1
|
Jiang M, Wang X, Chen Z, Wang X, An Y, Ding L, Xu M, Fan B, Jiao P, Wang C, Wang M, Sun H, Zhao S, Gong Y. Lipolysis-Stimulated Lipoprotein Receptor in Proximal Tubule, BMP-SMAD Signaling, and Kidney Disease. J Am Soc Nephrol 2024:00001751-990000000-00321. [PMID: 38809616 DOI: 10.1681/asn.0000000000000382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 05/14/2024] [Indexed: 05/31/2024] Open
Abstract
Key Points
We identify that lipolysis-stimulated lipoprotein receptor is highly enriched in the nucleus of mouse and human kidney.This study provides new insights into the role of lipolysis-stimulated lipoprotein receptor in kidney disease.
Background
Lipolysis-stimulated lipoprotein receptor (LSR) is a single-pass membrane protein that plays essential roles in tricellular tight junction organization in the epithelium and endothelium, but its function in kidney physiology and disease development remains unknown.
Methods
Conditional Lsr deletion mice were generated and analyzed to investigate the function of LSR in proximal tubule. Unilateral ischemia-reperfusion was used as an injury model to investigate the role of LSR in AKI and the progression to CKD. Detailed mechanistic analyses were conducted using whole-transcriptome RNA sequencing, immunofluorescence, dual-luciferase reporter gene assay, coimmunoprecipitation, RNA immunoprecipitation, and adeno-associated virus-mediated gene overexpression and knockdown.
Results
The nuclear localization of LSR was found in the kidney. Proximal tubule–specific Lsr knockout mice exhibited alleviated kidney damage and fibrosis compared with those in wild-type mice in response unilateral ischemia-reperfusion injury. Loss of LSR resulted in downregulation of Chrdl1 and activation of bone morphogenetic protein (BMP)-mothers against decapentaplegic homolog (SMAD) signaling in proximal tubules. Treatment with CHRDL1 counteracted the protective effect of LSR deletion in the unilaterally ischemic injured kidney. In addition, the systemic delivery of Chrdl1 short hairpin RNA attenuated injury-induced kidney fibrosis. LSR formed a complex with 14-3-3θ in the nucleus of proximal tubular cells, thereby reducing the interaction between human antigen R and 14-3-3θ, consequently leading to the translocation of unbound human antigen R to the cytoplasm. The absence of LSR promoted the association of 14-3-3θ with human antigen R, potentially resulting in decreased human antigen R levels in the cytoplasm. Reduced human antigen R levels impaired Chrdl1 mRNA stability, subsequently leading to the activation of BMP-SMAD signaling.
Conclusions
Deletion of LSR in proximal tubule deregulated Chrdl1 to activate BMP-SMAD signaling and ameliorated kidney disease.
Collapse
Affiliation(s)
- Min Jiang
- Shandong Engineering Research Center of Molecular Medicine for Renal Diseases, Yantai, China
- Department of Pharmacology, Binzhou Medical University, Yantai, China
| | - Xiangdong Wang
- Department of Physiology, Binzhou Medical University, Yantai, China
| | - Zhenni Chen
- Department of Physiology, Binzhou Medical University, Yantai, China
| | - Xin Wang
- Department of Physiology, Binzhou Medical University, Yantai, China
| | - Yanan An
- Shandong Engineering Research Center of Molecular Medicine for Renal Diseases, Yantai, China
- Department of Physiology, Binzhou Medical University, Yantai, China
| | - Lixia Ding
- Department of Physiology, Binzhou Medical University, Yantai, China
| | - Mengyuan Xu
- Department of Physiology, Binzhou Medical University, Yantai, China
| | - Baozhen Fan
- Department of Urology, Binzhou Medical University Hospital, Binzhou, China
| | - Peng Jiao
- Department of Urology, Binzhou Medical University Hospital, Binzhou, China
| | - Chao Wang
- Department of Urology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Mingxia Wang
- Shandong Engineering Research Center of Molecular Medicine for Renal Diseases, Yantai, China
- Department of Physiology, Binzhou Medical University, Yantai, China
| | - Hui Sun
- Shandong Engineering Research Center of Molecular Medicine for Renal Diseases, Yantai, China
- Department of Physiology, Binzhou Medical University, Yantai, China
| | - Shengtian Zhao
- Department of Urology, Binzhou Medical University Hospital, Binzhou, China
- Shandong Provincial Engineering Laboratory of Urologic Tissue Reconstruction, Jinan, China
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yongfeng Gong
- Shandong Engineering Research Center of Molecular Medicine for Renal Diseases, Yantai, China
- Department of Physiology, Binzhou Medical University, Yantai, China
| |
Collapse
|
2
|
Bernal YA, Blanco A, Sagredo EA, Oróstica K, Alfaro I, Marcelain K, Armisén R. A Comprehensive Analysis of the Effect of A>I(G) RNA-Editing Sites on Genotoxic Drug Response and Progression in Breast Cancer. Biomedicines 2024; 12:728. [PMID: 38672084 PMCID: PMC11048297 DOI: 10.3390/biomedicines12040728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
Dysregulated A>I(G) RNA editing, which is mainly catalyzed by ADAR1 and is a type of post-transcriptional modification, has been linked to cancer. A low response to therapy in breast cancer (BC) is a significant contributor to mortality. However, it remains unclear if there is an association between A>I(G) RNA-edited sites and sensitivity to genotoxic drugs. To address this issue, we employed a stringent bioinformatics approach to identify differentially RNA-edited sites (DESs) associated with low or high sensitivity (FDR 0.1, log2 fold change 2.5) according to the IC50 of PARP inhibitors, anthracyclines, and alkylating agents using WGS/RNA-seq data in BC cell lines. We then validated these findings in patients with basal subtype BC. These DESs are mainly located in non-coding regions, but a lesser proportion in coding regions showed predicted deleterious consequences. Notably, some of these DESs are previously reported as oncogenic variants, and in genes related to DNA damage repair, drug metabolism, gene regulation, the cell cycle, and immune response. In patients with BC, we uncovered DESs predominantly in immune response genes, and a subset with a significant association (log-rank test p < 0.05) between RNA editing level in LSR, SMPDL3B, HTRA4, and LL22NC03-80A10.6 genes, and progression-free survival. Our findings provide a landscape of RNA-edited sites that may be involved in drug response mechanisms, highlighting the value of A>I(G) RNA editing in clinical outcomes for BC.
