p53和nm23-H1蛋白表达与食管癌浸润转移的关系

Objective To study the relationship between expression of p53 and nm23-H1 and differentiation, invasiveness and metastasis in human esophageal carcinoma, and the correlation between expression of p53 and nm23-H1. Methods Expression of p53 and nm23-H1 in 50 patients with squamous cell carcinoma of esophagus was detected by using immuno-histochemical S-P methods. Results 35 cases (70%) and 32 cases (64%) of esophageal squamous cell carcinoma were positive for nm23-H1 protein and p53 protein, respectively. The expression of nm23-H1 was related to lymphatic metastasis (P<0.025), but not related to tumor differentiation, invasiveness, tumor location, tumor length, patient's gender and age (P>0.05). The lymphatic metastasis location positive group had a very lower expression of nm23-H1 and the negative rate was 70.8%, but the negative group had a higher expression and the positive rate was 65.4%. The expression of p53 was related to tumor differentiation and invasiveness (P<0.05), but not related to lymphatic metastasis, tumor location, tumor length, patient's gender and age(P>0.05). Among the three groups, the high differentiation group had the lowest expression of p53 and the positive rate was 29.2%, but the low differentiation group had the highest positive rate (71.4%). As for tumor invasiveness, the group of outer membrane of esophagus infiltrated had the highest p53 protein positive rate (56%), but in the group, of mucous or submucous layer infiltrated p53 protien was not detectable. The low expression of nm23-H1 and the high expression of p53 were also correlated. The expression of nm23-H1 and p53 were both correlated with TNM stage of esophageal carcinoma (P<0.05). The better esophageal carcinomas differentiated, the lower nm23-H1 expressed and higher p53 expressed. Conclusion Low expression of nm23-H1 and high expression of p53 play an important role in the progression of squamous cell carcinoma of esophagus. Nm23-H1 might beta gene markef in the prophecy of patients' prognosis and benefit tumor treatment clinically.     

NM-23 H1 immunohistochemistry is not useful as predictor of metastatic potential of colorectal cancer.

This study aimed to investigate whether immunohistochemical staining for nm23-H1 protein in the primary tumour is correlated with tumour stage, tumour differentiation, DNA ploidy, cell proliferative index, p53 status and patient survival time in colorectal cancer. Full-cross colorectal cancer biopsies were collected from 202 consecutive surgical specimens between 1987 and 1990. Immunohistochemical expression of nm23-H1 protein was investigated in cryosections, using a monoclonal anti-nm23-H1 antibody (clone NM 301). The staining pattern was classified as follows: strong homogeneous intensity, moderate homogeneous intensity, moderate focal intensity, or as negative. Immunohistochemical expression of p53 was investigated using a monoclonal anti-p53 antibody (DO-7). The DNA ploidy and cell proliferative index were determined by flow cytometry. Possible correlation between nm23-H1 staining patterns and the other studied tumour characteristics was explored at the end of 1994. Median survival time of living patients was 66 months, range 50-93 months. No correlation was found between various nm23-H1 staining patterns and tumour stage, cell proliferative index or p53 status. Nm23-H1-negative tumours and tumours with moderate focal staining intensity were less differentiated than tumours with strong homogeneous or moderate homogeneous staining intensity (P < 0.05). Of the nm23-H1-negative tumours, a significantly higher number was near-diploid rather than aneuploid, as compared with those expressing positive nm23-H1 (P < 0.05). The number of dead patients in Dukes'' stages B and C did not correlate significantly with the nm23-H1 staining pattern. The nm23-H1 staining pattern alone, or combined with either of the other explored tumour characteristics, did not correlate with patient survival time. Immunohistochemical studies of the nm23-H1 protein expression are of minor value in the staging and prognostic prediction of colorectal cancer.     

