BMP Peptides Enhanced by Protease Cleavage

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Solution Overview

Problem

Current methods for using bone morphogenic proteins (BMPs) are limited in their ability to enhance osteoinductive, chondroinductive, and ligament/tendon differentiating activities, as they often require specific sequences and combinations that are not effectively achieved with existing proteases and growth factor compositions.

Innovation Solution

The development of isolated peptides and fusion proteins with specific amino acid sequences, combined with proteases like collagenase, dispase, and trypsin, to enhance the activity of BMPs, promoting osteogenesis, chondrogenesis, and ligament/tendon genesis by interacting with cellular receptors and signaling pathways.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If unmodified BMPs are used, then the treatment is simple, but the osteoinductive, chondroinductive, and ligament/tendon differentiating activities are limited

Engineering Contradiction:
Improveosteoinductive activityVSAvoidcomposition complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies composite materials by combining BMPs with specific proteases (collagenase, dispase, trypsin) and isolated peptides to create a composite composition that enhances osteoinductive activity. This composite approach allows the proteases to cleave the BMPs at specific sites, generating active fragments that work synergistically to improve differentiation activity while maintaining a manageable composition structure.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies segmentation by using proteases to cleave the BMP polypeptide chain into specific fragments or domains. This segmentation releases bioactive peptides from the full-length BMP, creating smaller, more active units that can more effectively interact with cellular receptors and signaling pathways, thereby enhancing the biological activity.

Inventive Principle:
Principle #1Segmentation

2Reliability

If specific proteases and growth factor compositions are used, then the differentiating activity is enhanced, but the composition complexity increases

Engineering Contradiction:
Improvechondroinductive activityVSAvoidprotease combination complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by selecting proteases (collagenase, dispase, trypsin) that can perform multiple functions: they cleave BMPs at specific sites, generate bioactive fragments, and potentially interact with other components in the composition. These proteases serve as multi-functional catalysts that enhance chondroinductive activity while their established biochemical properties help manage the complexity of the composition.

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

3Productivity

If truncated BMP peptides are used, then the production efficiency is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvepeptide production efficiencyVSAvoidamino acid sequence precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent applies parameter changes by modifying the amino acid sequence parameters of BMPs through proteolytic cleavage. The proteases change the peptide chain length and sequence by cleaving at specific amino acid residues, generating truncated peptides with precise N- or C-terminal endings. This parameter change approach allows production of active fragments without requiring de novo synthesis of each precise sequence.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies intermediary by using proteases as mediator enzymes that facilitate the precise generation of truncated BMP peptides. Rather than directly synthesizing precise peptide sequences, the proteases act as intermediaries that cleave full-length BMPs at specific sites, indirectly producing the desired truncated peptides with high sequence precision through enzyme-catalyzed specificity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 described compositions significantly increase alkaline phosphatase activity and promote cellular differentiation, leading to enhanced osteoinductive, chondroinductive, and ligament/tendon differentiating activities compared to unmodified BMPs, with improved efficacy when used with specific proteases.

Implementation Method 1

The invention relates to compositions including a protease and a growth factor comprising a bone morphogenic protein (BMP) or a variant thereof

Methodology Applied
Scientific EffectProteolysis: Hydrolysis

Implementation Method 2

promoting osteogenesis, chondrogenesis, and ligament/tendon genesis by interacting with cellular receptors and signaling pathways

Methodology Applied
Scientific EffectSignal transduction:

Data Source

PatentUS11078248B2BMP peptides and methods of use
Publication Date: 2021.08.03 LIFENET HEALTH
  • US11078248B2 patent drawing
  • US11078248B2 patent drawing
  • US11078248B2 patent drawing

AI summary

The invention relates to truncated growth factors and variants thereof. The invention also relates to methods of making and using the truncated growth factors. The invention further relates to compositions including a protease and a growth factor comprising a bone morphogenic protein (BMP) or a variant thereof. The invention also relates to methods of using the composition.