Engels EA, Cho ER, Jee SHHepatitis B virus infection and risk of non-Hodgkin lymphoma in South Korea: a cohort study. Lancet Oncol 11: 827-834

Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
The Lancet Oncology (Impact Factor: 24.69). 09/2010; 11(9):827-34. DOI: 10.1016/S1470-2045(10)70167-4
Source: PubMed


Hepatitis B virus (HBV) infection is common throughout Asia and Africa. Whether chronic HBV infection increases risk of non-Hodgkin lymphoma (NHL) is unclear. We aimed to assess the association between chronic HBV infection and subsequent development of NHL in a South Korean cohort.
The Korean Cancer Prevention Study is a cohort study of South Korean workers and their dependants enrolled during 1992-95. From this cohort, we excluded individuals who died before Jan 1, 1993, who had cancer at or before the initial visit, who had missing information about weight, height, alanine aminotransferase or aspartate aminotransferase concentrations, or alcohol use, or who had evidence of HIV or HCV infection. Of 1,284,586 eligible participants, 603,585 had baseline data for serum hepatitis B surface antigen (HBsAg) status and were included in our study. We regarded HBsAg positivity at baseline as evidence of chronic HBV infection. Participants were followed up from baseline until Dec 31, 2006. We used national databases of inpatient and outpatient diagnoses and mortality records to ascertain occurrence of haematological malignancies. We assessed incidence of NHL overall and of NHL subtypes, malignant immunoproliferation, Hodgkin's lymphoma, multiple myeloma, and various leukaemias. We used Cox regression to evaluate associations with HBsAg status, adjusting for sex, age, and enrolment year.
53,045 (9%) of 603,585 participants tested positive for HBsAg at baseline. Subsequently, 133 HBsAg-positive and 905 HBsAg-negative individuals developed NHL. HBsAg-positive participants had an increased risk of NHL overall compared with those who were HBsAg-negative (incidence 19.4 vs 12.3 per 100,000 person-years; hazard ratio [HR] 1.74, 95% CI 1.45-2.09, adjusted for sex, age at baseline, and enrolment year). Among NHL subtypes, HBsAg positivity was associated with increased risk of diffuse large B-cell lymphoma (n=325, incidence 6.86 vs 3.79 per 100,000 person-years; adjusted HR 2.01, 1.48-2.75) and other or unknown subtypes (n=591, incidence 10.5 vs 7.07 per 100,000 person-years; adjusted HR 1.65, 1.29-2.11), compared with HBsAg negativity. Increased risk was also recorded for malignant immunoproliferation (n=14, incidence 0.44 vs 0.15 per 100,000 person-years; adjusted HR 3.79, 1.05-13.7). Risk of these malignancies was consistently raised in HBsAg-positive participants throughout 14 years of follow-up. HBsAg positivity was not associated with follicular or T-cell NHL, Hodgkin's lymphoma, multiple myeloma, or various leukaemias.
During extended follow-up, HBsAg-positive individuals had an increased risk of NHL, suggesting that chronic HBV infection promotes lymphomagenesis.
Korean Seoul City Research and the National Research and Development Program for Cancer Control, Ministry for Health, Welfare and Family Affairs, Republic of Korea; US National Cancer Institute.

