1
|
Ding G, Mu-Guo S. Inhibition of Wnt11 impairs the osteogenesis and aggravates the inflammatory response of human mesenchymal stem cells under LPS-induced inflammatory condition. Biochem Biophys Res Commun 2023; 661:82-88. [PMID: 37087802 DOI: 10.1016/j.bbrc.2023.04.027] [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: 03/26/2023] [Accepted: 04/13/2023] [Indexed: 04/25/2023]
Abstract
In infectious bone defect, osteogenesis is very particularly important for treating. Currently, mesenchymal stem cells (MSCs) become a promising treatment protocol in clinical practice. In infectious environment, lipopolysaccharide (LPS) not only affects the osteogenic differentiation of MSCs, but also incurs inflammatory reaction from the host or cells and prompts the secretion of inflammatory cytokines. Wnt11 plays an important role of enhancing osteogenic ability of MSCs in treating bone infectious animal model in vivo. However, whether Wnt11 enhances the osteogenic capacity or influences the inflammatory reaction under inflammatory condition mediated by LPS in vitro remains unknown. In this study, we investigated the role of Wnt11 on the osteogenic differentiation of bone marrow mesenchymal stem cells (BM-MSCs) and the effect on the inflammatory reaction induced by LPS. Effects of Wnt11 on the osteogenic capacity of BM-MSCs and on the inhibition of inflammatory reaction induced by LPS were evaluated by Wnt11 RNAi assay, Alizarin staining, quantitative RT-PCR test, ALP activity test and ELISA assays. The results showed inhibiting Wnt11 expression exacerbated the expression of osteogenic differentiation related genes and decreased the mineral deposits formation. Moreover, inhibiting Wnt11 expression also exacerbated the inflammatory factors release, indicating Wnt11 might play an important role of enhancing the osteogenic differentiation of BM-MSCs and inhibiting the inflammatory reaction induced by LPS.
Collapse
Affiliation(s)
- Gao Ding
- Department of Orthopaedics, Meizhou People's Hospital, Meizhou, Guangdong Province, China
| | - Song Mu-Guo
- Kunming Medical University, Kunming, 650032, China; Department of Orthopaedics, 920th Hospital of Joint Logistics Support Force, PLA, Kunming, 650032, China.
| |
Collapse
|
2
|
Caetano da Silva C, Edouard T, Fradin M, Aubert-Mucca M, Ricquebourg M, Raman R, Salles JP, Charon V, Guggenbuhl P, Muller M, Cohen-Solal M, Collet C. WNT11, a new gene associated with early onset osteoporosis, is required for osteoblastogenesis. Hum Mol Genet 2022; 31:1622-1634. [PMID: 34875064 PMCID: PMC9122655 DOI: 10.1093/hmg/ddab349] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 11/12/2022] Open
Abstract
Monogenic early onset osteoporosis (EOOP) is a rare disease defined by low bone mineral density (BMD) that results in increased risk of fracture in children and young adults. Although several causative genes have been identified, some of the EOOP causation remains unresolved. Whole-exome sequencing revealed a de novo heterozygous loss-of-function mutation in Wnt family member 11 (WNT11) (NM_004626.2:c.677_678dup p.Leu227Glyfs*22) in a 4-year-old boy with low BMD and fractures. We identified two heterozygous WNT11 missense variants (NM_004626.2:c.217G > A p.Ala73Thr) and (NM_004626.2:c.865G > A p.Val289Met) in a 51-year-old woman and in a 61-year-old woman, respectively, both with bone fragility. U2OS cells with heterozygous WNT11 mutation (NM_004626.2:c.690_721delfs*40) generated by CRISPR-Cas9 showed reduced cell proliferation (30%) and osteoblast differentiation (80%) as compared with wild-type U2OS cells. The expression of genes in the Wnt canonical and non-canonical pathways was inhibited in these mutant cells, but recombinant WNT11 treatment rescued the expression of Wnt pathway target genes. Furthermore, the expression of RSPO2, a WNT11 target involved in bone cell differentiation, and its receptor leucine-rich repeat containing G protein-coupled receptor 5 (LGR5), was decreased in WNT11 mutant cells. Treatment with WNT5A and WNT11 recombinant proteins reversed LGR5 expression, but Wnt family member 3A (WNT3A) recombinant protein treatment had no effect on LGR5 expression in mutant cells. Moreover, treatment with recombinant RSPO2 but not WNT11 or WNT3A activated the canonical pathway in mutant cells. In conclusion, we have identified WNT11 as a new gene responsible for EOOP, with loss-of-function variant inhibiting bone formation via Wnt canonical and non-canonical pathways. WNT11 may activate Wnt signaling by inducing the RSPO2-LGR5 complex via the non-canonical Wnt pathway.
Collapse
Affiliation(s)
- Caroline Caetano da Silva
- INSERM U1132 and Université de Paris, Reference Centre for Rare Bone Diseases, Hospital Lariboisière, Paris F-75010, France
| | - Thomas Edouard
- Endocrine Bone Diseases and Genetics Unit, Reference Centre for Rare Diseases of Calcium and Phosphate Metabolism, ERN BOND, OSCAR Network, Pediatric Clinical Research Unit, Children’s Hospital, RESTORE INSERM U1301, Toulouse University Hospital, Toulouse 31300, France
| | - Melanie Fradin
- Service de Génétique Clinique, Centre de Référence des Anomalies du Développement de l'Ouest, Hôpital Sud de Rennes, Rennes F-35033, France
| | - Marion Aubert-Mucca
- Endocrine Bone Diseases and Genetics Unit, Reference Centre for Rare Diseases of Calcium and Phosphate Metabolism, ERN BOND, OSCAR Network, Pediatric Clinical Research Unit, Children’s Hospital, RESTORE INSERM U1301, Toulouse University Hospital, Toulouse 31300, France
| | - Manon Ricquebourg
- INSERM U1132 and Université de Paris, Reference Centre for Rare Bone Diseases, Hospital Lariboisière, Paris F-75010, France
| | - Ratish Raman
- Laboratory for Organogenesis and Regeneration (LOR), GIGA-Research, Liège University, Liège 4000, Belgium
| | - Jean Pierre Salles
- Endocrine Bone Diseases and Genetics Unit, Reference Centre for Rare Diseases of Calcium and Phosphate Metabolism, ERN BOND, OSCAR Network, Pediatric Clinical Research Unit, Children’s Hospital, RESTORE INSERM U1301, Toulouse University Hospital, Toulouse 31300, France
| | - Valérie Charon
- Department of Radiology, CHU de Rennes, Rennes F-35000, France
| | | | - Marc Muller
- Laboratory for Organogenesis and Regeneration (LOR), GIGA-Research, Liège University, Liège 4000, Belgium
| | - Martine Cohen-Solal
- INSERM U1132 and Université de Paris, Reference Centre for Rare Bone Diseases, Hospital Lariboisière, Paris F-75010, France
| | - Corinne Collet
- INSERM U1132 and Université de Paris, Reference Centre for Rare Bone Diseases, Hospital Lariboisière, Paris F-75010, France
- Département de Génétique, UF de Génétique Moléculaire, Hôpital Robert Debré, APHP, Paris F-75019, France
| |
Collapse
|
3
|
Little DW, Dumontet T, LaPensee CR, Hammer GD. β-catenin in adrenal zonation and disease. Mol Cell Endocrinol 2021; 522:111120. [PMID: 33338548 PMCID: PMC8006471 DOI: 10.1016/j.mce.2020.111120] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 12/25/2022]
Abstract
The Wnt signaling pathway is a critical mediator of the development and maintenance of several tissues. The adrenal cortex is highly dependent upon Wnt/β-catenin signaling for proper zonation and endocrine function. Adrenocortical cells emerge in the peripheral capsule and subcapsular cortex of the gland as progenitor cells that centripetally differentiate into steroid hormone-producing cells of three functionally distinct concentric zones that respond robustly to various endocrine stimuli. Wnt/β-catenin signaling mediates adrenocortical progenitor cell fate and tissue renewal to maintain the gland throughout life. Aberrant Wnt/β-catenin signaling contributes to various adrenal disorders of steroid production and growth that range from hypofunction and hypoplasia to hyperfunction, hyperplasia, benign adrenocortical adenomas, and malignant adrenocortical carcinomas. Great strides have been made in defining the molecular underpinnings of adrenocortical homeostasis and disease, including the interplay between the capsule and cortex, critical components involved in maintaining the adrenocortical Wnt/β-catenin signaling gradient, and new targets in adrenal cancer. This review seeks to examine these and other recent advancements in understanding adrenocortical Wnt/β-catenin signaling and how this knowledge can inform therapeutic options for adrenal disease.
Collapse
Affiliation(s)
| | - Typhanie Dumontet
- Training Program in Organogenesis, Center for Cell Plasticity and Organ Design, USA; Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, USA
| | - Christopher R LaPensee
- Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, USA
| | - Gary D Hammer
- Doctoral Program in Cancer Biology, USA; Training Program in Organogenesis, Center for Cell Plasticity and Organ Design, USA; Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, USA; Endocrine Oncology Program, Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA.
| |
Collapse
|
4
|
Hu Y, Ciminieri C, Hu Q, Lehmann M, Königshoff M, Gosens R. WNT Signalling in Lung Physiology and Pathology. Handb Exp Pharmacol 2021; 269:305-336. [PMID: 34463851 DOI: 10.1007/164_2021_521] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The main physiological function of the lung is gas exchange, mediated at the interface between the alveoli and the pulmonary microcapillary network and facilitated by conducting airway structures that regulate the transport of these gases from and to the alveoli. Exposure to microbial and environmental factors such as allergens, viruses, air pollution, and smoke contributes to the development of chronic lung diseases such as asthma, chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), and lung cancer. Respiratory diseases as a cluster are the commonest cause of chronic disease and of hospitalization in children and are among the three most common causes of morbidity and mortality in the adult population worldwide. Many of these chronic respiratory diseases are associated with inflammation and structural remodelling of the airways and/or alveolar tissues. They can often only be treated symptomatically with no disease-modifying therapies that normalize the pathological tissue destruction driven by inflammation and remodelling. In search for novel therapeutic strategies for these diseases, several lines of evidence revealed the WNT pathway as an emerging target for regenerative strategies in the lung. WNT proteins, their receptors, and signalling effectors have central regulatory roles under (patho)physiological conditions underpinning lung function and (chronic) lung diseases and we summarize these roles and discuss how pharmacological targeting of the WNT pathway may be utilized for the treatment of chronic lung diseases.
Collapse
Affiliation(s)
- Yan Hu
- Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Chiara Ciminieri
- Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Aurora, CO, USA.,Department of Molecular Pharmacology, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, The Netherlands
| | - Qianjiang Hu
- Lung Repair and Regeneration Unit, Helmholtz-Zentrum Munich, Ludwig-Maximilians-University, University Hospital Grosshadern, Munich, Germany
| | - Mareike Lehmann
- Lung Repair and Regeneration Unit, Helmholtz-Zentrum Munich, Ludwig-Maximilians-University, University Hospital Grosshadern, Munich, Germany
| | - Melanie Königshoff
- Lung Repair and Regeneration Unit, Helmholtz-Zentrum Munich, Ludwig-Maximilians-University, University Hospital Grosshadern, Munich, Germany. .,Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Reinoud Gosens
- Department of Molecular Pharmacology, Groningen Research Institute for Asthma and COPD, University of Groningen, Groningen, The Netherlands.
| |
Collapse
|
5
|
Noncanonical Wnt planar cell polarity signaling in lung development and disease. Biochem Soc Trans 2020; 48:231-243. [PMID: 32096543 DOI: 10.1042/bst20190597] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 02/06/2023]
Abstract
The planar cell polarity (PCP) signaling pathway is a potent developmental regulator of directional cell behaviors such as migration, asymmetric division and morphological polarization that are critical for shaping the body axis and the complex three-dimensional architecture of tissues and organs. PCP is considered a noncanonical Wnt pathway due to the involvement of Wnt ligands and Frizzled family receptors in the absence of the beta-catenin driven gene expression observed in the canonical Wnt cascade. At the heart of the PCP mechanism are protein complexes capable of generating molecular asymmetries within cells along a tissue-wide axis that are translated into polarized actin and microtubule cytoskeletal dynamics. PCP has emerged as an important regulator of developmental, homeostatic and disease processes in the respiratory system. It acts along other signaling pathways to create the elaborately branched structure of the lung by controlling the directional protrusive movements of cells during branching morphogenesis. PCP operates in the airway epithelium to establish and maintain the orientation of respiratory cilia along the airway axis for anatomically directed mucociliary clearance. It also regulates the establishment of the pulmonary vasculature. In adult tissues, PCP dysfunction has been linked to a variety of chronic lung diseases such as cystic fibrosis, chronic obstructive pulmonary disease, and idiopathic pulmonary arterial hypertension, stemming chiefly from the breakdown of proper tissue structure and function and aberrant cell migration during regenerative wound healing. A better understanding of these (impaired) PCP mechanisms is needed to fully harness the therapeutic opportunities of targeting PCP in chronic lung diseases.
