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Zhang J, Wang P, Wang J, Wei X, Wang M. Unveiling intratumoral microbiota: An emerging force for colorectal cancer diagnosis and therapy. Pharmacol Res 2024; 203:107185. [PMID: 38615875 DOI: 10.1016/j.phrs.2024.107185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/01/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Microbes, including bacteria, viruses, fungi, and other eukaryotic organisms, are commonly present in multiple organs of the human body and contribute significantly to both physiological and pathological processes. Nowadays, the development of sequencing technology has revealed the presence and composition of the intratumoral microbiota, which includes Fusobacterium, Bifidobacteria, and Bacteroides, and has shed light on the significant involvement in the progression of colorectal cancer (CRC). Here, we summarized the current understanding of the intratumoral microbiota in CRC and outline the potential translational and clinical applications in the diagnosis, prevention, and treatment of CRC. We focused on reviewing the development of microbial therapies targeting the intratumoral microbiota to improve the efficacy and safety of chemotherapy and immunotherapy for CRC and to identify biomarkers for the diagnosis and prognosis of CRC. Finally, we emphasized the obstacles and potential solutions to translating the knowledge of the intratumoral microbiota into clinical practice.
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Affiliation(s)
- Jinjing Zhang
- Affiliated Cixi Hospital, Wenzhou Medical University, Zhejiang, China
| | - Penghui Wang
- Affiliated Cixi Hospital, Wenzhou Medical University, Zhejiang, China
| | - Jiafeng Wang
- Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Xiaojie Wei
- Affiliated Cixi Hospital, Wenzhou Medical University, Zhejiang, China.
| | - Mengchuan Wang
- Affiliated Cixi Hospital, Wenzhou Medical University, Zhejiang, China.
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2
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Chen Y, Yang C, Deng Z, Xiang T, Ni Q, Xu J, Sun D, Luo F. Gut microbially produced tryptophan metabolite melatonin ameliorates osteoporosis via modulating SCFA and TMAO metabolism. J Pineal Res 2024; 76:e12954. [PMID: 38618998 DOI: 10.1111/jpi.12954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 03/22/2024] [Accepted: 03/29/2024] [Indexed: 04/16/2024]
Abstract
Osteoporosis (OP) is a severe global health issue that has significant implications for productivity and human lifespan. Gut microbiota dysbiosis has been demonstrated to be closely associated with OP progression. Melatonin (MLT) is an important endogenous hormone that modulates bone metabolism, maintains bone homeostasis, and improves OP progression. Multiple studies indicated that MLT participates in the regulation of intestinal microbiota and gut barrier function. However, the promising effects of gut microbiota-derived MLT in OP remain unclear. Here, we found that OP resulted in intestinal tryptophan disorder and decreased the production of gut microbiota-derived MLT, while administration with MLT could mitigate OP-related clinical symptoms and reverse gut microbiota dysbiosis, including the diversity of intestinal microbiota, the relative abundance of many probiotics such as Allobaculum and Parasutterella, and metabolic function of intestinal flora such as amino acid metabolism, nucleotide metabolism, and energy metabolism. Notably, MLT significantly increased the production of short-chain fatty acids and decreased trimethylamine N-oxide-related metabolites. Importantly, MLT could modulate the dynamic balance of M1/M2 macrophages, reduce the serum levels of pro-inflammatory cytokines, and restore gut-barrier function. Taken together, our results highlighted the important roles of gut microbially derived MLT in OP progression via the "gut-bone" axis associated with SCFA metabolism, which may provide novel insight into the development of MLT as a promising drug for treating OP.
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Affiliation(s)
- Yueqi Chen
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing, China
- Department of Orthopedics, Chinese PLA 76th Army Corps Hospital, Beijing, Xining, China
| | - Chuan Yang
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing, China
- Department of Biomedical Materials Science, Third Military Medical University, Chongqing, China
| | - Zihan Deng
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Tingwen Xiang
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Qingrong Ni
- Department of Dermatology, Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Jianzhong Xu
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Dong Sun
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Fei Luo
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing, China
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Zhu C, Li S. Role of CRH in colitis and colitis-associated cancer: a combinative result of central and peripheral effects? Front Endocrinol (Lausanne) 2024; 15:1363748. [PMID: 38616821 PMCID: PMC11010637 DOI: 10.3389/fendo.2024.1363748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 03/19/2024] [Indexed: 04/16/2024] Open
Abstract
Corticotropin-releasing factor family peptides (CRF peptides) comprise corticotropin releasing hormone (CRH), urocortin (UCN1), UCN2 and UCN3. CRH is first isolated in the brain and later with UCNs found in many peripheral cells/tissues including the colon. CRH and UCNs function via the two types of receptors, CRF1 and CRF2, with CRH mainly acting on CRF1, UCN1 on both CRF1 &CRF2 and UCN2-3 on CRF2. Compiling evidence shows that CRH participates in inflammation and cancers via both indirect central effects related to stress response and direct peripheral influence. CRH, as a stress-response mediator, plays a significant central role in promoting the development of colitis involving colon motility, immunity and gut flora, while a few anti-colitis results of central CRH are also reported. Moreover, CRH is found to directly influence the motility and immune/inflammatory cells in the colon. Likewise, CRH is believed to be greatly related to tumorigenesis of many kinds of cancers including colon cancer via the central action during chronic stress while the peripheral effects on colitis-associated-colon cancer (CAC) are also proved. We and others observe that CRH/CRF1 plays a significant peripheral role in the development of colitis and CAC in that CRF1 deficiency dramatically suppresses the colon inflammation and CAC. However, up to date, there still exist not many relevant experimental data on this topic, and there seems to be no absolute clearcut between the central and direct peripheral effects of CRH in colitis and colon cancer. Taken together, CRH, as a critical factor in stress and immunity, may participate in colitis and CAC as a centrally active molecule; meanwhile, CRH has direct peripheral effects regulating the development of colitis and CAC, both of which will be summarized in this review.
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Affiliation(s)
| | - Shengnan Li
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
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Guo M, Fang L, Chen M, Shen J, Tan Z, He W. Dysfunction of cecal microbiota and CutC activity in mice mediating diarrhea with kidney-yang deficiency syndrome. Front Microbiol 2024; 15:1354823. [PMID: 38500584 PMCID: PMC10944907 DOI: 10.3389/fmicb.2024.1354823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/22/2024] [Indexed: 03/20/2024] Open
Abstract
Objective Previous studies have indicated that diarrhea with kidney-yang deficiency syndrome leads to a disorder of small intestine contents and mucosal microbiota. However, the relationship of TMA-lyase (CutC) activity and TMAO with diarrhea with kidney-yang deficiency syndrome remains unexplored. Therefore, this study explores the relationship between cecal microbiota and choline TMA-lyase (CutC) activity, as well as the correlation between trimethylamine oxide (TMAO), inflammatory index, and CutC activity. Method Twenty SPF-grade male KM mice were randomly divided into the normal group (CN) and the diarrhea model group (CD). Diarrhea mouse models were established by adenine combined with Folium sennae administration. CutC activity, TMAO, interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) levels were detected, and the cecal content microbiota was sequenced. Result After 14 days, diarrhea occurred in the CD group. Compared with the CN group, there was no significant change in the activity of CutC in the small intestine of the CD group, while the activity of CutC in the cecum was significantly increased, and the levels of TMAO, IL-6, and TNF-α showed a significant increase. The Chao1 index, Observed_species index, Shannon index, and Simpson index all exhibited a decreasing trend. The main changes at the bacterial genus level were Alistipes, Enterorhabdus, Desulfovibrio, Bacteroides, Candidatus_Saccharimonas, and [Ruminococcus]_torques_group. The results of LEfSe analysis, random forest analysis and ROC curve analysis revealed Paludicola, Blautia, Negativibacillus, Paraprevotella, Harryflintia, Candidatus_Soleaferrea, Anaerotruncus, Oscillibacter, Colidextribacter, [Ruminococcus]_torques_group, and Bacteroides as characteristic bacteria in the CD group. Correlation analysis showed a significant negative correlation between cecal CutC activity and Ligilactobacillus, and a significant positive correlation with Negativibacillus and Paludicola. The level of TMAO was significantly positively correlated with CutC activity and IL-6. Conclusion Diarrhea with kidney-yang deficiency syndrome significantly affects the physiological status, digestive enzyme activity, CutC activity, TMAO levels, and inflammatory response in mice. Additionally, there are changes in the composition and function of cecal microbiota, indicating an important impact of diarrhea with kidney-yang deficiency syndrome on the host intestinal microbiota balance. The occurrence of diarrhea with kidney-yang deficiency syndrome may be associated with dysbiosis of intestinal microbiota, increased CutC activity, elevated TMAO levels, and heightened inflammatory factor levels.
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Affiliation(s)
- Mingmin Guo
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Leyao Fang
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Meili Chen
- Changsha Hospital of Traditional Chinese Medicine, Changsha, China
| | - Junxi Shen
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Zhoujin Tan
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Wenzhi He
- School of Stomatology, Hunan University of Chinese Medicine, Changsha, China
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Abo-Hammam RH, Salah M, Shabayek S, Hanora A, Zakeer S, Khattab RH. Metagenomic analysis of fecal samples in colorectal cancer Egyptians patients post colectomy: A pilot study. AIMS Microbiol 2024; 10:148-160. [PMID: 38525041 PMCID: PMC10955169 DOI: 10.3934/microbiol.2024008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/17/2023] [Accepted: 12/29/2023] [Indexed: 03/26/2024] Open
Abstract
One of the most prevalent malignancies that significantly affects world health is colorectal cancer (CRC). While genetics are involved in a portion of CRC patients, most cases are sporadic. The microbiome composition could be a new source of tumor initiation and progression. This research was conducted to investigate the microbiota composition of CRC patients post colectomy at taxonomic and functional levels. Using a next-generation sequencing approach, using an Illumina Novaseq 6000, the fecal samples of 13 patients were analyzed and the obtained data was subjected to a bioinformatics analysis. The bacterial abundance and uniqueness varied in CRC patients alongside differences in bacterial counts between patients. Bacteroides fragilis, Bacteroides vulgatus, Escherichia coli, and Fusobacterium nucleatum were among the pro-cancerous microorganisms found. Concurrently, bacteria linked to CRC progression were detected that have been previously linked to metastasis and recurrence. At the same time, probiotic bacteria such as Bifidobacterium dentium, Bifidobacterium bifidum, and Akkermansia muciniphila increased in abundance after colectomies. Additionally, numerous pathways were deferentially enriched in CRC, which emerged from functional pathways based on bacterial shotgun data. CRC-specific microbiome signatures include an altered bacterial composition. Our research showed that microbial biomarkers could be more usefully employed to explore the link between gut microbiota and CRC using metagenomic techniques in the diagnosis, prognosis, and remission of CRC, thereby opening new avenues for CRC treatment.
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Affiliation(s)
- Rana H. Abo-Hammam
- Forensic toxicologist and narcotics expert, Ministry of Justice, Tanta, Egypt
| | - Mohammed Salah
- Department of Microbiology and Immunology, Faculty of pharmacy, Port-Said University, Port-Said, Egypt
| | - Sarah Shabayek
- Department of Microbiology and Immunology, Faculty of pharmacy, Suez Canal University, Ismailia, Egypt
| | - Amro Hanora
- Department of Microbiology and Immunology, Faculty of pharmacy, Suez Canal University, Ismailia, Egypt
| | - Samira Zakeer
- Department of Microbiology and Immunology, Faculty of pharmacy, Suez Canal University, Ismailia, Egypt
| | - Randa H. Khattab
- Department of Microbiology and Immunology, Al-Salam University, Tanta, Egypt
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Thisayakorn P, Thipakorn Y, Tantavisut S, Sirivichayakul S, Vojdani A, Maes M. Increased IgA-mediated responses to the gut paracellular pathway and blood-brain barrier proteins predict delirium due to hip fracture in older adults. Front Neurol 2024; 15:1294689. [PMID: 38379706 PMCID: PMC10876854 DOI: 10.3389/fneur.2024.1294689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/25/2024] [Indexed: 02/22/2024] Open
Abstract
Introduction Delirium is accompanied by immune response system activation, which may, in theory, cause a breakdown of the gut barrier and blood-brain barrier (BBB). Some results suggest that the BBB is compromised in delirium, but there is no data regarding the gut barrier. This study investigates whether delirium is associated with impaired BBB and gut barriers in elderly adults undergoing hip fracture surgery. Methods We recruited 59 older adults and measured peak Delirium Rating Scale (DRS) scores 2-3 days after surgery, and assessed plasma IgG/IgA levels (using ELISA techniques) for zonulin, occludin, claudin-6, β-catenin, actin (indicating damage to the gut paracellular pathway), claudin-5 and S100B (reflecting BBB damage), bacterial cytolethal distending toxin (CDT), LPS-binding protein (LBP), lipopolysaccharides (LPS), Porphyromonas gingivalis, and Helicobacter pylori. Results Results from univariate analyses showed that delirium is linked to increased IgA responses to all the self-epitopes and antigens listed above, except for LPS. Part of the variance (between 45-48.3%) in the peak DRS score measured 2-3 days post-surgery was explained by independent effects of IgA directed to LPS and LBP (or bacterial CDT), baseline DRS scores, and previous mild stroke. Increased IgA reactivity to the paracellular pathway and BBB proteins and bacterial antigens is significantly associated with the activation of M1 macrophage, T helper-1, and 17 cytokine profiles. Conclusion Heightened bacterial translocation, disruption of the tight and adherens junctions of the gut and BBB barriers, elevated CDT and LPS load in the bloodstream, and aberrations in cell-cell interactions may be risk factors for delirium.
