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Donadio JLS, Fabi JP. Comparative analysis of pectin and prebiotics on human microbiota modulation in early life stages and adults. Food Funct 2024; 15:6825-6846. [PMID: 38847603 DOI: 10.1039/d4fo01231c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The gut microbiota is essential in human health, influencing various physiological processes ranging from digestion and metabolism to immune function and mental health. Dietary fiber pectins and prebiotics have emerged as key modulators of gut microbiota composition and function, offering potential therapeutic implications for promoting gut health and preventing intestinal inflammatory diseases. In this review, we explore the modulation of gut microbiota by dietary fiber pectins and prebiotics in infants and adults. We begin with an overview of the gut microbiota composition and function in different age groups, highlighting the factors in shaping microbial communities in both age groups, especially the effect of diet. We then delve into the impact of dietary fiber pectins and prebiotics on gut microbiota composition and function, examining their effects on digestive health, intestinal barrier integrity, immune function, metabolic health, and mental health across different life stages. We further compare how aging affects the gut function and immune system, and we discuss the main health outcomes associated with dietary fiber intake and prebiotics, including the impact on digestive health, improvement in immune function, improvement in cholesterol and glucose metabolism, weight management, mental health, and prevention of diseases. Finally, we highlight the challenges and future directions for research. By advancing the understanding of gut microbiota dynamics and translating scientific insights into clinical practice, it could harness the full potential of dietary fiber pectins and prebiotics to optimize gut health, improve overall well-being across the lifespan, and increase longevity.
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Affiliation(s)
- Janaina Lombello Santos Donadio
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil.
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, Brazil
| | - João Paulo Fabi
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil.
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, Brazil
- Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo, Brazil
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2
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Zhang Y, Tang N, Zhou H, Zhu Y. The role of microbial metabolites in endocrine tumorigenesis: From the mechanistic insights to potential therapeutic biomarkers. Biomed Pharmacother 2024; 172:116218. [PMID: 38308969 DOI: 10.1016/j.biopha.2024.116218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/28/2023] [Accepted: 01/22/2024] [Indexed: 02/05/2024] Open
Abstract
Microbial metabolites have been indicated to communicate with the host's endocrine system, regulating hormone production, immune-endocrine communications, and interactions along the gut-brain axis, eventually affecting the occurrence of endocrine cancer. Furthermore, microbiota metabolites such as short-chain fatty acids (SCFAs) have been found to affect the tumor microenvironment and boost immunity against tumors. SCFAs, including butyrate and acetate, have been demonstrated to exert anti-proliferative and anti-protective activity on pancreatic cancer cells. The employing of microbial metabolic products in conjunction with radiation and chemotherapy has shown promising outcomes in terms of reducing treatment side effects and boosting effectiveness. Certain metabolites, such as valerate and butyrate, have been made known to improve the efficiency of CAR T-cell treatment, whilst others, such as indole-derived tryptophan metabolites, have been shown to inhibit tumor immunity. This review explores the intricate interplay between microbial metabolites and endocrine tumorigenesis, spanning mechanistic insights to the discovery of potential therapeutic biomarkers.
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Affiliation(s)
- Yiyi Zhang
- Department of Endocrinology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China
| | - Nie Tang
- Department of Endocrinology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China
| | - Hui Zhou
- Department of Endocrinology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China.
| | - Ying Zhu
- Department of Endocrinology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, China.
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3
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Donadio JLS, Fabi JP, Sztein MB, Salerno-Gonçalves R. Dietary fiber pectin: challenges and potential anti-inflammatory benefits for preterms and newborns. Front Nutr 2024; 10:1286138. [PMID: 38283907 PMCID: PMC10811139 DOI: 10.3389/fnut.2023.1286138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/29/2023] [Indexed: 01/30/2024] Open
Abstract
Pectins, a class of dietary fibers abundant in vegetables and fruits, have drawn considerable interest due to their potential anti-inflammatory properties. Numerous studies have indicated that incorporating pectins into infant formula could be a safe strategy for alleviating infant regurgitation and diarrhea. Moreover, pectins have been shown to modulate cytokine production, macrophage activity, and NF-kB expression, all contributing to their anti-inflammatory effects. Despite this promising evidence, the exact mechanisms through which pectins exert these functions and how their structural characteristics influence these processes remain largely unexplored. This knowledge is particularly significant in the context of gut inflammation in developing preterm babies, a critical aspect of necrotizing enterocolitis (NEC), and in children and adults dealing with inflammatory bowel disease (IBD). Our mini review aims to provide an up-to-date compilation of relevant research on the effects of pectin on gut immune responses, specifically focusing on preterms and newborns. By shedding light on the underlying mechanisms and implications of pectin-mediated anti-inflammatory properties, this review seeks to advance our knowledge in this area and pave the way for future research and potential therapeutic interventions.
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Affiliation(s)
- Janaina L. S. Donadio
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, United States
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, Brazil
| | - João Paulo Fabi
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, Brazil
| | - Marcelo B. Sztein
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Rosângela Salerno-Gonçalves
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, United States
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Modulation of the Tumor Microenvironment by Microbiota-Derived Short-Chain Fatty Acids: Impact in Colorectal Cancer Therapy. Int J Mol Sci 2023; 24:ijms24065069. [PMID: 36982144 PMCID: PMC10048801 DOI: 10.3390/ijms24065069] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Finding new therapeutic approaches towards colorectal cancer (CRC) is of increased relevance, as CRC is one of the most common cancers worldwide. CRC standard therapy includes surgery, chemotherapy, and radiotherapy, which may be used alone or in combination. The reported side effects and acquired resistance associated with these strategies lead to an increasing need to search for new therapies with better efficacy and less toxicity. Several studies have demonstrated the antitumorigenic properties of microbiota-derived short-chain fatty acids (SCFAs). The tumor microenvironment is composed by non-cellular components, microbiota, and a great diversity of cells, such as immune cells. The influence of SCFAs on the different constituents of the tumor microenvironment is an important issue that should be taken into consideration, and to the best of our knowledge there is a lack of reviews on this subject. The tumor microenvironment is not only closely related to the growth and development of CRC but also affects the treatment and prognosis of the patients. Immunotherapy has emerged as a new hope, but, in CRC, it was found that only a small percentage of patients benefit from this treatment being closely dependent on the genetic background of the tumors. The aim of this review was to perform an up-to-date critical literature review on current knowledge regarding the effects of microbiota-derived SCFAs in the tumor microenvironment, particularly in the context of CRC and its impact in CRC therapeutic strategies. SCFAs, namely acetate, butyrate, and propionate, have the ability to modulate the tumor microenvironment in distinct ways. SCFAs promote immune cell differentiation, downregulate the expression of pro-inflammatory mediators, and restrict the tumor-induced angiogenesis. SCFAs also sustain the integrity of basement membranes and modulate the intestinal pH. CRC patients have lower concentrations of SCFAs than healthy individuals. Increasing the production of SCFAs through the manipulation of the gut microbiota could constitute an important therapeutic strategy towards CRC due to their antitumorigenic effect and ability of modulating tumor microenvironment.
