1
|
Htun MW, Shibata Y, Soe K, Koji T. Nuclear Expression of Pygo2 Correlates with Poorly Differentiated State Involving c-Myc, PCNA and Bcl9 in Myanmar Hepatocellular Carcinoma. Acta Histochem Cytochem 2021; 54:195-206. [PMID: 35023882 PMCID: PMC8727843 DOI: 10.1267/ahc.21-00090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/03/2021] [Indexed: 01/10/2023] Open
Abstract
In Myanmar, hepatocellular carcinoma (HCC) is commonly seen in young adult and associated with poor prognosis, while the molecular mechanisms that characterize HCC in Myanmar are unknown. As co-activation of Wnt/β-catenin signaling and c-Myc (Myc) are reported to associate with malignancy of HCC, we immunohistochemically investigated the expression of Pygo2 and Bcl9, the co-activators of the Wnt/β-catenin signaling, Myc and PCNA in 60 cases of Myanmar HCC. Pygo2 expression was confirmed by in situ hybridization. The signal intensity was measured by image analyzer and then statistically analyzed. As a result, the expression of Pygo2 was significantly higher in HCC compared to normal liver tissue and the nuclear signal was the most intense in poorly differentiated HCC. Cytoplasmic Bcl9 was expressed in the normal liver tissue but decreased in HCC with the progression of histopathological grade. Myc was significantly higher in poorly differentiated HCC, whereas PCNA labeling index increased with the progression of histopathological grade. Nuclear Pygo2 showed strong correlation with nuclear Myc (P < 0.01) and PCNA (P < 0.001), and inversely correlated with cytoplasmic Bcl9 (P < 0.01). Our results suggested Wnt/β-catenin and Myc signaling is commonly activated in Myanmar HCC and that the correlative upregulation of nuclear Pygo2 and Myc characterizes the malignant features of HCC in Myanmar.
Collapse
Affiliation(s)
- Myo Win Htun
- Department of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences
| | - Yasuaki Shibata
- Department of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences
| | | | - Takehiko Koji
- Office for Research Initiative and Development, Nagasaki University
| |
Collapse
|
2
|
Soe MT, Shibata Y, Win Htun M, Abe K, Soe K, Win Than N, Lwin T, Phone Kyaw M, Koji T. Immunohistochemical Mapping of Bcl9 Using Two Antibodies that Recognize Different Epitopes Is Useful to Characterize Juvenile Development of Hepatocellular Carcinoma in Myanmar. Acta Histochem Cytochem 2019; 52:9-17. [PMID: 30923411 PMCID: PMC6434316 DOI: 10.1267/ahc.18045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 12/13/2018] [Indexed: 01/10/2023] Open
Abstract
B-cell lymphoma 9 (Bcl9) is the core component of Wnt/β-catenin signaling and overexpressed in nuclei of various tumors, including hepatocellular carcinoma (HCC). However, the extent of Bcl9 expression relative to HCC differentiation stage and its functional aspects are poorly understood. In this study, we examined the expression pattern of Bcl9 immunohistochemically, using two anti-Bcl9 antibodies; one was a conventional polyclonal-antibody (anti-Bcl9ABC) against amino acid no.800-900 of human-Bcl9, while the other (anti-Bcl9BIO) was against amino acid no.50-200, covering Pygopus-binding sites of Bcl9. Immunohistochemistry using anti-Bcl9BIO demonstrated distinctive staining in the cytoplasm, while the anti-Bcl9ABC signal was detected in both cytoplasm and nuclei of HCC cells, reflecting different states of Bcl9 function because Pygopus-binding to Bcl9 is essential to exert its function together with β-catenin in nucleus. Quantitative analysis revealed a significantly higher immunohistochemical-score by anti-Bcl9BIO in normal liver comparing various differentiation grades of HCC (P < 0.004), whereas no significant difference was noted with anti-Bcl9ABC. Interestingly, immunohistochemical-score of anti-Bcl9BIO in patients aged < 40 years was significantly lower than that of ≥ 40 years group (P < 0.01). The results indicated that anti-Bcl9BIO detected cytoplasmic Bcl9, which does not bind to Pygopus suggesting it could be a useful indicator for development of HCC in young Myanmar patients.
