CN212669708U - Organoid culture chip - Google Patents
Organoid culture chip Download PDFInfo
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- CN212669708U CN212669708U CN202021851053.1U CN202021851053U CN212669708U CN 212669708 U CN212669708 U CN 212669708U CN 202021851053 U CN202021851053 U CN 202021851053U CN 212669708 U CN212669708 U CN 212669708U
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Abstract
The utility model belongs to the field of organoid chips, in particular to an organoid culture chip, which comprises a sheet structure (100), micropores (101), micropore openings (1011), micropore bottom surfaces (1012), micropore side walls (1013) and a fence structure (102); the chip can be placed in a common cell culture dish and a common pore plate, and after cells are inoculated to the chip, the cells are gathered at the bottom of the micropore under the combined action of gravity and mechanical force generated by the inclined side wall, and a three-dimensional cell ball is formed spontaneously. The formed cell spheres can be further cultured to form desired organoid tissues.
Description
Technical Field
The utility model belongs to organoid chip field specifically discloses an organoid cultivates chip.
Background
With the development of cell biology and organoid technology, three-dimensional cell culture technology is gradually replacing the traditional two-dimensional cell culture technology. At present, various types of cells have strong self-assembly capacity, such as pluripotent stem cells, tumor cells, tissue cells and the like. The three-dimensional cell spheres are three-dimensional aggregates formed by self-assembly of various cells, are closer to the structural morphology of in vivo tissue cells and are more beneficial to the research of functional mechanisms of the in vivo tissue cells. Thus, three-dimensional cell spheres can be used in numerous biological and biomedical fields of research, such as: developmental, pathological, pharmacological, cancer treatment, etc.
The existing three-dimensional cell aggregation culture methods mainly comprise a hanging drop method, a suspension culture method, a liquid drop method, a low-adhesion culture dish and the like, and the controllability and the repeatability of the cell balls prepared by the methods are poor. In addition, when a three-dimensional organoid is constructed, ECM components such as matrigel, collagen and the like are also introduced, and the non-human ECM components can also have certain influence on the constructed human organoid.
SUMMERY OF THE UTILITY MODEL
To this problem, the utility model provides a chip is cultivateed to similar organ, the technical scheme of the utility model as follows:
an organoid culture chip, the chip includes a sheet structure, a micropore opening, a micropore bottom, a micropore sidewall, a fence structure; the micropores are arranged on the sheet structure in an array manner, the top of each micropore is provided with a micropore opening, the bottom of each micropore is the bottom of each micropore, and the side of each micropore is the side wall of each micropore; a fence structure is arranged on the periphery of the upper surface of the sheet structure, and is higher than the surface of the sheet structure; the openings of the micropores are flush with the surface of the sheet structure, and the bottom surfaces of the micropores extend into the sheet structure and are lower than the surface of the sheet structure; the shape of the micropore opening is the same as that of the micropore bottom surface, and the size of the micropore opening is larger than that of the micropore bottom surface; the microwells contain at least two sloped microwell sidewalls.
Further, in the above organoid culture chip, the thickness of the sheet structure is 0.5 to 2.5 mm; the sheet structure is circular or square.
Further, in the above-mentioned organoid culture chip, when the sheet structure is circular, the diameter of the sheet structure is 0.5 to 15 cm; when the sheet structure is square, the side length of the sheet structure is 0.5-15 cm.
Further, in the above organoid culture chip, the width of the rail structure on the sheet structure is 0.2 to 1.5 mm, and the height relative to the surface of the sheet structure is 0.5 to 2.5 cm.
Further, in the above organoid culture chip, the opening of the micro-hole is in the shape of a regular polygon, and a line connecting the center of the opening of the micro-hole and the center of the bottom surface of the micro-hole is perpendicular to the bottom surface of the micro-hole.
Furthermore, in the above organoid culture chip, the diameter of the opening of the micro-hole is 300-1000 μm; the diameter of the bottom surface of the micropore is 150-500 microns; the spacing between the micropores is 0-100 microns; the depth of the micropores is 200-1000 microns.
Further, in the above-mentioned organoid culture chip, an angle formed by the side wall of the micro well and the bottom surface of the micro well is 90 to 150 degrees.
Further, the above organoid culture chip is made of transparent materials by mold opening and injection molding; the transparent material includes but is not limited to PS, PC, PMMA and PDMS.
Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: the utility model provides a chip is cultivateed to organoid, this chip adopt the thin slice design to be equipped with array structure's micropore on every chip. Wherein the upper opening of each microwell has a size larger than the lower surface of the pit, and further, each microwell has at least two sloped sidewalls. After seeding the cells, the cells are allowed to accumulate at the bottom of each microwell under the combined action of gravity and the mechanical force generated by the sloped sidewalls, thereby forming a cell pellet by cell aggregation without the need for ECM components. Meanwhile, the organoid chip can be embedded into the conventional cell culture consumables to serve as a disposable culture consumable with low cost, has user-friendliness and flexibility, and can meet the requirements of preparation and three-dimensional culture of high-throughput organoids.