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5
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Liu L, Lu Y, Xu C, Chen H, Wang X, Wang Y, Cai B, Li B, Verstrepen L, Ghyselinck J, Marzorati M, Yao Q. The Modulation of Chaihu Shugan Formula on Microbiota Composition in the Simulator of the Human Intestinal Microbial Ecosystem Technology Platform and its Influence on Gut Barrier and Intestinal Immunity in Caco-2/THP1-Blue™ Cell Co-Culture Model. Front Pharmacol 2022; 13:820543. [PMID: 35370677 PMCID: PMC8964513 DOI: 10.3389/fphar.2022.820543] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/24/2022] [Indexed: 12/15/2022] Open
Abstract
The traditional Chinese medicine (TCM)–Chaihu Shugan Formula (CSF), consisting of several Chinese botanical drugs like Bupleurum, is derived from the ancient Chinese pharmacopeia. It has been used for more than thousands of years in various suboptimal health statuses and diseases induced by chronic stress based on empirical therapy. Recent studies confirm the role of CSF in the development of many diseases, including depression, stress-induced hepatic injury and tumors. However, little has been known about the mechanisms behind the health effects of CSF. Here, we investigate the influence of CSF on the modulation of the simulated colonic microbiota of five healthy donors, gut barrier integrity, and intestinal immunity by combining the simulator of the human intestinal microbial ecosystem (SHIME®) technology platform with co-culture of intestinal and immune cells. This approach revealed that CSF stimulated the production of SCFA (acetate, propionate and butyrate) across donors while significantly lowering the production of branched SCFA (bSCFA). In terms of community composition, CSF stimulated a broad spectrum of health-related Bifidobacterium species, which are potent acetate and lactate producers. At the same time, it lowered the abundance of opportunistic pathogenic Escherichia coli. Later, we explore the effect of colonic fermentation of CSF on the gut barrier and intestinal immunity in the Caco-2/THP1-blue™ cell co-culture model. Based on the study using SHIME technology platform, CSF showed protective effects on inflammation-induced intestinal epithelial barrier disruption in all donors. Also, the treatment of CSF showed pronounced anti-inflammatory properties by strongly inducing anti-inflammatory cytokines IL-6 and IL-10 and reducing pro-inflammatory cytokine TNF-α. These findings demonstrate a significant modulatory effect of CSF on intestinal gut microbiota. CSF-microbial fermentation products improved the gut barrier and controlled intestinal inflammation.
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Affiliation(s)
- Ling Liu
- Department of Integrated Chinese and Western Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Yi Lu
- Department of Clinical Nutrition, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Chao Xu
- Department of Integrated Chinese and Western Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Haitao Chen
- Department of Integrated Chinese and Western Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Xuanying Wang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yijie Wang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Biyu Cai
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Bing Li
- Leuven Health Technology Centre China Centre, Hangzhou, China
| | | | | | - Massimo Marzorati
- Center of Microbial Ecology and Technology (CMET), Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.,ProDigest BV, Technologiepark, Zwijnaarde, Belgium
| | - Qinghua Yao
- Department of Integrated Chinese and Western Medicine, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.,Key Laboratory of Traditional Chinese Medicine Oncology, Zhejiang Cancer Hospital, Hangzhou, China.,Key Laboratory of Head and Neck Cancer Translational Research of Zhejiang Province, Hangzhou, China
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6
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Donadio JLS, Prado SBRD, Rogero MM, Fabi JP. Effects of pectins on colorectal cancer: targeting hallmarks as a support for future clinical trials. Food Funct 2022; 13:11438-11454. [DOI: 10.1039/d2fo01995g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The intake of dietary fibers has been associated with a reduction in the risk of colorectal cancer.
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Affiliation(s)
- Janaina L. S. Donadio
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, Brazil
| | | | - Marcelo M. Rogero
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, Brazil
- Department of Nutrition, School of Public Health University of São Paulo, Sao Paulo, Brazil
| | - João Paulo Fabi
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, Brazil
- Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo, Brazil
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7
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Lee PS, Nagabhushanam K, Ho CT, Pan MH. Inhibitory Effect of Garcinol on Obesity-Exacerbated, Colitis-Mediated Colon Carcinogenesis. Mol Nutr Food Res 2021; 65:e2100410. [PMID: 34245224 DOI: 10.1002/mnfr.202100410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/16/2021] [Indexed: 12/24/2022]
Abstract
SCOPE Epidemiological studies show a consistent and compelling association between the risk of colorectal cancer development and obesity, but its mechanisms remain poorly understood. Evidence is mounting that colorectal cancer can be prevented by nutritional supplements, such as phytochemicals. Garcinol, a polyisoprenylated benzophenone derivative, is widely present in Garcinia plants. This study investigates the potential role of garcinol supplementation in ameliorating obesity-induced colon cancer development. METHODS AND RESULTS An animal model to investigate the effect of high-fat-diet (HFD)-induced obesity on promoting colitis-associated colon cancer (AOM (azoxymethane)/DSS (dextran sodium sulfate)-induced) is designed. The results show that HFD can promote colitis-associated colon cancer as compared to an AOM/DSS group without the intervention of obesity, and supplementing with 0.05% garcinol in the diet can significantly ameliorate obesity-promoted colon carcinogenesis. The results also reveals that the microbiota composition of each group is significantly different and clustered. The most representative genera are Alistipes, Romboutsia, and Ruminococcus. The RNA-sequencing results show that the administration of garcinol can regulate genes and improve obesity-promoting colitis-associated colon carcinogenesis. CONCLUSION The study results suggest that garcinol can prevent obesity-promoted colorectal cancer, and these findings provide important niches for the future development of garcinol as functional foods or adjuvant therapeutic agents.
