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Takeda M, Takei H, Suzuki M, Tsukui T, Tsuboi K, Watayo H, Ochi T, Koga H, Nittono H, Yamataka A. Bile acid profiles in adult patients with biliary atresia who achieve native liver survival after portoenterostomy. Sci Rep 2024; 14:2492. [PMID: 38291117 PMCID: PMC10827714 DOI: 10.1038/s41598-024-52969-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/25/2024] [Indexed: 02/01/2024] Open
Abstract
Bile acids have received increasing attention as a marker of the long-term prognosis and a potential therapeutic target in patients with biliary atresia, which is a progressive disease of the hepatobiliary system. A detailed analysis of serum and urinary bile acid compositions was conducted to assess the characteristics of bile acid profiles and the correlation between bile acid profiles and liver fibrosis markers in adult patients with biliary atresia who achieved bilirubin normalization. Serum total bile acids and glucuronide-conjugated (glyco- and tauro-) cholic acids (GCA and TCA) and chenodeoxycholic acids (GCDCA and TCDCA) were significantly higher in patients with biliary atresia than in healthy controls, whereas unconjugated CA and CDCA showed no significant difference. There were no significant differences in CA to CDCA ratios and glycine-to-taurine-conjugated ratios. Urinary glycocholic acid 3-sulfate (GCA-3S) was significantly higher in patients with biliary atresia. Serum GCDCA showed a strong positive correlation with Mac-2 binding protein glycosylation isomer (M2BPGi). These results demonstrate that bile acid congestion persists into adulthood in patients with biliary atresia, even after cholestasis has completely improved after Kasai portoenterostomy. These fundamental data on bile acid profiles also suggest the potential value of investigating bile acid profiles in patients with biliary atresia.
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Affiliation(s)
- Masahiro Takeda
- Department of Pediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Hajime Takei
- Junshin Clinic Bile Acid Institute, Tokyo, Japan
| | - Mitsuyoshi Suzuki
- Department of Pediatrics, Juntendo University School of Medicine, Tokyo, Japan
| | - Takafumi Tsukui
- Department of Pediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Koichi Tsuboi
- Department of Pediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hiroko Watayo
- Department of Pediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Takanori Ochi
- Department of Pediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hiroyuki Koga
- Department of Pediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | | | - Atsuyuki Yamataka
- Department of Pediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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2
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Rossignol G, Muller X, Brunet TA, Bidault V, Hervieu V, Clement Y, Ayciriex S, Mabrut JY, Salvador A, Mohkam K. Comprehensive bile acid pool analysis during ex-vivo liver perfusion in a porcine model of ischemia-reperfusion injury. Sci Rep 2024; 14:2384. [PMID: 38286808 PMCID: PMC10824768 DOI: 10.1038/s41598-024-52504-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/19/2024] [Indexed: 01/31/2024] Open
Abstract
Bile acids (BA) are key for liver regeneration and injury. This study aims at analyzing the changes in the BA pool induced by ischemia-reperfusion (IRI) and investigates the impact of hypothermic oxygenated perfusion (HOPE) on the BA pool compared to static cold storage (SCS). In a porcine model of IRI, liver grafts underwent 30 min of asystolic warm ischemia followed by 6 h of SCS (n = 6) ± 2 h of HOPE (n = 6) and 2 h of ex-situ warm reperfusion. The BA pool in bile samples was analyzed with liquid chromatography coupled with tandem mass spectrometry. We identified 16 BA and observed significant changes in response to ischemia-reperfusion, which were associated with both protective and injury mechanisms. Second, HOPE-treated liver grafts exhibited a more protective BA phenotype, characterized by a more hydrophilic BA pool compared to SCS. Key BA, such as GlycoCholic Acid, were identified and were associated with a decreased transaminase release and improved lactate clearance during reperfusion. Partial Least Square-Discriminant Analysis revealed a distinct injury profile for the HOPE group. In conclusion, the BA pool changes with liver graft IRI, and preservation with HOPE results in a protective BA phenotype compared to SCS.
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Affiliation(s)
- Guillaume Rossignol
- Department of General Surgery and Liver Transplantation, Croix Rousse University Hospital, Lyon, France.
- Department of Pediatric Surgery and Liver Transplantation, Femme Mere Enfant University Hospital, Lyon, France.
