中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (35): 5642-5648.doi: 10.12307/2024.573

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

数字化技术构建SD大鼠颞下颌关节骨关节炎动物模型

刘鹏慧,吴  凡,王泽杰,吴高义,周立波   

  1. 佳木斯大学附属口腔医院,佳木斯大学口腔医学工程实验中心,黑龙江省口腔生物医学材料与临床应用重点实验室,黑龙江省佳木斯市  154000
  • 收稿日期:2023-10-30 接受日期:2023-11-22 出版日期:2024-12-18 发布日期:2024-03-15
  • 通讯作者: 周立波,博士,副主任医师,佳木斯大学附属口腔医院,佳木斯大学口腔医学工程实验中心,黑龙江省口腔生物医学材料与临床应用重点实验室,黑龙江省佳木斯市 154000
  • 作者简介:刘鹏慧,女,1997年生,汉族,硕士,主要从事颞下颌关节疾病的研究。
  • 基金资助:
    国家自然科学基金项目(61771290,61871393),项目负责人:吴高义;黑龙江省自然科学基金项目(LH2021H108),项目负责人:周立波;黑龙江省教育厅青年人才创新计划项目(UNPYSCT-2020057),项目负责人:周立波;佳木斯大学青年创新人才培养计划项目(JMSUQP2020020),项目负责人:周立波

Constructing an animal model of temporomandibular joint osteoarthritis in Sprague-Dawley rats by digital technology

Liu Penghui, Wu Fan, Wang Zejie, Wu Gaoyi, Zhou Libo   

  1. Experimental Center for Stomatology Engineering & Heilongjiang Key Lab of Oral Biomedicine Materials and Clinical Application, Jiamusi University Affiliated Stomatological Hospital, Jiamusi University, Jiamusi 154000, Heilongjiang Province, China
  • Received:2023-10-30 Accepted:2023-11-22 Online:2024-12-18 Published:2024-03-15
  • Contact: Zhou Libo, MD, Associate chief physician, Experimental Center for Stomatology Engineering & Heilongjiang Key Lab of Oral Biomedicine Materials and Clinical Application, Jiamusi University Affiliated Stomatological Hospital, Jiamusi University, Jiamusi 154000, Heilongjiang Province, China
  • About author:Liu Penghui, Master, Experimental Center for Stomatology Engineering & Heilongjiang Key Lab of Oral Biomedicine Materials and Clinical Application, Jiamusi University Affiliated Stomatological Hospital, Jiamusi University, Jiamusi 154000, Heilongjiang Province, China
  • Supported by:
    the National Natural Science Foundation of China, Nos. 61771290 and 61871393 (both to WGY); Natural Science Foundation of Heilongjiang Province, No. LH2021H108 (to ZLB); Young Talent Innovation Program of Heilongjiang Provincial Department of Education, No. UNPYSCT-2020057 (to ZLB); Young Innovative Talent Training Program of Jiamusi University, No. JMSUQP2020020 (to ZLB)

摘要:


文题释义:

数字化3D打印技术:简称3D打印技术,又称为快速成型技术、快速原型技术或增材制造技术,可根据选择的材料、特定的计算机辅助设计(CAD)和精确的制造工艺来生产个性化三维物体。
精度:表示观测值与真值的接近程度,与误差的大小相对应,因此可用误差大小来表示精度的高低,误差小则精度高,误差大则精度低。


背景:颞下颌关节骨关节炎是一种发病率很高的口腔常见病,而颞下颌关节骨关节炎早期隐匿不易被发现,临床上病理标本获取难度较高,难以开展相关研究。将数字化3D打印技术应用到颞下颌关节骨关节炎动物模型上来增加动物模型的一致性,从而促进颞下颌关节骨关节炎疾病的研究。

目的:利用新型数字技术建立标准化的颞下颌关节骨关节炎大鼠模型。
方法:将30只SD雌性大鼠根据单侧前牙反牙合建模方法的不同,随机分为3组,传统模型组、数字化模型组和对照组,每组10只。于建模后4,8周采集髁突软骨标本,体式显微镜观察表观形态,苏木精-伊红染色、番红O/固绿染色观察病理形态,ELISA观察白细胞介素1β、肿瘤坏死因子α 的表达变化,免疫组织化学染色观察蛋白多糖、Ⅱ型胶原及基质金属蛋白酶13的表达变化。