BRCA1和nm23-H1与乳腺癌预后的关系

目的 :探讨BRCA1、nm2 3 H1在乳腺癌预后中的作用及相互关系。方法 :对 10 6例乳腺癌患者的肿瘤组织石蜡切片采用免疫组织化学染色 (S P法 )技术标记BRCA1、nm2 3 H1。结果 :乳腺癌组织中BRCA1、nm2 3 H1蛋白表达明显降低 ,与生存期呈正相关 ,与复发呈负相关 (P <0 0 5 )。BRCA1与nm2 3 H1蛋白表达水平呈正相关 (P <0 0 5 )。结论 :BRCA1、nm2 3 H1在乳腺癌组织内共同参与癌组织的浸润和转移 ,可作为预后的判断指标     

结肠癌nm23-H1和CD44V6及PCNA表达与DNA含量及转移潜能的相关性

目的探讨 nm23-H1、CD44V6和PCNA和DNA含量在结肠癌生长、浸润、转移中的作用及其相互关系.方法采用免疫组化S-P方法检测 152例结肠癌nm23-H1、CD44V6和PCNA.同时采用流式细胞光度术测定60例结肠癌D NA含量.结果152例结肠癌nm23-H1阳性率与淋巴结转移,P<0. 05、癌组织分化关系密切,P<0.01;CD44V6表达与Dukes分期(P<0.05) 、肿瘤浸润深度(P<0.05)、癌组织分化(P<0.05)及淋巴结转移(P<0.01)密切相关;PCNA表达与Dukes分期及肿瘤浸润深度有关(P<0.05);nm23-H1和CD44 V6表达,两者呈负相关(P<0.01),CD44V6阳性nm23-H1阴性表达的患者淋巴结转移率高于CD44V6阴性nm23-H1阳性表达者(P<0.05).伴淋巴结转移的结肠癌CD44V6和PCNA共同阳性表达率和异倍体癌的发生率高于无转移组(P <0.05).异倍体癌CD44V6和PCNA过度表达,而nm23-H1低表达(P<0.05) .结论nm23-H1、CD44V6和PCNA及DNA含量在结肠癌中的表达与其发生发展、侵袭转移密切相关,尤其CD44V6和nm23-H1表达在结肠癌转移中起协调作用,可成为临床估计肿瘤转移潜能的重要参考指标.     

膀胱癌中MMP-2与nm23的表达及其临床意义

目的　探讨膀胱癌组织中的MMP - 2与nm2 3-H1蛋白的表达及其临床意义。方法　采用免疫组化S -P法分析 6 3例手术切除膀胱癌中MMP - 2与nm2 3-H1蛋白的表达情况。结果　MMP - 2在膀胱移行细胞癌与乳头状瘤中的表达有显著性差异 (P <0 0 5 ) ,其表达与肿瘤分级与临床分期呈正相关 ;nm2 3-H1蛋白表达与肿瘤分期呈负相关 ,在肿瘤组织中随TCCB临床病理分期升高 ,MMP - 2表达增高趋势有显著性差异 ,而nm2 3-H1的表达随TCCB分级及临床分期的升高而呈现降低趋势 ,且有显著性差异 (P <0 0 5 )。结论　检测膀胱癌转移相关基因表达并分析其表达的相互关系 ,有助于判断膀胱癌的转移潜能及指导术后干预治疗     

nm23-H1与Tiam1在睑板腺癌中的表达及意义

目的:检测睑板腺癌组织中nm23-H1及Tiam1的表达,探讨其与临床病理特征的关系,评价其临床意义.方法:睑板腺癌标本34例及癌旁正常组织34例,应用Western blot法及qRT-PCR检测nm23-H1和Tiam1蛋白及mRNA的表达,观察其蛋白水平表达与临床病理特征的相关性,观察其与睑板腺癌术后复发的关系.结果:nm23-H1蛋白及mRNA在睑板腺癌组织中表达高于癌旁组织(P<0.05),Tiam1蛋白及mRNA在睑板腺癌组织中表达高于癌旁组织,差异有统计学意义(P<0.05).nm23-H1 及Tiam1蛋白表达水平与肿瘤直径、TNM分期、淋巴结转移及肿瘤分化程度有相关性(P<0.05),nm23-H1 及Tiam1与睑板腺癌术后复发率具有相关性,在复发的睑板腺癌中nm23-H1及 Tiam1表达高于未复发者(P<0.05).结论:nm23-H1和Tiam1表达水平与睑板腺癌的临床病理特征具有相关性,nm23-H1和Tiam1高表达提示睑板腺癌患者不良预后.     

