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Qiao Y, Cui Y, Tan Y, Zhuang C, Li X, Yong Y, Zhang X, Ren X, Cai M, Yang J, Lang Y, Wang J, Liang C, Zhang J. Fluoride induces immunotoxicity by regulating riboflavin transport and metabolism partly through IL-17A in the spleen. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135085. [PMID: 38968825 DOI: 10.1016/j.jhazmat.2024.135085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024]
Abstract
The impairment of the immune system by fluoride is a public health concern worldwide, yet the underlying mechanism is unclear. Both riboflavin and IL-17A are closely related to immune function and regulate the testicular toxicity of fluoride. However, whether riboflavin or IL-17A is involved in fluoride-induced immunotoxicity is unknown. Here, we first established a male ICR mouse model by treating mice with sodium fluoride (NaF) (100 mg/L) via the drinking water for 91 days. The results showed that fluoride increased the expression of the proinflammatory factors IL-1β and IL-17A, which led to splenic inflammation and morphological injury. Moreover, the expression levels of the riboflavin transporters SLC52A2 and SLC52A3; the transformation-related enzymes RFK and FLAD1; and the key mitochondrial functional determinants SDH, COX, and ATP in the spleen were measured via real-time PCR, Western blotting, and ELISA. The results revealed that fluoride disrupted riboflavin transport, transformation, metabolism, and mitochondrial function. Furthermore, wild-type (WT) and IL-17A knockout (IL-17A-/-) C57BL/6 J male mice of the same age were treated with NaF (24 mg/kg·bw, equivalent to 100 mg/L) and/or riboflavin sodium phosphate (5 mg/kg·bw) via gavage for 91 days. Similar parameters were evaluated as above. The results confirmed that fluoride increased riboflavin metabolism through RFK but not through FLAD1. Fluoride also affected mitochondrial function and activated neutrophils (marked with Ly6g) and macrophages (marked with CD68) in the spleen. Interestingly, IL-17A partly mediated fluoride-induced riboflavin metabolism disorder and immunotoxicity in the spleen. This work not only reveals a novel toxic mechanism for fluoride but also provides new clues for exploring the physiological function of riboflavin and for diagnosing and treating the toxic effects of fluoride in the environment.
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Affiliation(s)
- Yurou Qiao
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Yukun Cui
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Yanjia Tan
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Cuicui Zhuang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Xiang Li
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Yufei Yong
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Xinying Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Xuting Ren
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Miaomiao Cai
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Jie Yang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Yilin Lang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Jundong Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Chen Liang
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Jianhai Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
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Roy PK, Paul A, Khandibharad S, Kolhe SD, Farooque QSS, Singh S, Singh S. Mechanistic and structural insights into vitamin B 2 metabolizing enzyme riboflavin kinase from Leishmania donovani. Int J Biol Macromol 2024; 278:134392. [PMID: 39098675 DOI: 10.1016/j.ijbiomac.2024.134392] [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: 03/14/2024] [Revised: 07/24/2024] [Accepted: 07/30/2024] [Indexed: 08/06/2024]
Abstract
Leishmania donovani relies on specific vitamins and cofactors crucial for its survival and pathogenesis. Tailoring therapies to disrupt these pathways offers a promising strategy for the treatment of Visceral Leishmaniasis. Current treatment regimens are limited due to drug resistance and high costs. The dependency of Leishmania parasites on Vitamin B2 and its metabolic products is not known. In this study, we have biochemically and biophysically characterized a Vitamin B2 metabolism enzyme, riboflavin kinase from L. donovani (LdRFK) which converts riboflavin (vitamin B2) into flavin mononucleotide (FMN). Sequence comparison with human counterpart reflects 31.58 % identity only, thus opening up the possibility of exploring it as drug target. The rfk gene was cloned, expressed and the recombinant protein was purified. Kinetic parameters of LdRFK were evaluated with riboflavin and ATP as substrates which showed differential binding affinity when compared with the human RFK enzyme. Thermal and denaturant stability of the enzyme was evaluated. The rfk gene was overexpressed in the parasites and its role in growth and cell cycle was evaluated. In the absence of crystal structure, homology modelling and molecular dynamic simulation studies were performed to predict LdRFK structure. The data shows differences in substrate binding between human and parasite enzyme. This raises the possibility of exploring LdRFK for specific designing of antileishmanial molecules. Gene disruption studies can further validate its candidature as antileishmanial target.
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Affiliation(s)
- Pradyot Kumar Roy
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, SAS Nagar, Mohali 160062, Punjab, India
| | - Anindita Paul
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, SAS Nagar, Mohali 160062, Punjab, India
| | - Shweta Khandibharad
- Biotechnology Research and Innovation Council- National Centre for Cell Science (BRIC-NCCS), NCCS Complex, Ganeshkhind, SP Pune University Campus, Pune 411007, India
| | - Sanket Dattatray Kolhe
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, SAS Nagar, Mohali 160062, Punjab, India
| | - Qureshi Sameer Shaikh Farooque
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, SAS Nagar, Mohali 160062, Punjab, India
| | - Shailza Singh
- Biotechnology Research and Innovation Council- National Centre for Cell Science (BRIC-NCCS), NCCS Complex, Ganeshkhind, SP Pune University Campus, Pune 411007, India
| | - Sushma Singh
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, SAS Nagar, Mohali 160062, Punjab, India.
