Method for evaluating cell killing efficacy

Abstract

The invention provides a method for evaluating cell killing efficacy. The evaluation method comprises the following steps: (1) co-culturing a target cell carrying a fluorescence label A and an effector cell, and dyeing and labeling dead cells generated after co-culture by using a fluorescence label B, wherein the excitation light wavelengths corresponding to the fluorescence label A and the fluorescence label B are different; (2) respectively using a bright field, a fluorescence channel matched with the fluorescence label A and a fluorescence channel matched with the fluorescence label B to perform microscopic imaging on the dyed and labeled cells to obtain a microscopic image; and (3) carrying out superposition synthesis analysis on the obtained microscopic image, and evaluating the cellkilling efficacy of the effector cells according to an analysis result. According to the invention, the fluorescent reagent A and the fluorescent label B are respectively used for staining and markingthe target cells and dead cells, and then fluorescence microscopic imaging and image synthesis analysis are carried out, so that the evaluation result of the cell killing efficacy can be quickly, intuitively and accurately obtained.

Description

technical field [0001] The invention belongs to the technical field of cell killing activity detection, and in particular relates to a method for evaluating cell killing efficacy. Background technique [0002] Compared with the current biological products, immune cell therapy products have unique characteristics, such as large initial individual differences, low scale of preparation process, most of the preparations are living cell products, and the mechanism of action is not very clear. Poor consistency, limited batches, short validity periods, and poor comparability of the same type of products, etc., all of these characteristics greatly increase the difficulty of quality control research, among which the quality control of lethal efficacy is one of the difficulties. At the same time, it is also necessary to evaluate the killing ability of immune cells in the evaluation of the patient's immune level, the evaluation of the prognosis of tumor treatment, and the evaluation of...

AI Technical Summary

Problems solved by technology

Therefore, although flow cytometry can specifically detect the apoptosis rate of target cells, flow cytometry is a liquid flow system and cannot collect cell images. If you need to verify the accuracy of the results, you need to use a microscope or other instruments to observe corroborate

As a result, although flow cytometry analysis methods are widely used in the scientific research field, they are difficult to be widely used in the fields of medical diagnosis and biomedical industrialization that require standardized and repeatable verification.