Collapse
|
6
|
Liu J, Zhou Y, Liu Y, Li L, Chen Y, Liu Y, Feng Y, Yosypiv IV, Song R, Peng H. (Pro)renin receptor regulates lung development via the Wnt/β-catenin signaling pathway. Am J Physiol Lung Cell Mol Physiol 2019; 317:L202-L211. [PMID: 31042081 PMCID: PMC6734386 DOI: 10.1152/ajplung.00295.2018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 02/01/2019] [Accepted: 04/28/2019] [Indexed: 11/22/2022] Open
Abstract
The (pro)renin receptor [(P)RR] binds to prorenin to activate the renin-angiotensin system and is essential for the development of many different organ systems. Whether the (P)RR also plays a role in lung development is unknown. Immunostaining was used to determine the spatial-temporal distribution of (P)RR in the embryonic, postnatal, and adult lungs. We created a lung-specific (P)RR knockout mouse [Foxd1cre/+-(P)RRflox/flox] and assessed changes in lung morphology, cell proliferation, and apoptosis using immunohistochemistry and TUNEL staining. (P)RR function was confirmed by using siRNA to knock down (P)RR in human bronchial epithelial cells (HBECs) and then using the CCK-8 assay and flow cytometry to assess cell proliferation and apoptosis. Gene expression changes after knockdown were assessed by RT-PCR and Western blotting. (P)RR is expressed in the club cells of the bronchial epithelium, and expression increases throughout development. Lung-specific (P)RR knockout disrupted branching morphogenesis, leading to lung hypoplasia and neonatal mortality. These defects were associated with increased apoptosis and decreased proliferation of the pulmonary epithelial and mesenchymal cells and may be mediated by downregulation of Wnt11, β-catenin, and Axin2. (P)RR regulates lung development through canonical Wnt/β-catenin signaling and may present a new target for strategies to treat lung hypoplasia.
Collapse
Affiliation(s)
- Jie Liu
- Department of Pediatrics, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yafan Zhou
- Department of Physiology, School of Basic Medicine and Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, China
| | - Yalan Liu
- Department of Pediatrics, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Li
- Department of Pediatrics, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Chen
- Department of Pediatrics, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yali Liu
- Department of Pediatrics, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yumei Feng
- Department of Pharmacology, Center for Cardiovascular Research, University of Nevada School of Medicine, Reno, Nevada
| | - Ihor V Yosypiv
- Department of Pediatrics, Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Renfang Song
- Department of Pediatrics, Hypertension and Renal Center of Excellence, Tulane University School of Medicine, New Orleans, Louisiana
| | - Hua Peng
- Department of Pediatrics, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
7
|
Postlethwait JH, Navajas Acedo J, Piotrowski T. Evolutionary Origin and Nomenclature of Vertebrate Wnt11-Family Genes. Zebrafish 2019; 16:469-476. [PMID: 31295059 DOI: 10.1089/zeb.2019.1760] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
To adequately connect zebrafish medical models to human biology, it is essential that gene nomenclature reflects gene orthology. Analysis of gene phylogenies and conserved syntenies shows that the zebrafish gene currently called wnt11 (ENSDARG00000004256, ZFIN ID: ZDB-GENE-990603-12) is not the ortholog of the human gene called WNT11 (ENSG00000085741); instead, the gene currently called wnt11r (ENSDARG00000014796, ZFIN ID: ZDB-GENE-980526-249) is the zebrafish ortholog of human WNT11. Genomic analysis of Wnt11-family genes suggests a model for the birth of Wnt11-family gene ohnologs in genome duplication events, provides a mechanism for the death of a Wnt11-family ohnolog in mammals after they diverged from birds, and suggests revised nomenclature to better connect teleost disease models to human biology.
Collapse
|
8
|
Wu Y, Lin X, Lim IY, Chen L, Teh AL, MacIsaac JL, Tan KH, Kobor MS, Chong YS, Gluckman PD, Karnani N. Analysis of two birth tissues provides new insights into the epigenetic landscape of neonates born preterm. Clin Epigenetics 2019; 11:26. [PMID: 30744680 PMCID: PMC6371604 DOI: 10.1186/s13148-018-0599-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 12/17/2018] [Indexed: 01/04/2023] Open
Abstract
Background Preterm birth (PTB), defined as child birth before completion of 37 weeks of gestation, is a major challenge in perinatal health care and can bear long-term medical and financial burden. Over a million children die each year due to PTB complications, and those who survive can face developmental delays. Unfortunately, our understanding of the molecular pathways associated with PTB remains limited. There is a growing body of evidence suggesting the role of DNA methylation (DNAm) in mediating the effects of PTB on future health outcomes. Thus, epigenome-wide association studies (EWAS), where DNAm sites are examined for associations with PTB, can help shed light on the biological mechanisms linking the two. Results In an Asian cohort of 1019 infants (68 preterm, 951 full term), we examined and compared the associations between PTB and genome-wide DNAm profiles using both cord tissue (n = 1019) and cord blood (n = 332) samples on Infinium HumanMethylation450 arrays. PTB was significantly associated (P < 5.8e−7) with DNAm at 296 CpGs (209 genes) in the cord blood. Over 95% of these CpGs were replicated in other PTB/gestational age EWAS conducted in (cord) blood. This replication was apparent even across populations of different ethnic origin (Asians, Caucasians, and African Americans). More than a third of these 296 CpGs were replicated in at least 4 independent studies, thereby identifying a robust set of PTB-linked epigenetic signatures in cord blood. Interrogation of cord tissue in addition to cord blood provided novel insights into the epigenetic status of the neonates born preterm. Overall, 994 CpGs (608 genes, P < 3.7e−7) associated with PTB in cord tissue, of which only 10 of these CpGs were identified in the analysis using cord blood. Genes from cord tissue showed enrichment of molecular pathways related to fetal growth and development, while those from cord blood showed enrichment of immune response pathways. A substantial number of PTB-associated CpGs from both the birth tissues were also associated with gestational age. Conclusions Our findings provide insights into the epigenetic landscape of neonates born preterm, and that its status is captured more comprehensively by interrogation of more than one neonatal tissue in tandem. Both these neonatal tissues are clinically relevant in their unique ways and require careful consideration in identification of biomarkers related to PTB and gestational age. Trial registration This birth cohort is a prospective observational study designed to study the developmental origins of health and disease, and was retrospectively registered on 1 July 2010 under the identifier NCT01174875. Electronic supplementary material The online version of this article (10.1186/s13148-018-0599-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yonghui Wu
- Singapore Institute for Clinical Sciences, A*STAR, 30 Medical Drive, Singapore, 117609, Singapore
| | - Xinyi Lin
- Singapore Institute for Clinical Sciences, A*STAR, 30 Medical Drive, Singapore, 117609, Singapore.,Duke-NUS Medical School, Singapore, Singapore
| | - Ives Yubin Lim
- Singapore Institute for Clinical Sciences, A*STAR, 30 Medical Drive, Singapore, 117609, Singapore
| | - Li Chen
- Singapore Institute for Clinical Sciences, A*STAR, 30 Medical Drive, Singapore, 117609, Singapore
| | - Ai Ling Teh
- Singapore Institute for Clinical Sciences, A*STAR, 30 Medical Drive, Singapore, 117609, Singapore
| | - Julia L MacIsaac
- Department of Medical Genetics, Centre for Molecular Medicine and Therapeutics, Child and Family Research Institute, University of British Columbia, Vancouver, Canada
| | - Kok Hian Tan
- KK Women's and Children's Hospital, Singapore, Singapore
| | - Michael S Kobor
- Department of Medical Genetics, Centre for Molecular Medicine and Therapeutics, Child and Family Research Institute, University of British Columbia, Vancouver, Canada
| | - Yap Seng Chong
- Singapore Institute for Clinical Sciences, A*STAR, 30 Medical Drive, Singapore, 117609, Singapore.,Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Peter D Gluckman
- Singapore Institute for Clinical Sciences, A*STAR, 30 Medical Drive, Singapore, 117609, Singapore.,Centre for Human Evolution, Adaptation and Disease, Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Neerja Karnani
- Singapore Institute for Clinical Sciences, A*STAR, 30 Medical Drive, Singapore, 117609, Singapore. .,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
| |
Collapse
|
9
|
Chanda D, Otoupalova E, Smith SR, Volckaert T, De Langhe SP, Thannickal VJ. Developmental pathways in the pathogenesis of lung fibrosis. Mol Aspects Med 2018; 65:56-69. [PMID: 30130563 DOI: 10.1016/j.mam.2018.08.004] [Citation(s) in RCA: 285] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 08/17/2018] [Indexed: 12/20/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and terminal lung disease with no known cure. IPF is a disease of aging, with median age of diagnosis over 65 years. Median survival is between 3 and 5 years after diagnosis. IPF is characterized primarily by excessive deposition of extracellular matrix (ECM) proteins by activated lung fibroblasts and myofibroblasts, resulting in reduced gas exchange and impaired pulmonary function. Growing evidence supports the concept of a pro-fibrotic environment orchestrated by underlying factors such as genetic predisposition, chronic injury and aging, oxidative stress, and impaired regenerative responses may account for disease development and persistence. Currently, two FDA approved drugs have limited efficacy in the treatment of IPF. Many of the genes and gene networks associated with lung development are induced or activated in IPF. In this review, we analyze current knowledge in the field, gained from both basic and clinical research, to provide new insights into the disease process, and potential approaches to treatment of pulmonary fibrosis.
Collapse
Affiliation(s)
- Diptiman Chanda
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
| | - Eva Otoupalova
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Samuel R Smith
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Thomas Volckaert
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Stijn P De Langhe
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
| |
Collapse
|
10
|
Zhu JH, Liao YP, Li FS, Hu Y, Li Q, Ma Y, Wang H, Zhou Y, He BC, Su YX. Wnt11 promotes BMP9-induced osteogenic differentiation through BMPs/Smads and p38 MAPK in mesenchymal stem cells. J Cell Biochem 2018; 119:9462-9473. [PMID: 30010216 DOI: 10.1002/jcb.27262] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 06/22/2018] [Indexed: 12/20/2022]
Abstract
Bone morphogenetic protein 9 (BMP9), as one of the most potent osteogenic factors, is a promising cytokine for bone tissue engineering. Wnt11 can regulate the development of the skeletal system and is related to high bone mass syndrome. However, the effect of Wnt11 on BMP9-induced osteogenic differentiation remains unknown. In this study, we investigated the relationship between Wnt11- and BMP9-induced osteogenic differentiation in mesenchymal stem cells (MSCs). We recapitulated the osteogenic potential of BMP9 in C3H10T1/2 cells. The messenger RNA expression of Wnt11 is detectable in the available progenitor cells, and BMP9 can obviously increase the protein level of Wnt11 in these cells. Exogenous Wnt11 potentiates the effect of BMP9 on increasing alkaline phosphatase (ALP) activities, the expression of osteopontin (OPN), and Runt-related transcription factor 2 (Runx2), so does matrix mineralization in C3H10T1/2 cells. Although Wnt11 cannot increase the BMP9-induced ectopic bone formation, it can increase the bone density induced by BMP9 apparently. Wnt11 increases the level of p-Smad1/5/8, as well as p-p38. Meanwhile, Wnt11 promotes the effect of BMP9 on increasing the levels of p-Smad1/5/8 and p-p38. Inhibition of p38 decreases the BMP9-induced ALP activities, the expression of OPN, and the mineralization in C3H10T1/2 cells. However, all of these effects of the p38 inhibitor on BMP9-induced osteogenic markers can be almost reversed by the overexpression of Wnt11. Our findings suggested that Wnt11 can enhance the osteogenic potential of BMP9 in MSCs, and this effect may be partly mediated through enhancing BMPs/Smads and the p38 MAPK signal, which was induced by BMP9.
