中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (4): 858-863.doi: 10.12307/2025.958

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

肿瘤坏死因子α、核因子κB及iba-1在主动脉夹层模型小鼠海马组织中的表达及意义

马  红1,2,丁雪苓1,2,王  琪3,侣  慧3,阿斯亚·阿不得斯木3,程心怡1,2,马  翔3   

  1. 新疆医科大学基础医学院,1病理学教研室,2法医学教研室,新疆维吾尔自治区乌鲁木齐市  830017;3新疆医科大学第一附属医院心脏中心,新疆维吾尔自治区乌鲁木齐市  830011
  • 收稿日期:2024-10-15 接受日期:2024-11-27 出版日期:2026-02-08 发布日期:2025-05-16
  • 通讯作者: 马翔,主任医师,教授,博士生导师,新疆医科大学第一附属医院心脏中心,新疆维吾尔自治区乌鲁木齐市 830011
  • 作者简介:马红,女,1979年生,新疆维吾尔自治区人,回族,2014年新疆医科大学毕业,博士,副教授,硕士生导师,主要从事主动脉夹层分子病理学研究。
  • 基金资助:
    国家自然科学基金(82360090),项目负责人:马翔

Expression and significance of tumor necrosis factor alpha, nuclear factor kappaB and ionized calcium binding adaptor molecule-1 in the hippocampus of mice with aortic dissection

Ma Hong1, 2, Ding Xueling1, 2, Wang Qi3, Lyu Hui3, Asya Albusm3, Cheng Xinyi1, 2, Ma Xiang3   

  1. 1Department of Pathology, 2Department of Forensic Medicine, School of Basic Medicine, Xinjiang Medical University, Urumqi 830017, Xinjiang Uygur Autonomous Region, China; 3Cardiac Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • Received:2024-10-15 Accepted:2024-11-27 Online:2026-02-08 Published:2025-05-16
  • Contact: Ma Xiang, Chief physician, Professor, Doctoral supervisor, Cardiac Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • About author:Ma Hong, PhD, Associate professor, Master’s supervisor, Department of Pathology, School of Basic Medicine, Xinjiang Medical University, Urumqi 830017, Xinjiang Uygur Autonomous Region, China; Department of Forensic Medicine, School of Basic Medicine, Xinjiang Medical University, Urumqi 830017, Xinjiang Uygur Autonomous Region, China
  • Supported by:
    National Natural Science Foundation of China, No. 82360090 (to MX)

摘要:


文题释义:
海马:该词来源拉丁文(Hippocampus),因该结构形状和海马相似而得名。解剖海马结构由海马及其临近颞叶区的齿状回和下托组成;此外,海马区包括海马旁回内部的内嗅区,它由CA1、CA2、CA3和CA4四个区域组成。信息进入海马时由齿状回流入CA3再经过CA1到脑下托,并在每个区域输入附加信息在最后的2个区域输出。
主动脉夹层:是一种严重的心血管急症,动脉壁内膜出现破口,血液通过破口进入动脉壁形成血肿,患者出现突然的、剧烈的、撕裂样的胸痛,同时出现胸闷、晕厥,腹痛、腹胀(内脏器官供血受到影响,导致患者出现腹痛、血尿和肠坏死)、下肢疼痛麻木,其次是烦躁不安、大汗淋漓、心悸气短等症状。

