0引言恶性肿瘤难以根治的一个非常重要的原因在于难以早期发现和早期诊断。随着免疫学技术与分子生物学技术的发展和进步,肿瘤的免疫学诊断和基因诊断为肿瘤的早期诊断提供了可能。目前,发现了许多基因和基因产物对肿瘤诊断有所帮助。本文主要介绍一个新的热点基因———cap43 0 Introduction A very important reason why malignant tumors are difficult to cure is the difficulty of early detection and early diagnosis. With the development of immunological technology and molecular biology technology, the immunological diagnosis and gene diagnosis of tumors provide the possibility of early diagnosis of tumors. Currently, many genes and gene products have been found useful in the diagnosis of tumors. This article mainly introduces a new hot spot gene --- cap43