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Gao J, Lin D, Hou C, Shen Y, Li Y, Wu D, Xu Y. The clinical value of anal swabs for microbial detection in allogeneic haematopoietic stem cell transplantation. Transplant Cell Ther 2023; 29:619.e1-619.e9. [PMID: 37499872 DOI: 10.1016/j.jtct.2023.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
The intestinal microbiota plays critical roles in allogeneic hematopoietic stem cell transplantation (allo-HSCT). Rapid and effective microbial detection methods have important guiding value for the selection of intervention strategies for allo-HSCT recipients. We evaluated the application of the anal swab test before transplantation in allo-HSCT recipients. A total of 120 patients who underwent anal swab testing before allo-HSCT were retrospectively analyzed and divided into 3 groups: sterile (aseptic growth-negative), G+ (gram-positive bacterial colonization), and G- (gram-negative bacterial colonization). On 16S rRNA sequencing, gram-negative bacteria predominated in the G- group before and after transplantation. Compared with the sterile group, the percentage of natural killer cells was higher and the percentage of T cells was lower after transplantation in the G- group at 1 month after transplantation. The percentage of CD4+ and CD4+CD8+ T cells was lower and the percentage of regulatory T cells was higher in the G- group. The plasma levels of proinflammatory cytokines (TNF-α, IFN-γ, IL-6, and IL-17A) at 2 weeks post-transplantation were lower in the G- group than in the sterile group, as was the cumulative incidence of grade III-IV acute graft-versus-host disease (GVHD). Gram-negative bacterial colonization before allo-HSCT was associated with low rates of bloodstream infections within 100 days post-transplantation and cytomegalovirus reactivation at 100 days to 2 years post-transplantation. Moreover, patients in the G- group had a higher rate of 2-year GVHD-free, relapse-free survival compared with patients in the sterile group. The detection results using anal swabs were consistent with the gram-negative or gram-positive bacteria abundance of 16S rRNA sequencing results and associated with immune homeostasis and clinical outcomes after allo-HSCT. Anal swab testing may have potential advantages as a simple and effective method for microbial detection in allo-HSCT.
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Affiliation(s)
- Jun Gao
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China; Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Dandan Lin
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China; Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Chang Hou
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China; Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Ying Shen
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China; Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Yangzi Li
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China; Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Depei Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China; Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Yang Xu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China; Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.
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2
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Jiang Y, Wang L, Yang B, Ma G, Chen Z, Ma J, Chang X, Fang L, Wang Z. Bifidobacterium-derived membrane vesicles inhibit triple-negative breast cancer growth by inducing tumor cell apoptosis. Mol Biol Rep 2023; 50:7547-7556. [PMID: 37498438 DOI: 10.1007/s11033-023-08702-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/20/2023] [Indexed: 07/28/2023]
Abstract
BACKGROUND Bacterial outer membrane vesicles have gained increasing attention for its antitumor effect and application in drug delivery. However, the bacterial membrane vesicles (MVs) that are secreted by Gram-positive bacteria are rarely mentioned. Bifidobacterium has a certain anti-tumor effect, but there is a certain risk when injected into human body. Here we investigated the potential of Bifidobacterium-derived membrane vesicles (B-MVs) as therapeutic agents to treat triple-negative breast cancer. METHODS AND RESULTS Firstly, we discovered that Bifidobacterium can produce B-MVs and isolated them. In vivo, we found that B-MVs can inhibit tumor growth in mice and the mice were in good state. H&E staining displayed extensive apoptotic cells in tumor tissues. Western blotting and immunohistochemistry showed that B-MVs increased the expression of Bax, while decreased the expression of Bcl-2. These results suggested that B-MVs may induce apoptosis of tumor cells in vivo. Furthermore, to further confirm this phenomenon, we conducted experiments in vitro. Hoechst 33,258 staining assay, flow cytometry and western blotting also demonstrated B-MVs promoted cell apoptosis in vitro. CONCLUSIONS We speculate B-MVs may inhibit tumor growth by inducing tumor cell apoptosis in triple-negative breast cancer, which provided a new direction in the treatment of TNBC.
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Affiliation(s)
- Yongzhu Jiang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Lanxi Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Bangya Yang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Guanrong Ma
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Zhiqi Chen
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Jing Ma
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Xiulin Chang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Liaoqiong Fang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
- National Engineering Research Center of Ultrasound Medicine, Chongqing, 401121, China.
| | - Zhibiao Wang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
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3
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Ma T, Tang Y, Wang T, Yang Y, Zhang Y, Wang R, Zhang Y, Li Y, Wu M, Tang M, Hu X, Zou C, Ren Y, Liu H, Zhang Q, Li H, Wu M, Li J, Zhou X. Chronic pulmonary bacterial infection facilitates breast cancer lung metastasis by recruiting tumor-promoting MHCII hi neutrophils. Signal Transduct Target Ther 2023; 8:296. [PMID: 37563136 PMCID: PMC10415306 DOI: 10.1038/s41392-023-01542-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 08/12/2023] Open
Abstract
Breast cancer can metastasize to various organs, including the lungs. The immune microenvironment of the organs to be metastasized plays a crucial role in the metastasis of breast cancer. Infection with pathogens such as viruses and bacteria can alter the immune status of the lung. However, the effect of chronic inflammation caused by bacteria on the formation of a premetastatic niche within the lung is unclear, and the contribution of specific immune mediators to tumor metastasis also remains largely undetermined. Here, we used a mouse model revealing that chronic pulmonary bacterial infection augmented breast cancer lung metastasis by recruiting a distinct subtype of tumor-infiltrating MHCIIhi neutrophils into the lung, which exhibit cancer-promoting properties. Functionally, MHCIIhi neutrophils enhanced the lung metastasis of breast cancer in a cell-intrinsic manner. Furthermore, we identified CCL2 from lung tissues as an important environmental signal to recruit and maintain MHCIIhi neutrophils. Our findings clearly link bacterial-immune crosstalk to breast cancer lung metastasis and define MHCIIhi neutrophils as the principal mediator between chronic infection and tumor metastasis.
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Affiliation(s)
- Teng Ma
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Yu Tang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Taolin Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Yang Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Yige Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Ruihuan Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Yongxin Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Yi Li
- Department of Breast Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, 610072, Chengdu, China
| | - Mingbo Wu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Miao Tang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Xueli Hu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Chaoyu Zou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Yuan Ren
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Huan Liu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Qianhua Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Heyue Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Min Wu
- Drug Discovery Center, Wenzhou Institute, University of Chinese Academy of Sciences, 325001, Wenzhou, China.
| | - Jing Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| | - Xikun Zhou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China.
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4
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Galloway-Peña JR, Jobin C. Microbiota Influences on Hematopoiesis and Blood Cancers: New Horizons? Blood Cancer Discov 2023; 4:267-275. [PMID: 37052501 PMCID: PMC10320642 DOI: 10.1158/2643-3230.bcd-22-0172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 04/14/2023] Open
Abstract
Hematopoiesis governs the generation of immune cells through the differentiation of hematopoietic stem cells (HSC) into various progenitor cells, a process controlled by intrinsic and extrinsic factors. Among extrinsic factors influencing hematopoiesis is the microbiota, or the collection of microorganisms present in various body sites. The microbiota has a profound impact on host homeostasis by virtue of its ability to release various molecules and structural components, which promote normal organ function. In this review, we will discuss the role of microbiota in influencing hematopoiesis and how disrupting the microbiota/host network could lead to hematologic malignancies, as well as highlight important knowledge gaps to move this field of research forward. SIGNIFICANCE Microbiota dysfunction is associated with many pathologic conditions, including hematologic malignancies. In this review, we discuss the role of microbiota in influencing hematopoiesis and how disrupting the microbiota/host network could lead to hematologic malignancies. Understanding how the microbiota influences hematologic malignancies could have an important therapeutic impact for patients.
