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Han YY, Zhang QH, Chen WS, Li ZL, Xie D, Zhang SL, Lu H, Wang LW, Xu ZH, Zhang LZ. Fermented rape pollen powder can alleviate benign prostatic hyperplasia in rats by reducing hormone content and changing gut microbiota. Benef Microbes 2023; 14:503-524. [PMID: 38656098 DOI: 10.1163/18762891-20230039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/22/2023] [Indexed: 04/26/2024]
Abstract
Benign prostatic hyperplasia (BPH) can cause urethral compression, bladder stone formation, and renal function damage, which may endanger the life of patients. Therefore, we aimed to develop plant-based preparations for BPH treatment with no side effects. In this study, the Lactiplantibacillus plantarum 322Hp, Lactobacillus acidophilus 322Ha, and Limosilactobacillus reuteri 322Hr were used to ferment rape pollen. The fermented rape pollen was subsequently converted into fermented rape pollen powder (FRPP) through vacuum freeze-drying technology. After fermenting and drying, the bioactive substances and antioxidant capacity of FRPP were significantly higher than those of unfermented rapeseed pollen, and FRPP had a longer storage duration, which can be stored for over one year. To investigate the therapeutic effect of FRPP on BPH, a BPH rat model was established by hypodermic injection of testosterone propionate. The BPH rats were treated differently, with the model group receiving normal saline, the positive control group receiving finasteride, and the low, medium, and high dose FRPP group receiving FRPP at doses of 0.14 g/kg/d, 0.28 g/kg/d, and 0.56 g/kg/d, respectively. The results indicate that medium dose FRPP reduced the levels of hormone such as testosterone, dihydrotestosterone, and oestradiol in rats with BPH by about 32%, thus bringing the prostate tissue of BPH rats closer to normal. More importantly, medium dose FRPP treatment had a significant effect on the composition of gut microbiota in rats with BPH, increasing the levels of beneficial genera (such as Coprococcus and Jeotgalicoccus), and decreasing the levels of harmful pathogens (such as Turicibacter and Clostridiaceae_Clostridium) in the gut. This study showed that medium dose FRPP reduced the hormone level and regulated the unbalanced gut microbiota in BPH rats, thereby alleviating BPH.
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Affiliation(s)
- Y Y Han
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - Q H Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - W S Chen
- Nanjing Jiufengtang Bee Products Co., Ltd, Nanjing, 210000, China P.R
| | - Z L Li
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - D Xie
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - S L Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - H Lu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - L W Wang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - Z H Xu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - L Z Zhang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China P.R
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Boibessot C, Molina O, Lachance G, Tav C, Champagne A, Neveu B, Pelletier J, Pouliot F, Fradet V, Bilodeau S, Fradet Y, Bergeron A, Toren P. Subversion of infiltrating prostate macrophages to a mixed immunosuppressive tumor-associated macrophage phenotype. Clin Transl Med 2022; 12:e581. [PMID: 35075795 PMCID: PMC8786699 DOI: 10.1002/ctm2.581] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 12/21/2022] Open
Abstract
Tumor-associated macrophages (TAMs) support tumor progression within the tumor microenvironment (TME). Many questions remain as to the origin, development, and function of TAMs within the prostate TME. Evaluation of TAMs in prostate cancer (PCa) patients identified the immunosuppressive TAM marker CD163 in adjacent normal epithelium as an independent predictor of metastases or PCa death. Flow cytometry analyses identified prostate TAMs as frequently expressing both proinflammatory M1 (CCR7+) and immunosuppressive M2 (CD163+) markers. In vitro, we demonstrate PCa cells similarly subvert human M1 macrophages toward a mixed M1/M2 macrophage phenotype favoring tumor growth. Further the cytokine milieu-induced transition between immunosuppressive M2 to proinflammatory M1 (M2→M1) macrophages is abrogated by the presence of PCa cells. RNA sequencing suggests alterations in chemokine expression in prostate TAMs due to the presence of PCa cells. Together, our results suggest that prostate TAMs originate from inflammatory infiltrating macrophages, which are then reprogrammed mainly by PCa cells, but also the cytokine milieu. A better understanding of this subversion of macrophages within the prostate may lead to novel treatment strategies.
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Affiliation(s)
- Clovis Boibessot
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
| | - Oscar Molina
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
| | - Gabriel Lachance
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
| | - Christophe Tav
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
- Centre de Recherche en Données Massives de l'Université LavalQuébecCanada
| | - Audrey Champagne
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
| | - Bertrand Neveu
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
| | - Jean‐François Pelletier
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
| | - Frédéric Pouliot
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
- Département de chirurgieUniversité LavalQuébecCanada
| | - Vincent Fradet
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
- Département de chirurgieUniversité LavalQuébecCanada
| | - Steve Bilodeau
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
- Centre de Recherche en Données Massives de l'Université LavalQuébecCanada
- Département de biologie moléculairebiochimie médicale et pathologieFaculté de MédecineUniversité LavalQuébecCanada
| | - Yves Fradet
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
- Département de chirurgieUniversité LavalQuébecCanada
| | - Alain Bergeron
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
- Département de chirurgieUniversité LavalQuébecCanada
| | - Paul Toren
- Centre de recherche du CHU de Québec—Université LavalAxe OncologieQuébecCanada
- Centre de recherche sur le cancer de l'Université LavalQuébecCanada
- Département de chirurgieUniversité LavalQuébecCanada
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Ruetten H, Sandhu J, Mueller B, Wang P, Zhang HL, Wegner KA, Cadena M, Sandhu S, L Abler L, Zhu J, O'Driscoll CA, Chelgren B, Wang Z, Shen T, Barasch J, Bjorling DE, Vezina CM. A uropathogenic E. coli UTI89 model of prostatic inflammation and collagen accumulation for use in studying aberrant collagen production in the prostate. Am J Physiol Renal Physiol 2021; 320:F31-F46. [PMID: 33135480 PMCID: PMC7847049 DOI: 10.1152/ajprenal.00431.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/09/2020] [Accepted: 10/24/2020] [Indexed: 11/22/2022] Open
Abstract
Bacterial infection is one known etiology of prostatic inflammation. Prostatic inflammation is associated with prostatic collagen accumulation and both are linked to progressive lower urinary tract symptoms in men. We characterized a model of prostatic inflammation using transurethral instillations of Escherichia coli UTI89 in C57BL/6J male mice with the goal of determining the optimal instillation conditions, understanding the impact of instillation conditions on urinary physiology, and identifying ideal prostatic lobes and collagen 1a1 prostatic cell types for further analysis. The smallest instillation volume tested (50 µL) distributed exclusively to the bladder, 100- and 200-µL volumes distributed to the bladder and prostate, and a 500-µL volume distributed to the bladder, prostate, and ureter. A threshold optical density of 0.4 E. coli UTI89 in the instillation fluid was necessary for significant (P < 0.05) prostate colonization. E. coli UTI89 infection resulted in a low frequency, high volume spontaneous voiding pattern. This phenotype was due to exposure to E. coli UTI89, not catheterization alone, and was minimally altered by a 50-µL increase in instillation volume and doubling of E. coli concentration. Prostate inflammation was isolated to the dorsal prostate and was accompanied by increased collagen density. This was partnered with increased density of protein tyrosine phosphatase receptor type C+, procollagen type I-α1+ copositive cells and decreased density of α2-smooth muscle actin+, procollagen type I-α1+ copositive cells. Overall, we determined that this model is effective in altering urinary phenotype and producing prostatic inflammation and collagen accumulation in mice.
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Affiliation(s)
- Hannah Ruetten
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Jaskiran Sandhu
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Brett Mueller
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Peiqing Wang
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Helen L Zhang
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Kyle A Wegner
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Mark Cadena
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Simran Sandhu
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Lisa L Abler
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Jonathan Zhu
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Chelsea A O'Driscoll
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Britta Chelgren
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
| | - Zunyi Wang
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Tian Shen
- Columbia University, Department of Medicine, New York, New York
| | | | - Dale E Bjorling
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
- Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Chad M Vezina
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, Wisconsin
- University of Wisconsin-Madison/UMASS Boston George M. O'Brien Center for Benign Urologic Research, Madison, Wisconsin, and Boston, Massachusetts
- Molecular and Environmental Toxicology Center, University of Wisconsin-Madison, Madison, Wisconsin
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Jain S, Samal AG, Das B, Pradhan B, Sahu N, Mohapatra D, Behera PK, Satpathi PS, Mohanty AK, Satpathi S, Senapati S. Escherichia coli, a common constituent of benign prostate hyperplasia-associated microbiota induces inflammation and DNA damage in prostate epithelial cells. Prostate 2020; 80:1341-1352. [PMID: 32835423 DOI: 10.1002/pros.24063] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/25/2020] [Accepted: 08/10/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND The role of microbiota in the pathophysiology of benign prostate hyperplasia (BPH), especially in creating an inflammatory milieu may not be avoided. The major objectives of this study were to investigate the microbial composition of BPH tissues, its association with inflammation and check the effect of clinically isolated bacteria on prostate epithelial cells. METHODS The study includes 36 patients with a pathological diagnosis of BPH. Following strict aseptic measures, tissues were collected after transurethral resection of prostate, multiple pieces of the resected tissues were subjected to histopathological analysis, bacterial culture and genomic DNA extraction. Microbial composition was analyzed by culture and/or next-generation sequencing methods. Annotation of operational taxonomy unit has been done with an in-house algorithm. The extent of inflammation was scored through histological evaluation of tissue sections. The effect of clinical isolates on nuclear factor-κB (NF-κB) activity and induction of DNA-damage in the prostate epithelial cells were evaluated. RESULTS Histopathological analysis of the BPH tissues showed the presence of inflammation in almost all the tissues with a varied level at different regions of the same tissue section and the level of overall inflammation was different from patients to patients. Microbial culture of tissue samples showed the presence of live bacteria in 55.5% (20 out of 36) of the patient tissues. Majority of the isolates were coagulase-positive Staphylococcus, E. coli and Micrococcus spp. Further, V3 16S rRNA sequencing of the DNA isolated from BPH tissues showed the presence of multiple bacteria and the most common phylum in the BPH tissues were found to be Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes. The E. coli, isolated from one of the tissue was able to activate NF-κB and induce DNA damage in prostate epithelial cells. Phospho-histone γH2A.X staining confirmed the presence of cells with damaged DNA lesion in BPH tissues and also correlated with the severity of inflammation. CONCLUSION Our study has shown that the BPH tissues do have a divergent microbial composition including the commonly found E. coli (phylum Proteobacteria), and these bacteria might contribute to the BPH-associated inflammation and/or tissue damage. The BPH-associated E. coli induced NF-κB signaling and DNA damage in prostate epithelial cells in vitro.
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Affiliation(s)
- Sumeet Jain
- Division of Cancer Biology, Tumor Microenvironment and Animal Models Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
- Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Ajit Gopal Samal
- Department of Surgery, Hitech Medical College, Rourkela, Odisha, India
| | - Biswajit Das
- Division of Cancer Biology, Tumor Microenvironment and Animal Models Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
- Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Biswaranjan Pradhan
- School of Basic Sciences, S. K. Dash Center of Excellence of Biosciences and Engineering & Technology (SKBET), Indian Institute of Technology, Bhubaneswar, Odisha, India
| | - Nilanjan Sahu
- School of Biological Sciences, National Institute of Science Education and Research, Bhubaneswar, Odisha, India
| | - Debasish Mohapatra
- Division of Cancer Biology, Tumor Microenvironment and Animal Models Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | | | | | - Akshaya K Mohanty
- Infectious Disease Biology Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Sanghamitra Satpathi
- Department of Pathology, Ispat General Hospital, Rourkela, Odisha, India
- Department of Pathology, Hitech Medical College and Hospital, Rourkela, Odisha, India
| | - Shantibhusan Senapati
- Division of Cancer Biology, Tumor Microenvironment and Animal Models Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
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Crocetto F, Boccellino M, Barone B, Di Zazzo E, Sciarra A, Galasso G, Settembre G, Quagliuolo L, Imbimbo C, Boffo S, Angelillo IF, Di Domenico M. The Crosstalk between Prostate Cancer and Microbiota Inflammation: Nutraceutical Products Are Useful to Balance This Interplay? Nutrients 2020; 12:E2648. [PMID: 32878054 PMCID: PMC7551491 DOI: 10.3390/nu12092648] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/25/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022] Open
Abstract
The human microbiota shows pivotal roles in urologic health and disease. Emerging studies indicate that gut and urinary microbiomes can impact several urological diseases, both benignant and malignant, acting particularly on prostate inflammation and prostate cancer. Indeed, the microbiota exerts its influence on prostate cancer initiation and/or progression mechanisms through the regulation of chronic inflammation, apoptotic processes, cytokines, and hormonal production in response to different pathogenic noxae. Additionally, therapies' and drugs' responses are influenced in their efficacy and tolerability by microbiota composition. Due to this complex potential interconnection between prostate cancer and microbiota, exploration and understanding of the involved relationships is pivotal to evaluate a potential therapeutic application in clinical practice. Several natural compounds, moreover, seem to have relevant effects, directly or mediated by microbiota, on urologic health, posing the human microbiota at the crossroad between prostatic inflammation and prostate cancer development. Here, we aim to analyze the most recent evidence regarding the possible crosstalk between prostate, microbiome, and inflammation.
