Diagnostic value evaluation of trefoil factors family 3 for the early detection of colorectal cancer

AIM The purpose of this study was to evaluate the diagnostic value of trefoil factor family 3(TFF3) for the early detection of colorectal cancer(CC). METHODS Serum TFF3 and carcino-embryonic antigen(CEA) were detected in 527 individuals, including 115 healthy control(HC), 198 colorectal adenoma(CA), and 214 CC individuals in the training group. RESULTS Serum TFF3 showed no significant correlation with age, gender, or tumor location but showed significant correlation with the tumor stage. Serum TFF3 in the CC group was significantly higher than in the HC or CA group. The AUC values of TFF3 for discriminating between HC and CC and between CA and CC were 0.930(0.903, 0.958) and 0.834(0.796, 0.873). A multivariate model combining TFF3 and CEA was built. Compared to TFF3 or CEA alone, the multivariate model showed significant improvement(P < 0.001). For discriminating between HC and CC, HC and early stage CC, HC and advanced stage CC, CA and CC, CA and early stage CC, and CA and advanced stage CC in the training group, the sensitivities were 92.99%, 91.46%, 93.18%, 73.83%, 76.83%, and 81.82%, and the specificities were 91.30%, 91.30%, 93.91%, 88.38%, 77.27%, and 88.38%, respectively. After validation, the sensitivities were 89.39%, 85.71%, 90.79%, 72.73%, 71.43%, and 78.95%, and the specificities were 87.85%, 87.85%, 2.52%, 87.85%, 80.77%, and 87.50%, respectively. CONCLUSION The multivariate diagnostic model that included TFF3 and CEA showed significant improvement over the conventional biomarker CEA and might provide a potential method for the early detection of CC.

Effects of Intestinal Trefoil Factor on Colonic Mucosa in Experimental Colitis of Rats

In order to investigate the protective effects of intestinal trefoil factor (ITF) on colonic mucosa in experimental colitis of rats, ITF was detected by RT-PCR and immunohistochemistry at different time points. Three days after colitis induction, rats were treated with either 0.9 % saline solution or rhITF. Pathological changes and the expression of iNOS mRNA, NO, MDA and SOD were measured respectively. It was found that ITF was mainly located in goblet cells, significantly higher in model group than in normal group (P<0.05). rhITF could increase the iNOS mRNA expression and NO contents, and there was statistically significant difference between rhITF group and model group (P<0.05). rhITF also caused an increase of MDA and a decrease of SOD, but there was no significant difference between two groups. These results indicated that ITF has apparent therapeutic effects in ulcerative colitis, which may be associated with iNOS and NO.

Pretreatment with intestinal trefoil factor alleviates stress-induced gastric mucosal damage via Akt signaling

BACKGROUND Stress-related gastric mucosal damage or ulcer remains an unsolved issue for critically ill patients.Stress ulcer prophylaxis has been part of routine intensive care,but uncertainty and controversy still exist.Co-secreted with mucins,intestinal trefoil factor(ITF)is reported to promote restitution and regeneration of intestinal mucosal epithelium,although the mechanism remains unknown.AIM To elucidate the protective effects of ITF on gastric mucosa and explore the possible mechanisms.METHODS We used a rat model of gastric mucosal damage induced by water immersion restraint stress and lipopolysaccharide-treated human gastric epithelial cell line to investigate the potential effects of ITF on damaged gastric mucosa both in vivo and in vitro.RESULTS ITF promoted the proliferation and migration and inhibited necrosis of gastric mucosal epithelia in vitro.It also preserved the integrity of gastric mucosa by upregulating expressions of occludin and zonula occludens-1.In the rat model,pretreatment with ITF ameliorated the gastric mucosal epithelial damage and facilitated mucosal repair.The protective effects of ITF were confirmed to be exerted via activation of Akt signaling,and the specific inhibitor of Akt signaling LY249002 reversed the protective effects.CONCLUSION ITF might be a promising candidate for prevention and treatment of stressinduced gastric mucosal damage,and further studies should be undertaken to verify its clinical feasibility.

