediums include, for example, Dulbeco's Modified Eagle's Medium (DMEM), Minimal Essential Medium (MEM), Basic Medium Eagle (BME), RPMI1640, F-10, F-12, (Minimal Essential Medium), GMEM ( Glasgow's Minimal Essential Medium), Iscove's Modified Dulbecco's Medium, etc. may be used, and antibiotics such as penicillin-streptomycin or supplements may be added as necessary.
- composition of the present invention may further comprise a component necessary for signal transmission or organoid formation of stem cells.
- the composition may further include one or more selected from the group consisting of epidermal growth factor (EGF), Noggin, thiazobibin, CHIR99021 and CHIR99021.
- EGF epidermal growth factor
- CHIR99021 is a compound represented by the following Chemical Formula 2, 6-[[2-[[4- (2,4-dichlorophenyl) -5- (5-methyl-1H-imidazol-2-yl) -2-pyrimidy Nil] amino] ethyl] amino] -3-pyridinecarbonitrile (CAS No. 252917-06-9);
- Another aspect of the invention provides a method of culturing an organoid, comprising culturing the cells in a composition containing a compound of formula (I):
- the same terms as used in the organoid culture composition of one embodiment are the same as mentioned in the above compositions, unless otherwise specified.
- the organoid culture method of the present invention may include contacting a cell with the compound of Formula 1 and culturing the cell.
- the cells may be stem cells, populations of stem cells, cells differentiated from stem cells, or isolated tissue fragments.
- the cell may be an adult stem cell, more preferably may be a cell included or derived from the small intestine crypt.
- the concentration of the compound of Formula 1 included in the composition may be, for example, 5 to 200 ⁇ M, 6.25 to 200 ⁇ M, 6.25 to 100 ⁇ M, 10 to 100 ⁇ M, 10 to 75 ⁇ M, 20 to 75 ⁇ M, based on the total composition volume, And 25 to 75 ⁇ M, 20 to 50 ⁇ M, or 25 to 50 ⁇ M.
- the concentration of the compound of Formula 1 may be 20 to 75 ⁇ M, 25 to 75 ⁇ M, 20 to 50 ⁇ M, or 25 to 50 ⁇ M, more preferably 25 to 75 ⁇ M, or 25 to 50 ⁇ M.
- the concentration of the compound of Formula 1 may be 50 ⁇ M.
- composition of the present invention may further comprise a component necessary for signal transmission or organoid formation of stem cells.
- the composition may further include one or more selected from the group consisting of epidermal growth factor (EGF), Noggin, thiazobibin, CHIR99021 and CHIR99021.
- EGF epidermal growth factor
- CHIR99021 is a compound represented by the following Chemical Formula 2, 6-[[2-[[4- (2,4-dichlorophenyl) -5- (5-methyl-1H-imidazol-2-yl) -2-pyrimidy Nil] amino] ethyl] amino] -3-pyridinecarbonitrile (CAS No. 252917-06-9):
- the composition may not include Wnt3a or R-spondin, or may generally contain an amount less than the usual concentration of Wnt3a or R-spondin used for organoid culture.
- composition and cultivation method for organoid culture of the present invention contains a compound that can replace the protein component that is essentially added to the existing culture medium, it is possible to maintain a consistent stability when cultivating the organoid and can be cultured at a low cost Do. Accordingly, the present invention can be utilized for mass culture of organoids for use in the development of therapeutic agents.
- 1A is a full well photograph of one of 105 96-well plates used for compound screening. Six columns in the leftmost column were used as the positive control group, six columns in the rightmost column were used as the negative control group, and the entire ten columns were used as the experimental group.
- Figure 1b shows the results of selecting the second candidate using the total small intestine organoid number (Viability factor) and the small intestine organoid number (budding factor) for budding.
- 1C is a small intestine organoid optical micrograph grown in a culture solution containing a compound determined to be significant as a result of screening.
- 2A is an optical micrograph of RS-246204 treated with mouse intestine crypts and cultured for 4 days, where ENR is a positive control (including R-spondin), EN is a negative control, and EN + RS-346304 is an experimental group.
- Figure 2b is a graph showing the results of the WST analysis for confirming the small intestine organoid survival rate according to the RS-246204 concentration.
- the Y axis is a value obtained by converting the WST activity value into a percentage and a negative control was set to 100%.
- Figure 2c is a graph showing the number of forms after growth of small intestine organoids according to the concentration of RS-246204.
- the Y axis is the number of organoids present in the well.
- Budding organoids refer to budded organoids, while non-budding organoids refer to living organoids that have not been budded.
- Total viable organoids means the sum of the number of budding organoids and non-budding organoids.
- Figure 2d is a graph measuring the average length of organoid circumference by date.
