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Singh T, Sharma D, Sharma R, Tuli HS, Haque S, Ramniwas S, Mathkor DM, Yadav V. The Role of Phytonutrient Kaempferol in the Prevention of Gastrointestinal Cancers: Recent Trends and Future Perspectives. Cancers (Basel) 2024; 16:1711. [PMID: 38730663 PMCID: PMC11083332 DOI: 10.3390/cancers16091711] [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: 02/26/2024] [Revised: 04/18/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
In recent years, kaempferol, a natural flavonoid present in various fruits and vegetables, has received significant attention in gastrointestinal cancer research due to its varied therapeutic effects. Kaempferol has been proven to alter several molecular mechanisms and pathways, such as the PI3/Akt, mTOR, and Erk/MAPK pathway involved in cancer progression, showing its inhibitory effects on cell proliferation, survival, angiogenesis, metastasis, and migration. Kaempferol is processed in the liver and small intestine, but limited bioavailability has been a major concern in the clinical implications of kaempferol. Nano formulations have been proven to enhance kaempferol's efficacy in cancer prevention. The synergy of nanotechnology and kaempferol has shown promising results in in vitro studies, highlighting the importance for more in vivo research and clinical trials to determine safety and efficacy. This review aims to focus on the role of kaempferol in various types of gastrointestinal cancer and how the combination of kaempferol with nanotechnology helps in improving therapeutic efficacy in cancer treatment.
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Affiliation(s)
- Tejveer Singh
- Translational Oncology Laboratory, Department of Zoology, Hansraj College, Delhi University, New Delhi 110007, India; (D.S.); (R.S.)
- Division of Cyclotron and Radiopharmaceutical Sciences, Institute of Nuclear Medicine and Allied Sciences-Defence Research and Development Organization, (INMAS-DRDO) New Delhi, Delhi 110054, India
| | - Deepika Sharma
- Translational Oncology Laboratory, Department of Zoology, Hansraj College, Delhi University, New Delhi 110007, India; (D.S.); (R.S.)
| | - Rishabh Sharma
- Translational Oncology Laboratory, Department of Zoology, Hansraj College, Delhi University, New Delhi 110007, India; (D.S.); (R.S.)
- Amity Stem Cell Institute, Amity Medical School, Amity University, Gurugram 122412, India
| | - Hardeep Singh Tuli
- Department of Bio-Sciences & Technology, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala 133207, India;
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia; (S.H.); (D.M.M.)
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut 11022801, Lebanon
| | - Seema Ramniwas
- University Centre for Research & Development, University Institute of Pharmaceutical Sciences, Chandigarh University, Gharuan, Mohali 140413, India;
| | - Darin Mansor Mathkor
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia; (S.H.); (D.M.M.)
| | - Vikas Yadav
- Department of Translational Medicine, Clinical Research Centre, Skåne University Hospital, Lund University, SE-20213 Malmö, Sweden
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Cheng B, Xu L, Zhang Y, Yang H, Liu S, Ding S, Zhao H, Sui Y, Wang C, Quan L, Liu J, Liu Y, Wang H, Zheng Z, Wu X, Guo J, Wen Z, Zhang R, Wang F, Liu H, Sun S. Correlation between NGS panel-based mutation results and clinical information in colorectal cancer patients. Heliyon 2024; 10:e29299. [PMID: 38623252 PMCID: PMC11016705 DOI: 10.1016/j.heliyon.2024.e29299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 04/17/2024] Open
Abstract
Early mutation identification guides patients with colorectal cancer (CRC) toward targeted therapies. In the present study, 414 patients with CRC were enrolled, and amplicon-based targeted next-generation sequencing (NGS) was then performed to detect genomic alterations within the 73 cancer-related genes in the OncoAim panel. The overall mutation rate was 91.5 % (379/414). Gene mutations were detected in 38/73 genes tested. The most frequently mutated genes were TP53 (60.9 %), KRAS (46.6 %), APC (30.4 %), PIK3CA (15.9 %), FBXW7 (8.2 %), SMAD4 (6.8 %), BRAF (6.5 %), and NRAS (3.9 %). Compared with the wild type, TP53 mutations were associated with low microsatellite instability/microsatellite stability (MSI-L/MSS) (P = 0.007), tumor location (P = 0.043), and histological grade (P = 0.0009); KRAS mutations were associated with female gender (P = 0.026), distant metastasis (P = 0.023), TNM stage (P = 0.013), and histological grade (P = 0.004); APC mutations were associated with patients <64 years of age at diagnosis (P = 0.04); PIK3CA mutations were associated with tumor location (P = 4.97e-06) and female gender (P = 0.018); SMAD4 mutations were associated with tumor location (P = 0.033); BRAF mutations were associated with high MSI (MSI-H; P = 6.968e-07), tumor location (P = 1.58e-06), and histological grade (P = 0.04). Mutations in 164 individuals were found to be pathogenic or likely pathogenic. A total of 26 patients harbored MSI-H tumors and they all had at least one detected gene mutation. Mutated genes were enriched in signaling pathways associated with CRC. The present findings have important implications for improving the personalized treatment of patients with CRC in China.
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Affiliation(s)
- Bo Cheng
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Lin Xu
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Yunzhi Zhang
- Singlera Genomics (Shanghai) Ltd., Shanghai 201318, China
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Huimin Yang
- Singlera Genomics (Shanghai) Ltd., Shanghai 201318, China
| | - Shan Liu
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Shanshan Ding
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Huan Zhao
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Yi Sui
- Singlera Genomics (Shanghai) Ltd., Shanghai 201318, China
| | - Chan Wang
- Singlera Genomics (Shanghai) Ltd., Shanghai 201318, China
| | - Lanju Quan
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Jinhong Liu
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Ye Liu
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Hongming Wang
- Singlera Genomics (Shanghai) Ltd., Shanghai 201318, China
| | - Zhaoqing Zheng
- Singlera Genomics (Shanghai) Ltd., Shanghai 201318, China
| | - Xizhao Wu
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Jing Guo
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Zhaohong Wen
- Singlera Genomics (Shanghai) Ltd., Shanghai 201318, China
| | - Ruya Zhang
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Fei Wang
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
| | - Hongmei Liu
- Singlera Genomics (Shanghai) Ltd., Shanghai 201318, China
| | - Suozhu Sun
- Department of Pathology, Chinese People's Liberation Army Rocket Force Characteristic Medical Center, Beijing 100037, China
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Dey-Rao R, Shen S, Qu J, Melendy T. Proteomics analysis reveals novel phosphorylated residues and associated proteins of the polyomavirus DNA replication initiation complex. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.08.579500. [PMID: 38370620 PMCID: PMC10871363 DOI: 10.1101/2024.02.08.579500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Polyomavirus ( PyV ) Large T-antigen ( LT ) is the major viral regulatory protein that targets numerous cellular factors/pathways: tumor suppressors, cell cycle regulators, transcription and chromatin regulators, as well as other factors for viral replication. LT directly recruits the cellular replication factors involved in LT's recognition of the viral origin, origin unwinding, and primer synthesis which is carried out by mutual interactions between LT, DNA polymerase alpha-primase ( Polprim ), and single strand (ss) DNA binding replication protein A ( RPA ). The activities as well as interactions of these three with each other as well as other factors, are known to be modulated by post-translational modifications (PTMs); however, modern high-sensitivity proteomic analyses of the PTMs as well as proteins associated with the three have been lacking. Elution from immunoprecipitation (IP) of the three factors were subjected to high-resolution liquid chromatography tandem mass spectrometry (LC-MS/MS). We identified 479 novel phosphorylated amino acid residues (PAARs) on the three factors: 82 PAARs on SV40 LT, 305 on the Polprim heterotetrametric complex and 92 on the RPA heterotrimeric complex. LC-MS/MS analysis also identified proteins that co-immunoprecipitated (coIP-ed) with the three factors that were not previously reported: 374 with LT, 453 with Polprim and 183 with RPA. We used a bioinformatic-based approach to analyze the proteomics data and demonstrate a highly significant "enrichment" of transcription-related process associated uniquely with LT, consistent with its role as a transcriptional regulator, as opposed to Polprim and RPA associated proteins which showed no such enrichment. The most significant cell cycle related network was regulated by ETS proto-oncogene 1 (ETS1), indicating its involvement in regulatory control of DNA replication, repair, and metabolism. The interaction between LT and ETS1 is validated and shown to be independent of nucleic acids. One of the novel phosphorylated aa residues detected on LT from this study, has been demonstrated by us to affect DNA replication activities of SV40 Large T-antigen. Our data provide substantial additional novel information on PAARs, and proteins associated with PyV LT, and the cellular Polprim-, RPA- complexes which will benefit research in DNA replication, transformation, transcription, and other viral and host cellular processes.
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Chi H, Huang J, Yan Y, Jiang C, Zhang S, Chen H, Jiang L, Zhang J, Zhang Q, Yang G, Tian G. Unraveling the role of disulfidptosis-related LncRNAs in colon cancer: a prognostic indicator for immunotherapy response, chemotherapy sensitivity, and insights into cell death mechanisms. Front Mol Biosci 2023; 10:1254232. [PMID: 37916187 PMCID: PMC10617599 DOI: 10.3389/fmolb.2023.1254232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/03/2023] [Indexed: 11/03/2023] Open
Abstract
Background: Colon cancer, a prevalent and deadly malignancy worldwide, ranks as the third leading cause of cancer-related mortality. Disulfidptosis stress triggers a unique form of programmed cell death known as disulfidoptosis, characterized by excessive intracellular cystine accumulation. This study aimed to establish reliable bioindicators based on long non-coding RNAs (LncRNAs) associated with disulfidptosis-induced cell death, providing novel insights into immunotherapeutic response and prognostic assessment in patients with colon adenocarcinoma (COAD). Methods: Univariate Cox proportional hazard analysis and Lasso regression analysis were performed to identify differentially expressed genes strongly associated with prognosis. Subsequently, a multifactorial model for prognostic risk assessment was developed using multiple Cox proportional hazard regression. Furthermore, we conducted comprehensive evaluations of the characteristics of disulfidptosis response-related LncRNAs, considering clinicopathological features, tumor microenvironment, and chemotherapy sensitivity. The expression levels of prognosis-related genes in COAD patients were validated using quantitative real-time fluorescence PCR (qRT-PCR). Additionally, the role of ZEB1-SA1 in colon cancer was investigated through CCK8 assays, wound healing experiment and transwell experiments. Results: disulfidptosis response-related LncRNAs were identified as robust predictors of COAD prognosis. Multifactorial analysis revealed that the risk score derived from these LncRNAs served as an independent prognostic factor for COAD. Patients in the low-risk group exhibited superior overall survival (OS) compared to those in the high-risk group. Accordingly, our developed Nomogram prediction model, integrating clinical characteristics and risk scores, demonstrated excellent prognostic efficacy. In vitro experiments demonstrated that ZEB1-SA1 promoted the proliferation and migration of COAD cells. Conclusion: Leveraging medical big data and artificial intelligence, we constructed a prediction model for disulfidptosis response-related LncRNAs based on the TCGA-COAD cohort, enabling accurate prognostic prediction in colon cancer patients. The implementation of this model in clinical practice can facilitate precise classification of COAD patients, identification of specific subgroups more likely to respond favorably to immunotherapy and chemotherapy, and inform the development of personalized treatment strategies for COAD patients based on scientific evidence.
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Affiliation(s)
- Hao Chi
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Jinbang Huang
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Yang Yan
- The Third Affiliated Hospital of Guizhou Medical University, Duyun, China
| | - Chenglu Jiang
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Shengke Zhang
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Haiqing Chen
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Lai Jiang
- Clinical Medical College, Southwest Medical University, Luzhou, China
| | - Jieying Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Qinghong Zhang
- Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Guanhu Yang
- Department of Specialty Medicine, Ohio University, Athens, OH, United States
| | - Gang Tian
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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Al-Hujaily EM, Al-Sowayan BS, Alyousef Z, Uddin S, Alammari F. Recruiting Immunity for the Fight against Colorectal Cancer: Current Status and Challenges. Int J Mol Sci 2022; 23:ijms232213696. [PMID: 36430176 PMCID: PMC9697544 DOI: 10.3390/ijms232213696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/31/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
Cancer immunotherapies have changed the landscape of cancer management and improved the standard treatment protocols used in multiple tumors. This has led to significant improvements in progression-free survival and overall survival rates. In this review article, we provide an insight into the major immunotherapeutic methods that are currently under investigation for colorectal cancer (CRC) and their clinical implementations. We emphasize therapies that are based on monoclonal antibodies (mAbs) and adoptive cell therapy, their mechanisms of action, their advantages, and their potential in combination therapy. We also highlight the clinical trials that have demonstrated both the therapeutic efficacy and the toxicities associated with each method. In addition, we summarize emerging targets that are now being evaluated as potential interventions for CRC. Finally, we discuss current challenges and future direction for the cancer immunotherapy field.