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3
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Feng F, Hu P, Peng L, Xu L, Chen J, Chen Q, Zhang X, Tao X. Integrated network pharmacology and metabolomics to reveal the mechanism of Pinellia ternata inhibiting non-small cell lung cancer cells. BMC Complement Med Ther 2024; 24:263. [PMID: 38992647 PMCID: PMC11238457 DOI: 10.1186/s12906-024-04574-3] [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: 09/13/2023] [Accepted: 07/01/2024] [Indexed: 07/13/2024] Open
Abstract
Lung cancer is a malignant tumor with highly heterogeneous characteristics. A classic Chinese medicine, Pinellia ternata (PT), was shown to exert therapeutic effects on lung cancer cells. However, its chemical and pharmacological profiles are not yet understood. In the present study, we aimed to reveal the mechanism of PT in treating lung cancer cells through metabolomics and network pharmacology. Metabolomic analysis of two strains of lung cancer cells treated with Pinellia ternata extracts (PTE) was used to identify differentially abundant metabolites, and the metabolic pathways associated with the DEGs were identified by MetaboAnalyst. Then, network pharmacology was applied to identify potential targets against PTE-induced lung cancer cells. The integrated network of metabolomics and network pharmacology was constructed based on Cytoscape. PTE obviously inhibited the proliferation, migration and invasion of A549 and NCI-H460 cells. The results of the cellular metabolomics analysis showed that 30 metabolites were differentially expressed in the lung cancer cells of the experimental and control groups. Through pathway enrichment analysis, 5 metabolites were found to be involved in purine metabolism, riboflavin metabolism and the pentose phosphate pathway, including D-ribose 5-phosphate, xanthosine, 5-amino-4-imidazolecarboxyamide, flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). Combined with network pharmacology, 11 bioactive compounds were found in PT, and networks of bioactive compound-target gene-metabolic enzyme-metabolite interactions were constructed. In conclusion, this study revealed the complicated mechanisms of PT against lung cancer. Our work provides a novel paradigm for identifying the potential mechanisms underlying the pharmacological effects of natural compounds.
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Affiliation(s)
- Fan Feng
- School of Biological and Food Engineering, Suzhou University, Anhui, 234000, China
| | - Ping Hu
- School of Biological and Food Engineering, Suzhou University, Anhui, 234000, China
| | - Lei Peng
- School of Biological and Food Engineering, Suzhou University, Anhui, 234000, China
| | - Lisheng Xu
- School of Biological and Food Engineering, Suzhou University, Anhui, 234000, China
| | - Jun Chen
- School of Biological and Food Engineering, Suzhou University, Anhui, 234000, China
| | - Qiong Chen
- School of Biological and Food Engineering, Suzhou University, Anhui, 234000, China
| | - Xingtao Zhang
- School of Biological and Food Engineering, Suzhou University, Anhui, 234000, China
| | - Xingkui Tao
- School of Biological and Food Engineering, Suzhou University, Anhui, 234000, China.
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Nisco A, Tolomeo M, Scalise M, Zanier K, Barile M. Exploring the impact of flavin homeostasis on cancer cell metabolism. Biochim Biophys Acta Rev Cancer 2024; 1879:189149. [PMID: 38971209 DOI: 10.1016/j.bbcan.2024.189149] [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: 04/24/2024] [Revised: 06/25/2024] [Accepted: 07/01/2024] [Indexed: 07/08/2024]
Abstract
Flavins and their associated proteins have recently emerged as compelling players in the landscape of cancer biology. Flavins, encompassing flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), serve as coenzymes in a multitude of cellular processes, such as metabolism, apoptosis, and cell proliferation. Their involvement in oxidative phosphorylation, redox homeostasis, and enzymatic reactions has long been recognized. However, recent research has unveiled an extended role for flavins in the context of cancer. In parallel, riboflavin transporters (RFVTs), FAD synthase (FADS), and riboflavin kinase (RFK) have gained prominence in cancer research. These proteins, responsible for riboflavin uptake, FAD biosynthesis, and FMN generation, are integral components of the cellular machinery that governs flavin homeostasis. Dysregulation in the expression/function of these proteins has been associated with various cancers, underscoring their potential as diagnostic markers, therapeutic targets, and key determinants of cancer cell behavior. This review embarks on a comprehensive exploration of the multifaceted role of flavins and of the flavoproteins involved in nucleus-mitochondria crosstalk in cancer. We journey through the influence of flavins on cancer cell energetics, the modulation of RFVTs in malignant transformation, the diagnostic and prognostic significance of FADS, and the implications of RFK in drug resistance and apoptosis. This review also underscores the potential of these molecules and processes as targets for novel diagnostic and therapeutic strategies, offering new avenues for the battle against this relentless disease.