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Affiliation(s)
- Paul Thisayakorn
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yanin Thipakorn
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Saran Tantavisut
- Department of Orthopedics, Hip Fracture Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sunee Sirivichayakul
- Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Aristo Vojdani
- Immunosciences Lab Inc., Los Angeles, CA, United States
- Cyrex Labs LLC, Phoenix, AZ, United States
| | - Michael Maes
- Sichuan Provincial Center for Mental Health, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Key Laboratory of Psychosomatic Medicine, Chinese Academy of Medical Sciences, Chengdu, China
- Department of Psychiatry, Medical University of Plovdiv, Plovdiv, Bulgaria
- Research Institute, Medical University of Plovdiv, Plovdiv, Bulgaria
- Kyung Hee University, Seoul, Republic of Korea
- Cognitive Impairment and Dementia Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Dai R, Kelly BN, Ike A, Berger D, Chan A, Drew DA, Ljungman D, Mutiibwa D, Ricciardi R, Tumusiime G, Cusack JC. The Impact of the Gut Microbiome, Environment, and Diet in Early-Onset Colorectal Cancer Development. Cancers (Basel) 2024; 16:676. [PMID: 38339427 PMCID: PMC10854951 DOI: 10.3390/cancers16030676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 01/26/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
Traditionally considered a disease common in the older population, colorectal cancer is increasing in incidence among younger demographics. Evidence suggests that populational- and generational-level shifts in the composition of the human gut microbiome may be tied to the recent trends in gastrointestinal carcinogenesis. This review provides an overview of current research and putative mechanisms behind the rising incidence of colorectal cancer in the younger population, with insight into future interventions that may prevent or reverse the rate of early-onset colorectal carcinoma.
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Affiliation(s)
- Rui Dai
- Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Harvard University, Boston, MA 02115, USA; (D.B.); (A.C.); (D.A.D.); (R.R.)
| | - Bridget N. Kelly
- Department of Surgery, Massachusetts General Hospital, Boston, MA 02114, USA (A.I.)
| | - Amarachi Ike
- Department of Surgery, Massachusetts General Hospital, Boston, MA 02114, USA (A.I.)
| | - David Berger
- Harvard Medical School, Harvard University, Boston, MA 02115, USA; (D.B.); (A.C.); (D.A.D.); (R.R.)
- Department of Surgery, Massachusetts General Hospital, Boston, MA 02114, USA (A.I.)
| | - Andrew Chan
- Harvard Medical School, Harvard University, Boston, MA 02115, USA; (D.B.); (A.C.); (D.A.D.); (R.R.)
- Department of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - David A. Drew
- Harvard Medical School, Harvard University, Boston, MA 02115, USA; (D.B.); (A.C.); (D.A.D.); (R.R.)
- Department of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - David Ljungman
- Sahlgrenska University Hospital, University of Gothenburg, 413 45 Gothenburg, Sweden;
| | - David Mutiibwa
- Department of Surgery, Mbarara University of Science and Technology, Mbarara P.O. Box 1410, Uganda;
| | - Rocco Ricciardi
- Harvard Medical School, Harvard University, Boston, MA 02115, USA; (D.B.); (A.C.); (D.A.D.); (R.R.)
- Department of Surgery, Massachusetts General Hospital, Boston, MA 02114, USA (A.I.)
| | - Gerald Tumusiime
- School of Medicine, Uganda Christian University, Mukono P.O. Box 4, Uganda;
| | - James C. Cusack
- Harvard Medical School, Harvard University, Boston, MA 02115, USA; (D.B.); (A.C.); (D.A.D.); (R.R.)
- Department of Surgery, Massachusetts General Hospital, Boston, MA 02114, USA (A.I.)
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8
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Peng D, Wang Y, Yao Y, Yang Z, Wu S, Zeng K, Hu X, Zhao Y. Long-chain polyunsaturated fatty acids influence colorectal cancer progression via the interactions between the intestinal microflora and the macrophages. Mol Cell Biochem 2024:10.1007/s11010-023-04904-y. [PMID: 38217838 DOI: 10.1007/s11010-023-04904-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/15/2023] [Indexed: 01/15/2024]
Abstract
The metabolism of long-chain polyunsaturated fatty acids (LCPUFAs) is closely associated with the risk and progression of colorectal cancer (CRC). This paper aims to investigate the role of LCPUFA in the crosstalk between intestinal microflora and macrophages, as well as the effects of these three parties on the progression of CRC. The metabolism and function of LCPUFA play important roles in regulating the composition of the human gut microflora and participating in the regulation of inflammation, ultimately affecting macrophage function and polarization, which is crucial in the tumor microenvironment. The effects of LCPUFA on cellular interactions between the two species can ultimately influence the progression of CRC. In this review, we explore the molecular mechanisms and clinical applications of LCPUFA in the interactions between intestinal microflora and intestinal macrophages, as well as its significance for CRC progression. Furthermore, we reveal the role of LCPUFA in the construction of the CRC microenvironment and explore the key nodes of the interactions between intestinal flora and intestinal macrophages in the environment. It provides potential targets for the metabolic diagnosis and treatment of CRC.
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Affiliation(s)
- Duo Peng
- Pathology Department of The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523713, China
- School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China
| | - Yan Wang
- Pathology Department of The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523713, China
- Microbiology and Immunology Department, Guangdong Medical University, Dongguan, 523808, China
| | - Yunhong Yao
- Pathology Department of The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523713, China
- Pathology Department, Guangdong Medical University, Dongguan, 523808, China
| | - Zisha Yang
- School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China
| | - Shuang Wu
- Pathology Department, Guangdong Medical University, Dongguan, 523808, China
| | - Kaijing Zeng
- Pathology Department, Guangdong Medical University, Dongguan, 523808, China
| | - Xinrong Hu
- Pathology Department of The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523713, China.
- Pathology Department, Guangdong Medical University, Dongguan, 523808, China.
| | - Yi Zhao
- Pathology Department of The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523713, China.
- Microbiology and Immunology Department, Guangdong Medical University, Dongguan, 523808, China.
- School of Medical Technology, Guangdong Medical University, Dongguan, 523808, China.
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Farhadipour M, Arnauts K, Clarysse M, Thijs T, Liszt K, Van der Schueren B, Ceulemans LJ, Deleus E, Lannoo M, Ferrante M, Depoortere I. SCFAs switch stem cell fate through HDAC inhibition to improve barrier integrity in 3D intestinal organoids from patients with obesity. iScience 2023; 26:108517. [PMID: 38125020 PMCID: PMC10730380 DOI: 10.1016/j.isci.2023.108517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/25/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Stem cells are a keystone of intestinal homeostasis, but their function could be shifted during energy imbalance or by crosstalk with microbial metabolites in the stem cell niche. This study reports the effect of obesity and microbiota-derived short-chain fatty acids (SCFAs) on intestinal stem cell (ISC) fate in human crypt-derived intestinal organoids (enteroids). ISC fate decision was impaired in obesity, resulting in smaller enteroids with less outward protruding crypts. Our key finding is that SCFAs switch ISC commitment to the absorptive enterocytes, resulting in reduced intestinal permeability in obese enteroids. Mechanistically, SCFAs act as HDAC inhibitors in stem cells to enhance Notch signaling, resulting in transcriptional activation of the Notch target gene HES1 to promote enterocyte differentiation. In summary, targeted reprogramming of ISC fate, using HDAC inhibitors, may represent a potential, robust therapeutic strategy to improve gut integrity in obesity.
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Affiliation(s)
- Mona Farhadipour
- Gut Peptide Research Lab, Translational Research for Gastrointestinal Disorders (TARGID), KU Leuven, 3000 Leuven, Belgium
| | - Kaline Arnauts
- Inflammatory Bowel Disease, Translational Research for Gastrointestinal Disorders (TARGID), KU Leuven, 3000 Leuven, Belgium
| | - Mathias Clarysse
- Leuven Intestinal Failure and Transplantation (LIFT) Center, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Theo Thijs
- Gut Peptide Research Lab, Translational Research for Gastrointestinal Disorders (TARGID), KU Leuven, 3000 Leuven, Belgium
| | - Kathrin Liszt
- Gut Peptide Research Lab, Translational Research for Gastrointestinal Disorders (TARGID), KU Leuven, 3000 Leuven, Belgium
| | | | - Laurens J. Ceulemans
- Leuven Intestinal Failure and Transplantation (LIFT) Center, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Ellen Deleus
- Department of Abdominal Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Matthias Lannoo
- Department of Abdominal Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Marc Ferrante
- Inflammatory Bowel Disease, Translational Research for Gastrointestinal Disorders (TARGID), KU Leuven, 3000 Leuven, Belgium
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Inge Depoortere
- Gut Peptide Research Lab, Translational Research for Gastrointestinal Disorders (TARGID), KU Leuven, 3000 Leuven, Belgium
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10
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Sasso E, Baticic L, Sotosek V. Postprandial Dysmetabolism and Its Medical Implications. Life (Basel) 2023; 13:2317. [PMID: 38137918 PMCID: PMC10744591 DOI: 10.3390/life13122317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/01/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
An unbalanced diet increases the risk of developing a variety of chronic diseases and cancers, leading to higher morbidity and mortality rates worldwide. Low-grade systemic chronic inflammation mediated by the activation of the innate immune system is common to all these pathologies. Inflammation is a biological response of the body and a normal part of host defense to combat the effects of bacteria, viruses, toxins and macronutrients. However, when the innate immune system is constantly activated, it can promote the development of low-grade systemic chronic inflammation, which could play an important role in the development of chronic diseases and cancer. Since most chronic inflammatory diseases are associated with diet, a balanced healthy diet high in anti-inflammatory food components could prevent chronic diseases and cancer. The cells of the body's immune system produce chemokines and cytokines which can have pro-inflammatory and tumor-promoting as well as anti-inflammatory and tumor-fighting functions. A challenge in the future will be to assess whether polymorphisms in immune-related genes may play a role in promoting pro-inflammatory activity. Thanks to this duality, future research on immune regulation could focus on how innate immune cells can be modified to convert a pro-inflammatory and tumor-friendly microenvironment into an anti-inflammatory and anti-tumor one. This review describes inflammatory responses mediated by the innate immune system in various diseases such as hyperglycemia and/or hyperlipemia, obesity, type II diabetes, cardiovascular disease and cancer.
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Affiliation(s)
- Emanuel Sasso
- Faculty of Medicine, University of Rijeka, Brace Branchetta 20, 51000 Rijeka, Croatia
| | - Lara Baticic
- Department of Medical Chemistry, Biochemistry and Clinical Chemistry, Faculty of Medicine, University of Rijeka, Brace Branchetta 20, 51000 Rijeka, Croatia
| | - Vlatka Sotosek
- Department of Anesthesiology, Reanimatology, Emergency and Intensive Care Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia;
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11
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Widjaja F, Rietjens IMCM. From-Toilet-to-Freezer: A Review on Requirements for an Automatic Protocol to Collect and Store Human Fecal Samples for Research Purposes. Biomedicines 2023; 11:2658. [PMID: 37893032 PMCID: PMC10603957 DOI: 10.3390/biomedicines11102658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/22/2023] [Accepted: 09/24/2023] [Indexed: 10/29/2023] Open
Abstract
The composition, viability and metabolic functionality of intestinal microbiota play an important role in human health and disease. Studies on intestinal microbiota are often based on fecal samples, because these can be sampled in a non-invasive way, although procedures for sampling, processing and storage vary. This review presents factors to consider when developing an automated protocol for sampling, processing and storing fecal samples: donor inclusion criteria, urine-feces separation in smart toilets, homogenization, aliquoting, usage or type of buffer to dissolve and store fecal material, temperature and time for processing and storage and quality control. The lack of standardization and low-throughput of state-of-the-art fecal collection procedures promote a more automated protocol. Based on this review, an automated protocol is proposed. Fecal samples should be collected and immediately processed under anaerobic conditions at either room temperature (RT) for a maximum of 4 h or at 4 °C for no more than 24 h. Upon homogenization, preferably in the absence of added solvent to allow addition of a buffer of choice at a later stage, aliquots obtained should be stored at either -20 °C for up to a few months or -80 °C for a longer period-up to 2 years. Protocols for quality control should characterize microbial composition and viability as well as metabolic functionality.
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Affiliation(s)
- Frances Widjaja
- Division of Toxicology, Wageningen University & Research, 6708 WE Wageningen, The Netherlands;
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12
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Schiffman SS, Scholl EH, Furey TS, Nagle HT. Toxicological and pharmacokinetic properties of sucralose-6-acetate and its parent sucralose: in vitro screening assays. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2023; 26:307-341. [PMID: 37246822 DOI: 10.1080/10937404.2023.2213903] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The purpose of this study was to determine the toxicological and pharmacokinetic properties of sucralose-6-acetate, a structural analog of the artificial sweetener sucralose. Sucralose-6-acetate is an intermediate and impurity in the manufacture of sucralose, and recent commercial sucralose samples were found to contain up to 0.67% sucralose-6-acetate. Studies in a rodent model found that sucralose-6-acetate is also present in fecal samples with levels up to 10% relative to sucralose which suggest that sucralose is also acetylated in the intestines. A MultiFlow® assay, a high-throughput genotoxicity screening tool, and a micronucleus (MN) test that detects cytogenetic damage both indicated that sucralose-6-acetate is genotoxic. The mechanism of action was classified as clastogenic (produces DNA strand breaks) using the MultiFlow® assay. The amount of sucralose-6-acetate in a single daily sucralose-sweetened drink might far exceed the threshold of toxicological concern for genotoxicity (TTCgenotox) of 0.15 µg/person/day. The RepliGut® System was employed to expose human intestinal epithelium to sucralose-6-acetate and sucralose, and an RNA-seq analysis was performed to determine gene expression induced by these exposures. Sucralose-6-acetate significantly increased the expression of genes associated with inflammation, oxidative stress, and cancer with greatest expression for the metallothionein 1 G gene (MT1G). Measurements of transepithelial electrical resistance (TEER) and permeability in human transverse colon epithelium indicated that sucralose-6-acetate and sucralose both impaired intestinal barrier integrity. Sucralose-6-acetate also inhibited two members of the cytochrome P450 family (CYP1A2 and CYP2C19). Overall, the toxicological and pharmacokinetic findings for sucralose-6-acetate raise significant health concerns regarding the safety and regulatory status of sucralose itself.
