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Near-infrared fluorescence probes to detect reactive oxygen species for keloid diagnosis†
Chemical Science ( IF 7.6 ) Pub Date : 2018-06-20 00:00:00 , DOI: 10.1039/c8sc01865k Penghui Cheng 1 , Jianjian Zhang 1, 2 , Jiaguo Huang 1 , Qingqing Miao 1 , Chenjie Xu 1 , Kanyi Pu 1
Chemical Science ( IF 7.6 ) Pub Date : 2018-06-20 00:00:00 , DOI: 10.1039/c8sc01865k Penghui Cheng 1 , Jianjian Zhang 1, 2 , Jiaguo Huang 1 , Qingqing Miao 1 , Chenjie Xu 1 , Kanyi Pu 1
Affiliation
Development of molecular probes for the detection of reactive oxygen and nitrogen species (RONS) is important for the pathology and diagnosis of diseases. Although an abnormally high RONS level has been identified in keloids – a benign dermal tumour developed after lesion, the ability of employing RONS probes for keloid detection has not yet been exploited. Herein, we report two near-infrared (NIR) fluorescent probes (CyTF and CyBA) that can specifically distinguish keloid fibroblasts from normal dermal fibroblasts. Both CyTF and CyBA show a 15-fold NIR fluorescence enhancement at 717 nm upon reaction with RONS. However, because CyTF has higher specificity towards ONOO− than CyBA, CyTF can detect stimulated fibroblasts in a more sensitive way, showing 3.76 and 2.26-fold fluorescence increments in TGF-β1 stimulated dermal fibroblasts and keloid fibroblasts, respectively. Furthermore, CyTF permits specific detection of implanted keloid fibroblasts in a xenograft live mouse model. Our work thus developed a new optical imaging approach that has the potential for early diagnosis and drug screening of keloids.
中文翻译:
用于检测活性氧以诊断疤痕疙瘩的近红外荧光探针†
开发用于检测活性氧和氮(RONS)的分子探针对于疾病的病理学和诊断具有重要意义。尽管在疤痕疙瘩(一种病变后形成的良性皮肤肿瘤)中发现了异常高的 RONS 水平,但使用 RONS 探针检测疤痕疙瘩的能力尚未得到开发。在此,我们报道了两种近红外(NIR)荧光探针(CyTF和CyBA),它们可以特异性地区分疤痕疙瘩成纤维细胞和正常真皮成纤维细胞。与 RONS 反应后, CyTF和CyBA在 717 nm 处显示出 15 倍的NIR 荧光增强。然而,由于CyTF对 ONOO 的特异性比CyBA更高,因此CyTF可以以更灵敏的方式检测刺激的成纤维细胞,在 TGF-β1 刺激的真皮成纤维细胞和瘢痕疙瘩成纤维细胞中分别显示 3.76 和 2.26 倍的荧光增量。此外,CyTF允许在异种移植活小鼠模型中特异性检测植入的瘢痕疙瘩成纤维细胞。因此,我们的工作开发了一种新的光学成像方法,具有对疤痕疙瘩进行早期诊断和药物筛选的潜力。
更新日期:2018-06-20
中文翻译:
用于检测活性氧以诊断疤痕疙瘩的近红外荧光探针†
开发用于检测活性氧和氮(RONS)的分子探针对于疾病的病理学和诊断具有重要意义。尽管在疤痕疙瘩(一种病变后形成的良性皮肤肿瘤)中发现了异常高的 RONS 水平,但使用 RONS 探针检测疤痕疙瘩的能力尚未得到开发。在此,我们报道了两种近红外(NIR)荧光探针(CyTF和CyBA),它们可以特异性地区分疤痕疙瘩成纤维细胞和正常真皮成纤维细胞。与 RONS 反应后, CyTF和CyBA在 717 nm 处显示出 15 倍的NIR 荧光增强。然而,由于CyTF对 ONOO 的特异性比CyBA更高,因此CyTF可以以更灵敏的方式检测刺激的成纤维细胞,在 TGF-β1 刺激的真皮成纤维细胞和瘢痕疙瘩成纤维细胞中分别显示 3.76 和 2.26 倍的荧光增量。此外,CyTF允许在异种移植活小鼠模型中特异性检测植入的瘢痕疙瘩成纤维细胞。因此,我们的工作开发了一种新的光学成像方法,具有对疤痕疙瘩进行早期诊断和药物筛选的潜力。