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Yang Q, Li J, Kou C, Zhang L, Wang X, Long Y, Ni J, Li S, Zhang H. Presence of TSHR in NK Cells and Action of TSH on NK Cells. Neuroimmunomodulation 2022; 29:77-84. [PMID: 34392245 DOI: 10.1159/000516925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/25/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Thyroid-stimulating hormone receptor (TSHR) is widely expressed in human tissues and cells. TSHR is not only involved in thyroid disease but also in the neuroendocrine-immune regulatory network. However, no study has exclusively focused on the expression and function of TSHR in natural killer (NK) cells. METHODS We studied TSHR expression using reverse transcription PCR to verify TSHR mRNA transcripts in human and mouse NK cells. Human and mouse thyroid and liver tissues as well as peripheral blood mononuclear cells (PBMCs) or spleen lymphoid cells (SLCs) were used as controls. The TSHR protein levels in NK-92 cells were determined by immunofluorescence staining. The function of TSHR in NK cells was investigated by measuring the TSH-stimulated cAMP levels. RESULTS TSHR mRNA was detected in human and mouse NK cells as well as in NK-92 cells and had the same sequence as that of thyroid-derived, PBMC-derived, and liver-derived mRNA. The TSHR protein was also expressed in the cell membrane of NK-92 cells. Furthermore, the cAMP levels in NK-92 cells were significantly higher after adding 102 mIU/mL of bovine TSH at p < 0.05, which stimulated cAMP production in NK-92 cells. CONCLUSIONS Our findings confirm that TSHR is present and functional in NK cells and provide key clues for the potential regulatory effects of TSH on TSHR in NK cells in the immune system.
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Affiliation(s)
- Qingqing Yang
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Jingyi Li
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chunjia Kou
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Li Zhang
- Department of Vascular Surgery, Shandong Provincial Hospital, Jinan, China
| | - Xiansheng Wang
- Department of Internal Medicine, The Central Hospital of Shandong Electrical Power Industry, Jinan, China
| | - Yu Long
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jiajia Ni
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shuqi Li
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Haiqing Zhang
- Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, China
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Qatato M, Szumska J, Skripnik V, Rijntjes E, Köhrle J, Brix K. Canonical TSH Regulation of Cathepsin-Mediated Thyroglobulin Processing in the Thyroid Gland of Male Mice Requires Taar1 Expression. Front Pharmacol 2018; 9:221. [PMID: 29615904 PMCID: PMC5870035 DOI: 10.3389/fphar.2018.00221] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 02/27/2018] [Indexed: 12/26/2022] Open
Abstract
Trace amine-associated receptor 1 (Taar1) has been suggested as putative receptor of thyronamines. These are aminergic messengers with potential metabolic and neurological effects countering their contingent precursors, the thyroid hormones (THs). Recently, we found Taar1 to be localized at the primary cilia of rodent thyroid epithelial cells in vitro and in situ. Thus, Taar1 is present in a location of thyroid follicles where it might be involved in regulation of cathepsin-mediated proteolytic processing of thyroglobulin, and consequently TH synthesis. In this study, taar1 knock-out male mice (taar1-/-) were used to determine whether Taar1 function would entail differential alterations in thyroid states of young and adult animals. Analyses of blood serum revealed unaltered T4 and T3 concentrations and unaltered T3-over-T4 ratios upon Taar1 deficiency accompanied, however, by elevated TSH concentrations. Interestingly, TSH receptors, typically localized at the basolateral plasma membrane domain of wild type controls, were located at vesicular membranes in thyrocytes of taar1-/- mice. In addition, determination of epithelial extensions in taar1-/- thyroids showed prismatic cells, which might indicate activation states higher than in the wild type. While gross degradation of thyroglobulin was comparable to controls, deregulated thyroglobulin turnover in taar1-/- mice was indicated by luminal accumulation of covalently cross-linked thyroglobulin storage forms. These findings were in line with decreased proteolytic activities of thyroglobulin-solubilizing and -processing proteases, due to upregulated cystatins acting as their endogenous inhibitors in situ. In conclusion, Taar1-deficient mice are hyperthyrotropinemic in the absence of respective signs of primary hypothyroidism such as changes in body weight or TH concentrations in blood serum. Thyrocytes of taar1-/- mice are characterized by non-canonical TSH receptor localization in intracellular compartments, which is accompanied by altered thyroglobulin turnover due to a disbalanced proteolytic network. These finding are of significance considering the rising popularity of using TAAR1 agonists or antagonists as neuromodulating pharmacological drugs. Our study highlights the importance of further evaluating potential off-target effects regarding TSH receptor mislocalization and the thyroglobulin processing machinery, which may not only affect the TH-generating thyroid gland, but may emanate to other TH target organs like the CNS dependent on their proper supply.
