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Williams LM, Cao S. Harnessing and delivering microbial metabolites as therapeutics via advanced pharmaceutical approaches. Pharmacol Ther 2024; 256:108605. [PMID: 38367866 PMCID: PMC10985132 DOI: 10.1016/j.pharmthera.2024.108605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/05/2024] [Accepted: 02/08/2024] [Indexed: 02/19/2024]
Abstract
Microbial metabolites have emerged as key players in the interplay between diet, the gut microbiome, and host health. Two major classes, short-chain fatty acids (SCFAs) and tryptophan (Trp) metabolites, are recognized to regulate inflammatory, immune, and metabolic responses within the host. Given that many human diseases are associated with dysbiosis of the gut microbiome and consequent reductions in microbial metabolite production, the administration of these metabolites represents a direct, multi-targeted treatment. While a multitude of preclinical studies showcase the therapeutic potential of both SCFAs and Trp metabolites, they often rely on high doses and frequent dosing regimens to achieve systemic effects, thereby constraining their clinical applicability. To address these limitations, a variety of pharmaceutical formulations approaches that enable targeted, delayed, and/or sustained microbial metabolite delivery have been developed. These approaches, including enteric encapsulations, esterification to dietary fiber, prodrugs, and nanoformulations, pave the way for the next generation of microbial metabolite-based therapeutics. In this review, we first provide an overview of the roles of microbial metabolites in maintaining host homeostasis and outline how compromised metabolite production contributes to the pathogenesis of inflammatory, metabolic, autoimmune, allergic, infectious, and cancerous diseases. Additionally, we explore the therapeutic potential of metabolites in these disease contexts. Then, we provide a comprehensive and up-to-date review of the pharmaceutical strategies that have been employed to enhance the therapeutic efficacy of microbial metabolites, with a focus on SCFAs and Trp metabolites.
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Affiliation(s)
- Lindsey M Williams
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA 98195, United States
| | - Shijie Cao
- Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA 98195, United States.
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2
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Ralser A, Dietl A, Jarosch S, Engelsberger V, Wanisch A, Janssen KP, Middelhoff M, Vieth M, Quante M, Haller D, Busch DH, Deng L, Mejías-Luque R, Gerhard M. Helicobacter pylori promotes colorectal carcinogenesis by deregulating intestinal immunity and inducing a mucus-degrading microbiota signature. Gut 2023:gutjnl-2022-328075. [PMID: 37015754 DOI: 10.1136/gutjnl-2022-328075] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 03/19/2023] [Indexed: 04/06/2023]
Abstract
OBJECTIVE Helicobacter pylori infection is the most prevalent bacterial infection worldwide. Besides being the most important risk factor for gastric cancer development, epidemiological data show that infected individuals harbour a nearly twofold increased risk to develop colorectal cancer (CRC). However, a direct causal and functional connection between H. pylori infection and colon cancer is lacking. DESIGN We infected two Apc-mutant mouse models and C57BL/6 mice with H. pylori and conducted a comprehensive analysis of H. pylori-induced changes in intestinal immune responses and epithelial signatures via flow cytometry, chip cytometry, immunohistochemistry and single cell RNA sequencing. Microbial signatures were characterised and evaluated in germ-free mice and via stool transfer experiments. RESULTS H. pylori infection accelerated tumour development in Apc-mutant mice. We identified a unique H. pylori-driven immune alteration signature characterised by a reduction in regulatory T cells and pro-inflammatory T cells. Furthermore, in the intestinal and colonic epithelium, H. pylori induced pro-carcinogenic STAT3 signalling and a loss of goblet cells, changes that have been shown to contribute-in combination with pro-inflammatory and mucus degrading microbial signatures-to tumour development. Similar immune and epithelial alterations were found in human colon biopsies from H. pylori-infected patients. Housing of Apc-mutant mice under germ-free conditions ameliorated, and early antibiotic eradication of H. pylori infection normalised the tumour incidence to the level of uninfected controls. CONCLUSIONS Our studies provide evidence that H. pylori infection is a strong causal promoter of colorectal carcinogenesis. Therefore, implementation of H. pylori status into preventive measures of CRC should be considered.
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Affiliation(s)
- Anna Ralser
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
| | - Alisa Dietl
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
| | - Sebastian Jarosch
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
- Boehringer Ingelheim Pharma GmbH & Co. KG, Drug Discovery Sciences, Biberach an der Riß, Germany
| | - Veronika Engelsberger
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
| | - Andreas Wanisch
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
| | - Klaus Peter Janssen
- Department of Surgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Moritz Middelhoff
- Klinik und Poliklinik für Innere Medizin II, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Michael Vieth
- Institute of Pathology, Klinikum Bayreuth, Friedrich-Alexander University Erlangen-Nuremberg, Bayreuth, Germany
| | - Michael Quante
- Klinik und Poliklinik für Innere Medizin II, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
- Klinik für Innere Medizin II, Universitätsklinikum Freiburg, Freiburg, Germany
| | - Dirk Haller
- Chair of Nutrition and Immunology, Technical University of Munich, Freising, Germany
- ZIEL Institute for Food & Health, Technical University of Munich, Munich, Germany
| | - Dirk H Busch
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
- Munich Partner Site, German Center for Infection Research (DZIF), Munich, Germany
| | - Li Deng
- Institute of Virology, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
- Chair for Preventions of Microbial Diseases, School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Raquel Mejías-Luque
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
- Munich Partner Site, German Center for Infection Research (DZIF), Munich, Germany
| | - Markus Gerhard
- Institute for Medical Microbiology, Immunology and Hygiene, School of Medicine, Technical University of Munich, Munich, Germany
- Munich Partner Site, German Center for Infection Research (DZIF), Munich, Germany
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3
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Panyathep A, Chewonarin T. Inhibitory effect of a gamma-oryzanol-rich fraction from purple rice extract on lipopolysaccharide-induced metastasis in human colon cancer cells. J Food Biochem 2020; 44:e13487. [PMID: 33029825 DOI: 10.1111/jfbc.13487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 01/06/2023]
Abstract
The incidence of colon cancer recurrence and metastasis is known to increase as an adverse effect related to postoperative infection. Lipopolysaccharide or LPS, which is derived from gram-negative bacteria, is a key inducer of inflammatory-related tumor metastasis. Although there are numerous known biological effects of purple rice extract (PRE), its protective effect on colon metastasis was unknown. This study first evaluated the effects of hexane soluble fraction (HSF) or γ-oryzanol-rich fraction of PRE on LPS-induced colon cancer adhesion and invasion, which was accomplished using adhesive and invasive assay. Gelatin zymography was also utilized for gelatinase activity and secretion. Its chelating activity was also further analyzed by reverse gelatin zymography with zinc chloride. The study findings support the synergistic effect of HSF in protection against adverse events from LPS-induced colon cancer metastasis, as shown by effects on adhesive and invasive ability as well as matrix metalloproteinase-2 secretion and activity. PRACTICAL APPLICATIONS: Bacterial infection is still one of the main adverse events following abdominal cancer surgery and is associated with an increased incidence of colon cancer metastasis. Lipopolysaccharide (LPS) is a major component of this pathogen-mediated response. This first study investigated the efficiency of a gamma-oryzanol (OR) rich fraction, collected from purple rice extract (PRE), against LPS-induced colon cancer metastasis that occurs via three main steps; adhesion to the extracellular matrix, the secretion, and activity of gelatinase and further tissue invasion. The acquired data supported the role of an OR-rich fraction from PRE as a potential inhibitor to LPS-induced colon cancer progression. This finding, related to PRE, could be further developed to create a new adjunctive treatment to reduce operative complications related to bowel cancer surgery as well as increasing the value of this crop in Thailand.