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Affiliation(s)
- Pei-Sheng Lee
- Institute of Food Science and Technology, National Taiwan University, Taipei, 10617, Taiwan
| | | | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei, 10617, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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8
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Acuff HL, Aldrich CG. Evaluation of graded levels of Bacillus coagulans GBI-30, 6086 on apparent nutrient digestibility, stool quality, and intestinal health indicators in healthy adult dogs. J Anim Sci 2021; 99:6262623. [PMID: 33940614 PMCID: PMC8158428 DOI: 10.1093/jas/skab137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/29/2021] [Indexed: 12/11/2022] Open
Abstract
Bacillus coagulans GBI-30, 6086 is a commercially available spore-forming non-toxigenic microorganism approved for use in dog foods with high resiliency to stresses associated with commercial manufacturing. The objectives of this research were to examine the effect of B. coagulans on stool quality, nutrient digestibility, and intestinal health markers in healthy adult dogs. Extruded diets containing graded levels of B. coagulans applied either to the base ration before extrusion or to the exterior of the kibble as a topical coating after extrusion were randomly assigned to 10 individually housed adult beagle dogs (7 castrated males and 3 spayed females) of similar age (5.75 ± 0.23 yr) and body weight (12.3 ± 1.5 kg). The study was designed as a 5 × 5 replicated Latin square with 16-d adaptation followed by 5-d total fecal collection for each period. Five dietary treatments were formulated to deliver a dose of 0-, 6-, 7-, 8-, and 9-log10 colony-forming units (CFU) per dog per day for the control (CON), extruded B. coagulans (PEX), and low, moderate, and high B. coagulans coating levels (PCL, PCM, and PCH), respectively. Food-grade TiO2 was added to all diets at a level of 0.4% to serve as an indigestible dietary marker for digestibility calculations. Data were analyzed using a mixed model through SAS (version 9.4, SAS Institute, Inc., Cary, NC) with treatment as a fixed effect and room (i.e., replicate), period, and dog(room) as random effects. Apparent total tract digestibility of organic matter, crude protein, crude fat, and gross energy calculated by the marker method were numerically greatest for dogs fed the 9-log10 dose treatment with increases (P < 0.05) observed in gross energy and organic matter digestibility compared with the negative control. No significant differences were observed in food intake, stool quality, fecal pH, fecal ammonia, fecal short-chain fatty acids, or branched-chain fatty acids for the extruded B. coagulans treatment (PEX) or the coated B. coagulans treatments (PCL, PCM, and PCH) compared with CON. These results suggest that B. coagulans has a favorable impact on nutrient digestibility and no apparent adverse effects when added to extruded diets at a daily intake level of up to 9-log10 CFU in healthy adult dogs.
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Affiliation(s)
- Heather L Acuff
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS 66506, USA
| | - Charles G Aldrich
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS 66506, USA
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Zhu R, Lang T, Yan W, Zhu X, Huang X, Yin Q, Li Y. Gut Microbiota: Influence on Carcinogenesis and Modulation Strategies by Drug Delivery Systems to Improve Cancer Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003542. [PMID: 34026439 PMCID: PMC8132165 DOI: 10.1002/advs.202003542] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/05/2021] [Indexed: 05/05/2023]
Abstract
Gut microbiota have close interactions with the host. It can affect cancer progression and the outcomes of cancer therapy, including chemotherapy, immunotherapy, and radiotherapy. Therefore, approaches toward the modulation of gut microbiota will enhance cancer prevention and treatment. Modern drug delivery systems (DDS) are emerging as rational and promising tools for microbiota intervention. These delivery systems have compensated for the obstacles associated with traditional treatments. In this review, the essential roles of gut microbiota in carcinogenesis, cancer progression, and various cancer therapies are first introduced. Next, advances in DDS that are aimed at enhancing the efficacy of cancer therapy by modulating or engineering gut microbiota are highlighted. Finally, the challenges and opportunities associated with the application of DDS targeting gut microbiota for cancer prevention and treatment are briefly discussed.
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Affiliation(s)
- Runqi Zhu
- State Key Laboratory of Drug Research and Center of PharmaceuticsShanghai Institute of Materia MedicaChinese Academy of Sciences501 Haike RoadShanghai201203China
- School of PharmacyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Tianqun Lang
- State Key Laboratory of Drug Research and Center of PharmaceuticsShanghai Institute of Materia MedicaChinese Academy of Sciences501 Haike RoadShanghai201203China
- School of PharmacyUniversity of Chinese Academy of SciencesBeijing100049China
- Yantai Key Laboratory of Nanomedicine and Advanced PreparationsYantai Institute of Materia MedicaYantai264000China
| | - Wenlu Yan
- State Key Laboratory of Drug Research and Center of PharmaceuticsShanghai Institute of Materia MedicaChinese Academy of Sciences501 Haike RoadShanghai201203China
- School of PharmacyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Xiao Zhu
- State Key Laboratory of Drug Research and Center of PharmaceuticsShanghai Institute of Materia MedicaChinese Academy of Sciences501 Haike RoadShanghai201203China
- School of PharmacyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Xin Huang
- State Key Laboratory of Drug Research and Center of PharmaceuticsShanghai Institute of Materia MedicaChinese Academy of Sciences501 Haike RoadShanghai201203China
- School of PharmacyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Qi Yin
- State Key Laboratory of Drug Research and Center of PharmaceuticsShanghai Institute of Materia MedicaChinese Academy of Sciences501 Haike RoadShanghai201203China
- School of PharmacyUniversity of Chinese Academy of SciencesBeijing100049China
- Yantai Key Laboratory of Nanomedicine and Advanced PreparationsYantai Institute of Materia MedicaYantai264000China
| | - Yaping Li
- State Key Laboratory of Drug Research and Center of PharmaceuticsShanghai Institute of Materia MedicaChinese Academy of Sciences501 Haike RoadShanghai201203China
- School of PharmacyUniversity of Chinese Academy of SciencesBeijing100049China
- Yantai Key Laboratory of Nanomedicine and Advanced PreparationsYantai Institute of Materia MedicaYantai264000China
- School of PharmacyYantai UniversityYantai264005China
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10
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Ashaolu TJ, Ashaolu JO. Prebiotic peptides, their formation, fermentation in the gut, and health implications. Biotechnol Prog 2021; 37:e3142. [PMID: 33666376 DOI: 10.1002/btpr.3142] [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: 01/05/2021] [Revised: 01/20/2021] [Accepted: 01/30/2021] [Indexed: 12/19/2022]
Abstract
Prebiotics can be synthesized from sources other than dietary fibers, such as proteins. The proteins, when processed into peptides have healthful or deleterious effects on the host. Outside living systems, prebiotic peptides (PP) are formed via preformation of amino acids or related monomeric building blocks, resulting in nonenzymatic polymerization/ligation to produce peptides. Whereas, inside living systems like the human gut, many metabolic pathways are involved in PP production, and mostly involve host-microbiota interactions. The interplay is responsible for PP activities and their implications on host amino acid balance and metabolism. Similar to carbohydrates fermentation, PP will yield short chain fatty acids (SCFA), but also branched chain fatty acids (BCFAs), phenols, indole, hydrogen sulfide, amines, and ammonia, capable of biologically mediating molecular signals. This holistic review considers a brief description of prebiotics, and tracks down prebiotic peptides formation processes, interactions with gut microbes, and health outcomes.
