目的 探究老年食管鳞癌患者单纯放疗、同步放化疗临床治疗效果。方法 选我院2018年1月—2020年12月期间90例老年食管鳞癌患者为研究对象,依据不同治疗方式将其分为对照组、观察组,各45例,分别接受单纯放疗、同步放化疗治疗,比较2组治疗效果及治疗安全性。结果 观察组治疗总有效率为75.56%,与对照组60.00%相近(P＞0.05);观察组疾病控制率为97.78%,较对照组84.44%高(P＜0.05);观察组放射性肺炎、骨髓抑制发生率为24.44%、77.78%,较对照组6.67%、48.89%高;且观察组放射性肺炎、骨髓抑制、放射性食管炎2级占比分别为17.78%、35.56%、57.78%,均较对照组2.22%、8.89%、24.44%高(P＜0.05)。结论 在老年食管鳞癌患者治疗中,与单纯放疗相比,同步放化疗可提升疾病控制能力,但会增加治疗不良反应,增加不良反应严重程度,因此在临床治疗中,需慎重选择。

Objective To explore the clinical effect of radiotherapy only and concurrent chemoradiotherapy in elderly patients with esophageal squamous cell carcinoma. Methods Ninety cases of elderly patients with esophageal squamous cell carcinoma in our hospital from January 2018 to December 2020 were selected as research objects.According to different treatment methods, they were divided into control group and observation group, 45 cases in each group.They were treated with radiotherapy and concurrent chemoradiotherapy respectively.The treatment effect and safety of the two groups were compared. Results The total effective rate of the observation group was 75.56%, which was close to the control group (60.00%, P>0.05). The disease control rate of the observation group was 97.78%, which was higher than control group (84.44%, P<0.05). The incidence of radiation pneumonia and bone marrow suppression of the observation group were 24.44% and 77.78%, which were higher than that of the control group (6.67%, 48.89%). The proportion of radiation pneumonia, bone marrow suppression, radiation esophagitis grade 2 of the observation group were 17.78%, 35.78% and 57.78% respectively, higher than that of the control group (2.22%, 8.89%, 24.44% respectively, P<0.05). Conclusion Compared with radiotherapy only, concurrent chemoradiotherapy improved the ability of disease control in elderly patients with esophageal squamous cell carcinoma, but it increased the adverse reactions and aggravated the severity of adverse reactions.Therefore, it is necessary to make a careful choice in clinical treatment.

目的 探究铁死亡相关的lncRNA在肺鳞状上皮细胞癌(简称肺鳞癌)患者中的预后意义。方法 从美国癌症和肿瘤基因图谱数据库(the Cancer Genome Atlas,TCGA)中下载肺鳞癌数据551例,包括49例正常对照样本和502例肺鳞癌患者样本。筛选出与铁死亡相关基因的共表达的lncRNA,使用单变量Cox回归进一步筛选lncRNA,然后,使用Lasso回归和多元Cox回归分构建铁死亡相关的lncRNA模型。建立基于模型的风险评分,并使用Cox回归测试其是否为独立的预后因素。铁死亡相关lncRNAs的功能富集使用基因本体(Gene Ontology)和京都基因和基因组百科全书(Kyoto Encyclopedia of Genes and Genomes)可视化。结果 4个预后铁死亡相关的lncRNA(AC253536.6,FLJ46906LUCAT,AC022150.2)显著不同,这构建了铁死亡相关的lncRNA模型。此模型将肺鳞癌患者分为低风险组和高风险组。基于模型的风险评分是肺鳞癌患者的显著独立因素(HR =2.116,95％CI=1.513~2.961;P<0.001)。此外,4个lncRNA在铁死亡过程,代谢和肿瘤经典途径中均显著富集。结论 4个铁死亡相关的lncRNAs可能是肺鳞癌患者的分子生物标志物和治疗靶标。

Objective To explore the prognostic significance of ferroptosis related lncRNAs in patients with lung squamous cell carcinoma. Methods Data of 551 lung squamous cell carcinoma cases was downloaded from the Cancer Genome Atlas (TCGA) of the United States, including 49 normal control samples and 502 lung squamous cell carcinoma samples. The lncRNAs co-expressed with genes related to ferroptosis was screened out. Univariate Cox regression was used to further screen out the lncRNAs. Then, Lasso regression and multiple Cox regression were used to construct lncRNA models related to ferroptosis. A model-based risk score system was established and Cox regression was used to test whether it was an independent prognostic factor. The functional enrichment of ferroptosis related lncRNAs were visualized using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes. Results The four prognostic ferroptosis related lncRNAs (AC253536.6, FLJ46906 LUCAT, AC022150.2) were significantly different, and the ferroptosis lncRNAs model was constrncted with them. This model divided lung squamous cell carcinoma patients into low-risk group and high-risk group. The model-based risk score was a significant independent factor for patients with lung squamous cell carcinoma (HR=2.116, 95% CI=1.513-2.961; P<0.001). In addition, the four lncRNAs were significantly enriched in metabolism and tumor classical pathways during the ferroptosis process. Conclusions The four ferroptosis lncRNAs could be molecular biomarkers and therapeutic targets for patients with lung squamous cell carcinoma.