Collapse
Affiliation(s)
- Yanara A. Bernal
- Centro de Genética y Genómica, Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7610658, Chile; (Y.A.B.); (A.B.); (I.A.)
| | - Alejandro Blanco
- Centro de Genética y Genómica, Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7610658, Chile; (Y.A.B.); (A.B.); (I.A.)
| | - Eduardo A. Sagredo
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Svante Arrhenius väg 20C, SE-106 91 Stockholm, Sweden;
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- Science for Life Laboratory, SE-171 65 Solna, Sweden
| | - Karen Oróstica
- Instituto de Investigación Interdisciplinaria, Vicerrectoría Académica, Universidad de Talca, Talca 3460000, Chile;
| | - Ivan Alfaro
- Centro de Genética y Genómica, Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7610658, Chile; (Y.A.B.); (A.B.); (I.A.)
| | - Katherine Marcelain
- Departamento de Oncología Básico Clínica, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile;
- Centro de Prevención y Control de Cáncer (CECAN), Universidad de Chile, Santiago 8380453, Chile
| | - Ricardo Armisén
- Centro de Genética y Genómica, Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7610658, Chile; (Y.A.B.); (A.B.); (I.A.)
| |
Collapse
|
3
|
An Y, Wang C, Fan B, Wang Z, Li Y, Kong F, Zhou C, Cao Z, Wang M, Sun H, Zhao S, Gong Y. LSR targets YAP to modulate intestinal Paneth cell differentiation. Cell Rep 2023; 42:113118. [PMID: 37703178 DOI: 10.1016/j.celrep.2023.113118] [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: 11/29/2022] [Revised: 07/26/2023] [Accepted: 08/25/2023] [Indexed: 09/15/2023] Open
Abstract
Lipolysis-stimulated lipoprotein receptor (LSR) is a multi-functional protein that is best known for its roles in assembly of epithelial tricellular tight junctions and hepatic clearance of lipoproteins. Here, we investigated whether LSR contributes to intestinal epithelium homeostasis and pathogenesis of intestinal disease. By using multiple conditional deletion mouse models and ex vivo cultured organoids, we find that LSR elimination in intestinal stem cells results in the disappearance of Paneth cells without affecting the differentiation of other cell lineages. Mechanistic studies reveal that LSR deficiency increases abundance of YAP by modulating its phosphorylation and proteasomal degradation. Using gain- and loss-of-function studies, we show that LSR protects against necrotizing enterocolitis through enhancement of Paneth cell differentiation in small-intestinal epithelium. Thus, this study identifies LSR as an upstream negative regulator of YAP activity, an essential factor for Paneth cell differentiation, and a potential therapeutic target for necrotizing enterocolitis.
Collapse
Affiliation(s)
- Yanan An
- Department of Physiology, Binzhou Medical University, Yantai, Shandong, China; Shandong Engineering Research Center of Molecular Medicine for Renal Diseases, Yantai, Shandong, China
| | - Chao Wang
- Department of Urology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Baozhen Fan
- Department of Urology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong, China
| | - Ziqi Wang
- Department of Physiology, Binzhou Medical University, Yantai, Shandong, China
| | - Ying Li
- Department of Physiology, Binzhou Medical University, Yantai, Shandong, China
| | - Feng Kong
- Shandong Provincial Engineering Laboratory of Urologic Tissue Reconstruction, Jinan, Shandong, China; Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China; Department of Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Chengjun Zhou
- Department of Pathology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zhang Cao
- Department of Pathology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Mingxia Wang
- Department of Physiology, Binzhou Medical University, Yantai, Shandong, China
| | - Hui Sun
- Department of Physiology, Binzhou Medical University, Yantai, Shandong, China
| | - Shengtian Zhao
- Department of Urology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong, China; Shandong Provincial Engineering Laboratory of Urologic Tissue Reconstruction, Jinan, Shandong, China; Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
| | - Yongfeng Gong
- Department of Physiology, Binzhou Medical University, Yantai, Shandong, China; Shandong Engineering Research Center of Molecular Medicine for Renal Diseases, Yantai, Shandong, China.
| |
Collapse
|
4
|
Marino G, Ngai M, Clarke DB, Fleishman R, Deng E, Xie Z, Ahmed N, Ma’ayan A. GeneRanger and TargetRanger: processed gene and protein expression levels across cells and tissues for target discovery. Nucleic Acids Res 2023; 51:W213-W224. [PMID: 37166966 PMCID: PMC10320068 DOI: 10.1093/nar/gkad399] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/23/2023] [Accepted: 05/02/2023] [Indexed: 05/12/2023] Open
Abstract
Several atlasing efforts aim to profile human gene and protein expression across tissues, cell types and cell lines in normal physiology, development and disease. One utility of these resources is to examine the expression of a single gene across all cell types, tissues and cell lines in each atlas. However, there is currently no centralized place that integrates data from several atlases to provide this type of data in a uniform format for visualization, analysis and download, and via an application programming interface. To address this need, GeneRanger is a web server that provides access to processed data about gene and protein expression across normal human cell types, tissues and cell lines from several atlases. At the same time, TargetRanger is a related web server that takes as input RNA-seq data from profiled human cells and tissues, and then compares the uploaded input data to expression levels across the atlases to identify genes that are highly expressed in the input and lowly expressed across normal human cell types and tissues. Identified targets can be filtered by transmembrane or secreted proteins. The results from GeneRanger and TargetRanger are visualized as box and scatter plots, and as interactive tables. GeneRanger and TargetRanger are available from https://generanger.maayanlab.cloud and https://targetranger.maayanlab.cloud, respectively.
Collapse
Affiliation(s)
- Giacomo B Marino
- Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Michael Ngai
- Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Daniel J B Clarke
- Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Reid H Fleishman
- Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Eden Z Deng
- Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Zhuorui Xie
- Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Nasheath Ahmed
- Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Avi Ma’ayan
- Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| |
Collapse
|
5
|
Chandra R, Aryal DK, Douros JD, Shahid R, Davis SJ, Campbell JE, Ilkayeya O, White PJ, Rodriguez R, Newgard CB, Wetsel WC, Liddle RA. Ildr1 gene deletion protects against diet-induced obesity and hyperglycemia. PLoS One 2022; 17:e0270329. [PMID: 35749484 PMCID: PMC9231709 DOI: 10.1371/journal.pone.0270329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 06/09/2022] [Indexed: 11/24/2022] Open
Abstract
Objective Immunoglobulin-like Domain-Containing Receptor 1 (ILDR1) is expressed on nutrient sensing cholecystokinin-positive enteroendocrine cells of the gastrointestinal tract and it has the unique ability to induce fat-mediated CCK secretion. However, the role of ILDR1 in CCK-mediated regulation of satiety is unknown. In this study, we examined the effects of ILDR1 on food intake and metabolic activity using mice with genetically-deleted Ildr1. Methods The expression of ILDR1 in murine tissues and the measurement of adipocyte cell size were evaluated by light and fluorescence confocal microscopy. The effects of Ildr1 deletion on mouse metabolism were quantitated using CLAMS chambers and by targeted metabolomics assays of multiple tissues. Hormone levels were measured by ELISA. The effects of Ildr1 gene deletion on glucose and insulin levels were determined using in vivo oral glucose tolerance, meal tolerance, and insulin tolerance tests, as well as ex vivo islet perifusion. Results ILDR1 is expressed in a wide range of tissues. Analysis of metabolic data revealed that although Ildr1-/- mice consumed more food than wild-type littermates, they gained less weight on a high fat diet and exhibited increased metabolic activity. Adipocytes in Ildr1-/- mice were significantly smaller than in wild-type mice fed either low or high fat diets. ILDR1 was expressed in both alpha and beta cells of pancreatic islets. Based on oral glucose and mixed meal tolerance tests, Ildr1-/- mice were more effective at lowering post-prandial glucose levels, had improved insulin sensitivity, and glucose-regulated insulin secretion was enhanced in mice lacking ILDR1. Conclusion Ildr1 loss significantly modified metabolic activity in these mutant mice. While Ildr1 gene deletion increased high fat food intake, it reduced weight gain and improved glucose tolerance. These findings indicate that ILDR1 modulates metabolic responses to feeding in mice.