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Affiliation(s)
- Susan S Schiffman
- Joint Department of Biomedical Engineering, University of North Carolina/North Carolina State University, Raleigh, NC, USA
| | | | - Terrence S Furey
- Departments of Genetics and Biology, University of North Carolina, Chapel Hill, NC, USA
| | - H Troy Nagle
- Joint Department of Biomedical Engineering, University of North Carolina/North Carolina State University, Raleigh, NC, USA
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, USA
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13
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Zhao M, Chu J, Feng S, Guo C, Xue B, He K, Li L. Immunological mechanisms of inflammatory diseases caused by gut microbiota dysbiosis: A review. Biomed Pharmacother 2023; 164:114985. [PMID: 37311282 DOI: 10.1016/j.biopha.2023.114985] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/15/2023] Open
Abstract
The gut microbiota is indispensable for maintaining host health by enhancing the host's digestive capacity, safeguarding the intestinal epithelial barrier, and preventing pathogen invasion. Additionally, the gut microbiota exhibits a bidirectional interaction with the host immune system and promotes the immune system of the host to mature. Dysbiosis of the gut microbiota, primarily caused by factors such as host genetic susceptibility, age, BMI, diet, and drug abuse, is a significant contributor to inflammatory diseases. However, the mechanisms underlying inflammatory diseases resulting from gut microbiota dysbiosis lack systematic categorization. In this study, we summarize the normal physiological functions of symbiotic microbiota in a healthy state and demonstrate that when dysbiosis occurs due to various external factors, the normal physiological functions of the gut microbiota are lost, leading to pathological damage to the intestinal lining, metabolic disorders, and intestinal barrier damage. This, in turn, triggers immune system disorders and eventually causes inflammatory diseases in various systems. These discoveries provide fresh perspectives on how to diagnose and treat inflammatory diseases. However, the unrecognized variables that might affect the link between inflammatory illnesses and gut microbiota, need further studies and extensive basic and clinical research will still be required to investigate this relationship in the future.
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Affiliation(s)
- Min'an Zhao
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China; School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Jiayi Chu
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Shiyao Feng
- School of Public Health, Jilin University, Changchun, Jilin 130021, China
| | - Chuanhao Guo
- The Second School of Clinical Medicine of Jilin University, Changchun, Jilin 130041, China
| | - Baigong Xue
- College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China.
| | - Kan He
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China.
| | - Lisha Li
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, China.
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14
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Campaniello D, Bevilacqua A, Speranza B, Racioppo A, Sinigaglia M, Corbo MR. A narrative review on the use of probiotics in several diseases. Evidence and perspectives. Front Nutr 2023; 10:1209238. [PMID: 37497058 PMCID: PMC10368401 DOI: 10.3389/fnut.2023.1209238] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/26/2023] [Indexed: 07/28/2023] Open
Abstract
Gut microbiota is a complex ecosystem, strictly linked to health and disease, as a balanced composition (referred as eubiosis) is necessary for several physiological functions, while an unbalanced composition (dysbiosis) is often associated to pathological conditions and/or diseases. An altered microbiota could be positively affected and partially restored through probiotic supplementation, among others. This review addresses the effects of probiotics in several conditions, used as case-studies (colorectal cancer, neuro-psychiatric diseases, intestinal diseases, obesity, diabetes, metabolic syndrome, immune system, and musculoskeletal system disorders) by pointing out the clinical outcomes, the mode of action, mainly related to the production of short chain fatty acids (SCFA), the impact of probiotic dose and mode of supplementation, as well as trying to highlight a hit of the most used genera.
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15
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Kang X, Ng SK, Liu C, Lin Y, Zhou Y, Kwong TNY, Ni Y, Lam TYT, Wu WKK, Wei H, Sung JJY, Yu J, Wong SH. Altered gut microbiota of obesity subjects promotes colorectal carcinogenesis in mice. EBioMedicine 2023; 93:104670. [PMID: 37343363 DOI: 10.1016/j.ebiom.2023.104670] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 05/26/2023] [Accepted: 06/06/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Obesity is a risk factor for colorectal cancer (CRC). The role of gut microbiota in mediating the cancer-promoting effect of obesity is unknown. METHODS Azoxymethane (AOM)-treated, ApcMin/+ and germ-free mice were gavaged with feces from obese individuals and control subjects respectively. The colonic tumor load and number were recorded at the endpoint in two carcinogenic models. The gut microbiota composition and colonic transcriptome were assessed by metagenomic sequencing and RNA sequencing, respectively. The anticancer effects of bacteria depleted in fecal samples of obese individuals were validated. FINDINGS Conventional AOM-treated and ApcMin/+ mice receiving feces from obese individuals showed significantly increased colon tumor formation compared with those receiving feces from control subjects. AOM-treated mice receiving feces from obese individuals showed impaired intestinal barrier function and significant upregulation of pro-inflammatory cytokines and activation of oncogenic Wnt signaling pathway. Consistently, transferring feces from obese individuals to germ-free mice led to increased colonic cell proliferation, intestinal barrier function impairment, and induction of oncogenic and proinflammatory gene expression. Moreover, germ-free mice transplanted with feces from obese human donors had increased abundance of potential pathobiont Alistipes finegoldii, and reduced abundance of commensals Bacteroides vulgatus and Akkermansia muciniphila compared with those receiving feces from human donors with normal body mass index (BMI). Validation experiments showed that B. vulgatus and A. muciniphila demonstrated anti-proliferative effects in CRC, while A. finegoldii promoted CRC tumor growth. INTERPRETATION Our results supported the role of obesity-associated microbiota in colorectal carcinogenesis and identified putative bacterial candidates that may mediate its mechanisms. Microbiota modulation in obese individuals may provide new approaches to prevent or treat obesity-related cancers including CRC. FUNDING This work was funded by National Key Research and Development Program of China (2020YFA0509200/2020YFA0509203), National Natural Science Foundation of China (81922082), RGC Theme-based Research Scheme Hong Kong (T21-705/20-N), RGC Research Impact Fund Hong Kong (R4632-21F), RGC-CRF Hong Kong (C4039-19GF and C7065-18GF), RGC-GRF Hong Kong (14110819, 14111621), and NTU Start-Up Grant (021337-00001).
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Affiliation(s)
- Xing Kang
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Siu-Kin Ng
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Changan Liu
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yufeng Lin
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yunfei Zhou
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Thomas N Y Kwong
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yunbi Ni
- Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Thomas Y T Lam
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - William K K Wu
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Hong Wei
- Department of Laboratory Animal Science, College of Basic Medical Sciences, Third Military Medical University, Chongqing, China; Department of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Joseph J Y Sung
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
| | - Jun Yu
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.
| | - Sunny H Wong
- Department of Medicine and Therapeutics, Faculty of Medicine, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.
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16
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Mignini I, Ainora ME, Di Francesco S, Galasso L, Gasbarrini A, Zocco MA. Tumorigenesis in Inflammatory Bowel Disease: Microbiota-Environment Interconnections. Cancers (Basel) 2023; 15:3200. [PMID: 37370812 DOI: 10.3390/cancers15123200] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Colo-rectal cancer (CRC) is undoubtedly one of the most severe complications of inflammatory bowel diseases (IBD). While sporadic CRC develops from a typical adenoma-carcinoma sequence, IBD-related CRC follows different and less understood pathways and its pathophysiological mechanisms were not completely elucidated. In contrast to chronic inflammation, which is nowadays a well-recognised drive towards neoplastic transformation in IBD, only recently was gut microbiota demonstrated to interfere with both inflammation processes and immune-mediated anticancer surveillance. Moreover, the role of microbiota appears particularly complex and intriguing when also considering its multifaceted interactions with multiple environmental stimuli, notably chronic pathologies such as diabetes and obesity, lifestyle (diet, smoking) and vitamin intake. In this review, we presented a comprehensive overview on current evidence of the influence of gut microbiota on IBD-related CRC, in particular its mutual interconnections with the environment.
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Affiliation(s)
- Irene Mignini
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli, 8, 00168 Rome, Italy
| | - Maria Elena Ainora
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli, 8, 00168 Rome, Italy
| | - Silvino Di Francesco
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli, 8, 00168 Rome, Italy
| | - Linda Galasso
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli, 8, 00168 Rome, Italy
| | - Antonio Gasbarrini
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli, 8, 00168 Rome, Italy
| | - Maria Assunta Zocco
- CEMAD Digestive Diseases Center, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Largo A. Gemelli, 8, 00168 Rome, Italy
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Huang Y, Ying N, Zhao Q, Chen J, Teow SY, Dong W, Lin M, Jiang L, Zheng H. Amelioration of Obesity-Related Disorders in High-Fat Diet-Fed Mice following Fecal Microbiota Transplantation from Inulin-Dosed Mice. Molecules 2023; 28:molecules28103997. [PMID: 37241738 DOI: 10.3390/molecules28103997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
The role of inulin in alleviating obesity-related disorders has been documented; yet, its underlying mechanisms still need to be further investigated. This study attempted to elucidate the causative link between the gut microbiota and the beneficial effect of inulin on obesity-related disorders via transferring the fecal microbiota from inulin-dosed mice to high-fat diet (HFD)-induced obese recipient mice. The results show that inulin supplementation can decrease body weight, fat accumulation, and systemic inflammation and can also enhance glucose metabolism in HFD-induced obese mice. Treatment with inulin reshaped the structure and composition of the gut microbiota in HFD-induced obese mice, as characterized by increases in the relative abundances of Bifidobacterium and Muribaculum and decreases in unidentified_Lachnospiraceae and Lachnoclostridium. In addition, we found that these favorable effects of inulin could be partially transferable by fecal microbiota transplantation, and Bifidobacterium and Muribaculum might be the key bacterial genera. Therefore, our results suggest that inulin ameliorates obesity-related disorders by targeting the gut microbiota.
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Affiliation(s)
- Yinli Huang
- Department of Endocrinology, Pingyang Affiliated Hospital of Wenzhou Medical University, Wenzhou 325400, China
| | - Na Ying
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Qihui Zhao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Junli Chen
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Sin-Yeang Teow
- College of Science and Technology, Wenzhou-Kean University, Wenzhou 325060, China
| | - Wei Dong
- Department of Endocrinology, Pingyang Affiliated Hospital of Wenzhou Medical University, Wenzhou 325400, China
| | - Minjie Lin
- Department of Endocrinology, Pingyang Affiliated Hospital of Wenzhou Medical University, Wenzhou 325400, China
| | - Lingling Jiang
- College of Science and Technology, Wenzhou-Kean University, Wenzhou 325060, China
- Wenzhou Municipal Key Laboratory for Applied Biomedical and Biopharmaceutical Informatics, Wenzhou-Kean University, Wenzhou 325060, China
| | - Hong Zheng
- Department of Endocrinology, Pingyang Affiliated Hospital of Wenzhou Medical University, Wenzhou 325400, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
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18
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Duizer C, de Zoete MR. The Role of Microbiota-Derived Metabolites in Colorectal Cancer. Int J Mol Sci 2023; 24:8024. [PMID: 37175726 PMCID: PMC10178193 DOI: 10.3390/ijms24098024] [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: 03/19/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
The impact of bacterial members of the microbiota on the development of colorectal cancer (CRC) has become clear in recent years. However, exactly how bacteria contribute to the development of cancer is often still up for debate. The impact of bacteria-derived metabolites, which can influence the development of CRC either in a promoting or inhibiting manner, is undeniable. Here, we discuss the effects of the most well-studied bacteria-derived metabolites associated with CRC, including secondary bile acids, short-chain fatty acids, trimethylamine-N-oxide and indoles. We show that the effects of individual metabolites on CRC development are often nuanced and dose- and location-dependent. In the coming years, the array of metabolites involved in CRC development will undoubtedly increase further, which will emphasize the need to focus on causation and mechanisms and the clearly defined roles of bacterial species within the microbiota.
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Affiliation(s)
| | - Marcel R. de Zoete
- Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
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19
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Wang X, Hou L, Cui M, Liu J, Wang M, Xie J. The traditional Chinese medicine and non-small cell lung cancer: from a gut microbiome perspective. Front Cell Infect Microbiol 2023; 13:1151557. [PMID: 37180438 PMCID: PMC10167031 DOI: 10.3389/fcimb.2023.1151557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/29/2023] [Indexed: 05/16/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is one of the most serious diseases affecting human health today, and current research is focusing on gut flora. There is a correlation between intestinal flora imbalance and lung cancer, but the specific mechanism is not clear. Based on the "lung and large intestine being interior-exteriorly related" and the "lung-intestinal axis" theory. Here, based on the theoretical comparisons of Chinese and western medicine, we summarized the regulation of intestinal flora in NSCLC by active ingredients of traditional Chinese medicine and Chinese herbal compounds and their intervention effects, which is conducive to providing new strategies and ideas for clinical prevention and treatment of NSCLC.
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Affiliation(s)
- Xuelin Wang
- School of Food Science and Engineering (School of Biological and Pharmaceutical Sciences), Shaanxi University of Science & Technology, Xi an, China
| | - Liming Hou
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi an, China
| | - Meng Cui
- School of Food Science and Engineering (School of Biological and Pharmaceutical Sciences), Shaanxi University of Science & Technology, Xi an, China
| | - Junnan Liu
- School of Food Science and Engineering (School of Biological and Pharmaceutical Sciences), Shaanxi University of Science & Technology, Xi an, China
| | - Mengzhou Wang
- School of Food Science and Engineering (School of Biological and Pharmaceutical Sciences), Shaanxi University of Science & Technology, Xi an, China
| | - Jianwu Xie
- School of Food Science and Engineering (School of Biological and Pharmaceutical Sciences), Shaanxi University of Science & Technology, Xi an, China
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20
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Veres-Székely A, Szász C, Pap D, Szebeni B, Bokrossy P, Vannay Á. Zonulin as a Potential Therapeutic Target in Microbiota-Gut-Brain Axis Disorders: Encouraging Results and Emerging Questions. Int J Mol Sci 2023; 24:ijms24087548. [PMID: 37108711 PMCID: PMC10139156 DOI: 10.3390/ijms24087548] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/05/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
The relationship between dysbiosis and central nervous diseases has been proved in the last 10 years. Microbial alterations cause increased intestinal permeability, and the penetration of bacterial fragment and toxins induces local and systemic inflammatory processes, affecting distant organs, including the brain. Therefore, the integrity of the intestinal epithelial barrier plays a central role in the microbiota-gut-brain axis. In this review, we discuss recent findings on zonulin, an important tight junction regulator of intestinal epithelial cells, which is assumed to play a key role in maintaining of the blood-brain barrier function. In addition to focusing on the effect of microbiome on intestinal zonulin release, we also summarize potential pharmaceutical approaches to modulate zonulin-associated pathways with larazotide acetate and other zonulin receptor agonists or antagonists. The present review also addresses the emerging issues, including the use of misleading nomenclature or the unsolved questions about the exact protein sequence of zonulin.
