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Sasatani M, Xi Y, Daino K, Ishikawa A, Masuda Y, Kajimura J, Piao J, Zaharieva EK, Honda H, Zhou G, Hamasaki K, Kusunoki Y, Shimura T, Kakinuma S, Shimada Y, Doi K, Ishikawa-Fujiwara T, Sotomaru Y, Kamiya K. Rev1 overexpression accelerates N-methyl-N-nitrosourea (MNU)-induced thymic lymphoma by increasing mutagenesis. Cancer Sci 2024. [PMID: 38572512 DOI: 10.1111/cas.16159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/28/2024] [Accepted: 03/10/2024] [Indexed: 04/05/2024] Open
Abstract
Rev1 has two important functions in the translesion synthesis pathway, including dCMP transferase activity, and acts as a scaffolding protein for other polymerases involved in translesion synthesis. However, the role of Rev1 in mutagenesis and tumorigenesis in vivo remains unclear. We previously generated Rev1-overexpressing (Rev1-Tg) mice and reported that they exhibited a significantly increased incidence of intestinal adenoma and thymic lymphoma (TL) after N-methyl-N-nitrosourea (MNU) treatment. In this study, we investigated mutagenesis of MNU-induced TL tumorigenesis in wild-type (WT) and Rev1-Tg mice using diverse approaches, including whole-exome sequencing (WES). In Rev1-Tg TLs, the mutation frequency was higher than that in WT TL in most cases. However, no difference in the number of nonsynonymous mutations in the Catalogue of Somatic Mutations in Cancer (COSMIC) genes was observed, and mutations involved in Notch1 and MAPK signaling were similarly detected in both TLs. Mutational signature analysis of WT and Rev1-Tg TLs revealed cosine similarity with COSMIC mutational SBS5 (aging-related) and SBS11 (alkylation-related). Interestingly, the total number of mutations, but not the genotypes of WT and Rev1-Tg, was positively correlated with the relative contribution of SBS5 in individual TLs, suggesting that genetic instability could be accelerated in Rev1-Tg TLs. Finally, we demonstrated that preleukemic cells could be detected earlier in Rev1-Tg mice than in WT mice, following MNU treatment. In conclusion, Rev1 overexpression accelerates mutagenesis and increases the incidence of MNU-induced TL by shortening the latency period, which may be associated with more frequent DNA damage-induced genetic instability.
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Affiliation(s)
- Megumi Sasatani
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yang Xi
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Department of Biochemistry and Molecular Biology and Zhejiang Key Laboratory of Pathophysiology, School of Basic Medical Sciences, Health Science Center, Ningbo University, Ningbo, China
| | - Kazuhiro Daino
- Department of Radiation Effects Research, Institute for Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Atsuko Ishikawa
- Department of Radiation Effects Research, Institute for Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Yuji Masuda
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Department of Genome Dynamics, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
- Department of Molecular Pharmaco-Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Junko Kajimura
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Biosample Research Center, Radiation Effects Research Foundation, Hiroshima, Japan
| | - Jinlian Piao
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Gastroenterological and Transplant Surgery, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Elena Karamfilova Zaharieva
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Hiroaki Honda
- Institute of Laboratory Animals, Tokyo Women's Medical University, Tokyo, Japan
| | - Guanyu Zhou
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Kanya Hamasaki
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima, Japan
| | - Yoichiro Kusunoki
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima, Japan
| | - Tsutomu Shimura
- Department of Environmental Health, National Institute of Public Health, Saitama, Japan
| | - Shizuko Kakinuma
- Department of Radiation Effects Research, Institute for Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, Japan
| | | | - Kazutaka Doi
- Department of Radiation Regulatory Science Research, Institute for Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, Japan
| | | | - Yusuke Sotomaru
- Natural Science Center for Basic Research and Development, Hiroshima University, Hiroshima, Japan
| | - Kenji Kamiya
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
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Ohira M, Kobayashi T, Tanaka Y, Imaoka Y, Sato K, Imaoka K, Nakano R, Doskali M, Piao J, Nakamura M, Yoshida T, Ichinohe T, Kawano R, Yoshimura K, Ueda K, Tamura N, Hirata T, Imamura M, Aikata H, Tanimine N, Kuroda S, Tahara H, Ide K, Ohdan H. Adoptive immunotherapy with natural killer cells from peripheral blood CD34 + stem cells to prevent hepatocellular carcinoma recurrence after curative hepatectomy: a study protocol for an open-label, single-arm phase I study. BMJ Open 2022; 12:e064526. [PMID: 36410831 PMCID: PMC9680173 DOI: 10.1136/bmjopen-2022-064526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Hepatocellular carcinoma (HCC) remains a major clinical problem as more than half of these cases recur after radical resection. Natural killer (NK) cells are at the forefront of the innate immune system and attack microcarcinomas and circulating tumour cells. The objective of this study was to evaluate the feasibility and