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Affiliation(s)
- Felice Crocetto
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples “Federico II”, 80135 Naples, Italy; (F.C.); (B.B.); (C.I.)
| | - Mariarosaria Boccellino
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80135 Naples, Italy; (M.B.); (G.G.); (G.S.); (L.Q.); (M.D.D.)
| | - Biagio Barone
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples “Federico II”, 80135 Naples, Italy; (F.C.); (B.B.); (C.I.)
| | - Erika Di Zazzo
- Department of Health Science “V. Tiberio”, 86100 Campobasso, Italy
| | - Antonella Sciarra
- Department of Translational Medical Sciences, University of Campania Luigi Vanvitelli, 80135 Naples, Italy;
| | - Giovanni Galasso
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80135 Naples, Italy; (M.B.); (G.G.); (G.S.); (L.Q.); (M.D.D.)
| | - Giuliana Settembre
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80135 Naples, Italy; (M.B.); (G.G.); (G.S.); (L.Q.); (M.D.D.)
| | - Lucio Quagliuolo
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80135 Naples, Italy; (M.B.); (G.G.); (G.S.); (L.Q.); (M.D.D.)
| | - Ciro Imbimbo
- Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples “Federico II”, 80135 Naples, Italy; (F.C.); (B.B.); (C.I.)
| | - Silvia Boffo
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, 19122 PA, USA;
| | | | - Marina Di Domenico
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80135 Naples, Italy; (M.B.); (G.G.); (G.S.); (L.Q.); (M.D.D.)
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, 19122 PA, USA;
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Ala-Almohadesin A, Mohammadbeygi M, Bahavar A, Mohammadi MA, Mohamadzadeh N, Abolhasani M, Dabiri H. Molecular Detection of Pathogens Causing Sexually Transmissible Infections in Patients with Prostate Cancer and Hyperplasia by Quantitative TaqMan Real-Time PCR Assay. Clin Lab 2020; 65. [PMID: 31307183 DOI: 10.7754/clin.lab.2019.181243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Prostate cancer is considered the most prevalent cancer among men. Recent studies suggest that sex-ually transmissible infections (STIs) may be related to prostate carcinogenesis. Therefore, the aim of this study was to investigate whether STI pathogens (Atopobium vaginae (ATO), Neisseria gonorrhoeae (NG), Chlamydia tra-chomatis (CT), Treponema pallidum (TP), Ureaplasma urealyticum (UU), Gardnerella vaginalis (GV), Herpes Sim-plex Virus (HSV), Cytomegalovirus (CMV), Human herpesvirus (HHV), Human papillomavirus (HPV), and Tricho-monas vaginalis (TV)) presence in prostate tissues are associated with the risk of prostate cancer. METHODS Paraffin-embedded prostate tissues obtained from patients with hyperplasia and prostate cancer were extracted. Determination of infectious microorganisms of interest was done by quantitative TaqMan real-time PCR assay. RESULTS STI DNA was detected in 53/243 (21.8%) of the prostate tissues samples (ATO 3.7%, UU 2.88%, GV 2.46%, HSV-2 2.05%, CT 2.05%, CMV 1.64%, NG 1.64%, TP 1.64%, HHV-8 1.23%, HPV 1.23%, and TV 1.23%.) The statistical analysis revealed significant correlation between prevalence of Gardnerella vaginalis (GV) and Herpes Simplex Virus (HSV-2) between hyperplasia and cancerous groups (p = 0.02), respectively. CONCLUSIONS No statistically significant difference was observed in the prevalence of most candidate infectious or-ganisms between hyperplasia and cancerous groups except for GV and HSV-2. It appears that inflammation in the prostate gland is more associated with prostate hyperplasia than prostate cancer. According to the role of in-fectious microorganisms in induction of chronic inflammation, we cannot exclude the importance of these patho-gens in progression of cancer. More studies are required to explore the associations of cancer with different infec-tious organisms.
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Nakamura K, Ikawa K, Nishikawa G, Kobayashi I, Tobiume M, Sugie M, Muramatsu H, Morinaga S, Kajikawa K, Watanabe M, Kanao K, Onita T, Morikawa N. Clinical pharmacokinetics of flomoxef in prostate tissue and dosing considerations for prostatitis based on site-specific pharmacodynamic target attainment. J Infect Chemother 2019; 26:236-241. [PMID: 31822449 DOI: 10.1016/j.jiac.2019.08.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/22/2019] [Accepted: 08/29/2019] [Indexed: 11/18/2022]
Abstract
Flomoxef is used to treat bacterial prostatitis; however, its prostatic pharmacokinetics have not been fully clarified. Flomoxef (500 or 1000 mg) was administered to patients with benign prostatic hypertrophy (n = 54). After a 0.5-h infusion, venous blood samples were drawn at time points of 0.5-5 h, and prostate tissue samples were collected at time points of 0.5-1.5 h during transurethral resection of the prostate. The drug concentrations in plasma and prostate tissue were analyzed pharmacokinetically and used for a stochastic simulation to predict the probability of attaining pharmacodynamic target in prostate tissue. Showing dose linearity in the prostatic pharmacokinetics, flomoxef rapidly penetrated into prostate tissue, with a prostate/plasma ratio of 0.48-0.50 (maximum drug concentration) and 0.42-0.55 (area under the drug concentration-time curve). Against the tested populations of Escherichia coli, Klebsiella and Proteus species isolates, 0.5-h infusion of 1000 mg three times daily achieved a ≥90% expected probability of attaining the bactericidal target (70% of the time above the minimum inhibitory concentration [MIC]) in prostate tissue. The site-specific pharmacodynamic-based breakpoint (the highest MIC at which the target-attainment probability in prostate tissue was >90%) values were 0.25 mg/L (MIC for 90th percentile of E. coli and Klebsiella species) for 500 mg four times daily and 0.5 mg/L (MIC90 of Proteus species) for 1000 mg four times daily. These results help to fully characterize the prostatic pharmacokinetics of flomoxef, while also helping to rationalize and optimize the dosing regimens for prostatitis based on site-specific pharmacodynamic target attainment.
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Affiliation(s)
- Kogenta Nakamura
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Kazuro Ikawa
- Department of Clinical Pharmacotherapy, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
| | - Genya Nishikawa
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Ikuo Kobayashi
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Motoi Tobiume
- Department of Urology, Asahi Rousai Hospital, Nagoya, Aichi, 488-8585, Japan
| | - Miho Sugie
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Hiroyuki Muramatsu
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Shingo Morinaga
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Keishi Kajikawa
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Masahito Watanabe
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Kent Kanao
- Department of Urology, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Tetsushu Onita
- Department of Clinical Pharmacotherapy, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Norifumi Morikawa
- Department of Clinical Pharmacotherapy, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
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8
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Feng Y, Jaratlerdsiri W, Patrick SM, Lyons RJ, Haynes A, Collins CC, Stricker PD, Bornman MR, Hayes VM. Metagenomic analysis reveals a rich bacterial content in high-risk prostate tumors from African men. Prostate 2019; 79:1731-1738. [PMID: 31454437 PMCID: PMC6790596 DOI: 10.1002/pros.23897] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 08/06/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Inflammation is a hallmark of prostate cancer (PCa), yet no pathogenic agent has been identified. Men from Africa are at increased risk for both aggressive prostate disease and infection. We hypothesize that pathogenic microbes may be contributing, at least in part, to high-risk PCa presentation within Africa and in turn the observed ethnic disparity. METHODS Here we reveal through metagenomic analysis of host-derived whole-genome sequencing data, the microbial content within prostate tumor tissue from 22 men. What is unique about this study is that patients were separated by ethnicity, African vs European, and environments, Africa vs Australia. RESULTS We identified 23 common bacterial genera between the African, Australian, and Chinese prostate tumor samples, while nonbacterial microbes were notably absent. While the most abundant genera across all samples included: Escherichia, Propionibacterium, and Pseudomonas, the core prostate tumor microbiota was enriched for Proteobacteria. We observed a significant increase in the richness of the bacterial communities within the African vs Australian samples (t = 4.6-5.5; P = .0004-.001), largely driven by eight predominant genera. Considering core human gut microbiota, African prostate tissue samples appear enriched for Escherichia and Acidovorax, with an abundance of Eubacterium associated with host tumor hypermutation. CONCLUSIONS Our study provides suggestive evidence for the presence of a core, bacteria-rich, prostate microbiome. While unable to exclude for fecal contamination, the observed increased bacterial content and richness within the African vs non-African samples, together with elevated tumor mutational burden, suggests the possibility that bacterially-driven oncogenic transformation within the prostate microenvironment may be contributing to aggressive disease presentation in Africa.
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Affiliation(s)
- Ye Feng
- Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Institute of Translational MedicineZhejiang University School of MedicineHangzhouChina
| | - Weerachai Jaratlerdsiri
- Laboratory for Human Comparative and Prostate Cancer Genomics, Garvan Institute of Medical ResearchThe Kinghorn Cancer CentreDarlinghurstNew South WalesAustralia
| | - Sean M. Patrick
- School of Health Systems and Public HealthUniversity of PretoriaPretoriaSouth Africa
| | - Ruth J. Lyons
- Laboratory for Human Comparative and Prostate Cancer Genomics, Garvan Institute of Medical ResearchThe Kinghorn Cancer CentreDarlinghurstNew South WalesAustralia
| | - Anne‐Maree Haynes
- Laboratory for Human Comparative and Prostate Cancer Genomics, Garvan Institute of Medical ResearchThe Kinghorn Cancer CentreDarlinghurstNew South WalesAustralia
| | - Colin C. Collins
- Vancouver Prostate CentreVancouverCanada
- Department of UrologyUniversity of British ColumbiaVancouverCanada
| | - Phillip D. Stricker
- Department of UrologySt Vincent's Hospital SydneyDarlinghurstNew South WalesAustralia
| | - M.S. Riana Bornman
- School of Health Systems and Public HealthUniversity of PretoriaPretoriaSouth Africa
| | - Vanessa M. Hayes
- Laboratory for Human Comparative and Prostate Cancer Genomics, Garvan Institute of Medical ResearchThe Kinghorn Cancer CentreDarlinghurstNew South WalesAustralia
- School of Health Systems and Public HealthUniversity of PretoriaPretoriaSouth Africa
- St Vincent's Clinical SchoolUniversity of New South Wales SydneySydneyNew South WalesAustralia
- Central Clinical School, Faculty of Medicine and HealthUniversity of SydneyCamperdownNew South WalesAustralia
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9
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Olmedo-Reneaum A, Garcia-Juarez I, Toapanta-Yanchapaxi L, De La Peña-López R, Rodríguez-Covarrubias F, Contreras AG, Cuellar-Rodriguez JM. Rogue "stem cell clinic" leads to Mycobacterium abscessus infection. Lancet 2019; 393:918. [PMID: 30837150 DOI: 10.1016/s0140-6736(19)30299-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 11/16/2018] [Accepted: 01/25/2019] [Indexed: 11/17/2022]
Affiliation(s)
| | | | | | | | | | | | - Jennifer M Cuellar-Rodriguez
- Department of Infectious Diseases, Fundación Clínica Médica Sur and Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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10
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Murphy SF, Anker JF, Mazur DJ, Hall C, Schaeffer AJ, Thumbikat P. Role of gram-positive bacteria in chronic pelvic pain syndrome (CPPS). Prostate 2019; 79:160-167. [PMID: 30242864 PMCID: PMC6623965 DOI: 10.1002/pros.23721] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/05/2018] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Chronic pelvic pain syndrome (CPPS) is a complex disorder that affects a large proportion of all men. A limited understanding of its etiology and pathogenesis is reflected by the absence of effective therapies. Although CPPS is deemed clinically non-infectious with no well-defined etiological role for microbes, bacteria is readily isolated from both healthy and patient prostate secretion and urine samples. Our laboratory has previously demonstrated that a specific gram-negative bacterial isolate can induce CPPS-like symptoms in mice. Here we aimed to expand on these findings examining the role of gram-positive patient-derived bacteria in CPPS. METHODS A retrospective analysis of bacterial cultures from CPPS patients from a single center was performed. Gram-positive bacteria were isolated from the expressed prostatic secretion (EPS) of three CPPS-patients (pain inducers, PI) and one from a healthy volunteer (non-pain inducer, NPI). These bacteria were inoculated intra-urethrally in two mouse backgrounds and analyzed for their ability to induce tactile allodynia, voiding dysfunction, and colonize the murine prostate. Host immune responses to bacterial instillation were analyzed by flow cytometry. RESULTS PI strains (Staphylococcus haemolyticus 2551, Enterococcus faecalis 427, and Staphylococcus epidermidis 7244) induced and maintained tactile allodynia responses (200% increase above baseline) for 28 days in NOD/ShiLtJ mice. Conversely the healthy subject derived strain (Staphylococcus epidermidis NPI) demonstrated no significant pelvic allodynia induction. Intra-urethral inoculation of the four bacterial strains into C57BL/6 mice did not induce significant increases in pain responses. Infected NOD/ShiLtJ displayed significant voiding dysfunction compared to their control counterparts. Colony counts of prostate tissues from both NOD/ShiLtJ and C57BL/6 mice at day 28 demonstrated that bacterial strains colonized equally well, including NPI. We also determined that mechanistically, the patient-isolates induced prostate inflammation specifically involving T-cells and monocytes. CONCLUSIONS Gram-positive isolates from CPPS patients showed enhanced ability to induce tactile allodynia compared to a single taxonomically similar gram-positive strain isolated from a healthy control. Responses were shown to be dependent on host genetic background and not on colonization differences between strains.
