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Nakahata N, Asano M, Abe N, Ejiri H, Ota H, Suzuki S, Sato A, Tazaki R, Nagamine N, Takahashi C, Yamaya Y, Iwadate M, Matsuzuka T, Ohira T, Yasumura S, Suzuki S, Furuya F, Shimura H, Suzuki S, Yokoya S, Ohto H, Kamiya K. Prevalence of thyroid diffuse goiter and its association with body mass index and the presence of cysts and nodules in children and adolescents: the Fukushima Health Management Survey. Endocr J 2024; 71:383-393. [PMID: 38369332 DOI: 10.1507/endocrj.ej23-0609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/20/2024] Open
Abstract
The main cause of diffuse thyroid goiter is autoimmune chronic thyroiditis, otherwise known as Hashimoto's thyroiditis. Thyroid hormones play pivotal roles in growth and development during childhood. However, the prevalence of diffuse goiter and the relationships between diffuse goiter, thyroid volume, cysts and nodules, and anthropometric measurements in children are not well known. Among 789,459 participants who participated in thyroid ultrasound examinations, 320,206 participants (male: 161,728; female: 158,478) aged 1-23 years were analyzed. Logistic regression analyses were conducted to calculate the odds ratios of the standard deviation score of body mass index (BMI-SDS), the SDS of bilateral width multiplied thickness area (BWTAR-SDS) as a provisional determination of thyroid volume, and the presence of nodules or cysts for positive diffuse goiter compared with negative diffuse goiter after correction for sex and age. The prevalence of diffuse goiter increased in a female-dominant manner with aging. Compared with the absence of diffuse goiter, the age- and sex-adjusted odds ratios (95% confidence intervals) for BMI-SDS (1 SD), BWTAR-SDS (1 SD), cysts, and nodules were 1.24 (1.21-1.27), 3.21 (3.13-3.29), 0.53 (0.50-0.58), and 1.38 (1.17-1.64), respectively. The odds ratios of nodules for positive diffuse goiter were 4.18 (1.08-16.08), 1.76 (1.01-3.07), 1.80 (1.32-2.45), and 1.34 (1.08-1.67) in the age groups 1-7, 8-11, 12-15, and 16-23 years, respectively. The age-dependent increase in the prevalence of diffuse goiter was independently associated with increased BMI and positive prevalence of nodules in young individuals.
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Affiliation(s)
- Nana Nakahata
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Mahiro Asano
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Norikazu Abe
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Haruka Ejiri
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Hisashi Ota
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Satoshi Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Thyroid and Endocrinology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Ayako Sato
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Rina Tazaki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Natsuki Nagamine
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Chisato Takahashi
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Laboratory Medicine, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Yukie Yamaya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Manabu Iwadate
- Department of Surgery, Minamisoma Municipal General Hospital, Fukushima 975-0033, Japan
| | - Takashi Matsuzuka
- Department of Head and Neck Surgery and Otolaryngology, Asahi University Hospital, Gifu 500-8856, Japan
| | - Tetsuya Ohira
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Seiji Yasumura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Public Health, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Satoru Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Thyroid and Endocrine Center, Fukushima Global Medical Science Center, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Fumihiko Furuya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Thyroid and Endocrinology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Hiroki Shimura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Laboratory Medicine, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Shinichi Suzuki
- Department of Thyroid Therapeutic Surgery, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan
| | - Susumu Yokoya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Hitoshi Ohto
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Kenji Kamiya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
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2
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Ohira T, Nagao M, Hayashi F, Shimura H, Suzuki S, Yasumura S, Takahashi H, Suzuki S, Iwadate M, Hosoya M, Sakai A, Ishikawa T, Furuya F, Suzuki S, Yokoya S, Ohto H, Kamiya K. Effects of Overweight on Risk of Thyroid Nodules in Children and Adolescents: The Fukushima Health Management Survey. J Clin Endocrinol Metab 2024:dgae161. [PMID: 38477491 DOI: 10.1210/clinem/dgae161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/14/2024] [Accepted: 03/11/2024] [Indexed: 03/14/2024]
Abstract
CONTEXT Examining how overweight/obesity impacts thyroid nodule development in children and adolescents by sex and age can speculate on the mechanism. OBJECTIVE We examined whether overweight in children and adolescents are associated with thyroid nodule development by sex and age. DESIGN Approximately 300,000 participants who underwent thyroid ultrasonography in the Fukushima Health Management Survey after a nuclear accident were enrolled. Those without nodules in the initial two examinations (1-3 and 4-5 years postaccident) were prospectively assessed for nodule development in the third examination (6-7 years postaccident) relative to baseline overweight status, with an average follow-up of 4.2 years. SETTING A population-based prospective cohort study. PARTICIPANTS The first and second thyroid examinations involved 299,939 and 237,691 participants, respectively, excluding those with thyroid nodules. After the third examination, 184,519 participants were finalized for analysis. MAIN OUTCOME MEASURES Multivariable-adjusted odds ratios of new detected thyroid nodules for overweight participants compared with normal-weight participants. RESULTS New thyroid nodules were detected in 660 participants. Being overweight was positively associated with thyroid nodules. The adjusted odds ratio (95% confidence interval) of thyroid nodules for overweight participants compared with other participants was 1.27 (1.04-1.57). Additionally, the multivariable-adjusted odds ratios for males and females with overweight were 1.21 and 1.32, respectively, and those for different age groups (0-9, 10-14, and 15-19 years) ranged from 1.17 to 1.75. CONCLUSIONS Being overweight was associated with thyroid nodules in children and adolescents, mostly adolescent females, regardless of their proximity to the nuclear power plant.
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Affiliation(s)
- Tetsuya Ohira
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Masanori Nagao
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Fumikazu Hayashi
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hiroki Shimura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Laboratory Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Satoru Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Seiji Yasumura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Public Health, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hideto Takahashi
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Teikyo Heisei University, School of Pharmacy, Center for Education and Research in Social Pharmacy, Tokyo, Japan
| | - Satoshi Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Thyroid and Endocrinology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Manabu Iwadate
- Department of Thyroid and Endocrinology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Mitsuaki Hosoya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Akira Sakai
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Radiation Life Sciences, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tetsuo Ishikawa
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Radiation Physics and Chemistry, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Fumihiko Furuya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Department of Thyroid and Endocrinology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shinichi Suzuki
- Department of Thyroid Therapeutic Surgery, Fukushima Medical University, Fukushima, Japan
| | - Susumu Yokoya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Hitoshi Ohto
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Kenji Kamiya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
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3
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Ishii T, Miyasato Y, Ichijo M, Uchimura K, Furuya F. Membrane protease prostasin promotes insulin secretion by regulating the epidermal growth factor receptor pathway. Sci Rep 2023; 13:9086. [PMID: 37277555 DOI: 10.1038/s41598-023-36326-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 06/01/2023] [Indexed: 06/07/2023] Open
Abstract
Prostasin (PRSS8) is a serine protease that metabolizes and moderates the effect of specific substrates. Epidermal growth factor receptor (EGFR), which modulates insulin secretion and pancreatic β-cell proliferation, is regulated via proteolytic shedding by PRSS8. We first detected PRSS8 expression in β-cells of pancreatic islets of mice. To better understand the molecular processes involved in PRSS8-associated insulin secretion, pancreatic β-cell-specific PRSS8 knockout (βKO) and PRSS8-overexpressing (βTG) male mice were generated. We found that glucose intolerance and reduction in glucose-stimulated insulin secretion developed in βKO mice compared with the control subjects. A higher response to glucose was noted in islets retrieved from βTG mice. Erlotinib, a specific blocker of EGFR, blocks EGF- and glucose-stimulated secretion of insulin among MIN6 cells, and glucose improves EGF release from β-cells. After silencing PRSS8 in MIN6 cells, glucose-stimulated insulin secretion decreased, and EGFR signaling was impaired. Conversely, overexpression of PRSS8 in MIN6 cells induced higher concentrations of both basal and glucose-stimulated insulin secretion and increased phospho-EGFR concentrations. Furthermore, short-term exposure to glucose improved the concentration of endogenous PRSS8 in MIN6 cells through inhibition of intracellular degradation. These findings suggest that PRSS8 is involved in glucose-dependent physiological regulation of insulin secretion via the EGF-EGFR signaling pathway in pancreatic β-cells.
