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Abstract
Interpretation of lung biopsy specimens is an integral part in the diagnosis of interstitial lung disease (ILD). The process of evaluating a surgical lung biopsy for disease involves answering several questions. Unlike much of surgical pathology of neoplastic lung disease, arriving at the correct diagnosis in nonneoplastic lung disease often requires correlation with clinical and radiologic findings. The topic of ILD or diffuse infiltrative lung disease covers several hundred entities. This article is meant to be a launching point in the clinician's approach to the histologic evaluation of lung disease.
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Affiliation(s)
- Kirk D Jones
- Department of Pathology, University of California San Francisco, San Francisco, CA 94143-0102, USA.
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Urisman A, Leard LE, Nathan M, Elicker BM, Hoopes C, Kukreja J, Jones KD. Rapidly progressive pulmonary venoocclusive disease in young women taking oral contraceptives. J Heart Lung Transplant 2013; 31:1031-6. [PMID: 22884388 DOI: 10.1016/j.healun.2012.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 03/03/2012] [Accepted: 05/15/2012] [Indexed: 10/28/2022] Open
Abstract
Pulmonary venoocclusive disease (PVOD) is a rare cause of pulmonary hypertension characterized by a progressive clinical course and poor outcomes if not treated by early lung transplantation. The pathogenesis of PVOD remains poorly understood. We report PVOD that developed in 2 young women soon after the initiation of oral contraceptives (OCs). The first patient is a 14-year-old girl, with no medical history, who started taking an OC 3 weeks before the onset of symptoms. The second patient is an 18-year-old girl, diagnosed 2 years previously with systemic lupus erythematosus and lupus anticoagulant, who started taking an OC 4 months before the onset of symptoms. Both patients required lung transplantation. Radiographic and histopathologic findings in both patients showed features of PVOD. Only 1 prior patient with PVOD and a handful of unclassified patients with pulmonary hypertension in association with OCs have been documented. The importance of PVOD as the basis of pulmonary hypertension in patients with connective tissue disease has been recently proposed, as well as the role of thrombogenesis, in the development of PVOD. The temporal sequence in these 2 patients suggests the thrombogenic action of OCs may contribute to the development of PVOD, with or without underlying connective tissue disease.
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Affiliation(s)
- Anatoly Urisman
- Department of Pathology, University of California San Francisco, San Francisco, CA 94143-0102, USA.
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53
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Greenland JR, Jones KD, Hays SR, Golden JA, Urisman A, Jewell NP, Caughey GH, Trivedi NN. Association of large-airway lymphocytic bronchitis with bronchiolitis obliterans syndrome. Am J Respir Crit Care Med 2012; 187:417-23. [PMID: 23239157 DOI: 10.1164/rccm.201206-1025oc] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Lung transplantation offers great promise for otherwise terminal lung diseases, but the development of bronchiolitis obliterans syndrome (BOS) continues to limit survival. Although acute rejection and lymphocytic bronchiolitis have been identified as risk factors for the development of BOS, it is unclear whether large-airway lymphocytic inflammation conveys the same risk. OBJECTIVES We evaluated lymphocytic bronchitis on endobronchial biopsies as a risk factor for BOS and mortality. METHODS Endobronchial biopsies were collected and graded during surveillance after lung transplantation. We assessed samples with negative cultures collected in the first 90 days from 298 subjects and compared large-airway lymphocytic bronchitis assessed by a 0-2 "E-score" and with standard A and BR pathology scores for acute rejection and small-airway lymphocytic bronchiolitis, respectively. MEASUREMENTS AND MAIN RESULTS We found surprisingly little association between large- and small-airway lymphocytic inflammation scores from a given bronchoscopy. Endobronchial lymphocytic bronchitis was more prevalent in subjects in BOS stage 0p and BOS stages 1-3 at the time of biopsy. Within 90 days after transplantation, increasing maximum E-score was associated with greater risk of BOS (adjusted hazard ratio, 1.76; 95% confidence interval, 1.11-2.78; P = 0.02) and in this analysis 90-day maximum E-scores were the only score type predictive of BOS (P < 0.01). CONCLUSIONS These results support a multicenter study to evaluate endoscopic biopsies for the identification of patients at increased risk for BOS. The association of endobronchial lymphocytic inflammation and BOS may have mechanistic implications.
