1
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Li X, Xie W, Pan Q, Zhang X, Zhang L, Zhao N, Xie Q, Ding J, Chai J. Semaphorin 7A interacts with nuclear factor NF-kappa-B p105 via integrin β1 and mediates inflammation. Cell Commun Signal 2023; 21:24. [PMID: 36717921 PMCID: PMC9885601 DOI: 10.1186/s12964-022-01024-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/22/2022] [Indexed: 02/01/2023] Open
Abstract
Semaphorin7a (SEMA7A), a membrane-anchored member of the semaphorin protein family, could be involved in a diverse range of immune responses via its receptor integrin β1. Recently, we reported that the SEMA7AR148W mutation (a gain-of-function mutation, Sema7aR145W in mice) is a risk factor for progressive familial intrahepatic cholestasis and nonalcoholic fatty liver disease via upregulated membrane localization. In this study, we demonstrated that integrin β1 is a membrane receptor for nuclear factor NF-kappa-B p105 (NF-κB p105) and a critical mediator of inflammation. Integrin β1 could interact with the C-terminal domain of NF-κB p105 to promote p50 generation and stimulate the NF-κB p50/p65 signalling pathway, upregulate TNF-α and IL-1β levels, and subsequently render hepatocytes more susceptible to inflammation. The induction of integrin β1 depends on elevated Sema7a membrane localization. Moreover, we revealed elevated levels of Sema7aWT (SEMA7AWT) in hepatocellular carcinoma (HCC) patients and an HCC mouse model. In line with our findings, the NF-κB p50/p65 pathway could also be activated by high Sema7a expression and repressed by integrin β1 silencing. In conclusion, our findings suggest that the Sema7aR145W (SEMA7AR148W) mutation and high Sema7aWT (SEMA7AWT) expression both activate the NF-κB p50/p65 pathway via integrin β1 and play a crucial role in inflammatory responses. Video Abstract.
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Affiliation(s)
- Xuan Li
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
| | - Wanlu Xie
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
| | - Qiong Pan
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
| | - Xiaoxun Zhang
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
| | - Liangjun Zhang
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
| | - Nan Zhao
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
| | - Qiaoling Xie
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
| | - Jingjing Ding
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
| | - Jin Chai
- grid.410570.70000 0004 1760 6682Department of Gastroenterology, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Institute of Digestive Diseases of PLA, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Cholestatic Liver Diseases Center, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Center for Metabolic Associated Fatty Liver Disease, The First Affiliated Hospital (Southwest Hospital) to Third Military Medical University (Army Medical University), Chongqing, 400038 China
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2
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Rodriguez UA, Dahiya S, Raymond ML, Gao C, Martins-Cargill CP, Piganelli JD, Gittes GK, Hu J, Esni F. Focal adhesion kinase-mediated signaling controls the onset of pancreatic cell differentiation. Development 2022; 149:dev200761. [PMID: 36017799 PMCID: PMC9482336 DOI: 10.1242/dev.200761] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 08/02/2022] [Indexed: 11/20/2022]
Abstract
Signals from the endothelium play a pivotal role in pancreatic lineage commitment. As such, the fate of the epithelial cells relies heavily on the spatiotemporal recruitment of the endothelial cells to the embryonic pancreas. Although it is known that VEGFA secreted by the epithelium recruits the endothelial cells to the specific domains within the developing pancreas, the mechanism that controls the timing of such recruitment is poorly understood. Here, we have assessed the role of focal adhesion kinase (FAK) in mouse pancreatic development based on our observation that the presence of the enzymatically active form of FAK (pFAK) in the epithelial cells is inversely correlated with vessel recruitment. To study the role of FAK in the pancreas, we conditionally deleted the gene encoding focal adhesion kinase in the developing mouse pancreas. We found that homozygous deletion of Fak (Ptk2) during embryogenesis resulted in ectopic epithelial expression of VEGFA, abnormal endothelial recruitment and a delay in endocrine and acinar cell differentiation. The heterozygous mutants were born with no pancreatic phenotype but displayed gradual acinar atrophy due to cell polarity defects in exocrine cells. Together, our findings imply a role for FAK in controlling the timing of pancreatic lineage commitment and/or differentiation in the embryonic pancreas by preventing endothelial recruitment to the embryonic pancreatic epithelium.
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Affiliation(s)
- Uylissa A. Rodriguez
- Department of Surgery, Division of Pediatric General and Thoracic Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA 15244, USA
| | - Shakti Dahiya
- Department of Surgery, Division of Pediatric General and Thoracic Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA 15244, USA
| | - Michelle L. Raymond
- Department of Surgery, Division of Pediatric General and Thoracic Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA 15244, USA
| | - Chenxi Gao
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh, Pittsburgh, PA 15244, USA
| | - Christina P. Martins-Cargill
- Department of Surgery, Division of Pediatric General and Thoracic Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA 15244, USA
| | - Jon D. Piganelli
- Department of Surgery, Division of Pediatric General and Thoracic Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA 15244, USA
| | - George K. Gittes
- Department of Surgery, Division of Pediatric General and Thoracic Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA 15244, USA
| | - Jing Hu
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh, Pittsburgh, PA 15244, USA
| | - Farzad Esni
- Department of Surgery, Division of Pediatric General and Thoracic Surgery, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA 15244, USA
- Department of Developmental Biology, University of Pittsburgh, Pittsburgh, PA 15244, USA
- UPMC Hillman Cancer Center, Pittsburgh, PA 15123, USA
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3
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Inman KS, Liu Y, Scotti Buzhardt ML, Leitges M, Krishna M, Crawford HC, Fields AP, Murray NR. Prkci Regulates Autophagy and Pancreatic Tumorigenesis in Mice. Cancers (Basel) 2022; 14:796. [PMID: 35159064 PMCID: PMC8834021 DOI: 10.3390/cancers14030796] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/26/2022] [Accepted: 02/01/2022] [Indexed: 12/14/2022] Open
Abstract
Protein kinase C iota (PKCι) functions as a bonafide human oncogene in lung and ovarian cancer and is required for KrasG12D-mediated lung cancer initiation and progression. PKCι expression is required for pancreatic cancer cell growth and maintenance of the transformed phenotype; however, nothing is known about the role of PKCι in pancreas development or pancreatic tumorigenesis. In this study, we investigated the effect of pancreas-specific ablation of PKCι expression on pancreatic cellular homeostasis, susceptibility to pancreatitis, and KrasG12D-mediated pancreatic cancer development. Knockout of pancreatic Prkci significantly increased pancreatic immune cell infiltration, acinar cell DNA damage, and apoptosis, but reduced sensitivity to caerulein-induced pancreatitis. Prkci-ablated pancreatic acinar cells exhibited P62 aggregation and a loss of autophagic vesicles. Loss of pancreatic Prkci promoted KrasG12D-mediated pancreatic intraepithelial neoplasia formation but blocked progression to adenocarcinoma, consistent with disruption of autophagy. Our results reveal a novel promotive role for PKCι in pancreatic epithelial cell autophagy and pancreatic cancer progression.
