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Prendecka-Wróbel M, Pigoń-Zając D, Sondej D, Grzywna K, Kamińska K, Szuta M, Małecka-Massalska T. Can Dietary Actives Affect miRNAs and Alter the Course or Prevent Colorectal Cancer? Int J Mol Sci 2023; 24:10142. [PMID: 37373289 DOI: 10.3390/ijms241210142] [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: 04/24/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Colorectal cancer is a diet-related cancer. There is much research into the effects of nutrients on the prevention, modulation, and treatment of colorectal cancer. Researchers are trying to find a correlation between epidemiological observations indicating certain dietary components as the originator in the process of developing colorectal cancer, such as a diet rich in saturated animal fats, and dietary components that could eliminate the impact of harmful elements of the daily nutritional routine, i.e., substances such as polyunsaturated fatty acids, curcumin, or resveratrol. Nevertheless, it is very important to understand the mechanisms underlying how food works on cancer cells. In this case, microRNA (miRNA) seems to be a very significant research target. MiRNAs participate in many biological processes connected to carcinogenesis, progression, and metastasis. However, this is a field with development prospects ahead. In this paper, we review the most significant and well-studied food ingredients and their effects on various miRNAs involved in colorectal cancer.
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Affiliation(s)
- Monika Prendecka-Wróbel
- Department of Human Physiology of the Chair of Preclinical Sciences, Medical University of Lublin, Radziwiłłowska 11, 20-080 Lublin, Poland
| | - Dominika Pigoń-Zając
- Department of Human Physiology of the Chair of Preclinical Sciences, Medical University of Lublin, Radziwiłłowska 11, 20-080 Lublin, Poland
| | - Daria Sondej
- Department of Human Physiology of the Chair of Preclinical Sciences, Medical University of Lublin, Radziwiłłowska 11, 20-080 Lublin, Poland
| | - Karolina Grzywna
- Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland
| | - Katarzyna Kamińska
- Department of Human Physiology of the Chair of Preclinical Sciences, Medical University of Lublin, Radziwiłłowska 11, 20-080 Lublin, Poland
| | - Mariusz Szuta
- Chair of Oral Surgery, Jagiellonian University Medical College, 31-155 Kraków, Poland
| | - Teresa Małecka-Massalska
- Department of Human Physiology of the Chair of Preclinical Sciences, Medical University of Lublin, Radziwiłłowska 11, 20-080 Lublin, Poland
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2
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You M, Xie Z, Zhang N, Zhang Y, Xiao D, Liu S, Zhuang W, Li L, Tao Y. Signaling pathways in cancer metabolism: mechanisms and therapeutic targets. Signal Transduct Target Ther 2023; 8:196. [PMID: 37164974 PMCID: PMC10172373 DOI: 10.1038/s41392-023-01442-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 03/20/2023] [Accepted: 04/17/2023] [Indexed: 05/12/2023] Open
Abstract
A wide spectrum of metabolites (mainly, the three major nutrients and their derivatives) can be sensed by specific sensors, then trigger a series of signal transduction pathways and affect the expression levels of genes in epigenetics, which is called metabolite sensing. Life body regulates metabolism, immunity, and inflammation by metabolite sensing, coordinating the pathophysiology of the host to achieve balance with the external environment. Metabolic reprogramming in cancers cause different phenotypic characteristics of cancer cell from normal cell, including cell proliferation, migration, invasion, angiogenesis, etc. Metabolic disorders in cancer cells further create a microenvironment including many kinds of oncometabolites that are conducive to the growth of cancer, thus forming a vicious circle. At the same time, exogenous metabolites can also affect the biological behavior of tumors. Here, we discuss the metabolite sensing mechanisms of the three major nutrients and their derivatives, as well as their abnormalities in the development of various cancers, and discuss the potential therapeutic targets based on metabolite-sensing signaling pathways to prevent the progression of cancer.
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Affiliation(s)
- Mengshu You
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 410078, Changsha, Hunan, China
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 410078, Changsha, Hunan, China
| | - Zhuolin Xie
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 410078, Changsha, Hunan, China
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 410078, Changsha, Hunan, China
| | - Nan Zhang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 410078, Changsha, Hunan, China
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 410078, Changsha, Hunan, China
| | - Yixuan Zhang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 410078, Changsha, Hunan, China
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 410078, Changsha, Hunan, China
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Shuang Liu
- Department of Oncology, Institute of Medical Sciences, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Wei Zhuang
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, People's Republic of China.
| | - Lili Li
- Cancer Epigenetics Laboratory, Department of Clinical Oncology, State Key Laboratory of Translational Oncology, Sir YK Pao Centre for Cancer and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Ma Liu Shui, Hong Kong.
| | - Yongguang Tao
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 410078, Changsha, Hunan, China.
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China.
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, 410078, Changsha, Hunan, China.
- Department of Thoracic Surgery, Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, Second Xiangya Hospital, Central South University, 410011, Changsha, China.
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3
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The Modulatory Effects of Fatty Acids on Cancer Progression. Biomedicines 2023; 11:biomedicines11020280. [PMID: 36830818 PMCID: PMC9953116 DOI: 10.3390/biomedicines11020280] [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: 12/01/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Cancer is the second leading cause of death worldwide and the global cancer burden rises rapidly. The risk factors for cancer development can often be attributed to lifestyle factors, of which an unhealthy diet is a major contributor. Dietary fat is an important macronutrient and therefore a crucial part of a well-balanced and healthy diet, but it is still unclear which specific fatty acids contribute to a healthy and well-balanced diet in the context of cancer risk and prognosis. In this review, we describe epidemiological evidence on the associations between the intake of different classes of fatty acids and the risk of developing cancer, and we provide preclinical evidence on how specific fatty acids can act on tumor cells, thereby modulating tumor progression and metastasis. Moreover, the pro- and anti-inflammatory effects of each of the different groups of fatty acids will be discussed specifically in the context of inflammation-induced cancer progression and we will highlight challenges as well as opportunities for successful application of fatty acid tailored nutritional interventions in the clinic.
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Stem-Cell Theory of Cancer: Implications for Antiaging and Anticancer Strategies. Cancers (Basel) 2022; 14:cancers14051338. [PMID: 35267646 PMCID: PMC8909197 DOI: 10.3390/cancers14051338] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/16/2022] [Accepted: 02/28/2022] [Indexed: 12/03/2022] Open
Abstract
Simple Summary A stem-cell theory of cancer connects aging with cancer. It indicates that aging is a stemness process and cancer is a stem-cell disease. It implicates that a pertinent scientific strategy and proper research endeavor may provide us with realistic antiaging objectives and superior anticancer outcomes. In this perspective, we illustrate that a stem-cell origin of aging and cancer reiterates a fundamental oncological principle: although genetic makeup may be pivotal, cellular context is paramount. When the genome and epigenome that regulate aging and malignancy are also stemness genes and stem-like properties, they reaffirm the essential role stem-cell quality and quantity play in our lifespan and in the formation of cancer. Abstract A stem-cell theory of cancer predicates that not only does the cell affect the niche, the niche also affects the cell. It implicates that even though genetic makeup may be supreme, cellular context is key. When we attempt to solve the mystery of a long cancer-free life, perhaps we need to search no further than the genetics and epigenetics of the naked mole-rat. When we try to unlock the secrets in the longevity and quality of life, perhaps we need to look no further than the lifestyle and habits of the super centenarians. We speculate that people with Down’s syndrome and progeria age faster but have fewer cancers, because they are depleted of stem cells, and, as a consequence, have fewer opportunities for stem cell defects that could predispose them to the development of cancer. We contemplate whether these incredible experiments of nature may provide irrefutable evidence that cancer is a stem-cell disease—fewer aberrant stem cells, fewer cancers; no defective stem cells, no cancer. In this perspective, we investigate a stem-cell origin of aging and cancer. We elaborate an intriguing inverse relationship between longevity and malignancy in the naked mole-rat, in Down’s syndrome, and in progeria. We postulate that stem-cell pools and stemness factors may affect aging and dictate cancer. We propose that a healthy microbiome may protect and preserve stem cell reserves and provide meaningful antiaging effects and anticancer benefits.
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Guz M, Jeleniewicz W, Malm A, Korona-Glowniak I. A Crosstalk between Diet, Microbiome and microRNA in Epigenetic Regulation of Colorectal Cancer. Nutrients 2021; 13:2428. [PMID: 34371938 PMCID: PMC8308570 DOI: 10.3390/nu13072428] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 02/07/2023] Open
Abstract
A still growing interest between human nutrition in relation to health and disease states can be observed. Dietary components shape the composition of microbiota colonizing our gastrointestinal tract which play a vital role in maintaining human health. There is a strong evidence that diet, gut microbiota and their metabolites significantly influence our epigenome, particularly through the modulation of microRNAs. These group of small non-coding RNAs maintain cellular homeostasis, however any changes leading to impaired expression of miRNAs contribute to the development of different pathologies, including neoplastic diseases. Imbalance of intestinal microbiota due to diet is primary associated with the development of colorectal cancer as well as other types of cancers. In the present work we summarize current knowledge with particular emphasis on diet-microbiota-miRNAs axis and its relation to the development of colorectal cancer.
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Affiliation(s)
- Małgorzata Guz
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Witold Jeleniewicz
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Anna Malm
- Department of Pharmaceutical Microbiology, Medical University of Lublin, 20-093 Lublin, Poland; (A.M.); (I.K.-G.)
| | - Izabela Korona-Glowniak
- Department of Pharmaceutical Microbiology, Medical University of Lublin, 20-093 Lublin, Poland; (A.M.); (I.K.-G.)
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Zhang F, Yuan X, Sun H, Yin X, Gao Y, Zhang M, Jia Z, Yu M, Ying S, Xia H, Ju L, Xiao Y, Tao H, Lou J, Zhu L. A nontoxic dose of chrysotile can malignantly transform Met-5A cells, in which microRNA-28 has inhibitory effects. J Appl Toxicol 2021; 41:1879-1892. [PMID: 33890321 DOI: 10.1002/jat.4174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/25/2021] [Accepted: 04/01/2021] [Indexed: 11/11/2022]
Abstract
Chrysotile, which is classified as a class I carcinogen by the International Agency for Research on Cancer (IARC), has extensive application in the industry and can lead to lung or other cancers. However, whether chrysotile causes malignant mesothelioma and its molecular mechanism remain debatable. Thus, this study aimed to demonstrate the mesothelioma-inducing potential of chrysotile at the mesothelial cellular level and the function of microRNA-28 in malignantly transformed mesothelial MeT-5A cells. MeT-5A cells malignantly transformed by a nontoxic dose of chrysotile were named Asb-T, and miR-28 expression was downregulated in Asb-T cells. Restoration of miR-28 expression inhibited the proliferation, migration and invasion of Asb-T cells. We verified that IMPDH is a putative target of miR-28. The expression of IMPDH was significantly higher in Asb-T MeT-5A cells than in control cells, whereas the opposite trend was observed with miR-28 overexpression. Additionally, inhibition of IMPDH had similar effects as miR-28 overexpression. After miR-28 was elevated or IMPDH was inhibited, Ras activation was reduced, and its downstream pathways (the Erk and Akt signalling pathways) were inhibited. Surprisingly, the content of miR-28 in the blood of mesothelioma patients was higher than that in control subjects. Overall, nontoxic doses of chrysotile can cause malignant transformation of MeT-5A cells. Moreover, miR-28 inhibits the proliferation, migration and invasion of Asb-T MeT-5A cells, negatively regulates the expression of IMPDH through the Ras signalling pathway and may be an important therapeutic target.