Collapse
Affiliation(s)
- Rashmi Chandra
- Department of Medicine, Division of Gastroenterology, Duke University Medical Center, Durham, North Carolina, United States of America
- * E-mail: (RC); (RAL)
| | - Dipendra K. Aryal
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Jonathan D. Douros
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, United States of America
| | - Rafiq Shahid
- Department of Medicine, Division of Gastroenterology, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Supriya J. Davis
- Department of Medicine, Division of Gastroenterology, Duke University Medical Center, Durham, North Carolina, United States of America
- Swarthmore College, Swarthmore, Pennsylvania, United States of America
| | - Jonathan E. Campbell
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, United States of America
| | - Olga Ilkayeya
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, United States of America
- Sarah W. Stedman Nutrition and Metabolism Center, Duke University, Durham, North Carolina, United States of America
| | - Phillip J. White
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, United States of America
- Sarah W. Stedman Nutrition and Metabolism Center, Duke University, Durham, North Carolina, United States of America
| | - Ramona Rodriguez
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina, United States of America
- Mouse Behavioral and Neuroendocrine Analysis Core Facility, Duke University, Durham, North Carolina, United States of America
| | - Christopher B. Newgard
- Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, United States of America
- Sarah W. Stedman Nutrition and Metabolism Center, Duke University, Durham, North Carolina, United States of America
| | - William C. Wetsel
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina, United States of America
- Mouse Behavioral and Neuroendocrine Analysis Core Facility, Duke University, Durham, North Carolina, United States of America
- Department of Cell Biology, Duke University Medical Center, Durham, North Carolina, United States of America
- Department of Neurobiology, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Rodger A. Liddle
- Department of Medicine, Division of Gastroenterology, Duke University Medical Center, Durham, North Carolina, United States of America
- Department of Veterans Affairs Medical Center, Durham, North Carolina, United States of America
- * E-mail: (RC); (RAL)
| |
Collapse
|
6
|
Dong X, Zhang X, Liu P, Tian Y, Li L, Gong P. Lipolysis-Stimulated Lipoprotein Receptor Impairs Hepatocellular Carcinoma and Inhibits the Oncogenic Activity of YAP1 via PPPY Motif. Front Oncol 2022; 12:896412. [PMID: 35586495 PMCID: PMC9108500 DOI: 10.3389/fonc.2022.896412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/08/2022] [Indexed: 12/16/2022] Open
Abstract
Purpose Lipolysis-stimulated lipoprotein receptor (LSR) is a type I single-pass transmembrane protein which is mainly expressed in the liver. In this study, we investigated if and how LSR is involved in the carcinogenesis of hepatocellular carcinoma (HCC). Experimental Design To evaluate if LSR was abnormally expressed in human HCC tissues, and how its expression was associated with the survival probability of patients, we obtained data from Gene Expression Omnibus and The Cancer Genome Atlas Program. To investigate if and how LSR regulates tumor growth, we knocked down and overexpressed LSR in human HCC cell lines. In addition, to evaluate the interaction between LSR and yes-associated protein1 (YAP1), we mutated LSR at PPPY motif, a binding site of YAP1. Results Totally, 454 patients were enrolled in the present study, and high expression of LSR significantly decreased the probability of death. Knockdown of LSR significantly increased the expansion of HCC cells and significantly promoted tumor growth. In addition, downregulation of LSR increased the nuclear accumulation and transcriptional function of YAP1. Conversely, overexpression of LSR impairs this function of YAP1 and phosphorylates YAP1 at serine 127. Of note, mutation of LSR at the PPPY motif could block the interaction between LSR and YAP1, and restore the transcriptional ability of YAP1. Conclusions The present study suggests that LSR binds to YAP1 via the PPPY motif. Thus, LSR increases the phosphorylation of YAP1 and impairs the growth of HCC. This highlights that targeting LSR might be a promising therapeutic strategy for HCC.
Collapse
Affiliation(s)
- Xin Dong
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- Department of General Surgery & Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen, China
- Carson International Cancer Center & Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen University Health Science Center, Shenzhen, China
| | - Xianbin Zhang
- Department of General Surgery & Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen, China
- Carson International Cancer Center & Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Provincial Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
| | - Peng Liu
- Department of General Surgery & Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen, China
- Carson International Cancer Center & Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen University Health Science Center, Shenzhen, China
| | - Yu Tian
- Department of General Surgery & Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen, China
- Carson International Cancer Center & Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen University Health Science Center, Shenzhen, China
| | - Li Li
- Department of General Surgery & Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen, China
- Carson International Cancer Center & Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen University Health Science Center, Shenzhen, China
| | - Peng Gong
- Department of General Surgery & Institute of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen, China
- Carson International Cancer Center & Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen University Health Science Center, Shenzhen, China
| |
Collapse
|
7
|
Wang J, Qin M, Wu Q, Yang H, Wei B, Xie J, Qin Y, Liang Z, Huang J. Effects of Lipolysis-Stimulated Lipoprotein Receptor on Tight Junctions of Pancreatic Ductal Epithelial Cells in Hypertriglyceridemic Acute Pancreatitis. BIOMED RESEARCH INTERNATIONAL 2022; 2022:4234186. [PMID: 35463981 PMCID: PMC9023160 DOI: 10.1155/2022/4234186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 03/17/2022] [Accepted: 04/04/2022] [Indexed: 11/23/2022]
Abstract
Objective We investigated the effects of lipolysis-stimulated lipoprotein receptor (LSR) on the tight junctions (TJs) of pancreatic ductal epithelial cells (PDECs) in hypertriglyceridemic acute pancreatitis (HTGAP). Methods Sprague-Dawley rats were fed standard rat chow or a high-fat diet and injected with sodium taurocholate to obtain normal and HTGAP rats, respectively. Serum triglyceride (TG) levels, pathological changes, TJ proteins in the pancreas, and TJ ultrastructure of PDECs were assessed. LSR overexpression (OE) and knockdown (KD) HPDE6-C7 models were designed and cultured in a high-fat environment. Protein levels were quantified by Western blotting. Cell monolayer permeability was detected using FITC-Dextran. Results Serum TG concentration and pancreatic scores were higher in the HTGAP group than in the normal group. Among the TJ proteins, LSR protein expression was significantly lower in the HTGAP group than in the acute pancreatitis (AP) group. Tricellulin (TRIC) expression in the pancreatic ductal epithelia was higher in the HTGAP group than in the AP group. The HTGAP group had lower TJ protein levels, wider intercellular space, and widespread cellular necrosis with disappearance of cell junction structures. In the cell study, TJ proteins were downregulated and the cellular barrier was impaired by palmitic acid (PA), which was reversed by LSR-OE, whereas LSR-KD downregulated the TJ proteins and aggravated PA-induced cellular barrier impairment. Conclusions Hypertriglyceridemia downregulates the TJ proteins in PDECs, which may impair the pancreatic ductal mucosal barrier function. LSR regulation can change the effects of HTG on cellular barrier function by upregulating the TJ proteins.