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Grants
- 17K16145 Japan Society for the Promotion of Science, KAKENHI
- 19K17958 Japan Society for the Promotion of Science, KAKENHI
- 21K16367 Japan Society for the Promotion of Science, KAKENHI
- 17K16145 Japan Society for the Promotion of Science, KAKENHI
- 19K17958 Japan Society for the Promotion of Science, KAKENHI
- 21K16367 Japan Society for the Promotion of Science, KAKENHI
- 17K16145 Japan Society for the Promotion of Science, KAKENHI
- 19K17958 Japan Society for the Promotion of Science, KAKENHI
- 21K16367 Japan Society for the Promotion of Science, KAKENHI
- 17K16145 Japan Society for the Promotion of Science, KAKENHI
- 19K17958 Japan Society for the Promotion of Science, KAKENHI
- 21K16367 Japan Society for the Promotion of Science, KAKENHI
- 17K16145 Japan Society for the Promotion of Science, KAKENHI
- 19K17958 Japan Society for the Promotion of Science, KAKENHI
- 21K16367 Japan Society for the Promotion of Science, KAKENHI
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Affiliation(s)
- Toshihisa Ishii
- Division of Nephrology, University of Yamanashi, Yamanashi, 409-3898, Japan
| | - Yoshikazu Miyasato
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, 860-8556, Japan
| | - Masashi Ichijo
- Department of Diabetes and Endocrinology, Matsumoto National Hospital, Matsumoto, Japan
| | - Kohei Uchimura
- Division of Nephrology, University of Yamanashi, Yamanashi, 409-3898, Japan.
| | - Fumihiko Furuya
- Division of Nephrology, University of Yamanashi, Yamanashi, 409-3898, Japan
- Department of Thyroid and Endocrinology, Fukushima Medical University, Fukushima, Japan
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Ejiri H, Asano M, Nakahata N, Suzuki S, Sato A, Nagamine N, Takahashi C, Yamaya Y, Iwadate M, Matsuzuka T, Ohira T, Yasumura S, Suzuki S, Furuya F, Shimura H, Suzuki S, Yokoya S, Ohto H, Kamiya K. Ultrasonography-based reference values for the cross-sectional area of the thyroid gland in children and adolescents: The Fukushima Health Management Survey. Clin Pediatr Endocrinol 2023; 32:52-57. [PMID: 36761492 PMCID: PMC9887296 DOI: 10.1297/cpe.2022-0057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/19/2022] [Indexed: 11/06/2022] Open
Abstract
We previously described the thyroid volume, which was calculated by measuring the thyroid width, thickness, and longitudinal length using ultrasonography, in children and adolescents. We have proposed a simplified method for quantitatively assessing the thyroid size, to overcome the inaccuracy and challenges in measuring the longitudinal length of the thyroid. Based on measurements of 317,847 (girls: 156,913, boys: 160,934) children and adolescents, we calculated sex-specific means and standard deviations of thyroid width and thickness, and of the cross-sectional area computed by multiplying them, for every age and 0.1 m2 of body surface area, after ensuring normal distribution with Box-Cox transformation. Multivariate regression analysis revealed that female sex, age, and body surface area were independently associated with areas of each thyroid lobe. Our novel method may be useful in quantitatively assessing the thyroid size, and appropriately diagnosing pathological conditions, such as hypoplasia, atrophy, and enlargement of the thyroid gland, in children and adolescents.
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Affiliation(s)
- Haruka Ejiri
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Mahiro Asano
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Nana Nakahata
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Satoshi Suzuki
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Thyroid and Endocrinology, Fukushima Medical
University School of Medicine, Fukushima, Japan
| | - Ayako Sato
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Natsuki Nagamine
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Chisato Takahashi
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Laboratory Medicine, Fukushima Medical
University School of Medicine, Fukushima, Japan
| | - Yukie Yamaya
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Manabu Iwadate
- Department of Surgery, Minamisoma Municipal General Hospital,
Fukushima, Japan
| | - Takashi Matsuzuka
- Department of Head and Neck Surgery and Otolaryngology, Asahi
University Hospital, Gifu, Japan
| | - Tetsuya Ohira
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Epidemiology, Fukushima Medical University
School of Medicine, Fukushima, Japan
| | - Seiji Yasumura
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Public Health, Fukushima Medical University
School of Medicine, Fukushima, Japan
| | - Satoru Suzuki
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Thyroid and Endocrinology, Division of Internal
Medicine, Fukushima Medical University Hospital, Fukushima, Japan
| | - Fumihiko Furuya
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Thyroid and Endocrinology, Fukushima Medical
University School of Medicine, Fukushima, Japan
| | - Hiroki Shimura
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan,Department of Laboratory Medicine, Fukushima Medical
University School of Medicine, Fukushima, Japan
| | - Shinichi Suzuki
- Department of Thyroid Therapeutic Surgery, Fukushima Medical
University, Fukushima, Japan
| | - Susumu Yokoya
- Thyroid and Endocrine Center, Fukushima Global Medical
Science Center, Fukushima Medical University, Fukushima, Japan
| | - Hitoshi Ohto
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan
| | - Kenji Kamiya
- Radiation Medical Science Center for the Fukushima Health
Management Survey, Fukushima Medical University, Fukushima, Japan,Research Institute for Radiation Biology and Medicine,
Hiroshima University, Hiroshima, Japan
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5
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Suzuki S, Suzuki S, Iwadate M, Matsuzuka T, Shimura H, Ohira T, Furuya F, Suzuki S, Yasumura S, Yokoya S, Ohto H, Kamiya K. Possible Association Between Thyroid Nodule Formation and Developmental Alterations in the Pituitary-Thyroid Hormone Axis in Children and Adolescents: The Fukushima Health Management Survey. Thyroid 2022; 32:1316-1327. [PMID: 36066342 PMCID: PMC9700379 DOI: 10.1089/thy.2022.0327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: We previously found low thyrotropin (TSH) levels in children and adolescents with thyroid nodules, including papillary thyroid cancer, although it is generally accepted that high TSH levels are a risk factor for formation and growth of thyroid nodules in adults. To clarify the reasons for the discrepancy, we precisely analyzed the features of pituitary-thyroid hormone (TH) actions in children and adolescents with or without nodules at different ages. Methods: Among the 4955 participants who participated in a second screening by thyroid ultrasound examination in the Fukushima Health Management Survey, 721 and 2849 euthyroid participants aged 6-20 years without or with nodules, including thyroid cancer, were selected for evaluation of TH regulation. The responsivity of TSH to THs was assessed by two thyroid feedback quantile-based indices (T4FQI and T3FQI). Logistic regression analyses were conducted to calculate the odds ratios (ORs) of serum concentrations related to thyroid functions for positive thyroid nodules compared with negative nodules. Results: The feedback indices declined in a sex-specific manner with aging. In particular, T3FQI, the index for TSH response to free triiodothyronine (fT3), started to decline after ∼10 and 15 years of age in female and male participants, respectively. Compared with the absence of nodules, the age- and sex-adjusted ORs (confidence intervals) for logTSH, free thyroxine (fT4), fT3, T4FQI, T3FQI, and thyroglobulin levels were 0.586 (0.501-0.685), 1.036 (0.595-1.805), 1.059 (0.842-1.332), 0.569 (0.454-0.715), 0.564 (0.443-0.719), and 1.01 (1.005-1.014), respectively. Associations between the presence of nodules and either low logTSH or low feedback indices were observed in participants aged between 12 and 17 years among the total cohort. Conclusions: The relationships between the levels of TSH and THs changed in a sex-dependent manner in children and adolescents. The age-dependent shift in the pituitary-TH set point may be associated with age-dependent nodule formation during restricted periods of growth and maturation in both young female and male participants.
