基质金属蛋白酶及其组织抑制剂与食管癌浸润转移的关系

目的:研究基质金属蛋白酶-9(MMP-9)及其相应的组织金属蛋白酶抑制剂-1(TIMP-1)在食管癌组织上的表达及其在细胞浸润转移过程中所起的重要作用。方法:采用免疫组织化学链霉素抗生物素蛋白-过氧化物酶(SP)法检测的50例食管癌组织中MMP-9及TIMP-1的表达。结果:MMP-9在食管癌组织的阳性表达率为76％,其表达与淋巴结转移呈正相关(Pearson列联系数0.343,P<0.05)。TIMP-1在食管癌组织表达的阳性率为30％,其表达与淋巴转移呈负棚关(Pearson列联系数为O.333,P<0.05)。结论:MMP-9阳性表达与食管癌浸润转移呈正相关,TIMP-1阳性表达与食管癌浸润转移呈负相关,二者在食管癌浸润转移中的关系表现为MMP-9促进肿瘤转移,TIMP-1对食管癌有独立的抑制作用。通过检测食管癌组织中的MMP-9及TIMP-1的表达,对预后的评价有一定价值。     

DNA ploidy analysis and expression of MMP-9, TIMP-2, and E-cadherin in gastric carcinoma

AIM: To investigate DNA ploidy and expression of MMP-9, TIMP-2, and E-cadherin in gastric carcinoma and to explore the mechanism of invasion and metastasis of gastric carcinoma. METHODS: Immunohistochemical methods were used to detect the expressions of MMP-9, TIMP-2, and E-cadherin in 156 cases, including 99 cases of gastric carcinoma, 16 cases of adjacent noncancerous mucosa, 16 cases of distant metastases and 25 cases of metastatic lymph node (LN) from gastric carcinoma. Flow cytometry DNA ploidy and S-phase fraction (SPF) analysis were performed on 57 cases, including 47 cases of gastric cancer, 6 cases of adjacent noncancerous mucosa, and 4 cases of distant metastatic cancer. RESULTS: The expression of MMP-9 was significantly correlated with Lauren's classification, Borrmann's classification, LN metastasis, tumor metastasis, and TNM stage, as well as depth of invasion (all P<0.05). The positive rate was lower in noncarcinoma than in carcinoma (31.3% vs66.7%, P<0.01). The expression of TIMP-2 was significantly correlated with Borrmann's classification, LN metastasis, and the depth of invasion (all P<0.05), The expression of E-cadherin was significantly correlated with differentiation, Lauren's classification, Borrmann's classification, and LN metastasis, as well as the depth of invasion (P<0,01 or P<0.05). E-cadherin was less expressed in carcinoma than in noncarcinoma (42.4% vs87.5%, P<0.01). There was a positive correlation between MMP-9 and TIMP-2 and a negative correlation between MMP-9 and E-cadherin, but no correlation between TIMP-2 and E-cadherin. Also there was a positive correlation between DNA aneuploid rate and differentiation and LN metastasis. SPF that was higher than 15% was positively correlated with tumor size, differentiation and LN metastasis. And there was a significant difference between carcinoma and noncarcinoma in DNA aneuploid rate and SPF. CONCLUSION: With tumor progression and development of heterogeneity, the abnormal expressions of MMP-9, TIMP-2, and E-cadherin or DNA aneuploid rate or high SPF gradually increases, suggesting that they play a crucial role in gastric carcinoma progression.     

Usefulness of MMP-9/TIMP-1 in Predicting Tumor Recurrence in Patients Undergoing Curative Surgical Resection for Gastric Carcinoma

Degradation of the extracellular matrix is an essential step in tumor invasion and metastasis. It involves the actions of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs). We evaluated the expression of MMP-9 and TIMP-1 in gastric carcinomas and the relationship between this expression and tumor recurrence. Eighty patients who had undergone curative surgical resection for gastric carcinoma were included. Resected gastric tissue samples were stained immunohistochemically to evaluate the expression of MMP-9 and TIMP-1. TIMP-1 expression was related to the depth of tumor invasion and lymph node metastasis. The proportion of tumors larger than 5 cm, or displaying muscle layer invasion, and the cumulative incidence of tumor recurrence were significantly elevated in patients with tumors expressing TIMP-1. Furthermore, these measures were lowest in patients with no TIMP-1 expression and highest in patients who only expressed TIMP-1. In conclusion, TIMP-1 expression and the balance between expression of MMP-9 and expression of TIMP-1 may be important indicators of tumor progression and predictors of tumor recurrence.     