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Affiliation(s)
- Stephen F. Murphy
- Dept. of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Jonathan F. Anker
- Dept. of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Daniel J. Mazur
- Dept. of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Christel Hall
- Dept. of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Anthony J. Schaeffer
- Dept. of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Praveen Thumbikat
- Dept. of Urology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
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11
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Yoon BI, Bae WJ, Choi YS, Kim SJ, Ha US, Hong SH, Sohn DW, Kim SW. Anti-inflammatory and Antimicrobial Effects of Anthocyanin Extracted from Black Soybean on Chronic Bacterial Prostatitis Rat Model. Chin J Integr Med 2018; 24:621-626. [PMID: 24126975 DOI: 10.1007/s11655-013-1547-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2013] [Indexed: 01/21/2023]
Abstract
OBJECTIVE To investigated the anti-inflammatory and antimicrobial effects of anthocyanins extracted from black soybean on the chronic bacterial prostatitis (CBP) rat model. METHODS The Sprague-Dawley rats were divided into 4 groups, including control, ciprofloxacin, anthocyanins and anthocyanins with ciprofloxacin groups (n=8 in each group). Then, drip infusion of bacterial suspension (Escherichia coli Z17 O2:K1:H-) into Sprague-Dawley rats was conducted to induce CBP. In 4 weeks, results of prostate tissue, urine culture, and histological analysis on the prostate were analyzed for each group. RESULTS The use of ciprofloxacin, anthocyanins, and anthocyanins with ciprofloxacin showed statistically significant decreases in bacterial growth and improvements in the reduction of prostatic inflammation compared with the control group (P<0.05). The anthocyanins with ciprofloxacin group showed a statistically significant decrease in bacterial growth and improvement in prostatic inflammation compared with the ciprofloxacin group (P<0.05). CONCLUSIONS These results suggest that anthocyanins may have anti-inflammatory and antimicrobial effects, as well as a synergistic effect with ciprofloxacin. Therefore, we suggest that the combination of anthocyanins and ciprofloxacin may be effective in treating CBP to obtain a higher rate of treatment success.
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Affiliation(s)
- Byung Il Yoon
- Department of Urology, International St Mary's Hospital, The Catholic Kwandong University of Korea, Incheon, Republic of Korea
| | - Woong Jin Bae
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yong Sun Choi
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Su Jin Kim
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - U Syn Ha
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Hoo Hong
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong Wan Sohn
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sae Woong Kim
- Department of Urology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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12
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Seo Y, Lee G. New Bacterial Infection in the Prostate after Transrectal Prostate Biopsy. J Korean Med Sci 2018; 33:e126. [PMID: 29686597 PMCID: PMC5909103 DOI: 10.3346/jkms.2018.33.e126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 02/27/2018] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The prostate is prone to infections. Hypothetically, bacteria can be inoculated into the prostate during a transrectal prostate biopsy (TRPB) and progress into chronic bacterial prostatitis. Therefore, we examined new bacterial infections in biopsied prostates after TRPB and whether they affect clinical characteristics in the biopsied patients. METHODS Of men whose prostate cultures have been taken prior to TRPB, 105 men with bacteria-free benign prostate pathology underwent an additional repeated prostate culture within a year after TRPB. RESULTS Twenty out of 105 men (19.05%) acquired new bacteria in their naïve prostates after TRPB. Except for one single case of Escherichia coli infection, 19 men had acquired gram-positive bacteria species. Between the culture-positive and negative groups, there were no significant differences in age, serum prostate-specific antigen (PSA) level, white blood cell (WBC) counts in expressed prostatic secretion (EPS), prostate volume, symptom severities in Korean version of the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) questionnaire, and patient-specific risk factors for biopsy associated infectious complications. Additionally, the TRPB procedure increased the WBC counts in post-biopsy EPS (P = 0.031, McNemar test), but did not increase the serum PSA level and symptoms of NIH-CPSI in 20 men who acquired new bacteria after TRPB. CONCLUSION The TRPB procedure was significantly associated with acquiring new bacterial infections in the biopsied prostate, but these localized bacteria did not affect patients' serum PSA level and symptoms after biopsy.
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Affiliation(s)
- Yumi Seo
- Department of Urology, Dankook University College of Medicine, Cheonan, Korea
| | - Gilho Lee
- Department of Urology, Dankook University College of Medicine, Cheonan, Korea
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13
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Smelov V, Thomas P, Ouburg S, Morré SA. Prevalence of genital Chlamydia trachomatis infections in Russia: systematic literature review and multicenter study. Pathog Dis 2017; 75:3983168. [PMID: 28830072 DOI: 10.1093/femspd/ftx081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 07/19/2017] [Indexed: 11/13/2022] Open
Abstract
A reliable overview of data on the prevalence of Chlamydia trachomatis (CT) in Russia is lacking and needed. All the available data on CT prevalence were analyzed in a systematic literature review on CT prevalence in Russia, strengthened with data from the multicenter study among 1263 people in the second-largest Russian megalopolis, St. Petersburg, testing for CT DNA in urethral, anal, cervical and prostate samples. A total of 10 articles met the inclusion criteria. The overall average prevalence of genital CT infections in Russian populations ranged from 2.9% to 33%. Risk factors included being symptomatic (P = 0.004; in men P < 0.001), being younger than 30 years (P = 0.001) and being a man who has sex with men (MSM) (P = 0.0084). Main limitations included the lack of studies in MSM. CT prevalence was higher in the groups where urethral and prostate secretion samples were pooled (5.2%-7.3% vs 3.2% in the urethra only). The data on CT prevalence in a range of Russian populations are analyzed and reported. Prostate secretions represent an additional sampling material for the study of CT infection in men. CT detection in some settings in St. Petersburg yielded levels of reliability comparable with internationally available tests. The initiation of screening programs for Chlamydia infections in Russia should be considered.
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Affiliation(s)
- Vitaly Smelov
- Institute of Public Health Genomics, Department of Genetics and Cell Biology, Research Institute GROW (School for Oncology and Developmental Biology), Faculty of Health, Medicine and Life Sciences, University of Maastricht, 6200 MD Maastricht, the Netherlands
- Laboratory of Immunogenetics, Department of Medical Microbiology and Infection Control, VU University Medical Center, 1081 HX Amsterdam, the Netherlands
- Prevention and Implementation Group, International Agency for Research on Cancer, World Health Organization, 69372 Lyon, France
- Department of Urology, North-Western State Medical University named after I.I. Mechnikov, 191015 St. Petersburg, Russian Federation
| | - Pierre Thomas
- Institute of Public Health Genomics, Department of Genetics and Cell Biology, Research Institute GROW (School for Oncology and Developmental Biology), Faculty of Health, Medicine and Life Sciences, University of Maastricht, 6200 MD Maastricht, the Netherlands
| | - Sander Ouburg
- Laboratory of Immunogenetics, Department of Medical Microbiology and Infection Control, VU University Medical Center, 1081 HX Amsterdam, the Netherlands
| | - Servaas A Morré
- Institute of Public Health Genomics, Department of Genetics and Cell Biology, Research Institute GROW (School for Oncology and Developmental Biology), Faculty of Health, Medicine and Life Sciences, University of Maastricht, 6200 MD Maastricht, the Netherlands
- Laboratory of Immunogenetics, Department of Medical Microbiology and Infection Control, VU University Medical Center, 1081 HX Amsterdam, the Netherlands
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14
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Colinot DL, Garbuz T, Bosland MC, Wang L, Rice SE, Sullivan WJ, Arrizabalaga G, Jerde TJ. The common parasite Toxoplasma gondii induces prostatic inflammation and microglandular hyperplasia in a mouse model. Prostate 2017; 77:1066-1075. [PMID: 28497488 PMCID: PMC6826344 DOI: 10.1002/pros.23362] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 04/14/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Inflammation is the most prevalent and widespread histological finding in the human prostate, and associates with the development and progression of benign prostatic hyperplasia and prostate cancer. Several factors have been hypothesized to cause inflammation, yet the role each may play in the etiology of prostatic inflammation remains unclear. This study examined the possibility that the common protozoan parasite Toxoplasma gondii induces prostatic inflammation and reactive hyperplasia in a mouse model. METHODS Male mice were infected systemically with T. gondii parasites and prostatic inflammation was scored based on severity and focality of infiltrating leukocytes and epithelial hyperplasia. We characterized inflammatory cells with flow cytometry and the resulting epithelial proliferation with bromodeoxyuridine (BrdU) incorporation. RESULTS We found that T. gondii infects the mouse prostate within the first 14 days of infection and can establish parasite cysts that persist for at least 60 days. T. gondii infection induces a substantial and chronic inflammatory reaction in the mouse prostate characterized by monocytic and lymphocytic inflammatory infiltrate. T. gondii-induced inflammation results in reactive hyperplasia, involving basal and luminal epithelial proliferation, and the exhibition of proliferative inflammatory microglandular hyperplasia in inflamed mouse prostates. CONCLUSIONS This study identifies the common parasite T. gondii as a new trigger of prostatic inflammation, which we used to develop a novel mouse model of prostatic inflammation. This is the first report that T. gondii chronically encysts and induces chronic inflammation within the prostate of any species. Furthermore, T. gondii-induced prostatic inflammation persists and progresses without genetic manipulation in mice, offering a powerful new mouse model for the study of chronic prostatic inflammation and microglandular hyperplasia.
