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Kalantari L, Hajjafari A, Goleij P, Rezaee A, Amirlou P, Farsad S, Foroozand H, Arefnezhad R, Rezaei-Tazangi F, Jahani S, Yazdani T, Nazari A. Umbilical cord mesenchymal stem cells: A powerful fighter against colon cancer? Tissue Cell 2024; 90:102523. [PMID: 39154502 DOI: 10.1016/j.tice.2024.102523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 08/07/2024] [Accepted: 08/13/2024] [Indexed: 08/20/2024]
Abstract
Colon cancer (CC) stands as one of the most common malignancies related to the gastrointestinal system, whose increasing incidence and death rates have been reported all over the world. Standard treatments for fighting cancers like CC comprise surgical approaches, chemotherapy, and radiotherapy, which are suggested by clinicians according to patients' conditions and disease stages. However, patients who utilize these modalities may suffer from serious side effects and adverse outcomes, for example, toxicity and tumor recurrence, as well as a low 5-year survival rate. The present shreds of evidence showed that mesenchymal stem cells (MSCs) can have a suitable capacity for treating different health problems, especially neoplasms. These multipotent stem cells can be isolated from several sources, such as the umbilical cord, bone marrow, adipose tissue, and placenta. Among these mesenchymal sources, umbilical cord-MSCs have gathered much attention in scientific societies due to their advantages (e.g., low immunogenicity, lack of ethical problems, and easy collection). These days, the efficacy of umbilical cord-MSCs and umbilical cord-MSCs-based strategies, such as conditioned medium, extracellular vesicles, and exosomes, on CC have been explored, and promising findings have been stated. Therefore, in this review, we aimed to summarize and debate evidence regarding the effects of UC-MSCs and their related products on CC with a focus on molecular and cellular mechanisms involved in its treatment and pathogenesis of this malignant tumor.
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Affiliation(s)
- Leila Kalantari
- Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran; School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Ashkan Hajjafari
- Department of Pathobiology, Faculty of Veterinary Medicine Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Pouya Goleij
- Department of Genetics, Sana Institute of Higher Education, Sari, Iran; USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Aryan Rezaee
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Parsa Amirlou
- Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Shirin Farsad
- Faculty of Basic Science, Islamic Azad University, Qom, Iran
| | - Hassan Foroozand
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Arefnezhad
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran; Coenzyme R Research Institute, Tehran, Iran
| | - Fatemeh Rezaei-Tazangi
- Department of Anatomy, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Saleheh Jahani
- Pathology department, University of California, SanDiego, United States
| | - Taha Yazdani
- Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ahmad Nazari
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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2
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Nguyen HT, Le DT, Duong QH, Tatipamula VB, Van Nguyen B. High frequency of microsatellite instability and its substantial co-existence with KRAS and BRAF mutations in Vietnamese patients with colorectal cancer. Oncol Lett 2020; 21:41. [PMID: 33262833 PMCID: PMC7693389 DOI: 10.3892/ol.2020.12302] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/23/2020] [Indexed: 12/24/2022] Open
Abstract
Tumor heterogeneity and resistance to chemotherapy have been recognized as two major obstacles in the diagnosis and treatment of colorectal cancer (CRC). Microsatellite instability (MSI) and KRAS and BRAF mutations are common diagnostic factors that have been widely used to classify CRC for therapeutics. In the present study, 151 patients with CRC were analyzed from the two most populous ethnic groups of Vietnam, Kinh and Muong, for their MSI status, frequency of KRAS and BRAF mutations, and their clinical implications. MSI-high (MSI-H) was detected in 45.0% (68/151), while mutated KRAS and BRAF were identified in 37.1% (56/151) and 2.6% (4/151) of the cases, respectively. There was a substantial co-existence of MSI-H with KRAS (27/56; 48.2%) and BRAF (3/4; 75.0%) mutations. Statistical analysis showed that MSI-H tumors were significantly associated with colon location (P=0.011) and more advanced T stages (P=0.016). KRAS exon 2 mutations were significantly more likely to be detected in patients who belonged to the Muong ethnic group (P=0.013) or those with no/fewer lymph node metastasis (P=0.048) as compared with their counterparts. In summary, the data revealed typical molecular features of Vietnamese patients with CRC, including a strikingly high rate of MSI-H and its high co-existence with KRAS and BRAF mutations, which should be carefully considered in the future therapeutics for this type of cancer.
