肺癌患者血清bFGF和PIGF检测的临床意义

目的探讨胎盘生长因子（PIGF）和碱性成纤维细胞生长因子（bFGF）在肺癌患者血清中的表达及其与临床病理特征的关系。方法 通过酶联免疫吸附法（ELISA）分别检测136例肺癌患者和68例正常对照者血清中PIGF、bFGF的表达水平,分析两者表达的相关性及其与临床病理特征的关系。结果 肺癌组患者血清中PIGF和bFGF的表达水平分别为（528.26±27.54）pg／ml和（835.45±7.83）pg／ml,明显高于正常对照者的（482.45±13.23）pg/ml和（192.18±7.65）pg/ml（P＜0.05）。肺癌患者血清PIGF和bFGF的表达水平与年龄、性别、病理分型无明显的相关性（P＞0.05）,而与肿瘤的分化程度、TNM分期、远处转移均相关（P＜0.05）。经Pearson相关性检验,肺癌患者血清中bFGF和PIGF的表达水平呈正相关（r=0517,P＜005）。结论 PIGF和bFGF可能参与肺癌的发生、发展、侵袭和转移过程,能够反映疾病进展的情况。     

鼻咽癌患者血清VEGF、Endostatin和TSGF水平的相互关系

目的　探讨在鼻咽癌(NPC)患者血循环中血管内皮生长因子(VEGF)、内皮抑素(endostatin)和肿瘤相关物质群(TSGF)水平间的相互关系。方法　采用酶联免疫吸附试验(ELISA)检测14 0例NPC患者(治疗前组63例,完全缓解组41例,复发组3 6例)和40例健康人血清VEGF和Endostatin水平,采用光电比色法同步测定血清TSGF含量,并比较这些指标变化的相关性。结果　与健康对照组VEGF为(180 .9±14 7.7)ng/L ,Endostatin为(2 5 0 .9±2 5 4.4) μg/L ,TSGF为(5 3 .5±5 .2 )U /mL比较,NPC治疗前组、完全缓解组和复发组血清VEGF水平分别为[(2 96.5±183 .6)ng/L ,P <0 .0 1;(2 78.7±169.6)ng/L ,P <0 .0 5 ;(3 69.3±3 15 .6)ng/L ,P <0 .0 1] ;Endostatin水平分别为[(2 95 .6±5 0 .2 ) μg/L ,P <0 .0 1;(3 0 8.9±47.4) μg/L ,P <0 .0 1;(3 16.4±3 9.2 ) μg/L ,P <0 .0 1] ;TSGF水平分别为[(5 6.6±10 .3 )U /mL ,P >0 .0 5 ;(5 4.2±6.4)U /mL ,P >0 .0 5 ;(70 .6±15 .1)U /mL ,P <0 .0 1]。血清VEGF、Endostatin和TSGF水平均随着NPC临床病情进展而呈上升趋势,测定值间呈正相关关系(VEGF与Endostatin :γ=0 .0 5 4,P >0 .0 5 ;VEGF与TSGF :γ=0 .2 5 1,P <0 .0 1;Endostatin与TSGF :γ=0 .0 67,P >0 .0 5 )。结论NPC患     

非小细胞肺癌患者血清bFGF和MMP-9检测的临床意义

目的研究基质金属蛋白酶-9（MMP-9）和碱性成纤维细胞生长因子（bFGF）在非小细胞肺癌患者和健康者的血清样本中的含量及其与肿瘤分化程度、临床分期、远处转移等病理特征的相关性。方法通过酶联免疫吸附法（ELISA）分别检测非小细胞肺癌患者和正常对照者的血清样本中的MMP-9、bFGF的浓度,并进行统计学分析。结果MMP-9和bFGF在非小细胞肺癌患者血清中的含量明显高于健康人群（P<0.01）,并与肿瘤分期、肿瘤大小、远处转移呈正相关（P<0.05）,与分化程度呈负相关（P<0.05）;而与年龄、性别、肿瘤的病理类型无关（P>0.05）,经Pearson相关性检验发现两者之间显著相关（r=0.807,P<0.01）。结论MMP-9和bFGF共同参与非小细胞肺癌的发生发展、侵袭转移过程,联合检测可作为临床监测病情发展的指标。     

急性白血病患者血清肿瘤特异性生长因子水平测定的临床意义

目的:探讨肿瘤特异性生长因子(TSGF)在急性白血病中的表达和临床意义.方法:采用单克隆抗体透射比浊法测定62例急性白血病患者血清中TSGF水平.结果:急性白血病初诊患者血清TSGF水平明显低于正常对照组(P＜0.01),完全缓解期TSGF水平恢复正常,未缓解和复发患者TSGF水平与初诊患者无明显差异(P＞0.05).结论:检测TSGF水平变化有助于急性白血病病情判断,可作为疗效观察的辅助指标.     

