摘要目的 探讨眼部慢性炎症相关病原微生物:鹦鹉衣原体(Cps)、沙眼衣原体(Ctr)、肺炎衣原体(Cpn)、单纯疱疹病毒(HSV)1和2及腺病毒(ADV)8和19与眼附属器黏膜相关淋巴组织结外边缘区淋巴瘤(MALT淋巴瘤)之间的关系,为探寻眼附属器MALT淋巴瘤的病因及发病机制提供线索.方法 收集原发性眼附属器淋巴增生性病变石蜡包埋组织标本68例,其中MALT淋巴瘤38例,非MALT淋巴瘤3例(弥漫性大B细胞淋巴瘤2例,滤泡性淋巴瘤l例),慢性炎症27例.提取以上组织的DNA,并以PCR扩增来控制质量,选取质量合格的DNA,应用touchdown enzyme time-release PCR(TETR-PCR)法,分别检测Cps、Ctr、Cpn、HSV1和2及ADV8和19的感染状况.结果 所有样本的DNA长度均达100 bp,适用于TETR-PCR法检测感染源.其中,Cps、Ctr及ADVl9在38例MALT淋巴瘤、3例非MALT淋巴瘤及27例慢性炎症中的感染率均为0;Cpn在MALT淋巴瘤中有2例为阳性(5.3%,2/38),但在非MALT淋巴瘤和慢性炎症中均为阴性(P>0.05,Fisher确切概率法);HSV1和2及ADV8在慢性炎症中均有1例阳性(1/27),但在MALT淋巴瘤及非MALT淋巴瘤中均为阴性(P>0.05,Fisher确切概率法).结论 中国眼附属器MALT淋巴瘤的发生与Cps、Ctr、Cpn、HSV1和2及ADV8和19的感染无明显相关性.

abstractsObjective To study the role of pathogenic microorganisms commonly associated with chronic eye disease, including Chlamydia psittaci, Chlamydia trachomatis, Chlamydia pneumoniac, herpes simplex virus (HSV) type 1 and type 2, and adenovirus type 8 and type 19, in the development of primary ocular adnexul mucosa-associated lymphoid tissue (MALT) lymphoma in Chinese patients. Methods Sixty-eight archival cases of primary ocular adnexal lymphoproliferative lesions, including 38 cases of MALT lymphoma, 3 cases of non-MALT lymphoma and 27 cases of chronic inflammation, were enrolled into the study. DNA was extracted from the paraffin-embedded tissue samples. The presence of DNA of C. psittaci,C. trachomatis, C. pneumoniae, HSV type 1, HSV type 2, adenovirns type 8 and adenovirus type 19 were analyzed by multiplex touchdown enzyme time-release polymerase chain reaction (TETR-PCR). Results All of the specimens yielded PCR products of over 100 base pairs and were thus suitable for TETR-PCR screening of infectious agents. The prevalence of DNA of C. psittaci, C. trachomatis and adenovirus type 19 were 0 in MALT lymphoma, non-MALT lymphoma and chronic inflammation. There were 2 cases positive for C. pneumoniae DNA, amongst the 38 cases of MALT lymphoma studied (5. 3%, 2/38). HSV type 1, HSV type 2 and adenovirus type 8 DNA was found in each of the 3 patients with chronic inflammation.Conclusion The study indicates that C. psittaci, C. trachomatis, C. pneumoniae, HSV type 1, HSV type 2, adenovims type 8 and adenovims type 19 probably play little role in the pathogenesis of ocular adnexal MALT lymphoma in Chinese patients.