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Rosas-Madrigal S, Villarreal-Molina MT, Flores-Rivera J, Rivas-Alonso V, Macias-Kauffer LR, Ordoñez G, Chima-Galán MDC, Acuña-Alonzo V, Macín-Pérez G, Barquera R, Granados J, Valle-Rios R, Corona T, Carnevale A, Romero-Hidalgo S. Interaction of HLA Class II rs9272219 and TMPO rs17028450 (Arg690Cys) Variants Affects Neuromyelitis Optica Spectrum Disorder Susceptibility in an Admixed Mexican Population. Front Genet 2021; 12:647343. [PMID: 34335680 PMCID: PMC8320513 DOI: 10.3389/fgene.2021.647343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 06/23/2021] [Indexed: 12/02/2022] Open
Abstract
Neuromyelitis Optica Spectrum Disorder (NMOSD) is a demyelinating autoimmune disease of the central nervous system, more prevalent in individuals of non-European ancestry. Few studies have analyzed genetic risk factors in NMOSD, and HLA class II gene variation has been associated NMOSD risk in various populations including Mexicans. Thymopoietin (TMPO) has not been tested as a candidate gene for NMOSD or other autoimmune disease, however, experimental evidence suggests this gene may be involved in negative selection of autoreactive T cells and autoimmunity. We thus investigated whether the missense TMPO variant rs17028450 (Arg630Cys, frequent in Latin America) is associated with NMOSD, and whether this variant shows an interaction with HLA-class II rs9272219, previously associated with NMOSD risk. A total of 119 Mexican NMOSD patients, 1208 controls and 357 Native Mexican individuals were included. The HLA rs9272219 “T” risk allele frequency ranged from 21 to 68%, while the rs17028450 “T” minor allele frequency was as high as 18% in Native Mexican groups. Both rs9272219 and rs17028450 were significantly associated with NMOSD risk under additive models (OR = 2.48; p = 8 × 10–10 and OR = 1.59; p = 0.0075, respectively), and a significant interaction between both variants was identified with logistic regression models (p = 0.048). Individuals bearing both risk alleles had an estimated 3.9-fold increased risk of NMOSD. To our knowledge, this is the first study reporting an association of TMPO gene variation with an autoimmune disorder and the interaction of specific susceptibility gene variants, that may contribute to the genetic architecture of NMOSD in admixed Latin American populations.
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Affiliation(s)
- Sandra Rosas-Madrigal
- Laboratorio de Enfermedades Mendelianas, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | | | - José Flores-Rivera
- Laboratorio Clínico de Enfermedades Neurodegenerativas, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suarez" (INNN), Mexico City, Mexico
| | - Verónica Rivas-Alonso
- Laboratorio Clínico de Enfermedades Neurodegenerativas, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suarez" (INNN), Mexico City, Mexico
| | - Luis Rodrigo Macias-Kauffer
- Unidad de Genómica de Poblaciones Aplicada a La Salud, Facultad de Química, UNAM/INMEGEN, Mexico City, Mexico
| | | | | | | | | | - Rodrigo Barquera
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Julio Granados
- Departamento de Trasplantes, Instituto Nacional de Ciencias Medicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
| | - Ricardo Valle-Rios
- División de Investigación, Facultad de Medicina, Unidad de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Teresa Corona
- Laboratorio Clínico de Enfermedades Neurodegenerativas, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suarez" (INNN), Mexico City, Mexico
| | - Alessandra Carnevale
- Laboratorio de Enfermedades Mendelianas, Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Sandra Romero-Hidalgo
- Departamento de Genómica Computacional, Instituto Nacional de Medicina Genómica (INMEGEN), Mexico City, Mexico
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Hassnain Waqas SF, Noble A, Hoang AC, Ampem G, Popp M, Strauß S, Guille M, Röszer T. Adipose tissue macrophages develop from bone marrow-independent progenitors in Xenopus laevis and mouse. J Leukoc Biol 2017; 102:845-855. [PMID: 28642277 PMCID: PMC5574031 DOI: 10.1189/jlb.1a0317-082rr] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/26/2017] [Accepted: 05/27/2017] [Indexed: 12/14/2022] Open
Abstract
ATMs have a metabolic impact in mammals as they contribute to metabolically harmful AT inflammation. The control of the ATM number may have therapeutic potential; however, information on ATM ontogeny is scarce. Whereas it is thought that ATMs develop from circulating monocytes, various tissue-resident Mϕs are capable of self-renewal and develop from BM-independent progenitors without a monocyte intermediate. Here, we show that amphibian AT contains self-renewing ATMs that populate the AT before the establishment of BM hematopoiesis. Xenopus ATMs develop from progenitors of aVBI. In the mouse, a significant amount of ATM develops from the yolk sac, the mammalian equivalent of aVBI. In summary, this study provides evidence for a prenatal origin of ATMs and shows that the study of amphibian ATMs can enhance the understanding of the role of the prenatal environment in ATM development.