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Affiliation(s)
- Jessica R. Galloway-Peña
- Interdisciplinary Program in Genetics and Genomics, Texas A&M University, College Station, Texas
- Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas
| | - Christian Jobin
- Department of Medicine, University of Florida, Gainesville, Florida
- Department of Anatomy and Cell Biology, University of Florida, Gainesville, Florida
- Department of Infectious Diseases and Immunology, University of Florida, Gainesville, Florida
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5
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McMahon S, Sahasrabhojane P, Kim J, Franklin S, Chang CC, Jenq RR, Hillhouse AE, Shelburne SA, Galloway-Peña J. Contribution of the Oral and Gastrointestinal Microbiomes to Bloodstream Infections in Leukemia Patients. Microbiol Spectr 2023; 11:e0041523. [PMID: 37022173 PMCID: PMC10269818 DOI: 10.1128/spectrum.00415-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/20/2023] [Indexed: 04/07/2023] Open
Abstract
Bloodstream infections (BSIs) pose a significant mortality risk for acute myeloid leukemia (AML) patients. It has been previously reported that intestinal domination (>30% relative abundance [RA] attributed to a single taxon) with the infecting taxa often precedes BSI in stem cell transplant patients. Using 16S rRNA amplicon sequencing, we analyzed oral and stool samples from 63 AML patients with BSIs to determine the correlation between the infectious agent and microbiome composition. Whole-genome sequencing and antimicrobial susceptibilities were performed on all BSI isolates. Species-level detection of the infectious agent and presence of antibiotic resistance determinants in the stool (blaCTX-M-15, blaCTX-M-14, cfrA, and vanA) were confirmed via digital droplet PCR (ddPCR). Individuals with Escherichia coli (stool P < 0.001), Pseudomonas aeruginosa (oral P = 0.004, stool P < 0.001), and viridans group streptococci (VGS) (oral P = 0.001) bacteremia had a significantly higher relative abundance of those respective genera than other BSI patients, which appeared to be site specific. Although 78% of patients showed presence of the infectious genera in the stool and/or saliva, only 7 exhibited microbiome domination. ddPCR confirmed species specificity of the 16S data and detected the antibiotic resistance determinants found in the BSI isolates within concurrent stools. Although gastrointestinal (GI) domination by an infecting organism was not present at the time of most BSIs in AML, the pathogens, along with AMR elements, were detectable in the majority of patients. Thus, rapid genetic assessment of oral and stool samples for the presence of potential pathogens and AMR determinants might inform personalized therapeutic approaches in immunocompromised patients with suspected infection. IMPORTANCE A major cause of mortality in hematologic malignancy patients is BSI. Previous studies have demonstrated that bacterial translocation from the GI microbiome is a major source of BSIs and is often preceded by increased levels of the infectious taxa in the GI (>30% abundance by 16S rRNA sequencing). In this study, we sought to better understand how domination and abundance levels of the oral and gut microbiome relate to bacteremia occurrence in acute myeloid leukemia patients. We conclude that analyses of both oral and stool samples can help identify BSI and antimicrobial resistance determinants, thus potentially improving the timing and tailoring of antibiotic treatment strategies for high-risk patients.
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Affiliation(s)
- Stephanie McMahon
- Interdisciplinary Genetics Program, Texas A&M University, College Station, Texas, USA
| | - Pranoti Sahasrabhojane
- Department of Infectious Diseases, Infection Control, and Employee Health, MD Anderson Cancer Center, Houston, Texas, USA
| | - Jiwoong Kim
- Department of Bioinformatics and Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Samantha Franklin
- Interdisciplinary Genetics Program, Texas A&M University, College Station, Texas, USA
| | - Chia-Chi Chang
- Department of Genomic Medicine, MD Anderson Cancer Center, Houston, Texas, USA
| | - Robert R. Jenq
- Department of Genomic Medicine, MD Anderson Cancer Center, Houston, Texas, USA
| | - Andrew E. Hillhouse
- Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas, USA
- Texas A&M Institute for Genome Sciences & Society, Texas A&M University, College Station, Texas, USA
| | - Samuel A. Shelburne
- Department of Infectious Diseases, Infection Control, and Employee Health, MD Anderson Cancer Center, Houston, Texas, USA
- Department of Genomic Medicine, MD Anderson Cancer Center, Houston, Texas, USA
| | - Jessica Galloway-Peña
- Interdisciplinary Genetics Program, Texas A&M University, College Station, Texas, USA
- Department of Genomic Medicine, MD Anderson Cancer Center, Houston, Texas, USA
- Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas, USA
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6
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Rashidi A, Peled JU, Ebadi M, Rehman TU, Elhusseini H, Marcello LT, Halaweish H, Kaiser T, Holtan SG, Khoruts A, Weisdorf DJ, Staley C. Protective Effect of Intestinal Blautia Against Neutropenic Fever in Allogeneic Transplant Recipients. Clin Infect Dis 2022; 75:1912-1920. [PMID: 35435976 DOI: 10.1093/cid/ciac299] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Neutropenic fever (NF) occurs in >70% of hematopoietic cell transplant (HCT) recipients, without a documented cause in most cases. Antibiotics used to prevent and treat NF disrupt the gut microbiota; these disruptions predict a higher posttransplantation mortality rate. We hypothesized that specific features in the gut microbial community may mediate the risk of NF. METHODS We searched a large gut microbiota database in allogeneic HCT recipients (12 546 stool samples; 1278 patients) to find pairs with NF (cases) versus without NF (controls) on the same day relative to transplantation and with a stool sample on the previous day. A total of 179 such pairs were matched as to the underlying disease and graft source. Several other important clinical variables were similar between the groups. RESULTS The gut microbiota of cases on the day before NF occurrence had a lower abundance of Blautia than their matched controls on the same day after transplantation, suggesting a protective role for Blautia. Microbiota network analysis did not find any differences in community structure between the groups, suggesting a single-taxon effect. To identify putative mechanisms, we searched a gut microbiome and serum metabolome database of patients with acute leukemia receiving chemotherapy and identified 139 serum samples collected within 24 hours after a stool sample from the same patient. Greater Blautia abundances predicted higher levels of next-day citrulline, a biomarker of total enterocyte mass. CONCLUSIONS These findings support a model in which Blautia protects against NF by improving intestinal health. Therapeutic restoration of Blautia may help prevent NF, thus reducing antibiotic exposures and transplantation-related deaths.
