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Hellmann A, Turyn J, Zwara A, Korczynska J, Taciak A, Mika A. Alterations in the amino acid profile in patients with papillary thyroid carcinoma with and without Hashimoto's thyroiditis. Front Endocrinol (Lausanne) 2023; 14:1199291. [PMID: 37664829 PMCID: PMC10471980 DOI: 10.3389/fendo.2023.1199291] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/07/2023] [Indexed: 09/05/2023] Open
Abstract
Purpose Amino acids (AAs) play important physiological roles in living cells. Some amino acid changes in blood are specific for autoimmune disorders, and some are specific for thyroid cancer. The aims of this study were to profile AA metabolites in the serum of patients with papillary thyroid carcinoma (PTC0) without Hashimoto's thyroiditis (HT) and patients with PTC with HT (PTC1) and predict whether AA metabolites are associated with thyroid disease, thyroid hormone and thyroid autoantibodies. Methods A total of 95 serum samples were collected, including 28 healthy controls (HCs), 28 PTC0 patients and 39 PTC1 patients. Serum samples were analyzed by high-performance liquid chromatography-triple stage quadrupole-mass spectrometry (HPLC-TSQ-MS), and twenty-one amino acids (AAs) were detected. Results The serum concentration of glutamic acid was significantly elevated in PTC1 patients compared with PTC0 patients. Lysine was the second amino acid that differentiated these two groups of PTC patients. In addition, the serum concentrations of glycine, alanine and tyrosine were significantly reduced in both PTC patient groups compared to the HC group. These AAs were also correlated with thyroid hormones and antibodies. Five amino acid markers, namely, glycine, tyrosine, glutamic acid, glutamine and arginine, separated/distinguished PTC0 patients from healthy subjects, and eight AA markers, the same AAs as above without arginine but with alanine, leucine, valine and histidine, separated/distinguished PTC1 patients from healthy subjects based on ROC analysis. Conclusion Compared with the HCs, changes in AAs in PTC0 and PTC1 patients showed similar patterns, suggesting the possibility of a common pathophysiological basis, which confirms preliminary research that PTC is significantly associated with pathologically confirmed HT. We found two AAs, lysine and alanine, that can perform diagnostic functions in distinguishing PTC1 from PTC0.
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Affiliation(s)
- Andrzej Hellmann
- Department of General, Endocrine and Transplant Surgery, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Jacek Turyn
- Department of Biochemistry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Agata Zwara
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Justyna Korczynska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Aleksandra Taciak
- Department of General, Endocrine and Transplant Surgery, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Adriana Mika
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
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Yokogi K, Goto Y, Otsuka M, Ojima F, Kobayashi T, Tsuchiba Y, Takeuchi Y, Namba M, Kohno M, Tetsuka M, Takeuchi S, Matsuyama M, Aizawa S. Neuromedin U-deficient rats do not lose body weight or food intake. Sci Rep 2022; 12:17472. [PMID: 36302800 PMCID: PMC9614009 DOI: 10.1038/s41598-022-21764-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/30/2022] [Indexed: 01/12/2023] Open
Abstract
Studies in genetically modified mice establish that essential roles of endogenous neuromedin U (NMU) are anorexigenic function and metabolic regulation, indicating that NMU is expected to be a potential target for anti-obesity agents. However, in central administration experiments in rats, inconsistent results have been obtained, and the essential role of NMU energy metabolism in rats remain unclear. This study aims to elucidate the role of endogenous NMU in rats. We generated NMU knockout (KO) rats that unexpectedly showed no difference in body weight, adiposity, circulating metabolic markers, body temperature, locomotor activity, and food consumption in both normal and high fat chow feeding. Furthermore, unlike reported in mice, expressions of Nmu and NMU receptor type 2 (Nmur2) mRNA were hardly detectable in the rat hypothalamic nuclei regulating feeding and energy metabolism, including the arcuate nucleus and paraventricular nucleus, while Nmu was expressed in pars tuberalis and Nmur2 was expressed in the ependymal cell layer of the third ventricle. These results indicate that the species-specific expression pattern of Nmu and Nmur2 may allow NMU to have distinct functions across species, and that endogenous NMU does not function as an anorexigenic hormone in rats.