Collapse
Affiliation(s)
- Jie Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Mengbin Qin
- Department of Gastroenterology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qing Wu
- Department of Gastroenterology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Huiying Yang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Biwei Wei
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jinlian Xie
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yingying Qin
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhihai Liang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jiean Huang
- Department of Gastroenterology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| |
Collapse
|
8
|
LSR Promotes Cell Proliferation and Invasion in Lung Cancer. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:6651907. [PMID: 33763152 PMCID: PMC7964108 DOI: 10.1155/2021/6651907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/20/2021] [Accepted: 02/26/2021] [Indexed: 11/17/2022]
Abstract
The lipolysis-stimulated lipoprotein receptor (LSR) displays an important regulatory role in cancer. However, the association between LSR and lung cancer is still elusive. Here, the candidate oncogene LSR on Ch.9q was obtained and assessed by bioinformatics analysis of The Cancer Genome Atlas (TCGA) dataset of lung cancer. We conducted clinical pathology and survival analysis based on the lung cancer database. We assessed the biological effects of LSR in lung cancer cells on cell proliferation. Our data indicated that LSR was upregulated in lung cancer cells. Meanwhile, LSR was identified in this study to be a poor prognostic factor, and its high expression exhibited relations with grades, stages, and nodal metastasis status. Using in vitro analysis, our data revealed that LSR could promote lung cancer progression by regulating cell proliferation, migration, and invasion. In our study, our data demonstrated that LSR was a tumor promoter for lung cancer and was a potential biomarker and target for lung cancer prognosis and treatment.
Collapse
|
9
|
Nagarajan SR, Butler LM, Hoy AJ. The diversity and breadth of cancer cell fatty acid metabolism. Cancer Metab 2021; 9:2. [PMID: 33413672 PMCID: PMC7791669 DOI: 10.1186/s40170-020-00237-2] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/16/2020] [Indexed: 12/13/2022] Open
Abstract
Tumor cellular metabolism exhibits distinguishing features that collectively enhance biomass synthesis while maintaining redox balance and cellular homeostasis. These attributes reflect the complex interactions between cell-intrinsic factors such as genomic-transcriptomic regulation and cell-extrinsic influences, including growth factor and nutrient availability. Alongside glucose and amino acid metabolism, fatty acid metabolism supports tumorigenesis and disease progression through a range of processes including membrane biosynthesis, energy storage and production, and generation of signaling intermediates. Here, we highlight the complexity of cellular fatty acid metabolism in cancer, the various inputs and outputs of the intracellular free fatty acid pool, and the numerous ways that these pathways influence disease behavior.
Collapse
Affiliation(s)
- Shilpa R Nagarajan
- Discipline of Physiology, School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK
| | - Lisa M Butler
- Adelaide Medical School and Freemasons Foundation Centre for Men's Health, University of Adelaide, Adelaide, SA, Australia.,South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Andrew J Hoy
- Discipline of Physiology, School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.
| |
Collapse
|
10
|
Leclerc D, Jelinek J, Christensen KE, Issa JPJ, Rozen R. High folic acid intake increases methylation-dependent expression of Lsr and dysregulates hepatic cholesterol homeostasis. J Nutr Biochem 2020; 88:108554. [PMID: 33220403 DOI: 10.1016/j.jnutbio.2020.108554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/17/2020] [Accepted: 11/12/2020] [Indexed: 12/12/2022]
Abstract
Food fortification with folic acid and increased use of vitamin supplements have raised concerns about high folic acid intake. We previously showed that high folic acid intake was associated with hepatic degeneration, decreased levels of methylenetetrahydrofolate reductase (MTHFR), lower methylation potential, and perturbations of lipid metabolism. MTHFR synthesizes the folate derivative for methylation reactions. In this study, we assessed the possibility that high folic acid diets, fed to wild-type and Mthfr+/- mice, could alter DNA methylation and/or deregulate hepatic cholesterol homeostasis. Digital restriction enzyme analysis of methylation in liver revealed DNA hypomethylation of a CpG in the lipolysis-stimulated lipoprotein receptor (Lsr) gene, which is involved in hepatic uptake of cholesterol. Pyrosequencing confirmed this methylation change and identified hypomethylation of several neighboring CpG dinucleotides. Lsr expression was increased and correlated negatively with DNA methylation and plasma cholesterol. A putative binding site for E2F1 was identified. ChIP-qPCR confirmed reduced E2F1 binding when methylation at this site was altered, suggesting that it could be involved in increasing Lsr expression. Expression of genes in cholesterol synthesis, transport or turnover (Abcg5, Abcg8, Abcc2, Cyp46a1, and Hmgcs1) was perturbed by high folic acid intake. We also observed increased hepatic cholesterol and increased expression of genes such as Sirt1, which might be involved in a rescue response to restore cholesterol homeostasis. Our work suggests that high folic acid consumption disturbs cholesterol homeostasis in liver. This finding may have particular relevance for MTHFR-deficient individuals, who represent ~10% of many populations.
