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Abdelhafiz AS, Fouda MA, Elzefzafy NA, Taha II, Mohemmed OM, Alieldin NH, Toony I, Abdel Wahab AA, Farahat IG. Gene expression analysis of invasive breast carcinoma yields differential patterns in luminal subtypes of breast cancer. Ann Diagn Pathol 2021; 55:151814. [PMID: 34517157 DOI: 10.1016/j.anndiagpath.2021.151814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 08/29/2021] [Indexed: 11/26/2022]
Abstract
Breast cancer is a heterogeneous disease, and new biomarkers are needed for more accurate classification and prediction of prognosis. The goal of this study is to assess the expression of breast cancer classification genes, to identify new molecular signatures in different intrinsic subtypes of breast cancer and to correlate their expression with different clinical variables. The study included 84 female patients newly diagnosed with non-metastatic breast cancer at the outpatient clinic at the National Cancer Institute, Cairo University, Egypt. Detection of 17 breast cancer classification genes was done using RT-PCR in tumor and normal tissues. Estrogen receptor (ER), progesterone receptor (PR), HER2, and Ki67 expression were assessed using IHC assay for intrinsic subtyping. Combined expression of FOXA1 and GATA3 was statistically higher in luminal subtypes in comparison to non-luminal subtypes. In Luminal A subtype; GRB7, EGFR, PTGS2, ID1, and KRT5 were significantly downregulated. FOXA1 and GATA3 were significantly upregulated in luminal B subtype, where EGFR and PTGS2 were significantly downregulated. While ESR1, EGFR, KRT5 and PTGS2 showed significantly low expression in tumor tissue in Her2 enriched subtype, TFF3 was significantly downregulated in triple negative subtype. GATA3 and FOXA1 expression exhibited significant correlation with tumor grade. Furthermore, GATA3, FOXA1, ESR1, and ID1 were also correlated significantly with staging of the tumor. Combined expression of ESR1, FOXA1 and GATA3 represents a molecular signature of luminal subtypes. Long term follow-up is needed to investigate the prognostic effect of breast cancer classification genes found in this study.
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Affiliation(s)
- Ahmed Samir Abdelhafiz
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Egypt; ENCI biobank, National Cancer Institute, Cairo University, Egypt.
| | - Merhan A Fouda
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Egypt; ENCI biobank, National Cancer Institute, Cairo University, Egypt
| | - Nahla A Elzefzafy
- Department of Cancer Biology, National Cancer Institute, Cairo University, Egypt; ENCI biobank, National Cancer Institute, Cairo University, Egypt
| | - Iman I Taha
- ENCI biobank, National Cancer Institute, Cairo University, Egypt
| | - Omar M Mohemmed
- ENCI biobank, National Cancer Institute, Cairo University, Egypt
| | - Nelly H Alieldin
- Department of BioStatistics and Epidemiology, National Cancer Institute, Cairo University, Egypt
| | - Iman Toony
- Department of Medical Oncology, National Cancer Institute, Cairo University, Egypt
| | - Abdelhady Ali Abdel Wahab
- Department of Cancer Biology, National Cancer Institute, Cairo University, Egypt; ENCI biobank, National Cancer Institute, Cairo University, Egypt
| | - Iman Gouda Farahat
- Department of Pathology, National Cancer Institute, Cairo University, Egypt; ENCI biobank, National Cancer Institute, Cairo University, Egypt
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Morrugares R, Correa-Sáez A, Moreno R, Garrido-Rodríguez M, Muñoz E, de la Vega L, Calzado MA. Phosphorylation-dependent regulation of the NOTCH1 intracellular domain by dual-specificity tyrosine-regulated kinase 2. Cell Mol Life Sci 2020; 77:2621-2639. [PMID: 31605148 PMCID: PMC7320039 DOI: 10.1007/s00018-019-03309-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 09/10/2019] [Accepted: 09/18/2019] [Indexed: 12/30/2022]
Abstract
NOTCH proteins constitute a receptor family with a widely conserved role in cell cycle, growing and development regulation. NOTCH1, the best characterised member of this family, regulates the expression of key genes in cell growth and angiogenesis, playing an essential role in cancer development. These observations provide a relevant rationale to propose the inhibition of the intracellular domain of NOTCH1 (Notch1-IC) as a strategy for treating various types of cancer. Notch1-IC stability is mainly controlled by post-translational modifications. FBXW7 ubiquitin E3 ligase-mediated degradation is considered one of the most relevant, being the previous phosphorylation at Thr-2512 residue required. In the present study, we describe for the first time a new regulation mechanism of the NOTCH1 signalling pathway mediated by DYRK2. We demonstrate that DYRK2 phosphorylates Notch1-IC in response to chemotherapeutic agents and facilitates its proteasomal degradation by FBXW7 ubiquitin ligase through a Thr-2512 phosphorylation-dependent mechanism. We show that DYRK2 regulation by chemotherapeutic agents has a relevant effect on the viability, motility and invasion capacity of cancer cells expressing NOTCH1. In summary, we reveal a novel mechanism of regulation for NOTCH1 which might help us to better understand its role in cancer biology.