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Affiliation(s)
- Ha Thi Nguyen
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam.,Faculty of Medicine, Duy Tan University, Danang 550000, Vietnam
| | - Do Thanh Le
- Institute for Global Health Innovations, Duy Tan University, Danang 550000, Vietnam.,Faculty of Pharmacy, Duy Tan University, Danang 550000, Vietnam
| | - Quan Hong Duong
- Laboratory Center, Hanoi University of Public Heath, Hanoi 100000, Vietnam
| | - Vinay Bharadwaj Tatipamula
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam.,Faculty of Pharmacy, Duy Tan University, Danang 550000, Vietnam
| | - Bang Van Nguyen
- Anapathology Department, Hue Central Hospital, Hue 530000, Vietnam
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3
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Kuo E, Wang K, Liu X. A Focused Review on Advances in Risk Stratification of Malignant Polyps. Gastroenterology Res 2020; 13:163-183. [PMID: 33224364 PMCID: PMC7665855 DOI: 10.14740/gr1329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/20/2020] [Indexed: 12/13/2022] Open
Abstract
Colorectal cancer is the third most common cancer in both men and women in the United States, with most cases arising from precursor adenomatous polyps. Colorectal malignant polyps are defined as cancerous polyps that consist of tumor cells invading through the muscularis mucosae into the underlying submucosa (pT1 tumor). It has been reported that approximately 0.5-8.3% of colorectal polyps are malignant polyps, and the potential for lymph node metastasis in these polyps ranges from 8.5% to 16.1%. Due to their clinical significance, recognition of malignant polyps is critical for clinical teams to make treatment decisions and establish appropriate surveillance schedules after local excision of the polyps. There is a rapidly developing interest in malignant polyps within the literature as a result of an increasing number of identifiable adverse histologic features and recent advancements in endoscopic treatment techniques. The purpose of this paper is to have a focused review of the recent histopathologic literature of malignant polyps.
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Affiliation(s)
- Enoch Kuo
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32610, USA.,Both authors contributed equally to this manuscript
| | - Kai Wang
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32610, USA.,Both authors contributed equally to this manuscript
| | - Xiuli Liu
- Department of Pathology, Immunology & Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32610, USA
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4
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Nguyen HT, Duong HQ. The molecular characteristics of colorectal cancer: Implications for diagnosis and therapy. Oncol Lett 2018; 16:9-18. [PMID: 29928381 DOI: 10.3892/ol.2018.8679] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 02/22/2018] [Indexed: 12/13/2022] Open
Abstract
Colorectal cancer (CRC) results from the progressive accumulation of multiple genetic and epigenetic aberrations within cells. The progression from colorectal adenoma to carcinoma is caused by three major pathways: Microsatellite instability, chromosomal instability and CpG island methylator phenotype. A growing body of scientific evidences suggests that CRC is a heterogeneous disease, and genetic characteristics of the tumors determine their prognostic outcome and response to targeted therapies. Early diagnosis and effective targeted therapies based on a current knowledge of the molecular characteristics of CRC are essential to the successful treatment of CRC. Therefore, the present review summarized the current understanding of the molecular characteristics of CRC, and discussed its implications for diagnosis and targeted therapy.