- DIV means Day in vitro
- Y-axis is the percentage value of the mean of organoid circumference
- DIV-1 is set to 100%.
- FIG. 2E is an optical micrograph of subcultured after incubation of small intestinal organoids cultured under ENR and EN + RS246204 conditions, respectively.
- Figure 3a shows the results of electrophoresis after RT-PCR using RNA extracted from small intestine organoids cultured under ENR and EN + RS246204 conditions, respectively.
- 3b is a graph showing qRT-PCR results using RNA extracted from small intestine organoids cultured under ENR and EN + RS246204 conditions, respectively.
- Figure 3c is an immunofluorescence staining of small intestine organoids cultured for 4 days in ENR and EN + RS246204 conditions. Hoechst (blue) represents the nucleus and Alexa594 (red) shows the fluorescence for each antibody.
- 4 is an optical micrograph of incubation of phoscholine stimulation after incubation of small intestine organoids for 4 days under ENR and EN + RS246204 conditions.
- Small intestine crypts were isolated from mice for use in small intestine organoid preparation and culture experiments. Specifically, the small intestine was isolated after a 5-7 week old C57Bl / 6 mouse weighing 20-25 g by lethal vertebrae. The small intestine was cut longitudinally from the proximal end to the distal end and laterally cut into pieces of about 5 mm length. The obtained small intestine flakes were washed with ice-cooled Dulbecco's Phosphate-Buffered Saline (DPBS) until the supernatant was sufficiently clear. The crypts were then isolated by treatment with Gentle Cell Dissociation Reagent (StemCell Technologies, Cambridge, Mass.) And filtered with a cell strainer.
- DPBS Dulbecco's Phosphate-Buffered Saline
- Small intestine crypts derived from the small intestine of 7-week-old C57Bl / 6 mice isolated in Example 1 were mixed in Matrigel and placed in each well of a 96-well plate. 80 wells were used per 96-well plate, and three wells were used for each of the positive and negative controls, and three wells for the positive and negative controls with 0.5% DMSO.
- Negative controls include EN culture solution containing no R-spondins or compounds (composition: Advanced DMEM / F-12, Hepes buffer solution, GLUTAMAX-I SUPPLEMENT, penicillin-streptomycin solution, N-acetyl-L-cysteine) , B-27 Serum-Free Supplement, N-2 Supplement, Non-Animal Free Recombinant Muline EGF, Recombinant Muline Nogin, CHIR99021, Thiazobibin) were used as a positive control in EN culture solution.
- % R-spondine was contained (EN culture solution containing 10% R-spondine is called ENR culture solution).
- the experimental group added 8364 different compounds to the EN culture solution at 50 ⁇ M concentration, respectively.
- the number of living organoids, the number of organoids budding, and the circumference of each organoid were measured using the optical microscope photograph.
- For counting we used Image J software's cell counter plug-in, and for perimeter measurement, we used Dixi eXcope software's free-curve tool.
- 295 candidate compounds were selected for use in secondary screening.
- 295 secondary screening candidate compounds were retested in the same manner as the primary screening.
- Twenty-one tertiary screening candidates were selected by combining and ranking the results of the primary and secondary screening.
- the compound of formula 1 (Compound Library No .: STK611777) showed the highest growth effect of small intestine organoids among the candidates, and the ability to grow and maintain organoids most similar to R-spondin was Numerical data and visual confirmation of the presence (Fig. 1c):
- the compound was named 'RS-246204'.
- RS-246024 was added to the culture solution of the small intestine crypts, respectively, to a final concentration of 6.25 ⁇ M, 12.5 ⁇ M, 25 ⁇ M, 50 ⁇ M, 100 ⁇ M, 200 ⁇ M, and then incubated in the incubator for 4 days. After 4 days visual observation, it was confirmed that the small intestine organoids grown in the culture solution containing 25 ⁇ M and 50 ⁇ M RS-246024 showed similar morphology and growth as the small intestine organoids of the ENR culture solution (FIG. 2A).
- RS-246204 was treated at the same concentration for more accurate identification and after 4 days 10 ⁇ l of WST was added to each well.
- WST is a tetrazolium salt that reacts with dehydrogenase to produce formazan, which causes the culture solution to become orange.
- Dehydrogenase is an enzyme that exists only in living cells, so it is possible to confirm the survival rate of the cells when WST is treated. Three hours after the addition of WST, only the culture solution was taken and the absorbance was measured at 450 nm.
- the culture solution containing 25 ⁇ M and 50 ⁇ M of RS-246204 showed an organoid survival similar to that of the ENR culture solution as the positive control (FIG. 2B).
- the largest morphological feature of the small intestine organoids is that they grow while budding.
- the budding ratio of the small intestine organoids grown in the RS-246204-added culture solution (hereinafter referred to as RS-246204 culture solution) is similar to the ENR culture solution, the total number of organoids in the wells cultured for 4 days, The number of nooids and the number of organoids not budding were counted.