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Affiliation(s)
- Alessia Nisco
- Department of Biosciences, Biotechnologies, and Environment, University of Bari Aldo Moro, Italy
| | - Maria Tolomeo
- Department of Biosciences, Biotechnologies, and Environment, University of Bari Aldo Moro, Italy; Department of DiBEST (Biologia, Ecologia e Scienze della Terra), University of Calabria, Arcavacata di Rende, Italy
| | - Mariafrancesca Scalise
- Department of DiBEST (Biologia, Ecologia e Scienze della Terra), University of Calabria, Arcavacata di Rende, Italy
| | - Katia Zanier
- Biotechnology and Cell Signaling (CNRS/Université de Strasbourg, UMR 7242), Ecole Superieure de Biotechnologie de Strasbourg, Illkirch, France
| | - Maria Barile
- Department of Biosciences, Biotechnologies, and Environment, University of Bari Aldo Moro, Italy.
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Wen B, Deng DX, Liao LD, Zhang ZD, Zheng YQ, Dong K, Xu LY, Li EM. Co-Expression of Chromatin Assembly Factor 1 Subunit A and Proliferating Cell Nuclear Antigen Is a Prognostic Biomarker of Esophageal Cancer. Biomedicines 2023; 11:biomedicines11041184. [PMID: 37189802 DOI: 10.3390/biomedicines11041184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 05/17/2023] Open
Abstract
(1) Background: Esophageal cancer (EC) is an important global health challenge. Due to the lack of necessary biomarkers and therapeutic targets, the survival of EC patients is poor. The EC proteomic data of 124 patients recently published by our group provides a database for research in this field. (2) Methods: Bioinformatics analysis was used to identify DNA replication and repair-related proteins in EC. Proximity ligation assay, colony formation assay, DNA fiber assay, and flow cytometry were used to study the effects of related proteins on EC cells. Kaplan-Meier survival analysis was used to evaluate the relationship between gene expression and the survival time of EC patients. (3) Results: Chromatin assembly factor 1 subunit A (CHAF1A) was highly correlated with proliferating cell nuclear antigen (PCNA) expression in EC. CHAF1A and PCNA colocalized in the nucleus of EC cells. Compared with the knockdown of CHAF1A or PCNA alone, the double knockdown of CHAF1A and PCNA could significantly inhibit EC cell proliferation. Mechanistically, CHAF1A and PCNA synergistically accelerated DNA replication and promoted S-phase progression. EC patients with high expression of both CHAF1A and PCNA had a worse survival rate. (4) Conclusion: we identify CHAF1A and PCNA as key cell cycle-related proteins leading to the malignant progression of EC, and these proteins could serve as important prognostic biomarkers and targets for EC.
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Affiliation(s)
- Bing Wen
- The Key Laboratory of Molecular Biology for the High Cancer Incidence Coastal Chaoshan Area, Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, China
| | - Dan-Xia Deng
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, China
| | - Lian-Di Liao
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, China
| | - Zhi-Da Zhang
- The Key Laboratory of Molecular Biology for the High Cancer Incidence Coastal Chaoshan Area, Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, China
| | - Ya-Qi Zheng
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, China
| | - Ke Dong
- The Key Laboratory of Molecular Biology for the High Cancer Incidence Coastal Chaoshan Area, Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, China
| | - Li-Yan Xu
- The Key Laboratory of Molecular Biology for the High Cancer Incidence Coastal Chaoshan Area, Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, China
| | - En-Min Li
- The Key Laboratory of Molecular Biology for the High Cancer Incidence Coastal Chaoshan Area, Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, China
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6
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Larrea E, Fernández-Rubio C, Peña-Guerrero J, Guruceaga E, Nguewa PA. The BRCT Domain from the Homologue of the Oncogene PES1 in Leishmania major (LmjPES) Promotes Malignancy and Drug Resistance in Mammalian Cells. Int J Mol Sci 2022; 23:13203. [PMID: 36361992 PMCID: PMC9655562 DOI: 10.3390/ijms232113203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 07/30/2023] Open
Abstract
Around 15% of cancer cases are attributable to infectious agents. Epidemiological studies suggest that an association between leishmaniasis and cancer does exist. Recently, the homologue of PES1 in Leishmania major (LmjPES) was described to be involved in parasite infectivity. Mammalian PES1 protein has been implicated in cellular processes like cell cycle regulation. Its BRCT domain has been identified as a key factor in DNA damage-responsive checkpoints. This work aimed to elucidate the hypothetical oncogenic implication of BRCT domain from LmjPES in host cells. We generated a lentivirus carrying this BRCT domain sequence (lentiBRCT) and a lentivirus expressing the luciferase protein (lentiLuc), as control. Then, HEK293T and NIH/3T3 mammalian cells were infected with these lentiviruses. We observed that the expression of BRCT domain from LmjPES conferred to mammal cells in vitro a greater replication rate and higher survival. In in vivo experiments, we observed faster tumor growth in mice inoculated with lentiBRCT respect to lentiLuc HEK293T infected cells. Moreover, the lentiBRCT infected cells were less sensitive to the genotoxic drugs. Accordingly, gene expression profiling analysis revealed that BRCT domain from LmjPES protein altered the expression of proliferation- (DTX3L, CPA4, BHLHE41, BMP2, DHRS2, S100A1 and PARP9), survival- (BMP2 and CARD9) and chemoresistance-related genes (DPYD, Dok3, DTX3L, PARP9 and DHRS2). Altogether, our results reinforced the idea that in eukaryotes, horizontal gene transfer might be also achieved by parasitism like Leishmania infection driving therefore to some crucial biological changes such as proliferation and drug resistance.