Expression of nm23-H1 and nm23-H2 protein in endometrial carcinoma.

nm23 gene expression has been shown to be inversely correlated with tumour metastatic potential in some cancers but not in others. Examination was made of the expression of nm23-H1 and nm23-H2 gene products by immunohistochemistry and immunoblotting in 28 endometrial carcinomas. Immunohistochemistry indicated the cytoplasm of cancer cells to be positive, and myometrium and endometrial stromal cells negative, for nm23-H1 and -H2 protein. The staining intensity for these proteins was significantly stronger in well-differentiated adenocarcinomas (G1) than in those moderately differentiated (G2) (P < 0.05). nm23-H1 and -H2 proteins were shown by immunoblotting to be present at significantly higher levels in G1 than in G2 tumours (P < 0.05). Two of eight cases expressed high nm23-H1 and -H2 protein in poorly differentiated adenocarcinomas (G3). In G3 tumours, nm23 expression may be diverse. In this study, the expression of nm23-H1 and -H2 was not correlated with stage, metastasis, tumour size, myometrial invasion, oestrogen receptor, progesterone receptor or menopause. It follows from the findings presented above that the high expression of nm23-H1 and -H2 is positively correlated with histological differentiation.     

食管鳞癌中bcl-2与nm23-h1基因表达情况与纵隔淋巴结转移的相关研究

目的：研究与探讨bcl-2基因与nm23-h1基因在食管鳞状细胞癌中的表达情况及其与纵隔淋巴结转移的关系。方法：采用免疫组化SP法观察了85例食管鳞癌手术切除标本切片中bcl-2和nm23-h1的表达。结果：63．53％（54／85）肿瘤呈bcl-2阳性表达，bcl-2表达与肿瘤淋巴结转移及TNM分期有关（P均〈0．05）。40％（34／85）肿瘤呈nm23阴性表达，nm23-h1阴性表达与肿瘤侵润深度、淋巴结转移、TNM分期有关（P分别为0．032、0．001、0．001）。单因素分析显示：bcl—2基因与nm23-h1基因表达为影响淋巴结转移的主要因素（OR值分别为6．985、0．014，P〈O．001）。而其他临床病理学参数与淋巴结转移之间未见明显相关（P均〉0．05）。bcl-2基因与nm23-h1基因表达之间呈负相关（0=-0．3849，P〈0．05），在促进肿瘤的进展和转移过程中起联合作用。结论：bcl-2基因与nm23-h1基因联合测定是判断食管鳞癌患者淋巴结转移倾向及预后的一个重要手段。     

Expression of nm23-H1 gene product in nasopharyngeal carcinoma and its clinical significance

Objective: The nm23 gene is one of the tumor metastatic suppressor genes. The expression of nm23-H1 has been reported to be inversely associated with metastatic potentiality in a number of human carcinomas, including breast, colorectal, gastric, hepatocellular and gallbladder carcinomas. In this study, the immunohisto-chemical staining of nm23-H1 protein in human naso-pharyngeal carcinoma (NPC) was examined, and the relationship between nm23-H1 and both metastasis and prognosis of patients with NPC was also investigated. Methods: Routine LSAB immunohistochemistry with the nm23-H1 monoclonal murine antibody was employed to study the expression of nm23-H1 protein in 95 paraffin-embedded specimens of NPC treated at our hospital. The clinical pathologic data and results of follow-up were also retrieved. Comparisons between patients with and without expression of nm23-H1 protein with respect to metastasis, loco-regional recurrence and survival were performed using Log rank test. Multivariate prognostic analyses were performed by using Cox’s regression model. Results: Nm23-H1 negative expressive tumors were associated with a higher incidence of lymph-node metastasis (86.7%) than those of nm23-H1 positive (48.6%,P<0.01). Nm23-Hl negative expressive tumors were associated with a high incidence of recurrence and distant metastasis after radiotherapy (P<0.05). A significant association was found between expression of nm23-H1 and prognosis (P<0.01). The expression of nm23-H1 indicated favorable prognosis. Conclusion: It was suggested that nm23-H1 negative expression was significantly associated with lymph-node metastasis, recurrence and distant metastasis. Nm23-H1 may have value for predicting the prognosis of NPC.     