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Affiliation(s)
- Rosario Morrugares
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menéndez Pidal s/n. 14004, Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Alejandro Correa-Sáez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menéndez Pidal s/n. 14004, Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Rita Moreno
- Division of Cancer Research, School of Medicine, Jacqui Wood Cancer Centre, James Arrott Drive, Ninewells Hospital and Medical School, University of Dundee, Dundee, Scotland, UK
| | - Martín Garrido-Rodríguez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menéndez Pidal s/n. 14004, Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
- Innohealth Group, Madrid, Spain
| | - Eduardo Muñoz
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menéndez Pidal s/n. 14004, Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Laureano de la Vega
- Division of Cancer Research, School of Medicine, Jacqui Wood Cancer Centre, James Arrott Drive, Ninewells Hospital and Medical School, University of Dundee, Dundee, Scotland, UK
| | - Marco A Calzado
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Avda. Menéndez Pidal s/n. 14004, Córdoba, Spain.
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain.
- Hospital Universitario Reina Sofía, Córdoba, Spain.
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Giovannini C, Salzano AM, Baglioni M, Vitale M, Scaloni A, Zambrano N, Giannone FA, Vasuri F, D'Errico A, Svegliati Baroni G, Bolondi L, Gramantieri L. Brivanib in combination with Notch3 silencing shows potent activity in tumour models. Br J Cancer 2019; 120:601-611. [PMID: 30765875 PMCID: PMC6461893 DOI: 10.1038/s41416-018-0375-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 12/03/2018] [Accepted: 12/14/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Sorafenib is the first targeted agent proven to improve survival of patients with advanced hepatocellular carcinoma (HCC) and it has been used in first line treatments with heterogeneous response across patients. Most of the promising agents evaluated in first-line or second-line phase III trials for HCC failed to improve patient survival. The absence of molecular characterisation, including the identification of pathways driving resistance might be responsible for these disappointing results. METHODS 2D DIGE and MS analyses were used to reveal proteomic signatures resulting from Notch3 inhibition in HepG2 cells, combined with brivanib treatment. The therapeutic potential of Notch3 inhibition combined with brivanib treatment was also demonstrated in a rat model of HCC and in cell lines derived from different human cancers. RESULTS Using a proteomic approach, we have shown that Notch3 is strongly involved in brivanib resistance through a p53-dependent regulation of enzymes of the tricarboxylic acid (TCA), both in vitro and in vivo. CONCLUSION We have demonstrated that regulation of the TCA cycle is a common mechanism in different human cancers, suggesting that Notch3 inhibitors combined with brivanib treatment may represent a strong formulation for the treatment of HCC as well as Notch3-driven cancers.
