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Feng D, Wang J, Wu R, Li D. Re: Immune System and Intestinal Microbiota Determine Efficacy of Androgen Deprivation Therapy Against Prostate Cancer. Eur Urol 2024; 85:498-499. [PMID: 38369423 DOI: 10.1016/j.eururo.2024.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/05/2023] [Accepted: 01/08/2024] [Indexed: 02/20/2024]
Affiliation(s)
- Dechao Feng
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China; Department of Rehabilitation, Southwest Medical University Hospital, Luzhou, China.
| | - Jie Wang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Ruicheng Wu
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Dengxiong Li
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.
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2
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Jingushi K, Kawashima A, Tanikawa S, Saito T, Yamamoto A, Uemura T, Sassi N, Ishizuya Y, Yamamoto Y, Kato T, Hatano K, Hase H, Nonomura N, Tsujikawa K. Cutibacterium acnes-derived extracellular vesicles promote tumor growth in renal cell carcinoma. Cancer Sci 2024. [PMID: 38682309 DOI: 10.1111/cas.16202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/08/2024] [Accepted: 04/17/2024] [Indexed: 05/01/2024] Open
Abstract
Bacterial flora are present in various parts of the human body, including the intestine, and are thought to be involved in the etiology of various diseases such as multiple sclerosis, intestinal diseases, cancer, and uterine diseases. In recent years, the presence of bacterial 16S rRNA genes has been revealed in blood, which was previously thought to be a sterile environment, and characteristic blood microbiomes have been detected in various diseases. However, the mechanism and the origin of the bacterial information are unknown. In this study, we performed 16S rRNA metagenomic analysis of bacterial DNA in serum extracellular vesicles from five healthy donors and seven patients with renal cell carcinoma and detected Cutibacterium acnes DNA as a characteristic bacterial DNA in the serum extracellular vesicles of patients with renal cell carcinoma. In addition, C. acnes DNA was significantly reduced in postoperative serum extracellular vesicles from patients with renal cell carcinoma compared with that in preoperative serum extracellular vesicles from these patients and was also detected in tumor tissue and extracellular vesicles from tumor tissue-associated microbiota, suggesting an association between C. acnes extracellular vesicles and renal cell carcinoma. C. acnes extracellular vesicles were taken up by renal carcinoma cells to enhance their proliferative potential. C. acnes extracellular vesicles also exhibited tumor-promoting activity in a mouse model of renal cancer allografts with enhanced angiogenesis. These results suggest that extracellular vesicles released by C. acnes localized in renal cell carcinoma tissues act in a tumor-promoting manner.
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Affiliation(s)
- Kentaro Jingushi
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Atsunari Kawashima
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Sayaka Tanikawa
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Takuro Saito
- Department of Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Akinaru Yamamoto
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Toshihiro Uemura
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Nesrine Sassi
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yu Ishizuya
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yoshiyuki Yamamoto
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Taigo Kato
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Koji Hatano
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Hiroaki Hase
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Norio Nonomura
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Kazutake Tsujikawa
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
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3
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Ward Grados DF, Ergun O, Miller CD, Gaburak P, Frimpong NA, Shittu O, Warlick CA. Prostate Tissue Microbiome in Patients with Prostate Cancer: A Systematic Review. Cancers (Basel) 2024; 16:1549. [PMID: 38672631 PMCID: PMC11048594 DOI: 10.3390/cancers16081549] [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: 03/12/2024] [Revised: 04/05/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Some researchers have speculated that the prostatic microbiome is involved in the development of prostate cancer (PCa) but there is no consensus on certain microbiota in the prostatic tissue of PCa vs. healthy controls. This systematic review aims to investigate and compare the microbiome of PCa and healthy tissue to determine the microbial association with the pathogenesis of PCa. We searched MEDLINE, Embase, and Scopus databases. Articles were screened by two independent and blinded reviewers. Literature that compared the prostatic tissue microbiome of patients with PCa with benign controls was included. We found that PCa may be associated with increased Propionibacterium acnes, the herpesviridae and papillomaviridae families, and Mycoplasma genitalium, but definitive conclusions cannot be drawn from the existing data. Challenges include the difficulty of obtaining uncontaminated tissue samples and securing tissue from healthy controls. As a result, methods are varied with many studies using cancerous and "healthy" tissue from the same prostate. The organisms chosen for each study were also highly variable, making it difficult to compare studies. These issues have led to lower confidence in our results. Overall, further work is warranted to better understand the implications of the prostatic microbiome in the pathogenesis of PCa.
