Objective: To investigate the role of nm23 geneexpression in human lung cancer. Methods: Forty humanlung cancer tissues and 19 non-cancer pulmonary tissueswere studied for their nm23-H1 and nm23-H2 mRNAexpnaion with n...Objective: To investigate the role of nm23 geneexpression in human lung cancer. Methods: Forty humanlung cancer tissues and 19 non-cancer pulmonary tissueswere studied for their nm23-H1 and nm23-H2 mRNAexpnaion with noo-radioactive Northern blot hybridi-zation. The correlation of nm23 mRNA expression withclinical featllres of lung cancer was analyzed. Results: ThemRNA expression of nm23-H2 gene in poorly differentiatedsquamous cell carcinoma was significantly decreasedcompared to that in moderate-high differentiated squamouscell carcinoma. The mRNA expression of nm23-H1 andnm23-H2 gene in small cell lung cancer was sigulficantlydecreased compared to that in squamous cell carcinoma. Nosipecant difference in nm23 mRNA expression wasobserved between lung cancer with and without lymph nodemethetheis, nor was there significant difference betweentumor stuge. Conclusion: The mRNA expression of nm23gene is correlated with the degree of differentiation of lungcancer, but there is no evidence of metastheis suppressioneffect by nm23 gene.展开更多
Objective: To investigate the expression of nm23 gene and evaluate its prognostic value in breast cancer. Methods: nm23 expressions were detected in 101 breast cancer patients (group 1) by immunohistochemistry. RT-PCR...Objective: To investigate the expression of nm23 gene and evaluate its prognostic value in breast cancer. Methods: nm23 expressions were detected in 101 breast cancer patients (group 1) by immunohistochemistry. RT-PCR and immunohistochemistry were used to measure expressions of nm23 gene in another 68 patients with breast cancer (group 2). Results: nm23 gene expression in group 1 was inversely associated with distant metastasis and lymph node metastasis (P<0.05). In 44 patients with negative lymph node, 9 cases progressed to distant metastasis, 7 of them (77.8%) showed low expression of nm23 gene (P<0.05). In 57 patients with positive lymph node, 24 our of 29 patients who had no distant metastasis (82.8%) expressed nm23 gene at high level (P<0.05). Meanwhile, there were 6 patients with distant metastasis in the group 2, all of thenm expressed nm23 gene mRNA at low level. Conclusion: The results showed that nm23 gene might play an independent role in predicting prognosis of breast cancer.展开更多
CT observations and the cellular factors of molecular biology each enable one to recognize macro/micro changes in lung cancer. Growing pattern, characteristic shapes, degree of malignancy, relapse and metastasis of lu...CT observations and the cellular factors of molecular biology each enable one to recognize macro/micro changes in lung cancer. Growing pattern, characteristic shapes, degree of malignancy, relapse and metastasis of lung cancer are mainly determined by their molecular biology. Change of tumour shape, determined by the tumour's biological behaviour, is the basis of CT observations. That is, the pathological change acts as a bridge which links the CT observation to molecular biology and makes the investigation of internal relationship between CT sign and molecular biology behaviour possible. As a tumour suppressor gene, nm23 gene is located in chromosome 17q21.3, encoding a nucleoside diphosphate kinase.1,2 We studied the expression of nm23 in peripheral nonsmall cell lung cancer (NSCLC) using the streptavidin peroxidase (SP) immunohistochemical method and investigated retrospectively the relationship between nm23 gene, CT observation, biological behaviour and prognosis of NSCLC.展开更多
Backgroud and Objective Lung cancer has become the most frenquent malignant tumor in the world which its mortality and morbidity is increasing fastest among all the cancers。
Backgroud and Objective Tumor metastasis is not only the malignant marker and characteristics of lung cancer, but also the main cause of failure to cure and lose their life of the