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Affiliation(s)
- Atita Panyathep
- School of Medicine, Mae Fah Luang University, Chiang Rai, Thailand
| | - Teera Chewonarin
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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4
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Abstract
Alternate remedies with natural products provides unlimited opportunities for new drug development. These can be either as pure compounds or as standardized set of compounds. The phytochemicals and secondary metabolites are in great demand for screening bioactive compounds and plays an important role towards drug development. Natural products have many advantages over to synthetic chemical drugs. Helicobacter pylori (H. pylori) a Gram-negative bacteria has been classified as Class I carcinogen by World Health Organization in 1994. Current treatment regimens for H. pylori is ‘triple therapy’ administrated for two weeks which includes a combination of two antibiotics like Amoxicillin and Clarithromycin and a proton pump inhibitor (PPI) like Lansoprazole, and for ‘quadruple therapy’ in addition to antibiotics and a PPI, Bismuth is used. Antibiotic resistance can be named as the main factor for failure of treatment of H. pylori infection. The need of the hour is to develop a herbal remedy that could combat the growth of H. pylori. Probiotics can also be used as ‘feasible’ tool for H. pylori infection management. Present review is an attempt to briefly discuss about the pathogenicity, genetic predisposition, perturbation of gut microbiota due to antibiotic treatment and restoration of healthy gut microbiota with phytochemicals and probiotics.
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Zhu G, Cheng Z, Lin C, Hoffman RM, Huang Y, Singh SR, Zheng W, Yang S, Ye J. MyD88 Regulates LPS-induced NF-ĸB/MAPK Cytokines and Promotes Inflammation and Malignancy in Colorectal Cancer Cells. Cancer Genomics Proteomics 2020; 16:409-419. [PMID: 31659096 DOI: 10.21873/cgp.20145] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/01/2019] [Accepted: 10/04/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND/AIM Inflammation may play a role in cancer initiation and progression. The molecular mechanisms by which inflammation causes colorectal cancer, remains unclear. The present study investigated a signaling pathway that affects inflammation in colorectal cancer. MATERIALS AND METHODS SW480 cells, HCT116 cells, and cells with knockdown of myeloid differentiation 88 (MyD88), and forced expression of MyD88 were treated with lipopolysaccharide (LPS; 1 μg/ml). Inflammation-related mRNA expression was analyzed by the quantitative reverse transcription polymerase chain reaction and inflammatory cytokines were detected by western blotting. The enzyme-linked immunosorbent assay (ELISA) was used to quantify inflammation-related cytokines in colorectal cancer cells. Cancer cell properties were evaluated using the wound-healing assay, transwell migration assay, transwell invasion assay, colony-formation assay, and CCK-8 assay. RESULTS LPS up-regulated mRNA and protein levels of inflammatory factors in colorectal cancer cells. Knockdown of MyD88 inhibited LPS-induced mRNA expression and inflammatory protein expression in colorectal cancer cells. Similarly, silencing of MyD88 expression suppressed LPS-induced changes in the biological behavior of colorectal cancer cells. Silencing of MyD88 expression down-regulated expression of proteins of the LPS/nuclear factor kappa-light-chain-enhancer of activated B-cells (NF-ĸB)/mitogen-activated protein kinase (MAPK) signaling pathway. Restoration of the expression of MyD88 reversed the effects in LPS-treated HCT116 cells. CONCLUSION MyD88-regulated LPS/NF-ĸB/MAPK signaling pathway affects the inflammatory and biological behavior of LPS-induced colorectal cancer cells.
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Affiliation(s)
- Guangwei Zhu
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, P.R. China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, P.R. China
| | - Zhibin Cheng
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, P.R. China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, P.R. China
| | - Chunlin Lin
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, P.R. China
| | - Robert M Hoffman
- AntiCancer, Inc., San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Yongjian Huang
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, P.R. China
| | - Shree Ram Singh
- Basic Research Laboratory, National Cancer Institute, Frederick, MD, U.S.A.
| | - Wei Zheng
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, P.R. China
| | - Shugang Yang
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, P.R. China
| | - Jianxin Ye
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, P.R. China .,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, P.R. China
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Wang CZ, Zhang CF, Luo Y, Yao H, Yu C, Chen L, Yuan J, Huang WH, Wan JY, Zeng J, Sawadogo WR, Yuan CS. Baicalein, an enteric microbial metabolite, suppresses gut inflammation and cancer progression in Apc Min/+ mice. Clin Transl Oncol 2019; 22:1013-1022. [PMID: 31650468 DOI: 10.1007/s12094-019-02225-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/03/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Chronic inflammation is recognized as a risk factor for colorectal cancer (CRC) development. Baicalin (BI), a major constituent in an anti-inflammatory herb Scutellaria baicalensis, can be biotransformed into baicalein (BE) by the intestinal microbiota. We evaluated the anti-inflammation and anti-CRC effects of the metabolite BE. METHODS The in vitro biotransformation by human intestinal microbiota from BI into BE has been determined with HPLC. Using a gut-specific ApcMin/+ mouse model, the effects of oral BE on the life span, organ index, and tumor multiplicity were evaluated. The expressions of inflammatory cytokines were determined using ELISA. To verify the in vivo data, the anti-inflammatory and antiproliferative effects of BE were determined with an in vitro cell model. RESULTS HPLC analysis showed that BI was quickly transformed into BE by the intestinal microbiota. Oral BE (30 mg/kg/day) significantly increased the life span, from 125.2 to 218.4 days (P < 0.01%). BE treatment also decreased intestine index and increased spleen index. Compared with the model group, following BE treatment, tumor numbers were significantly reduced in the small intestine and colon (P < 0.01, P < 0.05, respectively). In the gut tissues, BE treatment significantly reduced inflammatory cytokine levels such as IL-1β, IL-2, IL-6, IL-10, G-CSF, and GM-CSF. In vitro data supported our in vivo results that the anti-CRC effects of BE were via the inhibition of gut inflammation and induction of cancer cell death. CONCLUSION Our results suggest that the parent compound BI can be quickly converted into its microbial metabolite BE, which has stronger bioactive effects than BI. Baicalein is an active chemopreventive metabolite for inflammatory associated CRC.
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Affiliation(s)
- C-Z Wang
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA.
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA.