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Affiliation(s)
- Tolulope Joshua Ashaolu
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.,Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, Vietnam
| | - Joseph O Ashaolu
- International Health Programme, School of Medicine, National Yang-Ming University, Taipei, Taiwan
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11
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Pan MH, Koh YC, Liu SY, Wu JC, Chou YC, Nagabhushanam K, Ho CT. A new metabolite: The effects of aminated tetrahydrocurcumin on inducible nitric oxide synthase and cyclooxygenase-2. JOURNAL OF CANCER RESEARCH AND PRACTICE 2021. [DOI: 10.4103/jcrp.jcrp_21_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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12
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Gong L, Wen T, Wang J. Role of the Microbiome in Mediating Health Effects of Dietary Components. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:12820-12835. [PMID: 32131598 DOI: 10.1021/acs.jafc.9b08231] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Numerous recent observation and intervention studies suggest that the microbiota in the gut and oral cavity play important roles in host physiology, including disease development and progression. Of the many environmental factors involved, dietary components play a pivotal role in shaping the microbiota community and function, thus eliciting beneficial or detrimental consequences on host health. The microbiota affect human physiology by altering the chemical structures of dietary components, thus creating new biological properties and modifying their lifetime and bioavailability. This review will describe the causal mechanisms between the microbiota and some specific bacterial species and diet components providing health benefits and how this knowledge could be incorporated in dietary strategies for improving human health.
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Affiliation(s)
- Lingxiao Gong
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing 100048, People's Republic of China
| | - Tingting Wen
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing 100048, People's Republic of China
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Advanced Innovation Center for Food Nutrition and Human Health (BTBU), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing 100048, People's Republic of China
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13
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Imatinib exhibit synergistic pleiotropy in the prevention of colorectal cancer by suppressing proinflammatory, cell survival and angiogenic signaling. Cell Signal 2020; 76:109803. [PMID: 33022360 DOI: 10.1016/j.cellsig.2020.109803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/26/2020] [Accepted: 09/30/2020] [Indexed: 12/24/2022]
Abstract
Recent global incidences and mortality rates have placed colorectal cancer (CRC) at third and second positions, respectively, among both sexes of all ages. Resistance during chemotherapy is a big problem in the treatment and disease-free survival of CRC patients. Discovery of new anticancer drug(s) is a time taking process and therefore, invites studies for repurposing the known therapeutics. The present study was conceived to analyze the anticancer role of Imatinib in experimental CRC at early stages. Different experimental procedures e.g. tumor incidences or histoarchitectural changes, gene and protein expression analysis, estimations of intracellular calcium, ROS, mitochondrial membrane potential, apoptotic index and molecular docking was performed to support the hypothesis. It was observed that Imatinib could function as an immunomodulator by breaking the feed-back loop between the proinflammatory cytokines (IL-1β and TNF-α) and transcription factors (NF-κB, Jak3/Stat3) knowingly involved in increased cell proliferation during tumorigenesis via activating different intracellular signaling. Also, Imatinib could independently deregulate the other cell survival and proliferation signaling e.g. PI3-K/Akt/mTOR, Wnt/β-catenin and MAPK. Proinflammatory cytokines orchestrated intracellular signaling also involve angiogenic factors to be upregulated during CRC which were also seemed to be independently suppressed by Imatinib. Restoration of physiological apoptosis by increasing the release of intracellular calcium to generate ROS thereby reducing the mitochondrial membrane potential for the release of cytochrome c and activation of caspase-3 was also reported with Imatinib administration. Thus, it may be suggested that Imatinib show synergistic pleiotropy in suppressing the interlinked tumorigenic signaling pathways independently.
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Parker BJ, Wearsch PA, Veloo ACM, Rodriguez-Palacios A. The Genus Alistipes: Gut Bacteria With Emerging Implications to Inflammation, Cancer, and Mental Health. Front Immunol 2020; 11:906. [PMID: 32582143 PMCID: PMC7296073 DOI: 10.3389/fimmu.2020.00906] [Citation(s) in RCA: 733] [Impact Index Per Article: 183.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 04/20/2020] [Indexed: 12/12/2022] Open
Abstract
Alistipes is a relatively new genus of bacteria isolated primarily from medical clinical samples, although at a low rate compared to other genus members of the Bacteroidetes phylum, which are highly relevant in dysbiosis and disease. According to the taxonomy database at The National Center for Biotechnology Information, the genus consists of 13 species: Alistipes finegoldii, Alistipes putredinis, Alistipes onderdonkii, Alistipes shahii, Alistipes indistinctus, Alistipes senegalensis, Alistipes timonensis, Alistipes obesi, Alistipes ihumii, Alistipes inops, Alistipes megaguti, Alistipes provencensis, and Alistipes massiliensis. Alistipes communis and A. dispar, and the subspecies A. Onderdonkii subspecies vulgaris (vs. onderdonkii subsp.) are the newest strains featured outside that list. Although typically isolated from the human gut microbiome various species of this genus have been isolated from patients suffering from appendicitis, and abdominal and rectal abscess. It is possible that as Alistipes spp. emerge, their identification in clinical samples may be underrepresented as novel MS-TOF methods may not be fully capable to discriminate distinct species as separate since it will require the upgrading of MS-TOF identification databases. In terms of pathogenicity, there is contrasting evidence indicating that Alistipes may have protective effects against some diseases, including liver fibrosis, colitis, cancer immunotherapy, and cardiovascular disease. In contrast, other studies indicate Alistipes is pathogenic in colorectal cancer and is associated with mental signs of depression. Gut dysbiosis seems to play a role in determining the compositional abundance of Alistipes in the feces (e.g., in non-alcoholic steatohepatitis, hepatic encephalopathy, and liver fibrosis). Since Alistipes is a relatively recent sub-branch genus of the Bacteroidetes phylum, and since Bacteroidetes are commonly associated with chronic intestinal inflammation, this narrative review illustrates emerging immunological and mechanistic implications by which Alistipes spp. correlate with human health.