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Affiliation(s)
- John R Greenland
- Department of Medicine, University of California at San Francisco, San Francisco, CA 94121, USA
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54
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Urisman A, Molinaro RJ, Fischer N, Plummer SJ, Casey G, Klein EA, Malathi K, Magi-Galluzzi C, Tubbs RR, Ganem D, Silverman RH, DeRisi JL. Retraction. Identification of a novel gammaretrovirus in prostate tumors of patients homozygous for R462Q RNASEL variant. PLoS Pathog 2012; 8. [PMID: 23028303 PMCID: PMC3445601 DOI: 10.1371/annotation/7e2efc01-2e9b-4e9b-aef0-87ab0e4e4732] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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55
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Lee D, Das Gupta J, Gaughan C, Steffen I, Tang N, Luk KC, Qiu X, Urisman A, Fischer N, Molinaro R, Broz M, Schochetman G, Klein EA, Ganem D, DeRisi JL, Simmons G, Hackett J, Silverman RH, Chiu CY. In-depth investigation of archival and prospectively collected samples reveals no evidence for XMRV infection in prostate cancer. PLoS One 2012; 7:e44954. [PMID: 23028701 PMCID: PMC3445615 DOI: 10.1371/journal.pone.0044954] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [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: 06/02/2012] [Accepted: 08/10/2012] [Indexed: 12/31/2022] Open
Abstract
XMRV, or xenotropic murine leukemia virus (MLV)-related virus, is a novel gammaretrovirus originally identified in studies that analyzed tissue from prostate cancer patients in 2006 and blood from patients with chronic fatigue syndrome (CFS) in 2009. However, a large number of subsequent studies failed to confirm a link between XMRV infection and CFS or prostate cancer. On the contrary, recent evidence indicates that XMRV is a contaminant originating from the recombination of two mouse endogenous retroviruses during passaging of a prostate tumor xenograft (CWR22) in mice, generating laboratory-derived cell lines that are XMRV-infected. To confirm or refute an association between XMRV and prostate cancer, we analyzed prostate cancer tissues and plasma from a prospectively collected cohort of 39 patients as well as archival RNA and prostate tissue from the original 2006 study. Despite comprehensive microarray, PCR, FISH, and serological testing, XMRV was not detected in any of the newly collected samples or in archival tissue, although archival RNA remained XMRV-positive. Notably, archival VP62 prostate tissue, from which the prototype XMRV strain was derived, tested negative for XMRV on re-analysis. Analysis of viral genomic and human mitochondrial sequences revealed that all previously characterized XMRV strains are identical and that the archival RNA had been contaminated by an XMRV-infected laboratory cell line. These findings reveal no association between XMRV and prostate cancer, and underscore the conclusion that XMRV is not a naturally acquired human infection.
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Affiliation(s)
- Deanna Lee
- Department of Laboratory Medicine, University of San Francisco, San Francisco, California, United States of America
- University of California San Francisco-Abbott Viral Diagnostics and Discovery Center, University of California San Francisco, San Francisco, California, United States of America
| | | | | | - Imke Steffen
- Blood Systems Research Institute, San Francisco, California, United States of America
| | - Ning Tang
- Abbott Laboratories, Abbott Park, Illinois, United States of America
| | - Ka-Cheung Luk
- Abbott Laboratories, Abbott Park, Illinois, United States of America
| | - Xiaoxing Qiu
- Abbott Laboratories, Abbott Park, Illinois, United States of America
| | - Anatoly Urisman
- Department of Laboratory Medicine, University of San Francisco, San Francisco, California, United States of America
| | - Nicole Fischer
- University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ross Molinaro
- Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Miranda Broz
- Department of Laboratory Medicine, University of San Francisco, San Francisco, California, United States of America
| | | | - Eric A. Klein
- Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Don Ganem
- Novartis Institutes for Biomedical Research, Emeryville, California, United States of America
| | - Joseph L. DeRisi
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, California United States of America
- Howard Hughes Medical Institute, Chevy Chase, Maryland, United States of America