Expression of trefoil factors 1 and 2 in precancerous condition and gastric cancer

瞄准：处于癌症前期的状况和胃的癌症学习翘摇因素 1 的表示(TFF1 ) 和 TFF2 并且探索在 TFF 和肿瘤发生之间的关系，癌症前期的状况和胃的癌症。方法：TFF1 和 TFF2 的表示是组织化学地包括 35 从 140 个病人在嵌入石蜡的样品分析的免疫长期的表面的胃炎(CSG ) 的盒子，胃溃疡(GU ) 的 35 个盒子，长期的萎缩性胃炎(CAG ) 的 35 个盒子和胃的癌症(GC ) 的 35 个盒子。结果：TFF1 和 TFF2 位于胃的粘液细胞的细胞质。在 CSG， GU， CAG 和 GC， TFF1 表示的水平有一个减少的趋势(P 【 0.05 ) 。TFF2 的表示比在 CSG 在 GU 是更高的，但是差别不是重要的。TFF2 的表示也在 GU， CAG，和 GC 有一个减少的趋势(P 【 0.05 ) 。结论：处于癌症前期的条件和胃的癌症的 TFF1 和 TFF2 的减少的表示可以与增长和胃粘膜的恶意的转变被联系。更多的调查被需要探索在 TFF 和胃的癌症之间的 TFF 和关系的机制。

Trefoil factors:Tumor progression markers and mitogens via EGFR/MAPK activation in cholangiocarcinoma

AIM:To investigate trefoil factor(TFF) gene copy number,mRNA and protein expression as potential biomarkers in cholangiocarcinoma(CCA).METHODS:TFF mRNA levels,gene copy number and protein expression were determined respectively by quantitative reverse transcription polymerase chain reaction(PCR),quantitative PCR and immunohistochemistry in bile duct epithelium biopsies collected from individuals with CCA,precancerous bile duct dysplasia and from disease-free controls.The functional impact of recombinant human(rh) TFF2 peptide treatment on proliferation and epidermal growth factor receptor(EGFR) /mitogenactivated protein kinase(MAPK) signaling was assessed in the CCA cell line,KMBC,by viable cell counting and immunoblotting,respectively.RESULTS:TFF1,TFF2 and TFF3 mRNA expression was significantly increased in CCA tissue compared to disease-free controls,and was unrelated to gene copy number.TFF1 immunoreactivity was strongly increased in both dysplasia and CCA,whereas TFF2 immunoreactivity was increased only in CCA compared to diseasefree controls.By contrast,TFF3 immunoreactivity was moderately decreased in dysplasia and further decreased in CCA.Kaplan-Meier analysis found no association of TFF mRNA,protein and copy number with age,gender,histological subtype,and patient survival time.Treatment of KMBC cells with rhTFF2 stimulated proliferation,triggered phosphorylation of EGFR and downstream extracellular signal related kinase(ERK),whereas co-incubation with the EGFR tyrosine kinase inhibitor,PD153035,blocked rhTFF2-dependent proliferation and EGFR/ERK responses.CONCLUSION:TFF mRNA/protein expression is indicative of CCA tumor progression,but not predictive for histological sub-type or survival time.TFF2 is mitogenic in CCA via EGFR/MAPK activation.

Expression of trefoil factors and TWIST1 in colorectal cancer and their correlation with metastatic potential and prognosis