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Affiliation(s)
- Bianca J Parker
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Pamela A Wearsch
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Alida C M Veloo
- Department of Medical Microbiology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Alex Rodriguez-Palacios
- Division of Gastroenterology and Liver Disease, Case Western Reserve University School of Medicine, Cleveland, OH, United States.,Germ-Free and Gut Microbiome, Digestive Health Research Institute, Case Western Reserve University, Cleveland, OH, United States
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15
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Nam S, Choi YJ, Kim DW, Park EC, Kang JG. Risk Factors for Colorectal Cancer in Korea: A Population-Based Retrospective Cohort Study. Ann Coloproctol 2019; 35:347-356. [PMID: 31937075 PMCID: PMC6968718 DOI: 10.3393/ac.2019.10.21] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 10/21/2019] [Indexed: 02/06/2023] Open
Abstract
Purpose The incidence of colorectal cancer in Korea has recently increased, making it the second most common cancer in men and the third most common cancer in women. Risk factors for colorectal cancer have been studied worldwide, but risk factors specific for the Korean population have not been established. In this study, we investigated incidence trends and risk factors of colorectal cancer in Korea. Methods A total of 8,846,749 subjects were included. Colorectal cancer incidence was investigated using Korea National Health Insurance Service claim data from 2004 to 2014. Colorectal cancer diagnoses were obtained by evaluating colorectal cancer diagnostic codes and the cancer registry for cost sharing. Risk factor identification for colorectal cancer was obtained from National Health Examination data from 2004 to 2005. Cox proportional hazard model statistical analysis was used to determine risk factors of colorectal cancer. Results The incidence of colorectal cancer gradually increased from 2006 to 2014 (from 45.4/100,000 to 54.5/100,000). There was a predominance among men (1.47:1), but incidence trends were similar in both sexes. Old age, high body mass index, and no history of colonoscopy were identified as risk factors in both sexes. High fasting blood glucose, familial history of cancer, frequent alcohol intake, and current smoker were identified as risk factors, especially in men. Conclusion The incidence of colorectal cancer has been increasing in Korea. Colonoscopy screening was a protective factor for colorectal cancer, and active use of colonoscopy may reduce incidence. Early diagnosis and care are important, particularly for the high-risk group.
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Affiliation(s)
- Soomin Nam
- Department of Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Yoon Jung Choi
- Department of Pathology, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Dong Wook Kim
- Big data department, National Health Insurance Service, Wonju, Korea
| | - Eun-Cheol Park
- Department of Preventive Medicine & Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea
| | - Jung-Gu Kang
- Department of Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Korea
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Diether NE, Willing BP. Microbial Fermentation of Dietary Protein: An Important Factor in Diet⁻Microbe⁻Host Interaction. Microorganisms 2019; 7:microorganisms7010019. [PMID: 30642098 PMCID: PMC6352118 DOI: 10.3390/microorganisms7010019] [Citation(s) in RCA: 230] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 01/04/2023] Open
Abstract
Protein fermentation by gut microbiota contributes significantly to the metabolite pool in the large intestine and may contribute to host amino acid balance. However, we have a limited understanding of the role that proteolytic metabolites have, both in the gut and in systemic circulation. A review of recent studies paired with findings from previous culture-based experiments suggests an important role for microbial protein fermentation in altering the gut microbiota and generating a diverse range of bioactive molecules which exert wide-ranging host effects. These metabolic products have been shown to increase inflammatory response, tissue permeability, and colitis severity in the gut. They are also implicated in the development of metabolic disease, including obesity, diabetes, and non-alcoholic fatty liver disease (NAFLD). Specific products of proteolytic fermentation such as hydrogen sulfide, ammonia, and p-Cresol may also contribute to the development of colorectal cancer. These findings are in conflict with other studies showing that tryptophan metabolites may improve gut barrier function and attenuate severity in a multiple sclerosis model. Further research examining proteolytic fermentation in the gut may be key to our understanding of how microbial and host metabolism interact affecting health.
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Affiliation(s)
- Natalie E Diether
- Department of Agriculture, Food & Nutritional Science, University of Alberta, Ag/For Centre, Edmonton Alberta, T6G 2P5, Canada.
| | - Benjamin P Willing
- Department of Agriculture, Food & Nutritional Science, University of Alberta, Ag/For Centre, Edmonton Alberta, T6G 2P5, Canada.
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Nirmagustina DE, Khedara A, Benouchenne D, Boubekri K, Yang Y, Suidasari S, Kumrungsee T, Kato N. High-dose D-glucosamine Consumption Increases Serum and Cecum Levels of Ammonia and Ethanol and Causes Bacterial Overgrowth in Rats. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2019. [DOI: 10.3136/fstr.25.107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Abdelkrim Khedara
- Laboratory of Molecular and Cellular Biology, Faculty of Natural and Life Sciences, University of Mentouri Brothers, Constantine 1
| | - Djamila Benouchenne
- Laboratory of Molecular and Cellular Biology, Faculty of Natural and Life Sciences, University of Mentouri Brothers, Constantine 1
| | - Karima Boubekri
- Laboratory of Molecular and Cellular Biology, Faculty of Natural and Life Sciences, University of Mentouri Brothers, Constantine 1
| | - Yongshou Yang
- Graduate School of Biosphere Science, Hiroshima University
| | | | | | - Norihisa Kato
- Graduate School of Biosphere Science, Hiroshima University
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Xia LJ, Wu YL, Ma J, Zhang FC. Therapeutic effects of antimicrobial peptide on malignant ascites in a mouse model. Mol Med Rep 2018; 17:6245-6252. [PMID: 29512744 PMCID: PMC5928604 DOI: 10.3892/mmr.2018.8691] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 04/13/2017] [Indexed: 12/27/2022] Open
Abstract
The primary objective of the treatment of malignant ascites in advanced stages is to alleviate symptoms using procedures such as diuresis, paracentesis of subretinal fluid and vena cava anastomosis. The effectiveness of systemic or intraperitoneal chemotherapy treatment is limited, and more efficacious therapies are required. The authors of the present study demonstrated that an antimicrobial peptide, cecropinXJ, isolated from the larvae of Bombyx mori, selectively inhibits the proliferation of gastric cancer cells. However, the effects of antibacterial peptides on gastric ascites tumor remains unclear. In the present study, the therapeutic effects of cecropinXJ were investigated in mice bearing malignant ascites. Compared with bovine serum albumin treatment, cecropinXJ and doxorubicin (Dox) significantly inhibited the formation and growth of malignant ascites, and prolonged the survival time of ascites tumor‑bearing mice. In addition, cecropinXJ treatment normalized the hematological and biochemical phenotypes, induced tumor cell apoptosis in ascites and improved the survival of mice bearing malignant ascites when compared with Dox treatment. These results suggested that cecropinXJ might be a promising therapeutic candidate for the treatment of gastric cancer‑associated ascites.
