Dexamethasone and lactoferrin induced PMN-MDSCs relieved inflammatory adverse events of anti-cancer therapy without tumor promotion.

Dexamethasone and lactoferrin induced PMN-MDSCs relieved inflammatory adverse events of anti-cancer therapy without tumor promotion.
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地塞米松和乳铁蛋白诱导的 PMN-MDSC 可缓解抗癌治疗的炎症不良事件,且不会促进肿瘤。

DOI:
10.1038/s42003-021-01769-z
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发表时间:
2021-02-26
影响因子:
5.9
通讯作者:
Xing YF
Xing YF
中科院分区:
生物学2区
文献类型:
--
作者:
Li X;Chen J;Chen YJ;Qiao YD;Zhao LY;Jiang N;Wu XY;Xing YF

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在这个免疫检查点抑制剂盛行的时代,抗癌治疗的炎症性不良事件继续构成重大挑战。糖皮质激素作为治疗的中流砥柱,因严重的副作用而受到限制。糖皮质激素可诱导髓系抑制细胞(MDSCs),乳铁蛋白诱导的多形核MDSCs(PMN-MDSCs)可缓解炎症。与地塞米松(DXM)或乳铁蛋白单独作用相比,地塞米松(DXM)和乳铁蛋白(Lactoferrin)联合作用可增加PMN-MDSCs的体外生成。DXM/Lactoferrin PMN-MDSCs在基因表达谱上与体内肿瘤PMN-MDSCs不同。DXM通过诱导乳铁蛋白受体LRP1上调髓系细胞对乳铁蛋白的反应。DXM/Lactoferrin PMN-MDSCs具有抗菌能力,增加PGE2产量,提高生存能力,减少肿瘤组织归巢。转移DXM/Lactoferrin PMN-MDSCs可有效缓解顺铂诱导的急性肾功能衰竭、博莱霉素诱导的间质性肺炎和过敏性肺炎,而不会促进肿瘤的发展。我们的研究表明,DXM/Lactoferrin PMN-MDSCs是一种非常有前途的抗癌治疗炎性不良事件的细胞治疗方法。
In this era of immune checkpoint inhibitors, inflammatory adverse events of anti-cancer therapies continue to pose a major challenge. Glucocorticoids, as the mainstay, were limited by serious side effects. Glucocorticoids induce myeloid-derived suppressor cells (MDSCs), and lactoferrin-induced polymorphonuclear MDSCs (PMN-MDSCs) were shown to relieve inflammatory conditions. Combined treatment with dexamethasone (DXM) and lactoferrin increased the generation of PMN-MDSCs in vitro (DXM/lactoferrin PMN-MDSCs) compared to DXM or lactoferrin treatment alone. DXM/lactoferrin PMN-MDSCs were distinct from tumor PMN-MDSCs in vivo with regard to gene expression profiles. DXM upregulated the myeloid cell response to lactoferrin by inducing the lactoferrin receptor Lrp1. DXM/lactoferrin PMN-MDSCs presented anti-bacterial capability, increased PGE2 production, increased survival capability, and decreased tumor tissue homing. Transfer of DXM/lactoferrin PMN-MDSCs relieved cisplatin-induced acute kidney failure, bleomycin-induced interstitial pneumonia, and allergic pneumonitis effectively without promoting tumor development. Our study shows that DXM/lactoferrin PMN-MDSCs are a promising cell therapy for inflammatory adverse events of anti-cancer therapies.
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