急性白血病患者血清肿瘤特异性生长因子水平测定的临床意义

目的：探讨肿瘤特异性生长因子（TSGF）在急性白血病中的表达和临床意义。方法：采用单克隆抗体透射比浊法测定62例急性白血病患者血清中TSGF水平。结果：急性白血病初诊患者血清TSGF水平明显低于正常对照组（P〈0．01）,完全缓解期TSGF水平恢复正常,未缓解和复发患者TSGF水平与初诊患者无明显差异（P〉0.05）。结论：检测TSGF水平变化有助于急性白血病病情判断,可作为疗效观察的辅助指标。     

食管癌患者血清TGF-α水平检测的临床价值

目的探讨食管癌患者手术前后血清转化生长因子α(TGF-α)水平检测的临床意义。方法应用放射免疫分析法(RIA法)检测30例正常人,58例食管癌患者血清TGF-α水平,并比较40例食管癌患者手术前后血清TGF-α水平。结果血清TGF-α水平与临床分期、细胞分化程度有关;与食管癌患者性别、年龄无关。食管癌患者血清TGF-α水平(9.01ng/L±1.37ng/L)明显高于正常对照组(6.77ng/L±0.72ng/L)(P<0.01);Ⅳ期食管癌血清TGF-α(11.03ng/L±0.48ng/L)明显高于Ⅰ、Ⅱ、Ⅲ期(7.23ng/L±0.45ng/L、8.73ng/L±0.47ng/L、9.35ng/L±0.44ng/L)(P<0.01),Ⅲ期明显高于Ⅱ期(P<0.05),Ⅱ期明显高于Ⅰ期(P<0.01),低分化食管鳞癌患者血清TGF-α水平(9.96ng/L±1.19ng/L)显著高于中、高分化食管鳞癌患者(9.00ng/L±1.10ng/L、8.35ng/L±1.06ng/L)(P<0.05～0.01);食管癌患者术后血清TGF-α水平(7.45ng/L±0.90ng/L)明显低于术前(8.38ng/L±1.00ng/L)(P<0.01)。结论血清TGFα检测对食管癌疗效观察、病情监测及和和预后判断有重要的参考意义。     

沙利度胺对肺癌患者血清VEGF、bFGF和TNF-α水平的影响及临床意义

背景与目的:沙利度胺具有抗血管生成作用,本研究的目的在于评价沙利度胺联合化疗治疗晚期非小细胞肺癌的临床疗效并比较治疗前后血清VEGF、bFGF和TNF-α的变化.方法:66例晚期非小细胞肺癌随机分为2组各33例,联合组:NP 沙利度胺治疗.d 1,8静脉滴注长春瑞滨 25 mg/m2 ,d 1静脉滴注DDP 70～80 mg/m2 ;沙利度胺 200 mg/d, 口服,第1天起连续给药.化疗组:单化疗,用NP方案,剂量同上.采用酶联免疫法检测40例(两组各前20例)患者治疗前后血清VEGF、bFGF和TNF-α的含量.结果:联合组有效率(CR PR)为51.5%;化疗组有效率为36.4%.两组有效率无显著差异(P>0.05).联合组治疗有效的NSCLC患者血清VEGF水平显著下降(P<0.05).化疗组治疗有效的NSCLC患者治疗前后血清VEGF对比差异无显著性(P>0.05).两组化疗无效的患者治疗后血清VEGF、bFGF水平均比治疗前显著升高(P<0.05).联合组治疗后血清TNF-α水平显著低于治疗前水平(P<0.05).化疗组治疗前后血清TNF-α水平比较差异无显著性(P>0.05).结论:沙利度胺联合NP能改善晚期非小细胞肺癌患者的有效率;沙利度胺能够抑制肿瘤细胞VEGF和TNF-α的产生,从而降低血清VEGF和TNF-α的水平.     

