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Zeng X, Du S, Geng L, Ma J. Nc-RNA-mediated low expression of AZIN1 correlated with unfavorable prognosis in kidney renal clear cell carcinoma. Cancer Med 2024; 13:e70105. [PMID: 39140420 PMCID: PMC11322861 DOI: 10.1002/cam4.70105] [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: 01/17/2024] [Revised: 06/19/2024] [Accepted: 08/04/2024] [Indexed: 08/15/2024] Open
Abstract
OBJECTIVE Kidney renal clear cell carcinoma (KIRC, ccRCC) is the most common type of renal cancer with high recurrence and mortality. It has long been recognized that Antizyme inhibitor 1 (AZIN1) serves as a pro-oncogenic molecule in multiple cancers. However, the clinicopathological features of AZIN1 in KIRC remain unexplored. MATERIALS AND METHODS The Cancer Genome Atlas (TCGA, TIMER, and GEPIA) were employed for pan-cancer expression and survival analysis of AZIN1, indicating the unique anti-tumor role of AZIN1 in KIRC. The expression and clinical characteristics of AZIN1 in KIRC were further proven via Human Protein Atlas and TCGA. single-sample GSEA was employed to investigate the immune infiltration of AZIN1. Then the downstream pathways were illustrated via the LinkedOmics, Metascape, and Cytoscape databases. The possible upper regulating noncoding RNAs (ncRNAs) were analyzed from five programs-TargetScan, StarBase, miRanda, PITA, and miRmap. RESULTS AZIN1 is downregulated in KIRC patients. Lower levels of AZIN1 were linked with unfavorable outcomes in KIRC patients. The AZIN1 expression was positively related to immune cell infiltration in KIRC. We also elucidated a possible upstream regulatory ncRNA of AZIN1 in KIRC namely STK4-AS1/AC068338.2-miR-106b-5p-AZIN1 axis as well as the downstream signaling pathways. CONCLUSION This study illustrated the unique anti-tumor role of AZIN1 in KIRC and provided potential value for guiding immunotherapy and targeted therapy.
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Affiliation(s)
- Xinyi Zeng
- Department of HematologyHuadong Hospital Affiliated with Fudan UniversityShanghaiChina
| | - Shen Du
- Department of Nuclear Medicine, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Lou Geng
- Department of Hematology, Institute of Hematology, Shanghai Changhai HospitalNaval Medical UniversityShanghaiChina
| | - Jiexian Ma
- Department of HematologyHuadong Hospital Affiliated with Fudan UniversityShanghaiChina
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Liu H, Tian X, Wen J, Liu J, Huo Y, Yuan K, Guo J, Wang X, Yang M, Jiang A, Cao Q, Jiang J. Ame-miR-1-3p of bee venom reduced cell viability through the AZIN1/OAZ1-ODC1-polyamines pathway and enhanced the defense ability of honeybee (Apis mellifera L.). INSECT MOLECULAR BIOLOGY 2024; 33:312-322. [PMID: 38767730 DOI: 10.1111/imb.12899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 01/08/2024] [Indexed: 05/22/2024]
Abstract
Bee venom serves as an essential defensive weapon for bees and also finds application as a medicinal drug. MicroRNAs (miRNAs) serve as critical regulators and have been demonstrated to perform a variety of biological functions. However, the presence of miRNAs in bee venom needs to be confirmed. Therefore, we conducted small RNA sequencing and identified 158 known miRNAs, 15 conserved miRNAs and 4 novel miRNAs. It is noteworthy that ame-miR-1-3p, the most abundant among them, accounted for over a quarter of all miRNA reads. To validate the function of ame-miR-1-3p, we screened 28 candidate target genes using transcriptome sequencing and three target gene prediction software (miRanda, PITA and TargetScan) for ame-miR-1-3p. Subsequently, we employed real-time quantitative reverse transcription PCR (qRT-PCR), Western blot and other technologies to confirm that ame-miR-1-3p inhibits the relative expression of antizyme inhibitor 1 (AZIN1) by targeting the 3' untranslated region (UTR) of AZIN1. This, in turn, caused ODC antizyme 1 (OAZ1) to bind to ornithine decarboxylase 1 (ODC1) and mark ODC1 for proteolytic destruction. The reduction in functional ODC1 ultimately resulted in a decrease in polyamine biosynthesis. Furthermore, we determined that ame-miR-1-3p accelerates cell death through the AZIN1/OAZ1-ODC1-polyamines pathway. Our studies demonstrate that ame-miR-1-3p diminishes cell viability and it may collaborate with sPLA2 to enhance the defence capabilities of honeybees (Apis mellifera L.). Collectively, these data further elucidate the defence mechanism of bee venom and expand the potential applications of bee venom in medical treatment.
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Affiliation(s)
- Haifeng Liu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Xue Tian
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jie Wen
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jie Liu
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yunfei Huo
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Kangqi Yuan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jiazhong Guo
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Xun Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Mingxian Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Anan Jiang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Quanquan Cao
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jun Jiang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
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Bachmann AS, VanSickle EA, Michael J, Vipond M, Bupp CP. Bachmann-Bupp syndrome and treatment. Dev Med Child Neurol 2024; 66:445-455. [PMID: 37469105 PMCID: PMC10796844 DOI: 10.1111/dmcn.15687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 07/21/2023]
Abstract
Bachmann-Bupp syndrome (BABS) is a neurodevelopmental disorder characterized by developmental delay, hypotonia, and varying forms of non-congenital alopecia. The condition is caused by 3'-end mutations of the ornithine decarboxylase 1 (ODC1) gene, which produce carboxy (C)-terminally truncated variants of ODC, a pyridoxal 5'-phosphate-dependent enzyme. C-terminal truncation of ODC prevents its ubiquitin-independent proteasomal degradation and leads to cellular accumulation of ODC enzyme that remains catalytically active. ODC is the first rate-limiting enzyme that converts ornithine to putrescine in the polyamine pathway. Polyamines (putrescine, spermidine, spermine) are aliphatic molecules found in all forms of life and are important during embryogenesis, organogenesis, and tumorigenesis. BABS is an ultra-rare condition with few reported cases, but it serves as a convincing example for drug repurposing therapy. α-Difluoromethylornithine (DFMO, also known as eflornithine) is an ODC inhibitor with a strong safety profile in pediatric use for neuroblastoma and other cancers as well as West African sleeping sickness (trypanosomiasis). Patients with BABS have been treated with DFMO and have shown improvement in hair growth, muscle tone, and development.
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Affiliation(s)
- André S Bachmann
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI, USA
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
| | - Elizabeth A VanSickle
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
- Corewell Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
| | - Julianne Michael
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
- Corewell Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
| | - Marlie Vipond
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
- Corewell Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
| | - Caleb P Bupp
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI, USA
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
- Corewell Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
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4
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Feng Q, Wang H, Shao Y, Xu X. Antizyme inhibitor family: biological and translational research implications. Cell Commun Signal 2024; 22:11. [PMID: 38169396 PMCID: PMC10762828 DOI: 10.1186/s12964-023-01445-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024] Open
Abstract
Metabolism of polyamines is of critical importance to physiological processes. Ornithine decarboxylase (ODC) antizyme inhibitors (AZINs) are capable of interacting with antizymes (AZs), thereby releasing ODC from ODC-AZs complex, and promote polyamine biosynthesis. AZINs regulate reproduction, embryonic development, fibrogenesis and tumorigenesis through polyamine and other signaling pathways. Dysregulation of AZINs has involved in multiple human diseases, especially malignant tumors. Adenosine-to-inosine (A-to-I) RNA editing is the most common type of post-transcriptional nucleotide modification in humans. Additionally, the high frequencies of RNA-edited AZIN1 in human cancers correlates with increase of cancer cell proliferation, enhancement of cancer cell stemness, and promotion of tumor angiogenesis. In this review, we summarize the current knowledge on the various contribution of AZINs related with potential cancer promotion, cancer stemness, microenvironment and RNA modification, especially underlying molecular mechanisms, and furthermore explored its promising implication for cancer diagnosis and treatment.
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Affiliation(s)
- Qiaohui Feng
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, Liaoning, 110001, PR China
| | - Huijie Wang
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, PR China
| | - Youcheng Shao
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, PR China
| | - Xiaoyan Xu
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, PR China.
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Yin K, Cui G, Bi X, Liang M, Hu Z, Deng YZ. Intracellular polyamines regulate redox homeostasis with cAMP-PKA signalling during sexual mating/filamentation and pathogenicity of Sporisorium scitamineum. MOLECULAR PLANT PATHOLOGY 2024; 25:e13393. [PMID: 37814404 PMCID: PMC10782646 DOI: 10.1111/mpp.13393] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 09/17/2023] [Indexed: 10/11/2023]
Abstract
Sugarcane smut caused by Sporisorium scitamineum seriously impairs sugarcane production and quality. Sexual mating/filamentation is a critical step of S. scitamineum pathogenesis, yet the regulatory mechanisms are not fully understood. In this study, we identified the SsAGA, SsODC, and SsSAMDC genes, which are involved in polyamine biosynthesis in S. scitamineum. Deletion of SsODC led to complete loss of filamentous growth after sexual mating, and deletion of SsAGA or SsSAMDC caused reduced filamentation. Double deletion of SsODC and SsSAMDC resulted in auxotrophy for putrescine (PUT) and spermidine (SPD) when grown on minimal medium (MM), indicating that these two genes encode enzymes that are critical for PUT and SPD biosynthesis. We further showed that low PUT concentrations promoted S. scitamineum filamentation, while high PUT concentrations suppressed filamentation. Disrupted fungal polyamine biosynthesis also resulted in a loss of pathogenicity and reduced fungal biomass within infected plants at the early infection stage. SPD formed a gradient from the diseased part to nonsymptom parts of the cane stem, suggesting that SPD is probably favourable for fungal virulence. Mutants of the cAMP-PKA (SsGPA3-SsUAC1-SsADR1) signalling pathway displayed up-regulation of the SsODC gene and elevated intracellular levels of PUT. SsODC directly interacted with SsGPA3, and sporidia of the ss1uac1ΔodcΔ mutant displayed abundant pseudohyphae. Furthermore, we found that elevated PUT levels caused accumulation of intracellular reactive oxygen species (ROS), probably by suppressing transcription of ROS-scavenging enzymes, while SPD played the opposite role. Overall, our work proves that polyamines play important roles in the pathogenic development of sugarcane smut fungus, probably by collaboratively regulating intracellular redox homeostasis with the cAMP-PKA signalling pathway.
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Affiliation(s)
- Kai Yin
- Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, College of Plant ProtectionSouth China Agricultural UniversityGuangzhouChina
- Integrative Microbiology Research Centre, Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural UniversityGuangzhouChina
| | - Guobing Cui
- Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, College of Plant ProtectionSouth China Agricultural UniversityGuangzhouChina
- Integrative Microbiology Research Centre, Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural UniversityGuangzhouChina
| | - Xinping Bi
- Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, College of Plant ProtectionSouth China Agricultural UniversityGuangzhouChina
- Integrative Microbiology Research Centre, Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural UniversityGuangzhouChina
| | - Meiling Liang
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant ProtectionResearch Institute of Guangdong Academy of Agricultural SciencesGuangzhouChina
| | - Zhijian Hu
- Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, College of Plant ProtectionSouth China Agricultural UniversityGuangzhouChina
- Integrative Microbiology Research Centre, Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural UniversityGuangzhouChina
| | - Yi Zhen Deng
- Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, College of Plant ProtectionSouth China Agricultural UniversityGuangzhouChina
- Integrative Microbiology Research Centre, Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural UniversityGuangzhouChina
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Li D, Neo SP, Gunaratne J, Sabapathy K. EPLIN-β is a novel substrate of ornithine decarboxylase antizyme 1 and mediates cellular migration. J Cell Sci 2023; 136:jcs260427. [PMID: 37325974 PMCID: PMC10281260 DOI: 10.1242/jcs.260427] [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: 07/15/2022] [Accepted: 05/04/2023] [Indexed: 06/17/2023] Open
Abstract
Polyamines promote cellular proliferation. Their levels are controlled by ornithine decarboxylase antizyme 1 (Az1, encoded by OAZ1), through the proteasome-mediated, ubiquitin-independent degradation of ornithine decarboxylase (ODC), the rate-limiting enzyme of polyamine biosynthesis. Az1-mediated degradation of other substrates such as cyclin D1 (CCND1), DNp73 (TP73) or Mps1 regulates cell growth and centrosome amplification, and the currently known six Az1 substrates are all linked with tumorigenesis. To understand whether Az1-mediated protein degradation might play a role in regulating other cellular processes associated with tumorigenesis, we employed quantitative proteomics to identify novel Az1 substrates. Here, we describe the identification of LIM domain and actin-binding protein 1 (LIMA1), also known as epithelial protein lost in neoplasm (EPLIN), as a new Az1 target. Interestingly, between the two EPLIN isoforms (α and β), only EPLIN-β is a substrate of Az1. The interaction between EPLIN-β and Az1 appears to be indirect, and EPLIN-β is degraded by Az1 in a ubiquitination-independent manner. Az1 absence leads to elevated EPLIN-β levels, causing enhanced cellular migration. Consistently, higher LIMA1 levels correlate with poorer overall survival of colorectal cancer patients. Overall, this study identifies EPLIN-β as a novel Az1 substrate regulating cellular migration.
