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Yan X, Managlia E, Zhao YY, Tan XD, De Plaen IG. Macrophage-derived IGF-1 protects the neonatal intestine against necrotizing enterocolitis by promoting microvascular development. Commun Biol 2022; 5:320. [PMID: 35388142 PMCID: PMC8987083 DOI: 10.1038/s42003-022-03252-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 03/11/2022] [Indexed: 02/07/2023] Open
Abstract
Necrotizing enterocolitis (NEC) is a deadly bowel necrotic disease of premature infants. Low levels of plasma IGF-1 predispose premature infants to NEC. While increasing evidence suggests that defective perinatal intestinal microvascular development plays a role in NEC, the involved mechanism remains incompletely understood. We report here that serum and intestinal IGF-1 are developmentally regulated during the perinatal period in mice and decrease during experimental NEC. Neonatal intestinal macrophages produce IGF-1 and promote endothelial cell sprouting in vitro via IGF-1 signaling. In vivo, in the neonatal intestine, macrophage-derived IGF-1 promotes VEGF expression and endothelial cell proliferation and protects against experimental NEC. Exogenous IGF-1 preserves intestinal microvascular density and protects against experimental NEC. In human NEC tissues, villous endothelial cell proliferation and IGF-1- producing macrophages are decreased compared to controls. Together, our results suggest that defective IGF-1-production by neonatal macrophages impairs neonatal intestinal microvascular development and predisposes the intestine to necrotizing enterocolitis.
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Affiliation(s)
- Xiaocai Yan
- grid.16753.360000 0001 2299 3507Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.16753.360000 0001 2299 3507Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s. Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Elizabeth Managlia
- grid.16753.360000 0001 2299 3507Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.16753.360000 0001 2299 3507Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s. Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - You-Yang Zhao
- grid.413808.60000 0004 0388 2248Program for Lung and Vascular Biology, Stanley Manne Children’s. Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL USA ,grid.16753.360000 0001 2299 3507Departments of Pediatrics, Pharmacology and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Xiao-Di Tan
- grid.16753.360000 0001 2299 3507Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s. Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.16753.360000 0001 2299 3507Division of Gastroenterology, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Isabelle G. De Plaen
- grid.16753.360000 0001 2299 3507Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.16753.360000 0001 2299 3507Center for Intestinal and Liver Inflammation Research, Stanley Manne Children’s. Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL USA
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2
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MLL1 is required for maintenance of intestinal stem cells. PLoS Genet 2021; 17:e1009250. [PMID: 34860830 PMCID: PMC8641872 DOI: 10.1371/journal.pgen.1009250] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 10/30/2021] [Indexed: 12/12/2022] Open
Abstract
Epigenetic mechanisms are gatekeepers for the gene expression patterns that establish and maintain cellular identity in mammalian development, stem cells and adult homeostasis. Amongst many epigenetic marks, methylation of histone 3 lysine 4 (H3K4) is one of the most widely conserved and occupies a central position in gene expression. Mixed lineage leukemia 1 (MLL1/KMT2A) is the founding mammalian H3K4 methyltransferase. It was discovered as the causative mutation in early onset leukemia and subsequently found to be required for the establishment of definitive hematopoiesis and the maintenance of adult hematopoietic stem cells. Despite wide expression, the roles of MLL1 in non-hematopoietic tissues remain largely unexplored. To bypass hematopoietic lethality, we used bone marrow transplantation and conditional mutagenesis to discover that the most overt phenotype in adult Mll1-mutant mice is intestinal failure. MLL1 is expressed in intestinal stem cells (ISCs) and transit amplifying (TA) cells but not in the villus. Loss of MLL1 is accompanied by loss of ISCs and a differentiation bias towards the secretory lineage with increased numbers and enlargement of goblet cells. Expression profiling of sorted ISCs revealed that MLL1 is required to promote expression of several definitive intestinal transcription factors including Pitx1, Pitx2, Foxa1, Gata4, Zfp503 and Onecut2, as well as the H3K27me3 binder, Bahcc1. These results were recapitulated using conditional mutagenesis in intestinal organoids. The stem cell niche in the crypt includes ISCs in close association with Paneth cells. Loss of MLL1 from ISCs promoted transcriptional changes in Paneth cells involving metabolic and stress responses. Here we add ISCs to the MLL1 repertoire and observe that all known functions of MLL1 relate to the properties of somatic stem cells, thereby highlighting the suggestion that MLL1 is a master somatic stem cell regulator.
