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Guan C, Zhang J, Zhang J, Shi H, Ni R. Enhanced expression of early mitotic inhibitor-1 predicts a poor prognosis in esophageal squamous cell carcinoma patients. Oncol Lett 2016; 12:114-120. [PMID: 27347110 PMCID: PMC4906579 DOI: 10.3892/ol.2016.4611] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 04/08/2016] [Indexed: 01/15/2023] Open
Abstract
Early mitotic inhibitor-1 (Emi1), as a key cell cycle regulatory gene, induces S phase and mitotic entry by controlling anaphase-promoting complex substrates. Emi1 overexpression may be a prognostic factor for patients with invasive breast cancer. However, its expression and clinical significance in esophageal squamous cell carcinoma (ESCC) remain unknown. In the present study, Emi1 was overexpressed in ESCC samples, contrarily to their neighboring normal tissues. The expression of Emi1 was correlated with histological differentiation (P=0.032), lymphatic metastasis (P=0.006) and Ki-67 expression (P=0.028). Multivariate analysis indicated that the presence of lymphatic metastasis and the protein expression levels of Emi1 and Ki-67 were all independent prognostic factors for ESCC patients (P=0.042, 0.018 and 0.001, respectively). In vitro, however, the expression of Emi1 was upregulated in the ECA109 cell line following release from serum starvation. In addition, depletion of endogenous Emi1 by small interfering RNA could effectively reduce cell proliferation. Thus, the present data indicated that Emi1 expression was upregulated in ESCC tissues and correlated with poor survival in ESCC patients, and suggested that Emi1 may be an independent prognostic factor for ESCC patients.
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Affiliation(s)
- Chengqi Guan
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Jianfeng Zhang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Jianguo Zhang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Hui Shi
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Runzhou Ni
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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Felin IPD, Grivicich I, Felin CR, Regner A, Rocha ABD. Expressão de p53, p16 E COX-2 em carcinoma escamoso de esôfago e associação histopatológica. ARQUIVOS DE GASTROENTEROLOGIA 2008; 45:308-12. [DOI: 10.1590/s0004-28032008000400009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Accepted: 03/26/2008] [Indexed: 11/22/2022]
Abstract
RACIONAL: O câncer de esôfago representa cerca de 2% dos tumores malignos e a terceira causa mais comum de câncer do trato gastrointestinal. A associação do prognóstico do câncer de esôfago com alguns marcadores imunoistoquímicos, como as proteínas p53, p16 e a ciclooxigenase 2 (COX-2) tem sido relatada. A detecção de marcadores moleculares através de imunoistoquímica pode ser utilizada para avaliação prognóstica. OBJETIVOS: Investigar a associação entre a expressão das proteínas p53, p16 e a COX-2 com o estádio do carcinoma escamoso de esôfago. MÉTODOS: Foram analisadas 31 amostras de ressecção cirúrgica por esofagectomia diagnosticadas como carcinoma de células escamosas de esôfago e 31 amostras não-tumorais referentes a cada caso. Realizou-se a revisão histopatológica e o estádio pTNM. Amostras tumorais e não-tumorais adjacentes foram submetidas a análise imunoistoquímica para avaliar o conteúdo das proteínas p53, p16 e COX-2. Foi considerada positiva a expressão nuclear para p53 em quantidade igual ou superior a 10,00% das células e presença da expressão citoplasmática de acordo com três escores (1, 2, 3) de intensidade (leve, moderada, acentuada) de imunocoloração para COX-2. RESULTADOS: Em área tumoral, as análises revelaram 48,38% de positividade para p53, 16,12% de positividade para p16, e 100,00% de positividade escores 1+, 2+ ou 3+ para COX-2. No entanto, quando se avaliou possível relação da expressão destes marcadores com o estádio, apenas a COX-2, escore 3+ intensidade acentuada mostraram associação significativa. CONCLUSÃO: O presente estudo demonstrou que existe relação positiva entre a expressão de COX-2, escore 3+ e estádio mais avançado no carcinoma de esôfago.
