高分子量角蛋白在前列腺增生的基底细胞中的表达

摘要

Purpose To study immunohistochemical quality of prostatic basal cell(PBC). MethodsTherty-seven of basal cell of benign prostatic hypertrophy (BPH) were studied using routine HE stavningand En Vision immunohistochemical methods. Results The positive rate of 34βE12 in PBC were 100 %;but all of the PBC were negative with Vim and SMA; the positive expression of PsAP PSA in PBC were35% ;expression of ck in the PBC was 71% and the positive rate of S-100 in PBC was onty 13.5%.Conclusions The resuts suggest that high molecular weight keratin 34βE12 is a specific marker to PBC;PBC has ability to adenoid epithelia differentiation of prostate and hyperplasia itself. PBC play an importantrole in growth, hyperplasia and disease of prostate. The PBC unlike myoepithelia, the ability to myoepitheliadifferentiation is to go a step further controversial opinion.%目的 为了探讨前列腺基底细胞的免疫组化特征。方法 采用常规HE染色及免疫组化En Vision两步法，用高分子角蛋白34βE12、广谱CK、Vim、PSA、PsAP、S-100、SMA7种标记物对37例良性前列腺增生(BTH)的基底细胞进行检测观察。结果 所有37例BPH的基底细胞对高分子角蛋白34βE12均呈胞质阳性反应，阳性率100％；大部分基底细胞(71％)对广谱CK表达阳性；PsAP及PSA在基底细胞中的阳性率均为35%；S-100蛋白阳性率较低，仅13.5％；而Vim及SMA则均呈阴性反应。结论 高分子角蛋白34β12是前列腺基底细胞的特异性标记物；前列腺基底细胞具有向前列腺腺泡上皮分化的能力，也可引起局部自身增殖，故其在前列腺的生长、增生甚至疾病的发生中起着一定的作用；前列腺基底细胞与肌上皮细胞是不同的，但其是否具有向肌上皮分化或化生仍有待进一步探讨。