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Sultana T, Mou SI, Chatterjee D, Faruk MO, Hosen MI. Computational exploration of SLC14A1 genetic variants through structure modeling, protein-ligand docking, and molecular dynamics simulation. Biochem Biophys Rep 2024; 38:101703. [PMID: 38596408 PMCID: PMC11001776 DOI: 10.1016/j.bbrep.2024.101703] [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: 02/05/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/11/2024] Open
Abstract
The urea transporter UT-B1, encoded by the SLC14A1 gene, has been hypothesized to be a significant protein whose deficiency and dysfunction contribute to the pathogenesis of bladder cancer and many other diseases. Several studies reported the association of genetic alterations in the SLC14A1 (UT-B1) gene with bladder carcinogenesis, suggesting a need for thorough characterization of the UT-B1 protein's coding and non-coding variants. This study used various computational techniques to investigate the commonly occurring germ-line missense and non-coding SNPs (ncSNPs) of the SLC14A1 gene (UT-B1) for their structural, functional, and molecular implications for disease susceptibility and dysfunctionality. SLC14A1 missense variants, primarily identified from the ENSEMBL genome browser, were screened through twelve functionality prediction tools leading to two variants D280Y (predicted detrimental by maximum tools) and D280N (high global MAF) for rs1058396. Subsequently, the ConSurf and NetSurf tools revealed the D280 residue to be in a variable site and exposed on the protein surface. According to I-Mutant2.0 and MUpro, both variants are predicted to cause a significant effect on protein stability. Analysis of molecular docking anticipated these two variants to decrease the binding affinity of UT-B1 protein for the examined ligands to a significant extent. Molecular dynamics also disclosed the possible destabilization of the UT-B1 protein due to single nucleotide polymorphism compared to wild-type protein which may result in impaired protein function. Furthermore, several non-coding SNPs were estimated to affect transcription factor binding and regulation of SLC14A1 gene expression. Additionally, two ncSNPs were found to affect miRNA-based post-transcriptional regulation by creating new seed regions for miRNA binding. This comprehensive in-silico study of SLC14A1 gene variants may serve as a springboard for future large-scale investigations examining SLC14A1 polymorphisms.
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Affiliation(s)
- Tamanna Sultana
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka-1000, Bangladesh
| | - Sadia Islam Mou
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka-1000, Bangladesh
| | - Dipankor Chatterjee
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka-1000, Bangladesh
| | - Md. Omar Faruk
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka-1000, Bangladesh
| | - Md. Ismail Hosen
- Department of Biochemistry and Molecular Biology, University of Dhaka, Dhaka-1000, Bangladesh
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2
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Ma J, Xue K, Jiang Y, Wang X, He D, Guo P. Down-regulation of SLC14A1 in prostate cancer activates CDK1/CCNB1 and mTOR pathways and promotes tumor progression. Sci Rep 2024; 14:14914. [PMID: 38942821 PMCID: PMC11213927 DOI: 10.1038/s41598-024-66020-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 06/26/2024] [Indexed: 06/30/2024] Open
Abstract
Prostate cancer (PCa) is the most common cancer among men in the United States and the leading cause of cancer-related death. The Solute Carrier Family 14 Member 1 (SLC14A1) is a member of urea transporters which are important for the regulation of urine concentration. However, the physiological significance of SLC14A1 in PCa still remains unclear. In the present study, via bioinformatics analysis and experiments, we found that expression of SLC14A1 is significantly decreased in PCa progression, which could be attributed to hypermethylation on SLC14A1 promoter region. Moreover, its low expression and hypermethylation on SLC14A1 promoter are closely related to the poor prognosis of PCa patients. On the other hand, overexpression of SLC14A1 inhibited cell proliferation and metastasis while its overexpression also suppressed CDK1/CCNB1 pathway and mTOR/MMP-9 signaling pathway. Additionally, SLC14A1 expression is enriched in prostate basal-type cells. In summary, our study indicates that its low expression level and promoter hypermethylation of SLC14A1 may represent novel indicators for PCa progression and prognosis, and SLC14A1 could inhibit the progression of PCa.
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Affiliation(s)
- Jianbin Ma
- Department of Urology, Qujiang Hospital, Northwest Corner of Huang Qutou Road Number Two and Changming Road, Xi'an, 710061, Shaanxi, China
| | - Kaihua Xue
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yan-Ta West Road, Xi'an, 710061, Shaanxi, China
| | - Yifan Jiang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yan-Ta West Road, Xi'an, 710061, Shaanxi, China
| | - Xinyang Wang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yan-Ta West Road, Xi'an, 710061, Shaanxi, China
| | - Dalin He
- Department of Urology, Qujiang Hospital, Northwest Corner of Huang Qutou Road Number Two and Changming Road, Xi'an, 710061, Shaanxi, China.
