中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (19): 2982-2987.doi: 10.3969/j.issn.2095-4344.3529

• 脂肪干细胞 adipose-derived stem cells • 上一篇    下一篇

浓缩生长因子负载脂肪干细胞预防SD大鼠双膦酸盐类药物相关性颌骨骨坏死

张圣敏1,曹长红1,刘  超2   

  1. 1沧州医学高等专科学校口腔系,河北省沧州市  061001;2山东大学齐鲁医院口腔颌面外科,山东省济南市  250012
  • 收稿日期:2020-05-28 修回日期:2020-05-29 接受日期:2020-07-06 出版日期:2021-07-09 发布日期:2021-01-13
  • 通讯作者: 刘超,山东大学齐鲁医院口腔颌面外科,山东省济南市 250012
  • 作者简介:张圣敏,女,1985 年生,河北省沧州市人,汉族,2012年天津医科大学毕业,硕士,讲师,主治医师,主要从事骨组织工程研究。
  • 基金资助:
    沧州市科技计划项目(183302068),项目负责人:张圣敏

Adipose-derived stem cells integrated with concentrated growth factors prevent bisphosphonate-related osteonecrosis of the jaws in SD rats

Zhang Shengmin1, Cao Changhong1, Liu Chao2   

  1. 1Department of Stomatology, Cangzhou Medical College, Cangzhou 061001, Hebei Province, China; 2Department of Oral and Maxillofacial Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong Province, China
  • Received:2020-05-28 Revised:2020-05-29 Accepted:2020-07-06 Online:2021-07-09 Published:2021-01-13
  • Contact: Liu Chao, Department of Oral and Maxillofacial Surgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong Province, China
  • About author:Zhang Shengmin, Master, Lecturer, Attending physician, Department of Stomatology, Cangzhou Medical College, Cangzhou 061001, Hebei Province, China
  • Supported by:
    the Cangzhou Municipal Science and Technology Project, No. 183302068 (to ZSM)

摘要:

文题释义:
双膦酸盐类药物相关性颌骨骨坏死:其特征是保持在8周以上且未表现出好转的骨坏死,目前或曾经有过双膦酸盐治疗史,但没有头颈部放疗史。
唑来膦酸:是一种具有较强抑制骨吸收和潜在促进骨形成作用的双膦酸盐类药物。临床主要用于恶性肿瘤引起的骨转移、骨质疏松症、高钙血症等治疗。
浓缩生长因子:是一种结构疏松、弹性好、可塑性强、富含多种生长因子的三维网络聚合物,为干细胞增殖和分化提供了可靠的微环境。

背景:双膦酸盐类药物相关性颌骨骨坏死的病因可能涉及侵袭性牙科手术、感染、颌骨机械性损伤、免疫抑制剂和化疗药物等,但其潜在机制和治疗尚不清楚,预防是主要的临床命题。
目的:探讨浓缩生长因子负载脂肪干细胞对双膦酸盐类药物相关性颌骨骨坏死的全面预防作用。  
方法:40只SD大鼠随机分为4组:对照组、唑来膦酸组、浓缩生长因子组、脂肪干细胞联合浓缩生长因子组,每组10只。除对照组外,其他3组尾静脉注射唑来膦酸(80 μg/kg),每周1次,连续给药12周建立双膦酸盐类药物相关性颌骨骨坏死模型;对照组尾静脉注射生理盐水0.1 mL。以上4组均于第8周时拔除右侧下颌第一磨牙,浓缩生长因子组拔牙后于拔牙窝立即植入0.5 cm×0.5 cm浓缩生长因子;脂肪干细胞联合浓缩生长因子组拔牙后于拔牙窝立即植入0.5 cm×0.5 cm浓缩生长因子/脂肪干细胞复合物,对照组和唑来膦酸组拔牙后不处理;拔牙后8周过量麻醉处死大鼠,分别通过拔牙创观察、Micro-CT、苏木精-伊红染色评估牙龈再生、拔牙创周围骨组织再生情况。 
结果与结论:相对于其他3组,浓缩生长因子/脂肪干细胞复合物明显促进了拔牙创周围软组织愈合和新骨形成,减少了死骨形成量,有效预防了双膦酸盐类药物相关性颌骨骨坏死的发生。
https://orcid.org/0000-0003-4520-3031(张圣敏)

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: 干细胞, 脂肪干细胞, 双膦酸盐, 颌骨, 骨坏死, 浓缩生长因子, 骨再生, 大鼠

Abstract:

BACKGROUND: Bisphosphonate-related osteonecrosis of jaw may involve invasive dental surgery, infection, jaw injury, immunosuppressive agents and chemotherapeutic drugs, and its potential mechanism and treatment are not clear. Prevention is the main clinical proposition. 
OBJECTIVE: To explore the preventive effect of concentrated growth factors integrated with adipose-derived stem cells on bisphosphonate-related osteonecrosis of jaw. 

METHODS:  Forty Sprague-Dawley rats were randomly assigned to four groups: control group, zoledronic acid group, concentrated growth factor group, and adipose-derived stem cells combined with concentrated growth factor group (n=10 per group). Except the control group, rats in the other three groups were injected with zoledronic acid (80 μg/kg) through the tail vein once a week for 12 consecutive weeks to establish a bisphosphonate-related osteonecrosis of jaw model. Rats in the control group were injected with 0.1 mL of saline through the tail vein. The right mandibular first molar was extracted at the 8th week. In the concentrated growth factor group, 0.5 cm × 0.5 cm concentrated growth factors were implanted immediately after tooth extraction. In the adipose-derived stem cells combined with concentrated growth factor group, 0.5 cm × 0.5 cm concentrated growth factor/adipose-derived stem cell complex was implanted into the extraction socket immediately after tooth extraction. The control group and zoledronic acid group were not treated after tooth extraction. The rats were killed 8 weeks after extraction. The gingival regeneration and bone tissue regeneration around the extraction wound were detected by observation of tooth extraction wound, Micro-CT and hematoxylin-eosin staining. 
RESULTS AND CONCLUSION: Compared with other three groups, concentrated growth factor/adipose-derived stem cell complex significantly promoted the healing of soft tissue and new bone formation around tooth extraction, reduced the dead bone formation, and effectively prevented the occurrence of bisphosphonate-related osteonecrosis of jaw. 

Key words: stem cells, adipose derived stem cells, bisphosphonates, jaw bone, osteonecrosis, concentrated growth factor, bone regeneration, rats

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