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Yu W, Sun Z, Sweat Y, Sweat M, Venugopalan SR, Eliason S, Cao H, Paine ML, Amendt BA. Pitx2-Sox2-Lef1 interactions specify progenitor oral/dental epithelial cell signaling centers. Development 2020; 147:dev186023. [PMID: 32439755 PMCID: PMC7286298 DOI: 10.1242/dev.186023] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 04/18/2020] [Indexed: 12/14/2022]
Abstract
Epithelial signaling centers control epithelial invagination and organ development, but how these centers are specified remains unclear. We report that Pitx2 (the first transcriptional marker for tooth development) controls the embryonic formation and patterning of epithelial signaling centers during incisor development. We demonstrate using Krt14Cre /Pitx2flox/flox (Pitx2cKO ) and Rosa26CreERT/Pitx2flox/flox mice that loss of Pitx2 delays epithelial invagination, and decreases progenitor cell proliferation and dental epithelium cell differentiation. Developmentally, Pitx2 regulates formation of the Sox2+ labial cervical loop (LaCL) stem cell niche in concert with two signaling centers: the initiation knot and enamel knot. The loss of Pitx2 disrupted the patterning of these two signaling centers, resulting in tooth arrest at E14.5. Mechanistically, Pitx2 transcriptional activity and DNA binding is inhibited by Sox2, and this interaction controls gene expression in specific Sox2 and Pitx2 co-expression progenitor cell domains. We demonstrate new transcriptional mechanisms regulating signaling centers by Pitx2, Sox2, Lef1 and Irx1.
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Affiliation(s)
- Wenjie Yu
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Zhao Sun
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
- Division of Nephrology, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Yan Sweat
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Mason Sweat
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | | | - Steven Eliason
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Huojun Cao
- Iowa Institute for Oral Health Research, College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA
| | - Michael L Paine
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA 90033, USA
| | - Brad A Amendt
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
- Iowa Institute for Oral Health Research, College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA
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4
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Gowans LJJ, Cameron-Christie S, Slayton RL, Busch T, Romero-Bustillos M, Eliason S, Sweat M, Sobreira N, Yu W, Kantaputra PN, Wohler E, Adeyemo WL, Lachke SA, Anand D, Campbell C, Drummond BK, Markie DM, van Vuuren WJ, van Vuuren LJ, Casamassimo PS, Ettinger R, Owais A, van Staden I, Amendt BA, Adeyemo AA, Murray JC, Robertson SP, Butali A. Missense Pathogenic variants in KIF4A Affect Dental Morphogenesis Resulting in X-linked Taurodontism, Microdontia and Dens-Invaginatus. Front Genet 2019; 10:800. [PMID: 31616463 PMCID: PMC6764483 DOI: 10.3389/fgene.2019.00800] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 07/30/2019] [Indexed: 12/13/2022] Open
Abstract
The etiology of dental anomalies is multifactorial; and genetic and environmental factors that affect the dental lamina have been implicated. We investigated two families of European ancestry in which males were affected by taurodontism, microdontia and dens invaginatus. In both families, males were related to each other via unaffected females. A linkage analysis was conducted in a New Zealand family, followed by exome sequencing and focused analysis of the X-chromosome. In a US family, exome sequencing of the X-chromosome was followed by Sanger sequencing to conduct segregation analyses. We identified two independent missense variants in KIF4A that segregate in affected males and female carriers. The variant in a New Zealand family (p.Asp371His) predicts the substitution of a residue in the motor domain of the protein while the one in a US family (p.Arg771Lys) predicts the substitution of a residue in the domain that interacts with Protein Regulator of Cytokinesis 1 (PRC1). We demonstrated that the gene is expressed in the developing tooth bud during development, and that the p.Arg771Lys variant influences cell migration in an in vitro assay. These data implicate missense variations in KIF4A in a pathogenic mechanism that causes taurodontism, microdontia and dens invaginatus phenotypes.