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Affiliation(s)
- Apor Veres-Székely
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary
- ELKH-SE Pediatrics and Nephrology Research Group, 1052 Budapest, Hungary
| | - Csenge Szász
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary
| | - Domonkos Pap
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary
- ELKH-SE Pediatrics and Nephrology Research Group, 1052 Budapest, Hungary
| | - Beáta Szebeni
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary
- ELKH-SE Pediatrics and Nephrology Research Group, 1052 Budapest, Hungary
| | - Péter Bokrossy
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary
| | - Ádám Vannay
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary
- ELKH-SE Pediatrics and Nephrology Research Group, 1052 Budapest, Hungary
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21
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Singh S, Sharma P, Sarma DK, Kumawat M, Tiwari R, Verma V, Nagpal R, Kumar M. Implication of Obesity and Gut Microbiome Dysbiosis in the Etiology of Colorectal Cancer. Cancers (Basel) 2023; 15:1913. [PMID: 36980799 PMCID: PMC10047102 DOI: 10.3390/cancers15061913] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/12/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
The complexity and variety of gut microbiomes within and among individuals have been extensively studied in recent years in connection to human health and diseases. Our growing understanding of the bidirectional communication between metabolic diseases and the gut microbiome has also highlighted the significance of gut microbiome dysbiosis in the genesis and development of obesity-related cancers. Therefore, it is crucial to comprehend the possible role of the gut microbiota in the crosstalk between obesity and colorectal cancer (CRC). Through the induction of gut microbial dysbiosis, gut epithelial barrier impairment, metabolomic dysregulation, chronic inflammation, or dysregulation in energy harvesting, obesity may promote the development of colorectal tumors. It is well known that strategies for cancer prevention and treatment are most effective when combined with a healthy diet, physical activity, and active lifestyle choices. Recent studies also suggest that an improved understanding of the complex linkages between the gut microbiome and various cancers as well as metabolic diseases can potentially improve cancer treatments and overall outcomes. In this context, we herein review and summarize the clinical and experimental evidence supporting the functional role of the gut microbiome in the pathogenesis and progression of CRC concerning obesity and its metabolic correlates, which may pave the way for the development of novel prognostic tools for CRC prevention. Therapeutic approaches for restoring the microbiome homeostasis in conjunction with cancer treatments are also discussed herein.
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Affiliation(s)
- Samradhi Singh
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Poonam Sharma
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Devojit Kumar Sarma
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Manoj Kumawat
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Rajnarayan Tiwari
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Vinod Verma
- Stem Cell Research Centre, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow 226014, India
| | - Ravinder Nagpal
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32302, USA
| | - Manoj Kumar
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
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22
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Khodabakhshi A, Monfared V, Arabpour Z, Vahid F, Hasani M. Association between Levels of Trimethylamine N-Oxide and Cancer: A Systematic Review and Meta-Analysis. Nutr Cancer 2023; 75:402-414. [PMID: 36217110 DOI: 10.1080/01635581.2022.2129080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Cancer is the second leading cause of death in the world. Reports on the effect of Trimethylamine-N-oxide (TAMO), a small amine oxide generated by gut microbial metabolism of choline, betaine, and carnitine, on cancer are inconsistent. Therefore, this systematic review and meta-analysis summarize the effect of TAMO on cancer incidence. A systematic search was conducted in PubMed, Scopus, Web of Science, and Embase. Data were pooled using the random-effects method and were expressed as weighted mean difference (WMD) and 95% confidence intervals (CI). The pooled results of 16 studies, including 5930 participants, showed that the association between TMAO levels and cancer incidence is insignificant (Odds Ratio: 0.97, 95% CI: (0.64, 1.46), P-value = 0.871). Subgroup analysis showed that urinary TMAO levels were negatively associated with cancer incidence; in contrast, a direct and positive association was observed between serum TMAO levels and cancer incidence. However, "gender" and the "TMAO measuring method" were the potential sources of discrepancies. Meta-regression analysis did not reveal any significant association between duration of studies, age, female ratio, subjects-control, and subjects-case. The present study demonstrates that serum TAMO levels were insignificantly associated with cancer incidence.
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Affiliation(s)
- Adeleh Khodabakhshi
- Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran.,Physiology Research center, Institute of Neuropharmacology, and Department of Nutrition, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Vahid Monfared
- Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran
| | - Zahra Arabpour
- Department of Nutrition, School of Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Farhad Vahid
- Nutrition and Health Research Group, Department of Precision Health, Luxembourg Institute of Health, Strassen, Luxembourg
| | - Motahareh Hasani
- Department of Nutrition, School of Health, Golestan University of Medical Sciences, Gorgan, Iran
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23
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Cassotta M, Cianciosi D, De Giuseppe R, Navarro-Hortal MD, Armas Diaz Y, Forbes-Hernández TY, Pifarre KT, Pascual Barrera AE, Grosso G, Xiao J, Battino M, Giampieri F. Possible role of nutrition in the prevention of inflammatory bowel disease-related colorectal cancer: A focus on human studies. Nutrition 2023; 110:111980. [PMID: 36965240 DOI: 10.1016/j.nut.2023.111980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 01/10/2023] [Accepted: 01/22/2023] [Indexed: 02/05/2023]
Abstract
Patients with inflammatory bowel disease (IBD) are at substantially high risk for colorectal cancer (CRC). IBD-associated CRC accounts for roughly 10% to 15% of the annual mortality in patients with IBD. IBD-related CRC also affects younger patients compared with sporadic CRC, with a 5-y survival rate of 50%. Regardless of medical therapies, the persistent inflammatory state characterizing IBD raises the risk for precancerous changes and CRC, with additional input from several elements, including genetic and environmental risk factors, IBD-associated comorbidities, intestinal barrier dysfunction, and gut microbiota modifications. It is well known that nutritional habits and dietary bioactive compounds can influence IBD-associated inflammation, microbiome abundance and composition, oxidative stress balance, and gut permeability. Additionally, in recent years, results from broad epidemiologic and experimental studies have associated certain foods or nutritional patterns with the risk for colorectal neoplasia. The present study aimed to review the possible role of nutrition in preventing IBD-related CRC, focusing specifically on human studies. It emerges that nutritional interventions based on healthy, nutrient-dense dietary patterns characterized by a high intake of fiber, vegetables, fruit, ω-3 polyunsaturated fatty acids, and a low amount of animal proteins, processed foods, and alcohol, combined with probiotic supplementation have the potential of reducing IBD-activity and preventing the risk of IBD-related CRC through different mechanisms, suggesting that targeted nutritional interventions may represent a novel promising approach for the prevention and management of IBD-associated CRC.
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Affiliation(s)
- Manuela Cassotta
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander, Spain
| | - Danila Cianciosi
- Department of Clinical Sciences, Faculty of Medicine, Polytechnic University of Marche, Ancona, Italy
| | - Rachele De Giuseppe
- Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy; NBFC, National Biodiversity Future Center, Palermo 90133, Italy
| | - Maria Dolores Navarro-Hortal
- Biomedical Research Centre, Institute of Nutrition and Food Technology "José Mataix Verdú," Department of Physiology, Faculty of Pharmacy, University of Granada, Armilla, Granada, Spain
| | - Yasmany Armas Diaz
- Department of Clinical Sciences, Faculty of Medicine, Polytechnic University of Marche, Ancona, Italy
| | - Tamara Yuliett Forbes-Hernández
- Biomedical Research Centre, Institute of Nutrition and Food Technology "José Mataix Verdú," Department of Physiology, Faculty of Pharmacy, University of Granada, Armilla, Granada, Spain
| | - Kilian Tutusaus Pifarre
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander, Spain; Project Department, Universidade Internacional do Cuanza, Cuito, Bié, Angola
| | - Alina Eugenia Pascual Barrera
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander, Spain; Department of Project Management, Universidad Internacional Iberoamericana, Campeche, Mexico
| | - Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, Universidade de Vigo - Ourense Campus, Ourense, Spain
| | - Maurizio Battino
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander, Spain; Department of Clinical Sciences, Faculty of Medicine, Polytechnic University of Marche, Ancona, Italy; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu University, Zhenjiang, China
| | - Francesca Giampieri
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander, Spain.
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24
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Tacconi E, Palma G, De Biase D, Luciano A, Barbieri M, de Nigris F, Bruzzese F. Microbiota Effect on Trimethylamine N-Oxide Production: From Cancer to Fitness-A Practical Preventing Recommendation and Therapies. Nutrients 2023; 15:nu15030563. [PMID: 36771270 PMCID: PMC9920414 DOI: 10.3390/nu15030563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/24/2023] Open
Abstract
Trimethylamine N-oxide (TMAO) is a microbial metabolite derived from nutrients, such as choline, L-carnitine, ergothioneine and betaine. Recently, it has come under the spotlight for its close interactions with gut microbiota and implications for gastrointestinal cancers, cardiovascular disease, and systemic inflammation. The culprits in the origin of these pathologies may be food sources, in particular, high fat meat, offal, egg yolk, whole dairy products, and fatty fish, but intercalated between these food sources and the production of pro-inflammatory TMAO, the composition of gut microbiota plays an important role in modulating this process. The aim of this review is to explain how the gut microbiota interacts with the conversion of specific compounds into TMA and its oxidation to TMAO. We will first cover the correlation between TMAO and various pathologies such as dysbiosis, then focus on cardiovascular disease, with a particular emphasis on pro-atherogenic factors, and then on systemic inflammation and gastrointestinal cancers. Finally, we will discuss primary prevention and therapies that are or may become possible. Possible treatments include modulation of the gut microbiota species with diets, physical activity and supplements, and administration of drugs, such as metformin and aspirin.
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Affiliation(s)
- Edoardo Tacconi
- Department of Human Science and Quality of Life Promotion, San Raffaele Roma Open University, 00166 Rome, Italy
| | - Giuseppe Palma
- S.S.D. Sperimentazione Animale, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
- Correspondence:
| | - Davide De Biase
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Antonio Luciano
- S.S.D. Sperimentazione Animale, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Massimiliano Barbieri
- S.S.D. Sperimentazione Animale, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
| | - Filomena de Nigris
- Department of Precision Medicine, School of Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, Via De Crecchio 7, 80138 Naples, Italy
| | - Francesca Bruzzese
- S.S.D. Sperimentazione Animale, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, 80131 Naples, Italy
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25
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Al-Qadami G, Bowen J, Van Sebille Y, Secombe K, Dorraki M, Verjans J, Wardill H, Le H. Baseline gut microbiota composition is associated with oral mucositis and tumour recurrence in patients with head and neck cancer: a pilot study. Support Care Cancer 2023; 31:98. [PMID: 36607434 DOI: 10.1007/s00520-022-07559-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 12/21/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE Mounting evidence suggests that the gut microbiome influences radiotherapy efficacy and toxicity by modulating immune signalling. However, its contribution to radiotherapy outcomes in head and neck cancer (HNC) is yet to be investigated. This study, therefore, aimed to uncover associations between an individual's pre-therapy gut microbiota and (i) severity of radiotherapy-induced oral mucositis (OM), and (ii) recurrence risk in patients with HNC. METHODS In this prospective pilot study, 20 patients with HNC scheduled to receive radiotherapy or chemoradiotherapy were recruited. Stool samples were collected before treatment and microbial composition was analysed using 16S rRNA gene sequencing. OM severity was assessed using the NCI-CTCAE scoring system. Patients were also followed for 12 months of treatment completion to assess tumour recurrence. RESULTS Overall, 80% of the patients were male with a median age of 65.5 years. Fifty-three percent experienced mild/moderate OM while 47% developed severe OM. Furthermore, 18% experienced tumour relapse within 1 year of treatment completion. A pre-treatment microbiota enriched of Eubacterium, Victivallis, and Ruminococcus was associated with severe OM. Conversely, a higher relative abundance of immunomodulatory microbes Faecalibacterium, Prevotella, and Phascolarctobacterium was associated with a lower risk of tumour recurrence. CONCLUSION Our results indicate that a patient's gut microbiota composition at the start of treatment is linked to OM severity and recurrence risk. We now seek to validate these findings to determine their ability to predict treatment outcomes in HNC, with the goal of using this data to inform second-generation microbial therapeutics to optimise treatment outcomes for patients with HNC.
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Affiliation(s)
- Ghanyah Al-Qadami
- School of Biomedicine, University of Adelaide, Adelaide, South Australia, Australia.
| | - Joanne Bowen
- School of Biomedicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Ysabella Van Sebille
- UniSA Online, University of South Australia, Adelaide, South Australia, Australia
| | - Kate Secombe
- School of Biomedicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Mohsen Dorraki
- Australian Institute for Machine Learning (AIML), University of Adelaide, Adelaide, South Australia, Australia
- Lifelong Health Theme (Platform AI), South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Johan Verjans
- Australian Institute for Machine Learning (AIML), University of Adelaide, Adelaide, South Australia, Australia
- Lifelong Health Theme (Platform AI), South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Department of Cardiology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Hannah Wardill
- School of Biomedicine, University of Adelaide, Adelaide, South Australia, Australia
- Precision Medicine Theme (Cancer), South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Hien Le
- Department of Radiation Oncology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
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26
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Dietary Methionine Restriction Alleviates Choline-Induced Tri-Methylamine-N-Oxide (TMAO) Elevation by Manipulating Gut Microbiota in Mice. Nutrients 2023; 15:nu15010206. [PMID: 36615863 PMCID: PMC9823801 DOI: 10.3390/nu15010206] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/14/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023] Open
Abstract
Dietary methionine restriction (MR) has been shown to decrease plasma trimethylamine-N-oxide (TMAO) levels in high-fat diet mice; however, the specific mechanism used is unknown. We speculated that the underlying mechanism is related with the gut microbiota, and this study aimed to confirm the hypothesis. In this study, we initially carried out an in vitro fermentation experiment and found that MR could reduce the ability of gut microbiota found in the contents of healthy mice and the feces of healthy humans to produce trimethylamine (TMA). Subsequently, mice were fed a normal diet (CON, 0.20% choline + 0.86% methionine), high-choline diet (H-CHO, 1.20% choline + 0.86% methionine), or high-choline + methionine-restricted diet (H-CHO+MR, 1.20% choline + 0.17% methionine) for 3 months. Our results revealed that MR decreased plasma TMA and TMAO levels in H-CHO-diet-fed mice without changing hepatic FMO3 gene expression and enzyme activity, significantly decreased TMA levels and expression of choline TMA-lyase (CutC) and its activator CutD, and decreased CutC activity in the intestine. Moreover, MR significantly decreased the abundance of TMA-producing bacteria, including Escherichia-Shigella (Proteobacteria phylum) and Anaerococcus (Firmicutes phylum), and significantly increased the abundance of short-chain fatty acid (SCFA)-producing bacteria and SCFA levels. Furthermore, both MR and sodium butyrate supplementation significantly inhibited bacterial growth, down-regulated CutC gene expression levels in TMA-producing bacteria, including Escherichia fergusonii ATCC 35469 and Anaerococcus hydrogenalis DSM 7454 and decreased TMA production from bacterial growth under in vitro anaerobic fermentation conditions. In conclusion, dietary MR alleviates choline-induced TMAO elevation by manipulating gut microbiota in mice and may be a promising approach to reducing circulating TMAO levels and TMAO-induced atherosclerosis.