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Affiliation(s)
- Esther Larrea
- ISTUN Institute of Tropical Health, IdiSNA (Navarra Institute for Health Research), University of Navarra, 31009 Pamplona, Navarra, Spain
| | - Celia Fernández-Rubio
- ISTUN Institute of Tropical Health, IdiSNA (Navarra Institute for Health Research), University of Navarra, 31009 Pamplona, Navarra, Spain
- ISTUN Institute of Tropical Health, Department of Microbiology and Parasitology, IdiSNA (Navarra Institute for Health Research), University of Navarra, 31009 Pamplona, Navarra, Spain
| | - José Peña-Guerrero
- ISTUN Institute of Tropical Health, IdiSNA (Navarra Institute for Health Research), University of Navarra, 31009 Pamplona, Navarra, Spain
- ISTUN Institute of Tropical Health, Department of Microbiology and Parasitology, IdiSNA (Navarra Institute for Health Research), University of Navarra, 31009 Pamplona, Navarra, Spain
| | - Elizabeth Guruceaga
- Bioinformatics Platform, Center for Applied Medical Research, IdiSNA (Navarra Institute for Health Research), University of Navarra, 31009 Pamplona, Navarra, Spain
| | - Paul A. Nguewa
- ISTUN Institute of Tropical Health, IdiSNA (Navarra Institute for Health Research), University of Navarra, 31009 Pamplona, Navarra, Spain
- ISTUN Institute of Tropical Health, Department of Microbiology and Parasitology, IdiSNA (Navarra Institute for Health Research), University of Navarra, 31009 Pamplona, Navarra, Spain
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Interactions between EGFR and EphA2 promote tumorigenesis through the action of Ephexin1. Cell Death Dis 2022; 13:528. [PMID: 35668076 PMCID: PMC9170705 DOI: 10.1038/s41419-022-04984-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 02/07/2023]
Abstract
The cell signaling factors EGFR, EphA2, and Ephexin1 are associated with lung and colorectal cancer and play an important role in tumorigenesis. Although the respective functional roles of EGFR and EphA2 are well known, interactions between these proteins and a functional role for the complex is not understood. Here, we showed that Ephexin1, EphA2, and EGFR are each expressed at higher levels in lung and colorectal cancer patient tissues, and binding of EGFR to EphA2 was associated with both increased tumor grade and metastatic cases in both cancer types. Treatment with Epidermal Growth Factor (EGF) induced binding of the RR domain of EGFR to the kinase domain of EphA2, and this binding was promoted by Ephexin1. Additionally, the AKT-mediated phosphorylation of EphA2 (at Ser897) promoted interactions with EGFR, pointing to the importance of this pathway. Two mutations in EGFR, L858R and T790M, that are frequently observed in lung cancer patients, promoted binding to EphA2, and this binding was dependent on Ephexin1. Our results indicate that the formation of a complex between EGFR, EphA2, and Ephexin1 plays an important role in lung and colorectal cancers, and that inhibition of this complex may be an effective target for cancer therapy.