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Affiliation(s)
- Catia Giovannini
- Center for Applied Biomedical Research (CRBA), S.Orsola-Malpighi University Hospital, Bologna, Italy. .,Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
| | - Anna Maria Salzano
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80147, Napoli, Italy
| | - Michele Baglioni
- Center for Applied Biomedical Research (CRBA), S.Orsola-Malpighi University Hospital, Bologna, Italy
| | - Monica Vitale
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy.,CEINGE Biotecnologie Avanzate S.C.aR.L, Napoli, Italy
| | - Andrea Scaloni
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80147, Napoli, Italy
| | - Nicola Zambrano
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Napoli, Italy.,CEINGE Biotecnologie Avanzate S.C.aR.L, Napoli, Italy
| | | | - Francesco Vasuri
- Pathology Unit, St. Orsola-Malpighi University Hospital, 40138, Bologna, Italy
| | - Antonia D'Errico
- Pathology Unit, St. Orsola-Malpighi University Hospital, 40138, Bologna, Italy
| | | | - Luigi Bolondi
- Center for Applied Biomedical Research (CRBA), S.Orsola-Malpighi University Hospital, Bologna, Italy.,Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Laura Gramantieri
- Center for Applied Biomedical Research (CRBA), S.Orsola-Malpighi University Hospital, Bologna, Italy
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Zhang J, Yu K, Han X, Zhen L, Liu M, Zhang X, Ren Y, Shi J. Paeoniflorin influences breast cancer cell proliferation and invasion via inhibition of the Notch‑1 signaling pathway. Mol Med Rep 2017; 17:1321-1325. [PMID: 29115554 DOI: 10.3892/mmr.2017.8002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 05/23/2017] [Indexed: 11/06/2022] Open
Abstract
Breast cancer is one of the most frequently occurring malignant tumors affecting women's health. At least one million new cases are diagnosed each year. Therefore, research that aims to identify strategies that inhibit the growth of breast cancer cells has become a primary worldwide focus. Traditional Chinese medicine (TCM) is regarded as a valuable resource in China, and numerous monomer compositions extracted from TCMs have been demonstrated to exhibit antitumor effects. The present study aimed to determine the impact of paeoniflorin (PF) on breast cancer cell proliferation and invasion, and to explore the mechanisms underlying its effects. Different concentrations of PF were applied to MCF‑7 cells at various time points and the Cell Counting kit‑8 assay was used to determine cell proliferation, a transwell invasion assay was employed to determine cell invasion, reverse transcription‑polymerase chain reaction was used to determine notch homolog‑1 (NOTCH‑1) and Hes family basic helix‑loop helix transcription factor (HES)‑1 mRNA expression levels, and western blotting was used to determine NOTCH‑1 and HES‑1 protein expression levels. The results demonstrated that PF inhibited the proliferation of MCF‑7 cells in a dose‑ and time‑dependent manner. Following treatment with different concentrations of PF, the total number of cells present in the PF‑treated groups was significantly lower when compared with the untreated control group (P<0.05). With increasing doses of PF, the rate of cell invasion significantly decreased, indicating a dose‑dependent association. NOTCH‑1 and HES‑1 mRNA expression levels were reduced when compared with the untreated control group, which reached a statistical significance following treatment with 15 and 30 µM PF (P<0.05). NOTCH‑1 and HES‑1 protein levels demonstrated a similar trend to the mRNA levels, whereby an increase in the concentration of PF was associated with a decrease in NOTCH‑1 and HES‑1 protein expression levels. The results of the present study therefore suggest that PF may inhibit the proliferation and invasiveness of breast cancer cells via inhibition of the NOTCH‑1 signaling pathway.
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Affiliation(s)
- Jing Zhang
- Department of Breast Surgery, Xuzhou Tumor Hospital, Xuzhou, Jiangsu 221000, P.R. China
| | - Kun Yu
- Department of Cardiology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Xuedong Han
- Department of Breast and Thyroid Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Linlin Zhen
- Department of Breast and Thyroid Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Minmin Liu
- Department of Breast and Thyroid Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Xiwen Zhang
- Department of Cardiology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Yi Ren
- Department of Breast and Thyroid Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
| | - Jianhua Shi
- Department of Breast and Thyroid Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
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Lee HJ, Kim MY, Park HS. Phosphorylation-dependent regulation of Notch1 signaling: the fulcrum of Notch1 signaling. BMB Rep 2016; 48:431-7. [PMID: 26058398 PMCID: PMC4576950 DOI: 10.5483/bmbrep.2015.48.8.107] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Indexed: 11/20/2022] Open
Abstract
Notch signaling plays a pivotal role in cell fate determination, cellular development, cellular self-renewal, tumor progression, and has been linked to developmental disorders and carcinogenesis. Notch1 is activated through interactions with the ligands of neighboring cells, and acts as a transcriptional activator in the nucleus. The Notch1 intracellular domain (Notch1-IC) regulates the expression of target genes related to tumor development and progression. The Notch1 protein undergoes modification after translation by posttranslational modification enzymes. Phosphorylation modification is critical for enzymatic activation, complex formation, degradation, and subcellular localization. According to the nuclear cycle, Notch1-IC is degraded by E3 ligase, FBW7 in the nucleus via phosphorylation-dependent degradation. Here, we summarize the Notch signaling pathway, and resolve to understand the role of phosphorylation in the regulation of Notch signaling as well as to understand its relation to cancer.