Collapse
Affiliation(s)
- Jia-Hui Zhu
- Department of Orthopedic, Children Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China.,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Medical University, Chongqing, China.,Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Yun-Peng Liao
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Fu-Shu Li
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Ying Hu
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Qin Li
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Yan Ma
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Han Wang
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Ya Zhou
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Bai-Cheng He
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China.,Key Laboratory of Biochemistry and Molecular Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Yu-Xi Su
- Department of Orthopedic, Children Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China.,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Medical University, Chongqing, China
| |
Collapse
|
11
|
Boyan BD, Olivares-Navarrete R, Berger MB, Hyzy SL, Schwartz Z. Role of Wnt11 during Osteogenic Differentiation of Human Mesenchymal Stem Cells on Microstructured Titanium Surfaces. Sci Rep 2018; 8:8588. [PMID: 29872092 PMCID: PMC5988747 DOI: 10.1038/s41598-018-26901-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 05/18/2018] [Indexed: 01/09/2023] Open
Abstract
Successful osseointegration of an endosseous implant involves migration and differentiation of mesenchymal stem cells (MSCs) on the implant surface. Micro-structured, hydrophilic titanium surfaces direct MSCs to undergo osteoblastic differentiation in vitro, in the absence of media additives commonly used in cultures grown on tissue culture polystyrene (TCPS). This process involves non-canonical Wnt5a, in contrast to canonical Wnt3a typically credited with osteoblastic differentiation on TCPS. Wnt proteins have been implicated in morphological development and tissue patterning, suggesting that additional Wnts may participate. Here, we demonstrate that Wnt11 is a mediator of osteoblast commitment of MSCs, and increases in a surface-roughness dependent manner. Experiments using cells silenced for Wnt11 indicate that cross-talk between Wnt5a and Wnt11 occurs. Wnt11 potentially acts upstream to Wnt5a, increasing Wnt5a expression and factors associated with osteogenesis. Thus, Wnt11 contributes to peri-implant bone formation distal to the implant surface through a heavily regulated signaling cascade of autocrine/paracrine proteins.
Collapse
Affiliation(s)
- Barbara D Boyan
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA. .,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Michael B Berger
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Sharon L Hyzy
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Zvi Schwartz
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA.,Department of Periodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, 78229, USA
| |
Collapse
|
12
|
Affiliation(s)
- Isabella Albanese
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Kashif Khan
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Bianca Barratt
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Hamood Al-Kindi
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Adel Schwertani
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| |
Collapse
|
13
|
Majumder S, Thieme K, Batchu SN, Alghamdi TA, Bowskill BB, Kabir MG, Liu Y, Advani SL, White KE, Geldenhuys L, Tennankore KK, Poyah P, Siddiqi FS, Advani A. Shifts in podocyte histone H3K27me3 regulate mouse and human glomerular disease. J Clin Invest 2017; 128:483-499. [PMID: 29227285 DOI: 10.1172/jci95946] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 10/31/2017] [Indexed: 01/09/2023] Open
Abstract
Histone protein modifications control fate determination during normal development and dedifferentiation during disease. Here, we set out to determine the extent to which dynamic changes to histones affect the differentiated phenotype of ordinarily quiescent adult glomerular podocytes. To do this, we examined the consequences of shifting the balance of the repressive histone H3 lysine 27 trimethylation (H3K27me3) mark in podocytes. Adriamycin nephrotoxicity and subtotal nephrectomy (SNx) studies indicated that deletion of the histone methylating enzyme EZH2 from podocytes decreased H3K27me3 levels and sensitized mice to glomerular disease. H3K27me3 was enriched at the promoter region of the Notch ligand Jag1 in podocytes, and derepression of Jag1 by EZH2 inhibition or knockdown facilitated podocyte dedifferentiation. Conversely, inhibition of the Jumonji C domain-containing demethylases Jmjd3 and UTX increased the H3K27me3 content of podocytes and attenuated glomerular disease in adriamycin nephrotoxicity, SNx, and diabetes. Podocytes in glomeruli from humans with focal segmental glomerulosclerosis or diabetic nephropathy exhibited diminished H3K27me3 and heightened UTX content. Analogous to human disease, inhibition of Jmjd3 and UTX abated nephropathy progression in mice with established glomerular injury and reduced H3K27me3 levels. Together, these findings indicate that ostensibly stable chromatin modifications can be dynamically regulated in quiescent cells and that epigenetic reprogramming can improve outcomes in glomerular disease by repressing the reactivation of developmental pathways.
Collapse
Affiliation(s)
- Syamantak Majumder
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Karina Thieme
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Sri N Batchu
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Tamadher A Alghamdi
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Bridgit B Bowskill
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - M Golam Kabir
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Youan Liu
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Suzanne L Advani
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Kathryn E White
- Electron Microscopy Research Services, Newcastle University, Newcastle upon Tyne, United Kingdom
| | | | | | - Penelope Poyah
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Ferhan S Siddiqi
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Andrew Advani
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
| |
Collapse
|
14
|
Moon JS, Ko HM, Park JI, Kim JH, Kim SH, Kim MS. Inhibition of human mesenchymal stem cell proliferation via Wnt signaling activation. J Cell Biochem 2017; 119:1670-1678. [PMID: 28776719 DOI: 10.1002/jcb.26326] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 08/02/2017] [Indexed: 01/09/2023]
Abstract
Human mesenchymal stem cells (hMSCs), characterized by rapid in vitro expandability and multi-differentiation potential, have been widely used in the clinical field of tissue engineering. Recent studies have shown that various signaling networks are involved in the growth and differentiation of hMSCs. Although Wnts and their downstream signaling components have been implicated in the regulation of hMSCs, the role of Wnt signaling in hMSC self-renewal is still controversial. Here, it was observed that activation of endogenous canonical Wnt signaling with LiCl, which decreased β-catenin phosphorylation, leads to a decrease in hMSC proliferation. The fact that this growth arrest is not linked to apoptosis was verified by annexin V-FITC/propidium iodide assay. It was associated with sealing off of the cells in the G1 phase of the cell cycle accompanied by changes in expression of cell cycle-associated genes such as cyclin A and D. In addition, activation of Wnt signaling during hMSC proliferation seemed to reduce their clonogenic potential. On the contrary, Wnt signaling activation during hMSC proliferation had little effect on the osteogenic differentiation capability of cells. These findings show that canonical Wnt signaling is a critical regulator of hMSC proliferation and clonogenicity.
Collapse
Affiliation(s)
| | - Hyun-Mi Ko
- Department of Microbiology, College of Medicine, Seonam University, Namwon, Korea
| | - Ji-Il Park
- Department of Dental Hygiene, Gwangju Health College, Gwangju, Korea
| | - Jae-Hyung Kim
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Sun-Hun Kim
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Min-Seok Kim
- Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea
| |
Collapse
|
15
|
Hussain M, Xu C, Lu M, Wu X, Tang L, Wu X. Wnt/β-catenin signaling links embryonic lung development and asthmatic airway remodeling. Biochim Biophys Acta Mol Basis Dis 2017; 1863:3226-3242. [PMID: 28866134 DOI: 10.1016/j.bbadis.2017.08.031] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/10/2017] [Accepted: 08/29/2017] [Indexed: 12/23/2022]
Abstract
Embryonic lung development requires reciprocal endodermal-mesodermal interactions; mediated by various signaling proteins. Wnt/β-catenin is a signaling protein that exhibits the pivotal role in lung development, injury and repair while aberrant expression of Wnt/β-catenin signaling leads to asthmatic airway remodeling: characterized by hyperplasia and hypertrophy of airway smooth muscle cells, alveolar and vascular damage goblet cells metaplasia, and deposition of extracellular matrix; resulting in decreased lung compliance and increased airway resistance. The substantial evidence suggests that Wnt/β-catenin signaling links embryonic lung development and asthmatic airway remodeling. Here, we summarized the recent advances related to the mechanistic role of Wnt/β-catenin signaling in lung development, consequences of aberrant expression or deletion of Wnt/β-catenin signaling in expansion and progression of asthmatic airway remodeling, and linking early-impaired pulmonary development and airway remodeling later in life. Finally, we emphasized all possible recent potential therapeutic significance and future prospectives, that are adaptable for therapeutic intervention to treat asthmatic airway remodeling.
Collapse
Affiliation(s)
- Musaddique Hussain
- Department of Pharmacology, School of Medicine, Zhejiang University, Hangzhou City 310058, China; The Key Respiratory Drug Research Laboratory of China Food and Drug Administration, School of Medicine, Zhejiang University, Hangzhou City 310058, China.
| | - Chengyun Xu
- Department of Pharmacology, School of Medicine, Zhejiang University, Hangzhou City 310058, China; The Key Respiratory Drug Research Laboratory of China Food and Drug Administration, School of Medicine, Zhejiang University, Hangzhou City 310058, China
| | - Meiping Lu
- Department of Respiratory Medicine, the Affiliated Children Hospital, School of Medicine, Zhejiang University, Hangzhou City 310006, China
| | - Xiling Wu
- Department of Respiratory Medicine, the Affiliated Children Hospital, School of Medicine, Zhejiang University, Hangzhou City 310006, China.
| | - Lanfang Tang
- Department of Respiratory Medicine, the Affiliated Children Hospital, School of Medicine, Zhejiang University, Hangzhou City 310006, China
| | - Ximei Wu
- Department of Pharmacology, School of Medicine, Zhejiang University, Hangzhou City 310058, China; The Key Respiratory Drug Research Laboratory of China Food and Drug Administration, School of Medicine, Zhejiang University, Hangzhou City 310058, China.
| |
Collapse
|
16
|
Xiao Q, Chen Z, Jin X, Mao R, Chen Z. The many postures of noncanonical Wnt signaling in development and diseases. Biomed Pharmacother 2017. [PMID: 28651237 DOI: 10.1016/j.biopha.2017.06.061] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Wnt signaling regulates many aspects of vertebrate development. Its dysregulation causes developmental defects and diseases including cancer. The signaling can be categorized in two pathways: canonical and noncanonical. Canonical pathway plays a key role in regulating proliferation and differentiation of cells whilst noncanonical Wnt signaling mainly controls cellular polarity and motility. During development, noncanonical Wnt signaling is required for tissue formation. Recent studies have shown that noncanonical Wnt signaling is involved in adult tissue development and cancer progression. In this review, we try to describe and discuss the mechanisms behind the biological effects of noncanonical Wnt signaling, diseases caused by its dysregulation, and implications in adult tissue development biology.
Collapse
Affiliation(s)
- Qian Xiao
- Senior Research Scientist, Department of Pharmacology, School of Medicine, Yale University, New Haven, USA
| | - Zhengxi Chen
- PhD, Department of Orthodontics, Ninth People's Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaozhuang Jin
- PhD, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Runyi Mao
- MDS student, Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Zhenqi Chen
- Professor, Department of Orthodontics, Ninth People's Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
17
|
Chen X, Han T, Fisher JE, Harrouk W, Tassinari MS, Merry GE, Sloper D, Fuscoe JC, Hansen DK, Inselman AL. Transcriptomics analysis of early embryonic stem cell differentiation under osteoblast culture conditions: Applications for detection of developmental toxicity. Reprod Toxicol 2017; 69:75-83. [PMID: 28189605 DOI: 10.1016/j.reprotox.2017.02.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/30/2016] [Accepted: 02/01/2017] [Indexed: 12/14/2022]
Abstract
The mouse embryonic stem cell test (mEST) is a promising in vitro assay for predicting developmental toxicity. In the current study, early differentiation of D3 mouse embryonic stem cells (mESCs) under osteoblast culture conditions and embryotoxicity of cadmium sulfate were examined. D3 mESCs were exposed to cadmium sulfate for 24, 48 or 72h, and whole genome transcriptional profiles were determined. The results indicate a track of differentiation was identified as mESCs differentiate. Biological processes that were associated with differentiation related genes included embryonic development and, specifically, skeletal system development. Cadmium sulfate inhibited mESC differentiation at all three time points. Functional pathway analysis indicated biological pathways affected included those related to skeletal development, renal and reproductive function. In summary, our results suggest that transcriptional profiles are a sensitive indicator of early mESC differentiation. Transcriptomics may improve the predictivity of the mEST by suggesting possible modes of action for tested chemicals.