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    • "This could possibly be impacted by variations in the inclusion of different subtypes of NHL. A Korean study concurs with our results, finding no association between chronic HBV and HL [10]. HCV is able to replicate within B cells and trigger malignant transformation, however the carcinogenic mechanism is not completely understood [34]. "
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    ABSTRACT: Several studies have assessed the association between hepatitis B virus (HBV) and hepatitis C virus (HCV) and non-Hodgkin's lymphoma. However, few studies are cohort by design, conducted within the Asian context and even fewer studies consider other lymphoid malignancies. The aim of this study was to assess the association between HBV and HCV and the risk of lymphoid malignancies among Japanese adults. The Japan Public Health Center prospective-based Study Cohort II was initiated in 1993/1994. 20,360 subjects with available data on HBV and HCV infection status from blood samples were followed up until the end of 2010 for an average of 16 years. During 324,139 person-years, 120 newly diagnosed cases of lymphoid malignancies were identified. Cox proportional hazards models were employed to calculate hazard ratios (HRs) and 95% confidence intervals (95%CIs). Of 20,360 subjects, 508 were HBsAg positive, 11,035 were anti-HBc positive, and 1,129 subjects were anti-HCV positive at baseline. The presence of HBsAg was positively associated with malignant lymphoma, especially with non-Hodgkin's lymphoma (HR=3.56, 95%CI=1.37-9.18) and diffuse large B-cell lymphoma (HR=7.22, 95%CI=2.34-22.29). In contrast, no clear association was observed between the presence of anti-HBc and anti-HCV. In conclusion, HBsAg but not anti-HBc or anti-HCV was positively associated with malignant lymphoma, particularly non-Hodgkin's lymphoma and diffuse large B-cell lymphoma in Japanese adults. Copyright © 2015 Elsevier Ltd. All rights reserved.
    07/2015; 39(4). DOI:10.1016/j.canep.2015.06.002
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    • "Hepatitis B is endemic in Hong Kong. Since previous studies showed a higher association between HBV and B-cell non-Hodgkin's lymphoma, we would also like to test for any association between HBV and Hodgkin's lymphoma [11–13]. "
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    ABSTRACT: Introduction Little information is available on the outcomes of Hodgkin's lymphoma in Chinese patients. We analyzed the clinical and histopathological characteristics, treatment types, clinical course and treatment outcomes of Hong Kong Chinese patients. Material and methods Patients with Hodgkin's lymphoma diagnosed from January 1991 to December 2010 were recruited. A retrospective analysis of these patients was performed. Results Sixty-seven Chinese patients (38 males and 29 females) were identified and the median age was 36 (range 16–80). Nodular sclerosis was the most common histology (54%), followed by mixed cellularity (36%). Twenty-four patients had early favorable, 20 patients had early unfavorable and 23 patients had advanced-stage diseases. The most common presentation was palpable lymph node or mass (85%) followed by fever, weight loss, night sweating and mediastinal mass. Ninety percent of patients received chemotherapy and 40% received radiotherapy as consolidation. Seven patients with stage I lymphoma received radiotherapy alone. ABVD (doxorubicin, bleomycin, vinblastine and dacarbazine) was the most commonly used chemotherapeutic regimen. Following treatment, 87% of patients achieved complete remission. Six patients relapsed after first remission and 3 achieved second remission after re-induction therapy. The 5-year overall survival of the entire cohort was 89% and the freedom from treatment failure (FFTF) at 5 years was 82%. The 5-year overall survival rate for early favorable, early unfavorable and advanced stages was 95.7%, 95.0% and 74.7%, respectively. Conclusions Despite the relatively low incidence of Hodgkin's lymphoma in Hong Kong Chinese, the treatment outcomes are comparable to Caucasian patients.
    Archives of Medical Science 06/2014; 10(3):498-504. DOI:10.5114/aoms.2014.43744 · 2.03 Impact Factor
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    • "The relationship between HBV infection and various NHL subtypes has not established. In a large cohort study of 53,045 patients with HBV infection [11], HBsAg-positive patients had an increased risk of DLBL, while associations with follicular and T-cell NHL were not significant. In this case, although the patient developed HCC due to liver cirrhosis, the relationship between FL and liver cirrhosis is unclear. "
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    ABSTRACT: Primary breast lymphoma (PBL) is a rare disease, particularly in males. Diffuse large B cell lymphoma is the most common PBL, while follicular lymphoma is less common. Furthermore, primary follicular lymphoma of a male breast is rarely reported. We report a male patient with primary follicular lymphoma of the breast and hepatocellular carcinoma (HCC). A 46-year-old man was diagnosed with liver cirrhosis secondary to chronic hepatitis B infection. Ten years later, he underwent segmentectomy of the liver due to HCC. Another 5 months later, he presented with a painless mass in the right chest wall. The mass was diagnosed as follicular lymphoma of the breast. The stage was IEA and he did not receive adjuvant therapy. Although only a few cases have been reported, lymphoma should be considered as a possible cause of breast mass, even in male patients.
    Cancer Research and Treatment 01/2014; 46(1):104-7. DOI:10.4143/crt.2014.46.1.104 · 3.32 Impact Factor
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