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Affiliation(s)
- Dan Li
- Division of Cellular & Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre Singapore, Singapore 168583, Singapore
| | - Suat Peng Neo
- Institute of Molecular & Cellular Biology, Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore
| | - Jayantha Gunaratne
- Institute of Molecular & Cellular Biology, Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117594, Singapore
| | - Kanaga Sabapathy
- Division of Cellular & Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre Singapore, Singapore 168583, Singapore
- Institute of Molecular & Cellular Biology, Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore
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7
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Khomutov MA, Salikhov AI, Mitkevich VA, Tunitskaya VL, Smirnova OA, Korolev SP, Chizhov AO, Gottikh MB, Kochetkov SN, Khomutov AR. C-Methylated Spermidine Derivatives: Convenient Syntheses and Antizyme-Related Effects. Biomolecules 2023; 13:916. [PMID: 37371496 DOI: 10.3390/biom13060916] [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: 03/30/2023] [Revised: 05/25/2023] [Accepted: 05/28/2023] [Indexed: 06/29/2023] Open
Abstract
The biogenic polyamines, spermidine (Spd) and spermine (Spm), are present at millimolar concentrations in all eukaryotic cells, where they participate in the regulation of vitally important cellular functions. Polyamine analogs and derivatives are a traditional and important instrument for the investigation of the cellular functions of polyamines, enzymes of their metabolism, and the regulation of the biosynthesis of antizyme-a key downregulator of polyamine homeostasis. Here, we describe convenient gram-scale syntheses of a set of C-methylated analogs of Spd. The biochemical properties of these compounds and the possibility for the regulation of their activity by moving a methyl group along the polyamine backbone and by changing the stereochemistry of the chiral center(s) are discussed.
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Affiliation(s)
- Maxim A Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Arthur I Salikhov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Vladimir A Mitkevich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Vera L Tunitskaya
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Olga A Smirnova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Sergey P Korolev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Alexander O Chizhov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii Prosp. 47, Moscow 119991, Russia
| | - Marina B Gottikh
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Sergey N Kochetkov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Alex R Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
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8
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Han Y, He Z. Concomitant protein pathogenesis in Parkinson's disease and perspective mechanisms. Front Aging Neurosci 2023; 15:1189809. [PMID: 37181621 PMCID: PMC10174460 DOI: 10.3389/fnagi.2023.1189809] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 04/11/2023] [Indexed: 05/16/2023] Open
Abstract
Comorbidity is a common phenotype in Parkinson's disease (PD). Patients with PD not only have motor deficit symptoms, but also have heterogeneous non-motor symptoms, including cognitive impairment and emotional changes, which are the featured symptoms observed in patients with Alzheimer's disease (AD), frontotemporal dementia (FTD) and cerebrovascular disease. Moreover, autopsy studies have also confirmed the concomitant protein pathogenesis, such as the co-existences of α-synuclein, amyloid-β and tau pathologies in PD and AD patients' brains. Here, we briefly summarize the recent reports regarding the comorbidity issues in PD from both clinical observations and neuropathological evidences. Furthermore, we provide some discussion about the perspective potential mechanisms underlying such comorbidity phenomenon, with a focus on PD and related neurodegenerative diseases.
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Affiliation(s)
- Yuliang Han
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Zhuohao He
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
- University of the Chinese Academy of Sciences, Beijing, China
- Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
- *Correspondence: Zhuohao He,
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Wu T, Xia J, Ge F, Qiu H, Tian L, Liu X, Liu R, Jiang A, Zhu J, Shi L, Yu H, Zhao M, Ren A. Target of Rapamycin Mediated Ornithine Decarboxylase Antizyme Modulate Intracellular Putrescine and Ganoderic Acid Content in Ganoderma lucidum. Microbiol Spectr 2022; 10:e0163322. [PMID: 36125287 PMCID: PMC9604110 DOI: 10.1128/spectrum.01633-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 09/02/2022] [Indexed: 12/31/2022] Open
Abstract
Putrescine (Put) has been shown to play an important regulatory role in cell growth in organisms. As the primary center regulating the homeostasis of polyamine (PA) content, ornithine decarboxylase antizyme (AZ) can regulate PA content through feedback. Nevertheless, the regulatory mechanism of Put is poorly understood in fungi. Here, our analysis showed that GlAZ had a modulate effect on intracellular Put content by interacting with ornithine decarboxylase (ODC) proteins and reducing its intracellular protein levels. In addition, GlAZ upregulated the metabolic pathway of ganoderic acid (GA) biosynthesis in Ganoderma lucidum by modulating the intracellular Put content. However, a target of rapamycin (TOR) was found to promote the accumulation of intracellular Put after the GlTOR inhibitor Rap was added exogenously, and unbiased analyses demonstrated that GlTOR may promote Put production through its inhibitory effect on the level of GlAZ protein in GlTOR-GlAZ-cosilenced strains. The effect of TOR on fungal secondary metabolism was further explored, and the content of GA in the GlTOR-silenced strain after the exogenous addition of the inhibitor Rap was significantly increased compared with that in the untreated wild-type (WT) strain. Silencing of TOR in the GlTOR-silenced strains caused an increase in GA content, which returned to the WT state after replenishing Put. Moreover, the content of GA in GlTOR-GlAZ-cosilenced strains was also not different from that in the WT strain. Consequently, these results strongly indicate that GlTOR affects G. lucidum GA biosynthesis via GlAZ. IMPORTANCE Research on antizyme (AZ) in fungi has focused on the mechanism by which AZ inhibits ornithine decarboxylase (ODC). Moreover, there are existing reports on the regulation of AZ protein translation by TOR. However, little is known about the mechanisms that influence AZ in fungal secondary metabolism. Here, both intracellular Put content and GA biosynthesis in G. lucidum were shown to be regulated through protein interactions between GlAZ and GlODC. Furthermore, exploration of upstream regulators of GlAZ suggested that GlAZ was regulated by the upstream protein GlTOR, which affected intracellular Put levels and ganoderic acid (GA) biosynthesis. The results of our work contribute to the understanding of the upstream regulation of Put and provide new insights into PA regulatory systems and secondary metabolism in fungi.
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Affiliation(s)
- Tao Wu
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
- Sanya Institute of Nanjing Agricultural University, Hainan, People’s Republic of China
| | - Jiale Xia
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Feng Ge
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Hao Qiu
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Li Tian
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Xiaotian Liu
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Rui Liu
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Ailiang Jiang
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Jing Zhu
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Liang Shi
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Hanshou Yu
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Mingwen Zhao
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
| | - Ang Ren
- Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Jiangsu, People’s Republic of China
- Sanya Institute of Nanjing Agricultural University, Hainan, People’s Republic of China
- Institute of Biology, Guizhou Academy of Sciences, Guizhou, People’s Republic of China
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10
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AZIN1 RNA editing alters protein interactions, leading to nuclear translocation and worse outcomes in prostate cancer. Exp Mol Med 2022; 54:1713-1726. [PMID: 36202978 PMCID: PMC9636422 DOI: 10.1038/s12276-022-00845-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 06/14/2022] [Accepted: 07/08/2022] [Indexed: 01/19/2023] Open
Abstract
The transcript encoding Antizyme Inhibitor 1 (AZIN1) is frequently edited in various cancers, and this editing is associated with enhanced tumor aggressiveness. After comparison of wild-type AZIN1 (wtAZIN1) and edited AZIN1 (edAZIN1, which contains a Ser367Gly substitution), we report differential binding of edAZIN1 to a small set of proteins; specifically, edAZIN1 binds to alpha-smooth muscle actin (ACTA2), gamma actin 1 (ACTG1), and myosin9, whereas wtAZIN1 does not. This binding enables nuclear translocation of edAZIN1. In contrast to overexpression of edAZIN1 and, to a lesser extent, (editable) wtAZIN1, overexpression of an uneditable AZIN1 allele does not promote a cellular phenotype associated with increased tumorigenicity. In patients, both editing and nuclear localization of AZIN1 are common and are associated with tumor aggressiveness, i.e., a higher Gleason score, higher genomic instability, and a shorter progression-free survival time. In conclusion, the data indicate that binding of edAZIN1 to the actin/myosin9 complex supports its nuclear translocation, leading to enhanced cellular aggressiveness, and is associated with worse prostate cancer outcomes.
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Zhou XE, Schultz CR, Suino Powell K, Henrickson A, Lamp J, Brunzelle JS, Demeler B, Vega IE, Bachmann AS, Melcher K. Structure and Enzymatic Activity of an Intellectual Disability-Associated Ornithine Decarboxylase Variant, G84R. ACS OMEGA 2022; 7:34665-34675. [PMID: 36188294 PMCID: PMC9520691 DOI: 10.1021/acsomega.2c04702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/30/2022] [Indexed: 06/13/2023]
Abstract
Ornithine decarboxylase (ODC) is a rate-limiting enzyme for the synthesis of polyamines (PAs). PAs are required for proliferation, and increased ODC activity is associated with cancer and neural over-proliferation. ODC levels and activity are therefore tightly regulated, including through the ODC-specific inhibitor, antizyme AZ1. Recently, ODC G84R has been reported as a partial loss-of-function variant that is associated with intellectual disability and seizures. However, G84 is distant from both the catalytic center and the ODC homodimerization interface. To understand how G84R modulates ODC activity, we have determined the crystal structure of ODC G84R in both the presence and the absence of the cofactor pyridoxal 5-phosphate. The structures show that the replacement of G84 by arginine leads to hydrogen bond formation of R84 with F420, the last residue of the ODC C-terminal helix, a structural element that is involved in the AZ1-mediated proteasomal degradation of ODC. In contrast, the catalytic center is essentially indistinguishable from that of wildtype ODC. We therefore reanalyzed the catalytic activity of ODC G84R and found that it is rescued when the protein is purified in the presence of a reducing agent to mimic the reducing environment of the cytoplasm. This suggests that R84 may exert its neurological effects not through reducing ODC catalytic activity but through misregulation of its AZ1-mediated proteasomal degradation.
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Affiliation(s)
- X. Edward Zhou
- Department
of Structural Biology, Van Andel Institute, Grand Rapids, Michigan 49503, United States
| | - Chad R. Schultz
- Department
of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, Michigan 49546, United States
| | - Kelly Suino Powell
- Department
of Structural Biology, Van Andel Institute, Grand Rapids, Michigan 49503, United States
| | - Amy Henrickson
- Department
of Chemistry and Biochemistry, The University
of Lethbridge, Lethbridge, AB T1K3M4, Canada
| | - Jared Lamp
- Department
of Translational Neuroscience, Integrated Mass Spectrometry Unit,
College of Human Medicine, Michigan State
University, Grand
Rapids, Michigan 49503, United States
| | - Joseph S. Brunzelle
- Northwestern
University Synchrotron Research Center, Life Sciences Collaborative
Access Team, Northwestern University, Argonne, Illinois 60439, United States
| | - Borries Demeler
- Department
of Chemistry and Biochemistry, The University
of Lethbridge, Lethbridge, AB T1K3M4, Canada
- Department
of Chemistry and Biochemistry, The University
of Montana, Missoula, Montana 59812, United
States
| | - Irving E. Vega
- Department
of Translational Neuroscience, Integrated Mass Spectrometry Unit,
College of Human Medicine, Michigan State
University, Grand
Rapids, Michigan 49503, United States
| | - André S. Bachmann
- Department
of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, Michigan 49546, United States
| | - Karsten Melcher
- Department
of Structural Biology, Van Andel Institute, Grand Rapids, Michigan 49503, United States
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12
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Lian J, Liang Y, Zhang H, Lan M, Ye Z, Lin B, Qiu X, Zeng J. The role of polyamine metabolism in remodeling immune responses and blocking therapy within the tumor immune microenvironment. Front Immunol 2022; 13:912279. [PMID: 36119047 PMCID: PMC9479087 DOI: 10.3389/fimmu.2022.912279] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
The study of metabolism provides important information for understanding the biological basis of cancer cells and the defects of cancer treatment. Disorders of polyamine metabolism is a common metabolic change in cancer. With the deepening of understanding of polyamine metabolism, including molecular functions and changes in cancer, polyamine metabolism as a new anti-cancer strategy has become the focus of attention. There are many kinds of polyamine biosynthesis inhibitors and transport inhibitors, but not many drugs have been put into clinical application. Recent evidence shows that polyamine metabolism plays essential roles in remodeling the tumor immune microenvironment (TIME), particularly treatment of DFMO, an inhibitor of ODC, alters the immune cell population in the tumor microenvironment. Tumor immunosuppression is a major problem in cancer treatment. More and more studies have shown that the immunosuppressive effect of polyamines can help cancer cells to evade immune surveillance and promote tumor development and progression. Therefore, targeting polyamine metabolic pathways is expected to become a new avenue for immunotherapy for cancer.
