Hepatitis C infection and lymphoproliferative disease:Accidental comorbidities?

Chronic hepatitis C virus(HCV)infection has been associated with liver cancer and cirrhosis,autoimmune disorders such as thyroiditis and mixed cryoglobulinema,and alterations in immune function and chronic inflammation,both implicated in B cell lymphoproliferative diseases that may progress to non-H...

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Bibliographic Details
Published in:World journal of gastroenterology : WJG 2014-11, Vol.20 (43), p.16197-16202
Main Authors: Khoury, Tawfik, Chen, Shmuel, Adar, Tomer, Jacob, E Ollech, Mizrahi, Meir
Format: Article
Language:English
Subjects:
Animals
Blood
Comorbidity
Hepacivirus - immunology
Hepacivirus - pathogenicity
Hepatitis
Hepatitis C, Chronic - diagnosis
Hepatitis C, Chronic - epidemiology
Hepatitis C, Chronic - immunology
Hepatitis C, Chronic - virology
Host-Pathogen Interactions
Humans
infection
Lymphangiogenesis
lymphoma
Lymphoma, Non-Hodgkin - diagnosis
Lymphoma, Non-Hodgkin - epidemiology
Lymphoma, Non-Hodgkin - immunology
Lymphoma, Non-Hodgkin - virology
Minireviews
Non-Hodgkin’s
Prevalence
Risk Factors
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Summary:Chronic hepatitis C virus(HCV)infection has been associated with liver cancer and cirrhosis,autoimmune disorders such as thyroiditis and mixed cryoglobulinema,and alterations in immune function and chronic inflammation,both implicated in B cell lymphoproliferative diseases that may progress to non-Hodgkin lymphoma(NHL).HCV bound to B cell surface receptors can induce lymphoproliferation,leading to DNA mutations and/or lower antigen response thresholds.These findings and epidemiological reports suggest an association between HCV infection and NHL.We performed a systematic review of the literature to clarify this potential relationship.We searched the English-language literature utilizing Medline,Embase,Paper First,Web ofScience,Google Scholar,and the Cochrane Database of Systematic Reviews,with search terms broadly defined to capture discussions of HCV and its relationship with NHL and/or lymphoproliferative diseases.References were screened to further identify relevant studies and literature in the basic sciences.A total of 62 reports discussing the relationship between HCV,NHL,and lymphoproliferative diseases were identified.Epidemiological studies suggest that at least a portion of NHL may be etiologically attributable to HCV,particularly in areas with high HCV prevalence.Studies that showed a lack of association between HCV infection and lymphoma may have been influenced by small sample size,short follow-up periods,and database limitations.The association appears strongest with the B-cell lymphomas relative to other lymphoproliferative diseases.Mechanisms by which chronic HCV infection promotes lymphoproliferative disease remains unclear.Lymphomagenesis is a multifactorial process involving genetic,environmental,and infectious factors.HCV most probably have a role in the lymphomagenesis but further study to clarify the association and underlying mechanisms is warranted.
ISSN:1007-9327
2219-2840
DOI:10.3748/wjg.v20.i43.16197