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Affiliation(s)
- Kyoka Yokogi
- grid.261356.50000 0001 1302 4472Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama 700-8530 Japan
| | - Yuki Goto
- grid.261356.50000 0001 1302 4472Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama 700-8530 Japan
| | - Mai Otsuka
- grid.261356.50000 0001 1302 4472Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama 700-8530 Japan
| | - Fumiya Ojima
- grid.415086.e0000 0001 1014 2000Department of Natural Sciences and Biology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192 Japan
| | - Tomoe Kobayashi
- grid.415729.c0000 0004 0377 284XDivision of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama 701-0202 Japan
| | - Yukina Tsuchiba
- grid.261356.50000 0001 1302 4472Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama 700-8530 Japan
| | - Yu Takeuchi
- grid.261356.50000 0001 1302 4472Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama 700-8530 Japan
| | - Masumi Namba
- grid.415729.c0000 0004 0377 284XDivision of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama 701-0202 Japan
| | - Mayumi Kohno
- grid.415729.c0000 0004 0377 284XDivision of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama 701-0202 Japan
| | - Minami Tetsuka
- grid.261356.50000 0001 1302 4472Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama 700-8530 Japan
| | - Sakae Takeuchi
- grid.261356.50000 0001 1302 4472Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama 700-8530 Japan
| | - Makoto Matsuyama
- grid.415729.c0000 0004 0377 284XDivision of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama 701-0202 Japan
| | - Sayaka Aizawa
- grid.261356.50000 0001 1302 4472Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama 700-8530 Japan
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3
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Xu F, Shi J, Qin X, Zheng Z, Chen M, Lin Z, Ye J, Li M. Hormone-Glutamine Metabolism: A Critical Regulatory Axis in Endocrine-Related Cancers. Int J Mol Sci 2022; 23:ijms231710086. [PMID: 36077501 PMCID: PMC9456462 DOI: 10.3390/ijms231710086] [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: 08/12/2022] [Revised: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
The endocrine-related cancers and hormones are undoubtedly highly interconnected. How hormones support or repress tumor induction and progression has been extensively profiled. Furthermore, advances in understanding the role of glutamine metabolism in mediating tumorigenesis and development, coupled with these in-depth studies on hormone (e.g., estrogen, progesterone, androgen, prostaglandin, thyroid hormone, and insulin) regulation of glutamine metabolism, have led us to think about the relationship between these three factors, which remains to be elucidated. Accordingly, in this review, we present an updated overview of glutamine metabolism traits and its influence on endocrine oncology, as well as its upstream hormonal regulation. More importantly, this hormone/glutamine metabolism axis may help in the discovery of novel therapeutic strategies for endocrine-related cancer.
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Affiliation(s)
- Fengyuan Xu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jialu Shi
- Department of Gynecology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200010, China
| | - Xueyun Qin
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
| | - Zimeng Zheng
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
| | - Min Chen
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
| | - Zhi Lin
- Department of Gynecology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200010, China
| | - Jiangfeng Ye
- Institute for Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore 138632, Singapore
| | - Mingqing Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
- NHC Key Lab. of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Shanghai 201203, China
- Correspondence:
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Han L, Yang X, Wang W, Yang X, Dong L, Lin S, Li J, Liu X. Cord blood metabolomics reveals gestational metabolic disorder associated with anti-thyroid peroxidase antibodies positivity. BMC Pregnancy Childbirth 2022; 22:244. [PMID: 35331172 PMCID: PMC8952885 DOI: 10.1186/s12884-022-04564-8] [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: 09/22/2021] [Accepted: 03/04/2022] [Indexed: 12/01/2022] Open
Abstract
Background Thyroid disease is one of the common endocrine disorders affecting the pregnant women, in which thyroid autoimmunity can alter the progress and the outcome of pregnancy. Women with euthyroid status but anti-thyroid peroxidase (anti-TPO) antibodies positivity before pregnancy are prone to subclinical gestational hypothyroidism. However, the connections between anti-TPO antibodies positivity and gestational hypothyroidism remain largely unknown. The aim of the present study is to investigate the differences of fetal metabolic profile at birth according to maternal anti-TPO status. Methods We performed 1H-NMR metabolomics on cord blood of a nested case control cohort of 22 pregnant women with matched thyroid hormone levels and demographic data, including 11 women with euthyroid status but anti-thyroid antibodies positivity (into the anti-TPO antibodies positivity group) and 11 matched women as controls with euthyroid status and negative anti-thyroid antibodies (into the control group). Results Distinct metabolic profiles were observed between the anti-TPO antibody positivity group and the nested control group, from which a total of 10 metabolites with between-group altered abundances were structurally identified. Five out of the 10 metabolites were up-regulated in the anti-TPO antibodies positivity group, including D-Glucose, L-Glutamine, 3-Hydroxybutyric acid, Myo-Inositol, Creatinine. The other 5 metabolites were down-regulated in the anti-TPO antibodies positivity group, including L-Leucine, L-Lysine, L-Glutamic acid, L-Tyrosine, and L-Phenylalanine. All the 10 metabolites have been previously reported to be correlated with hypothyroidism. Metabolite set enrichment analysis and pathway analysis suggested that amino acid metabolism pathways (especially the phenylalanine metabolism) were associated with anti-TPO antibodies positivity. Conclusion The results of this study suggested that fetal metabolic disorder is correlated with anti-TPO antibodies positivity, representing by abundance alteration of hypothyroidism associated metabolites and the related disturbance of amino acid metabolism pathways. Supplementary Information The online version contains supplementary material available at 10.1186/s12884-022-04564-8.