基质金属蛋白酶-9和组织金属蛋白酶抑制剂-1在食管鳞癌中的表达

目的探讨基质金属蛋白酶-9（MMP-9）和组织金属蛋白酶抑制剂-1（TIMP-1）在食管鳞癌中的表达及其临床意义。方法用免疫组化和Western blot法分别检测41例食管鳞癌患者的癌及相应正常组织中MMP-9和TIMP-1的表达变化。结果食管鳞癌组织中MMP-9阳性表达率与食管癌淋巴结及静脉转移有关；MMP-9的阳性表达率与表达量均显著高于TIMP-1；MMP-9和TIMP-1的表达呈负相关。结论MMP-9与食管鳞癌的侵袭转移有关，其机制可能与食管鳞癌组织中的MMP-9／TIMP-1平衡失调有关；MMP-9与TIMP-1联合检测有助于食管鳞癌生物学行为的判断。     

Matrix metalloproteinase-2 and tissue inhibitor of metallo-proteinase-2 in colorectal carcinoma invasion and metastasis

AIM: To explore the relationship between matrix metallopr- oteinase-2 (MMP-2) and tissue inhibitor of metallopr- oteinase-2 (TIMP-2) in the development of colorectal carcinoma and to provide a valuable marker for clinical diagnosis. METHODS: Twenty-five patients with colorectal carcinoma underwent surgical resection. Samples were taken from tumor sites and normal tissues. MMP-2 activity was determined by gelatin zymography. Western blot and ABC immunohist-ochemical staining were used to detect the expression levels of MMP-2 and TIMP-2 in normal and colorectal carcinoma tissues. Statistical analyses were performed using the Student's t test and one-way ANOVA. P<0.05 was considered statistically .significant. All the statistical analyses were performed using SPSS 10.0 software. RESULTS: MMP-2 activity could be detected in both normal and colorectal carcinoma tissues. MMP-2 activity in colorectal carcinoma tissues was much higher than that in normal tissues (P<0.05, t=3.916,4.227). MMP-2 activity was positively related to the colorectal carcinoma invasion depth, lymph node metastasis and Duke's stage. Western blot and ABC immunohistochemical staining demonstrated that the expression level of MMP-2 in colorectal carcinoma tissues was much higher than that in normal tissues (P<0.05, t = 9.429), but the expression level of TIMP-2 in colorectal carcinoma tissues was much lower than that in normal tissues (P<0.05, t = 7.329). The MMP-2/TIMP-2 ratio of colorectal carcinoma was much higher than that of normal tissues. With the progression of invasion depth, lymph node metastasis and tumor Duke's stage, the activity and expression level of MMP-2 and TIMP-2 gradually increased, but the MMP-2/TIMP-2 ratio gradually decreased. CONCLUSION: The balance between MMP-2 and TIMP-2 plays a crucial role in the process of colorectal carcinoma invasion and metastasis.     

胃癌组织中KISS-1和MMP-9的表达及其意义

目的探讨肿瘤转移抑制基因K ISS-1及基质金属蛋白酶9（MMP-9）与胃癌侵袭、转移的关系,为研究胃癌的转移机制及治疗提供理论基础。方法采用逆转录聚合酶链反应（RT-PCR）检测36例胃癌组织及36例正常胃组织中K ISS-1 mRNA及MMP-9 mRNA的表达情况,分析其与胃癌患者各临床病理指标的关系及二者的相关性。结果 K ISS-1 mRNA在胃癌组织中的阳性表达率及表达水平均低于正常胃组织（P均〈0.01）,并且其低表达与淋巴结转移密切相关（P〈0.05）;MMP-9 mRNA在胃癌组织中的阳性表达率及表达水平均高于正常胃组织（P均〈0.05）,MMP-9 mRNA的高表达与癌的浸润深度和淋巴结转移密切相关（P均〈0.05）;K ISS-1与MMP-9表达呈负相关（P〈0.05）。结论 K ISS-1表达缺失和MMP-9过表达可能与胃癌的侵袭相关。     

