医学
肺癌
恶性肿瘤
PTX3型
内科学
癌症
肿瘤科
生物标志物
接收机工作特性
人口
病理
胃肠病学
炎症
生物
生物化学
环境卫生
作者
Maurizio Infante,Paola Allavena,Cecília Garlanda,Manuela Nebuloni,Emanuela Morenghi,Daoud Rahal,Massimo Roncalli,Silvio Cavuto,Samantha Pesce,Marta Monari,Serenella Valaperta,Alessandro Montanelli,Daniel Solomon,Edoardo Bottoni,Valentina Errico,Emanuele Voulaz,Manuela Bossi,G. Chiesa,Eliseo Passera,Alberto Mantovani,Marco Alloisio
摘要
There is a well-established link between inflammation and cancer of various organs, but little data are available on inflammation-associated markers of diagnostic and prognostic clinical utility in pulmonary malignancy. Blood samples were prospectively collected from 75 resectable lung cancer patients before surgery and in a cohort of 1,358 high-risk subjects. Serum levels of long pentraxin 3 (PTX3) were determined by high-sensitivity ELISA. PTX3 immunostaining was evaluated by immunohistochemistry in cancer tissue. Serum PTX3 levels in the high-risk population were not predictive of developing subsequent lung cancer or any other malignancy; however, serum PTX3 values in patients with lung cancer were significantly higher compared with cancer-free heavy smokers. With a cutoff of 4.5 ng/ml, specificity was 0.80, sensitivity 0.69, positive predictive value 0.15 and negative predictive value 0.98. The receiver operating curve (ROC) for serum PTX3 had an area under the curve (AUC) of 83.52%. Preoperative serum PTX3 levels in lung cancer patients did not correlate with patient outcome, but high interstitial expression of PTX3 in resected tumor specimens was a significant independent prognostic factor associated with shorter survival (p < 0.001). These results support the potential of serum PTX3 as a lung cancer biomarker in high-risk subjects. Furthermore, PTX3 immunohistochemistry findings support the role of local inflammatory mechanisms in determining clinical outcome and suggest that local expression of PTX3 may be of prognostic utility in lung cancer patients.
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