TY - JOUR
T1 - Combining in vitro, in vivo, and in silico approaches to evaluate the effect of serotonergic-based topical therapies on mild to moderate psoriasis
AU - Martins, Ana M.
AU - Gonçalves, Lídia
AU - Simões, Sandra
AU - Serra, Patrícia A.
AU - Guedes, Rita C.
AU - Ribeiro, Helena
AU - Marto, Joana
N1 - Publisher Copyright:
© 2025 The Author(s)
PY - 2025/3/1
Y1 - 2025/3/1
N2 - Psoriasis, a chronic inflammatory skin disease, poses a significant burden on patients’ quality of life and healthcare systems. While mild-to-moderate cases are treated topically, usually combined with phototherapy, severe cases require systemic treatment with immunosuppressants, retinoids or biologics. However, all available treatments have drawbacks in terms of efficiency and side effects. Drawing from studies linking depression treatment to psoriasis improvement, we investigated whether topical formulations of selective serotonin reuptake inhibitors (SSRIs) could offer a viable therapy for psoriasis. Five SSRIs (sertraline, fluoxetine, paroxetine, escitalopram, fluvoxamine) were evaluated for their in vitro cytotoxicity, in human keratinocytes and THP-1 monocytes. Their anti-inflammatory action was tested using cell differentiation assays and immunoassays of pro-inflammatory cytokines in THP-1 monocytes. The results obtained with sertraline, escitalopram, and fluvoxamine suggested further evaluation in vivo. Anti-inflammatory effects were evaluated by skin parameter monitoring and histopathology, in an imiquimod-induced psoriasis-like inflammation mice model, and the best results were obtained for fluvoxamine. These findings were further supported by in silico molecular docking studies of the structural interaction between the serotonergic receptors and the drugs. Future research will focus on developing and characterizing of topical fluvoxamine formulations, like emulsions and penetration-enhancer vesicles, which offer advantages over the gels used herein.
AB - Psoriasis, a chronic inflammatory skin disease, poses a significant burden on patients’ quality of life and healthcare systems. While mild-to-moderate cases are treated topically, usually combined with phototherapy, severe cases require systemic treatment with immunosuppressants, retinoids or biologics. However, all available treatments have drawbacks in terms of efficiency and side effects. Drawing from studies linking depression treatment to psoriasis improvement, we investigated whether topical formulations of selective serotonin reuptake inhibitors (SSRIs) could offer a viable therapy for psoriasis. Five SSRIs (sertraline, fluoxetine, paroxetine, escitalopram, fluvoxamine) were evaluated for their in vitro cytotoxicity, in human keratinocytes and THP-1 monocytes. Their anti-inflammatory action was tested using cell differentiation assays and immunoassays of pro-inflammatory cytokines in THP-1 monocytes. The results obtained with sertraline, escitalopram, and fluvoxamine suggested further evaluation in vivo. Anti-inflammatory effects were evaluated by skin parameter monitoring and histopathology, in an imiquimod-induced psoriasis-like inflammation mice model, and the best results were obtained for fluvoxamine. These findings were further supported by in silico molecular docking studies of the structural interaction between the serotonergic receptors and the drugs. Future research will focus on developing and characterizing of topical fluvoxamine formulations, like emulsions and penetration-enhancer vesicles, which offer advantages over the gels used herein.
KW - In silico
KW - In vitro
KW - In vivo
KW - Inflammation
KW - Psoriasis
KW - Specific serotonin reuptake inhibitors
UR - http://www.scopus.com/inward/record.url?scp=85214788157&partnerID=8YFLogxK
U2 - 10.1016/j.ejps.2025.107013
DO - 10.1016/j.ejps.2025.107013
M3 - Article
AN - SCOPUS:85214788157
SN - 0928-0987
VL - 206
JO - European Journal of Pharmaceutical Sciences
JF - European Journal of Pharmaceutical Sciences
M1 - 107013
ER -