胃癌组织Maspin,uPA,MMP-7表达的意义

目的:观察胃癌及正常胃黏膜Maspin,uPA, MMP-7表达的意义．方法:应用免疫组化SP法检测胃管状腺癌30 例,胃印戒细胞癌30例,正常胃黏膜组织20例中Maspin,uPA,MMP-7的表达情况．结果:在胃管状腺癌中Maspin,uPA,MMP-7 阳性表达率分别为50％,70％和80％;胃印戒细胞癌中阳性表达率分别为46．7％,76．7％和 90％;正常胃黏膜组织中阳性表达率分别为 90％,35％和30％．Maspin的表达与浸润深度、淋巴结转移相关,而与肿块的大小和TNM分期无关．uPA和MMP-7的表达与浸润深度、淋巴结转移、TNM分期相关,而与肿块的大小无关．Maspin的表达与uPA和MMP-7的表达呈负相关(P=0．012,r=-0．322;P=0．008,r= -0．341);uPA的表达与MMP-7的表达呈正相关 (P=0．034,r=0．274)．结论:Maspin在胃癌中表达下调,uPA和 MMP-7在胃癌中过表达,他们在胃癌的浸润转移中起重要作用,可作为反应胃癌病理生物学行为的有效指标．     

胃癌组织中PTEN,MMP-9和Caspase-3表达的关系

目的:研究PTEN,MMP-9和Caspase-3在胃癌及正常胃组织中的表达,探讨他们在胃癌的发生、发展、浸润和转移中的作用．方法:选择临床病理资料齐全的胃癌蜡块标本54例,另取正常胃黏膜标本15例作对照．采用SP免疫组化方法检测PTEN,MMP-9和 Caspase-3在其中的表达．结果:胃癌中PTEN低表达(28/54,51．9％),且肿瘤浸润深(P=0．004)、有淋巴(P=0．003) 和远隔转移(P=0．01 5)、临床分期高(P= 0．001)、病理分化低(P=0．008)时降低．胃癌中MMP-9高表达(41／54,75．9％),且肿瘤浸润深(P=0．040)、有淋巴转移(P=0．025)、临床分期高(P=0．039)、病理分化低(P=0．009)时增高．胃癌中Caspase-3低表达(12／54,22．2％), 且有淋巴转移(P=0．045)、临床分期高(P= 0．015)、病理分化低(P=0．035)时降低．胃癌中PTEN与MMP-9(r=-0．543,P=0．001), Caspase-3与MMP-9的表达负相关(r=0．741, P=0.001),PTEN与Caspase-3的表达正相关(r =0．515,P=0．001)．结论:胃癌中PTEN,Caspase-3低表达,MMP-9 高表达;PTEN、MMP-9和Caspase-3可作为胃癌诊断和预后判断的指标．     

胃癌组织中MMP-9和TIMP-1的表达及其临床意义

背景：有关胃癌组织中基质金属蛋白酶（MMPs）和金属蛋白酶组织抑制剂（TIMPs）表达的研究不多且结果不一。目的：探讨胃癌组织中MMP-9和TIMP-1的表达及其临床意义。方法：收集临床病理资料完整的98例胃癌患者。应用免疫组化法检测组织中MMP-9和TIMP-1表达．并分析其与临床病理特征的关系以及各参数对胃癌患者预后的影响。结果：胃癌组织中MMP-9高表达与浸润深度、淋巴结转移和TNM分期显著相关（P〈0．01）。单因素分析显示胃癌患者预后与MMP-9高表达（P=0．014）、浸润深度（P〈0．001）、淋巴结转移（P〈0．0001）和TNM分期（P〈0．0001）相关。TIMP-1表达与胃癌患者临床病理特征和预后无关。结论：MMP-9高表达与胃癌的发生、进展有关,可作为胃癌患者预后指标之一。     

MMP-7与Fas蛋白在胃癌组织中的表达及意义

目的:探讨基质金属蛋白酶-7(MMP-7)蛋白和Fas蛋白在胃癌组织中的表达、相互关系及意义.方法:应用免疫组化方法检测了82例胃癌组织及30例周边正常胃黏膜中MMP-7和Fas的表达情况.结果:胃癌组织中MMP-7蛋白阳性率显著高于正常胃黏膜(73.2%vs10%,P<0.001);正常胃黏膜中Fas蛋白阳性率显著高于胃癌组织(39.1%vs93.3%,P<0.001).MMP-7阳性表达率与淋巴结转移、TNM分期显著相关(P<0.001),而与肿瘤细胞分化程度无显著性相关.Fas蛋白阳性表达率与肿瘤细胞分化程度显著相关(P<0.05),而与淋巴结转移、TNM分期无显著性相关.胃癌组织中MMP-7与Fas表达具有显著等级负相关(r=-0.597,P<0.001).结论:MMP-7与Fas表达胃癌的生物学行为密切相关,且两者之间的表达强度具有显著等级负相关.     