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Affiliation(s)
- Lord J J Gowans
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Sophia Cameron-Christie
- Department of Women's and Children's Health, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Rebecca L Slayton
- Department of Pediatric Dentistry, University of Washington, Seattle, WA, United States
| | - Tamara Busch
- Department of Oral Pathology, Radiology and Medicine, University of Iowa, Iowa City, IA, United States
| | | | - Steven Eliason
- Department of Anatomy, University of Iowa, Iowa City, IA, United States
| | - Mason Sweat
- Department of Anatomy, University of Iowa, Iowa City, IA, United States
| | - Nara Sobreira
- Institute of Genetic Medicine, John Hopkins University, Baltimore, MD, United States
| | - Wenjie Yu
- Department of Anatomy, University of Iowa, Iowa City, IA, United States
| | - Piranit N Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Elizabeth Wohler
- Institute of Genetic Medicine, John Hopkins University, Baltimore, MD, United States
| | - Wasiu Lanre Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - Salil A Lachke
- Department of Biological Sciences, University of Delaware, Newark, DE, United States
| | - Deepti Anand
- Department of Biological Sciences, University of Delaware, Newark, DE, United States
| | - Collen Campbell
- Department of Internal Medicine, University of Iowa, Iowa City, IA, United States
| | | | - David M Markie
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | | | | | - Paul S Casamassimo
- Department of Pediatric Dentistry, Ohio State University, Columbus, OH, United States
| | - Ronald Ettinger
- Department of Prosthodontics, University of Iowa, Iowa City, IA, United States
| | - Arwa Owais
- Department of Pediatric Dentistry, College of Dentistry, University of Iowa, Iowa City, IA, United States
| | - I van Staden
- Department of Oral Sciences, University of Otago, Dunedin, New Zealand
| | - Brad A Amendt
- Department of Anatomy, University of Iowa, Iowa City, IA, United States
| | | | - Jeffrey C Murray
- Department of Pediatrics University of Iowa, Iowa City, IA, United States
| | - Stephen P Robertson
- Department of Women's and Children's Health, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, University of Iowa, Iowa City, IA, United States
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5
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Nakajima K, Tazawa I, Shi YB. A unique role of thyroid hormone receptor β in regulating notochord resorption during Xenopus metamorphosis. Gen Comp Endocrinol 2019; 277:66-72. [PMID: 30851299 PMCID: PMC6535367 DOI: 10.1016/j.ygcen.2019.03.006] [Citation(s) in RCA: 16] [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: 01/30/2019] [Revised: 02/22/2019] [Accepted: 03/05/2019] [Indexed: 12/14/2022]
Abstract
Tail resorption during anuran metamorphosis is perhaps the most dramatic tissue transformation that occurs during vertebrate development. Earlier studies in highly related anuran species Xenopus laevis and Xenopus tropicalis have shown that thyroid hormone (T3) receptor (TR) plays a necessary and sufficient role to mediate the causative effect of T3 on metamorphosis. Of the two known TR genes in vertebrates, TRα is highly expressed during both premetamorphosis and metamorphosis while TRβ expression is low in premetamorphic tadpoles but highly upregulated as a direct target gene of T3 during metamorphosis, suggesting potentially different functions during metamorphosis. Indeed, gene knockout studies have shown that knocking out TRα and TRβ has different effects on tadpole development. In particularly, homozygous TRβ knockout tadpoles become tailed frogs well after sibling wild type ones complete metamorphosis. Most noticeably, in TRβ-knockout tadpoles, an apparently normal notochord is present when the notochord in wild-type and TRα-knockout tadpoles disappears. Here, we have investigated how tail notochord resorption is regulated by TR. We show that TRβ is selectively very highly expressed in the notochord compared to TRα. We have also discovered differential regulation of several matrix metalloproteinases (MMPs), which are known to be upregulated by T3 and implicated to play a role in tissue resorption by degrading the extracellular matrix (ECM). In particular, MMP9-TH and MMP13 are extremely highly expressed in the notochord compared to the rest of the tail. In situ hybridization analyses show that these MMPs are expressed in the outer sheath cells and/or the connective tissue sheath surrounding the notochord. Our findings suggest that high levels of TRβ expression in the notochord specifically upregulate these MMPs, which in turn degrades the ECM, leading to the collapse of the notochord and its subsequent resorption during metamorphosis.