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Affiliation(s)
- Hye-Jin Lee
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Korea
| | - Mi-Yeon Kim
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Korea
| | - Hee-Sae Park
- Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Korea
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6
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Yuan X, Zhang M, Wu H, Xu H, Han N, Chu Q, Yu S, Chen Y, Wu K. Expression of Notch1 Correlates with Breast Cancer Progression and Prognosis. PLoS One 2015; 10:e0131689. [PMID: 26121683 PMCID: PMC4488260 DOI: 10.1371/journal.pone.0131689] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 06/05/2015] [Indexed: 02/07/2023] Open
Abstract
Various studies have evaluated the significance of Notch1 expression in breast cancer, but the results have ever been disputed. By using 21 studies involving 3867 patients, this meta-analysis revealed that the expression of Notch1 was significantly higher in breast cancer than in normal tissues (OR=7.21; 95%CI, 4.7-11.07) and that higher Notch1 expression was associated with transition from ductal carcinoma in situ (DCIS) to invasive cancer (OR=3.75; 95% CI, 1.8-7.78). Higher Notch1 activity was observed in the basal subtype of breast cancer (OR=2.53; 95% CI, 1.18-5.43). Moreover, patients with Notch1 overexpression exhibited significantly worse overall and recurrence-free survival. Our meta-analysis suggests that Notch inhibitors may be useful in blocking the early progression of DCIS and that the outcomes of clinical trials for Notch1-targeting therapeutics could be improved by the molecular stratification of breast cancer patients.
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Affiliation(s)
- Xun Yuan
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Mingsheng Zhang
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Hua Wu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Hanxiao Xu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Na Han
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Qian Chu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Shiying Yu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Yuan Chen
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Kongming Wu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
- * E-mail:
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Cao YW, Wan GX, Sun JP, Cui XB, Hu JM, Liang WH, Zheng YQ, Li WQ, Li F. Implications of the Notch1-Snail/Slug-epithelial to mesenchymal transition axis for lymph node metastasis in infiltrating ductal carcinoma. Kaohsiung J Med Sci 2014; 31:70-6. [PMID: 25645984 DOI: 10.1016/j.kjms.2014.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 11/04/2014] [Accepted: 11/13/2014] [Indexed: 01/23/2023] Open
Abstract
Emerging evidence suggests that activation of the Notch1 signaling pathway inducing epithelial to mesenchymal transition (EMT) mediated by Snail/Slug promotes invasion and metastasis of breast cancer cells in vitro. However, the implication of the Notch1-Snail/Slug-EMT axis in breast cancer patients remains unclear. A total of 200 formalin-fixed paraffin-embedded samples of invasive ductal carcinoma (IDC), and 37 adjacent non-neoplastic tissue (ANNT) samples from patients who had not been treated with neoadjuvant therapy were examined. Expression of Notch1, Slug, Snail, E-cadherin, N-cadherin, and vimentin was determined by immunohistochemistry on tissue microarrays (TMAs). The correlation between protein expression and clinicopathological characteristics of breast cancer patients was also evaluated. Results showed that a significantly high percentage of cases with high expression of Notch1 (74%, 148/200), Slug (36%, 72/200), Snail (62%, 124/200), and N-cadherin (77%, 153/200) and a low percentage of cases with high expression of E-cadherin (27%, 54/200) were observed in IDC compared to those in ANNTs. High Notch1, Slug, Snail, and N-cadherin expression and low E-cadherin expression in patients with IDC were significantly correlated with lymph node metastasis. In addition, correlation analysis results revealed that high Notch1 expression was significantly associated with high Slug, Snail, and N-cadherin expression and low E-cadherin expression in IDC. Furthermore, a high Snail expression was significantly associated with low E-cadherin expression, and a high Slug expression was found to be significantly associated with increased N-cadherin expression in patients with IDC. Hence, our study suggested that the Notch1-Snail/Slug-EMT axis may be implicated in the lymph node metastasis affecting patients with IDC.
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Affiliation(s)
- Yu-Wen Cao
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Guo-Xing Wan
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Jian-Ping Sun
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Xiao-Bin Cui
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Jian-Ming Hu
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Wei-Hua Liang
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Yu-Qin Zheng
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Wen-Qin Li
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Feng Li
- Department of Pathology and the Key Laboratories for Xinjiang Endemic and Ethnic Diseases (a joint venture with the Chinese Ministry of Education), Shihezi University School of Medicine, Shihezi, Xinjiang, China.