食管鳞状细胞癌中nm23-H1和p53蛋白表达及其相互关系

目的:探讨食管鳞癌组织中p53和nm23-H1蛋白的表达与癌组织分化浸润转移的关系,以及探讨两者之间的相关性,并进一步分析癌组织中p53和nm23-H1蛋白表达对食管癌患者的预后意义。方法:采用免疫组织化学(S-P法)方法对100例人食管鳞癌组织中的p53和nm23-H1蛋白的表达情况进行检测。结果:100例食管鳞癌组织中,nm23-H1阳性表达者70例(阳性率为70%),p53阳性表达者64例(阳性率为64%)。nm23-H1蛋白表达与食管癌淋巴结转移有关(P<0.025),与食管鳞状细胞癌的分化程度、肿瘤部位、浸润深度、病变长度以及患者性别、年龄无关(P>0.05)。p53蛋白表达与食管鳞状细胞癌的分化程度、浸润深度有关(P<0.05),与食管癌淋巴结转移、肿瘤部位、病变长度、患者性别、年龄无关(P>0.05)。高分化鳞癌组织中p53明显低表达(29.2%);低分化鳞状细胞癌组织中p53表达明显增高(71.4%)。食管外膜受累者p53表达较高(56%);仅发生食管粘膜和(或)粘膜下浸润组的癌组织中未发现有p53蛋白的表达。食管癌组织中nm23-H1蛋白低(高)表达与p53高(低)表达之间有明显相关性(P<0.01)。nm23-H1和p53蛋白表达亦与食管癌的TNM分期密切相关(P<0.05)。食管癌TNM分期越晚,其癌组织中nm23-H1蛋白表达越低,p53蛋白表达越高。结论:nm23-H1基因低表达与p53基因高表达可能在食管鳞状细胞癌浸润转移过程中发挥重要作用。nm23-H1可以作为食管鳞状细胞癌患者预后的基因标记,其蛋白表达产物的检测可以用于患者预后的判断,并为患者治疗方案的制定提供参考。     

CD44V6、E-cadherin和nm23-H1在肾细胞癌中的表达及意义

目的　探讨CD44V 6、E cadherinhe和nm 2 3 H 1蛋白表达与肾细胞癌 (RCC)的发生、发展及转移的关系。方法　采用免疫组化SP方法 ,检测 46例肾细胞癌组织和 10例正常肾组织中CD44V 6、E cadherin和nm 2 3 H 1蛋白的表达情况。结果　CD 44V 6蛋白在肾细胞癌组织中的阳性表达率为 2 6.1% ,CD 44V 6高表达与肾细胞癌脉管浸润转移呈正相关 (P <0 .0 5 )。nm 2 3 H 1和E cadherin蛋白在肾细胞癌组织中阳性表达率分别为 2 3 .9%和 5 8.7% ,显著低于正常肾组织 ( 10 0 .0 % ) (P <0 .0 1)。nm 2 3 H 1和E cadherin阳性表达与肾细胞癌的组织学分级相关 (P <0 .0 5 )。CD 44V 6、E cadherin、nm 2 3 H 1阳性表达与肾细胞癌组织学分型和肿瘤大小无关 (P >0 .0 5 )。结论　CD44V 6蛋白高表达和E cadherin、nm 2 3 H 1蛋白低表达是判断肾细胞癌的生物学行为的良好指标。     

Expression of nm23 protein in adult soft tissue sarcoma is correlated with histological grade