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Affiliation(s)
- Kristin S. Inman
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (K.S.I.); (Y.L.); (M.L.S.B.); (H.C.C.); (A.P.F.)
- Environmental Health Perspectives/National Institute of Environmental Health Sciences, Durham, NC 27709, USA
| | - Yi Liu
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (K.S.I.); (Y.L.); (M.L.S.B.); (H.C.C.); (A.P.F.)
| | - Michele L. Scotti Buzhardt
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (K.S.I.); (Y.L.); (M.L.S.B.); (H.C.C.); (A.P.F.)
- Neogenomics Laboratories, Clinical Division, Charlotte, NC 28104, USA
| | - Michael Leitges
- Department of BioMedical Sciences, Faculty of Medicine, Memorial University, St. John’s, NL A1M 2V7, Canada;
| | - Murli Krishna
- Department of Pathology/Lab Medicine, Mayo Clinic, Jacksonville, FL 32224, USA;
| | - Howard C. Crawford
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (K.S.I.); (Y.L.); (M.L.S.B.); (H.C.C.); (A.P.F.)
- Department of Surgery, Henry Ford Pancreatic Cancer Center, Detroit, MI 48202, USA
| | - Alan P. Fields
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (K.S.I.); (Y.L.); (M.L.S.B.); (H.C.C.); (A.P.F.)
| | - Nicole R. Murray
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL 32224, USA; (K.S.I.); (Y.L.); (M.L.S.B.); (H.C.C.); (A.P.F.)
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4
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Yazlovitskaya EM, Plosa E, Bock F, Viquez OM, Mernaugh G, Gewin LS, De Arcangelis A, Georges-Labouesse E, Sonnenberg A, Blackwell TS, Pozzi A, Zent R. The laminin-binding integrins regulate nuclear factor κB-dependent epithelial cell polarity and inflammation. J Cell Sci 2021; 134:273835. [PMID: 34841431 PMCID: PMC8729780 DOI: 10.1242/jcs.259161] [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: 07/18/2021] [Accepted: 11/18/2021] [Indexed: 12/24/2022] Open
Abstract
The main laminin-binding integrins α3β1, α6β1 and α6β4 are co-expressed in the developing kidney collecting duct system. We previously showed that deleting the integrin α3 or α6 subunit in the ureteric bud, which gives rise to the kidney collecting system, caused either a mild or no branching morphogenesis phenotype, respectively. To determine whether these two integrin subunits cooperate in kidney collecting duct development, we deleted α3 and α6 in the developing ureteric bud. The collecting system of the double knockout phenocopied the α3 integrin conditional knockout. However, with age, the mice developed severe inflammation and fibrosis around the collecting ducts, resulting in kidney failure. Integrin α3α6-null collecting duct epithelial cells showed increased secretion of pro-inflammatory cytokines and displayed mesenchymal characteristics, causing loss of barrier function. These features resulted from increased nuclear factor kappa-B (NF-κB) activity, which regulated the Snail and Slug (also known as Snai1 and Snai2, respectively) transcription factors and their downstream targets. These data suggest that laminin-binding integrins play a key role in the maintenance of kidney tubule epithelial cell polarity and decrease pro-inflammatory cytokine secretion by regulating NF-κB-dependent signaling.
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Affiliation(s)
- Eugenia M. Yazlovitskaya
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Erin Plosa
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Fabian Bock
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Olga M. Viquez
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Glenda Mernaugh
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Leslie S. Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA,Veterans Affairs Hospital, Nashville, TN 37232, USA,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Adele De Arcangelis
- Department of Development and Stem Cells, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR7104, INSERM U964/ULP, F-67404 Illkirch, France
| | - Elisabeth Georges-Labouesse
- Department of Development and Stem Cells, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR7104, INSERM U964/ULP, F-67404 Illkirch, France,Author for correspondence ()
| | - Arnoud Sonnenberg
- Division of Cell Biology, Netherlands Cancer Institute, 1066 CX Amsterdam, Netherlands
| | - Timothy S. Blackwell
- Veterans Affairs Hospital, Nashville, TN 37232, USA,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA,Division of Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Ambra Pozzi
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA,Veterans Affairs Hospital, Nashville, TN 37232, USA
| | - Roy Zent
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA,Veterans Affairs Hospital, Nashville, TN 37232, USA,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
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5
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Cyge B, Voronina V, Hoque M, Kim EN, Hall J, Bailey-Lundberg JM, Pazour GJ, Crawford HC, Moon RT, Li FQ, Takemaru KI. Loss of the ciliary protein Chibby1 in mice leads to exocrine pancreatic degeneration and pancreatitis. Sci Rep 2021; 11:17220. [PMID: 34446743 PMCID: PMC8390639 DOI: 10.1038/s41598-021-96597-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 08/12/2021] [Indexed: 12/12/2022] Open
Abstract
Primary cilia protrude from the apical surface of many cell types and act as a sensory organelle that regulates diverse biological processes ranging from chemo- and mechanosensation to signaling. Ciliary dysfunction is associated with a wide array of genetic disorders, known as ciliopathies. Polycystic lesions are commonly found in the kidney, liver, and pancreas of ciliopathy patients and mouse models. However, the pathogenesis of the pancreatic phenotype remains poorly understood. Chibby1 (Cby1), a small conserved coiled-coil protein, localizes to the ciliary base and plays a crucial role in ciliogenesis. Here, we report that Cby1-knockout (KO) mice develop severe exocrine pancreatic atrophy with dilated ducts during early postnatal development. A significant reduction in the number and length of cilia was observed in Cby1-KO pancreta. In the adult Cby1-KO pancreas, inflammatory cell infiltration and fibrosis were noticeable. Intriguingly, Cby1-KO acinar cells showed an accumulation of zymogen granules (ZGs) with altered polarity. Moreover, isolated acini from Cby1-KO pancreas exhibited defective ZG secretion in vitro. Collectively, our results suggest that, upon loss of Cby1, concomitant with ciliary defects, acinar cells accumulate ZGs due to defective exocytosis, leading to cell death and progressive exocrine pancreatic degeneration after birth.