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Affiliation(s)
- Darrelle L. Colinot
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Tamila Garbuz
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Maarten C. Bosland
- Department of Pathology, University of Illinois-Chicago, Chicago, Illinois
| | - Liang Wang
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Susan E. Rice
- Indiana University Melvin and Bren Simon Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana
| | - William J. Sullivan
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Gustavo Arrizabalaga
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Travis J. Jerde
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
- Indiana University Melvin and Bren Simon Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana
- Department of Urology/Indiana Basic Urological Research Program, Indiana University School of Medicine and Purdue University Center for Cancer Research, Indianapolis, Indiana
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15
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Ho CH, Fan CK, Yu HJ, Wu CC, Chen KC, Liu SP, Cheng PC. Testosterone suppresses uropathogenic Escherichia coli invasion and colonization within prostate cells and inhibits inflammatory responses through JAK/STAT-1 signaling pathway. PLoS One 2017; 12:e0180244. [PMID: 28665978 PMCID: PMC5493373 DOI: 10.1371/journal.pone.0180244] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 06/12/2017] [Indexed: 12/30/2022] Open
Abstract
Prostatitis is a common condition in adult men of all ages. Uropathogenic Escherichia coli (UPEC) are most frequent pathogen involved in bacterial prostatitis by refluxing the infected urine into prostatic ducts and resulting in an ascending urethral infection. However, the study about the mechanisms of UPEC to invade, replicate and persist in normal prostate epithelial cell is only few. Given the fact that UPEC is pathogen most frequently involved in prostatitis and that testosterone has been demonstrated to attenuate prostate inflammation caused by other etiologies. In this study we investigated whether the testosterone reduces the prostatitis and related mechanism by regulating IFN-γ/STAT1 signaling pathway. In the current study aimed to clarify whether testosterone influences the process of UPEC-induced prostate inflammation and invasion into the prostate epithelial cells. In addition, we set up a normal prostate cell model for UPEC infection to evaluate the ability to invade the urothelial cells as well as the colonization of intercellular bacterial communities in vitro. By using the model, we examine the effects of testosterone to suppress effectively the invasion and survival of UPEC in the prostate cells, and inhibit LPS-induced inflammatory responses through the JAK/STAT1 pathway have also been indicated. Our results demonstrated testosterone not only suppressed the invasion and colonization of UPEC, but also inhibited the expression of pro-inflammatory IL-1β, IL-6 and IL-8 cytokines expression induced by UPEC in a dose-dependent manner. We found the effective dose of testosterone to suppress UPEC infect prostate cells may be appropriate under 40μg/ml. Our data also revealed 20μg/ml testosterone treated PZ-HPV-7 cells significantly suppressed the LPS-induced JAK/STAT1 pathway and inflammatory responses, and reached to maximal effects at 40μg/ml treatment. These results indicate that testosterone plays an anti-inflammatory role in LPS-induced prostate cell inflammation by down-regulating JAK/STAT1 signaling pathway. Interestingly, the JAK inhibitor and testosterone for 24hr pretreatment rather markedly induced the colonization of UPEC in the PZ-HPV-7 cells. Based on the above data, the suppression of UPEC colonization in the prostate cells by testosterone seems to be unrelated with JAK/STAT signaling pathway, whereas the JAK may involve into the UPEC infection. Summing up these data, our findings have demonstrated the suppressive effects of testosterone on the invasion and survival of UPEC and induced inflammation in prostate epithelial cells. These findings indicate the action mechanism of testosterone as an anti-inflammatory mediator in the prostate cells is regulated through JAK/STAT1 signaling pathway, may be beneficial in treating prostate inflammation. Altogether, this study has provided the possibility that using testosterone in the prevention and clinical treatment of prostatitis is a new direction.
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Affiliation(s)
- Chen-Hsun Ho
- Department of Urology, School of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Urology, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan
| | - Chia-Kwung Fan
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, Taipei Medical University, Taipei, Taiwan
- Center for International Tropical Medicine, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hong-Jeng Yu
- Department of Urology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Chia-Chang Wu
- Department of Urology, School of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Urology, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan
| | - Kuan-Chou Chen
- Department of Urology, School of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Urology, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan
| | - Shih-Ping Liu
- Department of Urology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
- * E-mail: (PCC); (SPL)
| | - Po-Ching Cheng
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, Taipei Medical University, Taipei, Taiwan
- Center for International Tropical Medicine, School of Medicine, Taipei Medical University, Taipei, Taiwan
- * E-mail: (PCC); (SPL)
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16
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Sanchez LR, Breser ML, Godoy GJ, Salazar FC, Mackern-Oberti JP, Cuffini C, Motrich RD, Rivero VE. Chronic Infection of the Prostate by Chlamydia muridarum Is Accompanied by Local Inflammation and Pelvic Pain Development. Prostate 2017; 77:517-529. [PMID: 28093789 DOI: 10.1002/pros.23291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/18/2016] [Indexed: 11/06/2022]
Abstract
BACKGROUND Chlamydia trachomatis urogenital infections are the leading cause of sexually transmitted bacterial infections. Although the prevalence of chlamydial infection is similar in men and women, current research is mainly focused on women, neglecting the study of male genital tract infections. We, therefore, investigated Chlamydia infection in the rodent male genital tract. MATERIALS AND METHODS Male NOD and C57BL/6 mice were inoculated in the meatus urethra with C. muridarum. Bacterial DNA, leukocyte infiltration of male genital tract tissues, pelvic pain, and Chlamydia-specific immune responses were analyzed at different time points. RESULTS AND CONCLUSIONS The inoculation of C. muridarum in the meatus urethra of male mice resulted in an ascending and widely disseminated infection of the male genital tract. C. muridarum remained longer and with the highest bacterial burdens in the prostate, thus showing a special tropism for this organ. Infection caused leukocyte infiltration, mainly composed by neutrophils, and also induced early pelvic pain development that rapidly dropped and resolved as the infection became chronic. Bacterial load and leukocyte infiltration was observed in all prostate lobes, although dorsolateral prostate was the most affected lobe. Interestingly, immune responses induced by both mice strains were characterized by the production of high levels of IL-10 during early stages of the infection, with highest and sustained levels observed in NOD mice, which showed to be less efficient in clearing the infection. Chronic infection of the prostate accompanied by local inflammation and pelvic pain development described herein have important implications for the improvement of the diagnosis and for the design of new efficient therapies. Prostate 77:517-529, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Leonardo R Sanchez
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI)-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Maria L Breser
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI)-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Gloria J Godoy
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI)-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Florencia C Salazar
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI)-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Juan P Mackern-Oberti
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU-CCT Mendoza, CONICET), Mendoza, Argentina
- Instituto de Fisiología, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Cecilia Cuffini
- Instituto de Virología "Dr. J. M. Vanella", Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Ruben D Motrich
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI)-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Virginia E Rivero
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI)-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
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17
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Kakegawa T, Bae Y, Ito T, Uchida K, Sekine M, Nakajima Y, Furukawa A, Suzuki Y, Kumagai J, Akashi T, Eishi Y. Frequency of Propionibacterium acnes Infection in Prostate Glands with Negative Biopsy Results Is an Independent Risk Factor for Prostate Cancer in Patients with Increased Serum PSA Titers. PLoS One 2017; 12:e0169984. [PMID: 28081259 PMCID: PMC5231393 DOI: 10.1371/journal.pone.0169984] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 12/27/2016] [Indexed: 11/18/2022] Open
Abstract
Background Propionibacterium acnes has recently been implicated as a cause of chronic prostatitis and this commensal bacterium may be linked to prostate carcinogenesis. The occurrence of intracellular P. acnes infection in prostate glands and the higher frequency of P. acnes-positive glands in radical prostatectomy specimens from patients with prostate cancer (PCa) than in those from patients without PCa led us to examine whether the P. acnes-positive gland frequency can be used to assess the risk for PCa in patients whose first prostate biopsy, performed due to an increased prostate-specific antigen (PSA) titer, was negative. Methods We retrospectively collected the first and last prostate biopsy samples from 44 patients that were diagnosed PCa within 4 years after the first negative biopsy and from 36 control patients with no PCa found in repeated biopsy for at least 3 years after the first biopsy. We evaluated P. acnes-positive gland frequency and P. acnes-positive macrophage number using enzyme-immunohistochemistry with a P. acnes-specific monoclonal antibody (PAL antibody). Results The frequency of P. acnes-positive glands was higher in PCa samples than in control samples in both first biopsy samples and in combined first and last biopsy samples (P < 0.001). A frequency greater than the threshold (18.5 and 17.7, respectively) obtained by each receiver operating characteristic curve was an independent risk factor for PCa (P = 0.003 and 0.001, respectively) with odds ratios (14.8 and 13.9, respectively) higher than those of serum PSA titers of patients just before each biopsy (4.6 and 2.3, respectively). The number of P. acnes-positive macrophages did not differ significantly between PCa and control samples. Conclusions These results suggested that the frequency of P. acnes-positive glands in the first negative prostate biopsy performed due to increased PSA titers can be supportive information for urologists in planning repeated biopsy or follow-up strategies.
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Affiliation(s)
- Tomoya Kakegawa
- Department of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuan Bae
- Division of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Takashi Ito
- Department of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keisuke Uchida
- Division of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Masaki Sekine
- Division of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Yutaka Nakajima
- Division of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Asuka Furukawa
- Department of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshimi Suzuki
- Department of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Jiro Kumagai
- Department of Pathology, Yokohama City Minato Red Cross Hospital, Yokohama, Japan
| | - Takumi Akashi
- Division of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, Japan
| | - Yoshinobu Eishi
- Department of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
- Division of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, Japan
- * E-mail:
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Osadchii AV, Kulchavenya EV, Brizhatyuk EV. [Anthropomorphic features of patients with tuberculosis of the prostate]. Urologiia 2016:76-78. [PMID: 28247634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Modern TB patient has lost the physical appearance (habitus phtisicus) typical for the previous years. Moreover, patients with different tuberculosis localizations also have different anthropomorphic characteristics. MATERIAL AND METHODS To determine anthropomorphic characteristics of patients with tuberculosis of the prostate, several parameters were compared between 95 male patients with pulmonary tuberculosis and 49 patients with prostatic tuberculosis. RESULTS Compared to pulmonary tuberculosis patients, patients with prostatic tuberculosis were significantly more likely to be overweight and have greater waist circumference. Among patients with pulmonary tuberculosis, there were significantly more people of short or very tall stature, while patients with prostatic tuberculosis, on the contrary, were significantly more likely to be of average height (166-180 cm). CONCLUSIONS The findings regarding body structure of a patient with tuberculosis of the prostate (fat stocky man) could possibly reflect the presence of the metabolic syndrome that may account for the greater susceptibility to urogenital infections.
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Affiliation(s)
- A V Osadchii
- Novosibirsk Tuberculosis Research Institute of Minzdrav of Russia
- Novosibirsk State Medical University of Minzdrav of Russia
| | - E V Kulchavenya
- Novosibirsk Tuberculosis Research Institute of Minzdrav of Russia
- Novosibirsk State Medical University of Minzdrav of Russia
| | - E V Brizhatyuk
- Novosibirsk Tuberculosis Research Institute of Minzdrav of Russia
- Novosibirsk State Medical University of Minzdrav of Russia
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Coker TJ, Dierfeldt DM. Acute Bacterial Prostatitis: Diagnosis and Management. Am Fam Physician 2016; 93:114-120. [PMID: 26926407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Acute bacterial prostatitis is an acute infection of the prostate gland that causes pelvic pain and urinary tract symptoms, such as dysuria, urinary frequency, and urinary retention, and may lead to systemic symptoms, such as fevers, chills, nausea, emesis, and malaise. Although the true incidence is unknown, acute bacterial prostatitis is estimated to comprise approximately 10% of all cases of prostatitis. Most acute bacterial prostatitis infections are community acquired, but some occur after transurethral manipulation procedures, such as urethral catheterization and cystoscopy, or after transrectal prostate biopsy. The physical examination should include abdominal, genital, and digital rectal examination to assess for a tender, enlarged, or boggy prostate. Diagnosis is predominantly made based on history and physical examination, but may be aided by urinalysis. Urine cultures should be obtained in all patients who are suspected of having acute bacterial prostatitis to determine the responsible bacteria and its antibiotic sensitivity pattern. Additional laboratory studies can be obtained based on risk factors and severity of illness. Radiography is typically unnecessary. Most patients can be treated as outpatients with oral antibiotics and supportive measures. Hospitalization and broad-spectrum intravenous antibiotics should be considered in patients who are systemically ill, unable to voluntarily urinate, unable to tolerate oral intake, or have risk factors for antibiotic resistance. Typical antibiotic regimens include ceftriaxone and doxycycline, ciprofloxacin, and piperacillin/tazobactam. The risk of nosocomial bacterial prostatitis can be reduced by using antibiotics, such as ciprofloxacin, before transrectal prostate biopsy.
