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Updated: Aug 13, 2026
11:11
Construction and Characterization of a Novel Vocal Fold Bioreactor
Published on: August 1, 2014
Placental-Derived Connective Tissue Matrix: Cytokine Array Analysis and Pilot Study of Vocal Fold Injection During
Gabriel Sobczak1, Patrick Finnegan1, Samuel Halum2
1Indiana University School of Medicine Department of Otolaryngology-Head and Neck Surgery, 1130 W. Michigan St., Fesler Hall, Suite 400, Indianapolis, IN, 46202.
Journal of Voice : Official Journal of the Voice Foundation
|August 11, 2026
Summary
Placental-derived connective tissue matrix (pd-CTM) contains proteins that support wound healing. This study profiled pd-CTM, finding it rich in anti-inflammatory and anti-fibrotic factors, suggesting potential for laryngeal surgery.
Area of Science:
- Otolaryngology
- Regenerative Medicine
- Biomaterials Science
Background:
- Placental-derived connective tissue matrix (pd-CTM) contains extracellular proteins and bioactive factors.
- The molecular profile of pd-CTM in laryngology is not well-characterized.
- pd-CTM may modulate inflammation, fibrosis, and angiogenesis.
Purpose of the Study:
- To quantify key wound-healing mediators in pd-CTM using proteomic methods.
- To describe preliminary clinical observations following pd-CTM injection during microphonosurgical excision of benign true vocal fold lesions.
Main Methods:
- Proteomic analysis (multiplex cytokine array, ELISA) to determine protein concentrations in pd-CTM.
- Review of early postoperative outcomes in three patients receiving adjuvant pd-CTM injection after microphonosurgical excision.
Main Results:
- pd-CTM exhibited moderate to high concentrations of anti-inflammatory (e.g., IL-1ra), anti-fibrotic (e.g., TIMP-2, HGF, TGF-β3), and angiogenic (e.g., VEGF, EGF) factors.
- Low concentrations of IL-6, IL-10, GM-CSF, and TGF-β1 were detected in pd-CTM.
- Pilot clinical cohort showed no adverse events, with early postoperative videostroboscopy revealing symmetric vocal fold waveforms.
Conclusions:
- This study presents a novel cytokine and protein profile for pd-CTM.
- The composition of pd-CTM supports anti-inflammatory, anti-fibrotic, and pro-angiogenic activities.
- Findings provide a mechanistic basis for further research and clinical trials of pd-CTM in laryngeal surgery.