Collapse
Affiliation(s)
- Daniel Leclerc
- Departments of Human Genetics and Pediatrics, McGill University, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Jaroslav Jelinek
- Fels Institute for Cancer Research and Molecular Biology, Temple University, Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Karen E Christensen
- Departments of Human Genetics and Pediatrics, McGill University, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Jean-Pierre J Issa
- Fels Institute for Cancer Research and Molecular Biology, Temple University, Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Rima Rozen
- Departments of Human Genetics and Pediatrics, McGill University, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada.
| |
Collapse
|
11
|
Hu JCE, Bojarski C, Branchi F, Fromm M, Krug SM. Leptin Downregulates Angulin-1 in Active Crohn's Disease via STAT3. Int J Mol Sci 2020; 21:ijms21217824. [PMID: 33105684 PMCID: PMC7672602 DOI: 10.3390/ijms21217824] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/15/2022] Open
Abstract
Crohn’s disease (CD) has an altered intestinal barrier function, yet the underlying mechanisms remain to be disclosed. The tricellular tight junction protein tricellulin is involved in the maintenance of the paracellular macromolecule barrier and features an unchanged expression level in CD but a shifted localization. As angulins are known to regulate the localization of tricellulin, we hypothesized the involvement of angulins in CD. Using human biopsies, we found angulin-1 was downregulated in active CD compared with both controls and CD in remission. In T84 and Caco-2 monolayers, leptin, a cytokine secreted by fat tissue and affected in CD, decreased angulin-1 expression. This effect was completely blocked by STAT3 inhibitors, Stattic and WP1066, but only partially by JAK2 inhibitor AG490. The effect of leptin was also seen at a functional level as we observed in Caco-2 cells an increased permeability for FITC-dextran 4 kDa indicating an impaired barrier against macromolecule uptake. In conclusion, we were able to show that in active CD angulin-1 expression is downregulated, which leads to increased macromolecule permeability and is inducible by leptin via STAT3. This suggests that angulin-1 and leptin secretion are potential targets for intervention in CD to restore the impaired intestinal barrier.
Collapse
Affiliation(s)
- Jia-Chen E. Hu
- Institute of Clinical Physiology/Nutritional Medicine, Charité—Universitätsmedizin Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
| | - Christian Bojarski
- Department of Gastroenterology, Rheumatology and Infectious Diseases, Charité—Universitätsmedizin Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
| | - Federica Branchi
- Department of Gastroenterology, Rheumatology and Infectious Diseases, Charité—Universitätsmedizin Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
| | - Michael Fromm
- Institute of Clinical Physiology/Nutritional Medicine, Charité—Universitätsmedizin Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
| | - Susanne M. Krug
- Institute of Clinical Physiology/Nutritional Medicine, Charité—Universitätsmedizin Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
- Correspondence:
| |
Collapse
|
12
|
González-Mariscal L, Miranda J, Gallego-Gutiérrez H, Cano-Cortina M, Amaya E. Relationship between apical junction proteins, gene expression and cancer. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1862:183278. [PMID: 32240623 DOI: 10.1016/j.bbamem.2020.183278] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/09/2020] [Accepted: 03/06/2020] [Indexed: 12/11/2022]
Abstract
The apical junctional complex (AJC) is a cell-cell adhesion system present at the upper portion of the lateral membrane of epithelial cells integrated by the tight junction (TJ) and the adherens junction (AJ). This complex is crucial to initiate and stabilize cell-cell adhesion, to regulate the paracellular transit of ions and molecules and to maintain cell polarity. Moreover, we now consider the AJC as a hub of signal transduction that regulates cell-cell adhesion, gene transcription and cell proliferation and differentiation. The molecular components of the AJC are multiple and diverse and depending on the cellular context some of the proteins in this complex act as tumor suppressors or as promoters of cell transformation, migration and metastasis outgrowth. Here, we describe these new roles played by TJ and AJ proteins and their potential use in cancer diagnostics and as targets for therapeutic intervention.
Collapse
Affiliation(s)
- Lorenza González-Mariscal
- Department of Physiology, Biophysics and Neuroscience, Center of Research and Advanced Studies (Cinvestav), Mexico City, Mexico.
| | - Jael Miranda
- Department of Physiology, Biophysics and Neuroscience, Center of Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Helios Gallego-Gutiérrez
- Department of Physiology, Biophysics and Neuroscience, Center of Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Misael Cano-Cortina
- Department of Physiology, Biophysics and Neuroscience, Center of Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Elida Amaya
- Department of Physiology, Biophysics and Neuroscience, Center of Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| |
Collapse
|
13
|
Tang X, Zhou Y, Liu Y, Zhang W, Liu C, Yan C. Potentiation of cancerous progression by LISCH7 via direct stimulation of TGFB1 transcription in triple-negative breast cancer. J Cell Biochem 2020; 121:4642-4653. [PMID: 32048750 DOI: 10.1002/jcb.29679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 01/30/2020] [Indexed: 12/15/2022]
Abstract
As an aggressive breast cancer (BCa) subtype, triple-negative breast cancer (TNBC) responses poorly to chemotherapy and endocrine therapy, and usually has a worse prognosis. This is largely due to the lack of specific therapeutic targets, laying claim to an imperious demand to clarify the key signaling pathways potentiating TNBC progression. Herein, we report that expression levels of the liver-specific bHLH-Zip transcription factor (LISCH7), a recently identified key player in cancerous progression, preferentially enriched in TNBC in comparison with other BCa subtypes, and this upregulation was observed to be correlated to a poor survival outcome in patients with TNBC. Ablation of LISCH7 in TNBC cells impaired cell proliferation, reduced cell invasiveness, and enhanced sensitivity to the first-line chemotherapeutic drug docetaxel at both in vitro and in vivo levels. Importantly, concurrent induction of TGFB1, the gene encoding transforming growth factor-β1 (TGF-β1), an essential multipluripotent regulator of TNBC, was accompanied with these alterations in cancerous properties. We further showed that LISCH7 could directly bind to the TGFB1 promoter and stimulate TGFB1 transcription in TNBC cells. The recruitment of LISCH7 onto the TGFB1 chromatin and transactivation of TGFB1 were substantially augmented by treatment with the exogenous TGF-β1 in a time- and dose-dependent manner. Collectively, these findings suggest that LISCH7 and TGF-β1 form a reciprocal positive regulatory loop and cooperatively regulate cancerous progression in TNBC cells. Thus, simultaneous inhibition of both LISCH7 and TGF-β1 signaling may represent a more effective approach to counteract advanced TNBC.
