Captureable Platinum Chemotherapy for Selective Bloodstream Removal
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Solution Overview
Problem
Chemotherapy agents like platinum-based drugs and anthracyclines effectively kill cancer cells but cause severe side effects on non-targeted tissues, limiting their use due to adverse effects such as ototoxicity, cardiotoxicity, nephrotoxicity, hepatotoxicity, and neurotoxicity.
Innovation Solution
Functionalized chemotherapy agents with reactive groups, such as azide or alkyne, are modified to form covalent bonds with capture molecules on substrates like polymers or textiles, allowing for selective removal using 'click chemistry' to minimize off-target effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemotherapy agents are administered to treat cancer, then tumor treatment effectiveness is improved, but severe side effects on non-targeted tissues occur
Solution Approach 1:
The chemotherapy agent is divided into two functional parts: a captureable moiety that can be selectively captured by capture substrates, and a pharmacologically active moiety that provides the therapeutic effect. This segmentation allows the active agent to reach the tumor while the captureable part can be removed from circulation to prevent off-target effects.
Solution Approach 2:
The harmful chemotherapy agent is extracted from the bloodstream using capture substrates functionalized with capture molecules. The capture substrates selectively bind to the captureable moieties of the chemotherapy agents in circulation, removing them from the system before they can damage non-targeted tissues.
2Productivity
If chemotherapy agents are used at higher doses to improve treatment efficacy, then tumor killing effectiveness increases, but dose-limiting side effects worsen
Solution Approach 1:
Capture substrates act as intermediary agents that mediate between the administered chemotherapy agents and the patient's body. These substrates selectively intercept and remove the chemotherapy agents from circulation, allowing higher doses to be administered safely by preventing the accumulation of toxic levels in non-targeted tissues.
3Object-affected harmful factors
If capture substrates are introduced to remove chemotherapy agents, then off-target side effects are reduced, but system complexity increases
Solution Approach 1:
The chemotherapy agents are modified by changing their chemical parameters to include captureable moieties with specific functional groups. This parameter change enables selective recognition and binding by capture substrates, providing a mechanism for controlled removal without requiring complex external control systems.
Solution Approach 2:
The chemotherapy agents themselves carry the captureable moieties that enable their own capture and removal. The system is self-service in the sense that the drug molecules contain built-in recognition elements that allow them to be selectively identified and removed by capture substrates without requiring external intervention or complex control mechanisms.
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 solution enables rapid and selective removal of chemotherapy agents from the patient's bloodstream, reducing off-target side effects and enhancing the safety profile of these drugs.
Implementation Method 1
a reactive group capable of bonding to a capture molecule on a capture substrate
Implementation Method 2
the capture substrate includes a strained alkyne
Data Source
AI summary
A chemotherapy agent comprising a chemotherapy group and a ligand secured to the chemotherapy group is disclosed, the ligand comprising a reactive group capable of bonding to a capture substrate. A method of removing chemotherapy agents from a patient is disclosed, the method comprising providing a chemotherapy agent containing a reactive group; providing a capture substrate in contact with a patient's bloodstream; administering the chemotherapy agent to the patient; and sequestering the chemotherapy agent on the capture substrate. A system for removing chemotherapy agents is also disclosed.