Foxp1及Ki-67在皮肤基底细胞癌的表达

目的:检测皮肤基底细胞癌(BCC)组织中Foxp1和Ki-67蛋白的表达.方法:采用免疫组化方法检测BCC组织石蜡切片中Foxp1和Ki-67蛋白的表达.结果:40例BCC标本中Foxp1蛋白的表达率为82.5%,Ki-67蛋白的表达率为75%,均显著高于对照组(均P＜0.01).结论:Foxp1和Ki-67可能参与BCC的发生和发展.     

Prognostic significance of expression of p53 protein and Ki-67 antigen in well-differentiated squamous cell carcinoma of the skin

Prognostic Significance of Expression of p53 Protein and Ki-67 Antigen in Well-Differentiated Squamous Cell Carcinoma of the Skin     

皮肤基底细胞癌的超声征象与ki67表达相关性分析

目的:分析皮肤基底细胞癌的超声征象与癌组织ki67表达的相关性.方法:回顾性分析经病理确诊的83例皮肤基底细胞癌患者的超声征象与ki67的免疫组化染色结果.结果:基底细胞癌的超声征象中,病灶浸润至皮下组织者,ki67表达高于病灶局限于真皮层者;病灶内部出现液性暗区者,ki67表达高于病灶内部没有液性暗区者;Alder血...     

Foxpl及Ki-67在皮肤基底细胞癌的表达

目的：检测皮肤基底细胞癌（BCC）组织中Foxpl和Ki一67蛋白的表达。方法：采用免疫组化方法检测BCC组织石蜡切片中Foxpl和Ki-67蛋白的表达。结果：40例BCC标本中Foxpl蛋白的表达率为82．5％,Ki-67蛋白的表达率为75％,均显著高于对照组（均P〈O．01）。结论：Foxpl和Ki-67可能参与BCC的发生和发展。     

Prognostic value of Ki-67, CD31 and epidermal growth factor receptor expression in basal cell carcinoma

Recurrence of basal cell carcinoma following treatment is common, and the majority of recurrences appear in the first 3 years. We examined the original tumors of 26 basal cell carcinoma cases, 14 of whom had a recurrence after an average of 3.7 years, and 12 of whom had no recurrence during an average of 4.4 years follow-up. Using immunohistochemistry, we tested for Ki-67, CD31 and epidermal growth factor receptor expressions in the tumor tissue. The percentages of expression for Ki-67, CD31 and epidermal growth factor receptor were significantly higher in the recurrent tumors than in the non-recurrent ones. Expression of Ki-67 and CD31 was 271.57 +/- 17.91 and 58.1 +/- 9.37 for the recurrent group and 187.08 +/- 21.48 and 23.9 +/- 5.45 for non-recurrent group respectively (p<0.0001; p<0.0001). Expression of epidermal growth factor receptor was positive in all basal cell carcinoma cells. The staining intensity was strong in 57% of recurrent and 8.3% of non-recurrent tumors (p=0.014). These results show that Ki-67, CD31 and epidermal growth factor receptor expression differ between basal cell carcinomas which later recur and those that do not recur.     

The expression of CD44 glycoprotein adhesion molecules in basal cell carcinomas is related to growth pattern and invasiveness

Basal cell carcinomas (BCCs) of the skin exhibit a wide range of histological growth patterns as well as a highly variable rate of invasiveness. A large body of experimental and clinical studies supports a role for the CD44 glycoprotein family in the latter process. In the present study, we explored the distribution and the level of expression of pan-CD44, CD44v3, CD44v5 and CD44v6 in BCCs. The use of paraffin sections, combined with an antigen retrieval procedure, yielded far more detailed data than would have been possible with frozen sections. On average, the level of expression of the four CD44 isoforms studied appeared to differ relatively little. However, tumours or tumour areas consisting of thin tumour cell strands showed a significantly stronger expression of all four isoforms than those consisting of solid tumour cell groups. Furthermore, the highest CD44 expression was frequently observed in the smallest tumour cell strands in the tumour periphery. In these strands, the label seemed to be located not only at the tumour cell-tumour cell interface, as in other tumour areas, but also on the tumour cell surfaces facing the stroma. We are presently assessing the exact localization of CD44 at the cellular level by immunoelectron microscopy. In most cases, different growth patterns with significantly different levels of CD44 expression were found side by side within individual tumours. CD44 expression is therefore not a static tumour cell characteristic but is correlated with tumour architecture and tumour-stroma interaction.     