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Affiliation(s)
- Ha Thi Nguyen
- Center for Molecular Biology, Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam
| | - Hong-Quan Duong
- Department of Cancer Research, Vinmec Research Institute of Stem Cell and Gene Technology, Hanoi 100000, Vietnam
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5
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Chang PY, Chen JS, Chang SC, Wang MC, Chang NC, Wen YH, Tsai WS, Liu WH, Liu HL, Lu JJ. Acquired somatic TP53 or PIK3CA mutations are potential predictors of when polyps evolve into colorectal cancer. Oncotarget 2017; 8:72352-72362. [PMID: 29069792 PMCID: PMC5641135 DOI: 10.18632/oncotarget.20376] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/07/2017] [Indexed: 12/23/2022] Open
Abstract
Colorectal cancer (CRC) develops from accumulated mutations. However, which gene determines the malignant transformation from adenoma to carcinoma is still uncertain. Fifty-three formalin fixed paraffin-embedded polyps that had pathological findings from patients with hyperplasia, adenomatous, and tubular adenoma < 1 cm (non-neoplasia polyps, NNP, n = 27) or tubular adenoma ≥ 1 cm, tubulovillous and villous adenoma (neoplastic polyps, NP, n = 26) were recruited. Six paired synchronous polyps and cancer tissues and 50 independent fresh CRC tumors were also collected. All tissues were analyzed for their mutation genomes using next generation sequencing with a 50-gene panel. There were 40 types of somatic variants found in 7 genes, APC (43%), KRAS (28%), TP53 (11%), FBXW7 (8%), GNAS (4%), SMAD4 (2%), and BRAF (2%), and they were detected in 32 (60%) polyps. If combined with the mutation spectrum found in CRC tissues, a significant increase in the mutation rate in TP53 and PIK3CA from NNP, NP, early and late stage carcinoma (7%, 15%, 33.3% and 65% for TP53, p < 0.001; 0%, 0%, 23.3% and 25% for PIK3CA, p = 0.002) were noticed. Furthermore, distinct molecular features can be found in five pairs of synchronous polyps and tumors. However, TP53 or PIK3CA mutations can be found in tumor tissues but not in polyps. By systematically investigating the genome from polyps to tumor tissues, we demonstrated that acquired TP53 or PIK3CA somatic mutations are potential predictors for malignancy development. These results may aid in the identification of high risk individuals with tissues harboring mutations in these two genes.
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Affiliation(s)
- Pi-Yueh Chang
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at LinKou, Taoyuan, Taiwan.,Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Taoyuan, Taiwan
| | - Jinn-Shiun Chen
- Department of Colorectal Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Shih-Cheng Chang
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at LinKou, Taoyuan, Taiwan.,Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Taoyuan, Taiwan
| | - Mei-Chia Wang
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at LinKou, Taoyuan, Taiwan.,Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Taoyuan, Taiwan
| | - Nai-Chung Chang
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at LinKou, Taoyuan, Taiwan
| | - Ying-Hao Wen
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at LinKou, Taoyuan, Taiwan
| | - Wen-Sy Tsai
- Department of Colorectal Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Wei-Hsiu Liu
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at LinKou, Taoyuan, Taiwan
| | - Hsiu-Ling Liu
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at LinKou, Taoyuan, Taiwan
| | - Jang-Jih Lu
- Department of Laboratory Medicine, Chang Gung Memorial Hospital at LinKou, Taoyuan, Taiwan.,Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Taoyuan, Taiwan
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6
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Nguyen HT, Markouli C, Geens M, Barbe L, Sermon K, Spits C. Human embryonic stem cells show low-grade microsatellite instability. Mol Hum Reprod 2014; 20:981-9. [DOI: 10.1093/molehr/gau059] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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7
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Poulsen MLM, Bisgaard ML. MUTYH Associated Polyposis (MAP). Curr Genomics 2011; 9:420-35. [PMID: 19506731 PMCID: PMC2691665 DOI: 10.2174/138920208785699562] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Revised: 04/28/2008] [Accepted: 05/04/2008] [Indexed: 01/04/2023] Open
Abstract
MUTYH Associated Polyposis (MAP), a Polyposis predisposition caused by biallelic mutations in the Base Excision Repair (BER) gene MUTYH, confers a marked risk of colorectal cancer (CRC). The MAP phenotype is difficult to distinguish from other hereditary CRC syndromes. Especially from Familial Adenomatous Polyposis (FAP) and to a lesser extend Lynch Syndrome, which are caused by germline mutations in the APC and Mismatch Repair (MMR) genes, respectively. Here we review research findings regarding MUTYH interactions, genotypic and phenotypic characteristics of MAP, as well as surveillance and treatment of the disease. The applied papers, published between 1/1 2002- 1/2 2008, were found through PubMed. The exact role of MUTYH in CRC tumorgenesis is still uncertain, although MAP tumors show distinct molecular features, including somatic G:C>T:A transversions in the APC gene. Furthermore, cooperation between the BER and the MMR systems exists, as MUTYH interacts with MMR gene-products. Possibly, monoallelic defects in both pathways are of significance to CRC development. Specific MUTYH variants are found to be characteristic in distinct ethnic populations, which could facilitate future genetic screening. Knowledge concerning functional consequences of many MUTYH germline mutations remains sparse. Most thoroughly investigated are the two most common MUTYH variants, Y179C and G396D, both generating dysfunctional gene products. Phenotypic features of MAP include: development of 10-100 colorectal adenomas, debuting at 46-47 years, often CRC at time of clinical diagnosis, and in some, development of extracolonic manifestations.