WE have studied the expression of nm23(NDP)in 50cases nasopharyngeal biopsies with anti-nm23(NDP)antibodies. As a result, the NDP positive rate innasopharyngeal carcinoma(NPC)(95.54%) markedlyincreased (P【0.05), as c...WE have studied the expression of nm23(NDP)in 50cases nasopharyngeal biopsies with anti-nm23(NDP)antibodies. As a result, the NDP positive rate innasopharyngeal carcinoma(NPC)(95.54%) markedlyincreased (P【0.05), as compared with that in the normalnasopharyngeal epithelia (50.00-60.00%) and lympho-cytes (52.00%). There were cytoplasmic type, nucleustype and mixed cytoplasmonucleus type according to NDP,location in a cell Their positive rates were 64.44%,15.56%, and 20.00%, respectively in nasopharyngealcarcinoma. The expression of NDP had no relation withcervical lymphometastases in NPC, and the NDP positiverates had no significance between bilateral cervicallymphometastases and unilateral(P【0.05). But the NDPexpression had most relation with the NPC staging. Theexpression rate and the intensity in Ⅲ or Ⅳ stagepatients were markedly higher than that in Ⅱ stage. Itpoints out that the high-level expression of NDP hadrelation with the rapid cellular proliferation in NPC, andit may indicate the bad展开更多
Background and Objective Lung cancer is the leading cause of cancer death in both men and women. Tumor metastasis is an essential aspect of lung cancer progression. Nm23-H1 is
Background and objective Lung Cancer is one of the most malignant cancers threatening people’s health and life and one of the most rapid increasing cancers both in morbidity
Background and Objective Cancer metastasis is not only the malignant characteristics of lung cancer, but also the key cause of failure to cure and high mortality. It has been proved
Background and objective Invasion and metastasis is not only the malignant phenotypes of lung cancer but also the main cause of death. Elucidating the molecular mechanism of
Background and Objective Lung cancer is not only the most dangerous threating tumor to human’s health and life, but also a malignant tumor with poor prognosis. In the past 10 years,
Background and Objective Invasion and metastasis is not only the malignant phenotypes of lung cancer but also the main cause of death. To study and elucidate the molecular mechanism
Objective:To study the expression of the human novel gene NM23-H1B in ovarian cancer. Methods: Totally 24 samples from patients with epithelial ovarian tumor at different clinical stages and 4 from normal ovaries were...Objective:To study the expression of the human novel gene NM23-H1B in ovarian cancer. Methods: Totally 24 samples from patients with epithelial ovarian tumor at different clinical stages and 4 from normal ovaries were examined for NM23-H1B mRNA expression by RT-PCR and Northern blot. Results: All samples expressed NM23-H1B mRNA through RT-PCR, while the level of expression in ovarian tumor was higher than that of normal ovary. The results of Northern blot showed that NM23-H1B was overexpressed in ovarian cancer while lowexpressed in normal ovary or low malignant potential (LMP). The level of expression at early stage cancer(stageⅠand Ⅱ) was higher than those in advanced cancer(stage Ⅲ and Ⅳ). In early stage carcinoma, the expression level was involved in the differentiation of tumor cell, and well-differentiated cancer expressed NM23-H1B mRNA in comparatively higher level. Conclusion: The novel gene NM23-N1B is closely correlated with the ovarian cancer.展开更多
文摘Objective: To investigate the role of nm23 geneexpression in human lung cancer. Methods: Forty humanlung cancer tissues and 19 non-cancer pulmonary tissueswere studied for their nm23-H1 and nm23-H2 mRNAexpnaion with noo-radioactive Northern blot hybridi-zation. The correlation of nm23 mRNA expression withclinical featllres of lung cancer was analyzed. Results: ThemRNA expression of nm23-H2 gene in poorly differentiatedsquamous cell carcinoma was significantly decreasedcompared to that in moderate-high differentiated squamouscell carcinoma. The mRNA expression of nm23-H1 andnm23-H2 gene in small cell lung cancer was sigulficantlydecreased compared to that in squamous cell carcinoma. Nosipecant difference in nm23 mRNA expression wasobserved between lung cancer with and without lymph nodemethetheis, nor was there significant difference betweentumor stuge. Conclusion: The mRNA expression of nm23gene is correlated with the degree of differentiation of lungcancer, but there is no evidence of metastheis suppressioneffect by nm23 gene.