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Affiliation(s)
| | - Anna Noble
- European Xenopus Resource Centre, School of Biological Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Anh C Hoang
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | - Grace Ampem
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | - Manuela Popp
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | - Sarah Strauß
- Ambystoma Mexicanum Bioregeneration Center, Department of Plastic, Aesthetic, Hand and Reconstructive Surgery, Hannover Medical School, Medizinische Hochschule Hannover, Hannover, Germany
| | - Matthew Guille
- European Xenopus Resource Centre, School of Biological Sciences, University of Portsmouth, Portsmouth, United Kingdom
| | - Tamás Röszer
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany;
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Silva AB, Palmer DB. Evidence of conserved neuroendocrine interactions in the thymus: intrathymic expression of neuropeptides in mammalian and non-mammalian vertebrates. Neuroimmunomodulation 2011; 18:264-70. [PMID: 21952678 DOI: 10.1159/000329493] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The function of lymphoid organs and immune cells is often modulated by hormones, steroids and neuropeptides produced by the neuroendocrine and immune systems. The thymus intrinsically produces these factors and a comparative analysis of the expression of neuropeptides in the thymus of different species would highlight the evolutionary importance of neuroendocrine interaction in T cell development. In this review, we highlight the evidence which describes the intrathymic expression and function of various neuropeptides and their receptors, in particular somatostatin, substance P, vasointestinal polypeptide, calcitonin gene-related peptide and neuropeptide Y, in mammals (human, rodent) and non-mammals (avian, amphibian and teleost), and conclude that neuropeptides play a conserved role in vertebrate thymocyte development.
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Affiliation(s)
- Alberto B Silva
- Infection and Immunity Group, Department of Veterinary Basic Sciences, Royal Veterinary College, London, UK
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Haiyan D, Wensheng L, Haoran L. Comparative analyses of sequence structure, evolution, and expression of four somatostatin receptors in orange-spotted grouper (Epinephelus coioides). Mol Cell Endocrinol 2010; 323:125-36. [PMID: 20347929 DOI: 10.1016/j.mce.2010.03.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2009] [Revised: 03/16/2010] [Accepted: 03/19/2010] [Indexed: 11/27/2022]
Abstract
Somatostatins (SSs) and somatostatin receptors (SSTRs) play important roles in the growth, development and metabolism of vertebrates. In the present study, four SSTRs were isolated from orange-spotted grouper (Epinephelus coioides), a coral fish of high commercial value cultivated in Southeast Asia. Phylogenetic tree analysis grouped the four SSTRs as two distinct groups of SSTR1 and SSTR2/3/5. Four SSTRs exhibited high homology across the vertebrates. The expression of four grouper SSTR mRNAs was studied in 11 tissues. The highest level of SSTR1 mRNA was found in forebrain. The mRNAs of SSTR2 and SSTR3 were highly expressed in pituitary, forebrain and liver. The levels of SSTR5 mRNA were low in most tissues except for pituitary and intestine. The expression of four grouper SSTR mRNAs was investigated in seven embryonic stages and five early larval development stages. The highest levels of SSTR1 and 2 mRNAs appeared during hatching, while the highest levels of SSTR3 and 5 mRNAs were found in brain vesicle stage. Intraperitoneal injection of SS14 significantly increased the levels of all four SSTR mRNAs in pituitary and SSTR1, 3 mRNAs in liver in a dose-dependent manner, but no effect on SSTR2 and 5 in liver. These observations contribute to the understanding of the evolution of SSTR family and offer information on structure, distribution and function of fish SSTRs.
