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Inductive transcription and protective role of fish heme oxygenase-1 under hypoxic stress
Wang, Dan; Zhong, Xue-Ping; Qiao, Zhi-Xian; Gui, Jian-Fang; Gui, JF, Chinese Acad Sci, Grad Sch, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2008-08-15
Source PublicationJOURNAL OF EXPERIMENTAL BIOLOGY
ISSN0022-0949
Volume211Issue:16Pages:2700-2706
AbstractHeme oxygenase-1 is the rate-limiting enzyme in the degradation of heme into biliverdin, carbon monoxide and free divalent iron. In this study, we cloned heme oxygenase isoform 1 (CaHO-1) from a hypoxia-tolerant teleost fish Carassius auratus. The full-length cDNA of CaHO-1 is 1247 bp and encodes a protein of 272 amino acids. RT-PCR and real-time PCR analysis indicated that CaHO-1 was predominantly transcribed in posterior kidney, head kidney, gill and intestine, and induction of gene transcription was observed predominantly in posterior kidney under hypoxic stress. Moreover, the hypoxia-induced transcription was confirmed in goldfish larvae and in in vitro cultured CAB cells. Fluorescence of the HO-1-GFP fusion protein revealed a cytoplasmic and plasma membrane localization, which was consistent with the putative transmembrane structure. Subsequently, we established a stably transfected CAB/pcDNA3.1-HO-1 cell line and a control CAB/pcDNA3.1 cell line, and found that the number of dead cells was obviously reduced in the pcDNA3.1-HO-1-transfected group following 4 days of hypoxic (1% O-2) treatment in comparison with numerous detached dead cells in the control pcDNA3.1-transfected cells. Furthermore, a significant cell viability difference between the two kinds of transfected cells during hypoxia-reoxygenation was revealed. Therefore, the data suggest that fish HO-1 might play a significant protective role in cells in response to hypoxic stress.; Heme oxygenase-1 is the rate-limiting enzyme in the degradation of heme into biliverdin, carbon monoxide and free divalent iron. In this study, we cloned heme oxygenase isoform 1 (CaHO-1) from a hypoxia-tolerant teleost fish Carassius auratus. The full-length cDNA of CaHO-1 is 1247 bp and encodes a protein of 272 amino acids. RT-PCR and real-time PCR analysis indicated that CaHO-1 was predominantly transcribed in posterior kidney, head kidney, gill and intestine, and induction of gene transcription was observed predominantly in posterior kidney under hypoxic stress. Moreover, the hypoxia-induced transcription was confirmed in goldfish larvae and in in vitro cultured CAB cells. Fluorescence of the HO-1-GFP fusion protein revealed a cytoplasmic and plasma membrane localization, which was consistent with the putative transmembrane structure. Subsequently, we established a stably transfected CAB/pcDNA3.1-HO-1 cell line and a control CAB/pcDNA3.1 cell line, and found that the number of dead cells was obviously reduced in the pcDNA3.1-HO-1-transfected group following 4 days of hypoxic (1% O(2)) treatment in comparison with numerous detached dead cells in the control pcDNA3.1-transfected cells. Furthermore, a significant cell viability difference between the two kinds of transfected cells during hypoxia-reoxygenation was revealed. Therefore, the data suggest that fish HO-1 might play a significant protective role in cells in response to hypoxic stress.
SubtypeArticle
KeywordCarassius Auratus Heme Oxygenase-1 Hypoxia Inductive Transcription Subcellular Localization
Department[Wang, Dan; Zhong, Xue-Ping; Qiao, Zhi-Xian; Gui, Jian-Fang] Chinese Acad Sci, Grad Sch, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Subject AreaBiology
DOI10.1242/jeb.019141
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaLife Sciences & Biomedicine - Other Topics
WOS SubjectBiology
WOS IDWOS:000258297000020
WOS KeywordOXIDATIVE STRESS ; CARASSIUS-AURATUS ; GRASS CARP ; EXPRESSION ; CELLS ; DEGRADATION ; ARSENITE ; TISSUES ; VIRUS ; BRAIN
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8050
Collection期刊论文
Corresponding AuthorGui, JF, Chinese Acad Sci, Grad Sch, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Grad Sch, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Wang, Dan,Zhong, Xue-Ping,Qiao, Zhi-Xian,et al. Inductive transcription and protective role of fish heme oxygenase-1 under hypoxic stress[J]. JOURNAL OF EXPERIMENTAL BIOLOGY,2008,211(16):2700-2706.
APA Wang, Dan,Zhong, Xue-Ping,Qiao, Zhi-Xian,Gui, Jian-Fang,&Gui, JF, Chinese Acad Sci, Grad Sch, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2008).Inductive transcription and protective role of fish heme oxygenase-1 under hypoxic stress.JOURNAL OF EXPERIMENTAL BIOLOGY,211(16),2700-2706.
MLA Wang, Dan,et al."Inductive transcription and protective role of fish heme oxygenase-1 under hypoxic stress".JOURNAL OF EXPERIMENTAL BIOLOGY 211.16(2008):2700-2706.
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