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Affiliation(s)
- Satoshi Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
- Division of Internal Medicine, Department of Thyroid and Endocrinology, Fukushima Medical University Hospital, Fukushima City, Japan
- Department of Thyroid and Endocrinology, School of Medicine, Fukushima Medical University, Fukushima City, Japan
| | - Satoru Suzuki
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
- Division of Internal Medicine, Department of Thyroid and Endocrinology, Fukushima Medical University Hospital, Fukushima City, Japan
- Address correspondence to: Satoru Suzuki, MD, PhD, Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, 1 Hikarigaoka, Fukushima City 960-1295, Japan
| | - Manabu Iwadate
- Department of Surgery, Minamisoma Municipal General Hospital, Fukushima, Japan
| | - Takashi Matsuzuka
- Department of Otolaryngology, School of Medicine, Asahi University, Mizuho, Japan
| | - Hiroki Shimura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
- Department of Laboratory Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Tetsuya Ohira
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
- Department of Epidemiology, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Fumihiko Furuya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
- Division of Internal Medicine, Department of Thyroid and Endocrinology, Fukushima Medical University Hospital, Fukushima City, Japan
- Department of Thyroid and Endocrinology, School of Medicine, Fukushima Medical University, Fukushima City, Japan
| | - Shinichi Suzuki
- Department of Thyroid Therapeutic Surgery, Fukushima Medical University, Fukushima, Japan
| | - Seiji Yasumura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
- Department of Public Health, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Susumu Yokoya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
- Thyroid and Endocrine Center, Fukushima Global Medical Science Center, Fukushima Medical University, Fukushima, Japan
| | - Hitoshi Ohto
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
| | - Kenji Kamiya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima City, Japan
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
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Affiliation(s)
- Keiichi Osano
- Department of Nephrology, University of Yamanashi Hospital, Japan
| | - Shunichiro Hanai
- Department of Rheumatology, University of Yamanashi Hospital, Japan
| | - Kazuya Takahashi
- Department of Nephrology, University of Yamanashi Hospital, Japan
| | - Fumihiko Furuya
- Department of Nephrology, University of Yamanashi Hospital, Japan
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7
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Kobayashi H, Uchimura K, Ishii T, Takahashi K, Mori K, Tsuchiya K, Furuya F. Intelectin1 ameliorates macrophage activation via inhibiting the nuclear factor kappa B pathway. Endocr J 2022; 69:539-546. [PMID: 34866068 DOI: 10.1507/endocrj.ej21-0438] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Inteletin1 (Itln1) is an adipokine that is abundantly expressed in intestine, ovary, and lung. The expression levels of ITLN1 are decreased in the presence of diabetes or obesity, but the mechanisms of its production and function are still controversial. The aim of this study is to elucidate the mechanisms of ITLN1 synthesis and ITLN1-associated macrophage activation. To analyze the effects of high fat and high-carbohydrate diet (HFHCD) on the expression of ITLN1 in the intestine, the mice were fed a HFHCD for 8 weeks. HFHCD feeding enhanced the endoplasmic reticulum (ER)-stress in the intestine and inhibited the expression of Itln1 in the intestinal endocrine cells and lowered circulating ITLN1 levels. In contrast, treatment with a chemical chaperone and reduction of ER-stress restored the expression of Itln1 in the intestine of HFHCD-fed mice. Furthermore, in vitro studies indicated that ITLN1 physically interacts with adiponectin receptor 1 and suppresses lipopolysaccharide-induced mRNA expressions of pro-inflammatory cytokines and phagocytosis activities via inhibition of the nuclear factor kappa B-signaling pathway in macrophages. These results suggest that diet-induced ER-stress decreases circulating ITLN1 via inhibition of its synthesis in the intestine, and a reduction of circulating ITLN1 might enhanced the expression of proinflammatory cytokines and macrophage activation, following exacerbate the chronic inflammation of metabolic syndrome.
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Affiliation(s)
| | - Kohei Uchimura
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Toshihisa Ishii
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Kazuya Takahashi
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Kentaro Mori
- Department of Developmental Biology, Washington University in St. Louis School of Medicine, MO, U.S.A
| | - Kyoichiro Tsuchiya
- Department of Diabetes and Endocrinology, University of Yamanashi Hospital, Yamanashi, Japan
| | - Fumihiko Furuya
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
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Yamaguchi Y, Uchimura K, Takahashi K, Ishii T, Hanai S, Furuya F. Hyperthyroidism exacerbates ischemic reperfusion injury in the kidney. Endocr J 2022; 69:263-272. [PMID: 34629337 DOI: 10.1507/endocrj.ej21-0395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Thyroid hormones are critical regulators of vertebrate development and metabolism. Under hyperthyroid conditions, excess thyroid hormones induce expression of several enzymes and activities via activation of ligand-bound thyroid hormone receptors (TRs). Arginase (ARG) is downstream of a ligand-bound TR and overexpression of ARG2 induces the production of reactive oxygen species and subsequent exacerbation of kidney ischemia/reperfusion (I/R) injury. To clarify the association between I/R-induced kidney injury and hyperthyroidism, mice were pretreated with L-thyroxine (LT4) or vehicle alone, then subjected to I/R. Proximal tubular cell-specific conditional knockout of thyroid hormone receptor β (TRβcKO) mice was generated and the effects of I/R were analyzed. Hyperthyroidism enhanced tubular damage and fibrosis in the kidneys of mice after I/R. Hyperthyroidism induced tubular cell necroptosis following inflammatory cell accumulation in the kidney after I/R. ARG2 expressions and reactive oxygen species accumulated in the kidneys of hyperthyroid mice after I/R, but these changes were ameliorated in the kidneys of TRβcKO mice. Hyperthyroidism-enhanced kidney injury was ameliorated in the kidney of TRβcKO mice after I/R. These results suggest that excess thyroid hormones are disadvantageous for the kidney under ischemic stress. Overt hypothyroidism represents a severe thyroid hormone deficiency disease that requires LT4 treatment, while overreplacement or iatrogenic thyrotoxicosis might cause kidney injury.
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Affiliation(s)
- Yasuno Yamaguchi
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Kohei Uchimura
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Kazuya Takahashi
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Toshihisa Ishii
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Shunichiro Hanai
- Division of Rheumatology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Fumihiko Furuya
- Division of Nephrology, Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
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9
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Hanai S, Uchimura K, Takahashi K, Ishii T, Mitsui T, Furuya F. Hypoxia-induced thyroid hormone receptor expression regulates cell-cycle progression in renal tubule epithelial cells. Endocr J 2021; 68:1309-1320. [PMID: 34108302 DOI: 10.1507/endocrj.ej21-0245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Hypoxia occurs in the kidneys of chronic kidney disease (CKD) patients, inducing interstitial fibrosis and tubule cell death. Renal tubule cell death is an important determinant of mortality in CKD. We focused on the regulation of cell-cycle-mediated protein expression to prevent cell death under chronic hypoxia in the kidneys of CKD patients. Paraffin-embedded kidney sections from patients with CKD (diabetes nephropathy, nephrosclerosis, or IgA nephropathy) were analyzed for the expression of hypoxia-inducible factor (HIF), thyroid hormone receptor (TR) β, or p21 and levels of interstitial fibrosis. Human renal proximal tubule cells were exposed to hypoxia and analyzed for the expression of HIF, TRβ, or p21 and the cell-cycle stage. TRβ expression was enhanced early on when fibrosis was not fully developed in the tubule cells of CKD patients. HIF1α bound to the TRβ promoter and directly induced its transcription. Further, HIF1α expression induced the expression of TRβ and inhibited cell-cycle progression. In the early stage of kidney injury, TRβ might act as a guardian to prepare and organize cell-cycle proliferation and prevent cell death. While the molecular mechanism that regulates the expression of cell-cycle regulators in renal tubule cells remains controversial, TRβ has strong potential as a new therapeutic target.