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yan-Ta West Road, Xi'an, 710061, Shaanxi, China.
| | - Peng Guo
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yan-Ta West Road, Xi'an, 710061, Shaanxi, China.
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Sanya DRA, Onésime D. Roles of non-coding RNAs in the metabolism and pathogenesis of bladder cancer. Hum Cell 2023:10.1007/s13577-023-00915-5. [PMID: 37209205 DOI: 10.1007/s13577-023-00915-5] [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: 01/29/2023] [Accepted: 05/07/2023] [Indexed: 05/22/2023]
Abstract
Bladder cancer (BC) is featured as the second most common malignancy of the urinary tract worldwide with few treatments leading to high incidence and mortality. It stayed a virtually intractable disease, and efforts to identify innovative and effective therapies are urgently needed. At present, more and more evidence shows the importance of non-coding RNA (ncRNA) for disease-related study, diagnosis, and treatment of diverse types of malignancies. Recent evidence suggests that dysregulated functions of ncRNAs are closely associated with the pathogenesis of numerous cancers including BC. The detailed mechanisms underlying the dysregulated role of ncRNAs in cancer progression are still not fully understood. This review mainly summarizes recent findings on regulatory mechanisms of the ncRNAs, long non-coding RNAs, microRNAs, and circular RNAs, in cancer progression or suppression and focuses on the predictive values of ncRNAs-related signatures in BC clinical outcomes. A deeper understanding of the ncRNA interactive network could be compelling framework for developing biomarker-guided clinical trials.
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Affiliation(s)
- Daniel Ruben Akiola Sanya
- Micalis Institute, Diversité génomique et fonctionnelle des levures, domaine de Vilvert, Université Paris-Saclay, INRAE, AgroParisTech, 78350, Jouy-en-Josas, France.
| | - Djamila Onésime
- Micalis Institute, Diversité génomique et fonctionnelle des levures, domaine de Vilvert, Université Paris-Saclay, INRAE, AgroParisTech, 78350, Jouy-en-Josas, France
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4
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Guo Z, Niu X, Fu G, Yang B, Chen G, Sun S. SLC14A1 (UT-B) gene rearrangement in urothelial carcinoma of the bladder: a case report. Diagn Pathol 2020; 15:94. [PMID: 32703295 PMCID: PMC7376696 DOI: 10.1186/s13000-020-01009-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/14/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Bladder cancer (BC) is a common and deadly disease. Over the past decade, a number of genetic alterations have been reported in BC. Bladder urothelium expresses abundant urea transporter UT-B encoded by Slc14a1 gene at 18q12.3 locus, which plays an important role in preventing high concentrated urea-caused cell injury. Early genome-wide association studies (GWAS) showed that UT-B gene mutations are genetically linked to the urothelial bladder carcinoma (UBC). In this study, we examined whether Slc14a1 gene has been changed in UBC, which has never been reported. CASE PRESENTATION A 59-year-old male was admitted to a hospital with the complaint of gross hematuria for 6 days. Ultrasonography revealed a size of 2.8 × 1.7 cm mass lesion located on the rear wall and dome of the bladder. In cystoscopic examination, papillary tumoral lesions 3.0-cm in total diameter were seen on the left wall of the bladder and 2 cm to the left ureteric orifice. Transurethral resection of bladder tumor (TURBT) was performed. Histology showed high-grade non-muscle invasive UBC. Immunostaining was negative for Syn, CK7, CK20, Villin, and positive for HER2, BRCA1, GATA3. Using a fluorescence in situ hybridization (FISH), Slc14a1 gene rearrangement was identified by a pair of break-apart DNA probes. CONCLUSIONS We for the first time report a patient diagnosed with urothelial carcinoma accompanied with split Slc14a1 gene abnormality, a crucial gene in bladder.
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Affiliation(s)
- Zhongying Guo
- Department of Pathology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Xiaobing Niu
- Department of Urology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Guangbo Fu
- Department of Urology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Baoxue Yang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Guangping Chen
- Department of Physiology, Emory University School of Medicine, Atlanta, GA, 30322, USA.