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Affiliation(s)
- Jiachun Lian
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Laboratory Medicine, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Yanfang Liang
- Department of Pathology, Dongguan Hospital Affiliated to Jinan University, Binhaiwan Central Hospital of Dongguan, Dongguan, China
| | - Hailiang Zhang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Institute of Laboratory Medicine, School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Minsheng Lan
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Ziyu Ye
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Department of Pathology, Dongguan Hospital Affiliated to Jinan University, Binhaiwan Central Hospital of Dongguan, Dongguan, China
- Dongguan Metabolite Analysis Engineering Technology Center of Cells for Medical Use, Guangdong Xinghai Institute of Cell, Dongguan, China
| | - Bihua Lin
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Key Laboratory of Medical Bioactive Molecular Research for Department of Education of Guangdong Province, Collaborative Innovation Center for Antitumor Active Substance Research and Development, Zhanjiang, China
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Guangdong Medical University, Zhanjiang, China
| | - Xianxiu Qiu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Key Laboratory of Medical Bioactive Molecular Research for Department of Education of Guangdong Province, Collaborative Innovation Center for Antitumor Active Substance Research and Development, Zhanjiang, China
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Guangdong Medical University, Zhanjiang, China
| | - Jincheng Zeng
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
- Dongguan Metabolite Analysis Engineering Technology Center of Cells for Medical Use, Guangdong Xinghai Institute of Cell, Dongguan, China
- Key Laboratory of Medical Bioactive Molecular Research for Department of Education of Guangdong Province, Collaborative Innovation Center for Antitumor Active Substance Research and Development, Zhanjiang, China
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Guangdong Medical University, Zhanjiang, China
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13
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Hemmati-Dinarvand M, Kheirandish S, Khodadadian A, Mostafazadeh M, Seghatoleslam A. Blockage of Wnt/β-catenin Signaling Pathway in Colorectal Cancer Resistant Cells by Nitazoxanide Effects on Peptidylarginine Deiminases Expression. Asian Pac J Cancer Prev 2022; 23:3215-3222. [PMID: 36172687 PMCID: PMC9810304 DOI: 10.31557/apjcp.2022.23.9.3215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND Multidrug resistance (MDR) is a major cause of unsuccessful cancer treatment in which drugs are not effective. Therefore, it is necessary to identify the critical mechanisms of the development of MDR and target those with novel compounds. Accordingly, the current study is the first to investigate the combination effect and molecular mechanism of nitazoxanide (NTZ) and oxaliplatin (OXP) on LS174T/OXP-resistant cells. METHODS The effect of NTZ on OXP cytotoxicity in LS174T and LS174T/OXP cell lines was evaluated by MTT assay. Changes in expression levels of MDR1, MRP1, CTNNB1, peptidylarginine deiminase (PAD)2, and PAD4 genes and proteins were evaluated by RT-qPCR and western blotting methods, respectively. Lastly, the apoptosis assay was performed by flow cytometer. RESULTS OXP resistant and sensitive cells were identified based on the IC50 values (11567 nM vs. 1745 nM, p<0.05 for 24 h treatment; and 5161 nM vs. 882 nM, p<0.05 for 48 h incubation). The combination of NTZ and OXP for 48 h led to a reduction in IC50 values in resistant cells (2154 nM, p<0.05). The effect of NTZ plus OXP significantly decreased the expression of MDR1 (p<0.001), MRP1 (p<0.05), and CTNNB1 (p<0.001), while PAD2 and PAD4 expression was significantly increased (p<0.001). This combination therapy enhanced the percentage of the sub-G1 population (apoptosed) compared to other groups. CONCLUSION The results showed that NTZ leads to notable upregulation of PAD2 and PAD4, which can disrupt the Wnt/β-catenin signaling pathway and reverse the MDR by reducing MDR1 and MRP1 expression.
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Affiliation(s)
- Mohsen Hemmati-Dinarvand
- Department of Clinical Biochemistry, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
| | - Shahnaz Kheirandish
- Department of Medical Genetics, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Ali Khodadadian
- Department of Medical Genetics, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Mostafa Mostafazadeh
- Department of Clinical Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Atefeh Seghatoleslam
- Department of Clinical Biochemistry, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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14
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Tran JU, Brown BL. Structural Basis for Allostery in PLP-dependent Enzymes. Front Mol Biosci 2022; 9:884281. [PMID: 35547395 PMCID: PMC9081730 DOI: 10.3389/fmolb.2022.884281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Abstract
Pyridoxal 5'-phosphate (PLP)-dependent enzymes are found ubiquitously in nature and are involved in a variety of biological pathways, from natural product synthesis to amino acid and glucose metabolism. The first structure of a PLP-dependent enzyme was reported over 40 years ago, and since that time, there is a steady wealth of structural and functional information revealed for a wide array of these enzymes. A functional mechanism that is gaining more appreciation due to its relevance in drug design is that of protein allostery, where binding of a protein or ligand at a distal site influences the structure, organization, and function at the active site. Here, we present a review of current structure-based mechanisms of allostery for select members of each PLP-dependent enzyme family. Knowledge of these mechanisms may have a larger potential for identifying key similarities and differences among enzyme families that can eventually be exploited for therapeutic development.
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Affiliation(s)
- Jenny U. Tran
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Breann L. Brown
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, United States
- Center for Structural Biology, Vanderbilt University School of Medicine, Nashville, TN, United States
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15
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Role of Polyamine-Induced Dimerization of Antizyme in Its Cellular Functions. Int J Mol Sci 2022; 23:ijms23094614. [PMID: 35563006 PMCID: PMC9104013 DOI: 10.3390/ijms23094614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 02/05/2023] Open
Abstract
The polyamines, spermine (Spm) and spermidine (Spd), are important for cell growth and function. Their homeostasis is strictly controlled, and a key downregulator of the polyamine pool is the polyamine-inducible protein, antizyme 1 (OAZ1). OAZ1 inhibits polyamine uptake and targets ornithine decarboxylase (ODC), the rate-limiting enzyme of polyamine biosynthesis, for proteasomal degradation. Here we report, for the first time, that polyamines induce dimerization of mouse recombinant full-length OAZ1, forming an (OAZ1)2-Polyamine complex. Dimerization could be modulated by functionally active C-methylated spermidine mimetics (MeSpds) by changing the position of the methyl group along the Spd backbone—2-MeSpd was a poor inducer as opposed to 1-MeSpd, 3-MeSpd, and Spd, which were good inducers. Importantly, the ability of compounds to inhibit polyamine uptake correlated with the efficiency of the (OAZ1)2-Polyamine complex formation. Thus, the (OAZ1)2-Polyamine complex may be needed to inhibit polyamine uptake. The efficiency of polyamine-induced ribosomal +1 frameshifting of OAZ1 mRNA could also be differentially modulated by MeSpds—2-MeSpd was a poor inducer of OAZ1 biosynthesis and hence a poor downregulator of ODC activity unlike the other MeSpds. These findings offer new insight into the OAZ1-mediated regulation of polyamine homeostasis and provide the chemical tools to study it.
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16
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Jia D, Liu H, Zhang J, Wan W, Wang Z, Zhang X, Chen Q, Wei T. Polyamine-metabolizing enzymes are activated to promote the proper assembly of rice stripe mosaic virus in insect vectors. STRESS BIOLOGY 2022; 2:10. [PMID: 37676339 PMCID: PMC10441986 DOI: 10.1007/s44154-021-00032-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 12/30/2021] [Indexed: 09/08/2023]
Abstract
Both viruses and host cells compete for intracellular polyamines for efficient propagation. Currently, how the key polyamine-metabolizing enzymes, including ornithine decarboxylase 1 (ODC1) and its antizyme 1 (OAZ1), are activated to co-ordinate viral propagation and polyamine biosynthesis remains unknown. Here, we report that the matrix protein of rice stripe mosaic virus (RSMV), a cytorhabdovirus, directly hijacks OAZ1 to ensure the proper assembly of rigid bacilliform non-enveloped virions in leafhopper vector. Viral matrix protein effectively competes with ODC1 to bind to OAZ1, and thus, the ability of OAZ1 to target and mediate the degradation of ODC1 is significantly inhibited during viral propagation, which finally promotes polyamines production. Thus, OAZ1 and ODC1 are activated to synergistically promote viral persistent propagation and polyamine biosynthesis in viruliferous vectors. Our data suggest that it is a novel mechanism for rhabdovirus to exploit OAZ1 for facilitating viral assembly.
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Affiliation(s)
- Dongsheng Jia
- Fujian Province Key Laboratory of Plant Virology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Huan Liu
- Fujian Province Key Laboratory of Plant Virology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Jian Zhang
- Fujian Province Key Laboratory of Plant Virology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Wenqiang Wan
- Fujian Province Key Laboratory of Plant Virology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Zongwen Wang
- Fujian Province Key Laboratory of Plant Virology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Xiaofeng Zhang
- Fujian Province Key Laboratory of Plant Virology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Qian Chen
- Fujian Province Key Laboratory of Plant Virology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China
| | - Taiyun Wei
- Fujian Province Key Laboratory of Plant Virology, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, People's Republic of China.
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17
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Kulkarni A, Anderson CM, Mirmira RG, Tersey SA. Role of Polyamines and Hypusine in β Cells and Diabetes Pathogenesis. Metabolites 2022; 12:344. [PMID: 35448531 PMCID: PMC9028953 DOI: 10.3390/metabo12040344] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 02/04/2023] Open
Abstract
The polyamines-putrescine, spermidine, and spermine-are polycationic, low molecular weight amines with cellular functions primarily related to mRNA translation and cell proliferation. Polyamines partly exert their effects via the hypusine pathway, wherein the polyamine spermidine provides the aminobutyl moiety to allow posttranslational modification of the translation factor eIF5A with the rare amino acid hypusine (hydroxy putrescine lysine). The "hypusinated" eIF5A (eIF5Ahyp) is considered to be the active form of the translation factor necessary for the translation of mRNAs associated with stress and inflammation. Recently, it has been demonstrated that activity of the polyamines-hypusine circuit in insulin-producing islet β cells contributes to diabetes pathogenesis under conditions of inflammation. Elevated levels of polyamines are reported in both exocrine and endocrine cells of the pancreas, which may contribute to endoplasmic reticulum stress, oxidative stress, inflammatory response, and autophagy. In this review, we have summarized the existing research on polyamine-hypusine metabolism in the context of β-cell function and diabetes pathogenesis.
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Affiliation(s)
| | | | | | - Sarah A. Tersey
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA; (A.K.); (C.M.A.); (R.G.M.)
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18
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Rieck J, Skatchkov SN, Derst C, Eaton MJ, Veh RW. Unique Chemistry, Intake, and Metabolism of Polyamines in the Central Nervous System (CNS) and Its Body. Biomolecules 2022; 12:biom12040501. [PMID: 35454090 PMCID: PMC9025450 DOI: 10.3390/biom12040501] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 02/04/2023] Open
Abstract
Polyamines (PAs) are small, versatile molecules with two or more nitrogen-containing positively charged groups and provide widespread biological functions. Most of these aspects are well known and covered by quite a number of excellent surveys. Here, the present review includes novel aspects and questions: (1) It summarizes the role of most natural and some important synthetic PAs. (2) It depicts PA uptake from nutrition and bacterial production in the intestinal system following loss of PAs via defecation. (3) It highlights the discrepancy between the high concentrations of PAs in the gut lumen and their low concentration in the blood plasma and cerebrospinal fluid, while concentrations in cellular cytoplasm are much higher. (4) The present review provides a novel and complete scheme for the biosynthesis of Pas, including glycine, glutamate, proline and others as PA precursors, and provides a hypothesis that the agmatine pathway may rescue putrescine production when ODC knockout seems to be lethal (solving the apparent contradiction in the literature). (5) It summarizes novel data on PA transport in brain glial cells explaining why these cells but not neurons preferentially accumulate PAs. (6) Finally, it provides a novel and complete scheme for PA interconversion, including hypusine, putreanine, and GABA (unique gliotransmitter) as end-products. Altogether, this review can serve as an updated contribution to understanding the PA mystery.