Collapse
Affiliation(s)
- Xinrong Chen
- Division of Systems Biology, National Center for Toxicological Research, Food and Drug Administration, United States.
| | - Tao Han
- Division of Systems Biology, National Center for Toxicological Research, Food and Drug Administration, United States.
| | - J Edward Fisher
- Center for Drug Evaluation and Research, Food and Drug Administration, United States.
| | - Wafa Harrouk
- Center for Drug Evaluation and Research, Food and Drug Administration, United States.
| | - Melissa S Tassinari
- Center for Drug Evaluation and Research, Food and Drug Administration, United States.
| | - Gwenn E Merry
- Division of Systems Biology, National Center for Toxicological Research, Food and Drug Administration, United States.
| | - Daniel Sloper
- Division of Systems Biology, National Center for Toxicological Research, Food and Drug Administration, United States.
| | - James C Fuscoe
- Division of Systems Biology, National Center for Toxicological Research, Food and Drug Administration, United States.
| | - Deborah K Hansen
- Division of Systems Biology, National Center for Toxicological Research, Food and Drug Administration, United States.
| | - Amy L Inselman
- Division of Systems Biology, National Center for Toxicological Research, Food and Drug Administration, United States.
| |
Collapse
|
18
|
Kumawat K, Koopmans T, Menzen MH, Prins A, Smit M, Halayko AJ, Gosens R. Cooperative signaling by TGF-β1 and WNT-11 drives sm-α-actin expression in smooth muscle via Rho kinase-actin-MRTF-A signaling. Am J Physiol Lung Cell Mol Physiol 2016; 311:L529-37. [PMID: 27422998 DOI: 10.1152/ajplung.00387.2015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 07/07/2016] [Indexed: 02/06/2023] Open
Abstract
Airway smooth muscle (ASM) remodeling is a key feature in asthma and includes changes in smooth muscle-specific gene and protein expression. Despite this being a major contributor to asthma pathobiology, our understanding of the mechanisms governing ASM remodeling remains poor. Here, we studied the functional interaction between WNT-11 and TGF-β1 in ASM cells. We demonstrate that WNT-11 is preferentially expressed in contractile myocytes and is strongly upregulated following TGF-β1-induced myocyte maturation. Knock-down of WNT-11 attenuated TGF-β1-induced smooth muscle (sm)-α-actin expression in ASM cells. We demonstrate that TGF-β1-induced sm-α-actin expression is mediated by WNT-11 via RhoA activation and subsequent actin cytoskeletal remodeling, as pharmacological inhibition of either Rho kinase by Y27632 or actin remodeling by latrunculin A attenuated sm-α-actin induction. Moreover, we show that TGF-β1 regulates the nuclear expression of myocardin-related transcription factor-A (MRTF-A) in a Rho kinase-dependent fashion, which in turn mediates sm-α-actin expression. Finally, we demonstrate that TGF-β1-induced MRTF-A nuclear translocation is dependent on endogenous WNT-11. The present study thus demonstrates a WNT-11-dependent Rho kinase-actin-MRTF-A signaling axis that regulates the expression of sm-α-actin in ASM cells.
Collapse
Affiliation(s)
- Kuldeep Kumawat
- Department of Molecular Pharmacology, University of Groningen, Groningen, the Netherlands; Groningen Research Institute for Asthma and COPD, University of Groningen, the Netherlands; and
| | - Tim Koopmans
- Department of Molecular Pharmacology, University of Groningen, Groningen, the Netherlands; Groningen Research Institute for Asthma and COPD, University of Groningen, the Netherlands; and
| | - Mark H Menzen
- Department of Molecular Pharmacology, University of Groningen, Groningen, the Netherlands; Groningen Research Institute for Asthma and COPD, University of Groningen, the Netherlands; and
| | - Alita Prins
- Department of Molecular Pharmacology, University of Groningen, Groningen, the Netherlands
| | - Marieke Smit
- Department of Molecular Pharmacology, University of Groningen, Groningen, the Netherlands; Groningen Research Institute for Asthma and COPD, University of Groningen, the Netherlands; and
| | - Andrew J Halayko
- Departments of Physiology and Pathophysiology & Internal Medicine, University of Manitoba, Winnipeg, Canada
| | - Reinoud Gosens
- Department of Molecular Pharmacology, University of Groningen, Groningen, the Netherlands; Groningen Research Institute for Asthma and COPD, University of Groningen, the Netherlands; and
| |
Collapse
|
19
|
Wang H, He XQ, Jin T, Li Y, Fan XY, Wang Y, Xu YQ. Wnt11 plays an important role in the osteogenesis of human mesenchymal stem cells in a PHA/FN/ALG composite scaffold: possible treatment for infected bone defect. Stem Cell Res Ther 2016; 7:18. [PMID: 26818191 PMCID: PMC4729148 DOI: 10.1186/s13287-016-0277-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 12/31/2015] [Accepted: 01/06/2016] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Infected bone defect poses a great challenge for orthopedists because it is difficult to cure. Tissue-engineered bone based on the human mesenchymal stem cells (hMSCs), has currently taken a promising treatment protocol in clinical practice. In a previous study, a porous hydroxyapatite/fibronectin/alginate (PHA/FN/ALG) composite scaffold displayed favorable biological properties as a novel scaffold, which was considered better than single-material scaffolds. In addition, Wnt11 has been demonstrated to play an important role in the development of osteoblasts, but until recently, its role in the osteogenic differentiation of hMSCs in infectious environment remained unclear. METHODS In this study, we constructed a PHA/FN/ALG composite scaffold with layer-by-layer technology. Furthermore, we also constructed Wnt11-silenced (RNAi) and -overexpressing hMSCs by lentiviral transduction. The gene transduction efficacy was confirmed by quantitative PCR assay and Western blot analysis. Tissue-engineered bone was constructed with hMSCs and PHA/FN/ALG composite scaffolds, and then was implanted into an infected bone defect model for evaluating the osteogenic capacity by quantitative PCR, gross observation, micro-CT and histology analysis. RESULTS All those cells showed similar adhesion abilities and proliferation capacities in scaffolds. After tissue-engineered bone implantation, there were high levels of systemic inflammatory factors in vivo, which significantly declined three days after antibiotic therapy. One or two months after implantation, the results of osteogenic-related gene analyses, gross observation, micro-CT and histology consistently showed that the Wnt11 over-expression hMSC group displayed the strongest osteogenesis capacity, whereas the Wnt11-RNAi hMSC group displayed inferior osteogenesis capacity, when compared with the other cell-containing groups. However, the blank control group and the only composite scaffold without cell implantation group both showed extremely weak osteogenesis capacity. CONCLUSION Our results revealed that the Wnt11 gene plays an important role in hMSCs for enhancing the osteogenesis in an infectious environment.
Collapse
Affiliation(s)
- Hai Wang
- The Third Military Medical University, Chongqing, 400038, China.
- Department of Orthopaedics, Kunming General Hospital of Chengdu Military Command, 650032, Kunming, China.
- Institute of Traumatology and Orthopaedics of PLA, 650032, Kunming, China.
| | - Xiao-Qing He
- Department of Orthopaedics, Kunming General Hospital of Chengdu Military Command, 650032, Kunming, China.
- Institute of Traumatology and Orthopaedics of PLA, 650032, Kunming, China.
| | - Tao Jin
- Department of Orthopaedics, Kunming General Hospital of Chengdu Military Command, 650032, Kunming, China.
- Institute of Traumatology and Orthopaedics of PLA, 650032, Kunming, China.
| | - Yang Li
- Department of Orthopaedics, Kunming General Hospital of Chengdu Military Command, 650032, Kunming, China.
- Institute of Traumatology and Orthopaedics of PLA, 650032, Kunming, China.
| | - Xin-Yu Fan
- Department of Orthopaedics, Kunming General Hospital of Chengdu Military Command, 650032, Kunming, China.
- Institute of Traumatology and Orthopaedics of PLA, 650032, Kunming, China.
| | - Yi Wang
- Department of Orthopaedics, Kunming General Hospital of Chengdu Military Command, 650032, Kunming, China.
- Institute of Traumatology and Orthopaedics of PLA, 650032, Kunming, China.
| | - Yong-Qing Xu
- Department of Orthopaedics, Kunming General Hospital of Chengdu Military Command, 650032, Kunming, China.
- Institute of Traumatology and Orthopaedics of PLA, 650032, Kunming, China.
| |
Collapse
|
20
|
|
21
|
Du HF, Ou LP, Lv CK, Yang X, Song XD, Fan YR, Wu XH, Luo CL. Expression of hepaCAM inhibits bladder cancer cell proliferation via a Wnt/β-catenin-dependent pathway in vitro and in vivo. Cancer Biol Ther 2015; 16:1502-13. [PMID: 26192362 DOI: 10.1080/15384047.2015.1071732] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
We previously established that hepatocyte cell adhesion molecule (hepaCAM), a typical structure of immunoglobulin (Ig)-like adhesion molecules, inhibited the proliferation and the progression of cultured human bladder cancer cells. As increasing evidence reveals that aberrant activation of canonical Wnt pathway is involved in the pathogenesis of bladder cancer, and β-catenin serves as a pivotal molecule of Wnt pathway. Then, we explored whether the anti-proliferation effect of hepaCAM was associated with Wnt/β-catenin pathway in human bladder cancer cells. The negative correlation between hepaCAM and β-catenin in transitional cell carcinoma of bladder (TCCB) was found. Follow by, studied the effect of hepaCAM on the key elements of Wnt pathway. Here, Our researches showed that hepaCAM played a central role in modulating the Wnt/β-catenin signaling pathway by interfering nuclear protein levels of β-catenin, leading to down-regulate transcriptional activity of LEF/TCF and its target genes c-Myc and cyclinD1. Mechanistically, we demonstrated that hepaCAM-activated GSK3β led to elevate the phosphorylation of β-catenin, contributing to the aberrant translocation of β-catenin. In addition, Anti-proliferation and associated molecular mechanisms of hepaCAM were demonstrated by using vivo experiment. In conclusion, our reports uncover that expression of hepaCAM suppresses the proliferation of bladder cancer cells through a Wnt/β-catenin-dependent signaling pathway in vitro and in vivo.
