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Organoid activity evaluation method and system based on microscopic image

A technology of microscopic images and evaluation methods, applied in the field of biomedicine, can solve the problems of no real elimination, large subjective influence, human error, etc., and achieve the effect of saving manpower, material resources and time costs.

Active Publication Date: 2021-08-20
ACCURATE INT BIOTECHNOLOGY (GUANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing organoid evaluation system is generally based on manual observation, and there are human errors. There is no systematic evaluation system, which is greatly influenced by subjectivity. For example, experimenter A thinks an organoid is highly active, while experimenter B It is considered that the activity of such organs is average; only a few evaluation systems are also based on the significant difference between before and after comparison of organoids under the condition of toxicity or dosing, which does not really eliminate the phenomenon of inconsistency in human evaluation

Method used

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  • Organoid activity evaluation method and system based on microscopic image
  • Organoid activity evaluation method and system based on microscopic image
  • Organoid activity evaluation method and system based on microscopic image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] This embodiment provides a method for evaluating the viability of mouse liver organoids based on microscopic images, which includes the following steps:

[0074] (1) Obtain image data of liver organoids. The specific method is: use an optical microscope to scan and take pictures of the organoid well plate (or petri dish) to be scored, and obtain images of organoids in all regions of the well plate. Microscopic images preferably contain three-dimensional information (ie slice stacking).

[0075] (2) Load the data into the organoid viability evaluation device, and input the sample category: liver organoid.

[0076] (3) Stitching all images uniformly into a panoramic image, such as figure 1 .

[0077] (4) Screen the organoids that meet the requirements in the image, and ignore the unnecessary organoids (diameter less than 30 μm, loose outer wall and collapsed shape, poor light transmittance and internal necrosis).

[0078] (5) Frame the screened liver organoids and sco...

Embodiment 2

[0081] This embodiment provides a method for evaluating the viability of mouse lung organoids based on microscopic images, comprising the following steps:

[0082] (1) Obtain image data of lung organoids. The specific method is: use an optical microscope to scan and take pictures of the organoid well plate (or petri dish) to be scored, and obtain images of organoids in all regions of the well plate. Microscopic images preferably contain three-dimensional information (ie slice stacking)

[0083] (2) Load the data into the "AI Organoid Scoring System" and enter the sample category: lung mature organoids.

[0084] (3) Stitching all images uniformly into a panoramic image, such as image 3 .

[0085] (4) Screen the organoids that meet the requirements in the image, and ignore the unnecessary organoids (diameter less than 30 μm, loose outer wall and collapsed shape, poor light transmittance and internal necrosis).

[0086] (5) Frame the screened lung organoids and score them on...

Embodiment 3

[0089] The method in Example 2 was compared with the method for evaluating the activity of the ATP method, using mouse lung organoids, and the specific operations were as follows:

[0090](1) Take 5-well mouse lung organoids, and use the method in Example 2 to take microphotographs and organoid activity scores; the scores are 20 points for No. 1, 38 points for No. 2, 57 points for No. 3, and 62 points for No. 4. points, 88 points on the 5th.

[0091] (2) Take 5-well mouse lung organoids, and use the ATP method to measure the cell viability value. The absorbance values ​​obtained are 72561 for No. 1, 165413 for No. 2, 358941 for No. 3, 385497 for No. 4, and 635210 for No. 5. The ATP method is a routine method in the art for determining the viability of organoids, and will not be described in detail here.

[0092] (3) Make a line graph such as Figure 5 As shown, the curves of the AI ​​method and the ATP method are basically consistent, and the AI ​​activity evaluation is accu...

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Abstract

The invention provides an organoid activity evaluation method and system based on microscopic images. The method comprises the following steps: acquiring microscopic images of a series of organoids; carrying out artificial type judgment on the organoid, then carrying out organoid frame selection and one-by-one activity scoring, taking a scoring result as a training set of an organoid activity evaluation model, and training the organoid activity evaluation model by adopting the training set; and performing automatic vitality scoring on a microscopic image by using the trained organoid vitality evaluation model, outputting the score of each organoid, and summarizing and weighting the score. The system comprises a microscopic image acquisition device; an organoid activity evaluation device, which is connected with the microscopic image acquisition device, and comprises an organoid target detection module, an organoid feature extractor and a scoring module; and a communication device. According to the method, manpower, material resources and time cost can be greatly saved, the method is not influenced by subjective scoring, and long-term, uniform, accurate and stable scoring is obtained.

Description

technical field [0001] The invention belongs to the technical field of biomedicine, and in particular relates to a method and system for evaluating the viability of organoids based on microscopic images. Background technique [0002] Organoids are three-dimensional cell complexes that are structurally and functionally similar to target organs or tissues and have stable phenotypic and genetic characteristics. , which can be cultured in vitro for a long period of time, reproduces two events that occur in vivo in organoids during its formation, namely, the sorting and aggregation of the same kind of cells in an adhesive manner and the spatially specific cell lineage commitment. Compared with the traditional 2D cell culture model, 3D cultured organoids contain a variety of cell types, breaking through the simple physical contact between cells, forming a closer biological communication between cells, and inter-cell interaction, induction, feedback, and cooperation Developing and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06V20/693G06V20/698G06N3/045G06F18/213G06F18/23G06F18/2415
Inventor 李刚陈泽新于言朱宇
Owner ACCURATE INT BIOTECHNOLOGY (GUANGZHOU) CO LTD
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