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1.山东中医药大学第一临床医学院(山东 济南 250355)
2.山东省妇幼保健院中医内科(山东 济南 250000)
3.济南市中医医院内分泌科(山东 济南 250012)
4.山东中医药大学附属医院内分泌科(山东 济南 250014)
Received:13 January 2025,
Published:10 September 2025
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俞洋,张金艳,魏皓月,等.四逆消瘿方抑制STAT3棕榈酰化调控Th17/Treg平衡改善桥本甲状腺炎[J].上海中医药杂志,2025,59(9):75-84.
YU Yang,ZHANG Jinyan,WEI Haoyue,et al.Sini Xiaoying Decoction ameliorates Hashimoto thyroiditis by modulating Th17/Treg balance via STAT3 palmitoylation inhibition[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(9):75-84.
俞洋,张金艳,魏皓月,等.四逆消瘿方抑制STAT3棕榈酰化调控Th17/Treg平衡改善桥本甲状腺炎[J].上海中医药杂志,2025,59(9):75-84. DOI: 10.16305/j.1007-1334.2025.z20250113008.
YU Yang,ZHANG Jinyan,WEI Haoyue,et al.Sini Xiaoying Decoction ameliorates Hashimoto thyroiditis by modulating Th17/Treg balance via STAT3 palmitoylation inhibition[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(9):75-84. DOI: 10.16305/j.1007-1334.2025.z20250113008.
目的
2
观察四逆消瘿方(SNXY)含药血清对桥本甲状腺炎(HT)细胞的影响,并探讨其潜在的作用机制。
方法
2
①制备SNXY含药血清,γ干扰素(IFN-γ)干预人甲状腺正常细胞(Nthy-ori 3-1细胞)制备HT细胞模型。将Nthy-ori 3-1细胞设为对照组(Control),HT细胞模型分为模型组(Model)和SNXY含药血清低、中、高剂量组(SNXY-D、SNXY-Z、SNXY-G)。SNXY-D、SNXY-Z、SNXY-G给予对应分组体积分数为10%的含药血清,Control、Model给予体积分数为10%的空白血清,干预48 h。采用流式细胞仪检测各组细胞凋亡情况;酶联免疫吸附测定(ELISA)法检测相关指标含量;Western blot法检测信号转导和转录激活因子3(STAT3)、磷酸化信号转导及转录激活子3(p-STAT3)蛋白表达量;酰基-生物素交换法、免疫共沉淀(Co-IP)结合Western blot法检测STAT3的棕榈酰化水平。②构建过表达DHHC型棕榈酰转移酶7(DHHC7)慢病毒载体,将Nthy-ori 3-1细胞与CD4
+
T细胞共培养设为对照组(Control);将HT细胞模型与CD4
+
T细胞共培养分为模型组(Model)和含药血清组(SNXY),Model转染空白质粒后设为空转组(OE-CN),Model转染DHHC7过表达质粒后设为转染组(OE-DHHC7)。SNXY、OE-CN、OE‑DHHC7给予效果最佳剂量组体积分数为10%的含药血清干预,Control、Model给予体积分数为10%的空白血清,干预48 h。
结果
2
①与Model比较,SNXY-D、SNXY-Z、SNXY-G细胞凋亡率均降低(
P
<
0.01);SNXY-D、SNXY-Z、SNXY-G中的游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺激素(TSH)、甲状腺过氧化物酶抗体(TPO-Ab)和甲状腺球蛋白抗体(Tg-Ab)的含量均降低(
P
<
0.05,
P
<
0.01);SNXY-D、SNXY-Z、SNXY-G肿瘤坏死因子-α(TNF-α)和白细胞介素(IL)-6的含量均明显降低,IL-10和IL-12的含量均明显升高,差异有统计学意义(
P
<
0.01);SNXY-D、SNXY-Z、SNXY-G中的p-STAT3表达水平明显降低(
P
<
0.05,
P
<
0.01);SNXY-D、SNXY-Z、SNXY-G棕榈酰化水平明显降低(
P
<
0.05,
P
<
0.01)。②与Model比较,SNXY中的DHHC7表达水平明显降低(
P
<
0.01);与OE-CN比较,OE-DHHC7中的DHHC7表达水平明显升高(
P
<
0.01)。与Model相比,SNXY中的辅助性T 细胞17(Th17)的数量明显下降,调节性T细胞(Treg)的数量明显上升(
P
<
0.01);与OE-CN比较,OE‑DHHC7中的Th17数量明显增加,Treg细胞数量明显下降(
P
<
0.01)。与Model相比,SNXY中的IL-17A、IL-17F、IL-6、IL-21和IL-23的含量均降低(
P
<
0.01);与OE-CN比较,OE-DHHC7中的IL-17A、IL-17F、IL-6、IL-21和IL-23的含量均升高(
P
<
0.01)。
结论
2
SNXY能够抑制HT细胞的炎症反应,其机制可能与抑制STAT3棕榈酰化调控Th17/Treg平衡有关。
Objective
2
To observe the effect of serum containing Sini Xiaoying Decoction (SNXY) on Hashimoto thyroiditis (HT) cells and explore its potential mechanism.