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27
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Chen X, Li H, Mandic M, Hoffmeister M, Brenner H. Assessment of Body Mass Index, Polygenic Risk Score, and Development of Colorectal Cancer. JAMA Netw Open 2022; 5:e2248447. [PMID: 36547977 PMCID: PMC9857417 DOI: 10.1001/jamanetworkopen.2022.48447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
IMPORTANCE Excess weight, the prevalence of which is high and increasing in many countries, is linked to multiple adverse health outcomes, including increased colorectal cancer (CRC) risk. Better communication of health risks associated with excess weight might support efforts of prevention. OBJECTIVE To evaluate the individual and joint associations of body mass index (BMI) and polygenic risk with CRC, to assess potential interactions among them, and to quantify by how much increased polygenic risk for CRC can be offset by having a BMI within reference range. DESIGN, SETTING, AND PARTICIPANTS This population-based case-control study was conducted in the Rhine-Neckar region of southwest Germany, with recruitment from 2003 to 2017. Participants with both risk factor and genetic information were included for analysis. Data analysis was conducted from December 8, 2021, to February 17, 2022. EXPOSURES BMI was calculated as self-reported weight in kilograms approximately 10 years before diagnosis or interview and current height in meters squared. A polygenic risk score (PRS) was built based on 140 CRC-related risk loci. MAIN OUTCOMES AND MEASURES Individual and joint associations of BMI and PRS with CRC were estimated using multiple logistic regression. Associations of excess weight with CRC were quantified by adjusted odds ratios (aORs) and genetic risk equivalents (GREs), the equivalent outcomes conveyed by defined differences in PRS percentiles. RESULTS Among 9169 participants (median [IQR] age, 69 [62-76] years; 5589 [61.0%] male participants) included, 5053 had CRC and 4116 did not. BMI of 30 or greater was associated with higher odds of having CRC compared with BMI less than 25 (aOR, 1.71; 95% CI, 1.49-1.97), independent of PRS levels (P for interaction = .45). Participants with BMI of 30 or greater and a PRS in the highest tertile had higher odds of CRC compared with participants with BMI less than 25 and a PRS in the lowest tertile (aOR, 3.82; 95% CI, 3.03-4.82). The estimated association of BMI greater than 30 with CRC risk was equivalent to that of having a 41 (95% CI, 29-53)-percentile higher PRS. BMI of 30 or greater was particularly associated with stage IV CRC (aOR, 2.21; 95% CI, 1.71-2.84). CONCLUSIONS AND RELEVANCE These findings suggest that excess weight was associated with CRC regardless of PRS levels. The association of having a BMI within reference range may be similar to that of having a substantially lower polygenic risk for CRC.
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Affiliation(s)
- Xuechen Chen
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- Medical Faculty Heidelberg, Heidelberg University, Heidelberg, Germany
| | - Hengjing Li
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- Medical Faculty Heidelberg, Heidelberg University, Heidelberg, Germany
| | - Marko Mandic
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- Medical Faculty Heidelberg, Heidelberg University, Heidelberg, Germany
| | - Michael Hoffmeister
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- German Cancer Consortium, German Cancer Research Center, Heidelberg, Germany
- Division of Preventive Oncology, German Cancer Research Center and National Center for Tumor Diseases, Heidelberg, Germany
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28
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Lin PH, Howard L, Freedland SJ. Weight loss via a low-carbohydrate diet improved the intestinal permeability marker, zonulin, in prostate cancer patients. Ann Med 2022; 54:1221-1225. [PMID: 35486445 PMCID: PMC9067987 DOI: 10.1080/07853890.2022.2069853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Accumulating evidence suggest that gut microbiota may impact urologic health including prostate cancer (PC), potentially via affecting intestinal permeability (IP). Studies have indicated that disrupted IP may be improved by healthy diets and weight loss. In the Carbohydrate and Prostate Study 2 (CAPS2) clinical trial, which showed that a low-carbohydrate diet (LCD) reduced weight significantly in men with PC and suggestively slowed PC disease progression, we explored the impact of LCD on an IP marker, zonulin and an inflammation marker, high sensitivity C-reactive protein (hsCRP). METHODS CAPS2 was a 6-month randomized controlled trial testing a LCD intervention vs. control on PC progression using prostate-specific antigen doubling time (PSADT) as the marker. All 45 participants had prior primary PC treatment, PSADT >3 and <36 months, and body mass index (BMI) ≥24 kg/m2. RESULTS At 6-month, zonulin decreased in the LCD arm (median -8.3%, IQR -16.6, 0.3%) while the control increased slightly (median 1.4%, IQR -3.0, 13.3%; p = .014). No changes were observed in hsCRP. Linear regression models showed that weight change was significantly associated with log(PSADT) such that the greater the weight loss, the longer the PSADT(p = .003). There was a similar inverse trend between change in zonulin and log(PSADT) (p = .050). Nevertheless, the mediation analysis showed that zonulin was not a significant intermediary mechanism of the effect of weight change on PSADT (p = .3). CONCLUSION Future studies are merited to examine further the potential association of IP with inflammation and to clarify if improvement in IP is associated with decreased PC progression. Trial registration: NCT01763944. KEY MESSAGESGut microbiota may impact urologic health including prostate cancer, potentially via affecting intestinal permeability.Weight loss significantly improved intestinal permeability in prostate cancer patients.Improvement in intestinal permeability was associated with slowed prostate cancer progression as indicated by the PSA doubling time.
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Affiliation(s)
- Pao-Hwa Lin
- Department of Medicine, Nephrology Division, Duke University Medical Center, Durham, NC, USA
| | - Lauren Howard
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Stephen J Freedland
- Department of Surgery, Center for Integrated Research on Cancer and Lifestyle, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, CA, USA.,Department of Surgery, Division of Urology, Cedars-Sinai Medical Center, Section of Urology, Los Angeles, CA, USA.,Department of Surgery, Durham Veterans Affairs Medical Center, Durham, NC, USA
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29
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Xiong S, Liu K, Yang F, Dong Y, Zhang H, Wu P, Zhou Y, Zhang L, Wu Q, Zhao X, Li W, Yuan L, Huang B, Yue R, Feng L, Chen J, Zhang Y. Global research trends on inflammatory bowel diseases and colorectal cancer: A bibliometric and visualized study from 2012 to 2021. Front Oncol 2022; 12:943294. [DOI: 10.3389/fonc.2022.943294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 10/25/2022] [Indexed: 12/03/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic non-specific inflammatory disease of intestinal tract and a common digestive system disease. Current studies have shown that IBD significantly increases the incidence of colorectal cancer (CRC), and is positively correlated with the degree and extent of inflammation of IBD. The relationship between IBD and CRC has attracted extensive attention. However, the relationship between IBD and CRC has not been systematically studied by bibliometrics and visual analysis. This study conducted bibliometric analysis based on 3528 publications from the Core Collection of Web of Science to determine the research status, research hotspots and frontiers of this field. The results show that the number of publications has increased significantly over the past 10 years. The cooperative network analysis shows that the United States, Mayo Clin and Bo Shen are the country, institution and author with the most publications respectively. Belgium, Icahn Sch Med Mt Sinai and Erik Mooiweer are the most collaborative country, institution and author respectively. Analysis of keywords and references showed that inflammation, intestinal flora, and obesity were hot topics in this field. Analysis of keyword outbreaks shows that the gut microbiome and metabolism will be an emerging new research area and a potential hot spot for future research. This study is the first to visually examine the association between IBD and CRC using bibliometrics and visual analysis, and to predict potential future research trends.
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30
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Mei S, Deng Z, Chen Y, Ning D, Guo Y, Fan X, Wang R, Meng Y, Zhou Q, Tian X. Dysbiosis: The first hit for digestive system cancer. Front Physiol 2022; 13:1040991. [DOI: 10.3389/fphys.2022.1040991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/01/2022] [Indexed: 11/23/2022] Open
Abstract
Gastrointestinal cancer may be associated with dysbiosis, which is characterized by an alteration of the gut microbiota. Understanding the role of gut microbiota in the development of gastrointestinal cancer is useful for cancer prevention and gut microbiota-based therapy. However, the potential role of dysbiosis in the onset of tumorigenesis is not fully understood. While accumulating evidence has demonstrated the presence of dysbiosis in the intestinal microbiota of both healthy individuals and patients with various digestive system diseases, severe dysbiosis is often present in patients with digestive system cancer. Importantly, specific bacteria have been isolated from the fecal samples of these patients. Thus, the association between dysbiosis and the development of digestive system cancer cannot be ignored. A new model describing this relationship must be established. In this review, we postulate that dysbiosis serves as the first hit for the development of digestive system cancer. Dysbiosis-induced alterations, including inflammation, aberrant immune response, bacteria-produced genotoxins, and cellular stress response associated with genetic, epigenetic, and/or neoplastic changes, are second hits that speed carcinogenesis. This review explains the mechanisms for these four pathways and discusses gut microbiota-based therapies. The content included in this review will shed light on gut microbiota-based strategies for cancer prevention and therapy.
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31
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Sánchez-Quintero MJ, Delgado J, Medina-Vera D, Becerra-Muñoz VM, Queipo-Ortuño MI, Estévez M, Plaza-Andrades I, Rodríguez-Capitán J, Sánchez PL, Crespo-Leiro MG, Jiménez-Navarro MF, Pavón-Morón FJ. Beneficial Effects of Essential Oils from the Mediterranean Diet on Gut Microbiota and Their Metabolites in Ischemic Heart Disease and Type-2 Diabetes Mellitus. Nutrients 2022; 14:nu14214650. [PMID: 36364913 PMCID: PMC9657080 DOI: 10.3390/nu14214650] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/27/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022] Open
Abstract
Ischemic heart disease (IHD) and type-2 diabetes mellitus (T2DM) remain major health problems worldwide and commonly coexist in individuals. Gut microbial metabolites, such as trimethylamine N-oxide (TMAO) and short-chain fatty acids (SCFAs), have been linked to cardiovascular and metabolic diseases. Previous studies have reported dysbiosis in the gut microbiota of these patients and the prebiotic effects of some components of the Mediterranean diet. Essential oil emulsions of savory (Satureja hortensis), parsley (Petroselinum crispum) and rosemary (Rosmarinus officinalis) were assessed as nutraceuticals and prebiotics in IHD and T2DM. Humanized mice harboring gut microbiota derived from that of patients with IHD and T2DM were supplemented with L-carnitine and orally treated with essential oil emulsions for 40 days. We assessed the effects on gut microbiota composition and abundance, microbial metabolites and plasma markers of cardiovascular disease, inflammation and oxidative stress. Our results showed that essential oil emulsions in mice supplemented with L-carnitine have prebiotic effects on beneficial commensal bacteria, mainly Lactobacillus genus. There was a decrease in plasma TMAO and an increase in fecal SCFAs levels in mice treated with parsley and rosemary essential oils. Thrombomodulin levels were increased in mice treated with savory and parsley essential oils. While mice treated with parsley and rosemary essential oils showed a decrease in plasma cytokines (INFɣ, TNFα, IL-12p70 and IL-22); savory essential oil was associated with increased levels of chemokines (CXCL1, CCL2 and CCL11). Finally, there was a decrease in protein carbonyls and pentosidine according to the essential oil emulsion. These results suggest that changes in the gut microbiota induced by essential oils of parsley, savory and rosemary as prebiotics could differentially regulate cardiovascular and metabolic factors, which highlights the potential of these nutraceuticals for reducing IHD risk in patients affected by T2DM.
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Affiliation(s)
- María José Sánchez-Quintero
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Josué Delgado
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Higiene y Seguridad Alimentaria, Facultad de Veterinaria, IPROCAR, Universidad de Extremadura, 10003 Cáceres, Spain
- Correspondence: (J.D.); (M.F.J.-N.); Tel.: +34-927251425 (J.D.)
| | - Dina Medina-Vera
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain
- Departamento de Dermatología y Medicina, Facultad de Medicina, Universidad de Málaga (UMA), 29010 Málaga, Spain
| | - Víctor M. Becerra-Muñoz
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - María Isabel Queipo-Ortuño
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Intercentros de Oncología Médica, Hospitales Universitarios Regional y Virgen de la Victoria y Centro de Investigaciones Médico Sanitarias (CIMES), 29010 Málaga, Spain
- Departamento de Especialidades Quirúrgicas, Bioquímica e Inmunología, Facultad de Medicina, Universidad de Málaga (UMA), 29010 Málaga, Spain
| | - Mario Estévez
- Instituto Universitario de Investigación de Carne y Productos Cárnicos (IPROCAR), Universidad de Extremadura (UEX), 10003 Cáceres, Spain
| | - Isaac Plaza-Andrades
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Intercentros de Oncología Médica, Hospitales Universitarios Regional y Virgen de la Victoria y Centro de Investigaciones Médico Sanitarias (CIMES), 29010 Málaga, Spain
| | - Jorge Rodríguez-Capitán
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Pedro L. Sánchez
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Servicio de Cardiología, Hospital Universitario de Salamanca, Universidad de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Maria G. Crespo-Leiro
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Servicio de Cardiología, Complexo Hospitalario Universitario A Coruña (CHUAC), Universidade da Coruña (UDC), Instituto Investigación Biomédica A Coruña (INIBIC), 15006 A Coruña, Spain
| | - Manuel F. Jiménez-Navarro
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Departamento de Dermatología y Medicina, Facultad de Medicina, Universidad de Málaga (UMA), 29010 Málaga, Spain
- Correspondence: (J.D.); (M.F.J.-N.); Tel.: +34-927251425 (J.D.)
| | - Francisco Javier Pavón-Morón
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA-Plataforma BIONAND), 29590 Málaga, Spain
- Unidad de Gestión Clínica Área del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain
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Gut Microbiota and Therapy in Metastatic Melanoma: Focus on MAPK Pathway Inhibition. Int J Mol Sci 2022; 23:ijms231911990. [PMID: 36233289 PMCID: PMC9569448 DOI: 10.3390/ijms231911990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022] Open
Abstract
Gut microbiome (GM) and its either pro-tumorigenic or anti-tumorigenic role is intriguing and constitutes an evolving landscape in translational oncology. It has been suggested that these microorganisms may be involved in carcinogenesis, cancer treatment response and resistance, as well as predisposition to adverse effects. In melanoma patients, one of the most immunogenic cancers, immune checkpoint inhibitors (ICI) and MAPK-targeted therapy—BRAF/MEK inhibitors—have revolutionized prognosis, and the study of the microbiome as a modulating factor is thus appealing. Although BRAF/MEK inhibitors constitute one of the main backbones of treatment in melanoma, little is known about their impact on GM and how this might correlate with immune re-induction. On the contrary, ICI and their relationship to GM has become an interesting field of research due to the already-known impact of immunotherapy in modulating the immune system. Immune reprogramming in the tumor microenvironment has been established as one of the main targets of microbiome, since it can induce immunosuppressive phenotypes, promote inflammatory responses or conduct anti-tumor responses. As a result, ongoing clinical trials are evaluating the role of fecal microbiota transplant (FMT), as well as the impact of using dietary supplements, antibiotics and probiotics in the prediction of response to therapy. In this review, we provide an overview of GM’s link to cancer, its relationship with the immune system and how this may impact response to treatments in melanoma patients. We also discuss insights about novel therapeutic approaches including FMT, changes in diet and use of probiotics, prebiotics and symbiotics. Finally, we hypothesize on the possible pathways through which GM may impact anti-tumor efficacy in melanoma patients treated with targeted therapy, an appealing subject of which little is known.