AIM To detect the expression of trefoil factors(TFFs)and TWIST1 in colorectal cancer(CRC)and analyze their correlation with metastasis and survival.METHODS This study examined the expression of TFF1,TFF3 and TWIST1 in a total of 75 tumor samples,47 matched normal samples(15 cm from the lesion margin),30metastatic lymph nodes,and 10 liver metastatic cancer samples from patients with CRC.The relationship was then analyzed between the protein expression and different clinical records.TFF1,TFF3,TWIST1,E-cadherin,vimentin andβ-catenin m RNA and protein expression levels were measured in colon cancer cell lines with different metastatic potentials(HIEC,HT29,SW620,and Lo Vo cells),and the correlation of the expression levels with epithelial-mesenchymal transition(EMT)was discussed.RESULTS It was found that 66.7%(50/75),78.7%(59/75)and54.7%(41/75)of tumor tissue samples exhibited positive staining for TFF1,TFF3 and TWIST1 and so did 27.3%(13/47),100%(47/47)and 17%(8/47)of adjacent normal colorectal tissues.Compared with adjacent normal tissues,significant differences were found in the expression of all three proteins in different cancerous tissues(P<0.05).Higher expression of TFF3 and TWIST1 was significantly correlated with lymph node metastasis(P=0.034,P=0.000),advanced stage(P=0.031,P=0.003),and poorer survival(P=0.042 for the TFF3 group,P=0.003for the TWIST1 group).The expression of TFF3 and TWIST1 in cancer cell lines was higher than that in HIEC(a normal human intestinal epithelial cell line)(P<0.05),and the expression intensity demonstrated a tendency to rise with increased metastatic potential both at the protein and m RNA levels.However,TFF1expression demonstrated the opposite tendency.It was also observed that the expression of E-cadherin andβ-catenin tended to decrease while that of vimentin,TWIST1 and Snail tended to rise with the increase in metastatic potential.CONCLUSION The expression of TFF3 and TWIST1 might be associated with the survival of patients with CRC after curative resection and might be pivotal predictors of disease progression.TFF3 may be correlated to the invasiveness of CRC.

Molecular forms of trefoil factor 1 in normal gastric mucosa and its expression in normal and abnormal gastric tissues

AIM: To study the molecular forms of trefoil factor 1 (TFF1) in normal gastric mucosa and its expression in normal and abnormal gastric tissues (gastric carcinoma, atypical hyperplasia and intestinalized gastric mucosa) and the role of TFF1 in the carcinogenesis and progression of gastric carcinoma and its molecular biological mechanism underlying gastric mucosa protection. METHODS: The molecular forms of TFF1 in normal gastric mucosa were observed by Western blot. The expression of TFF1 in normal and abnormal gastric tissues (gastric carcinoma, atypical hyperplasia and intestinalized gastric mucosa) was also assayed by immunohistochemical method. The average positive AO was estimated by Motic Images Advanced 3.0 software. RESULTS: Three patterns of TFF1 were found in normal gastric mucosa: monomer, dimmer, and TFF1 compound whose molecular weight is about 21 kDa. The concentration of TFF1 compound was the highest among these three patterns. TFF1 was expressed mainly in epithelial cytoplasm of the mucosa in gastric body and antrum, especially around the nuclei. The closer the TFF1 to the lumen, the higher the expression of TFF1. The expression of TFF1 in peripheral tissue of gastric carcinoma (0.51 ± 0.07) was higher than that in normal gastric mucosa (0.44 ± 0.06, P < 0.001). The expression of TFF1 in gastric adenocarcinoma was positively related to the differentiation of adenocarcinoma. The lower the differentiation of adenocarcinoma was, the weaker the expression of TFF1. No TFF1 was expressed in poorly- differentiated adenocarcinoma. The expression of TFF1 in moderately-well differentiated adenocarcinoma (0.45 ± 0.07) was a little lower than that in normal mucosa (P > 0.05). The expression of TFF1 in gastric mucosa with atypical hyperplasia (0.57 ± 0.03) was significantlyhigher than that in normal gastric mucosa (P < 0.001). No TFF1 was expressed in intestinalized gastric mucosa. There was no statistically significant difference between the expressions of TFF1 in gastric mucosa around the intestinalized tissue (0.45 ± 0.07) and normal gastric mucosa (P > 0.05). CONCLUSION: TFF1 is expressed mainly in epithelial cytoplasm of the mucosa in gastric body and antrum. Its main pattern is TFF1 compound, which may have a greater biological activity than monomer and dimer. The expression of TFF1 in peripheral mucosa of gastric ulcer is higher than that in mucosa 5 cm beyond the ulcer, indicating that TFF1 plays an important part in protection and restitution of gastric mucosa. The expression of TFF1 is increased in peripheral tissues of gastric carcinoma and gastric mucosa with atypical hyperplasia, but is decreased in cancer tissues, implying that TFF1 may be related to suppression and differentiation of carcinoma. The weaker expression of TFF1 in poorly-differentiated carcinoma may be related to the destruction of glands and cells in cancer tissues and the decrease in secretion of TFF1.