| | - Graham Simmons
- Blood Systems Research Institute, San Francisco, California, United States of America
| | - John Hackett
- Abbott Laboratories, Abbott Park, Illinois, United States of America
| | | | - Charles Y. Chiu
- Department of Laboratory Medicine, University of San Francisco, San Francisco, California, United States of America
- University of California San Francisco-Abbott Viral Diagnostics and Discovery Center, University of California San Francisco, San Francisco, California, United States of America
- Department of Medicine, Division of Infectious Diseases, University of California San Francisco, San Francisco, California, United States of America
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Nijagal A, Jelin E, Feldstein VA, Courtier J, Urisman A, Jones KD, Lee H, Hirose S, MacKenzie TC. The diagnosis and management of intradiaphragmatic extralobar pulmonary sequestrations: a report of 4 cases. J Pediatr Surg 2012; 47:1501-5. [PMID: 22901907 DOI: 10.1016/j.jpedsurg.2011.11.066] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 11/22/2011] [Accepted: 11/23/2011] [Indexed: 10/28/2022]
Abstract
BACKGROUND/PURPOSE Intradiaphragmatic extralobar pulmonary sequestrations (IDEPSs) are a rare subset of bronchopulmonary sequestrations (BPS). We report the largest series of patients with IDEPS and describe the diagnostic and operative challenges associated with this condition. METHODS We retrospectively reviewed our experience with fetal and pediatric BPS from 1995 to 2010 to identify patients with IDEPS. RESULTS We identified 27 patients with BPS and 4 patients in whom the masses were within the diaphragm. In 1 patient, the prenatal ultrasound correctly identified the mass as being within the diaphragm itself, whereas the remaining cases were thought to be intraabdominal or had discordant preoperative imaging findings. The diagnosis of an IDEPS proved challenging to make prospectively using prenatal ultrasound, computed tomography, or magnetic resonance imaging. All patients underwent attempted resection. Two cases required a combined laparoscopic and thoracoscopic approach to accurately localize the mass. The postoperative recovery of these patients was uneventful. CONCLUSIONS We present the largest reported experience of IDEPS. Because preoperative imaging studies cannot always determine whether a sequestration is intraabdominal, intrathoracic, or intradiaphragmatic, operative planning may pose a challenge. However, the use of minimally invasive approaches can allow exploration of both the thoracic and abdominal cavities with low morbidity.
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Affiliation(s)
- Amar Nijagal
- Department of Surgery, University of California, San Francisco, CA 94143-0570, USA
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57
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Chiu CY, Urisman A, Greenhow TL, Rouskin S, Yagi S, Schnurr D, Wright C, Drew WL, Wang D, Weintrub PS, DeRisi JL, Ganem D. Utility of DNA microarrays for detection of viruses in acute respiratory tract infections in children. J Pediatr 2008; 153:76-83. [PMID: 18571541 PMCID: PMC3174048 DOI: 10.1016/j.jpeds.2007.12.035] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2007] [Revised: 11/09/2007] [Accepted: 12/18/2007] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To assess the utility of a panviral DNA microarray platform (Virochip) in the detection of viruses associated with pediatric respiratory tract infections (RTIs). STUDY DESIGN The Virochip was compared with conventional direct fluorescent antibody (DFA)- and polymerase chain reaction (PCR)-based testing for the detection of respiratory viruses in 278 consecutive nasopharyngeal aspirate samples from 222 children. RESULTS The Virochip was superior in performance to DFA, showing a 19% increase in the detection of 7 respiratory viruses included in standard DFA panels, and was similar to virus-specific PCR (sensitivity, 85% to 90%; specificity, >/=99%; positive predictive value, 94% to 96%; negative predictive value, 97% to 98%) in the detection of respiratory syncytial virus, influenza A, and rhinoviruses/enteroviruses. The Virochip also detected viruses not routinely tested for or missed by DFA and PCR, as well as double infections and infections in critically ill patients that DFA failed to detect. CONCLUSIONS Given its favorable sensitivity and specificity profile and expanded spectrum for detection, microarray-based viral testing holds promise for clinical diagnosis of pediatric RTIs.
