Source 1primary paper2026MED
Toolkit/BMP-2_pc
BMP-2_pc
Also known as: recombinant BMP-2 conjugated via a coumarin-based 405 nm-cleavable linker
Taxonomy: Mechanism Branch / Architecture. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
BMP-2_pc is a recombinant BMP-2 construct linked through a coumarin-based 405 nm-photocleavable linker and covalently incorporated into an enzymatically crosslinked collagen-containing hydrogel composite. Blue-light stimulation triggers stepwise release of BMP-2 from the material.
Usefulness & Problems
Why this is useful
This construct provides externally controlled, visible-light-triggered release of BMP-2 from a hydrogel matrix rather than passive diffusion alone. It is useful where temporally staged delivery of an osteogenic growth factor from a biomaterial is desired.
Problem solved
BMP-2_pc addresses the problem of achieving on-demand release of tethered BMP-2 from an enzymatically crosslinked collagen-containing hydrogel while maintaining linker compatibility with the crosslinking chemistry. The reported system specifically enables pulse-wise release under blue-light stimulation.
Taxonomy & Function
Primary hierarchy
Mechanism Branch
Architecture: A reusable architecture pattern for arranging parts into an engineered system.
Techniques
No technique tags yet.
Target processes
No target processes tagged yet.
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: actuatorpayload type: growth factorrelease mode: photocleavageswitch architecture: cleavagetrigger wavelength nm: 405
The construct uses a coumarin-based linker that is cleavable with 405 nm light and is incorporated into an enzymatically crosslinked collagen-containing hydrogel composite. Microbial transglutaminase was used for crosslinking, and this process was reported to preserve coumarin integrity.
The supplied evidence is limited to linker compatibility during microbial transglutaminase crosslinking and release behavior under blue light. The evidence provided here does not specify molecular construct architecture beyond the coumarin linker, nor does it establish independent replication or broad validation across models.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
Microbial transglutaminase crosslinking preserved coumarin integrity.
while mTG crosslinking preserved coumarin integrity
Microbial transglutaminase crosslinking preserved coumarin integrity.
while mTG crosslinking preserved coumarin integrity
Microbial transglutaminase crosslinking preserved coumarin integrity.
while mTG crosslinking preserved coumarin integrity
Microbial transglutaminase crosslinking preserved coumarin integrity.
while mTG crosslinking preserved coumarin integrity
Microbial transglutaminase crosslinking preserved coumarin integrity.
while mTG crosslinking preserved coumarin integrity
Microbial transglutaminase crosslinking preserved coumarin integrity.
while mTG crosslinking preserved coumarin integrity
Microbial transglutaminase crosslinking preserved coumarin integrity.
while mTG crosslinking preserved coumarin integrity
Blue-light stimulation induced stepwise BMP-2 release from the composite, with about 23% release per pulse and 60% cumulative release at 72 hours.
Blue-light stimulation induced stepwise BMP-2 release (23% per pulse; 60% cumulative at 72 h)
BMP-2 release per pulse 23 %cumulative BMP-2 release 60 %
Blue-light stimulation induced stepwise BMP-2 release from the composite, with about 23% release per pulse and 60% cumulative release at 72 hours.
Blue-light stimulation induced stepwise BMP-2 release (23% per pulse; 60% cumulative at 72 h)
BMP-2 release per pulse 23 %cumulative BMP-2 release 60 %
Blue-light stimulation induced stepwise BMP-2 release from the composite, with about 23% release per pulse and 60% cumulative release at 72 hours.
Blue-light stimulation induced stepwise BMP-2 release (23% per pulse; 60% cumulative at 72 h)
BMP-2 release per pulse 23 %cumulative BMP-2 release 60 %
Blue-light stimulation induced stepwise BMP-2 release from the composite, with about 23% release per pulse and 60% cumulative release at 72 hours.
Blue-light stimulation induced stepwise BMP-2 release (23% per pulse; 60% cumulative at 72 h)
BMP-2 release per pulse 23 %cumulative BMP-2 release 60 %
Blue-light stimulation induced stepwise BMP-2 release from the composite, with about 23% release per pulse and 60% cumulative release at 72 hours.
Blue-light stimulation induced stepwise BMP-2 release (23% per pulse; 60% cumulative at 72 h)
BMP-2 release per pulse 23 %cumulative BMP-2 release 60 %
Blue-light stimulation induced stepwise BMP-2 release from the composite, with about 23% release per pulse and 60% cumulative release at 72 hours.
Blue-light stimulation induced stepwise BMP-2 release (23% per pulse; 60% cumulative at 72 h)
BMP-2 release per pulse 23 %cumulative BMP-2 release 60 %
Blue-light stimulation induced stepwise BMP-2 release from the composite, with about 23% release per pulse and 60% cumulative release at 72 hours.
Blue-light stimulation induced stepwise BMP-2 release (23% per pulse; 60% cumulative at 72 h)
BMP-2 release per pulse 23 %cumulative BMP-2 release 60 %
Approval Evidence
1 source2 linked approval claimsfirst-pass slug bmp-2-pc
Recombinant BMP-2 was conjugated via a coumarin-based 405 nm-cleavable linker (BMP-2_pc) and covalently tethered to the collagen network.
Source:
compatibility resultsupports
Microbial transglutaminase crosslinking preserved coumarin integrity.
while mTG crosslinking preserved coumarin integrity
Source:
mechanistic resultsupports
Blue-light stimulation induced stepwise BMP-2 release from the composite, with about 23% release per pulse and 60% cumulative release at 72 hours.
Blue-light stimulation induced stepwise BMP-2 release (23% per pulse; 60% cumulative at 72 h)
Source:
Comparisons
Source-backed strengths
Microbial transglutaminase crosslinking was reported to preserve coumarin integrity, supporting compatibility between the photocleavable linker and enzymatic network formation. Blue-light stimulation produced stepwise BMP-2 release, with about 23% release per pulse and 60% cumulative release at 72 hours.
Compared with alkynyl-functionalized photocleavable linker
BMP-2_pc and alkynyl-functionalized photocleavable linker address a similar problem space.
Shared frame: same top-level item type; shared mechanisms: photocleavage
Strengths here: looks easier to implement in practice.
Compared with NP-cIPTG
BMP-2_pc and NP-cIPTG address a similar problem space.
Shared frame: same top-level item type; shared mechanisms: photocleavage
Strengths here: looks easier to implement in practice.
BMP-2_pc and randomly attached cage compounds on silencing oligonucleotides address a similar problem space.
Shared frame: same top-level item type; shared mechanisms: photocleavage
Strengths here: looks easier to implement in practice.
Ranked Citations
- 1.