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Affiliation(s)
- Lingna Han
- Department of Physiology, Changzhi Medical College, Changzhi, 046000, People's Republic of China
| | - Xin Yang
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China
| | - Wen Wang
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China
| | - Xueliang Yang
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China
| | - Lina Dong
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China
| | - Shumei Lin
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China.
| | - Jianguo Li
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, People's Republic of China. .,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, 92 Wucheng Road, Taiyuan, 030006, People's Republic of China.
| | - Xiaojing Liu
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China.
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The Selective NMDA Receptor GluN2B Subunit Antagonist CP-101,606 with Antidepressant Properties Modulates Cytochrome P450 Expression in the Liver. Pharmaceutics 2021; 13:pharmaceutics13101643. [PMID: 34683936 PMCID: PMC8539289 DOI: 10.3390/pharmaceutics13101643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 11/22/2022] Open
Abstract
Recent research indicates that selective NMDA receptor GluN2B subunit antagonists may become useful for the treatment of major depressive disorders. We aimed to examine in parallel the effect of the selective NMDA receptor GluN2B subunit antagonist CP-101,606 on the pituitary/serum hormone levels and on the regulation of cytochrome P450 in rat liver. CP-101,606 (20 mg/kg ip. for 5 days) decreased the activity of CYP1A, CYP2A, CYP2B, CYP2C11 and CYP3A, but not that of CYP2C6. The alterations in enzymatic activity were accompanied by changes in the CYP protein and mRNA levels. In parallel, a decrease in the pituitary growth hormone-releasing hormone, and in serum growth hormone and corticosterone (but not T3 and T4) concentration was observed. After a 3-week administration period of CP-101,606 less changes were found. A decrease in the CYP3A enzyme activity and protein level was still maintained, though no change in the mRNA level was found. A slight decrease in the serum concentration of corticosterone was also maintained, while GH level returned to the control value. The obtained results imply engagement of the glutamatergic system in the neuroendocrine regulation of cytochrome P450 and potential involvement of drugs acting on NMDA receptors in metabolic drug–drug interactions.
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6
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Aizawa S, Gu T, Kaminoda A, Fujioka R, Ojima F, Sakata I, Sakai T, Ogoshi M, Takahashi S, Takeuchi S. Adenosine stimulates neuromedin U mRNA expression in the rat pars tuberalis. Mol Cell Endocrinol 2019; 496:110518. [PMID: 31344393 DOI: 10.1016/j.mce.2019.110518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/20/2019] [Accepted: 07/21/2019] [Indexed: 11/26/2022]
Abstract
Neuromedin U (NMU) shows circadian expression in the rat pars tuberalis (PT), and is known to be suppressed by melatonin. Here we examined the involvement of adenosine in the regulation of Nmu expression. We found that the rat PT expressed adenosine receptor A2b and that an adenosine receptor agonist, NECA, stimulated Nmu expression in brain slice cultures. In vitro promoter assays revealed that NECA stimulated Nmu promoter activity via a cAMP response element (CRE) in the presence of adenosine receptor A2b. NECA also increased the levels of phosphorylated CRE-binding protein. These findings suggest that adenosine stimulates Nmu expression by activating the cAMP signaling pathway through adenosine receptor A2b in the rat PT. This is the first report to demonstrate that Nmu expression in the PT is regulated by adenosine, which acts as an intravital central metabolic signal, in addition to melatonin, which acts as an external photoperiodic environmental signal.