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Key Words
- adv, adenovirus
- cov, coronavirus
- dfa, direct fluorescent antibody
- ev, enterovirus
- flua/b, influenza a/b
- hmpv, human metapneumovirus
- hpiv, human parainfluenza virus
- npa, nasopharyngeal aspirate
- pcr, polymerase chain reaction
- rsv, respiratory syncytial virus
- rt, reverse-transcriptase
- rti, respiratory tract infection
- rv, rhinovirus
- ucsf, university of california san francisco
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Affiliation(s)
- Charles Y. Chiu
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA,Department of Medicine, University of California San Francisco, San Francisco, CA,Division of Infectious Diseases, University of California San Francisco, San Francisco, CA
| | - Anatoly Urisman
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA,Department of Medicine, University of California San Francisco, San Francisco, CA
| | - Tara L. Greenhow
- Department of Pediatric Infectious Diseases, Children's Hospital and Research Center, Oakland, CA
| | - Silvi Rouskin
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA
| | - Shigeo Yagi
- Viral and Rickettsial Disease Laboratory, California Department of Health Services, Richmond, CA
| | - David Schnurr
- Viral and Rickettsial Disease Laboratory, California Department of Health Services, Richmond, CA
| | - Carolyn Wright
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA
| | - W. Lawrence Drew
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA,Department of Medicine, University of California San Francisco, San Francisco, CA,Division of Infectious Diseases, University of California San Francisco, San Francisco, CA
| | - David Wang
- Departments of Microbiology and Pathology and Immunology, Washington University, St. Louis, MO
| | - Peggy S. Weintrub
- Department of Pediatrics, University of California San Francisco, San Francisco, CA,Division of Infectious Diseases, University of California San Francisco, San Francisco, CA
| | - Joseph L. DeRisi
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA,Department of Medicine, University of California San Francisco, San Francisco, CA,Howard Hughes Medical Institute, University of California San Francisco, San Francisco, CA
| | - Don Ganem
- Department of Microbiology, University of California San Francisco, San Francisco, CA,Department of Medicine, University of California San Francisco, San Francisco, CA,Division of Infectious Diseases, University of California San Francisco, San Francisco, CA,Howard Hughes Medical Institute, University of California San Francisco, San Francisco, CA,Reprint requests: Dr Don Ganem, Medicine/Microbiology and Immunology, University of California San Francisco, 513 Parnassus Ave, Room HSW 1522, Box 0552, San Francisco, CA 94143
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58
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Chiu CY, Rouskin S, Koshy A, Urisman A, Fischer K, Yagi S, Schnurr D, Eckburg PB, Tompkins LS, Blackburn BG, Merker JD, Patterson BK, Ganem D, DeRisi JL. Microarray detection of human parainfluenzavirus 4 infection associated with respiratory failure in an immunocompetent adult. Clin Infect Dis 2006; 43:e71-6. [PMID: 16983602 PMCID: PMC7108001 DOI: 10.1086/507896] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [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: 04/21/2006] [Accepted: 06/08/2006] [Indexed: 11/24/2022] Open
Abstract
A pan-viral DNA microarray, the Virochip (University of California, San Francisco), was used to detect human parainfluenzavirus 4 (HPIV-4) infection in an immunocompetent adult presenting with a life-threatening acute respiratory illness. The virus was identified in an endotracheal aspirate specimen, and the microarray results were confirmed by specific polymerase chain reaction and serological analysis for HPIV-4. Conventional clinical laboratory testing using an extensive panel of microbiological tests failed to yield a diagnosis. This case suggests that the potential severity of disease caused by HPIV-4 in adults may be greater than previously appreciated and illustrates the clinical utility of a microarray for broad-based viral pathogen screening.