表皮生长因子受体、Ki-67在外阴营养不良组织中的表达

目的 探讨表皮生长因子受体（EGFR）、增殖细胞核抗原Ki-67 在外阴营养不良组织中的表达及其临床意义。方法 免疫组化法对160例外阴营养不良患者皮损中的EGFR、Ki-67表达进行检测,比较EGFR、Ki-67在外阴营养不良各病理类型中表达的差异,并分析其与临床病理特征的相关性。结果 EGFR、Ki-67在外阴营养不良鳞状细胞增生型、硬化苔藓型、混合型中的表达差异无统计学意义（P ＞ 0.05）;EGFR与Ki-67的表达呈正相关,r = 0.66,P ＜ 0.05;EGFR、Ki-67的阳性表达率在不同发病年龄组差异无统计学意义（P > 0.05）,在不同病程组差异有统计学意义（P ＜ 0.05）。结论 EGFR、Ki-67阳性表达率在不同病程组有差异。     

Treatment of basal cell carcinomas in patients with nevoid basal cell carcinoma syndrome

Background  Nevoid basal cell carcinoma syndrome (NBCCS) is characterized by the development of multiple basal cell carcinomas (BCCs). A major problem for these patients is the enormous amount of BCCs which can invade in the deep underlying structures, especially in the face. Different treatment modalities are used in these patients; surgical excision, Mohs micrographic surgery, cryotherapy, photodynamic therapy, ablative laser therapy and topical 5% imiquimod. There is no evidence based advice how to treat a NBCCS patient.
Objective  To give a review of the literature about the possible treatment modalities for the multiple BCCs in NBCCS patients.
Results  Literature consists mainly of case reports; no evidence based advice how to treat a NBCCS patient exists. Multiple treatments are available (surgical and non-surgical), and a lot of them can be combined. Treatment in a megasession is an option to diminish the medical and social inconvenience for the patient.

Conflicts of interest

None declared     

GLUT-1、Ki-67在皮肤肿瘤中的表达及意义

目的：探讨葡萄糖转运蛋白-1（GLUT-1）在脂溢性角化病（SK）、日光性角化病（AK）、Bowen病（BD）、鳞状细胞癌（SCC）中的表达及其与细胞增殖因子Ki-67之间的关系。方法：采用免疫组化法检测了95例不同皮肤肿瘤GLUT-1及Ki-67的表达。结果：GLUT-1及Ki-67在SK及正常皮肤都不表达,在AK、BD及SCC表达上调,并且二者的阳性表达强度间具有正相关性。结论：GLUT-1在恶性皮肤肿瘤中表达上调,与肿瘤的侵袭和转移有关。其表达强度可作为判断皮肤肿瘤恶性程度的检测指标,对诊断及鉴别诊断具有参考价值。     

Treatment of 208 extensive basal cell carcinomas with Mohs micrographic surgery

Aim With the rapidly increasing number of basal cell carcinomas in Europe, a close look at Mohs Micrographic Surgery (MMS) is timely. Subject We report the results of MMS in the Netherlands, as treatment for extensive basal cell carcinomas. Methods Patients (n= 198) with extensive basal cell carcinoma (n= 208) were treated with MMS. The mean follow up period was 6.4 years. Results Four of 208 BCCs recurred. Conclusions Considering a recurrence rate of only 2% for the treatment of extensive and mainly recurrent basal cell carcinomas, we suggest that MMS provides the best prospect for total tumour removal.     