目的 分析术前血清鳞状细胞癌相关抗原(SCCA)对宫颈鳞癌患者发生盆腔淋巴结转移的预测价值。方法 选取2018年1月—2021年1月于我院肿瘤科治疗的128例宫颈鳞癌患者作为研究对象,根据其是否发生盆腔淋巴结转移将其分为转移组(42例)和非转移组(86例)。对比2组宫颈鳞癌患者一般资料,采用多因素Logistic分析宫颈鳞癌患者发生盆腔淋巴结转移的高危因素,采用ROC曲线评估术前血清SCCA对宫颈鳞癌患者发生盆腔淋巴结转移的预测价值,通过约登指数确定最佳截断值。结果 2组患者一般资料对比,宫颈鳞癌细胞分化程度、宫颈鳞癌临床分期、宫颈鳞癌肿瘤直径大小、是否出现宫旁转移现象、是否出现脉管浸润现象、浸润深度、SCCA水平的差异有统计学意义,P<0.05;多因素Logistic分析显示宫颈鳞癌细胞分化程度、脉管浸润阳性、浸润深度、SCCA水平是宫颈鳞癌患者发生盆腔淋巴结转移的危险因素;ROC曲线分析结果显示,SCCA水平曲线下面积为0.909,最佳截断值为0.597 5 μg/L。结论 术前血清SCCA水平对宫颈鳞癌患者发生盆腔淋巴结转移具有预测价值。

Objective To analyze the predictive value of preoperative serum squamous cell carcinoma antigen (SCCA) on pelvic lymph node metastasis in patients with cervical squamous cell carcinoma.Methods A total of 128 patients with cervical squamous cell carcinoma treated in the oncology department of our hospital from January 2018 to January 2021 were selected as the research objects,and divided into metastatic group (42 cases) and non-metastatic group (86 cases) according to whether pelvic lymph node metastasis occurred.The general data of the two groups of patients with cervical squamous cell carcinoma were compared.Multivariate logistic analysis was used to analyze the risk factors for pelvic lymph node metastasis in patients with cervical squamous cell carcinoma.ROC curve was used to evaluate the predictive value of preoperative serum SCCA for pelvic lymph node metastasis in patients with cervical squamous cell carcinoma,and the optimal cut-off value was determined by Yoden index.Results When comparing the general data of the two groups of patients,the differences in the degree of cervical squamous carcinoma cell differentiation,clinical stage of cervical squamous carcinoma,tumor diameter of cervical squamous carcinoma,whether the phenomenon of parametastasis was present,whether the phenomenon of choroidal infiltration was present,depth of infiltration,and SCCA level were statistically significant,P<0.05; multi-factor logistic analysis showed that the degree of cervical squamous carcinoma cell differentiation,positive vascular invasion,depth of invasion and SCCA level were risk factors for pelvic lymph node metastasis in cervical squamous cell carcinoma patients.The results of ROC curve analysis showed that the area under the curve of SCCA level was 0.909 and the optimal cut-off value was 0.597 5 μg/L.Conclusions Preoperative serum SCCA level had good predictive value for the occurrence of pelvic lymph node metastasis in patients with cervical squamous carcinoma.

目的 探讨结肠原发性腺鳞癌和鳞癌的临床病理特征、诊断、发病机制及预后。方法 分析2例结肠原发性腺鳞癌和鳞癌的临床特点、组织学、免疫组化及基因检测特点,并结合相关文献进行讨论。结果 2例患者均因右下腹隐痛入院,平均年龄69岁,肿瘤均位于右半结肠。腺鳞癌可见腺鳞两种成分随机混合在一起,鳞癌成分免疫组化结果示CK5/6,P63均阳性,基因检测结果(ARMS-PCR法):腺鳞癌KRAS 2号外显子突变,BRAF未突变,鳞癌KRAS和BRAF均未突变。腺鳞癌患者术后放弃治疗1个月后死亡,鳞癌患者5个月后死于肝转移。结论 结肠原发性腺鳞癌/鳞癌非常少见,其临床症状与腺癌相似,但临床过程却更具侵袭性,预后相对较差,所以在临床中需得到重视。

