何首乌致药物性肝损伤的病理学特点

目的了解何首乌致药物性肝损伤(Polygonum multiflorum-associated drug induce liver injury,PM-DILI)的临床病理学特点。方法收集2019年3月1日至2021年3月1日深圳市第三人民医院收治的8例PM-DILI患者临床资料。肝穿组织进行苏木素-伊红染色、网状纤维染色、Masson三色染色、铁、铜特殊染色和免疫组织化学染色,显微镜下观察分析。结果8例PM-DILI患者男女比为1∶1,平均年龄43岁,其中6例为急性PM-DILI,2例慢性为PM-DILI。入院血清学检查异常主要包括转氨酶升高和淤胆均为7例。主要组织病理学改变为点灶状坏死8例、界面炎5例、融合坏死4例,融合坏死以肝腺泡3带为主,不伴或伴少数炎细胞浸润;胆汁淤积5例,为肝腺泡3带的肝细胞、毛细胆管内淤胆,不伴或伴少数炎细胞浸润;中央静脉炎3例;病程长者可发生肝纤维化,甚至肝硬化2例。结论肝腺泡3带为主的急性淤胆和肝细胞坏死是PM-DILI主要组织学表现,严重者可发生静脉炎等血管损伤。     

Renal Neoplasia in Tuberous Sclerosis: A Study of 41 Patients

ObjectiveTo study the clinical features and identify unique renal neoplasia subtypes and their prognostic implications in individuals with tuberous sclerosis complex (TSC).Patients and MethodsThe Mayo Clinic nephrectomy registry included 37 patients with TSC diagnosed between 1970 and 2018. Four additional patients were identified from the pathology consultation and autopsy files. All available renal tumors were further characterized using immunohistochemistry and fluorescence in situ hybridization. Clinicopathologic features and follow-up were obtained from the medical record. The American Association for Cancer Research Project GENIE registry was accessed using cBioPortal for molecular profiling of angiomyolipoma (AML).ResultsA total of 276 renal tumors from 41 patients were analyzed. Renal tumors were classified into 9 distinct morphological subtypes, with AML predominating (238 [86%]). Interestingly, all these tumors acted in a benign fashion except one renal cell carcinoma with clear cells and fibromyomatous stroma and one epithelioid AML that metastasized. Molecular profiling studies revealed that epithelioid AMLs were enriched for alterations of TP53, RB1, and ATRX. Eight patients died of direct complications of TSC, including 3 of end-stage renal disease. To date, none have died of a renal epithelial neoplasm.ConclusionThe identification of unique renal neoplasia subtypes may provide important clues to establish a diagnosis of TSC, and in the somatic setting, this finding has important implications for accurate prognostication. These tumors tend to be indolent, and only 2 of 276 tumors in our study exhibited metastatic behavior. Our results support multidisciplinary management with a focus on preservation of renal function.     

一种预测子宫内膜病变患者内膜病理类型的临床模型＊

目的 开发并评估一种用于预测子宫内膜病变患者内膜病理类型的临床模型；方法 选取2019年11月至2021年11月因妇科B超发现子宫内膜病变并于山东中医药大学附属医院行宫腔镜下内膜活检的患者，结合其病史与最小绝对收缩和选择算子法（Least absolute shrinkage and selection operator，LASSO）筛选影响内膜病变的独立危险因素，列线图（nomogram）函数建立列线图模型，采用ROC曲线下方的面积大小（Area Under Curve， AUC）、C指数（C-index）、拟合优度（Hosmer-Lemeshow）检验、自举法（bootstrap）评估及验证模型，依据列线图对纳入患者进行风险赋分，绘制ROC曲线获取风险评分的截断值，从而划分高低风险的人群；结果 阴道流血、绝经、无流产史、并发高血压、B超内膜厚度增厚、内膜回声不正常，中医证型为虚实夹杂证是发生子宫内膜癌及癌前病变的独立危险因素，评估模型所得AUC值与C-index均>0.9，Hosmer-Lemeshow检验显示P>0.05，bootstrap内部验证法所得C-index亦高于0.9，均说明模型准确度、区分度及可信度良好，当患者的风险评分总和≥177分时，属于高风险人群；结论 本模型可以预测B超提示子宫内膜病变患者的内膜病理类型为癌前或恶变型的概率并识别高风险人群。     

The oncogenic impact of RNF2 on cell proliferation,invasion and migration through EMT on mammary carcinoma

Mammary carcinoma (MC) is one of most common malignancy in women, and ring finger protein 2 (RNF2) possesses various roles in vast human tumors. In MC tissues as well as in cell lines RNF2 exhibited high expression, had significant association with tumor size, lymph node status, TNM stage, patients’ poor survival, and promoted cell proliferation, colony formation, cell migration and invasion of MC cell lines which was mediated by downregulation of E-cadherin protein. These data reveal that RNF2 protein plays a vital role in the development of MC and may be a potential therapy target of MC.     

Expression and prognostic value of FOXP1 in esophageal squamous cell carcinoma

BackgroundForkhead box protein P1 (FOXP1) has been suggested as a prognostic marker in several malignant tumors. However, the significance of FOXP1 in esophageal squamous cell carcinoma (ESCC) is still unclear. The purpose of this study was to investigate the expression pattern of FOXP1 in normal esophageal tissue and ESCC and to analyze the clinicopathological significance and prognostic value of FOXP1 in ESCC.MethodsFOXP1 was detected by immunohistochemistry using tissue microarrays containing tumor tissues and adjacent normal tissues from 270 ESCC patients with oncological follow-up data.ResultsNormal esophageal tissues predominantly showed an exclusive nuclear FOXP1 (n-FOXP1) expression pattern, and no exclusive cytoplasmic FOXP1 (c-FOXP1) staining was found. In ESCC, the expression rates of exclusive n-FOXP1-positive, exclusive c-FOXP1-positive, both nuclear and cytoplasmic positive and complete negative were 14.4%, 28.9%, 10.4% and 46.3%, respectively. High n-FOXP1 expression was significantly correlated with decreased postoperative recurrence and distant metastasis (P < 0.05). Furthermore, elevated c-FOXP1 expression was significantly associated with regional lymph node metastasis and distant metastasis (P < 0.05). High c-FOXP1 expression had an effect on shorter overall survival (OS) time, but the difference was not statistically significant (P > 0.05). Kaplan–Meier analysis showed that ESCC patients with high n-FOXP1 expression survived significantly longer than patients with low n-FOXP1 expression. Multivariate analysis confirmed that patients with high n-FOXP1 staining exhibit good prognosis and n-FOXP1 was an independent factor for ESCC prognosis.ConclusionsOur results suggest that FOXP1 plays an essential role in ESCC progression and prognosis and may be a useful biomarker for predicting survival.