NurExone ExoPTEN data shows higher myelin markers in spinal cord injury model
NurExone Biologic Inc. released preclinical data showing ExoPTEN increases myelin markers in spinal cord injury models. The therapy showed statistically significant improvements in MBP-positive cells. The company also announced an investor awareness agreement with bullVestor Medien GmbH.

*this image is generated using AI for illustrative purposes only.
NurExone Biologic Inc. (TSXV: NRX, OTCQB: NRXBF, FSE: J90) reported new preclinical tissue-analysis data supporting the potential neuroprotective effect of its lead candidate, ExoPTEN, in an animal model of acute spinal cord injury. The results provide biological evidence for the functional recovery previously observed in treated animals.
Preclinical Tissue Analysis
The company evaluated spinal cord tissue from animals treated with ExoPTEN two months after injury. Researchers assessed biological markers associated with neurons and supporting structures across three areas: the injury site itself, and regions rostral and caudal to the injury.
Key findings include:
- Significantly higher numbers of cells positive for Myelin Basic Protein (MBP) in ExoPTEN-treated animals compared to controls.
- MBP is a key component of the protective coating surrounding nerve fibers.
- Differences were statistically significant in both the rostral region (p=0.01) and caudal region (p=0.04).
The analysis also examined NeuN, a marker for neuronal nuclei, and NF200, a marker for neuronal axons.
What the Numbers Show
The statistical significance of the MBP marker increase in both regions flanking the injury site suggests a localized preservation of neural insulation. This tissue-level finding aligns with the company's earlier report of improved functional recovery, offering a potential mechanistic explanation for the observed efficacy.
Investor Awareness Engagement
NurExone entered into an advertising and investor awareness agreement with bullVestor Medien GmbH. The agreement commences on August 10, 2026, and runs on a flexible month-to-month basis.
| Term | Detail |
|---|---|
| Base Fee | C$2,500 per month |
| Optional Campaigns | Up to C$480,000 aggregate |
| Campaign Range | C$20,000 to C$60,000 per campaign |
| Regions | Austria, Germany, Switzerland |
The engagement is subject to acceptance by the TSX Venture Exchange. No optional campaigns will commence without written approval from the company and required TSXV acceptance.
About ExoPTEN
ExoPTEN is an exosome-based therapeutic candidate using bone marrow-derived naïve exosomes loaded with proprietary siRNA targeting PTEN. It is being developed as a minimally invasive approach for recovery following nerve injury.
What is the projected timeline for initiating human clinical trials for ExoPTEN following these preclinical results?
How might the statistical significance of MBP preservation in rostral and caudal regions influence the design of upcoming efficacy endpoints in clinical studies?
What are the potential regulatory hurdles or specific requirements from health authorities for exosome-based siRNA therapies in spinal cord injury?



