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Peng GL, Tian Y, Lu C, Guo H, Zhao XW, Guo YW, Wang LQ, Du QL, Liu CP. Effects of Notch-1 down-regulation on malignant behaviors of breast cancer stem cells. ACTA ACUST UNITED AC 2014; 34:195-200. [PMID: 24710932 DOI: 10.1007/s11596-014-1258-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 12/23/2013] [Indexed: 12/13/2022]
Abstract
This study examined the effect of Notch-1 signaling on malignant behaviors of breast cancer cells by regulating breast cancer stem cells (BCSCs). BCSCs were enriched by using serum-free medium and knocked out of Notch-1 by using a lentiviral vector. Real-time polymerase chain reaction (RT-PCR) and Western blotting were used to detect the Notch-1 expression levels in breast cancer cell lines and BCSCs, and flow cytometry to detect the proportion of BCSCs in BCSC spheres. The BCSC self-renewal, migration, invasion, and tumorigenicity were examined by the tumor microsphere-forming assay and transwell assay and after xenotransplantation. The results showed that the Notch-1 silencing reduced the number of BCSC spheres, the proportion of BCSCs, and the number of cells penetrating through the transwell membrane. It also decreased the size of tumors that were implanted in the nude mice. These results suggest that Notch-1 signaling is intimately linked to the behaviors of BCSCs. Blocking Notch-1 signaling can inhibit the malignant behaviors of BCSCs, which may provide a promising therapeutical approach for breast cancer.
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Affiliation(s)
- Gong-Ling Peng
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ye Tian
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chong Lu
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hui Guo
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiang-Wang Zhao
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ya-Wen Guo
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Long-Qiang Wang
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qiu-Li Du
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chun-Ping Liu
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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9
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Li LC, Peng Y, Liu YM, Wang LL, Wu XL. Gastric cancer cell growth and epithelial-mesenchymal transition are inhibited by γ-secretase inhibitor DAPT. Oncol Lett 2014; 7:2160-2164. [PMID: 24932308 PMCID: PMC4049710 DOI: 10.3892/ol.2014.1980] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 02/26/2014] [Indexed: 12/13/2022] Open
Abstract
The Notch signaling pathway may be important in the development and progression of several malignancies. However, the functions of Notch signaling in epithelial-mesenchymal transition (EMT) remain largely unknown. The aim of the present study was to delineate Notch1 expression in gastric cancer (GC) and its function in GC EMT. Using quantitative polymerase chain reaction and western blot analysis, the expression of Notch1 was found to increase in GC cell lines compared with the normal gastric mucosa cell line. In addition, Notch1 expression was found to be downregulated in the non-metastatic-derived GC cell line compared with the metastatic-derived cell line. Furthermore, Notch1 expression was significantly increased in the tumor tissues compared with the adjacent normal mucosa tissues, as well as in patients with metastases than in patients without metastases. To explore the role of the Notch1 signaling pathway in EMT, the GC cell lines, AGS and MKN45, were treated with γ-secretase inhibitor DAPT. Using MTT, Transwell and clonality assays, DAPT was found to inhibit the expression of the Notch1 downstream target, Hes1, and impair the ability of the GC cell lines to migrate, invade and proliferate. The protein levels of the mesenchymal markers, vimentin, neural cadherin and Snail, were decreased; however, the expression of the epithelial marker, epithelial cadherin, was increased in the GC cell lines treated with DAPT. These results indicated that the Notch1 signaling pathway may be important in the development and progression of GC. In conclusion, DAPT inhibits the Notch1 signaling pathway, as well as the growth, invasion, metastasis and EMT of GC cells.