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Affiliation(s)
- Sayaka Aizawa
- Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama, 700-8530, Japan.
| | - Tingting Gu
- Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama, 700-8530, Japan
| | - Arisa Kaminoda
- Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama, 700-8530, Japan
| | - Ryuya Fujioka
- Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama, 700-8530, Japan
| | - Fumiya Ojima
- Department of Natural Sciences and Biology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan
| | - Ichiro Sakata
- Area of Regulatory Biology, Division of Life Science, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakuraku, Saitama, 338-8570, Japan
| | - Takafumi Sakai
- Area of Regulatory Biology, Division of Life Science, Graduate School of Science and Engineering, Saitama University, 255 Shimo-ohkubo, Sakuraku, Saitama, 338-8570, Japan
| | - Maho Ogoshi
- Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama, 700-8530, Japan
| | - Sumio Takahashi
- Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama, 700-8530, Japan
| | - Sakae Takeuchi
- Department of Biology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kitaku, Okayama, 700-8530, Japan
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7
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Eskander EF, Abd-Rabou AA, Ahmed HH. The impact of digestive and colon drugs on the human hormones profile. Indian J Clin Biochem 2014; 28:413-7. [PMID: 24426246 DOI: 10.1007/s12291-013-0311-6] [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: 11/25/2012] [Accepted: 02/23/2013] [Indexed: 11/25/2022]
Abstract
Hormones play an important role in the digestive system. The main hormones that control digestion are gastrin, secretin, and cholecystokinin. Herein, the current study is concerned with assessing the effect of spasmo canulase and librax drugs on the human hormones profile. Blood samples were withdrawn from adult patients to measure serum FSH, E2, LH, prolactin, progesterone, DHEAS, testosterone, TSH, T3, T4, fasting insulin, and cortisol. All hormone concentrations were determined quantitatively using ELISA procedure. Intriguingly, the present study showed putative changes including thyroid and sex hormonal profiles. Eventually, we concluded that the prospective study could be important in drug dose optimization and providing new medical guidelines to avoid side effects that could harm patients.
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Affiliation(s)
- Emad F Eskander
- Hormones Department, Medical Research Division, National Research Centre, Cairo, 12622 Egypt
| | - Ahmed A Abd-Rabou
- Hormones Department, Medical Research Division, National Research Centre, Cairo, 12622 Egypt ; Center for Aging and Associated Diseases, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Sheikh Zayed District, 6th of October City, Giza, Egypt
| | - Hanaa H Ahmed
- Hormones Department, Medical Research Division, National Research Centre, Cairo, 12622 Egypt
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8
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Aizawa S, Sakata I, Nagasaka M, Higaki Y, Sakai T. Negative regulation of neuromedin U mRNA expression in the rat pars tuberalis by melatonin. PLoS One 2013; 8:e67118. [PMID: 23843987 PMCID: PMC3699551 DOI: 10.1371/journal.pone.0067118] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 05/15/2013] [Indexed: 11/19/2022] Open
Abstract
The pars tuberalis (PT) is part of the anterior pituitary gland surrounding the median eminence as a thin cell layer. The characteristics of PT differ from those of the pars distalis (PD), such as cell composition and gene expression, suggesting that the PT has a unique physiological function compared to the PD. Because the PT highly expresses melatonin receptor type 1, it is considered a mediator of seasonal and/or circadian signals of melatonin. Expression of neuromedin U (NMU) that is known to regulate energy balance has been previously reported in the rat PT; however, the regulatory mechanism of NMU mRNA expression and secretion in the PT are still obscure. In this study, we examined both the diurnal change of NMU mRNA expression in the rat PT and the effects of melatonin on NMU in vivo. In situ hybridization and quantitative PCR analysis of laser microdissected PT samples revealed that NMU mRNA expression in the PT has diurnal variation that is high during the light phase and low during the dark phase. Furthermore, melatonin administration significantly suppressed NMU mRNA expression in the PT in vivo. On the other hand, 48 h fasting did not have an effect on PT-NMU mRNA expression, and the diurnal change of NMU mRNA expression was maintained. We also found the highest expression of neuromedin U receptor type 2 (NMUR2) mRNA in the third ventricle ependymal cell layer, followed by the arcuate nucleus and the spinal cord. These results suggest that NMU mRNA expression in the PT is downregulated by melatonin during the dark phase and shows diurnal change. Considering that NMU mRNA in the PT showed the highest expression level in the brain, PT-NMU may act on NMUR2 in the brain, especially in the third ventricle ependymal cell layer, with a circadian rhythm.