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Affiliation(s)
- Armin Rashidi
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jonathan U Peled
- Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York, USA
| | - Maryam Ebadi
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Tauseef Ur Rehman
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Heba Elhusseini
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - LeeAnn T Marcello
- Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York, USA
| | - Hossam Halaweish
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Thomas Kaiser
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Shernan G Holtan
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Alexander Khoruts
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Daniel J Weisdorf
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Christopher Staley
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA.,BioTechnology Institute, University of Minnesota, St Paul, Minnesota, USA
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7
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He Y, Huang J, Li Q, Xia W, Zhang C, Liu Z, Xiao J, Yi Z, Deng H, Xiao Z, Hu J, Li H, Zu X, Quan C, Chen J. Gut Microbiota and Tumor Immune Escape: A New Perspective for Improving Tumor Immunotherapy. Cancers (Basel) 2022; 14:5317. [PMID: 36358736 PMCID: PMC9656981 DOI: 10.3390/cancers14215317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 10/15/2023] Open
Abstract
The gut microbiota is a large symbiotic community of anaerobic and facultative aerobic bacteria inhabiting the human intestinal tract, and its activities significantly affect human health. Increasing evidence has suggested that the gut microbiome plays an important role in tumor-related immune regulation. In the tumor microenvironment (TME), the gut microbiome and its metabolites affect the differentiation and function of immune cells regulating the immune evasion of tumors. The gut microbiome can indirectly influence individual responses to various classical tumor immunotherapies, including immune checkpoint inhibitor therapy and adoptive immunotherapy. Microbial regulation through antibiotics, prebiotics, and fecal microbiota transplantation (FMT) optimize the composition of the gut microbiome, improving the efficacy of immunotherapy and bringing a new perspective and hope for tumor treatment.
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Affiliation(s)
- Yunbo He
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jinliang Huang
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Qiaorong Li
- Department of Ultrasound, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Weiping Xia
- Department of Intensive Care Medicine, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Chunyu Zhang
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zhi Liu
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jiatong Xiao
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zhenglin Yi
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Hao Deng
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zicheng Xiao
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jiao Hu
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Huihuang Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Xiongbing Zu
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Chao Quan
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jinbo Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
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8
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Jin L, Zhang Z, Tan X, Wang Z, Tang B, Wang Z, Li M, Mi T, Shen L, Long C, Wei G, He D. Antitumor effect of Escherichia coli-derived outer membrane vesicles on neuroblastoma in vitro and in vivo. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1301-1313. [PMID: 36148954 PMCID: PMC9827812 DOI: 10.3724/abbs.2022127] [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] [Indexed: 12/29/2022] Open
Abstract
Bacterial outer membrane vesicles (OMVs) are spherical microbubbles that contain biological content and are produced by gram-negative bacteria. The use of OMVs as adjuvants for cancer immunotherapy or as drug carriers for targeted therapies has attracted the interest of many scholars. However, it is unclear whether OMVs can exert direct antitumor effects and whether OMVs can inhibit pediatric tumors. Here, we explore the potential of Escherichia coli-derived OMVs to directly suppress neuroblastoma. Our results demonstrate the antitumor effects of OMVs in vitro and in vivo, and no serious adverse reactions were observed. OMV uptake into the cytoplasm and nucleus directly decreases cell stemness, DNA damage, apoptosis and cell cycle arrest, which may be the mechanisms by which OMVs suppress tumors. Our results demonstrate the potential of bacterial OMVs to be used as antitumor adjuvant therapies, increasing the number of candidates for the development of cancer therapies in the future. More relevant studies are urgently needed to demonstrate the efficacy and safety of OMVs.
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Affiliation(s)
- Liming Jin
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Zhaoxia Zhang
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Xiaojun Tan
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Zhaoying Wang
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Bo Tang
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Zhang Wang
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Mujie Li
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Tao Mi
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Lianju Shen
- Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Chunlan Long
- Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Guanghui Wei
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China
| | - Dawei He
- Department of UrologyChildren’s Hospital of Chongqing Medical UniversityChongqing400014China,Chongqing Key Laboratory of Children Urogenital Development and Tissue EngineeringChongqing400014China,China International Science and Technology Cooperation base of Child development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; Chongqing Key Laboratory of Pediatrics; Children’s Hospital of Chongqing Medical UniversityChongqing400014China,Correspondence address. Tel: +86-23-63326521;
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9
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Rashidi A, Ebadi M, Rehman TU, Elhusseini H, Halaweish H, Kaiser T, Holtan SG, Khoruts A, Weisdorf DJ, Staley C. Compilation of longitudinal gut microbiome, serum metabolome, and clinical data in acute myeloid leukemia. Sci Data 2022; 9:468. [PMID: 35918343 PMCID: PMC9346123 DOI: 10.1038/s41597-022-01600-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 07/27/2022] [Indexed: 12/03/2022] Open
Abstract
Induction chemotherapy for patients with acute myeloid leukemia (AML) is a unique clinical scenario. These patients spend several weeks in the hospital, receiving multiple antibiotics, experiencing gastrointestinal mucosal damage, and suffering severe impairments in their immune system and nutrition. These factors cause major disruptions to the gut microbiota to a level rarely seen in other clinical conditions. Thus, the study of the gut microbiota in these patients can reveal novel aspects of microbiota-host relationships. When combined with the circulating metabolome, such studies could shed light on gut microbiota contribution to circulating metabolites. Collectively, gut microbiota and circulating metabolome are known to regulate host physiology. We have previously deposited amplicon sequences from 566 fecal samples from 68 AML patients. Here, we provide sample-level details and a link, using de-identified patient IDs, to additional data including serum metabolomics (260 samples from 36 patients) and clinical metadata. The detailed information provided enables comprehensive multi-omics analysis. We validate the technical quality of these data through 3 examples and demonstrate a method for integrated analysis.
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Affiliation(s)
- Armin Rashidi
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA.
| | - Maryam Ebadi
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Tauseef Ur Rehman
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Heba Elhusseini
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Hossam Halaweish
- Department of Surgery, University of Minnesota, Minneapolis, MN, USA
| | - Thomas Kaiser
- Department of Surgery, University of Minnesota, Minneapolis, MN, USA
| | - Shernan G Holtan
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Alexander Khoruts
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Daniel J Weisdorf
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
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10
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Loss of microbiota-derived protective metabolites after neutropenic fever. Sci Rep 2022; 12:6244. [PMID: 35428797 PMCID: PMC9012881 DOI: 10.1038/s41598-022-10282-0] [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: 12/29/2021] [Accepted: 04/05/2022] [Indexed: 11/08/2022] Open
Abstract
Neutropenic fever (NF) is a common complication of chemotherapy in patients with cancer which often prolongs hospitalization and worsens the quality of life. Although an empiric antimicrobial approach is used to prevent and treat NF, a clear etiology cannot be found in most cases. Emerging data suggest an altered microbiota-host crosstalk leading to NF. We profiled the serum metabolome and gut microbiome in longitudinal samples before and after NF in patients with acute myeloid leukemia, a prototype setting with a high incidence of NF. We identified a circulating metabolomic shift after NF, with a minimal signature containing 18 metabolites, 13 of which were associated with the gut microbiota. Among these metabolites were markers of intestinal epithelial health and bacterial metabolites of dietary tryptophan with known anti-inflammatory and gut-protective effects. The level of these metabolites decreased after NF, in parallel with biologically consistent changes in the abundance of mucolytic and butyrogenic bacteria with known effects on the intestinal epithelium. Together, our findings indicate a metabolomic shift with NF which is primarily characterized by a loss of microbiota-derived protective metabolites rather than an increase in detrimental metabolites. This analysis suggests that the current antimicrobial approach to NF may need a revision to protect the commensal microbiota.