Relationship between trefoil factor 1 expression and gastric mucosa injuries and gastric cancer

AIM: To determine whether trefoil factor 1 (TFF1) is associated with mucosa healing and carcinoma suppression,we assess the expression of trefoil factor 1 in normal and pathologic gastric mucosa.METHODS: TFFI in normal and pathologic gastric mucosa was assessed by immunohistochemical method, and the average positive A was estimated by Motic Images Advanced 3.0 software.RESULTS: Increased TFF1 was detected in gastritis,gastric ulcer and duodenal ulcer compared with normal mucosa. The same result could be seen in multiple and compound ulcer compared with simple ulcer. There was no significant difference between gastric ulcer and duodenal ulcer, gastritis and simple ulcer respectively.Increased TFF1 was detected in the peripheral mucosa of the gastric adenocarcinoma compared with normal mucosa. The expression of TFF1 in gastric adenocarcinoma was related to the differentiation of adenocarcinoma. The lower the differentiation of adenocarcinoma, the weaker the expression of TFF1. There was no TFF1 expressed in low-differentiated adenocarcinoma. The expression of TFF1 in middle and highly differentiated adenocarcinoma was a little lower than that in normal mucosa. But there was no significant difference. No TFF1 was assessed in esophageal squamous carcinoma and peripheral tissue. There was no significant difference between male and female.CONCLUSION: The expression of TFF1 was higher in gastritis and peptic ulcer than that in normal mucosa,and was also higher in multiple and compound ulcer than in simple ulcer. It seems that TFF1 plays a role in gastric mucosa protection and epithelial restitution. Increased expression of TFF1 in peripheral tissue suggests that TFF1 is associated with mechanism of carcinoma suppression and differentiation. Decreased expression of TFFI in carcinoma and its relativity to the differentiation suggests that TFF1 is related to gland and cell destruction of carcinoma.

Trefoil factors in inflammatory bowel disease

Inflammatory bowel disease(IBD),which comprises ulcerative colitis and Crohn’s disease,is characterized by inflammation of the gastrointestinal tract.The trefoil factors 1,2,and 3(TFF1-3)are a family of peptides that play important roles in the protection and repair of epithelial surfaces,including the gastrointestinal tract.TFFs may be involved in IBD pathogenesis and are a potential treatment option.In the present review,we describe the TFF family and their potential role in IBD by summarizing the current knowledge of their expression,possible function and pharmacological role in IBD.

Effect of electroacupunture on gastric mucosal intestinal trefoil factor gene expression of stress-induced gastric mucosal injury in rats