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Affiliation(s)
- Benjamin Cyge
- Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Vera Voronina
- Department of Pharmacology, Institute for Stem Cell and Regenerative Medicine, University of Washington School of Medicine and Howard Hughes Medical Institute, Seattle, WA, 98195, USA
| | - Mohammed Hoque
- Graduate Program in Molecular and Cellular Biology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Eunice N Kim
- Graduate Program in Molecular and Cellular Biology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Jason Hall
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Jennifer M Bailey-Lundberg
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Gregory J Pazour
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Howard C Crawford
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, 32224, USA
- Henry Ford Health System, Detroit, MI, 48202, USA
| | - Randall T Moon
- Department of Pharmacology, Institute for Stem Cell and Regenerative Medicine, University of Washington School of Medicine and Howard Hughes Medical Institute, Seattle, WA, 98195, USA
| | - Feng-Qian Li
- Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University, Stony Brook, NY, 11794, USA
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, 11974, USA
| | - Ken-Ichi Takemaru
- Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University, Stony Brook, NY, 11794, USA.
- Graduate Program in Molecular and Cellular Biology, Stony Brook University, Stony Brook, NY, 11794, USA.
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, 11974, USA.
- Department of Pharmacological Sciences, Stony Brook University, BST 7-182, 101 Nicolls Rd., Stony Brook, NY, 11794-8651, USA.
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6
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Abstract
The pancreas of adult mammals displays a branched structure which transports digestive enzymes produced in the distal acini through a tree-like network of ducts into the duodenum. In contrast to several other branched organs, its branching patterns are not stereotypic. Moreover, the branches do not grow from dichotomic splitting of an initial stem but rather from the formation of microlumen in a mass of cells. These lumen progressively assemble into a hyperconnected network that refines into a tree by the time of birth. We review the cell remodeling events and the molecular mechanisms governing pancreas branching, as well as the role of the surrounding tissues in this process. Furthermore, we draw parallels with other branched organs such as the salivary and mammary gland.
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Affiliation(s)
- Lydie Flasse
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany.
| | - Coline Schewin
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Anne Grapin-Botton
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany; Cluster of Excellence Physics of Life, Technische Universität Dresden, Dresden, Germany; The Novo Nordisk Foundation Center for Stem Cell Biology, Copenhagen, Denmark.
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7
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Shiokawa M, Kodama Y, Sekiguchi K, Kuwada T, Tomono T, Kuriyama K, Yamazaki H, Morita T, Marui S, Sogabe Y, Kakiuchi N, Matsumori T, Mima A, Nishikawa Y, Ueda T, Tsuda M, Yamauchi Y, Sakuma Y, Maruno T, Uza N, Tsuruyama T, Mimori T, Seno H, Chiba T. Laminin 511 is a target antigen in autoimmune pancreatitis. Sci Transl Med 2019; 10:10/453/eaaq0997. [PMID: 30089633 DOI: 10.1126/scitranslmed.aaq0997] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 02/28/2018] [Accepted: 07/09/2018] [Indexed: 12/15/2022]
Abstract
Autoimmune pancreatitis (AIP), a major manifestation of immunoglobulin G4-related disease (IgG4-RD), is an immune-mediated disorder, but the target autoantigens are still unknown. We previously reported that IgG in patients with AIP induces pancreatic injuries in mice by binding the extracellular matrix (ECM). In the current study, we identified an autoantibody against laminin 511-E8, a truncated laminin 511, one of the ECM proteins, in patients with AIP. Anti-laminin 511-E8 IgG was present in 26 of 51 AIP patients (51.0%), but only in 2 of 122 controls (1.6%), by enzyme-linked immunosorbent assay. Because truncated forms of other laminin family members in other organs have been reported, we confirmed that truncated forms of laminin 511 also exist in human and mouse pancreas. Histologic studies with patient pancreatic tissues showed colocalization of patient IgG and laminin 511. Immunization of mice with human laminin 511-E8 induced antibodies and pancreatic injury, fulfilling the pathologic criteria for human AIP. Four of 25 AIP patients without laminin 511-E8 antibodies had antibodies against integrin α6β1, a laminin 511 ligand. AIP patients with laminin 511-E8 antibodies exhibited distinctive clinical features, as the frequencies of malignancies or allergic diseases were significantly lower in patients with laminin 511-E8 antibodies than in those without. The discovery of these autoantibodies should aid in the understanding of AIP pathophysiology and possibly improve the diagnosis of AIP.