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Affiliation(s)
- Fangfang Zhang
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Xiuyuan Yuan
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Hongjing Sun
- Department of Ophthalmology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xianhong Yin
- Ministry of Education Key Laboratory of Contemporary Anthropology, Department of Anthropology and Human Genetics, School of Life Sciences, Fudan University, Shanghai, China
| | - Yanan Gao
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Min Zhang
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Zhenyu Jia
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Min Yu
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Shibo Ying
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Hailing Xia
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Li Ju
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Yun Xiao
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - He Tao
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Jianlin Lou
- School of Public Health, Hangzhou Medical College, Hangzhou, China
| | - Lijin Zhu
- School of Public Health, Hangzhou Medical College, Hangzhou, China
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7
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Tan H, Nie S. Deciphering diet-gut microbiota-host interplay: Investigations of pectin. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.10.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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8
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Toumazi D, Constantinou C. A Fragile Balance: The Important Role of the Intestinal Microbiota in the Prevention and Management of Colorectal Cancer. Oncology 2020; 98:593-602. [PMID: 32604093 DOI: 10.1159/000507959] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/16/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Colorectal cancer is the second leading cause of cancer-related death worldwide. In recent years, researchers have focussed on the role of the intestinal microbiota in both the prevention and the treatment of colorectal cancer. SUMMARY The evidence in the literature supports that there is a fragile balance between different species of bacteria in the human gut. A disturbance of this balance towards increased levels of the bacteria Fusobacterium nucleatum and Bacteroides fragilis is associated with an increased risk of colorectal cancer. The mechanisms involved include the release of toxins which activate inflammation and the regulation of specific miRNAs (with an increase in the expression of oncogenic miRNAs and a decrease in the expression of tumour suppressor miRNAs), thereby increasing cell proliferation and leading to tumorigenesis. On the other hand, Lactobacillus and Bifidobacterium have a protective effect against the development of colorectal cancer through mechanisms that involve an increase in the levels of anticarcinogenic metabolites such as butyrate and a decrease in the activity of proinflammatory pathways. Even though preliminary studies support that the use of probiotics in the prevention and management of colorectal cancer is promising, more research is needed in this field. Key Message: The association between the intestinal microbiota, diet and colorectal cancer remains an active area of research with expected future applications in the use of probiotics for the prevention and management of this significant disease.
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Affiliation(s)
- Daniela Toumazi
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, Nicosia, Cyprus
| | - Constantina Constantinou
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, Nicosia, Cyprus,
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9
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Science and Healthy Meals in the World: Nutritional Epigenomics and Nutrigenetics of the Mediterranean Diet. Nutrients 2020; 12:nu12061748. [PMID: 32545252 PMCID: PMC7353392 DOI: 10.3390/nu12061748] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/07/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023] Open
Abstract
The Mediterranean Diet (MD), UNESCO Intangible Cultural Heritage of Humanity, has become a scientific topic of high interest due to its health benefits. The aim of this review is to pick up selected studies that report nutrigenomic or nutrigenetic data and recapitulate some of the biochemical/genomic/genetic aspects involved in the positive health effects of the MD. These include (i) the antioxidative potential of its constituents with protective effects against several diseases; (ii) the epigenetic and epigenomic effects exerted by food components, such as Indacaxanthin, Sulforaphane, and 3-Hydroxytyrosol among others, and their involvement in the modulation of miRNA expression; (iii) the existence of predisposing or protective human genotypes due to allelic diversities and the impact of the MD on disease risk. A part of the review is dedicated to the nutrigenomic effects of the main cooking methods used in the MD and also to a comparative analysis of the nutrigenomic properties of the MD and other diet regimens and non-MD-related aliments. Taking all the data into account, the traditional MD emerges as a diet with a high antioxidant and nutrigenomic modulation power, which is an example of the “Environment-Livings-Environment” relationship and an excellent patchwork of interconnected biological actions working toward human health.
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Hsien Lai S, Zervoudakis G, Chou J, Gurney ME, Quesnelle KM. PDE4 subtypes in cancer. Oncogene 2020; 39:3791-3802. [PMID: 32203163 PMCID: PMC7444459 DOI: 10.1038/s41388-020-1258-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 12/22/2022]
Abstract
Cyclic nucleotide phosphodiesterases (PDE) break down cyclic nucleotides such as cAMP and cGMP, reducing the signaling of these important intracellular second messengers. Several unique families of phosphodiesterases exist, and certain families are clinically important modulators of vasodilation. In the current work, we have summarized the body of literature that describes an emerging role for the PDE4 subfamily of phosphodiesterases in malignancy. We have systematically investigated PDE4A, PDE4B, PDE4C, and PDE4D isoforms and found evidence associating them with several cancer types including hematologic malignancies and lung cancers, among others. In this review, we compare the evidence examining the functional role of each PDE4 subtype across malignancies, looking for common signaling themes, signaling pathways, and establishing the case for PDE4 subtypes as a potential therapeutic target for cancer treatment.
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Affiliation(s)
- Samuel Hsien Lai
- Department of Biomedical Sciences, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
| | - Guston Zervoudakis
- Department of Biomedical Sciences, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
| | - Jesse Chou
- Department of Biomedical Sciences, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
| | | | - Kelly M Quesnelle
- Department of Biomedical Sciences, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA.
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11
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Montgomery M, Srinivasan A. Epigenetic Gene Regulation by Dietary Compounds in Cancer Prevention. Adv Nutr 2019; 10:1012-1028. [PMID: 31100104 PMCID: PMC6855955 DOI: 10.1093/advances/nmz046] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/07/2019] [Accepted: 04/03/2019] [Indexed: 02/06/2023] Open
Abstract
Traditionally, cancer has been viewed as a set of diseases that are driven by the accumulation of genetic mutations, but we now understand that disruptions in epigenetic regulatory mechanisms are prevalent in cancer as well. Unlike genetic mutations, however, epigenetic alterations are reversible, making them desirable therapeutic targets. The potential for diet, and bioactive dietary components, to target epigenetic pathways in cancer is now widely appreciated, but our understanding of how to utilize these compounds for effective chemopreventive strategies in humans is in its infancy. This review provides a brief overview of epigenetic regulation and the clinical applications of epigenetics in cancer. It then describes the capacity for dietary components to contribute to epigenetic regulation, with a focus on the efficacy of dietary epigenetic regulators as secondary cancer prevention strategies in humans. Lastly, it discusses the necessary precautions and challenges that will need to be overcome before the chemopreventive power of dietary-based intervention strategies can be fully harnessed.
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Affiliation(s)
- McKale Montgomery
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK,Address correspondence to MM (E-mail: )
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12
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Role of microRNA-15a-5p in the atherosclerotic inflammatory response and arterial injury improvement of diabetic by targeting FASN. Biosci Rep 2019; 39:BSR20181852. [PMID: 31182467 PMCID: PMC6603278 DOI: 10.1042/bsr20181852] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 04/10/2019] [Accepted: 05/31/2019] [Indexed: 12/17/2022] Open
Abstract
The present study aims to investigate the mechanism of miR-15a-5p in the atherosclerotic (AS) inflammatory response and arterial injury improvement in diabetic rats by regulating fatty acid synthase (FASN). Initially, bioinformatics tools were applied to evaluate miRNAs and genes correlating with AS, and the target relation between miRNAs and FASN was measured using the Dual-Luciferase Reporter Assay. Subsequently the diabetic AS rat model was established and the surviving rats were divided into: negative control (NC), miR-15a-5p mimic, miR-15a-5p inhibitor, sh-FASN and miR-15a-5p + sh-FASN groups. Then a series of experiments were performed to examine the degree of AS in each group. The results revealed that compared with the NC group, the expressions of C-reactive protein (CRP), interleukin 6 (IL-6), intercellular cell adhesion molecule-1 (ICAM1) in rat arterial tissue, as well as the levels of low-density lipoprotein cholesterol (LDL-C), blood glucose (BG), triglycerides (TG), total cholesterol (TC) and Homocysteine (Hcy) in rat serum, were increased after inhibiting miR-15a-5p, while the level of high-density lipoprotein cholesterol (HDL-C) was decreased and the fat storage area was enlarged after this treatment (P<0.05). In the miR-15a-5p mimic and sh-FASN groups, serum HDL-C levels were increased and the fat storage areas in arteries were reduced. The levels of CRP, IL-6, ICAM1 in rat arterial tissue, along with the levels of LDL-C, BG, TG, TC and Hcy in rat serum, were decreased (P<0.05). Hematoxylin and Eosin (HE) staining and transmission electron microscopy (TEM) results showed AS lesions to be apparent in the arteries of rats in both the NC and miR-15a-5p inhibitor groups, but that in miR-15a-5p and sh-FASN group were improved, the miR-15a-5p mimic + sh-FASN group showed the most obvious improvement. Taken together, miR-15a-5p alleviates the inflammation response and arterial injury in diabetic AS rats by targeting FASN.
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13
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Wang D, Sun-Waterhouse D, Li F, Xin L, Li D. MicroRNAs as molecular targets of quercetin and its derivatives underlying their biological effects: A preclinical strategy. Crit Rev Food Sci Nutr 2018; 59:2189-2201. [DOI: 10.1080/10408398.2018.1441123] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Dan Wang
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, P.R. China
- Shandong Institute of Pomology, Taian, P.R. China
| | - Dongxiao Sun-Waterhouse
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, P.R. China
- School of Chemical Sciences, the University of Auckland, New Zealand
| | - Feng Li
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, P.R. China
| | - Li Xin
- Shandong Institute of Pomology, Taian, P.R. China
| | - Dapeng Li
- College of Food Science and Engineering, Shandong Agricultural University, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Taian, P.R. China
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14
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Hou TY, Davidson LA, Kim E, Fan YY, Fuentes NR, Triff K, Chapkin RS. Nutrient-Gene Interaction in Colon Cancer, from the Membrane to Cellular Physiology. Annu Rev Nutr 2017; 36:543-70. [PMID: 27431370 DOI: 10.1146/annurev-nutr-071715-051039] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The International Agency for Research on Cancer recently released an assessment classifying red and processed meat as "carcinogenic to humans" on the basis of the positive association between increased consumption and risk for colorectal cancer. Diet, however, can also decrease the risk for colorectal cancer and be used as a chemopreventive strategy. Bioactive dietary molecules, such as n-3 polyunsaturated fatty acids, curcumin, and fermentable fiber, have been proposed to exert chemoprotective effects, and their molecular mechanisms have been the focus of research in the dietary/chemoprevention field. Using these bioactives as examples, this review surveys the proposed mechanisms by which they exert their effects, from the nucleus to the cellular membrane. In addition, we discuss emerging technologies involving the culturing of colonic organoids to study the physiological effects of dietary bioactives. Finally, we address future challenges to the field regarding the identification of additional molecular mechanisms and other bioactive dietary molecules that can be utilized in our fight to reduce the incidence of colorectal cancer.