BACKGROUND: There is controversy about whether expression of nm23 is involved in suppression of metastases or contributes to tumour progression. Few studies have examined the role of nm23 in sarcomas. The aim of this study was to determine if expression of nm23 protein or its H1-subtype correlated with clinicopathological parameters in adult soft tissue sarcomas (STS). MATERIALS AND METHODS: Protein expression was examined by immunohistochemistry on paraffin-embedded sections of 46 STS patients, quantified using a colour video imaging system and correlated to histological grade. The monoclonal antibodies used were anti-nm23 (recognising both nm23-H1 and nm23-H2) and anti-nm23-H1 (recognising nm23-H1 only). RESULTS: High-grade tumours significantly overexpressed nm23 (including both nm23-H1 and nm23-H2) compared with both intermediate and low-grade tumours (ANOVA and Tukey, all p < 0.05). Multiple regression analysis confirmed the significance of the relationship and independence of the nm23 (p = 0.005), but not nm23-H1. CONCLUSION: Expression of nm23 protein, particularly nm23-H2, is an independent predictor of malignant potential of adult STS.     

肿瘤转移相关基因与周围型肺癌CT征象的关系研究

摘要目的：探讨VEGF和nm23-H1基因表达水平与周围型肺癌的病理生理学特征和CT征象之间的关系。方法：回顾性分析确诊的47例周围型肺癌患者CT表现．同时采用免疫组化方法(LSAB法)检测47例肺癌组织中的VEGF和nm23-H1表达水平。结果：1)VEGF、nm23-H1表达水平与原发肿瘤大小、淋巴结转移状态，pTNM分期均有密切关系(P＜0．05)。2)VEGF与nm23-H1表达水平呈负相关(P＜0.05)。3)VEGF基因的高表达和nm23-H1基因的低表达均与分叶征、纵隔淋巴结转移有关(P＜0．05)，且VEGF的高表达也与空洞征有关：二者表达水平与毛刺征、空泡征、胸膜凹陷征和支气管征均无关(P＞0．05)。4)深分叶征、空泡征和支气管征与肿瘤大小有关(P＜0．05)，而与毛刺征、胸膜凹陷征和纵隔淋巴结转移均无关(P＞0.05)。结论：VEGF过度表达和nm23-H1低表达均与周围型肺癌的分叶征、空洞坏死征和纵隔淋巴结转移有密切关系。     

Prognostic significance of nm23-H1 expression in oral squamous cell carcinoma

Recent studies indicated nm23-H1 played a role in cancer progression. Therefore, we investigated clinical significance of nm23-H1 expression in oral squamous cell carcinoma (OSCC). In total, 86 OSCC specimens were immunohistochemically stained with nm23-H1-specific monoclonal antibodies. Immunohistochemical staining of nm23-H1 was confirmed by immunoblotting. The relations between nm23-H1 expression and clinicopathologic variables were evaluated by chi(2) analysis. As increased size of primary tumour could escalate metastatic potential and the data of patients at the late T stage might confound statistical analyses, we thus paid special attention to 54 patients at the early T stage of OSCC. Statistical difference of survival was compared by a log-rank test. Immunohistochemically, nm23-H1 expression was detected in 48.8% (42 out of 86) of tumorous specimens. It positively correlated with larger primary tumour size (P=0.03) and inversely with cigarette-smoking habit (P=0.042). In patients at the early T stage, decreased nm23 expression was associated with increased incidence of lymph node metastasis (P=0.004) and indicated poor survival (P=0.014). Tumour nm23-H1 expression is a prognostic factor for predicting better survival in OSCC patients at the early T stage, which may reflect antimetastatic potential of nm23. Therefore, modulation of nm23-H1 expression in cancer cells can provide a novel possibility of improving therapeutic strategy at this stage. In addition, our results further indicated cigarette smoking could aggravate the extent of nm23-H1 expression and possibly disease progression of OSCC patients.     