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Affiliation(s)
- Julian Rieck
- Institut für Zell- und Neurobiologie, Centrum 2, Charité—Universitätsmedizin Berlin, Charitéplatz 1, D-10117 Berlin, Germany;
| | - Serguei N. Skatchkov
- Department of Physiology, Universidad Central del Caribe, Bayamón, PR 00956, USA
- Department of Biochemistry, Universidad Central del Caribe, Bayamón, PR 00956, USA;
- Correspondence: (S.N.S.); (R.W.V.)
| | - Christian Derst
- Institut für Integrative Neuroanatomie, Centrum 2, Charité—Universitätsmedizin Berlin, Charitéplatz 1, D-10117 Berlin, Germany;
| | - Misty J. Eaton
- Department of Biochemistry, Universidad Central del Caribe, Bayamón, PR 00956, USA;
| | - Rüdiger W. Veh
- Institut für Zell- und Neurobiologie, Centrum 2, Charité—Universitätsmedizin Berlin, Charitéplatz 1, D-10117 Berlin, Germany;
- Correspondence: (S.N.S.); (R.W.V.)
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19
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Carbone D, Vestuto V, Ferraro MR, Ciaglia T, Pecoraro C, Sommella E, Cascioferro S, Salviati E, Novi S, Tecce MF, Amodio G, Iraci N, Cirrincione G, Campiglia P, Diana P, Bertamino A, Parrino B, Ostacolo C. Metabolomics-assisted discovery of a new anticancer GLS-1 inhibitor chemotype from a nortopsentin-inspired library: From phenotype screening to target identification. Eur J Med Chem 2022; 234:114233. [DOI: 10.1016/j.ejmech.2022.114233] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 12/21/2022]
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20
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Structural basis of binding and inhibition of ornithine decarboxylase by 1-amino-oxy-3-aminopropane. Biochem J 2021; 478:4137-4149. [PMID: 34796899 DOI: 10.1042/bcj20210647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 11/17/2022]
Abstract
Ornithine decarboxylase (ODC) is the rate-limiting enzyme for the synthesis of polyamines (PAs). PAs are oncometabolites that are required for proliferation, and pharmaceutical ODC inhibition is pursued for the treatment of hyperproliferative diseases, including cancer and infectious diseases. The most potent ODC inhibitor is 1-amino-oxy-3-aminopropane (APA). A previous crystal structure of an ODC-APA complex indicated that APA non-covalently binds ODC and its cofactor pyridoxal 5-phosphate (PLP) and functions by competing with the ODC substrate ornithine for binding to the catalytic site. We have revisited the mechanism of APA binding and ODC inhibition through a new crystal structure of APA-bound ODC, which we solved at 2.49 Å resolution. The structure unambiguously shows the presence of a covalent oxime between APA and PLP in the catalytic site, which we confirmed in solution by mass spectrometry. The stable oxime makes extensive interactions with ODC but cannot be catabolized, explaining APA's high potency in ODC inhibition. In addition, we solved an ODC/PLP complex structure with citrate bound at the substrate-binding pocket. These two structures provide new structural scaffolds for developing more efficient pharmaceutical ODC inhibitors.
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21
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Li QZ, Zuo ZW, Zhou ZR, Ji Y. Polyamine homeostasis-based strategies for cancer: The role of combination regimens. Eur J Pharmacol 2021; 910:174456. [PMID: 34464603 DOI: 10.1016/j.ejphar.2021.174456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/14/2021] [Accepted: 08/26/2021] [Indexed: 01/07/2023]
Abstract
Spermine, spermidine and putrescine polyamines are naturally occurring ubiquitous positively charged amines and are essential metabolites for biological functions in our life. These compounds play a crucial role in many cell processes, including cellular proliferation, growth, and differentiation. Intracellular levels of polyamines depend on their biosynthesis, transport and degradation. Polyamine levels are high in cancer cells, which leads to the promotion of tumor growth, invasion and metastasis. Targeting polyamine metabolism as an anticancer strategy is considerably rational. Due to compensatory mechanisms, a single strategy does not achieve satisfactory clinical effects when using a single agent. Combination regimens are more clinically promising for cancer chemoprevention because they work synergistically with causing little or no adverse effects due to each individual agent being used at lower doses. Moreover, bioactive substances have advantages over single chemical agents because they can affect multiple targets. In this review, we discuss anticancer strategies targeting polyamine metabolism and describe how combination treatments and effective natural active ingredients are promising therapies. The existing research suggests that polyamine metabolic enzymes are important therapeutic targets and that combination therapies can be more effective than monotherapies based on polyamine depletion.
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Affiliation(s)
- Qi-Zhang Li
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Institute of Biomedical and Pharmaceutical Sciences, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, PR China.
| | - Zan-Wen Zuo
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Institute of Biomedical and Pharmaceutical Sciences, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, PR China
| | - Ze-Rong Zhou
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Institute of Biomedical and Pharmaceutical Sciences, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, PR China
| | - Yan Ji
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Institute of Biomedical and Pharmaceutical Sciences, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, Hubei, 430068, PR China
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22
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Kamiab F, Tavassolian I, Hosseinifarahi M. Biologia futura: the role of polyamine in plant science. Biol Futur 2021; 71:183-194. [PMID: 34554509 DOI: 10.1007/s42977-020-00027-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 06/10/2020] [Indexed: 12/27/2022]
Abstract
Polyamines (PAs) are positively charged amines such as putrescine, spermidine and spermine that ubiquitously exist in all organisms. They have been considered as a new type of plant biostimulants, with pivotal roles in many physiological processes. Polyamine levels are controlled by intricate regulatory feedback mechanisms. PAs are directly or indirectly regulated through interaction with signaling metabolites (H202, NO), aminobutyric acid (GABA), phytohormones (abscisic acid, gibberellins, ethylene, cytokinins, auxin, jasmonic acid and brassinosteroids) and nitrogen metabolism (maintaining the balance of C:N in plants). Exogenous applications of PAs enhance the stress resistance, flowering and fruit set, synthesis of bioactive compounds and extension of agricultural crops shelf life. Up-regulation of PAs biosynthesis by genetic manipulation can be a novel strategy to increase the productivity of agricultural crops. Recently, the role of PAs in symbiosis relationships between plants and beneficial microorganisms has been confirmed. PA metabolism has also been targeted to design new harmless fungicides.
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Affiliation(s)
- Fereshteh Kamiab
- Department of Horticulture, Faculty of Agriculture, Rafsanjan Branch, Islamic Azad University, Rafsanjan, Iran.
| | - Iraj Tavassolian
- Research and Technology Institute of Plant Production, Shahid Bahonar University of Kerman, Kerman, Iran.,Department of Horticulture, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mehdi Hosseinifarahi
- Department of Horticultural Science, Yasooj Branch, Islamic Azad University, Yasooj, Iran
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23
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Teng JS, Ooi YY, Chye SM, Ling APK, Koh RY. Immunotherapies for Parkinson's disease: Progression of Clinical Development. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2021; 20:802-813. [PMID: 34042040 DOI: 10.2174/1871527320666210526160926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 11/22/2022]
Abstract
Parkinson's disease is a common neurodegenerative disease affecting the movement and wellbeing of most elderlies. The manifestations of Parkinson's disease often include resting tremor, stiffness, bradykinesia and muscular rigidity. The typical hallmark of Parkinson's disease is the destruction of neurons in the substantia nigra and the presence of Lewy bodies in different compartments of the central nervous system. Due to various limitations to the currently available treatments, immunotherapies have emerged to be the new approach to Parkinson's disease treatment. This approach shows some positive outcomes on the efficacy in removing the aggregated species of alpha-synuclein, which is believed to be one of the causes of Parkinson's disease. In this review, an overview of how alpha-synuclein contributes to Parkinson's disease and the effects of a few new immunotherapeutic treatments, including BIIB054 (cinpanemab), MEDI1341, AFFITOPE and PRX002 (prasinezumab) that are currently under clinical development, will be discussed.
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Affiliation(s)
- Jet Shee Teng
- Division of Applied Biomedical Science and Biotechnology, School of Health Science, International Medical University, Kuala Lumpur, Malaysia
| | - Yin Yin Ooi
- School of Biosciences, Faculty of Health & Medical Sciences, Taylor's University, Selangor, Malaysia
| | - Soi Moi Chye
- Division of Applied Biomedical Science and Biotechnology, School of Health Science, International Medical University, Kuala Lumpur, Malaysia
| | - Anna Pick Kiong Ling
- Division of Applied Biomedical Science and Biotechnology, School of Health Science, International Medical University, Kuala Lumpur, Malaysia
| | - Rhun Yian Koh
- Division of Applied Biomedical Science and Biotechnology, School of Health Science, International Medical University, Kuala Lumpur, Malaysia
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24
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Nakanishi S, Cleveland JL. Polyamine Homeostasis in Development and Disease. MEDICAL SCIENCES (BASEL, SWITZERLAND) 2021; 9:medsci9020028. [PMID: 34068137 PMCID: PMC8162569 DOI: 10.3390/medsci9020028] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/02/2021] [Accepted: 05/06/2021] [Indexed: 12/12/2022]
Abstract
Polycationic polyamines are present in nearly all living organisms and are essential for mammalian cell growth and survival, and for development. These positively charged molecules are involved in a variety of essential biological processes, yet their underlying mechanisms of action are not fully understood. Several studies have shown both beneficial and detrimental effects of polyamines on human health. In cancer, polyamine metabolism is frequently dysregulated, and elevated polyamines have been shown to promote tumor growth and progression, suggesting that targeting polyamines is an attractive strategy for therapeutic intervention. In contrast, polyamines have also been shown to play critical roles in lifespan, cardiac health and in the development and function of the brain. Accordingly, a detailed understanding of mechanisms that control polyamine homeostasis in human health and disease is needed to develop safe and effective strategies for polyamine-targeted therapy.
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25
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Scheu AHA, Lim SYT, Metzner FJ, Mohammed S, Howarth M. NeissLock provides an inducible protein anhydride for covalent targeting of endogenous proteins. Nat Commun 2021; 12:717. [PMID: 33514717 PMCID: PMC7846742 DOI: 10.1038/s41467-021-20963-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 01/04/2021] [Indexed: 11/22/2022] Open
Abstract
The Neisseria meningitidis protein FrpC contains a self-processing module (SPM) undergoing autoproteolysis via an aspartic anhydride. Herein, we establish NeissLock, using a binding protein genetically fused to SPM. Upon calcium triggering of SPM, the anhydride at the C-terminus of the binding protein allows nucleophilic attack by its target protein, ligating the complex. We establish a computational tool to search the Protein Data Bank, assessing proximity of amines to C-termini. We optimize NeissLock using the Ornithine Decarboxylase/Antizyme complex. Various sites on the target (α-amine or ε-amines) react with the anhydride, but reaction is blocked if the partner does not dock. Ligation is efficient at pH 7.0, with half-time less than 2 min. We arm Transforming Growth Factor-α with SPM, enabling specific covalent coupling to Epidermal Growth Factor Receptor at the cell-surface. NeissLock harnesses distinctive protein chemistry for high-yield covalent targeting of endogenous proteins, advancing the possibilities for molecular engineering. Covalent conjugation of endogenous protein complexes offers many opportunities for fundamental and clinical research. Based on a bacterial protein domain that forms a reactive anhydride in the presence of Ca2+, the authors here develop a system that enables the covalent capture of endogenous binding partners.
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Affiliation(s)
- Arne H A Scheu
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Sheryl Y T Lim
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Felix J Metzner
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK.,Gene Center and Department of Biochemistry, Ludwig-Maximilians-Universität München, Feodor-Lynen-Straße 25, 81377, Munich, Germany
| | - Shabaz Mohammed
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Mark Howarth
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK.
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26
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Tulluri V, Nemmara VV. Role of Antizyme Inhibitor Proteins in Cancers and Beyond. Onco Targets Ther 2021; 14:667-682. [PMID: 33531815 PMCID: PMC7846877 DOI: 10.2147/ott.s281157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/05/2020] [Indexed: 01/30/2023] Open
Abstract
Polyamines are multivalent organic cations essential for many cellular functions, including cell growth, differentiation, and proliferation. However, elevated polyamine levels are associated with a slew of pathological conditions, including multiple cancers. Intracellular polyamine levels are primarily controlled by the autoregulatory circuit comprising two different protein types, Antizymes (OAZ) and Antizyme Inhibitors (AZIN), which regulate the activity of the polyamine biosynthetic enzyme ornithine decarboxylase (ODC). While OAZ functions to decrease the intracellular polyamine levels by inhibiting ODC activity and exerting a negative control of polyamine uptake, AZIN operates to increase intracellular polyamine levels by binding and sequestering OAZ to relieve ODC inhibition and to increase polyamine uptake. Interestingly, OAZ and AZIN exhibit autoregulatory functions on polyamine independent pathways as well. A growing body of evidence demonstrates the dysregulation of AZIN expression in multiple cancers. Additionally, RNA editing of the Azin1 transcript results in a "gain-of-function" phenotype, which is shown to drive aggressive tumor types. This review will discuss the recent advances in AZIN's role in cancers via aberrant polyamine upregulation and its polyamine-independent protein regulation. This report will also highlight AZIN interaction with proteins outside the polyamine biosynthetic pathway and its potential implication to cancer pathogenesis. Finally, this review will reveal the protein interaction network of AZIN isoforms by analyzing three different interactome databases.