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Fu Y, Li J, Cai W, Huang Y, Liu X, Ma Z, Tang Z, Bian X, Zheng J, Jiang J, Li C. The emerging tumor microbe microenvironment: From delineation to multidisciplinary approach-based interventions. Acta Pharm Sin B 2024; 14:1560-1591. [PMID: 38572104 PMCID: PMC10985043 DOI: 10.1016/j.apsb.2023.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/20/2023] [Accepted: 11/03/2023] [Indexed: 04/05/2024] Open
Abstract
Intratumoral microbiota has become research hotspots, and emerges as a non-negligent new component of tumor microenvironments (TME), due to its powerful influence on tumor initiation, metastasis, immunosurveillance and prognosis despite in low-biomass. The accumulations of microbes, and their related components and metabolites within tumor tissues, endow TME with additional pluralistic features which are distinct from the conventional one. Therefore, it's definitely necessary to comprehensively delineate the sophisticated landscapes of tumor microbe microenvironment, as well as their functions and related underlying mechanisms. Herein, in this review, we focused on the fields of tumor microbe microenvironment, including the heterogeneity of intratumor microbiota in different types of tumors, the controversial roles of intratumoral microbiota, the basic features of tumor microbe microenvironment (i.e., pathogen-associated molecular patterns (PAMPs), typical microbial metabolites, autophagy, inflammation, multi-faceted immunomodulation and chemoresistance), as well as the multidisciplinary approach-based intervention of tumor microbiome for cancer therapy by applying wild-type or engineered live microbes, microbiota metabolites, antibiotics, synthetic biology and rationally designed biomaterials. We hope our work will provide valuable insight to deeply understand the interplay of cancer-immune-microbial, and facilitate the development of microbes-based tumor-specific treatments.
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Affiliation(s)
- Yu Fu
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Jia Li
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Wenyun Cai
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Yulan Huang
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Xinlong Liu
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Zhongyi Ma
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Zhongjie Tang
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Xufei Bian
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Ji Zheng
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Jiayun Jiang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Chong Li
- Medical Research Institute, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
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Trivedi V, Noronha V, Sreekanthreddy P, Desai S, Poojary D, Varghese L, Gowda P, Butle A, Mishra R, Bal M, Mittal N, Rane S, Kane S, Basu S, Patil V, Menon N, Singh AK, Chaturvedi P, Chandrani P, Choughule A, Veldore V, Prabhash K, Dutt A. Association of Cutibacterium acnes with human thyroid cancer. Front Endocrinol (Lausanne) 2023; 14:1152514. [PMID: 38027096 PMCID: PMC10668118 DOI: 10.3389/fendo.2023.1152514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction The diverse subtypes of thyroid carcinoma have distinct clinical outcomes despite a comparable spectrum of underlying genetic alterations. Beyond genetic alterations, sparse efforts have been made to characterize the microbes associated with thyroid cancer. In this study, we examine the microbial profile of thyroid cancer. Methods We sequenced the whole transcriptome of 70 thyroid cancers (40 papillary and 30 anaplastic). Using Infectious Pathogen Detector IPD 2.0, we analysed the relative abundance of 1060 microbes across 70 tumours from patients with thyroid cancer against 118 tumour samples from patients with breast, cervical, colorectal, and tongue cancer. Results Our analysis reveals a significant prevalence of Cutibacterium acnes in 58.6% thyroid cancer samples compared to other cancer types (p=0.00038). Immune cell fraction analysis between thyroid cancer samples with high and low Cutibacterium loads identify enrichment of immunosuppressive cells, including Tregs (p=0.015), and other anti-inflammatory cytokines in the tumour microenvironment, suggesting an immune evasion/immunosuppression milieu is associated with the infection. A higher burden of Cutibacterium acnes was also found to be associated with poor survival defining a distinct sub-group of thyroid cancer. Conclusion Cutibacterium acnes is associated with immune suppression and poor prognosis in a subpopulation of thyroid cancer. This study may help design novel therapeutic measures involving appropriate antibiotics to manage the disease better.
