Effect of Tu Fu Ling (Rhizoma Smilacis Glabrae), Wu Mei (Fructus Mume) and Their Compatibility on Inflammatory Factors and Notch Signaling Pathway in Skin Lesions of Psoriasis-like Model Mice
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Effect of Tu Fu Ling (Rhizoma Smilacis Glabrae), Wu Mei (Fructus Mume) and Their Compatibility on Inflammatory Factors and Notch Signaling Pathway in Skin Lesions of Psoriasis-like Model Mice
Journal of Traditional Chinese MedicineVol. 63, Issue 19, Pages: 1880-1887(2022)
LIU Lijuan,WU Yayun,ZHAO Ya,et al.Effect of Tu Fu Ling (Rhizoma Smilacis Glabrae), Wu Mei (Fructus Mume) and Their Compatibility on Inflammatory Factors and Notch Signaling Pathway in Skin Lesions of Psoriasis-like Model Mice[J].Journal of Traditional Chinese Medicine,2022,63(19):1880-1887.
LIU Lijuan,WU Yayun,ZHAO Ya,et al.Effect of Tu Fu Ling (Rhizoma Smilacis Glabrae), Wu Mei (Fructus Mume) and Their Compatibility on Inflammatory Factors and Notch Signaling Pathway in Skin Lesions of Psoriasis-like Model Mice[J].Journal of Traditional Chinese Medicine,2022,63(19):1880-1887.DOI: 10.13288/j.11-2166/r.2022.19.015.
Effect of Tu Fu Ling (Rhizoma Smilacis Glabrae), Wu Mei (Fructus Mume) and Their Compatibility on Inflammatory Factors and Notch Signaling Pathway in Skin Lesions of Psoriasis-like Model Mice
To investigate the intervention effect of Tu Fu Ling (
Rhizoma Smilacis Glabrae
), Wu Mei (
Fructus Mume
) and their compatibility on imiquimod-induced psoriasis-like model mice and the underlying mechanism.
Methods
2
A total of 60 BALB/c mice were randomly divided into normal group, model group, methotrexate group, combination (Tu Fu Ling
plus Wu Mei) group, Tu Fu Ling group and Wu Mei group with 10 mice in each group. As prophylaxis, interventions were provided to the mice for three days. The corresponding herbal medicine at a dose of 1.95, 0.78 and 2.73 g/(kg·d) was given to the mice by gavage in the Tu Fu Ling group, Wu Mei group and the combination group, respectively; 1 mg/(kg·d) of methotrexate tablets was given to mice in the methotrexate group by gavage; and 10 ml/(kg·d) of purified water was given by gavage to the mice in the normal group and model group; all interventions were provided once daily. Since the fourth day, mice in all groups but the model group were smeared by 62.5 mg of 5% imiquimod cream every morning to establish the psoriasis-like mice model; the prophylaxis interventions were given continuously every afternoon for six consecutive days. The general conditions of mice in each group were observed, and psoriasis area severity index (PASI) score in each group was compared. Quantitative analysis in
Jin's
(
Zheng jun
) formula was performed to analyze the synergistic effect by the combination of Tu Fu Ling and Wu Mei. Changes in the skin lesions of histopathology were observed with HE staining and evaluated by Baker score. The levels of interleukin 6 (IL-6), interleukin 12 (IL-12), interleukin 17 (IL-17) and interleukin 23 (IL-23) in the skin lesions was determined by ELISA. The protein expressions of Neurogenic locus Notch homologous protein 1 antibody (Notch1), Hes family BHLH transcription factor 1 antibody (Hes1) and Jagged canonical Notch ligand 1 antibody (Jagged1) in the skin lesions were detected by western blotting.
Results
2
Compared to those in the normal group, poor general condition of hair and mental state, obvious erythema, scales, and thickened skin lesions were observed, and the PASI score, the Baker score, the levels of IL-6, IL-12 and IL-23, and the protein expressions of Notch1 and Hes1 in the skin significantly increased in the model group (
P
<0.05 or
P
<0.01). Compared to those in the model group, the general condition of the mice was improved, and the erythema and scale of skin lesions of mice, the PASI score, the levels of IL-6, IL-12 and IL-23 in the skin were significantly reduced in the Tu Fu Ling group,
Wu Mei
group, combination group and methotrexate group (
P
<0.05 or
P
<0.01); the Baker score in the Tu Fu Ling group, combination group and methotrexate group, and the protein expressions of Notch1 and Hes1 in the combined group and methotrexate group significantly decreased (
P
<0.05 or
P
<0.01). The combination group had lower PASI score and Baker score than the Tu Fu Ling group and Wu Mei
group (
P
<0.05), as well as decreased Notch1 expression than the Tu Fu Ling
group (
P
<0.05). There was no difference between the combined group and methotrexate group in all the indicators (
P
>0.05). A synergistic effect with Q value up to 1.29 (>1.15) was shown in the combination of Tu Fu Ling and Wu Mei
with
Jin
's (
Zheng jun
) formula.
Conclusion
2
Tu Fu Ling in combination with Wu Mei
could improve the symptoms of skin lesions in psoriasis model mice with better effect than
used alone,
and its mechanism might be related to regulation of Notch1 signaling pathway and inhibition of inflammatory response.
关键词
Keywords
references
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