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. 2021 Sep;27(6):1580-1589.
doi: 10.1111/odi.13674. Epub 2020 Oct 22.

Regeneration of lingual musculature in rats using myoblasts over porcine bladder acellular matrix

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Regeneration of lingual musculature in rats using myoblasts over porcine bladder acellular matrix

Fabio Camacho-Alonso et al. Oral Dis. 2021 Sep.

Abstract

Objectives: To use tissue engineering muscle repair (TEMR) for regenerating the lingual musculature of hemiglossectomized rats using neonatal myoblasts (NM) on porcine acellular urinary bladder matrix (AUBM).

Material and methods: The study used 80 male rats. A volumetric muscle loss (VML) injury was created on the left side of the tongue. The rats were randomized into four groups: Group 1 (AUBM + myoblasts); Group 2 (AUBM); Group 3 (myoblasts); and Group 4 (control). NM were obtained from neonatal rats. The animals were weighed on day 0 and just before euthanasia. Five rats in each group were euthanized at days 2, 14, 28, and 42; the tongues were prepared for morphometric analysis, postoperative left hemitongue weight, and immunohistochemical analysis (desmin, CD-31, and anti-neurofilament).

Results: The weight gain from greatest to least was as follows: AUBM + myoblasts > myoblasts > AUBM > control. The tongue dorsum occupied by VML, and difference in mg between control side and intervened side from least to great was as follows: AUBM + myoblasts < myoblasts < AUBM < control. The order from highest to lowest antibody positivity was as follows: AUBM + myoblasts > myoblasts > AUBM > control.

Conclusion: The use of porcine AUBM and NM for the regeneration of lingual musculature was found to be an effective TEMR treatment for repairing tongue VML injury.

Keywords: hemiglossectomized tongues; neonatal myoblasts; porcine acellular urinary bladder matrix; tissue engineering muscle repair; volumetric muscle loss.

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References

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