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Affiliation(s)
- M L M Poulsen
- Department of Cellular and Molecular Medicine, University of Copenhagen, 2200 Copenhagen N, Denmark
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8
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Abdel-Rahman WM. Genomic instability and carcinogenesis: an update. Curr Genomics 2011; 9:535-41. [PMID: 19516960 PMCID: PMC2694557 DOI: 10.2174/138920208786847926] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 08/12/2008] [Accepted: 08/14/2008] [Indexed: 12/15/2022] Open
Abstract
Cancers arise as a result of stepwise accumulation of mutations which may occur at the nucleotide level and/or the gross chromosomal level. Many cancers particularly those of the colon display a form of genomic instability which may facilitate and speed up tumor initiation and development. In few instances, a "mutator mutation" has been clearly implicated in driving the accumulation of other carcinogenic mutations. For example, the post-replicative DNA mismatch repair deficiency results in dramatic increase in insertion/deletion mutations giving rise to the microsatellite instability (MSI) phenotype and may predispose to a spectrum of tumours when it occurs in the germline. Although many sporadic cancers show multiple mutations suggesting unstable genome, the role of this instability in carcinogenesis, as opposed to the power of natural selection, has been a matter of controversy. This review gives an update of the latest data on these issues particularly recent data from genome-wide, high throughput techniques as well as mathematical modelling. Throughout this review, reference will be made to the relevance of genomic instability to the pathogenesis of colorectal carcinoma particularly its hereditary and familial subsets.
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Affiliation(s)
- Wael M Abdel-Rahman
- Department of Medical Laboratory Technology, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
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9
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Power DG, Gloglowski E, Lipkin SM. Clinical genetics of hereditary colorectal cancer. Hematol Oncol Clin North Am 2011; 24:837-59. [PMID: 20816577 DOI: 10.1016/j.hoc.2010.06.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Colorectal cancer (CRC) is a common disease, and approximately 25% of patients have a familial component. High-penetrance singlegene germline mutations conferring a true hereditary susceptibility account for around 5% to 6% of all cases. Lynch syndrome is the most common hereditary form of colorectal cancer. Much of the hereditary component in the remaining familial cases of CRC is likely polygenic, and many of the genetic changes involved are as yet unidentified. This article addresses the most clinically important CRC genetic syndromes.
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Affiliation(s)
- Derek G Power
- Clinical Genetics, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
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10
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Abstract
Until recently, colonic polyps were traditionally classified as either hyperplastic or adenomatous, and only the latter were believed to have the potential to progress to carcinoma. However, it is now appreciated that a subset of serrated polyps also appear to have malignant potential. Serrated polyps are a heterogeneous group of colon polyps that include hyperplastic polyps, sessile serrated adenomas (SSAs), traditional serrated adenomas, and mixed polyps. Insights into these polyps were derived, in part, from studies of patients with the hyperplastic polyposis syndrome. SSAs show a predilection for the right colon, have a distinct histology, and their molecular genetic profile has recently been linked to a pathway for colon tumorigenesis that is characterized by microsatellite instability. Based upon available evidence, it is recommended that patients with serrated adenomas undergo colonoscopic follow-up at the same frequency as for conventional adenomas. It is important that physicians are aware of serrated polyps, particularly serrated adenomas and their relationship to colon cancer, and their proper clinical management.