| | - Su'an Sun
- Department of Pathology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
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Chang C, Sung CY, Hsiao H, Chen J, Chen IH, Kuo WT, Cheng LF, Korla PK, Chung MJ, Wu PJ, Yu CC, Sheu JJC. HDMAC: A Web-Based Interactive Program for High-Dimensional Analysis of Molecular Alterations in Cancer. Sci Rep 2020; 10:3953. [PMID: 32127576 PMCID: PMC7054321 DOI: 10.1038/s41598-020-60791-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 02/12/2020] [Indexed: 12/24/2022] Open
Abstract
Recent advances in high-throughput genomic technologies have nurtured a growing demand for statistical tools to facilitate identification of molecular changes as potential prognostic biomarkers or drugable targets for personalized precision medicine. In this study, we developed a web-based interactive and user-friendly platform for high-dimensional analysis of molecular alterations in cancer (HDMAC) (https://ripsung26.shinyapps.io/rshiny/). On HDMAC, several penalized regression models that are suitable for high-dimensional data analysis, Ridge, Lasso and adaptive Lasso, are offered, with Cox regression for survival and logistic regression for binary outcomes. Choice of a first-step screening is provided to address the multiple-comparison issue that often arises with large-volume genomic data. Hazard ratio or estimated coefficient is provided with each selected gene so that a multivariate regression model may be built based on the genes selected. Cross validation is provided as the method to estimate the prediction power of each regression model. In addition, R codes are also provided to facilitate download of whole sets of molecular variables from TCGA. In this study, illustration of the use of HDMAC was made through a set of data on gene mutations and a set on mRNA expression from ovarian cancer patients and a set on mRNA expression from bladder cancer patient. From the analysis of each set of data, a list of candidate genes was obtained that might be associated with mutations or abnormal expression of genes in ovarian and bladder cancers. HDMAC offers a solution for rigorous and validation analysis of high-dimensional genomic data.
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Affiliation(s)
- Chung Chang
- Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
| | - Chan-Yu Sung
- Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
| | - Han Hsiao
- Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
| | - Jiabin Chen
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
| | - I-Hsuan Chen
- Division of Transplant Surgery/Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan, ROC
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung County, 90741, Taiwan, ROC
- School of Medicine, National Yang-Ming University, Taipei, 112, Taiwan, ROC
| | - Wei-Ting Kuo
- Division of Transplant Surgery/Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan, ROC
| | - Lung-Feng Cheng
- Division of Transplant Surgery/Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan, ROC
| | - Praveen Kumar Korla
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
| | - Ming-Jhe Chung
- Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
| | - Pei-Jhen Wu
- Department of Applied Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
| | - Chia-Cheng Yu
- Division of Transplant Surgery/Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan, ROC.
- Department of Pharmacy, College of Pharmacy and Health Care, Tajen University, Pingtung County, 90741, Taiwan, ROC.
- School of Medicine, National Yang-Ming University, Taipei, 112, Taiwan, ROC.
- Division of Transplant Surgery/Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, 114, Taiwan, ROC.
| | - Jim Jinn-Chyuan Sheu
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC.
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan, ROC.
- School of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan, ROC.
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, 41354, Taiwan, ROC.
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Yu L, Liu T, Fu S, Li L, Meng X, Su X, Xie Z, Ren J, Meng Y, Lv X, Du Y. Physiological functions of urea transporter B. Pflugers Arch 2019; 471:1359-1368. [PMID: 31734718 PMCID: PMC6882768 DOI: 10.1007/s00424-019-02323-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 11/04/2022]
Abstract
Urea transporters (UTs) are membrane proteins in the urea transporter protein A (UT-A) and urea transporter protein B (UT-B) families. UT-B is mainly expressed in endothelial cell membrane of the renal medulla and in other tissues, including the brain, heart, pancreas, colon, bladder, bone marrow, and cochlea. UT-B is responsible for the maintenance of urea concentration, male reproductive function, blood pressure, bone metabolism, and brain astrocyte and cardiac functions. Its deficiency and dysfunction contribute to the pathogenesis of many diseases. Actually, UT-B deficiency increases the sensitivity of bladder epithelial cells to apoptosis triggers in mice and UT-B-null mice develop II-III atrioventricular block and depression. The expression of UT-B in the rumen of cow and sheep may participate in digestive function. However, there is no systemic review to discuss the UT-B functions. Here, we update research approaches to understanding the functions of UT-B.
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Affiliation(s)
- Lanying Yu
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Tiantian Liu
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Shuang Fu
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Li Li
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Xiaoping Meng
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Xin Su
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Zhanfeng Xie
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Jiayan Ren
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China
| | - Yan Meng
- Department of Pathophysiology, College of Basic Medicine, Jilin University, Changchun, 130021, Jilin, People's Republic of China.
| | - Xuejiao Lv
- Department of Respiratory Medicine, the Second Affiliated Hospital of Jilin University, Changchun, 130041, Jilin, People's Republic of China.
| | - Yanwei Du
- Changchun University of Chinese Medicine, Changchun, 130117, People's Republic of China.
