对来自小鼠卵巢癌模型的生殖组织的多光子和荧光图像进行定量分析,有望实现早期疾病检测。
Quantification of multiphoton and fluorescence images of reproductive tissues from a mouse ovarian cancer model shows promise for early disease detection.
机构信息
University of Arizona, College of Optical Sciences, Tucson, Arizona, United States.
University of Arizona, Department of Biomedical Engineering, Tucson, Arizona, United States.
出版信息
J Biomed Opt. 2019 Sep;24(9):1-16. doi: 10.1117/1.JBO.24.9.096010.
Ovarian cancer is the deadliest gynecologic cancer due predominantly to late diagnosis. Early detection of ovarian cancer can increase 5-year survival rates from 40% up to 92%, yet no reliable early detection techniques exist. Multiphoton microscopy (MPM) is a relatively new imaging technique sensitive to endogenous fluorophores, which has tremendous potential for clinical diagnosis, though it is limited in its application to the ovaries. Wide-field fluorescence imaging (WFI) has been proposed as a complementary technique to MPM, as it offers high-resolution imagery of the entire organ and can be tailored to target specific biomarkers that are not captured by MPM imaging. We applied texture analysis to MPM images of a mouse model of ovarian cancer. We also conducted WFI targeting the folate receptor and matrix metalloproteinases. We find that texture analysis of MPM images of the ovary can differentiate between genotypes, which is a proxy for disease, with high statistical significance (p < 0.001). The wide-field fluorescence signal also changes significantly between genotypes (p < 0.01). We use the features to classify multiple tissue groups to over 80% accuracy. These results suggest that MPM and WFI are promising techniques for the early detection of ovarian cancer.
卵巢癌是最致命的妇科癌症,主要是因为诊断较晚。卵巢癌的早期发现可以将 5 年生存率从 40%提高到 92%,但目前还没有可靠的早期检测技术。多光子显微镜(MPM)是一种对内源性荧光团敏感的相对较新的成像技术,具有巨大的临床诊断潜力,尽管它在卵巢中的应用受到限制。宽场荧光成像(WFI)已被提议作为 MPM 的补充技术,因为它可以提供整个器官的高分辨率图像,并可以针对 MPM 成像无法捕获的特定生物标志物进行定制。我们应用纹理分析对卵巢癌小鼠模型的 MPM 图像进行了分析。我们还针对叶酸受体和基质金属蛋白酶进行了 WFI 检测。我们发现,卵巢 MPM 图像的纹理分析可以区分基因型,这是疾病的一个指标,具有很高的统计学意义(p<0.001)。不同基因型之间的宽场荧光信号也有显著变化(p<0.01)。我们使用这些特征将多个组织群分类到 80%以上的准确率。这些结果表明,MPM 和 WFI 是卵巢癌早期检测的有前途的技术。