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Affiliation(s)
- Li-Jie Xia
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, P.R. China
| | - Yan-Ling Wu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, P.R. China
| | - Ji Ma
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, P.R. China
| | - Fu-Chun Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, P.R. China
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Ohara T, Suzutani T. Intake of Bifidobacterium longum and Fructo-oligosaccharides prevents Colorectal Carcinogenesis. Euroasian J Hepatogastroenterol 2018; 8:11-17. [PMID: 29963455 PMCID: PMC6024036 DOI: 10.5005/jp-journals-10018-1251] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 01/22/2018] [Indexed: 12/30/2022] Open
Abstract
INTRODUCTION We aimed to investigate the effects of intake of yogurt containing Bifidobacterium longum (BB536-y) and fructo-oligosaccharides (FOS) in preventing colorectal carcinogenesis in healthy subjects, and the preventive effects of short-chain fatty acids (SCFA), whose production was enhanced by the intake of BB536-y and FOS, in human colon cancer cell lines. MATERIALS AND METHODS The subjects were 27 healthy persons who were divided into a group taking yogurt containing BB536 (BB536-y group; n = 14) and a group taking yogurt containing BB536 and FOS (BB536-y with FOS group; n = 13) once a day for 5 weeks. The feces were sampled before and after the intake to analyze the amount of SCFA in the feces and the profile of intestinal flora, such as putrefactive bacteria and Bacteroides fragilis enterotoxin (ETBF). Subsequently, human colon cancer cell lines (DLD-1 cells, WirDr cells) were cultured in the presence of SCFA (butyric acid, isobutyric acid, acetic acid) in order to evaluate the cell growth-inhibitory activity of SCFA (WST-8 assay) by calculating the IC50 value from the dose-response curve. RESULTS Intake of BB536-y increased the total amount of SCFA in the feces and significantly suppressed the detection rate of ETBF and growth of putrefactive bacteria. Intake of BB536-y with FOS was associated with a higher Bifidobacterium detection rate than that of BB536-y alone. The contents of butyric acid, isobutyric acid, and acetic acid, namely, of SCFA, were also decreased. Analysis of the results of culture of DLD-1 cells and WirDr cells in the presence of butyric acid, isobutyric acid, and acetic acid revealed that each of the substances showed significant cell growth-inhibitory activity, with the activity being the highest for butyric acid, followed by that for isobutyric acid and acetic acid. CONCLUSION These findings suggest that intake of both BB536-y and BB536-y with FOS prevents colorectal carcinogenesis.How to cite this article: Ohara T, Suzutani T. Intake of Bifidobacterium longum and Fructo-oligosaccharides prevents Colorectal Carcinogenesis. Euroasian J Hepato-Gastroenterol 2018;8(1):11-17.
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Affiliation(s)
- Tadashi Ohara
- Department of Intestinal Bioscience and Medicine, Fukushima Medical University, Fukushima City, Fukushima, Japan
| | - Tatsuo Suzutani
- Department of Microbiology, Fukushima Medical University, Fukushima City, Fukushima, Japan
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Hossain E, Ahammed F, K Saha S, A Foez S, A Rahim M, M Noor-E-Alam S, S Abdullah A. Screening of Esophageal Varices by Noninvasive Means in Chronic Liver Disease. Euroasian J Hepatogastroenterol 2018; 8:18-22. [PMID: 29963456 PMCID: PMC6024039 DOI: 10.5005/jp-journals-10018-1252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 02/22/2018] [Indexed: 11/23/2022] Open
Abstract
Introduction Noninvasive assessment of esophageal varices (EV) decreases the medical and financial burden related to screening and helps in the management of patients with chronic liver diseases (CLDs). In this study, our aim was to assess the utility of the platelet count/spleen diameter index for the noninvasive evaluation of EV. Materials and methods In this cross-sectional observational study, a total of 100 CLD patients underwent screening endoscopy for EV in Medicine and Gastroenterology Department, Sylhet MAG Osmani Medical College Hospital, Sylhet, Bangladesh. Platelet count/spleen diameter ratio was assessed in all patients and its diagnostic implication was calculated. Results Upper gastrointestinal endoscopy revealed that 45 (45.0%) patients had medium EV followed by 27 (27.0%) that had small EV and 19 (19.0%) patients had large EV. Receiver operator characteristic (ROC) curve was constructed using platelet count/spleen index, which gave a cut-off value of >905. The validity of platelet count/spleen index evaluation of CLD was: Sensitivity 92.3%, specificity 66.7%, accuracy 90.0%, positive predictive value (PPV) and negative predictive value (NPV) were 96.6 and 46.2% respectively. True positive was 84 cases, false positive 3 cases, false negative 7 cases, and true negative 6 cases. If we consider cut-off value as 909 in the evaluation of EV in CLD, then true positive was 85 cases, false positive 3 cases, false negative 6 cases, and true negative 6 cases. From this, by calculation, sensitivity was 93.4%, specificity 66.7%, accuracy 91%, PPV 96.6%, and NPV 50%. Conclusion The platelet count/spleen index may be proposed to be a safe and reliable mean of screening of EV in CLD patients; however, case-control study would be required to validate this. How to cite this article: Hossain E, Ahammed F, Saha SK, Foez SA, Rahim MA, Noor-e-Alam SM, Abdullah AS. Screening of Esophageal Varices by Noninvasive Means in Chronic Liver Disease. Euroasian J Hepato-Gastroenterol 2018;8(1):18-22.