结果与结论:①数字化模型组和传统模型组观察到不同程度的退行性病变。干预后第1周,模型组大鼠体质量均呈下降趋势,随后呈增长趋势,且显著低于对照组。②体式显微镜观察结果显示,建模后4,8周,数字化模型组表面的变形及缺损程度明显高于传统模型组。③两个时间点,数字化模型组和传统模型组的国际骨关节炎研究学会(Osteoarthritis Research Society International,OARSI)评分均高于对照组,数字化模型组高于传统模型组(P < 0.05)。④组织病理学观察显示,建模后4,8周,两个模型组的改良Mankin评分和OARSI评分均显著高于同龄对照组(P < 0.05)。⑤免疫组织化学染色结果显示,建模后4,8周,与同龄对照组相比,蛋白多糖及Ⅱ型胶原在传统模型组与数字化模型组两个时间点表达降低,基质金属蛋白酶13表达增强(P < 0.05)。⑥ELISA结果显示,传统和数字化模型组大鼠8周时炎性因子白细胞介素1β和肿瘤坏死因子α的表达水平均高于同龄对照组,数字化模型组高于传统模型组 (P < 0.05)。⑦采用3D打印技术设计制作的个性化金属管,无需反复试戴调整即能快速引导颞下颌关节发生骨关节炎样病变,可重复性好,适合推广应用。

https://orcid.org/0009-0006-1748-8059(刘鹏慧);https://orcid.org/0009-0000-9663-3088(周立波)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 颞下颌关节, 骨关节炎, 数字化技术, 3D打印, 动物模型, 单侧前牙反牙合, 咬合, 髁突软骨, 退行性病变, 高精度

Abstract: BACKGROUND: Temporomandibular joint osteoarthritis is a common oral disease with a high incidence. However, temporomandibular joint osteoarthritis is not easy to be detected in the early stage, and it is difficult to obtain clinical pathological specimens, so it is difficult to carry out related research. The application of digital 3D printing technology to animal models of Temporomandibular joint osteoarthritis increases the consistency of the animal models, thus promoting the study of temporomandibular joint osteoarthritis.
OBJECTIVE: To establish a standardized animal model of temporomandibular joint osteoarthritis using novel digital technology. 
METHODS:  According to the different modeling methods of unilateral anterior crossbite, 30 female Sprague-Dawley rats were randomly divided into traditional model group, digital model group, and control group (n=10 per group). Cartilage specimens of the condyles were collected at 4 and 8 weeks after modeling. The apparent morphology was observed by stereoscopic microscope. The pathological morphology was observed by hematoxylin-eosin staining and Safranin O/fast green staining. Changes in the expression of interleukin-1β and tumor necrosis factor-α were observed by ELISA, and changes in the expression of aggrecan, type II collagen and matrix metalloproteinase-13 were observed by immunohistochemical staining.
RESULTS AND CONCLUSION: Different degrees of degeneration were observed in the digital and traditional model groups. The body mass of rats in both the model groups decreased during the 1st week after intervention and subsequently demonstrated growth trend and were significantly lower than that in the control group. The results of stereoscopic microscope showed that at 4 and 8 weeks after modeling, the deformation and defect degree of the digital model group was significantly higher than that of the traditional model group. At these two time points, the Osteoarthritis Research Society International scores of the digital model group and the traditional model group were higher than those of the control group, and the Osteoarthritis Research Society International score of the digital model group was higher than that of the traditional model group (P < 0.05). Histopathological observation showed that the modified Mankin score and Osteoarthritis Research Society International score of the two model groups were significantly higher than those of the control group of the same age at 4 and 8 weeks after modeling (P < 0.05). Immunohistochemical staining results showed that at two time points, compared with the control group of the same age, the expression of aggrecan and type II collagen decreased in the traditional model group and the digital model group, while the expression of matrix metalloproteinase 13 increased (P < 0.05). ELISA results showed that the expression levels of inflammatory factors interleukin-1β and tumor necrosis factor-α in the traditional and digital model groups were higher than those in the control group at 8 weeks, and the expression levels of interleukin-1β and tumor necrosis factor-α in the digital model group were higher than those in the traditional model group (P < 0.05). To conclude, the personalized metal tube designed and produced by 3D printing technology can quickly guide the osteoarthritis-like lesions of the temporomandibular joint without repeated trial and adjustment, which is reproducible and suitable for promotion and application. 

Key words: temporomandibular joint, osteoarthritis, digital technology, 3D printing, animal model, unilateral anterior crossbite, occlusion, condylar cartilage, degenerative changes, high precision

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