- The Cancer Research Center of Lyon, INSERM U1052, Lyon, France.
- ED 340 BMIC, Claude Bernard Lyon 1 University, Villeurbanne, France.
- Institute of Analytical Sciences, CNRS UMR 5280, Claude Bernard University Lyon 1, Villeurbanne, France.
| | - Xavier Muller
- Department of General Surgery and Liver Transplantation, Croix Rousse University Hospital, Lyon, France.
- The Cancer Research Center of Lyon, INSERM U1052, Lyon, France.
- ED 340 BMIC, Claude Bernard Lyon 1 University, Villeurbanne, France.
| | - Thomas Alexandre Brunet
- Institute of Analytical Sciences, CNRS UMR 5280, Claude Bernard University Lyon 1, Villeurbanne, France
| | - Valeska Bidault
- Department of Pediatric Surgery and Liver Transplantation, Femme Mere Enfant University Hospital, Lyon, France
| | - Valerie Hervieu
- Department of Pathology, Hospices Civils de Lyon, Claude Bernard Lyon 1 University, Villeurbanne, Lyon, France
| | - Yohann Clement
- Institute of Analytical Sciences, CNRS UMR 5280, Claude Bernard University Lyon 1, Villeurbanne, France
| | - Sophie Ayciriex
- Institute of Analytical Sciences, CNRS UMR 5280, Claude Bernard University Lyon 1, Villeurbanne, France
| | - Jean-Yves Mabrut
- Department of General Surgery and Liver Transplantation, Croix Rousse University Hospital, Lyon, France
- The Cancer Research Center of Lyon, INSERM U1052, Lyon, France
| | - Arnaud Salvador
- Institute of Analytical Sciences, CNRS UMR 5280, Claude Bernard University Lyon 1, Villeurbanne, France
| | - Kayvan Mohkam
- Department of General Surgery and Liver Transplantation, Croix Rousse University Hospital, Lyon, France
- Department of Pediatric Surgery and Liver Transplantation, Femme Mere Enfant University Hospital, Lyon, France
- The Cancer Research Center of Lyon, INSERM U1052, Lyon, France
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3
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Kautiainen R, Aleksonis H, King TZ. A Systematic Review of Host Genomic Variation and Neuropsychological Outcomes for Pediatric Cancer Survivors. Neuropsychol Rev 2023; 33:278-306. [PMID: 35305234 DOI: 10.1007/s11065-022-09539-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 01/25/2022] [Indexed: 10/18/2022]
Abstract
Pediatric survivors of brain tumors and acute lymphoblastic leukemia (ALL) are at risk for long-term deficits in their neuropsychological functioning. Researchers have begun examining associations between germline single nucleotide polymorphisms (SNPs), which interact with cancer treatment, and neuropsychological outcomes. This review synthesizes the impact of treatment-related toxicity from germline SNPs by neuropsychological domain (i.e., working memory, processing speed, psychological functioning) in pediatric survivors. By focusing on specific neuropsychological domains, this review will examine outcome measurement and critique methodology. Fourteen studies were identified and included in this review using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). All studies were published in peer-reviewed journals in English by November 24th, 2021. Reviewed studies were not of sufficient quality for a meta-analysis due to varying measurement strategies, gaps in reported descriptive variables, and low power. All neuropsychological domains evaluated in this review had associations with SNPs, except fine motor and visual integration abilities. Only five SNPs had consistent neuropsychological findings in more than one study or cohort. Future research and replication studies should use validated measures of discrete skills that are central to empirically validated models of survivors' long-term outcomes (i.e., attention, working memory, processing speed). Researchers should examine SNPs across pathophysiological pathways to investigate additive genetic risk in pediatric cancer survivors. Two SNPs were identified that confer resiliency in neuropsychological functioning, and future work should investigate resiliency genotypes and their underlying biological mechanisms.
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Affiliation(s)
- Rella Kautiainen
- Department of Psychology, Georgia State University, Atlanta, Georgia
| | - Holly Aleksonis
- Department of Psychology, Georgia State University, Atlanta, Georgia
| | - Tricia Z King
- Department of Psychology and the Neuroscience Institute, Georgia State University, Atlanta, Georgia.