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11
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Bouchoucha SL, Sangojoyo JL, Kilpatrick M, Hutchinson A. Environmental cleaning and infection prevention and control: The role of Patient Service Assistants. Infect Dis Health 2022; 27:136-141. [PMID: 35379595 DOI: 10.1016/j.idh.2022.03.002] [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: 10/27/2021] [Revised: 02/22/2022] [Accepted: 03/06/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND In Australia, Patient Service Assistants are an integral part of all health care settings, yet there is a paucity of studies considering their understandings and perceptions of their role about infection prevention and control. The aim in this study was to explore haematology Personal Service Assistants' experience, understanding and perceptions of their role in improving patient safety through environmental cleaning. METHODS A qualitative exploratory descriptive design was utilised to collect data from cleaning staff via focus groups. Three semi-structured focus groups were conducted. RESULTS Seven Patient Service Assistants participated in the study out of 11 employed. Two key themes emerged from the thematic analysis: (1) Playing a major role in Infection Prevention and Control, and (2) prioritising good interpersonal relationships over promoting infection prevention and control. Patient Service Assistants emphasised the importance of their involvement in keeping the ward clean, including patients' rooms and surroundings, to prevent cross infection. Most participants underlined the dilemmas they faced when visitors and/or informal cleaning employees or casual ward staff did not adhere to ward infection prevention and control norms. CONCLUSION Patient Service Assistants were employing key infection prevention and control principles in their ward cleaning routine, with the aim of achieving a safer patient environment although they were reluctant to challenge observed practice deviations. The role of Patient Service Assistants highlights the widely held misconception that patient safety is solely dependent on healthcare workers.
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Affiliation(s)
- Stéphane L Bouchoucha
- Deakin University Geelong, Australia, School of Nursing and Midwifery, Centre for Quality and Patient Safety Research in the Institute for Health Transformation, Australia.
| | - Jennie Livia Sangojoyo
- Deakin University Geelong, Australia, School of Nursing and Midwifery, Centre for Quality and Patient Safety Research in the Institute for Health Transformation, Australia; Olivia Newton-John Centre, Austin Health, Heidelberg, Melbourne, Australia
| | - Mataya Kilpatrick
- Deakin University Geelong, Australia, School of Nursing and Midwifery, Centre for Quality and Patient Safety Research in the Institute for Health Transformation, Australia
| | - Ana Hutchinson
- Deakin University Geelong, Australia, School of Nursing and Midwifery, Centre for Quality and Patient Safety Research in the Institute for Health Transformation, Australia; Deakin University Geelong, Australia, Centre for Quality and Patient Safety Research in the Institute for Health Transformation. Epworth Healthcare Partnership, Australia. https://twitter.com/AnaHDeakinQPS
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12
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van de Velde ME, El Hassani SEM, Kaspers GJL, Broertjes J, Benninga MA, de Boer NKH, Budding AE, de Meij TGJ. Prediction of Bloodstream Infection in Pediatric Acute Leukemia by Microbiota and Volatile Organic Compounds Analysis. J Pediatr Hematol Oncol 2022; 44:e152-e159. [PMID: 34133377 DOI: 10.1097/mph.0000000000002210] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 03/28/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Bloodstream infections (BSIs) cause treatment-related mortality in pediatric acute leukemia. We explored the potential of intestinal microbiota and fecal volatile organic compounds (VOCs) analyses to predict BSI. METHODS In this case-control study, fecal samples of pediatric acute leukemia patients were collected. Microbiota composition and fecal VOC profiles of BSI cases and matched non-BSI controls were compared. RESULTS In total, 6 patients were included, of which 1 developed BSI and 1 neutropenic fever. Both showed reduced microbial diversity and stability of Bacteroidetes. In the BSI case, Pantoea was identified 15 days before BSI. Significant differences in fecal VOC profiles were measured between the case and controls. CONCLUSION Microbiota and fecal VOC could serve as biomarkers to predict BSI in pediatric leukemia.
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Affiliation(s)
| | - Sofia El Manouni El Hassani
- Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam
- Department of Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam
| | - Gert Jan L Kaspers
- Departments of Pediatric Oncology
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Jorrit Broertjes
- Department of Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam
| | - Marc A Benninga
- Department of Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam
| | - Nanne K H de Boer
- Department of Gastroenterology and Hepatology, Amsterdam UMC, Vrije Universiteit Amsterdam, AG&M Research Institute
| | | | - Tim G J de Meij
- Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam
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13
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Gut microbiome in pediatric acute leukemia: from predisposition to cure. Blood Adv 2021; 5:4619-4629. [PMID: 34610115 PMCID: PMC8759140 DOI: 10.1182/bloodadvances.2021005129] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/25/2021] [Indexed: 01/02/2023] Open
Abstract
The gut microbiome (GM) has emerged as a key factor in the genesis and progression of many diseases. The intestinal bacterial composition also influences treatment-related side effects and even the efficacy of oncological therapies. Acute leukemia (AL) is the most common cancer among children and the most frequent cause of cancer-related death during childhood. Outcomes have improved considerably over the past 4 decades, with the current long-term survival for acute lymphoblastic leukemia being ∼90%. However, several acute toxicities and long-term sequelae are associated with the multimodal therapy protocols applied in these patients. Specific GM configurations could contribute to the multistep developmental hypothesis for leukemogenesis. Moreover, GM alterations occur during the AL therapeutic course and are associated with treatment-related complications, especially during hematopoietic stem cell transplantation. The GM perturbation could last even after the removal of microbiome-modifying factors, like antibiotics, chemotherapeutic drugs, or alloimmune reactions, contributing to several health-related issues in AL survivors. The purpose of this article is to provide a comprehensive review of the chronological changes of GM in children with AL, from predisposition to cure. The underpinning biological processes and the potential interventions to modulate the GM toward a potentially health-promoting configuration are also highlighted.
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14
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Papanicolas LE, Sims SK, Taylor SL, Miller SJ, Karapetis CS, Wesselingh SL, Gordon DL, Rogers GB. Conventional myelosuppressive chemotherapy for non-haematological malignancy disrupts the intestinal microbiome. BMC Cancer 2021; 21:591. [PMID: 34022842 PMCID: PMC8141218 DOI: 10.1186/s12885-021-08296-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/05/2021] [Indexed: 01/04/2023] Open
Abstract
Background The gut microbiota influences many aspects of host physiology, including immune regulation, and is predictive of outcomes in cancer patients. However, whether conventional myelosuppressive chemotherapy affects the gut microbiota in humans with non-haematological malignancy, independent of antibiotic exposure, is unknown. Methods Faecal samples from 19 participants with non-haematological malignancy, who were receiving conventional chemotherapy regimens but not antibiotics, were examined prior to chemotherapy, 7–12 days after chemotherapy, and at the end of the first cycle of treatment. Gut microbiota diversity and composition was determined by 16S rRNA gene amplicon sequencing. Results Compared to pre-chemotherapy samples, samples collected 7–12 days following chemotherapy exhibited increased richness (mean 120 observed species ± SD 38 vs 134 ± 40; p = 0.007) and diversity (Shannon diversity: mean 6.4 ± 0.43 vs 6.6 ± 0.41; p = 0.02). Composition was significantly altered, with a significant decrease in the relative abundance of gram-positive bacteria in the phylum Firmicutes (pre-chemotherapy median relative abundance [IQR] 0.78 [0.11] vs 0.75 [0.11]; p = 0.003), and an increase in the relative abundance of gram-negative bacteria (Bacteroidetes: median [IQR] 0.16 [0.13] vs 0.21 [0.13]; p = 0.01 and Proteobacteria: 0.015 [0.018] vs 0.03 [0.03]; p = 0.02). Differences in microbiota characteristics from baseline were no longer significant at the end of the chemotherapy cycle. Conclusions Conventional chemotherapy results in significant changes in gut microbiota characteristics during the period of predicted myelosuppression post-chemotherapy. Further study is indicated to link microbiome changes during chemotherapy to clinical outcomes. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08296-4.