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Affiliation(s)
- Tim Y Hou
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843
| | - Laurie A Davidson
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843.,Center for Translational Environmental Health Research, Texas A&M University, College Station, Texas 77843
| | - Eunjoo Kim
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Molecular and Cellular Medicine, Texas A&M University, College Station, Texas 77843
| | - Yang-Yi Fan
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843
| | - Natividad R Fuentes
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Faculty of Toxicology, Texas A&M University, College Station, Texas 77843
| | - Karen Triff
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843;
| | - Robert S Chapkin
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843.,Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843.,Faculty of Toxicology, Texas A&M University, College Station, Texas 77843.,Center for Translational Environmental Health Research, Texas A&M University, College Station, Texas 77843
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15
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Ramos-Lopez O, Milagro FI, Allayee H, Chmurzynska A, Choi MS, Curi R, De Caterina R, Ferguson LR, Goni L, Kang JX, Kohlmeier M, Marti A, Moreno LA, Pérusse L, Prasad C, Qi L, Reifen R, Riezu-Boj JI, San-Cristobal R, Santos JL, Martínez JA. Guide for Current Nutrigenetic, Nutrigenomic, and Nutriepigenetic Approaches for Precision Nutrition Involving the Prevention and Management of Chronic Diseases Associated with Obesity. JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS 2017; 10:43-62. [PMID: 28689206 DOI: 10.1159/000477729] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chronic diseases, including obesity, are major causes of morbidity and mortality in most countries. The adverse impacts of obesity and associated comorbidities on health remain a major concern due to the lack of effective interventions for prevention and management. Precision nutrition is an emerging therapeutic approach that takes into account an individual's genetic and epigenetic information, as well as age, gender, or particular physiopathological status. Advances in genomic sciences are contributing to a better understanding of the role of genetic variants and epigenetic signatures as well as gene expression patterns in the development of diverse chronic conditions, and how they may modify therapeutic responses. This knowledge has led to the search for genetic and epigenetic biomarkers to predict the risk of developing chronic diseases and personalizing their prevention and treatment. Additionally, original nutritional interventions based on nutrients and bioactive dietary compounds that can modify epigenetic marks and gene expression have been implemented. Although caution must be exercised, these scientific insights are paving the way for the design of innovative strategies for the control of chronic diseases accompanying obesity. This document provides a number of examples of the huge potential of understanding nutrigenetic, nutrigenomic, and nutriepigenetic roles in precision nutrition.
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Affiliation(s)
- Omar Ramos-Lopez
- Department of Molecular Biology in Medicine, Civil Hospital of Guadalajara "Fray Antonio Alcalde" and Health Sciences University Center, University of Guadalajara, Guadalajara, Mexico
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16
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Expression profiling indicating low selenium-sensitive microRNA levels linked to cell cycle and cell stress response pathways in the CaCo-2 cell line. Br J Nutr 2017; 117:1212-1221. [PMID: 28571588 DOI: 10.1017/s0007114517001143] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Se is an essential micronutrient for human health, and fluctuations in Se levels and the potential cellular dysfunction associated with it may increase the risk for disease. Although Se has been shown to influence several biological pathways important in health, little is known about the effect of Se on the expression of microRNA (miRNA) molecules regulating these pathways. To explore the potential role of Se-sensitive miRNA in regulating pathways linked with colon cancer, we profiled the expression of 800 miRNA in the CaCo-2 human adenocarcinoma cell line in response to a low-Se (72 h at <40 nm) environment using nCounter direct quantification. These data were then examined using a range of in silico databases to identify experimentally validated miRNA-mRNA interactions and the biological pathways involved. We identified ten Se-sensitive miRNA (hsa-miR-93-5p, hsa-miR-106a-5p, hsa-miR-205-5p, hsa-miR-200c-3p, hsa-miR-99b-5p, hsa-miR-302d-3p, hsa-miR-373-3p, hsa-miR-483-3p, hsa-miR-512-5p and hsa-miR-4454), which regulate 3588 mRNA in key pathways such as the cell cycle, the cellular response to stress, and the canonical Wnt/β-catenin, p53 and ERK/MAPK signalling pathways. Our data show that the effects of low Se on biological pathways may, in part, be due to these ten Se-sensitive miRNA. Dysregulation of the cell cycle and of the stress response pathways due to low Se may influence key genes involved in carcinogenesis.
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17
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Del Cornò M, Donninelli G, Conti L, Gessani S. Linking Diet to Colorectal Cancer: The Emerging Role of MicroRNA in the Communication between Plant and Animal Kingdoms. Front Microbiol 2017; 8:597. [PMID: 28424679 PMCID: PMC5380760 DOI: 10.3389/fmicb.2017.00597] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 03/23/2017] [Indexed: 12/14/2022] Open
Abstract
Environmental and lifestyle factors, including diet and nutritional habits have been strongly linked to colorectal cancer (CRC). Of note, unhealthy dietary habits leading to adiposity represent a main risk factor for CRC and are associated with a chronic low-grade inflammatory status. Inflammation is a hallmark of almost every type of cancer and can be modulated by several food compounds exhibiting either protective or promoting effects. However, in spite of an extensive research, the underlying mechanisms by which dietary patterns or bioactive food components may influence tumor onset and outcome have not been fully clarified yet. Growing evidence indicates that diet, combining beneficial substances and potentially harmful ingredients, has an impact on the expression of key regulators of gene expression such as the non-coding RNA (ncRNA). Since the expression of these molecules is deranged in chronic inflammation and cancer, modulating their expression may strongly influence the cancer phenotype and outcomes. In addition, the recently acquired knowledge on the existence of intricate inter-kingdom communication networks, is opening new avenues for a deeper understanding of the intimate relationships linking diet to CRC. In this novel scenario, diet-modulated ncRNA may represent key actors in the interaction between plant and animal kingdoms, capable of influencing disease onset and outcome. In this review, we will summarize the studies demonstrating a link between bioactive food components, including food-derived, microbiota-processed, secondary metabolites, and host ncRNA. We will focus on microRNA, highlighting how this plant/animal inter-kingdom cross-talk may have an impact on CRC establishment and progression.
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Affiliation(s)
- Manuela Del Cornò
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di SanitáRome, Italy.,Center for Gender-Specific Medicine, Istituto Superiore di SanitáRome, Italy
| | - Gloria Donninelli
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di SanitáRome, Italy.,Center for Gender-Specific Medicine, Istituto Superiore di SanitáRome, Italy
| | - Lucia Conti
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di SanitáRome, Italy.,Center for Gender-Specific Medicine, Istituto Superiore di SanitáRome, Italy
| | - Sandra Gessani
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di SanitáRome, Italy.,Center for Gender-Specific Medicine, Istituto Superiore di SanitáRome, Italy
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18
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Chakraborty N, Muhie S, Kumar R, Gautam A, Srinivasan S, Sowe B, Dimitrov G, Miller SA, Jett M, Hammamieh R. Contributions of polyunsaturated fatty acids (PUFA) on cerebral neurobiology: an integrated omics approach with epigenomic focus. J Nutr Biochem 2017; 42:84-94. [PMID: 28152499 DOI: 10.1016/j.jnutbio.2016.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 11/07/2016] [Accepted: 12/15/2016] [Indexed: 01/03/2023]
Abstract
The epigenetic landscape is vulnerable to diets. Here, we investigated the influence of different polyunsaturated fatty acids (PUFA) dietary supplements on rodents' nervous system development and functions and potential consequences to neurodegenerative disorders. Our previous nutrigenomics study showed significant impact of high n-3 PUFA-enriched diet (ERD) on synaptogenesis and various neuromodulators. The present study introduced a second equicaloric diet with n-6 PUFA balanced by n-3 PUFA (BLD). The typical lab diet with high n-6 PUFA was the baseline. Transcriptomic and epigenetic investigations, namely microRNA (miRNA) and DNA methylation assays, were carried out on the hemibrains of the C57BL/6j mice fed on any of these three diets from their neonatal age to midlife. Integrating the multiomics data, we focused on the genes encoding both hypermethylated CpG islands and suppressed transcripts. In addition, miRNA:mRNA pairs were screened to identify those overexpressed miRNAs that reduced transcriptional expressions. The majority of miRNAs overexpressed by BLD are associated with Alzheimer's and schizophrenia. BLD implicated long-term potentiation, memory, cognition and learning, primarily via hypermethylation of those genes that enrich the calcium-releasing neurotransmitters. ERD caused hypermethylation of those genes that enrich cytoskeletal development networks and promote the formation of neuronal precursors. We drew the present observations in light of our limited knowledge regarding the epigenetic influences on biofunctions. A more comprehensive study is essential to understand the broad influences of dietary supplements and to suggest optimal dietary solutions for neurological disorders.
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Affiliation(s)
- Nabarun Chakraborty
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010; The Geneva Foundation, Tacoma, WA, USA 98402
| | - Seid Muhie
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010; The Geneva Foundation, Tacoma, WA, USA 98402
| | - Raina Kumar
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010; Advanced Biomedical Computing Center, Frederick National Laboratory for Cancer Research, Frederick, MD, USA 21702
| | - Aarti Gautam
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010
| | - Seshamalini Srinivasan
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010; The Geneva Foundation, Tacoma, WA, USA 98402
| | - Bintu Sowe
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010; The Geneva Foundation, Tacoma, WA, USA 98402
| | - George Dimitrov
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010; Advanced Biomedical Computing Center, Frederick National Laboratory for Cancer Research, Frederick, MD, USA 21702
| | - Stacy-Ann Miller
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010; The Geneva Foundation, Tacoma, WA, USA 98402
| | - Marti Jett
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010
| | - Rasha Hammamieh
- Integrative Systems Biology, US Army Center for Environmental Health Research, Frederick, MD, USA 21702-5010.
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19
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Activation of autophagy and PPARγ protect colon cancer cells against apoptosis induced by interactive effects of butyrate and DHA in a cell type-dependent manner: The role of cell differentiation. J Nutr Biochem 2017; 39:145-155. [DOI: 10.1016/j.jnutbio.2016.09.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 07/28/2016] [Accepted: 09/02/2016] [Indexed: 02/07/2023]
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20
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Gavrilas LI, Ionescu C, Tudoran O, Lisencu C, Balacescu O, Miere D. The Role of Bioactive Dietary Components in Modulating miRNA Expression in Colorectal Cancer. Nutrients 2016; 8:nu8100590. [PMID: 27681738 PMCID: PMC5083978 DOI: 10.3390/nu8100590] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 08/31/2016] [Accepted: 09/18/2016] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer is the third most common cancer in the world and considered to be one of the most diet-related types of cancer. Extensive research has been conducted but still the link between diet and colorectal cancer is complex. Recent studies have highlight microRNAs (miRNAs) as key players in cancer-related pathways in the context of dietary modulation. MicroRNAs are involved in most biological processes related to tumor development and progression; therefore, it is of great interest to understand the underlying mechanisms by which dietary patterns and components influence the expression of these powerful molecules in colorectal cancer. In this review, we discuss relevant dietary patterns in terms of miRNAs modulation in colorectal cancer, as well as bioactive dietary components able to modify gene expression through changes in miRNA expression. Furthermore, we emphasize on protective components such as resveratrol, curcumin, quercetin, α-mangostin, omega-3 fatty acids, vitamin D and dietary fiber, with a focus on the molecular mechanisms in the context of prevention and even treatment. In addition, several bioactive dietary components that have the ability to re-sensitize treatment resistant cells are described.
