Canintika, Anissa Feby
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Adipose-derived mesenchymal stem cells enhance regeneration in a chronic peripheral sciatic nerve injury Sprague-Dawley rat model Widodo, Wahyu; Dilogo, Ismail Hadisoebroto; Kamal, Achmad Fauzi; Antarianto, Radiana Dhewayani; Wuyung, Puspita Eka; Siregar, Nurjati Chairani; Octaviana, Fitri; Kekalih, Aria; Suroto, Heri; Aprilya, Dina; Canintika, Anissa Feby
Medical Journal of Indonesia Vol. 34 No. 3 (2025): September
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13181/mji.oa.257780

Abstract

BACKGROUND Obtaining optimal functional outcomes in patients with chronic peripheral nerve injuries (PNIs) remains challenging due to the limited regeneration of the neuromuscular junction (NMJ). Adipose-derived mesenchymal stem cells (AD-MSCs) can differentiate into Schwann-like cells, secrete neurotrophic factors, and recruit native Schwann cells. This study aimed to analyze the effects of AD-MSCs on functional outcomes in a chronic PNI model. METHODS An in vivo study was performed using 20 male Sprague-Dawley rats with chronic PNI of the right sciatic nerve. Rats were divided into two groups: the AD-MSC group (n = 10), receiving human AD-MSC injections in the NMJ; and the control group (n = 10), receiving normal saline injections. Walking track analysis and electrophysiological assessments were performed 8 weeks after the nerve repair. Postmortem gastrocnemius muscle weights and immunohistochemical examinations were also performed. RESULTS The AD-MSCs showed significantly larger fiber diameters than the control group (45.54 [13.1] versus 35.46 [6.64]; p = 0.011). While clinical, electrophysiological, and gastrocnemius muscle weight data suggested a trend toward improved outcomes in the AD-MSCs group, the differences were not statistically significant. CONCLUSIONS AD-MSC implantation may enhance nerve regeneration, as demonstrated by a better outcome profile in the AD-MSCs group.
Optimal time point for evaluation in a chronic peripheral nerve injury rat model: a preclinical study Widodo, Wahyu; Dilogo, Ismail Hadisoebroto; Kamal, Achmad Fauzi; Antarianto, Radiana Dhewayani; Wuyung, Puspita Eka; Siregar, Nurjati Chairani; Octaviana, Fitri; Kekalih, Aria; Suroto, Heri; Aprilya, Dina; Canintika, Anissa Feby
Medical Journal of Indonesia Online First
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13181/mji.oa.257778

Abstract

BACKGROUND Peripheral nerve injury (PNI) can cause severe functional disabilities and progresses dynamically over time. Since evaluations held at different time points will yield different results, finding an optimal model for PNI comparison is needed. This study aimed to create an animal model of chronic denervation that simulates the progress of nerve injury. METHODS 6 male Sprague-Dawley rats underwent complete sciatic nerve transection in their right hind limbs, with severed nerve ends secured to a nearby muscle to prevent nerve regrowth. The rats were sacrificed at 2, 3, and 4 weeks. The assessment included walking analysis (pre- and post-injury), wet muscle weight measurement, and histological examination. RESULTS Progressive gastrocnemius muscle degeneration was observed at 3 different time points. Minimal degenerative changes were noted at 2 weeks, while extensive fibrosis (83.25 [12.19]% collagen area) appeared in the 4th week. The 3rd-week samples showed lymphocyte infiltrations, muscular atrophy, and progressive fibrosis, making it the best model for chronic PNI. CONCLUSIONS A 3-week chronic denervation model is proposed as a long-term PNI for further regenerative research.