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4
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Liao C, Wang D, Qin S, Zhang Y, Chen J, Xu R, Xu F, Zhang P. Inflammatory-Dependent Bidirectional Effect of Bile Acids on NLRP3 Inflammasome and Its Role in Ameliorating CPT-11-Induced Colitis. Front Pharmacol 2022; 13:677738. [PMID: 35712724 PMCID: PMC9193974 DOI: 10.3389/fphar.2022.677738] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/12/2022] [Indexed: 12/08/2022] Open
Abstract
Irinotecan (CPT-11) in combination with 5-fluorouracil and leucovorin is a first-line chemotherapy regimen for the treatment of colorectal cancer; however, its clinical application is limited by the dose-limiting gastrointestinal toxicity of colitis. In our previous studies, several bile acids (BAs) were found significantly elevated in the colon of the CPT-11-induced rat colitis model. On the other hand, NLRP3 inflammasome has been reported to play important roles in mediating colitis. Interestingly, BA was stated to activate the NLRP3 inflammasome in some studies, while in some other reports, it showed an inhibitory effect. We assumed that the inflammatory status in different circumstances might have contributed to the controversial findings. In this study, we first discovered, under non-inflammatory conditions, that supplementing BA could activate the NLRP3 inflammasome in THP-1-differentiated macrophages and promote inflammation. In lipopolysaccharide (LPS)-induced inflammatory macrophages, however, BA inhibited the NLRP3 inflammasome and reduced inflammation. Further experiments demonstrated that Takeda G protein-coupled receptor 5 (TGR5) is essential in mediating the inhibitory effect of BA, while phospho-SP1 (p-SP1) is key to the activation. Furthermore, we applied the above findings to ameliorate CPT-11-caused colitis in rats by inhibiting SP1 with mithramycin A (MitA) or activating TGR5 using oleanolic acid (OA). Our findings may shed light on the discovery of effective interventions for reducing dose-limiting chemotherapy-induced colitis.
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Affiliation(s)
- Chuyao Liao
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing, China
| | - Di Wang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing, China
| | - Siyuan Qin
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing, China
| | - Ying Zhang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing, China
| | - Jie Chen
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing, China
| | - Ruijie Xu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing, China
| | - Fengguo Xu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing, China
| | - Pei Zhang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing, China
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5
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Mitochondrial Ferritin: Its Role in Physiological and Pathological Conditions. Cells 2021; 10:cells10081969. [PMID: 34440737 PMCID: PMC8393899 DOI: 10.3390/cells10081969] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/27/2021] [Accepted: 07/30/2021] [Indexed: 12/16/2022] Open
Abstract
In 2001, a new type of human ferritin was identified by searching for homologous sequences to H-ferritin in the human genome. After the demonstration that this ferritin is located specifically in the mitochondrion, it was called mitochondrial ferritin. Studies on the properties of this new type of ferritin have been limited by its very high homology with the cytosolic H-ferritin, which is expressed at higher levels in cells. This great similarity made it difficult to obtain specific antibodies against the mitochondrial ferritin devoid of cross-reactivity with cytosolic ferritin. Thus, the knowledge of the physiological role of mitochondrial ferritin is still incomplete despite 20 years of research. In this review, we summarize the literature on mitochondrial ferritin expression regulation and its physical and biochemical properties, with particular attention paid to the differences with cytosolic ferritin and its role in physiological condition. Until now, there has been no evidence that the alteration of the mitochondrial ferritin gene is causative of any disorder; however, the identified association of the mitochondrial ferritin with some disorders is discussed.