Collapse
Affiliation(s)
- Hong-Fei Du
- a Department of Clinical Laboratory ; The First Affiliated Hospital of Chengdu Medical College ; Chengdu , PR China
| | - Li-Ping Ou
- b The Key Laboratory of Diagnostics Medicine designated by the Ministry of Education ; Chongqing Medical University ; Chongqing , PR China
| | - Chang-Kun Lv
- c Department of Laboratory Medicine ; Shang qiu Medical College ; Shang qiu , PR China
| | - Xue Yang
- b The Key Laboratory of Diagnostics Medicine designated by the Ministry of Education ; Chongqing Medical University ; Chongqing , PR China
| | - Xue-Dong Song
- b The Key Laboratory of Diagnostics Medicine designated by the Ministry of Education ; Chongqing Medical University ; Chongqing , PR China
| | - Yan-Ru Fan
- b The Key Laboratory of Diagnostics Medicine designated by the Ministry of Education ; Chongqing Medical University ; Chongqing , PR China
| | - Xiao-Hou Wu
- d Department of Urology , The First Affiliated Hospital of Chongqing Medical University ; Chongqing , PR China
| | - Chun-Li Luo
- b The Key Laboratory of Diagnostics Medicine designated by the Ministry of Education ; Chongqing Medical University ; Chongqing , PR China
| |
Collapse
|
22
|
Signaling Control of Differentiation of Embryonic Stem Cells toward Mesendoderm. J Mol Biol 2015; 428:1409-22. [PMID: 26119455 DOI: 10.1016/j.jmb.2015.06.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/12/2015] [Accepted: 06/17/2015] [Indexed: 01/29/2023]
Abstract
Mesendoderm (ME) refers to the primitive streak in mammalian embryos, which has the ability to further differentiate into mesoderm and endoderm. A better understanding on the regulatory networks of ME differentiation of embryonic stem (ES) cells would provide important insights on early embryo patterning and a possible guidance for ES applications in regenerative medicine. Studies on developmental biology and embryology have offered a great deal of knowledge about key signaling pathways involved in primitive streak formation. Recently, various chemically defined recipes have been formulated to induce differentiation of ES cells toward ME in vitro, which greatly facilitate the elucidation of the regulatory mechanisms of different signals involved in ME specification. Among the extrinsic signals, transforming growth factor-β/Activin signaling and Wnt signaling have been shown to be the most critical ones. On another side, intrinsic epigenetic regulation has been indicated to be important in ME determination. In this review, we summarize the current understanding on the extrinsic and intrinsic regulations of ES cells-to-ME differentiation and the crosstalk among them, aiming to get a general overview on ME specification and primitive streak formation.
Collapse
|
23
|
Volckaert T, De Langhe SP. Wnt and FGF mediated epithelial-mesenchymal crosstalk during lung development. Dev Dyn 2014; 244:342-66. [PMID: 25470458 DOI: 10.1002/dvdy.24234] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/20/2014] [Accepted: 11/26/2014] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The adaptation to terrestrial life required the development of an organ capable of efficient air-blood gas exchange. To meet the metabolic load of cellular respiration, the mammalian respiratory system has evolved from a relatively simple structure, similar to the two-tube amphibian lung, to a highly complex tree-like system of branched epithelial airways connected to a vast network of gas exchanging units called alveoli. The development of such an elaborate organ in a relatively short time window is therefore an extraordinary feat and involves an intimate crosstalk between mesodermal and endodermal cell lineages. RESULTS This review describes the molecular processes governing lung development with an emphasis on the current knowledge on the role of Wnt and FGF signaling in lung epithelial differentiation. CONCLUSIONS The Wnt and FGF signaling pathways are crucial for the dynamic and reciprocal communication between epithelium and mesenchyme during lung development. In addition, some of this developmental crosstalk is reemployed in the adult lung after injury to drive regeneration, and may, when aberrantly or chronically activated, result in chronic lung diseases. Novel insights into how the Wnt and FGF pathways interact and are integrated into a complex gene regulatory network will not only provide us with essential information about how the lung regenerates itself, but also enhance our understanding of the pathogenesis of chronic lung diseases, as well as improve the controlled differentiation of lung epithelium from pluripotent stem cells.
Collapse
Affiliation(s)
- Thomas Volckaert
- Department of Pediatrics, Division of Cell Biology, National Jewish Health, Denver, Colorado; The Inflammation Research Center, Unit of Molecular Signal Transduction in Inflammation, VIB, Technologiepark 927, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Ghent, Belgium
| | | |
Collapse
|
24
|
Wnt4 signaling prevents skeletal aging and inflammation by inhibiting nuclear factor-κB. Nat Med 2014; 20:1009-17. [PMID: 25108526 PMCID: PMC4159424 DOI: 10.1038/nm.3586] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 05/07/2014] [Indexed: 12/13/2022]
Abstract
Aging-related bone loss and osteoporosis affect millions of patients worldwide. Chronic inflammation associated with aging and arthritis promotes bone resorption and impairs bone formation. Here we show that Wnt4 attenuated bone loss in osteoporosis and skeletal aging by inhibiting nuclear factor-kappa B (NF-κB) via non-canonical Wnt signaling. Transgenic mice expressing Wnt4 from osteoblasts were significantly protected from bone loss and chronic inflammation induced by ovariectomy, tumor necrosis factor or natural aging. In addition to promoting bone formation, Wnt4 could inhibit osteoclast formation and bone resorption. Mechanistically, Wnt4 inhibited transforming growth factor beta-activated kinase 1-mediated NF-κB activation in macrophages and osteoclast precursors independent of β-catenin. Moreover, recombinant Wnt4 proteins were able to alleviate osteoporotic bone loss and inflammation by inhibiting NF-κB in vivo. Taken together, our results suggest that Wnt4 might be used as a therapeutic agent for treating osteoporosis by attenuating NF-κB.
Collapse
|
25
|
Halt K, Vainio S. Coordination of kidney organogenesis by Wnt signaling. Pediatr Nephrol 2014; 29:737-44. [PMID: 24445433 PMCID: PMC3928513 DOI: 10.1007/s00467-013-2733-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 10/25/2013] [Accepted: 12/12/2013] [Indexed: 11/28/2022]
Abstract
Several Wnt proteins are expressed in the embryonic kidney during various stages of development. Gene knockout models and ex vivo studies have provided strong evidence that Wnt-mediated signals are essential in renal ontogeny. Perhaps the most critical factors, Wnt9b and Wnt4, function during the early phase when the cap mesenchyme is induced to undergo morphogenesis into a nephron. Wnt11 controls early ureteric bud branching and contributes to the final kidney size. In addition to its inductive role, later on Wnt9b plays a significant role in the convergent extension of the tubular epithelial cells, while Wnt4 signaling controls smooth muscle cell fates in the medulla. Wnt7b has a specific function together with its likely antagonist Dkk1 in controlling the morphogenesis of the renal medulla. The signal-transduction mechanisms of the Wnts in kidney ontogeny have not been resolved, but studies characterizing the downstream signaling pathways are emerging. Aberrant Wnt signaling may lead to kidney diseases ranging from fatal kidney agenesis to more benign phenotypes. Wnt-mediated signaling regulates several critical aspects of kidney development from the early inductive stages to later steps of tubular epithelial maturation.
Collapse
Affiliation(s)
- Kimmo Halt
- The Centre of Excellence in Cell-Extracellular Matrix Research, Oulu, Finland
- Biocenter Oulu, Oulu, Finland
- Laboratory of Developmental Biology, Department of Medical Biochemistry and Molecular Biology, Institute of Biomedicine, University of Oulu, PO Box 5000, 90014 Oulu, Finland
| | - Seppo Vainio
- The Centre of Excellence in Cell-Extracellular Matrix Research, Oulu, Finland
- Biocenter Oulu, Oulu, Finland
- Laboratory of Developmental Biology, Department of Medical Biochemistry and Molecular Biology, Institute of Biomedicine, University of Oulu, PO Box 5000, 90014 Oulu, Finland
| |
Collapse
|
26
|
Cui J, Wang H, Liu S, Zhu L, Qiu X, Jiang Z, Wang X, Liu Z. SNP discovery from transcriptome of the swimbladder of Takifugu rubripes. PLoS One 2014; 9:e92502. [PMID: 24651578 PMCID: PMC3961390 DOI: 10.1371/journal.pone.0092502] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 02/23/2014] [Indexed: 12/24/2022] Open
Abstract
Single nucleotide polymorphisms (SNPs) have become the marker of choice for genome-wide association studies in many species. High-throughput sequencing of RNA was developed primarily to analyze global gene expression, while it is an efficient way to discover SNPs from the expressed genes. In this study, we conducted transcriptome sequencing of the swimbladder of Takifugu rubripes using Illumina HiSeq2000 platform to identify gene-associated SNPs in the swimbladder. A total of 30,312,181 unique-mapped-reads were obtained from 44,736,850 raw reads. A total of 62,270 putative SNPs were discovered, which were located in 11,306 expressed genes and 2,246 scaffolds. The average minor allele frequency (MAF) of the SNPs was 0.26. GO and KEGG pathway analysis were conducted to analyze the genes containing SNPs. Validation of selected SNPs revealed that 54% of SNPs (26/48) were true SNPs. The results suggest that RNA-Seq is an efficient and cost-effective approach to discover gene-associated SNPs. In this study, a large number of SNPs were identified and these data will be useful resources for population genetic study, evolution analysis, resource assessment, genetic linkage analysis and genome-wide association studies.
Collapse
Affiliation(s)
- Jun Cui
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, China
| | - Hongdi Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, China
| | - Shikai Liu
- The Fish Molecular Genetics and Biotechnology Laboratory, Aquatic Genomics Unit, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Auburn University, Auburn, Alabama, United States of America
| | - Lifu Zhu
- School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, China
| | - Xuemei Qiu
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, China
| | - Zhiqiang Jiang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, China
- * E-mail: (ZJ); (XW); (ZL)
| | - Xiuli Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, China
- * E-mail: (ZJ); (XW); (ZL)
| | - Zhanjiang Liu
- The Fish Molecular Genetics and Biotechnology Laboratory, Aquatic Genomics Unit, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Auburn University, Auburn, Alabama, United States of America
- * E-mail: (ZJ); (XW); (ZL)
| |
Collapse
|
27
|
Van Camp JK, Beckers S, Zegers D, Van Hul W. Wnt Signaling and the Control of Human Stem Cell Fate. Stem Cell Rev Rep 2013; 10:207-29. [DOI: 10.1007/s12015-013-9486-8] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
28
|
Jiang M, Ku WY, Fu J, Offermanns S, Hsu W, Que J. Gpr177 regulates pulmonary vasculature development. Development 2013; 140:3589-94. [PMID: 23884445 DOI: 10.1242/dev.095471] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Establishment of the functional pulmonary vasculature requires intimate interaction between the epithelium and mesenchyme. Previous genetic studies have led to inconsistent conclusions about the contribution of epithelial Wnts to pulmonary vasculature development. This discrepancy is possibly due to the functional redundancy among different Wnts. Here, we use Shh-Cre to conditionally delete Gpr177 (the mouse ortholog of Drosophila Wntless, Wls), a chaperon protein important for the sorting and secretion of Wnt proteins. Deletion of epithelial Gpr177 reduces Wnt signaling activity in both the epithelium and mesenchyme, resulting in severe hemorrhage and abnormal vasculature, accompanied by branching defects and abnormal epithelial differentiation. We then used multiple mouse models to demonstrate that Wnt/β-catenin signaling is not only required for the proliferation and differentiation of mesenchyme, but also is important for the maintenance of smooth muscle cells through the regulation of the transcription factor Kruppel-like factor 2 (Klf2). Together, our studies define a novel mechanism by which epithelial Wnts regulate the normal development and maintenance of pulmonary vasculature. These findings provide insight into the pathobiology of congenital lung diseases, such as alveolar capillary dysplasia (ACD), that have abnormal alveolar development and dysmorphic pulmonary vasculature.
Collapse
Affiliation(s)
- Ming Jiang
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY 14642, USA
| | | | | | | | | | | |
Collapse
|
29
|
Li Y, Zheng Y, Izumi K, Ishiguro H, Ye B, Li F, Miyamoto H. Androgen activates β-catenin signaling in bladder cancer cells. Endocr Relat Cancer 2013; 20:293-304. [PMID: 23447569 DOI: 10.1530/erc-12-0328] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Androgen receptor (AR) signals have been implicated in bladder carcinogenesis and tumor progression. Activation of Wnt/β-catenin signaling has also been reported to correlate with bladder cancer progression and poor patients' outcomes. However, cross talk between AR and β-catenin pathways in bladder cancer remains uncharacterized. In radical cystectomy specimens, we immunohistochemically confirmed aberrant expression of β-catenin especially in aggressive tumors. There was a strong association between nuclear expressions of AR and β-catenin in bladder tumors (P=0.0215). Kaplan-Meier and log-rank tests further revealed that reduced membranous β-catenin expression (P=0.0276), nuclear β-catenin expression (P=0.0802), and co-expression of nuclear AR and β-catenin (P=0.0043) correlated with tumor progression after cystectomy. We then assessed the effects of androgen on β-catenin in AR-positive and AR-negative bladder cancer cell lines. A synthetic androgen R1881 increased the expression of an active form of β-catenin and its downstream target c-myc only in AR-positive lines. R1881 also enhanced the activity of β-catenin-mediated transcription, which was abolished by an AR antagonist hydroxyflutamide. Using western blotting and immunofluorescence, R1881 was found to induce nuclear translocation of β-catenin when co-localized with AR. Finally, co-immunoprecipitation revealed androgen-induced associations of AR with β-catenin or T-cell factor (TCF) in bladder cancer cells. Thus, it was likely that androgen was able to activate β-catenin signaling through the AR pathway in bladder cancer cells. Our results also suggest that activation of β-catenin signaling possibly via formation of AR/β-catenin/TCF complex contributes to the progression of bladder cancer, which may enhance the feasibility of androgen deprivation as a potential therapeutic approach.