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Affiliation(s)
- Maria Qatato
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Bremen, Germany
| | - Joanna Szumska
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Bremen, Germany
| | - Vladislav Skripnik
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Bremen, Germany
| | - Eddy Rijntjes
- Institut für Experimentelle Endokrinologie, Charité - Universitätsmedizin Berlin, Freie Universität Berlin-Humboldt-Universität zu Berlin-Berlin Institute of Health, Berlin, Germany
| | - Josef Köhrle
- Institut für Experimentelle Endokrinologie, Charité - Universitätsmedizin Berlin, Freie Universität Berlin-Humboldt-Universität zu Berlin-Berlin Institute of Health, Berlin, Germany
| | - Klaudia Brix
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Bremen, Germany
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Rossi M, Taddei AR, Fasciani I, Maggio R, Giorgi F. The cell biology of the thyroid-disrupting mechanism of dichlorodiphenyltrichloroethane (DDT). J Endocrinol Invest 2018. [PMID: 28639207 DOI: 10.1007/s40618-017-0716-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Dichlorodiphenyltrichloroethane (DDT) is an organochlorine known for its pesticide properties and for its negative effects on human health. It was banned in most countries for its toxicity to the endocrine system, but due to its persistence at clinically relevant concentrations in both soil and animal tissues, DDT is still linked to several health and social problems. METHODS We have previously shown that DDT exposure is causally related to the extracellular release of vesicular organelles such as microvesicles and/or exosomes by using immunocytochemistry with gold-tagged antibodies and various fluorescent membrane markers. RESULTS It is now well recognized that microvesicles and/or exosomes organelles are implicated in cell-to-cell communication, and that they are fundamental elements for transferring proteins, RNA, DNA, lipids and transcriptional factors among cells. In this short review, we discussed the role of extracellular vesicle formation in the thyroid-disrupting mechanism of DDT. In particular, we described how DDT, by dislodging the thyrotropin hormone (TSH) receptor from the raft containing compartments of the cells, prevents its activation and internalization. CONCLUSION Based on our earlier finding and on the large body of evidence here reviewed, we propose that DDT-induced formation of extracellular vesicles containing the TSH receptor could be directly involved in the development of autoimmune responses against the TSH receptor and that, therefore, their release could lead to the development of the Graves' disease.
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Affiliation(s)
- M Rossi
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, USA
| | - A R Taddei
- Section of Electron Microscopy, Great Equipment Center, University of Tuscia, Viterbo, Italy
| | - I Fasciani
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - R Maggio
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
| | - F Giorgi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
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Jara EL, Muñoz-Durango N, Llanos C, Fardella C, González PA, Bueno SM, Kalergis AM, Riedel CA. Modulating the function of the immune system by thyroid hormones and thyrotropin. Immunol Lett 2017; 184:76-83. [PMID: 28216261 DOI: 10.1016/j.imlet.2017.02.010] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 02/14/2017] [Accepted: 02/15/2017] [Indexed: 12/18/2022]
Abstract
Accumulating evidence suggests a close bidirectional communication and regulation between the neuroendocrine and immune systems. Thyroid hormones (THs) can exert responses in various immune cells, e.g., monocytes, macrophages, natural killer cells, and lymphocytes, affecting several inflammation-related processes (such as, chemotaxis, phagocytosis, reactive oxygen species generation, and cytokines production). The interactions between the endocrine and immune systems have been shown to contribute to pathophysiological conditions, including sepsis, inflammation, autoimmune diseases and viral infections. Under these conditions, TH therapy could contribute to restoring normal physiological functions. Here we discuss the effects of THs and thyroid stimulating hormone (TSH) on the immune system and the contribution to inflammation and pathogen clearance, as well as the consequences of thyroid pathologies over the function of the immune system.
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Affiliation(s)
- Evelyn L Jara
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Portugal 49, Santiago, Chile
| | - Natalia Muñoz-Durango
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Portugal 49, Santiago, Chile
| | - Carolina Llanos
- Departamento de Inmunología Clínica y Reumatología, Escuela de Medicina, Facultad de Medicina, Pontificia Universidad Católica de Chile, Marcoleta 350, Santiago, Chile
| | - Carlos Fardella
- Millennium Institute on Immunology and Immunotherapy, Departamento de Endocrinología, Escuela de Medicina, Facultad de Medicina, Pontificia Universidad Católica de Chile, Marcoleta 350, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Portugal 49, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Portugal 49, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Portugal 49, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Departamento de Endocrinología, Escuela de Medicina, Facultad de Medicina, Pontificia Universidad Católica de Chile, Marcoleta 350, Santiago, Chile; INSERM U1064, Nantes, France.
| | - Claudia A Riedel
- Millenium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas y Facultad de Medicina, Universidad Andrés Bello, Chile.
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Modern methods to investigate the oligomerization of glycoprotein hormone receptors (TSHR, LHR, FSHR). Methods Enzymol 2013; 521:367-83. [PMID: 23351750 DOI: 10.1016/b978-0-12-391862-8.00020-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
As for other GPCRs, the oligomerization of glycoprotein hormone receptors (GPHRs) appears as critical event for receptor function. By means of modern techniques based on the BRET or FRET principle, GPHR oligomerization has been reported to explain several physiological and pathological conditions. In particular, the presence of oligomers was demonstrated not only in in vitro heterologous systems but also in in vivo tissues, and GPHR homodimerization appears associated with strong negative cooperativity, thus suggesting that one hormone molecule may be sufficient for receptor dimer stimulation. In addition, oligomerization has been reported to occur early during the posttranslational maturation process and to be involved in the dominant negative effect exerted by loss-of-function TSH receptor (TSHR) mutants, that are prevalently retained inside the cell, on the surface expression of wild-type receptors. This molecular mechanism thus explains the dominant inheritance of certain forms of TSH resistance. Here, we provide the description of the methods used in the original BRET, FRET, and HTRF-RET experiments.
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