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Affiliation(s)
- Aravind Sugumar
- Division of Gastroenterology & Hepatology and Division of Oncology, Mayo Clinic and Mayo College of Medicine 200 First Street SW, Rochester, MN 55905 USA
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11
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Relevance of miR-21 and miR-143 expression in tissue samples of colorectal carcinoma and its liver metastases. ACTA ACUST UNITED AC 2010; 200:154-60. [DOI: 10.1016/j.cancergencyto.2010.04.015] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Revised: 03/09/2010] [Accepted: 04/18/2010] [Indexed: 12/16/2022]
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12
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Differentiated thyroid cancer associated with intestinal polyposis syndromes: A review. Head Neck 2009; 31:1511-9. [DOI: 10.1002/hed.21156] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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13
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Sengupta N, Gill KA, MacFie TS, Lai CS, Suraweera N, Mcdonald S, Silver A. Management of colorectal cancer: a role for genetics in prevention and treatment? Pathol Res Pract 2008; 204:469-77. [PMID: 18534770 DOI: 10.1016/j.prp.2008.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Colorectal cancer remains one of the most common cancers in the Western world and amongst the top three causes of cancer morbidity and death. Cancer is caused by genetic mutations, but currently there is little use of genetic information in the clinic with the exception of establishing germline mutations for the uncommon predisposing syndromes. Rapid advances in technologies allowing high throughput analysis of germline and somatic mutations raises the possibility that genetics will find a major role in the clinic distinguishing individuals at low to high risk of cancer, allowing early intervention and stratification of cancers based on mutational pathways for therapeutic interventions. In the future, this will lead to treatment regimes tailored to the individuals and their tumor. Here, we summarize the genetics underlying colorectal cancer and the future role of genetics in prevention, diagnosis, classification and treatment.
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Affiliation(s)
- Neel Sengupta
- Colorectal Cancer Genetics Group, Institute of Cell, and Molecular Science, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, Whitechapel, London E1 2AT, UK
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14
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Beiner ME, Zhang WW, Zhang S, Gallinger S, Sun P, Narod SA. Mutations of the MYH gene do not substantially contribute to the risk of breast cancer. Breast Cancer Res Treat 2008; 114:575-8. [PMID: 18454351 DOI: 10.1007/s10549-008-0042-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Accepted: 04/23/2008] [Indexed: 12/13/2022]
Abstract
PURPOSE To explore whether or not there is an association between the presence of either of the germline mutations in the MutY human homologue (MYH) gene (Y165C and G382D) and the risk of breast cancer. METHODS 691 breast cancer patients and 812 healthy controls were genotyped for the MYH Y165C and G382D mutations. The frequencies of heterozygotes, homozygotes and compound heterozygotes were compared for the two groups. RESULTS Four (0.6%) of 691 breast cancer cases carried a MYH Y165C mutant allele, compared to five (0.6%) of the controls (OR 1.1, 95%CI 0.29-4.0, P=0.9). Eight (1.2%) cases carried a MYH G382D mutant allele, compared to eight (1.0%) of the controls (OR 1.2, 95%CI 0.44-3.3, P=0.7). No case or control was homozygous for the variant and none were compound heterozygotes. CONCLUSION Carriers of the MYH Y165C or G382D mutant alleles do not appear to be at increased risk for breast cancer.
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Affiliation(s)
- Mario E Beiner
- Women's College Research Institute, Women's College Hospital, 790 Bay Street, 7th Floor, Toronto, ON, Canada M5G 1N8
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15
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Park IJ, Kim HC, Yoon YS, Yu CS, Jang SJ, Kim JC. Clinicopathological characteristics of colorectal cancer with family history: an evaluation of family history as a predictive factor for microsatellite instability. J Korean Med Sci 2007; 22 Suppl:S91-7. [PMID: 17923762 PMCID: PMC2694396 DOI: 10.3346/jkms.2007.22.s.s91] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
To determine whether family history of cancer may be a risk factor for the mutator phenotype in colorectal cancer, we recruited 143 consecutive colorectal cancer patients with a family history of accompanying cancers not meeting the Amsterdam criteria. Microsatellite instability (MSI) at 5 markers, hMLH1-promoter methylation, and expression of mismatch repair (MMR) proteins (hMLH1, hMSH2, hMSH6, hMPS1, and hPMS2) were determined. Among the relatives of familial colorectal cancer patients, colorectal cancer was the most common tumor type. Of the proband colorectal cancers, 26 (18.2%) showed high-level MSI (MSI-H); 47 additional tumors with mutator phenotype (32.9%) were identified by hMLH1-promoter methylation and/or loss of MMR protein expression. Mutator phenotype was associated with right-sided colon cancer and the type of accompanying cancer. Family history, which was differentially quantified according to the degree of relatives and the type of accompanying cancers, effectively discriminated MSI-H from microsatellite stable (MSS) and low-level microsatellite instability (MSI-L) and mutator phenotypes. Our findings indicate that familial colorectal cancer may be associated with multiple occurrences of colorectal or accompanying cancers and that family history could be correlated with microsatellite instability.
