在zoledronate应用和手术干预后,面和额外骨的巨细胞两极化发生变化 - 一个
Ann-Kristin Struckmeier1,2,3, Falk Wehrhan1,2,3, Raimund Preidl1,2,3
1Department of Oral and Cranio-Maxillofacial Surgery, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany.
Frontiers in immunology
|June 9, 2023
概括
骨比其他骨具有更多的炎症性巨细胞,使它们易患与药物相关的骨缩症 (MRONJ). 佐乐德罗纳酸和拔牙会加剧这种炎症,这表明巨细胞针对MRONJ的预防和治疗.
科学领域:
- 免疫学 免疫学 免疫学
- 口腔和牙面部外科手术
- 在瘤学瘤学.
背景情况:
- 与药物相关的下巴骨硬化 (MRONJ) 仅影响下巴骨,但其致病性和骨的独特易受性仍然不清楚.
- 巨细胞越来越多地涉及到MRONJ病原体,突出显示需要了解它们的作用和分布.
研究的目的:
- 为了比较面骨与外骨中的巨细胞群.
- 在MRONJ的背景下,研究甲酸盐 (Zol) 和手术干预对巨细胞群的影响.
主要方法:
- 一个体内研究涉及120只Wistar大鼠,随机分为四组.
- 施用佐莱德酸盐 (Zol) 和引入外科手术 (拔牙,骨切除术).
- 免疫组织化学用于量化下巴和骨样本中的CD68+和CD163+巨细胞群.
主要成果:
- 与骨相比,下表现出明显更高的巨细胞数量和更有利于炎症的环境.
- 拔牙增加了细胞数量和下中的炎症标志物.
- 佐乐德罗纳特的应用放大了这些炎症变化.
结论:
- 骨和骨之间存在显著的免疫学差异,这可能解释了对MRONJ的倾向.
- 骨的炎症性状态加剧,因龙酸和拔牙而加剧,可能导致MRONJ的发病.
- 向巨细胞为MRONJ预防和治疗提供了一个有希望的策略,这可能对与双酸盐相关的抗瘤作用产生潜在影响.
相关概念视频
Osteoclasts in Bone Remodeling
3.0K
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
3.0K
Bone Remodeling
38.4K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
38.4K