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Affiliation(s)
- Shunichiro Hanai
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Kohei Uchimura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Kazuya Takahashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Toshihisa Ishii
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Takahiko Mitsui
- Department of Urology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
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10
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Horiguchi K, Yoshida Y, Iwaku K, Emoto N, Kasahara T, Sato J, Shimura H, Shindo H, Suzuki S, Nagano H, Furuya F, Makita N, Matsumoto F, Manaka K, Mitsutake N, Miyakawa M, Yokoya S, Sugitani I. Position paper from the Japan Thyroid Association task force on the management of low-risk papillary thyroid microcarcinoma (T1aN0M0) in adults. Endocr J 2021; 68:763-780. [PMID: 33762511 DOI: 10.1507/endocrj.ej20-0692] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The incidence of thyroid carcinoma has been increasing worldwide. This is interpreted as an increase in the incidental detection of papillary thyroid microcarcinomas (PTMCs). However, mortality has not changed, suggesting overdiagnosis and overtreatment. Prospective clinical trials of active surveillance for low-risk PTMC (T1aN0M0) have been conducted in two Japanese institutions since the 1990s. Based on the favorable outcomes of these trials, active surveillance has been gradually adopted worldwide. A task force on the management of PTMC in adults organized by the Japan Thyroid Association therefore conducted a systematic review and has produced the present position paper based on the scientific evidence concerning active surveillance. This paper indicates evidence for the increased incidence of PTMC, favorable surgical outcomes for low-risk PTMC, recommended criteria for diagnosis using fine needle aspiration cytology, and evaluation of lymph node metastasis (LNM), extrathyroidal extension (ETE) and distant metastasis. Active surveillance has also been reported with a low incidence of disease progression and no subsequent recurrence or adverse events on survival if conversion surgery was performed at a slightly advanced stage. Active surveillance is a safe and valid strategy for PTMC, because it might preserve physical quality of life and reduce 10-year medical costs. However, some points should be noted when performing active surveillance. Immediate surgery is needed for PTMC showing high-risk features, such as clinical LNM, ETE or distant metastasis. Active surveillance should be performed under an appropriate medical team and should be continued for life.
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Affiliation(s)
- Kazuhiko Horiguchi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Yusaku Yoshida
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo 162-8666, Japan
| | - Kenji Iwaku
- Sapporo Thyroid Clinic (Ito Hospital), Sapporo 060-0042, Japan
| | - Naoya Emoto
- Diabetes & Thyroid Clinic, Sakura Chuo Hospital, Sakura 285-0014, Japan
| | | | - Junichiro Sato
- Department of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Hiroki Shimura
- Department of Laboratory Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Hisakazu Shindo
- Department of Surgery, Yamashita Thyroid Hospital, Fukuoka 812-0034, Japan
| | - Satoru Suzuki
- Department of Thyroid and Endocrinology, Division of Internal Medicine, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
| | - Hidekazu Nagano
- Department of Molecular Diagnosis, Graduate school of Medicine, Chiba University, Chiba 260-8670, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3998, Japan
| | - Noriko Makita
- Department of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Fumihiko Matsumoto
- Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 113-8421, Japan
| | - Katsunori Manaka
- Department of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Norisato Mitsutake
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan
| | - Megumi Miyakawa
- Department of Internal Medicine, Miyakawa Hospital, Kawasaki 210-0802, Japan
| | - Susumu Yokoya
- Thyroid and Endocrine Center, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Iwao Sugitani
- Department of Endocrine Surgery, Nippon Medical School Graduate School of Medicine, Tokyo 113-8603, Japan
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11
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Abstract
Membranous nephropathy (MN) with anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (ANCA-GN) is seen infrequently. Previous reports of patients with ANCA-GN with MN showed that the most frequent ANCA subtype was myeloperoxidase-ANCA. We herein present a 73-year-old woman with scleritis, hematuria, proteinuria, and positive serum proteinase 3 (PR3)-ANCA. She underwent a renal biopsy and was diagnosed with MN and ANCA-GN. Immunofluorescence staining for PR3 colocalized with IgG along the glomerular basement membrane were observed. Oral prednisolone and intravenous rituximab therapy immediately improved her symptoms and urinalysis abnormalities. PR3-ANCA may be involved in the pathogenesis of MN via the formation of immune complexes.
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Affiliation(s)
- Shun Yoshida
- Third Department of Internal Medicine, University of Yamanashi, Japan
| | - Shunichiro Hanai
- Third Department of Internal Medicine, University of Yamanashi, Japan
| | - Daiki Nakagomi
- Third Department of Internal Medicine, University of Yamanashi, Japan
| | - Kei Kobayashi
- Third Department of Internal Medicine, University of Yamanashi, Japan
| | - Kazuya Takahashi
- Third Department of Internal Medicine, University of Yamanashi, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, University of Yamanashi, Japan
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Ito Y, Kaneko H, Sasaki Y, Ohana N, Ichijo M, Furuya F, Suzuki S, Suzuki S, Shimura H. Calcitonin levels by ECLIA correlate well with RIA values in higher range but are affected by sex, TgAb, and renal function in lower range. Endocr J 2020; 67:759-770. [PMID: 32269183 DOI: 10.1507/endocrj.ej19-0610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Calcitonin (CT) is a marker for both initial diagnosis and monitoring of patients with residual or recurrent medullary thyroid carcinoma (MTC). In Japan, serum CT had been measured by radioimmunoassay (RIA) until recently. Electrochemiluminescence immunoassay (ECLIA) became commercially available in 2014, and this technique is now the only method used to examine CT concentration. The purposes of this study were to investigate the correlations between the CT concentration measured with ECLIA (ECLIA-CT) and RIA (RIA-CT) and to explore the clinical characteristics of patients with elevated ECLIA-CT. CT concentrations of 348 sera samples from 334 patients with various thyroid disorders including nine MTC were measured using both assays. The correlation analysis revealed an excellent correlation between ECLIA-CT and RIA-CT among the cases with CT level >150 pg/mL by both assays (rs = 0.991, p < 0.001). However, 63% of all samples exhibited undetectable ECLIA-CT, while their RIA-CTs were measured between 15 and 152 pg/mL. The ECLIA-CTs in all patients who underwent total thyroidectomy for non-MTC showed low concentrations. High ECLIA-CT was observed in patients with MTC or pancreas neuroendocrine tumor. ECLIA-CT was also increased in 14 other male patients with non-MTC, including four with renal failure. Multivariate logistic regression analysis showed that male sex, negative TgAb, and lower estimated glomerular filtration rate were independent factors to predict detectable ECLIA-CT (≥0.500 pg/mL). These results indicate that ECLIA-CT correlates well with RIA-CT in higher range and is affected by sex, TgAb, and renal function.
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Affiliation(s)
- Yuko Ito
- Department of Laboratory Medicine, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
- Thyroid and Endocrinology Center, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
| | - Hiromi Kaneko
- Department of Laboratory Medicine, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Clinical Laboratory Medicine, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
| | - Yoshikazu Sasaki
- Department of Clinical Laboratory Medicine, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
| | - Noboru Ohana
- Department of Laboratory Medicine, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
- Department of Clinical Laboratory Medicine, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
| | - Masashi Ichijo
- Third Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Satoru Suzuki
- Thyroid and Endocrinology Center, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
| | - Shinichi Suzuki
- Thyroid and Endocrinology Center, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
- Department of Thyroid and Endocrinology, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Hiroki Shimura
- Department of Laboratory Medicine, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
- Thyroid and Endocrinology Center, Fukushima Medical University Hospital, Fukushima 960-1295, Japan
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13
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Hayashida R, Tsuchiya K, Nakamura S, Harima N, Ichijo M, Furuya F, Kitamura K. Acute Kidney Injury with Hemolysis after Glycerin Enema-induced Rectal Injury in a Patient with Type 2 Diabetes. Intern Med 2020; 59:1659-1663. [PMID: 32269190 PMCID: PMC7402962 DOI: 10.2169/internalmedicine.4217-19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
A 66-year-old man with type 2 diabetes was admitted for glycemic control and weight loss. The rectal mucosa was unfortunately injured during glycerin enema administration in preparation for colonoscopy, after which dark red urine and renal dysfunction were observed. Considering the clinical diagnosis of glycerol-induced hemolysis and acute kidney injury, intravenous hydration and haptoglobin administration were started, which successfully treated the dark red urine and renal dysfunction. This case highlights the importance of appropriate glycerin enema administration and emphasizes the need to recognize glycerol-induced hemolysis and acute kidney injury as complications of glycerin enemas. This case also provides insight into glycerol-induced hemolysis and acute kidney injury as complications of glycerin enemas.
