Wang Zhaoyan, He Ying, Wang Qian, Liu Weipeng, Yang Yinxiang, Zhou Haipeng, Ma Xuexia, Hu Caiyan, Luan Zuo, Qu Suqing
Department of Pediatrics, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China.
Bioengineering (Basel). 2025 Apr 25;12(5):457. doi: 10.3390/bioengineering12050457.
Premature white matter injury (PWMI) represents the principal form of brain injury in preterm infants, and effective therapies remain elusive. Transplantation of oligodendrocyte precursor cells (OPCs) emerges as a potential treatment for PWMI, yet the injury-induced inflammatory response may impact these cells' functionality. To date, no studies have explored the influence of inflammatory factors on the functionality of human (h) OPCs. The predominant inflammatory cytokines identified in PWMI lesions are tumor necrosis factor (TNF)-α and interleukin (IL)-1β. This study investigates the impact of these cytokines on hOPC migration, proliferation, and differentiation using the human adult neural stem cell amplification and differentiation system in vitro. Results indicate that IL-1β significantly impedes hOPC migration, while both TNF-α and IL-1β hinder proliferation and differentiation. In summary, inflammatory factors overexpressed following PWMI impede OPCs from realizing their regenerative potential. These findings underscore the necessity of modulating the post-PWMI inflammatory milieu to enhance the efficacy of transplanted cells concerning migration, proliferation, and differentiation.
早产脑白质损伤(PWMI)是早产儿脑损伤的主要形式,目前仍缺乏有效的治疗方法。少突胶质前体细胞(OPC)移植成为治疗PWMI的一种潜在方法,然而损伤诱导的炎症反应可能会影响这些细胞的功能。迄今为止,尚无研究探讨炎症因子对人(h)OPC功能的影响。在PWMI损伤中鉴定出的主要炎性细胞因子是肿瘤坏死因子(TNF)-α和白细胞介素(IL)-1β。本研究使用成人人类神经干细胞扩增和分化系统,在体外研究这些细胞因子对hOPC迁移、增殖和分化的影响。结果表明,IL-1β显著阻碍hOPC迁移,而TNF-α和IL-1β均阻碍增殖和分化。总之,PWMI后过度表达的炎症因子阻碍OPC发挥其再生潜能。这些发现强调了调节PWMI后的炎症环境对于提高移植细胞在迁移、增殖和分化方面疗效的必要性。