Immunohistochemical characterization of cellular infiltrates in squamous cell carcinoma and Bowen's disease occurring in one patient.

We investigated populations of the infiltrating cells in Bowen's disease (BD) and squamous cell carcinoma (SCC), both of which arose in the same patient, using the Avidin-Biotin-peroxidase complex method with eight monoclonal antibodies. T lymphocytes were most predominant among infiltrating cells; NK cells, B cells, and monocytes were rarely seen in either BD or SCC. Analysis of subsets of the infiltrating T lymphocytes revealed that the number of suppressor/cytotoxic (s/c) T cells was twice that of helper/inducer (h/i) T cells in BD, while the number of s/c T cells was lower than that of h/i T cells in SCC. The immunohistochemical results in the present case differed from those of predominant infiltration of h/i T cells and of s/c T cells in three other reports of BD and SCC. These results suggest that the population of the cellular infiltrates may be modulated by the nature of tumors and by the immuno-competent state of the hosts.     

Response of quiescent and total tumor cells in solid tumors to neutrons with various cadmium ratios

Purpose: Response of quiescent (Q) and total tumor cells in solid tumors to neutron irradiation with three different cadmium (Cd) ratios was examined. The role of Q cells in tumor control was also discussed.Methods and Materials: C3H/He mice bearing SCC VII tumors received continuous administration of 5-bromo-2′-deoxyuridine (BrdU) for 5 days using implanted mini-osmotic pumps to label all proliferating (P) cells. Thirty minutes after intraperitoneal injection of sodium borocaptate-¹⁰B (BSH), or 3 h after oral administration of dl-p-boronophenylalanine-¹⁰B (BPA), the tumors were irradiated with neutrons, or those without ¹⁰B-compounds were irradiated with gamma rays. This neutron irradiation was performed using neutrons with three different cadmium (Cd) ratios. The tumors were then excised, minced, and trypsinized. The tumor cell suspensions were incubated with cytochalasin-B (a cytokinesis-blocker), and the micronucleus (MN) frequency in cells without BrdU labeling (Q cells) was determined using immunofluorescence staining for BrdU. The MN frequency in total (P + Q) tumor cells was determined from tumors that were not pretreated with BrdU. The sensitivity to neutrons was evaluated in terms of the frequency of induced micronuclei in binuclear tumor cells (MN frequency).Results: Without ¹⁰B-compounds, the MN frequency in Q cells was lower than that in the total cell population. The sensitivity difference between total and Q cells was reduced by neutron irradiation. Relative biological effectiveness (RBE) of neutrons compared with gamma rays was larger in Q cells than in total cells, and the RBE values for low-Cd-ratio neutrons tended to be larger than those for high-Cd-ratio neutrons. With ¹⁰B-compounds, MN frequency for each cell population was increased, especially for total cells. This increase in MN frequency was marked when high-Cd-ratio neutrons were used. BPA increased the MN frequency for total tumor cells more than BSH. Nevertheless, the sensitivity of Q cells treated with BPA was lower than that in BSH-treated Q cells. This tendency was clearly observed in high-Cd-ratio neutrons.Conclusion: From the viewpoint of enhancing the Q-cell sensitivity, tumors should be irradiated with high-Cd-ratio neutrons after BSH administration. However, normal tissue reaction remains to be examined because of its low tumor-to-normal tissue and tumor-to-blood biodistribution ratios.     

华蟾素胶囊联合TN化疗方案对中晚期宫颈癌放疗患者血清SCC、TSGF水平及生存质量的影响

目的:探讨华蟾素胶囊联合TN化疗方案(紫杉醇+奈达铂)在中晚期宫颈癌放疗患者中的应用效果。方法:选取中晚期宫颈癌放疗患者71例,按照随机数字表法分组,对照组35例给予TN化疗方案治疗,观察组36例给予TN化疗方案+华蟾素胶囊治疗,观察比较两组临床疗效及治疗前后血清鳞状细胞癌相关抗原（SCC）、肿瘤特异性生长因子（TSGF）水平及生存质量各维度评分变化情况,并统计两组毒副反应发生情况及1年、2年、3年生存率。结果:观察组临床缓解率为83.33%（30/36）,高于对照组57.14%（20/35）（P＜0.05）;治疗4个疗程后观察组血清SCC、TSGF水平低于对照组（P＜0.05）;观察组便秘、腹泻及恶心呕吐发生率与对照组比较,差异无统计学意义（P＞0.05）;观察组白细胞下降发生率为11.11%（4/36）,低于对照组31.43%（11/35）（P＜0.05）;治疗4个疗程后观察组认知、角色、躯体、社会及情绪功能生存质量评分高于对照组（P＜0.05）;观察组1年生存率为91.67%（33/36）、2年生存率为86.11%（31/36）、3年生存率为77.78%（28/36）,与对照组（91.43%、85.71%、74.29%）比较,差异无统计学意义（P＞0.05）。结论:TN化疗方案联合华蟾素胶囊可降低中晚期宫颈癌放疗患者血清TSGF、SCC水平,提高其生存质量,疗效确切,安全性高。     