Collapse
Affiliation(s)
- Yi Li
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York 14642, USA
| | | | | | | | | | | | | |
Collapse
|
30
|
Tai G, Hohenstein P, Davies JA. FAK-Src signalling is important to renal collecting duct morphogenesis: discovery using a hierarchical screening technique. Biol Open 2013; 2:416-23. [PMID: 23616926 PMCID: PMC3625870 DOI: 10.1242/bio.20133780] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 01/21/2013] [Indexed: 01/08/2023] Open
Abstract
This report describes a hierarchical screening technique for identification of pathways that control the morphogenesis of the renal collecting duct system. The multi-step screen involves a first round using a 2-dimensional, cell-line-based scrape-healing assay, then a second round using a 3-dimensional tubulogenesis assay; both of these rounds use new cell lines described in this report. The final stage is ex vivo organ culture. We demonstrate the utility of the screen by using it to identify the FAK–Src-pathway signalling as being important for collecting duct development, specifically for the cell proliferation on which this development depends.
Collapse
Affiliation(s)
- Guangping Tai
- Centre for Integrative Physiology, University of Edinburgh , Edinburgh EH8 9XD , UK
| | | | | |
Collapse
|
31
|
Mezentseva NV, Yang J, Kaur K, Iaffaldano G, Rémond MC, Eisenberg CA, Eisenberg LM. The histone methyltransferase inhibitor BIX01294 enhances the cardiac potential of bone marrow cells. Stem Cells Dev 2012; 22:654-67. [PMID: 22994322 DOI: 10.1089/scd.2012.0181] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Bone marrow (BM) has long been considered a potential stem cell source for cardiac repair due to its abundance and accessibility. Although previous investigations have generated cardiomyocytes from BM, yields have been low, and far less than produced from ES or induced pluripotent stem cells (iPSCs). Since differentiation of pluripotent cells is difficult to control, we investigated whether BM cardiac competency could be enhanced without making cells pluripotent. From screens of various molecules that have been shown to assist iPSC production or maintain the ES cell phenotype, we identified the G9a histone methyltransferase inhibitor BIX01294 as a potential reprogramming agent for converting BM cells to a cardiac-competent phenotype. BM cells exposed to BIX01294 displayed significantly elevated expression of brachyury, Mesp1, and islet1, which are genes associated with embryonic cardiac progenitors. In contrast, BIX01294 treatment minimally affected ectodermal, endodermal, and pluripotency gene expression by BM cells. Expression of cardiac-associated genes Nkx2.5, GATA4, Hand1, Hand2, Tbx5, myocardin, and titin was enhanced 114, 76, 276, 46, 635, 123, and 5-fold in response to the cardiogenic stimulator Wnt11 when BM cells were pretreated with BIX01294. Immunofluorescent analysis demonstrated that BIX01294 exposure allowed for the subsequent display of various muscle proteins within the cells. The effect of BIX01294 on the BM cell phenotype and differentiation potential corresponded to an overall decrease in methylation of histone H3 at lysine9, which is the primary target of G9a histone methyltransferase. In summary, these data suggest that BIX01294 inhibition of chromatin methylation reprograms BM cells to a cardiac-competent progenitor phenotype.
Collapse
Affiliation(s)
- Nadejda V Mezentseva
- New York Medical College/Westchester Medical Center Stem Cell Laboratory, Department of Physiology, New York Medical College, Valhalla, New York, USA
| | | | | | | | | | | | | |
Collapse
|
32
|
Draaken M, Prins W, Zeidler C, Hilger A, Mughal SS, Latus J, Boemers TM, Schmidt D, Schmiedeke E, Spychalski N, Bartels E, Nöthen MM, Reutter H, Ludwig M. Involvement of the WNT and FGF signaling pathways in non-isolated anorectal malformations: sequencing analysis of WNT3A, WNT5A, WNT11, DACT1, FGF10, FGFR2 and the T gene. Int J Mol Med 2012; 30:1459-64. [PMID: 22961180 DOI: 10.3892/ijmm.2012.1124] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Accepted: 08/07/2012] [Indexed: 02/07/2023] Open
Abstract
Anorectal malformations (ARMs) comprise a broad spectrum of anomalies, including anal atresia, congenital anal fistula and persistence of the cloaca. Research suggests that genetic factors play an important role in ARM development. However, few genetic variants have been identified. Embryogenesis is orchestrated by crosstalk of the wingless-type MMTV integration site family (WNT) and fibroblast growth factor (FGF) signaling pathways in a process that involves several intracellular cascades. Studies in mice have implicated several genes from these pathways in the etiology of ARMs. We performed sequencing analysis of seven of these previously reported genes in 78 patients with ARMs occurring within the context of at least one additional congenital anomaly. No associations were identified with variants in WNT3A, WNT5A, WNT11, DACT1, FGF10 or the T gene. In the FGFR2 gene, three novel heterozygous nucleotide substitutions were identified. Further investigations, including the study of family members, revealed that these variants were not causally related to the phenotype in the present ARM cohort. Mutations in the seven investigated genes may nonetheless be a cause of ARMs in rare cases. However, further studies should consider genes encoding other proteins in the WNT/FGF signaling pathways as possible candidates.
Collapse
Affiliation(s)
- Markus Draaken
- Institute of Human Genetics, University Hospital of Bonn, D-53127 Bonn, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Maina JN. Comparative molecular developmental aspects of the mammalian- and the avian lungs, and the insectan tracheal system by branching morphogenesis: recent advances and future directions. Front Zool 2012; 9:16. [PMID: 22871018 PMCID: PMC3502106 DOI: 10.1186/1742-9994-9-16] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 06/18/2012] [Indexed: 02/07/2023] Open
Abstract
Gas exchangers fundamentally form by branching morphogenesis (BM), a mechanistically profoundly complex process which derives from coherent expression and regulation of multiple genes that direct cell-to-cell interactions, differentiation, and movements by signaling of various molecular morphogenetic cues at specific times and particular places in the developing organ. Coordinated expression of growth-instructing factors determines sizes and sites where bifurcation occurs, by how much a part elongates before it divides, and the angle at which branching occurs. BM is essentially induced by dualities of factors where through feedback- or feed forward loops agonists/antagonists are activated or repressed. The intricate transactions between the development orchestrating molecular factors determine the ultimate phenotype. From the primeval time when the transformation of unicellular organisms to multicellular ones occurred by systematic accretion of cells, BM has been perpetually conserved. Canonical signalling, transcriptional pathways, and other instructive molecular factors are commonly employed within and across species, tissues, and stages of development. While much still remain to be elucidated and some of what has been reported corroborated and reconciled with rest of existing data, notable progress has in recent times been made in understanding the mechanism of BM. By identifying and characterizing the morphogenetic drivers, and markers and their regulatory dynamics, the elemental underpinnings of BM have been more precisely explained. Broadening these insights will allow more effective diagnostic and therapeutic interventions of developmental abnormalities and pathologies in pre- and postnatal lungs. Conservation of the molecular factors which are involved in the development of the lung (and other branched organs) is a classic example of nature's astuteness in economically utilizing finite resources. Once purposefully formed, well-tested and tried ways and means are adopted, preserved, and widely used to engineer the most optimal phenotypes. The material and time costs of developing utterly new instruments and routines with every drastic biological change (e.g. adaptation and speciation) are circumvented. This should assure the best possible structures and therefore functions, ensuring survival and evolutionary success.
Collapse
Affiliation(s)
- John N Maina
- Department of Zoology, University of Johannesburg, Auckland Park 2006, P,O, Box 524, Johannesburg, South Africa.
| |
Collapse
|
34
|
Ornitz DM, Yin Y. Signaling networks regulating development of the lower respiratory tract. Cold Spring Harb Perspect Biol 2012; 4:4/5/a008318. [PMID: 22550231 DOI: 10.1101/cshperspect.a008318] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The lungs serve the primary function of air-blood gas exchange in all mammals and in terrestrial vertebrates. Efficient gas exchange requires a large surface area that provides intimate contact between the atmosphere and the circulatory system. To achieve this, the lung contains a branched conducting system (the bronchial tree) and specialized air-blood gas exchange units (the alveoli). The conducting system brings air from the external environment to the alveoli and functions to protect the lung from debris that could obstruct airways, from entry of pathogens, and from excessive loss of fluids. The distal lung enables efficient exchange of gas between the alveoli and the conducting system and between the alveoli and the circulatory system. In this article, we highlight developmental and physiological mechanisms that specify, pattern, and regulate morphogenesis of this complex and essential organ. Recent advances have begun to define molecular mechanisms that control many of the important processes required for lung organogenesis; however, many questions remain. A deeper understanding of these molecular mechanisms will aid in the diagnosis and treatment of congenital lung disease and in the development of strategies to enhance the reparative response of the lung to injury and eventually permit regeneration of functional lung tissue.
Collapse
Affiliation(s)
- David M Ornitz
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
| | | |
Collapse
|
35
|
Simon DP, Hammer GD. Adrenocortical stem and progenitor cells: implications for adrenocortical carcinoma. Mol Cell Endocrinol 2012; 351:2-11. [PMID: 22266195 PMCID: PMC3288146 DOI: 10.1016/j.mce.2011.12.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 11/02/2011] [Accepted: 12/07/2011] [Indexed: 12/29/2022]
Abstract
The continuous centripetal repopulation of the adrenal cortex is consistent with a population of cells endowed with the stem/progenitor cell properties of self-renewal and pluripotency. The adrenocortical capsule and underlying undifferentiated cortical cells are emerging as critical components of the stem/progenitor cell niche. Recent genetic analysis has identified various signaling pathways including Sonic Hedgehog (Shh) and Wnt as crucial mediators of adrenocortical lineage and organ homeostasis. Shh expression is restricted to the peripheral cortical cells that express a paucity of steroidogenic genes but give rise to the underlying differentiated cells of the cortex. Wnt/β-catenin signaling maintains the undifferentiated state and adrenal fate of adrenocortical stem/progenitor cells, in part through induction of its target genes Dax1 and inhibin-α, respectively. The pathogenesis of ACC, a rare yet highly aggressive cancer with an extremely poor prognosis, is slowly emerging from studies of the stem/progenitor cells of the adrenal cortex coupled with the genetics of familial syndromes in which ACC occurs. The frequent observation of constitutive activation of Wnt signaling due to loss-of-function mutations in the tumor suppressor gene APC or gain-of-function mutation in β-catenin in both adenomas and carcinomas, suggests perhaps that the Wnt pathway serves an early or initiating insult in the oncogenic process. Loss of p53 might be predicted to cooperate with additional genetic insults such as IGF2 as both are the most common genetic abnormalities in malignant versus benign adrenocortical neoplasms. It is unclear whether other factors such as Pod1 and Pref1, which are implicated in stem/progenitor cell biology in the adrenal and/or other organs, are also implicated in the etiology of adrenocortical carcinoma. The rarity and heterogeneous presentation of ACC makes it difficult to identify the cellular origin and the molecular progression to cancer. A more complete understanding of adrenocortical stem/progenitor cell biology will invariably aid in characterization of the molecular details of ACC tumorigenesis and may offer new options for therapeutic intervention.