Objective To study the clinicopathologic features, diagnosis, pathogenesis and prognosis of primary colon adenosquamous carcinoma and squamous cell carcinoma. Methods We analyzed clinical features, histological morphology, immunohistochemical results and gene mutation. Besides, relevant literatures were also reviewed. Results The two patients with an average of 69 years were admitted to the hospital due to abnormal pain. The tumors were all located in the right hemicolon. Adenosquamous carcinoma contained both components that mixed haphazardly. Immunohistochemistry showed that both CK5/6 and P63 were positive in squamous cell carcinoma. KRAS exon 2 mutations and BRAF wide-type were found in adenosquamous carcinoma patient, while KRAS and BRAF wide-type were found in squamous cell carcinoma patient using ARMS-PCR method. Adenosquamous carcinoma patient abandoned treatment and died after one month and the other died of liver metastasis in five months after surgery. Conclusion Primary colon adenosquamous carcinoma and squamous cell carcinoma are very rare. They have the similar clinical symptoms, more invasive clinical processes and worse prognosis compared with adenocarcinoma, therefore should be valued in clinic.

目的 探讨p27^Kip1蛋白的表达与梅州地区客家人食管鳞癌的关系。方法 收集我院病理科2003年1月—2008年12月的61例经手术切除的中国梅州地区客家人食管鳞癌组织及32例食管良性肿瘤组织为研究对象并包埋成蜡块。采用免疫组织化学技术检测组织中p27^Kip1蛋白的表达,结合患者的临床病理资料和随访资料,进行回顾性分析,并作出评价。结果 P27^Kip1蛋白在食管鳞癌细胞核和/或细胞浆都有表达。胞核表达阳性率为27.87%,低于食管良性肿瘤组织胞核表达（50.0%）（P<0.05）;而胞浆表达阳性率为49.18%,高于食管良性肿瘤组织胞浆表达（12.5%）（P<0.05）。无淋巴结转移的食管鳞癌p27^Kip1蛋白胞核表达阳性率为42.41%,高于有淋巴结转移者的阳性率（10.7%）,差异有统计学意义（P<0.05）;而无淋巴结转移的食管鳞癌p27^Kip1蛋白胞浆表达阳性率为42.4%,比有淋巴结转移者（57.12%）的阳性率有降低的趋势（P>0.05）。Ⅱ期（ⅡA+ⅡB）和Ⅲ期p27Kip1蛋白胞核表达阳性率分别为42.41%和10.71%,差异有统计学意义（P<0.05）;p27^Kip1蛋白胞浆表达阳性率有随着TNM分期的增高而增高的趋势（P>0.05）。结论 P27^Kip1蛋白作为肿瘤抑制因子,其在食管鳞癌的胞核和胞浆表达阳性呈相反趋势,随食管鳞癌TNM分期越高,胞核阳性率越低,胞浆阳性率越高,其可作为食管肿瘤恶性程度及进展的预测指标。

目的 探索蟾毒灵对舌鳞状细胞癌Tca8113细胞增殖、凋亡的影响及可能作用机制。方法 以人舌鳞癌Tca8113细胞为研究对象,MTT法检测10、20、40、80、160 nmol/L浓度蟾毒灵体外抑制Tca8113细胞增殖的活性;检测蟾毒灵干预下肿瘤细胞Na⁺-K⁺-ATP酶活性的变化;Western blot发检测Bcl-2、Bax、caspase-3蛋白表达。结果 蟾毒灵有抑制Tca8113细胞的活性,且呈剂量-时间依赖性;在蟾毒灵干预下Tca8113细胞Na⁺-K⁺-ATP酶收到抑制;Western blot结果显示凋亡相关Bax、caspase-3蛋白表达上调,Bcl-2蛋白表达下调。结论 蟾毒灵通过抑制细胞膜Na⁺-K⁺-ATP酶活性,通过调节Bcl-2凋亡通路的相关蛋白,最终激活caspase-3,诱导人舌鳞癌Tca8113细胞凋亡。

Objective To explore the effects of bufalin on proliferation and apoptosis of tongue squamous cell carcinoma Tca8113 cells and its possible mechanism. Methods Tca8113 cells were treated with 10, 20, 40, 80 and 160 nmol/L Tca8113 cells in vitro. MTT assay was used to detect the inhibitory effect of bufalin on the proliferation of Tca8113 cells; And the activity of Na⁺-K⁺-ATPase in tumor cells was detected by the interference of bufalin; The expression of Bcl-2, Bax and caspase-3 protein was detected by Western blot. Results Bufalin inhibited the activity of Tca8113 cells in a dose-and time-dependent manner; Na⁺-K⁺-ATPase in Tca8113 cells was inhibited by bufalin; The results of Western blot showed that the expression of Bax and caspase-3 protein was up-regulated and the expression of Bcl-2 protein was down-regulated. Conclusion Bufalin induced the apoptosis of human tongue squamous cell carcinoma Tca8113 cells by inhibiting the activity of Na⁺-K⁺-ATPase and regulating the related proteins of Bcl-2 apoptosis pathway, finally activating caspase-3.

