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Maria Redeker KE, Brockmöller J. Several orphan solute carriers functionally identified as organic cation transporters: substrates specificity compared with known cation transporters. J Biol Chem 2024:107629. [PMID: 39098524 DOI: 10.1016/j.jbc.2024.107629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/10/2024] [Accepted: 07/25/2024] [Indexed: 08/06/2024] Open
Abstract
Organic cations comprise a significant part of medically relevant drugs and endogenous substances. Such substances need organic cation transporters (OCT) for efficient transfer via cell membranes. However, the membrane transporters of most natural or synthetic organic cations the membrane transporters are still unknown. To identify these transporters, genes of 10 known OCTs and 18 orphan solute carriers (SLC) were overexpressed in HEK293 cells and characterized concerning their transport activities with a broad spectrum of low molecular weight substances emphasizing organic cations. Several SLC35 transporters and SLC38A10 significantly enhanced the transport of numerous relatively hydrophobic organic cations. Significant organic cation transport activities have been found in gene families classified as transporters of other substance classes. For instance, SLC35G3 and SLC38A10 significantly accelerated the uptake of several cations, such as clonidine, 3,4-methylenedioxymethamphetamine, and nicotine, which are known as substrates of a thus far genetically unidentified proton/organic cation antiporter. The transporters SLC35G4 and SLC35F5 stood out by their significantly increased choline uptake, and several other SLC transported choline together with a broader spectrum of organic cations. Overall, there are many more polyspecific organic cation transporters than previously estimated. Several transporters had one predominant substrate but accepted some other cationic substrates, and others showed no particular preference for one substrate but transported several organic cations. The role of these transporters in biology and drug therapy remains to be elucidated.
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Affiliation(s)
- Kyra-Elisa Maria Redeker
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August-University Göttingen, D-37075 Göttingen, Germany.
| | - Jürgen Brockmöller
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August-University Göttingen, D-37075 Göttingen, Germany
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Lara MK, Chitre AS, Chen D, Johnson BB, Nguyen K, Cohen KA, Muckadam SA, Lin B, Ziegler S, Beeson A, Sanches TM, Solberg Woods LC, Polesskaya O, Palmer AA, Mitchell SH. Genome-wide association study of delay discounting in Heterogeneous Stock rats. GENES, BRAIN, AND BEHAVIOR 2024; 23:e12909. [PMID: 39119916 PMCID: PMC11310854 DOI: 10.1111/gbb.12909] [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: 12/18/2023] [Revised: 06/27/2024] [Accepted: 07/18/2024] [Indexed: 08/10/2024]
Abstract
Delay discounting refers to the behavioral tendency to devalue rewards as a function of their delay in receipt. Heightened delay discounting has been associated with substance use disorders and multiple co-occurring psychopathologies. Human and animal genetic studies have established that delay discounting is heritable, but only a few associated genes have been identified. We aimed to identify novel genetic loci associated with delay discounting through a genome-wide association study (GWAS) using Heterogeneous Stock (HS) rats, a genetically diverse outbred population derived from eight inbred founder strains. We assessed delay discounting in 650 male and female HS rats using an adjusting amount procedure in which rats chose between smaller immediate sucrose rewards or a larger reward at various delays. Preference switch points were calculated and both exponential and hyperbolic functions were fitted to these indifference points. Area under the curve (AUC) and the discounting parameter k of both functions were used as delay discounting measures. GWAS for AUC, exponential k, and one indifference point identified significant loci on chromosomes 20 and 14. The gene Slc35f1, which encodes a member of the solute carrier family, was the sole gene within the chromosome 20 locus. That locus also contained an eQTL for Slc35f1, suggesting that heritable differences in the expression might be responsible for the association with behavior. Adgrl3, which encodes a latrophilin subfamily G-protein coupled receptor, was the sole gene within the chromosome 14 locus. These findings implicate novel genes in delay discounting and highlight the need for further exploration.
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Affiliation(s)
- Montana Kay Lara
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Apurva S. Chitre
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Denghui Chen
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Benjamin B. Johnson
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Khai‐Minh Nguyen
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Katarina A. Cohen
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Sakina A. Muckadam
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Bonnie Lin
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Shae Ziegler
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Angela Beeson
- Department of Internal Medicine, Wake Forest School of MedicineWake Forest UniversityWinston‐SalemNorth CarolinaUSA
| | - Thiago M. Sanches
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Leah C. Solberg Woods
- Department of Internal Medicine, Wake Forest School of MedicineWake Forest UniversityWinston‐SalemNorth CarolinaUSA
| | - Oksana Polesskaya
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Abraham A. Palmer
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
- Institute for Genomic MedicineUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Suzanne H. Mitchell
- Department of Behavioral Neuroscience, Psychiatry, the Oregon Institute of Occupational Health SciencesOregon Health & Science UniversityPortlandOregonUSA
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3
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Wang XG, Shen MM, Lu J, Dou TC, Ma M, Guo J, Wang KH, Qu L. Genome-wide association analysis of eggshell color of an F2 generation population reveals candidate genes in chickens. Animal 2024; 18:101167. [PMID: 38762993 DOI: 10.1016/j.animal.2024.101167] [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: 10/26/2023] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 05/21/2024] Open
Abstract
Eggshell color is an important visual characteristic that affects consumer preferences for eggs. Eggshell color, which has moderate to high heritability, can be effectively enhanced through molecular marker selection. Various studies have been conducted on eggshell color at specific time points. However, few longitudinal data are available on eggshell color. Therefore, the objective of this study was to investigate eggshell color using the Commission International de L'Eclairage L*a*b* system with multiple measurements at different ages (age at the first egg and at 32, 36, 40, 44, 48, 52, 56, 60, 66, and 72 weeks) within the same individuals from an F2 resource population produced by crossing White Leghorn and Dongxiang Blue chicken. Using an Affymetrix 600 single nucleotide polymorphism (SNP) array, we estimated the genetic parameters of the eggshell color trait, performed genome-wide association studies (GWASs), and screened for the potential candidate genes. The results showed that pink-shelled eggs displayed a significant negative correlation between L* values and both a* and b* values. Genetic heritability based on SNPs showed that the heritability of L*, a*, and b* values ranged from 0.32 to 0.82 for pink-shelled eggs, indicating a moderate to high level of genetic control. The genetic correlations at each time point were mostly above 0.5. The major-effect regions affecting the pink eggshell color were identified in the 10.3-13.0 Mb interval on Gallus gallus chromosome 20, and candidate genes were selected, including SLC35C2, PCIF1, and SLC12A5. Minor effect polygenic regions were identified on chromosomes 1, 6, 9, 12, and 15, revealing 11 candidate genes, including MTMR3 and SLC35E4. Members of the solute carrier family play an important role in influencing eggshell color. Overall, our findings provide valuable insights into the phenotypic and genetic aspects underlying the variation in eggshell color. Using GWAS analysis, we identified multiple quantitative trait loci (QTLs) for pink eggshell color, including a major QTL on chromosome 20. Genetic variants associated with eggshell color may be used in genomic breeding programs.
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Affiliation(s)
- X G Wang
- Jiangsu Institute of Poultry Science, Yangzhou 225125, China
| | - M M Shen
- Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - J Lu
- Jiangsu Institute of Poultry Science, Yangzhou 225125, China
| | - T C Dou
- Jiangsu Institute of Poultry Science, Yangzhou 225125, China
| | - M Ma
- Jiangsu Institute of Poultry Science, Yangzhou 225125, China
| | - J Guo
- Jiangsu Institute of Poultry Science, Yangzhou 225125, China
| | - K H Wang
- Jiangsu Institute of Poultry Science, Yangzhou 225125, China
| | - L Qu
- Jiangsu Institute of Poultry Science, Yangzhou 225125, China.
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Zheng Q, Li M, Qiu Y, Yang J, Cao Y. Overexpression of SLC35F2 is a potential prognostic biomarker for lung adenocarcinoma. Heliyon 2024; 10:e23828. [PMID: 38187235 PMCID: PMC10767229 DOI: 10.1016/j.heliyon.2023.e23828] [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: 03/29/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 01/09/2024] Open
Abstract
Objective To explore the potential clinical and prognostic significance of Homo sapiens solute carrier family 35 member F2 (SLC35F2) in the context of lung adenocarcinoma (LUAD). Methods The expression pattern of SLC35F2 in LUAD tissues and normal tissues was analyzed in The Cancer Genome Atlas (TCGA) datasets and validated in 12 pairs of fresh clinical LUAD tissues and their corresponding adjacent normal tissues using quantitative real-time PCR (qRT-PCR) and western blotting. Immunohistochemistry (IHC) was used to assess the protein expression of SLC35F2 in 60 paraffin-embedded LUAD tissues, and its associations with clinicopathological parameters were further examined. The prognostic significance of SLC35F2 mRNA expression was also evaluated using the Kaplan-Meier method, and Cox regression models in LUAD patients from the TCGA database. The potential utility of SLC35F2 as an indicator of recurrence or metastasis was explored through the follow-up of selected clinical LUAD cases. Lastly, gene set enrichment analysis (GSEA) was conducted to investigate the underlying biological mechanisms and signaling pathways. Results Bioinformatics analysis utilizing the TCGA database indicated that SLC35F2 mRNA exhibited heightened expression in LUAD tissues when compared to normal tissues. These findings were further substantiated through the examination of 12 pairs of clinical LUAD tissues and their corresponding adjacent normal tissues, employing qRT-PCR and western blotting techniques. IHC results from a cohort of 60 LUAD patients demonstrated an up-regulation of SLC35F2 in 38 out of 60 individuals (63.3 %), which exhibited a significant correlation with tumor size, lymph node metastasis, and clinical stage (all P < 0.05). Both the Kaplan-Meier curve and the Cox proportional hazard analyses indicated a strong association between the up-regulation of SLC35F2 mRNA expression and unfavorable overall survival (OS) in patients with LUAD, as observed in the TCGA datasets (P < 0.05). The follow-up findings from select clinical LUAD cases provided evidence that the expression of SLC35F2 could serve as a dependable biomarker for monitoring the recurrence or metastasis. Additionally, the GSEA highlighted the enrichment of apoptosis, adhesion, small cell lung cancer (SCLC), and p53 signaling pathways in the subgroup of LUAD patients with elevated SLC35F2 expression. Conclusion SLC35F2 exhibited an up-regulated in both mRNA and protein expression, rendering it a valuable independent prognostic indicator for patients diagnosed with LUAD.
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Affiliation(s)
- Qingzhu Zheng
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Mingjie Li
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Yingkun Qiu
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Jiahao Yang
- Department of Laboratory Medicine, School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, 350004, China
| | - Yingping Cao
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, 350001, China
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5
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Lara MK, Chitre AS, Chen D, Johnson BB, Nguyen KM, Cohen KA, Muckadam SA, Lin B, Ziegler S, Beeson A, Sanches T, Solberg Woods LC, Polesskaya O, Palmer AA, Mitchell SH. Genome-wide association study of delay discounting in Heterogenous Stock rats. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.12.570851. [PMID: 38168347 PMCID: PMC10760013 DOI: 10.1101/2023.12.12.570851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Delay discounting refers to the behavioral tendency to devalue rewards as a function of their delay in receipt. Heightened delay discounting has been associated with substance use disorders, as well as multiple co-occurring psychopathologies. Genetic studies in humans and animal models have established that delay discounting is a heritable trait, but only a few specific genes have been associated with delay discounting. Here, we aimed to identify novel genetic loci associated with delay discounting through a genome-wide association study (GWAS) using Heterogenous Stock rats, a genetically diverse outbred population derived from eight inbred founder strains. We assessed delay discounting in 650 male and female rats using an adjusting amount procedure in which rats chose between smaller immediate sucrose rewards or a larger reward at variable delays. Preference switch points were calculated for each rat and both exponential and hyperbolic functions were fitted to these indifference points. Area under the curve (AUC) and the discounting parameter k of both functions were used as delay discounting measures. GWAS for AUC, exponential k, and indifference points for a short delay identified significant loci on chromosomes 20 and 14. The gene Slc35f1, which encodes a member of the solute carrier family of nucleoside sugar transporters, was the only gene within the chromosome 20 locus. That locus also contained an eQTL for Slc35f1, suggesting that heritable differences in the expression of that gene might be responsible for the association with behavior. The gene Adgrl3, which encodes a member of the latrophilin family of G-protein coupled receptors, was the only gene within the chromosome 14 locus. These findings implicate novel genes in delay discounting and highlight the need for further exploration.