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Affiliation(s)
- Keisuke Nakajima
- Division of Embryology, Amphibian Research Center, Hiroshima University, Higashihiroshima 739-8526, Japan; Section on Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA.
| | - Ichiro Tazawa
- Division of Embryology, Amphibian Research Center, Hiroshima University, Higashihiroshima 739-8526, Japan
| | - Yun-Bo Shi
- Section on Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA.
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6
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Butali A, Mossey PA, Adeyemo WL, Eshete MA, Gowans LJJ, Busch TD, Jain D, Yu W, Huan L, Laurie CA, Laurie CC, Nelson S, Li M, Sanchez-Lara PA, Magee WP, Magee KS, Auslander A, Brindopke F, Kay DM, Caggana M, Romitti PA, Mills JL, Audu R, Onwuamah C, Oseni GO, Owais A, James O, Olaitan PB, Aregbesola BS, Braimah RO, Oginni FO, Oladele AO, Bello SA, Rhodes J, Shiang R, Donkor P, Obiri-Yeboah S, Arthur FKN, Twumasi P, Agbenorku P, Plange-Rhule G, Oti AA, Ogunlewe OM, Oladega AA, Adekunle AA, Erinoso AO, Adamson OO, Elufowoju AA, Ayelomi OI, Hailu T, Hailu A, Demissie Y, Derebew M, Eliason S, Romero-Bustillous M, Lo C, Park J, Desai S, Mohammed M, Abate F, Abdur-Rahman LO, Anand D, Saadi I, Oladugba AV, Lachke SA, Amendt BA, Rotimi CN, Marazita ML, Cornell RA, Murray JC, Adeyemo AA. Genomic analyses in African populations identify novel risk loci for cleft palate. Hum Mol Genet 2019; 28:1038-1051. [PMID: 30452639 PMCID: PMC6400042 DOI: 10.1093/hmg/ddy402] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 11/07/2018] [Accepted: 11/11/2018] [Indexed: 12/13/2022] Open
Abstract
Orofacial clefts are common developmental disorders that pose significant clinical, economical and psychological problems. We conducted genome-wide association analyses for cleft palate only (CPO) and cleft lip with or without palate (CL/P) with ~17 million markers in sub-Saharan Africans. After replication and combined analyses, we identified novel loci for CPO at or near genome-wide significance on chromosomes 2 (near CTNNA2) and 19 (near SULT2A1). In situ hybridization of Sult2a1 in mice showed expression of SULT2A1 in mesenchymal cells in palate, palatal rugae and palatal epithelium in the fused palate. The previously reported 8q24 was the most significant locus for CL/P in our study, and we replicated several previously reported loci including PAX7 and VAX1.
