Truncated BMP Peptides and Protease Composition for Osteogenesis
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Solution Overview
Problem
Current compositions and methods for using bone morphogenic proteins (BMPs) do not effectively utilize truncated peptides with osteoinductive, chondroinductive, or ligament/tendon differentiating activities, particularly when combined with proteases, to enhance cellular differentiation and growth factor activity.
Innovation Solution
A composition comprising an isolated peptide with an amino acid sequence of 137 residues or less, specifically designed to include at least one protease such as collagenase, dispase, trypsin, or MMP-13, to promote osteogenesis, chondrogenesis, or ligament/tendon differentiation by enhancing the activity of BMPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full-length BMPs are used, then osteoinductive and chondroinductive activities are achieved, but the complexity of the protein structure increases manufacturing difficulty
Solution Approach 1:
The BMP protein is divided into functional segments, specifically utilizing truncated peptides (137 residues or less) that contain the essential osteoinductive and chondroinductive domains while removing non-essential portions. This segmentation maintains biological activity while simplifying manufacturing processes
Solution Approach 2:
The essential functional domains are extracted from the full-length BMP protein to create truncated peptides. These extracted peptide sequences (SEQ ID NO: 20-28) retain the core osteoinductive and chondroinductive activities without the complexity of the complete protein structure
2Ease of manufacture
If truncated BMP peptides are used, then manufacturing complexity is reduced, but growth factor activity may be insufficient without protease enhancement
Solution Approach 1:
Proteases are introduced as intermediary enzymes that process the truncated BMP peptides to generate fully active growth factors. The proteases cleave the truncated peptides at specific sites to produce mature, bioactive BMP molecules, bridging the gap between simplified peptide structures and full biological activity
Solution Approach 2:
The chemical structure of the truncated peptides is modified through proteolytic processing by added proteases. This parameter change transforms the truncated peptide sequence into the active mature BMP form, enhancing growth factor activity while maintaining manufacturing advantages
3Reliability
If proteases are added to enhance BMP activity, then cellular differentiation is improved, but the composition complexity increases
Solution Approach 1:
The truncated BMP peptides and proteases are combined into a single composition that works synergistically. The proteases process the peptides in situ to generate active BMP, merging the benefits of simplified peptide structure with the activity-enhancing effects of proteolytic processing in one integrated formulation
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 combination of truncated BMP peptides with specific proteases significantly increases alkaline phosphatase activity in cells, demonstrating enhanced osteoinductive, chondroinductive, and ligament/tendon differentiating capabilities compared to unmodified BMPs.
Implementation Method 1
A composition comprising an isolated peptide of 137 residues or less... and at least one protease
Data Source
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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.