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Affiliation(s)
| | - Ivana Grivicich
- Universidade Luterana do Brasil; Universidade Luterana do Brasil; Universidade Luterana do Brasil
| | - Carlos Roberto Felin
- Universidade Luterana do Brasil; Hospital da Brigada Militar de Santa Maria; Universidade Federal de Santa Maria
| | - Andrea Regner
- Universidade Luterana do Brasil; Universidade Luterana do Brasil; Universidade Luterana do Brasil
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Lyronis ID, Baritaki S, Bizakis I, Krambovitis E, Spandidos DA. K-ras Mutation, HPV Infection and Smoking or Alcohol Abuse Positively Correlate with Esophageal Squamous Carcinoma. Pathol Oncol Res 2008; 14:267-73. [DOI: 10.1007/s12253-008-9032-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Accepted: 03/17/2008] [Indexed: 01/03/2023]
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Naidoo R, Ramburan A, Reddi A, Chetty R. Aberrations in the mismatch repair genes and the clinical impact on oesophageal squamous carcinomas from a high incidence area in South Africa. J Clin Pathol 2005. [PMID: 15735161 DOI: 10.1136/jcp.2003.014290.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To investigate the incidence of genetic aberrations in the DNA repair genes in a cohort of oesophageal cancers. METHODS One hundred oesophagectomy samples of squamous cell carcinoma were studied. Normal and tumour DNA were isolated using a standard phenol/chloroform extraction procedure. Six recommended microsatellite loci with high informativity were analysed. The following markers were used: D2S123 (2p), D3S659 (3p), D3S1255 (3p), Bat 25 (4q), Bat 26 (2p), and Bat 40 (1p). The results were analysed using software attached to an automated DNA sequencer. The molecular data were then correlated with clinicopathological parameters. RESULTS The incidence of microsatellite instability and loss of heterozygosity was very low. There was no significant correlation between the clinicopathological and molecular data. However, D2S123 genetic abnormalities were seen more frequently in both moderately and well differentiated tumours than in poorly differentiated tumours (p = 0.033). Follow up data were available for only 67 of the 100 patients. Fifty patients were alive and 17 patients had died. CONCLUSION Low frequencies of genetic aberrations in these mismatch repair loci are found in squamous carcinomas of the oesophagus from a high incidence area in South Africa.
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Affiliation(s)
- R Naidoo
- Pfizer Molecular Biology Research Facility, Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, Faculty of Health Science, University of KwaZulu Natal, Private Bag 7, Congella 4013, Durban, South Africa.
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Naidoo R, Ramburan A, Reddi A, Chetty R. Aberrations in the mismatch repair genes and the clinical impact on oesophageal squamous carcinomas from a high incidence area in South Africa. J Clin Pathol 2005; 58:281-4. [PMID: 15735161 PMCID: PMC1770598 DOI: 10.1136/jcp.2003.014290] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2004] [Indexed: 02/06/2023]
Abstract
AIMS To investigate the incidence of genetic aberrations in the DNA repair genes in a cohort of oesophageal cancers. METHODS One hundred oesophagectomy samples of squamous cell carcinoma were studied. Normal and tumour DNA were isolated using a standard phenol/chloroform extraction procedure. Six recommended microsatellite loci with high informativity were analysed. The following markers were used: D2S123 (2p), D3S659 (3p), D3S1255 (3p), Bat 25 (4q), Bat 26 (2p), and Bat 40 (1p). The results were analysed using software attached to an automated DNA sequencer. The molecular data were then correlated with clinicopathological parameters. RESULTS The incidence of microsatellite instability and loss of heterozygosity was very low. There was no significant correlation between the clinicopathological and molecular data. However, D2S123 genetic abnormalities were seen more frequently in both moderately and well differentiated tumours than in poorly differentiated tumours (p = 0.033). Follow up data were available for only 67 of the 100 patients. Fifty patients were alive and 17 patients had died. CONCLUSION Low frequencies of genetic aberrations in these mismatch repair loci are found in squamous carcinomas of the oesophagus from a high incidence area in South Africa.
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Affiliation(s)
- R Naidoo
- Pfizer Molecular Biology Research Facility, Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, Faculty of Health Science, University of KwaZulu Natal, Private Bag 7, Congella 4013, Durban, South Africa.