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Affiliation(s)
- Sayaka Aizawa
- Area of Regulatory Biology, Division of Life Science, Graduate School of Science and Engineering, Saitama University, Sakuraku, Saitama, Japan
| | - Ichiro Sakata
- Area of Regulatory Biology, Division of Life Science, Graduate School of Science and Engineering, Saitama University, Sakuraku, Saitama, Japan
| | - Mai Nagasaka
- Area of Regulatory Biology, Division of Life Science, Graduate School of Science and Engineering, Saitama University, Sakuraku, Saitama, Japan
| | - Yuriko Higaki
- Area of Regulatory Biology, Division of Life Science, Graduate School of Science and Engineering, Saitama University, Sakuraku, Saitama, Japan
| | - Takafumi Sakai
- Area of Regulatory Biology, Division of Life Science, Graduate School of Science and Engineering, Saitama University, Sakuraku, Saitama, Japan
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Tsujino K, Narumi R, Masumoto KH, Susaki EA, Shinohara Y, Abe T, Iigo M, Wada A, Nagano M, Shigeyoshi Y, Ueda HR. Establishment of TSH β real-time monitoring system in mammalian photoperiodism. Genes Cells 2013; 18:575-88. [PMID: 23758111 PMCID: PMC3738941 DOI: 10.1111/gtc.12063] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 03/23/2013] [Indexed: 02/01/2023]
Abstract
Organisms have seasonal physiological changes in response to day length. Long-day stimulation induces thyroid-stimulating hormone beta subunit (TSHβ) in the pars tuberalis (PT), which mediates photoperiodic reactions like day-length measurement and physiological adaptation. However, the mechanism of TSHβ induction for day-length measurement is largely unknown. To screen candidate upstream molecules of TSHβ, which convey light information to the PT, we generated Luciferase knock-in mice, which quantitatively report the dynamics of TSHβ expression. We cultured brain slices containing the PT region from adult and neonatal mice and measured the bioluminescence activities from each slice over several days. A decrease in the bioluminescence activities was observed after melatonin treatment in adult and neonatal slices. These observations indicate that the experimental system possesses responsiveness of the TSHβ expression to melatonin. Thus, we concluded that our experimental system monitors TSHβ expression dynamics in response to external stimuli.
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Affiliation(s)
- Kaori Tsujino
- Laboratory for Systems Biology, RIKEN Center for Developmental Biology, Kobe, Hyogo 650-0047, Japan
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10
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Network of brain protein level changes in glutaminase deficient fetal mice. J Proteomics 2013; 80:236-49. [PMID: 23376484 DOI: 10.1016/j.jprot.2013.01.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 12/17/2012] [Accepted: 01/05/2013] [Indexed: 02/06/2023]
Abstract
Glutaminase is a multifunctional enzyme encoded by gene Gls involved in energy metabolism, ammonia trafficking and regeneration of neurotransmitter glutamate. To address the proteomic basis for the neurophenotypes of glutaminase-deficient mice, brain proteins from late gestation wild type, Gls+/- and Gls-/- male mice were subjected to two-dimensional gel electrophoresis, with subsequent identification by mass spectrometry using nano-LC-ESI-MS/MS. Protein spots that showed differential genotypic variation were quantified by immunoblotting. Differentially expressed proteins unambiguously identified by MS/MS included neurocalcin delta, retinol binding protein-1, reticulocalbin-3, cytoskeleton proteins fascin and tropomyosin alpha-4-chain, dihydropyrimidinase-related protein-5, apolipoprotein IV and proteins from protein metabolism proteasome subunits alpha type 2, type 7, heterogeneous nuclear ribonucleoprotein C1/C2 and H, voltage-gated anion-selective channel proteins 1 and 2, ATP synthase subunit β and transitional endoplasmic reticulum ATPase. An interaction network determined by Ingenuity Pathway Analysis revealed a link between glutaminase and calcium, Akt and retinol signaling, cytoskeletal elements, ATPases, ion channels, protein synthesis and the proteasome system, intermediary, nucleic acid and lipid metabolism, huntingtin, guidance cues, transforming growth factor beta-1 and hepatocyte nuclear factor 4-alpha. The network identified involves (a) cellular assembly and organization and (b) cell signaling and cell cycle, suggesting that Gls is crucial for neuronal maturation.
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Inoue M, Aizawa S, Higaki Y, Kawashima A, Koike K, Takagi H, Sakai T, Sakata I. Detailed morphogenetic analysis of the embryonic chicken pars tuberalis as glycoprotein alpha subunit positive region. J Mol Histol 2012; 44:401-9. [DOI: 10.1007/s10735-012-9479-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 12/17/2012] [Indexed: 11/29/2022]
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