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铁皮石斛对干皮症小鼠皮肤损伤的改善作用及机制
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1, 5 #
于鹏龙 ,邓建青 ,孙善红 ,高 坤 ,胡江华 (1.重庆三峡医药高等专科学校中医学院,重庆 404000;2.重
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庆三峡医药高等专科学校附属中医院急诊重症医学科,重庆 404000;3.重庆三峡医药高等专科学校附属中医
院妇产科,重庆 404000;4.重庆三峡医药高等专科学校附属中医院内分泌科,重庆 404000;5.重庆三峡医药
高等专科学校附属中医院肾病科,重庆 404000)
中图分类号 R965;R285 文献标志码 A 文章编号 1001-0408(2026)07-0914-06
DOI 10.6039/j.issn.1001-0408.2026.07.15
摘 要 目的 研究铁皮石斛对干皮症小鼠皮肤损伤的改善作用及机制。方法 将小鼠随机分为对照组、模型组、铁皮石斛组,每
组5只。除对照组(仅做剃毛处理)外,其余各组小鼠采用丙酮-乙醚混合液复制干皮症模型,连续造模5 d。铁皮石斛组小鼠于每
天第 1 次造模后 2 h 时,涂抹 200 μL 铁皮石斛混悬液(0.2 mg/mL),对照组和模型组小鼠涂抹等体积纯水,每天 1 次,直至造模结
束。末次给药后,观察小鼠皮肤损伤情况和病理学形态;采用免疫荧光法检测小鼠皮肤组织中聚丝蛋白(Filaggrin)、兜甲蛋白(Lo‐
ricrin)、增殖细胞核抗原Ki67蛋白表达水平;采用16S rRNA测序法联合基因本体和京都基因与基因组百科全书(KEGG)富集分
析筛选铁皮石斛对干皮症皮肤损伤改善作用的核心通路,并进行验证。结果 与对照组比较,模型组小鼠有明显的搔抓行为,皮肤
有大量鳞屑,表皮角化过度、棘层肥厚;皮肤鳞屑评分、表皮厚度和皮肤组织中Ki67、Filaggrin、Loricrin蛋白表达水平均显著增加/
升高(P<0.05);与模型组比较,铁皮石斛组小鼠搔抓行为和鳞屑减少,皮肤角化程度减轻,上述定量指标显著减小/降低(P<
0.05)。核心通路筛选结果显示,差异基因涉及的KEGG通路包括白细胞介素17(IL-17)、肿瘤坏死因子(TNF)等信号通路;进一步
验证实验发现,经铁皮石斛干预后,小鼠皮肤组织中IL-17、TNF信号通路下游效应分子CCN1、Hbegf、Tnfrsf12a、Thbs1的mRNA
表达水平均显著降低(P<0.05)。结论 铁皮石斛可修复干皮症小鼠皮肤损伤;其作用机制与恢复角质形成细胞的增殖与分化平
衡,下调CCN1、Hbegf、Tnfrsf12a、Thbs1 mRNA表达有关。
关键词 铁皮石斛;干皮症;皮肤损伤;16S rRNA测序;小鼠;白细胞介素17;肿瘤坏死因子
Improvement effect and mechanism of Dendrobium officinale on skin damage in mice with xeroderma
YU Penglong ,DENG Jianqing ,SUN Shanhong ,GAO Kun ,HU Jianghua (1. College of Traditional Chinese
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Medicine, Chongqing Three Gorges Medical College, Chongqing 404000, China;2. Dept. of Emergency and
Critical Care Medicine, Affiliated Hospital of Traditional Chinese Medicine of Chongqing Three Gorges Medical
College, Chongqing 404000, China;3. Dept. of Obstetrics and Gynecology, Affiliated Hospital of Traditional
Chinese Medicine of Chongqing Three Gorges Medical College, Chongqing 404000, China;4. Dept. of
Endocrinology, Affiliated Hospital of Traditional Chinese Medicine of Chongqing Three Gorges Medical
College, Chongqing 404000, China;5. Dept. of Nephrology, Affiliated Hospital of Traditional Chinese Medicine
of Chongqing Three Gorges Medical College, Chongqing 404000, China)
ABSTRACT OBJECTIVE To study the improvement effect and mechanism of Dendrobium officinale on skin damage in mice
with xeroderma. METHODS The mice were randomly divided into control group, model group, and D. officinale group, with 5
mice in each group. Except for the control group (which only underwent shaving treatment), the mice in all other groups were
induced to develop a xeroderma model using an acetone-ether mixture for five consecutive days. The mice in D. officinale group
were treated with 200 μL of D. officinale suspension (0.2 mg/mL) two hours after the first modeling each day. Mice in the control
group and the model group were applied with an equal volume of pure water; once a day, until the end of the modeling process.
After last medication, skin lesions and pathological
Δ 基金项目 重庆市教育委员会科学技术研究项目(No.KJZD- morphology of the mice were observed. Immunofluorescence
K202302704) was used to detect the expressions of Filaggrin, Loricrin and
*第一作者 副教授。研究方向:中医内科疾病诊疗。E-mail:
Ki67 proteins in skin tissue of the mice. The core pathways
76193263@qq.com
# 通信作者 主任医师。研究方向:中医药治疗常见病的相关研 through which D. officinale improves skin damage in
究。E-mail:791915121@qq.com xeroderma were screened using 16S rRNA sequencing
· 914 · China Pharmacy 2026 Vol. 37 No. 7 中国药房 2026年第37卷第7期