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Affiliation(s)
- Lito E Papanicolas
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia. .,South Australian Health and Medical Research Institute Microbiome Research Laboratory, College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, 5042, Australia.
| | - Sarah K Sims
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Steven L Taylor
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia.,South Australian Health and Medical Research Institute Microbiome Research Laboratory, College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, 5042, Australia
| | - Sophie J Miller
- South Australian Health and Medical Research Institute Microbiome Research Laboratory, College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, 5042, Australia
| | - Christos S Karapetis
- Flinders Centre for Innovation in Cancer, Flinders University, Bedford Park, South Australia, Australia.,Department of Medical Oncology, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Steve L Wesselingh
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - David L Gordon
- Microbiology and Infectious Diseases, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Geraint B Rogers
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia.,South Australian Health and Medical Research Institute Microbiome Research Laboratory, College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, 5042, Australia
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15
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Huang Y, Chen W, Chung J, Yin J, Yoon J. Recent progress in fluorescent probes for bacteria. Chem Soc Rev 2021; 50:7725-7744. [PMID: 34013918 DOI: 10.1039/d0cs01340d] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Food fermentation, antibiotics, and pollutant degradation are closely related to bacteria. Bacteria play an irreplaceable role in life. However, some bacteria seriously threaten human health and cause large-scale infectious diseases. Therefore, there is a pressing need to develop strategies to accurately monitor bacteria. Technology based on molecular probes and fluorescence imaging is noninvasive, results in little damage, and has high specificity and sensitivity, so it has been widely applied in the detection of bacteria. In this review, we summarize the recent progress in bacterial detection using fluorescence. In particular, we generalize the mechanisms commonly used to design organic fluorescent probes for detecting and imaging bacteria. Moreover, a perspective regarding fluorescent probes for bacterial detection is discussed.
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Affiliation(s)
- Yurou Huang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of education, Hubei International Scientific and technological cooperation Base of Pesticide and Green Synthesis, International Joint research center for Intelligent Biosensing Technology and Health, College of chemistry, Central China Normal University, Wuhan 430079, P. R. China and Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, P. R. China
| | - Weijie Chen
- Key Laboratory of Pesticide and Chemical Biology, Ministry of education, Hubei International Scientific and technological cooperation Base of Pesticide and Green Synthesis, International Joint research center for Intelligent Biosensing Technology and Health, College of chemistry, Central China Normal University, Wuhan 430079, P. R. China and Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, P. R. China
| | - Jeewon Chung
- Department of Chemistry and Nano Science, Ewha Womans University, 11-1 Daehyon-Dong, Sodaemun-Ku, Seoul 120-750, Korea.
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of education, Hubei International Scientific and technological cooperation Base of Pesticide and Green Synthesis, International Joint research center for Intelligent Biosensing Technology and Health, College of chemistry, Central China Normal University, Wuhan 430079, P. R. China and Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, P. R. China
| | - Juyoung Yoon
- Department of Chemistry and Nano Science, Ewha Womans University, 11-1 Daehyon-Dong, Sodaemun-Ku, Seoul 120-750, Korea.
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16
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Prasad P, Gupta S. Nanobioconjugates: Weapons against Antibacterial Resistance. ACS APPLIED BIO MATERIALS 2020; 3:8271-8285. [DOI: 10.1021/acsabm.0c01107] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Puja Prasad
- Deptartment of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Shalini Gupta
- Deptartment of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
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17
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Galloway-Peña JR, Shi Y, Peterson CB, Sahasrabhojane P, Gopalakrishnan V, Brumlow CE, Daver NG, Alfayez M, Boddu PC, Khan MAW, Wargo JA, Do KA, Jenq RR, Kontoyiannis DP, Shelburne SA. Gut Microbiome Signatures Are Predictive of Infectious Risk Following Induction Therapy for Acute Myeloid Leukemia. Clin Infect Dis 2020; 71:63-71. [PMID: 31436833 PMCID: PMC7312220 DOI: 10.1093/cid/ciz777] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 08/20/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The majority of studies that provide insights into the influence of the microbiome on the health of hematologic malignancy patients have concentrated on the transplant setting. Here, we sought to assess the predictive capacity of the gastrointestinal microbiome and its relationship to infectious outcomes in patients with acute myeloid leukemia (AML). METHODS 16s rRNA-based analysis was performed on oral swabs and stool samples obtained biweekly from baseline until neutrophil recovery following induction chemotherapy (IC) in 97 AML patients. Microbiome characteristics were correlated with clinical outcomes both during and after IC completion. RESULTS At the start of IC, higher stool Shannon diversity (hazard ratio [HR], 0.36; 95% confidence interval [CI], .18-.74) and higher relative abundance of Porphyromonadaceae (HR, 0.36; 95% CI, .18-.73) were associated with increased probability of remaining infection-free during neutropenia. A baseline stool Shannon diversity cutoff of <2 had optimal operating characteristics for predicting infectious complications during neutropenia. Although 56 patients received therapy >72 hours with a carbapenem, none of the patients had an infection with an extended spectrum β-lactamase-producing organism. Patients who received carbapenems for >72 hours had significantly lower α-diversity at neutrophil recovery (P = .001) and were approximately 4 times more likely to have infection in the 90 days following neutrophil recovery (HR, 4.55; 95% CI, 1.73-11.93). CONCLUSIONS Our results suggest that gut microbiome evaluation could assist with infectious risk stratification and that improved targeting of antibiotic administration during IC could decrease subsequent infectious complications in AML patients.Baseline microbiome diversity is a strong independent predictor of infection during acute myeloid leukemia induction chemotherapy (IC) among clinical and microbiome covariates. Higher baseline levels of Porphyromonadaceae appear protective against infection, while carbapenem use is associated with consequences to the microbiome and infection susceptibility post-IC.