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Affiliation(s)
- Charles Y. Chiu
- Departments of Biochemistry and Biophysics, San Francisco
- Departments of Infectious Diseases, and University of California, San Francisco
| | - Silvi Rouskin
- Departments of Biochemistry and Biophysics, San Francisco
| | - Anita Koshy
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford School of Medicine, Palo Alto
| | | | - Kael Fischer
- Departments of Biochemistry and Biophysics, San Francisco
| | - Shigeo Yagi
- Viral and Rickettsial Disease Laboratory, California Department of Health Services, Richmond, California
| | - David Schnurr
- Viral and Rickettsial Disease Laboratory, California Department of Health Services, Richmond, California
| | - Paul B. Eckburg
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford School of Medicine, Palo Alto
| | - Lucy S. Tompkins
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford School of Medicine, Palo Alto
| | - Brian G. Blackburn
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford School of Medicine, Palo Alto
| | - Jason D. Merker
- Department of Pathology and Stanford School of Medicine, Palo Alto
| | - Bruce K. Patterson
- Department of Pathology and Stanford School of Medicine, Palo Alto
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford School of Medicine, Palo Alto
| | - Don Ganem
- Departments of Microbiology, San Francisco
- Departments of Infectious Diseases, and University of California, San Francisco
- Departments of Medicine and University of California, San Francisco
- Howard Hughes Medical Institute, University of California, San Francisco
| | - Joseph L. DeRisi
- Departments of Biochemistry and Biophysics, San Francisco
- Departments of Medicine and University of California, San Francisco
- Howard Hughes Medical Institute, University of California, San Francisco
- Reprints or correspondence: Dr. Joseph L. DeRisi, Dept. of Biochemistry and Biophysics, University of California, San Francisco at Mission Bay, Office BH403C, QB3 Bldg., 1700 4th St., San Francisco, CA 94158 ()
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Urisman A, Molinaro RJ, Fischer N, Plummer SJ, Casey G, Klein EA, Malathi K, Magi-Galluzzi C, Tubbs RR, Ganem D, Silverman RH, DeRisi JL. Identification of a novel Gammaretrovirus in prostate tumors of patients homozygous for R462Q RNASEL variant. PLoS Pathog 2006; 2:e25. [PMID: 16609730 PMCID: PMC1434790 DOI: 10.1371/journal.ppat.0020025] [Citation(s) in RCA: 472] [Impact Index Per Article: 26.2] [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: 11/29/2005] [Accepted: 02/23/2006] [Indexed: 11/26/2022] Open
Abstract
Ribonuclease L (RNase L) is an important effector of the innate antiviral response. Mutations or variants that impair function of RNase L, particularly R462Q, have been proposed as susceptibility factors for prostate cancer. Given the role of this gene in viral defense, we sought to explore the possibility that a viral infection might contribute to prostate cancer in individuals harboring the R462Q variant. A viral detection DNA microarray composed of oligonucleotides corresponding to the most conserved sequences of all known viruses identified the presence of gammaretroviral sequences in cDNA samples from seven of 11 R462Q-homozygous (QQ) cases, and in one of eight heterozygous (RQ) and homozygous wild-type (RR) cases. An expanded survey of 86 tumors by specific RT-PCR detected the virus in eight of 20 QQ cases (40%), compared with only one sample (1.5%) among 66 RQ and RR cases. The full-length viral genome was cloned and sequenced independently from three positive QQ cases. The virus, named XMRV, is closely related to xenotropic murine leukemia viruses (MuLVs), but its sequence is clearly distinct from all known members of this group. Comparison of gag and pol sequences from different tumor isolates suggested infection with the same virus in all cases, yet sequence variation was consistent with the infections being independently acquired. Analysis of prostate tissues from XMRV-positive cases by in situ hybridization and immunohistochemistry showed that XMRV nucleic acid and protein can be detected in about 1% of stromal cells, predominantly fibroblasts and hematopoietic elements in regions adjacent to the carcinoma. These data provide to our knowledge the first demonstration that xenotropic MuLV-related viruses can produce an authentic human infection, and strongly implicate RNase L activity in the prevention or clearance of infection in vivo. These findings also raise questions about the possible relationship between exogenous infection and cancer development in genetically susceptible individuals. Prostate cancer is the most frequent cancer and the second leading cause of cancer deaths in US men over the age of 50. Several genetic factors have been proposed as potential risk factors for the development of prostate cancer, including a viral defense gene called RNASEL. A common genetic variant in this gene, R462Q, was recently implicated in up to 13% of prostate cancer cases. Given the antiviral role of RNASEL, the authors sought to examine if a virus might be present in prostate cancers associated with the R462Q variant. Using a DNA microarray designed to detect all known viral families, the authors identified a novel virus, named XMRV, in a subset of prostate tumor samples. Polymerase chain reaction testing of 86 prostate tumors for the presence of XMRV revealed a strong association between the presence of the virus and being homozygous for the R462Q variant. Cloning and sequencing of the virus showed that XMRV is a close relative of several known xenotropic murine leukemia viruses. This report presents the first documented cases of human infection with a xenotropic retrovirus. Future work will address the potential connection between XMRV infection and the increased prostate cancer risk in patients with the R462Q RNASEL variant.