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Affiliation(s)
- Laura I Gavrilas
- Department of Bromatology, Hygiene, Nutrition, University of Medicine and Pharmacy "Iuliu Hatieganu", Marinescu Street 23, Cluj-Napoca 400337, Romania.
| | - Corina Ionescu
- Department of Pharmaceutical Biochemistry and Clinical Laboratory, University of Medicine and Pharmacy "Iuliu Hatieganu", Louis Pasteur Street 6, Cluj-Napoca 400349, Romania.
| | - Oana Tudoran
- Department of Functional Genomics, Proteomics and Experimental Pathology, The Oncology Institute "Prof. Dr. Ion Chiricuta", Republicii Street 34-36, Cluj-Napoca 400015, Romania.
| | - Cosmin Lisencu
- Department of Surgical and Gynecological Oncology, University of Medicine and Pharmacy "Iuliu Hatieganu", Republicii Street 34-36, Cluj-Napoca 400015, Romania.
- Department of Surgery, The Oncology Institute "Prof. Dr. Ion Chiricuta", Republicii Street 34-36, Cluj-Napoca 400015, Romania.
| | - Ovidiu Balacescu
- Department of Functional Genomics, Proteomics and Experimental Pathology, The Oncology Institute "Prof. Dr. Ion Chiricuta", Republicii Street 34-36, Cluj-Napoca 400015, Romania.
| | - Doina Miere
- Department of Bromatology, Hygiene, Nutrition, University of Medicine and Pharmacy "Iuliu Hatieganu", Marinescu Street 23, Cluj-Napoca 400337, Romania.
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21
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Hu MH, Ma CY, Wang XM, Ye CD, Zhang GX, Chen L, Wang JG. MicroRNA-126 inhibits tumor proliferation and angiogenesis of hepatocellular carcinoma by down-regulating EGFL7 expression. Oncotarget 2016; 7:66922-66934. [PMID: 27611944 PMCID: PMC5341847 DOI: 10.18632/oncotarget.11877] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 08/12/2016] [Indexed: 12/25/2022] Open
Abstract
This study aims to explore the effects of microRNA-126 (miR-126) on tumor proliferation and angiogenesis of hepatocellular carcinoma (HCC) by targeting EGFL7. HCC tissues and adjacent normal tissues were obtained from 71 HCC patients. Immunohistochemistry (IHC) was conducted to detect expressions of EGFL7 and VEGF and the micro-vessel density (MVD). HCC cell lines were collected and assigned into the blank, miR-126 mimics, miR-126 inhibitors, miR-126 mimics negative control (NC), miR-126 inhibitors NC, si-EGFL7, and miR-126 inhibitors + si-EGFL7 groups. Expressions of miR-126 and EGFL7 mRNA were detected by qRT-PCR assay. The protein expressions of EGFL7 and VEGF were measured by Western blotting. MTT assay was used to measure the proliferation of HCC cells. Tumor xenograft model in nude mice was utilized to evaluate the influence of miR-126 on tumor growth. HCC tissues had higher miR-126 expression and lower EGFL7 mRNA expression than adjacent normal tissues. Compared with the blank, miR-126 mimic NC, miR-126 inhibitor NC and miR-126 inhibitors + si-EGFL7 groups, the protein expressions of EGFL7 and VEGF and cell proliferation were reduced in the miR-126 mimics and si-EGFL7 groups, while the opposite trend was found in the miR-126 inhibitors group. Compared with the blank and miR-126 inhibitors + siRNA-EGFL7 groups, tumor size, tumor weight, and MVD of transplanted tumors in nude mice were significantly reduced in the miR-126 mimics and siRNA-EGFL7 groups, while the opposite trend was found in the miR-126 inhibitors group. In conclusion, miR-126 could inhibit tumor proliferation and angiogenesis of HCC by down-regulating EGFL7 expression.
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Affiliation(s)
- Ming-Hua Hu
- 1 Department of Surgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, P.R. China
| | - Chen-Yang Ma
- 1 Department of Surgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, P.R. China
| | - Xiao-Ming Wang
- 1 Department of Surgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, P.R. China
| | - Chen-Dong Ye
- 2 Department of Surgery, The Second Affiliated Hospital, Wannan Medical College, Wuhu 241001, P.R. China
| | - Guang-Xian Zhang
- 1 Department of Surgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, P.R. China
| | - Lin Chen
- 1 Department of Surgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, P.R. China
| | - Jin-Guo Wang
- 1 Department of Surgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, P.R. China
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22
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Zoh RS, Mallick B, Ivanov I, Baladandayuthapani V, Manyam G, Chapkin RS, Lampe JW, Carroll RJ. PCAN: Probabilistic correlation analysis of two non-normal data sets. Biometrics 2016; 72:1358-1368. [PMID: 27037601 DOI: 10.1111/biom.12516] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 12/01/2015] [Accepted: 02/01/2016] [Indexed: 11/29/2022]
Abstract
Most cancer research now involves one or more assays profiling various biological molecules, e.g., messenger RNA and micro RNA, in samples collected on the same individuals. The main interest with these genomic data sets lies in the identification of a subset of features that are active in explaining the dependence between platforms. To quantify the strength of the dependency between two variables, correlation is often preferred. However, expression data obtained from next-generation sequencing platforms are integer with very low counts for some important features. In this case, the sample Pearson correlation is not a valid estimate of the true correlation matrix, because the sample correlation estimate between two features/variables with low counts will often be close to zero, even when the natural parameters of the Poisson distribution are, in actuality, highly correlated. We propose a model-based approach to correlation estimation between two non-normal data sets, via a method we call Probabilistic Correlations ANalysis, or PCAN. PCAN takes into consideration the distributional assumption about both data sets and suggests that correlations estimated at the model natural parameter level are more appropriate than correlations estimated directly on the observed data. We demonstrate through a simulation study that PCAN outperforms other standard approaches in estimating the true correlation between the natural parameters. We then apply PCAN to the joint analysis of a microRNA (miRNA) and a messenger RNA (mRNA) expression data set from a squamous cell lung cancer study, finding a large number of negative correlation pairs when compared to the standard approaches.
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Affiliation(s)
- Roger S Zoh
- Department of Epidemiology and Biostatistics, Texas A&M University, College Station, Texas, U.S.A
| | - Bani Mallick
- Department of Statistics, Texas A&M University, College Station, Texas, U.S.A
| | - Ivan Ivanov
- Department of Veterinary Medicine and Biomedical Sciences, Texas A&M University, Texas, U.S.A
| | | | - Ganiraju Manyam
- The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, Texas, U.S.A
| | - Robert S Chapkin
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, Texas, U.S.A
| | - Johanna W Lampe
- Department of Epidemiology, University of Washington and the Fred Hutchinson Cancer Research Center Seattle, Washington, U.S.A
| | - Raymond J Carroll
- Department of Statistics, Texas A&M University, College Station, Texas, U.S.A
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23
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Serini S, Ottes Vasconcelos R, Fasano E, Calviello G. Epigenetic regulation of gene expression and M2 macrophage polarization as new potential omega-3 polyunsaturated fatty acid targets in colon inflammation and cancer. Expert Opin Ther Targets 2016; 20:843-58. [PMID: 26781478 DOI: 10.1517/14728222.2016.1139085] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION It has become increasingly clear that dietary habits may affect the risk/progression of chronic diseases with a pathogenic inflammatory component, such as colorectal cancer. Considerable attention has been directed toward the ability of nutritional agents to target key molecular pathways involved in these inflammatory-related diseases. AREAS COVERED ω-3 Polyunsaturated fatty acids (PUFA) and their oxidative metabolites have attracted considerable interest as possible anti-inflammatory and anti-cancer agents, especially in areas such as the large bowel, where the influence of orally introduced substances is high and tumors show deranged PUFA patterns. On this basis, we have analyzed pre-clinical findings that have recently revealed new insight into the molecular pathways targeted by ω-3 PUFA. EXPERT OPINION The findings analyzed herein demonstrate that ω-3 PUFA may exert beneficial effects by targeting the epigenetic regulation of gene expression and altering M2 macrophage polarization during the inflammatory response. These mechanisms need to be better explored in the large bowel, and further studies could better clarify their role and the potential of dietary interventions with ω-3 PUFA in the large bowel. The epigenomic mechanism is discussed in view of the potential of ω-3 PUFA to enhance the efficacy of other agents used in the therapy of colorectal cancer.
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Affiliation(s)
- Simona Serini
- a Institute of General Pathology , Università Cattolica del Sacro Cuore , Rome , Italy
| | - Renata Ottes Vasconcelos
- a Institute of General Pathology , Università Cattolica del Sacro Cuore , Rome , Italy.,b Institute of Biological Sciences , Federal University of Rio Grande - FURG , Rio Grande , Brazil
| | - Elena Fasano
- c Department of Internal Medicine, Unit of Medical Oncology , Università Cattolica del Sacro Cuore , Rome , Italy
| | - Gabriella Calviello
- a Institute of General Pathology , Università Cattolica del Sacro Cuore , Rome , Italy
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24
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Eltweri AM, Thomas AL, Metcalfe M, Calder PC, Dennison AR, Bowrey DJ. Potential applications of fish oils rich in omega-3 polyunsaturated fatty acids in the management of gastrointestinal cancer. Clin Nutr 2016; 36:65-78. [PMID: 26833289 DOI: 10.1016/j.clnu.2016.01.007] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 12/01/2015] [Accepted: 01/09/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Despite advances in chemotherapeutic agents and surgical approaches for its management, gastrointestinal cancer still accounts for 27% of new cancer cases and 35% of cancer related mortality worldwide. Omega-3 polyunsaturated fatty acids (PUFAs) specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have anti-inflammatory and anticancer activities and are used as immuno-nutrients. METHODS A literature search was conducted to identify primary research reporting on applications of the omega-3 PUFAs in gastrointestinal cancer. RESULTS Reported laboratory studies indicate a clear role for omega-3 PUFAs in preventing cancer development at various stages including cancer cell proliferation, survival, angiogenesis, inflammation and metastasis. In clinical settings, omega-3 PUFAs have been reported to improve the immune response, maintain lean body mass, improve quality of life and improve overall survival in patients with colorectal and pancreatic cancer. In contrast to other GI cancers, there is a strong connection between inflammation and oesophageal cancer. CONCLUSIONS Little work has been done exploring the role for omega-3 PUFAs in oesophageal cancer prevention and management. The authors are conducting a clinical trial investigating the use of parenteral omega-3 PUFAs supplementary to the standard of care (epirubicin, oxaliplatin and capecitabine palliative chemotherapy) in patients with advanced oesophagogastric cancer as a promising new therapeutic approach.