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Affiliation(s)
- Jessica R Galloway-Peña
- Department of Genomic Medicine, Houston, Texas, USA
- Department of Infectious Disease, Infection Control, and Employee Health, Houston, Texas, USA
| | - Yushu Shi
- Department of Biostatistics, Houston, Texas, USA
| | | | - Pranoti Sahasrabhojane
- Department of Infectious Disease, Infection Control, and Employee Health, Houston, Texas, USA
| | | | - Chelcy E Brumlow
- Department of Infectious Disease, Infection Control, and Employee Health, Houston, Texas, USA
| | - Naval G Daver
- Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Mansour Alfayez
- Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Prajwal C Boddu
- Department of Hematology-Oncology, Yale University School of Medicine, New Haven, Connecticut, USA
| | | | - Jennifer A Wargo
- Department of Genomic Medicine, Houston, Texas, USA
- Department of Surgical Oncology, Houston, Texas, USA
| | - Kim-Anh Do
- Department of Biostatistics, Houston, Texas, USA
| | - Robert R Jenq
- Department of Genomic Medicine, Houston, Texas, USA
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Samuel A Shelburne
- Department of Genomic Medicine, Houston, Texas, USA
- Department of Infectious Disease, Infection Control, and Employee Health, Houston, Texas, USA
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18
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Galloway-Peña JR, Kontoyiannis DP. The gut mycobiome: The overlooked constituent of clinical outcomes and treatment complications in patients with cancer and other immunosuppressive conditions. PLoS Pathog 2020; 16:e1008353. [PMID: 32240277 PMCID: PMC7117661 DOI: 10.1371/journal.ppat.1008353] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Jessica R. Galloway-Peña
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
- * E-mail: (JRG-P); (DPK)
| | - Dimitrios P. Kontoyiannis
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
- * E-mail: (JRG-P); (DPK)
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19
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Nogueira F, Sharghi S, Kuchler K, Lion T. Pathogenetic Impact of Bacterial-Fungal Interactions. Microorganisms 2019; 7:microorganisms7100459. [PMID: 31623187 PMCID: PMC6843596 DOI: 10.3390/microorganisms7100459] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/20/2019] [Accepted: 10/15/2019] [Indexed: 12/17/2022] Open
Abstract
Polymicrobial infections are of paramount importance because of the potential severity of clinical manifestations, often associated with increased resistance to antimicrobial treatment. The intricate interplay with the host and the immune system, and the impact on microbiome imbalance, are of importance in this context. The equilibrium of microbiota in the human host is critical for preventing potential dysbiosis and the ensuing development of disease. Bacteria and fungi can communicate via signaling molecules, and produce metabolites and toxins capable of modulating the immune response or altering the efficacy of treatment. Most of the bacterial–fungal interactions described to date focus on the human fungal pathogen Candida albicans and different bacteria. In this review, we discuss more than twenty different bacterial–fungal interactions involving several clinically important human pathogens. The interactions, which can be synergistic or antagonistic, both in vitro and in vivo, are addressed with a focus on the quorum-sensing molecules produced, the response of the immune system, and the impact on clinical outcome.
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Affiliation(s)
- Filomena Nogueira
- CCRI-St. Anna Children's Cancer Research Institute, Vienna 1090, Austria.
- Labdia-Labordiagnostik GmbH, Vienna 1090, Austria.
- Center of Medical Biochemistry, Max Perutz Labs, Campus Vienna Biocenter, Medical University of Vienna, Vienna 1030, Austria.
| | - Shirin Sharghi
- CCRI-St. Anna Children's Cancer Research Institute, Vienna 1090, Austria.
- Labdia-Labordiagnostik GmbH, Vienna 1090, Austria.
- Center of Medical Biochemistry, Max Perutz Labs, Campus Vienna Biocenter, Medical University of Vienna, Vienna 1030, Austria.
| | - Karl Kuchler
- Center of Medical Biochemistry, Max Perutz Labs, Campus Vienna Biocenter, Medical University of Vienna, Vienna 1030, Austria.
| | - Thomas Lion
- CCRI-St. Anna Children's Cancer Research Institute, Vienna 1090, Austria.
- Labdia-Labordiagnostik GmbH, Vienna 1090, Austria.
- Department of Pediatrics, Medical University of Vienna, Vienna 1090, Austria.
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20
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Ramamoorthy V, Rubens M, Appunni S, Saxena A, McGranaghan P, Veledar E, Viamonte-Ros A, Shehadeh N, Kaiser A, Kotecha R. Lack of Efficacy of the Neutropenic Diet in Decreasing Infections among Cancer Patients: A Systematic Review. Nutr Cancer 2019; 72:1125-1134. [PMID: 31608705 DOI: 10.1080/01635581.2019.1675723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The objective of this systematic review is to evaluate the existing evidence supporting the effectiveness of the neutropenic diet in decreasing infection and mortality among cancer patients. We searched MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials and Scopus for relevant articles published from database inception until March 2019. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines were followed for this review. Individual studies were evaluated using the Oxford Center for Evidence-Based Medicine guidelines. A total of 473 articles were identified and 11 articles were selected after assessing eligibility. Our review showed that the neutropenic diet does not decrease infection rates or mortality among cancer patients. Currently, there is no uniform definition for the neutropenic diet across different institutions. For example, some institutions follow general food safety practices while others avoid foods that increase exposure to microbes and bacteria, and some follow both. Given these differences in practice regarding what constitutes a neutropenic diet, it is advisable that safe food handling and preparation practices recommended by the Food and Drug Administration be uniformly followed for neutropenic patients.
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Affiliation(s)
| | - Muni Rubens
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA
| | - Sandeep Appunni
- Department of Biochemistry, Calicut Medical College, Calicut, India
| | - Anshul Saxena
- Center for Advanced Analytics, Baptist Health South Florida, Miami, Florida, USA.,Department of Radiation Oncology, Florida International University, Miami, Florida, USA
| | - Peter McGranaghan
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA
| | - Emir Veledar
- Center for Advanced Analytics, Baptist Health South Florida, Miami, Florida, USA.,Department of Radiation Oncology, Florida International University, Miami, Florida, USA
| | - Ana Viamonte-Ros
- Center for Advanced Analytics, Baptist Health South Florida, Miami, Florida, USA.,Department of Radiation Oncology, Florida International University, Miami, Florida, USA
| | - Nancy Shehadeh
- Department of Business, Florida Atlantic University, Boca Raton, Florida, USA
| | - Adeel Kaiser
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Rupesh Kotecha
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.,Department of Radiation Oncology, Florida International University, Miami, Florida, USA
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21
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Critical Role of B Cells in Toll-Like Receptor 7-Mediated Protection against Listeria monocytogenes Infection. Infect Immun 2019; 87:IAI.00742-19. [PMID: 31591164 DOI: 10.1128/iai.00742-19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 09/27/2019] [Indexed: 11/20/2022] Open
Abstract
Toll-like receptors (TLR) trigger the immune system to mount a rapid innate response capable of protecting the host from a wide variety of bacterial and viral pathogens. There is interest in harnessing TLR agonists to reduce the susceptibility of at-risk populations to infection. However, the widespread prophylactic use of TLR agonists has been compromised by the need to administer them by parenteral injection. An exception is the TLR7/8 agonist R848, which can boost gastrointestinal and systemic immunity when administered orally. This work examines the effect of R848 on host susceptibility to Listeria monocytogenes in a murine challenge model and describes the underlying mechanisms. Results show that prophylactic administration of R848 significantly reduces susceptibility to infection of BALB/c mice, an effect that lasts 1 week. Oral R848 directly stimulated B cells to produce cytokines and Ig. In the absence of B cells, R848-mediated protection was lost. These findings support the use of oral R848 to reduce the susceptibility of at-risk individuals to infection and identify the critical role of B cells in TLR7-mediated resistance to bacterial infection.
