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The clinicopathologic features of intraductal papillary mucinous neoplasms of the pancreas

QIN Xinyu, LIU Fenglin

《医学前沿（英文）》 2007年第1卷第2期页码 121-125 doi: 10.1007/s11684-007-0023-5

摘要： Since first described in 1982, intraductal papillary mucinous neoplasm (IPMN) has been the preferred term to describe the proliferation of the pancreatic ductal epithelium. It is totally different from pancreatic carcinoma in epi demiology, histology, pathology and prognosis. According to the site of involvement, IPMNs are classified into three categories, i.e. main duct type, branch duct type, and combined type. Most branch duct IPMNs are benign, whereas the other two types are often malignant. A large branch duct IPMN and marked dilation of the main pancreatic duct indicate the presence of adenoma at least. The additional existence of large mural nodules increases the possibility of malignancy in all types. The prognosis is more favorable after complete resection of benign and non-invasive malignant IPMNs. Malignant IPMNs that become more aggressive after parenchymal invasion necessitate adequate lymph node dissection. On the other hand, asymptomatic branch duct IPMNs without mural nodules can be observed without the need for resection for a considerable period of time. Our review addresses available data, current understanding, controversy, and future directions about IPMNs.

关键词： available additional existence necessitate intraductal papillary non-invasive

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An analysis of clinico-pathologic features of intraductal papillary mucinous neoplasm of the pancreas

LOU Wenhui, JIN Dayong, WANG Dansong, XU Xuefeng, KUANG Tiantao, QIN Xinyu

《医学前沿（英文）》 2007年第1卷第2期页码 173-176 doi: 10.1007/s11684-007-0032-4

摘要： The natural history and clinical manifestation of resected intraductal papillary mucinous neoplasm (IPMN) of the pancreas were elucidated, and based on this, a retrospective pancreatic database was reviewed to identify patients with IPMN who were surgically managed in our department from 1999 to June 2006. Pathologic rereview of each case was performed, and the clinico-pathologic features were examined. Student s test and analysis were used to identify factors associated with malignancy. Fifty-one patients were identified. There were 33 males and 18 females. One patient s pancreas was unresectable, two patients underwent a total pancreatectomy, 42 patients had a pancreatecoduodenectomy and five patients had distal pancreatectomy. Main-duct type carcinoma was identified in 24 patients; branch-duct type in 15 patients, and mixed type in 12 patients. Invasive carcinoma was present in 35 patients. Weight loss and jaundice occurred more commonly in the invasive group. The average serum CA19-9 level was significantly higher in the invasive group (1542μ 94.5μ). The average diameter of the pancreatic duct was also wider in the invasive group (8.7 mm 4.3 mm). Significant predictors of malignant IPMNs included weight loss, jaundice, a high level of serum CA19-9, a large pancreatic duct and main-duct type carcinoma.

关键词： diameter Pathologic rereview invasive unresectable intraductal papillary

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Are the SNPs of NKX2-1 associated with papillary thyroid carcinoma in the Han population of Northern

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《医学前沿（英文）》 2014年第8卷第1期页码 113-117 doi: 10.1007/s11684-014-0310-x

摘要：

Papillary thyroid carcinoma (PTC) is one of the most common tumors of the thyroid gland. The common risk factors of PTC include ionizing radiation, positive family history, and thyroid nodular disease. PTC was identified in Europeans by conducting a genome-wide association study, and a strong association signal with PTC was observed in rs944289 and NKX2-1 (located at the 14q13.3 locus), which was probably the genetic risk factor of PTC. This study aimed to examine the association of this gene with PTC in Chinese. A total of 354 patients with PTC and 360 healthy control subjects from the Han population of Northern China were recruited in the study. These individuals were genotyped to determine rs12589672, rs12894724, rs2076751, and rs944289. The association of rs944289 with PTC was obtained (C vs. T, P=0.027, OR=1.264, 95% CI=1.026-1.557; and C/C-C/T vs. T/T, P=0.034, OR=1.474, 95% CI=1.028-2.112). Conducting a subgroup analysis, we found a marginal difference in the allele frequency distribution of rs944289 (adjusted P=0.062) between the patients with PTC and multi-nodular goiter and the control subjects. We also observed an interaction (P=0.029; OR=2.578, 95% CI=1.104-6.023) between rs944289 and diabetes in patients with PTC. In conclusion, rs944289 was associated with an increased risk of PTC in the Han population of Northern China, but no clear association was observed in either of the tag single nucleotide polymorphisms of NKX2-1.

关键词： NKX2-1 papillary thyroid carcinoma the Han population of Northern China association

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甲状腺乳头状癌菌群失调及与肿瘤信号通路异常的相关性研究 Article

喻爽, 丁彦强, 王雪洁, Siu Kin Ng, 曹思婷, 刘伟鑫, 郭朱明, 谢宇彬, 洪澍彬, 许丽霞, 李晓星, 李杰, 吕伟明, 彭穗, 李延兵, 沈祖尧, 于君, 肖海鹏

《工程（英文）》 2023年第28卷第9期页码 179-192 doi: 10.1016/j.eng.2023.01.007

摘要：

研究表明微生态失调在多种肿瘤的发生发展中起至关重要的作用。然而，对于甲状腺肿瘤中细菌是否参与肿瘤的发生仍不清楚。本研究中，我们旨在探索甲状腺组织中的菌群特征及其对甲状腺乳头状癌（PTC）的作用。我们同时对 340 例PTC和甲状腺良性结节（BTN）患者的肿瘤组织及其邻近正常组织进行菌群分析和转录组测序。在PTC、BTN及其邻近无肿瘤组织中鉴定出明显不同的菌群特征。我们通过免疫组化染色、细菌原位杂交和电镜观察验证了甲状腺组织内细菌的存在。与BTN相比，我们发现在PTC中有17个菌属存在显著丰度差异，其中PTC中富集菌Rhodococcus、Neisseria、Streptococcus、Halomonas和Devosia存在促癌作用；以及丰度降低的Amycolatopsis则可能有抑癌作用。这些丰度存在明显差异的细菌可以鉴别PTC组织（PTC-T）与BTN组织（BTN-T），曲线下面积（AUC）为81.66%。微生物网络分析表明，PTC组织内细菌间的相互关联性高于BTN组织。同时，在合并桥本甲状腺炎组织的PTC中发现与免疫相关的菌属（Erwinia、Bacillus 和 Acinetobacter）明显富集。此外，我们联合转录组测序分析提示PTC富集菌与肿瘤相关信号通路的关键基因如BRAF、KRAS、IRAK4、CTNNB1、PIK3CA、MAP3K7 和 EGFR存在正相关性。总的来说，我们的研究结果表明，甲状腺肿瘤组织内存在菌群失调，并可能通过肿瘤相关信号通路参与PTC的发生。