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Affiliation(s)
- A M Eltweri
- Department of Surgery, University Hospitals of Leicester, Leicester, LE1 5WW, United Kingdom.
| | - A L Thomas
- Department of Cancer Studies, University of Leicester, LE2 7LX, United Kingdom
| | - M Metcalfe
- Department of Surgery, University Hospitals of Leicester, Leicester, LE1 5WW, United Kingdom
| | - P C Calder
- Human Development & Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom; NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - A R Dennison
- Department of Surgery, University Hospitals of Leicester, Leicester, LE1 5WW, United Kingdom
| | - D J Bowrey
- Department of Surgery, University Hospitals of Leicester, Leicester, LE1 5WW, United Kingdom
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25
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Shah MS, Kim E, Davidson LA, Knight JM, Zoh RS, Goldsby JS, Callaway ES, Zhou B, Ivanov I, Chapkin RS. Data describing the effects of dietary bioactive agents on colonic stem cell microRNA and mRNA expression. Data Brief 2015; 6:398-404. [PMID: 26862588 PMCID: PMC4707287 DOI: 10.1016/j.dib.2015.12.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/16/2015] [Accepted: 12/16/2015] [Indexed: 10/27/2022] Open
Abstract
With the identification of Lgr5 as a definitive marker for intestinal stem cells, we used the highly novel, recently described, Lgr5-EGFP-IRES-cre ER (T2) knock in mouse model. Mice were injected with azoxymethane (AOM, a colon carcinogen) or saline (control) and fed a chemo-protective diet containing n-3 fatty acids and fermentable fiber (n-3 PUFA+pectin) or a control diet (n-6 PUFA + cellulose). Single cells were isolated from colonic mucosa crypts and three discrete populations of cells were collected via fluorescence activated cell sorting (FACS): Lgr5(high) (stem cells), Lgr5(low) (daughter cells) and Lgr5(negative) (differentiated cells). microRNA profiling and RNA sequencing were performed from the same sample and analyzed. These data refer to 'Comparative effects of diet and carcinogen on microRNA expression in the stem cell niche of the mouse colonic crypt' (Shah et al., 2016) [5].
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Affiliation(s)
- Manasvi S Shah
- Program in Integrative Nutrition & Complex Diseases, United States; Intercollegiate Faculty of Genetics, United States; Divison of Endocrinology, Boston Children's Hospital, United States; Department of Pediatrics, Harvard Medical School, Boston, MA, United States
| | - Eunjoo Kim
- Program in Integrative Nutrition & Complex Diseases, United States; Department of Molecular and Cellular Medicine, United States
| | | | - Jason M Knight
- Program in Integrative Nutrition & Complex Diseases, United States; Department of Electrical Engineering, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
| | - Roger S Zoh
- Program in Integrative Nutrition & Complex Diseases, United States; Department of Statistics, United States
| | - Jennifer S Goldsby
- Program in Integrative Nutrition & Complex Diseases, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
| | | | - Beyian Zhou
- Department of Veterinary Physiology & Pharmacology, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
| | - Ivan Ivanov
- Program in Integrative Nutrition & Complex Diseases, United States; Department of Veterinary Physiology & Pharmacology, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
| | - Robert S Chapkin
- Program in Integrative Nutrition & Complex Diseases, United States; Intercollegiate Faculty of Genetics, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
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Tang Z, Yang Y, Wang Z, Zhao S, Mu Y, Li K. Integrated analysis of miRNA and mRNA paired expression profiling of prenatal skeletal muscle development in three genotype pigs. Sci Rep 2015; 5:15544. [PMID: 26496978 PMCID: PMC4620456 DOI: 10.1038/srep15544] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Accepted: 09/28/2015] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRNAs) play a vital role in muscle development by binding to messenger RNAs (mRNAs). Based on prenatal skeletal muscle at 33, 65 and 90 days post-coitus (dpc) from Landrace, Tongcheng and Wuzhishan pigs, we carried out integrated analysis of miRNA and mRNA expression profiling. We identified 33, 18 and 67 differentially expressed miRNAs and 290, 91 and 502 mRNA targets in Landrace, Tongcheng and Wuzhishan pigs, respectively. Subsequently, 12 mRNAs and 3 miRNAs differentially expressed were validated using quantitative real-time PCR (qPCR), and 5 predicted miRNA targets were confirmed via dual luciferase reporter or western blot assays. We identified a set of miRNAs and mRNA genes differentially expressed in muscle development. Gene ontology (GO) enrichment analysis suggests that the miRNA targets are primarily involved in muscle contraction, muscle development and negative regulation of cell proliferation. Our data indicated that more mRNAs are regulated by miRNAs at earlier stages than at later stages of muscle development. Landrace and Tongcheng pigs also had longer phases of myoblast proliferation than Wuzhishan pigs. This study will be helpful to further explore miRNA-mRNA interactions in myogenesis and aid to uncover the molecular mechanisms of muscle development and phenotype variance in pigs.
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Affiliation(s)
- Zhonglin Tang
- The State Key Laboratory for Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.,Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518124, China
| | - Yalan Yang
- The State Key Laboratory for Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.,Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518124, China
| | - Zishuai Wang
- The State Key Laboratory for Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shuanping Zhao
- The State Key Laboratory for Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.,Institute of Animal Science, Anhui Academy of Agricultural Sciences, Hefei, 230031, P. R. China
| | - Yulian Mu
- The State Key Laboratory for Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Kui Li
- The State Key Laboratory for Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.,Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518124, China
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Shah MS, Kim E, Davidson LA, Knight JM, Zoh RS, Goldsby JS, Callaway ES, Zhou B, Ivanov I, Chapkin RS. Comparative effects of diet and carcinogen on microRNA expression in the stem cell niche of the mouse colonic crypt. Biochim Biophys Acta Mol Basis Dis 2015; 1862:121-34. [PMID: 26493444 DOI: 10.1016/j.bbadis.2015.10.012] [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: 04/03/2015] [Revised: 10/12/2015] [Accepted: 10/17/2015] [Indexed: 02/08/2023]
Abstract
There is mounting evidence that noncoding microRNAs (miRNA) are modulated by select chemoprotective dietary agents. For example, recently we demonstrated that the unique combination of dietary fish oil (containing n-3 fatty acids) plus pectin (fermented to butyrate in the colon) (FPA) up-regulates a subset of putative tumor suppressor miRNAs in intestinal mucosa, and down-regulates their predicted target genes following carcinogen exposure as compared to control (corn oil plus cellulose (CCA)) diet. To further elucidate the biological effects of diet and carcinogen modulated miR's in the colon, we verified that miR-26b and miR-203 directly target PDE4B and TCF4, respectively. Since perturbations in adult stem cell dynamics are generally believed to represent an early step in colon tumorigenesis and to better understand how the colonic stem cell population responds to environmental factors such as diet and carcinogen, we additionally determined the effects of the chemoprotective FPA diet on miRNAs and mRNAs in colonic stem cells obtained from Lgr5-EGFP-IRES-creER(T2) knock-in mice. Following global miRNA profiling, 26 miRNAs (P<0.05) were differentially expressed in Lgr5(high) stem cells as compared to Lgr5(negative) differentiated cells. FPA treatment up-regulated miR-19b, miR-26b and miR-203 expression as compared to CCA specifically in Lgr5(high) cells. In contrast, in Lgr5(negative) cells, only miR-19b and its indirect target PTK2B were modulated by the FPA diet. These data indicate for the first time that select dietary cues can impact stem cell regulatory networks, in part, by modulating the steady-state levels of miRNAs. To our knowledge, this is the first study to utilize Lgr5(+) reporter mice to determine the impact of diet and carcinogen on miRNA expression in colonic stem cells and their progeny.
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Affiliation(s)
- Manasvi S Shah
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States; Intercollegiate Faculty of Genetics, Texas A&M University, College Station, TX, United States; Divison of Endocrinology, Boston Children's Hospital, United States; Department of Pediatrics, Harvard Medical School, Boston, MA, United States
| | - Eunjoo Kim
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States; Departments of Molecular and Cellular Medicine, Texas A&M University, College Station, TX, United States
| | - Laurie A Davidson
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States
| | - Jason M Knight
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States; Electrical Engineering, Texas A&M University, College Station, TX, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
| | - Roger S Zoh
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States; Statistics, Texas A&M University, College Station, TX, United States
| | - Jennifer S Goldsby
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
| | - Evelyn S Callaway
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States
| | - Beyian Zhou
- Veterinary Physiology & Pharmacology, Texas A&M University, College Station, TX, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
| | - Ivan Ivanov
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States; Veterinary Physiology & Pharmacology, Texas A&M University, College Station, TX, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States
| | - Robert S Chapkin
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX, United States; Intercollegiate Faculty of Genetics, Texas A&M University, College Station, TX, United States; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, United States.
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28
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Hong MY, Turner ND, Murphy ME, Carroll RJ, Chapkin RS, Lupton JR. In vivo regulation of colonic cell proliferation, differentiation, apoptosis, and P27Kip1 by dietary fish oil and butyrate in rats. Cancer Prev Res (Phila) 2015; 8:1076-83. [PMID: 26323483 DOI: 10.1158/1940-6207.capr-15-0147] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 08/02/2015] [Indexed: 12/16/2022]
Abstract
We have shown that dietary fish oil is protective against experimentally induced colon cancer, and the protective effect is enhanced by coadministration of pectin. However, the underlying mechanisms have not been fully elucidated. We hypothesized that fish oil with butyrate, a pectin fermentation product, protects against colon cancer initiation by decreasing cell proliferation and increasing differentiation and apoptosis through a p27(Kip1)-mediated mechanism. Rats were provided diets of corn or fish oil, with/without butyrate, and terminated 12, 24, or 48 hours after azoxymethane (AOM) injection. Proliferation (Ki-67), differentiation (Dolichos Biflorus Agglutinin), apoptosis (TUNEL), and p27(Kip1) (cell-cycle mediator) were measured in the same cell within crypts in order to examine the coordination of cell cycle as a function of diet. DNA damage (N(7)-methylguanine) was determined by quantitative IHC analysis. Dietary fish oil decreased DNA damage by 19% (P = 0.001) and proliferation by 50% (P = 0.003) and increased differentiation by 56% (P = 0.039) compared with corn oil. When combined with butyrate, fish oil enhanced apoptosis 24 hours after AOM injection compared with a corn oil/butyrate diet (P = 0.039). There was an inverse relationship between crypt height and apoptosis in the fish oil/butyrate group (r = -0.53, P = 0.040). The corn oil/butyrate group showed a positive correlation between p27(Kip1) expression and proliferation (r = 0.61, P = 0.035). These results indicate the in vivo effect of butyrate on apoptosis and proliferation is dependent on dietary lipid source. These results demonstrate the presence of an early coordinated colonocyte response by which fish oil and butyrate protects against colon tumorigenesis.
