南京中医药大学附属苏州市中医医院耳鼻喉科,江苏 苏州 215000
Received:05 August 2025,
Online First:31 July 2026,
Published:25 August 2026
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王璟,高原.木犀草素抑制TLR4/MyD88/NF-κB通路对过敏性鼻炎大鼠鼻黏膜损伤的影响[J].局解手术学杂志,2026,35(08):688-693.
WANG Jing,GAO Yuan.Effect of luteolin on nasal mucosal injury in allergic rhinitis rats by inhibiting the TLR4/MyD88/NF-κB pathway[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2026,35(08):688-693.
王璟,高原.木犀草素抑制TLR4/MyD88/NF-κB通路对过敏性鼻炎大鼠鼻黏膜损伤的影响[J].局解手术学杂志,2026,35(08):688-693. DOI: 10.11659/jjssx.08E025016.
WANG Jing,GAO Yuan.Effect of luteolin on nasal mucosal injury in allergic rhinitis rats by inhibiting the TLR4/MyD88/NF-κB pathway[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2026,35(08):688-693. DOI: 10.11659/jjssx.08E025016.
目的
2
探究木犀草素抑制Toll样受体4(TLR4)/髓样分化因子88(MyD88)/核因子-κB(NF-κB)通路对过敏性鼻炎(AR)大鼠鼻黏膜损伤的影响。
方法
2
将大鼠分为对照组、AR组(建模)、L-木犀草素组(建模+50 mg/kg木犀草素)、H-木犀草素组(建模+150 mg/kg木犀草素)、H-木犀草素+脂多糖(LPS)组(建模+150 mg/kg木犀草素+0.05 g/kg LPS)。观察各组大鼠鼻部症状并评分;采用苏木精-伊红(HE)染色评估大鼠鼻黏膜组织损伤;对大鼠鼻腔灌洗液中的嗜酸性粒细胞、中性粒细胞和淋巴细胞进行细胞计数;ELISA法测定各组大鼠血清中炎症因子和免疫球蛋白E(IgE)、组胺(HIS)水平;Western blot检测大鼠鼻黏膜组织中TLR4/MyD88/NF-κB通路相关蛋白表达。
结果
2
与对照组相比,AR组大鼠鼻黏膜上皮出现充血、水肿、坏死和嗜酸性粒细胞浸润,鼻部症状评分、嗜酸性粒细胞数、中性粒细胞数、淋巴细胞数、IgE、HIS、白细胞介素(IL)-4、IL-13及TLR4、MyD88、NF-κB蛋白表达水平显著增加(
P
<
0.05),IFN-γ水平降低(
P
<
0.05);L-木犀草素组、H-木犀草素组大鼠鼻黏膜上皮充血、水肿情况有所缓解,鼻部症状评分、炎症细胞数量、IgE、HIS、IL-4、IL-13及TLR4、MyD88、NF-κB蛋白表达水平显著低于AR组(
P
<
0.05),IFN-γ水平高于AR组(
P
<
0.05),且H-木犀草素组在各项指标上的改善效果优于L-木犀草素组(
P
<
0.05);与H-木犀草素组比较,H-木犀草素+LPS组大鼠鼻黏膜上皮充血、水肿、坏死等损伤情况加重,鼻部症状评分、炎症细胞数量、IgE、HIS、IL-4、IL-13及TLR4、MyD88、NF-κB蛋白表达水平显著增加(
P
<
0.05),IFN-γ水平降低(
P
<
0.05)。
结论
2
木犀草素可通过抑制TLR4/MyD88/NF-κB通路缓解AR大鼠鼻黏膜损伤。
Objective
2
To investigate the effect of luteolin on nasal mucosal injury in allergic rhinitis (AR) rats by inhibiting the Toll-like receptor 4 (TLR4)/myeloid differentiation primary response gene 88 (MyD88)/nuclear factor kappa-B (NF-κB) pathway.
Methods
2
The rats were divided into the control group,the AR group (modeling),the L-luteolin group (modeling+50 mg/kg luteolin),the H-luteolin group (modeling+150 mg/kg luteolin),and the H-luteolin+lipopolysaccharide (LPS) group (modeling+150 mg/kg luteolin+0.05 g/kg LPS).The nasal symptom of rats in each group was observed and scored;Hematoxylin-eosin (HE) staining was used to assess the nasal mucosal injury;The eosinophils,neutrophils and lymphocytes in nasal lavage fluid of rats were counted;The serum levels of inflammatory factors and immunoglobulin E (IgE),histamine (HIS)of rats in each group were detected by ELISA;The expressions of TLR4/MyD88/NF-κB pathway-related proteins in nasal mucosa tissue of rats were detected by Western blot.
Results
2
Compared with the control group,the nasal mucosal epithelium of rats in the AR group showed congestion,edema,necrosis,and eosinophil infiltration,and increases in the nasal symptom score,eosinophil counts,neutrophil counts,lymphocyte counts,the levels of IgE,HIS,interleukin (IL)-4,IL-13 and the expression levels of TLR4,MyD88 and NF-κB protein (
P
<
0.05),while decrease in the IFN-γ level (
P
<
0.05). Compared with the AR group,the nasal mucosal epithelial congestion and edema of rats in the L-luteolin group and the H-luteolin group were alleviated,the nasal symptom score,inflammatory cell numbers,the levels of IgE,HIS,IL-4,IL-13 and the expression levels of TLR4,MyD88,and NF-κB protein significantly decreased(
P
<
0.05),while the IFN-γ level increased (
P
<
0.05). Moreover, the improvement in all detected indicators of rats in the H-luteolin group was better than that in the L-luteolin group (
P
<
0.05). Compared with the H-luteolin group,the rats in the H-luteolin+LPS group showed aggravated damage such as congestion,edema,and necrosis,and increases in the nasal symptom score,inflammatory cell numbers,the levels of IgE,HIS,IL-4,IL-13 and the expression levels of TLR4,MyD88 and NF-κB protein (
P
<
0.05),while decrease in the IFN-γ level (
P
<
0.05).
Conclusion
2
Luteolin can alleviate nasal mucosal injury in AR rats by inhibiting TLR4/MyD88/NF-κB pathway.
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