瞄准：在 Foot-Yangming ( SMFY )的胃顶点的 acupoints 调查电镀物品针灸( EA )，胃的粘膜的肠的翘摇上的 Foot-Yangming ( SMFY )的胆囊顶点在有胃的粘膜的导致压力的老鼠的因素( ITF )基因表示察觉损害，并且探索EA相关的胃的粘膜的规章的机制和意义保护的效果。方法：四十只老鼠随机被划分成 4 个组：空白的组，为组建模，在 SMFY 组(“ SMFY 组”) 的 acupoints 为 group+EA 建模，并且为在 GMFY 组(GMFY 组) 的 acupoints 的 group+EA 建模。所有老鼠(除了空白的组) 走水路被成为模型沉浸和抑制应力(WRS ) 。然后，在每只老鼠的胃粘膜织物在对胃的粘膜损害索引(图形用户界面) 的评价以后被脱掉，并且纸巾的 ITF mRNA 的表示被反向的抄写聚合酶检测链反应(RT-PCR ) 方法。结果：与模型组相比(54.3+/- 1.34 )，在 SMFY 的图形用户界面价值组织(31+/- 2.21 )显著地减少了( P【 0.01 )，那么做了在 GMFY 组织(39.8+/- 1.62 ， P【 0.05 )，同时，在 SMFY 的图形用户界面价值组织比在 GMFY 组( P【 0.01 )显著地低。与模型组相比(0.65+/- 0.01 ) ， EA 有一个趋势改进胃的粘膜 ITFmRNA 的表示基因：如此的趋势在 GMFY 组存在(0.66+/- 0.01 ) 但是没有有效差量(P】0.05 ) ，在 SMFY 组(0.76+/- 0.01 ) 与极其明显的差别(P【 0.01 ) ，而且，在 SMFY 的表示组织比在 GMFY 组(P【 0.01 ) 显著地高。结论：由在 SMFY 和 GMFY 的 acupoints 的 EA 的胃的粘膜 protective 效果与 ITF 的表示变化有关，显示某些顶点特性存在。它能是为 TCM 理论的一个证明“在 SMFY 和胃之间的相对个性”。

Trefoil factor-3 is not a useful marker of mucosal healing in Crohn's disease treated with anti-TNF-α antibodies

AIM To evaluate whether repeated serum measurements of trefoil factor-3(TFF-3)can reliably reflect mucosal healing(MH)in Crohn’s disease(CD)patients treated with anti-tumor necrosis factor-α(anti-TNF-α)antibodies.METHODS Serum TFF-3 was measured before and after antiTNF-αinduction therapy in 30 CD patients.The results were related to clinical,biochemical and endoscopic parameters.MH was defined as a≥50%decrease in Simple Endoscopic Score for Crohn’s disease(SES-CD).RESULTS SES-CD correlated significantly with CD clinical activity and several standard biochemical parameters(albumin,leukocyte and platelet counts,C-reactive protein,erythrocyte sedimentation rate,fibrinogen).In contrast,SES-CD did not correlate with TFF-3(P=0.54).Moreover,TFF-3 levels did not change significantly after therapy irrespectively of whether the patients achieved MH or not.Likewise,TFF-3 did not correlate with changes in fecal calprotectin,which has been proposed as another biochemical marker of mucosal damage in CD.CONCLUSION Serum TFF-3 is not a convenient and reliable surrogate marker of MH during therapy with TNF-αantagonists in CD.

Amplification of chromosome 21q22.3 harboring trefoil factor family genes in liver fluke related cholangiocarcinoma is associated with poor prognosis

瞄准：在 cholangiocarcinoma (CCA ) 包括翘摇因素家庭基因(TFF ) 在染色体区域 21q22-qter 上决定突变而产生之遗传的不平衡病人和分析在突变而产生之遗传的不平衡和 clinicopathological 参数之间的关联。方法：量的 PCR 扩大用一条标准曲线和格林·西布尔在四个微卫星标记和翘摇因素家庭基因(TFF1， TFF2，和 TFF3 ) 上被执行我染料方法。相对拷贝数字被测试地点的 DNA 拷贝数字决定引用地点。当由有正常参考的比较的删除或扩大变化，相对拷贝数字被解释。在突变而产生之遗传的不平衡和 CCA 病人的 clinicopathological 参数之间的协会被 chi (2 ) 评估测试。Kaplan-Meier 方法被用来分析幸存。结果：在 D21S1890， D21S1893，和 TFF3 的扩大的频率分别地是 32.5% ， 30.0% ，和 28.7% 。在盖住 D21S1893， D21S1890，和 TFF 的区域有扩大的病人显示出差的预后，而有删除的病人显示出有利预后(平均数：51.7 wk 对 124.82 wk， P = 0.012 ) 。穆尔蒂瓦里伊特·考克斯回归分析表明 D21S1893， D21S1890 和 TFF，血管侵略，和阶段的那扩大与差的预后被联系。结论：D21S1893-D21S1890 区域可以特别怀有候选人基因 TFF 和丝氨酸朊酶家庭，它可能涉及肿瘤侵略和转移贡献穷人幸存。在这个区域的扩大可以在 CCA 病人的治疗被用作一个预示的标记。