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Affiliation(s)
- Vennela Tulluri
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ08028, USA
| | - Venkatesh V Nemmara
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ08028, USA
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27
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Yang YF, Lee CY, Hsieh JY, Liu YL, Lin CL, Liu GY, Hung HC. Regulation of polyamine homeostasis through an antizyme citrullination pathway. J Cell Physiol 2021; 236:5646-5663. [PMID: 33432662 DOI: 10.1002/jcp.30252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/05/2020] [Accepted: 12/18/2020] [Indexed: 11/12/2022]
Abstract
This study reveals an uncovered mechanism for the regulation of polyamine homeostasis through protein arginyl citrullination of antizyme (AZ), a natural inhibitor of ornithine decarboxylase (ODC). ODC is critical for the cellular production of polyamines. AZ binds to ODC dimers and promotes the degradation of ODC via the 26S proteasome. This study demonstrates the protein citrullination of AZ catalyzed by peptidylarginine deiminase type 4 (PAD4) both in vitro and in cells. Upon PAD4 activation, the AZ protein was citrullinated and accumulated, leading to higher levels of ODC proteins in the cell. In the PAD4-overexpressing and activating cells, the levels of ODC enzyme activity and the product putrescine increased with the level of citrullinated AZ proteins and PAD4 activity. Suppressing cellular PAD4 activity reduces the cellular levels of ODC and downregulates cellular polyamines. Furthermore, citrullination of AZ in the C-terminus attenuates AZ function in the inhibition, binding, and degradation of ODC. This paper provides evidence to illustrate that PAD4-mediated AZ citrullination upregulates cellular ODC and polyamines by retarding ODC degradation, thus interfering with the homeostasis of cellular polyamines, which may be an important pathway regulating AZ functions that is relevant to cancer biology.
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Affiliation(s)
- Yi-Fang Yang
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Ph.D. Program in Tissue Engineering and Regenerative Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Chien-Yun Lee
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan.,Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan
| | - Ju-Yi Hsieh
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Liang Liu
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chi-Li Lin
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Guang-Yaw Liu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Allergy Immunology and Rheumatology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Hui-Chih Hung
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Institute of Genomics & Bioinformatics, National Chung Hsing University, Taichung, Taiwan.,iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
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28
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Baicalein, 7,8-Dihydroxyflavone and Myricetin as Potent Inhibitors of Human Ornithine Decarboxylase. Nutrients 2020; 12:nu12123867. [PMID: 33348871 PMCID: PMC7765794 DOI: 10.3390/nu12123867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 11/23/2022] Open
Abstract
Background: Human ornithine decarboxylase (ODC) is a well-known oncogene, and the discovery of ODC enzyme inhibitors is a beneficial strategy for cancer therapy and prevention. Methods: We examined the inhibitory effects of a variety of flavone and flavonol derivatives on ODC enzymatic activity, and performed in silico molecular docking of baicalein, 7,8-dihydroxyflavone and myricetin to the whole dimer of human ODC to investigate the possible binding site of these compounds on ODC. We also examined the cytotoxic effects of these compounds with cell-based studies. Results: Baicalein, 7,8-dihydroxyflavone and myricetin exhibited significant ODC suppression activity with IC50 values of 0.88 µM, 2.54 µM, and 7.3 µM, respectively, which were much lower than that of the active-site irreversible inhibitor α-DL-difluoromethylornithine (IC50, the half maximal inhibitory concentration, of approximately 100 µM). Kinetic studies and molecular docking simulations suggested that baicalein, and 7,8-dihydroxyflavone act as noncompetitive inhibitors that are hydrogen-bonded to the region near the active site pocket in the dimer interface of the enzyme. Baicalein and myricetin suppress cell growth and induce cellular apoptosis, and both of these compounds suppress the ODC-evoked anti-apoptosis of cells. Conclusions: Therefore, we suggest that the flavone or flavonol derivatives baicalein, 7,8-dihydroxyflavone, and myricetin are potent chemopreventive and chemotherapeutic agents that target ODC.
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29
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Li J, Meng Y, Wu X, Sun Y. Polyamines and related signaling pathways in cancer. Cancer Cell Int 2020; 20:539. [PMID: 33292222 PMCID: PMC7643453 DOI: 10.1186/s12935-020-01545-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/08/2020] [Indexed: 02/06/2023] Open
Abstract
Polyamines are aliphatic compounds with more than two amino groups that play various important roles in human cells. In cancer, polyamine metabolism dysfunction often occurs, and regulatory mechanisms of polyamine. This review summarizes the existing research on the metabolism and transport of polyamines to study the association of oncogenes and related signaling pathways with polyamines in tumor cells. Drugs that regulate enzymes have been developed for cancer treatment, and in the future, more attention should be paid to treatment strategies that simultaneously modulate polyamine metabolism and carcinogenic signaling pathways. In addition, the polyamine pathway is a potential target for cancer chemoprevention. As an irreversible suicide inhibitor of the ornithine decarboxylase (a vital enzyme of polyamine synthesis), Difluoro-methylornithine had been shown to have the chemoprevention effect on cancer. Therefore, we summarized and analyzed the chemoprophylaxis effect of the difluoromethylornithine in this systematic review.
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Affiliation(s)
- Jiajing Li
- Department of Otorhinolaryngology-Head and Neck Surgery, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China.,Department of Pathophysiology, Prostate Diseases Prevention and Treatment Research Center, College of Basic Medical Science, Jilin University, Changchun, China
| | - Yan Meng
- Department of Pathophysiology, Prostate Diseases Prevention and Treatment Research Center, College of Basic Medical Science, Jilin University, Changchun, China
| | - Xiaolin Wu
- Department of Pathophysiology, Prostate Diseases Prevention and Treatment Research Center, College of Basic Medical Science, Jilin University, Changchun, China
| | - Yuxin Sun
- Department of Otorhinolaryngology-Head and Neck Surgery, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China.
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30
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Chai X, Zhan J, Pan J, He M, Li B, Wang J, Ma H, Wang Y, Liu S. The rational discovery of multipurpose inhibitors of the ornithine decarboxylase. FASEB J 2020; 34:10907-12921. [PMID: 32767470 DOI: 10.1096/fj.202001222r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/30/2020] [Accepted: 07/20/2020] [Indexed: 01/02/2023]
Abstract
Metabolic reprograming is a hallmark of cancer, and the polyamine metabolic network is dysregulated in many cancers. Ornithine decarboxylase (ODC) is a rate-limiting enzyme for polyamine synthesis in the polyamine metabolic network. In many cancer cells, ODC is over-expressed, so this enzyme has been an attracting anti-cancer drug target. In the catalysis axis (pathway), ODC converts ornithine to putrescine. Meanwhile, ODC's activity is regulated by protein-protein interactions (PPIs), including the ODC-OAZ1-AZIN1 PPI axis and its monomer-dimer equilibrium. Previous studies showed that when ODC's activity is inhibited, the PPIs might counteract the inhibition efficiency. Therefore, we proposed that multipurpose inhibitors that can simultaneously inhibit ODC's activity and perturb the PPIs would be very valuable as drug candidates and molecular tools. To discover multipurpose ODC inhibitors, we established a computational pipeline by combining positive screening and negative screening. We used this pipeline for the forward screening of multipurpose ligands that might inhibit ODC's activity, block ODC-OAZ1 interaction and enhance ODC non-functional dimerization. With a combination of different experimental assays, we identified three multipurpose ODC inhibitors. At last, we showed that one of these inhibitors is a promising drug candidate. This work demonstrated that our computational pipeline is useful for discovering multipurpose ODC inhibitors, and multipurpose inhibitors would be very valuable. Similar with ODC, there are a lot of proteins in human proteome that act as both enzymes and PPI components. Therefore, this work is not only presenting new molecular tools for polyamine study, but also providing potential insights and protocols for discovering multipurpose inhibitors to target more important protein targets.
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Affiliation(s)
- Xiaoying Chai
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China.,Hubei Key Laboratory of Industrial Microbiology, Institute of Biomedical and Pharmaceutical Sciences, Hubei University of Technology, Wuhan, China
| | - Jingqiong Zhan
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China.,Department of Gynecology and Obstetrics, The First People's Hospital of Yichang, Yichang, China
| | - Jing Pan
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China
| | - Mengxi He
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China
| | - Bo Li
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China
| | - Jing Wang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China
| | - Hongyan Ma
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China
| | - Yanlin Wang
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China
| | - Sen Liu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, The People's Hospital of China Three Gorges University, Yichang, China.,Hubei Key Laboratory of Industrial Microbiology, Institute of Biomedical and Pharmaceutical Sciences, Hubei University of Technology, Wuhan, China
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31
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Muthukumaran S, Sulochana KN, Umashankar V. Structure based design of inhibitory peptides targeting ornithine decarboxylase dimeric interface and in vitro validation in human retinoblastoma Y79 cells. J Biomol Struct Dyn 2020; 39:5261-5275. [PMID: 32597331 DOI: 10.1080/07391102.2020.1785331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Polyamine synthesis in human cells is initiated by catalytic action of Ornithine decarboxylase (ODC) on Ornithine. Elevated levels of polyamines are manifested proliferating cancer cells and are found to promote tumour cell adhesion. Di-flouro methyl orninthine is a known inhibitor of ODC, however its usage is limited due its low affinity quick clearance and incompetent cellular uptake, thus posing a need for potential inhibitors. Currently, peptides are substituting drugs, as these are highly selective, specific and potent. Hence, in this study, the interacting interfaces of native homodimeric form of ODC and its heterodimer with Antizyme were probed to design inhibitory peptides targeting ODC. The designed peptides were validated for structural fitness by extensive molecular dynamics simulations and Circular dichroism studies. Finally, these peptides were validated in Y79 retinoblastoma cells for impact on ODC activity, cytotoxicity cell cycle and cell adhesion. On collective analysis, Peptide3 (Pep 3) and Peptide4 (Pep 4) were found to be potentially targeting ODC, as these peptides showed significant decrease in intracellular polyamine levels, cell adhesion and cell cycle perturbation in Y79 cells. Thus, Pep 3 and Pep 4 shall be favourably considered as therapeutic agents for targeting ODC mediated proliferation in retinoblastoma.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sivashanmugam Muthukumaran
- Centre for Bioinformatics, Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology, Vision Research Foundation, Chennai, India.,School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
| | - K N Sulochana
- R.S. Mehta Jain Department of Biochemistry and Cell Biology, Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology, Vision Research Foundation, Chennai, India
| | - Vetrivel Umashankar
- Centre for Bioinformatics, Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology, Vision Research Foundation, Chennai, India.,National Institute of Traditional Medicine, Indian Council of Medical Research, Department of Health Research (Govt. of India), Belagavi, India
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32
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Critical Factors in Human Antizymes that Determine the Differential Binding, Inhibition, and Degradation of Human Ornithine Decarboxylase. Biomolecules 2019; 9:biom9120864. [PMID: 31842334 PMCID: PMC6995573 DOI: 10.3390/biom9120864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/05/2019] [Accepted: 12/10/2019] [Indexed: 02/04/2023] Open
Abstract
Antizyme (AZ) is a protein that negatively regulates ornithine decarboxylase (ODC). AZ achieves this inhibition by binding to ODC to produce AZ-ODC heterodimers, abolishing enzyme activity and targeting ODC for degradation by the 26S proteasome. In this study, we focused on the biomolecular interactions between the C-terminal domain of AZ (AZ95–228) and ODC to identify the functional elements of AZ that are essential for binding, inhibiting and degrading ODC, and we also identified the crucial factors governing the differential binding and inhibition ability of AZ isoforms toward ODC. Based on the ODC inhibition and AZ-ODC binding studies, we demonstrated that amino acid residues reside within the α1 helix, β5 and β6 strands, and connecting loop between β6 and α2 (residues 142–178), which is the posterior part of AZ95–228, play crucial roles in ODC binding and inhibition. We also identified the essential elements determining the ODC-degradative activity of AZ; amino acid residues within the anterior part of AZ95–228 (residues 120–145) play crucial roles in AZ-mediated ODC degradation. Finally, we identified the crucial factors that govern the differential binding and inhibition of AZ isoforms toward ODC. Mutagenesis studies of AZ1 and AZ3 and their binding and inhibition revealed that the divergence of amino acid residues 124, 150, 166, 171, and 179 results in the differential abilities of AZ1 and AZ3 in the binding and inhibition of ODC.