| | - C-F Zhang
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - Y Luo
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - H Yao
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - C Yu
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - L Chen
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - J Yuan
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - W-H Huang
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - J-Y Wan
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - J Zeng
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - W R Sawadogo
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - C-S Yuan
- Tang Center for Herbal Medicine Research, Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Ave., MC 4028, Chicago, IL, 60637, USA
- Department of Anesthesia and Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
- Committee on Clinical Pharmacology and Pharmacogenomics, Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA
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7
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Moon D, Kim J, Yoon SP. Yeast extract inhibits the proliferation of renal cell carcinoma cells via regulation of iron metabolism. Mol Med Rep 2019; 20:3933-3941. [PMID: 31432187 DOI: 10.3892/mmr.2019.10593] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 07/15/2019] [Indexed: 11/05/2022] Open
Abstract
The microbiome has recently attracted research interest in a variety of subjects, including cancer. In the present study, it was determined that reinforced clostridium media (RCM) for microbiome culture, exerts antitumor effects on renal cell carcinoma cells when compared to the microbiome 'X'. The antitumor effects of RCM were investigated for all ingredients of RCM, and the results revealed that yeast extract could be a candidate for the ingredient driving this phenomenon. Further experiments including MTT assay, cell counting, cell death analysis, cell cycle analysis and western blotting were conducted with yeast extract on renal cell carcinoma cells (Caki‑1 and Caki‑2) and normal human proximal tubular cells (HK‑2). As a result, yeast extract exhibited dose‑dependent antitumor effects on Caki‑1 and Caki‑2, but only slight effects on HK‑2. In addition, yeast extract only exhibited slight effects on necrosis, autophagy, or apoptosis of Caki‑1 and Caki‑2. Yeast extract produced cell cycle arrest with an increased G0/G1 fraction and a decreased S fraction, and this was considered to be related to the decreased cyclin D1. Although yeast extract treatment increased anti‑oxidant activities, the antitumor effects of yeast extract were also related to iron metabolism, based on the decreased transferrin receptor and increased ferritin. In addition, decreased GPX4 may be related to iron‑dependent cell death, particularly in Caki‑2. These results revealed that yeast extract may inhibit proliferation of renal cell carcinoma cells by regulating iron metabolism. Since an increased iron requirement is a classic phenomenon of cancer cells, yeast extract may be a candidate for adjuvant treatment of renal cell carcinoma.
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Affiliation(s)
- Daeun Moon
- Department of Anatomy, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Jinu Kim
- Department of Anatomy, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Sang-Pil Yoon
- Department of Anatomy, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
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8
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Del Moral-Hernández O, Castañón-Sánchez CA, Reyes-Navarrete S, Martínez-Carrillo DN, Betancourt-Linares R, Jiménez-Wences H, de la Peña S, Román-Román A, Hernández-Sotelo D, Fernández-Tilapa G. Multiple infections by EBV, HCMV and Helicobacter pylori are highly frequent in patients with chronic gastritis and gastric cancer from Southwest Mexico: An observational study. Medicine (Baltimore) 2019; 98:e14124. [PMID: 30653141 PMCID: PMC6370051 DOI: 10.1097/md.0000000000014124] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The chronic inflammation and damage to the gastric epithelium induced by Helicobacter pylori (H. pylori) are the main risk factors for gastric cancer development. Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) induce chronic inflammation and have been found in gastric tumors. The objectives this observational study were to determine the frequency of multiple infections by Helicobacter pylori, Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) and to relate the infection by EBV and HCMV with H. pylori vacA/cagA genotypes in patients with chronic gastritis or gastric cancer. DNA from H. pylori, EBV and HCMV was detected by PCR in biopsies from 106 Mexican patients with chronic gastritis and 32 from gastric cancer. The cagA status and the vacA genotypes of H. pylori were determined by PCR. In chronic gastritis and gastric cancer EBV was found in 69.8% and 87.5%, HCMV in 52.8% and 53.1%, and H. pylori in 48.1% and 40.6%, respectively. In chronic gastritis, 53% of H. pylori patients were EBV and 33% were both EBV/HCMV; in gastric cancer, 92.3% of H. pylori-infected individuals were EBV and 46.1% were EVB/HCMV. All the intestinal- and mixed-type tumors and the 83.3% of diffuse-type tumors were EBV. No significant differences were found between single infections or coinfections with the diagnosis or the cancer type. The H. pylori genotypes were not related to EBV or HCMV infection. The frequency of dual infections by H. pylori, EBV and HCMV is higher in patients from southwest Mexico than other populations. It is likely that these pathogens act synergistically to induce inflammation and gastric cancer.
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Affiliation(s)
- Oscar Del Moral-Hernández
- Laboratory of Virology and Epigenetics of Cancer, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero
| | | | | | | | | | - Hilda Jiménez-Wences
- Laboratory of Clinical Research, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero
| | - Sol de la Peña
- Postdoctoral Fellow CONACYT in Laboratory of Clinical Research, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero
| | - Adolfo Román-Román
- Laboratory of Bacteriology Research, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero, Mexico
| | - Daniel Hernández-Sotelo
- Laboratory of Virology and Epigenetics of Cancer, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero
| | - Gloria Fernández-Tilapa
- Laboratory of Clinical Research, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero
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González-Sarrías A, Núñez-Sánchez MA, Ávila-Gálvez MA, Monedero-Saiz T, Rodríguez-Gil FJ, Martínez-Díaz F, Selma MV, Espín JC. Consumption of pomegranate decreases plasma lipopolysaccharide-binding protein levels, a marker of metabolic endotoxemia, in patients with newly diagnosed colorectal cancer: a randomized controlled clinical trial. Food Funct 2018; 9:2617-2622. [PMID: 29770393 DOI: 10.1039/c8fo00264a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gut microbiota dysbiosis alters the intestinal barrier function, increases plasma lipopolysaccharide (LPS) levels, which promotes endotoxemia, and contributes to the onset and development of colorectal cancer (CRC). We report here for the first time the reduction of plasma LPS-binding protein (LBP) levels, a marker of endotoxemia, after pomegranate consumption in newly diagnosed CRC patients.
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Affiliation(s)
- A González-Sarrías
- Laboratory of Food & Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS-CSIC, P.O. Box 164, 30100 Campus de Espinardo, Murcia, Spain.
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10
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Zhu G, Huang Q, Huang Y, Zheng W, Hua J, Yang S, Zhuang J, Wang J, Ye J. Lipopolysaccharide increases the release of VEGF-C that enhances cell motility and promotes lymphangiogenesis and lymphatic metastasis through the TLR4- NF-κB/JNK pathways in colorectal cancer. Oncotarget 2018; 7:73711-73724. [PMID: 27713159 PMCID: PMC5342009 DOI: 10.18632/oncotarget.12449] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 09/21/2016] [Indexed: 12/20/2022] Open
Abstract
Lipopolysaccharide (LPS) exists in the outer membrane of Gram-negative bacteria. Colorectal normal epithelium and colorectal cancer cells in situ are continuously exposed to LPS from intestinal bacteria, while little is known about the influence of LPS on colorectal cancer progression and metastasis. In this study, we investigated the potential role of LPS on colorectal cancer progression and metastasis as well as the underlying mechanisms. We measured higher LPS concentration in colorectal cancer tissues and even higher LPS concentration in colorectal cancer tissues with lymph node metastasis. LPS significantly enhanced cancer cell motility and promoted human dermal lymphatic endothelial cells' (HDLECs') capacity of tube-like formation in vitro, as well as accelerates lymphangiogenesis and lymph node metastasis in nude mice. Furthermore, we demonstrated LPS notably increased the expression of VEGF-C in a time-dependent and concentration-dependent manner. VEGF-C is a key regulator for lymphangiogenesis and lymph node metastasis. By constructing lentivirus-mediated shVEGF-C cells, VEGF-C down-regulation suppressed LPS' promotive effect on cancer cell motility and HDLEC tube-like formation capacity. In addition, we found TLR4- NF-κB/JNK signal pathways were important for LPS to increase VEGF-C expression. All these result suggested a critical role for LPS in migration, invasion, lymphangiogenesis and lymph node metastasis of colorectal cancer, providing evidence that LPS increased VEGF-C secretion to promote cell motility and lymphangiogenesis via TLR4- NF-κB/JNK signaling.