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6
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He L, Vatsalya V, Ma X, Zhang J, Yin X, Kim S, Feng W, McClain CJ, Zhang X. Metabolic Profiling of Bile Acids in the Urine of Patients with Alcohol-Associated Liver Disease. Hepatol Commun 2021; 5:798-811. [PMID: 34027270 PMCID: PMC8122376 DOI: 10.1002/hep4.1671] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/02/2020] [Accepted: 12/17/2020] [Indexed: 12/19/2022] Open
Abstract
Bile acids (BAs) play important functions in the development of alcohol-associated liver disease (ALD). In the current study, urine BA concentrations in 38 patients with well-described alcohol-associated hepatitis (AH) as characterized by Model for End-Stage Liver Disease (MELD), 8 patients with alcohol-use disorder (AUD), and 19 healthy controls (HCs) were analyzed using liquid chromatography-mass spectrometry. Forty-three BAs were identified, and 22 BAs had significant changes in their abundance levels in patients with AH. The potential associations of clinical data were compared to candidate BAs in this pilot proof-of-concept study. MELD score showed positive correlations with several conjugated BAs and negative correlations with certain unconjugated BAs; taurine-conjugated chenodeoxycholic acid (CDCA) and MELD score showed the highest association. Cholic acid, CDCA, and apocholic acid had nonsignificant abundance changes in patients with nonsevere ALD compared to HCs but were significantly increased in those with severe AH. Receiver operating characteristic analysis showed that the differences in these three compounds were sufficiently large to distinguish severe AH from nonsevere ALD. Notably, the abundance levels of primary BAs were significantly increased while most of the secondary BAs were markedly decreased in AH compared to AUD. Most importantly, the amount of total BAs and the ratio of primary to secondary BAs increased while the ratio of unconjugated to conjugated BAs decreased as disease severity increased. Conclusion: Abundance changes of specific BAs are closely correlated with the severity of AH in this pilot study. Urine BAs (individually or as a group) could be potential noninvasive laboratory biomarkers for detecting early stage ALD and may have prognostic value in AH morbidity.
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Affiliation(s)
- Liqing He
- Department of ChemistryUniversity of LouisvilleLouisvilleKYUSA.,Alcohol Research CenterUniversity of LouisvilleLouisvilleKYUSA.,Hepatobiology and Toxicology ProgramUniversity of LouisvilleLouisvilleKYUSA.,Center for Regulatory and Environmental Analytical MetabolomicsUniversity of LouisvilleLouisvilleKYUSA
| | - Vatsalya Vatsalya
- Alcohol Research CenterUniversity of LouisvilleLouisvilleKYUSA.,Department of MedicineUniversity of LouisvilleLouisvilleKYUSA.,Robley Rex Louisville Veterans Affairs Medical CenterLouisvilleKYUSA
| | - Xipeng Ma
- Department of ChemistryUniversity of LouisvilleLouisvilleKYUSA.,Alcohol Research CenterUniversity of LouisvilleLouisvilleKYUSA.,Hepatobiology and Toxicology ProgramUniversity of LouisvilleLouisvilleKYUSA.,Center for Regulatory and Environmental Analytical MetabolomicsUniversity of LouisvilleLouisvilleKYUSA
| | - Jiayang Zhang
- School of DentistryUniversity of LouisvilleLouisvilleKYUSA
| | - Xinmin Yin
- Department of ChemistryUniversity of LouisvilleLouisvilleKYUSA.,Center for Regulatory and Environmental Analytical MetabolomicsUniversity of LouisvilleLouisvilleKYUSA
| | - Seongho Kim
- Department of OncologyUniversity of LouisvilleLouisvilleKYUSA.,Biostatistics Core, Karmanos Cancer InstituteWayne State UniversityDetroitMIUSA
| | - Wenke Feng
- Alcohol Research CenterUniversity of LouisvilleLouisvilleKYUSA.,Hepatobiology and Toxicology ProgramUniversity of LouisvilleLouisvilleKYUSA.,Department of MedicineUniversity of LouisvilleLouisvilleKYUSA.,Department of Pharmacology and ToxicologyUniversity of LouisvilleLouisvilleKYUSA
| | - Craig J McClain
- Alcohol Research CenterUniversity of LouisvilleLouisvilleKYUSA.,Hepatobiology and Toxicology ProgramUniversity of LouisvilleLouisvilleKYUSA.,Department of MedicineUniversity of LouisvilleLouisvilleKYUSA.,Robley Rex Louisville Veterans Affairs Medical CenterLouisvilleKYUSA.,Biostatistics Core, Karmanos Cancer InstituteWayne State UniversityDetroitMIUSA
| | - Xiang Zhang
- Department of ChemistryUniversity of LouisvilleLouisvilleKYUSA.,Alcohol Research CenterUniversity of LouisvilleLouisvilleKYUSA.,Hepatobiology and Toxicology ProgramUniversity of LouisvilleLouisvilleKYUSA.,Center for Regulatory and Environmental Analytical MetabolomicsUniversity of LouisvilleLouisvilleKYUSA.,Department of Pharmacology and ToxicologyUniversity of LouisvilleLouisvilleKYUSA