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33
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Padella A, Simonetti G, Paciello G, Giotopoulos G, Baldazzi C, Righi S, Ghetti M, Stengel A, Guadagnuolo V, De Tommaso R, Papayannidis C, Robustelli V, Franchini E, Ghelli Luserna di Rorà A, Ferrari A, Fontana MC, Bruno S, Ottaviani E, Soverini S, Storlazzi CT, Haferlach C, Sabattini E, Testoni N, Iacobucci I, Huntly BJP, Ficarra E, Martinelli G. Novel and Rare Fusion Transcripts Involving Transcription Factors and Tumor Suppressor Genes in Acute Myeloid Leukemia. Cancers (Basel) 2019; 11:E1951. [PMID: 31817495 PMCID: PMC6966504 DOI: 10.3390/cancers11121951] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/15/2019] [Accepted: 12/02/2019] [Indexed: 02/07/2023] Open
Abstract
Approximately 18% of acute myeloid leukemia (AML) cases express a fusion transcript. However, few fusions are recurrent across AML and the identification of these rare chimeras is of interest to characterize AML patients. Here, we studied the transcriptome of 8 adult AML patients with poorly described chromosomal translocation(s), with the aim of identifying novel and rare fusion transcripts. We integrated RNA-sequencing data with multiple approaches including computational analysis, Sanger sequencing, fluorescence in situ hybridization and in vitro studies to assess the oncogenic potential of the ZEB2-BCL11B chimera. We detected 7 different fusions with partner genes involving transcription factors (OAZ-MAFK, ZEB2-BCL11B), tumor suppressors (SAV1-GYPB, PUF60-TYW1, CNOT2-WT1) and rearrangements associated with the loss of NF1 (CPD-PXT1, UTP6-CRLF3). Notably, ZEB2-BCL11B rearrangements co-occurred with FLT3 mutations and were associated with a poorly differentiated or mixed phenotype leukemia. Although the fusion alone did not transform murine c-Kit+ bone marrow cells, 45.4% of 14q32 non-rearranged AML cases were also BCL11B-positive, suggesting a more general and complex mechanism of leukemogenesis associated with BCL11B expression. Overall, by combining different approaches, we described rare fusion events contributing to the complexity of AML and we linked the expression of some chimeras to genomic alterations hitting known genes in AML.
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Affiliation(s)
- Antonella Padella
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Giorgia Simonetti
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola (FC), Italy; (G.S.); (M.G.); (E.F.); (A.G.L.d.R.); (A.F.)
| | - Giulia Paciello
- Department of Control and Computer Engineering DAUIN, Politecnico di Torino, 10129 Turin, Italy; (G.P.); (E.F.)
| | - George Giotopoulos
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 1TN, UK; (G.G.); (B.J.P.H.)
- Department of Haematology, Cambridge Institute for Medical Research and Addenbrooke’s Hospital, University of Cambridge, Cambridge CB2 0XY, UK
| | - Carmen Baldazzi
- Institute of Hematology “L. and A. Seràgnoli”, Sant’Orsola-Malpighi University Hospital, 40138 Bologna, Italy;
| | - Simona Righi
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Martina Ghetti
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola (FC), Italy; (G.S.); (M.G.); (E.F.); (A.G.L.d.R.); (A.F.)
| | - Anna Stengel
- MLL-Munich Leukemia Laboratory, 81377 Munich, Germany; (A.S.); (C.H.)
| | - Viviana Guadagnuolo
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Rossella De Tommaso
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Cristina Papayannidis
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Valentina Robustelli
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Eugenia Franchini
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola (FC), Italy; (G.S.); (M.G.); (E.F.); (A.G.L.d.R.); (A.F.)
| | - Andrea Ghelli Luserna di Rorà
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola (FC), Italy; (G.S.); (M.G.); (E.F.); (A.G.L.d.R.); (A.F.)
| | - Anna Ferrari
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola (FC), Italy; (G.S.); (M.G.); (E.F.); (A.G.L.d.R.); (A.F.)
| | - Maria Chiara Fontana
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Samantha Bruno
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Emanuela Ottaviani
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Simona Soverini
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | | | - Claudia Haferlach
- MLL-Munich Leukemia Laboratory, 81377 Munich, Germany; (A.S.); (C.H.)
| | - Elena Sabattini
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Nicoletta Testoni
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40138 Bologna, Italy; (A.P.); (S.R.); (V.G.); (R.D.T.); (C.P.); (V.R.); (M.C.F.); (S.B.); (E.O.); (S.S.); (E.S.); (N.T.)
| | - Ilaria Iacobucci
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA;
| | - Brian J. P. Huntly
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge CB2 1TN, UK; (G.G.); (B.J.P.H.)
- Department of Haematology, Cambridge Institute for Medical Research and Addenbrooke’s Hospital, University of Cambridge, Cambridge CB2 0XY, UK
| | - Elisa Ficarra
- Department of Control and Computer Engineering DAUIN, Politecnico di Torino, 10129 Turin, Italy; (G.P.); (E.F.)
| | - Giovanni Martinelli
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola (FC), Italy; (G.S.); (M.G.); (E.F.); (A.G.L.d.R.); (A.F.)
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Chen CH, Wang YH, Tsai SF, Yu TM, Chen SY, Tsai FJ. Antizyme inhibitor 1 genetic polymorphisms associated with diabetic patients validated in the livers of diabetic mice. Exp Ther Med 2019; 18:3139-3146. [PMID: 31572554 DOI: 10.3892/etm.2019.7919] [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: 10/31/2018] [Accepted: 06/06/2019] [Indexed: 11/05/2022] Open
Abstract
Diabetes mellitus (DM) is a complex disease caused by absolute or relative insulin deficiency. The C57BLKsJ-db/db mouse model is a useful animal model for studying type 2 DM (T2DM). The present study investigated the association between an antizyme inhibitor 1 (AZIN1) gene polymorphism (rs1062048) and T2DM susceptibility in 2,270 Taiwanese individuals (570 patients with T2DM and 1,700 controls). Additionally, the present study investigated AZIN1 gene and protein expression in the liver tissues of mice in three age groups (4, 16 and 32 weeks) through reverse transcription-quantitative PCR, western blotting and immunohistochemistry. The data indicated that the genotype frequency distribution of the rs1062048 single-nucleotide polymorphism differed significantly between the patients with T2DM and controls (P<0.05). Furthermore, gene and protein expression levels of AZIN1 were significantly lower in early stage and late stage T2DM mouse liver samples than in control samples. Overall, the data suggested that AZIN1 expression is involved in T2DM development.
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Affiliation(s)
- Cheng-Hsu Chen
- Department of Medical Research, Division of Basic Medical Sciences, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C.,Department of Internal Medicine, Division of Nephrology, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C.,Department of Life Science, Tunghai University, Taichung 40705, Taiwan, R.O.C.,School of Medicine, China Medical University, Taichung 40402, Taiwan, R.O.C
| | - Yeh-Han Wang
- Department of Anatomical Pathology, Taipei Institute of Pathology, School of Medicine, National Yang-Ming University, 11221 Taipei, Taiwan, R.O.C
| | - Shang-Feng Tsai
- Department of Internal Medicine, Division of Nephrology, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C.,Department of Life Science, Tunghai University, Taichung 40705, Taiwan, R.O.C.,Department of Internal Medicine, School of Medicine, National Yang-Ming University, 11221 Taipei, Taiwan, R.O.C
| | - Tung-Min Yu
- Department of Internal Medicine, Division of Nephrology, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C.,School of Medicine, China Medical University, Taichung 40402, Taiwan, R.O.C
| | - Shih-Yin Chen
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan, R.O.C.,Genetics Center, Medical Research, China Medical University Hospital, Taichung 40447, Taiwan, R.O.C
| | - Fuu-Jen Tsai
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan, R.O.C.,Genetics Center, Medical Research, China Medical University Hospital, Taichung 40447, Taiwan, R.O.C.,Department of Medical Genetics, China Medical University Hospital, Taichung 40447, Taiwan, R.O.C
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35
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Sánchez-Jiménez F, Medina MÁ, Villalobos-Rueda L, Urdiales JL. Polyamines in mammalian pathophysiology. Cell Mol Life Sci 2019; 76:3987-4008. [PMID: 31227845 PMCID: PMC11105599 DOI: 10.1007/s00018-019-03196-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/11/2019] [Accepted: 06/14/2019] [Indexed: 02/07/2023]
Abstract
Polyamines (PAs) are essential organic polycations for cell viability along the whole phylogenetic scale. In mammals, they are involved in the most important physiological processes: cell proliferation and viability, nutrition, fertility, as well as nervous and immune systems. Consequently, altered polyamine metabolism is involved in a series of pathologies. Due to their pathophysiological importance, PA metabolism has evolved to be a very robust metabolic module, interconnected with the other essential metabolic modules for gene expression and cell proliferation/differentiation. Two different PA sources exist for animals: PA coming from diet and endogenous synthesis. In the first section of this work, the molecular characteristics of PAs are presented as determinant of their roles in living organisms. In a second section, the metabolic specificities of mammalian PA metabolism are reviewed, as well as some obscure aspects on it. This second section includes information on mammalian cell/tissue-dependent PA-related gene expression and information on crosstalk with the other mammalian metabolic modules. The third section presents a synthesis of the physiological processes described as modulated by PAs in humans and/or experimental animal models, the molecular bases of these regulatory mechanisms known so far, as well as the most important gaps of information, which explain why knowledge around the specific roles of PAs in human physiology is still considered a "mysterious" subject. In spite of its robustness, PA metabolism can be altered under different exogenous and/or endogenous circumstances so leading to the loss of homeostasis and, therefore, to the promotion of a pathology. The available information will be summarized in the fourth section of this review. The different sections of this review also point out the lesser-known aspects of the topic. Finally, future prospects to advance on these still obscure gaps of knowledge on the roles on PAs on human physiopathology are discussed.
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Affiliation(s)
- Francisca Sánchez-Jiménez
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Andalucía Tech, and IBIMA (Biomedical Research Institute of Málaga), Málaga, Spain
- UNIT 741, CIBER de Enfermedades Raras (CIBERER), 29071, Málaga, Spain
| | - Miguel Ángel Medina
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Andalucía Tech, and IBIMA (Biomedical Research Institute of Málaga), Málaga, Spain
- UNIT 741, CIBER de Enfermedades Raras (CIBERER), 29071, Málaga, Spain
| | - Lorena Villalobos-Rueda
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Andalucía Tech, and IBIMA (Biomedical Research Institute of Málaga), Málaga, Spain
| | - José Luis Urdiales
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Andalucía Tech, and IBIMA (Biomedical Research Institute of Málaga), Málaga, Spain.
- UNIT 741, CIBER de Enfermedades Raras (CIBERER), 29071, Málaga, Spain.
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36
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Lambertos A, Peñafiel R. Polyamine biosynthesis in Xenopus laevis: the xlAZIN2/xlODC2 gene encodes a lysine/ornithine decarboxylase. PLoS One 2019; 14:e0218500. [PMID: 31509528 PMCID: PMC6738921 DOI: 10.1371/journal.pone.0218500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/26/2019] [Indexed: 11/29/2022] Open
Abstract
Ornithine decarboxylase (ODC) is a key enzyme in the biosynthesis of polyamines, organic cations that are implicated in many cellular processes. The enzyme is regulated at the post-translational level by an unusual system that includes antizymes (AZs) and antizyme inhibitors (AZINs). Most studies on this complex regulatory mechanism have been focused on human and rodent cells, showing that AZINs (AZIN1 and AZIN2) are homologues of ODC but devoid of enzymatic activity. Little is known about Xenopus ODC and its paralogues, in spite of the relevance of Xenopus as a model organism for biomedical research. We have used the information existing in different genomic databases to compare the functional properties of the amphibian ODC1, AZIN1 and AZIN2/ODC2, by means of transient transfection experiments of HEK293T cells. Whereas the properties of xlODC1 and xlAZIN1 were similar to those reported for their mammalian orthologues, the former catalyzing the decarboxylation of L-ornithine preferentially to that of L-lysine, xlAZIN2/xlODC2 showed important differences with respect to human and mouse AZIN2. xlAZIN2 did not behave as an antizyme inhibitor, but it rather acts as an authentic decarboxylase forming cadaverine, due to its higher affinity to L-lysine than to L-ornithine as substrate; so, in accordance with this, it should be named as lysine decarboxylase (LDC) or lysine/ornithine decarboxylase (LODC). In addition, AZ1 stimulated the degradation of xlAZIN2 by the proteasome, but the removal of the 21 amino acid C-terminal tail, with a sequence quite different to that of mouse or human ODC, made the protein resistant to degradation. Collectively, our results indicate that in Xenopus there is only one antizyme inhibitor (xlAZIN1) and two decarboxylases, xlODC1 and xlLDC, with clear preferences for L-ornithine and L-lysine, respectively.
