MicroRNAs refer to a class of endogenous,short non-coding RNAs that mediate numerous biological functions.MicroRNAs regulate various physiological and pathological activities of peripheral nerves,including peripheral ...MicroRNAs refer to a class of endogenous,short non-coding RNAs that mediate numerous biological functions.MicroRNAs regulate various physiological and pathological activities of peripheral nerves,including peripheral nerve repair and regeneration.Previously,using a rat sciatic nerve injury model,we identified many functionally annotated novel microRNAs,including miR-sc14.Here,we used real-time reverse transcription-polymerase chain reaction to examine miR-sc14 expression in rat sciatic nerve stumps.Our results show that miRsc14 is noticeably altered following sciatic nerve injury,being up-regulated at 1 day and diminished at 7 days.EdU and transwell chamber assay results showed that miR-sc14 mimic promoted proliferation and migration of Schwann cells,while miR-sc14 inhiThe study was approved by the Jiangsu Provincial Laboratory Animal Management Committee,China on March 4,2015(approval No.20150304-004).bitor suppressed their proliferation and migration.Additionally,bioinformatic analysis examined potential target genes of miR-sc14,and found that fibroblast growth factor receptor 2 might be a potential target gene.Specifically,our results show changes of miR-sc14 expression in the sciatic nerve of rats at different time points after nerve injury.Appropriately,up-regulation of miR-sc14 promoted proliferation and migration of Schwann cells.Consequently,miR-sc14 may be an intervention target to promote repair of peripheral nerve injury.The study was approved by the Jiangsu Provincial Laboratory Animal Management Committee,China on March 4,2015(approval No.20150304-004).展开更多
目的探讨接受根治性肝切除术治疗的肝内胆管细胞癌(ICC)患者肿瘤组织成纤维细胞生长因子受体2表达及其与预后的关系。方法2017年3月~2022年4月我院诊治的ICC患者56例,均接受肝叶切除术治疗,随访1年。采用免疫组化法检测肿瘤组织FGFR2表...目的探讨接受根治性肝切除术治疗的肝内胆管细胞癌(ICC)患者肿瘤组织成纤维细胞生长因子受体2表达及其与预后的关系。方法2017年3月~2022年4月我院诊治的ICC患者56例,均接受肝叶切除术治疗,随访1年。采用免疫组化法检测肿瘤组织FGFR2表达。采用单因素和多因素Logistic回归分析影响无病生存期(DFS)的因素。结果本组肿瘤组织FGFR2阳性15例(26.8%),阴性41例(73.2%);FGFR2阳性组发生微血管侵袭比例为66.7%,显著高于FGFR2阴性组的29.3%(P<0.05);FGFR2阳性组血清CEA水平为5.9(1.3,55.2)ng/mL,显著高于FGFR2阴性组【2.2(0.5,26.4)ng/mL,P<0.05】;术后随访1年,FGFR2阳性组1 a DFS为33.3%,显著低于FGFR2阴性组的58.5%(P<0.05);多因素分析发现,最大肿瘤直径、肿瘤部位和FGFR2阳性表达是影响患者预后的独立危险因素(P<0.05)。结论FGFR2高表达可能是ICC患者术后肿瘤复发的危险因素,针对这类患者有必要采取更加科学的随访计划和管理措施。展开更多
目的:探讨纤维细胞生长因子受体2(FGFR2)基因rs2981582位点单链核苷酸多态性与中国女性乳腺癌易感性之间的关系。方法:利用Tm-shifting实时荧光定量PCR检测FGFR2基因rs2981582位点SNP(C/T),用荧光染料SYBR Green Ⅰ标记样本DNA,通过在...目的:探讨纤维细胞生长因子受体2(FGFR2)基因rs2981582位点单链核苷酸多态性与中国女性乳腺癌易感性之间的关系。方法:利用Tm-shifting实时荧光定量PCR检测FGFR2基因rs2981582位点SNP(C/T),用荧光染料SYBR Green Ⅰ标记样本DNA,通过在特异引物5′端加上不同长度的尾,使不同基因型溶解曲线的峰值出现差异。确定判断标准:Tm≤84.6℃的是纯合子CC,≥87.5℃的是纯合子TT,处于中间的是杂合子TC。利用此方法对956例乳腺癌患者和471例良性乳腺疾病患者进行病例对照研究,分析FGFR2基因rs2981582位点SNP与乳腺癌发生之间的关系。结果:对照组CC、CT、TF各基因型表达的例数及基因频率分别为234例(49.68%)、181例(38.43%)、56例(11.89%)。乳腺癌组总体各基因型例数及基因频率分别为426例(44.56%)、400例(41.84%)、130例(13.60%),与对照组比较无统计学意义(P=0.183)。进一步分层分析发现,ER(+)组各基因型例数及基因频率分别为189例(41.27%)、202例(46.12%)、67例(14.63%),与对照组比较有统计学意义(P=0.035);而ER(-)组各基因型及基因频率分别为237例(47.59%)、198例(39.75%)、63例(12.65%),与对照组比较无统计学意义(P=0.802)。结论:FGFR2基因第二内含子SNP rs2981582与ER阳性乳腺癌的发生有显著关系,同时验证了用本方法检测大批量人群标本的SNP操作简便,检测耗时短,结果特异且费用较为低廉,适合于进行大规模样品的SNP快速测定。展开更多