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Zhang LT, Ke LX, Wu XY, Tian HT, Deng HZ, Xu LY, Li EM, Long L. TRIP13 Induces Nedaplatin Resistance in Esophageal Squamous Cell Carcinoma by Enhancing Repair of DNA Damage and Inhibiting Apoptosis. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7295458. [PMID: 35601150 PMCID: PMC9115607 DOI: 10.1155/2022/7295458] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 03/14/2022] [Accepted: 03/28/2022] [Indexed: 02/05/2023]
Abstract
Thyroid hormone receptor interactor 13 (TRIP13) plays a crucial role in poor prognosis and chemotherapy resistance of cancer patients. This present study is aimed at investigating the role of high expression of TRIP13 inducing nedaplatin (NDP) resistance in esophageal squamous cell carcinoma (ESCC) cells. High expression of TRIP13 promoted the proliferation and migration of ESCC cells performed by MTS assay, colony formation assay, wound healing assay, and transwell assay. High TRIP13 expression induced NDP resistance to ESCC based on the cell proliferation promoting/inhibition rate and cell migration promoting/inhibition rate analysis, flow cytometry assay of apoptotic subpopulations with a combination of Annexin V-FITC and propidium iodide, and Western blot analysis downregulating cleaved PARP, γH2A.X, cleaved caspase-3, and Bax and upregulating Bcl-2 expression. This study indicated that high expression of TRIP13 promoted proliferation and migration of ESCC cells and induced NDP resistance via enhancing repair of DNA damage and inhibiting apoptosis. This will provide a preliminary reference for the clinical use of NDP in ESCC treatment.
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Affiliation(s)
- Lin-Ting Zhang
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
| | - Li-Xin Ke
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
| | - Xin-Yi Wu
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
| | - Hui-Ting Tian
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
| | - Hua-Zhen Deng
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
| | - Li-Yan Xu
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- Institute of Basic Medical Science, Cancer Research Center, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
| | - En-Min Li
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
| | - Lin Long
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- Institute of Basic Medical Science, Cancer Research Center, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular Immunopathology, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041 Guangdong Province, China
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9
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Long L, Pang XX, Zeng FM, Zhan XH, Xie YH, Pan F, Wang W, Liao LD, Xu XE, Li B, Wang LD, Chang ZJ, Li EM, Xu LY. Promotion of rs3746804 (p. L267P) polymorphism to intracellular SLC52A3a trafficking and riboflavin transportation in esophageal cancer cells. Amino Acids 2021; 53:1197-1209. [PMID: 34223992 DOI: 10.1007/s00726-021-03025-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 06/21/2021] [Indexed: 02/05/2023]
Abstract
Riboflavin is an essential micronutrient for normal cellular growth and function. Lack of dietary riboflavin is associated with an increased risk for esophageal squamous cell carcinoma (ESCC). Previous studies have identified that the human riboflavin transporter SLC52A3a isoform (encoded by SLC52A3) plays a prominent role in esophageal cancer cell riboflavin transportation. Furthermore, SLC52A3 gene single nucleotide polymorphisms rs3746804 (T>C, L267P) and rs3746803 (C >T, T278M) are associated with ESCC risk. However, whether SLC52A3a (p.L267P) and (p.T278M) act in riboflavin transportation in esophageal cancer cell remains inconclusive. Here, we constructed the full-length SLC52A3a protein fused to green fluorescent protein (GFP-SLC52A3a-WT and mutants L267P, T278M, and L267P/T278M). It was confirmed by immunofluorescence-based confocal microscopy that SLC52A3a-WT, L267P, T278M, and L267P/T278M expressed in cell membrane, as well as in a variety of intracellular punctate structures. The live cell confocal imaging showed that SLC52A3a-L267P and L267P/T278M increased the intracellular trafficking of SLC52A3a in ESCC cells. Fluorescence recovery after photobleaching of GFP-tagged SLC52A3a meant that intracellular trafficking of SLC52A3a-L267P and L267P/T278M was rapid dynamics process, leading to its stronger ability to transport riboflavin. Taken together, the above results indicated that the rs3746804 (p.L267P) polymorphism promoted intracellular trafficking of SLC52A3a and riboflavin transportation in ESCC cells.
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Affiliation(s)
- Lin Long
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China
| | - Xiao-Xiao Pang
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China
- Department of Pathology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510000, Guangdong, China
| | - Fa-Min Zeng
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China
| | - Xiu-Hui Zhan
- Research Center of Translational Medicine, Department of Spine Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Ying-Hua Xie
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China
| | - Feng Pan
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China
| | - Wei Wang
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China
| | - Lian-Di Liao
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China
| | - Xiu-E Xu
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China
| | - Bin Li
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun, China
| | - Li-Dong Wang
- Henan Key Laboratory for Cancer Research, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhi-Jie Chang
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, China
| | - En-Min Li
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China.
| | - Li-Yan Xu
- Institute of Oncologic Pathology, Department of Biochemistry and Molecular Biology, Shantou University Medical College, 22 Xinling Road, Shantou, 515041, Guangdong, China.
