Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University Medical Center, Xi'an, Shannxi 710061, China.
J Immunol Res. 2014;2014:268479. doi: 10.1155/2014/268479. Epub 2014 Apr 10.
PAM4, a new monoclonal antibody (MAb) known as clivatuzumab, is highly reactive with pancreatic cancer and precursor lesions. It is absent from the normal tissues and has limited reactivity with nonpancreatic cancer. The detailed characteristic of the PAM4 epitope is unknown but recent studies have shown that it is dependent on MUC1 glycosylation status. The limited PAM4 expression pattern makes it an attractive candidate for management of pancreatic adenocarcinoma. In addition, PAM4 is a serum biomarker for diagnosis of pancreatic cancer. Several different radiolabeled immunodiagnostic and immunotherapeutic agents of PAM4 have been developed and some are being evaluated in preclinical and/or clinical studies. The review will focus on PAM4 and its potential utility for the diagnosis, radioimmunodetection, and radioimmunotherapy of pancreatic cancer.
PAM4 是一种新的单克隆抗体(MAb),称为 clivatuzumab,与胰腺癌和前体病变高度反应。它不存在于正常组织中,与非胰腺癌的反应性有限。PAM4 表位的详细特征尚不清楚,但最近的研究表明它依赖于 MUC1 糖基化状态。有限的 PAM4 表达模式使其成为管理胰腺腺癌的有吸引力的候选物。此外,PAM4 是诊断胰腺癌的血清生物标志物。已经开发了几种不同的放射性标记免疫诊断和免疫治疗剂的 PAM4,并且一些正在进行临床前和/或临床研究评估。该综述将重点介绍 PAM4 及其在胰腺癌的诊断、放射免疫检测和放射免疫治疗中的潜在用途。