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Affiliation(s)
- Ensaf M. Al-Hujaily
- Department of Blood and Cancer Research, King Abdullah International Medical Research Center, Riyadh 11481, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia
| | - Batla S. Al-Sowayan
- Department of Blood and Cancer Research, King Abdullah International Medical Research Center, Riyadh 11481, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia
| | - Zeyad Alyousef
- Department of Surgery, College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh 14611, Saudi Arabia
| | - Shahab Uddin
- Translational Research Institute and Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha 3050, Qatar
| | - Farah Alammari
- Department of Blood and Cancer Research, King Abdullah International Medical Research Center, Riyadh 11481, Saudi Arabia
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, King Saud bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia
- Correspondence:
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Nejabati HR, Roshangar L. Kaempferol: A potential agent in the prevention of colorectal cancer. Physiol Rep 2022; 10:e15488. [PMID: 36259115 PMCID: PMC9579739 DOI: 10.14814/phy2.15488] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 04/18/2023] Open
Abstract
Colorectal cancer (CRC) is the third most prevalent cancer in relation to incidence and mortality rate and its incidence is considerably increasing annually due to the change in the dietary habit and lifestyle of the world population. Although conventional therapeutic options, such as surgery, chemo- and radiotherapy have profound impacts on the treatment of CRC, dietary therapeutic agents, particularly natural products have been regarded as the safest alternatives for the treatment of CRC. Kaempferol (KMP), a naturally derived flavonol, has been shown to reduce the production of reactive oxygen species (ROS), such as superoxide ions, hydroxyl radicals, and reactive nitrogen species (RNS), especially peroxynitrite. Furthermore, this flavonol inhibits xanthine oxidase (XO) activity and increases the activities of catalase, heme oxygenase-1 (HO), and superoxide dismutase (SOD) in a wide range of cancer and non-cancer cells. Based on several studies, KMP is also a hopeful anticancer which carries out its anticancer action via suppression of angiogenesis, stimulation of apoptosis, and cell cycle arrest. Due to various applications of KMP as an anticancer flavonol, this review article aims to highlight the current knowledge regarding the role of KMP in CRC.
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Affiliation(s)
| | - Leila Roshangar
- Stem Cell Research CenterTabriz University of Medical SciencesTabrizIran
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7
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Alpha Mangostin and Cisplatin as Modulators of Exosomal Interaction of Ovarian Cancer Cell with Fibroblasts. Int J Mol Sci 2022; 23:ijms23168913. [PMID: 36012171 PMCID: PMC9408324 DOI: 10.3390/ijms23168913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 12/02/2022] Open
Abstract
The diversity of exosomes and their role in the microenvironment make them an important point of interest in the development of cancer. In our study, we evaluated the effect of exosomes derived from ovarian cancer cells on gene expression in fibroblasts, including genes involved in metastasis. We also attempted to evaluate the indirect effect of cisplatin and/or α-mangostin on metastasis. In this aspect, we verified the changes induced by the drugs we tested on vesicular transfer associated with the release of exosomes by cells. We isolated exosomes from ovarian cancer cells treated and untreated with drugs, and then normal human fibroblasts were treated with the isolated exosomes. Changes in the expression of genes involved in the metastasis process were then examined. In our study, we observed altered expression of genes involved in various steps of the metastasis process (including genes related to cell adhesion, genes related to the interaction with the extracellular matrix, the cell cycle, cell growth and proliferation, and apoptosis). We have shown that α-mangostin and/or cisplatin, as chemotherapeutic agents, not only directly affect tumor cells but may also indirectly (via exosomes) contribute to delaying metastasis development.
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8
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Comprehensive Analysis of Genomic and Expression Data Identified Potential Markers for Predicting Prognosis and Immune Response in CRC. Genet Res (Camb) 2022; 2022:1831211. [PMID: 35975176 PMCID: PMC9356844 DOI: 10.1155/2022/1831211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/29/2022] Open
Abstract
Colorectal cancer (CRC) is the most prevalent type of malignant tumor of the gastrointestinal tract. In the current study, we characterized the landscape of genomic alterations in CRC patients. Based on the results of whole-exome sequencing (WES), we identified 31 significantly mutated genes. Among them, several genes including TP53, KRAS, APC, PI3KCA, and BRAF were reported as significantly mutated genes in previous studies. In the current study, the most frequently mutated gene was TP53, which encodes tumor suppressor p53, affecting approximately 60% of CRC patients. In addition, we performed the expression profiles of significantly mutated genes between the normal group and tumor groups and identified 20 differentially expressed genes (DEGs); among them, CSMD3, DCHS2, LRP2, RYR2, and ZFHX4 were significantly negatively correlated with PFS. Moreover, consensus clustering analysis for CRC based on the expression of significantly somatic mutated genes was performed. In total, three subtypes of CRC were identified in CRC, including cluster1 (n = 453), cluster2 (n = 158), and cluster 3 (n = 9), based on expression level of significantly somatic mutated genes. Clinicopathological features analysis showed subtype C1 had the longest progression-free survival (PFS) with median time of 8.2 years, while subtypes C2 and C3 had 4.1 and 2.7 years of PFS, respectively. Moreover, we found three subtypes related to tumor infiltration depth, lymph node metastasis, and distant metastasis. Immune infiltration analysis showed the tumor infiltration levels of B cell native, T cell CD8+, T cell CD4+ memory activated, T cell gamma delta, NK cell resting, macrophage M0, macrophage M2, myeloid dendritic cell activated, mast cell activated, and mast cell resting significantly changed among the three groups, demonstrating the three subgroups classified by 22 somatically significantly mutated genes had a high capacity to differentiate patients with different immune statuses, which is helpful for the prediction of immunotherapy response of CRC patients. Our findings could provide novel potential predictive indicators for CRC prognosis and therapy targets for CRC immunotherapy.
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Philipovskiy A, Ghafouri R, Dwivedi AK, Alvarado L, McCallum R, Maegawa F, Konstantinidis IT, Hakim N, Shurmur S, Awasthi S, Gaur S, Corral J. Association Between Tumor Mutation Profile and Clinical Outcomes Among Hispanic-Latino Patients With Metastatic Colorectal Cancer. Front Oncol 2022; 11:772225. [PMID: 35141142 PMCID: PMC8819001 DOI: 10.3389/fonc.2021.772225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/13/2021] [Indexed: 11/23/2022] Open
Abstract
In the United States, CRC is the third most common type of cancer and the second leading cause of cancer-related death. Although the incidence of CRC among the Hispanic population has been declining, recently, a dramatic increase in CRC incidents among HL younger than 50 years of age has been reported. The incidence of early-onset CRC is more significant in HL population (45%) than in non-Hispanic Whites (27%) and African-Americans (15%). The reason for these racial disparities and the biology of CRC in the HL are not well understood. We performed this study to understand the biology of the disease in HL patients. We analyzed formalin-fixed paraffin-embedded tumor tissue samples from 52 HL patients with mCRC. We compared the results with individual patient clinical histories and outcomes. We identified commonly altered genes in HL patients (APC, TP53, KRAS, GNAS, and NOTCH). Importantly, mutation frequencies in the APC gene were significantly higher among HL patients. The combination of mutations in the APC, NOTCH, and KRAS genes in the same tumors was associated with a higher risk of progression after first-line of chemotherapy and overall survival. Our data support the notion that the molecular drivers of CRC might be different in HL patients.
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Affiliation(s)
- Alexander Philipovskiy
- Department of Internal Medicine, Division of Hematology-Oncology, Texas Tech University Health Sciences Center Lubbock, Lubbock, TX, United States
- *Correspondence: Alexander Philipovskiy,
| | - Reshad Ghafouri
- Department of Internal Medicine, Division of Hematology-Oncology, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Alok Kumar Dwivedi
- Department of Molecular and Translational Medicine, Division of Biostatistics & Epidemiology, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Luis Alvarado
- Department of Molecular and Translational Medicine, Division of Biostatistics & Epidemiology, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Richard McCallum
- Department of Internal Medicine, Division of Gastroenterology, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Felipe Maegawa
- Department of Surgery, Southern Arizona VA Health Care System, University of Arizona, Tucson, AZ, United States
| | - Ioannis T. Konstantinidis
- Department of Surgery, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Nawar Hakim
- Department of Pathology, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Scott Shurmur
- Department of Internal Medicine, Division of Hematology-Oncology, Texas Tech University Health Sciences Center Lubbock, Lubbock, TX, United States
| | - Sanjay Awasthi
- Department of Internal Medicine, Division of Hematology-Oncology, Texas Tech University Health Sciences Center Lubbock, Lubbock, TX, United States
| | - Sumit Gaur
- Department of Internal Medicine, Division of Hematology-Oncology, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Javier Corral
- Department of Internal Medicine, Division of Hematology-Oncology, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
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Alder A, Struck NS, Xu M, Johnson JW, Wang W, Pallant D, Cook MA, Rambow J, Lemcke S, Gilberger TW, Wright GD. A non-reactive natural product precursor of the duocarmycin family has potent and selective antimalarial activity. Cell Chem Biol 2021; 29:840-853.e6. [PMID: 34710358 DOI: 10.1016/j.chembiol.2021.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/15/2021] [Accepted: 10/02/2021] [Indexed: 11/27/2022]
Abstract
We identify a selective nanomolar inhibitor of blood-stage malarial proliferation from a screen of microbial natural product extracts. The responsible compound, PDE-I2, is a precursor of the anticancer duocarmycin family that preserves the class's sequence-specific DNA binding but lacks its signature DNA alkylating cyclopropyl warhead. While less active than duocarmycin, PDE-I2 retains comparable antimalarial potency to chloroquine. Importantly, PDE-I2 is >1,000-fold less toxic to human cell lines than duocarmycin, with mitigated impacts on eukaryotic chromosome stability. PDE-I2 treatment induces severe defects in parasite nuclear segregation leading to impaired daughter cell formation during schizogony. Time-of-addition studies implicate parasite DNA metabolism as the target of PDE-I2, with defects observed in DNA replication and chromosome integrity. We find the effect of duocarmycin and PDE-I2 on parasites is phenotypically indistinguishable, indicating that the DNA binding specificity of duocarmycins is sufficient and the genotoxic cyclopropyl warhead is dispensable for the parasite-specific selectivity of this compound class.
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Affiliation(s)
- Arne Alder
- Centre for Structural Systems Biology, 22607 Hamburg, Germany; Bernhard Nocht Institute for Tropical Medicine, Department of Cellular Parasitology, 20359 Hamburg, Germany; University of Hamburg, Department of Biology, 20146 Hamburg, Germany
| | - Nicole S Struck
- Bernhard Nocht Institute for Tropical Medicine, Department of Cellular Parasitology, 20359 Hamburg, Germany; M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada; German Centre for Infection Research (DZIF), Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany
| | - Min Xu
- M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Jarrod W Johnson
- M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Wenliang Wang
- M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Daniel Pallant
- M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Michael A Cook
- M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Janis Rambow
- Centre for Structural Systems Biology, 22607 Hamburg, Germany; Bernhard Nocht Institute for Tropical Medicine, Department of Cellular Parasitology, 20359 Hamburg, Germany; University of Hamburg, Department of Biology, 20146 Hamburg, Germany
| | - Sarah Lemcke
- Centre for Structural Systems Biology, 22607 Hamburg, Germany; Bernhard Nocht Institute for Tropical Medicine, Department of Cellular Parasitology, 20359 Hamburg, Germany; University of Hamburg, Department of Biology, 20146 Hamburg, Germany
| | - Tim W Gilberger
- Centre for Structural Systems Biology, 22607 Hamburg, Germany; Bernhard Nocht Institute for Tropical Medicine, Department of Cellular Parasitology, 20359 Hamburg, Germany; University of Hamburg, Department of Biology, 20146 Hamburg, Germany.
| | - Gerard D Wright
- M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada.
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11
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Abstract
Abstract
Background
Desmoid tumors/aggressive fibromatosis (DTs/AF) are cytological bland fibrous neoplasms originating from the musculoaponeurotic structures throughout the body. The exact cause still remains unknown, however, they may present sporadically or as a manifestation of a hereditary syndrome called familial adenomatous polyposis (FAP). Although they lack the capacity to establish metastases, DTs/AF may be devastated and occasionally fatal. As a result of the heterogeneity of DTs/AF, treatment needs to be individualized to improve local tumor control and maintain patients’ quality of life. Therefore, after a multidisciplinary approach, all treatment options should be discussed with patients. Where systemic chemotherapy has been shown to be unsuccessful with marked side effects in case of advanced DTs/AF, new therapeutic options are needed.
Methods
A Medline search was conducted and published articles in different studies from 2000 to the present were reviewed.
Conclusion
More research is needed to illustrate both the prognostic and predictive factors of the targeted therapy and the value of their combinations with or without other treatment modalities to get the best result for the treatment of advanced DTs/AF.