基金supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions of China
文摘MicroRNAs refer to a class of endogenous,short non-coding RNAs that mediate numerous biological functions.MicroRNAs regulate various physiological and pathological activities of peripheral nerves,including peripheral nerve repair and regeneration.Previously,using a rat sciatic nerve injury model,we identified many functionally annotated novel microRNAs,including miR-sc14.Here,we used real-time reverse transcription-polymerase chain reaction to examine miR-sc14 expression in rat sciatic nerve stumps.Our results show that miRsc14 is noticeably altered following sciatic nerve injury,being up-regulated at 1 day and diminished at 7 days.EdU and transwell chamber assay results showed that miR-sc14 mimic promoted proliferation and migration of Schwann cells,while miR-sc14 inhiThe study was approved by the Jiangsu Provincial Laboratory Animal Management Committee,China on March 4,2015(approval No.20150304-004).bitor suppressed their proliferation and migration.Additionally,bioinformatic analysis examined potential target genes of miR-sc14,and found that fibroblast growth factor receptor 2 might be a potential target gene.Specifically,our results show changes of miR-sc14 expression in the sciatic nerve of rats at different time points after nerve injury.Appropriately,up-regulation of miR-sc14 promoted proliferation and migration of Schwann cells.Consequently,miR-sc14 may be an intervention target to promote repair of peripheral nerve injury.The study was approved by the Jiangsu Provincial Laboratory Animal Management Committee,China on March 4,2015(approval No.20150304-004).
文摘目的探讨接受根治性肝切除术治疗的肝内胆管细胞癌(ICC)患者肿瘤组织成纤维细胞生长因子受体2表达及其与预后的关系。方法2017年3月~2022年4月我院诊治的ICC患者56例,均接受肝叶切除术治疗,随访1年。采用免疫组化法检测肿瘤组织FGFR2表达。采用单因素和多因素Logistic回归分析影响无病生存期(DFS)的因素。结果本组肿瘤组织FGFR2阳性15例(26.8%),阴性41例(73.2%);FGFR2阳性组发生微血管侵袭比例为66.7%,显著高于FGFR2阴性组的29.3%(P<0.05);FGFR2阳性组血清CEA水平为5.9(1.3,55.2)ng/mL,显著高于FGFR2阴性组【2.2(0.5,26.4)ng/mL,P<0.05】;术后随访1年,FGFR2阳性组1 a DFS为33.3%,显著低于FGFR2阴性组的58.5%(P<0.05);多因素分析发现,最大肿瘤直径、肿瘤部位和FGFR2阳性表达是影响患者预后的独立危险因素(P<0.05)。结论FGFR2高表达可能是ICC患者术后肿瘤复发的危险因素,针对这类患者有必要采取更加科学的随访计划和管理措施。
文摘目的:探讨纤维细胞生长因子受体2(FGFR2)基因rs2981582位点单链核苷酸多态性与中国女性乳腺癌易感性之间的关系。方法:利用Tm-shifting实时荧光定量PCR检测FGFR2基因rs2981582位点SNP(C/T),用荧光染料SYBR Green Ⅰ标记样本DNA,通过在特异引物5′端加上不同长度的尾,使不同基因型溶解曲线的峰值出现差异。确定判断标准:Tm≤84.6℃的是纯合子CC,≥87.5℃的是纯合子TT,处于中间的是杂合子TC。利用此方法对956例乳腺癌患者和471例良性乳腺疾病患者进行病例对照研究,分析FGFR2基因rs2981582位点SNP与乳腺癌发生之间的关系。结果:对照组CC、CT、TF各基因型表达的例数及基因频率分别为234例(49.68%)、181例(38.43%)、56例(11.89%)。乳腺癌组总体各基因型例数及基因频率分别为426例(44.56%)、400例(41.84%)、130例(13.60%),与对照组比较无统计学意义(P=0.183)。进一步分层分析发现,ER(+)组各基因型例数及基因频率分别为189例(41.27%)、202例(46.12%)、67例(14.63%),与对照组比较有统计学意义(P=0.035);而ER(-)组各基因型及基因频率分别为237例(47.59%)、198例(39.75%)、63例(12.65%),与对照组比较无统计学意义(P=0.802)。结论:FGFR2基因第二内含子SNP rs2981582与ER阳性乳腺癌的发生有显著关系,同时验证了用本方法检测大批量人群标本的SNP操作简便,检测耗时短,结果特异且费用较为低廉,适合于进行大规模样品的SNP快速测定。