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Affiliation(s)
- Ryosuke Hayashida
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan
| | - Kyoichiro Tsuchiya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan
| | - Suguru Nakamura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan
| | - Noriyuki Harima
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan
| | - Masashi Ichijo
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan
| | - Kenichiro Kitamura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Japan
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14
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Furuya F, Konishi M, Kitamura K. SP432Omentin1 ameliorates hyperglycemia or hypoxia-induced podocyte dysfunction by activating AMP-activating protein kinase. Nephrol Dial Transplant 2019. [DOI: 10.1093/ndt/gfz103.sp432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Konishi M, Furuya F, Kitamura K. FP065Angiopoietin-like 2 regulates the progression of chronic kidney disease. Nephrol Dial Transplant 2019. [DOI: 10.1093/ndt/gfz106.fp065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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16
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Furuya F, Motosugi A, Haraguchi K, Hanai S, Ishii T, Yamaguchi Y, Kitamura K. Association between the Cardio-Ankle Vascular Index and Diabetes Mellitus-Related Peripheral Arterial Disease in Chronic Hemodialysis Patients. Blood Purif 2019; 47 Suppl 2:25-30. [PMID: 30943475 DOI: 10.1159/000496632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Peripheral arterial disease (PAD) has increased in association with the increase in the numbers of patients with kidney disease or diabetes. The aim of this study was to assess the prevalence of PAD in hemodialysis patients with diabetes. METHODS To examine the usefulness of the cardio-ankle vascular index (CAVI) to screen for the presence of PAD, cross-sectional studies of 100 patients undergoing chronic hemodialysis were performed. The CAVI and other inflammatory markers were evaluated. RESULTS The CAVI was markedly elevated in patients with a history of PAD or cardiovascular disease. When dialysis patients were classified on the basis of CAVI quartiles, increased CAVI was associated with other risk factors for PAD. CONCLUSION The prevalence of PAD is high in elderly diabetic patients on hemodialysis. The present findings suggest that the CAVI can be a useful index that predicts the occurrence of macrovascular complications in dialysis patients with diabetes.
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Affiliation(s)
- Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan,
| | | | | | - Shunichiro Hanai
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Toshihisa Ishii
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Yasuno Yamaguchi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Kenichiro Kitamura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
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17
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Ishii T, Furuya F, Takahashi K, Shikata M, Takamura T, Kobayashi H, Miyazaki A, Morinaga J, Terada K, Oike Y, Kanda E, Kitamura K. Angiopoietin-Like Protein 2 Promotes the Progression of Diabetic Kidney Disease. J Clin Endocrinol Metab 2019; 104:172-180. [PMID: 30137449 DOI: 10.1210/jc.2017-02705] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 08/14/2018] [Indexed: 12/18/2022]
Abstract
CONTEXT Angiopoietin-like protein 2 (ANGPTL2) is a circulating, proinflammatory protein. OBJECTIVE To examine the role of ANGPTL2 in the pathogenesis of diabetic kidney disease (DKD), we studied the epigenetic regulation of angptl2 expression in patients with diabetes. DESIGN, SETTING, PARTICIPANTS, AND INTERVENTION We determined the relationship between serum ANGPTL2 levels and the progression of DKD in cross-sectional (220 patients) and cohort (145 patients, 7-year follow-up) studies. Furthermore, we investigated the direct effect of ANGPTL2 on podocyte function. MAIN OUTCOMES The main outcome was progression of DKD. RESULTS We found that the expression of angptl2 was decreased by the methylation of its promoter region. Multivariate logistic regression analyses revealed that the baseline level of serum ANGPTL2 was an independent risk factor for the progression of DKD during follow-up periods. In cultured podocytes, ANGPTL2 directly increased albumin permeability through the translocation of zonula occludens-1 from the membrane to the cytosol via activation of focal adhesion kinase. CONCLUSIONS ANGPTL2 might be directly involved in podocyte dysfunction and independently associated with the progression of DKD stages.
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Affiliation(s)
- Toshihisa Ishii
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Kazuya Takahashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Miho Shikata
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Takeyuki Takamura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Hidetoshi Kobayashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Asako Miyazaki
- Kua-hause Isawa, Isawa Onsen Hospital, Fuefuki, Yamanashi, Japan
| | - Jun Morinaga
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kazutoyo Terada
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuichi Oike
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Eiichiro Kanda
- Department of Nephrology and Hypertension, Kawasaki Medical School, Okayama, Japan
| | - Kenichiro Kitamura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
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18
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Takamura T, Furuya F, Kitamura K. SP150SERUM IGA C3 RATIO MAY BE A USEFUL SEROLOGIC MARKER TO PREDICT REMISSION AND DISEASE PROGRESSION IN PATIENTS WITH ADULT ONSET IGA VASCULITIS. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.sp150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Takeyuki Takamura
- Third Department of Internal Medicine, University of Yamanashi, Yamanashi, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kenichiro Kitamura
- Third Department of Internal Medicine, University of Yamanashi, Yamanashi, Japan
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19
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Ohkoshi K, Takahashi K, Takamura T, Furuya F, Kitamura K. SP571SERUM FETUIN-A LEVELS ASSOCIATED WITH CARDIOVASCULAR DISEASE IN HEMODIALYSIS PATIENTS WITH DIABETES. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.sp571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Kie Ohkoshi
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
| | - Kazuya Takahashi
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
| | - Takeyuki Takamura
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
| | - Kenichiro Kitamura
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
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20
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Konishi M, Takahashi K, Takamura T, Furuya F, Kitamura K. FP158TONSILLAR EXPRESSION OF B-CELL ACTIVATING FACTORS AND GLUCOSE DEFICIENT IGA1 CORRELATES WITH DISEASE ACTIVITY OF IGA NEPHROPATHY. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Makiko Konishi
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
| | - Kazuya Takahashi
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
| | - Takeyuki Takamura
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
| | - Kenichiro Kitamura
- Third Department of Internal Medicine, University of Yamanashi, Chuo, Japan
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21
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Oku T, Furuya F, Kitamura K, Nishio Y. SP648RISK FACTORS OF TUBERCULOSIS IN THE PATIENTS WITH HEMODIALYSIS. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx154.sp648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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22
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Takamura T, Furuya F, Oku T, Kitamura K. MP026THYROID HORMONE REPRESSES THE ACTIVATION OF NF-κB PATHWAY AND AMELIORATES KIDNEY INJURY. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx161.mp026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Konishi M, Furuya F, Oku T, Takamura T, Kitamura K. MP507SERUM ANGIOPOIETIN LIKE 2 AND PROGRESSION OF DIABETIC NEPHROPATHY. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx174.mp507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Furuya F, Ishii T, Tamura S, Takahashi K, Kobayashi H, Ichijo M, Takizawa S, Kaneshige M, Suzuki-Inoue K, Kitamura K. The ligand-bound thyroid hormone receptor in macrophages ameliorates kidney injury via inhibition of nuclear factor-κB activities. Sci Rep 2017; 7:43960. [PMID: 28272516 PMCID: PMC5341020 DOI: 10.1038/srep43960] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 01/31/2017] [Indexed: 02/07/2023] Open
Abstract
In chronic kidney disease (CKD) patients, inflammation plays a pivotal role in the progression of renal fibrosis. Hypothyroidism is associated with an increased occurrence of atherosclerosis and inflammation, suggesting protective roles of thyroid hormones and their receptors against inflammatory processes. The contribution of thyroid hormone receptors to macrophage differentiation has not been well documented. Here, we focused on the endogenous thyroid hormone receptor α (TRα) in macrophages and examined the role of ligand-bound TRα in macrophage polarization-mediated anti-inflammatory effects. TRα-deficient irradiated chimeric mice showed exacerbated tubulointerstitial injury in a unilateral ureteral obstruction model. Compared with wild-type macrophages, macrophages isolated from the obstructed kidneys of mice lacking TRα displayed increased expression of proinflammatory cytokines that was accompanied by enhanced nuclear translocation of p65. Comparison of TRα-deficient bone marrow-derived macrophages with wild-type macrophages confirmed the propensity of the former cells to produce excessive IL-1β levels. Co-culture of these macrophages with renal epithelial cells induced more severe damage to the epithelial cells via the IL-1 receptor. Our findings indicate that ligand-bound TRα on macrophages plays a protective role in kidney inflammation through the inhibition of NF-κB pathways, possibly by affecting the pro- and anti-inflammatory balance that controls the development of CKD.