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Affiliation(s)
- Enayet Hossain
- Department of Medicine, Sylhet MAG Osmani Medical College, Sylhet, Bangladesh
| | - Ferdaus Ahammed
- Department of Medicine, Sylhet MAG Osmani Medical College, Sylhet, Bangladesh
| | - Satyajit K Saha
- Department of Medicine, Sylhet MAG Osmani Medical College, Sylhet, Bangladesh
| | - Syed A Foez
- Department of Hepatology, Sylhet MAG Osmani Medical College, Sylhet, Bangladesh
| | - Mohammad A Rahim
- Department of Hepatology, Abdul Malek Ukil Medical College, Noakhali, Bangladesh
| | - Sheikh M Noor-E-Alam
- Department of Hepatology, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Abu S Abdullah
- Department of Medicine, Moulvibazar District Sadar Hospital, Moulvibazar, Bangladesh
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Kaur H, Das C, Mande SS. In Silico Analysis of Putrefaction Pathways in Bacteria and Its Implication in Colorectal Cancer. Front Microbiol 2017; 8:2166. [PMID: 29163445 PMCID: PMC5682003 DOI: 10.3389/fmicb.2017.02166] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/23/2017] [Indexed: 12/15/2022] Open
Abstract
Fermentation of undigested proteins in human gastrointestinal tract (gut) by the resident microbiota, a process called bacterial putrefaction, can sometimes disrupt the gut homeostasis. In this process, essential amino acids (e.g., histidine, tryptophan, etc.) that are required by the host may be utilized by the gut microbes. In addition, some of the products of putrefaction, like ammonia, putrescine, cresol, indole, phenol, etc., have been implicated in the disease pathogenesis of colorectal cancer (CRC). We have investigated bacterial putrefaction pathways that are known to be associated with such metabolites. Results of the comprehensive in silico analysis of the selected putrefaction pathways across bacterial genomes revealed presence of these pathways in limited bacterial groups. Majority of these bacteria are commonly found in human gut. These include Bacillus, Clostridium, Enterobacter, Escherichia, Fusobacterium, Salmonella, etc. Interestingly, while pathogens utilize almost all the analyzed pathways, commensals prefer putrescine and H2S production pathways for metabolizing the undigested proteins. Further, comparison of the putrefaction pathways in the gut microbiomes of healthy, carcinoma and adenoma datasets indicate higher abundances of putrefying bacteria in the carcinoma stage of CRC. The insights obtained from the present study indicate utilization of possible microbiome-based therapies to minimize the adverse effects of gut microbiome in enteric diseases.
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Affiliation(s)
- Harrisham Kaur
- Bio-Sciences R&D Division, TCS Research, Tata Consultancy Services Ltd., Pune, India
| | - Chandrani Das
- Bio-Sciences R&D Division, TCS Research, Tata Consultancy Services Ltd., Pune, India
| | - Sharmila S Mande
- Bio-Sciences R&D Division, TCS Research, Tata Consultancy Services Ltd., Pune, India
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Ma W, Yang J, Li P, Lu X, Cai J. Association between allergic conditions and colorectal cancer risk/mortality: a meta-analysis of prospective studies. Sci Rep 2017; 7:5589. [PMID: 28717199 PMCID: PMC5514030 DOI: 10.1038/s41598-017-04772-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/22/2017] [Indexed: 12/26/2022] Open
Abstract
We aimed to assess the association between allergic conditions and risk/mortality of colorectal cancer (CRC). A systematic literature search was conducted using Pubmed and Embase to identify relevant studies. Prospective studies assessing the association between allergic conditions and risk/mortality of CRC were included. Risk ratios (RRs) were pooled with either a fixed- or a random-effects model according to heterogeneity. A total of 515379 participants and 10345 CRC cases from 12 studies were included in the analysis of CRC risk, while four studies with 1484741 individuals and 30040 CRC deaths were included in the analysis of CRC mortality. The pooled RR for the association between allergic conditions and CRC risk was 0.88 (95% CI 0.83–0.92). The inverse association was observed both in colon cancer (pooled RR = 0.83, 95% CI 0.72–0.97) and rectal cancer (pooled RR = 0.83, 95% CI 0.74–0.93). Moreover, no gender difference was observed in the analysis of CRC risk (for males, pooled RR = 0.88, 95% CI 0.81–0.96; for females, pooled RR = 0.88, 95% CI 0.82–0.95). And allergic conditions were also found to be inversely associated with CRC mortality (pooled RR = 0.88, 95% CI 0.83–0.92). In conclusion, the current meta-analysis provides further evidence that allergic conditions were inversely associated with CRC risk and mortality.
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Affiliation(s)
- Wangqian Ma
- Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310009, China
| | - Jia Yang
- Department of Radiotherapy, Zhejiang Provincial People's Hospital, Hangzhou, 310014, China
| | - Peiwei Li
- Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310009, China
| | - Xinliang Lu
- Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310009, China.
| | - Jianting Cai
- Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University College of Medicine, Hangzhou, 310009, China.
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Chhim AS, Fassier P, Latino-Martel P, Druesne-Pecollo N, Zelek L, Duverger L, Hercberg S, Galan P, Deschasaux M, Touvier M. Prospective association between alcohol intake and hormone-dependent cancer risk: modulation by dietary fiber intake. Am J Clin Nutr 2015; 102:182-9. [PMID: 25994566 DOI: 10.3945/ajcn.114.098418] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 04/29/2015] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Alcohol intake is associated with increased circulating concentrations of sex hormones, which in turn may increase hormone-dependent cancer risk. This association may be modulated by dietary fiber intake, which has been shown to decrease steroid hormone bioavailability (decreased blood concentration and increased sex hormone-binding globulin concentration). However, this potential modulation has not been investigated in any prospective cohort. OBJECTIVES Our objectives were to study the relation between alcohol intake and the risk of hormone-dependent cancers (breast, prostate, ovarian, endometrial, and testicular) and to investigate whether dietary fiber intake modulated these associations. DESIGN This prospective observational analysis included 3771 women and 2771 men who participated in the Supplémentation en Vitamines et Minéraux Antioxydants study (1994-2007) and completed at least 6 valid 24-h dietary records during the first 2 y of follow-up. After a median follow-up of 12.1 y, 297 incident hormone-dependent cancer cases, including 158 breast and 123 prostate cancers, were diagnosed. Associations were tested via multivariate Cox proportional hazards models. RESULTS Overall, alcohol intake was directly associated with the risk of hormone-dependent cancers (tertile 3 vs. tertile 1: HR: 1.36; 95% CI: 1.00, 1.84; P-trend = 0.02) and breast cancer (HR: 1.70; 95% CI: 1.11, 2.61; P-trend = 0.04) but not prostate cancer (P-trend = 0.3). In stratified analyses (by sex-specific median of dietary fiber intake), alcohol intake was directly associated with hormone-dependent cancer (tertile 3 vs. tertile 1: HR: 1.76; 95% CI: 1.10, 2.82; P-trend = 0.002), breast cancer (HR: 2.53; 95% CI: 1.30, 4.95; P-trend = 0.02), and prostate cancer (HR: 1.37; 95% CI: 0.65, 2.89; P-trend = 0.02) risk among individuals with low dietary fiber intake but not among their counterparts with higher dietary fiber intake (P-trend = 0.9, 0.8, and 0.6, respectively). The P-interaction between alcohol and dietary fiber intake was statistically significant for prostate cancer (P = 0.01) but not for overall hormone-dependent (P = 0.2) or breast (P = 0.9) cancer. CONCLUSION In line with mechanistic hypotheses and experimental data, this prospective study suggested that dietary fiber intake might modulate the association between alcohol intake and risk of hormone-dependent cancer. This trial was registered at clinicaltrials.gov as NCT00272428.