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Current understanding of CREPT and p15RS, carboxy-terminal domain (CTD)-interacting proteins, in human cancers. Oncogene 2020; 40:705-716. [PMID: 33239754 DOI: 10.1038/s41388-020-01544-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 10/21/2020] [Accepted: 10/28/2020] [Indexed: 12/27/2022]
Abstract
CREPT and p15RS, also named RPRD1B and RPRD1A, are RPRD (regulation of nuclear pre-mRNA-domain-containing) proteins containing C-terminal domain (CTD)-interacting domain (CID), which mediates the binding to the CTD of Rpb1, the largest subunit of RNA polymerase II (RNAPII). CREPT and p15RS are highly conserved, with a common yeast orthologue Rtt103. Intriguingly, human CREPT and p15RS possess opposite functions in the regulation of cell proliferation and tumorigenesis. While p15RS inhibits cell proliferation, CREPT promotes cell cycle and tumor growth. Aberrant expression of both CREPT and p15RS was found in numerous types of cancers. At the molecular level, both CREPT and p15RS were reported to regulate gene transcription by interacting with RNAPII. However, CREPT also exerts a key function in the processes linked to DNA damage repairs. In this review, we summarized the recent studies regarding the biological roles of CREPT and p15RS, as well as the molecular mechanisms underlying their activities. Fully revealing the mechanisms of CREPT and p15RS functions will not only provide new insights into understanding gene transcription and maintenance of DNA stability in tumors, but also promote new approach development for tumor diagnosis and therapy.
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Pan F, Xu X, Zhang LL, Luo HJ, Chen Y, Long L, Wang X, Zhuang PT, Li EM, Xu LY. Dietary riboflavin deficiency induces genomic instability of esophageal squamous cells that is associated with gut microbiota dysbiosis in rats. Food Funct 2020; 11:10070-10083. [PMID: 33135706 DOI: 10.1039/d0fo01944e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
SCOPE Epidemiologic evidence suggests that riboflavin (RBF) deficiency is a specific nutritional predisposition for esophageal cancer. The aim of this study is to investigate the potential roles of gut microbiota in esophageal tumorigenesis caused by the RBF deficiency. METHODS Male F344 rats were subcutaneously injected with the chemical carcinogen N-nitrosomethylbenzylamine (NMBA, 0.35 mg kg-1). Rats were assigned to 4 groups, denoted as R6 (normal RBF, 6 mg kg-1), R6N (normal RBF combined with NMBA), R6N → R0N (normal RBF conversion to RBF-deficiency), and R0N → R6N (RBF-deficiency conversion to normal RBF). Bacterial communities were analyzed based on high-throughput 16S rRNA gene sequencing. Oxidative DNA damage and double-strand break markers were studied by immunohistochemistry. RESULTS The R6N → R0N diet enhanced the incidence of esophageal intraepithelial neoplasia (EIN, 40 weeks 66.7% vs. 25 weeks 16.7%, P < 0.05). RBF deficiency and replenishment modulated the gut microbiota composition. The gut microbiota (e.g. Caulobacteraceae, Sphingomonas and Bradyrhizobium) affected xenobiotic biodegradation and the genomic instability of the host. Furthermore, the RBF deficiency aggravated oxidative DNA damage and DNA double-strand breaks (immunohistochemistry) in the esophageal epithelium, whereas the RBF replenishment had the opposite effect (P < 0.05, respectively). CONCLUSIONS RBF deficiency promotes NMBA-induced esophageal tumorigenesis, which is associated with gut microbiota-associated genomic instability, and offers new insights into the role of RBF deficiency in esophageal carcinogenesis.
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Affiliation(s)
- Feng Pan
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, China.
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12
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Ma S, Wang F, Zhang C, Wang X, Wang X, Yu Z. Cell metabolomics to study the function mechanism of Cyperus rotundus L. on triple-negative breast cancer cells. BMC Complement Med Ther 2020; 20:262. [PMID: 32843016 PMCID: PMC7449030 DOI: 10.1186/s12906-020-02981-w] [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: 12/31/2019] [Accepted: 06/01/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) is a kind of malignant tumor with higher recurrence and metastasis rate. According to historical records, the dry rhizomes Cyperus rotundus L. could be ground into powder and mixed with ginger juice and wine for external application for breast cancer. We studied the effect of the ethanol extract of Cyperus rotundus L. (EECR) on TNBC cells and found its' apoptosis-inducing effect with a dose-relationship. But the function mechanism of EECR on TNBC is still mysterious. Hence, the present research aimed to detect its function mechanism at the small molecule level through ultra-high performance liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS) metabolomics. METHODS The CCK-8 assay and the Annexin V-FITC/PI assay were applied to test the effect of EECR on MDA-MB-231 cells and MDA-MB 468 cells at various concentrations of 0, 200, 400, and 600 μg/ml. UPLC-Q-TOF-MS/MS based metabolomics was used between the control group and the EECR treatment groups. Multivariate statistical analysis was used to visualize the apoptosis-inducing action of EECR and filtrate significantly changed metabolites. RESULTS The apoptosis-inducing action was confirmed and forty-nine significantly changed metabolites (VIP > 1, p < 0.05, and FC > 1.2 or FC < 0.8) were identified after the interference of EECR. The level of significant differential metabolites between control group, middle dose group, and high dose group were compared and found that which supported the apoptosis-inducing action with dose-dependence. CONCLUSION By means of metabolism, we have detected the mechanism of EECR inducing apoptosis of TNBC cells at the level of small molecule metabolites and found that EECR impacted the energy metabolism of TNBC cells. In addition, we concluded that EECR induced apoptosis by breaking the balance between ATP-production and ATP-consumption: arresting the pathways of Carbohydrate metabolism such as Central carbon metabolism in cancer, aerobic glycolysis, and Amino sugar and nucleotide sugar metabolism, whereas accelerating the pathways of ATP-consumption including Amino Acids metabolism, Fatty acid metabolism, Riboflavin metabolism and Purine metabolism. Although further study is still needed, EECR has great potential in the clinical treatment of TNBC with fewer toxic and side effects.
