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Armandi A, Caviglia GP, Saracco GM, DE MARCO L, FAGOONEE S, PELLICANO R. Seronegative occult hepatitis C virus infection: what is its clinical relevance? MINERVA BIOTECNOL 2021. [DOI: 10.23736/s1120-4826.20.02637-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Altekruse SF, Rosenfeld GE, Carrick DM, Pressman EJ, Schully SD, Mechanic LE, Cronin KA, Hernandez BY, Lynch CF, Cozen W, Khoury MJ, Penberthy LT. SEER cancer registry biospecimen research: yesterday and tomorrow. Cancer Epidemiol Biomarkers Prev 2015; 23:2681-7. [PMID: 25472677 DOI: 10.1158/1055-9965.epi-14-0490] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The National Cancer Institute's (NCI) Surveillance, Epidemiology, and End Results (SEER) registries have been a source of biospecimens for cancer research for decades. Recently, registry-based biospecimen studies have become more practical, with the expansion of electronic networks for pathology and medical record reporting. Formalin-fixed paraffin-embedded specimens are now used for next-generation sequencing and other molecular techniques. These developments create new opportunities for SEER biospecimen research. We evaluated 31 research articles published during 2005 to 2013 based on authors' confirmation that these studies involved linkage of SEER data to biospecimens. Rather than providing an exhaustive review of all possible articles, our intent was to indicate the breadth of research made possible by such a resource. We also summarize responses to a 2012 questionnaire that was broadly distributed to the NCI intra- and extramural biospecimen research community. This included responses from 30 investigators who had used SEER biospecimens in their research. The survey was not intended to be a systematic sample, but instead to provide anecdotal insight on strengths, limitations, and the future of SEER biospecimen research. Identified strengths of this research resource include biospecimen availability, cost, and annotation of data, including demographic information, stage, and survival. Shortcomings include limited annotation of clinical attributes such as detailed chemotherapy history and recurrence, and timeliness of turnaround following biospecimen requests. A review of selected SEER biospecimen articles, investigator feedback, and technological advances reinforced our view that SEER biospecimen resources should be developed. This would advance cancer biology, etiology, and personalized therapy research. See all the articles in this CEBP Focus section, "Biomarkers, Biospecimens, and New Technologies in Molecular Epidemiology." Cancer Epidemiol Biomarkers Prev; 23(12); 2681-7. ©2014 AACR.
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Affiliation(s)
- Sean F Altekruse
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland.
| | - Gabriel E Rosenfeld
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland
| | - Danielle M Carrick
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland
| | - Emilee J Pressman
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland
| | - Sheri D Schully
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland
| | - Leah E Mechanic
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland
| | - Kathleen A Cronin
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland
| | | | - Charles F Lynch
- Department of Epidemiology, College of Public Health, The University of Iowa, Iowa City, Iowa
| | - Wendy Cozen
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California (USC), USC Norris Comprehensive Cancer Center, Los Angeles, California. Department of Pathology, Keck School of Medicine of the University of Southern California (USC), USC Norris Comprehensive Cancer Center, Los Angeles, California
| | - Muin J Khoury
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland. Office of Public Health Genomics, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Lynne T Penberthy
- Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Rockville, Maryland
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Seronegative occult hepatitis C virus infection: clinical implications. J Clin Virol 2014; 61:315-20. [PMID: 25304062 DOI: 10.1016/j.jcv.2014.09.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 08/29/2014] [Accepted: 09/20/2014] [Indexed: 02/06/2023]
Abstract
Occult hepatitis C virus infection (OCI) was first described in anti-HCV and serum HCV-RNA negative patients with abnormal values of liver enzymes but who presented HCV-RNA in liver and in peripheral blood mononuclear cells. Up to now, two types of OCI are recognized: seronegative OCI (anti-HCV and serum HCV-RNA negative) and seropositive OCI (anti-HCV positive and serum HCV-RNA negative). The concept of OCI is still a matter of debate, probably because both types of OCI are not considered as different entities. This review focuses on seronegative OCI. The existence of seronegative OCI has been documented all around the world with the implication of different HCV genotypes (1-4). Seronegative OCI is associated with cryptogenic chronic hepatitis and liver cirrhosis and it may be involved in the appearance of hepatocellular carcinoma. Also seronegative OCI may increase the histological liver damage in chronic hepatitis B and in HIV-infected patients. It may have a negative influence in the natural history of hemodialysis patients and in immune-mediated glomerulonephritis. Seronegative OCI has been detected also in patients with haematological diseases, among healthy subjects and in drug users. Other publications indicate the potential infectivity of seronegative OCI in the setting of family members, sexual partners and liver transplantation. In summary, seronegative OCI may play a role in liver diseases and other human pathologies and may be present in healthy people but larger studies are needed to confirm these findings.
