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Efficient decellularization of human fetal kidneys through optimized SDS exposure.
Mohamad Hossein Khosropanah1, Parham Torabinavid1, Ashkan Azimzadeh1
1Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Research Institute, Pediatric Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, No. 62, Dr. Qarib's St, Keshavarz Blvd, Tehran, 14194 33151, Iran.
Whole kidney decellularization using sodium dodecyl sulfate (SDS) shows promise for regenerative medicine. A 0.1% SDS concentration for 24 hours effectively removed cells while preserving extracellular matrix in human fetal kidneys.
Area of Science:
- Regenerative Medicine
- Biomaterials Science
- Nephrology
Background:
- Chronic kidney disease is a major public health concern.
- Renal replacement therapy is the standard treatment for end-stage kidney disease.
- Whole organ decellularization offers a novel regenerative approach using intrinsic vasculature for agent perfusion.
Purpose of the Study:
- To evaluate the efficacy of varying sodium dodecyl sulfate (SDS) concentrations and perfusion durations for decellularizing human fetal kidneys.
- To assess the impact of SDS treatment on extracellular matrix (ECM) preservation and cellular material removal.
- To identify optimal conditions for whole kidney decellularization as a precursor for bioscaffold generation.
Main Methods:
- Human fetal kidneys (gestational age < 14 weeks) were divided into six groups based on SDS concentration and perfusion time.
- Decellularization was performed using the intrinsic vasculature.
- Evaluation included scanning electron microscopy, histopathological, immunofluorescent, and immunohistochemistry staining.
Main Results:
- The SDS 0.1% treatment group for 24 hours demonstrated significantly higher collagen deposition compared to the SDS 0.5% group at 24 and 48 hours.
- This optimal group showed superior extracellular matrix preservation and effective cell removal.
- No significant differences were found among other treatment groups.
Conclusions:
- Sodium dodecyl sulfate (SDS) 0.1% for 24 hours is the most effective condition for decellularizing human fetal kidneys.
- This method balances cell removal with essential extracellular matrix preservation.
- The findings support the potential of this optimized decellularization protocol for future whole kidney regeneration studies.