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Affiliation(s)
- Anatoly Urisman
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, California, United States of America
| | - Ross J Molinaro
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
- Department of Chemistry, Cleveland State University, Cleveland, Ohio, United States of America
| | - Nicole Fischer
- Department of Microbiology and Immunology, University of California San Francisco, San Francisco, California, United States of America
| | - Sarah J Plummer
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Graham Casey
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Eric A Klein
- Glickman Urological Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Krishnamurthy Malathi
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Cristina Magi-Galluzzi
- Anatomic and Clinical Pathology, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Raymond R Tubbs
- Anatomic and Clinical Pathology, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Don Ganem
- Department of Microbiology and Immunology, University of California San Francisco, San Francisco, California, United States of America
- Department of Medicine, University of California San Francisco, San Francisco, California, United States of America
- Howard Hughes Medical Institute, University of California San Francisco, San Francisco, California, United States of America
| | - Robert H Silverman
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
- * To whom correspondence should be addressed. E-mail: (JLD); (RHS)
| | - Joseph L DeRisi
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, California, United States of America
- Howard Hughes Medical Institute, University of California San Francisco, San Francisco, California, United States of America
- * To whom correspondence should be addressed. E-mail: (JLD); (RHS)
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60
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Urisman A, Fischer KF, Chiu CY, Kistler AL, Beck S, Wang D, DeRisi JL. E-Predict: a computational strategy for species identification based on observed DNA microarray hybridization patterns. Genome Biol 2005; 6:R78. [PMID: 16168085 PMCID: PMC1242213 DOI: 10.1186/gb-2005-6-9-r78] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [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: 04/26/2005] [Revised: 06/23/2005] [Accepted: 07/26/2005] [Indexed: 11/10/2022] Open
Abstract
DNA microarrays may be used to identify microbial species present in environmental and clinical samples. However, automated tools for reliable species identification based on observed microarray hybridization patterns are lacking. We present an algorithm, E-Predict, for microarray-based species identification. E-Predict compares observed hybridization patterns with theoretical energy profiles representing different species. We demonstrate the application of the algorithm to viral detection in a set of clinical samples and discuss its relevance to other metagenomic applications.
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Affiliation(s)
- Anatoly Urisman
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA 94143, USA
- Biomedical Sciences Graduate Program, University of California San Francisco, San Francisco, CA 94143, USA
| | - Kael F Fischer
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA 94143, USA
| | - Charles Y Chiu
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA 94143, USA
- Department of Infectious Diseases, University of California San Francisco, San Francisco, CA 94143, USA
| | - Amy L Kistler
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA 94143, USA
| | - Shoshannah Beck
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA 94143, USA
| | - David Wang
- Departments of Molecular Microbiology and Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Joseph L DeRisi
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA 94143, USA
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61
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Wang D, Urisman A, Liu YT, Springer M, Ksiazek TG, Erdman DD, Mardis ER, Hickenbotham M, Magrini V, Eldred J, Latreille JP, Wilson RK, Ganem D, DeRisi JL. Viral discovery and sequence recovery using DNA microarrays. PLoS Biol 2003; 1:E2. [PMID: 14624234 PMCID: PMC261870 DOI: 10.1371/journal.pbio.0000002] [Citation(s) in RCA: 350] [Impact Index Per Article: 16.7] [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: 05/19/2003] [Accepted: 07/16/2003] [Indexed: 11/19/2022] Open
Abstract
Because of the constant threat posed by emerging infectious diseases and the limitations of existing approaches used to identify new pathogens, there is a great demand for new technological methods for viral discovery. We describe herein a DNA microarray-based platform for novel virus identification and characterization. Central to this approach was a DNA microarray designed to detect a wide range of known viruses as well as novel members of existing viral families; this microarray contained the most highly conserved 70mer sequences from every fully sequenced reference viral genome in GenBank. During an outbreak of severe acute respiratory syndrome (SARS) in March 2003, hybridization to this microarray revealed the presence of a previously uncharacterized coronavirus in a viral isolate cultivated from a SARS patient. To further characterize this new virus, approximately 1 kb of the unknown virus genome was cloned by physically recovering viral sequences hybridized to individual array elements. Sequencing of these fragments confirmed that the virus was indeed a new member of the coronavirus family. This combination of array hybridization followed by direct viral sequence recovery should prove to be a general strategy for the rapid identification and characterization of novel viruses and emerging infectious disease.
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Affiliation(s)
- David Wang
- Department of Biochemistry and Biophysics, University of California San Francisco, USA
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