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12
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Phull MS, Jadav SS, Gundla R, Mainkar PS. A perspective on medicinal chemistry approaches towards adenomatous polyposis coli and Wnt signal based colorectal cancer inhibitors. Eur J Med Chem 2021; 212:113149. [PMID: 33445154 DOI: 10.1016/j.ejmech.2020.113149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/22/2020] [Accepted: 12/28/2020] [Indexed: 12/24/2022]
Abstract
Colorectal cancer (CRC) is one of the major causes of carcinogenic mortality in numbers only after lung and breast cancers. The mutations in adenomatous polyposis coli (APC) gene leads to formation of colorectal polyps in the colonic region and which develop as a malignant tumour upon coalition with patient related risk factors. The protein-protein interaction (PPI) of APC with Asef (A Rac specific guanine nucleotide exchange factor) overwhelms the patient's conditions by rapidly spreading in the entire colorectal region. Most mutations in APC gene occur in mutated cluster region (MCR), where it specifically binds with the cytosolic β-catenin to regulate the Wnt signalling pathway required for CRC cell adhesion, invasion, progression, differentiation and stemness in initial cell cycle phages. The current broad spectrum perspective is attempted to elaborate the sources of identification, development of selective APC inhibitors by targeting emopamil-binding protein (EBP) & dehydrocholesterol reductase-7 & 24 (DHCR-7 & 24); APC-Asef, β-catenin/APC, Wnt/β-catenin, β-catenin/TCF4 PPI inhibitors with other vital Wnt signal cellular proteins and APC/Pol-β interface of colorectal cancer. In this context, this perspective would serve as a platform for design of new medicinal agents by targeting cellular essential components which could accelerate anti-colorectal potential candidates.
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Affiliation(s)
- Manjinder Singh Phull
- Department of Chemistry, School of Science, GITAM (Deemed to Be University), Hyderabad, 502329, Telangana, India
| | - Surender Singh Jadav
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500007, Telangana, India
| | - Rambabu Gundla
- Department of Chemistry, School of Science, GITAM (Deemed to Be University), Hyderabad, 502329, Telangana, India
| | - Prathama S Mainkar
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Utter Pradesh, India.
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13
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Stewart JA, Schauer G, Bhagwat AS. Visualization of uracils created by APOBEC3A using UdgX shows colocalization with RPA at stalled replication forks. Nucleic Acids Res 2020; 48:e118. [PMID: 33074285 PMCID: PMC7672425 DOI: 10.1093/nar/gkaa845] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 09/11/2020] [Accepted: 09/18/2020] [Indexed: 12/19/2022] Open
Abstract
The AID/APOBEC enzymes deaminate cytosines in single-stranded DNA (ssDNA) and play key roles in innate and adaptive immunity. The resulting uracils cause mutations and strand breaks that inactivate viruses and diversify antibody repertoire. Mutational evidence suggests that two members of this family, APOBEC3A (A3A) and APOBEC3B, deaminate cytosines in the lagging-strand template during replication. To obtain direct evidence for the presence of these uracils, we engineered a protein that covalently links to DNA at uracils, UdgX, for mammalian expression and immunohistochemistry. We show that UdgX strongly prefers uracils in ssDNA over those in U•G or U:A pairs, and localizes to nuclei in a dispersed form. When A3A is expressed in these cells, UdgX tends to form foci. The treatment of cells with cisplatin, which blocks replication, causes a significant increase in UdgX foci. Furthermore, this protein- and hence the uracils created by A3A- colocalize with replication protein A (RPA), but not with A3A. Using purified proteins, we confirm that RPA inhibits A3A by binding ssDNA, but despite its overexpression following cisplatin treatment, RPA is unable to fully protect ssDNA created by cisplatin adducts. This suggests that cisplatin treatment of cells expressing APOBEC3A should cause accumulation of APOBEC signature mutations.
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Affiliation(s)
- Jessica A Stewart
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA
| | - Grant Schauer
- Department of Biochemistry & Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Ashok S Bhagwat
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA.,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI 48201, USA
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14
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Fu X, Wang X, Duanmu J, Li T, Jiang Q. KRAS mutations are negatively correlated with immunity in colon cancer. Aging (Albany NY) 2020; 13:750-768. [PMID: 33254149 PMCID: PMC7834984 DOI: 10.18632/aging.202182] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 10/08/2020] [Indexed: 12/12/2022]
Abstract
The heterogeneity of colon cancer tumors suggests that therapeutics targeting specific molecules may be effective in only a few patients. It is therefore necessary to explore gene mutations in colon cancer. In this study, we obtained colon cancer samples from The Cancer Genome Atlas, and the International Cancer Genome Consortium. We evaluated the landscape of somatic mutations in colon cancer and found that KRAS mutations, particularly rs121913529, were frequent and had prognostic value. Using ESTIMATE analysis, we observed that the KRAS-mutated group had higher tumor purity, lower immune score, and lower stromal score than the wild-type group. Through single-sample Gene Set Enrichment Analysis and Gene Set Enrichment Analysis, we found that KRAS mutations negatively correlated with enrichment levels of tumor infiltrating lymphocytes, inflammation, and cytolytic activities. HLA gene expression and checkpoint-related genes were also lower in the KRAS-mutated group. Finally, we found 24 immune-related genes that differed in expression between the KRAS-mutated and wild-type samples, which may provide clues to the mechanism of KRAS-related immune alteration. Our findings are indicative of the prognostic and predictive value of KRAS and illustrate the relationship between KRAS mutations and immune activity in colon cancer.
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Affiliation(s)
- Xiaorui Fu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People's Republic of China
- Queen Mary College, Medical Department, Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Xinyi Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People's Republic of China
- Queen Mary College, Medical Department, Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Jinzhong Duanmu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Taiyuan Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Qunguang Jiang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People's Republic of China
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15
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Rezasoltani S, Hadizadeh M, Golmohammadi M, Nazemalhossini-Mojarad E, Salari S, Rezvani H, Asadzadeh-Aghdaei H, Ladomery M, Young C, Anaraki F, Almond S, Ashrafian Bonab M. APC and AXIN2 Are Promising Biomarker Candidates for the Early Detection of Adenomas and Hyperplastic Polyps. Cancer Inform 2020; 19:1176935120972383. [PMID: 33239858 PMCID: PMC7672736 DOI: 10.1177/1176935120972383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 10/19/2020] [Indexed: 01/05/2023] Open
Abstract
Aberrant activation of the WNT/CTNNB1 pathway is notorious in colorectal cancer (CRC). Here, we demonstrate that the expression of specific and crucial WNT signaling pathway genes is linked to disease progression in colonic adenomatous (AP) and hyperplastic (HP) polyps in an Iranian patient population. Thus, we highlight potential gene expression profiles as candidate novel biomarkers for the early detection of CRC. From a 12-month study (2016-2017), 44 biopsy samples were collected during colonoscopy from the patients with colorectal polyps and 10 healthy subjects for normalization. Clinical and demographic data were collected in all cases, and mRNA expression of APC, CTNNB1, CDH1, AXIN1, and AXIN2 genes was investigated using real-time polymerase chain reaction (PCR). CTNNB1 and CDH1 expression levels were unaltered in AP and HP subjects, whereas mRNA expression of APC was decreased in AP contrasted with HP subjects, with a significant association between APC downregulation and polyp size. Although AXIN1 showed no changes between AP and HP groups, a significant association between AXIN1 and dysplasia grade was found. Also, significant upregulation of AXIN2 in both AP and HP subjects was detected. In summary, we have shown increased expression of AXIN2 and decreased expression of APC correlating with grade of dysplasia and polyp size. Hence, AXIN2 and APC should be explored as biomarker candidates for early detection of AP and HP polyps in CRC.
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Affiliation(s)
- Sama Rezasoltani
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Centre, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Mina Golmohammadi
- Gastroenterology and Liver Diseases Research Centre, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ehsan Nazemalhossini-Mojarad
- Gastroenterology and Liver Diseases Research Centre, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sina Salari
- Department of Medical Oncology, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Rezvani
- Department of Medical Oncology, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh-Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Centre, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Michael Ladomery
- Department of Applied Sciences, University of the West of England (UWE-Bristol), Bristol, UK
| | - Chris Young
- Leicester School of Allied Health Sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester, UK
| | - Fakhrosadat Anaraki
- Colorectal Division of Department of Surgery, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sarah Almond
- Department of Applied Sciences, University of the West of England (UWE-Bristol), Bristol, UK
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16
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Signal transduction pathway mutations in gastrointestinal (GI) cancers: a systematic review and meta-analysis. Sci Rep 2020; 10:18713. [PMID: 33127962 PMCID: PMC7599243 DOI: 10.1038/s41598-020-73770-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023] Open
Abstract
The present study was conducted to evaluate the prevalence of the signaling pathways mutation rate in the Gastrointestinal (GI) tract cancers in a systematic review and meta-analysis study. The study was performed based on the PRISMA criteria. Random models by confidence interval (CI: 95%) were used to calculate the pooled estimate of prevalence via Metaprop command. The pooled prevalence indices of signal transduction pathway mutations in gastric cancer, liver cancer, colorectal cancer, and pancreatic cancer were 5% (95% CI: 3–8%), 12% (95% CI: 8–18%), 17% (95% CI: 14–20%), and 20% (95% CI: 5–41%), respectively. Also, the mutation rates for Wnt pathway and MAPK pathway were calculated to be 23% (95% CI, 14–33%) and 20% (95% CI, 17–24%), respectively. Moreover, the most popular genes were APC (in Wnt pathway), KRAS (in MAPK pathway) and PIK3CA (in PI3K pathway) in the colorectal cancer, pancreatic cancer, and gastric cancer while they were beta-catenin and CTNNB1 in liver cancer. The most altered pathway was Wnt pathway followed by the MAPK pathway. In addition, pancreatic cancer was found to be higher under the pressure of mutation compared with others based on pooled prevalence analysis. Finally, APC mutations in colorectal cancer, KRAS in gastric cancer, and pancreatic cancer were mostly associated gene alterations.
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17
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Vaghari-Tabari M, Majidinia M, Moein S, Qujeq D, Asemi Z, Alemi F, Mohamadzadeh R, Targhazeh N, Safa A, Yousefi B. MicroRNAs and colorectal cancer chemoresistance: New solution for old problem. Life Sci 2020; 259:118255. [PMID: 32818543 DOI: 10.1016/j.lfs.2020.118255] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 08/01/2020] [Accepted: 08/09/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the most common gastrointestinal malignancies with a significant mortality rate. Despite the great advances in cancer treatment in the last few decades, effective treatment of CRC is still under challenge. One of the main problems associated with CRC treatment is the resistance of cancer cells to chemotherapy drugs. METHODS Many studies have been carried out to identify CRC chemoresistance mechanisms, and shed light on the role of ATP-binding cassette transporters (ABC transporters), enzymes as thymidylate synthase, some signaling pathways, and cancer stem cells (CSC) in chemoresistance and failed CRC chemotherapies. Other studies have also been recently carried out to find solutions to overcome chemoresistance. Some of these studies have identified the role of miRNAs in chemoresistance of the CRC cells and the effective use of these micro-molecules to CRC treatment. RESULTS Considering the results of these studies, more focus on miRNAs likely leads to a proper solution to overcome CRC chemoresistance. CONCLUSION The current study has reviewed the related literature while discussing the efficacy of miRNAs as potential clinical tools for overcoming CRC chemoresistance and reviewing the most important chemoresistance mechanisms in CRC cells.
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Affiliation(s)
- Mostafa Vaghari-Tabari
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Soheila Moein
- Department of Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran; Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute, Babol University of Medical Sciences, Babol, Iran; Department of Clinical Biochemistry, Babol University of Medical Sciences, Babol, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Forough Alemi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ramin Mohamadzadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nilofar Targhazeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Safa
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam; Faculty of Medicine, Zabol University of Medical Sciences, Zabol, Iran.
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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18
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Kasi A, Handa S, Bhatti S, Umar S, Bansal A, Sun W. Molecular Pathogenesis and Classification of Colorectal Carcinoma. CURRENT COLORECTAL CANCER REPORTS 2020; 16:97-106. [PMID: 32905465 DOI: 10.1007/s11888-020-00458-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Purpose of review Molecular pathways in colorectal carcinogenesis involve several complex genetic and epigenetic modulations that cause normal colonic mucosa to metamorphose into a benign polyp and subsequently into a malignant tumor. Our purpose is to recapitulate historical and recent genomic research in order to augment the understanding of colorectal cancer pathogenesis. Recent Findings In 2015, the molecular classification for colorectal cancers was unified into one system with four distinct groups, also called as consensus molecular subtypes. This led to an enhanced understanding of molecular and immune signatures which has implications on predicting the clinical behavior as well as response to different therapeutic agents. Summary In this review, we expound on the current literature as well as draw on our own experience to present the important molecular pathogenesis pathways, key genetic mutations, differences in pathogenesis of left versus right sided tumors as well as the molecular classification of colorectal cancers.