COX-2和MMP-2的表达与食管癌侵袭转移的关系

目的探讨COX－2和MMPZ的表达与食管癌侵袭和转移的关系。方洁应用兔疫组织化学（S法）检测COX．2、 ＊＊kZ在45例食管鳞癌，癌旁组织中的表达。结果＊ox之和＊＊P之在食管癌组织中表达的阳性率显著高于癌旁组织（P＜ 0．05）O COLZ和＊M卜2在有外膜浸润组和淋巳结转移组阳性表达率明显高于无外膜浸润组和无淋巴结转移组（P＜0．0到。C012 和＊＊＊2在食管癌组织中的表达密切相关（P＜0刀别。结论食管癌组织中C0lz和＊M卜2的高表达促进了食管癌的侵袭和转 移，COX．2利MMPZ在食管癌组织中的表达有相关性。提示COX．2和MMP毛可作为判断预后的指标和化学治疗的靶点。     

胃癌中MMP-9和VEGF的表达及其临床意义

目的探讨基质金属蛋白酶-9(matrix metalloproteinases-9,MMP-9)基因和血管内皮生长因子(VEGF)在胃癌中的表达及其与临床病理因素之间的关系。方法采用免疫组化SP法检测97例胃癌组织中MMP-9和VEGF的表达情况。结果97例胃癌组织中MMP-9和VEGF阳性率分别为82.47%(80/97)、86.59%(84/97),两者表达存在相关性(P<0.05)。结论MMP-9和VEGF蛋白在胃癌中过量表达与胃癌的发生发展相关,可以作为判断预后的指标之一。     

胃癌中胸苷磷酸化酶和基质金属蛋白酶2的表达及意义

目的探讨胃癌中胸苷磷酸化酶（TP）和基质金属蛋白酶2（MMP-2）表达的意义及其与肿瘤浸润转移的关系。方法免疫组化SP法检测69例不同胃黏膜组织（正常胃黏膜组10例、慢性胃炎组10例、胃癌组39例、胃癌转移的淋巴结组10例）中TP和MMP-2的表达情况。结果胃癌组织及淋巴结胃癌转移灶中TP与MMP-2的表达较正常组及慢性胃炎组显著增高（P〈0．05）。TP与MMP-2表达与胃癌患者的性别、年龄及肿瘤的分化程度无关。肿瘤≥5cm组及T3-4组TP阳性率湿著高于〈5cm组及T1-2组,有远处转移的胃癌组TP阳性率高于无远处转移组,差具有显著性（P〈0．05）;临床Ⅰ-Ⅱ期和Ⅲ-Ⅳ期之间TP阳性率的差异也具有显著性（P〈0．001）。MMP-2在T1-2组与T3-4组的阳性率分别为60．87％和93．75％,有显著性差异（P〈0．05）。在有淋巴结转移的胃癌组MMP-2阳性率显著高于无淋巴结转移组（P〈0．05）;临床Ⅰ-Ⅱ期阳性表达59．09％,Ⅲ-Ⅳ期阳性表达为94．12％,两组有显著性差异（P〈0．05）。而MMP-2表达却与肿瘤大小及远处转移无关。TP表达阳性的胃癌中MMP-2阳性率88．00％高于TP阴性组的50．00％。结论胃癌中TP与MMP-2表达增高与肿瘤进展的病理临床参数有关;TP的表达与MMP-2的表达有关,提示TP在影响肿瘤进展的过程中可能通过MMP-2促进肿瘤浸润转移。     