Collapse
Affiliation(s)
- Xiaojiang Tang
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yuhui Zhou
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yang Liu
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Chao Liu
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Changyou Yan
- Compositive Sector, Health and Family Planning Commission of Chengcheng County, Weinan, China
| |
Collapse
|
14
|
Park S, Brugiolo M, Akerman M, Das S, Urbanski L, Geier A, Kesarwani AK, Fan M, Leclair N, Lin KT, Hu L, Hua I, George J, Muthuswamy SK, Krainer AR, Anczuków O. Differential Functions of Splicing Factors in Mammary Transformation and Breast Cancer Metastasis. Cell Rep 2019; 29:2672-2688.e7. [PMID: 31775037 PMCID: PMC6936330 DOI: 10.1016/j.celrep.2019.10.110] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/09/2019] [Accepted: 10/28/2019] [Indexed: 12/28/2022] Open
Abstract
Misregulation of alternative splicing is a hallmark of human tumors, yet to what extent and how it contributes to malignancy are only beginning to be unraveled. Here, we define which members of the splicing factor SR and SR-like families contribute to breast cancer and uncover differences and redundancies in their targets and biological functions. We identify splicing factors frequently altered in human breast tumors and assay their oncogenic functions using breast organoid models. We demonstrate that not all splicing factors affect mammary tumorigenesis in MCF-10A cells. Specifically, the upregulation of SRSF4, SRSF6, or TRA2β disrupts acinar morphogenesis and promotes cell proliferation and invasion in MCF-10A cells. By characterizing the targets of these oncogenic splicing factors, we identify shared spliced isoforms associated with well-established cancer hallmarks. Finally, we demonstrate that TRA2β is regulated by the MYC oncogene, plays a role in metastasis maintenance in vivo, and its levels correlate with breast cancer patient survival.
Collapse
Affiliation(s)
- SungHee Park
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA,These authors contributed equally
| | - Mattia Brugiolo
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA,These authors contributed equally
| | - Martin Akerman
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA,Envisagenics Inc., New York, NY, USA,These authors contributed equally
| | - Shipra Das
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA,These authors contributed equally
| | - Laura Urbanski
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA,Graduate Program in Genetics and Development, UConn Health, Farmington, CT, USA
| | | | | | - Martin Fan
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Nathan Leclair
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA,Graduate Program in Genetics and Development, UConn Health, Farmington, CT, USA
| | - Kuan-Ting Lin
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Leo Hu
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Ian Hua
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Joshy George
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA,Institute for Systems Genomics, UConn Health, Farmington, CT, USA
| | - Senthil K. Muthuswamy
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA,Departments of Medicine and Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Adrian R. Krainer
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA,Correspondence: (O.A.), (A.R.K.)
| | - Olga Anczuków
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA; Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA; Institute for Systems Genomics, UConn Health, Farmington, CT, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT, USA.
| |
Collapse
|
15
|
Barrow MA, Martin ME, Coffey A, Andrews PL, Jones GS, Reaves DK, Parker JS, Troester MA, Fleming JM. A functional role for the cancer disparity-linked genes, CRYβB2 and CRYβB2P1, in the promotion of breast cancer. Breast Cancer Res 2019; 21:105. [PMID: 31511085 PMCID: PMC6739962 DOI: 10.1186/s13058-019-1191-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/28/2019] [Indexed: 12/31/2022] Open
Abstract
Background In the USA, the breast cancer mortality rate is 41% higher for African-American women than non-Hispanic White women. While numerous gene expression studies have classified biological features that vary by race and may contribute to poorer outcomes, few studies have experimentally tested these associations. CRYβB2 gene expression has drawn particular interest because of its association with overall survival and African-American ethnicity in multiple cancers. Several reports indicate that overexpression of the CRYβB2 pseudogene, CRYβB2P1, and not CRYβB2 is linked with race and poor outcome. It remains unclear whether either or both genes are linked to breast cancer outcomes. This study investigates CRYβB2 and CRYβB2P1 expression in human breast cancers and breast cancer cell line models, with the goal of elucidating the mechanistic contribution of CRYβB2 and CRYβB2P1 to racial disparities. Methods Custom scripts for CRYβB2 or CRYβB2P1 were generated and used to identify reads that uniquely aligned to either gene. Gene expression according to race and tumor subtype were assessed using all available TCGA breast cancer RNA sequencing alignment samples (n = 1221). In addition, triple-negative breast cancer models engineered to have each gene overexpressed or knocked out were developed and evaluated by in vitro, biochemical, and in vivo assays to identify biological functions. Results We provide evidence that CRYβB2P1 is expressed at higher levels in breast tumors compared to CRYβB2, but only CRYβB2P1 is significantly increased in African-American tumors relative to White American tumors. We show that independent of CRYβB2, CRYβB2P1 enhances tumorigenesis in vivo via promoting cell proliferation. Our data also reveal that CRYβB2P1 may function as a non-coding RNA to regulate CRYβB2 expression. A key observation is that the combined overexpression of both genes was found to suppress cell growth. CRYβB2 overexpression in triple-negative breast cancers increases invasive cellular behaviors, tumor growth, IL6 production, immune cell chemoattraction, and the expression of metastasis-associated genes. These data underscore that both CRYβB2 and CRYβB2P1 promote tumor growth, but their mechanisms for tumor promotion are likely distinct. Conclusions Our findings provide novel data emphasizing the need to distinguish and study the biological effects of both CRYβB2 and CRYβB2P1 as both genes independently promote tumor progression. Our data demonstrate novel molecular mechanisms of two understudied, disparity-linked molecules. Electronic supplementary material The online version of this article (10.1186/s13058-019-1191-3) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Maya A Barrow
- Department of Biological and Biomedical Sciences, North Carolina Central University, 1801 Fayetteville Street, Mary Townes Science Complex, Durham, NC, 27707, USA
| | - Megan E Martin
- Department of Biological and Biomedical Sciences, North Carolina Central University, 1801 Fayetteville Street, Mary Townes Science Complex, Durham, NC, 27707, USA
| | - Alisha Coffey
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Portia L Andrews
- Department of Biological and Biomedical Sciences, North Carolina Central University, 1801 Fayetteville Street, Mary Townes Science Complex, Durham, NC, 27707, USA
| | - Gieira S Jones
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Denise K Reaves
- Department of Biological and Biomedical Sciences, North Carolina Central University, 1801 Fayetteville Street, Mary Townes Science Complex, Durham, NC, 27707, USA
| | - Joel S Parker
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Melissa A Troester
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jodie M Fleming
- Department of Biological and Biomedical Sciences, North Carolina Central University, 1801 Fayetteville Street, Mary Townes Science Complex, Durham, NC, 27707, USA. .,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| |
Collapse
|
16
|