toxicity of peripheral blood CD34+ stem cell-derived NK cell infusion after radical hepatectomy for HCC. METHODS AND ANALYSIS This is an open-label, single-arm, single-centre phase I study. Patients who have undergone initial hepatectomy for HCC with three or more risk factors for recurrence (≥10 ng/mL of Alpha fetoprotein (AFP), ≥360 mAU/mL of PIVKA-II, multiple tumours and ≥3 peripheral blood circulating tumour cells) will be enrolled and be treated with three peripheral blood CD34+ stem cell-derived NK cell infusions every 3 months. The primary endpoint will be safety assessment including the type and severity of adverse events, frequency of occurrence and duration of occurrence. The secondary endpoints will include survival, effect of immune response and clinical laboratory test results. ETHICS AND DISSEMINATION Ethical approval of the trial was obtained from the Certified Committee for Regenerative Medicine Hiroshima University in Japan. The trial results will be shared with the scientific community at international conferences and by publication in a peer-reviewed journal. TRIAL REGISTRATION NUMBER jRCTb060200020.
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Affiliation(s)
- Masahiro Ohira
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
- Medical Center for Translational and Clinical Research, Hiroshima University, Hiroshima, Japan
| | - Tsuyoshi Kobayashi
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Yuka Tanaka
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Yuki Imaoka
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Koki Sato
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Koki Imaoka
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Ryosuke Nakano
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Marlen Doskali
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Jinlian Piao
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Mayuna Nakamura
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Tetsumi Yoshida
- Department of Hematology and Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - Tatsuo Ichinohe
- Department of Hematology and Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - Reo Kawano
- Clinical Research Center, Hiroshima University Hospital, Hiroshima, Japan
| | - Kenichi Yoshimura
- Medical Center for Translational and Clinical Research, Hiroshima University, Hiroshima, Japan
| | - Keiko Ueda
- Clinical Research Center, Hiroshima University Hospital, Hiroshima, Japan
| | - Natsuko Tamura
- Clinical Research Center, Hiroshima University Hospital, Hiroshima, Japan
| | - Taizo Hirata
- Clinical Research Center, Hiroshima University Hospital, Hiroshima, Japan
| | - Michio Imamura
- Department of Gastroenterology, Hiroshima University, Hiroshima, Japan
| | - Hiroshi Aikata
- Department of Gastroenterology, Hiroshima University, Hiroshima, Japan
| | - Naoki Tanimine
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Shintaro Kuroda
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Hiroyuki Tahara
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Kentaro Ide
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, Hiroshima, Japan
- Clinical Research Center, Hiroshima University Hospital, Hiroshima, Japan
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Liu B, Anno K, Kobayashi T, Piao J, Tahara H, Ohdan H. Influence of donor liver telomere and G-tail on clinical outcome after living donor liver transplantation. PLoS One 2019; 14:e0213462. [PMID: 30845248 PMCID: PMC6405121 DOI: 10.1371/journal.pone.0213462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 10/19/2018] [Accepted: 02/19/2019] [Indexed: 11/26/2022] Open
Abstract
It has been reported that donor age affects patient outcomes after liver transplantation, and that telomere length is associated with age. However, to our knowledge, the impact of donor age and donor liver telomere length in liver transplantation has not been well investigated. This study aimed to clarify the influence of the length of telomere and G-tail from donor livers on the outcomes of living donors and recipients after living donor liver transplantation. The length of telomere and G-tail derived from blood samples and liver tissues of 55 living donors, measured using the hybridization protection assay. The length of telomeres from blood samples was inversely correlated with ages, whereas G-tail length from blood samples and telomere and G-tail lengths from liver tissues were not correlated with ages. Age, telomere, and G-tail length from blood did not affect postoperative liver failure and early liver regeneration of donors. On the other hand, the longer the liver telomere, the poorer the liver regeneration tended to be, especially with significant difference in donor who underwent right hemihepatectomy. We found that the survival rate of recipients who received liver graft with longer telomeres was inferior to that of those who received liver graft with shorter ones. An elderly donor, longer liver telomere, and higher Model for End-Stage Liver Disease score were identified as independent risk factors for recipient survival after transplantation. In conclusion, telomere shortening in healthy liver does not correlate with age, whereas longer liver telomeres negatively influence donor liver regeneration and recipient survival after living donor liver transplantation. These results can direct future studies and investigations on telomere shortening in the clinical and experimental transplant setting.
