Removable Stromal Cell Layer Vessel for Primary Cancer Culture
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Solution Overview
Problem
Existing methods for primary culture of cancer cells from patient tumor tissue often result in culture failure and yield results that do not accurately reflect in vivo behaviors due to the use of serum-free media with added growth factors, leading to altered signaling pathways.
Innovation Solution
A cell-containing vessel with a cell culture surface and two distinct cell layers: a first layer containing cells and a removable second layer of stroma-forming cells, using a general cell culture medium without growth factors or inhibitors, allowing for long-term culture of primary cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If serum-free medium with growth factors and inhibitors is used for primary culture, then cell survival and proliferation are improved, but the signaling pathways are altered and do not reflect in vivo behavior
Solution Approach 1:
The invention extracts and removes growth factors and inhibitors from the culture medium, using only serum-containing medium to maintain cell viability while preserving natural signaling pathways and in vivo behavior characteristics
Solution Approach 2:
The invention changes the medium composition parameters by eliminating artificial additives (growth factors and inhibitors) and relying on natural serum components, thereby shifting the culture conditions from optimized in vitro growth to physiologically relevant in vivo mimicry
2Stability of the object's composition
If established cell lines are used for cancer research, then experimental consistency is improved, but the properties change from original patient tumor tissue
Solution Approach 1:
The invention performs preliminary isolation of primary cancer cells from patient tumor tissue before culture, preserving the original tissue properties and patient-specific characteristics while establishing a stable culture system for consistent experimentation
Solution Approach 2:
The invention changes the cell source parameter from established cell lines to primary patient-derived cells, and adjusts culture conditions to maintain the biological fidelity of original tumor tissue properties
3Reliability
If primary culture methods with complex medium supplements are used, then cell culture success rate is improved, but the cost increases and signaling pathways are altered
Solution Approach 1:
The invention extracts and eliminates complex medium supplements (growth factors and inhibitors) from the culture system, simplifying the medium composition to serum-containing basal medium while maintaining culture success through natural serum-based cell support mechanisms
Solution Approach 2:
The invention uses conventional, inexpensive serum-containing culture medium instead of expensive specialized serum-free media with multiple expensive growth factors and inhibitors, making the culture system more accessible and cost-effective
Data Source
AI summary
The cell-containing vessel includes a cell culture vessel, a cell culture medium contained in the cell culture vessel, a first cell layer formed on a cell culture surface of the cell culture vessel, and a second cell layer that contains stroma-forming cells and is formed on the first cell layer. The second cell layer is removable from the first cell layer.