Bovine Sperm Sorting Composition Using TLR7/8-Mediated Motility Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current sperm sorting methods for bovine sex control, such as density gradient centrifugation, electrophoresis, protein immunological sorting, and flow cytometry, suffer from inefficiencies, high costs, and reduced sperm fertility, making them unsuitable for large-scale production.
Innovation Solution
A bovine sex-sorted sperm sorting solution mediated by a small molecule compound, comprising sodium chloride, potassium chloride, calcium chloride dihydrate, sodium dihydrogen phosphate, glucose, sodium pyruvate, sodium bicarbonate, penicillin-streptomycin, phenol red, creatine, and a pyrido[3,2-d] pyrimidine-based TLR7&8 dual agonist (24e drug), which selectively inhibits X sperm motility while preserving Y sperm viability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If flow cytometry sorting is used for bovine sperm sex sorting, then sorting accuracy is improved, but sperm motility and acrosome integrity are significantly decreased
Solution Approach 1:
The patent introduces small molecule compounds (TLR7/8 agonists) as intermediaries that selectively bind to receptors on X-chromosome sperm surfaces. These compounds act as mediators to differentiate and separate X and Y sperm based on their differential receptor expression, achieving accurate sorting without the mechanical stress and high costs of flow cytometry while preserving sperm integrity and fertility
Solution Approach 2:
The patent changes the chemical parameter of the sorting solution by incorporating specific small molecule compounds (TLR7/8 agonists) at optimized concentrations. This chemical parameter change enables selective interaction with X-sperm surface receptors, allowing differentiation and separation based on molecular recognition rather than physical forces, thus maintaining sperm viability while achieving sorting accuracy
2Adaptability or versatility
If flow cytometry sorting is used for bovine sperm sex sorting, then sorting capability is improved, but device cost and operational complexity are increased
Solution Approach 1:
The patent replaces expensive, complex flow cytometry equipment with a simple chemical solution containing small molecule compounds. This solution can be prepared at low cost and used in standard laboratory settings without specialized equipment, making the technology accessible to individual farms and laboratories while maintaining sorting capability
Solution Approach 2:
The patent substitutes the mechanical and optical complexity of flow cytometry with a biochemical approach. Instead of using complex instruments to detect and sort sperm based on physical properties, the method uses chemical compounds that naturally differentiate X and Y sperm through molecular recognition, enabling sorting with simple incubation and separation steps
3Productivity
If conventional sperm sorting methods are used, then sorting speed is improved, but sperm damage and fertility loss are increased
Solution Approach 1:
The patent optimizes the chemical parameters of the sorting solution, including pH, ionic composition, and small molecule compound concentration, to create conditions that preserve sperm viability. The solution contains protective agents and is formulated to minimize osmotic stress and chemical damage, enabling fast sorting without compromising sperm integrity or fertility
Solution Approach 2:
The patent incorporates protective substances in the sorting solution that cushion sperm against potential damage during the sorting process. These protective agents are added beforehand to the solution, providing a protective environment that reduces mechanical and chemical stress on sperm while maintaining sorting efficiency
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 efficient, high-conception-rate sperm sorting with minimal sperm damage, requiring less complex techniques and lower costs, achieving a clear stratification of X and Y sperm.
Implementation Method 1
The 24e drug is a pyrido[3,2-d] pyrimidine-based TLR7&8 dual agonist
Implementation Method 2
The sperm sorting protection solution consists of sodium chloride, potassium chloride, calcium chloride dihydrate, sodium dihydrogen phosphate, glucose, sodium pyruvate, sodium bicarbonate
Data Source
AI summary
The present invention provides a bovine sex-sorted sperm sorting solution mediated by a small molecule compound and its application. The sperm sorting solution comprises a sperm sorting protection solution and a sex control functional component. The sperm sorting protection solution contains sodium chloride, potassium chloride, calcium chloride dihydrate, sodium dihydrogen phosphate, glucose, sodium pyruvate, sodium bicarbonate, penicillin-streptomycin, and phenol red. The sex control functional component includes creatine and a 24e drug. The concentration of creatine is 450 μM-550 μM, and the concentration of the 24e drug is 0.27 μM-0.33 μM. The 24e drug is a pyrido [3,2-d]pyrimidine-based TLR7&8 dual agonist. The present invention can meet the large demand for sex-sorted semen in production. Moreover, the sorting process is carried out under the suitable conditions for sperm and does not require complex treatment of sperm. It takes less time for sorting and causes less damage to sperm.