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Ishikawa M, Kitayama J, Kohno K, Nagawa H. The expression pattern of UDP-N-acetyl-alpha-D-galactosamine-polypeptide N-acetyl-galactosaminyl transferase-3 in squamous cell carcinoma of the esophagus. Pathobiology 2005; 72:139-45. [PMID: 15860931 DOI: 10.1159/000084117] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2004] [Accepted: 08/26/2004] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE UDP-N-acetyl-alpha-D-galactosamine-polypeptide N-acetylgalactosaminyl transferase-3 (GalNAc-T3) regulates the initial glycosylation of mucin-type O-linked proteins. Although a different expression of GalNAc-T3 has been reported in various cancers, the expression has not been characterized in squamous cell carcinoma (SCC) of the esophagus. METHODS We have also evaluated the expression of this enzyme in surgically resected esophageal mucosa. By immunohistochemical staining using a specific antibody, we evaluated the expression of GalNAc-T3 in 66 esophageal SCC and 28 dysplasia samples, and analyzed the relationship between the expression of GalNAc-T3 and clinicopathological features. RESULTS GalNAc-T3 was positively detected in the majority of the cases of SCC, but not in dysplasia as well as the normal counterparts in resected esophagus. GalNAc-T3 was determined to be positive in 37 cases (68.5%) of differentiated carcinomas, but only in 4 cases (33.3%) of undifferentiated carcinomas (p < 0.05). Hematogeneous metastasis was observed in 13 of 41 (31.7%) GalNAc-T3-positive tumors, which was significantly more frequent than in negative tumors (2/25, 8%; p < 0.05). The number of metastatic nodes was significantly higher in tumors with GalNAc-T3-positive than GalNAc-negative expression (4.2 +/- 3.2 vs. 2.8 +/- 1.3, p < 0.05). The survival rate tended to be lower for patients with GalNAc-T3-positive tumors, although the difference was not statistically significant (p = 0.18). CONCLUSION GalNAc-T3 may play a positive role in the process of carcinogenesis and progression in esophageal SCC. Functional inhibition of GalNAc-T3 may be effective for the prevention and treatment of esophageal SCC.
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Affiliation(s)
- Makoto Ishikawa
- Department of Surgery, Division of Surgical Oncology, University of Tokyo, Tokyo, Japan.
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de Borja PF, Collins N, Du P, Azizkhan-Clifford J, Mudryj M. Cyclin A-CDK phosphorylates Sp1 and enhances Sp1-mediated transcription. EMBO J 2001; 20:5737-47. [PMID: 11598016 PMCID: PMC125670 DOI: 10.1093/emboj/20.20.5737] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Cyclin A-mediated activation of cyclin-dependent kinases (CDKs) is essential for cell cycle transversal. Cyclin A activity is regulated on several levels and cyclin A elevation in a number of cancers suggests a role in tumorigenesis. In the present study, we used a modified DNA binding site selection and PCR amplification procedure to identify DNA binding proteins that are potential substrates of cyclin A-CDK. One of the sequences identified is the Sp1 transcription factor binding site. Co-immunoprecipitation experiments show that cyclin A and Sp1 can interact physically. In vitro and in vivo phosphorylation studies indicate that cyclin A-CDK complexes can phosphorylate Sp1. The phosphorylation site is located in the N-terminal region of the protein. Cells overexpressing cyclin A have elevated levels of Sp1 DNA binding activity, suggesting that cyclin A-CDK-mediated phosphorylation augments Sp1 DNA binding properties. In co-transfection studies, cyclin A expression stimulated transcription from an Sp1-regulated promoter. Mutation of the phosphorylation site abrogated cyclin A-CDK-dependent phosphorylation, augmentation of Sp1 transactivation function and DNA binding activity.
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Affiliation(s)
| | - N.Keith Collins
- Department of Medical Microbiology and Immunology, University of California, Davis, CA 95616 and Martinez Veterans Affairs, Martinez, CA 94553,
Durham Veterans Affairs, Durham, NC 27705 and Department of Biochemistry, MCP Hahnemann School of Medicine, Philadelphia, PA 19102, USA Present address: Laboratory of Women’s Health, NIEHS, RTP, NC 27709-2233, USA Corresponding author e-mail:
| | | | - Jane Azizkhan-Clifford
- Department of Medical Microbiology and Immunology, University of California, Davis, CA 95616 and Martinez Veterans Affairs, Martinez, CA 94553,
Durham Veterans Affairs, Durham, NC 27705 and Department of Biochemistry, MCP Hahnemann School of Medicine, Philadelphia, PA 19102, USA Present address: Laboratory of Women’s Health, NIEHS, RTP, NC 27709-2233, USA Corresponding author e-mail:
| | - Maria Mudryj
- Department of Medical Microbiology and Immunology, University of California, Davis, CA 95616 and Martinez Veterans Affairs, Martinez, CA 94553,
Durham Veterans Affairs, Durham, NC 27705 and Department of Biochemistry, MCP Hahnemann School of Medicine, Philadelphia, PA 19102, USA Present address: Laboratory of Women’s Health, NIEHS, RTP, NC 27709-2233, USA Corresponding author e-mail:
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