Collapse
Affiliation(s)
- Myat Thu Soe
- Department of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences
| | - Yasuaki Shibata
- Department of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences
| | - Myo Win Htun
- Department of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences
| | - Kuniko Abe
- Department of Pathology, Japanese Red Cross Nagasaki Atomic Bomb Hospital
| | | | - Nay Win Than
- Department of Hepatobiliary and Pancreatic Surgery, Yangon Specialty Hospital
| | - Thann Lwin
- Department of Hepatobiliary and Pancreatic Surgery, Yangon Specialty Hospital
| | | | - Takehiko Koji
- Department of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences
| |
Collapse
|
3
|
Shyu HJ, Lung CC, Ho CC, Sun YHI, Ko PC, Huang JY, Pan CC, Chiang YC, Chen SC, Liaw YP. Geographic patterns of hepatocellular carcinoma mortality with exposure to iron in groundwater in Taiwanese population: an ecological study. BMC Public Health 2013; 13:352. [PMID: 23590585 PMCID: PMC3637147 DOI: 10.1186/1471-2458-13-352] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 04/10/2013] [Indexed: 02/25/2023] Open
Abstract
BACKGROUND Many studies have examined the risk factors for HCC (including hepatitis B virus, hepatitis C virus, aflatoxin, retinol, cigarette smoking, and alcohol consumption). However, data from previous studies on the association between iron exposure, land subsidence, and HCC mortality/incidence were limited, especially in Taiwanese population. We aimed to explore the geographical distribution of HCC mortality rates by township-specific data and to evaluate the association between HCC mortality, land subsidence, and iron levels in groundwater in Taiwan. METHODS We conducted an ecological study and calculated the HCC age-standardized mortality/incidence rates according to death certificates issued in Taiwan from 1992 to 2001 and incidence data from 1995-1998. The land subsidence dataset before 2005 and iron concentrations in groundwater in 1989 are also involved in this study. Both geographical information systems and Pearson correlation coefficients were used to analyze the relationship between HCC mortality rates, land subsidence, and iron concentrations in groundwater. RESULTS Township-specific HCC mortality rates are higher in southwestern coastal townships where serious land subsidence and higher township-specific concentrations of iron in groundwater are present. The Pearson correlation coefficients of iron concentrations in groundwater and ASRs of HCC were 0.286 (P = 0.004) in males and 0.192 (P = 0.058) in females for mortality data; the coefficients were 0.375 (P < 0.001) in males and 0.210 (P = 0.038) in females for incidence data. CONCLUSIONS This study showed that HCC mortality is clustered in southwestern Taiwan and the association with the iron levels in groundwater in Taiwanese population warrant further investigation.
Collapse
Affiliation(s)
- Horng-Jeng Shyu
- Jen-Ai Hospital, Taichung City 41265, Taiwan
- Department of Healthcare Administration, Asia University, Taichung City 41354, Taiwan
| | - Chia-Chi Lung
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City 40201, Taiwan
- Department of Family and Community Medicine, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Chien-Chang Ho
- Department of Health and Leisure Management, Yuanpei University, Hsinchu City 30015, Taiwan
| | - Yi-Hua Iris Sun
- School of Dentistry, Chung Shan Medical University, Taichung City 40201, Taiwan
| | - Pei-Chieh Ko
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City 40201, Taiwan
| | - Jing-Yang Huang
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City 40201, Taiwan
| | - Chia-Chen Pan
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City 40201, Taiwan
| | - Yi-Chen Chiang
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City 40201, Taiwan
- Department of Family and Community Medicine, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Shih-Chang Chen
- Department of Leisure Industry and Health Promotion, National Ilan University, Yilan County 26047, Taiwan
| | - Yung-Po Liaw
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, Taichung City 40201, Taiwan
- Department of Family and Community Medicine, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Department of Public Health and Institute of Public Health, Chung Shan Medical University, No. 110, Sec. 1, Chien-Kuo N. Road, Taichung City 40201, Taiwan
| |
Collapse
|
4
|
An S, Soe K, Akamatsu M, Hishikawa Y, Koji T. Accelerated proliferation of hepatocytes in rats with iron overload after partial hepatectomy. Histochem Cell Biol 2012; 138:773-86. [PMID: 22825839 DOI: 10.1007/s00418-012-0994-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2012] [Indexed: 12/25/2022]
Abstract
Although iron overload is implicated in hepatocarcinogenesis, the precise mechanism was not known yet. In the present study, we investigated the effect of iron overload upon the induction of hepatocyte proliferation after 70% partial hepatectomy (PH) in rats fed with rat chow with 3% carbonyl iron for 3 months. In normal-diet rats, the increase in Ki-67 labeling index (LI) commenced at 24 h post-PH and the LIs of proliferating cell nuclear antigen (PCNA) incorporated 5-bromo-2'-deoxyuridine (BrdU) and phospho-histone H3 reached maximum values at 36 and 48 h after PH, respectively. In iron-overload rats, the above parameters occurred 12 h earlier compared to that of normal-diet rats, shortening the G0-G1 transition. Interestingly, nuclear staining for metallothionein (MT), which is essential for hepatocyte proliferation, was noted even at 0 h in iron-overload rats, while MT expression occurred at 6 h in the normal rats. Moreover, nuclear factor kappa B (NF-κB) expression, which is an essential early event leading to liver regeneration, was detected in Kupffer cells at 0 h in iron-overload rats. These results may indicate that overloaded iron, maybe through the induction of MT and NF-κB, may keep liver as a state ready to regenerate in response to PH, by bypassing signal transduction cascades involved in the initiation of liver regeneration.