Methods
2
①SNXY drug-containing serum was prepared, and human thyroid normal cells (Nthy-ori 3-1 cells) were interfered with interferon-γ (IFN-γ) to establish HT cell model. Nthy-ori 3-1 cells were used as control group (Control), and HT cell models were divided into model group (Model) and SNXY drug-containing serum low, medium and high dose groups (SNXY-D, SNXY-Z, SNXY-G). SNXY-D, SNXY-Z and SNXY-G were given 10% corresponding drug-containing serums, and Control and Model groups were given 10% blank serum for 48 hours of intervention. Apoptosis in each group was detected by flow cytometry; relevant indicators were detected by enzyme-linked immunosorbent assay (ELISA); the protein expression of signal transducer and activator of transcription 3 (STAT3) and phosphorylated signal transducer and activator of transcription 3 (p-STAT3) were detected by Western blot, and the palmitoylation level of STAT3 was detected by acyl-biotin exchange, co-immunoprecipitation (Co-IP) combined with Western blot. ②A lentivirus vector overexpressing palmitoyltransferase DHHC7 was constructed, and Nthy-ori 3-1 cells co-cultured with CD4
+
T cells were used as the control group (Control); the HT cell models co-cultured with CD4
+
T cells were divided into model group (Model) and drug-containing serum group (SNXY). Model transfected with blank plasmid was used as idle group (OE-CN), and Model transfected with DHHC7 overexpressing plasmid as transfection group (OE-DHHC7). SNXY, OE-CN and OE-DHHC7 were given 10% drug-containing serum of the optimal dose group, and Control and Model were given 10% blank serum for 48 hours.
Results
2
①Compared with Model, the apoptosis rates of SNXY-D, SNXY-Z and SNXY-G cells were all reduced
(
P
<
0.01); the contents of free triiodothyronine (FT3), free thyroxine (FT4), thyroid stimulating hormone (TSH), thyroid peroxidase antibody (TPO-Ab) and thyroglobulin antibody (Tg-Ab) in SNXY-D, SNXY-Z and SNXY-G all decreased (
P
<
0.05,
P
<
0.01); The contents of tumor necrosis factor-α (TNF-α) and interleukin (IL)-6 in SNXY-D, SNXY-Z and SNXY-G were significantly reduced, while the contents of IL-10 and IL-12 were significantly increased, with statistical significance (
P
<
0.01); expression level of p-STAT3 in SNXY-D, SNXY-Z and SNXY-G was significantly reduced (
P
<
0.05,
P
<
0.01); the palmitoylation level of SNXY-D, SNXY-Z and SNXY-G was significantly reduced (
P
<
0.05,
P
<
0.01).②Compared with Model, DHHC7 expression level in SNXY was significantly reduced (
P
<
0.01); compared with OE-CN, DHHC7 expression level in OE-DHHC7 was significantly increased (
P
<
0.01). Compared with Model, the number of helper T cells 17 (Th17) in SNXY decreased significantly, and the number of regulatory T cells (Treg) increased significantly (
P
<
0.01); compared with OE-CN, the number of Th17 in OE-DHHC7 increased significantly, while the number of Treg decreased significantly (
P
<
0.01). Compared with Model, the contents of IL-17A, IL-17F, IL-6, IL-21 and IL-23 in SNXY were all decreased (
P
<
0.01); compared with OE-CN, the contents of IL-17A, IL-17F, IL-6, IL-21 and IL-23 in OE-DHHC7 were all increased (
P
<
0.01).
Conclusion
2
SNXY can inhibit the inflammatory response of HT cells, and its mechanism may be related to the inhibition of STAT3 palmitoylation to regulate Th17/Treg balance.
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