食管癌患者手术治疗前后血清CEA、SCC、VEGF检测的临床意义

目的:探讨了食管癌患者手术治疗前后血清癌胚抗原(CEA)、鳞状细胞癌相关抗原(SCC)和血管内皮生长因子(VEGF)水平的变化及临床意义。方法:应用放免法和酶联法对36例食管癌患者进行了血清CEA、SCC和VEGF检测,并与35名正常健康人作比较。结果:手术前食管癌患者血清CEA、SCC和VEGF水平非常显著地高于正常人组(P<0.01),经手术治疗后6个月则与正常人比较无显著性差异(P>0.05)。结论:检测食管癌患者血清CEA、SCC和VEGF水平的变化对观察病情和预后判定具有重要的临床价值。     

Association between epstein barr virus and tongue squamous cell carcinoma in iranian patients

Detection of Epstein-Barr virus in oral squamous cell carcinoma suggests its involvement in the carcinogenesis of oral cavity. But, there are few studies on the incidence of EBV genome in squamous cell carcinomas at specific locations in the oral cavity like tongue and with different tumor progression. In this study the presence of EBV genome in tongue Squamous Cell Carcinoma (TSCC) in Iranian patients were investigated. Accordingly, a total of 94 cases with TSCC were firstly analyzed for the presence of viral genome through Nested PCR. Patients were divided into different groups based on their gender and the size, nodal involvement, grade and stage of their tumor. Results showed the presence of EBV genome in 72.3% of TSCCs with no significant difference between two genders, although slightly higher in females. Interestingly, PCR products of EBV genome showed a statistically significant higher distribution in TSCCs at IVa stage (p = 0.04), while a considerable low involvement of EBV genome was seen in T1-sized tumors. The result of this study further emphasizes the role of EBV in oral SCCs – mainly at tongue. This is the first investigation to clarify the association between EBV genome and different tumor size and stage in TSCCs; however, more studies in different regions and larger populations should be performed to be able to draw a firmed conclusion.     

银黄口服液联合头孢唑林钠治疗老年急性上呼吸道感染的临床研究

目的评价银黄口服液联合头孢唑林钠治疗老年急性上呼吸道感染的临床疗效。方法选取2016年9月—2017年9月四川大学华西医院收治的161例老年急性上呼吸道感染患者,根据用药差别分成对照组(80例)和治疗组(81例)。对照组患者静脉滴注注射用头孢唑林钠,1.0 g注射用头孢唑林钠溶于250 mL生理盐水,2次/d。治疗组患者在对照组治疗基础上口服银黄口服液,10 mL/次,3次/d。两组患者均连续治疗7 d。观察两组的临床疗效,比较两组患者临床症状消失时间、症状评分、血清鳞状细胞癌抗原(SCC)、超敏C反应蛋白(hs-CRP)及白细胞百分比的情况。结果治疗后,对照组和治疗组的总有效率分别是86.25%、96.30%,两组比较差异具有统计学意义(P0.05)。治疗后,两组患者血清SCC、hs-CRP及淋巴细胞百分比水平均较治疗前明显降低,同组治疗前后比较差异有统计学意义(P0.05);治疗后治疗组SCC、hs-CRP及淋巴细胞百分比显著低于对照组,两组比较差异具有统计学意义(P0.05)。治疗后,治疗组患者退热时间、咽喉肿胀消退时间均明显短于对照组,两组比较差异具有统计学意义(P0.05)。治疗后,两组患者症状积分均较治疗前显著降低,同组治疗前后比较差异有统计学意义(P0.05);治疗后治疗组症状积分显著低于对照组,两组比较差异具有统计学意义(P0.05)。结论银黄口服液联合头孢唑林钠治疗老年急性上呼吸道感染具有较好的临床疗效,能显著改善患者临床症状,减轻患者炎症程度,具有一定的临床推广应用价值。