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Affiliation(s)
- Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Toshihisa Ishii
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Shogo Tamura
- Department of Laboratory and Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Kazuya Takahashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Hidetoshi Kobayashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Masashi Ichijo
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Soichi Takizawa
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Masahiro Kaneshige
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Katsue Suzuki-Inoue
- Department of Laboratory and Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
| | - Kenichiro Kitamura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 4093898, Japan
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Akiyama D, Furuya F, Wakasugi M, Kitamura K. SP337EFFICACY OFFEBUXOSTAT IN TYPE 2 DIABETIC PATIENTS WITH KIDNEY IMPAIRMENT. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw167.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shikata MI, Furuya F, Kitamura K. MP007THYROID HORMONE RECEPTOR ON MACROPHAGES AMELIORATE IL1 RECEPTOR-ASSOCIATED KIDNEY FIBROSIS. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw181.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Takeda-Koh R, Furuya F, Kobayashi H, Kitamura K. SP386ASSOCIATION OF SERUM OMENTIN WITH A MARKER OF PROGRESSION OF DIABETIC NEPHROPATHY. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw169.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nara K, Furuya F, Haraguchi K, Kitamura K. SP566SKIN AUTOFLUORESCENCE IS A PREDICTOR OF CARDIOVASCULAR DISEASE IN CHRONIC KIDNEY DISEASE PATIENTS. Nephrol Dial Transplant 2015. [DOI: 10.1093/ndt/gfv197.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ishii T, Kobayashi H, Furuya F, Kitamura K. FP313DICREASED SERUM OMENTIN IS ASSOCIATED WITH RISK OF CADIORENAL DYSFUNCTION IN DIABETES PATIENTS. Nephrol Dial Transplant 2015. [DOI: 10.1093/ndt/gfv174.48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mori Y, Tomonaga D, Kalashnikova A, Furuya F, Akimoto N, Ifuku M, Okuno Y, Beppu K, Fujita K, Katafuchi T, Shimura H, Churilov LP, Noda M. Effects of 3,3',5-triiodothyronine on microglial functions. Glia 2015; 63:906-20. [PMID: 25643925 DOI: 10.1002/glia.22792] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 01/02/2015] [Indexed: 02/02/2023]
Abstract
L-tri-iodothyronine (3, 3', 5-triiodothyronine; T3) is an active form of the thyroid hormone (TH) essential for the development and function of the CNS. Though nongenomic effect of TH, its plasma membrane-bound receptor, and its signaling has been identified, precise function in each cell type of the CNS remained to be investigated. Clearance of cell debris and apoptotic cells by microglia phagocytosis is a critical step for the restoration of damaged neuron-glia networks. Here we report nongenomic effects of T3 on microglial functions. Exposure to T3 increased migration, membrane ruffling and phagocytosis of primary cultured mouse microglia. Injection of T3 together with stab wound attracted more microglia to the lesion site in vivo. Blocking TH transporters and receptors (TRs) or TRα-knock-out (KO) suppressed T3-induced microglial migration and morphological change. The T3-induced microglial migration or membrane ruffling was attenuated by inhibiting Gi /o -protein as well as NO synthase, and subsequent signaling such as phosphoinositide 3-kinase (PI3K), mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase (ERK). Inhibitors for Na(+) /K(+) -ATPase, reverse mode of Na(+) /Ca(2+) exchanger (NCX), and small-conductance Ca(2+) -dependent K(+) (SK) channel also attenuated microglial migration or phagocytosis. Interestingly, T3-induced microglial migration, but not phagocytosis, was dependent on GABAA and GABAB receptors, though GABA itself did not affect migratory aptitude. Our results demonstrate that T3 modulates multiple functional responses of microglia via multiple complex mechanisms, which may contribute to physiological and/or pathophysiological functions of the CNS.
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Affiliation(s)
- Yuki Mori
- Laboratory of Pathophysiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
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Ichijo S, Furuya F, Shimura H, Hayashi Y, Takahashi K, Ohta K, Kobayashi T, Kitamura K. Activation of the RhoB signaling pathway by thyroid hormone receptor β in thyroid cancer cells. PLoS One 2014; 9:e116252. [PMID: 25548921 PMCID: PMC4280201 DOI: 10.1371/journal.pone.0116252] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 12/05/2014] [Indexed: 11/19/2022] Open
Abstract
Thyroid hormone receptor (TR) mediates the crucial effects of the thyroid hormone (T3) on cellular growth, development, and differentiation. Decreased expression or inactivating somatic mutations of TRs have been found in human cancers of the liver, breast, lung, and thyroid. The mechanisms of TR-associated carcinogenesis are still not clear. To establish the function of TRβ in thyroid cancer cell proliferation, we constructed a recombinant adenovirus vector, AdTRβ, which expresses human TRβ1 cDNA. Thyroid cancer cell lines in which TRβ protein levels were significantly decreased as compared to intact thyroid tissues were infected with AdTRβ and the function of TRβ on cell proliferation and migration was analyzed. Ligand-bound TRβ induced HDAC1 and HDAC3 dissociation from, and histone acetylation associated with the RhoB promoter and enhanced the expression of RhoB mRNA and protein. In AdTRβ-infected cells, T3 and farnesyl transferase inhibitor (FTI)-treatment induced the distribution of RhoB on the cell membrane and enhanced the abundance of active GTP-bound RhoB. This RhoB protein led to p21-associated cell-cycle arrest in the G0/G1 phase, following inhibition of cell proliferation and invasion. Conversely, lowering cellular RhoB by small interfering RNA knockdown in AdTRβ-infected cells led to downregulation of p21 and inhibited cell-cycle arrest. The growth of BHP18-21v tumor xenografts invivo was significantly inhibited by AdTRβ injection with FTIs-treatment, as compared to control virus-injected tumors. This novel signaling pathway triggered by ligand-bound TRβ provides insight into possible mechanisms of proliferation and invasion of thyroid cancer and may provide new therapeutic targets for thyroid cancers.
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Affiliation(s)
- Sayaka Ichijo
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
- * E-mail:
| | - Hiroki Shimura
- Department of Laboratory Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yoshitaka Hayashi
- Department of Endocrinology and Metabolism, Division of Molecular and Cellular Adaptation, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
| | - Kazuya Takahashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Kazuyasu Ohta
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Tetsuro Kobayashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Kenichiro Kitamura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
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Furuya F, Shimura H, Takahashi K, Akiyama D, Motosugi A, Ikegishi Y, Haraguchi K, Kobayashi T. Skin autofluorescence is a predictor of cardiovascular disease in chronic kidney disease patients. Ther Apher Dial 2014; 19:40-4. [PMID: 25545539 DOI: 10.1111/1744-9987.12204] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Accelerated formation and tissue accumulation of advanced glycation end products (AGEs), reflecting cumulative glycemic and oxidative stress, occurs in age-related and chronic diseases like diabetes mellitus (DM) and renal failure, and contributes to vascular damage. Skin autofluorescence (AFR), a noninvasive measurement method, reflects tissue accumulation of AGEs. AFR has been reported to be an independent predictor of mortality in Caucasian hemodialysis patients. We assessed the relationship between levels of AFR and the prevalence of cardiovascular disease (CVD), and clarified the prognostic usefulness of skin AFR levels in Asian (non-Caucasian) hemodialysis (HD) patients. AFR was measured with an autofluorescence reader in 64 HD patients. Overall and cardiovascular mortality was monitored prospectively during the 3-year follow-up. During follow-up, CVD events occurred in 21 patients. The deaths of 10 HD patients were associated with CVD. Multivariate logistic regression analyses showed that initial AFR was an independent risk factor for de novo CVD in HD patients with or without diabetes. When patients were classified on the basis of AFR tertiles, Cochran-Armitage analysis demonstrated that the highest tertile of AFR level showed an increased odds ratio for the prevalence of CVD. These findings suggest that AFR levels can be used to detect the prevalence of CVD in HD patients with or without diabetes.