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Affiliation(s)
- Lu-Chun Li
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Yang Peng
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Yan-Mim Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Lu-Lu Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Xiao-Ling Wu
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
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Aktas B, Sun H, Yao H, Shi W, Hubbard R, Zhang Y, Jiang T, Ononye SN, Wali VB, Pusztai L, Symmans WF, Hatzis C. Global gene expression changes induced by prolonged cold ischemic stress and preservation method of breast cancer tissue. Mol Oncol 2014; 8:717-27. [PMID: 24602449 DOI: 10.1016/j.molonc.2014.02.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 01/17/2014] [Accepted: 02/05/2014] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Tissue handling can alter global gene expression potentially affecting the analytical performance of genomic signatures, but such effects have not been systematically evaluated. METHODS Tissue samples from 11 previously untreated breast tumors were minced and aliquots were either snap frozen or placed in RNAlater immediately or after 20, 40, 60, 120 or 180 min at room temperature. RNA was profiled on Affymetrix HG-U133A arrays. We used probe-set-wise hierarchical models to evaluate the effect of preservation method on transcript expression and linear mixed effects models to assess the effect of cold ischemic delay on the expression of individual probe sets. Gene set enrichment analysis identified pathways overrepresented in the affected transcripts. We combined the levels of 41 most sensitive transcripts to develop an index of ischemic stress. RESULTS Concordance in global gene expression between the baseline and 40 min delay was higher for samples preserved in RNAlater (average concordance correlation coefficient CCC = 0.92 compared to 0.88 for snap frozen). Overall, 481 transcripts (3%) were significantly affected by the preservation method, most of them involved in processes important in cancer. Prolonged cold ischemic delay of up to 3 h induced marginal global gene expression changes (average CCC = 0.90 between baseline and 3 h delay). However 41 transcripts were significantly affected by cold ischemic delay. Among the induced transcripts were stress response genes, apoptotic response genes; among the downregulated were genes involved in metabolism, protein processing and cell cycle regulation. An index combining the expression levels of these genes was proportional to the cold ischemic delay. CONCLUSIONS Prolonged cold ischemia induces significant transcriptional changes in a small subset of transcripts in the tissue. Furthermore, the expression level of about 3% of the transcripts is affected by the preservation method. These sensitive transcripts should not be included in genomic signatures for more reliable analytical performance.
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Affiliation(s)
- Bilge Aktas
- Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
| | - Hongxia Sun
- Department of Pathology, UT M.D. Anderson Cancer Center, P.O. Box 85, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - Hui Yao
- Department of Bioinformatics and Computational Biology, UT M.D. Anderson Cancer Center, P.O. Box 301402, Houston, TX 77230, USA
| | - Weiwei Shi
- Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
| | - Rebekah Hubbard
- Department of Pathology, UT M.D. Anderson Cancer Center, P.O. Box 85, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - Ya Zhang
- Department of Pathology, UT M.D. Anderson Cancer Center, P.O. Box 85, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - Tingting Jiang
- Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
| | - Sophia N Ononye
- Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
| | - Vikram B Wali
- Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
| | - Lajos Pusztai
- Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
| | - W Fraser Symmans
- Department of Pathology, UT M.D. Anderson Cancer Center, P.O. Box 85, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - Christos Hatzis
- Section of Medical Oncology, Yale Cancer Center, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA.
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Notch3 overexpression associates with poor prognosis in human non-small-cell lung cancer. Med Oncol 2013; 30:595. [PMID: 23645556 DOI: 10.1007/s12032-013-0595-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 04/26/2013] [Indexed: 12/20/2022]
Abstract
Notch3 receptor is one of the mammalian Notch family receptors (Notch1-4) which plays an important role in the regulation of cellular proliferation, differentiation, and apoptosis. Overexpression of Notch3 is associated with tumorigenesis. In order to assess the expression of Notch3 in Chinese non-small-cell lung cancer (NSCLC) patients and determine its association with prognosis, we designed a prospective study with five years of follow-up to evaluate Notch3 expression in NSCLC tissues and adjacent non-cancerous normal lung tissues from 131 patients undergoing surgical treatment by immunohistochemistry and western blot analysis. Notch3 had high expression in 67 of 131 cases of NSCLC (51.1 %), which was significantly higher than in adjacent noncancerous lung tissues. Moreover, Notch3 overexpression was significantly correlated with TNM stage (P = 5.41e-07 in squamous cell carcinoma, P = 5.338e-07 in adenocarcinoma) and lymph node metastasis (P = 0.00764 in squamous cell carcinoma, P = 0.01491 in adenocarcinoma). Kaplan-Meier survival analysis showed that the overall survival times in patients expressing Notch3 in NSCLC were shorter. Multivariate analysis further demonstrated that Notch3 was an independent prognostic factor for patients with NSCLC. Therefore, Notch3 might be a useful biomarker to predict the prognosis of patients with NSCLC.
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