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Affiliation(s)
- Vaishakhi Trivedi
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Vanita Noronha
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | | | - Sanket Desai
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
- Integrated Cancer Genomics Laboratory, Advanced Centre for Treatment, Research, and Education in Cancer, Navi Mumbai, Maharashtra, India
| | - Disha Poojary
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Linu Varghese
- 4baseCare Oncosolutions Pvt ltd, Institute of Bioinformatics and Applied Biotechnology, Bengaluru, Karnataka, India
| | - Pooja Gowda
- 4baseCare Oncosolutions Pvt ltd, Institute of Bioinformatics and Applied Biotechnology, Bengaluru, Karnataka, India
| | - Ashwin Butle
- Integrated Cancer Genomics Laboratory, Advanced Centre for Treatment, Research, and Education in Cancer, Navi Mumbai, Maharashtra, India
| | - Rohit Mishra
- Integrated Cancer Genomics Laboratory, Advanced Centre for Treatment, Research, and Education in Cancer, Navi Mumbai, Maharashtra, India
| | - Munita Bal
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
- Department of Pathology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Neha Mittal
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
- Department of Pathology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Swapnil Rane
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
- Department of Pathology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Shubhada Kane
- Consultant Onco-pathologist, Jaslok Hospital, Mumbai, Maharashtra, India
| | - Sandip Basu
- Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Vijay Patil
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Nandini Menon
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Ajay Kumar Singh
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Pankaj Chaturvedi
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
- Department of Head and Neck Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Pratik Chandrani
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
- Medical oncology molecular laboratory, Tata Memorial Hospital, Mumbai, Maharashtra, India
- Centre for Computational Biology, Bioinformatics and Crosstalk Lab, Advanced Centre for Treatment, Research, and Education in Cancer, Navi Mumbai, Maharashtra, India
| | - Anuradha Choughule
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Vidya Veldore
- 4baseCare Oncosolutions Pvt ltd, Institute of Bioinformatics and Applied Biotechnology, Bengaluru, Karnataka, India
| | - Kumar Prabhash
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Amit Dutt
- Homi Bhabha National Institute, Mumbai, Maharashtra, India
- Integrated Cancer Genomics Laboratory, Advanced Centre for Treatment, Research, and Education in Cancer, Navi Mumbai, Maharashtra, India
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Jain V, Baraniya D, El-Hadedy DE, Chen T, Slifker M, Alakwaa F, Cai KQ, Chitrala KN, Fundakowski C, Al-Hebshi NN. Integrative Metatranscriptomic Analysis Reveals Disease-specific Microbiome-host Interactions in Oral Squamous Cell Carcinoma. CANCER RESEARCH COMMUNICATIONS 2023; 3:807-820. [PMID: 37377901 PMCID: PMC10166004 DOI: 10.1158/2767-9764.crc-22-0349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 01/05/2023] [Accepted: 04/13/2023] [Indexed: 06/29/2023]
Abstract
Studies on the microbiome of oral squamous cell carcinoma (OSCC) have been limited to 16S rRNA gene sequencing. Here, laser microdissection coupled with brute-force, deep metatranscriptome sequencing was employed to simultaneously characterize the microbiome and host transcriptomes and predict their interaction in OSCC. The analysis involved 20 HPV16/18-negative OSCC tumor/adjacent normal tissue pairs (TT and ANT) along with deep tongue scrapings from 20 matched healthy controls (HC). Standard bioinformatic tools coupled with in-house algorithms were used to map, analyze, and integrate microbial and host data. Host transcriptome analysis identified enrichment of known cancer-related gene sets, not only in TT versus ANT and HC, but also in the ANT versus HC contrast, consistent with field cancerization. Microbial analysis identified a low abundance yet transcriptionally active, unique multi-kingdom microbiome in OSCC tissues predominated by bacteria and bacteriophages. HC showed