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当归多糖改善先兆流产模型大鼠Th1/Th2失衡及保胎作用 Δ
孙 哲 ,刘 莲 ,张泰魏 ,王 琪 ,周意园 ,张昌容 ,华诏召 (1.贵州中医药大学第一附属医院妇科,
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贵阳 550001;2.贵州医科大学临床微生物与免疫学教研室,贵阳 550001;3.贵州中医药大学第一附属医院
优生研究中心,贵阳 550001;4.贵州中医药大学第二附属医院产科,贵阳 550002)
中图分类号 R965;R285 文献标志码 A 文章编号 1001-0408(2023)19-2344-06
DOI 10.6039/j.issn.1001-0408.2023.19.08
摘 要 目的 研究当归多糖通过调节磷脂酰肌醇3激酶(PI3K)/蛋白激酶B(AKT)信号通路对先兆流产模型大鼠的保胎作用及
Th1/Th2平衡的影响。方法 将妊娠大鼠随机分为对照组、模型组、当归多糖组(200 mg/kg)、PI3K/AKT信号通路抑制剂LY294002
组(5 mg/kg)和当归多糖+LY294002组(200 mg/kg当归多糖+5 mg/kg LY294002),每组10只。除对照组外其余各组大鼠均灌胃米非
司酮(8.3 mg/kg)和米索前列醇(100 μg/kg)建立先兆流产模型,并灌胃或腹腔注射相应药物。检测大鼠血清中雌激素、孕激素、干扰
素γ(IFN-γ)、肿瘤坏死因子α(TNF-α)、白细胞介素4(IL-4)水平;测定大鼠子宫卵巢指数及胚胎死亡率;观察大鼠子宫组织形态;
检测大鼠外周血中Th1/Th2平衡以及子宫组织中PI3K/AKT信号通路相关蛋白的表达。结果 与对照组比较,模型组大鼠子宫组
织出现病理损伤;血清中雌激素、孕激素、IL-4水平,子宫卵巢指数、外周血中Th2细胞比例,子宫组织中p-PI3K/PI3K、p-AKT/AKT比
值均显著降低(P<0.05);胚胎死亡率、Th1细胞比例、Th1/Th2比值和血清中IFN-γ、TNF-α水平均显著升高(P<0.05)。与模型组
比较,当归多糖组大鼠子宫组织病理损伤减轻,上述指标均显著改善(P<0.05),且LY294002可减弱当归多糖对模型大鼠的改善
作用(P<0.05)。结论 当归多糖可通过激活PI3K/AKT信号通路改善先兆流产模型大鼠Th1/Th2失衡,进而抑制免疫炎症,促使
胚胎存活。
关键词 当归多糖;磷脂酰肌醇3激酶/蛋白激酶B信号通路;先兆流产;保胎作用;Th1/Th2平衡
Angelica sinensis polysaccharides improve Th1/Th2 imbalance and protect pregnancy in threatened
abortion model rats
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SUN Zhe ,LIU Lian ,ZHANG Taiwei ,WANG Qi ,ZHOU Yiyuan ,ZHANG Changrong ,HUA Zhaozhao 4
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(1. Dept. of Gynecology, the First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine,
Guiyang 550001, China;2. Clinical Microbiology and Immunology Teaching and Research Office, Guizhou
Medical University, Guiyang 550001, China;3. Research Center of Eugenics, the First Affiliated Hospital of
Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China;4. Dept. of Obstetrics, the
Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550002, China)
ABSTRACT OBJECTIVE To study the tocolysis effects of Angelica sinensis polysaccharides on threatened abortion model rats
and their impacts on Th1/Th2 balance by regulating the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) signaling
pathway. METHODS Pregnant rats were randomly grouped into the control group, model group, A. sinensis polysaccharide group
(200 mg/kg), PI3K/AKT signaling pathway inhibitor LY294002 group (5 mg/kg), and A. sinensis polysaccharide+LY294002 group
(200 mg/kg A. sinensis polysaccharide+5 mg/kg LY294002), with 10 rats in each group. Except for the control group, rats in all
other groups were given mifepristone (8.3 mg/kg) and misoprostol (100 μg/kg) intragastrically to establish a threatened abortion
model, and intragastric or intraperitoneal injection of corresponding drugs. The serum levels of estrogen, progesterone, interferon-γ
(IFN-γ), tumor necrosis factor-α (TNF-α), and interleukin-4 (IL-4) in each group of rats were detected, and the uterine ovarian
index and embryonic mortality rate of rats in each group were measured; the morphology of uterine tissue in rats was observed in
each group; Th1/Th2 balance in peripheral blood of rats as well as the expression of PI3K/AKT signaling pathway-related proteins
in the uterine tissues of rats in each group were detected.
Δ 基金项目 贵州省中医药管理局中医药、民族医药科学技术研 RESULTS Compared with the control group, the uterine
究课题(No.QZYY-2021-031,No.QZYY-2021-120) tissue of rats in the model group showed pathological damage;
*第一作者 主治医师,硕士。研究方向:中医药对生殖障碍疾病
the serum levels of estrogen, progesterone and IL-4, uterine
的干预。E-mail:852235404@qq.com
# 通信作者 副主任医师,硕士。研究方向:中医药对生殖障碍疾 ovarian index, peripheral blood Th2 cell ratio, and the ratios
病的干预。E-mail:859245757@qq.com of phosphorylated PI3K (p-PI3K)/PI3K and phosphorylated
· 2344 · China Pharmacy 2023 Vol. 34 No. 19 中国药房 2023年第34卷第19期