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Affiliation(s)
- Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Japan
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Aida K, Saitoh S, Nishida Y, Yokota S, Ohno S, Mao X, Akiyama D, Tanaka S, Awata T, Shimada A, Oikawa Y, Shimura H, Furuya F, Takizawa S, Ichijo M, Ichijo S, Itakura J, Fujii H, Hashiguchi A, Takasawa S, Endo T, Kobayashi T. Distinct cell clusters touching islet cells induce islet cell replication in association with over-expression of Regenerating Gene (REG) protein in fulminant type 1 diabetes. PLoS One 2014; 9:e95110. [PMID: 24759849 PMCID: PMC3997392 DOI: 10.1371/journal.pone.0095110] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 03/23/2014] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Pancreatic islet endocrine cell-supporting architectures, including islet encapsulating basement membranes (BMs), extracellular matrix (ECM), and possible cell clusters, are unclear. PROCEDURES The architectures around islet cell clusters, including BMs, ECM, and pancreatic acinar-like cell clusters, were studied in the non-diabetic state and in the inflamed milieu of fulminant type 1 diabetes in humans. RESULT Immunohistochemical and electron microscopy analyses demonstrated that human islet cell clusters and acinar-like cell clusters adhere directly to each other with desmosomal structures and coated-pit-like structures between the two cell clusters. The two cell-clusters are encapsulated by a continuous capsule composed of common BMs/ECM. The acinar-like cell clusters have vesicles containing regenerating (REG) Iα protein. The vesicles containing REG Iα protein are directly secreted to islet cells. In the inflamed milieu of fulminant type 1 diabetes, the acinar-like cell clusters over-expressed REG Iα protein. Islet endocrine cells, including beta-cells and non-beta cells, which were packed with the acinar-like cell clusters, show self-replication with a markedly increased number of Ki67-positive cells. CONCLUSION The acinar-like cell clusters touching islet endocrine cells are distinct, because the cell clusters are packed with pancreatic islet clusters and surrounded by common BMs/ECM. Furthermore, the acinar-like cell clusters express REG Iα protein and secrete directly to neighboring islet endocrine cells in the non-diabetic state, and the cell clusters over-express REG Iα in the inflamed milieu of fulminant type 1 diabetes with marked self-replication of islet cells.
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Affiliation(s)
- Kaoru Aida
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Sei Saitoh
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Yoriko Nishida
- Department of Nursing, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Sadanori Yokota
- Section of Functional Morphology, Faculty of Pharmaceutical Sciences, Nagasaki International University, Saseho, Nagasaki, Japan
| | - Shinichi Ohno
- Department of Anatomy and Molecular Histology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Xiayang Mao
- Department of Computer Science, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Daiichiro Akiyama
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Shoichiro Tanaka
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Takuya Awata
- Division of Endocrinology and Diabetes, Department of Medicine, Saitama Medical School, Moroyama, Saitama, Japan
| | - Akira Shimada
- Department of Internal Medicine, Saiseikai Central Hospital, Tokyo, Japan
| | - Youichi Oikawa
- Department of Internal Medicine, Saiseikai Central Hospital, Tokyo, Japan
| | - Hiroki Shimura
- Department of Laboratory Medicine, Fukushima Medical University, Fukushima, Fukushima, Japan
| | - Fumihiko Furuya
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Soichi Takizawa
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Masashi Ichijo
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Sayaka Ichijo
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Jun Itakura
- Department of Surgery I, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Hideki Fujii
- Department of Surgery I, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Akinori Hashiguchi
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Shin Takasawa
- Department of Biochemistry, Nara Medical University, Kashihara, Wakayama, Japan
| | - Toyoshi Endo
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Tetsuro Kobayashi
- Department of Internal Medicine III, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan
- * E-mail:
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Takahashi K, Furuya F, Shimura H, Kaneshige M, Kobayashi T. Impaired oxidative endoplasmic reticulum stress response caused by deficiency of thyroid hormone receptor α. J Biol Chem 2014; 289:12485-93. [PMID: 24644288 DOI: 10.1074/jbc.m113.544122] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Thyroid hormone receptor α (TRα) is critical to postnatal pancreatic β-cell maintenance. To investigate the association between TRα and the survival of pancreatic β-cells under endoplasmic reticulum (ER) stress, the expression of endogenous TRα was inhibited by infection with an adenovirus expressing double-stranded short hairpin RNA against TRα (AdshTRα). In control adenovirus-infected pancreatic β-cells, palmitate enhanced the expression of activating transcription factor 4 (ATF4) and heme oxygenase 1, which facilitates adaptation to oxidative ER stress. However, in AdshTRα-infected pancreatic β-cells, palmitate did not induce ATF4-mediated integrated stress response, and oxidative stress-associated apoptotic cell death was significantly enhanced. TRα-deficient mice or wild-type mice (WT) were fed a high fat diet (HFD) for 30 weeks, and the effect of oxidative ER stress on pancreatic β-cells was analyzed. HFD-treated TRα-deficient mice had high blood glucose levels and low plasma insulin levels. In HFD-treated TRα-deficient mice, ATF4 was not induced, and apoptosis was enhanced compared with HFD-treated WT mice. Furthermore, the expression level of 8-hydroxydeoxyguanosine, an oxidative stress marker, was enhanced in the β-cells of HFD-treated TRα-deficient mice. These results indicate that endogenous TRα plays an important role for the expression of ATF4 and facilitates reduced apoptosis in pancreatic β-cells under ER stress.
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Affiliation(s)
- Kazuya Takahashi
- From the Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo-shi, Yamanashi 409-3898, Japan and
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Furuya F, Shimura H, Asami K, Ichijo S, Takahashi K, Kaneshige M, Oikawa Y, Aida K, Endo T, Kobayashi T. Ligand-bound thyroid hormone receptor contributes to reprogramming of pancreatic acinar cells into insulin-producing cells. J Biol Chem 2013; 288:16155-66. [PMID: 23595988 DOI: 10.1074/jbc.m112.438192] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
One goal of diabetic regenerative medicine is to instructively convert mature pancreatic exocrine cells into insulin-producing cells. We recently reported that ligand-bound thyroid hormone receptor α (TRα) plays a critical role in expansion of the β-cell mass during postnatal development. Here, we used an adenovirus vector that expresses TRα driven by the amylase 2 promoter (AdAmy2TRα) to induce the reprogramming of pancreatic acinar cells into insulin-producing cells. Treatment with l-3,5,3-triiodothyronine increases the association of TRα with the p85α subunit of phosphatidylinositol 3-kinase (PI3K), leading to the phosphorylation and activation of Akt and the expression of Pdx1, Ngn3, and MafA in purified acinar cells. Analyses performed with the lectin-associated cell lineage tracing system and the Cre/loxP-based direct cell lineage tracing system indicate that newly synthesized insulin-producing cells originate from elastase-expressing pancreatic acinar cells. Insulin-containing secretory granules were identified in these cells by electron microscopy. The inhibition of p85α expression by siRNA or the inhibition of PI3K by LY294002 prevents the expression of Pdx1, Ngn3, and MafA and the reprogramming to insulin-producing cells. In immunodeficient mice with streptozotocin-induced hyperglycemia, treatment with AdAmy2TRα leads to the reprogramming of pancreatic acinar cells to insulin-producing cells in vivo. Our findings suggest that ligand-bound TRα plays a critical role in β-cell regeneration during postnatal development via activation of PI3K signaling.
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Affiliation(s)
- Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo-shi, Yamanashi 409-3898, Japan
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Aida K, Nishida Y, Tanaka S, Maruyama T, Shimada A, Awata T, Suzuki M, Shimura H, Takizawa S, Ichijo M, Akiyama D, Furuya F, Kawaguchi A, Kaneshige M, Itakura J, Fujii H, Endo T, Kobayashi T. RIG-I- and MDA5-initiated innate immunity linked with adaptive immunity accelerates beta-cell death in fulminant type 1 diabetes. Diabetes 2011; 60:884-9. [PMID: 21289206 PMCID: PMC3046849 DOI: 10.2337/db10-0795] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Accepted: 12/15/2010] [Indexed: 01/22/2023]
Abstract
OBJECTIVE The contribution of innate immunity responsible for aggressive β-cell destruction in human fulminant type 1 diabetes is unclear. RESEARCH DESIGN AND METHODS Islet cell expression of Toll-like receptors (TLRs), cytoplasmic retinoic acid-inducible gene I (RIG-I)-like receptors, downstream innate immune markers, adaptive immune mediators, and apoptotic markers was studied in three autopsied pancreata obtained 2 to 5 days after onset of fulminant type 1 diabetes. RESULTS RIG-I was strongly expressed in β-cells in all three pancreata infected with enterovirus. Melanoma differentiation-associated gene-5 was hyperexpressed in islet cells, including β- and α-cells. TLR3 and TLR4 were expressed in mononuclear cells that infiltrated islets. Interferon (IFN)-α and IFN-β were strongly expressed in islet cells. Major histocompatibility complex (MHC)-class I, IFN-γ, interleukin-18, and CXC motif ligand 10 were expressed and colocalized in affected islets. CD11c+ MHC-class II+ dendritic cells and macrophage subsets infiltrated most islets and showed remarkable features of phagocytosis of islet cell debris. CD4+ forkhead box P3+ regulatory T cells were not observed in and around the affected islets. Mononuclear cells expressed the Fas ligand and infiltrated most Fas-expressing islets. Retinoic acid-receptor responder 3 and activated caspases 8, 9, and 3 were preferentially expressed in β-cells. Serum levels of IFN-γ were markedly increased in patients with fulminant type 1 diabetes. CONCLUSIONS These findings demonstrate the presence of specific innate immune responses to enterovirus infection connected with enhanced adoptive immune pathways responsible for aggressive β-cell toxicity in fulminant type 1 diabetes.