Trefoil factor与消化性溃疡

Trefoil factor(TFFs)是一族由一个或者几个三叶状结构域(trefoil domain)组成的黏蛋白相关肽.自从首个三叶肽(胰解痉肽,pSP,pTFF2)于本世纪70年代末被分离以后,对其研究逐渐深入,其研究焦点集中在对胃肠道黏膜损伤后保护作用和促进溃疡愈合作用方面.

Production of human intestinal trefoil factor in Pichia pastoris

Objective:To construct a Pichia pastoris (P. pastoris) expression vector of human intestinal trefoil factor (hITF) and study its expression and purification procedures. Methods:hITF gene encoding mature peptide was modified with a polyhistidine tag sequence at the N-terminal, and then inserted into the P. pastoris expression vector pGAPZαA at the downstream of theα-mating factor signal. After gene sequencing, the recombinant pGAPZαA-hITF was transformed into the P. pastoris strain X-33 with lithium chloride. rhITF was induced to constitutively express in shake flask, and then analyzed with Tricine SDS-PAGE and Western blotting. The obtained rhITF was isolated from the cultured supernatants by ammonium sulfate precipitation, Ni-NTA affinity chromatography, and ultrafiltration. Results:The correctness and integrity of rhITF were identified by restriction digestion and gene sequencing. rhITF was successfully expressed to 50 mg/L as a secretive protein. After purification, the purity was above 95%. Tricine SDS-PAGE and Western-blot analysis showed that rhITF presented as a single band with a molecular weight of 10 kDa, a little larger than 7 879 Da as assayed by mass spectrometry analysis. Conclusion: hITF P. pastoris expression vector is successfully constructed and rhITF is expressed in P. pastoris at commercially relevant level. This research lays foundation for the further functional studying of hITF.

血清血管细胞黏附因子1和三叶因子3水平与晚期非小细胞肺癌化疗效果及预后的关系

目的研究血管细胞黏附因子1(VCAM1)、三叶因子3(TFF3)水平与晚期非小细胞肺癌(NSCLC)患者化疗效果及预后的关系。方法选取2019年2月至2021年2月江苏省肿瘤医院收治的112例接受铂类化疗初治的晚期NSCLC患者为观察组,另选取同期体检健康的70例受试者为对照组。检测受试者血清VCAM1、TFF3水平。根据化疗结束后的效果,将观察组患者分为化疗有效组和化疗无效组。随访1年,比较不同血清VCAM1、TFF3表达水平晚期NSCLC患者生存预后差异。采用多因素Cox回归模型分析影响晚期NSCLC患者生存预后的因素。结果观察组血清VCAM1、TFF3水平均高于对照组[(227±24)μg/L比(79±13)μg/L、(1.59±0.37)μg/L比(0.47±0.14)μg/L],差异均有统计学意义(均P<0.001)。晚期NSCLC患者血清VCAM1、TFF3水平与肿瘤分化程度及TNM分期有关(均P<0.05)。化疗无效组患者血清VCAM1、TFF3水平均高于化疗有效组,差异均有统计学意义(均P<0.001)。VCAM1高表达组1年总体生存率为26.9%(14/52),VCAM1低表达组为55.0%(33/60),组间比较差异有统计学意义(Log-rankχ^(2)=12.181,P<0.001)。TFF3高表达组1年总体生存率为27.8%(15/54),TFF3低表达组为55.2%(32/58),组间比较差异有统计学意义(Log-rankχ^(2)=14.146,P<0.001)。多因素Cox回归分析结果显示,肿瘤低分化程度、TNM分期Ⅳ期、VCAM1高表达、TFF3高表达是晚期NSCLC患者不良预后的独立危险因素(均P<0.001)。结论晚期NSCLC患者血清VCAM1、TFF3水平升高,二者与不良临床病理特征、化疗效果有关。