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Affiliation(s)
- Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA,To whom correspondence should be addressed at: Azeez Butali, Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA 52242, USA. Tel:+319 3358980; Fax: 319-384-1169; ; or Adebowale A. Adeyemo, Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA. Tel: (301) 594-7501; Fax: (301) 451-5426;
| | - Peter A Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - Wasiu L Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Mekonen A Eshete
- School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - Lord J J Gowans
- Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana
| | - Tamara D Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - Deepti Jain
- Department of Biostatistics, Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Wenjie Yu
- Department of Anatomy and Cell Biology, University of Iowa, Iowa, IA, USA
| | - Liu Huan
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST, Ministry of Science and Technology) and Key Laboratory for Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Cecelia A Laurie
- Department of Biostatistics, Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Cathy C Laurie
- Department of Biostatistics, Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Sarah Nelson
- Department of Biostatistics, Genetic Analysis Center, University of Washington, Seattle, WA, USA
| | - Mary Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - Pedro A Sanchez-Lara
- Department of Pediatrics, Cedars-Sinai Medical Center, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - William P Magee
- Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Kathleen S Magee
- Operation Smile, 3641 Faculty Boulevard, Virginia Beach, VA, USA
| | - Allyn Auslander
- Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Frederick Brindopke
- Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Denise M Kay
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Michele Caggana
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Paul A Romitti
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa, IA, USA
| | - James L Mills
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, MD, USA
| | - Rosemary Audu
- Department of Virology, Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
| | - Chika Onwuamah
- Department of Virology, Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria
| | - Ganiyu O Oseni
- Department of Plastic Surgery, Ladoke Akintola University of Science and Technology, Osogbo, Oyo, Nigeria
| | - Arwa Owais
- Department of Pediatric Dentistry, University of Iowa, Iowa, IA, USA
| | - Olutayo James
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Peter B Olaitan
- Department of Plastic Surgery, Ladoke Akintola University of Science and Technology, Osogbo, Oyo, Nigeria
| | - Babatunde S Aregbesola
- Department of Oral and Maxillofacial Surgery, Obafemi Awolowo University, Ile-Ife, Osun, Nigeria
| | - Ramat O Braimah
- Department of Oral and Maxillofacial Surgery, Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria
| | - Fadekemi O Oginni
- Department of Oral and Maxillofacial Surgery, Obafemi Awolowo University, Ile-Ife, Osun, Nigeria
| | - Ayodeji O Oladele
- Department of Oral and Maxillofacial Surgery, Obafemi Awolowo University, Ile-Ife, Osun, Nigeria
| | | | - Jennifer Rhodes
- Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Rita Shiang
- Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Peter Donkor
- Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana
| | | | | | - Peter Twumasi
- Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana
| | - Pius Agbenorku
- Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana
| | | | | | - Olugbenga M Ogunlewe
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Afisu A Oladega
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Adegbayi A Adekunle
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Akinwunmi O Erinoso
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Olatunbosun O Adamson
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Abosede A Elufowoju
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Oluwanifemi I Ayelomi
- Department of Oral and Maxillofacial Surgery, University of Lagos, Akoka, Lagos, Nigeria
| | - Taiye Hailu
- School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - Abiye Hailu
- School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - Yohannes Demissie
- School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - Miliard Derebew
- School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - Steve Eliason
- Department of Anatomy and Cell Biology, University of Iowa, Iowa, IA, USA