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Affiliation(s)
- Biou Liu
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kumiko Anno
- Department of Cellular and Molecular Biology, Graduate School of Pharmaceutical Sciences, Hiroshima University, Hiroshima, Japan
| | - Tsuyoshi Kobayashi
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- * E-mail:
| | - Jinlian Piao
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hidetoshi Tahara
- Department of Cellular and Molecular Biology, Graduate School of Pharmaceutical Sciences, Hiroshima University, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Abe T, Tanaka Y, Piao J, Tanimine N, Oue N, Hinoi T, Garcia NV, Miyasaka M, Matozaki T, Yasui W, Ohdan H. Signal regulatory protein alpha blockade potentiates tumoricidal effects of macrophages on gastroenterological neoplastic cells in syngeneic immunocompetent mice. Ann Gastroenterol Surg 2018; 2:451-462. [PMID: 30460349 PMCID: PMC6236110 DOI: 10.1002/ags3.12205] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 09/05/2017] [Revised: 06/10/2018] [Accepted: 07/29/2018] [Indexed: 12/21/2022] Open
Abstract
AIM Immunotherapies blocking the CD47-SIRPα pathway by targeting CD47 enhance macrophage phagocytosis of neoplastic cells in mouse models. As SIRPα exhibits relatively restricted tissue expression, SIRPα antagonists may be better tolerated than agents targeting CD47, which is ubiquitously expressed in many tissues. Here, we investigated the therapeutic impact of monoclonal antibodies (mAbs) against CD47 and/or SIRPα on gastroenterological tumors in syngeneic immunocompetent mouse models. METHODS We used in vitro and in vivo phagocytosis assays in C57BL/6J (B6) mice to investigate anti-CD47/SIRPα mAb effects on Hepa1-6 and CMT93 originating from B6 mice. The influence of these mAbs on macrophage transmigration was also assessed. To investigate anti-SIRPα mAb therapy-induced inhibitory effects on sporadic colon cancer growth, we used a CDX2P9.5-NLS Cre;APC + /FLOX (CPC-APC) mouse model. RESULTS Systemic anti-SIRPα mAb administration significantly increased Hepa1-6 and CMT93 cell susceptibility to macrophage phagocytosis, both in vitro and in vivo. Conversely, similarly administered anti-CD47 mAb did not promote macrophage phagocytosis of target cells, whereas cells incubated with anti-CD47 mAb prior to inoculation were more susceptible to macrophage phagocytosis. In vitro cell migration assays revealed that binding with anti-CD47 mAb inhibited macrophage transmigration. Anti-SIRPα mAb treatment inhibited tumor progression in CPC-APC mice and significantly improved overall survival. Anti-CD47 mAb administration in vivo eliminated the phagocytosis-promoting CD47 blockade effect, probably by inhibiting macrophage transmigration/chemotaxis. In contrast, anti-SIRPα mAb exhibited enhanced macrophage phagocytic activity and marked anti-tumor effects against gastroenterological malignancies. CONCLUSION SIRPα mAb augmentation of macrophage phagocytic activity may represent an effective treatment strategy for human gastrointestinal tumors.