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Affiliation(s)
- Anup Kasi
- Department of Medicine, Division of Medical Oncology, Kansas University Medical Center, Kansas City, KS, U.S.A
| | - Shivani Handa
- Department of Internal Medicine, Icahn School of Medicine at Mount Sinai West & Morningside, NY, NY
| | - Sajjad Bhatti
- Department of Medicine, Division of Medical Oncology, Kansas University Medical Center, Kansas City, KS, U.S.A
| | - Shahid Umar
- Department of Medicine, Division of Surgery, Kansas University Medical Center, Kansas City, KS, U.S.A
| | - Ajay Bansal
- Department of Medicine, Division of Gastroenterology, Kansas University Medical Center, Kansas City, KS, U.S.A
| | - Weijing Sun
- Department of Medicine, Division of Medical Oncology, Kansas University Medical Center, Kansas City, KS, U.S.A
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19
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Chen Y, Zhou ZF, Wang Y. Prediction and analysis of weighted genes in isoflurane induced general anesthesia based on network analysis. Int J Neurosci 2019; 130:610-620. [PMID: 31801399 DOI: 10.1080/00207454.2019.1701452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Purpose: Isoflurane is still wildly used in the developing countries and isoflurane-induced general anesthesia gives rise to serious side effects. The aim of the present study was to investigate the molecular mechanism on isoflurane-induced general anesthesia.Materials and methods: The microarray data of GSE64617 dataset was downloaded from Gene Expression Omnibus (GEO) database. A total of 755 DEGs were identified using the limma package in the R programming language. Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes, and Genomes (KEGG) pathways enrichment were conducted for DEGs. A protein-protein interaction (PPI) network was constructed for DEGs and sensory perception related genes. A global miRNA-mRNA regulatory network was constructed to reveal the interactions in miRNA and mRNA in isoflurane treated samples. Degree was used to evaluate the importance of a gene in the PPI network and miRNA-mRNA regulatory network.Results and conclusions: HMBOX1, CSNK2A1, PNN, SRRM1, PRPF40A, APCNTRK1, MAPK1, hsa-miR-16-5p, hsa-miR-424-5p, hsa-miR-497-5p and hsa-miR-17-5p were selected as weighted genes. The expression changes were further vitrificated in the rat models by performing quantitative real-time PCR (qPCR) analysis. In conclusion, we find several weighted mRNAs and miRNAs involved in isoflurane induced general anesthesia through bioinformatics analysis.
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Affiliation(s)
- Yue Chen
- Department of Anesthesiology, Zhejiang Provincial People's Hospital, Hangzhou, China.,People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Zhen-Feng Zhou
- Department of Anesthesiology, Zhejiang Provincial People's Hospital, Hangzhou, China.,People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Yu Wang
- Department of Anesthesiology, Zhejiang Provincial People's Hospital, Hangzhou, China.,People's Hospital of Hangzhou Medical College, Hangzhou, China
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20
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Oh HH, Joo YE. Novel biomarkers for the diagnosis and prognosis of colorectal cancer. Intest Res 2019; 18:168-183. [PMID: 31766836 PMCID: PMC7206347 DOI: 10.5217/ir.2019.00080] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 10/24/2019] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is among the most common malignancies and remains a major cause of cancer-related death worldwide. Despite recent advances in surgical and multimodal therapies, the overall survival of advanced CRC patients remains very low. Cancer progression, including invasion and metastasis, is a major cause of death among CRC patients. The underlying mechanisms of action resulting in cancer progression are beginning to unravel. The reported molecular and biochemical mechanisms that might contribute to the phenotypic changes in favor of carcinogenesis include apoptosis inhibition, enhanced tumor cell proliferation, increased invasiveness, cell adhesion perturbations, angiogenesis promotion, and immune surveillance inhibition. These events may contribute to the development and progression of cancer. A biomarker is a molecule that can be detected in tissue, blood, or stool samples to allow the identification of pathological conditions such as cancer. Thus, it would be beneficial to identify reliable and practical molecular biomarkers that aid in the diagnostic and therapeutic processes of CRC. Recent research has targeted the development of biomarkers that aid in the early diagnosis and prognostic stratification of CRC. Despite that, the identification of diagnostic, prognostic, and/or predictive biomarkers remains challenging, and previously identified biomarkers might be insufficient to be clinically applicable or offer high patient acceptability. Here, we discuss recent advances in the development of molecular biomarkers for their potential usefulness in early and less-invasive diagnosis, treatment, and follow-up of CRC.
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Affiliation(s)
- Hyung-Hoon Oh
- Department of Internal Medicine, 3rd Fleet Medical Corps, Republic of Korea Navy, Yeongam, Korea
| | - Young-Eun Joo
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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21
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Zeng Q, Lei F, Chang Y, Gao Z, Wang Y, Gao Q, Niu P, Li Q. An oncogenic gene, SNRPA1, regulates PIK3R1, VEGFC, MKI67, CDK1 and other genes in colorectal cancer. Biomed Pharmacother 2019; 117:109076. [PMID: 31203132 DOI: 10.1016/j.biopha.2019.109076] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 05/26/2019] [Accepted: 06/02/2019] [Indexed: 02/07/2023] Open
Abstract
PURPOSE Colorectal cancer (CRC) caused more than 65,000 mortalities worldwide per year. It is a result of one or a combination of chromosomal instability, CpG island methylator phenotype, and microsatellite instability. SNRPA1 (small nuclear ribonucleoprotein polypeptide A) is a subunit of spliceosome complex that is involved in the RNA processing. Overexpression of SNRPA1 has been implicated in a variety of cancers including CRC. Besides from its role in mediating the RNA processing, the other aspects regarding its function in the progression of colorectal cancer have not been revealed. METHODS Herein, we combined regular gene overexpression or knock down in vitro and in vivo and microarray gene profiling analysis to decipher the unknow regulatory role of SNRPA1 in CRC. RESULTS We found SNRPA1 widely expression in many representative CRC cell lines. Knocking down expression of SNRPA1 by shRNA lentivirus inhibited the cell proliferation in vitro and impaired tumor formation from implanted CRC cells transduced with SNRPA1 silencing shRNA lentivirus in nude mice. It also promoted the cell apoptosis by upregulating the caspase 3/7 activity. Additional microarray gene profiling analysis uncovered the gene interaction network of SNRPA1, special focus was placed on its association with tumor suppressor or oncogenes. CONCLUSIONS According to the results of gene interaction network as well as qRT-PCR verification, it revealed that SNPRA1 regulates PIK3R1, VEGFC, MKI67, CDK1 in CRC. These novel findings identified new roles played by SNRPA1 in the progression of CRC and it may become a potential therapeutic target in the treatment of CRC.
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Affiliation(s)
- Qingmin Zeng
- National Clinical Research Center for Cancer & Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, China
| | - Fuming Lei
- Department of General Surgery, Gastrointestinal Surgery, Peking University Shougang Hospital, Jin Yuan Zhuang Road No. 9, Beijing 100144, China
| | - Yigang Chang
- National Clinical Research Center for Cancer & Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, China
| | - Zhaoya Gao
- Department of General Surgery, Gastrointestinal Surgery, Peking University Shougang Hospital, Jin Yuan Zhuang Road No. 9, Beijing 100144, China
| | - Yanzhao Wang
- Department of General Surgery, Gastrointestinal Surgery, Peking University Shougang Hospital, Jin Yuan Zhuang Road No. 9, Beijing 100144, China
| | - Qingkun Gao
- Department of General Surgery, Gastrointestinal Surgery, Peking University Shougang Hospital, Jin Yuan Zhuang Road No. 9, Beijing 100144, China
| | - Pengfei Niu
- Department of General Surgery, Gastrointestinal Surgery, Peking University Shougang Hospital, Jin Yuan Zhuang Road No. 9, Beijing 100144, China
| | - Qiang Li
- National Clinical Research Center for Cancer & Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, China.
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22
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Zhang X, Liu R, Zhao N, Ji S, Hao C, Cui W, Zhang R, Hao J. Sohlh2 inhibits breast cancer cell proliferation by suppressing Wnt/β‐catenin signaling pathway. Mol Carcinog 2019; 58:1008-1018. [DOI: 10.1002/mc.22989] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 01/10/2019] [Accepted: 01/30/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Xiaoli Zhang
- Key Laboratory for Experimental Teratology of the Ministry of EducationDepartment of Human Anatomy and Histology and EmbryologySchool of Basic Medical ScienceShandong UniversityJinanPR China
| | - Ruihua Liu
- Department of UltrasoundYantai Yuhuangding HospitalYantaiPR China
| | - Na Zhao
- Key Laboratory for Experimental Teratology of the Ministry of EducationDepartment of Human Anatomy and Histology and EmbryologySchool of Basic Medical ScienceShandong UniversityJinanPR China
| | - Shufang Ji
- Key Laboratory for Experimental Teratology of the Ministry of EducationDepartment of Human Anatomy and Histology and EmbryologySchool of Basic Medical ScienceShandong UniversityJinanPR China
| | - Chunyan Hao
- Department of PathologySchool of Basic Medical ScienceShandong UniversityJinanPR China
| | - Weiwei Cui
- Key Laboratory for Experimental Teratology of the Ministry of EducationDepartment of Human Anatomy and Histology and EmbryologySchool of Basic Medical ScienceShandong UniversityJinanPR China
| | - Ruihong Zhang
- Key Laboratory for Experimental Teratology of the Ministry of EducationDepartment of Human Anatomy and Histology and EmbryologySchool of Basic Medical ScienceShandong UniversityJinanPR China
| | - Jing Hao
- Key Laboratory for Experimental Teratology of the Ministry of EducationDepartment of Human Anatomy and Histology and EmbryologySchool of Basic Medical ScienceShandong UniversityJinanPR China
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An Appraisal of Pumpkin Seed Extract in 1, 2-Dimethylhydrazine Induced Colon Cancer in Wistar Rats. J Toxicol 2018; 2018:6086490. [PMID: 30245714 PMCID: PMC6139218 DOI: 10.1155/2018/6086490] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/23/2018] [Accepted: 08/09/2018] [Indexed: 11/28/2022] Open
Abstract
Background Cancer is one of the most important public health burdens in developed and developing countries. Colon cancer (CC) is the sixth most common cause of death in India and third most important cause in developed countries. For treating cancer, several synthetic agents are available but they cause side effects. Therefore, there is a need to investigate plant derived anticancer agents with lesser side effects. In this direction, we have made an attempt to unravel the potential of pumpkin seed extract for treating colon cancer. Objective The objective of this study was to evaluate pumpkin seed extract as prophylactic and treatment for 1, 2-dimethylhydrazine (DMH) induced colon cancer in Wistar rats. Materials and Methods Male Wistar rats were divided into seven groups, namely, control, DMH (disease control), 5-Flurouracil (standard), treatment groups (100mg/kg and 200 mg/kg), and pretreatment groups (100mg/kg and 200 mg/kg) with pumpkin seed extract. The animals were euthanised at the end of study and colons were examined. Results A significant difference in the aberrant crypt foci (ACF) number in all treatment groups compared to control and DMH groups were noted. Pretreatment group at a dose of 200 mg/kg showed a significant decrease in the colon length/weight ratio. Pretreatment groups showed a significant change in the colonic glutathione (GSH) and superoxide dismutase (SOD) levels when compared to control and DMH control. The nitrite content was decreased in treatment group 200 mg/kg at 5.203±0.852 when compared to DMH control at 8.506±3.866. All treatment groups demonstrated decreased hyperplasia and ACF in histology. Conclusion Pumpkin seed may prevent the risk of CC when consumed in dietary proportions.
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Duan FX, Gu GL, Yang HR, Yu PF, Zhang Z. Must Peutz-Jeghers syndrome patients have the LKB1/STK11 gene mutation? A case report and review of the literature. World J Clin Cases 2018; 6:224-232. [PMID: 30148152 PMCID: PMC6107527 DOI: 10.12998/wjcc.v6.i8.224] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/23/2018] [Accepted: 05/13/2018] [Indexed: 02/05/2023] Open
Abstract
Peutz-Jeghers syndrome (PJS) is an autosomal dominant inherited disease, which is characterized by mucocutaneous pigmentation and multiple gastrointestinal hamartoma polyps. The germline mutation of LKB1/STK11 gene on chromosome 19p13.3 is considered to be the hereditary cause of PJS. However, must a patient with PJS have the LKB1/STK11 gene mutation? We here report a case of a male patient who had typical manifestations of PJS and a definite family history, but did not have LKB1/STK11 gene mutation. By means of high-throughput sequencing technology, only mutations in APC gene (c.6662T > C: p.Met2221Thr) and MSH6 gene (c.3488A > T: p.Glu1163Val) were detected. The missense mutations in APC and MSH6 gene may lead to abnormalities in structure and function of their expression products, and may result in the occurrence of PJS. This study suggests that some other genetic disorders may cause PJS besides LKB1/STK11 gene mutation.
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Affiliation(s)
- Fu-Xiao Duan
- Department of General Surgery, Air Force General Hospital of Chinese PLA, Beijing 100142, China
| | - Guo-Li Gu
- Department of General Surgery, Air Force General Hospital of Chinese PLA, Beijing 100142, China
| | - Hai-Rui Yang
- Department of General Surgery, Air Force General Hospital of Chinese PLA, Beijing 100142, China
| | - Peng-Fei Yu
- Department of General Surgery, Air Force General Hospital of Chinese PLA, Beijing 100142, China
| | - Zhi Zhang
- Department of General Surgery, Air Force General Hospital of Chinese PLA, Beijing 100142, China
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Young S, Golzarian J. Primary Tumor Location in Colorectal Cancer: Comparison of Right- and Left-Sided Colorectal Cancer Characteristics for the Interventional Radiologist. Cardiovasc Intervent Radiol 2018; 41:1819-1825. [PMID: 29946943 DOI: 10.1007/s00270-018-2014-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 06/14/2018] [Indexed: 01/01/2023]
Abstract
One area which has emerged as an important factor for predicting molecular profile and treatment outcomes in metastatic colorectal cancer (mCRC) is primary tumor location. The importance of molecular characteristics of colorectal cancer has been firmly established in terms of prognosis and treatment algorithms for many years. Recent studies have also suggested that molecular profiles are important in locoregional therapies as well, with some data suggesting changes in treatment algorithms based on tumor location. Therefore, it is important for interventional radiologists to understand the basic molecular characteristics and development pathways of mCRC. Here, these disease characteristics are reviewed and the differences in left- versus right-sided primary tumor location are explored.