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Affiliation(s)
- Guangwei Zhu
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Qiang Huang
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Yongjian Huang
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Wei Zheng
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Jin Hua
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Shugang Yang
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Jinfu Zhuang
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Jinzhou Wang
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Jianxin Ye
- Department of Gastrointestinal Surgery 2 Section, The First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
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11
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Li W, Lee MR, Kim T, Kim YW, Cho MY. Activated STAT3 may participate in tumor progression through increasing CD133/survivin expression in early stage of colon cancer. Biochem Biophys Res Commun 2018; 497:354-361. [PMID: 29432737 DOI: 10.1016/j.bbrc.2018.02.084] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 02/08/2018] [Indexed: 02/07/2023]
Abstract
The activation of signal transducer and activator of transcription 3 (STAT3) by elevated interleukin (IL) levels has been reported to regulate tumorigenesis both in vitro and in vivo. However, the clinical implication of p-STAT3 expression in colon cancer is still controversial. In this study, we evaluated the effect of STAT3 inactivation on biologic behavior of primary (Caco-2) and metastatic colon cancer cells (LoVo and SNU407) and the relation of p-STAT3 expression with the invasion of colon tumor. In vitro study, the STAT3 inhibition by siRNA and stattic treatment significantly reduced colony formation and cell migration and decreased CD133 and survivin the expression compared with a control in all three cell lines. Furthermore, primary cancer cells exhibited a marked decrease in CD133 expression and increased apoptosis compared to metastatic cells after stattic treatment. The immunohistochemical assay using clinical samples of colonic tumors with various invasion depth showed that p-STAT3 expression was inversely associated with tumor invasion (p = 0.001, hazard ratio (HR) = 0.328, 95% confidence interval (95%CI): 0.170-0.632). In conclusion, p-STAT3 may participate in the progression of the early stage of colon cancer through the up-regulation of CD133, which in turn induces survivin expression. However, the regulatory mechanism of these molecules in tumor progression in vivo is need to be more verified.
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Affiliation(s)
- Wanlu Li
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, South Korea.
| | - Mi-Ra Lee
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, South Korea.
| | - Taeyeong Kim
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, South Korea.
| | - Young Wan Kim
- Division of Colorectal Surgery, Yonsei University Wonju College of Medicine, Wonju, South Korea.
| | - Mee-Yon Cho
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, South Korea; Institute of Genomic Cohort, Yonsei University Wonju College of Medicine, Wonju, South Korea.
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12
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Wang CZ, Anderson S, Yuan CS. Phytochemistry and Anticancer Potential of Notoginseng. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2016; 44:23-34. [PMID: 26916912 DOI: 10.1142/s0192415x16500026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Asian ginseng, American ginseng, and notoginseng are three major species in the ginseng family. Notoginseng is a Chinese herbal medicine with a long history of use in many Oriental countries. This botanical has a distinct ginsenoside profile compared to other ginseng herbs. As a saponin-rich plant, notoginseng could be a good candidate for cancer chemoprevention. However, to date, only relatively limited anticancer studies have been conducted on notoginseng. In this paper, after reviewing its anticancer data, phytochemical isolation and analysis of notoginseng is presented in comparison with Asian ginseng and American ginseng. Over 80 dammarane saponins have been isolated and elucidated from different plant parts of notoginseng, most of them belonging to protopanaxadiol or protopanaxatriol groups. The role of the enteric microbiome in mediating notoginseng metabolism, bioavailability, and pharmacological actions are discussed. Emphasis has been placed on the identification and isolation of enteric microbiome-generated notoginseng metabolites. Future investigations should provide key insights into notoginseng's bioactive metabolites as clinically valuable anticancer compounds.
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Affiliation(s)
- Chong-Zhi Wang
- * Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Samantha Anderson
- * Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Chun-Su Yuan
- * Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, Pritzker School of Medicine, University of Chicago, Chicago, IL 60637, USA.,† Committee on Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago, IL 60637, USA
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13
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Tanner SM, Daft JG, Hill SA, Martin CA, Lorenz RG. Altered T-Cell Balance in Lymphoid Organs of a Mouse Model of Colorectal Cancer. J Histochem Cytochem 2016; 64:753-767. [PMID: 27798287 DOI: 10.1369/0022155416672418] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 09/06/2016] [Indexed: 12/17/2022] Open
Abstract
The adenomatous polyposis coli (APC) gene is a known tumor suppressor gene, and mice with mutations in Apc (ApcMin/+) spontaneously form multiple intestinal neoplasms. In this model of human colorectal cancer (CRC), it has been reported that CD4+ T-cell-derived interleukin 17 (IL-17) promotes intestinal tumor development, but it is not known if the Apc mutation actually directly alters T-cell function and subsequently tumor immunosurveillance. To investigate the ApcMin/+ mutation on T-cell function, flow cytometric, histochemical, and immunofluorescent studies on both wild-type (Apc+/+) and ApcMin/+ mice were performed. We identified decreased levels of interferon gamma (IFN-γ+)IL-17+ double-positive CD4+ cells in the mesenteric lymph nodes and Peyer's patches of ApcMin/+ mice. In addition, altered levels of CD8+ cells, and changes in CD8+ production of IFN-γ and granzyme B were observed. These T-cell alterations did modify tumor immunosurveillance, as the adoptive transfer of splenocytes from ApcMin/+ animals into a chemically induced CRC model resulted in the inability to prevent epithelial dysplasia. These results suggest an altered T-cell balance in ApcMin/+ mice may disrupt intestinal homeostasis, consequently limiting intestinal tumor immunosurveillance.
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Affiliation(s)
- Scott M Tanner
- Department of Biological, Physical, and Earth Sciences, Limestone College, Gaffney, South Carolina (SMT).,Division of Pediatric Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama (CAM)
| | - Joseph G Daft
- Department of Natural Sciences and Mathematics, Lee University, Cleveland, Tennessee (JGD)
| | - Stephanie A Hill
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (SAH, RGL)
| | - Colin A Martin
- Division of Pediatric Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama (CAM)
| | - Robin G Lorenz
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama (SAH, RGL)
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14
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Wang CZ, Yu C, Wen XD, Chen L, Zhang CF, Calway T, Qiu Y, Wang Y, Zhang Z, Anderson S, Wang Y, Jia W, Yuan CS. American Ginseng Attenuates Colitis-Associated Colon Carcinogenesis in Mice: Impact on Gut Microbiota and Metabolomics. Cancer Prev Res (Phila) 2016; 9:803-811. [PMID: 27443884 DOI: 10.1158/1940-6207.capr-15-0372] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 07/07/2016] [Indexed: 12/18/2022]
Abstract
Inflammatory bowel disease is a risk factor for colorectal cancer initiation and development. In this study, the effects of American ginseng on chemically induced colitis and colon carcinogenesis were evaluated using an azoxymethane (AOM)/dextran sulfate sodium (DSS) mouse model. During the acute phase on day 15, the oral administration of ginseng (15 and 30 mg/kg/day) significantly suppressed AOM/DSS-induced colitis, as demonstrated by the disease activity index and colon tissue histology. During the chronic phase in week 13, AOM/DSS-induced tumor multiplicity was significantly suppressed by ginseng. Ginseng significantly attenuated the increase of inflammatory cytokines, such as IL1α, IL1β, IL6, G-CSF, and GM-CSF. Serum metabolomics data in the PCA plots showed good separation between the AOM/DSS model and ginseng-treated mice, and the most important endogenous metabolite changes were identified. The 16S rRNA data showed that after AOM/DSS, the microbiome community in the model group was obviously changed, and ginseng inhibited these changes. Fecal metabolomics analysis supported these findings. In conclusion, oral ginseng significantly decreased AOM/DSS-induced colitis and colon carcinogenesis by inhibiting inflammatory cytokines and restoring the metabolomics and microbiota profiles accordingly. Selective endogenous small molecules could be used as biomarkers to elucidate the effects of ginseng treatment. Cancer Prev Res; 9(10); 803-11. ©2016 AACR.