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Affiliation(s)
- Mee Young Hong
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas. School of Food and Nutritional Sciences, San Diego State University, San Diego, California.
| | - Nancy D Turner
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas
| | - Mary E Murphy
- Deptartment of Statistics, Texas A&M University, College Station, Texas
| | - Raymond J Carroll
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas. Deptartment of Statistics, Texas A&M University, College Station, Texas
| | - Robert S Chapkin
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas
| | - Joanne R Lupton
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas
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30
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Humphreys KJ, Conlon MA, Young GP, Topping DL, Hu Y, Winter JM, Bird AR, Cobiac L, Kennedy NA, Michael MZ, Le Leu RK. Dietary manipulation of oncogenic microRNA expression in human rectal mucosa: a randomized trial. Cancer Prev Res (Phila) 2015; 7:786-95. [PMID: 25092886 DOI: 10.1158/1940-6207.capr-14-0053] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
High red meat (HRM) intake is associated with increased colorectal cancer risk, while resistant starch is probably protective. Resistant starch fermentation produces butyrate, which can alter microRNA (miRNA) levels in colorectal cancer cells in vitro; effects of red meat and resistant starch on miRNA expression in vivo were unknown. This study examined whether a HRM diet altered miRNA expression in rectal mucosa tissue of healthy volunteers, and if supplementation with butyrylated resistant starch (HRM+HAMSB) modified this response. In a randomized cross-over design, 23 volunteers undertook four 4-week dietary interventions; an HRM diet (300 g/day lean red meat) and an HRM+HAMSB diet (HRM with 40 g/day butyrylated high amylose maize starch), preceded by an entry diet and separated by a washout. Fecal butyrate increased with the HRM+HAMSB diet. Levels of oncogenic mature miRNAs, including miR17-92 cluster miRNAs and miR21, increased in the rectal mucosa with the HRM diet, whereas the HRM+HAMSB diet restored miR17-92 miRNAs, but not miR21, to baseline levels. Elevated miR17-92 and miR21 in the HRM diet corresponded with increased cell proliferation, and a decrease in miR17-92 target gene transcript levels, including CDKN1A. The oncogenic miR17-92 cluster is differentially regulated by dietary factors that increase or decrease risk for colorectal cancer, and this may explain, at least in part, the respective risk profiles of HRM and resistant starch. These findings support increased resistant starch consumption as a means of reducing risk associated with an HRM diet.
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Affiliation(s)
- Karen J Humphreys
- Flinders Centre for Innovation in Cancer, School of Medicine, Flinders University, Flinders Medical Centre, Adelaide, South Australia, Australia.
| | - Michael A Conlon
- Preventative Health National Research Flagship, CSIRO, and CSIRO Animal, Food and Health Sciences, Adelaide, South Australia, Australia
| | - Graeme P Young
- Flinders Centre for Innovation in Cancer, School of Medicine, Flinders University, Flinders Medical Centre, Adelaide, South Australia, Australia
| | - David L Topping
- Preventative Health National Research Flagship, CSIRO, and CSIRO Animal, Food and Health Sciences, Adelaide, South Australia, Australia
| | - Ying Hu
- Flinders Centre for Innovation in Cancer, School of Medicine, Flinders University, Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Jean M Winter
- Flinders Centre for Innovation in Cancer, School of Medicine, Flinders University, Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Anthony R Bird
- Preventative Health National Research Flagship, CSIRO, and CSIRO Animal, Food and Health Sciences, Adelaide, South Australia, Australia
| | - Lynne Cobiac
- Preventative Health National Research Flagship, CSIRO, and CSIRO Animal, Food and Health Sciences, Adelaide, South Australia, Australia
| | - Nicholas A Kennedy
- Department of Gastroenterology, Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Michael Z Michael
- Flinders Centre for Innovation in Cancer, School of Medicine, Flinders University, Flinders Medical Centre, Adelaide, South Australia, Australia
| | - Richard K Le Leu
- Preventative Health National Research Flagship, CSIRO, and CSIRO Animal, Food and Health Sciences, Adelaide, South Australia, Australia.
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31
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Ostan R, Lanzarini C, Pini E, Scurti M, Vianello D, Bertarelli C, Fabbri C, Izzi M, Palmas G, Biondi F, Martucci M, Bellavista E, Salvioli S, Capri M, Franceschi C, Santoro A. Inflammaging and cancer: a challenge for the Mediterranean diet. Nutrients 2015; 7:2589-621. [PMID: 25859884 PMCID: PMC4425163 DOI: 10.3390/nu7042589] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 03/19/2015] [Accepted: 03/24/2015] [Indexed: 12/19/2022] Open
Abstract
Aging is considered the major risk factor for cancer, one of the most important mortality causes in the western world. Inflammaging, a state of chronic, low-level systemic inflammation, is a pervasive feature of human aging. Chronic inflammation increases cancer risk and affects all cancer stages, triggering the initial genetic mutation or epigenetic mechanism, promoting cancer initiation, progression and metastatic diffusion. Thus, inflammaging is a strong candidate to connect age and cancer. A corollary of this hypothesis is that interventions aiming to decrease inflammaging should protect against cancer, as well as most/all age-related diseases. Epidemiological data are concordant in suggesting that the Mediterranean Diet (MD) decreases the risk of a variety of cancers but the underpinning mechanism(s) is (are) still unclear. Here we review data indicating that the MD (as a whole diet or single bioactive nutrients typical of the MD) modulates multiple interconnected processes involved in carcinogenesis and inflammatory response such as free radical production, NF-κB activation and expression of inflammatory mediators, and the eicosanoids pathway. Particular attention is devoted to the capability of MD to affect the balance between pro- and anti-inflammaging as well as to emerging topics such as maintenance of gut microbiota (GM) homeostasis and epigenetic modulation of oncogenesis through specific microRNAs.
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Affiliation(s)
- Rita Ostan
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Catia Lanzarini
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
- Interdepartmental Centre "L. Galvani" (CIG) University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Elisa Pini
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Maria Scurti
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Dario Vianello
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Claudia Bertarelli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Cristina Fabbri
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Massimo Izzi
- Interdepartmental Centre "L. Galvani" (CIG) University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Giustina Palmas
- Interdepartmental Centre "L. Galvani" (CIG) University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Fiammetta Biondi
- Interdepartmental Centre "L. Galvani" (CIG) University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Morena Martucci
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Elena Bellavista
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
- Interdepartmental Centre "L. Galvani" (CIG) University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Stefano Salvioli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
- Interdepartmental Centre "L. Galvani" (CIG) University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Miriam Capri
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
- Interdepartmental Centre "L. Galvani" (CIG) University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
| | - Claudio Franceschi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
- IRCCS, Institute of Neurological Sciences, Via Altura 3, 40139 Bologna, Italy.
- National Research Council of Italy, CNR, Institute for Organic Synthesis and Photoreactivity (ISOF), Via P. Gobetti 101, 40129 Bologna, Italy.
| | - Aurelia Santoro
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Via San Giacomo 12, 40126 Bologna, Italy.
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Nair S, Kong ANT. Architecture of Signature miRNA Regulatory Networks in Cancer Chemoprevention. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s40495-014-0014-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Tsoukas MA, Ko BJ, Witte TR, Dincer F, Hardman WE, Mantzoros CS. Dietary walnut suppression of colorectal cancer in mice: Mediation by miRNA patterns and fatty acid incorporation. J Nutr Biochem 2015; 26:776-83. [PMID: 25882694 DOI: 10.1016/j.jnutbio.2015.02.009] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 01/29/2015] [Accepted: 02/11/2015] [Indexed: 12/18/2022]
Abstract
Colorectal cancer, unlike many other malignancies, may be preventable. Recent studies have demonstrated an inverse association between nut consumption and incidence of colon cancer; however, the underlying mechanisms are not fully understood. An emerging concept suggests that microribonucleic acids (miRNAs) may help explain the relationship between walnut consumption and decreased colorectal neoplasia risk. Seven days after HT-29 colon cancer cell injection, mice were randomized to either control or walnut diets for 25 days of diet treatment. Thirty samples of tumor and of omental adipose were analyzed to determine changes in lipid composition in each dietary group. In the tumors of the walnut-containing diet, we found significant increases in α-linolenic, eicosapentaenoic, docosahexaenoic and total omega-3 acids, and a decrease in arachidonic acid, as compared to the control diet. Final tumor size measured at sacrifice was negatively associated with percentage of total omega-3 fatty acid composition (r=-0.641, P=.001). MicroRNA expression analysis of colorectal tumor tissue revealed decreased expression of miRNAs 1903, 467c and 3068 (P<.05) and increased expression of miRNA 297a* (P=.0059) in the walnut-treated group as compared to control diet. Our results indicate that changes in the miRNA expression profiles likely affect target gene transcripts involved in pathways of anti-inflammation, antivascularization, antiproliferation and apoptosis. We also demonstrate the incorporation of protective fatty acids into colonic epithelium of walnut-fed mice, which may independently alter miRNA expression profiles itself. Future studies of the mechanism of widespread miRNA regulation by walnut consumption are needed to offer potential prognostic and therapeutic targets.
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Affiliation(s)
- Michael A Tsoukas
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA; Section of Endocrinology, Boston VA Healthcare system, Boston, MA.
| | - Byung-Joon Ko
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Theodore R Witte
- Department of Biochemistry and Microbiology, Marshall University School of Medicine, Huntington, WV
| | - Fadime Dincer
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - W Elaine Hardman
- Department of Biochemistry and Microbiology, Marshall University School of Medicine, Huntington, WV
| | - Christos S Mantzoros
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA; Section of Endocrinology, Boston VA Healthcare system, Boston, MA
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Chemoprotective epigenetic mechanisms in a colorectal cancer model: Modulation by n-3 PUFA in combination with fermentable fiber. ACTA ACUST UNITED AC 2015; 1:11-20. [PMID: 25938013 DOI: 10.1007/s40495-014-0005-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Colorectal cancer is the third major cause of cancer-related mortality in both men and women worldwide. The beneficial role of n-3 polyunsaturated fatty acids (PUFA) in preventing colon cancer is substantiated by experimental, epidemiological, and clinical data. From a mechanistic perspective, n-3 PUFA are pleiotropic and multifaceted with respect to their molecular mechanisms of action. For example, this class of dietary lipid uniquely modulates membrane and nuclear receptors, sensors/ion channels, and membrane structure/cytoskeletal function, thereby regulating signaling processes that influence patterns of gene expression and cell phenotype. In addition, n-3 PUFA can synergize with other potential chemoprotective agents known to reprogram the chromatin landscape, such as the fermentable fiber product, butyrate. Nutri-epigenomics is an emerging field of research that is focused on the interaction between nutrition and epigenetics. Epigenetics refers to a group of heterogeneous processes that regulate transcription without changing the DNA coding sequence, ranging from DNA methylation, to histone tail modifications and transcription factor activity. One implication of the nutri-epigenome is that it may be possible to reprogram epigenetic marks that are associated with increased disease risk by nutritional or lifestyle interventions. This review will focus on the nutri-epigenomic role of n-3 PUFA, particularly DHA, as well as the combinatorial effects of n-3 PUFA and fermentable fiber in relation to colon cancer.