胃癌组织MMP-9基因与血清中蛋白相关性研究

目的了解胃癌组织中基质金属蛋白酶-9（MMP-9）基因表达与术前血清中蛋白水平关系，探讨MMP-9表达与胃癌临床病理参数之间相关性。方法45例胃癌组织通过半定量逆转录聚合酶链反应（semi-RT-PCR）、免疫组织化学染色（IHC）、酶联免疫吸附（ELISA）方法检测组织中mRNA及蛋白表达情况，测定术前血清中蛋白水平。结果肿瘤组织基质金属蛋白酶-9mRNA表达程度、蛋白染色阳性率、血清中蛋白水平均显著高于正常对照组（P〈0．01）；胃癌组织蛋白表达阳性率与肿瘤是否侵犯至浆膜层相关（P〈0．05）；术前血清中蛋白水平与肿瘤TNM分期、淋巴结转移显著相关（P〈0．01）。结论检测基质金属蛋白酶-9表达对胃癌有一定诊断意义；胃癌组织中蛋白表达率及术前血清中蛋白水平对临床肿瘤病情评估具有指导意义；也许多种机制参与了胃癌术前血清中MMP-9蛋白的分泌。     

Expression of MMP—2,TIMP—2 protein and the ratio of MMP—2／TIMP—2 in gallbladder carcinoma and their significance

AIM: To study the correlation between expression of MMP-2, TIMP-2 protein and the ratio of MMP-2/TIMP-2 and clinicalpathological parameters of patients with gallbladder carcinoma.METHODS: Carcinomas (n=45) and polypoid lesions (n=15) of the gallbladder were studied for the expression of MMP-2 and TIMP-2 protein by immunohistochemical avidin-biotin-complex method and image analysis. Clinicalpathological data of patients with gallbladder carcinoma such as histological type, grade of differentiation, level of infiltration, liver invasion and lymph node involvement, etc, were recorded.RESULTS: There was significant difference between the average level (1.123±0.108 VS 1.030±0.054, P=0.002) of MMP-2, the ratio (1.050±0.013 VS0.937±0.078, P=0.003) of MMP-2/TIMP-2 in gallbladder carcinomas and in polypoid lesions of the gallbladder. Significant difference was found between the expression of MMP-2 in early stage and advanced tumors, but there was no correlation between MMP-2 protein expression and histological type, differentiation degree, infiltration level, lymph node involvement or liver invasion. Although no difference was observed between TIMP-2 expression and histological type or differentiation degree, signific ant difference was found between TIMP-2 expression and different Nevin stage, infiltration level, local lymph node involvement or liver invasion (1.168±0.067 VS1.048±0.075, 1.170±0.062 vs 1.039±0.06g, 1.039±0.076 VS1.147±0.083, 1.048±0.074 vs 1.103±0.095, P＜0.05). MMP-2/TIMP-2 ratio did not correlate with histological type, grade of differentiation and liver invasion, but significant differences were found between MMP-2/TIMP-2 ratio and different Nevin stage, infiltration level and lymph node involvement in patients with carcinoma of gallbladder.CONCLUSION: TIMP-2 and MMP-2/TIMP-2 ratio could reflect more accurately biological characteristic of gallbladder carcinoma and MMP-2/TIMP-2 ratio might be a new significant marker in early diagnosis, in the judgment of invasion or metastasis and the estimate of prognosis in patients with gallbladder carcinomas.     

Enhanced Cell Surface Expression of Matrix Metalloproteinases and Their Inhibitors, and Tumor-Induced Host Response in Progression of Human Gastric Carcinoma

The cell surface and/or intracellular expression of the matrix metalloproteinases (MMP -2, 7, and -9 and MT1-MMP) and their inhibitors (TIMP-2 and -4) were investigated in tumor and tumor-infiltrating lymphocytes (TIL) in gastric carcinoma (n = 15) from the primary locus, metastatic gastric carcinoma (n = 20) from malignant ascites, and benign gastric mucosa (n = 20) for the control. The quantitative analysis was based on the percentage of positive cells by flow cytometry. The results clearly showed increased cell surface expression of MMP-2, -7, and -9, MT1-MMP, and TIMP-2 and -4 in both tumor cells and TIL during the development of invasion and/or metastasis of gastric carcinoma. There were equilateral correlations with cancer progression and frequency of cell surface expression of MMPs and their inhibitors, TIMPs, suggesting not only the aggressive nature of particularly metastatic gastric carcinoma, but also the presence of MMPs complexed with TIMPs on tumor cells and TIL. The enhanced cell surface expression of MMPs and TIMPs on TIL within metastatic carcinoma nests showed the result of a host response induced by tumors. These suggest that the increased cell surface expression of MMPs and TIMPs, and tumor-induced host response play a key role in gastric cancer invasion and/or metastasis.     