a different taxonomic profile yet shared major microbial enzyme classes and pathways with TT/ANT, consistent with functional redundancy. Key taxa enriched in TT/ANT compared with HC were Cutibacterium acnes, Malassezia restricta, Human Herpes Virus 6B, and bacteriophage Yuavirus. Functionally, hyaluronate lyase was overexpressed by C. acnes in TT/ANT. Microbiome-host data integration revealed that OSCC-enriched taxa were associated with upregulation of proliferation-related pathways. In a preliminary in vitro validation experiment, infection of SCC25 oral cancer cells with C. acnes resulted in upregulation of MYC expression. The study provides a new insight into potential mechanisms by which the microbiome can contribute to oral carcinogenesis, which can be validated in future experimental studies. Significance Studies have shown that a distinct microbiome is associated with OSCC, but how the microbiome functions within the tumor interacts with the host cells remains unclear. By simultaneously characterizing the microbial and host transcriptomes in OSCC and control tissues, the study provides novel insights into microbiome-host interactions in OSCC which can be validated in future mechanistic studies.
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Affiliation(s)
- Vinay Jain
- Oral Microbiome Research Laboratory, Department of Oral Health Sciences, Maurice H. Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania
- Low level Radiation Research Section, Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Divyashri Baraniya
- Oral Microbiome Research Laboratory, Department of Oral Health Sciences, Maurice H. Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania
| | - Doaa E. El-Hadedy
- Oral Microbiome Research Laboratory, Department of Oral Health Sciences, Maurice H. Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania
| | - Tsute Chen
- Department of Microbiology, Forsyth Institute, Cambridge, Massachusetts
| | - Michael Slifker
- Biostatistics and Bioinformatics Facility, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Fadhl Alakwaa
- Department of Internal Medicine, Nephrology Division, University of Michigan, Ann Arbor, Michigan
| | - Kathy Q. Cai
- Histopathology Facility, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Kumaraswamy N. Chitrala
- Fels Cancer Institute for Personalized Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | | | - Nezar N. Al-Hebshi
- Oral Microbiome Research Laboratory, Department of Oral Health Sciences, Maurice H. Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
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Ai B, Mei Y, Liang D, Wang T, Cai H, Yu D. Uncovering the special microbiota associated with occurrence and progression of gastric cancer by using RNA-sequencing. Sci Rep 2023; 13:5722. [PMID: 37029259 PMCID: PMC10082026 DOI: 10.1038/s41598-023-32809-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 04/03/2023] [Indexed: 04/09/2023] Open
Abstract
Gastric cancer (GC) has been identified as the third deadly cancer in the world. Accumulating researches suggest a potential role of microorganisms in tumorigenesis. However, the composition of microbiota in GC tissues is not clear and it changes throughout the different stages of GC remain mostly elusive. Our study integrated RNA-Seq data of 727 samples derived from gastric tissues across four datasets and revealed its microbial composition. In order to remove the false positive results, core taxa were defined and characterized. Based on it, we analyzed the influence of biological factors on its composition. The pan-microbiome of gastric tissues was estimated to be over than 1400 genera. Seventeen core genera were identified. Among them, Helicobacter, Lysobacter were significantly enriched in normal tissues, while Pseudomonas was enriched in tumor tissues. Interestingly, Acinetobacter, Pasteurella, Streptomyces, Chlamydia, and Lysobacter, showed a significant increase trend during tumor development and formed strong intra/inter-correlations among them or with other genera. Furthermore, we found that tumor stage played an important role in altering the microbial composition of GC tissues. This study provides support for the in-depth study of tumor microbiome, and the specific microbiome excavated provides a possibility for the subsequent identification of potential biomarkers for GC.