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Palmer JD, Soule BP, Simone BA, Zaorsky NG, Jin L, Simone NL. MicroRNA expression altered by diet: can food be medicinal? Ageing Res Rev 2014; 17:16-24. [PMID: 24833329 DOI: 10.1016/j.arr.2014.04.005] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 04/20/2014] [Accepted: 04/29/2014] [Indexed: 01/04/2023]
Abstract
As the link between metabolism and major disease processes becomes more well-defined, the identification of key molecular targets is leading to new therapeutic strategies. As a result, small non-coding RNA molecules that regulate gene expression via epigenetic alterations, microRNAs have been identified as regulators of these metabolic processes. In the last decade, dietary interventions have been used to change metabolism and to potentially alter disease progression and clinical outcomes. These interventions have been linked, at a molecular level, to microRNAs. This review will summarize the role of various dietary strategies on the expression of several microRNA families.
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Chapkin RS, DeClercq V, Kim E, Fuentes NR, Fan YY. Mechanisms by Which Pleiotropic Amphiphilic n-3 PUFA Reduce Colon Cancer Risk. CURRENT COLORECTAL CANCER REPORTS 2014; 10:442-452. [PMID: 25400530 DOI: 10.1007/s11888-014-0241-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Colorectal cancer is one of the major causes of cancer-related mortality in both men and women worldwide. Genetic susceptibility and diet are primary determinants of cancer risk and tumor behavior. Experimental, epidemiological, and clinical data substantiate the beneficial role of n-3 polyunsaturated fatty acids (PUFA) in preventing chronic inflammation and colon cancer. From a mechanistic perspective, n-3 PUFA are pleiotropic and multifaceted with respect to their molecular mechanisms of action. For example, this class of dietary lipid uniquely alters membrane structure/ cytoskeletal function, impacting membrane receptor function and downstream signaling cascades, including gene expression profiles and cell phenotype. In addition, n-3 PUFA can synergize with other potential anti-tumor agents, such as fermentable fiber and curcumin. With the rising prevalence of diet-induced obesity, there is also an urgent need to elucidate the link between chronic inflammation in adipose tissue and colon cancer risk in obesity. In this review, we will summarize recent developments linking n-3 PUFA intake, membrane alterations, epigenetic modulation, and effects on obesity-associated colon cancer risk.
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Affiliation(s)
- Robert S Chapkin
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA. Center for Translational Environmental Health Research, Texas A&M University, College Station, TX 77843, USA. Department of Nutrition and Food Science, Texas A&M University, College Station, TX 77843, USA. Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843, USA. Faculty of Toxicity, Texas A&M University, College Station, TX 77843, USA
| | - Vanessa DeClercq
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA. Department of Nutrition and Food Science, Texas A&M University, College Station, TX 77843, USA
| | - Eunjoo Kim
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA. Molecular & Cellular Medicine, Texas A&M University, College Station, TX 77843, USA
| | - Natividad Roberto Fuentes
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA. Faculty of Toxicity, Texas A&M University, College Station, TX 77843, USA
| | - Yang-Yi Fan
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX 77843, USA. Department of Nutrition and Food Science, Texas A&M University, College Station, TX 77843, USA
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Greiner AK, Papineni RVL, Umar S. Chemoprevention in gastrointestinal physiology and disease. Natural products and microbiome. Am J Physiol Gastrointest Liver Physiol 2014; 307:G1-15. [PMID: 24789206 PMCID: PMC4080166 DOI: 10.1152/ajpgi.00044.2014] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The human intestinal tract harbors a complex ecosystem of commensal bacteria that play a fundamental role in the well-being of their host. There is a general consensus that diet rich in plant-based foods has many advantages in relation to the health and well-being of an individual. In adults, diets that have a high proportion of fruit and vegetables and a low consumption of meat are associated with a highly diverse microbiota and are defined by a greater abundance of Prevotella compared with Bacteroides, whereas the reverse is associated with a diet that contains a low proportion of plant-based foods. In a philosophical term, our consumption of processed foods, widespread use of antibiotics and disinfectants, and our modern lifestyle may have forever altered our ancient gut microbiome. We may never be able to identify or restore our microbiomes to their ancestral state, but dietary modulation to manipulate specific gut microbial species or groups of species may offer new therapeutic approaches to conditions that are prevalent in modern society, such as functional gastrointestinal disorders, obesity, and age-related nutritional deficiency. We believe that this will become an increasingly important area of health research.
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Affiliation(s)
- Allen K. Greiner
- 1Departments of Molecular and Integrative Physiology and Family Medicine Research Division, University of Kansas Medical Center, Kansas City, Kansas;
| | - Rao V. L. Papineni
- 1Departments of Molecular and Integrative Physiology and Family Medicine Research Division, University of Kansas Medical Center, Kansas City, Kansas; ,2PACT and Health, Branford, Connecticut; and ,3Precision X-Ray Inc., North Branford, Connecticut
| | - Shahid Umar
- Departments of Molecular and Integrative Physiology and Family Medicine Research Division, University of Kansas Medical Center, Kansas City, Kansas;
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Abstract
MicroRNAs (miRNAs) are short noncoding RNAs that orchestrate complex posttranscriptional regulatory networks essential to the regulation of gene expression. Through complementarity with messenger RNA (mRNA) sequences, miRNAs act primarily to silence gene expression through either degradation or inhibited translation of target transcripts. In this way, miRNAs can act to fine-tune the transcriptional regulation of gene expression, but they may also play distinct roles in the proliferation, differentiation, and function of specific cell types. miRNA regulatory networks may be particularly important for signaling molecules such as vitamin D that exert pleiotropic effects on tissues throughout the body. The active form of vitamin D, 1,25-dihydroxyvitamin D (1,25(OH)2D) functions as a steroid hormone that, when bound to its nuclear vitamin D receptor, is able to regulate target gene expression. However, recent studies have also implicated 1,25(OH)2D in epigenetic regulation of genes most notably as a modulator of miRNA function. The current review details our understanding of vitamin D and miRNAs with specific emphasis on the implications of this interaction for biological responses to vitamin D in one of its classical target tissues, i.e., bone.
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Affiliation(s)
- Thomas S Lisse
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, 50 Blossom St., Thier 11, Boston, MA 02114, USA
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Kato I, Startup J, Ram JL. Fecal Biomarkers for Research on Dietary and Lifestyle Risk Factors in Colorectal Cancer Etiology. CURRENT COLORECTAL CANCER REPORTS 2013. [DOI: 10.1007/s11888-013-0195-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Leclere L, Cutsem PV, Michiels C. Anti-cancer activities of pH- or heat-modified pectin. Front Pharmacol 2013; 4:128. [PMID: 24115933 PMCID: PMC3792700 DOI: 10.3389/fphar.2013.00128] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 09/14/2013] [Indexed: 02/01/2023] Open
Abstract
Despite enormous efforts that have been made in the search for novel drugs and treatments, cancer continues to be a major public health problem. Moreover, the emergence of resistance to cancer chemotherapy often prevents complete remission. Researchers have thus turned to natural products mainly from plant origin to circumvent resistance. Pectin and pH- or heat-modified pectin have demonstrated chemopreventive and antitumoral activities against some aggressive and recurrent cancers. The focus of this review is to describe how pectin and modified pectin display these activities and what are the possible underlying mechanisms. The failure of conventional chemotherapy to reduce mortality as well as serious side effects make natural products, such as pectin-derived products, ideal candidates for exerting synergism in combination with conventional anticancer drugs.
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Affiliation(s)
- Lionel Leclere
- Unité de Recherche en Biologie Cellulaire, Namur Research Institute for Life Sciences, University of Namur Namur, Belgium
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Upregulation of microRNA-203 is associated with advanced tumor progression and poor prognosis in epithelial ovarian cancer. Med Oncol 2013; 30:681. [DOI: 10.1007/s12032-013-0681-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 07/24/2013] [Indexed: 01/05/2023]
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Abstract
The major factor in the morbidity and mortality of cancer patients is metastasis. There exists a relative lack of specific therapeutic approaches to control metastasis, and this is a fruitful area for investigation. A healthy diet and lifestyle not only can inhibit tumorigenesis but also can have a major impact on cancer progression and survival. Many chemicals found in edible plants are known to inhibit metastatic progression of cancer. While the mechanisms underlying antimetastatic activity of some phytochemicals are being delineated, the impact of diet, dietary components, and various phytochemicals on metastasis suppressor genes is underexplored. Epigenetic regulation of metastasis suppressor genes promises to be a potentially important mechanism by which dietary components can impact cancer metastasis since many dietary constituents are known to modulate gene expression. The review addresses this area of research as well as the current state of knowledge regarding the impact of diet, dietary components, and phytochemicals on metastasis suppressor genes.
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Cho Y, Turner ND, Davidson LA, Chapkin RS, Carroll RJ, Lupton JR. A chemoprotective fish oil/pectin diet enhances apoptosis via Bcl-2 promoter methylation in rat azoxymethane-induced carcinomas. Exp Biol Med (Maywood) 2013; 237:1387-93. [PMID: 23354397 DOI: 10.1258/ebm.2012.012244] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We have demonstrated that diets containing fish oil and pectin (FO/P) reduce colon tumor incidence relative to control (corn oil and cellulose [CO/C]) in part by inducing apoptosis of DNA-damaged colon cells. Relative to FO/P, CO/C promotes colonocyte expression of the antiapoptotic modulator, Bcl-2, and Bcl-2 promoter methylation is altered in colon cancer. To determine if FO/P, compared with CO/C, limits Bcl-2 expression by enhancing promoter methylation in colon tumors, we examined Bcl-2 promoter methylation, mRNA levels, colonocyte apoptosis and colon tumor incidence in azoxymethane (AOM)-injected rats. Rats were provided diets containing FO/P or CO/C, and were terminated 16 and 34 weeks after AOM injection. DNA isolated from paraformaldehyde-fixed colon tumors and uninvolved tissue was bisulfite modified and amplified by quantitative reverese transcriptase-polymerase chain reaction to assess DNA methylation in Bcl-2 cytosine-guanosine islands. FO/P increased Bcl-2 promoter methylation (P = 0.009) in tumor tissues and colonocyte apoptosis (P = 0.020) relative to CO/C. An inverse correlation between Bcl-2 DNA methylation and Bcl-2 mRNA levels was observed in the tumors. We conclude that dietary FO/P promotes apoptosis in part by enhancing Bcl-2 promoter methylation. These Bcl-2 promoter methylation responses, measured in vivo, contribute to our understanding of the mechanisms involved in chemoprevention of colon cancer by diets containing FO/P.