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Affiliation(s)
- In Ja Park
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Hee Cheol Kim
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
- Laboratory of Cancer Biology & Genetics, Asan Institute for Life Sciences, Seoul, Korea
| | - Yong Sik Yoon
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Chang Sik Yu
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Se Jin Jang
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
- Department of Pathology, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Jin Cheon Kim
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
- Laboratory of Cancer Biology & Genetics, Asan Institute for Life Sciences, Seoul, Korea
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16
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Lazar AJF, Lyle S, Calonje E. Sebaceous neoplasia and Torre-Muir syndrome. CURRENT DIAGNOSTIC PATHOLOGY 2007; 13:301-319. [PMID: 18670585 PMCID: PMC2128686 DOI: 10.1016/j.cdip.2007.05.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Sebaceous tumours include hyperplasia, adenoma, sebaceoma and carcinoma. Importantly, the latter three are potential markers of Torre-Muir syndrome; the hereditary association of sebaceous neoplasia and internal malignancy, most commonly colorectal carcinoma. The diagnostic features, differential diagnosis, molecular diagnostics and recent advances in pathogenesis of this rare group of tumours are discussed along with Torre-Muir syndrome and recommendations for screening for this important association.
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Affiliation(s)
- A J F Lazar
- Departments of Pathology and Dermatology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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17
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Bonde P, Gao D, Chen L, Miyashita T, Montgomery E, Harmon JW, Wei C. Duodenal Reflux Leads to Down Regulation of DNA Mismatch Repair Pathway in an Animal Model of Esophageal Cancer. Ann Thorac Surg 2007; 83:433-40; discussion 440. [PMID: 17257966 DOI: 10.1016/j.athoracsur.2006.06.090] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2005] [Revised: 06/25/2006] [Accepted: 06/28/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND Gastroduodenal reflux is implicated in esophageal carcinogenesis. This effect is mediated by reactive oxygen species. We hypothesized that this is mediated by DNA mismatch lesion 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxoG), which is repaired by the Mut Y homologue (MYH). We tested the effect of reflux, either alone or in combination with the human dietary mutagen methyl-n-amyl nitrosamine (MNAN), on DNA damage in adenocarcinoma and squamous cell cancer of the esophagus in a rat model. METHODS Reflux was promoted in male Sprague-Dawley rats by duodenoesophageal anastomosis (8 weeks) without gastric bypass. MNAN treatment (25 mg/kg per week intraperitoneally for four doses) commenced at 10 weeks age. Ten animals served as controls. Quantification of 8-oxoG was performed by using immunohistochemistry, and MYH was analyzed by Western blot. Apoptosis was assessed by terminal deoxynucleotide transferase-mediated deoxy uridine triphosphate nick-end labeling (TUNEL), cytochrome C, and caspase. RESULTS Tumors (adenocarcinoma) developed in 15 (50%) of 30 animals with reflux alone; this increased to 26 (86.6%) of 30 when reflux was combined with MNAN treatment, with tumor histology consistent with adenosquamous and squamous cell cancer. DNA damage, as reflected by positive 8-oxoG staining in reflux groups, was significantly increased compared with control (p < 0.01), and this was maximal in tissues with malignant transformation. Protein levels of the DNA repair enzyme MYH were significantly less in tissues subjected to reflux compared with controls (p < 0.05). TUNEL, cytochrome C, and caspase positivity confirmed increased apoptosis in cancer lesions. CONCLUSIONS Gastroduodenal reflux leads to increased DNA damage and downregulation of the DNA mismatch repair pathway. This pathway has an important role in esophageal carcinogenesis in rats.