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Affiliation(s)
- Shamar Young
- Department of Radiology, University of Minnesota, 420 Delaware St SE, MMC 292, Minneapolis, MN, 55455, USA.
| | - Jafar Golzarian
- Department of Radiology, University of Minnesota, 420 Delaware St SE, MMC 292, Minneapolis, MN, 55455, USA
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26
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Tan SC. Low penetrance genetic polymorphisms as potential biomarkers for colorectal cancer predisposition. J Gene Med 2018; 20:e3010. [PMID: 29424105 DOI: 10.1002/jgm.3010] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/12/2018] [Accepted: 01/19/2018] [Indexed: 12/14/2022] Open
Abstract
Colorectal cancer is a leading form of cancer in both males and females. Early detection of individuals at risk of colorectal cancer allows proper treatment and management of the disease to be implemented, which can potentially reduce the burden of colorectal cancer incidence, morbidity and mortality. In recent years, the role of genetic susceptibility factors in mediating predisposition to colorectal cancer has become more and more apparent. Identification of high-frequency, low-penetrance genetic polymorphisms associated with the cancer has therefore emerged as an important approach which can potentially aid prediction of colorectal cancer risk. However, the overwhelming amount of genetic epidemiology data generated over the past decades has made it difficult for one to assimilate the information and determine the exact genetic polymorphisms that can potentially be used as biomarkers for colorectal cancer. This review comprehensively consolidates, based primarily on results from meta-analyses, the recent progresses in the search of colorectal cancer-associated genetic polymorphisms, and discusses the possible mechanisms involved.
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Affiliation(s)
- Shing Cheng Tan
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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27
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Xu D, Yuan L, Liu X, Li M, Zhang F, Gu XY, Zhang D, Yang Y, Cui B, Tong J, Zhou J, Yu Z. EphB6 overexpression and Apc mutation together promote colorectal cancer. Oncotarget 2018; 7:31111-21. [PMID: 27145271 PMCID: PMC5058743 DOI: 10.18632/oncotarget.9080] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 04/10/2016] [Indexed: 12/22/2022] Open
Abstract
The erythropoietin-producing hepatocyte (Eph) family tyrosine kinases play important roles in tumorigenesis and cancer aggression. In this study, we investigated the role of EphB6 in oncogenic transformation of colorectal epithelial cells in vitro and in vivo. EphB6 is upregulated in human colorectal cancer (CRC) tissues as compared to normal tissues, and its overexpression promotes proliferation, migration and invasion by IMCE colorectal adenoma cells, in which one Apc allele is mutated. EphB6 overexpression together with Apc mutation leads to the development of colorectal tumors in vivo. Expression microarrays using mRNAs and lncRNAs isolated from EphB6-overexpresssing IMCE and control cells revealed a large number of dysregulated genes involved in cancer-related functions and pathways. The present study is the first to demonstrate that EphB6 overexpression together with Apc gene mutations may enhance proliferation, invasion and metastasis by colorectal epithelial cells. Microarray data and pathway analysis of differentially expressed genes provided insight into possible EphB6-regulated mechanisms promoting tumorigenesis and cancer progression. EphB6 overexpression may represent a novel, effective biomarker predictive of cell proliferation, invasion and metastasis patterns in CRC tumors.
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Affiliation(s)
- Dan Xu
- Digestive System Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Liang Yuan
- Department of Colorectal Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Xin Liu
- Department of Colorectal Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Mingqi Li
- Department of Colorectal Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Fubin Zhang
- Department of Colorectal Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Xin Yue Gu
- Department of Colorectal Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Dongwei Zhang
- Department of Surgery, The Second Affiliated of Harbin Medical University, Harbin, China
| | - Youlin Yang
- Digestive System Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Binbin Cui
- Department of Colorectal Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Jinxue Tong
- Department of Colorectal Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
| | - Jin Zhou
- Division of Hematology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhiwei Yu
- Department of Colorectal Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
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Abdul SN, Ab Mutalib NS, Sean KS, Syafruddin SE, Ishak M, Sagap I, Mazlan L, Rose IM, Abu N, Mokhtar NM, Jamal R. Molecular Characterization of Somatic Alterations in Dukes' B and C Colorectal Cancers by Targeted Sequencing. Front Pharmacol 2017; 8:465. [PMID: 28769798 PMCID: PMC5513919 DOI: 10.3389/fphar.2017.00465] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 06/30/2017] [Indexed: 12/12/2022] Open
Abstract
Despite global progress in research, improved screening and refined treatment strategies, colorectal cancer (CRC) remains as the third most common malignancy. As each type of cancer is different and exhibits unique alteration patterns, identifying and characterizing gene alterations in CRC that may serve as biomarkers might help to improve diagnosis, prognosis and predict potential response to therapy. With the emergence of next generation sequencing technologies (NGS), it is now possible to extensively and rapidly identify the gene profile of individual tumors. In this study, we aimed to identify actionable somatic alterations in Dukes’ B and C in CRC via NGS. Targeted sequencing of 409 cancer-related genes using the Ion AmpliseqTM Comprehensive Cancer Panel was performed on genomic DNA obtained from paired fresh frozen tissues, cancer and normal, of Dukes’ B (n = 10) and Dukes’ C (n = 9) CRC. The sequencing results were analyzed using Torrent Suite, annotated using ANNOVAR and validated using Sanger sequencing. A total of 141 somatic non-synonymous sequence variations were identified in 86 genes. Among these, 64 variants (45%) were predicted to be deleterious, 38 variants (27%) possibly deleterious while the other 39 variants (28%) have low or neutral protein impact. Seventeen genes have alterations with frequencies of ≥10% in the patient cohort and with 14 overlapped genes in both Dukes’ B and C. The adenomatous polyposis coli gene (APC) was the most frequently altered gene in both groups (n = 6 in Dukes’ B and C). In addition, TP53 was more frequently altered in Dukes’ C (n = 7) compared to Dukes’ B (n = 4). Ten variants in APC, namely p.R283∗, p.N778fs, p.R805∗, p.Y935fs, p.E941fs, p.E1057∗, p.I1401fs, p.Q1378∗, p.E1379∗, and p.A1485fs were predicted to be driver variants. APC remains as the most frequently altered gene in the intermediate stages of CRC. Wnt signaling pathway is the major affected pathway followed by P53, RAS, TGF-β, and PI3K signaling. We reported the alteration profiles in each of the patient which has the potential to affect the clinical decision. We believe that this study will add further to the understanding of CRC molecular landscape.
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Affiliation(s)
- Shafina-Nadiawati Abdul
- UKM Medical Molecular Biology InstituteUniversiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | | | - Saiful E Syafruddin
- UKM Medical Molecular Biology InstituteUniversiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Muhiddin Ishak
- UKM Medical Molecular Biology InstituteUniversiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ismail Sagap
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan MalaysiaKuala Lumpur, Malaysia
| | - Luqman Mazlan
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan MalaysiaKuala Lumpur, Malaysia
| | - Isa M Rose
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan MalaysiaKuala Lumpur, Malaysia
| | - Nadiah Abu
- UKM Medical Molecular Biology InstituteUniversiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Norfilza M Mokhtar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan MalaysiaKuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology InstituteUniversiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Abstract
Colorectal cancers develop through at least 3 major pathways, including chromosomal instability, mismatch repair, and methylator phenotype. These pathways can coexist in a single individual and occur in both sporadic and inherited colorectal cancers. In spite of the unique molecular and genetic signatures of colorectal cancers, nonspecific chemotherapy based on the antineoplastic effects of 5-fluorouracil is the cornerstone of therapy for stage III and some stage II disease. Techniques to recognize colorectal cancer at the molecular level have facilitated development of new signature drugs designed to inhibit the unique pathways of colorectal cancer growth and immunity.
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Singh MP, Rai S, Suyal S, Singh SK, Singh NK, Agarwal A, Srivastava S. Genetic and epigenetic markers in colorectal cancer screening: recent advances. Expert Rev Mol Diagn 2017; 17:665-685. [PMID: 28562109 DOI: 10.1080/14737159.2017.1337511] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Colorectal cancer (CRC) is a heterogenous disease which develops from benign intraepithelial lesions known as adenomas to malignant carcinomas. Acquired alterations in Wnt signaling, TGFβ, MAPK pathway genes and clonal propagation of altered cells are responsible for this transformation. Detection of adenomas or early stage cancer in asymptomatic patients and better prognostic and predictive markers is important for improving the clinical management of CRC. Area covered: In this review, the authors have evaluated the potential of genetic and epigenetic alterations as markers for early detection, prognosis and therapeutic predictive potential in the context of CRC. We have discussed molecular heterogeneity present in CRC and its correlation to prognosis and response to therapy. Expert commentary: Molecular marker based CRC screening methods still fail to gain trust of clinicians. Invasive screening methods, molecular heterogeneity, chemoresistance and low quality test samples are some key challenges which need to be addressed in the present context. New sequencing technologies and integrated omics data analysis of individual or population cohort results in GWAS. MPE studies following a GWAS could be future line of research to establish accurate correlations between CRC and its risk factors. This strategy would identify most reliable biomarkers for CRC screening and management.
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Affiliation(s)
- Manish Pratap Singh
- a Department of Biotechnology , Motilal Nehru National Institute of Technology (MNNIT) Allahabad , India
| | - Sandhya Rai
- a Department of Biotechnology , Motilal Nehru National Institute of Technology (MNNIT) Allahabad , India
| | - Shradha Suyal
- a Department of Biotechnology , Motilal Nehru National Institute of Technology (MNNIT) Allahabad , India
| | - Sunil Kumar Singh
- a Department of Biotechnology , Motilal Nehru National Institute of Technology (MNNIT) Allahabad , India
| | - Nand Kumar Singh
- a Department of Biotechnology , Motilal Nehru National Institute of Technology (MNNIT) Allahabad , India
| | - Akash Agarwal
- b Department of Surgical Oncology , Dr. Ram Manohar Lohia Institute of Medical Sciences (DRMLIMS) , Lucknow , India
| | - Sameer Srivastava
- a Department of Biotechnology , Motilal Nehru National Institute of Technology (MNNIT) Allahabad , India
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31
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Novel mutations and phenotypic associations identified through APC, MUTYH, NTHL1, POLD1, POLE gene analysis in Indian Familial Adenomatous Polyposis cohort. Sci Rep 2017; 7:2214. [PMID: 28533537 PMCID: PMC5440391 DOI: 10.1038/s41598-017-02319-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 04/10/2017] [Indexed: 02/07/2023] Open
Abstract
Colo-Rectal Cancer is a common cancer worldwide with 5-10% cases being hereditary. Familial Adenomatous Polyposis (FAP) syndrome is due to germline mutations in the APC or rarely MUTYH gene. NTHL1, POLD1, POLE have been recently reported in previously unexplained FAP cases. Unlike the Caucasian population, FAP phenotype and its genotypic associations have not been widely studied in several geoethnic groups. We report the first FAP cohort from South Asia and the only non-Caucasian cohort with comprehensive analysis of APC, MUTYH, NTHL1, POLD1, POLE genes. In this cohort of 112 individuals from 53 FAP families, we detected germline APC mutations in 60 individuals (45 families) and biallelic MUTYH mutations in 4 individuals (2 families). No NTHL1, POLD1, POLE mutations were identified. Fifteen novel APC mutations and a new Indian APC mutational hotspot at codon 935 were identified. Eight very rare FAP phenotype or phenotypes rarely associated with mutations outside specific APC regions were observed. APC genotype-phenotype association studies in different geo-ethnic groups can enrich the existing knowledge about phenotypic consequences of distinct APC mutations and guide counseling and risk management in different populations. A stepwise cost-effective mutation screening approach is proposed for genetic testing of south Asian FAP patients.