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Affiliation(s)
- Bin Ai
- Department of Precision Medicine, Translational Medicine Research Center, Naval Medical University, Shanghai, China
- Shanghai Key Laboratory of Cell Engineering, Shanghai, China
| | - Yue Mei
- Department of Precision Medicine, Translational Medicine Research Center, Naval Medical University, Shanghai, China
- Shanghai Key Laboratory of Cell Engineering, Shanghai, China
| | - Dong Liang
- Department of Precision Medicine, Translational Medicine Research Center, Naval Medical University, Shanghai, China
- Shanghai Key Laboratory of Cell Engineering, Shanghai, China
| | - Tengjiao Wang
- Department of Precision Medicine, Translational Medicine Research Center, Naval Medical University, Shanghai, China
- Shanghai Key Laboratory of Cell Engineering, Shanghai, China
| | - Hui Cai
- Department of Gastrointestinal Surgery, Changhai Hospital, Shanghai, China.
| | - Dong Yu
- Department of Precision Medicine, Translational Medicine Research Center, Naval Medical University, Shanghai, China.
- Shanghai Key Laboratory of Cell Engineering, Shanghai, China.
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Microbiota of Urine, Glans and Prostate Biopsies in Patients with Prostate Cancer Reveals a Dysbiosis in the Genitourinary System. Cancers (Basel) 2023; 15:cancers15051423. [PMID: 36900215 PMCID: PMC10000660 DOI: 10.3390/cancers15051423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/19/2023] [Accepted: 02/22/2023] [Indexed: 02/26/2023] Open
Abstract
Prostate cancer (PCa) is the most common malignant neoplasm with the highest worldwide incidence in men aged 50 years and older. Emerging evidence suggests that the microbial dysbiosis may promote chronic inflammation linked to the development of PCa. Therefore, this study aims to compare the microbiota composition and diversity in urine, glans swabs, and prostate biopsies between men with PCa and non-PCa men. Microbial communities profiling was assessed through 16S rRNA sequencing. The results indicated that α-diversity (number and abundance of genera) was lower in prostate and glans, and higher in urine from patients with PCa, compared to non-PCa patients. The different genera of the bacterial community found in urine was significantly different in PCa patients compared to non-PCa patients, but they did not differ in glans and prostate. Moreover, comparing the bacterial communities present in the three different samples, urine and glans show a similar genus composition. Linear discriminant analysis (LDA) effect size (LEfSe) analysis revealed significantly higher levels of the genera Streptococcus, Prevotella, Peptoniphilus, Negativicoccus, Actinomyces, Propionimicrobium, and Facklamia in urine of PCa patients, whereas Methylobacterium/Methylorubrum, Faecalibacterium, and Blautia were more abundant in the non-PCa patients. In glans, the genus Stenotrophomonas was enriched in PCa subjects, while Peptococcus was more abundant in non-PCa subjects. In prostate, Alishewanella, Paracoccus, Klebsiella, and Rothia were the overrepresented genera in the PCa group, while Actinomyces, Parabacteroides, Muribaculaceae sp., and Prevotella were overrepresented in the non-PCa group. These findings provide a strong background for the development of potential biomarkers with clinical interest.
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9
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Zhang Z, Liao Y, Tang D. Intratumoral microbiota: New Frontiers in Tumor Immunity. Carcinogenesis 2022; 43:719-727. [PMID: 35868230 DOI: 10.1093/carcin/bgac063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/20/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Abstract
Microbiota-host interactions are a hot topic of research because of their important role in regulating the malignant transformation of cancer cells and cancer-related immunity. The role of gut microbiota, oral microbiota, and skin microbiota in cancer progression has been extensively studied. However, intratumoral microbiota is a recently discovered topic of research that is still in its infancy. This review focuses on the impact of the intratumoral microbiota on cancer immune responses and highlights how the intratumoral microbiota modulates innate and adaptive immunity to potentially impact tumor immunotherapy in the hope that it will inspire potential ideas for the application of immunotherapy in the treatment of tumors.
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Affiliation(s)
- Zhilin Zhang
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Yiqun Liao
- Department of Clinical Medical College, Dalian Medical University, Dalian, China
| | - Dong Tang
- Department of General Surgery, Institute of General Surgery, Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
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