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1.上海中医药大学附属曙光医院肿瘤科/肿瘤研究室(上海 201203)
2.上海中医药大学附属宝山医院肿瘤科(上海 201999)
唐蕾,女,硕士研究生,主要从事中西医结合防治肿瘤的基础研究工作
杨柳,副主任医师,硕士研究生导师;E-mail: bsyykyc@shutcm.edu.cn
季青,研究员,博士研究生导师; E-mail: ttt99118@hotmail.com
收稿日期:2024-10-14,
纸质出版日期:2025-07-10
移动端阅览
唐蕾,刘晓碟,浦匀舟,等.木防己汤对裸鼠非小细胞肺癌A549皮下移植瘤细胞自噬及ERK信号通路的影响[J].上海中医药杂志,2025,59(7):39-46.
TANG Lei,LIU Xiaodie,PU Yunzhou,et al.Effects of Mufangji Decoction on autophagy and ERK signaling pathway in A549 subcutaneous xenograft of non⁃small cell lung cancer in nude mice[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(7):39-46.
唐蕾,刘晓碟,浦匀舟,等.木防己汤对裸鼠非小细胞肺癌A549皮下移植瘤细胞自噬及ERK信号通路的影响[J].上海中医药杂志,2025,59(7):39-46. DOI: 10.16305/j.1007-1334.2025.z20240620002.
TANG Lei,LIU Xiaodie,PU Yunzhou,et al.Effects of Mufangji Decoction on autophagy and ERK signaling pathway in A549 subcutaneous xenograft of non⁃small cell lung cancer in nude mice[J].Shanghai Journal of Traditional Chinese Medicine,2025,59(7):39-46. DOI: 10.16305/j.1007-1334.2025.z20240620002.
目的
2
探讨木防己汤对非小细胞肺癌(NSCLC)肿瘤生长的抑制作用及其潜在机制。
方法
2
将人NSCLC A549细胞接种于裸鼠腋下,建立肺癌异种皮下移植瘤裸鼠模型。25只裸鼠随机分为模型组(0.2 mL 0.9%氯化钠溶液)、顺铂组[阳性对照,2 mg/(kg·d)]及木防己汤低剂量组[3 g/(kg·d)]
、中剂量组[6 g/(kg·d)]、高剂量组[12 g/(kg·d)](
n
=5)。模型组及木防己汤低、中、高剂量组每天灌胃给予相应药物,顺铂组予顺铂腹腔注射(每周2次),干预49 d。给药期间,观察木防己汤对裸鼠皮下移植瘤生长的影响。通过免疫组织化学法(IHC)、免疫荧光染色法(IF)及Western blot法(WB)检测皮下移植瘤中微管相关蛋白1轻链3(LC3)表达;WB检测皮下移植瘤中泛素结合蛋白P62(P62)及Bcl-2同源结构域蛋白(Beclin-1)表达;IHC和WB检测皮下移植瘤中胞外信号调节激酶(ERK)、磷酸化ERK(p-ERK)的表达。
结果
2
在裸鼠A549皮下移植瘤模型中,与模型组相比,木防己汤低、中、高剂量组瘤体体积及质量均明显减小(
P
<
0.05),呈现剂量依赖性,并且木防己汤高剂量组与顺铂组药效相当。IF、IHC、WB结果显示,木防己汤能上调肿瘤组织中LC3的表达水平(
P
<
0.05)。WB结果显示,木防己汤能上调肿瘤组织中Beclin-1蛋白表达水平(
P
<
0.05),下调P62蛋白的表达水平(
P
<
0.05)。WB和IHC结果显示,木防己汤下调了p-ERK的表达水平(
P
<
0.05)。
结论
2
木防己汤能通过促进肿瘤自噬发挥抗非小细胞肺癌的作用,其作用机制可能与抑制ERK信号通路激活相关。
Objective
2
To investigate the inhibitory effect of Mufangji Decoction (MFJD) on tumor growth in non-small cell lung cancer (NSCLC) and its underlying mechanisms.
Methods
2
A subcutaneous xenograft model of NSCLC was established by inoculating human A549 cells into the armpit of nude mice. Twenty-five nude mice were randomly divided into model group (0.2 mL 0.9% NaCl), cisplatin group (positive control, 2 mg/kg), MFJD low-dose group [3 g/(kg·d)], MFJD medium-dose group [6 g/(kg·d)] and MFJD high-dose group [12 g/(kg·d)] (
n
=5). The model and MFJD groups received intragastric administration with corresponding drugs everyday, while cisplatin group was intraperitoneally injected with cisplatin twice a week. Treatments lasted for 49 d. During administration, the effect of MFJD on the growth of subcutaneous transplanted tumor in nude mice was observed. Immunohistochemistry (IHC), immunofluorescence (IF) and Western blot (WB) were performed to detect the expression of microtubule-associated protein light chain 3 (LC3) in the subcutaneous tumors. WB was used to detect the expression of ubiquitin-binding protein P62 (P62) and Bcl-2 homeodomain protein
(Beclin-1) in the subcutaneous tumors. IHC and WB were employed to measure the expression extracellular signal-regulated kinase (ERK) and phosphorylated-ERK (p-ERK) in the subcutaneous tumors.
Results
2
In the A549 subcutaneous allograft tumor model of nude mice, compared with the model group, the tumor volume and weight in the low, medium, and high doses of MFJD groups were significantly reduced (
P
<
0.05), showing a dose-dependent effect, while the high-dose group was comparable to the cisplatin group in therapeutic efficacy. Moreover, IF, IHC and WB results revealed that MFJD could up-regulate LC3 expression level in tumor tissues (
P
<
0.05). WB results showed that MFJD could up-regulate the expression level of Beclin-1 protein in tumor tissues (
P
<
0.05) and down-regulate the expression level of P62 protein (
P
<
0.05) in tumor tissues. Additionally, both WB and IHC indicated that MFJD down-regulated the expression leved of p-ERK (
P
<
0.05).
Conclusions
2
MFJD can exerts an anti-NSCLC effect by promoting tumor autophagy, and its mechanism of action maybe related with the inhibition of ERK signaling pathway activation.
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