Green Cocoon-derived Sericin Reduces Cellular Damage Caused by Radiation in Human Keratinocytes

Overview

Journal Sci Rep

Specialty Science

Date 2024 Feb 6

PMID 38321256

Authors

Nahoko Kakihara

Momoko Sato

Ayaki Shirai

Mizuki Koguchi

Shiori Yamauchi

Toshimichi Nakano

Ryuta Sasamoto

Hideyo Sato

Affiliations

Soon will be listed here.

Abstract

Radiation therapy used in the treatment of cancer causes skin damage, and no method of care has been established thus far. Recently, it has become clear that sericin derived from silkworm cocoons has moisturizing and antioxidant functions. In addition, green cocoon-derived sericin, which is rich in flavonoids, may have enhanced functions. However, whether this green cocoon-derived sericin can reduce radiotherapy-induced skin damage is unclear. In the present study, we aimed at establishing care methods to reduce skin cell damage caused by X-irradiation using green cocoon-derived sericin. We investigated its effect on human keratinocytes using lactate dehydrogenase activity to indicate damage reduction. Our results showed that green cocoon-derived sericin reduced cell damage caused by X-irradiation. However, this effect was not observed when cells were treated before X-irradiation or with a sericin derived from white cocoons. In addition, green cocoon-derived sericin decreased the levels of reactive oxygen species and lipid peroxidation. Our results suggest that green cocoon sericin mitigates the damaging effect of X-irradiation on cells, hence presenting potential usefulness in reducing skin damage from radiation therapy and opening new avenues in the care of cancer patients.

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