Collapse
Affiliation(s)
- Shucai An
- Department of Histology and Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4, Sakamoto, Nagasaki, 852-8523, Japan
| | | | | | | | | |
Collapse
|
5
|
Tabatabaei SV, Alavian SM, Keshvari M, Behnava B, Miri SM, Karimi Elizee P, Zamani F, Amini Kafiabad S, Gharehbaghian A, Hajibeigy B, Lankarani KB. Low dose ribavirin for treatment of hepatitis C virus infected thalassemia major patients; new indications for combination therapy. HEPATITIS MONTHLY 2012; 12:372-81. [PMID: 22879826 PMCID: PMC3412553 DOI: 10.5812/hepatmon.6592] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 05/15/2012] [Accepted: 05/30/2012] [Indexed: 02/05/2023]
Abstract
BACKGROUND Treatment guidelines contraindicate ribavirin for treatment of hepatitis C virus (HCV) infection in thalassemia major patients. Nevertheless, the current evidence suggests that ribavirin might be tolerated by these patients. OBJECTIVES Despite this evidence, low dose ribavirin combination therapy has not been compared with peginterferon monotherapy in these patients so far. PATIENTS AND METHODS Two hundred eighty thalassemia patients with detectable HCV-RNA PCR (≥ 50 IU/mL) and liver histology consistent with chronic HCV infection were self-assigned to receive peginterferon alfa-2a (n = 81) monotherapy or its combination therapy with ribavirin, 600-800 mg QD, according to hemoglobin levels (n = 199). Treatment experienced patients were eligible for this study. RESULTS Sustained virological response (SVR) was significantly higher in patients who received ribavirin (51 % vs. 38 % P = 0.02). In multivariate regression, OR of ribavirin for prediction of SVR was 2.2 (95 % CI 1.24-3.91). The SVR was significantly higher in the ribavirin group in subgroups of patients with more than 24 years of age, elevated ALT, ferritin < 2006 ng/mL, previous treatment failure, genotype 1, positive history of splenectomy, fibrosis score of 0-4 HAI and viral load < 600,000 IU/mL. Treatment discontinuations due to the safety concerns were comparable between the treatment groups (6.5 and 8 %). Furthermore, transfusion intervals were almost halved in patients who received low dose ribavirin. CONCLUSIONS According to the present study, adult thalassemia patients with HCV infection can be treated successfully with low dose ribavirin. Hence, we strongly advise combination therapy in thalassemia patients with aforementioned clinical characteristics. Moreover, ribavirin does not seem to be beneficial in thalassemia patients below 18 years of age.
Collapse
Affiliation(s)
- Seyed Vahid Tabatabaei
- Baqiyatallah Research Center for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
| | - Seyed Moayed Alavian
- Baqiyatallah Research Center for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Seyed-Moayed Alavian, Baqiyatallah Research Center for Gastroenterology and Liver Disease, Baqiyatallah Hospital, Mollasadra Ave., Vanak Sq. P.O. Box: 14155-3651, Tehran, IR Iran. Tel.: +98-2188067114, Fax: +98-2188067114, E-mail:
| | - Maryam Keshvari
- Iranian Blood Transfusion Organization Research Centre (IBTO), Tehran, IR Iran
| | - Bita Behnava
- Baqiyatallah Research Center for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
| | - Seyyed Mohammad Miri
- Baqiyatallah Research Center for Gastroenterology and Liver Disease, Baqiyatallah University of Medical Sciences, Tehran, IR Iran
| | - Pegah Karimi Elizee
- Iranian Blood Transfusion Organization Research Centre (IBTO), Tehran, IR Iran
| | - Farhad Zamani
- Liver Disease Research Center, Iran University of Medical Sciences, Tehran, IR Iran
| | | | - Ahmad Gharehbaghian
- Iranian Blood Transfusion Organization Research Centre (IBTO), Tehran, IR Iran
| | - Bashir Hajibeigy
- Iranian Blood Transfusion Organization Research Centre (IBTO), Tehran, IR Iran
| | | |
Collapse
|
6
|
Diverse Effects of FK506 on the Apoptosis of Hepatocytes and Infiltrating Lymphocytes in an Allografted Rat Liver. J Surg Res 2011; 167:131-9. [DOI: 10.1016/j.jss.2009.06.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2009] [Revised: 05/27/2009] [Accepted: 06/12/2009] [Indexed: 12/22/2022]
|
7
|
Tabatabaei SV, Alavian SM, Keshvari M, Behnava B, Miri SM, Elizee PK, Zamani F, Kafi-Abad SA, Gharehbaghian A, Hajibeigy B, Lankarani KB. WITHDRAWN: Low dose ribavirin for treatment of HCV infected thalassemia major patients: New indications for combination therapy. J Hepatol 2010:S0168-8278(10)01087-1. [PMID: 21145858 DOI: 10.1016/j.jhep.2010.10.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2010] [Revised: 10/18/2010] [Accepted: 10/19/2010] [Indexed: 01/19/2023]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
Collapse
Affiliation(s)
- Seyed Vahid Tabatabaei
- Baqiyatallah University of Medical Sciences, Baqiyatallah Research Center for Gastroenterology and Liver Disease, Tehran, Iran
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|