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Affiliation(s)
- Ana Lambertos
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Rafael Peñafiel
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
- Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
- * E-mail:
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37
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Tomita T, Matouschek A. Substrate selection by the proteasome through initiation regions. Protein Sci 2019; 28:1222-1232. [PMID: 31074920 DOI: 10.1002/pro.3642] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/03/2019] [Accepted: 05/06/2019] [Indexed: 01/04/2023]
Abstract
Proteins in the cell have to be eliminated once their function is no longer desired or they become damaged. Most regulated protein degradation is achieved by a large enzymatic complex called the proteasome. Many proteasome substrates are targeted for degradation by the covalent attachment of ubiquitin molecules. Ubiquitinated proteins can be bound by the proteasome, but for proteolysis to occur the proteasome needs to find a disordered tail somewhere in the target at which it initiates degradation. The initiation step contributes to the specificity of proteasomal degradation. Here, we review how the proteasome selects initiation sites within its substrates and discuss how the initiation step affects physiological processes.
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Affiliation(s)
- Takuya Tomita
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, 78712
| | - Andreas Matouschek
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, 78712
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Song J, Shan Z, Mao J, Teng W. Serum polyamine metabolic profile in autoimmune thyroid disease patients. Clin Endocrinol (Oxf) 2019; 90:727-736. [PMID: 30725486 DOI: 10.1111/cen.13946] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 01/21/2019] [Accepted: 02/03/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Polyamines are indispensable polycations and play important physiological roles in living cells. Some polyamine metabolites have been associated with autoimmune disorders. The aims of this study were to profile polyamine metabolites in autoimmune thyroid disease (AITD) and predict whether polyamine metabolites are associated with thyroid hormone, thyroid autoantibodies or disease progression. DESIGN, PATIENTS AND MEASUREMENTS A total of 136 participants were recruited, including Graves' disease (GD) (n = 36), Hashimoto's thyroiditis (HT) (n = 33) and thyroid autoantibody-positive (pTAb) (n = 29) patients and 38 age- and sex-matched healthy controls (HCs). Fourteen polyamine metabolites, including polyamine precursors, polyamines and polyamine catabolite, were measured by UFLC-MS/MS RESULTS: Both GD and HT patients had higher L-arginine, L-ornithine, lysine and agmatine levels and lower putrescine, 1,3-diaminopropane, spermine, N-acetylputrescine levels than HCs. Some polyamine metabolite levels were different only in GD or HT patients compared to HCs: GD patients had significantly higher spermidine, N-acetylspermidine and γ-aminobutyric acid and lower cadaverine, whereas HT patients had significantly decreased N-acetylspermine. Only spermine and N-acetylspermine were significantly lower in pTAb than HCs. The spermine:spermidine ratio was significantly reduced in all AITD patients. In addition, spermine was negatively correlated with thyroid-specific antibodies grade. N-acetylspermidine might be a risk factor for pTAb progression to overt hypothyroidism. CONCLUSIONS Compared with the HCs, most metabolites of GD and HT showed similar patterns, suggesting the possibility of a common pathophysiological basis or metabolic pathway. Moreover, pTAb progression to overt hypothyroidism may be related to high N-acetylspermidine. Thyroid autoimmunity was associated with low spermine.
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Affiliation(s)
- Jing Song
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, China Medical University, Shenyang, China
| | - Zhongyan Shan
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, China Medical University, Shenyang, China
| | - Jinyuan Mao
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, China Medical University, Shenyang, China
| | - Weiping Teng
- Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Hospital of China Medical University, China Medical University, Shenyang, China
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39
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Ghalali A, Rice JM, Kusztos A, Jernigan FE, Zetter BR, Rogers MS. Developing a novel FRET assay, targeting the binding between Antizyme-AZIN. Sci Rep 2019; 9:4632. [PMID: 30874587 PMCID: PMC6420652 DOI: 10.1038/s41598-019-40929-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 02/22/2019] [Indexed: 11/17/2022] Open
Abstract
Antizyme inhibitor (AZIN) stimulates cell proliferation by binding to and sequestering the cell cycle suppressor antizyme. Despite the important role of the antizyme-AZIN protein-protein interaction (PPI) in cell cycle regulation, there are no assays for directly measuring the binding of AZIN to antizyme that are amenable to high throughput screening. To address this problem, we developed and validated a novel antizyme-AZIN intramolecular FRET sensor using clover and mRuby2 fluorescent proteins. By introducing alanine mutations in the AZIN protein, we used this sensor to probe the PPI for key residues governing the binding interaction. We found that like many PPIs, the energy of the antizyme-AZIN binding interaction is distributed across many amino acid residues; mutation of individual residues did not have a significant effect on disrupting the PPI. We also examined the interaction between Clover-AZIN and antizyme-mRuby2 in cells. Evidence of a direct interaction between Clover-AZIN and antizyme-mRuby2 was observed within cells, validating the use of this FRET sensor for probing intracellular antizyme-AZIN PPI. In conclusion, we have developed and optimized a FRET sensor which can be adapted for high throughput screening of either in vitro or intracellular activity.
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Affiliation(s)
- Aram Ghalali
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - James M Rice
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.,Silicon Therapeutics, Boston, MA, USA
| | - Amanda Kusztos
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.,Department of Infectious Disease, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Finith E Jernigan
- Center for Drug Discovery and Translational Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.,Silicon Therapeutics, Boston, MA, USA
| | - Bruce R Zetter
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael S Rogers
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
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40
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Ma Y, Xu J, Huang P, Bai X, Gao H. Ubiquitin-independent, Proteasome-mediated targeted degradation of KRAS in pancreatic adenocarcinoma cells using an engineered ornithine decarboxylase/antizyme system. IUBMB Life 2019; 71:57-65. [PMID: 30347501 PMCID: PMC7379993 DOI: 10.1002/iub.1945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 08/06/2018] [Indexed: 12/21/2022]
Abstract
The oncogene KRAS not only promotes the tumorigenesis of pancreatic cancers but also is required for the malignant progression and metastasis of these cancers. Many methods have been explored to influence the malignant biological behavior of these cancers by targeting mutant KRAS. The ornithine decarboxylase/antizyme (ODC/AZ) system is another protein degradation pathway that exists in nature. The formation of an ODC and protein substrate complex through direct combination can promote its degradation by the 26S proteasome without ubiquitination, and this process can be catalyzed by AZ. In this study, we designed and reconstructed a chimeric fusion protein (named RC-ODC). The engineered fusion protein RC-ODC was confirmed to interact with the mutant KRAS oncoprotein in a co-immunoprecipitation assay, and the introduction of both RC-ODC and AZ resulted in degradation of the exogenous and endogenous mutant KRAS oncoprotein at the post-translational level independent of ubiquitination in vitro. Along with a decreased KRAS level, suppression of PANC-1 cell proliferation was detected in vitro and in vivo, and meanwhile downregulation of phosphorylated extracellular signal-regulated kinase 1/2 (ERK1/2) was also observed. Targeted degradation of the KRAS oncoprotein through the ODC/AZ pathway at the post-translational level may reflect a more effective future therapeutic strategy for pancreatic cancer patients. © 2018 The Authors. IUBMB Life published by Wiley Periodicals,Inc. on behalf of International Union of Biochemistry and Molecular Biology, 71(1):57-65, 2019.
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Affiliation(s)
- Yihui Ma
- Department of PathologyZhengzhou University1st Affiliated Hospital, ZhengzhouChina
| | - Jingjing Xu
- Department of PathologyZhengzhou University1st Affiliated Hospital, ZhengzhouChina
| | - Pei Huang
- Department of PathologyZhengzhou University1st Affiliated Hospital, ZhengzhouChina
| | - Xue Bai
- Department of PathologyZhengzhou University1st Affiliated Hospital, ZhengzhouChina
| | - Hanqing Gao
- Department of PathologyZhengzhou University1st Affiliated Hospital, ZhengzhouChina
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41
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Abstract
Advances in our understanding of the metabolism and molecular functions of polyamines and their alterations in cancer have led to resurgence in the interest of targeting polyamine metabolism as an anticancer strategy. Increasing knowledge of the interplay between polyamine metabolism and other cancer-driving pathways, including the PTEN-PI3K-mTOR complex 1 (mTORC1), WNT signalling and RAS pathways, suggests potential combination therapies that will have considerable clinical promise. Additionally, an expanding number of promising clinical trials with agents targeting polyamines for both therapy and prevention are ongoing. New insights into molecular mechanisms linking dysregulated polyamine catabolism and carcinogenesis suggest additional strategies that can be used for cancer prevention in at-risk individuals. In addition, polyamine blocking therapy, a strategy that combines the inhibition of polyamine biosynthesis with the simultaneous blockade of polyamine transport, can be more effective than therapies based on polyamine depletion alone and may involve an antitumour immune response. These findings open up new avenues of research into exploiting aberrant polyamine metabolism for anticancer therapy.
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Affiliation(s)
- Robert A Casero
- Department of Oncology, Johns Hopkins University School of Medicine and the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.
| | - Tracy Murray Stewart
- Department of Oncology, Johns Hopkins University School of Medicine and the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Anthony E Pegg
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA, USA
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42
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Abstract
The polyamines spermidine, spermine, and their precursor putrescine are organic polycations involved in various cellular processes and are absolutely essential for cellular proliferation. Because of their crucial function in the cell, their intracellular concentration must be maintained at optimal levels. To a large extent, this regulation is achieved through the activity of an autoregulatory loop that involves two proteins, antizyme (Az) and antizyme inhibitor (AzI), that regulate the first enzyme in polyamine biosynthesis, ornithine decarboxylase (ODC), and polyamine uptake activity in response to intracellular polyamine levels. In this Minireview, I will discuss what has been learned about the mechanism of Az expression and its physical interaction with both ODC and AzI in the regulation of polyamines.
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Affiliation(s)
- Chaim Kahana
- From the Department of Molecular Genetics, the Weizmann Institute of Science, Rehovot 76100, Israel
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43
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Ramos-Molina B, Lambertos A, Peñafiel R. Antizyme Inhibitors in Polyamine Metabolism and Beyond: Physiopathological Implications. ACTA ACUST UNITED AC 2018; 6:medsci6040089. [PMID: 30304856 PMCID: PMC6313458 DOI: 10.3390/medsci6040089] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 12/25/2022]
Abstract
The intracellular levels of polyamines, cationic molecules involved in a myriad of cellular functions ranging from cellular growth, differentiation and apoptosis, is precisely regulated by antizymes and antizyme inhibitors via the modulation of the polyamine biosynthetic and transport systems. Antizymes, which are mainly activated upon high polyamine levels, inhibit ornithine decarboxylase (ODC), the key enzyme of the polyamine biosynthetic route, and exert a negative control of polyamine intake. Antizyme inhibitors (AZINs), which are proteins highly homologous to ODC, selectively interact with antizymes, preventing their action on ODC and the polyamine transport system. In this review, we will update the recent advances on the structural, cellular and physiological functions of AZINs, with particular emphasis on the action of these proteins in the regulation of polyamine metabolism. In addition, we will describe emerging evidence that suggests that AZINs may also have polyamine-independent effects on cells. Finally, we will discuss how the dysregulation of AZIN activity has been implicated in certain human pathologies such as cancer, fibrosis or neurodegenerative diseases.
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Affiliation(s)
- Bruno Ramos-Molina
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain.
- Laboratory of Cellular and Molecular Endocrinology, Institute of Biomedical Research in Malaga (IBIMA), Virgen de la Victoria University Hospital, 29010 Málaga, Spain.
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain.
| | - Ana Lambertos
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain.
- Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain.
| | - Rafael Peñafiel
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain.
- Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain.
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44
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Bupp CP, Schultz CR, Uhl KL, Rajasekaran S, Bachmann AS. Novel de novo pathogenic variant in the ODC1 gene in a girl with developmental delay, alopecia, and dysmorphic features. Am J Med Genet A 2018; 176:2548-2553. [PMID: 30239107 DOI: 10.1002/ajmg.a.40523] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/03/2018] [Accepted: 08/04/2018] [Indexed: 11/09/2022]
Abstract
The ornithine decarboxylase 1 (ODC1) gene plays an important role in physiological and cell developmental processes including embryogenesis, organogenesis, and neoplastic cell growth. Here, we report an 32-month-old Caucasian female with a heterozygous de novo nonsense mutation in the ODC1 gene that leads to a premature abrogation of 14-aa residues at the ODC protein c-terminus. This is the first human case confirming similar symptoms observed in a transgenic ODC1 mouse model first described over 20 years ago. Phenotypic manifestations include macrosomia, macrocephaly, developmental delay, alopecia, spasticity, hypotonia, cutaneous vascular malformation, delayed visual maturation, and sensorineural hearing loss. We here describe for the first time a new pediatric disorder that is directly linked to a de novo pathogenic variant in the ODC1 gene. The ODC1 gene mutation (c.1342 A>T) was identified by whole-exome sequencing and confirmed by Sanger sequencing. Red blood cells obtained from our patient showed elevated ODC protein and polyamine levels compared to healthy controls. Our autosomal dominant patient who carries this gain-of-function ODC1 mutation may benefit from treatment with α-difluoromethylornithine, a well-tolerated, U.S. Food and Drug Administration (FDA). FDA-approved drug.
