Breakthrough in Cancer Gene Therapy: Researchers Develop Innovative Hydrogel for Treating UV-Induced Skin Damage

Fresh data on cancer gene therapy has been presented in a new report by researchers from the State Key Laboratory of Southwestern Chinese Medicine Resources. The study focuses on developing a temperature-sensitive hydrogel based on baicalin liposomes for treating ultraviolet-induced skin damage. The researchers designed a gel drug delivery system using lecithin loaded with insoluble baicalin and chitosan with b-glycerophosphate tetrahydrate as a crosslinking agent. The hydrogel showed significant effects in a UVB-induced skin injury mouse model by increasing superoxide dismutase activity, decreasing malondialdehyde damage, and inhibiting the expression of inflammatory factors.

Key Takeaways:

• The researchers designed a temperature-sensitive gel drug delivery system using lecithin loaded with insoluble baicalin and chitosan with b-glycerophosphate tetrahydrate as a crosslinking agent.
• The hydrogel showed good therapeutic efficacy and potential applications in the treatment of UVB-induced skin damage.
• The in vitro release results showed that the hydrogel had a cumulative release of 60% at 24 h, indicating a significantly slower release effect.
• The analysis of histopathological sections of the skin stained with H&E and Masson revealed results consistent with those observed on the mice.
• The hydrogel demonstrated a superior therapeutic effect in the UVB-induced skin injury mouse model by increasing superoxide dismutase activity, decreasing malondialdehyde damage, and inhibiting the expression of inflammatory factors.
• Baicalin has excellent antioxidant properties, but its poor solubility hinders its direct application, making the development of a suitable formulation for dermal administration essential.
• The researchers evaluated the effects of the hydrogel on skin keratinocyte HaCaT cells using the CCK8 method and transwell co-culture, and the results showed good cell activity and a high survival rate.

Statistics:

• The hydrogel had a cumulative release of 60% at 24 h.
• The analysis of histopathological sections of the skin stained with H&E and Masson revealed results consistent with those observed on the mice.
• The hydrogel demonstrated a superior therapeutic effect in the UVB-induced skin injury mouse model.
• The researchers used lecithin loaded with insoluble baicalin and chitosan with b-glycerophosphate tetrahydrate as a crosslinking agent to design the temperature-sensitive gel drug delivery system.

Sources:

• A Baicalin Liposome-Based Temperature-Sensitive Hydrogel for Treating Ultraviolet-Induced Skin Damage. International Journal of Nanomedicine, 2025, Volume 20(Issue 1):7935-7951.
• NewsRx. Studies in the Area of Cancer Gene Therapy Reported from State Key Laboratory of Southwestern Chinese Medicine Resources (A Baicalin Liposome-Based Temperature-Sensitive Hydrogel for Treating Ultraviolet-Induced Skin Damage). Cancer Weekly. July 8, 2025; p 91.