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Affiliation(s)
- Shuangshuang Ma
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No.440 jiyan road, Jinan, 250017, Shandong, China
- Shandong Hongjitang Pharmaceutical Group Co.,Ltd., Jinan, 250000, China
| | - Fukai Wang
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No.440 jiyan road, Jinan, 250017, Shandong, China
| | - Caijuan Zhang
- School of life Science, Beijing University of Chinese Medicine, Northeast corner of intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing, 102488, China
| | - Xinzhao Wang
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No.440 jiyan road, Jinan, 250017, Shandong, China
| | - Xueyong Wang
- School of Chinese Materia Medical, Beijing University of Chinese Medicine, No.11 North 3rd Ring East Road, Chao-Yang District, Beijing, 100029, China.
| | - Zhiyong Yu
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, No.440 jiyan road, Jinan, 250017, Shandong, China.
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13
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Pan F, Luo HJ, Wu ZY, Chen SZ, Wang X, Yu SX, Wang JM, Lin SY, Cai ZY, Gao YL, Zhuang PT, Xu LY, Li EM. Decreased plasma riboflavin is associated with poor prognosis, invasion, and metastasis in esophageal squamous cell carcinoma. Eur J Clin Nutr 2020; 74:1149-1156. [PMID: 32060383 DOI: 10.1038/s41430-020-0585-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 02/01/2020] [Accepted: 02/04/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Riboflavin deficiency confers a predisposition for esophageal cancer. The role of plasma riboflavin levels in development and prognosis of individuals with digestive tract inflammation and ulcer (DTIU), digestive tract polyps (DTPs), and ESCC is not well understood. METHODS We performed a cross-sectional study, including 177 DTIU, 80 DTP, and 324 ESCC cases, to measure the plasma riboflavin levels among the three populations. Correlation between plasma riboflavin levels (categorized as ≥31.8, 6.5-31.8 and ≤6.5 nmol/L groups) and clinical characteristics, as well as survival of ESCC patients (556 cases) was analyzed. RESULTS There was no difference in plasma riboflavin levels between DTIU, DTP, and ESCC cases (P > 0.05). Plasma riboflavin levels were inversely correlated with invasive depth (correlation coefficient = -0.09, P = 0.026) and lymph node metastasis (correlation coefficient = -0.11, P = 0.010) of ESCC, and ESCC patients with low riboflavin levels had poor recurrence-free survival (P = 0.035) and overall survival (P = 0.003). Decreased riboflavin was a prognostic factor for poor overall survival (HR = 1.91, 95% CI = 1.19-3.07, P = 0.007). CONCLUSIONS Plasma riboflavin levels in DTIU, DTP, and ESCC patients are similar. Plasma riboflavin levels are associated with the development and prognosis of ESCC.
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Affiliation(s)
- Feng Pan
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China
| | - Hong-Jun Luo
- Central Laboratory, Shantou University Medical College, Shantou, 515041, China
| | - Zhi-Yong Wu
- Department of Tumor Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, 515031, China
| | - Su-Zuan Chen
- Department of Gastroenterology, The First Affiliated Hospital, Shantou University Medical College, Shantou, 515041, China
| | - Xuan Wang
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China
| | - Shuai-Xia Yu
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China
| | - Jia-Min Wang
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China
| | - Shu-Yuan Lin
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China
| | - Ze-Ying Cai
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China
| | - Yu-Lin Gao
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China
| | - Pei-Tong Zhuang
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China
| | - Li-Yan Xu
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China.
- Institute of Oncologic Pathology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China.
| | - En-Min Li
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China.
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, No. 22, Xinling Road, Shantou, 515041, China.