| | | | - Cynthia Lo
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - James Park
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - Shaan Desai
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - Muiawa Mohammed
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA, USA
| | - Firke Abate
- School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - Lukman O Abdur-Rahman
- Division of Pediatric Surgery, Department of Surgery, University of Ilorin, Ilorin, Kwara, Nigeria
| | - Deepti Anand
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - Irfaan Saadi
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas, KS, USA
| | | | - Salil A Lachke
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - Brad A Amendt
- Department of Anatomy and Cell Biology, University of Iowa, Iowa, IA, USA
| | - Charles N Rotimi
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, Bethesda, MD, USA
| | - Mary L Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine; Department of Human Genetics, Graduate School of Public Health, and Clinical and Translational Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Robert A Cornell
- Department of Anatomy and Cell Biology, University of Iowa, Iowa, IA, USA
| | | | - Adebowale A Adeyemo
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, Bethesda, MD, USA,To whom correspondence should be addressed at: Azeez Butali, Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa, IA 52242, USA. Tel:+319 3358980; Fax: 319-384-1169; ; or Adebowale A. Adeyemo, Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA. Tel: (301) 594-7501; Fax: (301) 451-5426;
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7
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Nusse YM, Savage AK, Marangoni P, Rosendahl-Huber AKM, Landman TA, de Sauvage FJ, Locksley RM, Klein OD. Parasitic helminths induce fetal-like reversion in the intestinal stem cell niche. Nature 2018. [PMID: 29950724 DOI: 10.1038/s41586‐018‐0257‐1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Epithelial surfaces form critical barriers to the outside world and are continuously renewed by adult stem cells1. Whereas dynamics of epithelial stem cells during homeostasis are increasingly well understood, how stem cells are redirected from a tissue-maintenance program to initiate repair after injury remains unclear. Here we examined infection by Heligmosomoides polygyrus, a co-evolved pathosymbiont of mice, to assess the epithelial response to disruption of the mucosal barrier. H. polygyrus disrupts tissue integrity by penetrating the duodenal mucosa, where it develops while surrounded by a multicellular granulomatous infiltrate2. Crypts overlying larvae-associated granulomas did not express intestinal stem cell markers, including Lgr53, in spite of continued epithelial proliferation. Granuloma-associated Lgr5- crypt epithelium activated an interferon-gamma (IFN-γ)-dependent transcriptional program, highlighted by Sca-1 expression, and IFN-γ-producing immune cells were found in granulomas. A similar epithelial response accompanied systemic activation of immune cells, intestinal irradiation, or ablation of Lgr5+ intestinal stem cells. When cultured in vitro, granuloma-associated crypt cells formed spheroids similar to those formed by fetal epithelium, and a sub-population of H. polygyrus-induced cells activated a fetal-like transcriptional program, demonstrating that adult intestinal tissues can repurpose aspects of fetal development. Therefore, re-initiation of the developmental program represents a fundamental mechanism by which the intestinal crypt can remodel itself to sustain function after injury.
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Affiliation(s)
- Ysbrand M Nusse
- Biomedical Sciences Graduate Program, University of California, San Francisco, CA, USA.,Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | - Adam K Savage
- Howard Hughes Medical Institute and Departments of Medicine and Microbiology & Immunology, University of California, San Francisco, CA, USA
| | - Pauline Marangoni
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | - Axel K M Rosendahl-Huber
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | - Tyler A Landman
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | | | - Richard M Locksley
- Howard Hughes Medical Institute and Departments of Medicine and Microbiology & Immunology, University of California, San Francisco, CA, USA.
| | - Ophir D Klein
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA. .,Department of Pediatrics and Institute for Human Genetics, University of California, San Francisco, CA, USA.