目的 研究鳞癌抗原(SCC-Ag)的表达对宫颈癌手术治疗后临床转归的预测价值。方法 选取我院2014年4月—2015年9月实施宫颈癌手术的患者52例,分别于手术前后分析所有患者的鳞癌抗原表达,对患者进行1年的随访,以发生癌细胞转移、复发或死亡为研究终点,比较预后良好的患者与预后差的患者鳞癌抗原的表达的不同。结果 Ia、Ib1、Ib2、IIa、IIb期宫颈癌患者术后SCC-Ag水平较手术前均显著降低(P＜0.05);纳入本次研究的患者宫颈癌术后复发或转移发生率为15.38%,转归良好的患者为84.62%,预后良好的患者术后SCC-Ag水平(0.91±0.27)ng/mL较发生复发或转移的患者(1.37±0.57)ng/ml显著较较低(P＜0.05)。结论 宫颈癌患者术后血清SCC-Ag水平与肿瘤的应答之间具有关联性,术后SCC-Ag水平高的患者复发与转移发生率显著高于SCC-Ag水平低的患者,鳞癌抗原的表达对宫颈癌手术后患者的转归情况具有预测价值,临床应予以重视。

目的 研究细胞周期调控因子E2F-1和p16蛋白与宫颈上皮内瘤变及宫颈鳞癌的表达及其临床意义。方法 通过免疫组化SP法检测宫颈上皮内瘤变Ⅰ-Ⅱ级(CINⅠ-Ⅱ级)、宫颈上皮内瘤变Ⅲ级(CINⅢ级)、宫颈鳞癌各40例中E2F-1和p16蛋白的表达情况,并用20例慢性宫颈炎组织作对照。结果 E2F-1蛋白在CINⅠ-Ⅱ级、CINⅢ级和宫颈鳞癌组中阳性率分别为17.5%、67.5%和80.0%, 3组间有差异(χ²=37.278,P<0.001)。p16蛋白表达阳性率分别为27.5%、70.0%和82.5%,3组间差异有统计学意义(χ²=27.708, P<0.001)。CINⅠ-Ⅱ级与CINⅢ级组及宫颈鳞癌组比较均有差异,但CINⅢ级与宫颈鳞癌组间无差异。p16蛋白的表达与E2F-1蛋白表达有正相关关系;在鳞癌组中E2F-1与p16的异常表达与组织学分级、临床分期有关(P<0.05)。结论 子宫颈鳞癌的形成与E2F-1 、p16蛋白过表达是呈正相关关系,E2F-1 、p16 蛋白可能作为子宫颈鳞癌及CIN的标志物,对子宫颈癌筛查和预防有重要意义。

Objective To explore the clinicopathologic significance of the protein expression of cell cycle regulators E2F-1 and P16 in cervical intraepithelial neoplasia(CIN) and cervical squamous cell carcinoma(SCC). Methods Immunohistochemical technique S-P was used to determinate the expression of E2F-1 and P16 protein in 40 cases with CINⅠ-Ⅱ, 40 cases with CINⅢ and 40 cases with cervical squamous cell carcinoma. Results The positive rate of E2F-1 protein expression in CINⅠ-Ⅱ, CINⅢ and cervical squamous cell carcinoma was 17.5%,67.5% and 80.0%, respectively. There were significant differences among the three groups(χ²=37.278,P<0.001). The positive rate of P16 protein expression in CINⅠ-Ⅱ, CINⅢ and cervical squamous cell carcinoma was 27.5%,70.0% and 82.5%, respectively. There were significant differences among the three groups (χ²=27.708, P<0.001). The group with CINⅢ and cervical squamous cell carcinom compared with the group withCINⅠ-Ⅱ did have differences. But there were no significant differences in the group with CINⅢ and the group with cervical squamous cell carcinoma. The relative expressions between P16 and E2F-1 showed positive correlation. In the cervical squamous cell carcinoma group, the abnormal expression of E2F-1 and p16 were correlated with the histological grade and clinical stage. Conclusion It showed positive correlation between very high expression of p16 protein and E2F-1 infection in CIN and SCC. p16 protein and E2F-1 can be an indicator in SCC and CIN,which has very significance in preventing and screening of cervical cancer.