血清肿瘤相关物质在卵巢上皮性癌诊断中的临床价值

目的：评价血清肿瘤相关物质（TSGF）在卵巢上皮性癌诊断中的临床价值。方法：以28例卵巢良性病变患者及61例正常女性血清TSGF的含量作对照，测定了69例不同分期，不同恶性程度的卵巢上皮性癌患者血清TSGF的含量，并测定了卵巢上皮性癌，卵巢良性病变患者血清中血管内皮生长因子（VEGF）和CA125的含量，比较三者的诊断价值。同时对TSGF和VEGF，CA125的相关关系作了分析。结果：卵巢上皮性癌患者血清TSGF的水平较卵巢良性病变患者及正常女性显著升高（P＜0．01），且其血清TSGF的含量与肿瘤的分期及恶性程度有关，Ⅲ期最,IV人之，I，Ⅱ期最低；分化好的卵巢上皮性癌患者TSGF水平较低，分化差的则较高，血清TSGF，VEGF和CA125对卵巢上皮性癌及卵巢良性病变的诊断价值无显著差异（P＞0．05），卵巢上皮性癌患者血清TSGF水平与VEGF，CA125均呈显著正相关（P＜0．01，P＜0．05），结论：TSGF与VEGF、CA125的诊断价值相近，对卵巢上皮性癌的诊断有一定的价值，是鉴别卵巢上皮性癌和卵巢良性病变的可靠指标。     

膀胱癌组织中bFGF蛋白的表达及其临床意义

目的 :探讨碱性成纤维细胞生长因子 (bFGF)与膀胱癌发生发展的关系。方法 :应用免疫组化方法检测了 4 8例膀胱癌存档标本和 4例正常膀胱组织中bFGF的蛋白表达。结果 :4 8例膀胱癌存档蜡块中有 2 3例阳性 ,浸润性癌显著高于浅表癌 (P <0 .0 1) ,除G1和G2 之间外各分级阳性率之间差异也有显著性。阳性着色定位于肿瘤细胞、血管内皮细胞、正常逼尿肌及肿瘤基质。结论 :bFGF可能通过自分泌和旁分泌机制诱导膀胱癌血管生成 ,或通过胞内分泌作用刺激某些酶的产生 ,从而促进肿瘤的浸润。bFGF高表达对预测膀胱癌患者的复发和预后有一定的指导意义。拮抗bFGF的作用可能是治疗和预防膀胱癌复发和转移的一条新途径。     

Basic Fibroblast Growth Factor as a Candidate Tumor Marker for Renal Cell Carcinoma

The present investigation was conducted to determine serum levels of basic fibroblast growth factor (FGF) by enzyme immunoassay in patients with various urogenital tumors. Renal cell carcinoma had a higher tendency (28 of 52, 53.8%) toward increased serum levels of basic FGF than any of the other urogenital tumors, and increased serum basic FGF was detected more frequently in patients with advanced renal cell carcinoma. Analysis of histological pattern indicated that renal cell carcinoma with a solid or tubular component is more likely to produce basic FGF. However, no significant difference was seen between the percentage of clear cell type tumor patients with increased serum basic FGF (50.0%) and the percentage of granular cell type tumor patients with increased serum basic FGF (66.7%). Five of 8 patients with renal cell carcinoma who underwent selective renal venous sampling before nephrectomy showed increased serum basic FGF in the renal vein from the affected kidney. After resection of the affected kidney to remove the cancer, serum basic FGF disappeared within 2 weeks. However, residual huge tumor or postoperative disease prolonged the increased levels of basic FGF in 2 patients, indicating that basic FGF is produced from and secreted by tumor tissue itself. These findings suggest that serum basic FGF can be useful in the diagnosis, and in evaluating the prognosis, of patients with renal cell carcinoma.     

肿瘤相关物质联合检测试验对肿瘤的筛查及监控意义

目的　探讨肿瘤相关物质 (TumorSuppliedGroupofFactors ;TSGF)检测在肿瘤诊断及疗效观察中的意义。方法　用化学法测定163例恶性肿瘤患者 (A组 ) ,12 0例健康体检者 (B组 )及 2 2例良性肿瘤患者 (C组 )血清中的TSGF含量 ,并分析各观察组中TSGF的关系。结果　血清TSGF含量A组为 ( 67 4± 18 6)U/mL ;B组为 ( 5 1 7± 6 3 )U/mL ;C组为 ( 5 4 6± 7 5 )U/mL ,A组TSGF含量明显高于B组及C组 (P <0 0 1)。TSGF肿瘤诊断的总阳性率为 84 7% ,特异性为 96 3 % ;其中肺癌和大肠癌的阳性率分别为 90 7%、89 6% ;手术和化疗后随访的 2 3例大肠癌患者中 ,一年后有 1例TSGF持续阳性 ,后经确诊其为复发患者。结论　TSGF是一种广谱、灵敏 ,简便的肿瘤筛查指标 ,对肿瘤诊断、疗效评估、肿瘤复发判断等有重要的临床意义。     