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Beneficial Effects of Anti-Inflammatory Diet in Modulating Gut Microbiota and Controlling Obesity. Nutrients 2022; 14:nu14193985. [PMID: 36235638 PMCID: PMC9572805 DOI: 10.3390/nu14193985] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/15/2022] [Accepted: 09/20/2022] [Indexed: 11/17/2022] Open
Abstract
Obesity has consistently been associated with an increased risk of metabolic abnormalities such as diabetes, hyperlipidemia, and cardiovascular diseases, as well as the development of several types of cancer. In recent decades, unfortunately, the rate of overweight/obesity has increased significantly among adults and children. A growing body of evidence shows that there is a relationship between metabolic disorders such as obesity and the composition of the gut microbiota. Additionally, inflammation is considered to be a driving force in the obesity–gut microbiota connection. Therefore, it seems that anti-inflammatory nutrients, foods, and/or diets can play an essential role in the management of obesity by affecting the intestinal flora and controlling inflammatory responses. In this review, we describe the links between the gut microbiota, obesity, and inflammation, and summarize the benefits of anti-inflammatory diets in preventing obesity.
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Shahi SK, Ghimire S, Lehman P, Mangalam AK. Obesity induced gut dysbiosis contributes to disease severity in an animal model of multiple sclerosis. Front Immunol 2022; 13:966417. [PMID: 36164343 PMCID: PMC9509138 DOI: 10.3389/fimmu.2022.966417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/08/2022] [Indexed: 01/28/2023] Open
Abstract
Background Multiple sclerosis (MS) is an inflammatory and demyelinating disease of the CNS. The etiology of MS is complex, and results from the interaction of multiple environmental and genetic factors. Although human leukocyte antigen-HLA alleles such as HLA-DR2 and -DR3 are considered the strongest genetic factors, the environmental factors responsible for disease predisposition are not well understood. Recently, diet and gut microbiota have emerged as an important environmental factors linked to the increased incidence of MS. Especially, western diets rich in protein and fat have been linked to the increased incidence of obesity. Numerous clinical data indicate a role of obesity and gut microbiota in MS; however, the mechanistic link between gut microbiota and obesity in the pathobiology of MS remains unclear. The present study determines the mechanisms driving MS severity in the context of obesity utilizing a high-fat diet (HFD) induced obese HLA-DR3 class-II transgenic mouse model of MS. Methods HLA-DR3 transgenic mice were kept on a standard HFD diet or Normal Chow (NC) for eight weeks. Gut microbiota composition and functional analysis were performed from the fecal DNA of mice. Experimental autoimmune encephalomyelitis-EAE (an animal model of MS) was induced by immunization with the proteolipid protein-PLP91-110 peptide in complete Freud's Adjuvant (CFA) and pertussis toxin. Results We observed that HFD-induced obesity caused gut dysbiosis and severe disease compared to mice on NC. Amelioration of disease severity in mice depleted of gut microbiota suggested an important role of gut bacteria in severe EAE in obese mice. Fecal microbiota analysis in HFD mice shows gut microbiota alterations with an increase in the abundance of Proteobacteria and Desulfovibrionaceae bacteria and modulation of various bacterial metabolic pathways including bacterial hydrogen sulfide biosynthetic pathways. Finally, mice on HFD showed increased gut permeability and systemic inflammation suggesting a role gut barrier modulation in obesity induced disease severity. Conclusions This study provides evidence for the involvement of the gut microbiome and associated metabolic pathways plus gut permeability in obesity-induced modulation of EAE disease severity. A better understanding of the same will be helpful to identify novel therapeutic targets to reduce disease severity in obese MS patients.
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Affiliation(s)
- Shailesh K. Shahi
- Department of Pathology, University of Iowa, Iowa City, IA, United States,*Correspondence: Ashutosh K. Mangalam, ; Shailesh K. Shahi,
| | - Sudeep Ghimire
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | - Peter Lehman
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | - Ashutosh K. Mangalam
- Department of Pathology, University of Iowa, Iowa City, IA, United States,Graduate Program in Immunology, University of Iowa, Iowa City, IA, United States,Graduate Program in Molecular Medicine, University of Iowa, Iowa City, IA, United States,*Correspondence: Ashutosh K. Mangalam, ; Shailesh K. Shahi,
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Chisari E, Cho J, Wouthuyzen-Bakker M, Parvizi J. Gut permeability may be associated with periprosthetic joint infection after total hip and knee arthroplasty. Sci Rep 2022; 12:15094. [PMID: 36064964 PMCID: PMC9445168 DOI: 10.1038/s41598-022-19034-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 08/23/2022] [Indexed: 12/24/2022] Open
Abstract
A growing number of recent investigations on the human genome, gut microbiome, and proteomics suggests that the loss of mucosal barrier function, particularly in the gastrointestinal tract, may substantially affect antigen trafficking, ultimately influencing the close bidirectional interaction between the gut microbiome and the immune system. This cross-talk is highly influential in shaping the host immune system function and ultimately affecting the outcome of interventions. We hypothesized that the loss of mucosal barrier in the gut may be associatedto acute and chronic periprosthetic joint infections (PJI). Zonulin, soluble CD14 (sCD14), and lipopolysaccharide (LPS) were tested in plasma as part of a prospective cohort study of patients undergoing primary arthroplasty or revision arthroplasty because of an aseptic failure or PJI (as defined by the 2018 criteria). All blood samples were collected before antibiotic administration. Samples were tested using commercially available enzyme-linked immunosorbent assays as markers for gut permeability. A total of 134 patients were included in the study of which 44 patients had PJI (30 chronic and 14 acute), and the remaining 90 patients were categorized as non-infected that included 64 patients revised for aseptic failure, and 26 patients undergoing primary total joint arthroplasty. Both Zonulin (7.642 ± 6.077 ng/mL vs 4.560 ± 3.833 ng/mL; p < 0.001) and sCD14 levels (555.721 ± 216.659 ng/mL vs 396.872 ± 247.920 ng/mL; p = 0.003) were significantly elevated in the PJI group compared to non-infected cases. Higher levels of Zonulin were found in acute infections compared to chronic PJI (11.595 ± 6.722 ng/mL vs. 5.798 ± 4.841 ng/mL; p = 0.005). This prospective study reveals a possible link between gut permeability and the ‘gut-immune-joint axis’ in PJI. If this association continues to be borne out with a larger cohort and more in-depth analysis, it will have a clinically significant implication in managing patients with PJI. It may be that in addition to the administration of antimicrobials, patients with PJI and other orthopaedic infections may benefit from administration of gastrointestinal modulators such as pro and prebiotics.
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Affiliation(s)
- Emanuele Chisari
- Rothman Orthopaedic Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA, 19107, USA. .,Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Jeongeun Cho
- Rothman Orthopaedic Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA, 19107, USA
| | - Marjan Wouthuyzen-Bakker
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA, 19107, USA
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36
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Lin K, Zhu L, Yang L. Gut and obesity/metabolic disease: Focus on microbiota metabolites. MedComm (Beijing) 2022; 3:e171. [PMID: 36092861 PMCID: PMC9437302 DOI: 10.1002/mco2.171] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 11/10/2022] Open
Abstract
Obesity is often associated with the risk of chronic inflammation and other metabolic diseases, such as diabetes, cardiovascular disease, and cancer. The composition and activity of the gut microbiota play an important role in this process, affecting a range of physiological processes, such as nutrient absorption and energy metabolism. The active gut microbiota can produce a large number of physiologically active substances during the process of intestinal metabolism and reproduction, including short‐chain/long‐chain fatty acids, secondary bile acids, and tryptophan metabolites with beneficial effects on metabolism, as well as negative metabolites, including trimethylamine N‐oxide, delta‐valerobetaine, and imidazole propionate. How gut microbiota specifically affect and participate in metabolic and immune activities, especially the metabolites directly produced by gut microbiota, has attracted extensive attention. So far, some animal and human studies have shown that gut microbiota metabolites are correlated with host obesity, energy metabolism, and inflammation. Some pathways and mechanisms are slowly being discovered. Here, we will focus on the important metabolites of gut microbiota (beneficial and negative), and review their roles and mechanisms in obesity and related metabolic diseases, hoping to provide a new perspective for the treatment and remission of obesity and other metabolic diseases from the perspective of metabolites.
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Affiliation(s)
- Ke Lin
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy West China Hospital Sichuan University Chengdu China
| | - Lixin Zhu
- Guangdong Institute of Gastroenterology Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease Sixth Affiliated Hospital of Sun Yat‐Sen University Guangzhou China
- Department of Colorectal Surgery Sixth Affiliated Hospital Sun Yat‐Sen University Guangzhou China
| | - Li Yang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy West China Hospital Sichuan University Chengdu China
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37
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The Related Metabolic Diseases and Treatments of Obesity. Healthcare (Basel) 2022; 10:healthcare10091616. [PMID: 36141228 PMCID: PMC9498506 DOI: 10.3390/healthcare10091616] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
Obesity is a chronic disease characterized by the abnormal or excessive accumulation of body fat, affecting more than 1 billion people worldwide. Obesity is commonly associated with other metabolic disorders, such as type 2 diabetes, non-alcoholic fatty liver disease, cardiovascular diseases, chronic kidney disease, and cancers. Factors such as a sedentary lifestyle, overnutrition, socioeconomic status, and other environmental and genetic conditions can cause obesity. Many molecules and signaling pathways are involved in the pathogenesis of obesity, such as nuclear factor (NF)-κB, Toll-like receptors (TLRs), adhesion molecules, G protein-coupled receptors (GPCRs), programmed cell death 1 (PD-1)/programmed death-ligand 1 (PD-L1), and sirtuin 1 (SIRT1). Commonly used strategies of obesity management and treatment include exercise and dietary change or restriction for the early stage of obesity, bariatric surgery for server obesity, and Food and Drug Administration (FDA)-approved medicines such as semaglutide and liraglutide that can be used as monotherapy or as a synergistic treatment. In addition, psychological management, especially for patients with obesity and distress, is a good option. Gut microbiota plays an important role in obesity and its comorbidities, and gut microbial reprogramming by fecal microbiota transplantation (FMT), probiotics, prebiotics, or synbiotics shows promising potential in obesity and metabolic syndrome. Many clinical trials are ongoing to evaluate the therapeutic effects of different treatments. Currently, prevention and early treatment of obesity are the best options to prevent its progression to many comorbidities.
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38
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Yu L, Maishi N, Akahori E, Hasebe A, Takeda R, Yanagawa Matsuda A, Hida Y, Nam JM, Onodera Y, Kitagawa Y, Hida K. The oral bacterium Streptococcus mutans promotes tumor metastasis by inducing vascular inflammation. Cancer Sci 2022; 113:3980-3994. [PMID: 35997541 DOI: 10.1111/cas.15538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 07/25/2022] [Accepted: 07/31/2022] [Indexed: 11/28/2022] Open
Abstract
Recent studies have demonstrated a relationship between oral bacteria and systemic inflammation. Endothelial cells (ECs), which line blood vessels, control the opening and closing of the vascular barrier and contribute to hematogenous metastasis; however, the role of oral bacteria-induced vascular inflammation in tumor metastasis remains unclear. In this study, we examined the phenotypic changes in vascular ECs following Streptococcus mutans (S. mutans) stimulation in vitro and in vivo. The expression of molecules associated with vascular inflammation and barrier-associated adhesion was analyzed. Tumor metastasis was evaluated after intravenous injection of S. mutans in murine breast cancer hematogenous metastasis model. The results indicated that S. mutans invaded the ECs accompanied by inflammation and NF-κB activation. S. mutans exposure potentially disrupts endothelial integrity by decreasing VE-cadherin expression. The migration and adhesion of tumor cells were enhanced in S. mutans-stimulated ECs. Furthermore, S. mutans-induced lung vascular inflammation promoted breast cancer cell metastasis to the lungs in vivo. The results indicate that oral bacteria promote tumor metastasis through vascular inflammation and disruption of vascular barrier function. Improving oral hygiene in patients with cancer is of great significance in preventing postoperative pneumonia and tumor metastasis.