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14
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Szczuko M, Ziętek M, Kulpa D, Seidler T. Riboflavin - properties, occurrence and its use in medicine. Pteridines 2019. [DOI: 10.1515/pteridines-2019-0004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Abstract
Riboflavin is built on an isoalloxazin ring, which contains three sixcarbon rings: benzoic, pyrazine and pyrimidine. Riboflavin is synthesized by some bacteria, but among humans and animals, the only source of flavin coenzymes (FAD, FMN) is exogenous riboflavin. Riboflavin transport in enterocytes takes place via three translocators encoded by the SLC52 gene. Deficiency of dietary riboflavin has wide ranging implications for the efficacy of other vitamins, the mechanism of cellular respiration, lactic acid metabolism, hemoglobin, nucleotides and amino acid synthesis. In studies it was found that, pharmacologic daily doses (100 mg) have the potential to react with light, which can have adverse cellular effects. Extrene caution should be exercised when using riboflavin as phototherapy in premature newborns. At the cellular level, riboflavin deficiency leads to increased oxidative stress and causes disorders in the glutathione recycling process. Risk factors for developing riboflavin deficinecy include pregnancy, malnutrition (including anorexia and other eating disorders, vegitarianism, veganism and alcoholism. Furthermore, elderly people and atheletes are also at risk of developing this deficiency. Widespread use of riboflavin in medicine, cancer therapy, treatment of neurodegenerative diseases, corneal ectasia and viral infections has resulted in the recent increased interest in this flavina.
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Affiliation(s)
- Małgorzata Szczuko
- Department of Biochemistry and Human Nutrition , Pomeranian Medical University in Szczecin , Poland
| | - Maciej Ziętek
- Clinic of Perinatology, Obstetrics and Gynecology Pomeranian Medical University in Szczecin , Poland
| | - Danuta Kulpa
- Department of Genetics, Plant Breeding and Biotechnology , West Pomeranian University of Technology in Szczecin , Poland
| | - Teresa Seidler
- Department of Human Nutrition , West Pomeranian University of Technology in Szczecin , Poland
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Pan F, Chen Y, He JZ, Long L, Chen Y, Luo HJ, Xu YW, Pang XX, Yang Q, Wang JJ, Xu XE, Wang SH, Li EM, Xu LY. Dietary riboflavin deficiency promotes N-nitrosomethylbenzylamine-induced esophageal tumorigenesis in rats by inducing chronic inflammation. Am J Cancer Res 2019; 9:2469-2481. [PMID: 31815047 PMCID: PMC6895446 DOI: pmid/31815047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 10/18/2019] [Indexed: 02/05/2023] Open
Abstract
Epidemiological studies in high-incidence areas of esophageal cancer in China suggest that environmental carcinogen N-nitrosomethylbenzylamine (NMBA) and riboflavin (RBF) deficiency may be the main risk factors for esophageal cancer. However, it is not clear that the combination induces cancer. Here, experiment (Exp) 1 evaluated the effects of NMBA and RBF deficiency individually or in combination on esophageal tumorigenesis. Male F344 rats were randomly assigned to 4 groups into a 2 (no NMBA vs. NMBA) × 2 (normal RBF vs. RBF-deficient) factorial design, including normal RBF (6 mg/kg, R6), RBF-deficient (0 mg/kg, R0), normal RBF combined with NMBA (R6N), and RBF-deficient combined with NMBA (R0N) groups. The Exp 2 explored the effects of RBF deficiency at different doses combined with NMBA (0.6 mg/kg, R0.6N; 0.06 mg/kg, R0.06N) on esophageal tumorigenesis. Results showed that R0N enhanced the incidence of esophageal intraepithelial neoplasia (EIN, 53.3%, P = 0.06), including carcinoma in situ, whereas R6N mainly induced the occurrence of esophageal benign hyperplasia (38.9%) and EIN (16.7%). RBF deficiency promotes EIN in a dose-dependent manner, and R0.06N significantly increases the incidence of EIN (57.9%, P < 0.05). Gene expression profiling demonstrated that inflammatory cytokines were highly expressed in R0N EIN tissues, whereas R6N EIN tissues had a proliferation and differentiation gene signature (fold-change > 1.5). Furthermore, RBF deficiency aggravated oxidative DNA damage (8-OHdG) and double-strand breaks (γH2AX) (P < 0.05). Our results suggest that RBF deficiency causes chronic inflammation-associated genomic instability contributes to NMBA-induced esophageal tumorigenesis.
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Affiliation(s)
- Feng Pan
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Ye Chen
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Institute of Oncologic Pathology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Jian-Zhong He
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Institute of Oncologic Pathology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Lin Long
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Yang Chen
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Hong-Jun Luo
- Bioanalytical Laboratory, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Yi-Wei Xu
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Department of Clinical Laboratory Medicine, The Cancer Hospital of Shantou University Medical CollegeShantou 515041, Guangdong, China
| | - Xiao-Xiao Pang
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Institute of Oncologic Pathology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Qian Yang
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Institute of Oncologic Pathology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Juan-Juan Wang
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Institute of Oncologic Pathology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Xiu-E Xu
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Institute of Oncologic Pathology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Shao-Hong Wang
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen UniversityShantou 515041, Guangdong, China
| | - En-Min Li
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Department of Biochemistry and Molecular Biology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
| | - Li-Yan Xu
- Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Medical College of Shantou UniversityShantou 515041, Guangdong, China
- Institute of Oncologic Pathology, Medical College of Shantou UniversityShantou 515041, Guangdong, China
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