After nerve injury, due to disease or trauma, skeletal muscles
undergo denervation atrophy which prevents the possibility for recovery from
paralysis. There is no treatment for this atrophy currently. Researchers at Johns Hopkins University used mPEG-PCL (AK128,
https://akinainc.com/polyscitech/products/polyvivo/index.php?highlight=AK128#h)
from PolySciTech : Akina, Inc. (www.PolySciTech.com)
to develop a nanofiber hydrogel composite which delivers myoblast cells along
with growth factors to encourage nerve tissue regeneration. This was tested in
rat model and showed promise to restore strength and mobility. This research
holds promise to provide for treatment of nerve-tissue damage based paralysis.
Read more: Dias, Shaquielle, William Padovano, Chenhu Qiu, Thomas Harris,
Rachana Suresh, Erica Lee, Eszter Mihaly et al. "Myoblast Therapy
Ameliorates Skeletal Muscle Atrophy Resulting From Chronic
Denervation." Muscle & Nerve (2026). https://onlinelibrary.wiley.com/doi/abs/10.1002/mus.70254
“Skeletal muscle undergoes progressive denervation-induced
muscle atrophy (DIMA) after peripheral nerve injury that severely impairs the
potential for motor functional recovery with reinnervation. There are currently
no therapeutic strategies to reverse the deleterious effects of chronic DIMA,
leaving affected patients with lifelong disability. Herein, we used a
translational rodent forelimb nerve injury model to investigate whether
targeted injection of syngeneic myoblasts to chronically atrophic muscle can
reverse the histologic and functional consequences of DIMA. Male Lewis rats
underwent median nerve transection followed by immediate (positive control) or
delayed repair. Following a plateau of motor function, myoblasts were injected
into the digital flexor muscles (n = 5–6 per
group), delivered in either saline or a nanofiber hydrogel composite (NHC)
loaded with agrin- and insulin-like growth factor 1 (IGF-1)-releasing
nanoparticles (npNHC). Serial functional assessments of stimulated grip
strength and terminal histological evaluation were used to measure recovery. Satellite
cell-rich (Pax7Hi) myoblast therapy caused sustained improvement in stimulated
grip strength from pretreatment baseline (p < 0.05). Histological evaluation
demonstrated that myoblast therapy, when delivered in npNHC, reversed whole
muscle atrophy compared to positive controls [p = 0.997 and 0.996] and restored
mean myofiber cross-sectional area [p = 0.244]. Correlation analysis
demonstrated functional improvements were associated with increased myofiber
cross-sectional area [r = 0.900, p = 3.01E-09].
This data indicates that targeted injection of syngeneic myoblasts can reverse
the functional and histologic effects of DIMA in skeletal muscles and is a
promising strategy for improving recovery after peripheral nerve injuries.”
Benchtop
to Bedside with MidWestGMP https://www.akinainc.com/midwestgmp/
Corbion
Purasorb® Polymers: https://akinainc.com/polyscitech/products/purasorb/
Ashland-TM
Polymer Products: https://akinainc.com/polyscitech/products/ashland/
PrecisionGelTM from Vivos https://akinainc.com/polyscitech/products/vivos/