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Affiliation(s)
- Chong-Zhi Wang
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois. Department of Anesthesia & Critical Care, University of Chicago, Chicago, Illinois
| | - Chunhao Yu
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois. School of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Xiao-Dong Wen
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois. State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Lina Chen
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois. Department of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Chun-Feng Zhang
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois. State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Tyler Calway
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois. Department of Anesthesia & Critical Care, University of Chicago, Chicago, Illinois
| | - Yunping Qiu
- Einstein-Sinai Diabetes Research Center, Albert Einstein College of Medicine, Bronx, New York
| | - Yunwei Wang
- Department of Medicine, University of Chicago, Chicago, Illinois
| | - Zhiyu Zhang
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois. Department of Anesthesia & Critical Care, University of Chicago, Chicago, Illinois
| | - Samantha Anderson
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, and Institute of Chinese Medical Sciences, University of Macau, Macau
| | - Wei Jia
- University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research, University of Chicago, Chicago, Illinois. Department of Anesthesia & Critical Care, University of Chicago, Chicago, Illinois. Committee on Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago, Illinois.
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15
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Abstract
It is now well established that a healthy gut flora is largely responsible for the overall health of the host, while a perturbation in gut microbial communities can contribute to disease susceptibility. Obesity is a complex process involving genetic and environmental factors with an epidemiological burden that makes it a major public health issue. Studies of germ-free or gnotobiotic mice provided evidence that the diversity, as well as the presence and relative proportion of different microbes in the gut play active roles in energy homeostasis. Similarly, human studies showed that both the diversity of the microbiota and the Bacteroidetes/Firmicutes ratio are decreased in obese individuals. The 'obese microbiota' seems to be able to increase dietary energy harvest and favor weight gain and fat deposition. Although research in this field has just started and many of the available data are still conflicting, the results are providing exciting perspectives, and gut microbiota manipulation has already become a new target for both prevention and treatment of obesity.
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Affiliation(s)
- Debora Compare
- Department of Clinical Medicine and Surgery, Hepatogastroenterology Unit, University Federico II, Naples, Italy
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16
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Integrating Immunologic Signaling Networks: The JAK/STAT Pathway in Colitis and Colitis-Associated Cancer. Vaccines (Basel) 2016; 4:vaccines4010005. [PMID: 26938566 PMCID: PMC4810057 DOI: 10.3390/vaccines4010005] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 02/19/2016] [Accepted: 02/25/2016] [Indexed: 12/12/2022] Open
Abstract
Cytokines are believed to be crucial mediators of chronic intestinal inflammation in inflammatory bowel diseases (IBD) such as Crohn's disease (CD) and ulcerative colitis (UC). Many of these cytokines trigger cellular effects and functions through signaling via janus kinase (JAK) and signal transducer and activator of transcription (STAT) molecules. In this way, JAK/STAT signaling controls important events like cell differentiation, secretion of cytokines or proliferation and apoptosis in IBD in both adaptive and innate immune cells. Moreover, JAK/STAT signaling, especially via the IL-6/STAT3 axis, is believed to be involved in the transition of inflammatory lesions to tumors leading to colitis-associated cancer (CAC). In this review, we will introduce the main cellular players and cytokines that contribute to pathogenesis of IBD by JAK/STAT signaling, and will highlight the integrative function that JAK/STATs exert in this context as well as their divergent role in different cells and processes. Moreover, we will explain current concepts of the implication of JAK/STAT signaling in CAC and finally discuss present and future therapies for IBD that interfere with JAK/STAT signaling.
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17
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Abedin-Do A, Taherian-Esfahani Z, Ghafouri-Fard S, Ghafouri-Fard S, Motevaseli E. Immunomodulatory effects of Lactobacillus strains: emphasis on their effects on cancer cells. Immunotherapy 2015; 7:1307-29. [PMID: 26595390 DOI: 10.2217/imt.15.92] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Lactobacilli are a group of normal microbiota whose immunomodulatory effects have been known for a long time. Recently, they have gained more attention for their direct and indirect effects on cancer cells. Several cell line experiments, animal model studies as well as clinical trials have indicated their inhibitory effects on cancer initiation and progression. Different lactobacilli strains could modulate innate and adoptive immune system. Such effects have been documented in modulation of function of T cells, dendritic cells and macrophages as well as cytokine production. In this review, the various immunomodulatory effects of lactobacilli on tumor cells as well as their direct cytotoxic effects on cancer cells are discussed.
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Affiliation(s)
- Atieh Abedin-Do
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran 19857-17443, Iran
| | - Zahra Taherian-Esfahani
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran 19857-17443, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran 19857-17443, Iran
| | - Somayyeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran 19857-17443, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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18
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Abstract
Cancer is a leading cause of death in the United States. Angiogenesis inhibitors have been introduced for the treatment of cancer. Based on the fact that many anticancer agents have been developed from botanical sources, there is a significant untapped resource to be found in natural products. American ginseng is a commonly used herbal medicine in the U.S., which possesses antioxidant properties. After oral ingestion, natural ginseng saponins are biotransformed to their metabolites by the enteric microbiome before being absorbed. The major metabolites, ginsenoside Rg3 and compound K, showed significant potent anticancer activity compared to that of their parent ginsenosides Rb1, Rc, and Rd. In this review, the molecular mechanisms of ginseng metabolites on cancer chemoprevention, especially apoptosis and angiogenic inhibition, are discussed. Ginseng gut microbiome metabolites showed significant anti-angiogenic effects on pulmonary, gastric and ovarian cancers. This review suggests that in addition to the chemopreventive effects of ginseng compounds, as angiogenic inhibitors, ginsenoside metabolites could be used in combination with other cancer chemotherapeutic agents in cancer management.
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19
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Pithva SP, Ambalam PS, Ramoliya JM, Dave JM, Vyas BRM. Antigenotoxic and Antimutagenic Activities of Probiotic Lactobacillus rhamnosus Vc against N-Methyl-N'-Nitro-N-Nitrosoguanidine. Nutr Cancer 2015; 67:1142-50. [PMID: 26312410 DOI: 10.1080/01635581.2015.1073751] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present study provides experimental evidence of in vivo reduction of genotoxic and mutagenic activities of potent carcinogen N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) by the strain Lactobacillus rhamnosus Vc. In vitro studies revealed that coincubation of MNNG with viable cells of L. rhamnosus Vc resulted in the detoxification of the parent compound accompanied with reduction in genotoxicity (69%) and mutagenicity (61%) as evaluated by SOS-Chromotest and Ames test, respectively. Oral feeding of probiotic bacteria L. rhamnosus Vc (10(9) cfu) to Gallus gallus (chicks) for 30 days provided protection against MNNG-induced damage as evidenced from the significant decrease (P = 0.009) in glutathione S-transferase activity in the L. rhamnosus Vc+MNNG-treated chicks in comparison to the MNNG-treated chicks. Histopathology of colon and liver showed intact cells and mild inflammation in the L. rhamnosus Vc+MNNG-treated chicks, whereas heavy inflammation and degenerative changes were observed in MNNG-treated chicks. The results indicate that the probiotic L. rhamnosus Vc provided in vivo protection against MNNG-induced colon damage by detoxification of MNNG to less toxic metabolites.
