Ig基因由三组不连锁的基因群编码 :Igκ ,Igλ和IgH基因群。传统免疫学理论认为Ig基因只有在B淋巴细胞中表达。然而 ,近几年的研究发现在非B细胞来源的恶性肿瘤细胞中也有可能存在Ig基因的转录与表达。这一发现将为我们研究肿瘤癌变机理及肿瘤的生物治疗提供新的理论依据和研究方向 The Ig gene is encoded by three unlinked gene groups: the Igκ, Igλ and IgH gene groups. Traditional immunology theory holds that the Ig gene is only expressed in B lymphocytes. However, studies in recent years have found that Ig gene transcription and expression may also be present in non-B cell-derived malignant tumor cells. This finding will provide new theoretical basis and research direction for us to study the mechanism of canceration and tumor biological treatment.