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Affiliation(s)
- Li Yu
- Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan.,Oral Diagnosis and Medicine, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Nako Maishi
- Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Erika Akahori
- Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Akira Hasebe
- Oral Molecular Microbiology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Ryo Takeda
- Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan.,Oral Diagnosis and Medicine, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Aya Yanagawa Matsuda
- Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Yasuhiro Hida
- Department of Cardiovascular and Thoracic Surgery, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Jin-Min Nam
- Global Center for Biomedical Science and Engineering (GCB), Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Yasuhito Onodera
- Global Center for Biomedical Science and Engineering (GCB), Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshimasa Kitagawa
- Oral Diagnosis and Medicine, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Kyoko Hida
- Vascular Biology and Molecular Pathology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
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Zhong M, Yan Y, Yuan H, A R, Xu G, Cai F, Yang Y, Wang Y, Zhang W. Astragalus mongholicus polysaccharides ameliorate hepatic lipid accumulation and inflammation as well as modulate gut microbiota in NAFLD rats. Food Funct 2022; 13:7287-7301. [PMID: 35726797 DOI: 10.1039/d2fo01009g] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hepatic lipid accumulation, inflammation and gut microbiota dysbiosis are hallmarks of non-alcoholic fatty liver disease (NAFLD), which is the leading cause of chronic liver disease with no therapeutic consensus. The aim of the present study was to elucidate the mechanism of the effects of Astragalus mongholicus polysaccharides (mAPS) on lipid metabolism, inflammation and gut microbiota in a rat model of NAFLD induced by a high-fat diet (HFD). Our results showed that mAPS and Berberine supplementation reduced HFD-induced increases in body weight, alanine aminotransferase (ALT), aspartate aminotransferase (AST) and homeostasis model assessment of insulin resistance (HOMA-IR), and these changes were accompanied by improved histological changes in the liver. Moreover, administration of mAPS and Berberine resulted in lower levels of serum triglycerides, total cholesterol and low-density lipoprotein cholesterol (LDL-c) but higher levels of high-density lipoprotein cholesterol (HDL-c) in HFD-fed rats. mAPS and Berberine treatment markedly reduced HFD-induced hepatic lipid accumulation, which was associated with increased expression of phosphorylated- adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) and peroxisome proliferator-activated receptor-α (PPAR-α) but decreased expression of sterol-regulatory element binding proteins (SREBP-1). Pretreatment with mAPS or Berberine reduced HFD-induced expression of proinflammatory cytokines, such as tumor necrosis factor-α (TNF-α). In addition, mAPS downregulated the expression of colonic and hepatic Toll-like receptor 4 (TLR4) as well as phosphorylated- nuclear factor-κB (NF-κB) and nucleotide-binding domain, leucine-rich repeat-containing receptor, pyrin domain-containing-3 (NLRP3) but upregulated the expression of zonula occludens-1 (ZO-1) and occludin in HFD-fed rats. Notably, mAPS treatment reshaped the intestinal microbiome by lowering the Firmicutes to Bacteroidetes (F/B) ratio and increasing the abundance of Proteobacteria and Epsilonbacteria. mAPS supplementation had little effect on the profile of fecal short-chain fatty acids (SCFAs), but it significantly decreased the expression of colonic and hepatic G-protein coupled receptor (GPR) 41 and 43. Therefore, mAPS supplementation ameliorates hepatic inflammation and lipid accumulation in NAFLD by modulating the gut microbiota and SCFA-GPR signaling pathways. The present study provides new evidence for mAPS as a natural active substance in the treatment of NAFLD.
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Affiliation(s)
- Mingyue Zhong
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
| | - Yan Yan
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
| | - Haisheng Yuan
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
| | - Rong A
- College of Science, Inner Mongolia Agricultural University, Hohhot, 010018, PR China
| | - Guoquan Xu
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
| | - Fujuan Cai
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
| | - Yuning Yang
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
| | - Yuzhen Wang
- College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
| | - Wenguang Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, 010018, PR China.
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40
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Png CW, Chua YK, Law JH, Zhang Y, Tan KK. Alterations in co-abundant bacteriome in colorectal cancer and its persistence after surgery: a pilot study. Sci Rep 2022; 12:9829. [PMID: 35701595 PMCID: PMC9198081 DOI: 10.1038/s41598-022-14203-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 05/17/2022] [Indexed: 02/07/2023] Open
Abstract
There is growing interest in the role of gut microbiome in colorectal cancer (CRC), ranging from screening to disease recurrence. Our study aims to identify microbial markers characteristic of CRC and to examine if changes in bacteriome persist after surgery. Forty-nine fecal samples from 25 non-cancer (NC) individuals and 12 CRC patients, before and 6-months after surgery, were collected for analysis by bacterial 16S rRNA gene sequencing. Bacterial richness and diversity were reduced, while pro-carcinogenic bacteria such as Bacteroides fragilis and Odoribacter splanchnicus were increased in CRC patients compared to NC group. These differences were no longer observed after surgery. Comparison between pre-op and post-op CRC showed increased abundance of probiotic bacteria after surgery. Concomitantly, bacteria associated with CRC progression were observed to have increased after surgery, implying persistent dysbiosis. In addition, functional pathway predictions based on the bacterial 16S rRNA gene data showed that various pathways were differentially enriched in CRC compared to NC. Microbiome signatures characteristic of CRC comprise altered bacterial composition. Elements of these dysbiotic signatures persists even after surgery, suggesting possible field-change in remnant non-diseased colon. Future studies should involve a larger sample size with microbiome data collected at multiple time points after surgery to examine if these dysbiotic patterns truly persist and also correlate with disease outcomes.
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Affiliation(s)
- Chin-Wen Png
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yong-Kang Chua
- Division of Colorectal Surgery, Department of Surgery, National University Hospital, Singapore, Singapore
| | - Jia-Hao Law
- Division of Colorectal Surgery, Department of Surgery, National University Hospital, Singapore, Singapore
| | - Yongliang Zhang
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ker-Kan Tan
- Division of Colorectal Surgery, Department of Surgery, National University Hospital, Singapore, Singapore. .,Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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41
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Jing L, Zhang H, Xiang Q, Shen L, Guo X, Zhai C, Hu H. Targeting Trimethylamine N-Oxide: A New Therapeutic Strategy for Alleviating Atherosclerosis. Front Cardiovasc Med 2022; 9:864600. [PMID: 35770223 PMCID: PMC9235870 DOI: 10.3389/fcvm.2022.864600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
Atherosclerosis (AS) is one of the most common cardiovascular diseases (CVDs), and there is currently no effective drug to reverse its pathogenesis. Trimethylamine N-oxide (TMAO) is a metabolite of the gut flora with the potential to act as a new risk factor for CVD. Many studies have shown that TMAO is involved in the occurrence and development of atherosclerotic diseases through various mechanisms; however, the targeted therapy for TMAO remains controversial. This article summarizes the vital progress made in relation to evaluations on TMAO and AS in recent years and highlights novel probable approaches for the prevention and treatment of AS.
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Affiliation(s)
- Lele Jing
- Department of Cardiology, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Honghong Zhang
- School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qiannan Xiang
- School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Liang Shen
- Department of Cardiology, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Xiaoxia Guo
- Department of Cardiology, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Changlin Zhai
- Department of Cardiology, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Huilin Hu
- Department of Cardiology, The Affiliated Hospital of Jiaxing University, Jiaxing, China
- *Correspondence: Huilin Hu
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Huang S, Zhang C, Xu T, Shaukat A, He Y, Chen P, Lin L, Yue K, Cao Q, Tong X. Integrated Fecal Microbiome and Metabolomics Reveals a Novel Potential Biomarker for Predicting Tibial Dyschondroplasia in Chickens. Front Physiol 2022; 13:887207. [PMID: 35634144 PMCID: PMC9133743 DOI: 10.3389/fphys.2022.887207] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/19/2022] [Indexed: 12/12/2022] Open
Abstract
Tibial dyschondroplasia (TD) is a metabolic tibial-tarsal disorder occurring in fast-growing poultry, and its diagnosis is mainly based on an invasive method. Here, we profiled the fecal gut microbiome and metabolome of broilers with and without TD to identify potential non-invasive and non-stress biomarkers of TD. First, TD broilers with the most pronounced clinical signs during the experiment were screened and faecal samples were collected for integrated microbiome and metabolomics analysis. Moreover, the diagnostic potential of identified biomarkers was further validated throughout the experiment. It was noted that the microbial and metabolic signatures of TD broilers differed from those of normal broilers. TD broilers were characterized by enriched bacterial OTUs of the genus Klebsiella, and depleted genera [Ruminococcus], Dorea, Ruminococcus, Oscillospira, Ochrobactrum, and Sediminibacterium. In addition, a total of 189 fecal differential metabolites were identified, mainly enriched in the purine, vitamin and amino acid metabolism, which were closely associated with differential microbiota and tibia-related indicators. Furthermore, three fecal metabolites were screened, including 4-hydroxybenzaldehyde, which distinguished TD from normal broilers with extremely high specificity and was superior to serum bone markers. These results indicated that gut microbiota equilibrium might influence the pathogenesis of TD by modulating host metabolism, and the identified fecal metabolite 4-hydroxybenzaldehyde might be a potential and non-invasive biomarker for predicting TD in chickens.
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Affiliation(s)
- Shucheng Huang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- *Correspondence: Shucheng Huang,
| | - Chaodong Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Tingting Xu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Aftab Shaukat
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Huazhong Agricultural University, Wuhan, China
| | - Yanfeng He
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Pan Chen
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Luxi Lin
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Ke Yue
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Qinqin Cao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Xishuai Tong
- Institutes of Agricultural Science and Technology Development (Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China)/College of Veterinary Medicine, Yangzhou University, Yangzhou, China
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Socol CT, Chira A, Martinez-Sanchez MA, Nuñez-Sanchez MA, Maerescu CM, Mierlita D, Rusu AV, Ruiz-Alcaraz AJ, Trif M, Ramos-Molina B. Leptin Signaling in Obesity and Colorectal Cancer. Int J Mol Sci 2022; 23:4713. [PMID: 35563103 PMCID: PMC9102849 DOI: 10.3390/ijms23094713] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/19/2022] [Accepted: 04/22/2022] [Indexed: 12/05/2022] Open
Abstract
Obesity and colorectal cancer (CRC) are among the leading diseases causing deaths in the world, showing a complex multifactorial pathology. Obesity is considered a risk factor in CRC development through inflammation, metabolic, and signaling processes. Leptin is one of the most important adipokines related to obesity and an important proinflammatory marker, mainly expressed in adipose tissue, with many genetic variation profiles, many related influencing factors, and various functions that have been ascribed but not yet fully understood and elucidated, the most important ones being related to energy metabolism, as well as endocrine and immune systems. Aberrant signaling and genetic variations of leptin are correlated with obesity and CRC, with the genetic causality showing both inherited and acquired events, in addition to lifestyle and environmental risk factors; these might also be related to specific pathogenic pathways at different time points. Moreover, mutation gain is a crucial factor enabling the genetic process of CRC. Currently, the inconsistent and insufficient data related to leptin's relationship with obesity and CRC indicate the necessity of further related studies. This review summarizes the current knowledge on leptin genetics and its potential relationship with the main pathogenic pathways of obesity and CRC, in an attempt to understand the molecular mechanisms of these associations, in the context of inconsistent and contradictory data. The understanding of these mechanisms linking obesity and CRC could help to develop novel therapeutic targets and prevention strategies, resulting in a better prognosis and management of these diseases.
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Affiliation(s)
| | - Alexandra Chira
- 2nd Medical Clinic, Department of Internal Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania;
| | - Maria Antonia Martinez-Sanchez
- Obesity and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain; (M.A.M.-S.); (M.A.N.-S.)
| | - Maria Angeles Nuñez-Sanchez
- Obesity and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain; (M.A.M.-S.); (M.A.N.-S.)
| | | | - Daniel Mierlita
- Department of Nutrition, University of Oradea, 410048 Oradea, Romania;
| | - Alexandru Vasile Rusu
- Life Science Institute, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania;
- Faculty of Animal Science and Biotechnology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Antonio Jose Ruiz-Alcaraz
- Department of Biochemistry and Molecular B and Immunology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain;
| | - Monica Trif
- Department of Food Research, Centiv GmbH, 28857 Syke, Germany;
| | - Bruno Ramos-Molina
- Obesity and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain; (M.A.M.-S.); (M.A.N.-S.)
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Said R, El Wakeel MA, Mohamed H, El Kassas G, Amer AF, Hamid MMA, Armaneos A, El-Zayat SR, Fadl NN. Assessment of Gut leakage Induced Systemic Inflammation in Children on Chronic Hemodialysis. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Children with chronic kidney disease (CKD) are at high risk to develop GIT complications such as intestinal wall edema and increased permeability which contributes to chronic systemic inflammation that increases morbidity and mortality burden.
AIM: This study aim was to show the relationship between inflammation and increased intestinal permeability in children on hemodialysis (HD).
METHODS: The study included 50 children with CKD on regular HD of variable duration; their age range was (5−16) years and 40 controls. They were followed up at Nephrology clinic- Eldemerdash hospital. Complete history taking, physical examination were done. Laboratory measurement in the form of zonulin, tumor necrosis factor-alpha (TNF-alpha), high sensitive C-reactive protein (hs-CRP), and alpha1-antitrypsin (AAT) were quantified in serum by ELISA method.
RESULTS: There was a highly significant decrease in anthropometric measures (weight, height and BMI) and their corresponding z score in cases compared to controls with p ≤ 0.001. Furthermore, there was significant increase of levels of zonulin, TNF-alpha, AAT, and hs-CRP in cases compared to controls with p value of 0.009, 0.001, 0.002, and 0.003, respectively. There was significant positive correlation between zonulin and (TNF-alpha, AAT, hs-CRP, and creatinine) with P values (0.003, 0.001, 0.001, and 0.001), respectively. Zonulin is negatively correlated with weight for age Z score (WAZ) and height with p value (0.01 and 0.018), respectively. TNF-alpha and hs-CRP were negatively correlated with WAZ with P-values of 0.02 and 0.01, respectively.
CONCLUSION: Children with CKD on chronic hemodialysis had elevated levels of zonulin, TNF-alpha, hs-CRP, and AAT which reflects gut permeability induced systemic inflammatory state.
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Wang X, Cheng L, Liu Y, Zhang R, Wu Z, Weng P, Zhang P, Zhang X. Polysaccharide Regulation of Intestinal Flora: A Viable Approach to Maintaining Normal Cognitive Performance and Treating Depression. Front Microbiol 2022; 13:807076. [PMID: 35369451 PMCID: PMC8966502 DOI: 10.3389/fmicb.2022.807076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 02/21/2022] [Indexed: 12/21/2022] Open
Abstract
The intestinal tract of a healthy body is home to a large variety and number of microorganisms that will affect every aspect of the host’s life. In recent years, polysaccharides have been found to be an important factor affecting intestinal flora. Polysaccharides are widely found in nature and play a key role in the life activities of living organisms. In the intestinal tract of living organisms, polysaccharides have many important functions, such as preventing the imbalance of intestinal flora and maintaining the integrity of the intestinal barrier. Moreover, recent studies suggest that gut microbes can influence brain health through the brain-gut axis. Therefore, maintaining brain health through polysaccharide modulation of gut flora deserves further study. In this review, we outline the mechanisms by which polysaccharides maintain normal intestinal flora structure, as well as improving cognitive function in the brain via the brain-gut axis by virtue of the intestinal flora. We also highlight the important role that gut microbes play in the pathogenesis of depression and the potential for treating depression through the use of polysaccharides to modulate the intestinal flora.