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Affiliation(s)
- Masahiro Shiokawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Yuzo Kodama
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan.
| | - Kiyotoshi Sekiguchi
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, Suita 565-0871, Japan
| | - Takeshi Kuwada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Teruko Tomono
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Katsutoshi Kuriyama
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Hajime Yamazaki
- Department of Healthcare Epidemiology, School of Public Health in the Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Toshihiro Morita
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Saiko Marui
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Yuko Sogabe
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Nobuyuki Kakiuchi
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Tomoaki Matsumori
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Atsushi Mima
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Yoshihiro Nishikawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Tatsuki Ueda
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Motoyuki Tsuda
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Yuki Yamauchi
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Yojiro Sakuma
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Takahisa Maruno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Norimitsu Uza
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Tatsuaki Tsuruyama
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto 606-8507, Japan
| | - Tsuneyo Mimori
- Department of Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Tsutomu Chiba
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan.,Kansai Electric Power Hospital, Osaka 553-0003, Japan
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8
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Merry TL, Petrov MS. The rise of genetically engineered mouse models of pancreatitis: A review of literature. Biomol Concepts 2018; 9:103-114. [DOI: 10.1515/bmc-2018-0011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/19/2018] [Indexed: 12/15/2022] Open
Abstract
AbstractPancreatitis is increasingly recognized as not merely a local inflammation of the pancreas but also a disease with high frequency of systemic sequelae. Current understanding of the cellular mechanisms that trigger it and affect the development of sequelae are limited. Genetically engineered mouse models can be a useful tool to study the pathophysiology of pancreatitis. This article gives an overview of the genetically engineered mouse models that spontaneously develop pancreatitis and discusses those that most closely replicate different pancreatitis hallmarks observed in humans.
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Affiliation(s)
- Troy L. Merry
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Auckland, New Zealand
- Discipline of Nutrition, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Maxim S. Petrov
- Department of Surgery, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
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9
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Abstract
Hypoxia inducible factors (HIFs) are critical regulators of the response to oxygen deficiency by activating target genes involved in a variety of biological functions. HIFs have been implicated in the pathophysiology of numerous pathologies including cancer. Patients with mutations in the von Hippel-Lindau (VHL) gene, an essential regulator of HIF activity, develop tumors in several organs including the pancreas. Previous functional studies of HIF activation in the pancreas have used Vhlh (the murine homolog of VHL) deficient mice. However, the role of each specific HIF transcription factors in the pancreas has not been thoroughly examined. We derived mice that constitutively express a normoxia-stable form of HIF2α in the pancreas. Activation of HIF2α in the pancreas severely impairs postnatal exocrine pancreas. Mice with pancreas-specific activation of HIF2α develop histological features reminiscent of pancreatitis including loss of acinar cells, ductal dilation and fibrosis. Moreover, we provide evidence that signaling pathways important for acinar cell homeostasis are altered in HIF2α-overexpressing pancreata.
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10
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Saito Y, Desai RR, Muthuswamy SK. Reinterpreting polarity and cancer: The changing landscape from tumor suppression to tumor promotion. Biochim Biophys Acta Rev Cancer 2018; 1869:103-116. [DOI: 10.1016/j.bbcan.2017.12.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 12/08/2017] [Indexed: 12/21/2022]
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11
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Jeannot P, Callot C, Baer R, Duquesnes N, Guerra C, Guillermet-Guibert J, Bachs O, Besson A. Loss of p27Kip¹ promotes metaplasia in the pancreas via the regulation of Sox9 expression. Oncotarget 2016; 6:35880-92. [PMID: 26416424 PMCID: PMC4742148 DOI: 10.18632/oncotarget.5770] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 09/12/2015] [Indexed: 02/07/2023] Open
Abstract
p27Kip1 (p27) is a negative regulator of proliferation and a tumor suppressor via the inhibition of cyclin-CDK activity in the nucleus. p27 is also involved in the regulation of other cellular processes, including transcription by acting as a transcriptional co-repressor. Loss of p27 expression is frequently observed in pancreatic adenocarcinomas in human and is associated with decreased patient survival. Similarly, in a mouse model of K-Ras-driven pancreatic cancer, loss of p27 accelerates tumor development and shortens survival, suggesting an important role for p27 in pancreatic tumorigenesis. Here, we sought to determine how p27 might contribute to early events leading to tumor development in the pancreas. We found that K-Ras activation in the pancreas causes p27 mislocalization at pre-neoplastic stages. Moreover, loss of p27 or expression of a mutant p27 that does not bind cyclin-CDKs causes the mislocalization of several acinar polarity markers associated with metaplasia and induces the nuclear expression of Sox9 and Pdx1 two transcription factors involved in acinar-to-ductal metaplasia. Finally, we found that p27 directly represses transcription of Sox9, but not that of Pdx1. Thus, our results suggest that K-Ras activation, the earliest known event in pancreatic carcinogenesis, may cause loss of nuclear p27 expression which results in derepression of Sox9, triggering reprogrammation of acinar cells and metaplasia.