血清TFF1、CCL22的表达对口腔癌患者预后的预测价值

目的探讨血清三叶因子1(TFF1)、血清CC趋化因子配体22(CCL22)的表达对口腔癌患者预后的预测价值。方法回顾性分析70例口腔癌患者和70例健康体检志愿者的临床资料,将口腔癌患者设为观察组,并根据其预后情况分为预后良好组(50例)和预后不良组(20例);另将健康体检志愿者作为对照组。检测受试者的血清TFF1、CCL22水平,并分析血清TFF1、CCL22表达水平对口腔癌预后的预测价值。结果观察组血清TFF1、CCL22表达水平明显高于对照组(P<0.05);预后不良组血清TFF1、CCL22表达水平明显高于预后良好组(P<0.05)。血清TFF1+CCL22对口腔癌患者预后预测的灵敏度、特异度明显高于血清TFF1与血清CCL22(P<0.05)。结论血清TFF1与CCL22联合预测口腔癌预后具有较高的灵敏度和特异度,可为口腔癌预后的预测提供一定参考。

三叶因子家族肽3在慢性鼻窦炎伴鼻息肉中的表达及其对黏蛋白5AC表达的调控研究

目的探究三叶因子家族肽3(trefoil factor family peptide,TFF3)在慢性鼻窦炎伴鼻息肉(CRSwNP)中的表达及其对黏蛋白5AC(MUC5AC)表达的调控。方法选取16例CRSwNP组患者的鼻息肉组织及16例对照组患者的鼻黏膜组织,通过实时荧光定量聚合酶链式反应(RT-qPCR)、Western blot检测TFF3和MUC5AC的表达并进行两者的相关性分析;构建TFF3敲低(KD-TFF3)的人鼻黏膜上皮细胞(HNEpC)系,通过RT-qPCR、免疫荧光技术检测KD-TFF3 HNEpC中MUC5AC的表达。结果TFF3表达水平在鼻息肉组织中较对照组显著降低,MUC5AC表达水平升高,且两者的表达水平具有负相关关系(r=-0.556,P<0.05)。KD-TFF3 HNEpC中,MUC5AC表达较对照组显著升高。结论TFF3在CRSwNP中表达下降且与MUC5AC的表达负相关,为治疗以CRSwNP为代表的慢性鼻腔炎症性疾病黏液异常高分泌提供新的思路。

TFF3在结直肠癌发生发展中的价值

三叶因子3(trefoil factor 3,TFF3)作为三叶因子家族的成员之一,广泛存在于机体的黏膜上皮细胞中。在生理情况下,TFF3具有保护黏膜的功能。但当机体发生溃疡、炎症和恶性病变时,TFF3的表达水平会随着病理过程的进展而异常改变。特别是在结直肠癌中,TFF3的异常表达参与了多种生物学过程的调控,包括促进细胞的侵袭和转移、抑制细胞凋亡、调控EMT过程以及影响细胞自噬等。此外,TFF3作为一种分泌性多肽,能被检测到存在于血清中,并且在结直肠癌患者中明显升高,因此,作为一种新型生物标志物检测TFF3的表达水平在结直肠癌的诊断和预后评估中具有重要价值。