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Affiliation(s)
- Anne-Sophie Chhim
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and
| | - Philippine Fassier
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and
| | - Paule Latino-Martel
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and
| | - Nathalie Druesne-Pecollo
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and
| | - Laurent Zelek
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and Oncology and
| | | | - Serge Hercberg
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and Public Health Departments, Avicenne Hospital, Bobigny, France
| | - Pilar Galan
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and
| | - Mélanie Deschasaux
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and
| | - Mathilde Touvier
- Sorbonne Paris Cité Epidemiology and Biostatistics Research Center (CRESS), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13, 7, and 5 Universities, Bobigny, France; and
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Tambe NA, Wilkens LR, Wan P, Stram DO, Gilliland F, Park SL, Cozen W, Martínez-Maza O, Le Marchand L, Henderson BE, Haiman CA. Atopic allergic conditions and colorectal cancer risk in the Multiethnic Cohort Study. Am J Epidemiol 2015; 181:889-97. [PMID: 25858290 DOI: 10.1093/aje/kwu361] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 12/08/2014] [Indexed: 01/10/2023] Open
Abstract
Studies have provided evidence of an inverse association between atopic allergic conditions (AACs) and invasive colorectal cancer (CRC) incidence and mortality in predominantly white populations. We examined the association between AACs (asthma, hay fever, or allergy) and CRC among white, African-American, Native Hawaiian, Japanese-American, and Latino men and women in the Multiethnic Cohort Study within Hawaii and Los Angeles, California. The prospective analysis included 4,834 incident CRC cases and 1,363 CRC-related deaths ascertained between 1993 and 2010. We examined associations by ethnicity, location, stage, and potential effect modification by CRC risk factors. AACs were associated with a reduced risk of CRC incidence among both men and women (relative risk (RR) = 0.86, 95% confidence interval (CI): 0.80, 0.92). The reduction in risk was noted in all populations except Latinos and was significant in whites (RR = 0.85, 95% CI: 0.73, 0.98), African Americans (RR = 0.81, 95% CI: 0.70, 0.95), Native Hawaiians (RR = 0.72, 95% CI: 0.54, 0.96), and Japanese Americans (RR = 0.87, 95% CI: 0.78, 0.98). Individuals with AACs also had a 20% reduction in CRC-related mortality (P = 0.001). These findings provide evidence for the potential protective role of the reactive immune system in colorectal cancer.
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Raskov H, Pommergaard HC, Burcharth J, Rosenberg J. Colorectal carcinogenesis-update and perspectives. World J Gastroenterol 2014; 20:18151-18164. [PMID: 25561783 PMCID: PMC4277953 DOI: 10.3748/wjg.v20.i48.18151] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 08/18/2014] [Accepted: 09/30/2014] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is a very common malignancy in the Western World and despite advances in surgery, chemotherapy and screening, it is still the second leading cause of cancer deaths in this part of the world. Numerous factors are found important in the development of CRC including colonocyte metbolism, high risk luminal environment, inflammation, as well as lifestyle factors such as diet, tobacco, and alchohol consumption. In recent years focus has turned towards the genetics and molecular biology of CRC and several interesting and promising correlations and pathways have been discovered. The major genetic pathways of CRC are the Chromosome Instability Pathway representing the pathway of sporadic CRC through the K-ras, APC, and P53 mutations, and the Microsatellite Instability Pathway representing the pathway of hereditary non-polyposis colon cancer through mutations in mismatch repair genes. To identify early cancers, screening programs have been initiated, and the leading strategy has been the use of faecal occult blood testing followed by colonoscopy in positive cases. Regarding the treatment of colorectal cancer, significant advances have been made in the recent decade. The molecular targets of CRC include at least two important cell surface receptors: the epidermal growth factor receptor and the vascular endothelial growth factor receptor. The genetic and molecular knowledge of CRC has widen the scientific and clinical perspectives of diagnosing and treatment. However, despite significant advances in the understanding and treatment of CRC, results from targeted therapy are still not convincing. Future studies will determine the role for this new treatment modality.
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Jarosz M, Sekuła W, Rychlik E. Trends in dietary patterns, alcohol intake, tobacco smoking, and colorectal cancer in Polish population in 1960-2008. BIOMED RESEARCH INTERNATIONAL 2013; 2013:183204. [PMID: 24369529 PMCID: PMC3863469 DOI: 10.1155/2013/183204] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 09/25/2013] [Accepted: 10/15/2013] [Indexed: 01/27/2023]
Abstract
The study examined the relationships between long-term trends in food consumption, alcohol intake, tobacco smoking, and colorectal cancer (CRC) incidence. Data on CRC incidence rates were derived from the National Cancer Registry, on food consumption from the national food balance sheets; data on alcohol and tobacco smoking reflected official statistics of the Central Statistical Office. It was shown that CRC incidence rates were increasing between 1960 and 1995, which could have been affected by adverse dietary patterns (growing consumption of edible fats, especially animal fats, sugar, red meat, and declining fibre and folate intake), high alcohol consumption, and frequent tobacco smoking noted until the end of the 1980s. Since 1990, the dietary pattern changed favourably (decrease in consumption of red meat, animal fats, and sugar, higher vitamin D intake, increase in vegetables and fruit quantities consumed, and decline in tobacco smoking). These changes could contribute to the stabilisation of CRC incidence among women seen after 1996 and a reduction in the rate of increase among men.
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Affiliation(s)
- Mirosław Jarosz
- Department of Nutrition and Dietetics with Clinic of Metabolic Diseases and Gastroenterology National Food and Nutrition Institute, Powsińska St. 61/63, 02-903 Warsaw, Poland
| | - Włodzimierz Sekuła
- Department of Nutrition and Dietetics with Clinic of Metabolic Diseases and Gastroenterology National Food and Nutrition Institute, Powsińska St. 61/63, 02-903 Warsaw, Poland
| | - Ewa Rychlik
- Department of Nutrition and Dietetics with Clinic of Metabolic Diseases and Gastroenterology National Food and Nutrition Institute, Powsińska St. 61/63, 02-903 Warsaw, Poland
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