基金This work was supported by the National 9th Five-Year Program of China(No. 96-906-01-13).
文摘Objective: To investigate the expression of nm23 gene and evaluate its prognostic value in breast cancer. Methods: nm23 expressions were detected in 101 breast cancer patients (group 1) by immunohistochemistry. RT-PCR and immunohistochemistry were used to measure expressions of nm23 gene in another 68 patients with breast cancer (group 2). Results: nm23 gene expression in group 1 was inversely associated with distant metastasis and lymph node metastasis (P<0.05). In 44 patients with negative lymph node, 9 cases progressed to distant metastasis, 7 of them (77.8%) showed low expression of nm23 gene (P<0.05). In 57 patients with positive lymph node, 24 our of 29 patients who had no distant metastasis (82.8%) expressed nm23 gene at high level (P<0.05). Meanwhile, there were 6 patients with distant metastasis in the group 2, all of thenm expressed nm23 gene mRNA at low level. Conclusion: The results showed that nm23 gene might play an independent role in predicting prognosis of breast cancer.
文摘CT observations and the cellular factors of molecular biology each enable one to recognize macro/micro changes in lung cancer. Growing pattern, characteristic shapes, degree of malignancy, relapse and metastasis of lung cancer are mainly determined by their molecular biology. Change of tumour shape, determined by the tumour's biological behaviour, is the basis of CT observations. That is, the pathological change acts as a bridge which links the CT observation to molecular biology and makes the investigation of internal relationship between CT sign and molecular biology behaviour possible. As a tumour suppressor gene, nm23 gene is located in chromosome 17q21.3, encoding a nucleoside diphosphate kinase.1,2 We studied the expression of nm23 in peripheral nonsmall cell lung cancer (NSCLC) using the streptavidin peroxidase (SP) immunohistochemical method and investigated retrospectively the relationship between nm23 gene, CT observation, biological behaviour and prognosis of NSCLC.
基金supported by the grant from the Key Project of National Natural Science Foundation of China (to Qinghua ZHOU)(No.30430300)grants from the National Natural Science Foundation of China.(to Qinghua ZHOU and Lunxu LIU )(No.30070333 and No 30100075)
文摘Backgroud and Objective Lung cancer has become the most frenquent malignant tumor in the world which its mortality and morbidity is increasing fastest among all the cancers。
基金supported by grants from National Natural Sciences Foundation of China (to Qinghua ZHOU, No.3007033 )
文摘Backgroud and Objective Tumor metastasis is not only the malignant marker and characteristics of lung cancer, but also the main cause of failure to cure and lose their life of the
文摘WE have studied the expression of nm23(NDP)in 50cases nasopharyngeal biopsies with anti-nm23(NDP)antibodies. As a result, the NDP positive rate innasopharyngeal carcinoma(NPC)(95.54%) markedlyincreased (P【0.05), as compared with that in the normalnasopharyngeal epithelia (50.00-60.00%) and lympho-cytes (52.00%). There were cytoplasmic type, nucleustype and mixed cytoplasmonucleus type according to NDP,location in a cell Their positive rates were 64.44%,15.56%, and 20.00%, respectively in nasopharyngealcarcinoma. The expression of NDP had no relation withcervical lymphometastases in NPC, and the NDP positiverates had no significance between bilateral cervicallymphometastases and unilateral(P【0.05). But the NDPexpression had most relation with the NPC staging. Theexpression rate and the intensity in Ⅲ or Ⅳ stagepatients were markedly higher than that in Ⅱ stage. Itpoints out that the high-level expression of NDP hadrelation with the rapid cellular proliferation in NPC, andit may indicate the bad