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Affiliation(s)
- Sheetal P Pithva
- a Department of Biosciences , Saurashtra University , Rajkot , India
| | - Padma S Ambalam
- b Department of Biotechnology , Christ College , Rajkot , India
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20
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Abstract
The intestinal microbiota and gut immune system must communicate to maintain a balance between tolerance and activation. Our immune system protects us from pathogenic microbes at the same time that our bodies are host to trillions of microbes, symbionts, mutualists, and some that are essential to human health. Since there is such a close interaction between the immune system and the intestinal microbiota, it is not surprising that some lymphomas such as mucosal-associated lymphoid tissue lymphoma have been shown to be caused by the presence of certain bacteria. Animal models have played an important role in elucidating the causation and establishing the mechanism of bacteria-induced mucosal-associated lymphoid tissue lymphoma. In this review, we discuss different ways that animal models have been applied to investigate links between the gut microbiota and lymphoma and have helped to reveal the mechanisms of microbiota-induced lymphoma. Although there is a paucity of published studies demonstrating the interplay between the microbiota and lymphoma development, we believe that the connection is real and that it can be exploited in the future to enhance our understanding of causation and to improve the prognosis and treatment of lymphoma.
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21
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Schulz C, Koch N, Schütte K, Pieper DH, Malfertheiner P. H. pylori and its modulation of gastrointestinal microbiota. J Dig Dis 2015; 16:109-17. [PMID: 25624012 DOI: 10.1111/1751-2980.12233] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The discovery of Helicobacter pylori (H. pylori) changed the dogma of the stomach as a sterile organ. H. pylori is an obligate pathogen in the human stomach and recognized as a definite carcinogen. Extensive research on the interaction of this bacterium with the gastric mucosa has been performed over the past three decades. The development of new nucleotide sequencing techniques and new biocomputational tools has opened the field for studying the diversity and complexity of the microbiome in the gastrointestinal tract independently of cultural methods. These techniques allow to better characterize further gastric bacteria. However, the differentiation of alive resident and transient microbes requires an analysis beyond the pure detection of bacterial genomic material applying a combination with metabolomic analyses. Currently, the interaction of gastric microbiota with each other, with H. pylori and with the host is addressed by extensive research. This review gives a concise overview on current knowledge on this topic.
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Affiliation(s)
- Christian Schulz
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke-University, Magdeburg, Germany; Helmholtz Centre for Infection Research, Microbial Interactions and Processes (MINP) Research Group, Braunschweig, Germany
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22
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23
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Shahanavaj K, Gil-Bazo I, Castiglia M, Bronte G, Passiglia F, Carreca AP, del Pozo JL, Russo A, Peeters M, Rolfo C. Cancer and the microbiome: potential applications as new tumor biomarker. Expert Rev Anticancer Ther 2014; 15:317-30. [PMID: 25495037 DOI: 10.1586/14737140.2015.992785] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Microbial communities that colonize in humans are collectively described as microbiome. According to conservative estimates, about 15% of all types of neoplasms are related to different infective agents. However, current knowledge is not sufficient to explain how the microbiome contributes to the growth and development of cancers. Large and thorough studies involving colonized, diverse and complex microbiome entities are required to identify microbiome as a potential cancer marker and to understand how the immune system is involved in response to pathogens. This article reviews the existing evidence supporting the enigmatic association of transformed microbiome with the development of cancer through the immunological modification. Ascertaining the connection between microbiome and immunological responses with risk of cancer may direct to explaining significant advances in the etiology of cancer, potentially disclosing a novel paradigm of research for the management and prevention of cancer.
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Affiliation(s)
- Khan Shahanavaj
- Department of Bioscience, Shri Ram Group of College (SRGC), Muzaffarnagar, UP, India
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24
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Russo F, Linsalata M, Orlando A. Probiotics against neoplastic transformation of gastric mucosa: Effects on cell proliferation and polyamine metabolism. World J Gastroenterol 2014; 20:13258-13272. [PMID: 25309063 PMCID: PMC4188884 DOI: 10.3748/wjg.v20.i37.13258] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 04/02/2014] [Accepted: 06/05/2014] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer is still the second leading cause of cancer death worldwide, accounting for about 10% of newly diagnosed neoplasms. In the last decades, an emerging role has been attributed to the relations between the intestinal microbiota and the onset of both gastrointestinal and non-gastrointestinal neoplasms. Thus, exogenous microbial administration of peculiar bacterial strains (probiotics) has been suggested as having a profound influence on multiple processes associated with a change in cancer risk. The internationally accepted definition of probiotics is live microorganisms that, when administered in adequate amounts, confer a health benefit on the host. The possible effects on the gastrointestinal tract following probiotic administration have been investigated in vitro and in animal models, as well as in healthy volunteers and in patients suffering from different human gastrointestinal diseases. Although several evidences are available on the use of probiotics against the carcinogen Helicobacter pylori, little is still known about the potential cross-interactions among probiotics, the composition and quality of intestinal flora and the neoplastic transformation of gastric mucosa. In this connection, a significant role in cell proliferation is played by polyamines (putrescine, spermidine, and spermine). These small amines are required in both pre-neoplastic and neoplastic tissue to sustain the cell growth and the evidences here provided suggest that probiotics may act as antineoplastic agents in the stomach by affecting also the polyamine content and functions. This review will summarize data on the most widely recognized effects of probiotics against neoplastic transformation of gastric mucosa and in particular on their ability in modulating cell proliferation, paying attention to the polyamine metabolism.
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25
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Yamamoto ML, Schiestl RH. Lymphoma caused by intestinal microbiota. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:9038-49. [PMID: 25257357 PMCID: PMC4199005 DOI: 10.3390/ijerph110909038] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 08/14/2014] [Accepted: 08/15/2014] [Indexed: 12/17/2022]
Abstract
The intestinal microbiota and gut immune system must constantly communicate to maintain a balance between tolerance and activation: on the one hand, our immune system should protect us from pathogenic microbes and on the other hand, most of the millions of microbes in and on our body are innocuous symbionts and some can even be beneficial. Since there is such a close interaction between the immune system and the intestinal microbiota, it is not surprising that some lymphomas such as mucosal-associated lymphoid tissue (MALT) lymphoma have been shown to be caused by the presence of certain bacteria. Animal models played an important role in establishing causation and mechanism of bacteria-induced MALT lymphoma. In this review we discuss different ways that animal models have been applied to establish a link between the gut microbiota and lymphoma and how animal models have helped to elucidate mechanisms of microbiota-induced lymphoma. While there are not a plethora of studies demonstrating a connection between microbiota and lymphoma development, we believe that animal models are a system which can be exploited in the future to enhance our understanding of causation and improve prognosis and treatment of lymphoma.
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Affiliation(s)
- Mitsuko L Yamamoto
- Department of Pathology, Environmental Health and Radiation Oncology, University of California, Los Angeles, Schools of Medicine and Public Health, 10833 Le Conte Ave, Los Angeles, CA 90095, USA.
| | - Robert H Schiestl
- Department of Pathology, Environmental Health and Radiation Oncology, University of California, Los Angeles, Schools of Medicine and Public Health, 10833 Le Conte Ave, Los Angeles, CA 90095, USA.
