SERPIN Peptides LRP1 Binding Stability

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Solution Overview

Problem

Current treatments for conditions associated with serine protease inhibitors (SERPINs) and low-density lipoprotein receptor-related protein 1 (LRP1) lack effective prophylactic and therapeutic options, particularly in addressing inflammatory and regenerative needs.

Innovation Solution

Development of SERPIN peptides with specific amino acid sequences that bind to LRP1, enhancing anti-inflammatory and regenerative effects by stabilizing the peptides and improving their affinity to LRP1, thereby modulating immune responses and promoting tissue repair.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If SERPIN peptides are developed to bind to LRP1, then anti-inflammatory and regenerative effects are enhanced, but peptide stability and affinity to LRP1 require improvement

Engineering Contradiction:
Improveanti-inflammatory and regenerative effectsVSAvoidpeptide stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent modifies peptide sequences by changing specific amino acid residues to optimize both stability and LRP1 binding affinity. Chemical modifications such as acetylation, amidation, and incorporation of non-natural amino acids are employed to enhance peptide stability while maintaining or improving biological activity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates composite peptide structures by combining multiple functional domains within a single peptide molecule. These composite peptides include LRP1-binding motifs along with sequences that confer stability, resulting in molecules that simultaneously achieve enhanced stability and improved target binding.

Inventive Principle:
Principle #40Composite materials

2Reliability

If SERPIN peptides are designed with specific amino acid sequences, then affinity to LRP1 is improved, but peptide complexity increases

Engineering Contradiction:
Improveaffinity to LRP1VSAvoidpeptide sequence complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the essential LRP1-binding motif from full-length SERPIN proteins, creating minimized peptide sequences that retain binding capability while reducing complexity. This extraction approach identifies the core functional elements necessary for LRP1 interaction without requiring the entire parent protein structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent divides complex SERPIN proteins into smaller functional segments or domains, specifically isolating the LRP1-binding region. This segmentation allows for the design of simpler peptides that focus on a single functional interaction while maintaining high affinity for the target receptor.

Inventive Principle:
Principle #1Segmentation

3Reliability

If SERPIN peptides are used for treating various conditions, then therapeutic effects are achieved, but lack of effective prophylactic and therapeutic options exists

Engineering Contradiction:
Improvetherapeutic effectsVSAvoidprophylactic and therapeutic options
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent designs SERPIN peptides with universal applicability across multiple disease conditions by targeting the conserved LRP1 receptor that is involved in diverse biological processes. The peptides demonstrate multi-functionality by providing both prophylactic and therapeutic effects in inflammatory, neurodegenerative, and infectious diseases through a single mechanism of action.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 SERPIN peptides demonstrate significant anti-inflammatory, analgesic, and regenerative properties, effectively treating conditions such as neuropathic pain, neurodegenerative diseases, acute lung injury, and infectious diseases by targeting LRP1-mediated signaling pathways.

Implementation Method 1

the SERPIN peptide binds to low-density lipoprotein receptor related protein (LRP1) at the newly exposed short peptide motif

Methodology Applied
Scientific EffectProtein-protein binding:

Data Source

PatentUS20240261364A1Peptides and methods of using the same
Publication Date: 2024.08.08 SERPIN PHARMA LLC
  • US20240261364A1 patent drawing
  • US20240261364A1 patent drawing
  • US20240261364A1 patent drawing

AI summary

Disclosed herein are SERPIN peptides, and analogues and derivatives thereof, and uses of the same for treating various conditions associated with LRP1 mediation or TSLP-mediation.