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Affiliation(s)
- Youngmi Cho
- Faculty of Nutrition, Texas A&M University, College Station, TX 77843, USA
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Parasramka MA, Ali S, Banerjee S, Deryavoush T, Sarkar FH, Gupta S. Garcinol sensitizes human pancreatic adenocarcinoma cells to gemcitabine in association with microRNA signatures. Mol Nutr Food Res 2013; 57:235-48. [PMID: 23293055 DOI: 10.1002/mnfr.201200297] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 09/17/2012] [Accepted: 10/02/2012] [Indexed: 12/14/2022]
Abstract
BACKGROUND Alterations in microRNA (miRNA/miR) genes are of biological importance in the pathophysiology of cancers, including pancreatic cancer (PaCa). Although growing evidence supports the role of miRNA in cancer, their response to dietary phytochemicals is less known. Previously, we showed that garcinol induces PaCa cell growth arrest and apoptosis in vitro. The present study, discusses chemo-sensitization by garcinol in synergism with first-line PaCa drug, gemcitabine. The miRNA expression profile of gemcitabine-resistant Panc-1 cells treated with garcinol and/or gemcitabine was also evaluated. METHODS AND RESULTS Garcinol synergizes with gemcitabine to inhibit cell proliferation and induce apoptosis in PaCa cells with significant modulation of key cancer regulators including PARP, VEGF, MMPs, ILs, caspases, and NF-κB. In addition, biostatistical analyses, quantitative reverse transcription PCR data, and in silico modeling using TargetScan5, PicTar, and DNA intelligent analysis, microT-V.B4 database showed that these two agents modulated a number of microRNAs (miR-21, miR-196a, miR-495, miR-605, miR-638, and miR-453) linked to various canonical oncogenic signaling pathways. CONCLUSION We identified garcinol-specific miRNA biomarkers that sensitize PaCa cells to gemcitabine treatment, thus attenuating the drug-resistance phenotype. These results prompt further interest in garcinol and gemcitabine combination strategy as a drug modality to improve treatment outcome in patients diagnosed with PaCa.
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Affiliation(s)
- Mansi A Parasramka
- Department of Nutrition and Food Science, School of Liberal Arts and Science, Wayne State University, Detroit, MI 48201, USA
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Shah MS, Davidson LA, Chapkin RS. Mechanistic insights into the role of microRNAs in cancer: influence of nutrient crosstalk. Front Genet 2012; 3:305. [PMID: 23293655 PMCID: PMC3531809 DOI: 10.3389/fgene.2012.00305] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 12/10/2012] [Indexed: 12/14/2022] Open
Abstract
A plethora of studies have described the disruption of key cellular regulatory mechanisms involving non-coding RNAs, specifically microRNAs (miRNA) from the let-7 family, the miR-17 family, miR-21, miR-143, and the miR-200 family, which contribute to aberrant signaling and tumor formation. Certain environmental factors, such as bioactive dietary agents, e.g., folate, curcumin, polyunsaturated fatty acids, are also thought to impact the progression and severity of cancer. In terms of the chemoprotective mechanisms of action, these bioactive dietary agents appear to act, in part, by modulating tissue levels of miR-16, miR-17 family, miR-26b, miR-106b, and miR-200 family miRNAs and their target genes. However, the mechanisms of nutrient action are not yet fully understood. Therefore, additional characterization of the putative underlying mechanisms is needed to further our understanding of the biology, early diagnosis, prevention, and the treatment of cancer. For the purpose of elucidating the epigenetic landscape of cancer, this review will summarize the key findings from recent studies detailing the effect of bioactive dietary agents on miRNA regulation in cancer.
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Affiliation(s)
- Manasvi S Shah
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station TX, USA ; Intercollegiate Faculty of Genetics, Texas A&M University, College Station TX, USA
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Kansal S, Negi AK, Agnihotri N. n-3 PUFAs as Modulators of Stem Cells in Prevention of Colorectal Cancer. CURRENT COLORECTAL CANCER REPORTS 2012. [DOI: 10.1007/s11888-012-0145-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Skender B, Vaculova AH, Hofmanova J. Docosahexaenoic fatty acid (DHA) in the regulation of colon cell growth and cell death: a review. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2012; 156:186-99. [PMID: 23069883 DOI: 10.5507/bp.2012.093] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 09/24/2012] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Experimental, epidemiological and clinical data substantiate the beneficial role of n-3 polyunsaturated fatty acids (PUFAs) in preventing inflammation and cancer of the colon. This review covers the unsaturated docosahexaenoic fatty acid (DHA), describes some of its important cellular and molecular mechanisms, its interaction with another dietary lipid, butyrate and with endogenous apoptotic regulators of the tumour necrosis factor (TNF) family. We also discuss the clinical impact of this knowledge and the use of these lipids in colon cancer prevention and treatment. RESULTS From the literature, DHA has been shown to suppress the growth, induce apoptosis in colon cancer cells in vitro and decrease the incidence and growth of experimental tumours in vivo. Based on these data and our own experimental results, we describe and discuss the possible mechanisms of DHA anticancer effects at various levels of cell organization. We show that DHA can sensitize colon cancer cells to other chemotherapeutic/chemopreventive agents and affect the action of physiological apoptotic regulators of the TNF family. CONCLUSION Use of n-3 PUFAs could be a relatively non-toxic form of supportive therapy for improving colon cancer treatment and slowing down or preventing its recurrence. However, it is necessary to use them with caution, based on solid scientific evidence of their mechanisms of action from the molecular to the cellular and organism levels.
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Affiliation(s)
- Belma Skender
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i. Brno, Czech Republic
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Parasramka MA, Dashwood WM, Wang R, Saeed HH, Williams DE, Ho E, Dashwood RH. A role for low-abundance miRNAs in colon cancer: the miR-206/Krüppel-like factor 4 (KLF4) axis. Clin Epigenetics 2012; 4:16. [PMID: 23006636 PMCID: PMC3506528 DOI: 10.1186/1868-7083-4-16] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Accepted: 09/18/2012] [Indexed: 12/11/2022] Open
Abstract
Background MicroRNAs (miRNAs or miRs) are short non-coding RNAs that affect the expression of genes involved in normal physiology, but that also become dysregulated in cancer development. In the latter context, studies to date have focused on high-abundance miRNAs and their targets. We hypothesized that among the pool of low-abundance miRNAs are some with the potential to impact crucial oncogenic signaling networks in colon cancer. Results Unbiased screening of over 650 miRNAs identified miR-206, a low-abundance miRNA, as the most significantly altered miRNA in carcinogen-induced rat colon tumors. Computational modeling highlighted the stem-cell marker Krüppel-like factor 4 (KLF4) as a potential target of miR-206. In a panel of primary human colon cancers, target validation at the mRNA and protein level confirmed a significant inverse relationship between miR-206 and KLF4, which was further supported by miR-206 knockdown and ectopic upregulation in human colon cancer cells. Forced expression of miR-206 resulted in significantly increased cell proliferation kinetics, as revealed by real-time monitoring using HCT116 cells. Conclusions Evolutionarily conserved high-abundance miRNAs are becoming established as key players in the etiology of human cancers. However, low-abundance miRNAs, such as miR-206, are often among the most significantly upregulated miRNAs relative to their expression in normal non-transformed tissues. Low-abundance miRNAs are worthy of further investigation, because their targets include KLF4 and other pluripotency and cancer stem-cell factors.
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Affiliation(s)
- Mansi A Parasramka
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, USA.
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Parasramka MA, Dashwood WM, Wang R, Abdelli A, Bailey GS, Williams DE, Ho E, Dashwood RH. MicroRNA profiling of carcinogen-induced rat colon tumors and the influence of dietary spinach. Mol Nutr Food Res 2012; 56:1259-69. [PMID: 22641368 PMCID: PMC3762592 DOI: 10.1002/mnfr.201200117] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 03/22/2012] [Accepted: 04/03/2012] [Indexed: 12/13/2022]
Abstract
SCOPE MicroRNA (miRNA) profiles are altered in chronic conditions such as cardiovascular disease, diabetes, neurological disorders, and cancer. A systems biology approach was used to examine, for the first time, miRNAs altered in rat colon tumors induced by 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP), a heterocyclic amine carcinogen from cooked meat. METHODS AND RESULTS Among the most highly dysregulated miRNAs were those belonging to the let-7 family. Subsequent computational modeling and target validation identified c-Myc and miRNA-binding proteins Lin28A/Lin28B (Lin28) as key players, along with Sox2, Nanog, and Oct-3/4. These targets of altered miRNAs in colon cancers have been implicated in tumor recurrence and reduced patient survival, in addition to their role as pluripotency factors. In parallel with these findings, the tumor-suppressive effects of dietary spinach given postinitiation correlated with elevated levels of let-7 family members and partial normalization of c-myc, Sox2, Nanog, Oct-3/4, HmgA2, Dnmt3b, and P53 expression. CONCLUSION We conclude that the let-7/c-Myc/Lin28 axis is dysregulated in heterocyclic amine-induced colon carcinogenesis, and that the tumor suppressive effects of dietary spinach are associated with partial normalization of this pathway.
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Affiliation(s)
| | | | - Rong Wang
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, USA
| | - Amir Abdelli
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, USA
| | - George S. Bailey
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, USA
| | - David E. Williams
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, USA
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, USA
| | - Emily Ho
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, USA
- School of Biological and Population Health Sciences, Oregon State University, Corvallis, Oregon, USA
| | - Roderick H. Dashwood
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, USA
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, USA
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Davidson LA, Goldsby JS, Callaway ES, Shah MS, Barker N, Chapkin RS. Alteration of colonic stem cell gene signatures during the regenerative response to injury. Biochim Biophys Acta Mol Basis Dis 2012; 1822:1600-7. [PMID: 22750333 DOI: 10.1016/j.bbadis.2012.06.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 06/20/2012] [Accepted: 06/22/2012] [Indexed: 01/06/2023]
Abstract
Since aberrant wound healing and chronic inflammation can promote malignant transformation, we determined whether dietary bioactive fish oil (FO)-derived n-3 polyunsaturated fatty acids (n-3 PUFA) modulate stem cell kinetics in a colitis-wounding model. Lgr5-LacZ and Lgr5-EGFP-IRES-creER(T2) mice were fed diets enriched with n-3 PUFA vs n-6 PUFA (control) and exposed to dextran sodium sulfate (DSS) for 5days in order to induce crypt damage and colitis throughout the colon. Stem cell number, cell proliferation, apoptosis, expression of stem cell (Lgr5, Sox9, Bmi1, Hopx, mTert, Ascl2, and DCAMKL-1) and inflammation (STAT3) markers were quantified. DSS treatment resulted in the ablation of Lgr5(+) stem cells in the distal colon, concurrent with the loss of distal crypt structure and proliferating cells. Lgr5, Ascl2 and Hopx mRNA expression levels were decreased in damaged colonic mucosa. Lgr5(+) stem cells reappeared at day 5 of DSS recovery, with normal levels attained by day 6 of recovery. There was no effect of diet on the recovery of stem cells. FO fed animals exhibited higher levels of phospho-STAT3 at all time points, consistent with a higher wounding by DSS in FO feeding. n-3 PUFA-fed mice exhibited a reduction in stem cell associated factors, Ascl2, Axin2 and EphB3. These results indicate that rapidly cycling Lgr5(+) stem cells residing at position 1 in the colon epithelium are highly susceptible to DSS-induced damage and that dietary cues can impact stem cell regulatory networks.
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Affiliation(s)
- Laurie A Davidson
- Center for Environmental & Rural Health, Texas A&M University, College Station, TX, USA
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