Sprouty 2在皮肤鳞状细胞癌中低表达并与E-cadherin、Ki-67的表达相关

目的检测皮肤鳞状细胞癌(CSCC)组织中Sprouty 2、E-cadherin(E-cad)和Ki-67的表达及定位,并分析Sprouty 2与E-cad、Ki-67的相关性。方法收集2018年3—7月南方医科大学皮肤病医院15例头面部CSCC患者的癌组织(鳞癌组)、癌旁组织(癌旁组)和患者正常皮肤组织(病例对照组)及10例健康对照者皮肤组织(健康对照组),采用qRT-PCR、Western blot、免疫组化检测各组中Sprouty 2、E-cad和Ki-67的表达及定位,分析上述指标在不同组间的表达差异及其相关性。结果免疫组化显示,Sprouty 2表达于上述各组表皮全层的角质形成细胞胞核和胞质,E-cad表达于各组表皮全层角质形成细胞胞膜,Ki-67定位于各组表皮基底层和棘层下部角质形成细胞胞核。qRT-PCR、Western blot显示,鳞癌组中Sprouty 2 mRNA(0.03±0.03)和蛋白(0.68±0.47)的表达低于癌旁组(分别为0.28±0.36、1.40±0.72)、病例对照组(分别为0.92±0.60、1.59±0.86)和健康对照组(分别为1.12±0.56、1.71±1.28);E-cad蛋白表达亦低于其他3组,但Ki-67蛋白表达高于其他3组,差异均有统计学意义(均P<0.05)。相关性分析显示,Sprouty 2与E-cad呈正相关(r=0.59,P=0.021),与Ki-67呈负相关(r=-0.59,P=0.022)。结论Sprouty 2可能与CSCC发生发展存在相关性,且与E-cad可能在抑制肿瘤发生发展中起协同作用。     

High expression of Ki-67 and cyclin D1 in invasive extramammary Paget's disease

BACKGROUND: Invasive extramammary Paget's disease (EMPD) is commonly associated with a poor prognosis. Although early detection of micro invasion can improve the prognosis, diagnosis is not always straightforward in some EMPD cases. Several clinical studies have proposed mechanisms underlying the increased invasiveness of EMPD; however, molecular markers indicative of the invasiveness have yet to be well characterized. OBJECTIVE: The purpose of this study was to identify a reliable immunohistochemical marker for predicting the risk of invasion and metastasis in EMPD cases. METHODS: A total of 32 specimens from 23 primary EMPD cases were analyzed by immunohistochemical staining. In formalin-fixed, paraffin-embedded tissue sections, immunolabeling of tumor cells were scored by stain intensity on a four-tiered scale. Using antibodies against several tumor proliferation markers, such as Her2, p53, Ki-67, cyclin D1 and Bcl-2, we determined the correlation between the expression of these molecular markers and the types of EMPD lesions (in situ, invasive or metastatic). RESULTS: In contrast to Her2, p53 and Bcl-2, which are similarly expressed among different types of lesions, Ki-67 and cyclin D1 are expressed at significantly higher levels in invasive lesions than in situ lesions (P<0.01 and P<0.05, respectively). Furthermore, the mean of the sum of Ki-67 and cyclin D1 expression scores was significantly higher in invasive lesions, compared to the scores obtained for in situ lesions. In addition, the difference was more significant (P相似文献   

Ki-67、PCNA在银屑病和扁平苔藓皮损中的表达

目的 研究Ki-67和增殖细胞核抗原(PCNA)在银屑病和扁平苔藓皮损处表达的一致性.方法 应用免疫组化法检测扁平苔藓和银屑病患者皮损处Ki-67及PCNA表达.结果 Ki-67在扁平苔藓和银屑病皮损处呈阳性表达,PCNA在扁平苔藓和银屑病皮损处呈强阳性表达,PCNA阳性细胞百分率较Ki-67高(P<0.001),两者在银屑病和扁平苔藓皮损处表达的一致性较差(k=0.08).结论 Ki-67和PCNA在银屑病和扁平苔藓皮损处表达一致性差,可能Ki-67比PCNA更具有特异性.     