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Affiliation(s)
- Tomoyuki Abe
- Department of Gastroenterological and Transplant SurgeryGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Yuka Tanaka
- Department of Gastroenterological and Transplant SurgeryGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Jinlian Piao
- Department of Gastroenterological and Transplant SurgeryGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Naoki Tanimine
- Department of Gastroenterological and Transplant SurgeryGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Naohide Oue
- Department of Molecular PathologyHiroshima University Graduate School of Biomedical SciencesHiroshimaJapan
| | - Takao Hinoi
- Division of Molecular OncologyDepartment of SurgeryInstitute for Clinical ResearchNational Hospital Organization Kure Medical Center & Chugoku Cancer CenterHiroshimaJapan
| | - Noel Verjan Garcia
- Faculty of Veterinary Medicine, Immunobiology and Pathogenesis Research GroupAltos de Santa HelenaUniversity of TolimaIbagueColombia
| | - Masayuki Miyasaka
- Institute of Academic InitiativesOsaka UniversitySuitaJapan
- MediCity Research LaboratoryUniversity of TurkuTurkuFinland
| | - Takashi Matozaki
- Division of Molecular and Cellular SignalingDepartment of Biochemistry and Molecular BiologyKobe University Graduate School of MedicineKobeJapan
| | - Wataru Yasui
- Department of Molecular PathologyHiroshima University Graduate School of Biomedical SciencesHiroshimaJapan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant SurgeryGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
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Sasatani M, Xi Y, Kajimura J, Kawamura T, Piao J, Masuda Y, Honda H, Kubo K, Mikamoto T, Watanabe H, Xu Y, Kawai H, Shimura T, Noda A, Hamasaki K, Kusunoki Y, Zaharieva EK, Kamiya K. Overexpression of Rev1 promotes the development of carcinogen-induced intestinal adenomas via accumulation of point mutation and suppression of apoptosis proportionally to the Rev1 expression level. Carcinogenesis 2017; 38:570-578. [PMID: 28498946 PMCID: PMC5872566 DOI: 10.1093/carcin/bgw208] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cancer development often involves mutagenic replication of damaged DNA by the error-prone translesion synthesis (TLS) pathway. Aberrant activation of this pathway plays a role in tumorigenesis by promoting genetic mutations. Rev1 controls the function of the TLS pathway, and Rev1 expression levels are associated with DNA damage induced cytotoxicity and mutagenicity. However, it remains unclear whether deregulated Rev1 expression triggers or promotes tumorigenesis in vivo. In this study, we generated a novel Rev1-overexpressing transgenic (Tg) mouse and characterized its susceptibility to tumorigenesis. Using a small intestinal tumor model induced by N-methyl-N-nitrosourea (MNU), we found that transgenic expression of Rev1 accelerated intestinal adenoma development in proportion to the Rev1 expression level; however, overexpression of Rev1 alone did not cause spontaneous development of intestinal adenomas. In Rev1 Tg mice, MNU-induced mutagenesis was elevated, whereas apoptosis was suppressed. The effects of hREV1 expression levels on the cytotoxicity and mutagenicity of MNU were confirmed in the human cancer cell line HT1080. These data indicate that dysregulation of cellular Rev1 levels leads to the accumulation of mutations and suppression of cell death, which accelerates the tumorigenic activities of DNA-damaging agents.
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Affiliation(s)
- Megumi Sasatani
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Yang Xi
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan.,Diabetes Center, Zhejiang Provincial Key Laboratory of Pathophysiology, Institute of Biochemistry and Molecular Biology, School of Medicine, Ningbo University, Ningbo 315211, China
| | - Junko Kajimura
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan.,Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima 732-0815, Japan
| | - Toshiyuki Kawamura
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Jinlian Piao
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Yuji Masuda
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan.,Department of Genome Dynamics, Research Institute of Environmental Medicine, Nagoya University, Nagoya 464-8601, Japan.,Department of Toxicogenomics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hiroaki Honda
- Department of Disease Model, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Kei Kubo
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Takahiro Mikamoto
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Hiromitsu Watanabe
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Yanbin Xu
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Hidehiko Kawai
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Tsutomu Shimura
- Department of Environmental Health, National Institute of Public Health, 2-3-6, Minami, Wako, Saitama 351-0197, Japan and
| | - Asao Noda
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima 732-0815, Japan
| | - Kanya Hamasaki
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima 732-0815, Japan
| | - Yoichiro Kusunoki
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima 732-0815, Japan
| | - Elena Karamfilova Zaharieva
- Department of Genetics and Cell Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Kenji Kamiya
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