Intarajak T, Udomchaiprasertkul W, Bunyoo C, Yimnoon J, Soonklang K, Wiriyaukaradecha K, Lamlertthon W, Sricharunrat T, Chaiwiriyawong W, Siriphongpreeda B, Sutheeworapong S, Kusonmano K, Kittichotirat W, Thammarongtham C, Jenjaroenpun P, Wongsurawat T, Nookaew I, Auewarakul C, Cheevadhanarak S. Genetic Aberration Analysis in Thai Colorectal Adenoma and Early-Stage Adenocarcinoma Patients by Whole-Exome Sequencing. Cancers (Basel) 2019; 11:E977. [PMID: 31336886 PMCID: PMC6679221 DOI: 10.3390/cancers11070977] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/31/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023] Open
Abstract
Colorectal adenomas are precursor lesions of colorectal adenocarcinoma. The transition from adenoma to carcinoma in patients with colorectal cancer (CRC) has been associated with an accumulation of genetic aberrations. However, criteria that can screen adenoma progression to adenocarcinoma are still lacking. This present study is the first attempt to identify genetic aberrations, such as the somatic mutations, copy number variations (CNVs), and high-frequency mutated genes, found in Thai patients. In this study, we identified the genomic abnormality of two sample groups. In the first group, five cases matched normal-colorectal adenoma-colorectal adenocarcinoma. In the second group, six cases matched normal-colorectal adenomas. For both groups, whole-exome sequencing was performed. We compared the genetic aberration of the two sample groups. In both normal tissues compared with colorectal adenoma and colorectal adenocarcinoma analyses, somatic mutations were observed in the tumor suppressor gene APC (Adenomatous polyposis coli) in eight out of ten patients. In the group of normal tissue comparison with colorectal adenoma tissue, somatic mutations were also detected in Catenin Beta 1 (CTNNB1), Family With Sequence Similarity 123B (FAM123B), F-Box And WD Repeat Domain Containing 7 (FBXW7), Sex-Determining Region Y-Box 9 (SOX9), Low-Density Lipoprotein Receptor-Related Protein 5 (LRP5), Frizzled Class Receptor 10 (FZD10), and AT-Rich Interaction Domain 1A (ARID1A) genes, which are involved in the Wingless-related integration site (Wnt) signaling pathway. In the normal tissue comparison with colorectal adenocarcinoma tissue, Kirsten retrovirus-associated DNA sequences (KRAS), Tumor Protein 53 (TP53), and Ataxia-Telangiectasia Mutated (ATM) genes are found in the receptor tyrosine kinase-RAS (RTK-RAS) signaling pathway and p53 signaling pathway, respectively. These results suggest that APC and TP53 may act as a potential screening marker for colorectal adenoma and early-stage CRC. This preliminary study may help identify patients with adenoma and early-stage CRC and may aid in establishing prevention and surveillance strategies to reduce the incidence of CRC.
Collapse
Affiliation(s)
- Thoranin Intarajak
- Bioinformatics and Systems Biology Program, School of Bioresources and Technology and School of Information Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
- Bioinformatics Unit for Genomic Analysis, Division of Research and International Relations, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
- Systems Biology and Bioinformatics Research Group, Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Wandee Udomchaiprasertkul
- Molecular Biology and Genomic Laboratory, Division of Research and International Relations, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Chakrit Bunyoo
- Bioinformatics Unit for Genomic Analysis, Division of Research and International Relations, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Jutamas Yimnoon
- Cytogenetics Unit, Central Research Laboratory, Division of Research and International Relations, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Kamonwan Soonklang
- Data Management Unit, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Kriangpol Wiriyaukaradecha
- Molecular Biology and Genomic Laboratory, Division of Research and International Relations, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Wisut Lamlertthon
- Faculty of Medicine and Public Health, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Thaniya Sricharunrat
- Pathology Laboratory Unit, Chulabhorn Hospital, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Worawit Chaiwiriyawong
- Department of Medical Oncology, Chulabhorn Hospital, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Bunchorn Siriphongpreeda
- Faculty of Medicine and Public Health, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Sawannee Sutheeworapong
- Bioinformatics and Systems Biology Program, School of Bioresources and Technology and School of Information Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
- Systems Biology and Bioinformatics Research Group, Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Kanthida Kusonmano
- Bioinformatics and Systems Biology Program, School of Bioresources and Technology and School of Information Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
- Systems Biology and Bioinformatics Research Group, Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Weerayuth Kittichotirat
- Bioinformatics and Systems Biology Program, School of Bioresources and Technology and School of Information Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
- Systems Biology and Bioinformatics Research Group, Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Chinae Thammarongtham
- Biochemical Engineering and Systems Biology research group, National Center for Genetic Engineering and Biotechnology (BIOTEC) at King Mongkut's University of Technology Thonburi, Bangkhuntien, Bangkok 10150, Thailand
| | - Piroon Jenjaroenpun
- Department of Biomedical Informatics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Thidathip Wongsurawat
- Department of Biomedical Informatics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Intawat Nookaew
- Department of Biomedical Informatics, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
- Department of Physiology and Biophysics, College of Medicine, The University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Chirayu Auewarakul
- Faculty of Medicine and Public Health, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok 10210, Thailand.
| | - Supapon Cheevadhanarak
- Systems Biology and Bioinformatics Research Group, Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand.
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand.
| |
Collapse
|
17
|
Nagahama M, Takehara M, Kobayashi K. Interaction of Clostridium perfringens Iota Toxin and Lipolysis-Stimulated Lipoprotein Receptor (LSR). Toxins (Basel) 2018; 10:toxins10100405. [PMID: 30297616 PMCID: PMC6215307 DOI: 10.3390/toxins10100405] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 09/29/2018] [Accepted: 10/04/2018] [Indexed: 01/05/2023] Open
Abstract
Iota toxin produced by Clostridium perfringens is a binary, actin ADP-ribosylating toxin that is organized into the enzymatically active component Ia and the binding component Ib. Lipolysis-stimulated lipoprotein receptor (LSR) has been identified as a cellular receptor of Ib. Here, we investigated the functional interaction between Ib and LSR, where siRNA for LSR blocked the toxin-mediated cytotoxicity and the binding of Ib. The addition of Ib to LSR-green fluorescence protein (GFP)-transfected cells at 4 °C resulted in colocalization with LSR and Ib on the cell surface. Upon transfer of the cells from 4 °C to 37 °C, LSR and Ib were internalized and observed in cytoplasmic vesicles. When the cells were incubated with Ib at 37 °C and fractionated using the Triton-insoluble membrane, Ib oligomer was localized in insoluble factions that fulfilled the criteria of lipid rafts, and LSR was clustered in lipid rafts. To examine the interaction between N-terminal extracellular region of LSR and Ib, we constructed a series of LSR N-terminal deletions. Ten amino acids residues can be deleted from this end without any reduction of Ib binding. However, deletion of 15 N-terminal residues drastically reduces its ability to bind Ib. These results demonstrate that Ib binds to the LSR N-terminal 10 to 15 residues and endocytoses into trafficking endosomes together with LSR.