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22
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Galloway-Peña JR, Jenq RR. The only thing that stops a bad microbiome, is a good microbiome. Haematologica 2019; 104:1511-1513. [PMID: 31366464 PMCID: PMC6669152 DOI: 10.3324/haematol.2019.222430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Jessica R. Galloway-Peña
- Department of Genomic Medicine
- Department of Infectious Diseases, Infection Control and Employee Health
| | - Robert R. Jenq
- Department of Genomic Medicine
- Department of Stem Cell Transplantation, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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23
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Zeineldin M, Lowe J, Aldridge B. Contribution of the Mucosal Microbiota to Bovine Respiratory Health. Trends Microbiol 2019; 27:753-770. [PMID: 31104970 DOI: 10.1016/j.tim.2019.04.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/09/2019] [Accepted: 04/18/2019] [Indexed: 02/06/2023]
Abstract
Recognizing the respiratory tract as a dynamic and complex ecosystem has enhanced our understanding of the pathophysiology of bovine respiratory disease (BRD). There is widespread evidence showing that disease-predisposing factors often disrupt the respiratory microbial ecosystem, provoking atypical colonization patterns and a progressive dysbiosis. The ecological factors that shape the respiratory microbiota, and the influence of these complex communities on bovine respiratory health, are a rich area for research exploration. Here, we review the current status of understanding of the bovine respiratory microbiota, the factors that influence its development and stability, its role in maintaining mucosal homeostasis, and ultimately its contribution to bovine health and disease. Finally, we explore the limitations of current research approaches to the microbiome and discuss potential directions for future research that can help us better understand the role of the respiratory microbiota in the health, welfare, and productivity of livestock.
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Affiliation(s)
- Mohamed Zeineldin
- Integrated Food Animal Management Systems, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA; Department of Animal Medicine, College of Veterinary Medicine, Benha University, Egypt
| | - James Lowe
- Integrated Food Animal Management Systems, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Brian Aldridge
- Integrated Food Animal Management Systems, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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24
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Galloway-Peña JR, Peterson CB, Malik F, Sahasrabhojane PV, Shah DP, Brumlow CE, Carlin LG, Chemaly RF, Im JS, Rondon G, Felix E, Veillon L, Lorenzi PL, Alousi AM, Jenq RR, Kontoyiannis DP, Shpall EJ, Shelburne SA, Okhuysen PC. Fecal Microbiome, Metabolites, and Stem Cell Transplant Outcomes: A Single-Center Pilot Study. Open Forum Infect Dis 2019; 6:ofz173. [PMID: 31065565 PMCID: PMC6499899 DOI: 10.1093/ofid/ofz173] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/31/2019] [Indexed: 12/13/2022] Open
Abstract
Background Accumulating evidence suggests that the intestinal microbiome may dramatically affect the outcomes of hematopoietic stem cell transplant (HSCT) recipients. Providing 16S ribosomal RNA based microbiome characterization in a clinically actionable time frame is currently problematic. Thus, determination of microbial metabolites as surrogates for microbiome composition could offer practical biomarkers. Methods Longitudinal fecal specimens (n = 451) were collected from 44 patients before HSCT through 100 days after transplantation, as well as 1-time samples from healthy volunteers (n = 18) as controls. Microbiota composition was determined using 16S ribosomal RNA V4 sequencing. Fecal indole and butyrate levels were determined using liquid chromatography tandem mass spectrometry. Results Among HSCT recipients, both fecal indole and butyrate levels correlated with the Shannon diversity index at baseline (P = .02 and P = .002, respectively) and directly after transplantation (P = .006 and P < .001, respectively). Samples with high butyrate levels were enriched for Clostridiales, whereas samples containing high indole were also enriched for Bacteroidales. A lower Shannon diversity index at the time of engraftment was associated with increased incidence of acute intestinal graft-vs-host disease (iGVHD) (P = .02) and transplant-related deaths (P = .03). Although fecal metabolites were not associated with acute iGVHD or overall survival, patients contracting bloodstream infections within 30 days after transplantation had significantly lower levels of fecal butyrate (P = .03). Conclusions Longitudinal analysis of fecal microbiome and metabolites after HSCT identified butyrate and indole as potential surrogate markers for microbial diversity and specific taxa. Further studies are needed to ascertain whether fecal metabolites can be used as biomarkers of acute iGVHD or bacteremia after HSCT.
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Affiliation(s)
- Jessica R Galloway-Peña
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston.,Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston
| | - Christine B Peterson
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston
| | - Farida Malik
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston
| | - Pranoti V Sahasrabhojane
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston
| | - Dimpy P Shah
- Department of Epidemiology and Biostatistics, Long School of Medicine and Mays Cancer Center, University of Texas Health Science Center at San Antonio
| | - Chelcy E Brumlow
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston
| | - Lily G Carlin
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston
| | - Roy F Chemaly
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston
| | - Jin Seon Im
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston
| | - Gabriela Rondon
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston
| | - Edd Felix
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston
| | - Lucas Veillon
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston
| | - Philip L Lorenzi
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston
| | - Amin M Alousi
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston
| | - Robert R Jenq
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston.,Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston
| | - Dimitrios P Kontoyiannis
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston
| | - Elizabeth J Shpall
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston
| | - Samuel A Shelburne
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston.,Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston
| | - Pablo C Okhuysen
- Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas MD Anderson Cancer Center, Houston
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25
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Klebsiella pneumoniae prevents spore germination and hyphal development of Aspergillus species. Sci Rep 2019; 9:218. [PMID: 30659217 PMCID: PMC6338788 DOI: 10.1038/s41598-018-36524-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 11/20/2018] [Indexed: 12/29/2022] Open
Abstract
Different bacteria and fungi live as commensal organisms as part of the human microbiota, but shifts to a pathogenic state potentially leading to septic infections commonly occur in immunocompromised individuals. Several studies have reported synergistic or antagonistic interactions between individual bacteria and fungi which might be of clinical relevance. Here, we present first evidence for the interaction between Klebsiella pneumoniae and several Aspergillus species including A. fumigatus, A. terreus, A. niger and A. flavus which cohabit in the lungs and the intestines. Microbiological and molecular methods were employed to investigate the interaction in vitro, and the results indicate that Klebsiella pneumoniae is able to prevent Aspergillus spp. spore germination and hyphal development. The inhibitory effect is reversible, as demonstrated by growth recovery of Aspergillus spp. upon inhibition or elimination of the bacteria, and is apparently dependent on the physical interaction with metabolically active bacteria. Molecular analysis of Klebsiella-Aspergillus interaction has shown upregulation of Aspergillus cell wall-related genes and downregulation of hyphae-related genes, suggesting that Klebsiella induces cell wall stress response mechanisms and suppresses filamentous growth. Characterization of polymicrobial interactions may provide the basis for improved clinical management of mixed infections by setting the stage for appropriate diagnostics and ultimately for optimized treatment strategies.
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26
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Sun L, Jiang W, Zhang H, Guo Y, Chen W, Jin Y, Chen H, Du K, Dai H, Ji J, Wang B. Photosensitizer-Loaded Multifunctional Chitosan Nanoparticles for Simultaneous in Situ Imaging, Highly Efficient Bacterial Biofilm Eradication, and Tumor Ablation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:2302-2316. [PMID: 30596498 DOI: 10.1021/acsami.8b19522] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In recent decades, bacterial and viral infections and chronic inflammatory response have emerged as important causes of cancer. Also, infections remain a significant cause of morbidity and mortality in cancer patients. In this work, carboxymethyl chitosan nanoparticles (CMC NPs) were synthesized in a facile and green way and further combined with ammonium methylbenzene blue (MB) as a cross-linking agent as well as a fluorescent molecule and a photosensitizer for self-imaging photodynamic therapy (PDT). The obtained CMC-MB NPs exhibited an apparent pH-responsive release behavior of MB, which was released for a prolonged period in a simulated physiological environment (pH 7.4) for more than 15 days and the time reduced to only 3.5 h in acidic conditions (pH 5.5). When irradiated by a 650 nm laser at 202 mW/cm2 for 5 min, the CMC-MB NPs showed efficient bactericidal and biofilm eradication properties as well as suppression of tumor cell growth in a similar acidified microenvironment. Furthermore, in an in vivo rabbit wound bacterial infection model, the rapid sterilization of CMC-MB NPs played a crucial role in bacterial infections, inflammation inhibition, and wound healing. As a PDT treatment against cancer, the CMC-MB NPs also exhibited an efficient antitumor therapeutic effect in a subcutaneous tumor mice model.