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Tanimine N, Tanaka Y, Abe T, Piao J, Ishiyama K, Kobayashi T, Ide K, Ohira M, Tahara H, Shimizu S, Saeki Y, Sakai H, Yano T, Ohdan H. MELD and Child-Pugh Scores Are Related to Immune Status of Intrahepatic Natural Killer Cells in Liver Transplant Candidates. Transplant Proc 2017; 49:98-101. [PMID: 28104168 DOI: 10.1016/j.transproceed.2016.11.020] [Citation(s) in RCA: 2] [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] [Indexed: 11/26/2022]
Abstract
BACKGROUND The role and phenotypic alterations of intrahepatic natural killer (NK) cells in liver disease were investigated. Although intrahepatic NK cells reportedly functionally deteriorate in the fibrotic liver, it remains unclear how the clinical severity of liver disease affects intrahepatic NK cells in patients with advanced liver failure. METHODS We analyzed the phenotypic properties of intrahepatic NK cells by using mononuclear cells extracted from ex vivo liver perfusate effluents from patients who underwent liver transplantation. The relationship between the clinical severity of liver disease and the phenotype of intrahepatic NK cells in these patients was also evaluated. To estimate the immunological responsiveness of intrahepatic NK cells, phenotypic enhancement after interleukin-2 stimulation was analyzed. RESULTS Intrahepatic NK cells from patients with advanced liver failure exhibited down-regulated monomodal expression of NKp46, a major activating molecule. Notably, the expression level of NKp46 decreased depending on the severity of liver disease, Model for End-Stage Liver Disease score, and Child-Pugh score rather than the etiology. After in vitro recombinant interleukin-2 stimulation, the enhancement of expression of cytotoxic molecules, NKp44, and tumor necrosis factor-related apoptosis-inducing ligand was significantly impaired in intrahepatic NK cells from patients with liver failure, concurrently with decreased expression of CD122 and interleukin-2 receptor beta. CONCLUSIONS Our results suggest that terminal deterioration of liver environments by chronic liver disease impairs the potential of local NK cells, depending on the severity of the deterioration. These influences of advanced liver failure on intrahepatic NK cells may be attributed to multicentric carcinogenesis in patients with liver failure.
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Affiliation(s)
- N Tanimine
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Tanaka
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Abe
- Department of Surgery, Onomichi General Hospital, Hiroshima, Japan
| | - J Piao
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Ishiyama
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Kobayashi
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Ide
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - M Ohira
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Tahara
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - S Shimizu
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Saeki
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Sakai
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Yano
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Ohdan
- Gastroenterological and Transplant Surgery, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan.
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Li Y, Liu B, Song T, Xu S, Piao J, Liang B, Xu X, Guo B, Wei R, Zhou F. SU-F-T-620: Development of a Convolution/Superposition Dose Engine for CyberKnife System. Med Phys 2016. [DOI: 10.1118/1.4956805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Piao J, Xu S, Wu Z, Li Y, Qu B, Duan X, Liu Y. SU-F-T-619: Dose Evaluation of Specific Patient Plans Based On Monte Carlo Algorithm for a CyberKnife Stereotactic Radiosurgery System. Med Phys 2016. [DOI: 10.1118/1.4956804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Piao J, You K, Guo Y, Zhang Y, Li Z, Geng L. HPV16 E6 mutations and p53 codon72 polymorphism among women with cervical intraepithelial neoplasia 2 and 3 in China. EUR J GYNAECOL ONCOL 2016; 37:649-652. [PMID: 29787003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To study the distribution of HPV16 E6 gene mutations and p53 codon72 polymorphism among women with HPV16+ cervical precancerous lesions and explore their relationship with the risk of cervical intraepithelial neoplasia (CIN) 2, 3. Materials and Meth- ods: This study analyzed a total of 112 cases of exfoliated HPV16+ cervical cell specimens which were divided into group I (normal and CIN1, 55 cases) and group2 (CIN2, 3, 57 cases). Among the 112 specimens, 85 cases were successfully amplified for HPV E6 gene by PCR and the PCR products were sequenced directly. P53 codon72 region was also amplified from the 112 specimens and the PCR products were sequenced directly and compared with the standard sequence. RESULTS Among the 85 amplified HPV sequences, point mutations such as T178G, T350G, G132A, A442C, T310G, G94T, C551A, etc. were found, among which, T178G showed the highest rate (51.76%). The rate of HPV16 E6 mutation T178G in CIN2, 3 group was significantly higher than that in normal and CINI group, i.e., in the 112 amplified p53 codon72 sequences, the distribution of Pro/Pro genotype in normal, and CIN1 group was significantly different from that in CIN2, 3 groups, and the disease risk of Pro/Pro genotype was much higher than that of Arg/Arg and Arg/Pro genotypes. CONCLUSION HPV16 E6 T178G mutation increases the disease risk of CIN2, 3. Meanwhile, compared with Arg/Arg and Arg/Pro genotypes, p53 codon72 Pro/Pro genotype more associated with the disease risk of CIN2, 3.