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7
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Lee HJ, Park JH, Oh SY, Cho DH, Kim S, Jo I. Zearalenone-Induced Interaction between PXR and Sp1 Increases Binding of Sp1 to a Promoter Site of the eNOS, Decreasing Its Transcription and NO Production in BAECs. Toxins (Basel) 2020; 12:toxins12060421. [PMID: 32630586 PMCID: PMC7354576 DOI: 10.3390/toxins12060421] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 11/16/2022] Open
Abstract
Zearalenone (ZEN) is a non-steroidal mycotoxin that has various toxicological impacts on mammalian health. Here, we found that ZEN significantly affected the production of nitric oxide (NO) and the expression of endothelial NO synthase (eNOS) of bovine aortic endothelial cells (BAECs). A promoter analysis using 5′-serially deleted human eNOS promoter revealed that the proximal region (−135 to +22) was responsible for ZEN-mediated reduction of the human eNOS promoter activity. This effect was reversed by mutation of two specificity protein 1 (Sp1) binding elements in the human eNOS promoter. A chromatin immunoprecipitation assay revealed that ZEN increased Sp1 binding to the bovine eNOS promoter region (−113 to −12), which is homologous to −135 to +22 of the human eNOS promoter region. We also found that ZEN promoted the binding of the pregnane X receptor (PXR) to Sp1 of the bovine eNOS, consequently decreasing eNOS expression. This reduction of eNOS could have contributed to the decreased acetylcholine-induced vessel relaxation upon ZEN treatment in our ex vivo study using mouse aortas. In conclusion, our data demonstrate that ZEN decreases eNOS expression by enhancing the binding of PXR-Sp1 to the eNOS promoter, thereby decreasing NO production and potentially causing vessel dysfunction.
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Affiliation(s)
- Hyeon-Ju Lee
- Department of Molecular Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Korea; (H.-J.L.); (J.-H.P.); (S.-Y.O.)
| | - Jung-Hyun Park
- Department of Molecular Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Korea; (H.-J.L.); (J.-H.P.); (S.-Y.O.)
| | - Se-Young Oh
- Department of Molecular Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Korea; (H.-J.L.); (J.-H.P.); (S.-Y.O.)
| | - Du-Hyong Cho
- Department of Pharmacology, College of Medicine, Yeungnam University, 170 Hyunchung-ro, Nam-gu, Daegu 42415, Korea; (D.-H.C.); (S.K.)
| | - Suji Kim
- Department of Pharmacology, College of Medicine, Yeungnam University, 170 Hyunchung-ro, Nam-gu, Daegu 42415, Korea; (D.-H.C.); (S.K.)
| | - Inho Jo
- Department of Molecular Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Korea; (H.-J.L.); (J.-H.P.); (S.-Y.O.)
- Correspondence: ; Tel.: 82-2-6986-6267
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8
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Ferrín G, Guerrero M, Amado V, Rodríguez-Perálvarez M, De la Mata M. Activation of mTOR Signaling Pathway in Hepatocellular Carcinoma. Int J Mol Sci 2020; 21:ijms21041266. [PMID: 32070029 PMCID: PMC7072933 DOI: 10.3390/ijms21041266] [Citation(s) in RCA: 203] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 12/17/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most frequent primary liver cancer and occurs mainly in patients with liver cirrhosis. The mammalian target of rapamycin (mTOR) signaling pathway is involved in many hallmarks of cancer including cell growth, metabolism re-programming, proliferation and inhibition of apoptosis. The mTOR pathway is upregulated in HCC tissue samples as compared with the surrounding liver cirrhotic tissue. In addition, the activation of mTOR is more intense in the tumor edge, thus reinforcing its role in HCC proliferation and spreading. The inhibition of the mTOR pathway by currently available pharmacological compounds (i.e., sirolimus or everolimus) is able to hamper tumor progression both in vitro and in animal models. The use of mTOR inhibitors alone or in combination with other therapies is a very attractive approach, which has been extensively investigated in humans. However, results are contradictory and there is no solid evidence suggesting a true benefit in clinical practice. As a result, neither sirolimus nor everolimus are currently approved to treat HCC or to prevent tumor recurrence after curative surgery. In the present comprehensive review, we analyzed the most recent scientific evidence while providing some insights to understand the gap between experimental and clinical studies.