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Affiliation(s)
- Timothy J Coker
- Ehrling Bergquist Family Medicine Residency Program, Offutt Air Force Base, NE, USA
| | - Daniel M Dierfeldt
- Ehrling Bergquist Family Medicine Residency Program, Offutt Air Force Base, NE, USA
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Verit A, Yüksel ÖH, Kivrak M, Yazicilar HA, Özbay N, Uruç F. Are Helicobacter Pylori and Benign Prostatic Hyperplasia Related, and If So, How? Urol J 2015; 12:2271-2275. [PMID: 26341771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 06/01/2015] [Accepted: 06/29/2015] [Indexed: 06/05/2023]
Abstract
PURPOSE Although many virulence factors have been defined for Helicobacter pylori (HP), vacuolating cytotoxin A (VacA) is known to be associated with apoptosis, the cag pathogenicity island protein (Cag-PAI), and growth factors. Both apoptosis and growth factors are thought to be related to the etiology of benign prostatic hyperplasia (BPH). Additionally, the relation between atherosclerosis-BPH and atherosclerosis-HP has also been reported in a limited number of studies. The aim of this pioneering study was to investigate the presence of HP in BPH patients who had undergone transurethral resection of prostate (TURP) and to discuss the potential pathophysiologic effects of HP on BPH. MATERIALS AND METHODS A total of 113 cases who underwent TURP due to infravesical obstruction due to BPH were included in the study. Preoperatively, parameters including, age, height, body weight, body mass index (BMI), prostate specific antigen (PSA), prostate volume (PVo), maximum urinary flow rate (Qmax), fasting plasma insulin, and International Prostate Symptom Score (IPSS)values were evaluated. The presence of HP was investigated in the prostate specimens with real-time polymerase chain reaction (RT-PCR) method. Postoperatively, histopathological evidence of chronic prostatitis (hCP) was also analyzed. RESULTS HP was detected in 1.8% (n = 2) of the participants. Additionally, hCP was observed in 58.4% (n = 66) of the 113 patients. The demographic and clinical parameters confirmed the presence of BPH disease. CONCLUSION Although BPH is a common disease, its physiologic etiology mechanisms are not clear. Based on our pilot study, despite its gastric location, we believe that HP should be considered in cases with clinical BPH because HP induces apoptosis and alterations in the equilibrium between apoptosis and local growth factors in addition to its recently demonstrated extragastric effects mediated via the atherosclerotic pathway. Although our uncontrolled pioneer study was not designed to investigate the pathophysiologic mechanism, the isolation of HP from prostatic adenoma suggests the need for further well-designed studies on this topic.
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Affiliation(s)
- Ayhan Verit
- Department of Urology, Fatih Sultan Mehmet Research and Training Hospital, Istanbul, Turkey.
| | - Özgür Haki Yüksel
- Department of Urology, Fatih Sultan Mehmet Research and Training Hospital, Istanbul, Turkey
| | - Mithat Kivrak
- Department of Urology, Fatih Sultan Mehmet Research and Training Hospital, Istanbul, Turkey
| | - Hanife Aydin Yazicilar
- Department of Clinical Microbiology, Fatih Sultan Mehmet Research and Training Hospital, Istanbul, Turkey
| | - Nurver Özbay
- Department of Pathology, Fatih Sultan Mehmet Research and Training Hospital, Istanbul, Turkey
| | - Fatih Uruç
- Department of Urology, Fatih Sultan Mehmet Research and Training Hospital, Istanbul, Turkey
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Atala A. Re: A Human Prostatic Bacterial Isolate Alters the Prostatic Microenvironment and Accelerates Prostate Cancer Progression. J Urol 2015; 194:849. [PMID: 26292899 DOI: 10.1016/j.juro.2015.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
Lower urinary tract symptoms (LUTS) including urinary frequency and nocturia are common in aging men. Recent studies have revealed a strong association of prostatic inflammation with LUTS. We developed an animal model of bacterial induced, isolated prostatic inflammation and examined the effect of prostatic inflammation on voiding behavior in adult C57BL/6J mice. Prostatic inflammation was induced by transurethral inoculation of uropathogenic E. coli—1677. Bacterial cystitis was prevented by continuous administration of nitrofurantoin. Hematoxylin and eosin (H&E) staining and bacterial culture were preformed to validate our animal model. Voiding behavior was examined by metabolic cage testing on post-instillation day 1 (PID 1), PID 4, PID 7 and PID 14 and both voiding frequency and volume per void were determined. Mice with prostatic inflammation showed significantly increased voiding frequency at PID 1, 7 and 14, and decreased volume per void at all time points, as compared to mice instilled with saline and receiving nitrofurantoin (NTF). Linked analysis of voiding frequency and voided volumes revealed an overwhelming preponderance of high frequency, low volume voiding in mice with prostatic inflammation. These observations suggest that prostatic inflammation may be causal for symptoms of urinary frequency and nocturia.
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Affiliation(s)
- Sanghee Lee
- Department of Urology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, United States of America
- Cellular and Molecular Biology Program, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Guang Yang
- Department of Urology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Wade Bushman
- Department of Urology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, United States of America
- Carbone Cancer Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, United States of America
- * E-mail:
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23
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Wang SX, Zhang JM, Wu K, Chen J, Shi JF. [Pathogens in expressed prostatic secretion and their correlation with serum prostate specific antigen: analysis of 320 cases]. Zhonghua Nan Ke Xue 2014; 20:715-718. [PMID: 25195368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To investigate the pathogenic infection and its drug resistance in expressed prostatic secretion (EPS) and its correlation with serum PSA, and provide some evidence for the systematic and normalized diagnosis and treatment of prostatitis. METHODS Three EPS swabs were collected from each of the 320 prostatis patients following measurement of the serum PSA level, 1 for bacterial culture and identification, 1 for detection of Mycoplasma and drug sensitivity, and the other for examination of Chlamydia trachomatis antigen by colloidal gold immunoblot. RESULTS Totally 244 strains were isolated from the 320 EPS samples, including 188 bacterial strains (dominated by Staphylococcus and sensitive to vancomycin or linezolid) and 44 Mycoplasma and Chlamydia strains (mainly Ureaplasma urealyticum and susceptible to josamycin or doxycycline). The serum PSA level was significantly higher in the pathogen-positive than in the pathogen-negative group ([6.98 +/- 0.56] microg/L vs [2.32 +/- 0.12] microg/L, P < 0.05). CONCLUSION Prostatitis may lead to the elevation of the serum PSA level and the pathogens involved vary in their resistance to different antibacterial spectrums. Therefore, appropriate and individualized antibiotic therapy should be selected according to etiological diagnosis and the results of drug sensitivity test.
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Seo MY, Im SJ, Gu NY, Kim JH, Chung YH, Ahn MH, Ryu JS. Inflammatory response of prostate epithelial cells to stimulation by Trichomonas vaginalis. Prostate 2014; 74:441-9. [PMID: 24339030 DOI: 10.1002/pros.22766] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 11/25/2013] [Indexed: 11/09/2022]
Abstract
BACKGROUND Trichomonas vaginalis is known as the most common cause of sexually transmitted infection. However, its prevalence may have been underestimated. Trichomonads are detected in prostatic tissue in benign prostatic hyperplasia, prostatitis, and prostate cancer. Our objective was to investigate whether T. vaginalis could induce an inflammatory response in prostate epithelium. METHODS The cytokine production by human prostate epithelial cell (RWPE-1) activated with T. vaginalis was determined by ELISA and real-time PCR. Intracellular ROS was evaluated by flow cytometry or spectrofluorometry. The protein levels of MAP kinase, NF-κB were analyzed by Western blot. The migration of neutrophil and monocyte were performed in 24-well microplates with filter insert. RESULTS Incubation of cells of a human prostate epithelial cell line with a live T. vaginalis T016 isolate increased expression of the inflammatory mediators IL-1β, CCL2, and CXCL8. In addition, ROS, MAPK, and NF-κB activities increased, while inhibitors of ROS, ERK, and NF-κB reduced IL-1β production. Medium conditioned by incubation of RWPE-1 cells with T. vaginalis contained IL-1β and stimulated the migration of human neutrophils and monocytes (THP-1 cell line). CONCLUSIONS We conclude that T. vaginalis may increase IL-1β expression in human prostate epithelium through activation of ROS, ERK, and NF-κB, and this in turn may induce the migration of neutrophils and monocytes and lead to an inflammatory response. This research is the first attempt to confirm inflammatory reaction caused by T. vaginalis in prostate epithelial cell.
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Affiliation(s)
- Min-Young Seo
- Department of Environmental Biology and Medical Parasitology, Hanyang University College of Medicine, Seoul, Korea
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Bae Y, Ito T, Iida T, Uchida K, Sekine M, Nakajima Y, Kumagai J, Yokoyama T, Kawachi H, Akashi T, Eishi Y. Intracellular Propionibacterium acnes infection in glandular epithelium and stromal macrophages of the prostate with or without cancer. PLoS One 2014; 9:e90324. [PMID: 24587325 PMCID: PMC3938683 DOI: 10.1371/journal.pone.0090324] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 01/29/2014] [Indexed: 01/08/2023] Open
Abstract
Background Recent reports on Propionibacterium acnes (P. acnes) suggest that this bacterium is prevalent in the prostate, is associated with acute and chronic prostatic inflammation, and might have a role in prostate carcinogenesis. Methods To evaluate the pathogenic role of this indigenous bacterium, we screened for the bacterium in radical prostatectomy specimens using enzyme immunohistochemistry with a novel P. acnes-specific monoclonal antibody (PAL antibody), together with an anti-nuclear factor-kappa B (NF-κB) antibody. We examined formalin-fixed and paraffin-embedded tissue sections of radical prostatectomy specimens from 28 patients with prostate cancer and 18 age-matched control patients with bladder cancer, but without prostate cancer. Results Immunohistochemistry with the PAL antibody revealed small round bodies within some non-cancerous glandular epithelium and stromal macrophages in most prostate samples. Prostate cancer samples had higher frequencies of either cytoplasmic P. acnes or nuclear NF-κB expression of glandular epithelium and higher numbers of stromal macrophages with P. acnes than control samples. These parameters were also higher in the peripheral zone than in the transitional zone of the prostate, especially in prostate cancer samples. Nuclear NF-κB expression was more frequent in glands with P. acnes than in glands without P. acnes. The number of stromal macrophages with the bacterium correlated with the grade of chronic inflammation in both the PZ and TZ areas and with the grade of acute inflammation in the TZ area. Conclusions Immunohistochemical analysis with a novel monoclonal antibody for detecting P. acnes in the prostate suggested that intraepithelial P. acnes infection in non-cancerous prostate glands and inflammation caused by the bacterium may contribute to the development of prostate cancer.
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Affiliation(s)
- Yuan Bae
- Department of Human Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
| | - Takashi Ito
- Department of Human Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
| | - Tadatsune Iida
- Department of Human Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
| | - Keisuke Uchida
- Division of Surgical Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
| | - Masaki Sekine
- Division of Surgical Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
| | - Yutaka Nakajima
- Division of Surgical Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
| | - Jiro Kumagai
- Department of Pathology, Yokohama City Minato Red Cross Hospital, Yokohama, Kanagawa, Japan
| | - Tetsuji Yokoyama
- Department of Health Promotion, National Institute of Public Health, Wako, Saitama, Japan
| | - Hiroshi Kawachi
- Department of Human Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
| | - Takumi Akashi
- Division of Surgical Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
| | - Yoshinobu Eishi
- Department of Human Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
- Division of Surgical Pathology, Tokyo Medical and Dental University Graduate School, Bunkyo-ku, Tokyo, Japan
- * E-mail:
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Ergakov DV, Martov AG. [Efficiency of safocid in the prevention of infectious and inflammatory complications after prostate biopsy]. Urologiia 2013:48-53. [PMID: 24649764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The article is dedicated to the evaluation of the efficacy and safety of use of combined drug "Safocid" during transrectal prostate biopsy. The study included 80 patients with suspected prostate cancer who had indications for prostate biopsy. The study group (n = 40) of patients has received safocid, the control group (n = 40) of patients--pefloxacin at a dose 400 mg twice a day. Patients treated with safotsid significantly less often have reported the development of febrile hyperthermia on the 1st day after the biopsy; there was no need for changing the drug in study group compared with 6 (15%) patients in the control group. The frequency of adverse effects was not significantly different in the groups. Another positive feature of safocid is its satisfactory compliance and psychological comfort of patients used this drug. The data obtained allow to recommend the use of safocid for antibacterial prophylaxis when performing a prostate biopsy.