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Hasebe T, Matsukawa J, Ringus D, Miyoshi J, Hart J, Kaneko A, Yamamoto M, Kono T, Fujiya M, Kohgo Y, Wang CZ, Yuan CS, Bissonnette M, Musch MW, Chang EB. Daikenchuto (TU-100) Suppresses Tumor Development in the Azoxymethane and APC min/+ Mouse Models of Experimental Colon Cancer. Phytother Res 2017; 31:90-99. [PMID: 27730672 PMCID: PMC5590753 DOI: 10.1002/ptr.5735] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 08/26/2016] [Accepted: 09/18/2016] [Indexed: 02/06/2023]
Abstract
Chemopreventative properties of traditional medicines and underlying mechanisms of action are incompletely investigated. This study demonstrates that dietary daikenchuto (TU-100), comprised of ginger, ginseng, and Japanese pepper effectively suppresses intestinal tumor development and progression in the azoxymethane (AOM) and APCmin/+ mouse models. For the AOM model, TU-100 was provided after the first of six biweekly AOM injections. Mice were sacrificed at 30 weeks. APCmin/+ mice were fed diet without or with TU-100 starting at 6 weeks, and sacrificed at 24 weeks. In both models, dietary TU-100 decreased tumor size. In APC min/+ mice, the number of small intestinal tumors was significantly decreased. In the AOM model, both TU-100 and Japanese ginseng decreased colon tumor numbers. Decreased Ki-67 and β-catenin immunostaining and activation of numerous transduction pathways involved in tumor initiation and progression were observed. EGF receptor expression and stimulation/phosphorylation in vitro were investigated in C2BBe1 cells. TU-100, ginger, and 6-gingerol suppressed EGF receptor induced Akt activation. TU-100 and ginseng and to a lesser extent ginger or 6-gingerol inhibited EGF ERK1/2 activation. TU-100 and some of its components and metabolites of these components inhibit tumor progression in two mouse models of colon cancer by blocking downstream pathways of EGF receptor activation. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Takumu Hasebe
- Department of Medicine, Knapp Center for Biomedical Discovery, University of Chicago, Chicago, IL, USA
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Jun Matsukawa
- Department of Medicine, Knapp Center for Biomedical Discovery, University of Chicago, Chicago, IL, USA
| | - Daina Ringus
- Department of Medicine, Knapp Center for Biomedical Discovery, University of Chicago, Chicago, IL, USA
| | - Jun Miyoshi
- Department of Medicine, Knapp Center for Biomedical Discovery, University of Chicago, Chicago, IL, USA
| | - John Hart
- Department of Pathology, University of Chicago, Chicago, IL, USA
| | - Atsushi Kaneko
- Tsumura Research Laboratories, Tsumura and Co., Ami, Ibaraki, Japan
| | | | - Toru Kono
- Center for Clinical and Biomedical Research, Sapporo Higashi Tokushukai Hospital, Sapporo, Hokkaido, Japan
- Division of Gastroenterologic and General Surgery, Department of Surgery, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Mikihiro Fujiya
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yutaka Kohgo
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Chong-Zi Wang
- Tang Center for Herbal Medicine Research, Department of Anesthesia and Critical Care, University of Chicago, Chicago, IL, USA
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research, Department of Anesthesia and Critical Care, University of Chicago, Chicago, IL, USA
| | - Marc Bissonnette
- Department of Medicine, Knapp Center for Biomedical Discovery, University of Chicago, Chicago, IL, USA
| | - Mark W. Musch
- Department of Medicine, Knapp Center for Biomedical Discovery, University of Chicago, Chicago, IL, USA
| | - Eugene B. Chang
- Department of Medicine, Knapp Center for Biomedical Discovery, University of Chicago, Chicago, IL, USA
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Eshghifar N, Farrokhi N, Naji T, Zali M. Tumor suppressor genes in familial adenomatous polyposis. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2017; 10:3-13. [PMID: 28331559 PMCID: PMC5346818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Colorectal cancer (CRC) is mostly due to a series of genetic alterations that are being greatly under the influence of the environmental factors. These changes, mutational or epigenetic modifications at transcriptional forefront and/or post-transcriptional effects via miRNAs, include inactivation and the conversion of proto-oncogene to oncogenes, and/or inactivation of tumor suppressor genes (TSG). Here, a thorough review was carried out on the role of TSGs with the focus on the APC as the master regulator, mutated genes and mal-/dysfunctional pathways that lead to one type of hereditary form of the CRC; namely familial adenomatous polyposis (FAP). This review provides a venue towards defining candidate genes that can be used as new PCR-based markers for early diagnosis of FAP. In addition to diagnosis, defining the modes of genetic alterations will open door towards genome editing to either suppress the disease or reduce its progression during the course of action.
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Affiliation(s)
- Nahal Eshghifar
- Department of Molecular and Cellular Sciences, Faculty of Advanced Sciences & Technology, Pharmaceutical Science Branch, Islamic Azad University, Tehran, Iran
| | - Naser Farrokhi
- Department of Plant Biology & Biotechnology, Faculty of Biosciences & Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Tahereh Naji
- Department of Molecular and Cellular Sciences, Faculty of Advanced Sciences & Technology, Pharmaceutical Science Branch, Islamic Azad University, Tehran, Iran
| | - Mohammadreza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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ABT-888 and quinacrine induced apoptosis in metastatic breast cancer stem cells by inhibiting base excision repair via adenomatous polyposis coli. DNA Repair (Amst) 2016; 45:44-55. [DOI: 10.1016/j.dnarep.2016.05.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 05/23/2016] [Accepted: 05/27/2016] [Indexed: 01/21/2023]
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Interaction between APC and Fen1 during breast carcinogenesis. DNA Repair (Amst) 2016; 41:54-62. [PMID: 27088617 DOI: 10.1016/j.dnarep.2016.04.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 04/06/2016] [Indexed: 02/07/2023]
Abstract
Aberrant DNA base excision repair (BER) contributes to malignant transformation. However, inter-individual variations in DNA repair capacity plays a key role in modifying breast cancer risk. We review here emerging evidence that two proteins involved in BER - adenomatous polyposis coli (APC) and flap endonuclease 1 (Fen1) - promote the development of breast cancer through novel mechanisms. APC and Fen1 expression and interaction is increased in breast tumors versus normal cells, APC interacts with and blocks Fen1 activity in Pol-β-directed LP-BER, and abrogation of LP-BER is linked with cigarette smoke condensate-induced transformation of normal breast epithelial cells. Carcinogens increase expression of APC and Fen1 in spontaneously immortalized human breast epithelial cells, human colon cancer cells, and mouse embryonic fibroblasts. Since APC and Fen1 are tumor suppressors, an increase in their levels could protect against carcinogenesis; however, this does not seem to be the case. Elevated Fen1 levels in breast and lung cancer cells may reflect the enhanced proliferation of cancer cells or increased DNA damage in cancer cells compared to normal cells. Inactivation of the tumor suppressor functions of APC and Fen1 is due to their interaction, which may act as a susceptibility factor for breast cancer. The increased interaction of APC and Fen1 may occur due to polypmorphic and/or mutational variation in these genes. Screening of APC and Fen1 polymorphic and/or mutational variations and APC/Fen1 interaction may permit assessment of individual DNA repair capability and the risk for breast cancer development. Such individuals might lower their breast cancer risk by reducing exposure to carcinogens. Stratifying individuals according to susceptibility would greatly assist epidemiologic studies of the impact of suspected environmental carcinogens. Additionally, a mechanistic understanding of the interaction of APC and Fen1 may provide the basis for developing new and effective targeted chemopreventive and chemotherapeutic agents.
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Hassen S, Ali AA, Kilaparty SP, Al-Anbaky QA, Majeed W, Boman BM, Fields JZ, Ali N. Interdependence of DNA mismatch repair proteins MLH1 and MSH2 in apoptosis in human colorectal carcinoma cell lines. Mol Cell Biochem 2016; 412:297-305. [PMID: 26728996 DOI: 10.1007/s11010-015-2636-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 12/23/2015] [Indexed: 01/06/2023]
Abstract
The mammalian DNA mismatch repair (MMR) system consists of a number of proteins that play important roles in repair of base pair mismatch mutations and in maintenance of genomic integrity. A defect in this system can cause genetic instability, which can lead to carcinogenesis. For instance, a germline mutation in one of the mismatch repair proteins, especially MLH1 or MSH2, is responsible for hereditary non-polyposis colorectal cancer. These MMR proteins also play an important role in the induction of apoptosis. Accordingly, altered expression of or a defect in MLH1 or MSH2 may confer resistance to anti-cancer drugs used in chemotherapy. We hypothesized that the ability of these two MMR proteins to regulate apoptosis are interdependent. Moreover, a defect in either one may confer resistance to chemotherapy by an inability to trigger apoptosis. To this end, we studied three cell lines-SW480, LoVo, and HTC116. These cell lines were selected based on their differential expression of MLH1 and MSH2 proteins. SW480 expresses both MLH1 and MSH2; LoVo expresses only MLH1 but not MSH2; HCT116 expresses only MSH2 but not MLH1 protein. MTT assays, a measure of cytotoxicity, showed that there were different cytotoxic effects of an anti-cancer drug, etoposide, on these cell lines, effects that were correlated with the MMR status of the cells. Cells that are deficient in MLH1 protein (HCT116 cells) were resistant to the drug. Cells that express both MLH1 and MSH2 proteins (SW480 cells) showed caspase-3 cleavage, an indicator of apoptosis. Cells that lack MLH1 (HCT116 cells) did not show any caspase-3 cleavage. Expression of full-length MLH1 protein was decreased in MMR proficient (SW480) cells during apoptosis; it remained unchanged in cells that lack MSH2 (LoVo cells). The expression of MSH2 protein remained unchanged during apoptosis both in MMR proficient (SW480) and deficient (HCT116) cells. Studies on translocation of MLH1 protein from nucleus to cytosolic fraction, an indicator of apoptosis, showed that MLH1 translocation only occurred in MMR proficient (SW480) cells upon induction of apoptosis further suggested a MSH2 dependent role of MLH1 in apoptosis. These data suggest a role of MLH1 in mediation of apoptosis in a MSH2-dependent manner. Taken together, our data supported an interdependence of mismatch repair proteins, particularly MLH1 and MSH2, in the mediation of apoptosis in human colorectal carcinoma cell lines.
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Affiliation(s)
- Samar Hassen
- Department of Biology, College of Arts, Letters and Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR, 72204, USA
| | - Akhtar A Ali
- Department of Biology, College of Arts, Letters and Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR, 72204, USA.,CATX Inc., Gladwyne, PA, 19035, USA
| | - Surya P Kilaparty
- Department of Biology, College of Arts, Letters and Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR, 72204, USA
| | - Qudes A Al-Anbaky
- Department of Biology, College of Arts, Letters and Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR, 72204, USA
| | - Waqar Majeed
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, 72204, USA
| | - Bruce M Boman
- Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Kimmel Cancer Center, Philadelphia, PA, 19107, USA.,Center for Translational Cancer Research, University of Delaware, Helen F Graham Cancer Center, Newark, DE, 19713, USA.,CATX Inc., Gladwyne, PA, 19035, USA
| | | | - Nawab Ali
- Department of Biology, College of Arts, Letters and Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR, 72204, USA.
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BAG3 regulates cell proliferation, migration, and invasion in human colorectal cancer. Tumour Biol 2015; 37:5591-7. [PMID: 26577854 DOI: 10.1007/s13277-015-4403-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 11/05/2015] [Indexed: 10/22/2022] Open
Abstract
Bcl2-associated athanogene 3 (BAG3) has been reported to be elevated in various tumors. However, it is unclear whether BAG3 has a functional role in the initiation and progression of colorectal cancer (CRC). Here, we collected CRC samples and cell lines to validate the pathway by using gene and protein assays. RT-PCR showed that the expression of BAG3 mRNA in CRC tissues was obviously higher than that in non-tumor tissues (p < 0.001). Immunohistochemical analysis showed that immunoreactivity of BAG3 was found in most CRC tissues and strongly correlated with TNM stage (p = 0.001), differentiation (p = 0.003), and metastasis (p = 0.010). Low expression of BAG3 in HCT-8 significantly reduced cellular proliferation, migration, and invasion. The analysis of in vitro cell showed that HCT-8 cells were exposed to si-BAG3, and its growth was inhibited depending on modulation of cell cycle G1/S checkpoints and cell cycle regulators, involving cyclin D1, cyclin A2, and cyclin B1. Furthermore, suppression of the epithelial-mesenchymal transition (EMT) by si-BAG3 is linked to the decreased expression of E-cadherin and the increased expression of N-cadherin, vimentin, and MMP9. In conclusion, in the present study, we demonstrated that BAG3 overexpression plays a critical role in cell proliferation, migration, and invasion of colorectal cancer. Our data suggests targeted inhibition of BAG3 may be useful for patients with CRC.