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Parasitic helminths induce fetal-like reversion in the intestinal stem cell niche. Nature 2018; 559:109-113. [PMID: 29950724 PMCID: PMC6042247 DOI: 10.1038/s41586-018-0257-1] [Citation(s) in RCA: 180] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 05/09/2018] [Indexed: 12/18/2022]
Abstract
Epithelial surfaces form critical barriers to the outside world and are continuously renewed by adult stem cells1. Whereas epithelial stem cell dynamics during homeostasis are increasingly well understood, how stem cells are redirected from a tissue-maintenance program to initiate repair after injury remains unclear. Here, we examined infection by Heligmosomoides polygyrus (Hp), a co-evolved pathosymbiont of mice, to assess the epithelial response to disruption of the mucosal barrier. Hp disrupts tissue integrity by penetrating the duodenal mucosa, where it develops while surrounded by a multicellular granulomatous infiltrate2. Unexpectedly, intestinal stem cell (ISC) markers, including Lgr53, were lost in crypts overlying larvae-associated granulomas, despite continued epithelial proliferation. Granuloma-associated Lgr5− crypt epithelia activated an interferon-gamma (IFNγ)-dependent transcriptional program, highlighted by Sca-1 expression, and IFNγ-producing immune cells were found in granulomas. A similar epithelial response accompanied systemic activation of immune cells, intestinal irradiation, or ablation of Lgr5+ ISCs. Granuloma-associated crypt cells generated fetal-like spheroids in culture, and a sub-population of Hp-induced cells activated a fetal-like transcriptional program, demonstrating that adult intestinal tissues can repurpose aspects of fetal development. Thus, re-initiation of the developmental program represents a fundamental mechanism by which the intestinal crypt can remodel to sustain function after injury.
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Intestinal Stem Cell Niche Insights Gathered from Both In Vivo and Novel In Vitro Models. Stem Cells Int 2017; 2017:8387297. [PMID: 29081810 PMCID: PMC5610807 DOI: 10.1155/2017/8387297] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 07/03/2017] [Indexed: 12/12/2022] Open
Abstract
Intestinal stem cells are located at the base of the crypts and are surrounded by a complex structure called niche. This environment is composed mainly of epithelial cells and stroma which provides signals that govern cell maintenance, proliferation, and differentiation. Understanding how the niche regulates stem cell fate by controlling developmental signaling pathways will help us to define how stem cells choose between self-renewal and differentiation and how they maintain their undifferentiated state. Tractable in vitro assay systems, which reflect the complexity of the in vivo situation but provide higher level of control, would likely be crucial in identifying new players and mechanisms controlling stem cell function. Knowledge of the intestinal stem cell niche gathered from both in vivo and novel in vitro models may help us improve therapies for tumorigenesis and intestinal damage and make autologous intestinal transplants a feasible clinical practice.
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Sun Z, Yu W, Sanz Navarro M, Sweat M, Eliason S, Sharp T, Liu H, Seidel K, Zhang L, Moreno M, Lynch T, Holton NE, Rogers L, Neff T, Goodheart MJ, Michon F, Klein OD, Chai Y, Dupuy A, Engelhardt JF, Chen Z, Amendt BA. Sox2 and Lef-1 interact with Pitx2 to regulate incisor development and stem cell renewal. Development 2016; 143:4115-4126. [PMID: 27660324 PMCID: PMC5117215 DOI: 10.1242/dev.138883] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 09/06/2016] [Indexed: 12/26/2022]
Abstract
Sox2 marks dental epithelial stem cells (DESCs) in both mammals and reptiles, and in this article we demonstrate several Sox2 transcriptional mechanisms that regulate dental stem cell fate and incisor growth. Conditional Sox2 deletion in the oral and dental epithelium results in severe craniofacial defects, including impaired dental stem cell proliferation, arrested incisor development and abnormal molar development. The murine incisor develops initially but is absorbed independently of apoptosis owing to a lack of progenitor cell proliferation and differentiation. Tamoxifen-induced inactivation of Sox2 demonstrates the requirement of Sox2 for maintenance of the DESCs in adult mice. Conditional overexpression of Lef-1 in mice increases DESC proliferation and creates a new labial cervical loop stem cell compartment, which produces rapidly growing long tusk-like incisors, and Lef-1 epithelial overexpression partially rescues the tooth arrest in Sox2 conditional knockout mice. Mechanistically, Pitx2 and Sox2 interact physically and regulate Lef-1, Pitx2 and Sox2 expression during development. Thus, we have uncovered a Pitx2-Sox2-Lef-1 transcriptional mechanism that regulates DESC homeostasis and dental development.