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Affiliation(s)
- Pauline Jeannot
- INSERM UMR1037, Cancer Research Center of Toulouse, Toulouse, France.,Université de Toulouse, Toulouse, France.,CNRS ERL5294, Toulouse, France
| | - Caroline Callot
- INSERM UMR1037, Cancer Research Center of Toulouse, Toulouse, France.,Université de Toulouse, Toulouse, France.,CNRS ERL5294, Toulouse, France
| | - Romain Baer
- INSERM UMR1037, Cancer Research Center of Toulouse, Toulouse, France.,Université de Toulouse, Toulouse, France
| | - Nicolas Duquesnes
- INSERM UMR1037, Cancer Research Center of Toulouse, Toulouse, France.,Université de Toulouse, Toulouse, France.,CNRS ERL5294, Toulouse, France
| | - Carmen Guerra
- Molecular Oncology, Centro Nacional de Investigaciones Oncológicas, Madrid, Spain
| | - Julie Guillermet-Guibert
- INSERM UMR1037, Cancer Research Center of Toulouse, Toulouse, France.,Université de Toulouse, Toulouse, France
| | - Oriol Bachs
- Department of Cell Biology, Immunology and Neurosciences, University of Barcelona - IDIBAPS, Barcelona, Spain
| | - Arnaud Besson
- INSERM UMR1037, Cancer Research Center of Toulouse, Toulouse, France.,Université de Toulouse, Toulouse, France.,CNRS ERL5294, Toulouse, France
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12
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Shih HP, Panlasigui D, Cirulli V, Sander M. ECM Signaling Regulates Collective Cellular Dynamics to Control Pancreas Branching Morphogenesis. Cell Rep 2015; 14:169-79. [PMID: 26748698 DOI: 10.1016/j.celrep.2015.12.027] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 10/23/2015] [Accepted: 11/30/2015] [Indexed: 01/01/2023] Open
Abstract
During pancreas development, epithelial buds undergo branching morphogenesis to form an exocrine and endocrine gland. Proper morphogenesis is necessary for correct lineage allocation of pancreatic progenitors; however, the cellular events underlying pancreas morphogenesis are unknown. Here, we employed time-lapse microscopy and fluorescent labeling of cells to analyze cell behaviors associated with pancreas morphogenesis. We observed that outer bud cells adjacent to the basement membrane are pleomorphic and rearrange frequently; additionally, they largely remain in the outer cell compartment even after mitosis. These cell behaviors and pancreas branching depend on cell contacts with the basement membrane, which induce actomyosin cytoskeleton remodeling via integrin-mediated activation of FAK/Src signaling. We show that integrin signaling reduces E-cadherin-mediated cell-cell adhesion in outer cells and provide genetic evidence that this regulation is necessary for initiation of branching. Our study suggests that regulation of cell motility and adhesion by local niche cues initiates pancreas branching morphogenesis.
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Affiliation(s)
- Hung Ping Shih
- Departments of Pediatrics and Cellular and Molecular Medicine, Pediatric Diabetes Research Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Devin Panlasigui
- Departments of Pediatrics and Cellular and Molecular Medicine, Pediatric Diabetes Research Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Vincenzo Cirulli
- Department of Medicine, Diabetes and Obesity Center of Excellence, Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA 98105, USA
| | - Maike Sander
- Departments of Pediatrics and Cellular and Molecular Medicine, Pediatric Diabetes Research Center, University of California San Diego, La Jolla, CA 92093, USA.
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13
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Wang YJ, McAllister F, Bailey JM, Scott SG, Hendley AM, Leach SD, Ghosh B. Dicer is required for maintenance of adult pancreatic acinar cell identity and plays a role in Kras-driven pancreatic neoplasia. PLoS One 2014; 9:e113127. [PMID: 25405615 PMCID: PMC4236134 DOI: 10.1371/journal.pone.0113127] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 10/20/2014] [Indexed: 11/18/2022] Open
Abstract
The role of miRNA processing in the maintenance of adult pancreatic acinar cell identity and during the initiation and progression of pancreatic neoplasia has not been studied in detail. In this work, we deleted Dicer specifically in adult pancreatic acinar cells, with or without simultaneous activation of oncogenic Kras. We found that Dicer is essential for the maintenance of acinar cell identity. Acinar cells lacking Dicer showed increased plasticity, as evidenced by loss of polarity, initiation of epithelial-to-mesenchymal transition (EMT) and acinar-to-ductal metaplasia (ADM). In the context of oncogenic Kras activation, the initiation of ADM and pancreatic intraepithelial neoplasia (PanIN) were both highly sensitive to Dicer gene dosage. Homozygous Dicer deletion accelerated the formation of ADM but not PanIN. In contrast, heterozygous Dicer deletion accelerated PanIN initiation, revealing complex roles for Dicer in the regulation of both normal and neoplastic pancreatic epithelial identity.
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Affiliation(s)
- Yue J. Wang
- The McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Florencia McAllister
- The Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Jennifer M. Bailey
- The McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- The Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Sherri-Gae Scott
- The Graduate Program in Cellular and Molecular Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Audrey M. Hendley
- The McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Steven D. Leach
- The McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- The Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
| | - Bidyut Ghosh
- The Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
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14
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Abstract
Cell polarity is characterised by differences in structure, composition and function between at least two poles of a cell. In epithelial cells, these spatial differences allow for the formation of defined apical and basal membranes. It has been increasingly recognised that cell-matrix interactions and integrins play an essential role in creating epithelial cell polarity, although key gaps in our knowledge remain. This Commentary will discuss the mounting evidence for the role of integrins in polarising epithelial cells. We build a model in which both inside-out signals to polarise basement membrane assembly at the basal surface, and outside-in signals to control microtubule apical-basal orientation and vesicular trafficking are required for establishing and maintaining the orientation of epithelial cell polarity. Finally, we discuss the relevance of the basal integrin polarity axis to cancer. This article is part of a Minifocus on Establishing polarity.