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Affiliation(s)
- Xinzhou Wang
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Lu Cheng
- Department of Food Science, Rutgers, The State University of New Jersey, Newark, NJ, United States
- *Correspondence: Lu Cheng,
| | - Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Ruilin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Zufang Wu
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Peifang Weng
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
| | - Peng Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
- Department of Student Affairs, Xinyang Normal University, Xinyang, China
- Peng Zhang,
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo, China
- Xin Zhang,
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Li J, Zhang AH, Wu FF, Wang XJ. Alterations in the Gut Microbiota and Their Metabolites in Colorectal Cancer: Recent Progress and Future Prospects. Front Oncol 2022; 12:841552. [PMID: 35223525 PMCID: PMC8875205 DOI: 10.3389/fonc.2022.841552] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/18/2022] [Indexed: 12/11/2022] Open
Abstract
Colorectal cancer (CRC) is a leading cause of cancer morbidity and mortality worldwide. The etiology and pathogenesis of CRC remain unclear. A growing body of evidence suggests dysbiosis of gut bacteria can contribute to the occurrence and development of CRC by generating harmful metabolites and changing host physiological processes. Metabolomics, a systems biology method, will systematically study the changes in metabolites in the physiological processes of the body, eventually playing a significant role in the detection of metabolic biomarkers and improving disease diagnosis and treatment. Metabolomics, in particular, has been highly beneficial in tracking microbially derived metabolites, which has substantially advanced our comprehension of host-microbiota metabolic interactions in CRC. This paper has briefly compiled recent research progress of the alterations of intestinal flora and its metabolites associated with CRC and the application of association analysis of metabolomics and gut microbiome in the diagnosis, prevention, and treatment of CRC; furthermore, we discuss the prospects for the problems and development direction of this association analysis in the study of CRC. Gut microbiota and their metabolites influence the progression and causation of CRC, and the association analysis of metabolomics and gut microbiome will provide novel strategies for the prevention, diagnosis, and therapy of CRC.
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Affiliation(s)
- Jing Li
- National Engineering Laboratory for the Development of Southwestern Endangered Medicinal Materials, Guangxi Botanical Garden of Medicinal Plant, Nanning, China.,National Chinmedomics Research Center, National Traditional Chinese Medicine (TCM) Key Laboratory of Serum Pharmacochemistry, Functional Metabolomics Laboratory, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Ai-Hua Zhang
- National Chinmedomics Research Center, National Traditional Chinese Medicine (TCM) Key Laboratory of Serum Pharmacochemistry, Functional Metabolomics Laboratory, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Fang-Fang Wu
- National Engineering Laboratory for the Development of Southwestern Endangered Medicinal Materials, Guangxi Botanical Garden of Medicinal Plant, Nanning, China
| | - Xi-Jun Wang
- National Engineering Laboratory for the Development of Southwestern Endangered Medicinal Materials, Guangxi Botanical Garden of Medicinal Plant, Nanning, China.,National Chinmedomics Research Center, National Traditional Chinese Medicine (TCM) Key Laboratory of Serum Pharmacochemistry, Functional Metabolomics Laboratory, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin, China.,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macao, Macao SAR, China
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Chu N, Ling J, Jie H, Leung K, Poon E. The potential role of lactulose pharmacotherapy in the treatment and prevention of diabetes. Front Endocrinol (Lausanne) 2022; 13:956203. [PMID: 36187096 PMCID: PMC9519995 DOI: 10.3389/fendo.2022.956203] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
The non-absorbable disaccharide lactulose is mostly used in the treatment of various gastrointestinal disorders such as chronic constipation and hepatic encephalopathy. The mechanism of action of lactulose remains unclear, but it elicits more than osmotic laxative effects. As a prebiotic, lactulose may act as a bifidogenic factor with positive effects in preventing and controlling diabetes. In this review, we summarized the current evidence for the effect of lactulose on gut metabolism and type 2 diabetes (T2D) prevention. Similar to acarbose, lactulose can also increase the abundance of the short-chain fatty acid (SCFA)-producing bacteria Lactobacillus and Bifidobacterium as well as suppress the potentially pathogenic bacteria Escherichia coli. These bacterial activities have anti-inflammatory effects, nourishing the gut epithelial cells and providing a protective barrier from microorganism infection. Activation of peptide tyrosine tyrosine (PYY) and glucagon-like peptide 1 (GLP1) can influence secondary bile acids and reduce lipopolysaccharide (LPS) endotoxins. A low dose of lactulose with food delayed gastric emptying and increased the whole gut transit times, attenuating the hyperglycemic response without adverse gastrointestinal events. These findings suggest that lactulose may have a role as a pharmacotherapeutic agent in the management and prevention of type 2 diabetes via actions on the gut microbiota.
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Yang J, Wei H, Zhou Y, Szeto CH, Li C, Lin Y, Coker OO, Lau HCH, Chan AWH, Sung JJY, Yu J. High-Fat Diet Promotes Colorectal Tumorigenesis Through Modulating Gut Microbiota and Metabolites. Gastroenterology 2022; 162:135-149.e2. [PMID: 34461052 DOI: 10.1053/j.gastro.2021.08.041] [Citation(s) in RCA: 191] [Impact Index Per Article: 95.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 08/05/2021] [Accepted: 08/21/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIMS Dietary fat intake is associated with increased risk of colorectal cancer (CRC). We examined the role of high-fat diet (HFD) in driving CRC through modulating gut microbiota and metabolites. METHODS HFD or control diet was fed to mice littermates in CRC mouse models of an azoxymethane (AOM) model and Apcmin/+ model, with or without antibiotics cocktail treatment. Germ-free mice for fecal microbiota transplantation were used for validation. Gut microbiota and metabolites were detected using metagenomic sequencing and high-performance liquid chromatography-mass spectrometry, respectively. Gut barrier function was determined using lipopolysaccharides level and transmission electron microscopy. RESULTS HFD promoted colorectal tumorigenesis in both AOM-treated mice and Apcmin/+ mice compared with control diet-fed mice. Gut microbiota depletion using antibiotics attenuated colon tumor formation in HFD-fed mice. A significant shift of gut microbiota composition with increased pathogenic bacteria Alistipessp.Marseille-P5997 and Alistipessp.5CPEGH6, and depleted probiotic Parabacteroides distasonis, along with impaired gut barrier function was exhibited in HFD-fed mice. Moreover, HFD-modulated gut microbiota promotes colorectal tumorigenesis in AOM-treated germ-free mice, indicating gut microbiota was essential in HFD-associated colorectal tumorigenesis. Gut metabolites alteration, including elevated lysophosphatidic acid, which was confirmed to promote CRC cell proliferation and impair cell junction, was also observed in HFD-fed mice. Moreover, transfer of stools from HFD-fed mice to germ-free mice without interference increased colonic cell proliferation, impaired gut barrier function, and induced oncogenic genes expression. CONCLUSIONS HFD drives colorectal tumorigenesis through inducing gut microbial dysbiosis, metabolomic dysregulation with elevated lysophosphatidic acid, and gut barrier dysfunction in mice.
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Affiliation(s)
- Jia Yang
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Hong Wei
- Department of Laboratory Animal Science, College of Basic Medical Sciences, Third Military Medical University, Chongqing, China; Department of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yunfei Zhou
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Chun-Ho Szeto
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Chuangen Li
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Yufeng Lin
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Olabisi O Coker
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Harry Cheuk Hay Lau
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Anthony W H Chan
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong, China
| | - Joseph J Y Sung
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Jun Yu
- Institute of Digestive Disease and The Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China.
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50
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Suskun C, Kilic O, Yilmaz Ciftdogan D, Guven S, Karbuz A, Ozkaya Parlakay A, Kara Y, Kacmaz E, Sahin A, Boga A, Kizmaz Isancli D, Gulhan B, Kanik-Yuksek S, Kiral E, Bozan G, Arslanoglu MO, Kizil MC, Dinleyici M, Us T, Varis A, Kaya M, Vandenplas Y, Dinleyici EC. Intestinal microbiota composition of children with infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and multisystem inflammatory syndrome (MIS-C). Eur J Pediatr 2022; 181:3175-3191. [PMID: 35585256 PMCID: PMC9117086 DOI: 10.1007/s00431-022-04494-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 02/07/2023]
Abstract
UNLABELLED Microbiota composition may play a role in the development, prognosis, or post-infection of COVID-19. There are studies evaluating the microbiota composition at the time of diagnosis and during the course of COVID-19, especially in adults, while studies in children are limited and no study available in children with multisystem inflammatory syndrome in children (MIS-C). This study was planned to compare intestinal microbiota composition in children diagnosed with MIS-C and acute COVID-19 infection with healthy children. In this prospective multicenter study, 25 children diagnosed with MIS-C, 20 with COVID-19 infection, and 19 healthy children were included. Intestinal microbiota composition was evaluated by 16 s rRNA gene sequencing. We observed changes of diversity, richness, and composition of intestinal microbiota in MIS-C cases compared to COVID-19 cases and in the healthy controls. The Shannon index was higher in the MIS-C group than the healthy controls (p < 0.01). At phylum level, in the MIS-C group, a significantly higher relative abundance of Bacteroidetes and lower abundance of Firmicutes was found compared to the control group. Intestinal microbiota composition changed in MIS-C cases compared to COVID-19 and healthy controls, and Faecalibacterium prausnitzii decreased; Bacteroides uniformis, Bacteroides plebeius, Clostridium ramosum, Eubacterium dolichum, Eggerthella lenta, Bacillus thermoamylovorans, Prevotella tannerae, and Bacteroides coprophilus were dominant in children with MIS-C. At species level, we observed decreased Faecalibacterium prausnitzii, and increased Eubacterium dolichum, Eggerthella lenta, and Bacillus thermoamylovorans in children with MIS-C and increased Bifidobacterium adolescentis and Dorea formicigenerasus in the COVID-19 group. Our study is the first to evaluate the microbiota composition in MIS-C cases. There is a substantial change in the composition of the gut microbiota: (1) reduction of F. prausnitzii in children with MIS-C and COVID-19; (2) an increase of Eggerthella lenta which is related with autoimmunity; and (3) the predominance of E. dolichum is associated with metabolic dysfunctions and obesity in children with MIS-C. CONCLUSIONS Alterations of the intestinal microbiota might be part of pathogenesis of predisposing factor for MIS-C. It would be beneficial to conduct more extensive studies on the cause-effect relationship of these changes in microbiota composition and their effects on long-term prognosis. WHAT IS KNOWN • Microbiota composition may play a role in the development, prognosis, or post-infection of COVID-19. • However, the number of studies on children is limited, and no study on multisystem inflammatory syndrome in children is currently available (MIS-C). WHAT IS NEW • In individuals with MIS-C, the composition of the gut microbiota changed dramatically. • Decreased Faecalibacterium prausnitzii have been observed, increased Eggerthella lenta, which was previously linked to autoimmunity, and predominance of Eubacterium dolichum which was linked to metabolic dysfunction and obesity.
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Affiliation(s)
- Cansu Suskun
- grid.164274.20000 0004 0596 2460Department of Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, TR-26040 Turkey
| | - Omer Kilic
- grid.164274.20000 0004 0596 2460Department of Pediatric Infectious Disease, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Dilek Yilmaz Ciftdogan
- grid.411795.f0000 0004 0454 9420Department of Pediatric Infectious Disease, Izmir Katip Celebi University Faculty of Medicine, Izmir, Turkey
| | - Sirin Guven
- grid.414850.c0000 0004 0642 8921Department of Pediatrics, Prof. Dr Ilhan Varank Training and Research Hospital, Istanbul, Turkey
| | - Adem Karbuz
- Department of Pediatric Infectious Disease, Dr. Cemil Tascioglu City Hospital, Istanbul, Turkey
| | - Aslinur Ozkaya Parlakay
- grid.512925.80000 0004 7592 6297Yildirim Beyazit University Faculty of Medicine Department of Pediatric Infectious Disease, Ankara City Hospital Department of Pediatric Infectious Disease, Ankara, Turkey
| | - Yalcın Kara
- grid.164274.20000 0004 0596 2460Department of Pediatric Infectious Disease, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Ebru Kacmaz
- grid.164274.20000 0004 0596 2460Pediatric Intensive Care Unit, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Aslihan Sahin
- grid.411795.f0000 0004 0454 9420Department of Pediatric Infectious Disease, Izmir Katip Celebi University Faculty of Medicine, Izmir, Turkey
| | - Aysun Boga
- grid.414850.c0000 0004 0642 8921Department of Pediatrics, Prof. Dr Ilhan Varank Training and Research Hospital, Istanbul, Turkey
| | - Didem Kizmaz Isancli
- Department of Pediatric Infectious Disease, Dr. Cemil Tascioglu City Hospital, Istanbul, Turkey
| | - Belgin Gulhan
- grid.512925.80000 0004 7592 6297Department of Pediatric Infectious Disease, Ankara City Hospital, Ankara, Turkey
| | - Saliha Kanik-Yuksek
- grid.512925.80000 0004 7592 6297Department of Pediatric Infectious Disease, Ankara City Hospital, Ankara, Turkey
| | - Eylem Kiral
- grid.164274.20000 0004 0596 2460Pediatric Intensive Care Unit, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Gurkan Bozan
- grid.164274.20000 0004 0596 2460Pediatric Intensive Care Unit, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Mehmet Ozgür Arslanoglu
- grid.164274.20000 0004 0596 2460Pediatric Intensive Care Unit, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Mahmut Can Kizil
- grid.164274.20000 0004 0596 2460Department of Pediatric Infectious Disease, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Meltem Dinleyici
- grid.164274.20000 0004 0596 2460Department of Social Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Tercan Us
- grid.164274.20000 0004 0596 2460Department of Microbiology, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | | | | | - Yvan Vandenplas
- grid.8767.e0000 0001 2290 8069KidZ Health Castle, UZ Brussels, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ener Cagri Dinleyici
- grid.164274.20000 0004 0596 2460Department of Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, TR-26040 Turkey
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