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Affiliation(s)
- Gustavo Ferrín
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba, 14004 Córdoba, Spain; (G.F.); (M.G.); (V.A.); (M.D.l.M.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 14004 Córdoba, Spain
| | - Marta Guerrero
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba, 14004 Córdoba, Spain; (G.F.); (M.G.); (V.A.); (M.D.l.M.)
- Department of Hepatology and Liver Transplantaton, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
| | - Víctor Amado
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba, 14004 Córdoba, Spain; (G.F.); (M.G.); (V.A.); (M.D.l.M.)
- Department of Hepatology and Liver Transplantaton, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
| | - Manuel Rodríguez-Perálvarez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba, 14004 Córdoba, Spain; (G.F.); (M.G.); (V.A.); (M.D.l.M.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 14004 Córdoba, Spain
- Department of Hepatology and Liver Transplantaton, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
- Correspondence: ; Tel.: +34-617854692
| | - Manuel De la Mata
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba, 14004 Córdoba, Spain; (G.F.); (M.G.); (V.A.); (M.D.l.M.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 14004 Córdoba, Spain
- Department of Hepatology and Liver Transplantaton, Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
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9
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Chhunchha B, Kubo E, Singh P, Singh DP. Sumoylation-deficient Prdx6 repairs aberrant Sumoylation-mediated Sp1 dysregulation-dependent Prdx6 repression and cell injury in aging and oxidative stress. Aging (Albany NY) 2018; 10:2284-2315. [PMID: 30215601 PMCID: PMC6188488 DOI: 10.18632/aging.101547] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/06/2018] [Indexed: 12/16/2022]
Abstract
Progressive deterioration of antioxidant response in aging is a major culprit in the initiation of age-related pathobiology induced by oxidative stress. We previously reported that oxidative stress leads to a marked reduction in transcription factor Sp1 and its mediated Prdx6 expression in lens epithelial cells (LECs) leading to cell death. Herein, we examined how Sp1 activity goes awry during oxidative stress/aging, and whether it is remediable. We found that Sp1 is hyper-Sumoylated at lysine (K) 16 residue in aging LECs. DNA binding and promoter assays revealed, in aging and oxidative stress, a significant reduction in Sp1 overall binding, and specifically to Prdx6 promoter. Expression/overexpression assay revealed that the observed reduction in Sp1-DNA binding activity was connected to its hyper-Sumoylation due to increased reactive oxygen species (ROS) and Sumo1 levels, and reduced levels of Senp1, Prdx6 and Sp1. Mutagenesis of Sp1 at K16R (arginine) residue restored steady-state, and improved Sp1-DNA binding activity and transactivation potential. Extrinsic expression of Sp1K16R increased cell survival and reduced ROS levels by upregulating Prdx6 expression in LECs under aging/oxidative stress, demonstrating that Sp1K16R escapes the aberrant Sumoylation processes. Intriguingly, the deleterious processes are reversible by the delivery of Sumoylation-deficient Prdx6, an antioxidant, which would be a candidate molecule to restrict aging pathobiology.
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Affiliation(s)
- Bhavana Chhunchha
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center,
Omaha, NE 68198, USA
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Prerna Singh
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center,
Omaha, NE 68198, USA
| | - Dhirendra P. Singh
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center,
Omaha, NE 68198, USA
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10
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Yu H, Zhang X, Liu R, Li H, Xiao X, Zhou Y, Wei C, Yang M, Liao M, Zhao J, Xia Z, Liao Q. Mcl-1 suppresses abasic site repair following bile acid-induced hepatic cellular DNA damage. Tumour Biol 2017; 39:1010428317712102. [PMID: 28681695 DOI: 10.1177/1010428317712102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
In cholestasis, increases in bile acid levels result in the generation of reactive oxygen species and the induction of DNA damage and mutation. It is believed that bile acid accumulation is associated with liver tumorigenesis. However, the mechanism that underpins this phenomenon remains to be elucidated. Mcl-1, which is overexpressed in hepatic cells, is a pro-survival member of the Bcl-2 family. In this study, we observed that Mcl-1 potently suppresses the repair of bile acid-induced abasic (apurinic/apyrimidinic) sites in DNA lesions. Upon exposure of hepatic cells to glycochenodeoxycholate, one of the major conjugated human bile acids, we observed an increase in AP site accumulation along with induction of poly(ADP-ribose) polymerase and XRCC1 ( X-Ray Repair Cross Complementing 1). In addition, accumulation of Mcl-1 was observed in the nuclei of QGY-7703 cells in response to glycochenodeoxycholate stimulation. Knockdown of endogenous Mcl-1 by RNA interference significantly accelerated the repair of DNA lesions in glycochenodeoxycholate-treated cells. However, unlike XRCC1, poly(ADP-ribose) polymerase was induced following Mcl-1 knockdown. Conversely, poly(ADP-ribose) polymerase suppression was observed following glycochenodeoxycholate treatment of cells overexpressing Mcl-1. Moreover, AP-site counting analyses revealed that DNA repair activity was enhanced in cells overexpressing poly(ADP-ribose) polymerase under glycochenodeoxycholate stress conditions. It is well known that poly(ADP-ribose) polymerase plays a crucial role in the base excision repair pathway. Thus, our findings suggest that Mcl-1 suppresses base excision repair by inhibiting poly(ADP-ribose) polymerase induction following glycochenodeoxycholate-induced DNA damage. These results potentially explain how bile acid accumulation results in genetic instability and carcinogenesis.