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Affiliation(s)
- Montana Kay Lara
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Apurva S. Chitre
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Denghui Chen
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Benjamin B. Johnson
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Khai-Minh Nguyen
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Katarina A. Cohen
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Sakina A. Muckadam
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Bonnie Lin
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Shae Ziegler
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Angela Beeson
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Thiago Sanches
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Leah C. Solberg Woods
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Oksana Polesskaya
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
| | - Abraham A. Palmer
- Department of Psychiatry, University of California San Diego, La Jolla, CA, 92093, USA
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Suzanne H. Mitchell
- Departments of Behavioral Neuroscience, Psychiatry, the Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR, 97239 USA
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Colaco JC, Chandrasekaran AP, Karapurkar JK, Birappa G, Rajkumar S, Gowda DAA, Suresh B, Lee J, Singh V, Hong SH, Kim KS, Ramakrishna S. βTrCP1 promotes SLC35F2 protein ubiquitination and inhibits cancer progression in HeLa cells. Biochem Biophys Res Commun 2023; 682:27-38. [PMID: 37801987 DOI: 10.1016/j.bbrc.2023.09.095] [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: 07/13/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/08/2023]
Abstract
The solute carrier family 35 F2 (SLC35F2) belongs to membrane-bound carrier proteins that are associated with multiple cancers. The main factor that determines cancer progression is the expression level of SLC35F2. Thus, identifying the E3 ligase that controls SLC35F2 protein abundance in cancer cells is critical. Here, we identified βTrCP1 interacting with and reducing the SLC35F2 protein level. βTrCP1 signals SLC35F2 protein ubiquitination and reduces SLC35F2 protein half-life. The mRNA expression pattern between βTrCP1 and SLC35F2 across a panel of cancer cell lines showed a negative correlation. Additionally, the depletion of βTrCP1 accumulated SLC35F2 protein and promoted SLC35F2-mediated cell growth, migration, invasion, and colony formation ability in HeLa cells. Overall, we demonstrate that βTrCP1 acts as a tumor suppressor by controlling SLC35F2 protein abundance in cancer cells. The depletion of βTrCP1 promotes SLC35F2-mediated carcinogenesis. Thus, we envision that βTrCP1 may be a potential target for cancer therapeutics.
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Affiliation(s)
- Jencia Carminha Colaco
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea
| | | | | | - Girish Birappa
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Sripriya Rajkumar
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea
| | - D A Ayush Gowda
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Bharathi Suresh
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Junwon Lee
- Institute of Vision Research, Department of Ophthalmology, Gangnam Severance Hospital, Yonsei University College of Medicine, Eonjuro 211, Gangnam-Gu, Seoul, 06273, South Korea
| | - Vijai Singh
- Department of Biosciences, School of Science, Indrashil University, Rajpur, Mehsana, 382715, Gujarat, India
| | - Seok-Ho Hong
- Department of Internal Medicine, School of Medicine, Kangwon National University, Chuncheon, South Korea.
| | - Kye-Seong Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea; College of Medicine, Hanyang University, Seoul, 04763, South Korea.
| | - Suresh Ramakrishna
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, 04763, South Korea; College of Medicine, Hanyang University, Seoul, 04763, South Korea.
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Colaco JC, Chandrasekaran AP, Karapurkar JK, Gowda DAA, Birappa G, Rajkumar S, Suresh B, Ko N, Hong SH, Oh SJ, Kim KS, Ramakrishna S. E3 ubiquitin ligase APC/C Cdh1 regulates SLC35F2 protein turnover and inhibits cancer progression in HeLa cells. Biochim Biophys Acta Gen Subj 2023; 1867:130454. [PMID: 37689217 DOI: 10.1016/j.bbagen.2023.130454] [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: 06/15/2023] [Revised: 08/30/2023] [Accepted: 09/02/2023] [Indexed: 09/11/2023]
Abstract
BACKGROUND The solute carrier family 35 F2 (SLC35F2), belongs to membrane-bound carrier proteins that control various physiological functions and are activated in several cancers. However, the molecular mechanism regulating SLC35F2 protein turnover and its implication in cancer progression remains unexplored. Therefore, screening for E3 ligases that promote SLC35F2 protein degradation is essential during cancer progression. METHODS The immunoprecipitation and Duolink proximity ligation assays (PLA) were used to determine the interaction between APC/CCdh1 and SLC35F2 proteins. A CRISPR/Cas9-mediated knockdown and rescue experiment were used to validate the functional significance of APC/CCdh1 on SLC35F2 protein stabilization. The ubiquitination function of APC/CCdh1 on SLC35F2 protein was validated using in vitro ubiquitination assay and half-life analysis. The role of APC/CCdh1 regulating SLC35F2-mediated tumorigenesis was confirmed by in vitro oncogenic experiments in HeLa cells. RESULTS Based on the E3 ligase screen and in vitro biochemical experiments, we identified that APC/CCdh1 interacts with and reduces SLC35F2 protein level. APC/CCdh1 promotes SLC35F2 ubiquitination and decreases the half-life of SLC35F2 protein. On the other hand, the CRISPR/Cas9-mediated depletion of APC/CCdh1 increased SLC35F2 protein levels. The mRNA expression analysis revealed a negative correlation between APC/CCdh1 and SLC35F2 across a panel of cancer cell lines tested. Additionally, we demonstrated that depletion in APC/CCdh1 promotes SLC35F2-mediated cell proliferation, colony formation, migration, and invasion in HeLa cells. CONCLUSION Our study highlights that APC/CCdh1 is a critical regulator of SLC35F2 protein turnover and depletion of APC/CCdh1 promotes SLC35F2-mediated tumorigenesis. Thus, we envision that APC/CCdh1-SLC35F2 axis might be a therapeutic target in cancer.
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Affiliation(s)
- Jencia Carminha Colaco
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, South Korea
| | | | | | - D A Ayush Gowda
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, South Korea
| | - Girish Birappa
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, South Korea
| | - Sripriya Rajkumar
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, South Korea
| | - Bharathi Suresh
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, South Korea
| | - Nare Ko
- Biomedical Research Center, Asan Institute for Life Sciences, Seoul 05505, Republic of Korea; Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Seok-Ho Hong
- Department of Internal Medicine, School of Medicine, Kangwon National University, Chuncheon, South Korea
| | - Seung Jun Oh
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea.
| | - Kye-Seong Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, South Korea; College of Medicine, Hanyang University, Seoul, 04763, South Korea.
| | - Suresh Ramakrishna
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, South Korea; College of Medicine, Hanyang University, Seoul, 04763, South Korea.
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Che B, Du Y, Yuan R, Xiao H, Zhang W, Shao J, Lu H, Yu Y, Xiang M, Hao L, Zhang S, Du X, Liu X, Zhou W, Wang K, Chen L. SLC35F2-SYVN1-TRIM59 axis critically regulates ferroptosis of pancreatic cancer cells by inhibiting endogenous p53. Oncogene 2023; 42:3260-3273. [PMID: 37740007 DOI: 10.1038/s41388-023-02843-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/24/2023]
Abstract
Pancreatic cancer cells undergo intricate metabolic reprogramming to sustain their survival and proliferation. p53 exhibits a dual role in tumor cell ferroptosis. However, the precise role and mechanisms underlying wild-type p53 activation in promoting ferroptosis in pancreatic cancer cells remain obscure. In this study, we applied bioinformatics tools and performed an analysis of clinical tissue sample databases and observed a significantly upregulated expression of solute carrier family 35 member F2 (SLC35F2) in pancreatic cancer tissues. Our clinical investigations indicated that elevated SLC35F expression was related to adverse survival outcomes. Through multi-omics analyses, we discerned that SLC35F2 influences the transcriptome and inhibits ferroptosis in pancreatic cancer cells. Moreover, our findings reveal the pivotal involvement of p53 in mediating SLC35F2-mediated ferroptosis, both in vitro and in vivo. SLC35F2 inhibits ferroptosis by facilitating TRIM59-mediated p53 degradation. Further mechanistic investigations demonstrated that SLC35F2 competitively interacts with the E3 ubiquitin ligase SYVN1 of TRIM59, thereby stabilizing TRIM59 expression and consequentially promoting p53 degradation. Utilizing protein 3D structure analysis and drug screening, we identified irinotecan hydrochloride and lapatinib ditosylate as compounds targeting SLC35F2, augmenting the antitumor effect of imidazole ketone erastin (IKE) in a wild-type p53 patient-derived xenograft (PDX) model. However, in the p53 mutant PDX model, irinotecan hydrochloride and lapatinib ditosylate did not alter the sensitivity of the tumor xenograft model to IKE-triggered ferroptosis. In summary, our work establishes a novel mechanism wherein the SLC35F2-SYVN1-TRIM59 axis critically regulates ferroptosis of pancreatic cancer cells by inhibiting endogenous p53. Thus, SLC35F2 emerges as a promising therapeutic target for treating pancreatic cancer.
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Affiliation(s)
- Ben Che
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Yunyan Du
- Department of Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330000, China
| | - Rongfa Yuan
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Han Xiao
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Wenming Zhang
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Jun Shao
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Hongcheng Lu
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Yi Yu
- Department of Urology Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Mingfeng Xiang
- Department of Urology Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Liang Hao
- Department of Orthopedics, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Shouhua Zhang
- Department of General Surgery, The Affiliated Children's Hospital of Nanchang University, Nanchang, 330000, China
| | - Xiaohong Du
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China
| | - Xiuxia Liu
- Jiangxi Province Key Laboratory of Molecular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.
| | - Wei Zhou
- Department of Abdominal Surgery, Jiangxi Cancer Hospital, Nanchang, 330029, China.
| | - Kai Wang
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.
- Jiangxi Province Key Laboratory of Molecular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.
| | - Leifeng Chen
- Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
- Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, China.
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330000, China.
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9
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Ehlers JS, Bracke K, von Bohlen Und Halbach V, Siegerist F, Endlich N, von Bohlen Und Halbach O. Morphological and behavioral analysis of Slc35f1-deficient mice revealed no neurodevelopmental phenotype. Brain Struct Funct 2023; 228:895-906. [PMID: 36951990 PMCID: PMC10147817 DOI: 10.1007/s00429-023-02629-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/09/2023] [Indexed: 03/24/2023]
Abstract
SLC35F1 is a member of the sugar-like carrier (SLC) superfamily that is expressed in the mammalian brain. Malfunction of SLC35F1 in humans is associated with neurodevelopmental disorders. To get insight into the possible roles of Slc35f1 in the brain, we generated Slc35f1-deficient mice. The Slc35f1-deficient mice are viable and survive into adulthood, which allowed examining adult Slc35f1-deficient mice on the anatomical as well as behavioral level. In humans, mutation in the SLC35F1 gene can induce a Rett syndrome-like phenotype accompanied by intellectual disability (Fede et al. Am J Med Genet A 185:2238-2240, 2021). The Slc35f1-deficient mice, however, display only a very mild phenotype and no obvious deficits in learning and memory as, e.g., monitored with the novel object recognition test or the Morris water maze test. Moreover, neuroanatomical parameters of neuronal plasticity (as dendritic spines and adult hippocampal neurogenesis) are also unaltered. Thus, Slc35f1-deficient mice display no major alterations that resemble a neurodevelopmental phenotype.
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Affiliation(s)
- Julia Sophie Ehlers
- Institute for Anatomy and Cell Biology, Universitätsmedizin Greifswald, Friedrich Loeffler Str. 23C, 17487, Greifswald, Germany
| | - Katharina Bracke
- Institute for Anatomy and Cell Biology, Universitätsmedizin Greifswald, Friedrich Loeffler Str. 23C, 17487, Greifswald, Germany
| | - Viola von Bohlen Und Halbach
- Institute for Anatomy and Cell Biology, Universitätsmedizin Greifswald, Friedrich Loeffler Str. 23C, 17487, Greifswald, Germany
| | - Florian Siegerist
- Institute for Anatomy and Cell Biology, Universitätsmedizin Greifswald, Friedrich Loeffler Str. 23C, 17487, Greifswald, Germany
| | - Nicole Endlich
- Institute for Anatomy and Cell Biology, Universitätsmedizin Greifswald, Friedrich Loeffler Str. 23C, 17487, Greifswald, Germany
| | - Oliver von Bohlen Und Halbach
- Institute for Anatomy and Cell Biology, Universitätsmedizin Greifswald, Friedrich Loeffler Str. 23C, 17487, Greifswald, Germany.
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10
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Euclide PT, Jasonowicz A, Sitar S, Fischer G, Goetz FW. Further evidence from common garden rearing experiments of heritable traits separating lean and siscowet lake charr (Salvelinus namaycush) ecotypes. Mol Ecol 2022; 31:3432-3450. [PMID: 35510796 PMCID: PMC9323484 DOI: 10.1111/mec.16492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 03/07/2022] [Accepted: 04/12/2022] [Indexed: 11/30/2022]
Abstract
Genetic evidence of selection for complex and polygenically regulated phenotypes can easily become masked by neutral population genetic structure and phenotypic plasticity. Without direct evidence of genotype‐phenotype associations it can be difficult to conclude to what degree a phenotype is heritable or a product of environment. Common garden laboratory studies control for environmental stochasticity and help to determine the mechanism that regulate traits. Here we assess lipid content, growth, weight, and length variation in full and hybrid F1 crosses of deep and shallow water sympatric lake charr ecotypes reared for nine years in a common garden experiment. Redundancy analysis (RDA) and quantitative‐trait‐loci (QTL) genomic scans are used to identify associations between genotypes at 19,714 single nucleotide polymorphisms (SNPs) aligned to the lake charr genome and individual phenotypes to determine the role that genetic inheritance plays in ecotype phenotypic diversity. Lipid content, growth, length, and weight differed significantly among lake charr crosses throughout the experiment suggesting that pedigree plays a large roll in lake charr development. Polygenic scores of 15 SNPs putatively associated with lipid content and/or condition factor indicated that ecotype distinguishing traits are polygenically regulated and additive. A QTL identified on chromosome 38 contained >200 genes, some of which were associated with lipid metabolism and growth, demonstrating the complex nature of ecotype diversity. The results of our common garden study further indicate that lake charr ecotypes observed in nature are predetermined at birth and that ecotypes differ fundamentally in lipid metabolism and growth.