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Affiliation(s)
- Caleb P Bupp
- Medical Genetics, Spectrum Health and Helen DeVos Children's Hospital, Grand Rapids, Michigan.,Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
| | - Chad R Schultz
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
| | - Katie L Uhl
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
| | - Surender Rajasekaran
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, Michigan.,Pediatric Critical Care Medicine, Helen DeVos Children's Hospital, Grand Rapids, Michigan
| | - André S Bachmann
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
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Ochocki JD, Khare S, Hess M, Ackerman D, Qiu B, Daisak JI, Worth AJ, Lin N, Lee P, Xie H, Li B, Wubbenhorst B, Maguire TG, Nathanson KL, Alwine JC, Blair IA, Nissim I, Keith B, Simon MC. Arginase 2 Suppresses Renal Carcinoma Progression via Biosynthetic Cofactor Pyridoxal Phosphate Depletion and Increased Polyamine Toxicity. Cell Metab 2018; 27:1263-1280.e6. [PMID: 29754953 PMCID: PMC5990482 DOI: 10.1016/j.cmet.2018.04.009] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 02/14/2018] [Accepted: 04/11/2018] [Indexed: 01/02/2023]
Abstract
Kidney cancer, one of the ten most prevalent malignancies in the world, has exhibited increased incidence over the last decade. The most common subtype is "clear cell" renal cell carcinoma (ccRCC), which features consistent metabolic abnormalities, such as highly elevated glycogen and lipid deposition. By integrating metabolomics, genomic, and transcriptomic data, we determined that enzymes in multiple metabolic pathways are universally depleted in human ccRCC tumors, which are otherwise genetically heterogeneous. Notably, the expression of key urea cycle enzymes, including arginase 2 (ARG2) and argininosuccinate synthase 1 (ASS1), is strongly repressed in ccRCC. Reduced ARG2 activity promotes ccRCC tumor growth through at least two distinct mechanisms: conserving the critical biosynthetic cofactor pyridoxal phosphate and avoiding toxic polyamine accumulation. Pharmacological approaches to restore urea cycle enzyme expression would greatly expand treatment strategies for ccRCC patients, where current therapies only benefit a subset of those afflicted with renal cancer.
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Affiliation(s)
- Joshua D Ochocki
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sanika Khare
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Markus Hess
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Daniel Ackerman
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Bo Qiu
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jennie I Daisak
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Andrew J Worth
- Department of Pharmacology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nan Lin
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Pearl Lee
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hong Xie
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Bo Li
- Program in Cancer Biology, Affiliated Guangzhou Women and Children's Hospital, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China; Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China
| | - Bradley Wubbenhorst
- Department of Medicine, Division of Translational Medicine and Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Tobi G Maguire
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Katherine L Nathanson
- Department of Medicine, Division of Translational Medicine and Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - James C Alwine
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ian A Blair
- Department of Pharmacology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Itzhak Nissim
- Division of Genetics and Metabolism, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Pediatrics, Biochemistry, and Biophysics, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Brian Keith
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - M Celeste Simon
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA 19104, USA.
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46
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Sivashanmugam M, K N S, V U. Virtual screening of natural inhibitors targeting ornithine decarboxylase with pharmacophore scaffolding of DFMO and validation by molecular dynamics simulation studies. J Biomol Struct Dyn 2018; 37:766-780. [PMID: 29436980 DOI: 10.1080/07391102.2018.1439772] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Ornithine decarboxylase (ODC) is an enzyme that initiates polyamine synthesis in human. Polyamines play key roles in cell-cell adhesion, cell motility and cell cycle regulation. Higher synthesis of polyamines also occurs in rapidly proliferating cancer cells are mediated by ODC. As per earlier studies, di-flouro-methyl-orninthine (DFMO) is a proven efficient inhibitor ODC targeting the catalytic activity, however, its usage is limited due to side effects. Targeting ODC is considered as a potential therapeutic modality in the treatment of cancer. In this study, it is attempted to use DFMO scaffold to build a ligand-based pharmocophore query using MOE to screen similar active compounds from Universal Natural Products Database with better ADMET properties. The identified compounds were virtually screened against the active cavity of ODC using Glide. Further, potential natural hits targeting ODC were shortlisted based on Molecular Mechanics/Generalized-Born/Surface Area (MM-GBSA) score. Finally, molecular dynamics simulations were performed for the natural molecule hit and DFMO in complex with ODC using Desmond. Among the hits shortlisted, 2-amino-5, 9, 13, 17-tetramethyloctadeca-8, 16-diene-1, 3, 14-triol (UNPD208110) was found to be highly potential, as it showed a higher binding affinity in terms of interactions with key active cavity residues, and also showed better ADMET property, HUMO-LUMO gap energy and more stable complex formation with ODC compared to DFMO. Hence, the proposed molecule (UNPD208110) shall be favourably considered as a potential natural inhibitor targeting ODC-mediated disease conditions.
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Affiliation(s)
- Muthukumaran Sivashanmugam
- a Centre for Bioinformatics , Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology, Vision Research Foundation , Chennai , India.,b School of Chemical and Biotechnology , SASTRA University , Thanjavur , India
| | - Sulochana K N
- c R.S. Mehta Jain Department of Biochemistry and Cell Biology , Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology, Vision Research Foundation , Chennai , India
| | - Umashankar V
- a Centre for Bioinformatics , Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology, Vision Research Foundation , Chennai , India
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Lambertos A, Ramos-Molina B, Cerezo D, López-Contreras AJ, Peñafiel R. The mouse Gm853 gene encodes a novel enzyme: Leucine decarboxylase. Biochim Biophys Acta Gen Subj 2017; 1862:365-376. [PMID: 29108956 DOI: 10.1016/j.bbagen.2017.11.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/31/2017] [Accepted: 11/02/2017] [Indexed: 12/18/2022]
Abstract
Ornithine decarboxylase (ODC) is a key enzyme in the biosynthesis of polyamines. ODC-antizyme inhibitors (AZINs) are homologous proteins of ODC, devoid of enzymatic activity but acting as regulators of polyamine levels. The last paralogue gene recently incorporated into the ODC/AZINs family is the murine Gm853, which is located in the same chromosome as AZIN2, and whose biochemical function is still unknown. By means of transfection assays of HEK293T cells with a plasmid containing the coding region of Gm853, we show here that unlike ODC, GM853 was a stable protein that was not able to decarboxylate l-ornithine or l-lysine and that did not act as an antizyme inhibitor. However, GM853 showed leucine decarboxylase activity, an enzymatic activity never described in animal cells, and by acting on l-leucine (Km=7.03×10-3M) it produced isopentylamine, an aliphatic monoamine with unknown function. The other physiological branched-chain amino acids, l-valine and l-isoleucine were poor substrates of the enzyme. Gm853 expression was mainly detected in the kidney, and as Odc, it was stimulated by testosterone. The conservation of Gm853 orthologues in different mammalian species, including primates, underlines the possible biological significance of this new enzyme. In this study, we describe for the first time a mammalian enzyme with leucine decarboxylase activity, therefore proposing that the gene Gm853 and its protein product should be named as leucine decarboxylase (Ldc, LDC).
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Affiliation(s)
- Ana Lambertos
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Spain; Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain
| | - Bruno Ramos-Molina
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Spain
| | - David Cerezo
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Spain
| | - Andrés J López-Contreras
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Spain
| | - Rafael Peñafiel
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Spain; Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain.
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48
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Small molecule promotes β-catenin citrullination and inhibits Wnt signaling in cancer. Nat Chem Biol 2017; 14:94-101. [PMID: 29083417 DOI: 10.1038/nchembio.2510] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/02/2017] [Indexed: 01/27/2023]
Abstract
Wnt (wingless)/β-catenin signaling is critical for tumor progression and is frequently activated in colorectal cancer as a result of the mutation of adenomatous polyposis coli (APC); however, therapeutic agents targeting this pathway for clinical use are lacking. Here we report that nitazoxanide (NTZ), a clinically approved antiparasitic drug, efficiently inhibits Wnt signaling independent of APC. Using chemoproteomic approaches, we have identified peptidyl arginine deiminase 2 (PAD2) as the functional target of NTZ in Wnt inhibition. By targeting PAD2, NTZ increased the deamination (citrullination) and turnover of β-catenin in colon cancer cells. Replacement of arginine residues disrupted the transcriptional activity, and NTZ induced degradation of β-catenin. In Wnt-activated colon cancer cells, knockout of either PAD2 or β-catenin substantially increased resistance to NTZ treatment. Our data highlight the potential of NTZ as a modulator of β-catenin citrullination for the treatment of cancer patients with Wnt pathway mutations.
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49
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Maiti P, Manna J, Dunbar GL. Current understanding of the molecular mechanisms in Parkinson's disease: Targets for potential treatments. Transl Neurodegener 2017; 6:28. [PMID: 29090092 PMCID: PMC5655877 DOI: 10.1186/s40035-017-0099-z] [Citation(s) in RCA: 297] [Impact Index Per Article: 42.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 10/09/2017] [Indexed: 12/21/2022] Open
Abstract
Gradual degeneration and loss of dopaminergic neurons in the substantia nigra, pars compacta and subsequent reduction of dopamine levels in striatum are associated with motor deficits that characterize Parkinson’s disease (PD). In addition, half of the PD patients also exhibit frontostriatal-mediated executive dysfunction, including deficits in attention, short-term working memory, speed of mental processing, and impulsivity. The most commonly used treatments for PD are only partially or transiently effective and are available or applicable to a minority of patients. Because, these therapies neither restore the lost or degenerated dopaminergic neurons, nor prevent or delay the disease progression, the need for more effective therapeutics is critical. In this review, we provide a comprehensive overview of the current understanding of the molecular signaling pathways involved in PD, particularly within the context of how genetic and environmental factors contribute to the initiation and progression of this disease. The involvement of molecular chaperones, autophagy-lysosomal pathways, and proteasome systems in PD are also highlighted. In addition, emerging therapies, including pharmacological manipulations, surgical procedures, stem cell transplantation, gene therapy, as well as complementary, supportive and rehabilitation therapies to prevent or delay the progression of this complex disease are reviewed.
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Affiliation(s)
- Panchanan Maiti
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mt. Pleasant, MI 48859 USA.,Program in Neuroscience, Mt. Pleasant, MI 48859 USA.,Department of Psychology, Central Michigan University, Mt. Pleasant, MI 48859 USA.,Field Neurosciences Institute, St. Mary's of Michigan, Saginaw, MI 48604 USA.,Department of Biology, Saginaw Valley State University, Saginaw, MI 48604 USA
| | - Jayeeta Manna
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38105 USA
| | - Gary L Dunbar
- Field Neurosciences Institute Laboratory for Restorative Neurology, Mt. Pleasant, MI 48859 USA.,Program in Neuroscience, Mt. Pleasant, MI 48859 USA.,Department of Psychology, Central Michigan University, Mt. Pleasant, MI 48859 USA.,Field Neurosciences Institute, St. Mary's of Michigan, Saginaw, MI 48604 USA
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50
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Tremiño L, Forcada-Nadal A, Contreras A, Rubio V. Studies on cyanobacterial protein PipY shed light on structure, potential functions, and vitamin B 6 -dependent epilepsy. FEBS Lett 2017; 591:3431-3442. [PMID: 28914444 DOI: 10.1002/1873-3468.12841] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 08/21/2017] [Accepted: 09/01/2017] [Indexed: 11/11/2022]
Abstract
The Synechococcus elongatus COG0325 gene pipY functionally interacts with the nitrogen regulatory gene pipX. As a first step toward a molecular understanding of such interactions, we characterized PipY. This 221-residue protein is monomeric and hosts pyridoxal phosphate (PLP), binding it with limited affinity and losing it upon incubation with D-cycloserine. PipY crystal structures with and without PLP reveal a single-domain monomer folded as the TIM barrel of type-III fold PLP enzymes, with PLP highly exposed, fitting a role for PipY in PLP homeostasis. The mobile PLP phosphate-anchoring C-terminal helix might act as a trigger for PLP exchange. Exploiting the universality of COG0325 functions, we used PipY in site-directed mutagenesis studies to shed light on disease causation by epilepsy-associated mutations in the human COG0325 gene PROSC.
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Affiliation(s)
- Lorena Tremiño
- Instituto de Biomedicina de Valencia (IBV-CSIC), CIBER de Enfermedades Raras (CIBERER-ISCIII), Valencia, Spain
| | - Alicia Forcada-Nadal
- Instituto de Biomedicina de Valencia (IBV-CSIC), CIBER de Enfermedades Raras (CIBERER-ISCIII), Valencia, Spain.,Departamento de Fisiología, Genética y Microbiología, Universidad de Alicante, Spain
| | - Asunción Contreras
- Departamento de Fisiología, Genética y Microbiología, Universidad de Alicante, Spain
| | - Vicente Rubio
- Instituto de Biomedicina de Valencia (IBV-CSIC), CIBER de Enfermedades Raras (CIBERER-ISCIII), Valencia, Spain
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