Microwave Preparation of Tumor-Derived Microparticles
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Solution Overview
Problem
Current methods for preparing tumor-derived microparticles (TMPs) are complex, costly, and inefficient, with biosafety concerns and uncertain efficacy in tumor treatment, leading to prolonged production times and increased economic burdens on patients.
Innovation Solution
A method involving microwave heating of Lewis lung carcinoma cells followed by centrifugation to obtain tumor-derived microparticles, simplifying the preparation process and improving yield and biosafety while retaining bioactive molecules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional centrifugation methods are used to prepare tumor-derived microparticles, then separation and purification can be achieved, but the production time is prolonged and costs are increased
Solution Approach 1:
The patent replaces the conventional mechanical centrifugation system with a microwave heating system. By applying microwave energy to tumor cells, the method induces rapid microparticle release without requiring extended centrifugation processes, thereby significantly reducing production time while maintaining separation and purification quality through subsequent streamlined centrifugation steps.
Solution Approach 2:
The patent changes the physical parameters of cell treatment from mechanical force (centrifugation) to thermal energy (microwave heating). By controlling microwave power and heating time, the method accelerates microparticle secretion and release, transforming a time-consuming mechanical separation process into a faster thermal induction process followed by brief centrifugation.
2Reliability
If complex modification treatments are applied to enhance tumor efficacy, then therapeutic effect is improved, but preparation complexity and costs increase
Solution Approach 1:
The patent extracts and utilizes the inherent bioactive molecules and therapeutic properties already present in tumor-derived microparticles. By using microwave-induced natural secretion rather than complex external modifications, the method obtains tumor efficacy through the microparticles' intrinsic characteristics, eliminating the need for complicated genetic engineering, chemical conjugation, or other complex modification treatments.
Solution Approach 2:
The patent enables tumor cells to self-produce therapeutic microparticles through microwave-induced stress response. The cells naturally secrete microparticles containing tumor-associated antigens and bioactive molecules that provide therapeutic effects, eliminating the need for external modification systems and reducing preparation complexity while maintaining tumor efficacy.
3Reliability
If natural secretion methods are used, then biosafety is maintained, but production yield is insufficient
Solution Approach 1:
The patent applies microwave heating as a preliminary action to tumor cells before collection. This pre-treatment induces stress responses that trigger enhanced natural secretion of microparticles, thereby increasing production yield while maintaining biosafety through the natural secretion pathway. The microwave energy serves as a controlled stimulus that accelerates and amplifies the cells' inherent microparticle production capability.
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
The microwave-based method significantly reduces production time and costs, enhances TMP yield, ensures biosafety, and maintains biological functions, with potential for tumor inhibition and immune response stimulation, offering a novel drug encapsulating platform for tumor treatment.
Implementation Method 1
step 2, microwave heating treatment is performed on the cultured cells obtained in step 1, with a microwave power of 350-700 watts (W) and a heating time of 10-20 seconds (s)
Implementation Method 2
step 4, a supernatant of cells is collected from the culture dish cultured in step 3, and multiple centrifugation treatments are performed on the supernatant by using a density gradient centrifugation method
Data Source
AI summary
A method for preparing a tumor-derived microparticle by a microwave includes the following steps: step 1, Lewis lung carcinoma (LLC) of a lung adenocarcinoma cell line is taken and then the LCC is cultured in a culture dish for more than 24 hours (h) to obtain cultured cells; step 2, microwave heating treatment is performed on the cultured cells obtained in step 1 to obtain treated cells; step 3, the treated cells obtained in step 2 are placed into a constant temperature incubator for cultivation for 24 h; and step 4, a supernatant of cells is collected from the culture dish cultured in step 3, and multiple centrifugation treatments is performed on the supernatant by using a density gradient centrifugation method to obtain a precipitate which is the tumor-derived microparticle TMPMW.