血管内皮生长因子、碱性成纤维细胞生长因子在非小细胞肺癌中的表达及临床意义

目的：探讨血管内皮生长因子（VEGF）、碱性成纤维细胞生长因子（bFGF)在非小细胞肺癌（Non-small cell lung cancer,NSCLC)中的表达及临床意义。方法：应用免疫组织化学方法检测96例NSCLC组织中VEGF、bFGF蛋白水平的表达，其中36例应用RT－PCR技术检测上述基因mRNA表达。结果：NSCLC中VEGF mRNA主要表达分泌性VEGF121和VEGF165，阳性率分别为69．5％（25／36）和41．7％（15／36），bFGF mRNA阳性率为52．8％（19／36）；免疫组化显示VEGF、bFGF阳性表达率分别为55．6％（20／36）和58．3％（21／36），二者之间呈正相关（P＝0．002）；VEGF、bFGF表达与患者年龄、性别、病理类型、分化程度、TNM分期、肿瘤转移、生存期等临床资料之间无统计学意义。结论：VEGF、bFGF在NSCLC血管形成中起重要作用，且二者具有协同作用。     

Production of Basic Fibroblast Growth Factor-like Factor by Cultured Human Cholangiocellular Carcinoma Cells

An extract of cultured human cholangiocellular carcinoma cells (HuCC-T1) was found to contain high mitogenic activity for BALB/c3T3 cells. The growth factor eliciting most of the mitogenic activity was purified and concluded to be identical with basic fibroblast growth factor (bFGF)-like factor on the basis of its molecular weight and heparin-Sepharose elution profile, and the results of immunoblotting and radioimmunoassay. HuCC-T1 cells also secreted bFGF-like factor into serum-free medium. A combination of insulin and transferrin or bovine serum albumin stimulated the growth of HuCC-T1 cells in serum-free medium. However, bFGF did not stimulate their growth in the presence and absence of these supplements. Neutralizing monoclonal antibody against bFGF did not inhibit growth. These results indicate that bFGF-like factor is not a growth factor for this cell line.     

血管内皮生长因子在急性白血病中的表达水平及其意义

目的 探讨急性白血病（AL）血清和骨髓单个核细胞培养上清液（CSBMMNC）中血管内皮生长因子（VEGF）表达水平及其临床意义。方法 采用酶联免疫吸附法定量检测71例急性白血病和20例正常对照血清及CSBMMNC中VEGF表达水平。对其中33例初发AL患者采用2个疗程化疗。分析比较VEGF表达水平的变化与疗效的关系。结果ANLL组与ALL组初发患者血清与CSBMMNC中VEGF水平相比，差异无显著性（P〉0．05）。AL初发组、复发难治组分别与完全缓解（CR）组、正常对照组血清及CSBMMNC中VEGF表达水平相比有非常显著性差异（P均〈0．01）。但复发难治组与初发组相比差异无显著性（P均〉0．05）。初发AL血清与CSBMMNC中VEGF水平与骨髓原始细胞数呈显著正相关（r值分别为0．521和0．849，P均〈0．01）。33例初发AL患者采用2个疗程化疗，血清及CSBMMNC中高表达组CR率（36．36％）较低表达组CR率（90．90％）低，有非常显著性差异（P均〈0．01）。结论 动态检测血清及CSBMMNC中VEGF水平可在一定程度上了解AL的状态和体内白血病细胞的总负荷量，对AL的疗效及预后判断有一定的指导意义。     

Significance of Basic Fibroblast Growth Factor and Fibroblast Growth Factor Receptor Protein Expression in the Formation of Fibrotic Focus in Invasive Ductal Carcinoma of the Breast

A fibrotic focus (FF) is a scar-like area within invasive dnctal carcinoma (IDC) of the breast, and has been shown to be a marker of high aggressiveness of IDC. In order to investigate the mechanism of FF formation in IDC, expression of basic fibroblast growth factor (bFGF) and flbroblast growth factor receptor (FGFR) was studied. One hundred and forty-nine IDCs were divided into solid tumors and scirrhous tumors. Immunohistochemistry was used to determine the expression of bFGF and FGFR proteins in both tumor cells and fibroblasts forming FF. Scirrhous tumors with FF showed a significantly higher frequency of bFGF protein expression than those without ( P =0.017), whereas, in solid tumors, the presence of FF was not significantly associated with the frequency of bFGF protein expression ( P =0.143). In addition, scirrhous tumors showed a significantly higher frequency of FGFR protein expression than solid tumors ( P =0.001). Among IDCs having FF and expressing bFGF protein, a significantly larger number of fibroblasts expressing FGFR protein within FF was observed in scirrhous tumors than in solid tumors ( P =0.016). The results of this study suggest that in scirrhous tumors the interaction between tumor cells and stromal fibroblasts plays an important role in the formation of FF, and that there is a paracrine mechanism between bFGF protein from tumor cells and FGFR protein in fibroblasts.