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Affiliation(s)
- Haiyang Yu
- 1 Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Xiaoqing Zhang
- 2 The Fifth Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Ren Liu
- 3 Merck Research Laboratory, Kenilworth, NJ, USA
| | - Hui Li
- 4 State Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, P.R. China
| | - Xiaolong Xiao
- 4 State Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, P.R. China
| | - Yuzheng Zhou
- 4 State Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, P.R. China
| | - Chaoying Wei
- 4 State Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, P.R. China
| | - Manyi Yang
- 1 Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Mingmei Liao
- 1 Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Jinfeng Zhao
- 1 Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Zanxian Xia
- 4 State Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, P.R. China
| | - Qiande Liao
- 1 Xiangya Hospital, Central South University, Changsha, P.R. China
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Guaraldo M, Santambrogio P, Rovelli E, Di Savino A, Saglio G, Cittaro D, Roetto A, Levi S. Characterization of human mitochondrial ferritin promoter: identification of transcription factors and evidences of epigenetic control. Sci Rep 2016; 6:33432. [PMID: 27625068 PMCID: PMC5022048 DOI: 10.1038/srep33432] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 08/02/2016] [Indexed: 02/07/2023] Open
Abstract
Mitochondrial ferritin (FtMt) is an iron storage protein belonging to the ferritin family but, unlike the cytosolic ferritin, it has an iron-unrelated restricted tissue expression. FtMt appears to be preferentially expressed in cell types characterized by high metabolic activity and oxygen consumption, suggesting a role in protecting mitochondria from iron-dependent oxidative damage. The human gene (FTMT) is intronless and its promoter region has not been described yet. To analyze the regulatory mechanisms controlling FTMT expression, we characterized the 5' flanking region upstream the transcriptional starting site of FTMT by in silico enquiry of sequences conservation, DNA deletion analysis, and ChIP assay. The data revealed a minimal promoter region and identified the presence of SP1, CREB and YY1 as positive regulators, and GATA2, FoxA1 and C/EBPβ as inhibitors of the transcriptional regulation. Furthermore, the FTMT transcription is increased by acetylating and de-methylating agent treatments in K562 and HeLa cells. These treatments up-regulate FtMt expression even in fibroblasts derived from a Friedreich ataxia patient, where it might exert a beneficial effect against mitochondrial oxidative damage. The expression of FTMT appears regulated by a complex mechanism involving epigenetic events and interplay between transcription factors.