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Liu X, Piao J, Li M, Zhang Y, Yun C, Yang C, Yang X. Assessment of selenium nutritional status of school-age children from rural areas of China in 2002 and 2012. Eur J Clin Nutr 2015; 70:405-8. [DOI: 10.1038/ejcn.2015.194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 10/01/2015] [Accepted: 10/06/2015] [Indexed: 11/09/2022]
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Floyd SR, Pacold ME, Clarke SM, Blake E, Fydrych A, Ho R, Lee MJ, Root DE, Carpenter AE, Sabatini DM, French CA, Bradner JE, Chen CC, Yaffe MB, Le Rhun E, Massin F, Lefevre A, Bonneterre J, Bittencourt MDC, Faure G, Hiramatsu R, Kawabata S, Yamada Y, Miyatake SI, Kuroiwa T, Li S, Chou AP, Chen W, Chen R, Deng Y, Phillips HS, Faull KF, Cloughesy T, Liau LM, Lai A, Mori K, Ishikura R, Tomogane Y, Izumoto S, Arita N, Piao J, Auyeung G, Policarpio E, Tabar V, Yeung TPC, Morrison L, Hoffman L, Lee TY, Bauman G, Yartsev S, Ryu S, Kolozsvary A, Lapanowski M, Jenrow K, Brown S, Kim JH, Brown RJ, Love J, Warburton D, McBride W, Bluml S, Ren X, Vanderwaal B, Jaboin J, Baldock AL, Anh S, Rockne R, Neal M, Clark-Swanson K, Sterin G, Trister AD, Malone H, Ebiana V, Sonabend AM, Mrugala M, Rockhill JK, Silbergeld DL, Lai A, Cloughesy T, McKhann GM, Bruce JN, Rostomily R, Canoll P, Swanson KR, Hawkins-Daarud A, Baldock A, Bridge C, Corwin D, Rockhill JK, Mrugala MM, Rockne R, Swanson KR, Baldock AL, Yagle K, Anh S, Born D, Swanson P, Rockne R, Swanson KR, Hawkins-Daarud A, Rockne R, Swanson KR. LAB-RADIOBIOLOGY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Masuda Y, Piao J, Kamiya K. DNA Replication-Coupled PCNA Mono-Ubiquitination and Polymerase Switching in a Human In Vitro System. J Mol Biol 2010; 396:487-500. [DOI: 10.1016/j.jmb.2010.01.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2009] [Revised: 12/14/2009] [Accepted: 01/05/2010] [Indexed: 10/20/2022]
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Piao J, Masuda Y, Kamiya K. Specific amino acid residues are involved in substrate discrimination and template binding of human REV1 protein. Biochem Biophys Res Commun 2010; 392:140-4. [PMID: 20059978 DOI: 10.1016/j.bbrc.2009.12.167] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2009] [Accepted: 12/30/2009] [Indexed: 11/27/2022]
Abstract
REV1 is a member of the Y-family DNA polymerases, but is atypical in utilizing only dCTP with a preference for guanine (G) as the template. Crystallography of the REV1-DNA-dCTP ternary complex has revealed a unique mechanism by which template G is evicted from the DNA helix and incoming dCTP is recognized by an arginine residue in an alpha-loop, termed the N-digit. To better understand functions of its individual amino acid residues, we made a series of mutant human REV1 proteins. We found that R357 and L358 play vital roles in template binding. Furthermore, extensive mutation analysis revealed a novel function of R357 for substrate discrimination, in addition to previously proposed specific interaction with incoming dCTP. We found that the binding pocket for dCTP of REV1 has also significant but latent affinity for dGTP. The results suggest that the positive charge on R357 could prevent interaction with dGTP. We propose that both direct and indirect mechanisms mediated by R357 ensure specificity for dCTP.