背景:目前主动脉夹层对海马损伤的研究甚少,而联合检测血清离子钙接头蛋白分子1、肿瘤坏死因子α和核因子κB在主动脉夹层中的表达未见报道。
目的:观察主动脉夹层小鼠模型海马组织形态学变化,探讨主动脉夹层小鼠海马肿瘤坏死因子α、核因子κB及离子钙接头蛋白分子1的表达及意义。
方法:选取16只3周龄健康雄性C57BL/6小鼠,随机分成对照组和主动脉夹层组,每组8只。主动脉夹层组小鼠在给予β-氨基丙腈饮水4周之后,埋入血管紧张素Ⅱ微渗透泵3 d,建立主动脉夹层小鼠模型;正常对照组小鼠保持正常的饮食和饮水。模型建立完成后,测量小鼠升主动脉最大直径,行主动脉组织苏木精-伊红染色、EVG染色评估成模率,采用酶联免疫吸附试验检测血清中炎性因子肿瘤坏死因子α、白细胞介素6的水平;解剖取海马进行苏木精-伊红染色观察海马区域病理变化;Western blot检测海马中肿瘤坏死因子α、核因子κB以及小胶质细胞标志物离子钙接头蛋白分子1的蛋白表达。
结果与结论:①与对照组相比,主动脉夹层组小鼠升主动脉最大直径明显增粗;②苏木精-伊红染色显示,主动脉夹层组小鼠主动脉中层明显增厚,主动脉壁结构破坏、紊乱;CA1和CA3区神经元排列疏松,体积缩小,核固缩深染;③主动脉夹层组血清中炎性因子肿瘤坏死因子α、白细胞介素6水平较对照组升高(P < 0.01);④主动脉夹层组海马肿瘤坏死因子α、核因子κB、磷酸化核因子κB、离子钙接头蛋白分子1蛋白表达较对照组增多(P < 0.05);⑤结果表明,主动脉夹层模型小鼠海马神经元损伤,可能与小胶质细胞活化和肿瘤坏死因子α、核因子κB蛋白表达升高有关。
https://orcid.org/0000-0001-5804-8953(马红);https://orcid.org/0000-0001-6528-3599(马翔)

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 主动脉夹层, 海马, 神经元, 肿瘤坏死因子α, iba-1, 工程化神经组织

Abstract: BACKGROUND: Hippocampal injury caused by aortic coarctation has been poorly studied, and combined detection of tumor necrosis factor α, nuclear factor κB and ionized calcium binding adaptor molecule-1 expression in aortic dissection has not been reported.
OBJECTIVE: To observe histomorphologic changes in the hippocampus of a mouse model of aortic dissection and investigate the expression and significance of tumor necrosis factor alpha, nuclear factor kappaB and ionized calcium binding adaptor molecule-1 in the hippocampus of aortic dissection mice.
METHODS: Sixteen healthy 3-week-old male C57BL/6 mice were randomly divided into two groups: control group and aortic dissection group, with eight mice in each group. In the aortic dissection group, mice were given β-aminopropionitrile monofumarate as drinking water for 4 weeks, and the angiotensin II microinfiltration pump was then implanted to establish an animal model of aortic dissection. Mice in the control group were given normal diet and water. After the model was established, the maximum diameter of the ascending aorta was measured, hematoxylin-eosin staining and EVG staining were performed to evaluate the model formation rate, and the levels of inflammatory factors tumor necrosis factor α and interleukin 6 in serum were detected by enzyme-linked immunosorbent assay. The hippocampus was dissected and stained with hematoxylin-eosin to observe the pathological changes of the hippocampus in brain sections. The protein expression of tumor necrosis factor α, nuclear factor κB and ionized calcium binding adaptor molecule-1 was detected by western blot analysis.
RESULTS AND CONCLUSION: (1) Compared with the control group, the maximum diameter of the ascending aorta in the aortic dissection group was significantly enlarged. (2) Hematoxylin-eosin staining of the aorta showed obvious thickening of the middle aorta and destruction and disorder of the aortic wall structure in mice. Neurons in the CA1 and CA3 regions of mice were sparsely arranged, reduced in size, and showed pyknosis with deeply stained nuclei. (3) Serum levels of inflammatory factors tumor necrosis factor α and interleukin 6 were increased in the aortic dissection group compared with the control group (P < 0.01). (4) The expression levels of tumor necrosis factor α, nuclear factor κB, phosphorylated nuclear factor κB, and ionized calcium binding adaptor molecule-1 in the hippocampus were increased in the aortic dissection group compared with the control group (P < 0.05). To conclude, microglial activation and increased expression of tumor necrosis factor α and nuclear factor κB may be involved in hippocampal neuron injury in aortic dissection mice. 

Key words: aortic dissection, hippocampus, neurons, tumor necrosis factor α, ionized calcium binding adaptor molecule-1, engineered tissue construction

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