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Affiliation(s)
- Lin Sun
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
| | - Wenya Jiang
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
| | - Hengrui Zhang
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
- Wenzhou Institute of Biomaterials and Engineering , Chinese Academy of Sciences , Wenzhou 325000 , China
| | - Yishun Guo
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
| | - Wei Chen
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
- Wenzhou Institute of Biomaterials and Engineering , Chinese Academy of Sciences , Wenzhou 325000 , China
| | - Yingying Jin
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
- Wenzhou Institute of Biomaterials and Engineering , Chinese Academy of Sciences , Wenzhou 325000 , China
| | - Kanghui Du
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
| | - Hangdong Dai
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
| | - Jian Ji
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Bailiang Wang
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou 325027 , China
- Wenzhou Institute of Biomaterials and Engineering , Chinese Academy of Sciences , Wenzhou 325000 , China
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27
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Rahmatika D, Kuroda N, Min Z, Nainu F, Nagaosa K, Nakanishi Y. Inhibitory effects of viral infection on cancer development. Virology 2018; 528:48-53. [PMID: 30576859 DOI: 10.1016/j.virol.2018.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/08/2018] [Accepted: 12/10/2018] [Indexed: 12/30/2022]
Abstract
Immune responses evoked on viral infections prevent the dissemination of infection that otherwise leads to the development of diseases in host organisms. In the present study, we investigated whether viral infection influences tumorigenesis in cancer-bearing animals using a Drosophila model of cancer. Cancer was induced in the posterior part of wing imaginal discs through the simultaneous inhibition of apoptosis and cell-cycle checkpoints. The larvae and embryos of cancer-induced flies were infected with Drosophila C virus, a natural pathogen to Drosophila, and larval wing discs and adult wings were morphologically examined for cancer characteristics relative to uninfected controls. We found that viral infections brought about an approximately 30% reduction in the rate of cancer development in both wing discs and wings. These inhibitory effects were not observed when growth-defective virus was used to infect animals. These results indicate that productive viral infections repress tumorigenesis in Drosophila.
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Affiliation(s)
- Dini Rahmatika
- Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Nanae Kuroda
- School of Pharmacy, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Zhang Min
- Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Firzan Nainu
- Faculty of Pharmacy, Hasanuddin University, Tamalanrea, Kota Makassar, Sulawesi Selatan 90245, Indonesia
| | - Kaz Nagaosa
- Section of Food Sciences, Institute of Regional Innovation, Hirosaki University, Yanagawa, Aomori 038-0012, Japan
| | - Yoshinobu Nakanishi
- Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan; School of Pharmacy, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan.
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28
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Nycz BT, Dominguez SR, Friedman D, Hilden JM, Ir D, Robertson CE, Frank DN. Evaluation of bloodstream infections, Clostridium difficile infections, and gut microbiota in pediatric oncology patients. PLoS One 2018; 13:e0191232. [PMID: 29329346 PMCID: PMC5766145 DOI: 10.1371/journal.pone.0191232] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 12/29/2017] [Indexed: 01/11/2023] Open
Abstract
Bloodstream infections (BSI) and Clostridium difficile infections (CDI) in pediatric oncology/hematology/bone marrow transplant (BMT) populations are associated with significant morbidity and mortality. The objective of this study was to explore possible associations between altered microbiome composition and the occurrence of BSI and CDI in a cohort of pediatric oncology patients. Stool samples were collected from all patients admitted to the pediatric oncology floor from Oct.-Dec. 2012. Bacterial profiles from patient stools were determined by bacterial 16S rRNA gene profiling. Differences in overall microbiome composition were assessed by a permutation-based multivariate analysis of variance test, while differences in the relative abundances of specific taxa were assessed by Kruskal-Wallis tests. At admission, 9 of 42 patients (21%) were colonized with C. difficile, while 6 of 42 (14%) subsequently developed a CDI. Furthermore, 3 patients (7%) previously had a BSI and 6 patients (14%) subsequently developed a BSI. Differences in overall microbiome composition were significantly associated with disease type (p = 0.0086), chemotherapy treatment (p = 0.018), BSI following admission from any cause (p < 0.0001) or suspected gastrointestinal organisms (p = 0.00043). No differences in baseline microbiota were observed between individuals who did or did not subsequently develop C. difficile infection. Additionally, multiple bacterial groups varied significantly between subjects with post-admission BSI compared with no BSI. Our results suggest that differences in gut microbiota not only are associated with type of cancer and chemotherapy, but may also be predictive of subsequent bloodstream infection.
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Affiliation(s)
- Bryan T. Nycz
- Division of Adult Infectious Diseases, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Samuel R. Dominguez
- Division of Pediatric Infectious Diseases, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Deborah Friedman
- Department of Epidemiology, Children’s Hospital Colorado, Aurora, Colorado, United States of America
| | - Joanne M. Hilden
- Center for Blood and Cancer Disorders, Children’s Hospital Colorado, Aurora, Colorado, United States of America
| | - Diana Ir
- Division of Adult Infectious Diseases, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Charles E. Robertson
- Division of Adult Infectious Diseases, University of Colorado School of Medicine, Aurora, Colorado, United States of America
| | - Daniel N. Frank
- Division of Adult Infectious Diseases, University of Colorado School of Medicine, Aurora, Colorado, United States of America
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29
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A Case of Polymicrobial Bacteremia in a Patient Undergoing Chemotherapy. Case Rep Infect Dis 2018; 2018:4165960. [PMID: 29593918 PMCID: PMC5821991 DOI: 10.1155/2018/4165960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 12/22/2017] [Accepted: 12/28/2017] [Indexed: 11/18/2022] Open
Abstract
We report an aggressive case of polymicrobial bacteremia in a patient with renal pelvis carcinoma. A 76-year-old man developed watery diarrhea after undergoing chemotherapy. He became unconscious and went into shock. Laboratory data showed severe neutropenia, renal failure, and lactic acidosis. Chest radiography showed multiple opacities. He died despite aggressive fluid resuscitation, catecholamine administration, antibiotic treatment, and mechanical ventilation. Blood culture isolates included Escherichia coli, Klebsiella pneumoniae, Streptococcus pneumoniae, Acinetobacter baumannii, and Moraxella catarrhalis. The foci of bacteremia were the respiratory tract and the bowel. The two infection foci and polymicrobial bacteremia are thought to be associated with the patient’s poor prognosis. Although polymicrobial bacteremia is rare, awareness of this condition and of the rare causative pathogens, such as A. baumannii and M. catarrhalis, especially in patients with comorbidities and immunosuppression will help treat the patients with bacteremia.
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