Drawings
FIG. 1 is a top view of the whole of an organoid culture chip according to the present invention;
FIG. 2 is a side view in longitudinal section of an organoid culture chip according to the present invention;
FIG. 3 is a schematic view showing the structure of the wells of an organoid culture chip according to the present invention, showing the case where the spaces between the wells are large in the examples;
FIG. 4 is a schematic view showing the structure of the wells of an organoid culture chip according to the present invention, in which the wells are spaced at a small distance in the examples;
in the figure: 100 sheet structure, 101 wells, well openings 1011, well bottoms 1012, well sidewalls 1013, and rail structure 102.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Organoid culture chips in examples 1 to 5 described below are shown in FIGS. 1 to 4.
Example 1
An organoid culture chip, said chip comprising sheet structure 100, microwells 101, microwell openings 1011, microwell bottoms 1012, microwell sidewalls 1013, fence structure 102; the micropores 101 are arranged in an array on the sheet structure 100, the top of the micropores 101 is a micropore opening 1011, the bottom of the micropores 101 is a micropore bottom 1012, and the sides of the micropores 101 are micropore sidewalls 1013; the periphery of the upper surface of the sheet structure 100 is provided with a fence structure 102, and the fence structure 102 is higher than the surface of the sheet structure 100; the micro-pore openings 1011 are flush with the surface of the sheet structure 100, and the micro-pore bottom surfaces 1012 extend into the sheet structure 100 below the surface of the sheet structure 100; the shape of the micro-pore opening 1011 is the same as the shape of the micro-pore bottom 1012, the size of the micro-pore opening 1011 is larger than the size of the micro-pore bottom 1012; the microwell 101 has at least two sloped microwell sidewalls 1013. The sheet structure 100 of the chip is circular and the microwell opening 1011 is square.
The sheet structure 100 has a diameter of 1.5 cm and a thickness of 1.5 mm; the sides of the micro-hole openings 1011 are 600 microns, the sides of the micro-hole bottom surfaces 1012 are 200 microns, the depth is 500 microns, and the pitch 1014 of the micro-holes 101 is 100 microns.
The width of the fence structure 102 is 0.5 mm and the height is 1 cm.
The chip is prepared by PS injection molding.
Example 2
An organoid culture chip, said chip comprising sheet structure 100, microwells 101, microwell openings 1011, microwell bottoms 1012, microwell sidewalls 1013, fence structure 102; the micropores 101 are arranged in an array on the sheet structure 100, the top of the micropores 101 is a micropore opening 1011, the bottom of the micropores 101 is a micropore bottom 1012, and the sides of the micropores 101 are micropore sidewalls 1013; the periphery of the upper surface of the sheet structure 100 is provided with a fence structure 102, and the fence structure 102 is higher than the surface of the sheet structure 100; the micro-pore openings 1011 are flush with the surface of the sheet structure 100, and the micro-pore bottom surfaces 1012 extend into the sheet structure 100 below the surface of the sheet structure 100; the shape of the micro-pore opening 1011 is the same as the shape of the micro-pore bottom 1012, the size of the micro-pore opening 1011 is larger than the size of the micro-pore bottom 1012; the microwell 101 has at least two sloped microwell sidewalls 1013. The sheet structure 100 of the chip is circular and the microwell opening 1011 is square.
The sheet structure 100 has a diameter of 2 cm and a thickness of 1.5 mm; the sides of the micro-hole openings 1011 are 600 microns, the sides of the micro-hole bottom surfaces 1012 are 200 microns, the depth is 450 microns, and the pitch 1014 of the micro-holes 101 is 100 microns.
The width of the fence structure 102 is 1 mm and the height is 1.6 cm.
The chip is prepared by PMMA injection molding.
Example 3
An organoid culture chip, said chip comprising sheet structure 100, microwells 101, microwell openings 1011, microwell bottoms 1012, microwell sidewalls 1013, fence structure 102; the micropores 101 are arranged in an array on the sheet structure 100, the top of the micropores 101 is a micropore opening 1011, the bottom of the micropores 101 is a micropore bottom 1012, and the sides of the micropores 101 are micropore sidewalls 1013; the periphery of the upper surface of the sheet structure 100 is provided with a fence structure 102, and the fence structure 102 is higher than the surface of the sheet structure 100; the micro-pore openings 1011 are flush with the surface of the sheet structure 100, and the micro-pore bottom surfaces 1012 extend into the sheet structure 100 below the surface of the sheet structure 100; the shape of the micro-pore opening 1011 is the same as the shape of the micro-pore bottom 1012, the size of the micro-pore opening 1011 is larger than the size of the micro-pore bottom 1012; the microwell 101 has at least two sloped microwell sidewalls 1013. The sheet structure 100 of the chip is square, and the micro-hole openings 1011 are regular hexagons.
The sheet structure 100 has a side length of 2 cm and a thickness of 1.5 mm; the sides of the micro-hole openings 1011 are 450 microns, the sides of the micro-hole bottom surfaces 1012 are 150 microns, the depth is 500 microns, and the pitch 1014 of the micro-holes 101 is 100 microns.
The width of the rail structure 102 is 0.5 mm and the height is 0.5 cm.