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Affiliation(s)
- Dong Haiyan
- State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals and Guangdong Provincial Key Laboratory for Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China
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Chen JH, Tarry-Adkins JL, Heppolette CAA, Palmer DB, Ozanne SE. Early-life nutrition influences thymic growth in male mice that may be related to the regulation of longevity. Clin Sci (Lond) 2009; 118:429-38. [PMID: 19874273 DOI: 10.1042/cs20090429] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nutrition and growth rate during early life can influence later health and lifespan. We have demonstrated previously that low birthweight, resulting from maternal protein restriction during pregnancy followed by catch-up growth in rodents, was associated with shortened lifespan, whereas protein restriction and slow growth during lactation increased lifespan. The underlying mechanisms by which these differences arise are unknown. In the present study, we report that maternal protein restriction in mice influences thymic growth in early adult life. Offspring of dams fed a low-protein diet during lactation (PLP offspring) had significant thymic growth from 21 days to 12 weeks of age, whereas this was not observed in control mice or offspring of dams fed a low-protein diet during pregnancy (recuperated offspring). PCNA (proliferating-cell nuclear antigen) and SIRT1 (silent information regulator 1) protein levels at 21 days of age were significantly higher in the thymus from both PLP mice (P<0.001 and P<0.05 respectively) and recuperated mice (P<0.001 and P<0.01 respectively) compared with controls. At 12 weeks, PLP mice maintained a higher SIRT1 level, whereas PCNA was decreased in the thymus from recuperated offspring. This suggests that mitotic activity was initially enhanced in the thymus from both PLP and recuperated offspring, but remained sustained into adulthood only in PLP mice. The differential mitotic activity in the thymus from PLP and recuperated mice appeared to be influenced by changes in sex hormone concentrations and the expression of p53, p16, the androgen receptor, IL-7 (interleukin-7) and the IL-7 receptor. In conclusion, differential thymic growth may contribute to the regulation of longevity by maternal diet.
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Affiliation(s)
- Jian-Hua Chen
- University of Cambridge Metabolic Research Laboratories, Institute of Metabolic Science, University of Cambridge, Cambridge CB2 0QQ, U.K.
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Patel K, Taub DD. Role of neuropeptides, hormones, and growth factors in regulating thymopoiesis in middle to old age. F1000 BIOLOGY REPORTS 2009; 1:42. [PMID: 20948643 PMCID: PMC2924688 DOI: 10.3410/b1-42] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The deterioration in adaptive immunity and T-lymphocyte output and the narrowing of the T cell receptor repertoire with age are largely attributable to thymic involution. The loss of thymic function with age may be due to diminished numbers of early thymic progenitors and epithelial cells, and the loss of critical tropic factors within the thymic microenvironment. Here we review some of the recent literature demonstrating a role for neuropeptides, hormones, and growth factors that can influence thymopoiesis associated with stress and aging.
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Affiliation(s)
- Kalpesh Patel
- Laboratory of Immunology, National Institute of Aging, Intramural Research Program, National Institutes of Health, Biomedical Research Center 251 Bayview Boulevard, Room 8C222, Baltimore, MD 21224 USA
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