nm23-H1和MUC-1在外周T细胞淋巴瘤中的表达及其临床意义

背景与目的:外周T细胞淋巴瘤(peripheralT-celllymphoma,PTCL)是一类异质性疾病,临床侵袭性较强,常规治疗效果欠佳。国际预后指数(internationalprognosticindex,IPI)在PTCL中的价值尚未确定,有必要寻找一些分子指标来协助预测PTCL的预后。本研究旨在探讨nm23-H1和MUC-1对PTCL预后判断的价值。方法:免疫组化SP法检测中山大学肿瘤防治中心1997年1月至2004年12月间收治的96例初治PTCL患者组织中nm23-H1和MUC-1的表达情况,分析其表达与患者临床特征、近期疗效及远期生存率的关系。结果:96例患者nm23-H1和MUC-1的阳性率分别为81.2%(78/96)和58.3%(56/96);两者表达强度均与病理亚型无明显相关(P>0.05)。nm23-H1高表达与Ⅲ/Ⅳ期、PS状态≥2分、结外侵犯和结外病变数≥2等有关(P﹤0.05);而MUC-1高表达仅与分期Ⅲ/Ⅳ期、结外病变数≥2有关(P<0.05)。89例患者可评价化疗的客观疗效,全组有效率87.8%,完全缓解(CR)率56.7%。nm23-H1阴性者CR率高于阳性者(66.7%vs.55.4%,P<0.05),低表达组CR率高于高表达组(79.9%vs.44.0%,P<0.05);MUC-1阴性和低表达组的CR率分别高于阳性和高表达组,但均无显著性差异(P>0.05)。全组中位随访时间30个月(2～98个月),中位生存期32个月(95%CI26～34个月);nm23-H1阴性组5年生存率(overallsurvival,OS)明显高于阳性组(86.7%vs.24.9%,P=0.001),低表达组5年OS明显高于高表达组(52.3%vs.21.7%,P=0.000);MUC-1阴性组5年OS稍高于阳性组(47.9%vs.28.5%,P=0.260),低表达组5年OS稍高于高表达组(46.2%vs.22.2%,P=0.337)。多因素分析结果显示,IPI评分和nm23-H1表达水平是PTCL独立的预后指标。结论:nm23-H1在PTCL中过度表达提示预后不良,可作为判断PTCL预后的独立指标;MUC-1在PTCL中阳性及高表达与预后不良具一定的相关性,但对预后判断的价值尚不能确定。nm23-H1结合IPI评分等临床指标可能有助于更精确判断PTCL的预后。     

nm23-H1基因在喉癌中杂合性丢失和微卫星序列不稳定性分析及表达的研究

目的　探讨nm2 3 H1基因在喉鳞状细胞癌中杂合性丢失 (LOH)及表达情况。方法　选择nm2 3 H1基因内部及附近 5个微卫星多态标记 ,对 72例喉癌标本进行杂合性丢失和微卫星序列不稳定性检测 ,同时以RT PCR方法分析 38例配对喉鳞状细胞癌标本中nm2 3 H1基因表达情况。结果　LOH涉及至少 1个位点的频率高达 76 .39% ,5个位点均有LOH ,以D17S16 6 5处频率最高 ,达 38.10 %。 3个位点出现MI ,最高为 12 .70 %。nm2 3 H1基因杂合性丢失及微卫星不稳定与淋巴结转移、临床分期和肿瘤分化无显著相关性 (P >0 .0 5 ) ,但D17S16 6 5位点高LOH频率与低分化相关 (P <0 .0 5 )。癌、癌旁及转移淋巴结中nm2 3 H1表达不同 ,但差异无统计学意义 ,表达水平与淋巴结转移无关 (P >0 .0 5 )。结论　nm2 3 H1基因可能在喉鳞癌发生中起作用 ,杂合性丢失可能是影响基因功能的主要机制。     