Collapse
Affiliation(s)
- Masahiro Nagahama
- Department of Microbiology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
| | - Masaya Takehara
- Department of Microbiology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
| | - Keiko Kobayashi
- Department of Microbiology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
| |
Collapse
|
18
|
Cyr DG, Dufresne J, Gregory M. Cellular junctions in the epididymis, a critical parameter for understanding male reproductive toxicology. Reprod Toxicol 2018; 81:207-219. [PMID: 30130578 DOI: 10.1016/j.reprotox.2018.08.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/14/2018] [Accepted: 08/16/2018] [Indexed: 12/28/2022]
Abstract
Epididymal sperm maturation is a critical aspect of male reproduction in which sperm acquire motility and the ability to fertilize an ovum. Sperm maturation is dependent on the creation of a specific environment that changes along the epididymis and which enables the maturation process. The blood-epididymis barrier creates a unique luminal micro-environment, different from blood, by limiting paracellular transport and forcing receptor-mediated transport of macromolecules across the epididymal epithelium. Direct cellular communication between cells allows coordinated function of the epithelium. A limited number of studies have directly examined the effects of toxicants on junctional proteins and barrier function in the epididymis. Effects on the integrity of the blood-epididymis barrier have resulted in decreased fertility and, in some cases, the development of sperm granulomas. Studies have shown that in addition to tight junctions, proteins implicated in the maintenance of adherens junctions and gap junctions alter epididymal functions. This review will provide an overview of the types and roles of cellular junctions in the epididymis, and how these are targeted by different toxicants.
Collapse
Affiliation(s)
- Daniel G Cyr
- Laboratory for Reproductive Toxicology, INRS-Institut Armand-Frappier, Université du Québec, 531 boul. des Prairies, Laval, Québec, H7V 1B7, Canada.
| | - Julie Dufresne
- Laboratory for Reproductive Toxicology, INRS-Institut Armand-Frappier, Université du Québec, 531 boul. des Prairies, Laval, Québec, H7V 1B7, Canada
| | - Mary Gregory
- Laboratory for Reproductive Toxicology, INRS-Institut Armand-Frappier, Université du Québec, 531 boul. des Prairies, Laval, Québec, H7V 1B7, Canada
| |
Collapse
|
19
|
Hiramatsu K, Serada S, Enomoto T, Takahashi Y, Nakagawa S, Nojima S, Morimoto A, Matsuzaki S, Yokoyama T, Takahashi T, Fujimoto M, Takemori H, Ueda Y, Yoshino K, Morii E, Kimura T, Naka T. LSR Antibody Therapy Inhibits Ovarian Epithelial Tumor Growth by Inhibiting Lipid Uptake. Cancer Res 2017; 78:516-527. [DOI: 10.1158/0008-5472.can-17-0910] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 09/29/2017] [Accepted: 11/15/2017] [Indexed: 11/16/2022]
|
20
|
Higashi T, Miller AL. Tricellular junctions: how to build junctions at the TRICkiest points of epithelial cells. Mol Biol Cell 2017; 28:2023-2034. [PMID: 28705832 PMCID: PMC5509417 DOI: 10.1091/mbc.e16-10-0697] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/05/2017] [Accepted: 05/10/2017] [Indexed: 01/07/2023] Open
Abstract
Tricellular contacts are the places where three cells meet. In vertebrate epithelial cells, specialized structures called tricellular tight junctions (tTJs) and tricellular adherens junctions (tAJs) have been identified. tTJs are important for the maintenance of barrier function, and disruption of tTJ proteins contributes to familial deafness. tAJs have recently been attracting the attention of mechanobiologists because these sites are hot spots of epithelial tension. Although the molecular components, regulation, and function of tTJs and tAJs, as well as of invertebrate tricellular junctions, are beginning to be characterized, many questions remain. Here we broadly cover what is known about tricellular junctions, propose a new model for tension transmission at tAJs, and discuss key open questions.
Collapse
Affiliation(s)
- Tomohito Higashi
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109
| | - Ann L Miller
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109
| |
Collapse
|
21
|
Xu JF, Zhao ZG, Ye LL, Zhuge W, Han Z, Zhang TM, Ye SS, Chen WJ, Zhu S, Shi L, Zhang J, Guo AZ, Xue XY, Shen X. Prognostic significance of Daxx NCR (Nuclear/Cytoplasmic Ratio) in gastric cancer. Cancer Med 2017; 6:2063-2075. [PMID: 28812328 PMCID: PMC5603835 DOI: 10.1002/cam4.1144] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/17/2017] [Accepted: 06/21/2017] [Indexed: 12/19/2022] Open
Abstract
In addition to regulating apoptosis via its interaction with the death domain of Fas receptor, death domain associated protein 6 (Daxx) is also known to be involved in transcriptional regulation, suggesting that the function of Daxx depends on its subcellular localization. In this study, we aimed to explore Daxx subcellular localization in gastric cancer (GC) cells and correlate the findings with clinical data in GC patients. Seventy pairs of tissue samples (GC and adjacent normal tissue) were analyzed immunohistochemically for Daxx expression and localization (nuclear and cytoplasmic). The Daxx Nuclear/Cytoplasmic ratio (Daxx NCR) values in tissue microarray data with 522 tumor samples were further analyzed. The defined Prior cohort (n = 277, treatment between 2006 and 2009) and Recent cohort (n = 245, treatment between 2010 and 2011) were then used to examine the relationship between Daxx NCR and clinical data. The Daxx NCR was found to be clinically informative and significantly higher in GC tissue. Using Daxx NCR (risk ratio = 2.0), both the Prior and Recent cohorts were divided into high‐ and low‐risk groups. Relative to the low‐risk group, the high‐risk patients had a shorter disease free survival (DFS) and overall survival (OS) in both cohorts. Importantly, postoperative chemotherapy was found having differential effect on high‐ and low‐risk patients. Such chemotherapy brought no survival benefit, (and could potentially be detrimental,) to high‐risk patients after surgery. Daxx NCR could be used as a prognosis factor in GC patients, and may help select the appropriate population to benefit from chemotherapy after surgery.
Collapse
Affiliation(s)
- Jian-Feng Xu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhi-Guang Zhao
- Department of Pathology, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Le-le Ye
- Basic Medical College of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Weishan Zhuge
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zheng Han
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Te-Ming Zhang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Si-Si Ye
- Basic Medical College of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wen-Jing Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shanli Zhu
- Basic Medical College of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Li Shi
- Department of Gastroenterology, Jinhua First People 's Hospital, Jinhua, Zhejiang, China
| | - Jun Zhang
- Division of Hematology, Oncology and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, University of Iowa Carver College of Medicine, Iowa City, Iowa
| | - Ai-Zhen Guo
- Department of Internal Medicine, Yangpu Hosptial, Tongji University School of Medicine, Shanghai, China
| | - Xiang-Yang Xue
- Basic Medical College of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xian Shen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Gastrointestinal Surgery, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| |
Collapse
|