- Organoids grown in a culture solution containing 50 ⁇ M of RS-246204 had similar ratios as those grown in the ENR culture solution with a ratio of budding and not budding at about 1: 1 (FIG. 2C). At a concentration lower than 50 ⁇ M, the ratio of non-burring organoids was increased, and most of the organoids were killed at concentrations higher than 50 ⁇ M.
- RNA analysis was performed to confirm that they express specific phylogenetic markers of the small intestine organoids when incubated with RS-246204.
- Small intestine organoids cultured in ENR and RS-246204 culture solutions were collected for 4 days, RNA was extracted, synthesized with cDNA, and subjected to RT-PCR.
- markers for intestinal stem cells goblet cells, paneth cells, enteroendocrine cells and enterocytes, Lgr5, muc-1 and muc, respectively RT-PCR was performed using RNA primers for ⁇ 2, defensing-5, chromogranin A (ChgA), and villin.
- qRT-PCR analysis was performed.
- AccuPower 2X Greenstar qPCR MasterMix (Bioneer) and Thermal Cycler Dice® Real Time System III (Takara, Japan) were used and the reactions were 95 to 10 seconds (denaturation), 57 to 15 seconds (annealing), and 72 to 20 seconds ( extension).
- RNA primers excluded Muc1 from the RT-PCR test changed the enterocyte marker from villin to Intestinal Alkaline Phosphatase (IAP), and used the same sequence for the rest.
- IAP Intestinal Alkaline Phosphatase
- Forskolin is a compound that stimulates the release of ion channels to promote the release of moisture.
- phoscholine when phoscholine is stimulated, the water gathers into the lumen and changes into a large spherical shape, confirming the maintenance of epithelial cell function.
- Optical microscopy was performed at 10 minute intervals for 1 hour immediately after replacement. Based on the optical micrographs, the free curve tool of Dixi eXcope (Korea) program was used to measure the perimeter of each organoid per hour and to analyze the change in perimeter.
- Dixi eXcope Dixi eXcope
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Abstract
Description
Claims (10)
- 제1항에 있어서,상기 오가노이드는 성체 줄기세포로부터 유래한 것을 특징으로 하는 조성물.
- 제1항에 있어서,상기 오가노이드는 소장 오가노이드인 것을 특징으로 하는 조성물.
- 제1항에 있어서,상기 화합물의 농도는 상기 조성물 중 25 내지 50 μM인 것을 특징으로 하는 조성물.
- 제1항에 있어서,상기 조성물은 상피 성장 인자(EGF), 노긴(Noggin), 티아조비빈, CHIR99021 및 CHIR99021의 약학적으로 허용가능한 염으로 이루어진 군으로부터 선택된 하나 이상을 더 포함하는 것을 특징으로 하는 조성물.
- 제6항에 있어서,상기 세포는 줄기세포, 줄기세포의 집단, 단리된 조직단편인 것을 특징으로 하는 배양 방법.
- 제7항에 있어서,상기 줄기세포는 성체줄기세포인 것을 특징으로 하는 배양 방법.
- 제6항에 있어서,상기 화합물의 농도는 상기 조성물 중 25 내지 50 μM인 것을 특징으로 하는 배양 방법.
- 제6항에 있어서,상기 조성물은 상피 성장 인자(EGF), 노긴(Noggin), 티아조비빈, CHIR99021 및 CHIR99021의 약학적으로 허용가능한 염으로 이루어진 군으로부터 선택된 하나 이상을 더 포함하는 것을 특징으로 하는 배양 방법.
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US16/618,268 US12319937B2 (en) | 2017-05-29 | 2018-05-29 | Composition and method for culturing organoids |
JP2020517266A JP7220482B2 (ja) | 2017-05-29 | 2018-05-29 | 腸オルガノイド培養のための組成物及び方法 |
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KR1020170065782A KR101966523B1 (ko) | 2017-05-29 | 2017-05-29 | 오가노이드 배양을 위한 조성물 및 방법 |
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CN111394314A (zh) * | 2020-04-22 | 2020-07-10 | 创芯国际生物科技(广州)有限公司 | 一种肠癌类器官的培养基及培养方法 |
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KR102099402B1 (ko) * | 2018-06-28 | 2020-04-09 | 오가노이드사이언스 주식회사 | 타액선 줄기세포의 기능 강화용 배양 조성물 및 이를 이용한 타액선 줄기세포 기능 강화 방법 |
KR102414138B1 (ko) | 2019-08-01 | 2022-07-22 | 연세대학교 산학협력단 | Wnt 단백질 활성 증진용 배지 조성물 |
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US12319937B2 (en) | 2025-06-03 |
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