Regeneration of taste through sonic hedgehog upregulation by photobiomodulation
Lee, Ha Young Abueva, Celine Dg Padalhin, Andrew Park, So Young Ryu, Hyun Seok Chung, Phil-Sang Kim, Hee Jung Kim, Jeongyun Woo, Seung Hoon
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DOI/PMID/Link: 10.1002/jbio.202300043
Abstract
This study investigated photobiomodulation (PBM) effects in Sonic hedgehog (Shh) signaling as a potential approach to taste preservation and regeneration. Primary taste cell (TC) cultures were treated with Shh antagonist vismodegib and irradiated using a continuous wave type 630 nm light-emitting diode (10 mW/cm2 ) array, with single or multiple doses of 30 J/cm2 to determine dose inducing significant upregulation effect. Shh, Ptch, Smo, and Gli1 were significantly upregulated at 120 J/cm2 , used as the minimum dose in vivo. Vismodegib was administered via daily oral gavage for 21 days (30 mg/kg) to induce Shh inhibition in the tongue of rat animal models resulting in taste bud damage and taste dysfunction. PBM treatment using a 630 nm laser (3 W/cm2 ) at a radiant exposure of 120 J/cm2 (24 J/cm2 × 5) successfully upregulated the Shh protein expression, regenerated taste buds, and recovered taste function. Keywords: photobiomodulation; sonic hedgehog; taste; taste regeneration.
Year Published | 2023 |
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Country | South Korea |
Rank | Positive |
Journal | Journal of Biophotonics |
Primary Topic | Mouth |
Secondary Topic | Aging |
Tertiary Topic | Taste |
Model | Cell Culture |
Wavelength (nm) | |
Complement/Comparison |