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Affiliation(s)
- Jessica L Lee
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Charles H Streuli
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Oxford Road, Manchester M13 9PT, UK
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15
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Delgiorno KE, Hall JC, Takeuchi KK, Pan FC, Halbrook CJ, Washington MK, Olive KP, Spence JR, Sipos B, Wright CVE, Wells JM, Crawford HC. Identification and manipulation of biliary metaplasia in pancreatic tumors. Gastroenterology 2014; 146:233-44.e5. [PMID: 23999170 PMCID: PMC3870045 DOI: 10.1053/j.gastro.2013.08.053] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 08/02/2013] [Accepted: 08/22/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Metaplasias often have characteristics of developmentally related tissues. Pancreatic metaplastic ducts are usually associated with pancreatitis and pancreatic ductal adenocarcinoma. The tuft cell is a chemosensory cell that responds to signals in the extracellular environment via effector molecules. Commonly found in the biliary tract, tuft cells are absent from normal murine pancreas. Using the aberrant appearance of tuft cells as an indicator, we tested if pancreatic metaplasia represents transdifferentiation to a biliary phenotype and what effect this has on pancreatic tumorigenesis. METHODS We analyzed pancreatic tissue and tumors that developed in mice that express an activated form of Kras (Kras(LSL-G12D/+);Ptf1a(Cre/+) mice). Normal bile duct, pancreatic duct, and tumor-associated metaplasias from the mice were analyzed for tuft cell and biliary progenitor markers, including SOX17, a transcription factor that regulates biliary development. We also analyzed pancreatic tissues from mice expressing transgenic SOX17 alone (ROSA(tTa/+);Ptf1(CreERTM/+);tetO-SOX17) or along with activated Kras (ROSAtT(a/+);Ptf1a(CreERTM/+);tetO-SOX17;Kras(LSL-G12D;+)). RESULTS Tuft cells were frequently found in areas of pancreatic metaplasia, decreased throughout tumor progression, and absent from invasive tumors. Analysis of the pancreatobiliary ductal systems of mice revealed tuft cells in the biliary tract but not the normal pancreatic duct. Analysis for biliary markers revealed expression of SOX17 in pancreatic metaplasia and tumors. Pancreas-specific overexpression of SOX17 led to ductal metaplasia along with inflammation and collagen deposition. Mice that overexpressed SOX17 along with Kras(G12D) had a greater degree of transformed tissue compared with mice expressing only Kras(G12D). Immunofluorescence analysis of human pancreatic tissue arrays revealed the presence of tuft cells in metaplasia and early-stage tumors, along with SOX17 expression, consistent with a biliary phenotype. CONCLUSIONS Expression of Kras(G12D) and SOX17 in mice induces development of metaplasias with a biliary phenotype containing tuft cells. Tuft cells express a number of tumorigenic factors that can alter the microenvironment. Expression of SOX17 induces pancreatitis and promotes Kras(G12D)-induced tumorigenesis in mice.
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Affiliation(s)
- Kathleen E Delgiorno
- Department of Molecular Genetics and Microbiology, Stony Brook University, Stony Brook, New York; Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida
| | - Jason C Hall
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida; Department of Pharmacological Sciences, Stony Brook University, Stony Brook, New York
| | | | - Fong Cheng Pan
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Christopher J Halbrook
- Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida; Department of Pharmacological Sciences, Stony Brook University, Stony Brook, New York
| | - M Kay Washington
- Department of Pathology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Kenneth P Olive
- Departments of Medicine and Pathology, Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, New York
| | - Jason R Spence
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Bence Sipos
- Department of Pathology, University Hospital Tubingen, Tubingen, Germany
| | - Christopher V E Wright
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - James M Wells
- Department of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Howard C Crawford
- Department of Molecular Genetics and Microbiology, Stony Brook University, Stony Brook, New York; Department of Cancer Biology, Mayo Clinic, Jacksonville, Florida.
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16
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Greer RL, Staley BK, Liou A, Hebrok M. Numb regulates acinar cell dedifferentiation and survival during pancreatic damage and acinar-to-ductal metaplasia. Gastroenterology 2013; 145:1088-1097.e8. [PMID: 23891977 PMCID: PMC3805717 DOI: 10.1053/j.gastro.2013.07.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 07/15/2013] [Accepted: 07/16/2013] [Indexed: 12/02/2022]
Abstract
BACKGROUND & AIMS Pancreatic ductal adenocarcinoma (PDA) is a leading cause of cancer-related death. Through the process of acinar-to-ductal metaplasia (ADM), pancreatic acinar cells give rise to pancreatic intraepithelial neoplasia (PanIN), the most common precursor of PDA. However, even when Kras is activated in a majority of acinar cells, ADM and subsequent development of PanINs is inefficient in the absence of additional stresses. Numb regulates cell junctions, integrins, and the activity of embryonic signaling pathways; therefore, we investigated its effects on acinar cell dedifferentiation, regeneration, and metaplasia. METHODS We used mouse models of pancreatic regeneration and PDA as well as mice with loss-of-function alleles of Numb (p48Cre/p48Cre(ER);Numb(f/f) and p48Cre/p48Cre(ER);Kras(G12D);Numb(f/f) mice) to study the roles of Numb in pancreatic regeneration and ADM. RESULTS Loss of Numb resulted in premature dedifferentiation of acinar cells in response to injury due to administration of the cholecystokinin analogue cerulein and interfered with acinar cell regeneration. Numb was found to regulate multiple signaling pathways in acinar cells during cerulein-induced pancreatitis. Disruption of Numb accelerated and destabilized ADM in the context of oncogenic Kras (in p48Cre;Kras(G12D);Numb(f/f) and p48Cre(ER);Kras(G12D);Numb(f/f) mice). CONCLUSIONS Numb is an important regulator of acinar cell differentiation and viability during metaplasia. In mice with pancreatitis or pancreatic injury, elimination of Numb causes dedifferentiated acinar cells to undergo apoptosis, and this is not mitigated by oncogenic Kras.
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Affiliation(s)
- Renee L Greer
- Diabetes Center, Department of Medicine, University of California, San Francisco, San Francisco, California
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17
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Diaferia GR, Jimenez-Caliani AJ, Ranjitkar P, Yang W, Hardiman G, Rhodes CJ, Crisa L, Cirulli V. β1 integrin is a crucial regulator of pancreatic β-cell expansion. Development 2013; 140:3360-72. [PMID: 23863477 DOI: 10.1242/dev.098533] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Development of the endocrine compartment of the pancreas, as represented by the islets of Langerhans, occurs through a series of highly regulated events encompassing branching of the pancreatic epithelium, delamination and differentiation of islet progenitors from ductal domains, followed by expansion and three-dimensional organization into islet clusters. Cellular interactions with the extracellular matrix (ECM) mediated by receptors of the integrin family are postulated to regulate key functions in these processes. Yet, specific events regulated by these receptors in the developing pancreas remain unknown. Here, we show that ablation of the β1 integrin gene in developing pancreatic β-cells reduces their ability to expand during embryonic life, during the first week of postnatal life, and thereafter. Mice lacking β1 integrin in insulin-producing cells exhibit a dramatic reduction of the number of β-cells to only ∼18% of wild-type levels. Despite the significant reduction in β-cell mass, these mutant mice are not diabetic. A thorough phenotypic analysis of β-cells lacking β1 integrin revealed a normal expression repertoire of β-cell markers, normal architectural organization within islet clusters, and a normal ultrastructure. Global gene expression analysis revealed that ablation of this ECM receptor in β-cells inhibits the expression of genes regulating cell cycle progression. Collectively, our results demonstrate that β1 integrin receptors function as crucial positive regulators of β-cell expansion.