Prognostic value of Ki67 antigen expression in basal cell carcinomas

Summary Recurrence of basal cell carcinoma (BCC) following treatment is a common event and long-term follow-up of all patients presenting with a primary BCC has been recommended. Proliferation indices have been recognized as important prognostic factors in several tumour types in a variety of cancer systems, being significantly elevated in more aggressive lesions. We have examined 51 BCCs (17 non-recurrent tumours [group 1]. 17 original tumours which later recurred [group 2-0]. and the corresponding 17 recurrent specimens [group 2-R] for Ki67 antigen expression, a proliferalionassociated antigen using immunohistochemistry with the monoclonal antibody MIB1. There was a significant increase in the percentage positive for MIB1 in the Group 2-0 as compared with the group 1 BCCs (P相似文献   

Fas、Bcl-2、Ki-67在尖锐湿疣皮损中的表达

目的;探讨尖锐湿疣（ＣＡ）细胞Ｆａｓ,Ｂｃｌ－２,Ｋｉ－６７表达的意义。方法：对２８例ＣＡ用免疫组化法,观察Ｆａｓ,Ｂｃｌ－２及Ｋｉ－６７的阳性表达。     

尖锐湿疣组织及邻近组织中P16和Ki-67的表达

目的: 检测P16和Ki-67在尖锐湿疣组织、邻近外观正常组织中的表达.方法: 免疫组化SP法检测43例CA组织及其邻近外观正常组织中P16和Ki-67的表达,并以18例正常组织做对照.结果:在CA组织、邻近外观正常组织以及正常对照组织中,P16的阳性表达率分别为44.19%、16.28%、11.11%,CA组与后两组间差异均有统计学意义(P<0.01和P<0.05),后两组之间差异无统计学意义(P＞0.05).Ki-67的阳性表达率分别为88.37%、27.91%、27.78%,CA组与后两组间差异均有统计学意义(P<0.01),后两组之间差异无统计学意义(P＞0.05).结论: P16和Ki-67在CA组织中表达增高,导致细胞周期失控,并促使细胞异常增殖.     

Immunohistological detection of proliferating cells in normal and psoriatic epidermis using Ki-67 monoclonal antibody

Ki-67 monoclonal antibody (mAb) has been suggested to react only with proliferating cells. In order to study epidermal proliferating cells, immunohistological staining was performed with Ki-67 on 14 skin specimens from normal subjects and 30 from patients suffering from psoriasis. Staining of nuclei by Ki-67 was clearly observed in the epidermis. In normal epidermis, Ki-67+ cells were sparse in the basal layer (L1) and next upper layer (L2), while in psoriatic epidermis, they were abundant in L1, L2 and a few layers above L2. The percentage of positive cells in L1 of normal and psoriatic skin were 4.5 and 54%, respectively. Double staining (Ki-67 and S phase stain using bromodeoxyuridine) was also performed, and the results showed that: 1) the distribution patterns of Ki-67+ cells and those of S phase cells were similar in every section examined; 2) Ki-67 stained almost all S phase cells, and 3) Ki-67 also recognized considerable numbers of non-S phase cells. Therefore our data indicate that Ki-67 can detect a certain population of epidermal proliferating cells that includes S phase cells. Although it remains unclear whether all the proliferating cells in the epidermis can be detected by this mAb, we suggest that Ki-67 staining is an easy and useful technique for evaluating the proliferative activity of the epidermis.     

窄谱中波紫外线治疗前后银屑病皮损中CDla+DC、Ki-67的表达

SI评分与Ki-67表达相关(r=0.29,P<0.05).银屑病皮损的严重程度PASI评分与CDla抗原的表达量之间无相关性(r=-0.27,P>0.05).结论 NB-UVB可以通过调节皮肤免疫系统达到治疗目的 .银屑病患者皮损中Ki-67表达水平与银屑病皮损的严重程度PASI评分有关.