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Affiliation(s)
- Zhao Sun
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Wenjie Yu
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Maria Sanz Navarro
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland
| | - Mason Sweat
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Steven Eliason
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Thad Sharp
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Huan Liu
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P.R.China
| | - Kerstin Seidel
- Department of Orofacial Sciences and Program in Craniofacial Biology, UCSF, San Francisco, CA 94143-0442, USA
| | - Li Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P.R.China
| | - Myriam Moreno
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Thomas Lynch
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Nathan E Holton
- Iowa Institute for Oral Health Research, College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA
| | - Laura Rogers
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Traci Neff
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Michael J Goodheart
- Department of Obstetrics and Gynecology, The University of Iowa, Iowa City, IA 52242, USA
| | - Frederic Michon
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, 00790 Helsinki, Finland
| | - Ophir D Klein
- Department of Orofacial Sciences and Program in Craniofacial Biology, UCSF, San Francisco, CA 94143-0442, USA
| | - Yang Chai
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA 90033, USA
| | - Adam Dupuy
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - John F Engelhardt
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Zhi Chen
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P.R.China
| | - Brad A Amendt
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
- Iowa Institute for Oral Health Research, College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA
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Lu J, Xia Q, Zhou Q. How to make insulin-producing pancreatic β cells for diabetes treatment. SCIENCE CHINA-LIFE SCIENCES 2016; 60:239-248. [DOI: 10.1007/s11427-016-0211-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Accepted: 09/20/2016] [Indexed: 12/21/2022]
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Levine AJ, Puzio-Kuter AM, Chan CS, Hainaut P. The Role of the p53 Protein in Stem-Cell Biology and Epigenetic Regulation. Cold Spring Harb Perspect Med 2016; 6:cshperspect.a026153. [PMID: 27352800 DOI: 10.1101/cshperspect.a026153] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The p53 protein plays a passive and an active role in stem cells. The transcriptional activities of p53 for cell-cycle arrest and DNA repair are largely turned off in stem cells, but there is some indication that long-term stem-cell viability may require other p53-regulated functions. When p53 is activated in stem cells, it stops cell division and promotes the commitment to a differentiation pathway and the formation of progenitor cells. In the absence of any p53 activity, stem-cell replication continues and mistakes in the normal epigenetic pathway occur at a higher probability. In the presence of a functionally active p53 protein, epigenetic stability is enforced and stem-cell replication is regulated by commitment to differentiation. Over a lifetime of an organism, stem-cell clones compete in a tissue niche for Darwinian replicative advantages and in doing so accumulate mutations that permit stem-cell replication. Mutations in the p53 gene give stem cells this advantage, increase the clonal stem-cell population, and lower the age at which cancers can occur. Li-Fraumeni patients that inherit p53 mutations develop tumors in a tissue-type-specific fashion at younger ages. Throughout the life of a Li-Fraumeni patient, the tumor types that arise occur in tissues where stem cells are active and cell division is most rapid. Thus, p53 mutations that are inherited or occur during developmental life act in stem cells of the mesenchymal and epithelial lineages, whereas p53 mutations that occur in progenitor or differentiated (somatic) cells later in life function in tissues of endodermal origins, indicating that p53 may function differently in different developmental lineages.
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Affiliation(s)
- Arnold J Levine
- Institute for Advanced Study, Princeton, New Jersey 08340 Cancer Institute of New Jersey of Rutgers Medical School, New Brunswick, New Jersey 08903
| | - Anna M Puzio-Kuter
- Institute for Advanced Study, Princeton, New Jersey 08340 Cancer Institute of New Jersey of Rutgers Medical School, New Brunswick, New Jersey 08903
| | - Chang S Chan
- Institute for Advanced Study, Princeton, New Jersey 08340 Cancer Institute of New Jersey of Rutgers Medical School, New Brunswick, New Jersey 08903
| | - Pierre Hainaut
- Grenoble Institute for Research on Cancer, Grenoble, France
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