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Affiliation(s)
- Giuseppe R Diaferia
- Department of Experimental Oncology, European Institute of Oncology (IEO), Via Adamello 16 20139, Milan, Italy
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18
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Ali WH, Chen Q, Delgiorno KE, Su W, Hall JC, Hongu T, Tian H, Kanaho Y, Di Paolo G, Crawford HC, Frohman MA. Deficiencies of the lipid-signaling enzymes phospholipase D1 and D2 alter cytoskeletal organization, macrophage phagocytosis, and cytokine-stimulated neutrophil recruitment. PLoS One 2013; 8:e55325. [PMID: 23383154 PMCID: PMC3557251 DOI: 10.1371/journal.pone.0055325] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 12/21/2012] [Indexed: 01/01/2023] Open
Abstract
Cell migration and phagocytosis ensue from extracellular-initiated signaling cascades that orchestrate dynamic reorganization of the actin cytoskeleton. The reorganization is mediated by effector proteins recruited to the site of activity by locally-generated lipid second messengers. Phosphatidic acid (PA), a membrane phospholipid generated by multiple enzyme families including Phospholipase D (PLD), has been proposed to function in this role. Here, we show that macrophages prepared from mice lacking either of the classical PLD isoforms PLD1 or PLD2, or wild-type macrophages whose PLD activity has been pharmacologically inhibited, display isoform-specific actin cytoskeleton abnormalities that likely underlie decreases observed in phagocytic capacity. Unexpectedly, PA continued to be detected on the phagosome in the absence of either isoform and even when all PLD activity was eliminated. However, a disorganized phagocytic cup was observed as visualized by imaging PA, F-actin, Rac1, an organizer of the F-actin network, and DOCK2, a Rac1 activator, suggesting that PLD-mediated PA production during phagocytosis is specifically critical for the integrity of the process. The abnormal F-actin reorganization additionally impacted neutrophil migration and extravasation from the vasculature into interstitial tissues. Although both PLD1 and PLD2 were important in these processes, we also observed isoform-specific functions. PLD1-driven processes in particular were observed to be critical in transmigration of macrophages exiting the vasculature during immune responses such as those seen in acute pancreatitis or irritant-induced skin vascularization.
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Affiliation(s)
- Wahida H. Ali
- Department of Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
- Center for Developmental Genetics, Stony Brook University, Stony Brook, New York, United States of America
- Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
| | - Qin Chen
- Department of Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
- Center for Developmental Genetics, Stony Brook University, Stony Brook, New York, United States of America
| | - Kathleen E. Delgiorno
- Department of Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
- Center for Developmental Genetics, Stony Brook University, Stony Brook, New York, United States of America
- Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
| | - Wenjuan Su
- Department of Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
- Center for Developmental Genetics, Stony Brook University, Stony Brook, New York, United States of America
| | - Jason C. Hall
- Department of Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
- Center for Developmental Genetics, Stony Brook University, Stony Brook, New York, United States of America
- Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
| | - Tsunaki Hongu
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Huasong Tian
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, United States of America
| | - Yasunori Kanaho
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Gilbert Di Paolo
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, United States of America
| | - Howard C. Crawford
- Department of Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
- Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
| | - Michael A. Frohman
- Department of Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
- Center for Developmental Genetics, Stony Brook University, Stony Brook, New York, United States of America
- Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University, Stony Brook, New York, United States of America
- * E-mail:
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19
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β1 integrin-extracellular matrix interactions are essential for maintaining exocrine pancreas architecture and function. J Transl Med 2013; 93:31-40. [PMID: 23069938 DOI: 10.1038/labinvest.2012.147] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Integrin receptors are responsible for integrating extracellular matrix signals inside the cell. The most prominent integrin receptor, β1 integrin, has a role in cell function, survival and differentiation. Recently, we demonstrated a profound in vivo role of β1 integrin expression in the pancreas on glucose homeostasis and islet function. Here, we extend these results by examining the role of β1 integrin in exocrine pancreatic structure and function. Adult C57Bl/6 mice hemizygous for a collagen type Iα2 (Col1a2) promoter-controlled tamoxifen-inducible Cre recombinase gene and homozygous for loxP-β1 integrin were injected with tamoxifen or corn oil to generate mice deleted or not for β1 integrin. Pancreata derived from these male mice were analyzed by quantitative reverse transcriptase-polymerase chain reaction, western blot and immunofluorescence. Our results showed that β1 integrin-deficient mice displayed a significant decrease in pancreas weight with a significant reduction of amylase, regenerating islet-derived protein II and carboxypeptidase-A expression (P<0.05-0.01). Compared with control pancreata, β1 integrin-deficient pancreata showed reduced mRNA expression of extracellular matrix (collagen type Iα2, fibronectin and laminin) genes (P<0.05), detached acini clusters and lost focal adhesion structure. Moreover, β1 integrin-deficient pancreatic acinar cells displayed decreased proliferation (P<0.05) and increased apoptosis (P<0.001). Apoptosis was reduced to that of controls when isolated exocrine clusters were cultured in media supplemented with extracellular matrix proteins. Taken together, these results implicate β1 integrin as an essential component for maintaining exocrine pancreatic structure and function.