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Fischer N, Mak TN, Shinohara DB, Sfanos KS, Meyer TF, Brüggemann H. Deciphering the intracellular fate of Propionibacterium acnes in macrophages. Biomed Res Int 2013; 2013:603046. [PMID: 23862148 PMCID: PMC3687600 DOI: 10.1155/2013/603046] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 05/07/2013] [Accepted: 05/22/2013] [Indexed: 01/19/2023]
Abstract
Propionibacterium acnes is a Gram-positive bacterium that colonizes various niches of the human body, particularly the sebaceous follicles of the skin. Over the last years a role of this common skin bacterium as an opportunistic pathogen has been explored. Persistence of P. acnes in host tissue has been associated with chronic inflammation and disease development, for example, in prostate pathologies. This study investigated the intracellular fate of P. acnes in macrophages after phagocytosis. In a mouse model of P. acnes-induced chronic prostatic inflammation, the bacterium could be detected in prostate-infiltrating macrophages at 2 weeks postinfection. Further studies performed in the human macrophage cell line THP-1 revealed intracellular survival and persistence of P. acnes but no intracellular replication or escape from the host cell. Confocal analyses of phagosome acidification and maturation were performed. Acidification of P. acnes-containing phagosomes was observed at 6 h postinfection but then lost again, indicative of cytosolic escape of P. acnes or intraphagosomal pH neutralization. No colocalization with the lysosomal markers LAMP1 and cathepsin D was observed, implying that the P. acnes-containing phagosome does not fuse with lysosomes. Our findings give first insights into the intracellular fate of P. acnes; its persistency is likely to be important for the development of P. acnes-associated inflammatory diseases.
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Affiliation(s)
- Natalie Fischer
- Unit Molecular Microbial Pathogenesis, Pasteur Institute, 75724 Paris, France
- Department of Molecular Biology, Max Planck Institute for Infection Biology, 10117 Berlin, Germany
| | - Tim N. Mak
- Department of Molecular Biology, Max Planck Institute for Infection Biology, 10117 Berlin, Germany
- Department of Biomedicine, Aarhus University, Wilhelm Meyers Allé 4, Bartholin Building, 8000 Aarhus C, Denmark
| | - Debika Biswal Shinohara
- Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21231, USA
| | - Karen S. Sfanos
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Thomas F. Meyer
- Department of Molecular Biology, Max Planck Institute for Infection Biology, 10117 Berlin, Germany
| | - Holger Brüggemann
- Department of Molecular Biology, Max Planck Institute for Infection Biology, 10117 Berlin, Germany
- Department of Biomedicine, Aarhus University, Wilhelm Meyers Allé 4, Bartholin Building, 8000 Aarhus C, Denmark
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Abstract
BACKGROUND Inflammation is commonly observed in radical prostatectomy specimens, and evidence suggests that inflammation may contribute to prostate carcinogenesis. Multiple microorganisms have been implicated in serving as a stimulus for prostatic inflammation. The pro-inflammatory anaerobe, Propionibacterium acnes, is ubiquitously found on human skin and is associated with the skin disease acne vulgaris. Recent studies have shown that P. acnes can be detected in prostatectomy specimens by bacterial culture or by culture-independent molecular techniques. METHODS Radical prostatectomy tissue samples were obtained from 30 prostate cancer patients and subject to both aerobic and anaerobic culture. Cultured species were identified by 16S rDNA gene sequencing. Propionibacterium acnes isolates were typed using multilocus sequence typing (MLST). RESULTS Our study confirmed that P. acnes can be readily cultured from prostatectomy tissues (7 of 30 cases, 23%). In some cases, multiple isolates of P. acnes were cultured as well as other Propionibacterium species, such as P. granulosum and P. avidum. Overall, 9 of 30 cases (30%) were positive for Propionibacterium spp. MLST analyses identified eight different sequence types (STs) among prostate-derived P. acnes isolates. These STs belong to two clonal complexes, namely CC36 (type I-2) and CC53/60 (type II), or are CC53/60-related singletons. CONCLUSIONS MLST typing results indicated that prostate-derived P. acnes isolates do not fall within the typical skin/acne STs, but rather are characteristic of STs associated with opportunistic infections and/or urethral flora. The MLST typing results argue against the likelihood that prostatectomy-derived P. acnes isolates represent contamination from skin flora.
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Affiliation(s)
- Tim N. Mak
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Biology, Max Planck Institute of Infection Biology, Berlin, Germany
| | - Shu-Han Yu
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Angelo M. De Marzo
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Holger Brüggemann
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Biology, Max Planck Institute of Infection Biology, Berlin, Germany
| | - Karen S. Sfanos
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Correspondence to: Karen S. Sfanos, Johns Hopkins University School of Medicine, 1550 Orleans Street, CRBII 1M43, Baltimore, MD 21287.
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Rakovskaia IV, Gorina LG, Balabanov DN, Levina GA, Barkhatova OI, Goncharova SA, Gamova NA. [Generalized mycoplasma infection in patients and carriers]. Zh Mikrobiol Epidemiol Immunobiol 2013:37-43. [PMID: 23805671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
AIM Study of possibility of generalization of mycoplasma infection in patients with urogenital pathology. MATERIALS AND METHODS Among the examined patients 5 males characterized by risky sexual behavior with pronounced symptoms of infection or without those were selected. Patients were examined by a complex of methods for the presence of mycoplasma infection by culture, PCR, DFA, PHA, AHR and by detection of specific immune complexes in blood sera. Scrapes from urogenital tract, blood sera samples, urine, saliva, prostatic fluid were materials for the study. RESULTS In blood of all patients in ELISA antibodies against Mycoplasma hominis were detected; in PHA they were detected only in 2 individuals. In all the patients in blood CIC were detected including antigens and DNA of one or several mycoplasma species. Sperm of 3 individuals was infected by Ureaplasma spp., 2--M. genitalium. In saliva of 2 individuals M. hominis was detected, 3--U. urealyticum. CONCLUSION In all the examined patients the infection was shown to have generalized character. This phenomenon presents itself as quite significant because mycoplasma may cause anti-apoptotic and oncogenic effect.
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Popov SV. [Rational antimicrobial therapy of chronic bacterial prostatitis]. Antibiot Khimioter 2013; 58:32-37. [PMID: 24757823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Olsson J, Drott JB, Laurantzon L, Laurantzon O, Bergh A, Elgh F. Chronic prostatic infection and inflammation by Propionibacterium acnes in a rat prostate infection model. PLoS One 2012; 7:e51434. [PMID: 23240022 PMCID: PMC3519880 DOI: 10.1371/journal.pone.0051434] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Accepted: 11/01/2012] [Indexed: 12/02/2022] Open
Abstract
Chronic inflammation in the prostate, seen as infiltration of inflammatory cells into the prostate gland in histological samples, affects approximately half the male population without indication of prostate disease, and is almost ubiquitous in patients diagnosed with benign prostate hyperplasia and cancer. Several studies have demonstrated the Gram-positive bacterium Propionibacterium acnes to be frequently present in prostate tissue from men suffering from prostate disease. P. acnes has been shown to be associated with histological inflammation in human prostatectomy specimens, and also to induce strong inflammatory response in prostate-derived tissue culture models. The present paper describes a rat model for assessment of the pathogenic potential of P. acnes in prostate. Prostate glands of Sprague Dawley rats (n = 98) were exposed via an abdominal incision and live P. acnes or, in control rats, saline were injected into the ventral and dorso-lateral lobes. Rats were sacrificed 5 days, 3 weeks, 3 months and 6 months post infection, and prostate tissue was analyzed for bacterial content and histological inflammation. Rat sera were assessed for levels of CRP and anti-P. acnes IgG. Live P. acnes could be recovered from the dorso-lateral lobes up to 3 months post infection, while the ventral lobes were cleared from bacteria at that time. In samples up to 3 months post infection, the dorso-lateral lobes exhibited intense focal inflammation. CRP and IgG levels were elevated throughout the span of the experiment, and reached maximum levels 3 weeks and 3 months post infection, respectively. We show that P. acnes have the potential to cause chronic infection in previously healthy prostate, and that the infection has potential to cause chronic histological inflammation in the infected tissue. The high prevalence of P. acnes in human prostate tissue calls for resolution of pathogenic details. The present rat model suggests that complications such as chronic inflammation may be induced by P. acnes infection.
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Affiliation(s)
- Jan Olsson
- Department of Clinical Microbiology, Virology, Umeå University, Umeå, Sweden.
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[Features of etiologic structure and factors of persistence of bacteria isolated during infection of lower urinary tract and chronic bacterial prostatitis]. Zh Mikrobiol Epidemiol Immunobiol 2012;:8-12. [PMID: 23163027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM Evaluate microbial specter and factors of persistence in facultative anaerobic bacteria isolated from urine during infection of lower urinary tract (ILUT) and secretion of prostate gland (SPG) during chronic bacterial prostatitis (CBP). MATERIALS AND METHODS Bacteriologic study of urine from 144 women (group I) during exacerbation of uncomplicated ILUT and SPG of 105 patients with CBP (group II) was carried out. Quantitative and qualitative composition of microflora as well as adhesive (AA) and anti-lysozyme (ALA) activity for entero-, coryneformic bacteria and hemolytic staphylococci was determined. RESULTS In groups I and II aerobic-anaerobic associations with domination of non-clostridial anaerobic bacteria, coagulase-negative staphylococci (CNS), coryneformic bacteria, for urine--enterobacteria were isolated from urin and SPG. S. haemolyticus strains predominated in the CNS group. In group I the frequency of detection of strains of enterobacteria and S. haemolyticus with high AA and ALA were higher (p < 0.05) compared with corynebacteria. In group II cultures of S. haemolyticus more frequently (p < 0.05) had AA and ALA compared with entero- and corynebacteria. CONCLUSION In etiologic structure of ILUT and CBP a tendency of shift of gram-negative flora to gram-positive is observed. Detection of AA and ALA in most of the S. haemolyticus and coryneformic bacteria gives evidence of their pathogenic and persistence potential.
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Plekhanov VN. [About the causes of inveterate cystitis in young women]. Voen Med Zh 2012; 333:31-35. [PMID: 23156110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
16 female patients,aged 28.6 +/- 3.2 years, with recrudescent inveterate cystitis were examined for the purpose of improvement of treatment of chronic cystitis. The examined patients noted relapse of disease after sex intercourse. Spectrum of diagnosed uropathogens in female patients corresponds to the structure of bacterio from urina taken after prostate milking and prostatic fluid of patients' intercourse partners. The given uropathogens also corresponds to the structure of contagium of urinary tract in young men. Connection between urogenital biotope and biotope of prostate as a vessel of persistence infection is related. Recrudescent inveterate cystitis in young women may be result from latent inveterate bacteritic prostatitis in their intercourse partners. Effectiveness of treatment and prophylaxis of recrudescence of inveterate cystitis in young women depends on timely diagnostics, treatment, and prophylaxis of inveterate bacteritic prostatitis in their intercourse partners.
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Letiaeva OI, Gizinger OA, Zigashin OR. [Chronic infection urethroprostatit: a new look at old problem]. Urologiia 2012:44-49. [PMID: 23116022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
An open, short-term, prospective, randomized study was conducted. 114 men with chronic urethroprostatitis against chlamydial-mycoplasmal infection, mean age 41,2 +/- 0,4 years, were observed. Follow investigations were performed: PCR, microscopic examination of urethral secretions and semen, transabdominal and transrectal ultrasound examination of prostate, evaluation of indicators of local and systemic immunity. In patients with chronic urethroprostatitis, abnormal urethral secretions were dominated; according to data of ultrasound examination, changes in the prostate were registered in all patients, as well as disturbances in cellular and humoral immunity. Depending on the method of treatment, patients were divided into two groups: Group 1 received an immunomodulator Lavomax and basic treatment: azithromycin at a dose 1.0 g once a week for 3 weeks, Celebrex, physiotherapy (low-intensity laser radiation), prostate massage; and Group 2 received only basic therapy. The control group consisted of 30 healthy men. The most pronounced normalization of cellular immunity (decreased number of leukocytes, reduction of lysosomal activity, increased activity and intensity of phagocytosis, and functional reserve of neutrophils in the ejaculate), as well as normalization of lymphocyte subpopulation composition, immunoregulatory index in the peripheral blood, and levels of IgA, IgG, IL-8, INF-gamma, resolution of clinical symptoms were observed among patients in Group 1. Moreover, the rate of elimination of infectious agents was significantly higher in Group 1. Thus, the use of immunomodulator Lavomax is pathogenetically substantiated treatment for chronic urethroprostatite against chlamydial and mycoplasmal infection, which allows to include Lavomax in a comprehensive treatment of this disease.