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Affiliation(s)
- P T Euclide
- Purdue University, Department of Forestry and Natural Resources, West Lafayette, IN, 47907, USA
| | - A Jasonowicz
- The International Halibut Commission, 2320 West Commodore Way, Suite 300, Seattle, WA, 98199-1287, USA
| | - S Sitar
- Michigan Department of Natural Resources, Marquette Fisheries Research Station, 484 Cherry Creek Rd., Marquette, MI, 49855, USA
| | - G Fischer
- University of Wisconsin-Stevens Point, Northern Aquaculture Demonstration Facility, 36445 State Hwy 13, Bayfield, WI, 54814, USA
| | - F W Goetz
- University of Wisconsin - Milwaukee, School of Freshwater Sciences, 600 East Greenfield Ave., Milwaukee, WI, 53204, USA
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11
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Shahroor MA, Lasorsa FM, Porcelli V, Dweikat I, Di Noia MA, Gur M, Agostino G, Shaag A, Rinaldi T, Gasparre G, Guerra F, Castegna A, Todisco S, Abu-Libdeh B, Elpeleg O, Palmieri L. PNC2 (SLC25A36) Deficiency Associated With the Hyperinsulinism/Hyperammonemia Syndrome. J Clin Endocrinol Metab 2022; 107:1346-1356. [PMID: 34971397 DOI: 10.1210/clinem/dgab932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT The hyperinsulinism/hyperammonemia (HI/HA) syndrome, the second-most common form of congenital hyperinsulinism, has been associated with dominant mutations in GLUD1, coding for the mitochondrial enzyme glutamate dehydrogenase, that increase enzyme activity by reducing its sensitivity to allosteric inhibition by GTP. OBJECTIVE To identify the underlying genetic etiology in 2 siblings who presented with the biochemical features of HI/HA syndrome but did not carry pathogenic variants in GLUD1, and to determine the functional impact of the newly identified mutation. METHODS The patients were investigated by whole exome sequencing. Yeast complementation studies and biochemical assays on the recombinant mutated protein were performed. The consequences of stable slc25a36 silencing in HeLa cells were also investigated. RESULTS A homozygous splice site variant was identified in solute carrier family 25, member 36 (SLC25A36), encoding the pyrimidine nucleotide carrier 2 (PNC2), a mitochondrial nucleotide carrier that transports pyrimidine as well as guanine nucleotides across the inner mitochondrial membrane. The mutation leads to a 26-aa in-frame deletion in the first repeat domain of the protein, which abolishes transport activity. Furthermore, knockdown of slc25a36 expression in HeLa cells caused a marked reduction in the mitochondrial GTP content, which likely leads to a hyperactivation of glutamate dehydrogenase in our patients. CONCLUSION We report for the first time a mutation in PNC2/SLC25A36 leading to HI/HA and provide functional evidence of the molecular mechanism responsible for this phenotype. Our findings underscore the importance of mitochondrial nucleotide metabolism and expand the role of mitochondrial transporters in insulin secretion.
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Affiliation(s)
- Maher A Shahroor
- Department of Pediatrics and Genetics, Al Makassed Hospital and Al-Quds University, 95908 Jerusalem, Palestine
- Department of Neonatology, Sunnybrook Health Sciences Center, University of Toronto, M4N 3M5 Toronto, Canada
| | - Francesco M Lasorsa
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70125 Bari, Italy
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, 70125 Bari, Italy
| | - Vito Porcelli
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70125 Bari, Italy
| | - Imad Dweikat
- Metabolic Unit, An-Najah National University, P467 Nablus, Palestine
| | - Maria Antonietta Di Noia
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70125 Bari, Italy
| | - Michal Gur
- Department of Genetics, Hadassah, Hebrew University Medical Center, 91120 Jerusalem, Israel
| | - Giulia Agostino
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70125 Bari, Italy
| | - Avraham Shaag
- Department of Genetics, Hadassah, Hebrew University Medical Center, 91120 Jerusalem, Israel
| | - Teresa Rinaldi
- Pasteur Institute-Cenci Bolognetti Foundation, Department of Biology and Biotechnology "Charles Darwin", University of Rome La Sapienza, 00185 Rome, Italy
| | - Giuseppe Gasparre
- Department of Medical and Surgical Sciences (DIMEC), Unit of Medical Genetics and Center for Applied Biomedical Research (CRBA), University of Bologna, 40138 Bologna, Italy
| | - Flora Guerra
- Department of Medical and Surgical Sciences (DIMEC), Unit of Medical Genetics and Center for Applied Biomedical Research (CRBA), University of Bologna, 40138 Bologna, Italy
| | - Alessandra Castegna
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70125 Bari, Italy
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, 70125 Bari, Italy
| | - Simona Todisco
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70125 Bari, Italy
| | - Bassam Abu-Libdeh
- Department of Pediatrics and Genetics, Al Makassed Hospital and Al-Quds University, 95908 Jerusalem, Palestine
| | - Orly Elpeleg
- Department of Genetics, Hadassah, Hebrew University Medical Center, 91120 Jerusalem, Israel
| | - Luigi Palmieri
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, 70125 Bari, Italy
- CNR Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, 70125 Bari, Italy
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12
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Seo JY, Choi JH. Genetic Variations in Thiamin Transferase SLC35F3 and the Risk of Hypertension in Koreans. Clin Nutr Res 2021; 10:140-149. [PMID: 33987140 PMCID: PMC8093086 DOI: 10.7762/cnr.2021.10.2.140] [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: 02/01/2021] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 11/19/2022] Open
Abstract
Hypertension is a major health issues globally. Multiple genetic and environmental factors are involved in hypertension etiology. Solute carrier family 35 member F3 (SLC35F3) is a type of transporter uptakes thiamin across the cellular and mitochondrial membrane. Recent studies suggested that variations in SLC35F3 are associated with the risk of hypertension; however, studies are limited in Koreans. This study examined the association of the genetic variations in SLC35F3 and the risk of hypertension in Koreans using the Korean Genome Epidemiology Study (Ansan/Ansung study). A total of 8,298 Koreans (males 3,983, females 4,315) were analyzed for their general characteristics, dietary intake, and blood pressure. Twenty-four tagging variations in SLC35F3 were selected and investigated for their association with the risk of hypertension using a sex-stratified approach. Findings suggested that, in males, rs12135117 A allele carriers were at the lower risk for hypertension (adjusted odds ratio, 0.859; 95% confidence interval [CI], 0.740–0.998). In females, rs10910387 TC genotype tended to increase the risk 1.172-fold for hypertension (95% CI, 1.002–1.370). Multiple linear regression models exhibited that rs12135117 A allele was negatively associated with blood pressure in males, and rs10910387 TC genotype had a positive association with blood pressure in females. However, statistical significance for these genetically modified effects was in lacked (Bonferroni's corrected p > 0.002). In conclusion, genetic variation in SLC35F3 is not a decisive prediction marker for hypertension risk in Koreans. Given the rarity of data, more studies are required to evaluate the role of SLC35F3 and thiamin in the hypertension etiology.
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Affiliation(s)
- Ja-Young Seo
- Department of Food Science and Nutrition, Keimyung University, Daegu 42601, Korea.,Department of Nutrition, Chungnam National University Hospital, Daejeon 35015, Korea
| | - Jeong-Hwa Choi
- Department of Food Science and Nutrition, Keimyung University, Daegu 42601, Korea
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13
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Ondo K, Arakawa H, Nakano M, Fukami T, Nakajima M. SLC35B1 significantly contributes to the uptake of UDPGA into the endoplasmic reticulum for glucuronidation catalyzed by UDP-glucuronosyltransferases. Biochem Pharmacol 2020; 175:113916. [PMID: 32179043 DOI: 10.1016/j.bcp.2020.113916] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 03/11/2020] [Indexed: 10/24/2022]
Abstract
The transport of UDP-glucuronic acid (UDPGA), a co-substrate of UDP-glucuronosyltransferase (UGT), to the intraluminal side of the endoplasmic reticulum (ER) is an essential step in the glucuronidation of exogenous and endogenous compounds. According to a previous study, the expression of recombinant SLC35B1, SLC35B4, or SLC35D1, nucleotide sugar transporters, in V79 cells has the potential to transport UDPGA into the lumen of microsomes. The purpose of this study is to examine whether the transport of UDPGA by these transporters substantially affects UGT activity. Since the knockdown of UDP-glucose 6-dehydrogenase, a synthetase of UDPGA, in HEK293 cells stably expressing UGT1A1 (HEK/UGT1A1 cells) resulted in a significant decrease in 4-methylumbelliferone (4-MU) glucuronosyltransferase activity, supplementation of a sufficient amount of UDPGA is required for UGT activity. By performing qRT-PCR using cDNA samples from 21 human liver samples, we observed levels of the SLC35B1 and SLC35D1 mRNAs that were 15- and 14-fold higher, respectively, than the levels of the SLC35B4 mRNA, and SLC35B1 showed the largest (37-fold) interindividual variability. Interestingly, 4-MU glucuronosyltransferase activity was significantly decreased upon the knockdown of SLC35B1 in HEK/UGT1A1 cells, and this phenomenon was also observed in HepaRG cells. Using siRNAs targeting 23 different SLC35 subfamilies, the knockdown of SLC35B1 and SLC35E3 decreased 4-MU glucuronosyltransferase activity in HEK/UGT1A1 cells. However, the 4-MU glucuronosyltransferase activity was not altered by SLC35E3 knockdown in HepaRG cells, suggesting that SLC35B1 was the main transporter of UDPGA into the ER in the human liver. In conclusion, SLC35B1 is a key modulator of UGT activity by transporting UDPGA to the intraluminal side of the ER.
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Affiliation(s)
- Kyoko Ondo
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Hiroshi Arakawa
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Masataka Nakano
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Tatsuki Fukami
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Miki Nakajima
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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14
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Orozco CC, Atkinson K, Ryu S, Chang G, Keefer C, Lin J, Riccardi K, Mongillo RK, Tess D, Filipski KJ, Kalgutkar AS, Litchfield J, Scott D, Di L. Structural attributes influencing unbound tissue distribution. Eur J Med Chem 2020; 185:111813. [DOI: 10.1016/j.ejmech.2019.111813] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 09/03/2019] [Accepted: 10/23/2019] [Indexed: 12/26/2022]
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15
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Chen M, Gao X, Huang D, Wang S, Zheng L, Chen Y, Wen X, Gao Y, Cao H, Zhang S. Knockdown of SLC35F2 Inhibits the Proliferation and Metastasis of Bladder Cancer Cells. Onco Targets Ther 2019; 12:10771-10786. [PMID: 31849485 PMCID: PMC6911351 DOI: 10.2147/ott.s229332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/19/2019] [Indexed: 01/03/2023] Open
Abstract
Background Many studies have shown that solute carrier family 35 member F2 (SLC35F2) plays a key role in the biological processes of multiple cancers. However, there have been no reports on the role of SLC35F2 in the occurrence and development of bladder cancer (BC). Methods SLC35F2 expression data and clinical and prognostic information from BC patients were obtained from databases. SLC35F2 expression in BC was verified by quantitative real-time PCR (qRT-PCR). The influence of SLC35F2 knockdown on the proliferation, apoptosis, migration and invasion in the 5637 and T24 cell lines was studied, and tumor formation experiments were performed in nude mice. Gene set enrichment analysis (GSEA) was used to predict the pathways and functions of SLC35F2 in BC. Results SLC35F2 was highly expressed in BC tissues and was associated with invasiveness and T stage in BC patients. SLC35F2 knockdown can inhibit the proliferation, migration and invasion of BC cells and can promote apoptosis. SLC35F2 knockdown significantly reduced tumorigenesis in nude mice. GSEA showed that BC, pathways in cancer, apoptosis and the P53 signaling pathway were significantly enriched in SLC35F2 high expression phenotype. Conclusion SLC35F2 can promote malignant progression and is a potential therapeutic target in BC.