Collapse
Affiliation(s)
- Derek P. Simon
- Cellular and Molecular Biology Training Program, Ann Arbor, MI 48109
| | - Gary D. Hammer
- Cellular and Molecular Biology Training Program, Ann Arbor, MI 48109
- Endocrine Oncology Program – Comprehensive Cancer Center 1528 BSRB 109 Zina Pitcher, Ann Arbor, MI 48109
| |
Collapse
|
36
|
Berthon A, Martinez A, Bertherat J, Val P. Wnt/β-catenin signalling in adrenal physiology and tumour development. Mol Cell Endocrinol 2012; 351:87-95. [PMID: 21930188 DOI: 10.1016/j.mce.2011.09.009] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 08/16/2011] [Accepted: 09/05/2011] [Indexed: 01/12/2023]
Abstract
Wnt/β-catenin signalling plays essential roles during embryonic development and in adult tissue homeostasis. Canonical signalling through Wnt secreted ligands relies on the control of β-catenin cytoplasmic accumulation and translocation to the nucleus. In this compartment, β-catenin serves as a transcription coactivator for transcription factors such as Lef/Tcf or some nuclear receptors. Constitutive Wnt signalling resulting from inactivation of inhibitors of the pathway or from activating mutations in β-catenin, triggers tumour development in a number of tissues. Analysis of patients' samples and genetically engineered mouse models has shown that Wnt signalling was involved in adrenal development and tumourigenesis. This review will summarise all these recent findings and will focus on some of the mechanisms that may lead to aberrant accumulation of β-catenin in adrenocortical tumours.
Collapse
Affiliation(s)
- Annabel Berthon
- CNRS UMR6247, Génétique Reproduction et Développement, Clermont Université, Aubière, France
| | | | | | | |
Collapse
|
37
|
Abstract
Genetic studies of Wnt11 have revealed many insights into the roles and regulation of Wnt11, particularly during development. New tools to study Wnt11 have recently become available, making it timely to review the literature regarding this unique Wnt family member. In this study, we focus on mammalian Wnt11, describing its main sites of expression during development, and how the Wnt11 gene is regulated. We highlight an emerging theme in which canonical Wnt signals regulate Wnt11 expression through transcription factors in addition to, or other than, Tcf/LEF family members. We also discuss the frizzled family and other receptors that bind to Wnt11, the intracellular kinases and small GTPases that act downstream of Wnt11, and the effects of Wnt11 on Wnt/β-catenin signalling. Finally, we elaborate on the relevance of Wnt11 to human cancer, where it appears to be important both for proliferation and/or survival during normal differentiation and for migration/invasion.
Collapse
Affiliation(s)
- P Uysal-Onganer
- Department of Surgery and Cancer, Imperial College London, UK
| | | |
Collapse
|
38
|
Yates LL, Dean CH. Planar polarity: A new player in both lung development and disease. Organogenesis 2011; 7:209-16. [PMID: 22030785 DOI: 10.4161/org.7.3.18462] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The clinical burden of both adult and neonatal lung disease worldwide is substantial; in the UK alone, respiratory disease kills one in four people. It is increasingly recognized that genes and pathways that regulate lung development, may be aberrantly activated in disease and/or reactivated as part of the lungs' intrinsic repair mechanisms. Investigating the genes and signaling pathways that regulate lung growth has led to significant insights into the pathogenesis of congenital and adult lung disease. Recently, the planar cell polarity (PCP) pathway has been shown to be required for normal lung development, and data suggests that this signaling pathway is also involved in the pathogenesis of some lung diseases. In this review, we summarize current evidence indicating that the PCP pathway is required for both lung development and disease.
Collapse
Affiliation(s)
- Laura L Yates
- Peter MacCallum Cancer Institute, Melbourne, Australia
| | | |
Collapse
|
39
|
Wnt signaling is required for early development of zebrafish swimbladder. PLoS One 2011; 6:e18431. [PMID: 21479192 PMCID: PMC3068184 DOI: 10.1371/journal.pone.0018431] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Accepted: 03/07/2011] [Indexed: 01/15/2023] Open
Abstract
Background Wnt signaling plays critical roles in mammalian lung development. However, Wnt signaling in the development of the zebrafish swimbladder, which is considered as a counterpart of mammalian lungs, have not been explored. To investigate the potential conservation of signaling events in early development of the lung and swimbladder, we wish to address the question whether Wnt signaling plays a role in swimbladder development. Methodology/Principal Findings For analysis of zebrafish swimbladder development, we first identified, by whole-mount in situ hybridization (WISH), has2 as a mesenchymal marker, sox2 as the earliest epithelial marker, as well as hprt1l and elovl1a as the earliest mesothelial markers. We also demonstrated that genes encoding Wnt signaling members Wnt5b, Fz2, Fz7b, Lef1, Tcf3 were expressed in different layers of swimbladder. Then we utilized the heat-shock inducible transgenic lines hs:Dkk1-GFP and hs:ΔTcf-GFP to temporarily block canonical Wnt signaling. Inhibition of canonical Wnt signaling at various time points disturbed precursor cells specification, organization, anterioposterior patterning, and smooth muscle differentiation in all three tissue layers of swimbladder. These observations were also confirmed by using a chemical inhibitor (IWR-1) of Wnt signaling. In addition, we found that Hedgehog (Hh) signaling was activated by canonical Wnt signaling and imposed a negative feedback on the latter. Significance/Conclusion We first provided a new set of gene markers for the three tissue layers of swimbladder in zebrafish and demonstrated the expression of several key genes of Wnt signaling pathway in developing swimbladder. Our functional analysis data indicated that Wnt/β-catenin signaling is required for swimbladder early development and we also provided evidence for the crosstalk between Wnt and Hh signaling in early swimbladder development.
Collapse
|
40
|
Levänen B, Wheelock AM, Eklund A, Grunewald J, Nord M. Increased pulmonary Wnt (wingless/integrated)-signaling in patients with sarcoidosis. Respir Med 2010; 105:282-91. [PMID: 21146388 DOI: 10.1016/j.rmed.2010.11.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 10/26/2010] [Accepted: 11/08/2010] [Indexed: 11/17/2022]
Abstract
BACKGROUND Sarcoidosis is an inflammatory multisystemic granulomatous disease of unknown aetiology commonly affecting the lungs, and pulmonary fibrosis often develops in chronic sarcoidosis. It has been suggested that Wnt (Wingless/integrated)-signaling has a role in inflammatory and fibrotic processes in the lungs, but its role in sarcoidosis has not been investigated. We hypothesised that Wnts secreted from T cells or other inflammatory cells have a role in the pathogenesis of sarcoidosis. METHODS Brush biopsies and bronchoalveolar lavage (BAL) were obtained through bronchoscopy from healthy controls (n = 18) and patients with sarcoidosis (n = 48). Semi-quantitative RT-PCR, electrophoretic mobility shift assay (EMSA) and immunocytochemistry were performed to analyse Wnt expression and activation of the Wnt-signal transducer β-catenin. RESULTS Altered expression of Wnt5A, Wnt7A and Wnt7B mRNA in BAL cells was observed, as well as an increased activation of β-catenin, measured by EMSA and confirmed with immunocytochemistry, in resident lung cells from patients with sarcoidosis. More pronounced changes in Wnt expression were seen with advancing disease stage. Thus, by three independent methods, we have found evidence of increased pulmonary Wnt-activation in sarcoidosis. CONCLUSIONS In the lungs of patients with sarcoidosis there is a previously unappreciated increased Wnt-signal activation that could contribute to the inflammatory processes.
Collapse
Affiliation(s)
- Bettina Levänen
- Department of Medicine Solna, Respiratory Medicine Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
| | | | | | | | | |
Collapse
|
41
|
Janssen R, Le Gouar M, Pechmann M, Poulin F, Bolognesi R, Schwager EE, Hopfen C, Colbourne JK, Budd GE, Brown SJ, Prpic NM, Kosiol C, Vervoort M, Damen WGM, Balavoine G, McGregor AP. Conservation, loss, and redeployment of Wnt ligands in protostomes: implications for understanding the evolution of segment formation. BMC Evol Biol 2010; 10:374. [PMID: 21122121 PMCID: PMC3003278 DOI: 10.1186/1471-2148-10-374] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Accepted: 12/01/2010] [Indexed: 12/13/2022] Open
Abstract
Background The Wnt genes encode secreted glycoprotein ligands that regulate a wide range of developmental processes, including axis elongation and segmentation. There are thirteen subfamilies of Wnt genes in metazoans and this gene diversity appeared early in animal evolution. The loss of Wnt subfamilies appears to be common in insects, but little is known about the Wnt repertoire in other arthropods, and moreover the expression and function of these genes have only been investigated in a few protostomes outside the relatively Wnt-poor model species Drosophila melanogaster and Caenorhabditis elegans. To investigate the evolution of this important gene family more broadly in protostomes, we surveyed the Wnt gene diversity in the crustacean Daphnia pulex, the chelicerates Ixodes scapularis and Achaearanea tepidariorum, the myriapod Glomeris marginata and the annelid Platynereis dumerilii. We also characterised Wnt gene expression in the latter three species, and further investigated expression of these genes in the beetle Tribolium castaneum. Results We found that Daphnia and Platynereis both contain twelve Wnt subfamilies demonstrating that the common ancestors of arthropods, ecdysozoans and protostomes possessed all members of all Wnt subfamilies except Wnt3. Furthermore, although there is striking loss of Wnt genes in insects, other arthropods have maintained greater Wnt gene diversity. The expression of many Wnt genes overlap in segmentally reiterated patterns and in the segment addition zone, and while these patterns can be relatively conserved among arthropods and the annelid, there have also been changes in the expression of some Wnt genes in the course of protostome evolution. Nevertheless, our results strongly support the parasegment as the primary segmental unit in arthropods, and suggest further similarities between segmental and parasegmental regulation by Wnt genes in annelids and arthropods respectively. Conclusions Despite frequent losses of Wnt gene subfamilies in lineages such as insects, nematodes and leeches, most protostomes have probably maintained much of their ancestral repertoire of twelve Wnt genes. The maintenance of a large set of these ligands could be in part due to their combinatorial activity in various tissues rather than functional redundancy. The activity of such Wnt 'landscapes' as opposed to the function of individual ligands could explain the patterns of conservation and redeployment of these genes in important developmental processes across metazoans. This requires further analysis of the expression and function of these genes in a wider range of taxa.
Collapse
Affiliation(s)
- Ralf Janssen
- Department of Earth Sciences, Palaeobiology, Villavägen 16, SE-75236 Uppsala, Sweden
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Yin A, Winata CL, Korzh S, Korzh V, Gong Z. Expression of components of Wnt and Hedgehog pathways in different tissue layers during lung development in Xenopus laevis. Gene Expr Patterns 2010; 10:338-44. [PMID: 20682360 DOI: 10.1016/j.gep.2010.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Revised: 07/21/2010] [Accepted: 07/24/2010] [Indexed: 11/19/2022]
Abstract
Although Wnt and Hedgehog (Hh) signaling pathways play important roles in mouse lung development, these have not been explored in the development of Xenopus lung. This may be due to the lack of specific molecular markers for different layers of tissue in Xenopus lung and/or insufficient knowledge on expression patterns of Wnt and Hh signaling components in Xenopus lung. In this study, we first described the early morphogenesis of Xenopus laevis lung by using surfactant protein C (sftpc) as a marker of lung epithelium and compared it with the expression patterns of several genes of Wnt and Hh pathways in Xenopus lungs. Our data showed that wnt7b was expressed in the entire lung epithelium from stage 37 to stage 45, while two other Wnt signaling components, wnt5a and wif1 (wnt inhibitory factor 1), were expressed in the mesenchyme layer of the entire lungs through stages 39-41. We also found that sonic hedgehog (shh) was expressed at stage 41 only in the anterior, but not in the posterior part of the lungs. These results show the expression of wnt5a, wnt7b, wif1 and shh in different layers of tissue of Xenopus lungs at early developmental stages, which implies different roles of these genes in the early development of Xenopus lungs. Our study for the first time defined specific molecular markers for description of early lung development in Xenopus, as well as provided information about expression of components of Wnt and Hh pathways in early Xenopus lungs, which should be useful for future functional studies.