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Affiliation(s)
- Jinlian Piao
- Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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Zhu L, Piao J, Xia Y, Cheng Y, Zhou R. The antioxidative ability of erythrocyte of children with different selenium status. Acta Pharmacol Toxicol (Copenh) 2009; 59 Suppl 7:331-5. [PMID: 3022550 DOI: 10.1111/j.1600-0773.1986.tb02773.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Abstract
Analyses of data from the representative 2002 National Nutrition and Health Survey were used to assess the likelihood of metabolic complications of overweight and obesity in Chinese children aged 7-17 years. Chinese criteria for body mass index classification were used for overweight and obesity with the 75th percentile US adolescent values for waist circumferences and all the metabolic criteria for blood pressure, lipids, fasting glucose established for US adolescents. Diabetes in 7-12-year-olds was 0.2% and 0.4% in children aged 12-18 years. Prevalences of dyslipidaemia (61.9%), hypertriglyceridaemia (18.2%) and low high-density lipoprotein cholesterol (56.1%) were high and 16.0% of 15-18 years had hypertension. The overall prevalence of the metabolic syndrome was 3.3% with more than half the children having at least one metabolic abnormality and 19.8% having at least two. All the metabolic parameters were significantly elevated in the overweight and obese children except high-density lipoprotein cholesterol. These data emphasize the marked sensitivity of Chinese children to the metabolic complications of overweight and obesity and amplify the need for early preventive measures.
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Affiliation(s)
- Y Li
- National Institute for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing, China
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Masuda Y, Suzuki M, Piao J, Gu Y, Tsurimoto T, Kamiya K. Dynamics of human replication factors in the elongation phase of DNA replication. Nucleic Acids Res 2007; 35:6904-16. [PMID: 17932049 PMCID: PMC2175312 DOI: 10.1093/nar/gkm822] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In eukaryotic cells, DNA replication is carried out by coordinated actions of many proteins, including DNA polymerase δ (pol δ), replication factor C (RFC), proliferating cell nuclear antigen (PCNA) and replication protein A. Here we describe dynamic properties of these proteins in the elongation step on a single-stranded M13 template, providing evidence that pol δ has a distributive nature over the 7 kb of the M13 template, repeating a frequent dissociation–association cycle at growing 3′-hydroxyl ends. Some PCNA could remain at the primer terminus during this cycle, while the remainder slides out of the primer terminus or is unloaded once pol δ has dissociated. RFC remains around the primer terminus through the elongation phase, and could probably hold PCNA from which pol δ has detached, or reload PCNA from solution to restart DNA synthesis. Furthermore, we suggest that a subunit of pol δ, POLD3, plays a crucial role in the efficient recycling of PCNA during dissociation–association cycles of pol δ. Based on these observations, we propose a model for dynamic processes in elongation complexes.
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Affiliation(s)
- Yuji Masuda
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan.
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Abstract
Since national figures on the occurrence of metabolic syndrome among Chinese adolescents are lacking, this study aims to estimate its prevalence and distribution among Chinese youngsters. The 2002 China National Nutrition and Health Survey is a nationally representative cross-sectional study. Applying the criteria for US adolescents, we estimated the prevalence of metabolic syndrome among 2761 adolescents aged 15 to 19 years. The prevalence of metabolic syndrome among Chinese adolescents overall was 3.7 % (10 % in US adolescents). It was 35.2 %, 23.4 % and 2.3 % among adolescents who were overweight (BMI > or = 95th percentile), at risk of overweight (BMI between 85th and 95th percentile) and normal weight (BMI below the 85th percentile), respectively. Urban boys had the highest rate (5.8 %) compared with girls and rural youngsters. Among adolescents who had a BMI > or = 85th percentile and one or two parent(s) with metabolic syndrome, the prevalence was 46.4 %. A total of 96 % of overweight adolescents had at least one and 74.1 % overweight adolescents had at least two abnormalities of metabolic syndrome. Based on these figures, it is estimated that more than three million Chinese adolescents have metabolic syndrome. Both overweight and metabolic syndrome prevalence among adolescents are still relatively low in China, but the prevalence of metabolic syndrome among Chinese overweight adolescents is similar to those living in the USA.