基金supported by the grants from the Key Project of National Natural Science Foundation of China (No .30430300 , to Qinghua ZHOU)Key Projects of Tian-jin Sci-Tech Support Program (No . 07SY SY SF05000 and No 06YFSZSF05300, to Qinghua ZHOU)
文摘Objective and Methods The key cause of failure to cure and high mortality in lung cancer. At present, it has been known
基金supported by the following grants to Qinghua ZHOU:The Key Project of National Natural Science Foundation of China (304303 00)The Major Project of Tianjin Sci-Tech Support Programme (07SYSYS F05000)+3 种基金The Key Project of Tianjin Sci-Tech Support Programme (06YFS ZSF05300)The Building Project of Tianjin Sci-Tech Innovation Platform (07SYSYJC27900)863 National Major Projects (2006AA02A401)National Key Basic Research and Development Plan (973 Plan) program (20 07CBS914800)
文摘Background and Objective Lung cancer is the leading cause of cancer death in both men and women. Tumor metastasis is an essential aspect of lung cancer progression. Nm23-H1 is
基金supported by a grant from the key project of the National Natural Science Foundation of China (to Qinghua ZHOU) (No. 30430300)
文摘Background and objective Lung Cancer is one of the most malignant cancers threatening people’s health and life and one of the most rapid increasing cancers both in morbidity
基金supported by the grants from the National Natural Science Foundation of ChinaScience Foundation of Sichuan University (No. 30070333 and No.200349)
文摘Background and Objective Cancer metastasis is not only the malignant characteristics of lung cancer, but also the key cause of failure to cure and high mortality. It has been proved
基金supported by grants from the Key Project of National Natural Science Foundation of China (to Qinghua ZHOU) (No.30430300)National Natural Science Foundation of China (to Qinghua ZHOU) (No.30070333)
文摘Background and objective Invasion and metastasis is not only the malignant phenotypes of lung cancer but also the main cause of death. Elucidating the molecular mechanism of
基金supported by a grant from the key project of the National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30430300)National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30670922)INTERNATION Scienc and Techniquie COOPRATION PROGRAM OF CHINA (ISCP) (to Qinghua ZHOU)(No.2006DFB32330)
文摘Background and Objective Lung cancer is not only the most dangerous threating tumor to human’s health and life, but also a malignant tumor with poor prognosis. In the past 10 years,
基金supported by a grant from the key project of the National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30430300)National Natural Science Foundation of China (to Qinghua ZHOU)(No. 30670922)INTERNATION Scienc and Techniquie COOPRATION PROGRAM OF CHINA (ISCP) (to Qinghua ZHOU)(No.2006DFB32330)
文摘Background and Objective Invasion and metastasis is not only the malignant phenotypes of lung cancer but also the main cause of death. To study and elucidate the molecular mechanism
文摘Objective:To study the expression of the human novel gene NM23-H1B in ovarian cancer. Methods: Totally 24 samples from patients with epithelial ovarian tumor at different clinical stages and 4 from normal ovaries were examined for NM23-H1B mRNA expression by RT-PCR and Northern blot. Results: All samples expressed NM23-H1B mRNA through RT-PCR, while the level of expression in ovarian tumor was higher than that of normal ovary. The results of Northern blot showed that NM23-H1B was overexpressed in ovarian cancer while lowexpressed in normal ovary or low malignant potential (LMP). The level of expression at early stage cancer(stageⅠand Ⅱ) was higher than those in advanced cancer(stage Ⅲ and Ⅳ). In early stage carcinoma, the expression level was involved in the differentiation of tumor cell, and well-differentiated cancer expressed NM23-H1B mRNA in comparatively higher level. Conclusion: The novel gene NM23-N1B is closely correlated with the ovarian cancer.