Collapse
Affiliation(s)
- Ao Yin
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore
| | | | | | | | | |
Collapse
|
43
|
Weng T, Liu L. The role of pleiotrophin and beta-catenin in fetal lung development. Respir Res 2010; 11:80. [PMID: 20565841 PMCID: PMC2901351 DOI: 10.1186/1465-9921-11-80] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Accepted: 06/18/2010] [Indexed: 12/21/2022] Open
Abstract
Mammalian lung development is a complex biological process, which is temporally and spatially regulated by growth factors, hormones, and extracellular matrix proteins. Abnormal changes of these molecules often lead to impaired lung development, and thus pulmonary diseases. Epithelial-mesenchymal interactions are crucial for fetal lung development. This paper reviews two interconnected pathways, pleiotrophin and Wnt/β-catenin, which are involved in fibroblast and epithelial cell communication during fetal lung development.
Collapse
Affiliation(s)
- Tingting Weng
- Department of Physiological Sciences, Oklahoma State University, Stillwater, Oklahoma 74078, USA
| | | |
Collapse
|
44
|
beta-Catenin promotes respiratory progenitor identity in mouse foregut. Proc Natl Acad Sci U S A 2009; 106:16287-92. [PMID: 19805295 DOI: 10.1073/pnas.0902274106] [Citation(s) in RCA: 154] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The mammalian respiratory system, consisting of both trachea and lung, initiates from the foregut endoderm. The molecular program that instructs endodermal cells to adopt the respiratory fate is not fully understood. Here we show that conditional inactivation of beta-Catenin (also termed Ctnnb1) in foregut endoderm leads to absence of both the trachea and lung due to a failure in maintaining the respiratory fate. In converse, conditional expression of an activated form of beta-Catenin leads to expansion of Nkx2.1, an early marker for the trachea and lung, into adjacent endoderm including the stomach epithelium. Analyses of these mutants show that the loss or gain of trachea/lung progenitor identity is accompanied by an expansion or contraction of esophagus/stomach progenitor identity, respectively. Our findings reveal an early role for beta-Catenin in the establishment of respiratory progenitors in mouse foregut endoderm.
Collapse
|
45
|
Friedman MS, Oyserman SM, Hankenson KD. Wnt11 promotes osteoblast maturation and mineralization through R-spondin 2. J Biol Chem 2009; 284:14117-25. [PMID: 19213727 PMCID: PMC2682860 DOI: 10.1074/jbc.m808337200] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 02/10/2009] [Indexed: 11/06/2022] Open
Abstract
Wnt11 signals through both canonical (beta-catenin) and non-canonical pathways and is up-regulated during osteoblast differentiation and fracture healing. In these studies, we evaluated the role of Wnt11 during osteoblastogenesis. Wnt11 overexpression in MC3T3E1 pre-osteoblasts increases beta-catenin accumulation and promotes bone morphogenetic protein (BMP)-induced expression of alkaline phosphatase and mineralization. Wnt11 dramatically increases expression of the osteoblast-associated genes Dmp1 (dentin matrix protein 1), Phex (phosphate-regulating endopeptidase homolog), and Bsp (bone sialoprotein). Wnt11 also increases expression of Rspo2 (R-spondin 2), a secreted factor known to enhance Wnt signaling. Overexpression of Rspo2 is sufficient for increasing Dmp1, Phex, and Bsp expression and promotes bone morphogenetic protein-induced mineralization. Knockdown of Rspo2 abrogates Wnt11-mediated osteoblast maturation. Antagonism of T-cell factor (Tcf)/beta-catenin signaling with dominant negative Tcf blocks Wnt11-mediated expression of Dmp1, Phex, and Rspo2 and decreases mineralization. However, dominant negative Tcf fails to block the osteogenic effects of Rspo2 overexpression. These studies show that Wnt11 signals through beta-catenin, activating Rspo2 expression, which is then required for Wnt11-mediated osteoblast maturation.
Collapse
|
46
|
Yagui-Beltrán A, He B, Jablons DM. The role of cancer stem cells in neoplasia of the lung: past, present and future. Clin Transl Oncol 2009; 10:719-25. [PMID: 19015068 DOI: 10.1007/s12094-008-0278-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Through the identification and subsequent targeting of an exquisitely unique and phenotypically defined cancer stem-cell population exhibiting discrete therapeutic vulnerabilities (a potential source of tumor recurrence) better survival rates for these patients may be achieved. It is this impetus that is making the field of pulmonary stem cell biology a growing field in biomedicine. These efforts are leading to the steady identification of multi-potent, self-renewing and proliferative progenitor cell populations throughout the bronchopulmonary tree. These cells give rise to both transiently amplifying (TA) and terminally differentiated (TD) cells, which (like in many other organs) are crucial for tissue homeostasis. In leukemia, it has been shown that partially committed cells, which are normally responsible for tissue maintenance after trauma, may undergo transformation via mutations resulting in the selective expression of genes that accentuate and perpetuate these cells' self-renewal capabilities. It is therefore perhaps legitimate to consider stem cells as protumorigenic. It is when these cells undergo genetic mutations which make them acquire the ability to metastasize, that cancer occurs, rendering the concept of "cancer stem cells" a rather attractive one indeed.
Collapse
Affiliation(s)
- Adam Yagui-Beltrán
- Department of Surgery, UCSF Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, USA
| | | | | |
Collapse
|
47
|
Ling L, Nurcombe V, Cool SM. Wnt signaling controls the fate of mesenchymal stem cells. Gene 2008; 433:1-7. [PMID: 19135507 DOI: 10.1016/j.gene.2008.12.008] [Citation(s) in RCA: 314] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Revised: 11/26/2008] [Accepted: 12/03/2008] [Indexed: 12/14/2022]
Abstract
Multipotential mesenchymal stem cells (MSCs) are able to differentiate along several known lineages and have been shown to be efficacious for in vivo wound repair. The growth and differentiation of MSCs are known to be tightly regulated via interactions with specific extracellular mediators. Recent studies have shown that Wnts and their downstream signaling pathways play an important role in the self-renewal and differentiation of MSCs. Indeed altered bone-mass is known to result from mutations in LRP5, a Wnt co-receptor, that suggests Wnt plays an important signaling role during bone formation, possibly involving MSCs. This review outlines the current understanding of the distinct Wnt intracellular pathways including both canonical beta-catenin/TCF(LEF1) signaling and non-canonical cascades mediated by JNK, PKC, Ca(2+) or Rho, and how they are involved in the regulation of MSC proliferation and differentiation. We also discuss the coordination between different Wnt signaling cascades to precisely control MSC cell fate decisions, and we dissect the functional cross-talk of Wnt signaling that is known to occur with other growth factor signaling pathways.
Collapse
Affiliation(s)
- Ling Ling
- Institute of Medical Biology, Singapore
| | | | | |
Collapse
|
48
|
Zubair M, Parker KL, Morohashi KI. Developmental links between the fetal and adult zones of the adrenal cortex revealed by lineage tracing. Mol Cell Biol 2008; 28:7030-40. [PMID: 18809574 PMCID: PMC2593385 DOI: 10.1128/mcb.00900-08] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2008] [Revised: 07/04/2008] [Accepted: 09/14/2008] [Indexed: 12/29/2022] Open
Abstract
The nuclear receptor Ad4BP/SF-1 is essential for development of the adrenal cortex and the gonads, which derive from a common adrenogonadal primordium. The adrenal cortex subsequently forms morphologically distinct compartments: the inner (fetal) and outer (definitive or adult) zones. Despite considerable effort, the mechanisms that mediate the differential development of the adrenal and gonadal primordia and the fetal and adult adrenal cortices remain incompletely understood. We previously identified a fetal adrenal-specific enhancer (FAdE) in the Ad4BP/SF-1 locus that directs transgene expression to the fetal adrenal cortex and demonstrated that this enhancer is autoregulated by Ad4BP/SF-1. We now combine the FAdE with the Cre/loxP system to trace cell lineages in which the FAdE was active at some stage in development. These lineage-tracing studies establish definitively that the adult cortex derives from precursor cells in the fetal cortex in which the FAdE was activated before the organization into two distinct zones. The potential of these fetal adrenocortical cells to enter the pathway that eventuates in cells of the adult cortex disappeared by embryonic day 14.5. Thus, these studies demonstrate a direct link between the fetal and adult cortices involving a transition that must occur before a specific stage of development.
Collapse
Affiliation(s)
- Mohamad Zubair
- Division of Sex Differentiation, National Institute for Basic Biology, National Institutes of Natural Sciences,Okazaki, Japan
| | | | | |
Collapse
|
49
|
Laumanns IP, Fink L, Wilhelm J, Wolff JC, Mitnacht-Kraus R, Graef-Hoechst S, Stein MM, Bohle RM, Klepetko W, Hoda MAR, Schermuly RT, Grimminger F, Seeger W, Voswinckel R. The noncanonical WNT pathway is operative in idiopathic pulmonary arterial hypertension. Am J Respir Cell Mol Biol 2008; 40:683-91. [PMID: 19029018 DOI: 10.1165/rcmb.2008-0153oc] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Idiopathic pulmonary arterial hypertension (IPAH) is a fatal disease that comprises sustained vasoconstriction, enhanced proliferation of pulmonary vascular cells, and in situ thrombosis. The discovery of several contributing signaling pathways in recent years has resulted in an expanding array of novel therapies; however, IPAH remains a progressive disease with poor outcome in most instances. To identify new regulatory pathways of vascular remodeling in IPAH, we performed transcriptome-wide expression profiling of laser-microdissected pulmonary arterial resistance vessels derived from explanted IPAH and nontransplanted donor lung tissues. Statistical analysis of the data derived from six individuals in each group showed significant regulation of several mediators of the canonical and noncanonical WNT pathway. As to the noncanonical WNT pathway, the planar cell polarity (PCP) pathway, the ras homolog gene family member A (RHOA), and ras-related C3 botulinum toxin substrate-1 (RAC1) were strongly up-regulated. Real-time PCR of laser-microdissected pulmonary arteries confirmed these array results and showed in addition significant up-regulation of further PCP mediators wingless member 11 (WNT11), disheveled associated activator of morphogenesis-1 (DAAM1), disheveled (DSV), and RHO-kinase (ROCK). Immunohistochemical staining and semiquantitative expression analysis confirmed the markedly enhanced expression of the PCP mediators in the pulmonary resistance vessels, in particular in the endothelial layer in IPAH. Therefore we propose the PCP pathway to be critically involved in the regulation of vascular remodeling in IPAH.
Collapse
Affiliation(s)
- Isabel P Laumanns
- Department of Internal Medicine, University Hospital of Giessen, Giessen, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Yin Y, White AC, Huh SH, Hilton MJ, Kanazawa H, Long F, Ornitz DM. An FGF-WNT gene regulatory network controls lung mesenchyme development. Dev Biol 2008; 319:426-36. [PMID: 18533146 DOI: 10.1016/j.ydbio.2008.04.009] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2008] [Revised: 04/03/2008] [Accepted: 04/07/2008] [Indexed: 02/06/2023]
Abstract
Lung mesenchyme is a critical determinant of the shape and size of the lung, the extent and patterning of epithelial branching, and the formation of the pulmonary vasculature and interstitial mesenchymal components of the adult lung. Fibroblast growth factor 9 (FGF9) is a critical regulator of lung mesenchymal growth; however, upstream mechanisms that modulate the FGF mesenchymal signal and the downstream targets of mesenchymal FGF signaling are poorly understood. Here we have identified a robust regulatory network in which mesenchymal FGF signaling regulates beta-Catenin mediated WNT signaling in lung mesenchyme. By conditionally inactivating beta-Catenin in lung mesenchyme, we show that mesenchymal WNT-beta-Catenin signaling is essential for lung development and acts to regulate the cell cycle G1 to S transition and the FGF responsiveness of mesenchyme. Together, both FGF and WNT signaling pathways function to sustain mesenchymal growth and coordinate epithelial morphogenesis during the pseudoglandular stage of lung development.
Collapse
Affiliation(s)
- Yongjun Yin
- Department of Developmental Biology, Washington University School of Medicine, Campus Box 8103, 660 S Euclid Avenue, St Louis, MO 63110, USA
| | | | | | | | | | | | | |
Collapse
|