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Affiliation(s)
- Mei Chen
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, People's Republic of China
| | - Xin Gao
- Clinical Laboratory, The First People's Hospital of Huaihua, Huaihua 418000, People's Republic of China
| | - Denggao Huang
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, People's Republic of China
| | - Shunlan Wang
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, People's Republic of China
| | - Linlin Zheng
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, People's Republic of China
| | - Yinyi Chen
- Clinical Laboratory, The First Affiliated Hospital of University of South China, Hengyang 421001, People's Republic of China
| | - Xiaohong Wen
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, People's Republic of China
| | - Yuanhui Gao
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, People's Republic of China
| | - Hui Cao
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, People's Republic of China
| | - Shufang Zhang
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, People's Republic of China
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16
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Hadley B, Litfin T, Day CJ, Haselhorst T, Zhou Y, Tiralongo J. Nucleotide Sugar Transporter SLC35 Family Structure and Function. Comput Struct Biotechnol J 2019; 17:1123-1134. [PMID: 31462968 PMCID: PMC6709370 DOI: 10.1016/j.csbj.2019.08.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/05/2019] [Accepted: 08/05/2019] [Indexed: 12/22/2022] Open
Abstract
The covalent attachment of sugars to growing glycan chains is heavily reliant on a specific family of solute transporters (SLC35), the nucleotide sugar transporters (NSTs) that connect the synthesis of activated sugars in the nucleus or cytosol, to glycosyltransferases that reside in the lumen of the endoplasmic reticulum (ER) and/or Golgi apparatus. This review provides a timely update on recent progress in the NST field, specifically we explore several NSTs of the SLC35 family whose substrate specificity and function have been poorly understood, but where recent significant progress has been made. This includes SLC35 A4, A5 and D3, as well as progress made towards understanding the association of SLC35A2 with SLC35A3 and how this relates to their potential regulation, and how the disruption to the dilysine motif in SLC35B4 causes mislocalisation, calling into question multisubstrate NSTs and their subcellular localisation and function. We also report on the recently described first crystal structure of an NST, the SLC35D2 homolog Vrg-4 from yeast. Using this crystal structure, we have generated a new model of SLC35A1, (CMP-sialic acid transporter, CST), with structural and mechanistic predictions based on all known CST-related data, and includes an overview of reported mutations that alter transport and/or substrate recognition (both de novo and site-directed). We also present a model of the CST-del177 isoform that potentially explains why the human CST isoform remains active while the hamster CST isoform is inactive, and we provide a possible alternate access mechanism that accounts for the CST being functional as either a monomer or a homodimer. Finally we provide an update on two NST crystal structures that were published subsequent to the submission and during review of this report.
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Affiliation(s)
- Barbara Hadley
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
| | - Thomas Litfin
- School of Information and Communication Technology, Griffith University, Gold Coast Campus, Queensland 4212, Australia
| | - Chris J. Day
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
| | - Thomas Haselhorst
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
| | - Yaoqi Zhou
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
- School of Information and Communication Technology, Griffith University, Gold Coast Campus, Queensland 4212, Australia
| | - Joe Tiralongo
- Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia
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17
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van Setten J, Verweij N, Mbarek H, Niemeijer MN, Trompet S, Arking DE, Brody JA, Gandin I, Grarup N, Hall LM, Hemerich D, Lyytikäinen LP, Mei H, Müller-Nurasyid M, Prins BP, Robino A, Smith AV, Warren HR, Asselbergs FW, Boomsma DI, Caulfield MJ, Eijgelsheim M, Ford I, Hansen T, Harris TB, Heckbert SR, Hottenga JJ, Iorio A, Kors JA, Linneberg A, MacFarlane PW, Meitinger T, Nelson CP, Raitakari OT, Silva Aldana CT, Sinagra G, Sinner M, Soliman EZ, Stoll M, Uitterlinden A, van Duijn CM, Waldenberger M, Alonso A, Gasparini P, Gudnason V, Jamshidi Y, Kääb S, Kanters JK, Lehtimäki T, Munroe PB, Peters A, Samani NJ, Sotoodehnia N, Ulivi S, Wilson JG, de Geus EJC, Jukema JW, Stricker B, van der Harst P, de Bakker PIW, Isaacs A. Genome-wide association meta-analysis of 30,000 samples identifies seven novel loci for quantitative ECG traits. Eur J Hum Genet 2019; 27:952-962. [PMID: 30679814 PMCID: PMC6777533 DOI: 10.1038/s41431-018-0295-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 10/05/2018] [Accepted: 10/16/2018] [Indexed: 01/09/2023] Open
Abstract
Genome-wide association studies (GWAS) of quantitative electrocardiographic (ECG) traits in large consortia have identified more than 130 loci associated with QT interval, QRS duration, PR interval, and heart rate (RR interval). In the current study, we meta-analyzed genome-wide association results from 30,000 mostly Dutch samples on four ECG traits: PR interval, QRS duration, QT interval, and RR interval. SNP genotype data was imputed using the Genome of the Netherlands reference panel encompassing 19 million SNPs, including millions of rare SNPs (minor allele frequency < 5%). In addition to many known loci, we identified seven novel locus-trait associations: KCND3, NR3C1, and PLN for PR interval, KCNE1, SGIP1, and NFKB1 for QT interval, and ATP2A2 for QRS duration, of which six were successfully replicated. At these seven loci, we performed conditional analyses and annotated significant SNPs (in exons and regulatory regions), demonstrating involvement of cardiac-related pathways and regulation of nearby genes.
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Affiliation(s)
- Jessica van Setten
- Division Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands.
| | - Niek Verweij
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Hamdi Mbarek
- Department of Biological Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | | | - Stella Trompet
- Department of Internal Medicine, Section of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Dan E Arking
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jennifer A Brody
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA, USA
| | | | - Niels Grarup
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Leanne M Hall
- Department of Cardiovascular Sciences, University of Leicester, Leicester, England
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester, UK
| | - Daiane Hemerich
- Division Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
- CAPES Foundation, Ministry of Education of Brazil, Brasília, DF, 70040-020, Brazil
| | - Leo-Pekka Lyytikäinen
- Department of Clinical Chemistry, Fimlab Laboratories, and Finnish Cardiovascular Research Center - Tampere, Faculty of Medicine and Life Sciences, University of Tampere, 33520, Tampere, Finland
| | - Hao Mei
- Center of Biostatistics and Bioinformatics, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Martina Müller-Nurasyid
- Institute of Genetic Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
- Department of Medicine I, Ludwig-Maximilians-Universität, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Chair of Genetic Epidemiology, IBE, Faculty of Medicine, LMU Munich, Germany
| | - Bram P Prins
- Human Genetics Research Centre, ICCS, St George's University of London, London, UK
| | - Antonietta Robino
- Institute for Maternal and Child Health, IRCCS "Burlo Garofolo", Trieste, Italy
| | - Albert V Smith
- Icelandic Heart Association, Kopavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykavik, Iceland
| | - Helen R Warren
- William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
- NIHR Barts Cardiovascular Research Centre, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Folkert W Asselbergs
- Division Heart & Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
- Durrer Center for Cardiovascular Research, Netherlands Heart Institute, Utrecht, The Netherlands
- Institute of Cardiovascular Science, Faculty of Population Health Sciences, and Farr Institute of Health Informatics Research and Institute of Health Informatics, University College London, London, UK
| | - Dorret I Boomsma
- Department of Biological Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Mark J Caulfield
- William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
- NIHR Barts Cardiovascular Research Centre, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Mark Eijgelsheim
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
- Department of Nephrology, University Medical Center Groningen, Groningen, The Netherlands
| | - Ian Ford
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Torben Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Tamara B Harris
- Laboratory of Epidemiology, Demography and Biometry, National Institute on Aging, Bethesda, MD, USA
| | - Susan R Heckbert
- Cardiovascular Health Research Unit and Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Jouke-Jan Hottenga
- Department of Biological Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Annamaria Iorio
- Cardiovascular Department, "Ospedali Riuniti and University of Trieste", Trieste, Italy
| | - Jan A Kors
- Department of Medical Informatics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Allan Linneberg
- Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital-The Capital Region, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Thomas Meitinger
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Institute of Human Genetics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
- Institute of Human Genetics, Technische Universität München, Munich, Germany
| | - Christopher P Nelson
- Department of Cardiovascular Sciences, University of Leicester, Leicester, England
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester, UK
| | - Olli T Raitakari
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, and Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, 20520, Finland
| | - Claudia T Silva Aldana
- Genetic Epidemiology Unit, Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Doctoral Program in Biomedical Sciences, Universidad del Rosario, Bogotá, Colombia
- Institute of translational Medicine-IMT-Center For Research in Genetics and Genomics-CIGGUR, GENIUROS Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Rosario, Colombia
| | - Gianfranco Sinagra
- Cardiovascular Department, "Ospedali Riuniti and University of Trieste", Trieste, Italy
| | - Moritz Sinner
- Department of Medicine I, Ludwig-Maximilians-Universität, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Elsayed Z Soliman
- Epidemiological Cardiology Research Center (EPICARE), Department of Epidemiology and Prevention, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Monika Stoll
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, The Netherlands
- Maastricht Centre for Systems Biology (MaCSBio), Maastricht University, Maastricht, The Netherlands
- Department of Biochemistry, Maastricht University, Maastricht, The Netherlands
| | - Andre Uitterlinden
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Cornelia M van Duijn
- Genetic Epidemiology Unit, Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Melanie Waldenberger
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Research unit of Molecular Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
- Institute of Epidemiology II, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Alvaro Alonso
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Paolo Gasparini
- DSM, University of Trieste, Trieste, Italy
- IRCCS-Burlo Garofolo Children Hospital, Via dell'Istria 65, Trieste, Italy
| | - Vilmundur Gudnason
- Icelandic Heart Association, Kopavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykavik, Iceland
| | - Yalda Jamshidi
- Human Genetics Research Centre, ICCS, St George's University of London, London, UK
| | - Stefan Kääb
- Department of Medicine I, Ludwig-Maximilians-Universität, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Jørgen K Kanters
- Laboratory of Experimental Cardiology, University of Copenhagen, Copenhagen, Denmark
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories, and Finnish Cardiovascular Research Center - Tampere, Faculty of Medicine and Life Sciences, University of Tampere, 33520, Tampere, Finland
| | - Patricia B Munroe
- William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
- NIHR Barts Cardiovascular Research Centre, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Annette Peters
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
- Institute of Epidemiology II, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
- German Center for Diabetes Research, Neuherberg, Germany
| | - Nilesh J Samani
- Department of Cardiovascular Sciences, University of Leicester, Leicester, England
- NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Groby Road, Leicester, UK
| | - Nona Sotoodehnia
- Cardiovascular Health Research Unit, Division of Cardiology, University of Washington, Seattle, WA, USA
| | - Sheila Ulivi
- Institute for Maternal and Child Health, IRCCS "Burlo Garofolo", Trieste, Italy
| | - James G Wilson
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Eco J C de Geus
- Department of Biological Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Bruno Stricker
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
| | - Pim van der Harst
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Durrer Center for Cardiogenetic Research, ICIN-Netherlands Heart Institute, Utrecht, The Netherlands
| | - Paul I W de Bakker
- Department of Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Epidemiology, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Aaron Isaacs
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, The Netherlands.
- Maastricht Centre for Systems Biology (MaCSBio), Maastricht University, Maastricht, The Netherlands.
- Department of Biochemistry, Maastricht University, Maastricht, The Netherlands.
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Abstract
The solute carrier (SLC) group of membrane transport proteins includes about 400 members organized into more than 50 families. The SLC family that comprises nucleoside-sugar transporters is referred to as SLC35. One of the members of this family is SLC35F1. The function of SLC35F1 is still unknown; however, recent studies demonstrated that SLC35F1 mRNA is highly expressed in the brain and in the kidney. Therefore, we examine the distribution of Slc35f1 protein in the murine forebrain using immunohistochemistry. We could demonstrate that Slc35f1 is highly expressed in the adult mouse brain in a variety of different brain structures, including the cortex, hippocampus, amygdala, thalamus, basal ganglia, and hypothalamus. To examine the possible roles of Slc35f1 and its subcellular localization, we used an in vitro glioblastoma cell line expressing Slc35f1. Co-labeling experiments were performed to reveal the subcellular localization of Slc35f1. Our results indicate that Slc35f1 neither co-localizes with markers for the Golgi apparatus nor with markers for the endoplasmic reticulum. Time-lapse microscopy of living cells revealed that Slc35f1-positive structures are highly dynamic and resemble vesicles. Using super-resolution microscopy, these Slc35f1-positive spots clearly co-localize with the recycling endosome marker Rab11.