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26
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Wang LL, Yu XJ, Zhan SH, Jia SJ, Tian ZB, Dong QJ. Participation of microbiota in the development of gastric cancer. World J Gastroenterol 2014; 20:4948-4952. [PMID: 24803806 PMCID: PMC4009526 DOI: 10.3748/wjg.v20.i17.4948] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 12/10/2013] [Accepted: 01/08/2014] [Indexed: 02/06/2023] Open
Abstract
There are a large number of bacteria inhabiting the human body, which provide benefits for the health. Alterations of microbiota participate in the pathogenesis of diseases. The gastric microbiota consists of bacteria from seven to eleven phyla, predominantly Proteobacteria, Firmicutes, Bacteroidetes, Actinobacteria and Fusobacteria. Intrusion by Helicobacter pylori (H. pylori) does not remarkably interrupt the composition and structure of the gastric microbiota. Absence of bacterial commensal from the stomach delays the onset of H. pylori-induced gastric cancer, while presence of artificial microbiota accelerates the carcinogenesis. Altered gastric microbiota may increase the production of N-nitroso compounds, promoting the development of gastric cancer. Further investigation of the carcinogenic mechanisms of microbiota would benefit for the prevention and management of gastric cancer.
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27
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Abstract
The etiology of colon cancer is complex, yet it is undoubtedly impacted by intestinal microbiota. Whether the contribution to colon carcinogenesis is generated through the presence of an overall dysbiosis or by specific pathogens is still a matter for debate. However, it is apparent that interactions between microbiota and the host are mediated by a variety of processes, including signaling cascades, the immune system, host metabolism, and regulation of gene transcription. To fully appreciate the role of microbiota in colon carcinogenesis, it will be necessary to expand efforts to define populations in niche environments, such as colonic crypts, explore cross talk between the host and the microbiota, and more completely define the metabolomic profile of the microbiota. These efforts must be pursued with appreciation that dietary substrates and other environmental modifiers mediate changes in the microbiota, as well as their metabolism and functional characteristics.
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Shapira I, Sultan K, Lee A, Taioli E. Evolving concepts: how diet and the intestinal microbiome act as modulators of breast malignancy. ISRN ONCOLOGY 2013; 2013:693920. [PMID: 24187630 PMCID: PMC3800670 DOI: 10.1155/2013/693920] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 08/25/2013] [Indexed: 02/07/2023]
Abstract
The intestinal microbiome plays an important role in human physiology. Next-generation sequencing technologies, knockout and gnotobiotic mouse models, fecal transplant data and epidemiologic studies have accelerated our understanding of microbiome abnormalities seen in immune diseases and malignancies. Dysbiosis is the disturbed microbiome ecology secondary to external pressures such as host diseases, medications, diet and genetic conditions often leading to abnormalities of the host immune system. Specifically dysbiosis has been shown to lower circulating lymphocytes, and increase neutrophil to lymphocyte ratio, a finding which has been associated with a decreased survival in women with breast cancers. Dysbiosis also plays a role in the recycling of estrogens via the entero-hepatic circulation, increasing estrogenic potency in the host, which is another leading cause of breast malignancy. Non-modifiable factors such as age and genetic mutations disrupt the microbiome, but modifiable factors such as diet may also lead to profound disruptions as well. A better understanding of dietary factors and how they disrupt the microbiome may lead to beneficial nutritional interventions for breast cancer patients.
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Affiliation(s)
- Iuliana Shapira
- Monter Cancer Center, Don Monti Division of Oncology and Division of Hematology, Hofstra North Shore Long Island Jewish School of Medicine, 450 Lakeville Road, Lake Success, NY 11042, USA
| | - Keith Sultan
- Hofstra North Shore Long Island Jewish School of Medicine, Division of Gastroenterology, Hepatology and Nutrition, North Shore University Hospital, 300 Community Drive, Manhasset, NY 11030, USA
| | - Annette Lee
- Feinstein Institute for Medical Research, Robert S. Boas Center for Genomics and Human Genetics and Elmezzi Graduate School of Molecular Medicine, Hofstra North Shore Long Island Jewish School of Medicine, 350 Community Drive, Manhasset, NY 11030, USA
| | - Emanuela Taioli
- Population Health-Hofstra North Shore-LIJ School of Medicine and North Shore/LIJ Health System, 175 Community Drive, Room 203, Great Neck, NY 11021, USA
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29
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Kubatzky KF, Kloos B, Hildebrand D. Signaling cascades of Pasteurella multocida toxin in immune evasion. Toxins (Basel) 2013; 5:1664-81. [PMID: 24064721 PMCID: PMC3798879 DOI: 10.3390/toxins5091664] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 09/17/2013] [Accepted: 09/17/2013] [Indexed: 12/11/2022] Open
Abstract
Pasteurella multocida toxin (PMT) is a protein toxin found in toxigenic strains of Pasteurella multocida. PMT is the causative agent for atrophic rhinitis in pigs, a disease characterized by loss of nasal turbinate bones due to an inhibition of osteoblast function and an increase in osteoclast activity and numbers. Apart from this, PMT acts as a strong mitogen, protects from apoptosis and has an impact on the differentiation and function of immune cells. Many signaling pathways have been elucidated, however, the effect of these signaling cascades as a means to subvert the host’s immune system are just beginning to unravel.
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Affiliation(s)
- Katharina F Kubatzky
- Medical Microbiology and Hygiene, Department of Infectious Diseases, University Hospital Heidelberg, Im Neuenheimer Feld 324, Heidelberg 69120, Germany.
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30
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Piszcz J, Lemancewicz D, Dudzik D, Ciborowski M. Differences and similarities between LC-MS derived serum fingerprints of patients with B-cell malignancies. Electrophoresis 2013. [DOI: 10.1002/elps.201200606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jaroslaw Piszcz
- Department of Haematology; Medical University of Bialystok; Bialystok; Poland
| | | | | | - Michal Ciborowski
- Department of Physical Chemistry; Medical University of Bialystok; Bialystok; Poland
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31
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Zhang JX, Wang K, Mao ZF, Fan X, Jiang DL, Chen M, Cui L, Sun K, Dang SC. Application of liposomes in drug development--focus on gastroenterological targets. Int J Nanomedicine 2013; 8:1325-34. [PMID: 23630417 PMCID: PMC3623572 DOI: 10.2147/ijn.s42153] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Over the past decade, liposomes became a focal point in developing drug delivery systems. New liposomes, with novel lipid molecules or conjugates, and new formulations opened possibilities for safely and efficiently treating many diseases including cancers. New types of liposomes can prolong circulation time or specifically deliver drugs to therapeutic targets. This article concentrates on current developments in liposome based drug delivery systems for treating diseases of the gastrointestinal tract. We will review different types and uses of liposomes in the development of therapeutics for gastrointestinal diseases including inflammatory bowel diseases and colorectal cancer.
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Affiliation(s)
- Jian-Xin Zhang
- Department of General Surgery, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
| | - Kun Wang
- Department of General Surgery, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
| | - Zheng-Fa Mao
- Department of General Surgery, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
| | - Xin Fan
- Department of General Surgery, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
| | - De-Li Jiang
- School of Chemistry and Chemical Engineering of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
| | - Min Chen
- School of Chemistry and Chemical Engineering of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
| | - Lei Cui
- Department of General Surgery, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
| | - Kang Sun
- Department of General Surgery, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
| | - Sheng-Chun Dang
- Department of General Surgery, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, People’s Republic of China
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32
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Oikonomopoulou K, Brinc D, Kyriacou K, Diamandis EP. Infection and cancer: revaluation of the hygiene hypothesis. Clin Cancer Res 2013; 19:2834-41. [PMID: 23536438 DOI: 10.1158/1078-0432.ccr-12-3661] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Several studies have shown that persistent infections and inflammation can favor carcinogenesis. At the same time, certain types of pathogens and antitumor immune responses can decrease the risk of tumorigenesis or lead to cancer regression. Infectious agents and their products can orchestrate a wide range of host immune responses, through which they may positively or negatively modulate cancer development and/or progression. The factors that direct this dichotomous influence of infection-mediated immunity on carcinogenesis are not well understood. Even though not universal, several previous reports have investigated the inverse link of pathogen-induced "benign" inflammation to carcinogenesis and various other pathologies, ranging from autoimmune diseases to allergy and cancer. Several models and ideas are discussed in this review, including the impact of decreased exposure to pathogens, as well as the influence of pathogen load, the timing of infection, and the type of instigated immune response on carcinogenesis. These phenomena should guide future investigations into identifying novel targets within the microbial and host proteome, which will assist in the development of cancer therapeutics and vaccine remedies, analogous to earlier efforts based on helminthic components for the prevention and/or treatment of several pathologies.