乳腺癌组织p16与nm23-H1的表达及临床病理相关性研究

目的 :探讨乳腺癌组织p16与nm2 3 H1的表达及其与临床病理特征和预后的相关性。方法 :免疫组化SP法检测 12 0例乳腺癌组织P16与nm2 3 H1的表达 ,并结合临床病理特征及预后进行分析。结果 :乳腺癌组织p16阳性率 5 5 0 0 % ,p16阳性表达与腋淋巴结转移负相关 ,P <0 0 5 ,与 5年生存率正相关 ,P <0 0 5 ;nm2 3 H1阳性率 4 2 5 0 % ,nm2 3 H1阳性表达与腋淋巴结转移负相关 ,P <0 0 5 ,与 5年生存率正相关 ,P <0 0 5。p16与nm2 3 H1表达无相关性 ,p16 (- ) nm2 3 H1(- )淋巴结转移率高于p16 (+) nm2 3 H1(+) ,5年生存率低于p16 (+) nm2 3 H1(+) ,统计学检验差异具有显著意义 ,P <0 0 0 1;P <0 0 1。结论 :p16与nm2 3 H1阳性表达与乳腺癌的预后有关 ,其联合表达可更好地判断乳腺癌的转移和预后     

MTA1和nm23-H1蛋白表达与乳腺癌生物学行为之间的关系

目的探讨肿瘤转移相关基因（NTA1）和nm23-H1蛋白表达与乳腺癌生物学行为之间的关系。方法运用免疫组化S-P法检测56例乳腺癌组织中NTAl、nm23-H1蛋白的表达。结果56例乳腺癌组织中39例NTA1蛋白阳性表达,阳性率为69．6％,NTA1高表达与乳腺癌组织学分级、临床分期和淋巴结转移关系密切（P〈0．05）;3l例nm23-H1蛋白阳性表达,阳性率为55．4％,nm23-H1低表达与乳腺癌组织学分级、临床分期和淋巴结转移关系密切（P〈0．05）;乳腺癌组织中NTA1、nm23-H1蛋白表达呈负相关（P〈0．05）。结论NTA1和nm23-H1蛋白表达与乳腺癌分化程度、淋巴结转移和预后关系密切,可作为诊断乳腺癌患者转移复发的参考指标,并有望成为乳腺癌基因治疗的新靶点。     

卵巢肿瘤中癌基因 nm23Hl,c-erbB-2,ras 和 p53 的蛋白表达与腹膜后淋巴结转移关系的研究

目的本研究旨在结合腹膜后淋巴结切除术，探讨癌蛋白ｎｍ２３Ｈ１，ｐ１８５，ｐ２１，ｐ５３在卵巢癌中的表达与卵巢癌腹膜后淋巴转移（ＬＮＭ）的关系。方法采用免疫组化方法测定石腊包埋标本中ｎｍ２３Ｈ１，ｐ１８５，ｐ２１和ｐ５３的表达，单因素、多因素分析它们的表达与淋巴结转移关系。结果在３１例（３１．６％）患者中ｎｍ２３Ｈ１蛋白表达阳性；ｐ２１的表达与组织分化程度及残留癌相关。病理证实４９例（５５．１％）有淋巴结转移；ｎｍ２３Ｈ１蛋白表达阳性的ＬＮＭ率低（３５．７％ｖｓ６３．９％，Ｐ＝０．０１２）；ｐ２１表达与ＬＮＭ正相关（Ｐ＜０．００１）；ｐ１８５（～）病例ＬＮＭ率（６４．４％）高于ｐ１８５（＋）或ｐ１８５（－）的转移率（４５．９％），但差异无统计学意义；ｐ５３表达与ＬＮＭ无关。与ＬＮＭ相关的临床因素是伴有腹水、组织分化不良、残留灶和分期晚。经Ｌｏｇｉｓｔｉｃ回归多因素分析，影响淋巴结转移的独立危险因素是ｎｍ２３Ｈ１蛋白阴性表达，ｐ２１的阳性表达、有残留灶和分化差。结论在卵巢恶性肿瘤中，ｎｍ２３Ｈ１蛋白和ｐ２１的表达对腹膜后淋巴结转移有独立的联合作用，而ｐ１８５和ｐ５３的表达则无关。