MMP-2和MMP-9蛋白在结肠癌中的表达

目的:分析基质金属蛋白酶-2(MMP-2)和MMP-9蛋白与结肠癌病理因素的关系,探讨MMP蛋白在结肠癌发生中的临床意义.方法:用SP免疫组化法检测31例结肠癌中MMP-2和MMP-9蛋白表达情况,并用SPSS10.0forWindows软件统计分析MMP蛋白与临床病理因素的关系.以20例溃疡性结肠炎、21例结肠腺瘤和10例正常结肠黏膜作为对照组.结果:MMP-2除结肠癌组和正常结肠黏膜组间相比具有显著性差异(10.0%vs54.8%,P<0.05)外,其余各组间比较差异无统计学意义,MMP-9各组间比较差异无统计学意义,从溃疡性结肠炎、结肠腺瘤到结肠癌中MMP-2和MMP-9蛋白表达阳性率不同且具有递增趋势.MMP-2和MMP-9蛋白表达与结肠癌的Duke’s分期及有无淋巴结转移显著相关(A B期:38.9%和27.8%;C D期:76.9%和84.6%;无淋巴结转移:38.9%和27.8%;有淋巴结转移:76.9%和84.6%,P<0.05).结论:MMP-2和MMP-9蛋白过度表达对结肠癌的诊断、Duke's分期及有无淋巴结转移判断具有重要的临床意义.     

Correlative studies on bFGF mRNA and MMP-9 mRNA expressions with microvascular density, progression, and prognosis of gastric carcinomas

AIM: To investigate the mRNA expressions of bFGF and MMP-9 in gastric carcinomas so as to reveal their correlations with tumor microvascular density (MVD),invasion, metastasis, and prognosis. METHODS: In situ hybridization and immunohistochemical techniques were used to detect the expressions of bFGFmRNA and MMP-9mRNA and the proteins of CD34 in 105 specimens of gastric carcinomas. RESULTS: In situ hybridization study showed that positive rates of bFGF mRNA and MMP-9mRNA expressions were 60.95% and 59.19%; the mean MVD was 46.09±11.52 and 43.75±13.41, respectively in piece/0.72 mm2 in tumors with bFGFmRNA and MMP-9mRNA positive expressions, which were significantly higher than those with negative expression (29.41±12.47; 33.45±13.92 piece/0.72 mm2, respectively). The positive expression rates of bFGFmRNA and MMP-9mRNA were correlated to the tumor invasion depth (rs= 0.211, P= 0.031; rs= 0.335, P= 0.001), growing pattern (rs= 0.324, P= 0.001; rs= 0.267, P= 0.006), vessel invasion (rs= 0.579, P= 0.001; rs = 0.209, P= 0.032), lymph node metastasis (rs= 0.405, P= 0.001; rs= 0.343, P= 0.001) and distant metastasis (rs= 0.474, P= 0.001; rs = 0.468, P = 0.001), but not correlated to tumor type (rs=0.134,P=0.173;rs=0.103,P=0.145) and differentiations (rs=0.096,P= 0.332;rs=0.102,P=0.298). The mean MVD was much higher in the tumors with infiltrating growth at stage T3-T4, with vessel invasion, lymph node metastasis and distant metastasis than those with expanding growth type (t = 10.105, P= 0.001) at stage T1-T2 (t=5.961,P=0.001),with non-vessel invasion (t=7.394,P=0.001),non-lymph node metastasis (t = 3.819, P= 0.01) and non-distant metastasis (t = 10.578, P= 0.001). Positive correlation was observed between MVD and the expressions of bFGFmRNA and MMP-9mRNA (t = 3.207, P=0.002; t = 7.035, P= 0.001, respectively). The mean survival time and 5-year survival rate were lower in cases with MVD over 39.5 and the positive expressions of bFGFmRNA and MMP-9mRNA than those with MVD less than 39.5 and the negative expressions of bFGFmRNA and MMP-9mRNA. CONCLUSION: bFGF and MMP-9 promote the angiogenesis of the gastric cancers. Detection of the expressions of bFGF and MMP-9 can serve as a useful index to determine the angiogenesis, invasion, metastasis, and prognosis of gastric cancers.