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19
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Bazan B, Wiktor M, Maszczak-Seneczko D, Olczak T, Kaczmarek B, Olczak M. Lysine at position 329 within a C-terminal dilysine motif is crucial for the ER localization of human SLC35B4. PLoS One 2018; 13:e0207521. [PMID: 30458018 PMCID: PMC6245738 DOI: 10.1371/journal.pone.0207521] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 11/01/2018] [Indexed: 12/21/2022] Open
Abstract
SLC35B4 belongs to the solute carrier 35 (SLC35) family whose best-characterized members display a nucleotide sugar transporting activity. Using an experimental model of HepG2 cells and indirect immunofluorescent staining, we verified that SLC35B4 was localized to the endoplasmic reticulum (ER). We demonstrated that dilysine motif, especially lysine at position 329, is crucial for the ER localization of this protein in human cells and therefore one should use protein C-tagging with caution. To verify the importance of the protein in glycoconjugates synthesis, we generated SLC35B4-deficient HepG2 cell line using CRISPR-Cas9 approach. Our data showed that knock-out of the SLC35B4 gene does not affect major UDP-Xyl- and UDP-GlcNAc-dependent glycosylation pathways.
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Affiliation(s)
- Bożena Bazan
- Faculty of Biotechnology, University of Wrocław, Wrocław, Poland
| | - Maciej Wiktor
- Faculty of Biotechnology, University of Wrocław, Wrocław, Poland
| | | | - Teresa Olczak
- Faculty of Biotechnology, University of Wrocław, Wrocław, Poland
| | - Beata Kaczmarek
- Faculty of Biotechnology, University of Wrocław, Wrocław, Poland
| | - Mariusz Olczak
- Faculty of Biotechnology, University of Wrocław, Wrocław, Poland
- * E-mail:
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20
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SLC35B4, an Inhibitor of Gluconeogenesis, Responds to Glucose Stimulation and Downregulates Hsp60 among Other Proteins in HepG2 Liver Cell Lines. Molecules 2018; 23:molecules23061350. [PMID: 29867058 PMCID: PMC6100323 DOI: 10.3390/molecules23061350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 01/04/2023] Open
Abstract
SLC35B4, solute receptor for UDP-N-acetylglucosamine and UDP-xylose, is associated with diabetes and predisposing conditions. This study investigated the localization of SLC35B4 and compared the differential expression between a knockdown of SLC35B4 and controls in HepG2. Responsiveness to glucose, expression, and localization were assayed using Western blot and immunostaining. Localization was confirmed using a proximity ligation assay. Two-dimensional (2D) gel electrophoresis and MALDI-TOF were used to identify differentially expressed proteins and pathway analysis was performed. SLC35B4 was increased by 60% upon glucose stimulation and localized in Golgi apparatus and endoplasmic reticulum. Presence of SLC35B4 in the Golgi apparatus suggests its involvement in the biosynthesis of glycoconjugate proteins. Four proteins were markedly under-expressed (Hsp60, HspA8, TUBA1A, and ENO1) and linked to the pathogenesis of diabetes or post-translationally modified by O-GlcNAc. Glucose levels activate SLC35B4 expression. This triggers a downstream effect via Hsp60 and other proteins. We hypothesize that the downstream effect on the proteins is mediated via altering the glycosylation pattern inside liver cells. The downstream cascade ultimately alters the ability of cultured liver cells to inhibit endogenous glucose production, and this could play a role in the association of the above-listed genes with the pathogenesis of diabetes.
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21
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He J, Jin Y, Zhou M, Li X, Chen W, Wang Y, Gu S, Cao Y, Chu C, Liu X, Zou Q. Solute carrier family 35 member F2 is indispensable for papillary thyroid carcinoma progression through activation of transforming growth factor-β type I receptor/apoptosis signal-regulating kinase 1/mitogen-activated protein kinase signaling axis. Cancer Sci 2018; 109:642-655. [PMID: 29274137 PMCID: PMC5834798 DOI: 10.1111/cas.13478] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 12/14/2017] [Accepted: 12/19/2017] [Indexed: 02/05/2023] Open
Abstract
Solute carrier family members control essential physiological functions and are tightly linked to human diseases. Solute carrier family 35 member F2 (SLC35F2) is aberrantly activated in several malignancies. However, the biological function and molecular mechanism of SLC35F2 in papillary thyroid carcinoma (PTC) are yet to be fully explored. Here, we showed that SLC35F2 was prominently upregulated in PTC tissues at both protein and mRNA expression level compared with matched adjacent normal tissues. Besides, the high expression of SLC35F2 was significantly associated with lymph node metastasis in patients with PTC. CRISPR/Cas9-mediated knockout of SLC35F2 attenuated the tumorigenic properties of PTC, including cell proliferation, migration and invasion and induced G1 phase arrest. In contrast, ectopic expression of SLC35F2 brought about aggressive malignant phenotypes of PTC cells. Moreover, SLC35F2 expedited the proliferation and migration of PTC cells by targeting transforming growth factor-β type I receptor (TGFBR1) and phosphorylation of apoptosis signal-regulating kinase 1 (p-ASK-1), thereby activating the mitogen-activated protein kinase signaling pathway. The malignant behaviors induced by overexpression of SLC35F2 could be abrogated by silencing of TGFBR1 using a specific inhibitor. We conducted the first study on SLC35F2 in thyroid cancer with the aim of elucidating the functional significance and molecular mechanism of SLC35F2. Our findings suggest that SLC35F2 exerts its oncogenic effect on PTC progression through the mitogen-activated protein kinase pathway, with dependence on activation of TGFBR-1 and apoptosis signal-regulating kinase 1.
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Affiliation(s)
- Jing He
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
| | - Yiting Jin
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
| | - Mingxia Zhou
- Department of GastroenterologyXinhua HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Xiaoyan Li
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
| | - Wanna Chen
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
| | - Yiwei Wang
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
| | - Siwen Gu
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
| | - Yun Cao
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
| | - Chengyu Chu
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
| | - Xiuping Liu
- Department of PathologySchool of Basic Medical SciencesFudan UniversityShanghaiChina
- Department of PathologyThe Fifth People's Hospital of ShanghaiFudan UniversityShanghaiChina
| | - Qiang Zou
- Department of General SurgeryHuashan HospitalFudan UniversityShanghaiChina
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Hao GJ, Ding YH, Wen H, Li XF, Zhang W, Su HY, Liu DM, Xie NL. Attenuation of deregulated miR-369-3p expression sensitizes non-small cell lung cancer cells to cisplatin via modulation of the nucleotide sugar transporter SLC35F5. Biochem Biophys Res Commun 2017; 488:501-508. [DOI: 10.1016/j.bbrc.2017.05.075] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 05/12/2017] [Indexed: 01/09/2023]
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23
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Nyquist MD, Corella A, Burns J, Coleman I, Gao S, Tharakan R, Riggan L, Cai C, Corey E, Nelson PS, Mostaghel EA. Exploiting AR-Regulated Drug Transport to Induce Sensitivity to the Survivin Inhibitor YM155. Mol Cancer Res 2017; 15:521-531. [PMID: 28465296 PMCID: PMC5471626 DOI: 10.1158/1541-7786.mcr-16-0315-t] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 12/03/2016] [Accepted: 12/22/2016] [Indexed: 12/12/2022]
Abstract
Androgen receptor (AR) signaling is fundamental to prostate cancer and is the dominant therapeutic target in metastatic disease. However, stringent androgen deprivation therapy regimens decrease quality of life and have been largely unsuccessful in curtailing mortality. Recent clinical and preclinical studies have taken advantage of the dichotomous ability of AR signaling to elicit growth-suppressive and differentiating effects by administering hyperphysiologic levels of testosterone. In this study, high-throughput drug screening identified a potent synergy between high-androgen therapy and YM155, a transcriptional inhibitor of survivin (BIRC5). This interaction was mediated by the direct transcriptional upregulation of the YM155 transporter SLC35F2 by the AR. Androgen-mediated YM155-induced cell death was completely blocked by the overexpression of multidrug resistance transporter ABCB1. SLC35F2 expression was significantly correlated with intratumor androgen levels in four distinct patient-derived xenograft models, and with AR activity score in a large gene expression dataset of castration-resistant metastases. A subset of tumors had significantly elevated SLC35F2 expression and, therefore, may identify patients who are highly responsive to YM155 treatment. IMPLICATIONS The combination of androgen therapy with YM155 represents a novel drug synergy, and SLC35F2 may serve as a clinical biomarker of response to YM155.
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Affiliation(s)
- Michael D Nyquist
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Alexandra Corella
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - John Burns
- Virginia Mason Medical Center, Seattle, Washington
| | - Ilsa Coleman
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Shuai Gao
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, Massachusetts
- Hematology-Oncology Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Robin Tharakan
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Luke Riggan
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Changmeng Cai
- Center for Personalized Cancer Therapy, University of Massachusetts Boston, Boston, Massachusetts
- Hematology-Oncology Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Eva Corey
- Department of Urology, University of Washington, Seattle, Washington
| | - Peter S Nelson
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Urology, University of Washington, Seattle, Washington
- Division of Oncology, Department of Medicine, University of Washington, Seattle, Washington
| | - Elahe A Mostaghel
- Division of Oncology, Department of Medicine, University of Washington, Seattle, Washington.
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
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Nyquist MD, Prasad B, Mostaghel EA. Harnessing Solute Carrier Transporters for Precision Oncology. Molecules 2017; 22:E539. [PMID: 28350329 PMCID: PMC5570559 DOI: 10.3390/molecules22040539] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 12/11/2022] Open
Abstract
Solute Carrier (SLC) transporters are a large superfamily of transmembrane carriers involved in the regulated transport of metabolites, nutrients, ions and drugs across cellular membranes. A subset of these solute carriers play a significant role in the cellular uptake of many cancer therapeutics, ranging from chemotherapeutics such as antimetabolites, topoisomerase inhibitors, platinum-based drugs and taxanes to targeted therapies such as tyrosine kinase inhibitors. SLC transporters are co-expressed in groups and patterns across normal tissues, suggesting they may comprise a coordinated regulatory circuit serving to mediate normal tissue functions. In cancer however, there are dramatic changes in expression patterns of SLC transporters. This frequently serves to feed the increased metabolic demands of the tumor cell for amino acids, nucleotides and other metabolites, but also presents a therapeutic opportunity, as increased transporter expression may serve to increase intracellular concentrations of substrate drugs. In this review, we examine the regulation of drug transporters in cancer and how this impacts therapy response, and discuss novel approaches to targeting therapies to specific cancers via tumor-specific aberrations in transporter expression. We propose that among the oncogenic changes in SLC transporter expression there exist emergent vulnerabilities that can be exploited therapeutically, extending the application of precision medicine from tumor-specific drug targets to tumor-specific determinants of drug uptake.
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Affiliation(s)
- Michael D Nyquist
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
| | - Bhagwat Prasad
- Department of Pharmaceutics, University of Washington, Seattle, WA 98195, USA.
| | - Elahe A Mostaghel
- Division of Oncology, Department of Medicine, University of Washington, Seattle, WA 98195 USA.
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
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25
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Daud ANA, Bergman JEH, Oktora MP, Kerstjens-Frederikse WS, Groen H, Bos JH, Hak E, Wilffert B. Maternal use of drug substrates of placental transporters and the effect of transporter-mediated drug interactions on the risk of congenital anomalies. PLoS One 2017; 12:e0173530. [PMID: 28288183 PMCID: PMC5348032 DOI: 10.1371/journal.pone.0173530] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 02/21/2017] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND A number of transporter proteins are expressed in the placenta, and they facilitate the placental transfer of drugs. The inhibition of P-glycoprotein (P-gp) was previously found to be associated with an increase in the risk of congenital anomalies caused by drug substrates of this transporter. We now explore the role of other placental transporter proteins. METHODS A population-based case-referent study was performed using cases with congenital anomalies (N = 5,131) from EUROCAT Northern Netherlands, a registry of congenital anomalies. The referent population (N = 31,055) was selected from the pregnancy IADB.nl, a pharmacy prescription database. RESULTS Ten placental transporters known to have comparable expression levels in the placenta to that of P-gp, were selected in this study. In total, 147 drugs were identified to be substrates, inhibitors or inducers, of these transporters. Fifty-eight of these drugs were used by at least one mother in our cases or referent population, and 28 were used in both. The highest user rate was observed for the substrates of multidrug resistance-associated protein 1, mainly folic acid (6% of cases, 8% of referents), and breast cancer resistance protein, mainly nitrofurantoin (2.3% of cases, 2.9% of referents). In contrast to P-gp, drug interactions involving substrates of these transporters did not have a significant effect on the risk of congenital anomalies. CONCLUSIONS Some of the drugs which are substrates or inhibitors of placental transporters were commonly used during pregnancy. No significant effect of transporter inhibition was found on fetal drug exposure, possibly due to a limited number of exposures.