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Affiliation(s)
- Y Li
- National Institute for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing, China
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Egashira N, Shimamoto T, Inoue K, Piao J, Uda T. Fractionation of PCDDs, PCBs, and pesticides by column chromatography on exfoliated graphites. ANAL SCI 2001; 17:783-4. [PMID: 11707952 DOI: 10.2116/analsci.17.783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- N Egashira
- Department of Bioscience Development, School of Biosciences, Hiroshima Prefectural University, Shobara, Hiroshima 727-0023, Japan
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Shi L, Piao J. [Indicators for the assessment of iodine nutritional status]. Wei Sheng Yan Jiu 2000; 29:252-5. [PMID: 12520935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Selecting appropriate evaluation indicators for surveying and monitoring iodine nutritional status is needed. The indicators, which are used commonly in recent literature, are urinary iodine, thyroid volume, dietary iodine intake, thyroid function parameters and intelligence quotient. These indicators are summarized on their clinical significance, application range, expression method and so on. The purpose of this review is to provide some scientific references for people who are working on prevention and treatment of iodine deficiency disorders.
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Affiliation(s)
- L Shi
- Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, Beijing 100050, China
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Zhou S, Piao J, Xu J, Yang X. [Research on some enzyme activities in the assessment of zinc nutritional status of growing rats]. Wei Sheng Yan Jiu 1999; 28:283-5. [PMID: 12712698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Male weaning rats were divided randomly into five groups. They were fed with diets containing zinc deficient(DZ), high zinc(HZ), normal zinc (NZ) and high zinc pair-fed with zinc deficient group(HZP) respectively. The rats in DZ and HZ groups were exchanged diets after 20 days. A part of rats in each group were killed at days 20, 50 and 70. The activities of alkaline phosphatase(ALP), 5'-nucleotidase(5'-NT) and copper-zinc-superoxidase dismutase(Cu-Zn-SOD), the zinc concentration in plasma and kidney were determined to assess the better indices for zinc nutrition. The results indicted that: The activities of ALP in DZ group at 20 d was significantly lower than that in the same group at the beginning, in the HZ group and in the HZP group, and increased significantly after the diet was changed to HZ diet after 30 days. The activities of 5'-NT in DZ group rats was decreasing with the extension of experimental period. These results indicated that the activities of ALP and 5'-NT were sensitive to zinc supplementation even though they were changed a little during zinc exhausted. The activity of ALP was decreasing with growing, and the activity of 5'-NT was increased with growing. Zinc concentration in plasma of DZ group was significantly lower than that of other groups which include DZ-HZ group at the 50th day, and it was also the lowest among groups at the end of experiment. Zinc concentration in the kidney of HZ-DZ group was significantly lower than that of HZ and DZ-HZ groups by the end of experiment. There were little changes of the activity of Cu-Zn SOD and the zinc content in kidney during the experiment period. These results indicated that the activities of both ALP and 5'-NT and plasma zinc were sensitive to zinc supplementacior and zinc deficiency.
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Affiliation(s)
- S Zhou
- Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, Beijing 100050, China
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Piao J, Zhang Z, Yang X, Tian Y. [Priority of selenium incorporation into selenoproteins during selenium depletion in rats]. Wei Sheng Yan Jiu 1999; 28:158-61. [PMID: 12712721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Male weanling Wistar rats were fed with either a basal selenium deficient diet (a Torula yeast based semisynthetic diet, containing Se 0.01 mg/kg) or a selenium sufficient diet supplemented with Se as Na2SeO3 (containing Se 0.5 mg/kg). Rats were killed after different weeks(0,1,2,4,8,12,15,17,19,20 and 24 respectively). Their organs were taken to observe the kinetic change of selenium concentration, the activities of intracellular glutathione peroxidase (cGPX), extracellular glutathione peroxidase (eGPX), and phospholipid hydroperoxide glutathione peroxidase (PHGPX) in different organs. The results showed that selenium levels and the activities of selenoenzyme in testis and pituitary were more resistant to selenium deficiency than other organs. During selenium deficiency, the utilization of selenium by PHGPX and deiodinase was prior to eGPX and cGPX, which suggested that the function of PHGPX and deiodinase were more important than that of eGPX and cGPX.
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Affiliation(s)
- J Piao
- Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, Beijing 100050
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