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Das D, Preet R, Mohapatra P, Satapathy SR, Siddharth S, Tamir T, Jain V, Bharatam PV, Wyatt MD, Kundu CN. 5-Fluorouracil mediated anti-cancer activity in colon cancer cells is through the induction of Adenomatous Polyposis Coli: Implication of the long-patch base excision repair pathway. DNA Repair (Amst) 2015; 24:15-25. [PMID: 25460919 DOI: 10.1016/j.dnarep.2014.10.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/14/2014] [Accepted: 10/15/2014] [Indexed: 12/18/2022]
Abstract
Colorectal cancer (CRC) patients with APC mutations do not benefit from 5-FU therapy. It was reported that APC physically interacts with POLβ and FEN1, thus blocking LP-BER via APC's DNA repair inhibitory (DRI) domain in vitro. The aim of this study was to elucidate how APC status affects BER and the response of CRC to 5-FU. HCT-116, HT-29, and LOVO cells varying in APC status were treated with 5-FU to evaluate expression, repair, and survival responses. HCT-116 expresses wild-type APC; HT-29 expresses an APC mutant that contains DRI domain; LOVO expresses an APC mutant lacking DRI domain. 5-FU increased the expression of APC and decreased the expression of FEN1 in HCT-116 and HT-29 cells, which were sensitized to 5-FU when compared to LOVO cells. Knockdown of APC in HCT-116 rendered cells resistant to 5-FU, and FEN1 levels remained unchanged. Re-expression of full-length APC in LOVO cells caused sensitivity to 5-FU, and decreased expression of FEN1. These knockdown and addback studies confirmed that the DRI domain is necessary for the APC-mediated reduction in LP-BER and 5-FU. Modelling studies showed that 5-FU can interact with the DRI domain of APC via hydrogen bonding and hydrophobic interactions. 5-FU resistance in CRC occurs with mutations in APC that disrupt or eliminate the DRI domain's interaction with LP-BER. Understanding the type of APC mutation should better predict 5-FU resistance in CRC than simply characterizing APC status as wild-type or mutant.
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Affiliation(s)
- Dipon Das
- KIIT School of Biotechnology, KIIT University, Campus-11, Patia, Bhubaneswar, Orissa 751024, India
| | - Ranjan Preet
- KIIT School of Biotechnology, KIIT University, Campus-11, Patia, Bhubaneswar, Orissa 751024, India
| | - Purusottam Mohapatra
- KIIT School of Biotechnology, KIIT University, Campus-11, Patia, Bhubaneswar, Orissa 751024, India
| | - Shakti Ranjan Satapathy
- KIIT School of Biotechnology, KIIT University, Campus-11, Patia, Bhubaneswar, Orissa 751024, India
| | - Sumit Siddharth
- KIIT School of Biotechnology, KIIT University, Campus-11, Patia, Bhubaneswar, Orissa 751024, India
| | - Tigist Tamir
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, SC, USA
| | - Vaibhav Jain
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali, Punjab 160062, India
| | - Prasad V Bharatam
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali, Punjab 160062, India
| | - Michael D Wyatt
- Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, SC, USA
| | - Chanakya Nath Kundu
- KIIT School of Biotechnology, KIIT University, Campus-11, Patia, Bhubaneswar, Orissa 751024, India.
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Vriend J, Ghavami S, Marzban H. The role of the ubiquitin proteasome system in cerebellar development and medulloblastoma. Mol Brain 2015; 8:64. [PMID: 26475605 PMCID: PMC4609148 DOI: 10.1186/s13041-015-0155-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 10/08/2015] [Indexed: 01/12/2023] Open
Abstract
Cerebellar granule cells precursors are derived from the upper rhombic lip and migrate tangentially independent of glia along the subpial stream pathway to form the external germinal zone. Postnatally, granule cells migrate from the external germinal zone radially through the Purkinje cell layer, guided by Bergmann glia fibers, to the internal granular cell layer. Medulloblastomas (MBs) are the most common malignant childhood brain tumor. Many of these tumors develop from precursor cells of the embryonic rhombic lips. Four main groups of MB are recognized. The WNT group of MBs arise primarily from the lower rhombic lip and embryonic brainstem. The SHH group of MBs originate from cerebellar granule cell precursors in the external germinal zone of the embryonic cerebellum. The cellular origins of type 3 and type 4 MBs are not clear. Several ubiquitin ligases are revealed to be significant factors in development of the cerebellum as well as in the initiation and maintenance of MBs. Proteasome dysfunction at a critical stage of development may be a major factor in determining whether progenitor cells which are destined to become granule cells differentiate normally or become MB cells. We propose the hypothesis that proteasomal activity is essential to regulate the critical transition between proliferating granule cells and differentiated granule cells and that proteasome dysfunction may lead to MB. Proteasome dysfunction could also account for various mutations in MBs resulting from deficiencies in DNA checkpoint and repair mechanisms prior to development of MBs. Data showing a role for the ubiquitin ligases β-TrCP, FBW7, Huwe1, and SKP2 in MBs suggest the possibility of a classification of MBs based on the expression (over expression or under expression) of specific ubiquitin ligases which function as oncogenes, tumor suppressors or cell cycle regulators.
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Affiliation(s)
- Jerry Vriend
- Department of Human Anatomy and Cell Science, Rm129, BMSB, 745 Bannatyne Avenue, Winnipeg, MB, Canada
| | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, Rm129, BMSB, 745 Bannatyne Avenue, Winnipeg, MB, Canada.,Children's Hospital Research Institute of Manitoba (CHRIM), College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 0J9, Canada
| | - Hassan Marzban
- Department of Human Anatomy and Cell Science, Rm129, BMSB, 745 Bannatyne Avenue, Winnipeg, MB, Canada. .,Children's Hospital Research Institute of Manitoba (CHRIM), College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 0J9, Canada.
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Narayan S, Sharma R. Molecular mechanism of adenomatous polyposis coli-induced blockade of base excision repair pathway in colorectal carcinogenesis. Life Sci 2015; 139:145-52. [PMID: 26334567 DOI: 10.1016/j.lfs.2015.08.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 07/31/2015] [Accepted: 08/23/2015] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is the third leading cause of death in both men and women in North America. Despite chemotherapeutic efforts, CRC is associated with a high degree of morbidity and mortality. Thus, to develop effective treatment strategies for CRC, one needs knowledge of the pathogenesis of cancer development and cancer resistance. It is suggested that colonic tumors or cell lines harbor truncated adenomatous polyposis coli (APC) without DNA repair inhibitory (DRI)-domain. It is also thought that the product of the APC gene can modulate base excision repair (BER) pathway through an interaction with DNA polymerase β (Pol-β) and flap endonuclease 1 (Fen-1) to mediate CRC cell apoptosis. The proposed therapy with temozolomide (TMZ) exploits this particular pathway; however, a high percentage of colorectal tumors continue to develop resistance to chemotherapy due to mismatch repair (MMR)-deficiency. In the present communication, we have comprehensively reviewed a critical issue that has not been addressed previously: a novel mechanism by which APC-induced blockage of single nucleotide (SN)- and long-patch (LP)-BER play role in DNA-alkylation damage-induced colorectal carcinogenesis.
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Affiliation(s)
- Satya Narayan
- Department of Anatomy and Cell Biology, University of Florida, Gainesville, FL 32610 United States.
| | - Ritika Sharma
- Department of Anatomy and Cell Biology, University of Florida, Gainesville, FL 32610 United States
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VanKlompenberg MK, Bedalov CO, Soto KF, Prosperi JR. APC selectively mediates response to chemotherapeutic agents in breast cancer. BMC Cancer 2015; 15:457. [PMID: 26049416 PMCID: PMC4458029 DOI: 10.1186/s12885-015-1456-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 05/20/2015] [Indexed: 02/25/2023] Open
Abstract
Background The Adenomatous Polyposis Coli (APC) tumor suppressor is mutated or hypermethylated in up to 70 % of sporadic breast cancers depending on subtype; however, the effects of APC mutation on tumorigenic properties remain unexplored. Using the ApcMin/+ mouse crossed to the Polyoma middle T antigen (PyMT) transgenic model, we identified enhanced breast tumorigenesis and alterations in genes critical in therapeutic resistance independent of Wnt/β-catenin signaling. Apc mutation changed the tumor histopathology from solid to squamous adenocarcinomas, resembling the highly aggressive human metaplastic breast cancer. Mechanistic studies in tumor-derived cell lines demonstrated that focal adhesion kinase (FAK)/Src/JNK signaling regulated the enhanced proliferation downstream of Apc mutation. Despite this mechanistic information, the role of APC in mediating breast cancer chemotherapeutic resistance is currently unknown. Methods We have examined the effect of Apc loss in MMTV-PyMT mouse breast cancer cells on gene expression changes of ATP-binding cassette transporters and immunofluorescence to determine proliferative and apoptotic response of cells to cisplatin, doxorubicin and paclitaxel. Furthermore we determined the added effect of Src or JNK inhibition by PP2 and SP600125, respectively, on chemotherapeutic response. We also used the Aldefluor assay to measure the population of tumor initiating cells. Lastly, we measured the apoptotic and proliferative response to APC knockdown in MDA-MB-157 human breast cancer cells after chemotherapeutic treatment. Results Cells obtained from MMTV-PyMT;ApcMin/+ tumors express increased MDR1 (multidrug resistance protein 1), which is augmented by treatment with paclitaxel or doxorubicin. Furthermore MMTV-PyMT;ApcMin/+ cells are more resistant to cisplatin and doxorubicin-induced apoptosis, and show a larger population of ALDH positive cells. In the human metaplastic breast cancer cell line MDA-MB-157, APC knockdown led to paclitaxel and cisplatin resistance. Conclusions APC loss-of-function significantly increases resistance to cisplatin-mediated apoptosis in both MDA-MB-157 and the PyMT derived cells. We also demonstrated that cisplatin in combination with PP2 or SP600125 could be clinically beneficial, as inhibition of Src or JNK in an APC-mutant breast cancer patient may alleviate the resistance induced by mutant APC. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1456-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Monica K VanKlompenberg
- Harper Cancer Research Institute, A134 Harper Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA.,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine - South Bend, South Bend, IN, USA
| | - Claire O Bedalov
- Harper Cancer Research Institute, A134 Harper Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA.,Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
| | - Katia Fernandez Soto
- Harper Cancer Research Institute, A134 Harper Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA.,Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
| | - Jenifer R Prosperi
- Harper Cancer Research Institute, A134 Harper Hall, 1234 Notre Dame Ave., South Bend, IN, 46617, USA. .,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine - South Bend, South Bend, IN, USA. .,Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA.
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Antiatherogenic and antitumoral properties of Opuntia cladodes: inhibition of low density lipoprotein oxidation by vascular cells, and protection against the cytotoxicity of lipid oxidation product 4-hydroxynonenal in a colorectal cancer cellular model. J Physiol Biochem 2015; 71:577-87. [DOI: 10.1007/s13105-015-0408-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 03/25/2015] [Indexed: 02/02/2023]
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Nassiri M, Kooshyar MM, Roudbar Z, Mahdavi M, Doosti M. Genes and SNPs associated with non-hereditary and hereditary colorectal cancer. Asian Pac J Cancer Prev 2015; 14:5609-14. [PMID: 24289550 DOI: 10.7314/apjcp.2013.14.10.5609] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Colorectal cancer is the third most common cancer in both men and women in the world and the second leading cause of cancer-related deaths. The incidence of colorectal cancer has increased in Iran in the past three decades and is now considered as a serious problem for our society. This cancer has two types hereditary and non-hereditary, 80% of cases being the latter. Considering that the relationship between SNPs with diseases is a concern, many researchers believed that they offer valuable markers for identifying genes responsible for susceptibility to common diseases. In some cases, they are direct causes of human disease. One SNP can increase risk of cancer, but when considering the rate of overlap and frequency of DNA repair pathways, it might be expected that SNP alone cannot affect the final result of cancer, although several SNPs together can exert a significant influence. Therefore identification of these SNPs is very important. The most important loci which include mutations are: MLH1, MSH2, PMS2, APC, MUTYH, SMAD7, STK11, XRCC3, DNMT1, MTHFR, Exo1, XRCC1 and VDR. Presence of SNPs in these genes decreases or increases risk of colorectal cancer. MATERIALS AND METHODS In this article we reviewed the Genes and SNPs associated with non-hereditary and hereditary of colorectal cancer that recently were reported from candidate gene y, meta-analysis and GWAS studies. RESULTS As with other cancers, colorectal cancer is associated with SNPs in gene loci. Generally, by exploring SNPs, it is feasible to predict the risk of developing colorectal cancer and thus establishing proper preventive measures. CONCLUSIONS SNPs of genes associated with colorectal cancer can be used as a marker SNP panel as a potential tool for improving cancer diagnosis and treatment planning.
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Affiliation(s)
- Mohammadreza Nassiri
- Department of Animal Science, Ferdowsi University of Mashhad, Mashhad, Iran E-mail :
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Ding Z, Jiang T, Piao Y, Han T, Han Y, Xie X. Meta-analysis of the association between APC promoter methylation and colorectal cancer. Onco Targets Ther 2015; 8:211-22. [PMID: 25632237 PMCID: PMC4304602 DOI: 10.2147/ott.s75827] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Previous studies investigating the association between adenomatous polyposis coli (APC) gene promoter methylation and colorectal cancer (CRC) have yielded conflicting results. The aim of this study was to comprehensively evaluate the potential application of the detection of APC promoter methylation to the prevention and treatment of CRC. PubMed, Embase, and MEDLINE (results updated to October 2014) were searched for relevant studies. The effect size was defined as the weighted odds ratio (OR), which was calculated using either the fixed-effects or random-effects model. Prespecified subgroup and sensitivity analyses were conducted to evaluate potential heterogeneity among the included studies. Nineteen studies comprising 2,426 participants were selected for our meta-analysis. The pooled results of nine studies comprising a total of 740 subjects indicated that APC promoter methylation was significantly associated with CRC risk (pooled OR 5.53; 95% confidence interval [CI] 3.50–8.76; P<0.01). Eleven studies with a total of 1,219 patients evaluated the association between APC promoter methylation and the presence of CRC metastasis, and the pooled OR was 0.80 (95% CI 0.44–1.46; P=0.47). A meta-analysis conducted with four studies with a total of 467 patients found no significant correlation between APC promoter methylation and the presence of colorectal adenoma (pooled OR 1.85; 95% CI 0.67–5.10; P=0.23). No significant correlation between APC promoter methylation and patients’ Dukes’ stage, TNM stage, differentiation grade, age, or sex was identified. In conclusion, APC promoter methylation was found to be significantly associated with a higher risk of developing CRC. The findings indicate that APC promoter methylation may be a potential biomarker for the carcinogenesis of CRC.