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20
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Tanimizu N, Kikkawa Y, Mitaka T, Miyajima A. α1- and α5-containing laminins regulate the development of bile ducts via β1 integrin signals. J Biol Chem 2012; 287:28586-97. [PMID: 22761447 PMCID: PMC3436529 DOI: 10.1074/jbc.m112.350488] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 06/24/2012] [Indexed: 12/31/2022] Open
Abstract
Signals derived from basal lamina components are important for developing three-dimensional architecture of epithelial tissues. Laminins consisting of α, β, and γ subunits in basal lamina play pivotal roles in the formation and maintenance of epithelial tissue structures. However, it remains unclear which laminin isoforms transmit signals and how epithelial cells receive them to regulate multiple developmental processes. In three-dimensional culture of a liver progenitor cell line, Hepatic Progenitor Cells Proliferating on Laminin (HPPL), the cells establish apicobasal polarity and form cysts with a central lumen. Neutralizing antibody against β1 integrin blocked the formation and maintenance of the cyst structure, indicating that β1 integrin signaling was necessary throughout the morphogenesis. Although the addition of α1-containing laminin, a ligand of β1 integrin, induced cyst formation, it was dispensable for the maintenance of the cyst, suggesting that HPPL produces another ligand for β1 integrin to maintain the structure. Indeed, we found that HPPL produced α5-containing laminin, and siRNA against laminin α5 partially inhibited the lumen formation. In fetal liver, p75NTR(+) periportal fibroblasts and bile duct epithelial cells, known as cholangiocytes, expressed α1- and α5-containing laminins, respectively. In laminin α5 KO liver, cholangiocytes normally emerged, but the number of bile ducts was decreased. These results suggest that α1-containing laminin is sufficient as a component of the basal lamina for the commitment of bipotential liver progenitors to cholangiocytes and the apicobasal polarization, whereas α5-containing laminin is necessary for the formation of mature duct structures. Thus, α1- and α5-containing laminins differentially regulate the sequential events to form epithelial tissues via β1 integrin signals.
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Affiliation(s)
- Naoki Tanimizu
- From the Department of Tissue Development and Regeneration, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, S-1, W-17, Chuo-ku, Sapporo, 060-8556, Japan
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Yamato Kikkawa
- Laboratory of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji 192-0392, Japan, and
| | - Toshihiro Mitaka
- From the Department of Tissue Development and Regeneration, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, S-1, W-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Atsushi Miyajima
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan
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Pozzi A, Zent R. Extracellular matrix receptors in branched organs. Curr Opin Cell Biol 2011; 23:547-53. [PMID: 21561755 PMCID: PMC3181278 DOI: 10.1016/j.ceb.2011.04.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2011] [Revised: 04/12/2011] [Accepted: 04/13/2011] [Indexed: 10/18/2022]
Abstract
Organ branching morphogenesis is a complex process that requires many coordinated cell functions, including cell migration, proliferation, and polarization. This process is regulated at numerous levels, including spatial and temporal expression of transcription factors and their regulators; growth factors and their receptors; as well as cell-cell and cell-extracellular matrix interactions. Integrins and dystroglycan are transmembrane receptors that control both the adhesion of cells to matrix components as well as transduction of signaling coming from and directed to the matrix. In this article we review current advances defining the roles of these receptors in branching morphogenesis focusing on the major epithelial cell derived structures in mammals, namely salivary gland, mammary gland, lung, pancreas, and kidney.
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Affiliation(s)
- Ambra Pozzi
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center and Veterans Affairs Hospital, Nashville, TN 37232, USA
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Lee OR, Sathiyaraj G, Kim YJ, In JG, Kwon WS, Kim JH, Yang DC. Defense Genes Induced by Pathogens and Abiotic Stresses in Panax ginseng C.A. Meyer. J Ginseng Res 2011. [DOI: 10.5142/jgr.2011.35.1.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Kim YO, Lee SW. Microarray Analysis of Gene Expression by Ginseng Water Extracts in a Mouse Adrenal Cortex after Immobilization Stress. J Ginseng Res 2011. [DOI: 10.5142/jgr.2011.35.1.111] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Riopel M, Krishnamurthy M, Li J, Liu S, Leask A, Wang R. Conditional β1-integrin-deficient mice display impaired pancreatic β cell function. J Pathol 2011; 224:45-55. [PMID: 21381031 DOI: 10.1002/path.2849] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 12/17/2010] [Accepted: 12/21/2010] [Indexed: 12/13/2022]
Abstract
β1-Integrin, a critical regulator of β cell survival and function, has been shown to protect against cell death and promote insulin expression and secretion in rat and human islet cells in vitro. The aim of the present study was to examine whether the knockout of β1-integrin in collagen I-producing cells would have physiological and functional implications in pancreatic endocrine cells in vivo. Using adult mice with a conditional knockout of β1-integrin in collagen I-producing cells, the effects of β1-integrin deficiency on glucose metabolism and pancreatic endocrine cells were examined. Male β1-integrin-deficient mice display impaired glucose tolerance, with a significant reduction in pancreatic insulin content (p < 0.01). Morphometric analysis revealed a significant reduction in β cell mass (p < 0.001) in β1-integrin-deficient mice, along with a significant decrease in β cell proliferation, Pdx-1 and Nkx6.1 expression when compared with controls. Interestingly, these physiological and morphometric alterations in female β1-integrin-deficient mice were less significant. Furthermore, β1-integrin-deficient mice displayed decreased FAK (p < 0.05) and ERK1/2 (p < 0.001) phosphorylation, reduced cyclin D1 levels (p < 0.001) and increased caspase 3 cleavage (p < 0.01), while no changes in Akt phosphorylation were observed, indicating that the β1-integrin signals through the FAK-MAPK-ERK pathway in vivo. Our results demonstrate that β1-integrin is involved in the regulation of glucose metabolism and contributes to the maintenance of β cell survival and function in vivo.
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Affiliation(s)
- M Riopel
- Children's Health Research Institute, University of Western Ontario, London, ON, Canada
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