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Farrell A, Stewart G. Osmotic regulation of UT-B urea transporters in the RT4 human urothelial cell line. Physiol Rep 2019; 7:e14314. [PMID: 31872572 PMCID: PMC6928247 DOI: 10.14814/phy2.14314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 11/17/2019] [Indexed: 01/23/2023] Open
Abstract
Facilitative UT-B urea transporters play important physiological roles in numerous tissues, including the urino-genital tract. Previous studies have shown that urothelial UT-B transporters are crucial to bladder function in a variety of mammalian species. Using the RT4 bladder urothelial cell line, this study investigated the potential osmotic regulation of human UT-B transporters. Initial end-point PCR experiments confirmed expression of both UT-B1 and UT-B2 transcripts in RT4 cells. Western blotting analysis revealed glycosylated UT-B protein to be highly abundant and immunolocalization experiments showed it was predominantly located on the plasma membrane. Further PCR experiments suggested that a 48 hr, NaCl-induced raise in external osmolality increased expression of UT-B transcripts. Importantly, these NaCl-induced changes also significantly increased UT-B protein abundance (p < .01, n = 7, ANOVA), whereas mannitol-induced changes in external osmolality had no effect (NS, n = 4, ANOVA). Finally, similar increases in both UT-B RNA expression and protein abundance were observed with urea-induced changes to external osmolality (p < .05, n = 4, ANOVA). In conclusion, these findings strongly suggest that increases in external osmolality, via either NaCl or urea, can regulate human urothelial UT-B transporters.
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Affiliation(s)
- Alan Farrell
- School of Biology & Environmental ScienceScience Centre WestUniversity College DublinDublin 4Ireland
| | - Gavin Stewart
- School of Biology & Environmental ScienceScience Centre WestUniversity College DublinDublin 4Ireland
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Manso M, Drake MJ, Fry CH, Conway M, Hancock JT, Vahabi B. Expression and localization of aquaporin water channels in adult pig urinary bladder. J Cell Mol Med 2019; 23:3772-3775. [PMID: 30912214 PMCID: PMC6484294 DOI: 10.1111/jcmm.14256] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 02/07/2019] [Accepted: 02/09/2019] [Indexed: 12/29/2022] Open
Affiliation(s)
- Marian Manso
- Department of Applied Sciences, Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK
| | - Marcus J Drake
- School of Physiology, Pharmacology and Neuroscience, Faculty of Biomedical Sciences, University of Bristol, University Walk, Bristol, UK
| | - Chris H Fry
- School of Physiology, Pharmacology and Neuroscience, Faculty of Biomedical Sciences, University of Bristol, University Walk, Bristol, UK
| | - Myra Conway
- Department of Applied Sciences, Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK
| | - John T Hancock
- Department of Applied Sciences, Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK
| | - Bahareh Vahabi
- Department of Applied Sciences, Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK
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Walpole C, McGrane A, Al‐mousawi H, Winter D, Baird A, Stewart G. Investigation of facilitative urea transporters in the human gastrointestinal tract. Physiol Rep 2018; 6:e13826. [PMID: 30101448 PMCID: PMC6087735 DOI: 10.14814/phy2.13826] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 07/12/2018] [Accepted: 07/16/2018] [Indexed: 01/10/2023] Open
Abstract
The symbiotic relationship between humans and their intestinal microbiome is supported by urea nitrogen salvaging. Previous studies have shown that colonic UT-B urea transporters play a significant role in this important physiological process. This current study investigated UT-A and UT-B urea transporter expression along the human gastrointestinal tract. Initial end-point PCR experiments determined that UT-A RNA was predominantly expressed in the small intestine, while UT-B RNA was expressed in stomach, small intestine, and colon. Using western blotting experiments, a strong 40-60 kDa UT-B signal was found to be abundant in both ileum and colon. Importantly, this signal was deglycosylated by PNGaseF enzyme treatment to a core protein of 30 kDa in both tissues. Further immunolocalization studies revealed UT-B transporter proteins were present at the apical membrane of the villi in the ileum, but predominantly at the basolateral membrane of the colonic surface epithelial cells. Finally, a blind scoring immunolocalization study suggested that there was no significant difference in UT-B abundance throughout the colon (NS, ANOVA, N = 5-21). In conclusion, this current study suggested UT-B to be the main human intestinal urea transporter. Intriguingly, these data suggested that the same UT-B isoform was present in all intestinal epithelial cells, but that the precise cellular location varied.
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Affiliation(s)
- Caragh Walpole
- School of Biology & Environmental ScienceUniversity College DublinDublinIreland
| | - Alison McGrane
- School of Biology & Environmental ScienceUniversity College DublinDublinIreland
| | | | - Desmond Winter
- Institute for Clinical Outcomes Research and EducationSt. Vincent's University HospitalDublinIreland
| | - Alan Baird
- College of Life SciencesConway Institute of Biomedical and Biomolecular ScienceDublinIreland
| | - Gavin Stewart
- School of Biology & Environmental ScienceUniversity College DublinDublinIreland
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