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Affiliation(s)
- Katerina Oikonomopoulou
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
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33
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Zhu Q, Gao R, Wu W, Qin H. The role of gut microbiota in the pathogenesis of colorectal cancer. Tumour Biol 2013; 34:1285-300. [PMID: 23397545 DOI: 10.1007/s13277-013-0684-4] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Accepted: 01/28/2013] [Indexed: 12/14/2022] Open
Abstract
The human gastrointestinal tract harbors a complex and abundant microbial community that can reach levels as high as 10(13)-10(14) microorganisms in the colon. These microorganisms are essential to a host's well-being in terms of nutrition and mucosa immunity. However, numerous studies have also implicated members of the colonic microbiota in the development of colorectal cancer (CRC). While CRC involves a genetic component where damaged DNA and genetic instability initiates a malignant transformation, environmental factors can also contribute to the onset of CRC. Furthermore, considering the constant exposure of the colonic mucosa to the microbiome and/or its metabolites, the mucosa has long been proposed to contribute to colon tumorigenesis. However, the mechanistic details of these associations remain unknown. Fortunately, due to technical and conceptual advances, progress in characterizing the taxonomic composition, metabolic capacity, and immunomodulatory activity of human gut microbiota have been made, thereby elucidating its role in human health and disease. Furthermore, the use of experimental animal models and clinical/epidemiological studies of environmental etiological factors has identified a correlation between gut microbiota composition and gastrointestinal cancers. Bacteria continuously stimulate activated immunity in the gut mucosa and also contribute to the metabolism of bile and food components. However, the highest levels of carcinogen production are also associated with gut anaerobic bacteria and can be lowered with live lactobacilli supplements. In this review, evidence regarding the relationship between microbiota and the development of CRC will be discussed, as well as the role for microbial manipulation in affecting disease development.
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Affiliation(s)
- Qingchao Zhu
- Department of Surgery, The Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
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Kipanyula MJ, Seke Etet PF, Vecchio L, Farahna M, Nukenine EN, Nwabo Kamdje AH. Signaling pathways bridging microbial-triggered inflammation and cancer. Cell Signal 2012; 25:403-16. [PMID: 23123499 DOI: 10.1016/j.cellsig.2012.10.014] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 10/26/2012] [Indexed: 02/06/2023]
Abstract
Microbial-triggered inflammation protects against pathogens and yet can paradoxically cause considerable secondary damage to host tissues that can result in tissue fibrosis and carcinogenesis, if persistent. In addition to classical pathogens, gut microbiota bacteria, i.e. a group of mutualistic microorganisms permanently inhabiting the gastrointestinal tract and which plays a key role in digestion, immunity, and cancer prevention, can induce inflammation-associated cancer following the alterations of their microenvironment. Emerging experimental evidence indicates that microbiota members like Escherichia coli and several other genotoxic and mutagenic pathogens can cause DNA damage in various cell types. In addition, the inflammatory response induced by chronic infections with pathogens like the microbiota members Helicobacter spp., which have been associated with liver, colorectal, cervical cancers and lymphoma, for instance, can also trigger carcinogenic processes. A microenvironment including active immune cells releasing high amounts of inflammatory signaling molecules can favor the carcinogenic transformation of host cells. Pivotal molecules released during immune response such as the macrophage migration inhibitory factor (MMIF) and the reactive oxygen and nitrogen species' products superoxide and peroxynitrite, can further damage DNA and cause the accumulation of oncogenic mutations, whereas pro-inflammatory cytokines, adhesion molecules, and growth factors may create a microenvironment promoting neoplastic cell survival and proliferation. Recent findings on the implication of inflammatory signaling pathways in microbial-triggered carcinogenesis as well as the possible role of microbiota modulation in cancer prevention are herein summarized and discussed.
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Affiliation(s)
- Maulilio John Kipanyula
- Department of Veterinary Anatomy, Sokoine University of Agriculture, P.O. Box 3016, Chuo Kikuu, Morogoro, Tanzania
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35
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Normal to cancer microbiome transformation and its implication in cancer diagnosis. Biochim Biophys Acta Rev Cancer 2012; 1826:331-7. [PMID: 22683403 DOI: 10.1016/j.bbcan.2012.05.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Revised: 05/26/2012] [Accepted: 05/29/2012] [Indexed: 01/05/2023]
Abstract
Microbial communities coexisting with humans are collectively known as microbiome. It influences almost every aspect of an individual's body function. Microbiome is idiosyncratic for body condition and its alteration is indicative for several abnormalities. This article discusses about recent ideas for developing microbiology based cancer indicators using alterations in microbiome. It is noteworthy that large exploratory studies are required to identify cancer indicator microorganisms from complex and diverse microbiome constituents. This complexity also warrants that these markers should be used in conjunction with other routine cancer indicators. The present article concludes that such studies can spur development of novel microbiome based cancer diagnostics.
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36
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Li W, Yang Z, Huang DQ, Lv NH. Role of Th17 and IL-17 in Helicobacter pylori-related gastric carcinogenesis. Shijie Huaren Xiaohua Zazhi 2012; 20:936-940. [DOI: 10.11569/wcjd.v20.i11.936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
T helper 17 (Th17) cells are a newly defined subset of CD4+ effecter T cells characterized by the secretion of interleukin 17 (IL-17) and transcription factor RORγ. They play significant roles in the pathogenesis of various tumors and bacterial infectious diseases. Gastric carcinoma is closely related to Helicobacter pylori (H. pylori) infection and has a very high mortality. Evidence shows that both Th17 and IL-17 play critical roles in the pathogenesis of H. pylori-associated gastric carcinoma and precancerous lesions. Elucidation of the roles of Th17 and IL-17 in H. pylori-related gastric carcinogenesis will provide new clues to the early diagnosis, personalized prevention and immunotherapy, vaccination and prognostic evaluation of gastric carcinoma.
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37
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Pimentel GD, Micheletti TO, Pace F, Rosa JC, Santos RVT, Lira FS. Gut-central nervous system axis is a target for nutritional therapies. Nutr J 2012; 11:22. [PMID: 22490672 PMCID: PMC3342925 DOI: 10.1186/1475-2891-11-22] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Accepted: 04/10/2012] [Indexed: 02/08/2023] Open
Abstract
Historically, in the 1950s, the chemist Linus Pauling established a relationship between decreased longevity and obesity. At this time, with the advent of studies involving the mechanisms that modulate appetite control, some researchers observed that the hypothalamus is the "appetite centre" and that peripheral tissues have important roles in the modulation of gut inflammatory processes and levels of hormones that control food intake. Likewise, the advances of physiological and molecular mechanisms for patients with obesity, type 2 diabetes mellitus, inflammatory bowel diseases, bariatric surgery and anorexia-associated diseases has been greatly appreciated by nutritionists. Therefore, this review highlights the relationship between the gut-central nervous system axis and targets for nutritional therapies.
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Affiliation(s)
- Gustavo D Pimentel
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil.
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