The chip is prepared by injection molding of PDMS.
Example 4
Human induced pluripotent stem cell balls were prepared using one of the organoid culture chips of example 2.
(1) Carrying out ultraviolet sterilization treatment on the chip in the example 2;
(2) placing the chip at the bottom of a cell culture 24-well plate;
(3) human induced pluripotent stem cells were subjected to the method of 5X106The cells with the concentration of one cell/ml are inoculated in a 24-well plate and are statically cultured for 24 hours, and the human induced pluripotent stem cells are gathered at the bottom 1012 of the micropore to form a cell ball;
(4) after the culture is finished, the organoids in the chip are inactivated, and the whole chip is discarded.
Example 5
Human primary ovarian cancer tumor organoids were prepared using an organoid culture chip of example 2.
(1) Carrying out ultraviolet sterilization treatment on the chip in the example 2;
(2) placing the chip at the bottom of a cell culture 24-well plate;
(3) human primary ovarian cancer cells were treated according to 1X106Inoculating the cells with the concentration of one cell/ml in a 24-well plate, and standing and culturing for 24 hours, wherein the human primary ovarian cancer cells are gathered at the bottom 1012 of the micropore to form a cell ball;
(4) after the culture is finished, the organoids in the chip are inactivated, and the whole chip is discarded.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention can not be limited thereby, and the simple equivalent changes and modifications made according to the claims and the utility model also belong to the protection scope of the present invention.
Claims (8)
1. An organoid culture chip, comprising a sheet structure (100), microwells (101), microwell openings (1011), microwell bottoms (1012), microwell sidewalls (1013), a rail structure (102); the micropores (101) are arranged on the sheet structure (100) in an array, the top of the micropores (101) is a micropore opening (1011), the bottom of the micropores (101) is a micropore bottom surface (1012), and the sides of the micropores (101) are micropore side walls (1013); the periphery of the upper surface of the sheet structure (100) is provided with a fence structure (102), and the fence structure (102) is higher than the surface of the sheet structure (100); the microporous opening (1011) is flush with the surface of the sheet structure (100), and the microporous bottom surface (1012) extends into the sheet structure (100) below the surface of the sheet structure (100); the shape of the micro-pore opening (1011) is the same as the shape of the micro-pore bottom surface (1012), the size of the micro-pore opening (1011) is larger than the size of the micro-pore bottom surface (1012); the microwell (101) has at least two sloped microwell sidewalls (1013).
2. The organoid culture chip of claim 1, wherein the sheet structure (100) has a thickness of 0.5-2.5 mm; the sheet structure (100) is circular or square.
3. The organoid culture chip of claim 1, wherein when said sheet structure (100) is circular, said sheet structure has a diameter of 0.5-15 cm; when the sheet structure (100) is square, the side length of the sheet structure is 0.5-15 cm.
4. The organoid culture chip of claim 2, wherein the width of the rail structure (102) on the sheet structure (100) is 0.2-1.5 mm and the height relative to the surface of the sheet structure is 0.1-2.5 cm.
5. The organoid culture chip of claim 1, wherein the shape of said microwell opening (1011) is a regular polygon, and the line connecting the center of said microwell opening (1011) to the center of said microwell bottom (1012) is perpendicular to said microwell bottom (1012).
6. The organoid culture chip of claim 5, wherein the diameter of the opening (1011) of the microwell is 300-1000 μm; the diameter of the bottom surface (1012) of the micropore is 150-500 microns; the spacing (1014) between the micropores is 0-100 microns; the depth of the micropores (101) is 200-1000 microns.
7. The organoid culture chip of claim 6, wherein the angle between said well side walls (1013) and said well bottom (1012) is 90-150 degrees.
8. The organoid culture chip of any of claims 1-7, wherein the chip is made of transparent material by mold-open injection molding; the transparent material includes but is not limited to PS, PC, PMMA and PDMS.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021851053.1U CN212669708U (en) | 2020-08-31 | 2020-08-31 | Organoid culture chip |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021851053.1U CN212669708U (en) | 2020-08-31 | 2020-08-31 | Organoid culture chip |
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| CN212669708U true CN212669708U (en) | 2021-03-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113278525A (en) * | 2021-05-24 | 2021-08-20 | 山东优检生物技术有限公司 | Stem cell ball or tumor ball culture device and culture method |
| CN113373052A (en) * | 2021-05-08 | 2021-09-10 | 广州迈普再生医学科技股份有限公司 | Organoid forming chip based on microfluidic technology and working method thereof |
-
2020
- 2020-08-31 CN CN202021851053.1U patent/CN212669708U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373052A (en) * | 2021-05-08 | 2021-09-10 | 广州迈普再生医学科技股份有限公司 | Organoid forming chip based on microfluidic technology and working method thereof |
| CN113373052B (en) * | 2021-05-08 | 2023-04-07 | 广州迈普再生医学科技股份有限公司 | Organoid forming chip based on microfluidic technology and working method thereof |
| CN113278525A (en) * | 2021-05-24 | 2021-08-20 | 山东优检生物技术有限公司 | Stem cell ball or tumor ball culture device and culture method |
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