Cytocidal Cell Extract Production via Medium Replacement
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Solution Overview
Problem
Conventional anticancer agents often have strong side effects and fail to achieve sufficient effects, making it necessary to develop new therapeutic agents for cancer treatment.
Innovation Solution
A method is developed to produce a composition with cytocidal activity by culturing malignant tumor-derived cells in a culture medium until a high cell density is reached, then replacing the medium with a physiological buffer salt solution, which triggers cell death and allows for the recovery of a cell extract component with cytocidal activity, which can be used to create a novel anticancer agent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If malignant tumor cells are cultured in a culture medium to high density, then cell density increases, but the composition becomes extremely miscellaneous making isolation of active substances difficult
Solution Approach 1:
The patent extracts only the necessary components by replacing the culture medium with a physiological buffer salt solution. This removal of the complex culture medium eliminates miscellaneous substances while retaining the cytocidal active substances produced by the cells, directly resolving the contradiction between high cell density and composition complexity
Solution Approach 2:
The patent changes the chemical composition parameter of the medium from a complex culture medium containing nutrients and growth factors to a simple physiological buffer salt solution. This parameter change simplifies the overall composition while maintaining cell viability and active substance production, solving the contradiction between quantity and complexity
2Reliability
If conventional anticancer agents are used, then cancer treatment is attempted, but strong side effects occur and sufficient effects are not achieved
Solution Approach 1:
The patent utilizes the natural phenomenon of cell death that occurs when cells are cultured to high density without passage. Instead of viewing this as waste or harmful byproduct, the invention converts it into a beneficial source of cytocidal active substances that can treat cancer, transforming a potentially harmful situation into a therapeutic opportunity
Solution Approach 2:
The malignant tumor cells themselves produce the cytocidal active substances needed for treatment. The cells' natural metabolic processes and death mechanisms generate the therapeutic agents, eliminating the need for external synthetic drugs and their associated side effects
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method allows for the inexpensive, convenient, and rapid production of a cell extract component with cytocidal activity that is effective against various cancers, including those resistant to other anticancer agents, without the need for genetic engineering or additional physiologically active substances.
Implementation Method 1
malignant tumor-derived cells produce a substance which causes themselves to die even in the case where the cells are cultured in a culture medium at least until a cell density reaches a level that does not pose an obstacle for passage, and then the culture medium is replaced with a physiological buffer salt solution (containing no nutrient and/or energy source)
Implementation Method 2
recovering the physiological buffer salt solution after the time at which death of the malignant tumor-derived cells is observed in the physiological buffer salt solution in morphological aspect of said cells
Data Source
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AI summary
Provided is a method or the like for producing a composition exhibiting cytocidal activity. This method for producing a composition exhibiting cytocidal activity comprises: culturing malignant tumor-derived cells in a culture medium at least until the cell density reaches a level that does not pose a problem for transfer; replacing, after culturing, the culture medium with a physiological buffer salt solution; and recovering the physiological buffer salt solution after death of the malignant tumor-derived cells is observed morphologically in the physiological buffer salt solution.