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在糖尿病足中识别抗炎M2类巨细胞

Juan V Trujillo-Paez¹, Perla E Campos-Rincón², Adrian Rodríguez-Carlos³

¹CONAHCYT-Biomedical Research Unit-Zacatecas, Mexican Institute for Social Security IMSS, Zacatecas, Mexico.

|July 30, 2025

概括

糖尿病足显示CD68+细胞增加,但M2巨细胞 (CD163+) 没有变化. 血管性标志物CD31+细胞在健康皮肤和糖尿病皮肤之间存在差异,这表明糖尿病患者的伤口愈合受损.

科学领域:

免疫学免疫学免疫学
伤口愈合治愈伤口愈合
糖尿病并发症糖尿病并发症

背景情况:

巨细胞对于免疫反应和组织平衡至关重要.
伤口中的巨细胞群异质,具有M1和M2表型.
居民巨细胞在糖尿病伤口修复中的作用尚不清楚.

研究的目的:

调查M2巨细胞群及其在糖尿病足 (DFU) 和健康皮肤中的血管性标记物.
为了比较DFU,2型糖尿病患者 (T2DM) 和健康对照中的巨细胞表型.

主要方法:

免疫组织化学用于10名健康对照组,10名T2DM患者和10名DFU患者的皮肤活检.
用单克隆抗体对抗CD68,CD163 (M2标记物) 和CD31 (血管原标记物) 进行了双重染色.
分析的重点是CD68+,CD163+和CD31+细胞,包括双阳性群体.

主要成果:

与T2DM患者相比,DFU中CD68+细胞的增加.
在不同组中没有观察到CD163+ (M2) 大菌种群的显著变化.
在DFU和健康皮肤之间发现了CD68+CD163+细胞的显著差异.
CD68+/CD31+细胞仅在健康皮肤和T2DM活检之间显示出显著差异.

结论:

在DFU中,CD68+细胞的存在增加,但不是M2巨细胞 (CD163+).
虽然M2型巨细胞很常见,但缺乏CD31+巨细胞变化表明糖尿病伤口愈合期间血管信号的潜在变化.
这些发现突出了复杂的巨细胞动态和糖尿病足的血管生成受损.

关键词:

血管新生的产生.糖尿病足部糖尿病足部巨细胞是一个巨细胞.2 型糖尿病 2 型糖尿病

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Diabetic Foot Ulcer

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