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Affiliation(s)
- Aizati N. A. Daud
- University of Groningen, Groningen Research Institute of Pharmacy, PharmacoTherapy, -Epidemiology & -Economics, Groningen, the Netherlands
- Universiti Sains Malaysia, School of Pharmaceutical Sciences, Discipline of Clinical Pharmacy, Penang, Malaysia
| | - Jorieke E. H. Bergman
- University of Groningen, University Medical Center Groningen, Department of Genetics, Groningen, the Netherlands
| | - Monika P. Oktora
- University of Groningen, Groningen Research Institute of Pharmacy, PharmacoTherapy, -Epidemiology & -Economics, Groningen, the Netherlands
| | | | - Henk Groen
- University of Groningen, University Medical Centre Groningen, Department of Epidemiology, Groningen, the Netherlands
| | - Jens H. Bos
- University of Groningen, Groningen Research Institute of Pharmacy, PharmacoTherapy, -Epidemiology & -Economics, Groningen, the Netherlands
| | - Eelko Hak
- University of Groningen, Groningen Research Institute of Pharmacy, PharmacoTherapy, -Epidemiology & -Economics, Groningen, the Netherlands
| | - Bob Wilffert
- University of Groningen, Groningen Research Institute of Pharmacy, PharmacoTherapy, -Epidemiology & -Economics, Groningen, the Netherlands
- University of Groningen, University Medical Center Groningen, Department of Clinical Pharmacy and Pharmacology, Groningen, the Netherlands
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Crisà A, Ferrè F, Chillemi G, Moioli B. RNA-Sequencing for profiling goat milk transcriptome in colostrum and mature milk. BMC Vet Res 2016; 12:264. [PMID: 27884183 PMCID: PMC5123407 DOI: 10.1186/s12917-016-0881-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 11/07/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND In this work we aimed at sequencing and assembling the goat milk transcriptome corresponding at colostrum and 120 days of lactation. To reconstruct transcripts we used both the genome as reference, and a de novo assembly approach. Additionally, we aimed at identifying the differentially expressed genes (DEGs) between the two lactation stages and at analyzing the expression of genes involved in oligosaccharides metabolism. RESULTS A total of 44,635 different transcripts, organized in 33,757 tentative genes, were obtained using the goat genome as reference. A significant sequence similarity match was found for 40,353 transcripts (90%) against the NCBI NT and for 35,701 (80%) against the NR databases. 68% and 69% of the de novo assembled transcripts, in colostrum and 120 days of lactation samples respectively, have a significant match with the merged transcriptome obtained using Cufflinks/Cuffmerge. CSN2, PAEP, CSN1S2, CSN3, LALBA, TPT1, FTH1, M-SAA3, SPP1, GLYCAM1, EEF1A1, CTSD, FASN, RPS29, CSN1S1, KRT19 and CHEK1 were found between the top fifteen highly expressed genes. 418 loci were differentially expressed between lactation stages, among which 207 and 122 were significantly up- and down-regulated in colostrum, respectively. Functional annotation and pathway enrichment analysis showed that in goat colostrum somatic cells predominate biological processes involved in glycolysis, carbohydrate metabolism, defense response, cytokine activity, regulation of cell proliferation and cell death, vasculature development, while in mature milk, biological process associated with positive regulation of lymphocyte activation and anatomical structure morphogenesis are enriched. The analysis of 144 different oligosaccharide metabolism-related genes showed that most of these (64%) were more expressed in colostrum than in mature milk, with eight expressed at very high levels (SLCA3, GMSD, NME2, SLC2A1, B4GALT1, B3GNT2, NANS, HEXB). CONCLUSIONS To our knowledge, this is the first study comparing goat transcriptome of two lactation stages: colostrum and 120 days. Our findings suggest putative differences of expression between stages and can be envisioned as a base for further research in the topic. Moreover because a higher expression of genes involved in immune defense response, carbohydrate metabolism and related to oligosaccharide metabolism was identified in colostrum we here corroborate the potential of goat milk as a natural source of lactose-derived oligosaccharides and for the development of functional foods.
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Affiliation(s)
- Alessandra Crisà
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA) - Animal production research centre, Via Salaria 31, 00015, Monterotondo, Rome, Italy.
| | - Fabrizio Ferrè
- Department of Pharmacy and Biotechnology (FaBiT), University of Bologna Alma Mater, Via Belmeloro 6, 40126, Bologna, Italy
| | - Giovanni Chillemi
- Applications and Innovation Department, CINECA, SCAI SuperComputing, Via dei Tizii 6, 00185, Rome, Italy
| | - Bianca Moioli
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA) - Animal production research centre, Via Salaria 31, 00015, Monterotondo, Rome, Italy
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Xu Q, Pan Y, Li L, Zhou Z, Huang Q, Pang JC, Zhu X, Ren Y, Yang H, Ohgaki H, Lv S. MiR-22 is frequently downregulated in medulloblastomas and inhibits cell proliferation via the novel target PAPST1. Brain Pathol 2014; 24:568-83. [PMID: 24576181 PMCID: PMC8029063 DOI: 10.1111/bpa.12136] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 02/25/2014] [Indexed: 01/05/2023] Open
Abstract
Medulloblastoma is the most frequent malignant central nervous system tumor in children. MicroRNAs (miRs) are small, non-coding RNAs that target protein-coding and non-coding RNAs, and play roles in a variety of cellular processes through regulation of multiple targets. In the present study, we analyzed miR-22 expression and its effect in cell proliferation and apoptosis in medulloblastomas. Quantitative reverse transcription PCR (RT-PCR) revealed significantly lower expression of miR-22 in 19 out of 27 (70%) medulloblastomas, D341, DAOY, ONS-76 medulloblastoma cell lines, compared with normal cerebellum. Forced expression of miR-22 by lentiviral vector transfection reduced cell proliferation and induced apoptosis, while knockdown of miR-22 increased proliferative activity in DAOY and ONS-76 cells. DAOY cells with miR-22 overexpression in nude mice yielded tumors smaller than those originated from control DAOY cells. Microarray analysis in DAOY cells with forced miR-22 expression showed significant changes in expression profiles, PAPST1 being the most significantly (10 folds) downregulated gene. Quantitative RT-PCR revealed PAPST1 mRNA upregulation in 18 out of 27 (67%) medulloblastomas. In addition, a luciferase reporter assay in ONS-76 and DAOY cells suggested that miR-22 directly targets the PAPST1 gene, and lentivirus-mediated knockdown of PAPST1 suppressed proliferation of DAOY and ONS-76 medulloblastoma cells. These results suggest that frequently downregulated miR-22 expression is associated with cell proliferation in medulloblastomas, and this may be at least in part via PAPST1, which is a novel target of miR-22.
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Affiliation(s)
- Qing‐Fu Xu
- Department of NeurosurgeryXinqiao HospitalThird Military Medical UniversityChongqingChina
| | - Ya‐Wen Pan
- Department of NeurosurgeryThe Second HospitalLanzhou UniversityLanzhouChina
| | - Li‐Chao Li
- Department of NeurosurgeryThe First HospitalLanzhou UniversityLanzhouChina
| | - Zheng Zhou
- Department of NeurosurgeryXinqiao HospitalThird Military Medical UniversityChongqingChina
| | - Qi‐Lin Huang
- Department of NeurosurgeryXinqiao HospitalThird Military Medical UniversityChongqingChina
| | - Jesse Chung‐sean Pang
- Department of Anatomical and Cellular PathologyThe Chinese University of Hong KongHong Kong
| | - Xiao‐Peng Zhu
- Department of NeurosurgeryXinqiao HospitalThird Military Medical UniversityChongqingChina
| | - Yong Ren
- Institute of Pathology and Southwest Cancer CenterSouthwest HospitalThird Military Medical UniversityChongqingChina
| | - Hui Yang
- Department of NeurosurgeryXinqiao HospitalThird Military Medical UniversityChongqingChina
| | - Hiroko Ohgaki
- Section of Molecular PathologyInternational Agency for Research on CancerLyonFrance
| | - Sheng‐Qing Lv
- Department of NeurosurgeryXinqiao HospitalThird Military Medical UniversityChongqingChina
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6q22.1 microdeletion and susceptibility to pediatric epilepsy. Eur J Hum Genet 2014; 23:173-9. [PMID: 24824130 DOI: 10.1038/ejhg.2014.75] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 03/04/2014] [Accepted: 03/07/2014] [Indexed: 12/31/2022] Open
Abstract
Genomic copy-number variations (CNVs) constitute an important cause of epilepsies and other human neurological disorders. Recent advancement of technologies integrating genome-wide CNV mapping and sequencing is rapidly expanding the molecular field of pediatric neurodevelopmental disorders. In a previous study, a novel epilepsy locus was identified on 6q16.3q22.31 by linkage analysis in a large pedigree. Subsequent array comparative genomic hybridization (array CGH) analysis of four unrelated cases narrowed this region to ∼5 Mb on 6q22.1q22.31. We sought to further narrow the critical region on chromosome 6q22. Array CGH analysis was used in genome-wide screen for CNVs of a large cohort of patients with neurological abnormalities. Long-range PCR and DNA sequencing were applied to precisely map chromosomal deletion breakpoints. Finally, real-time qPCR was used to estimate relative expression in the brain of the candidate genes. We identified six unrelated patients with overlapping microdeletions within 6q22.1q22.31 region, three of whom manifested seizures. Deletions were found to be de novo in 5/6 cases, including all subjects presenting with seizures. We sequenced the deletion breakpoints in four patients and narrowed the critical region to a ∼250-kb segment at 6q22.1 that includes NUS1, several expressed sequence tags (ESTs) that are highly expressed in the brain, and putative regulatory sequences of SLC35F1. Our findings indicate that dosage alteration in particular, of NUS1, EST AI858607, or SLC35F1 are important contributors to the neurodevelopmental phenotype associated with 6q22 deletion, including epilepsy and tremors.
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Zhang K, Huentelman MJ, Rao F, Sun EI, Corneveaux JJ, Schork AJ, Wei Z, Waalen J, Miramontes-Gonzalez JP, Hightower CM, Maihofer AX, Mahata M, Pastinen T, Ehret GB, Schork NJ, Eskin E, Nievergelt CM, Saier MH, O'Connor DT. Genetic implication of a novel thiamine transporter in human hypertension. J Am Coll Cardiol 2014; 63:1542-55. [PMID: 24509276 DOI: 10.1016/j.jacc.2014.01.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/29/2013] [Accepted: 01/07/2014] [Indexed: 12/27/2022]
Abstract
OBJECTIVES This study coupled 2 strategies-trait extremes and genome-wide pooling-to discover a novel blood pressure (BP) locus that encodes a previously uncharacterized thiamine transporter. BACKGROUND Hypertension is a heritable trait that remains the most potent and widespread cardiovascular risk factor, although details of its genetic determination are poorly understood. METHODS Representative genomic deoxyribonucleic acid (DNA) pools were created from male and female subjects in the highest- and lowest-fifth percentiles of BP in a primary care population of >50,000 patients. The peak associated single-nucleotide polymorphisms were typed in individual DNA samples, as well as in twins/siblings phenotyped for cardiovascular and autonomic traits. Biochemical properties of the associated transporter were evaluated in cellular assays. RESULTS After chip hybridization and calculation of relative allele scores, the peak associations were typed in individual samples, revealing an association between hypertension, systolic BP, and diastolic BP and the previously uncharacterized solute carrier SLC35F3. The BP genetic association at SLC35F3 was validated by meta-analysis in an independent sample from the original source population, as well as the International Consortium for Blood Pressure Genome-Wide Association Studies (across North America and western Europe). Sequence homology to a putative yeast thiamine (vitamin B1) transporter prompted us to express human SLC35F3 in Escherichia coli, which catalyzed [(3)H]-thiamine uptake. SLC35F3 risk-allele homozygotes (T/T) displayed decreased erythrocyte thiamine content on microbiological assay. In twin pairs, the SLC35F3 risk allele predicted heritable cardiovascular traits previously associated with thiamine deficiency, including elevated cardiac stroke volume with decreased vascular resistance, and elevated pressor responses to environmental (cold) stress. Allelic expression imbalance confirmed that cis variation at the human SLC35F3 locus influenced expression of that gene, and the allelic expression imbalance peak coincided with the hypertension peak. CONCLUSIONS Novel strategies were coupled to position a new hypertension-susceptibility locus, uncovering a previously unsuspected thiamine transporter whose genetic variants predicted several disturbances in cardiac and autonomic function. The results have implications for the pathogenesis and treatment of systemic hypertension.
