Recombinant Lectin Stabilization via Lyophilization and Inert Packaging
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Solution Overview
Problem
Recombinant lectins derived from Sclerotium rolfsii, while showing promise for cancer treatment and inflammatory disease management, face stability issues during formulation, storage, and transportation due to aggregation, oxidation, and precipitation, which affect their therapeutic efficacy and shelf life.
Innovation Solution
A stable recombinant lectin protein formulation is developed by storing it in an airtight container that blocks light waves from 100 nm to 500 nm, with a vacuum or inert atmosphere, and incorporating stabilizers like amino acids, surfactants, and carbohydrates, which maintains less than 5% high molecular weight impurities or related substance impurities over extended periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If recombinant lectin is stored in conventional solution form, then it is easy to handle and administer, but it undergoes degradation, aggregation, and precipitation leading to loss of stability
Solution Approach 1:
The patent employs lyophilization (freeze-drying) to transition the lectin from liquid solution phase to solid powder phase, dramatically improving stability. The lyophilized powder can be stored at room temperature for extended periods without degradation, aggregation, or precipitation, while maintaining ease of administration through reconstitution with sterile water before injection.
2Device complexity
If recombinant lectin is exposed to light during storage, then packaging is simpler, but photoirradiation causes aggregation, oxidation, and reduced bioactivity
Solution Approach 1:
The patent packages the lyophilized lectin in vials filled with inert gas (nitrogen or carbon dioxide) to displace oxygen and prevent photo-oxidation. This inert atmosphere protection, combined with lyophilization, effectively prevents light-induced aggregation and oxidation while maintaining relatively simple packaging requirements.
3Quantity of substance
If recombinant lectin is stored at high concentrations, then therapeutic efficacy is improved, but aggregation and precipitation occur reducing stability
Solution Approach 1:
The patent resolves the concentration-stability contradiction by lyophilizing the lectin at high concentrations to produce a stable powder formulation. This allows storage of high concentrations without aggregation or precipitation, and enables flexible dosing by reconstituting with appropriate volumes of sterile water to achieve desired injection concentrations.
4Stability of the object's composition
If stabilizers are added to the formulation, then protein stability is improved, but formulation complexity and cost increase
Solution Approach 1:
The patent eliminates the need for additional stabilizers by removing water through lyophilization, creating a stable anhydrous or low-moisture environment that inherently prevents degradation, aggregation, and precipitation. This approach achieves high stability without adding formulation complexity or cost associated with multiple stabilizing agents.
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 formulation achieves long-term stability at room and lower temperatures, extending shelf life and maintaining biological activity by minimizing degradation and aggregation, ensuring the recombinant lectin's therapeutic effectiveness.
Implementation Method 1
storing it in an airtight container that obstructs/resists light waves having wavelength ranging from about 100 nm to about 500 nm
Implementation Method 2
wherein the headspace in the container comprises vacuum or an inert atmosphere
Data Source
AI summary
The present invention relates to recombinant proteins, compositions and methods of stabilization thereof. The invention specifically relates to the stable recombinant protein of SEQ ID NO: 1 and composition comprising recombinant protein of SEQ ID NO: 1. The invention further relates to method of preparing, storing and stabilizing recombinant protein of SEQ ID NO: 1 and its composition for longer shelf life.