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Abstract
BACKGROUND Prostatic inflammation is gaining increasing attention as a potential etiologic factor in prostate cancer, benign prostatic hyperplasia, lower urinary tract symptoms, and CPPS. This study was performed to address the need for a well characterized model of acute prostatic inflammation that may be used to study the effect of acute inflammation on epithelial and stromal cell proliferation, voiding behavior, and neurovascular physiology. METHODS Uropathogenic E. coli 1677 was instilled transurethrally into adult C57BL/6J male mice. Prostates were analyzed at 1, 2, 3, 5, 7, or 14 days post-instillation and compared to saline-instilled and naïve controls. Time course and severity of inflammation were characterized by the quantity and type of inflammatory infiltrate present, hemorrhage, proliferation, and reactive hyperplasia. RT-PCR was performed to characterize inflammatory mediators including IL-1α, IL-1β, IL-1RA, IL-18, IL-6, IL-10, IL-8, TNFα, and COX-2. RESULTS Inflammation was evident in all lobes of the prostate with the DLP most severely affected. Infection consistently led to a significant increase in neutrophils and macrophages in the early stages of prostate infection, followed by lymphocytic inflammation at the later time points. Inflammation was accompanied by induction of several inflammatory genes, including IL-1 family members, IL-6, and COX-2, and induced a significant increase in epithelial proliferation and reactive hyperplasia in all three prostate lobes. CONCLUSIONS Transurethral inoculation of uropathogenic E. coli 1677 reliably infects the mouse prostate, produces a significant inflammatory response, and induces quantifiable epithelial proliferation and reactive hyperplasia.
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Affiliation(s)
- Bayli J. Boehm
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Sara A. Colopy
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Travis J. Jerde
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Christopher J. Loftus
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Wade Bushman
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
- Correspondence to: Dr. Wade Bushman, MD, PhD, Department of Urology, University of Wisconsin School of Medicine and Public Health, K6/562 Clinical Sciences Center, 600 Highland Avenue, Madison, WI 53792.
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Boĭko EV, Pozniak AL, Nuralova IV, Mal'tsev DS, Suetov AA, Ageev VS, Iakushev DI. [About development of chlamydia multiple organ lesions after primary ocular infection in experiment]. Arkh Patol 2011; 73:15-18. [PMID: 22379893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Chlamidia spp. are obligate intracellular pathogens that cause a variety of diseases in humans and animals. Their generalization was proved as hematogenic spreading from the urogenital (C. trachomatis) and the respiratory (C. pneumoniae) systems. The goal was to investigate the possibility of C. trachomatis infection spreading from the primary ocular gate. 6 animals were infected by instillation in the conjunctival sack, subconjunctival and intravitreal injections of C. thachomatis culture. C. trachomatis was detected by direct immunofluorescence method in the retina, retinal pigment epithelium, choroid, brain, the pancreas, the prostate gland and the urethra after primary ocular infection. The results of our study have proved the opportunity of C. trachomatis to cause polyorganic contamination.
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Cai T, Mazzoli S, Bartoletti R, Tiscione D, Malossini G. Re: May Chlamydia trachomatis be an aetiological agent of chronic prostatitis infection? Chronic prostatitis due to Chlamydia trachomatis infection: a challenge for the urologist. Andrologia 2011; 43:84. [PMID: 21219390 DOI: 10.1111/j.1439-0272.2010.01118.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Kim SH, Ha US, Lee HR, Sohn DW, Lee SJ, Kim HW, Han CH, Lee CB, Cho YH. Do Escherichia coli extract and cranberry exert preventive effects on chronic bacterial prostatitis? Pilot study using an animal model. J Infect Chemother 2010; 17:322-6. [PMID: 21042827 DOI: 10.1007/s10156-010-0170-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2010] [Accepted: 09/14/2010] [Indexed: 11/25/2022]
Abstract
Traditional first-line treatment of chronic bacterial prostatitis (CBP) is administration of empirical antibiotics. However, the efficacy rate is low and long-term antibiotic therapy can result in adverse events and bacterial resistance. For these reasons, a new treatment or preventive modality that can replace traditional antibiotic therapy is required. There are several reports that E. coli extract has a preventive effect on recurrent urinary tract infection (UTI). Cranberries are also known to have beneficial effects in preventing UTI. To evaluate the preventive effect of E. coli extract and cranberries on CBP, 48 rats were randomly divided into 4 groups; control, ciprofloxacin, E. coli extract, and cranberry groups. All drug treatments were conducted for 3 weeks, and then we developed a CBP rat model. After 4 weeks, the results of microbiological culture of prostate and urine samples as well as histological findings for the prostate were analyzed for each group. The infection rate in the ciprofloxacin group was significantly lower than that in the control group. The microbiological cultures of the prostate and urine samples demonstrated reduced bacterial growth in all experimental groups compared with the control group. Histopathologic examination showed significantly decreased prostatic inflammation in all groups compared with the control group. These results suggest that E. coli extract has a potential preventive effect on the development of CBP, and cranberry also exhibits promising activity in this context.
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Affiliation(s)
- Sang Hoon Kim
- Department of Urology, St Mary's Hospital, The Catholic University of Korea College of Medicine, 62 Youido-dong, Youngdungpoku, Seoul 150-713, Korea
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Kul'chavenia EV, Breusov AA, Brizhatiuk EV, Kholtobin DP. [Approaches to raising efficacy of treatment of patients with chronic prostatitis associated with intracellular infections]. Urologiia 2010:55-58. [PMID: 21427997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The efficacy of indigal plus containing indol-3-carbinol, epigallocatexin-3-gallat and Serenoa repens extract in combination with sparfloxacin was studied in a trial with participation of 30 patients with chronic infectious prostatitis associated with intracellular agents. Group 1 (n=15) received indigal plus (2 capsules twice a day for 3 months) and sparfloxacin (200 mg twice a day for 1 month). Group 2 including 15 matched controls received sparfloxacin alone according to the same schedule. The examination included questionnaire survey (IPSS, QoL, NIH-CPSI), blood count, urinalysis, PSA test, microscopy, bacteriological study of prostatic secretion, uroflowmetry, transrectal ultrasound investigation of the prostate with residual urine assay, laser doppleroflowmetry. The examinations were performed on the treatment day 30, 60 and 90. After the antibacterial treatment chlamidia, ureaplasma and E.coli were detected in 13.3, 6.7 and 26.7% patients of the control group, in 6.7, 6.7 and 6.7% patients of the study group, respectively. Thus, the addition of a pathogenetic drug indigal plus to sparfloxacin treatment promoted normalization of apoptosis of the infected cells, led to more effective bacterial eradication, enhanced regression of the symptoms. It is recommended to include indigal plus in a basic scheme of treatment of patients with chronic infectious prostatitis.
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Chesnokova MG, Novikov AI, Novikov IA, Kabanov VN, Solov'eva TD. [Characteristics of microbiological diagnosis of chronic bacterial prostatitis]. Urologiia 2010:47-50. [PMID: 21427995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We made a microbiological study of the urine and prostatic secretion (Meares-Stamey test) of 35 patients with chronic bacterial prostatitis (CBP) aged 35-75 years. We conducted a bacterial assay, determined species, sensitivity to synthetic antibacterial fluoroquinolone drugs. A total of 163 bacterial strains were isolated, of them 13 were staphylococcal. Gram-negative bacteria were identified in the test biomaterial only in 16.6% cases. The analysis of staphylococcal sensitivity showed the highest antistaphylococcal effectiveness of levofloxacin and lomefloxacin. Our study confirms an essential role of staphylococcal bacteria in CBP etiology.
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Quintar AA, Doll A, Leimgruber C, Palmeri CM, Roth FD, Maccioni M, Maldonado CA. Acute inflammation promotes early cellular stimulation of the epithelial and stromal compartments of the rat prostate. Prostate 2010; 70:1153-65. [PMID: 20564470 DOI: 10.1002/pros.21150] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND It has been proposed that prostatic inflammation plays a pivotal role in the pathophysiology of benign hyperplasia and prostate cancer. However, little information is available about the prostatic reaction to bacterial compounds in vivo. Our aim was therefore to evaluate the early effects of bacterial infection on rat ventral prostate compartments. METHODS Using a rat model of acute bacterial prostatitis by Escherichia coli, we analyzed the histological and ultrastructural changes in the prostate at 24, 48, and 72 hr postinfection. Prostatic tissues were immunostained for prostatic binding protein (PBP), ACTA2, ErbB1, and ErbB2 receptors, TUNEL, and markers of cell proliferation. Dot and Western blots for PBP, ACTA2, ErbB1, ErbB2, and TGFbeta1 were also performed. RESULTS The prostatic epithelium became hypertrophied, with increases in PBP and ErbB1 expression at 24 hr postinfection. Moreover, inflammation induced the expression of ErbB2, a receptor strongly involved in carcinogenesis. These alterations were more pronounced at 48 hr, but the epithelium also showed apoptosis and finally atrophy at 72 hr postinfection, with a decrease in PBP and ErbB receptors. Interestingly, the epithelial cells exhibited a high level of proliferation in response to the bacteria. The stromal reaction to acute inflammation was initially characterized by smooth muscle hypertrophy. Afterwards, muscle cells acquired a secretory phenotype, with a reduction in ACTA2 at 72 hr postinfection. CONCLUSIONS Prostatic inflammation, even at the early stages, promotes atrophic and proliferative changes, and the upregulation of ErbB receptors together with dedifferentiation of smooth muscle cells. These data suggest that repetitive reinfections could lead to uncontrolled growth in the prostate gland.
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Affiliation(s)
- Amado A Quintar
- Center of Electron Microscopy, School of Medical Sciences, National University of Cordoba, Córdoba, Argentina
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Xie H, Chen HD, Huang HC, Yang YR, Wu JB, He QX, Zhu QJ, Chen JO, Li CD, Xia P, Shen LJ. [Bacterial 16S rRNA genes and expression of IL-1β, TNF-α and IgA in prostate tissues]. Zhonghua Yi Xue Za Zhi 2010; 90:1970-1973. [PMID: 20979861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate the role of bacteria in the etiology of chronic prostatitis. METHODS Complete prostate specimens were obtained at autopsy from 192 organ donors (aged 20 - 38 years old) during 2002 to 2008 who died of non-prostatic diseases. One tissue taken from the peripheral prostatic zone according to McNeal was divided into two pieces. One piece of tissue was taken for routine pathological examinations and immunohistochemical studies of interleukin (IL)-1β, tumor necrosis factor-α (TNF-α) and IgA. Another one was taken for PCR assay to detect the bacterial 16S rRNA genes (16S rDNA). RESULTS Of 192 prostate specimens, 64 (33.3%) had pathological changes of chronic prostatitis and 38 (19.8%) specimens was positive for bacterial 16S rDNA. Positive rates of 16S rDNA in chronic prostatitis and non-prostatitis specimens were 50.0% (32/64) and 4.6% (6/128) respectively (χ(2) = 55.185, P < 0.001). Expressions of IL-1β, TNF-α and IgA in specimens of chronic prostatitis were significantly higher than those in non-prostatitis specimens (P < 0.001). A positive correlation could be found among three immunohistochemical indicators (P < 0.01). In 64 specimens with chronic prostatitis, a significant expression of IL-1β, TNF-α and IgA was more often demonstrated in 16S rDNA positive group than in 16S rDNA negative group (P < 0.001). CONCLUSIONS The up-regulations of bacterial 16S rDNA, cytokines and immunoglobulin A are involved in inflammatory response of chronic prostatitis. Bacterial infection may be an important cause of chronic prostatitis.
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Affiliation(s)
- Hui Xie
- Department of Urology, First Affiliated Hospital, Wenzhou Medical College, Wenzhou 325000, China.
