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- Ahlberg, K., Almgren, E., Wright, H.E., Ito, E.
(författare)
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Holocene stable-isotope stratigraphy at Lough Gur, County Limerick, Western Ireland
- 2001
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Ingår i: The Holocene. - : Arnold. ; 11:3, s. 375-380
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Tidskriftsartikel (refereegranskat)
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- Ito, Y, et al.
(författare)
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Activation of c-Src is inversely correlated with biological aggressiveness of breast carcinoma
- 2002
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Ingår i: Breast Cancer Research and Treatment. - 1573-7217. ; 76:3, s. 261-267
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Tidskriftsartikel (refereegranskat)abstract
- In order to investigate whether c-Src is involved in carcinogenesis and progression of breast carcinoma, we examined the expression of activated c-Src in tissue sections from surgically resected human breast specimens. First, we confirmed the specificity of the antibody against activated c-Src (Clone 28) using six cell lines established from human breast carcinomas by western blotting. As expected, activated c-Src was detected as a 60 kDa band in all cell lines tested. Immunofluorescence analysis demonstrated that the activated c-Src was mainly observed in cytoplasms of these cells. Then, we designed an immunohistochemical study with 73 human breast carcinoma tissues. Glandular epithelial and myoepithelial cells in normal mammary glands adjacent to carcinoma nests and infiltrating stromal cells were negative for activated c-Src. In contrast, 37 of the 73 breast carcinoma tested (50.7%) were positive for activated c-Src, and this positive staining was inversely correlated with Ki-67 labeling index (p <0.0001), TNM stage (p <0.0001), tumor size (p < 0.0001), and histological grade (p = 0.0002). These results strongly suggest that the activation of c-Src would be related to the progression of breast carcinomas with low aggressiveness.
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- Mineta, H, et al.
(författare)
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Low expression of fragile histidine triad gene correlates with high proliferation in head and neck squamous cell carcinoma
- 2003
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Ingår i: Oral Oncology. - 1879-0593. ; 39:1, s. 56-63
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Tidskriftsartikel (refereegranskat)abstract
- Frequent loss of heterozygosity in head and neck squamous cell carcinoma (HNSCC) has been found in several chromosomal regions such as 3p, 9p, 11q, 13q and 17p. Fragile histidine triad (FHIT) gene is located at 3p14.2 encompassing a common fragile site, and is identified as a tumor suppressor gene. We examined 57 patients with HNSCC using immunohistochemistry, western blot, and reverse transcriptase polymerase chain reaction. The association between FHIT expression and clinicopathologic characteristics including p53 and Ki-67 expressions was analyzed. Immunohistochemical analysis revealed 30 patients (53%) of low FHIT expression and 27 patients (47%) of high FHIT expression. Low FHIT expression significantly correlated with high Ki-67 expression, indicating that tumor cells with low FHIT expression can proliferate aggressively. No correlation was found between FHIT expression and clinical characteristics including age, gender, tumor size, lymph node status, stage grouping, histologic grade, p53 expression, and prognosis. FHIT alteration may play an important role in cancer development of HNSCC, however it did not contribute to the prognosis. (C) 2002 Elsevier Science Ltd. All rights reserved.
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