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Castillo I, Martinez-Ara J, Olea T, Bartolomé J, Madero R, Hernández E, Bernis C, Aguilar A, Quiroga JA, Carreño V, Selgas R. High prevalence of occult hepatitis C virus infection in patients with primary and secondary glomerular nephropathies. Kidney Int 2014; 86:619-24. [PMID: 24646855 DOI: 10.1038/ki.2014.68] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 01/17/2014] [Accepted: 01/23/2014] [Indexed: 12/16/2022]
Abstract
The association of hepatitis C virus (HCV) infection and glomerulonephritis is well known. However, the relationship between immune-mediated glomerulonephritis and occult HCV, characterized by the presence of HCV-RNA in liver or in peripheral blood mononuclear cells in the absence of serological markers, is unknown. We tested this in 113 anti-HCV-negative patients; 87 with immune-mediated glomerulonephritis and 26 controls with hereditary glomerular nephropathies. All patients were serum HCV-RNA negative by conventional real-time PCR. Significantly, occult HCV-RNA (detectable viral RNA in peripheral blood mononuclear cells or in serum after ultracentrifugation) was found in 34 of 87 patients with immune-mediated glomerulonephritis versus 1 of 26 control patients. The serum creatinine levels were significantly higher in patients with immune-mediated glomerulonephritis with than in those without occult HCV (1.5 versus 1.1 mg/dl, respectively). A multivariate analysis adjusted for gender showed a significantly increased risk of occult HCV in patients with immune-mediated glomerulonephritis versus the controls (odds ratio of 13.29). Progression to end-stage renal disease tended to be faster in patients with immune-mediated glomerulonephritis and occult HCV than in the negative cases. Thus, occult HCV is strongly associated with immune-mediated glomerulonephritis and may have a role in the progression of the disease.
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Affiliation(s)
| | - Jorge Martinez-Ara
- Department of Nephrology, Hospital Universitario La Paz, IdiPAZ, Madrid, Spain
| | - Teresa Olea
- Department of Nephrology, Hospital Universitario La Paz, IdiPAZ, Madrid, Spain
| | - Javier Bartolomé
- Fundación para el Estudio de las Hepatitis Virales, Madrid, Spain
| | - Rosario Madero
- Department of Biostatistics, Hospital Universitario La Paz, IdiPAZ, Madrid, Spain
| | - Eduardo Hernández
- 1] Department of Nephrology, Hospital Universitario 12 de Octubre, Madrid, Spain [2] REDinREN, Madrid, Spain
| | - Carmen Bernis
- Department of Nephrology, Hospital Universitario La Princesa, Madrid, Spain
| | - Ana Aguilar
- Department of Nephrology, Hospital Universitario La Paz, IdiPAZ, Madrid, Spain
| | - Juan A Quiroga
- Fundación para el Estudio de las Hepatitis Virales, Madrid, Spain
| | - Vicente Carreño
- Fundación para el Estudio de las Hepatitis Virales, Madrid, Spain
| | - Rafael Selgas
- 1] Department of Nephrology, Hospital Universitario La Paz, IdiPAZ, Madrid, Spain [2] REDinREN, Madrid, Spain
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