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Sun YM, Li Y, Liu L, Zhu WQ, Jiang GH. [Effects of Prostate Water Pellets on the number of colonies, NO concentration and NOS activity in the prostate tissue of CBP rats]. Zhonghua Nan Ke Xue 2010; 16:373-376. [PMID: 20626170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE To investigate the effects of Prostate Water Pellets (PWP) on the number of colonies, NO concentration and NOS activity in the prostate tissues of rats with chronic bacterial prostatitis (CBP). METHODS A total of 120 healthy adult male Wistar rats weighing 250-300 g were equally randomized into 6 groups: blank control, model control, positive control, high-dose PWP, medium-dose PWP and low-dose PWP. The CBP rat models were established by injecting colibacilli (10(7)/ml) into the prostate. A month later, the high- , medium- and low-dose PWP groups were treated intragastrically with PWP at 4.4 g/kg, 2.2 g/kg and 1.1 g/kg per day respectively, the positive controls with levofloxacin at 0.018 g/kg per day, and the blank and model controls with normal saline, all for 35 days. Then the numbers of colonies in the prostate tissues were measured, and the changes in NO concentration and NOS activity detected by the nitrite reductase method. RESULTS Compared with the model controls, the number of colonies, NO concentration and NOS activity were significantly reduced in the prostate tissues of the rats of the high- , medium- and low-dose PWP groups (P < 0.01). CONCLUSION PWP was proved to be efficacious for CBP in rats, whose mechanism might be related with its inhibitory effect on bacterial growth and decreasing effect on NO concentration and NOS activity in the prostate tissues.
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Affiliation(s)
- Yi-Ming Sun
- Institute of Materia Medica, Harbin University of Commerce, Harbin, Heilongjiang 150036, China.
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Kamalov AA, Efremov EA, Dorofeev SD, Tret'iakov AA, Okhobotov DA, Mel'nik II, Bedretdinova DA. [Clinical immunological rationale of interferon therapy in chronic bacterial prostatitis]. Urologiia 2010:34-38. [PMID: 20886729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The study of changes in the immune status of patients with chronic bacterial prostatitis demonstrated changes in immunological parameters reflecting depression of the immune system (subnormal levels of interferon alpha, gamma, sIgA, functional activity of neutrophils, high concentration of IgA, IgG, IgM). Thus, combined treatment of chronic bacterial prostatitis must include administration of immunomodulators.
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Xie H, Huang HC, Yang YR, He QX, Zhu QJ, Chen JO. [Expressions of bacterial 16S rRNA, IL-1beta, TNF-alpha and NGF in prostate tissues]. Zhonghua Nan Ke Xue 2010; 16:40-43. [PMID: 20180403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To investigate the role of bacteria in the etiology of chronic prostatitis. METHODS A total of 162 complete prostate specimens were obtained at autopsy from organ donors (aged 20 -38 yr) who died of non-prostatic diseases. Each of the samples from the peripheral zone of the prostate was divided into two parts, one for routine pathological examination and immunohistochemical studies of interleukin (IL)-1beta, tumor necrosis factor-alpha (TNF-alpha) and the nerve growth factor (NGF), and the other for PCR assay to detect the bacterial 16S rRNA gene (16S rDNA). RESULTS Fifty-one (31.5%) of the total specimens presented pathological changes of chronic prostatitis, of which 44 had mild focal stromal, 5 mild focal stromal and periglandular and 2 mild focal periglandular inflammation. The positive rate of 16S rDNA was 19.1% (31/162), 51.0% (26/51) in the chronic prostatitis and 4.5% (5/111) in the non-prostatitis specimens (chi2 = 29.783, P < 0.01). In the specimens with chronic prostatitis, the expressions of IL-1beta, TNF-alpha and NGF were significantly higher in the 16S rDNA positive than in the 16S rDNA negative group (P < 0.01). CONCLUSION Bacterial inflammation may play an important role in the etiology of chronic prostatitis.
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Affiliation(s)
- Hui Xie
- Department of Urology, The First Hospital Affiliated to Wenzhou Medical College, Wenzhou, Zhejiang 325000, China.
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Namiki K, Goodison S, Porvasnik S, Allan RW, Iczkowski KA, Urbanek C, Reyes L, Sakamoto N, Rosser CJ. Persistent exposure to Mycoplasma induces malignant transformation of human prostate cells. PLoS One 2009; 4:e6872. [PMID: 19721714 PMCID: PMC2730529 DOI: 10.1371/journal.pone.0006872] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Accepted: 07/28/2009] [Indexed: 11/18/2022] Open
Abstract
Recent epidemiologic, genetic, and molecular studies suggest infection and inflammation initiate certain cancers, including those of the prostate. The American Cancer Society, estimates that approximately 20% of all worldwide cancers are caused by infection. Mycoplasma, a genus of bacteria that lack a cell wall, are among the few prokaryotes that can grow in close relationship with mammalian cells, often without any apparent pathology, for extended periods of time. In this study, the capacity of Mycoplasma genitalium, a prevalent sexually transmitted infection, and Mycoplasma hyorhinis, a mycoplasma found at unusually high frequency among patients with AIDS, to induce a malignant phenotype in benign human prostate cells (BPH-1) was evaluated using a series of in vitro and in vivo assays. After 19 weeks of culture, infected BPH-1 cells achieved anchorage-independent growth and increased migration and invasion. Malignant transformation of infected BPH-1 cells was confirmed by the formation of xenograft tumors in athymic mice. Associated with these changes was an increase in karyotypic entropy, evident by the accumulation of chromosomal aberrations and polysomy. This is the first report describing the capacity of M. genitalium or M. hyorhinis infection to lead to the malignant transformation of benign human epithelial cells and may serve as a model to further study the relationship between prostatitis and prostatic carcinogenesis.
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Affiliation(s)
- Kazunori Namiki
- Department of Urology, The University of Florida, Gainesville, Florida, United States of America
| | - Steve Goodison
- Department of Surgery, The University of Florida, Jacksonville, Florida, United States of America
| | - Stacy Porvasnik
- Department of Urology, The University of Florida, Gainesville, Florida, United States of America
| | - Robert W. Allan
- Department of Pathology, The University of Florida, Gainesville, Florida, United States of America
| | - Kenneth A. Iczkowski
- Department of Pathology, The University of Colorado, Aurora, Colorado, United States of America
| | - Cydney Urbanek
- Department of Urology, The University of Florida, Gainesville, Florida, United States of America
| | - Leticia Reyes
- Department of Veterinary Pathology, The University of Florida, Gainesville, Florida, United States of America
| | - Noboru Sakamoto
- Department of Urology, The University of Florida, Gainesville, Florida, United States of America
| | - Charles J. Rosser
- Department of Urology, The University of Florida, Gainesville, Florida, United States of America
- * E-mail:
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Lopatkin NA, Kamalov AA, Mazo EB, Kozdoba AS, Popov SV, Efremov EA, Dorofeev SD, Mel'nik II, Okhobotov DA. [Vitaprost plus in the treatment of chronic bacterial prostatitis]. Urologiia 2009:54-61. [PMID: 19670818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Our study has demonstrated that compound medicine vitaprost plus in therapy of chronic bacterial prostatitis (CBP) reduces intensity of prostatic inflammation, significantly relieves symptoms of chronic prostatitis and pain syndrome. The absence of unwanted side effects, significant changes in clinical and biochemical blood and urine parameters evidences for good tolerance and safety of the drug. Thus, rectal suppositories vitaprost plus can be recommended for treatment of chronic bacterial prostatitis caused by both gram-positive and gram-negative bacteria in patients of different age and clinical symptoms.
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Zhu QF, Xie H, Weng ZL, Yang YR, Chen BC. [Detection of bacterial signal of 16S rRNA gene in prostate tissues obtained by perineal approach from patient with chronic pelvic pain syndrome]. Zhonghua Yi Xue Za Zhi 2009; 89:823-825. [PMID: 19595122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To explore the role of bacteria in etiology of chronic pelvic pain syndrome (CPPS), i.e., chronic prostatitis and the correlation between presence of bacterial signal of 16S ribosomal RNA (16S rRNA) gene and the response to antibiotics. METHODS Samples of prostatic and subcutaneous tissues were obtained by biopsy via perineal approach from 112 CPPS patients, aged 20 - 48. Polymerase chain reaction was conducted to detect the 16S rRNA gene of bacteria. The patients were treated with gatifloxacin 0.4 g once a day for 4 weeks and then 4 weeks later the effects of treatment were assessed by the National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI). RESULTS PCR was completed in 94 of the 112 patients, and 18 were excluded because their subcutaneous biopsies were positive for 16S rRNA, showing the possible contamination of their prostatic tissues. The total positive rate of bacterial 16S rRNA gene was 63.8% (60/94). The positive rate of bacterial 16S rRNA gene in the patients with IIIa CPPS and IIIb CPPS were 68.3% and 60.3% respectively. The total gatifloxacin effective rate of positive bacterial signal group after the was 55.0%, significantly higher than that of the negative bacterial signal group (14.7%, P < 0.001). The gatifloxacin effective rate of the 16S rRNA positive IIIa CPPS patients was 75%, significantly higher than that of the 6S rRNA negative IIIa CPPS patients (23.1%, P < 0.001), and the gatifloxacin effective rate of the 16S rRNA positive IIIb CPPS patients was 37.5%, significantly higher than that of the 6S rRNA negative IIIb CPPS patients (9.5%, P < 0.05). CONCLUSION Bacterial infection is related to CPPS in part of the patients. Bacterial signal detection helps predict the effect of antimicrobial therapy.
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Affiliation(s)
- Qing-Feng Zhu
- Department of Urology, Lishui Central Hospital, Lishui323000, China
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Shannon BA, Cohen RJ, Garrett KL. Influence of 16S rDNA primer sequence mismatches on the spectrum of bacterial genera detected in prostate tissue by universal eubacterial PCR. Prostate 2008; 68:1487-91. [PMID: 18651564 DOI: 10.1002/pros.20822] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Propionibacterium sp. and Staphylococcus spp. are the most frequent bacteria cultured from prostatectomy specimens but are seldom detected by universal eubacterial PCR. MATERIALS AND METHODS We obtained from GenBank representative 16S rRNA gene sequences from Propionibacterium sp., Staphylococcus spp. and from 34 bacterial genera that were recently detected in prostate tissues using universal eubacterial PCR. We compared these 16S rDNA sequences with the universal eubacterial 16S PCR primer sets chosen for detection of bacterial DNA in prostate tissues. RESULTS We show that failure to detect DNA from Propionibacterium sp. and Staphylococcus spp. in prostate tissues is strongly associated with the presence of mismatches near the 3' termini of the 16S rDNA primer sets used. CONCLUSIONS The choice of 16S PCR primers may play an important role in determining the spectrum of bacterial genera detected in prostate tissue by universal eubacterial PCR.
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Abstract
BACKGROUND Multiple studies have now shown that Propionibacterium acnes can be cultured from post-prostatectomy derived prostate tissue samples. In contrast, both universal eubacterial 16S rDNA PCR and P. acnes-specific 16S rDNA PCR have failed to detect this organism at a frequency similar to that of bacterial culture. A potential explanation for this discrepancy, proposed by Cohen et al., involves mismatches in 16S rDNA primer sets used for bacterial detection. METHODS The sensitivity of both a previously published P. acnes-specific primer set containing a potential mismatch and a new primer set with no mismatches was determined. Both primer sets were used to interrogate two sets of DNA samples derived from post-prostatectomy prostate tissues that differed in the level of sterile precautions maintained during tissue collection. RESULTS The number of P. acnes positive samples was associated with the sterility of the sample collection process. In all instances, positive samples were determined to reflect low cell numbers (<10 CFU). CONCLUSIONS Although the results of previous studies have shown that P. acnes is not the only organism potentially present in the prostates of prostate cancer patients, mismatches in PCR primer sets may have also influenced the sensitivity of P. acnes detection. When using PCR in determining the presence of P. acnes in the human prostate, care should be taken to establish the potential influence of exogenous contamination and, due to the sensitivity of the assay, samples exposed to the urethra during the collection process (prostatic secretions, TURP specimens) should not be used.
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Affiliation(s)
- Karen S Sfanos
- Department of Urology, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
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