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Affiliation(s)
- Zhenyu Ding
- Department of Oncology, General Hospital of Shenyang Military Region, Shenyang City, Liaoning Province, People's Republic of China
| | - Tong Jiang
- Laboratory of Military Health in Cold Region, Center for Disease Control and Prevention of Shenyang Military Region, Shenyang City, Liaoning Province, People's Republic of China
| | - Ying Piao
- Department of Oncology, General Hospital of Shenyang Military Region, Shenyang City, Liaoning Province, People's Republic of China
| | - Tao Han
- Department of Oncology, General Hospital of Shenyang Military Region, Shenyang City, Liaoning Province, People's Republic of China
| | - Yaling Han
- Institute of Cardiovascular Disease, General Hospital of Shenyang Military Region, Shenyang City, Liaoning Province, People's Republic of China
| | - Xiaodong Xie
- Department of Oncology, General Hospital of Shenyang Military Region, Shenyang City, Liaoning Province, People's Republic of China
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Kamat N, Khidhir MA, Hussain S, Alashari MM, Rannug U. Chemotherapy induced microsatellite instability and loss of heterozygosity in chromosomes 2, 5, 10, and 17 in solid tumor patients. Cancer Cell Int 2014; 14:118. [PMID: 25493073 PMCID: PMC4260186 DOI: 10.1186/s12935-014-0118-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 10/27/2014] [Indexed: 01/05/2023] Open
Abstract
Background The inevitable side effects of the currently used chemotherapy are associated with serious syndromes. Genotoxic effects and consequent genetic instability may play an important role in these syndromes. The aim of the study was to evaluate chemotherapy-related microsatellite instability (MSI), loss of heterozygosity (LOH), and loss of mismatch repair (MMR) expression in solid tumor patients. Methods Samples were collected from 117 de novo patients with solid tumors of different origins. Specimens, taken pre- and post-treatment, were screened for MSI and LOH in 10 microsatellite sequences in blood, and expression of five MMR proteins were analyzed in cancer tissues using immunohistochemistry. Statistical analysis included the use of; Fisher’s exact test, Chi Square, and an inter-rater reliability test using Cohen’s kappa coefficient. Results Microsatellite analysis showed that 66.7% of the patients had MSI, including 23.1% high-positive MSI and 43.6% low-positive MSI. A large portion (41%) of the patients exhibited LOH in addition to MSI. MSI and LOH were detected in seven loci in which incidence rates ranged from 3.8% positive for Bat-26 to 34.6% positive for Tp53-Alu. Immunohistochemistry revealed that human mutL homolog 1 (hMLH1) expression was deficient in 29.1% of the patients, whereas 18.8%, 23.9%, 13.4%, and 9.7% were deficient for human mutS homolog 2 (hMSH2), P53, human mutS homolog 6 (hMSH6) and human post-meiotic segregation increased 2 (hPMS2), respectively. There was a significant correlation between MSI and LOH incidence in Tp53-Alu, Mfd41, and APC with low or deficient expression of hMLH1, hMSH2, and P53. A significant association between MSI and LOH, and incidence of secondary tumors was also evident. Conclusions The negative correlation between MMR expression, MSI, and LOH and increased resistance to anti-cancer drugs and development of secondary cancers demonstrates a useful aid in early detection of potential chemotherapy-related side-effects. The diagnostic value demonstrated in our earlier study on breast cancer patients was confirmed for other solid tumors. Electronic supplementary material The online version of this article (doi:10.1186/s12935-014-0118-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nasir Kamat
- Department of Molecular Biosciences, the Wenner-Gren Institute (MBW), Stockholm University, SE-106 91 Stockholm, Sweden
| | - Mohammed A Khidhir
- Department of Genetics Research, Management of Natural Conservations, AlAin City, UAE
| | - Sabir Hussain
- Department of Oncology and Hematology, Tawam Hospital, AlAin City, UAE
| | - Mouied M Alashari
- Department of Pathology, University of Utah, Salt Lake City, Utah 84112 USA
| | - Ulf Rannug
- Department of Molecular Biosciences, the Wenner-Gren Institute (MBW), Stockholm University, SE-106 91 Stockholm, Sweden
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Kraft S, Granter SR. Molecular pathology of skin neoplasms of the head and neck. Arch Pathol Lab Med 2014; 138:759-87. [PMID: 24878016 DOI: 10.5858/arpa.2013-0157-ra] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT Skin neoplasms include the most common malignancies affecting humans. Many show an ultraviolet (UV)-induced pathogenesis and often affect the head and neck region. OBJECTIVE To review literature on cutaneous neoplasms that show a predilection for the head and neck region and that are associated with molecular alterations. DATA SOURCES Literature review. CONCLUSIONS Common nonmelanoma skin cancers, such as basal and squamous cell carcinomas, show a UV-induced pathogenesis. Basal cell carcinomas are characterized by molecular alterations of the Hedgehog pathway, affecting patched and smoothened genes. While squamous cell carcinomas show UV-induced mutations in several genes, driver mutations are only beginning to be identified. In addition, certain adnexal neoplasms also predominantly affect the head and neck region and show interesting, recently discovered molecular abnormalities, or are associated with hereditary conditions whose molecular genetic pathogenesis is well understood. Furthermore, recent advances have led to an increased understanding of the molecular pathogenesis of melanoma. Certain melanoma subtypes, such as lentigo maligna melanoma and desmoplastic melanoma, which are more often seen on the chronically sun-damaged skin of the head and neck, show differences in their molecular signature when compared to the other more common subtypes, such as superficial spreading melanoma, which are more prone to occur at sites with acute intermittent sun damage. In summary, molecular alterations in cutaneous neoplasms of the head and neck are often related to UV exposure. Their molecular footprint often reflects the histologic tumor type, and familiarity with these changes will be increasingly necessary for diagnostic and therapeutic considerations.
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Affiliation(s)
- Stefan Kraft
- From the Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts (Dr Kraft); and the Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts (Dr Granter)
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Kim ER, Kim YH. Clinical application of genetics in management of colorectal cancer. Intest Res 2014; 12:184-93. [PMID: 25349592 PMCID: PMC4204714 DOI: 10.5217/ir.2014.12.3.184] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 06/27/2014] [Accepted: 06/29/2014] [Indexed: 12/22/2022] Open
Abstract
The extensive study of genetic alterations in colorectal cancer (CRC) has led to molecular diagnostics playing an increasingly important role in CRC diagnosis and treatment. Currently, it is believed that CRC is a consequence of the accumulation of both genetic and epigenetic genomic alterations. It is known that there are at least 3 major pathways that lead to colorectal carcinogenesis: (1) the chromosomal instability pathway, (2) the microsatellite instability pathway, and (3) the cytosine-phospho-guanine island methylator phenotype pathway. With recent advances in CRC genetics, the identification of specific molecular alterations responsible for CRC pathogenesis has directly influences clinical care. Patients at high risk for developing CRC can be identified by genetic testing for specific molecular alterations, and the use of molecular biomarkers for predictive and prognostic purposes is also increasing. This is clearly supported by the recent advances in genetic testing for CRC whereby specific molecular alterations are identified for the purpose of guiding treatment with targeting therapies such as anti-endothelial growth factor receptor monoclonal antibodies.
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Affiliation(s)
- Eun Ran Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young-Ho Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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PELP1 suppression inhibits colorectal cancer through c-Src downregulation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:193523. [PMID: 24967003 PMCID: PMC4055551 DOI: 10.1155/2014/193523] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 04/20/2014] [Indexed: 01/16/2023]
Abstract
Proline-, glutamic acid-, and leucine-rich protein 1 (PELP1), a coregulator of estrogen receptors alpha and beta, is a potential protooncogene implicated in several human cancers, including sexual hormone-responsive or sexual hormone-nonresponsive cancers. However, the functions of PELP1 in colorectal cancer remain unclear. In this study, western blot and bioinformatics revealed that PELP1 expression was higher in several colorectal cancer cell lines than in immortalized normal colorectal epithelium. PELP1 silencing by short hairpin RNA promoted the senescence and inhibited the proliferation, colony formation, migration, invasion, and xenograft tumor formation of the CRC cell line HT-29. Moreover, PELP1 silencing was accompanied by c-Src downregulation. c-Src upregulation partly alleviated the damage in HT-29 malignant behavior induced by PELP1 RNA interference. In conclusion, PELP1 exhibits an oncogenic function in colorectal cancer through c-Src upregulation.
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Lepri SR, Zanelatto LC, da Silva PBG, Sartori D, Ribeiro LR, Mantovani MS. Effects of genistein and daidzein on cell proliferation kinetics in HT29 colon cancer cells: the expression of CTNNBIP1 (β-catenin), APC (adenomatous polyposis coli) and BIRC5 (survivin). Hum Cell 2014; 27:78-84. [PMID: 24390805 DOI: 10.1007/s13577-012-0051-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 10/15/2012] [Indexed: 12/15/2022]
Abstract
Soybean isoflavonoids have received significant attention due to their potential anticarcinogenic and antiproliferative effects and possible role in many signal transduction pathways. However, their mechanisms of action and their molecular targets remain to be further elucidated. In this paper, we demonstrated that two soybean isoflavones (genistein and daidzein) reduced the proliferation of the human colon adenocarcinoma grade II cell line (HT-29) at concentrations of 25 and 50-100 μM, respectively. We then investigated the effects of genistein and daidzein by RT-PCR on molecules that involved in tumor development and progression by their regulation of cell proliferation. At a concentration of 50 μM genistein, there was suppressed expression of β-catenin (CTNNBIP1). Neither genistein nor daidzein affected APC (adenomatous polyposis coli) or survivin (BIRC5) expression when cells were treated with concentrations of 10 or 50 μM. These data suggest that the down-regulation of β-catenin by genistein may constitute an important determinant of the suppression of HT-29 cell growth and may be exploited for the prevention and treatment of colon cancer.
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Affiliation(s)
- Sandra Regina Lepri
- General Biology Department, State University of Londrina (UEL), Rodovia Celso Garcia Cid, Pr 445 km 380, Campus Universitário, Cx. Postal 6001, CEP 86051-980, Londrina, PR, Brazil,
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50
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Lv S, Yang Y, Kwon S, Han M, Zhao F, Kang H, Dai C, Wang R. The association of CXCR4 expression with prognosis and clinicopathological indicators in colorectal carcinoma patients: a meta-analysis. Histopathology 2014; 64:701-12. [PMID: 24422942 DOI: 10.1111/his.12321] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 11/03/2013] [Indexed: 12/20/2022]
Abstract
AIMS The clinical relevance of expression of chemokine receptor 4 (CXCR4) in colorectal carcinoma (CRC) remains controversial; our aim was to identify the precise relationship of CXCR4 to prognosis and clinicopathological features. METHODS AND RESULTS A meta-analysis was performed. Original data included the hazard ratios (HRs) of recurrence-free survival (RFS), overall survival (OS) and odds ratio (OR) in CRC patients. We pooled HR/OR with 95% confidence intervals (CIs) to estimate the hazard. A total of 20 published studies (including 2253 patients) were eligible. RFS and OS were related significantly to CXCR4 expression, with HRs 1.62 (95% CI 1.24-2.11; P < 0.0001) and 1.68 (95% CI 1.31-2.14; P < 0.0001), respectively. In addition, a significant association was revealed between positive CXCR4 expression and age (less than median age: OR 0.78, 95% CI 0.62-0.98; P = 0.03), stage (I and II: OR 0.46, 95% CI 0.32-0.66; P < 0.0001), grade (well/moderately differentiated: OR 0.74, 95% CI 0.56-0.98; P = 0.04), location (colon: OR: 0.73, 95% CI 0.57-0.95; P = 0.02), lymph node invasion (present: OR2.14, 95% CI 1.36-3.37; P = 0.001),and distant metastasis (present: OR 2.40; 95% CI 1.36-4.23; P = 0.003). Heterogeneity was observed among the included studies with regard to stage (I(2) = 58 %), lymph node invasiveness (I(2) = 74%) and distant metastasis (I(2) = 56%). No publication bias was observed. CONCLUSIONS Chemokine receptor 4 expression indicates poorer prognosis in older patients and advanced stage or poor differentiation in CRC, and also serves as an indicator of lymph node and distal organ metastasis. Surprisingly, high CXCR4 expression may indicate that the location of the tumour is the rectum. Thus, CXCR4 could help to predict outcome and guide clinical therapy.
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Affiliation(s)
- Shunzeng Lv
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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