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Affiliation(s)
- Michela Guaraldo
- San Raffaele Scientific Institute, Division of Neuroscience, 20132 Milano, Italy
| | - Paolo Santambrogio
- San Raffaele Scientific Institute, Division of Neuroscience, 20132 Milano, Italy
| | - Elisabetta Rovelli
- San Raffaele Scientific Institute, Division of Neuroscience, 20132 Milano, Italy
| | - Augusta Di Savino
- University of Torino, Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, 10043 Orbassano, Torino, Italy
| | - Giuseppe Saglio
- University of Torino, Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, 10043 Orbassano, Torino, Italy
| | - Davide Cittaro
- San Raffaele Scientific Institute, Center for Translational Genomics and Bioinformatics, 20132 Milano, Italy
| | - Antonella Roetto
- University of Torino, Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, 10043 Orbassano, Torino, Italy
| | - Sonia Levi
- San Raffaele Scientific Institute, Division of Neuroscience, 20132 Milano, Italy
- University Vita-Salute San Raffaele, 20132 Milano, Italy
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12
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AP-1 Inhibition by SR 11302 Protects Human Hepatoma HepG2 Cells from Bile Acid-Induced Cytotoxicity by Restoring the NOS-3 Expression. PLoS One 2016; 11:e0160525. [PMID: 27490694 PMCID: PMC4973998 DOI: 10.1371/journal.pone.0160525] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 07/20/2016] [Indexed: 12/27/2022] Open
Abstract
The harmful effects of bile acid accumulation occurring during cholestatic liver diseases have been associated with oxidative stress increase and endothelial nitric oxide synthase (NOS-3) expression decrease in liver cells. We have previously reported that glycochenodeoxycholic acid (GCDCA) down-regulates gene expression by increasing SP1 binding to the NOS-3 promoter in an oxidative stress dependent manner. In the present study, we aimed to investigate the role of transcription factor (TF) AP-1 on the NOS-3 deregulation during GCDCA-induced cholestasis. The cytotoxic response to GCDCA was characterized by 1) the increased expression and activation of TFs cJun and c-Fos; 2) a higher binding capability of these at position -666 of the NOS-3 promoter; 3) a decrease of the transcriptional activity of the promoter and the expression and activity of NOS-3; and 4) the expression increase of cyclin D1. Specific inhibition of AP-1 by the retinoid SR 11302 counteracted the cytotoxic effects induced by GCDCA while promoting NOS-3 expression recovery and cyclin D1 reduction. NOS activity inhibition by L-NAME inhibited the protective effect of SR 11302. Inducible NOS isoform was no detected in this experimental model of cholestasis. Our data provide direct evidence for the involvement of AP-1 in the NOS-3 expression regulation during cholestasis and define a critical role for NOS-3 in regulating the expression of cyclin D1 during the cell damage induced by bile acids. AP-1 appears as a potential therapeutic target in cholestatic liver diseases given its role as a transcriptional repressor of NOS-3.
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Zhang R, Feng X, Zhan M, Huang C, Chen K, Tang X, Kang T, Xiong Y, Lei M. Transcription Factor Sp1 Promotes the Expression of Porcine ROCK1 Gene. Int J Mol Sci 2016; 17:ijms17010112. [PMID: 26784181 PMCID: PMC4730353 DOI: 10.3390/ijms17010112] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 11/27/2015] [Accepted: 12/10/2015] [Indexed: 12/11/2022] Open
Abstract
Rho-associated, coiled-coil containing protein kinase 1 (ROCK1) gene plays a crucial role in maintaining genomic stability, tumorigenesis and myogenesis. However, little is known about the regulatory elements governing the transcription of porcine ROCK1 gene. In the current study, the transcription start site (TSS) was identified by 5'-RACE, and was found to differ from the predicted one. The region in ROCK1 promoter which is critical for promoter activity was investigated via progressive deletions. Site-directed mutagenesis indicated that the region from -604 to -554 bp contains responsive elements for Sp1. Subsequent experiments showed that ROCK1 promoter activity is enhanced by Sp1 in a dose-dependent manner, whereas treatment with specific siRNA repressed ROCK1 promoter activity. Electrophoretic mobility shift assay (EMSA), DNA pull down and chromatin immunoprecipitation (ChIP) assays revealed Sp1 can bind to this region. qRT-PCR and Western blotting research followed by overexpression or inhibition of Sp1 indicate that Sp1 can affect endogenous ROCK1 expression at both mRNA and protein levels. Overexpression of Sp1 can promote the expression of myogenic differentiation 1(MyoD), myogenin (MyoG), myosin heavy chain (MyHC). Taken together, we conclude that Sp1 positively regulates ROCK1 transcription by directly binding to the ROCK1 promoter region (from -604 to -532 bp) and may affect the process of myogenesis.
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Affiliation(s)
- Ruirui Zhang
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaoting Feng
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
- College of Life Science and Technology, Wuhan Bioengineering Institute, Wuhan 430070, China.
| | - Mengsi Zhan
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Cong Huang
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Kun Chen
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaoyin Tang
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Tingting Kang
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yuanzhu Xiong
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Minggang Lei
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry & Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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