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Affiliation(s)
- Kuixing Zhang
- Department of Medicine, University of California at San Diego (UCSD), La Jolla, California
| | - Matthew J Huentelman
- Division of Neurogenomics, Translational Genomics Research Institute, Phoenix, Arizona
| | - Fangwen Rao
- Department of Medicine, University of California at San Diego (UCSD), La Jolla, California
| | - Eric I Sun
- Department of Biology, UCSD, La Jolla, California
| | - Jason J Corneveaux
- Division of Neurogenomics, Translational Genomics Research Institute, Phoenix, Arizona
| | - Andrew J Schork
- Department of Medicine, University of California at San Diego (UCSD), La Jolla, California
| | - Zhiyun Wei
- Department of Medicine, University of California at San Diego (UCSD), La Jolla, California
| | - Jill Waalen
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California
| | | | - C Makena Hightower
- Department of Medicine, University of California at San Diego (UCSD), La Jolla, California
| | - Adam X Maihofer
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California; Departments of Human and Medical Genetics, McGill University and Génome Québec Innovation Centre, Montréal, Québec, Canada
| | - Manjula Mahata
- Department of Medicine, University of California at San Diego (UCSD), La Jolla, California
| | - Tomi Pastinen
- Departments of Human and Medical Genetics, McGill University and Génome Québec Innovation Centre, Montréal, Québec, Canada
| | - Georg B Ehret
- Center for Complex Disease Genomics, McKusick-Nathans, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | | - Nicholas J Schork
- Department of Psychiatry, UCSD, La Jolla, California; Departments of Computer Science and Human Genetics, University of California at Los Angeles, Los Angeles, California
| | - Eleazar Eskin
- Departments of Human and Medical Genetics, McGill University and Génome Québec Innovation Centre, Montréal, Québec, Canada
| | - Caroline M Nievergelt
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California; Departments of Human and Medical Genetics, McGill University and Génome Québec Innovation Centre, Montréal, Québec, Canada
| | | | - Daniel T O'Connor
- Department of Medicine, University of California at San Diego (UCSD), La Jolla, California; Veterans Affairs San Diego Healthcare System, San Diego, California; Department of Pharmacology and the Institute for Genomic Medicine, UCSD, La Jolla, California.
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Edvardson S, Ashikov A, Jalas C, Sturiale L, Shaag A, Fedick A, Treff NR, Garozzo D, Gerardy-Schahn R, Elpeleg O. Mutations in SLC35A3 cause autism spectrum disorder, epilepsy and arthrogryposis. J Med Genet 2013; 50:733-9. [PMID: 24031089 DOI: 10.1136/jmedgenet-2013-101753] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND The heritability of autism spectrum disorder is currently estimated at 55%. Identification of the molecular basis of patients with syndromic autism extends our understanding of the pathogenesis of autism in general. The objective of this study was to find the gene mutated in eight patients from a large kindred, who suffered from autism spectrum disorder, arthrogryposis and epilepsy. METHODS AND RESULTS By linkage analysis and exome sequencing, we identified deleterious mutations in SLC35A3 in these patients. SLC35A3 encodes the major Golgi uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) transporter. In Golgi vesicles isolated from patient fibroblasts the transport of the respective nucleotide sugar was significantly reduced causing a massive decrease in the content of cell surface expressed highly branched N-glycans and a concomitant sharp increase of lower branched glycoforms. CONCLUSIONS Spontaneous mutation in SLC35A3 has been discovered in cattle worldwide, recapitulating the human phenotype with arthrogryposis and additional skeletal defects known as Complex Vertebral Malformation syndrome. The skeletal anomalies in the mutant cattle and in our patients, and perhaps even the neurological symptoms are likely the consequence of the lack of high-branched N-glycans and the concomitant abundance of lower-branched glycoforms at the cell surface. This pattern has previously been associated with growth arrest and induction of differentiation. With this study, we add SLC35A3 to the gene list of autism spectrum disorders, and underscore the crucial importance of UDP-GlcNAc in the regulation of the N-glycan branching pathway in the Golgi apparatus.
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Affiliation(s)
- Simon Edvardson
- Monique and Jacques Roboh, Department of Genetic Research, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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Xu YX, Ma A, Liu L. Transforming growth factor β signaling upregulates the expression of human GDP-fucose transporter by activating transcription factor Sp1. PLoS One 2013; 8:e74424. [PMID: 24069312 PMCID: PMC3771962 DOI: 10.1371/journal.pone.0074424] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 08/01/2013] [Indexed: 11/18/2022] Open
Abstract
GDP-fucose transporter plays a crucial role in fucosylation of glycoproteins by providing activated fucose donor, GDP-fucose, for fucosyltransferases in the lumen of the Golgi apparatus. Fucose-containing glycans are involved in many biological processes, which are essential for growth and development. Mutations in the GDP-fucose transporter gene cause leukocyte adhesion deficiency syndrome II, a disease characterized by slow growth, mental retardation and immunodeficiency. However, no information is available regarding its transcriptional regulation. Here, by using human cells, we show that TGF-β1 specifically induces the GDP-fucose transporter expression, but not other transporters tested such as CMP-sialic acid transporter, suggesting a diversity of regulatory pathways for the expression of these transporters. The regulatory elements that are responsive to the TGF-β1 stimulation are present in the region between bp -330 and -268 in the GDP-fucose transporter promoter. We found that this region contains two identical octamer GC-rich motifs (GGGGCGTG) that were demonstrated to be essential for the transporter expression. We also show that the transcription factor Sp1 specifically binds to the GC-rich motifs in vitro and Sp1 coupled with phospho-Smad2 is associated with the promoter region covering the Sp1-binding motifs in vivo using chromatin immunoprecipitation (ChIP) assays. In addition, we further confirmed that Sp1 is essential for the GDP-fucose transporter expression stimulated by TGF-β1 using a luciferase reporter system. These results highlight the role of TGF-β signaling in regulation of the GDP-fucose transporter expression via activating Sp1. This is the first transcriptional study for any nucleotide sugar transporters that have been identified so far. Notably, TGF-β1 receptor itself is known to be modified by fucosylation. Given the essential role of GDP-fucose transporter in fucosylation, the finding that TGF-β1 stimulates the expression of this transporter, suggests a possible intracellular link between the function of nucleotide sugar transporter and the TGF-β signaling pathway.
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Affiliation(s)
- Yu-Xin Xu
- Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America
- Center for Human Genetic Research and Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Anna Ma
- Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America
| | - Li Liu
- Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America
- * E-mail:
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Song Z. Roles of the nucleotide sugar transporters (SLC35 family) in health and disease. Mol Aspects Med 2013; 34:590-600. [PMID: 23506892 DOI: 10.1016/j.mam.2012.12.004] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 12/10/2012] [Indexed: 12/29/2022]
Abstract
Nucleotide sugars and adenosine 3'-phospho 5'-phosphosulfate (PAPS) are transported from the cytosol to the endoplasmic reticulum (ER) and the Golgi apparatus where they serve as substrates for the glycosylation and sulfation of proteins, lipids and proteoglycans. The translocation is accomplished by the nucleotide sugar transporters (NSTs), a family of highly conserved hydrophobic proteins with multiple transmembrane domains that are part of the solute carrier family 35 (SLC35). NSTs are antiporters responsible not only for transporting nucleotide sugars and PAPS into the Golgi, but also for the transport of the reaction products back to the cytosol. The initial reaction products - the nucleoside diphosphates - must be first converted to nucleoside monophosphates by a group of enzymes called ectonucleoside triphosphate diphosphohydrolases (ENTPDs) before they can exit the Golgi. The transport role of NSTs is essential to glycosylation and development. Mutations in two NST genes, SLC35A1 and SLC35C1, have been related to congenital disorder of glycosylation II (CDG II).
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Affiliation(s)
- Zhiwei Song
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A∗STAR), 20 Biopolis Way, #06-01 Centros, Singapore 138668, Singapore.
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Influence on the behavior of lung cancer H1299 cells by silencing SLC35F2 expression. Cancer Cell Int 2013; 13:73. [PMID: 23879892 PMCID: PMC3724707 DOI: 10.1186/1475-2867-13-73] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 07/15/2013] [Indexed: 11/17/2022] Open
Abstract
Background To investigate the effects of RNA interference-mediated downregulation of Human Solute Carrier Family 35 member F2 (SLC35F2) expression on the biological behavior of lung cancer H1299 cells. Methods The lentiviral vector of small interfering RNA targeting SLC35F2 was introduced into H1299 cells by liposome-mediated transfection. Expression of the SLC35F2 protein was measured by western blot. The proliferation of H1299 cells was determined by Cell Counting Kit-8 assay. The migration of H1299 cells was measured by Transwell migration assay. Cell cycle analysis used fluorescence-activated cell sorting. Results SLC35F2 expression was markedly downregulated in H1299 cell clone (transfected with the lentiviral vector harboring small interfering RNA targeting SLC35F2). Proliferation decreased significantly compared with that of non-transfected H1299 cells. Transwell migration assay showed that fewer cells moved through the artificial basement membrane compared with untransfected H1299 cells (38.3 ± 5.7 vs. 113.5 ± 8.5, P < 0.05). The cell cycle of H1299 cells was changed, the percentage of H1299 cells in S and G2/M phases being significantly decreased compared with untransfected H1299 cells (S phase: 15.3% ± 3.0% vs. 27.0% ± 5.4%, P > 0.05; G2/M phase; 3.0% ± 1.1% vs. 10.5% ± 1.7%, P < 0.05), whereas the percentage of H1299 cells in G0/G1 phase increased markedly (81.7% ± 4.0% vs. 62.5% ± 1.9%, P < 0.05). Conclusion RNA interference-mediated downregulation of SLC35F2 expression by lentiviral vector can attenuate the proliferation, migration and invasion of H1299 cells.
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Kuze J, Mutoh T, Takenaka T, Oda N, Hanioka N, Narimatsu S. Evaluation of animal models for intestinal first-pass metabolism of drug candidates to be metabolized by CYP3A enzymes via in vivo and in vitro oxidation of midazolam and triazolam. Xenobiotica 2013; 43:598-606. [PMID: 23282066 DOI: 10.3109/00498254.2012.751517] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
1. To search an appropriate evaluation methodology for the intestinal first-pass metabolism of new drug candidates, grapefruit juice (GFJ)- and vehicle (tap water)-pretreated mice or rats were orally administered midazolam (MDZ) or triazolam (TRZ), and blood levels of the parent compounds and their metabolites were measured by liquid chromatography/MS/MS. A significant effect of GFJ to elevate the blood levels was observed only for TRZ in mice. 2. In vitro experiments using mouse, rat and human intestinal and hepatic microsomal fractions demonstrated that GFJ suppressed the intestinal microsomal oxidation of MDZ and especially TRZ. Substrate inhibition by MDZ caused reduction in 1'-hydroxylation but not 4-hydroxylation in both intestinal and hepatic microsomal fractions. The kinetic profiles of MDZ oxidation and the substrate inhibition in mouse intestinal and hepatic microsomal fractions were very similar to those in human microsomes but were different from those in rat microsomes. Furthermore, MDZ caused mechanism-based inactivation of cytochrome P450 3A-dependent TRZ 1'-hydroxylation in mouse, rat and human intestinal microsomes with similar potencies. 3. These results are useful information in the analysis of data obtained in mouse and rat for the evaluation of first-pass effects of drug candidates to be metabolized by CYP3A enzymes.
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Affiliation(s)
- J Kuze
- Tsukuba Research Center, Taiho Pharmaceutical Company, Ibaraki, Japan
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Bai Y, Bai Y, Matsuzaka K, Hashimoto S, Fukuyama T, Wu L, Miwa T, Liu X, Wang X, Inoue T. Cementum- and periodontal ligament-like tissue formation by dental follicle cell sheets co-cultured with Hertwig's epithelial root sheath cells. Bone 2011; 48:1417-26. [PMID: 21376148 DOI: 10.1016/j.bone.2011.02.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2010] [Revised: 02/22/2011] [Accepted: 02/22/2011] [Indexed: 11/29/2022]
Abstract
Dental follicle cells (DFCs) are believed contain the precursor cells of the periodontium and can form cell sheets by secreting extracellular matrix (ECM) proteins. Cell sheet engineering has been recently developed and applied successfully in the field of tissue regeneration. However, research on the in vitro characteristics of DFC sheets is lacking and an assessment of whether DFC sheets can produce periodontal tissues in vivo has not been reported. To test the characteristics and applicability of DFC sheets in this field, we established a co-culture system of rat DFCs and Hertwig's epithelial root sheath (HERS) cells in vitro, and included the following controls: a co-culture of DFCs and alveolar mucosa epithelial cells, DFCs with no cells in the upper chamber, and DFCs cultured without an upper chamber. After 3 weeks of co-culturing the cells, the DFC sheets were transplanted into adult male rats' omenta. One week after co-culturing DFCs with HERS cells, mRNA levels of collagen type I (COL-1), alkaline phosphatase (ALP), runt related transcription factor 2 (Runx 2) and bone sialoprotein (BSP) were increased significantly. In addition, after 3 weeks of co-culturing the cells, the numbers of ALP-, osteocalcin (OCN)-, BSP- and osteoprotegerin (OPG)-positive DFCs increased. The DFCs also produced more calcified nodules and exhibited an increased number of subcellular organelles, which are important for protein synthesis and secretion. Moreover, gap junctions were found between the experimental DFCs within the sheet. Five weeks of in vivo growth of DFC sheets pre-exposed to HERS cells led to the formation of cementum-like tissues, which were positive for OCN, BSP and OPG, as well as the formation of periodontal ligament-like tissues, which were positive for COL-1. In contrast, control cells only produced fibrous tissues. These results indicate that the DFC sheets induced by HERS cells are able to produce periodontal tissues through epithelial-mesenchymal interactions. Therefore, DFC sheets may be useful in the field of periodontium regeneration.