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Affiliation(s)
- Pramod Bonde
- Cardiothoracic-Renal Molecular Research Program, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
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Affiliation(s)
- Rachel S Reina
- Mohs Micrographic Surgery Unit, Tulane University School of Medicine, New Orleans, Louisiana 70112-2699, USA.
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Aggressive Extraocular Sebaceous Carcinoma in a 52-Year-Old Man. Dermatol Surg 2006. [DOI: 10.1097/00042728-200610000-00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abdel-Rahman WM, Mecklin JP, Peltomäki P. The genetics of HNPCC: application to diagnosis and screening. Crit Rev Oncol Hematol 2006; 58:208-20. [PMID: 16434208 DOI: 10.1016/j.critrevonc.2005.11.001] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2005] [Revised: 10/30/2005] [Accepted: 11/09/2005] [Indexed: 01/26/2023] Open
Abstract
Hereditary nonpolyposis colorectal cancer syndrome (HNPCC; Lynch Syndrome) is the most common form of hereditary colorectal cancers. Predisposed individuals have increased lifetime risk of developing colorectal, endometrial and other cancers. The syndrome is primarily due to heterozygous germline mutations in one of the mismatch repair genes; mainly MLH1, MSH2, MSH6 and PMS2. The resulting mismatch repair deficiency leads to microsatellite instability which is the hallmark of tumors arising within this syndrome, as well as a variable proportion of sporadic tumors. Diagnostic guidelines and criteria for molecular testing of suspected families have been proposed and are continuously updated. However, not all families fulfilling these criteria show mutations in mismatch repair genes and/or microsatellite instability implicating other, as yet unknown, carcinogenic mechanisms and predisposition genes. This subset of tumors is the focus of current clinical and molecular research. This review addresses recent advances in the field of HNPCC research and their applications in the management of affected individuals and families.
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Abstract
It has been almost 25 years since Doll and Peto performed their landmark analysis of epidemiological data to identify the causes of cancers and possible modes of cancer prevention. Since then, there have been many additional studies of cancer incidence using various epidemiological techniques. These studies revealed expanded opportunities for cancer prevention through approaches that include vaccination, increased physical activity, weight control and avoidance of post-menopausal hormone therapy.
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Affiliation(s)
- Graham A Colditz
- Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA.
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Chang BL, Isaacs SD, Wiley KE, Gillanders EM, Zheng SL, Meyers DA, Walsh PC, Trent JM, Xu J, Isaacs WB. Genome-wide screen for prostate cancer susceptibility genes in men with clinically significant disease. Prostate 2005; 64:356-61. [PMID: 15754351 DOI: 10.1002/pros.20249] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND One of the difficulties confronting genetic studies of prostate cancer is the complex and heterogeneous etiology. Given the high population frequency of lesions meeting the histological definition of prostate cancer, a significant portion of men with a positive family history may be diagnosed due to increased surveillance and associated higher likelihood of biopsy. Over diagnosis decreases power to detect genes that increase susceptibility to a clinically significant prostate cancer. METHODS We re-evaluated all 623 men with prostate cancer in our 188 hereditary prostate cancer families and identified a subset of 244 men with more aggressive disease based upon meeting at least one of the following clinical and/or pathologic criteria: tumor grade Gleason score > or = 7, tumor stage T2c or higher, pretreatment PSA > or = 20 ng/ml, rising PSA after treatment, evidence of metastasis, or death from prostate cancer. RESULTS Genome-wide screens were re-performed by defining men as affected only if they met the criteria for clinically significant disease. The new analyses identified stronger evidence for linkage in Xq27-28 and 22q, as well as several novel loci, including 3p and 9p. CONCLUSIONS Although, these results need to be confirmed in independent studies, our approach represents an important step to overcome the impact of over diagnosis in genetic studies of prostate cancer. Larger studies that incorporate this approach are needed.
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Affiliation(s)
- Bao-Li Chang
- Center for Human Genomics, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157, USA
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