血清LncRNA NEAT1、TFF1在视网膜母细胞瘤中的表达及预后评估价值

目的分析视网膜母细胞瘤(Rb)患儿血清长链非编码RNA核内富集转录物1(LncRNA NEAT1)、三叶因子1(TFF1)表达及预后评估价值。方法选取2018年1月—2021年1月首都医科大学附属北京安贞医院南充医院眼科手术治疗的Rb患儿85例作为Rb组,以同期体检健康者60例为健康对照组。采用实时荧光定量PCR检测血清LncRNA NEAT1水平,采用酶联免疫吸附试验检测血清TFF1;分析血清LncRNA NEAT1、TFF1与临床病理特征的关系;Cox回归分析Rb预后影响因素;受试者工作特征(ROC)曲线分析血清LncRNA NEAT1、TFF1对Rb患儿预后的评估价值。结果Rb组血清LncRNA NEAT1水平高于健康对照组,血清TFF1低于健康对照组(t/P=38.305/<0.001、34.858/<0.001)。与肿瘤直径<20 mm、病理分化型Rb患儿比较,肿瘤直径≥20 mm、未分化型Rb患儿血清LncRNA NEAT1较高,TFF1较低(LncRNA NEAT1:t/P=17.925/<0.001,16.848/<0.001;TFF1:t/P=12.505/<0.001,8.120/<0.001)。血清LncRNA NEAT1高表达组3年无进展生存率低于低表达组(57.50%vs.88.89%),TFF1低表达组3年无进展生存率低于高表达组(57.14%vs.90.70%)(Log rankχ^(2)/P=13.551/<0.001、15.310/<0.001)。病理未分化型、血清LncRNA NEAT1升高是影响Rb预后的危险因素,血清TFF1升高是其保护因素[HR(95%CI)=1.523(1.147~2.024),1.473(1.108~1.957),0.612(0.413~0.908)];血清LncRNA NEAT1、TFF1及二者联合预测Rb预后的曲线下面积分别为0.836、0.861、0.921,二者联合大于血清LncRNA NEAT1、TFF1单项检测(Z=4.823、4.312,P均<0.001)。结论Rb患儿血清LncRNA NEAT1升高,血清TFF1水平降低,两者与肿瘤最大径及病理分型有关,均是影响Rb患儿预后的因素,两者联合有助于评估患者预后。

血清sB7-H3、TFF1、LCN-2联合检测对乳腺癌的诊断价值

目的:探讨乳腺癌(BC)患者血清中可溶性B7同源体3(sB7-H3)、三叶因子1(TFF1)、脂质运载蛋白2(LCN-2)的水平对疾病诊断的临床价值。方法:选取黄河三门峡医院2020年3月—2023年3月收治的196例BC初诊患者作为研究对象,设为BC组;同期84例乳腺良性病变患者和行76例体格检查健康者分别作为良性病变组和对照组;同时收集临床资料。采用ELISA法检测各组血清sB7-H3、TFF1、LCN-2水平,并分析其与BC患者临床病理特征的关系;Spearman法分析影响BC患者血清sB7-H3、TFF1、LCN-2水平与临床病理特征的相关性;绘制受试者工作特征(ROC)曲线评估血清sB7-H3、TFF1、LCN-2水平对BC的诊断价值。结果:与对照组相比,良性病变组、BC组血清sB7-H3、TFF1、LCN-2水平明显升高(P<0.05),且BC组血清sB7-H3、TFF1、LCN-2水平明显高于良性病变组(P<0.05);肿瘤直径>2 cm、TNM分期为Ⅲ/Ⅳ期、淋巴结转移和ER表达为阴性的BC患者血清sB7-H3、TFF1、LCN-2水平明显升高(P<0.05),且血清sB7-H3、TFF1、LCN-2水平与肿瘤直径(r=0.463、0.442、0.481,P<0.001)、TNM分期(r=0.474、0.394、0.562,P<0.001)及淋巴结转移呈正相关(r=0.567、0.488、0.409,P<0.001),与ER表达呈负相关(r=-0.575、-0.534、-0.538,P<0.001);血清sB7-H3、TFF1、LCN-2单独诊断BC的AUC分别为0.817、0.814、0.830,联合诊断效果优于单独诊断(AUC=0.911,95%CI=0.871~0.942)。结论:BC患者血清中sB7-H3、TFF1、LCN-2水平明显升高,三者联合诊断BC的临床价值较高。