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Affiliation(s)
- Yudi Bai
- Department of Pediatric Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an, China
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Västermark Å, Almén MS, Simmen MW, Fredriksson R, Schiöth HB. Functional specialization in nucleotide sugar transporters occurred through differentiation of the gene cluster EamA (DUF6) before the radiation of Viridiplantae. BMC Evol Biol 2011; 11:123. [PMID: 21569384 PMCID: PMC3111387 DOI: 10.1186/1471-2148-11-123] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Accepted: 05/12/2011] [Indexed: 02/04/2023] Open
Abstract
Background The drug/metabolite transporter superfamily comprises a diversity of protein domain families with multiple functions including transport of nucleotide sugars. Drug/metabolite transporter domains are contained in both solute carrier families 30, 35 and 39 proteins as well as in acyl-malonyl condensing enzyme proteins. In this paper, we present an evolutionary analysis of nucleotide sugar transporters in relation to the entire superfamily of drug/metabolite transporters that considers crucial intra-protein duplication events that have shaped the transporters. We use a method that combines the strengths of hidden Markov models and maximum likelihood to find relationships between drug/metabolite transporter families, and branches within families. Results We present evidence that the triose-phosphate transporters, domain unknown function 914, uracil-diphosphate glucose-N-acetylglucosamine, and nucleotide sugar transporter families have evolved from a domain duplication event before the radiation of Viridiplantae in the EamA family (previously called domain unknown function 6). We identify previously unknown branches in the solute carrier 30, 35 and 39 protein families that emerged simultaneously as key physiological developments after the radiation of Viridiplantae, including the "35C/E" branch of EamA, which formed in the lineage of T. adhaerens (Animalia). We identify a second cluster of DMTs, called the domain unknown function 1632 cluster, which has non-cytosolic N- and C-termini, and thus appears to have been formed from a different domain duplication event. We identify a previously uncharacterized motif, G-X(6)-G, which is overrepresented in the fifth transmembrane helix of C-terminal domains. We present evidence that the family called fatty acid elongases are homologous to transporters, not enzymes as had previously been thought. Conclusions The nucleotide sugar transporters families were formed through differentiation of the gene cluster EamA (domain unknown function 6) before Viridiplantae, showing for the first time the significance of EamA.
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Affiliation(s)
- Åke Västermark
- Department of Neuroscience, Functional Pharmacology, Uppsala University, BMC, Box 593, 751 24, Uppsala, Sweden.
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Oki NO, Motsinger-Reif AA, Antas PRZ, Levy S, Holland SM, Sterling TR. Novel human genetic variants associated with extrapulmonary tuberculosis: a pilot genome wide association study. BMC Res Notes 2011; 4:28. [PMID: 21281516 PMCID: PMC3041678 DOI: 10.1186/1756-0500-4-28] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Accepted: 01/31/2011] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Approximately 5-10% of persons infected with M. tuberculosis develop tuberculosis, but the factors associated with disease progression are incompletely understood. Both linkage and association studies have identified human genetic variants associated with susceptibility to pulmonary tuberculosis, but few genetic studies have evaluated extrapulmonary disease. Because extrapulmonary and pulmonary tuberculosis likely have different underlying pathophysiology, identification of genetic mutations associated with extrapulmonary disease is important. FINDINGS We performed a pilot genome-wide association study among 24 persons with previous extrapulmonary tuberculosis and well-characterized immune defects; 24 pulmonary tuberculosis patients and 57 patients with M. tuberculosis infection served as controls. The Affymetrix GeneChip Human Mapping Xba Array was used for genotyping; after careful quality control, genotypes at 44,175 single nucleotide polymorphisms (SNPs) were available for analysis. Eigenstrat quantified population stratification within our sample; logistic regression, using results of the Eigenstrat analysis as a covariate, identified significant associations between groups. Permutation testing controlled the family-wise error rate for each comparison between groups. Four SNPs were significantly associated with extrapulmonary tuberculosis compared to controls with M. tuberculosis infection; one (rs4893980) in the gene PDE11A, one (rs10488286) in KCND2, and one (rs2026414) in PCDH15; one was in chromosome 7 but not associated with a known gene. Two additional variants were significantly associated with extrapulmonary tuberculosis compared with pulmonary tuberculosis; one (rs340708) in the gene FAM135B and one in chromosome 13 but not associated with a known gene. The function of all four genes affects cell signaling and activity, including in the brain. CONCLUSIONS In this pilot study, we identified 6 novel variants not previously known to be associated with extrapulmonary tuberculosis, including two SNPs more common in persons with extrapulmonary than pulmonary tuberculosis. This provides some support for the hypothesis that the pathogenesis and genetic predisposition to extrapulmonary tuberculosis differs from pulmonary tuberculosis. Further study of these novel SNPs, and more well-powered genome-wide studies of extrapulmonary tuberculosis, is warranted.
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Affiliation(s)
- Noffisat O Oki
- Bioinformatics Research Center, Department of Statistics, North Carolina State University, Raleigh, NC, USA
| | - Alison A Motsinger-Reif
- Bioinformatics Research Center, Department of Statistics, North Carolina State University, Raleigh, NC, USA
| | - Paulo RZ Antas
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Shawn Levy
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Steven M Holland
- Laboratory of Clinical Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Timothy R Sterling
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
- Center for Health Services Research, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
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Nishimura M, Ejiri Y, Kishimoto S, Suzuki S, Satoh T, Horie T, Narimatsu S, Naito S. Expression Levels of Drug-Metabolizing Enzyme, Transporter, and Nuclear Receptor mRNAs in a Novel Three-Dimensional Culture System for Human Hepatocytes Using Micro-space Plates. Drug Metab Pharmacokinet 2011; 26:137-44. [DOI: 10.2133/dmpk.dmpk-10-rg-069] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bai Y, Bai Y, Matsuzaka K, Hashimoto S, Kokubu E, Wang X, Inoue T. Formation of bone-like tissue by dental follicle cells co-cultured with dental papilla cells. Cell Tissue Res 2010; 342:221-31. [DOI: 10.1007/s00441-010-1046-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2010] [Accepted: 09/01/2010] [Indexed: 01/14/2023]
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Römer P, Weingärtner J, Roldán JC, Proff P, Reicheneder C. Development dependent collagen gene expression in the rat cranial base growth plate. Ann Anat 2010; 192:205-9. [DOI: 10.1016/j.aanat.2010.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Revised: 04/13/2010] [Accepted: 05/19/2010] [Indexed: 10/19/2022]
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Eijgelsheim M, Newton-Cheh C, Sotoodehnia N, de Bakker PIW, Müller M, Morrison AC, Smith AV, Isaacs A, Sanna S, Dörr M, Navarro P, Fuchsberger C, Nolte IM, de Geus EJC, Estrada K, Hwang SJ, Bis JC, Rückert IM, Alonso A, Launer LJ, Hottenga JJ, Rivadeneira F, Noseworthy PA, Rice KM, Perz S, Arking DE, Spector TD, Kors JA, Aulchenko YS, Tarasov KV, Homuth G, Wild SH, Marroni F, Gieger C, Licht CM, Prineas RJ, Hofman A, Rotter JI, Hicks AA, Ernst F, Najjar SS, Wright AF, Peters A, Fox ER, Oostra BA, Kroemer HK, Couper D, Völzke H, Campbell H, Meitinger T, Uda M, Witteman JCM, Psaty BM, Wichmann HE, Harris TB, Kääb S, Siscovick DS, Jamshidi Y, Uitterlinden AG, Folsom AR, Larson MG, Wilson JF, Penninx BW, Snieder H, Pramstaller PP, van Duijn CM, Lakatta EG, Felix SB, Gudnason V, Pfeufer A, Heckbert SR, Stricker BHC, Boerwinkle E, O'Donnell CJ. Genome-wide association analysis identifies multiple loci related to resting heart rate. Hum Mol Genet 2010; 19:3885-94. [PMID: 20639392 DOI: 10.1093/hmg/ddq303] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Higher resting heart rate is associated with increased cardiovascular disease and mortality risk. Though heritable factors play a substantial role in population variation, little is known about specific genetic determinants. This knowledge can impact clinical care by identifying novel factors that influence pathologic heart rate states, modulate heart rate through cardiac structure and function or by improving our understanding of the physiology of heart rate regulation. To identify common genetic variants associated with heart rate, we performed a meta-analysis of 15 genome-wide association studies (GWAS), including 38,991 subjects of European ancestry, estimating the association between age-, sex- and body mass-adjusted RR interval (inverse heart rate) and approximately 2.5 million markers. Results with P < 5 × 10(-8) were considered genome-wide significant. We constructed regression models with multiple markers to assess whether results at less stringent thresholds were likely to be truly associated with RR interval. We identified six novel associations with resting heart rate at six loci: 6q22 near GJA1; 14q12 near MYH7; 12p12 near SOX5, c12orf67, BCAT1, LRMP and CASC1; 6q22 near SLC35F1, PLN and c6orf204; 7q22 near SLC12A9 and UfSp1; and 11q12 near FADS1. Associations at 6q22 400 kb away from GJA1, at 14q12 MYH6 and at 1q32 near CD34 identified in previously published GWAS were confirmed. In aggregate, these variants explain approximately 0.7% of RR interval variance. A multivariant regression model including 20 variants with P < 10(-5) increased the explained variance to 1.6%, suggesting that some loci falling short of genome-wide significance are likely truly associated. Future research is warranted to elucidate underlying mechanisms that may impact clinical care.
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Affiliation(s)
- Mark Eijgelsheim
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
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Römer P, Weingärtner J, Proff P, Roldán JC, Reicheneder C. Profiling type I collagen gene expression in growing mandibular structures. Ann Anat 2010; 192:96-100. [PMID: 20149607 DOI: 10.1016/j.aanat.2009.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2009] [Revised: 11/21/2009] [Accepted: 12/04/2009] [Indexed: 11/19/2022]
Abstract
We conducted a temporal gene expression analysis with type I collagen in the coronoid process, alveolar process and mandibular angle of the rat. We observed gene expression cross-sectionally across different important physiological time points in the rat postnatal life in order to observe in which developmental stage mandibular development mainly occur. This study indicates prominent type I collagen expression at day 10 postpartum in the mandibular ramus and at day 21 in the alveolar process. These findings correspond well with previously obtained data from proliferation studies in facial bone suggesting that craniofacial growth in the rat occurs mainly between days 10 and 21.
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Affiliation(s)
- P Römer
- Department of Orthodontics, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany.
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Nishimura M, Hagi M, Ejiri Y, Kishimoto S, Horie T, Narimatsu S, Naito S. Secretion of Albumin and Induction of CYP1A2 and CYP3A4 in Novel Three-dimensional Culture System for Human Hepatocytes using Micro-space Plate. Drug Metab Pharmacokinet 2010; 25:236-42. [DOI: 10.2133/dmpk.25.236] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nishimura M. [Evaluation of induction of drug-metabolizing enzyme mRNAs in primary cultures of cryopreserved human and cynomolgus monkey hepatocytes]. YAKUGAKU ZASSHI 2009; 129:815-20. [PMID: 19571516 DOI: 10.1248/yakushi.129.815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We introduce a method for measuring drug-metabolizing enzymes and transporters using real-time one-step RT-PCR with TaqMan probes. This method has the advantages of high sensitivity, simplicity, and linearity of quantification over a wide range of mRNA concentrations, making it particularly suitable for evaluating large numbers of samples, as required in expression profile determinations. We also introduce the use of primary cultures of cryopreserved human and cynomolgus monkey hepatocytes as an enzyme induction model. Furthermore, we introduce the combination of real-time one-step RT-PCR and hepatocytes for evaluating the potency of various drugs in inducing drug-metabolizing enzymes and transporters. We discuss the usefulness of evaluating the gene induction of drug-metabolizing enzymes and transporters following exposure to drugs in human and cynomolgus monkey hepatocytes. The combination of real-time one-step RT-PCR and primary cultures of cryopreserved hepatocytes is useful for preclinical drug evaluation and for screening to evaluate the induction potency of new drug candidates.
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Affiliation(s)
- Masuhiro Nishimura
- New Product and Business Development, Research and Development Center, Otsuka Pharmaceutical Factory, Inc., Tokushima, Japan.
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Nishimura M, Narimatsu S, Naito S. Evaluation of Induction Potency of New Drug Candidates on CYP1A2 and CYP3A4 using Real-Time One-Step RT-PCR in Primary Cultures of Cryopreserved Human Hepatocytes. Drug Metab Pharmacokinet 2009; 24:446-50. [DOI: 10.2133/dmpk.24.446] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nishimura M, Koeda A, Morikawa H, Satoh T, Narimatsu S, Naito S. Tissue-Specific mRNA Expression Profiles of Drug-Metabolizing Enzymes and Transporters in the Cynomolgus Monkey. Drug Metab Pharmacokinet 2009; 24:139-44. [DOI: 10.2133/dmpk.24.139] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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