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Affiliation(s)
- Kaoru Aida
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Yoriko Nishida
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Shoichiro Tanaka
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Taro Maruyama
- Department of Internal Medicine, Saitama Social Insurance Hospital, Saitama, Japan
| | - Akira Shimada
- Department of Internal Medicine, Keio University, Tokyo, Japan
| | - Takuya Awata
- Division of Endocrinology and Diabetes, Department of Medicine, Saitama Medical School, Saitama, Japan
| | - Masako Suzuki
- Department of Pathology, Sayama Hospital, Saitama, Japan
| | - Hiroki Shimura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Soichi Takizawa
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Masashi Ichijo
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Daiichiro Akiyama
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Akio Kawaguchi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Masahiro Kaneshige
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Jun Itakura
- First Department of Surgery, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Hideki Fujii
- First Department of Surgery, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Toyoshi Endo
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Tetsuro Kobayashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
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Furuya F, Shimura H, Yamashita S, Endo T, Kobayashi T. Liganded thyroid hormone receptor-alpha enhances proliferation of pancreatic beta-cells. J Biol Chem 2010; 285:24477-86. [PMID: 20529852 DOI: 10.1074/jbc.m109.100222] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Failure of the functional pancreatic beta-cell mass to expand in response to increased metabolic demand is a hallmark of type 2 diabetes. Lineage tracing studies indicate that replication of existing beta-cells is important for beta-cell proliferation in adult animals. In rat pancreatic beta-cell lines (RIN5F), treatment with 100 nM thyroid hormone (triiodothyronine, T(3)) enhances cell proliferation. This result suggests that T(3) is required for beta-cell proliferation or replication. To identify the role of thyroid hormone receptor alpha (TR(alpha)) in the processes of beta-cell growth and cell cycle regulation, we constructed a recombinant adenovirus vector, AdTR(alpha). Infection with AdTR(alpha) to RIN5F cells increased the expression of cyclin D1 mRNA and protein. Overexpression of the cyclin D1 protein in AdTR(alpha)-infected cells led to activation of the cyclin D1/cyclin-dependent kinase/retinoblastoma protein/E2F pathway, along with cell cycle progression and cell proliferation following treatment with 100 nM T(3). Conversely, lowering cellular cyclin D1 by small interfering RNA knockdown in AdTR(alpha)-infected cells led to down-regulation of the cyclin D1/CDK/Rb/E2F pathway and inhibited cell proliferation. Furthermore, in immunodeficient mice with streptozotocin-induced diabetes, intrapancreatic injection of AdTR(alpha) led to the restoration of islet function and to an increase in the beta-cell mass. These results support the hypothesis that liganded TR(alpha) plays a critical role in beta-cell replication and in expansion of the beta-cell mass during postnatal development. Thus, liganded TR(alpha) may be a target for therapeutic strategies that can induce the expansion and regeneration of beta-cells.
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Affiliation(s)
- Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo-shi, Yamanashi 409-3898, Japan
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Tanaka S, Nishida Y, Aida K, Maruyama T, Shimada A, Suzuki M, Shimura H, Takizawa S, Takahashi M, Akiyama D, Arai-Yamashita S, Furuya F, Kawaguchi A, Kaneshige M, Katoh R, Endo T, Kobayashi T. Enterovirus infection, CXC chemokine ligand 10 (CXCL10), and CXCR3 circuit: a mechanism of accelerated beta-cell failure in fulminant type 1 diabetes. Diabetes 2009; 58:2285-91. [PMID: 19641142 PMCID: PMC2750208 DOI: 10.2337/db09-0091] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Fulminant type 1 diabetes is characterized by the rapid onset of severe hyperglycemia and ketoacidosis, with subsequent poor prognosis of diabetes complications. Causative mechanisms for accelerated beta-cell failure are unclear. RESEARCH DESIGN AND METHODS Subjects comprised three autopsied patients who died from diabetic ketoacidosis within 2-5 days after onset of fulminant type 1 diabetes. We examined islet cell status, including the presence of enterovirus and chemokine/cytokine/major histocompatibility complex (MHC) expressions in the pancreata using immunohistochemical analyses and RT-PCR. RESULTS Immunohistochemical analysis revealed the presence of enterovirus-capsid protein in all three affected pancreata. Extensive infiltration of CXCR3 receptor-bearing T-cells and macrophages into islets was observed. Dendritic cells were stained in and around the islets. Specifically, interferon-gamma and CXC chemokine ligand 10 (CXCL10) were strongly coexpressed in all subtypes of islet cells, including beta-cells and alpha-cells. No CXCL10 was expressed in exocrine pancreas. Serum levels of CXCL10 were increased. Expression of MHC class II and hyperexpression of MHC class I was observed in some islet cells. CONCLUSIONS These results strongly suggest the presence of a circuit for the destruction of beta-cells in fulminant type 1 diabetes. Enterovirus infection of the pancreas initiates coexpression of interferon-gamma and CXCL10 in beta-cells. CXCL10 secreted from beta-cells activates and attracts autoreactive T-cells and macrophages to the islets via CXCR3. These infiltrating autoreactive T-cells and macrophages release inflammatory cytokines including interferon-gamma in the islets, not only damaging beta-cells but also accelerating CXCL10 generation in residual beta-cells and thus further activating cell-mediated autoimmunity until all beta-cells have been destroyed.
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Affiliation(s)
- Shoichiro Tanaka
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Yoriko Nishida
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Kaoru Aida
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Taro Maruyama
- Department of Internal Medicine, Saitama Social Insurance Hospital, Saitama, Japan
| | - Akira Shimada
- Department of Internal Medicine, Keio University, Tokyo, Japan
| | - Masako Suzuki
- Department of Pathology, Sayama Hospital, Saitama, Japan
| | - Hiroki Shimura
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Soichi Takizawa
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Masashi Takahashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Daiichiro Akiyama
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Sayaka Arai-Yamashita
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Fumihiko Furuya
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Akio Kawaguchi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Masahiro Kaneshige
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Ryohei Katoh
- Department of Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Toyoshi Endo
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Tetsuro Kobayashi
- Third Department of Internal Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
- Corresponding author: Tetsuro Kobayashi,
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Furuya F, Lu C, Guigon CJ, Cheng SY. Nongenomic activation of phosphatidylinositol 3-kinase signaling by thyroid hormone receptors. Steroids 2009; 74:628-34. [PMID: 19014961 PMCID: PMC3272696 DOI: 10.1016/j.steroids.2008.10.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2008] [Revised: 10/15/2008] [Accepted: 10/20/2008] [Indexed: 12/11/2022]
Abstract
Thyroid hormone (T3) is critical in growth, development, differentiation, and maintenance of metabolic homeostasis. Recent studies suggest that thyroid hormone receptors (TRs) not only mediate the biological activities of T3 via nucleus-initiated transcription, but also could act via nongenomic pathways. The striking phenotype of thyroid cancer exhibited by a knockin mutant mouse that harbors a dominant negative TRbeta mutant (TRbeta(PV/PV) mouse) allows the elucidation of novel oncogenic activity of a TRbeta mutant (PV) via extra-nuclear actions. PV physically interacts with the regulatory p85alpha subunit of phosphatidylinositol 3-kinase (PI3K) to activate the downstream AKT-mammalian target of rapamycin (mTOR) and p70(S6K) and PI3K-integrin-linked kinase-matrix metalloproteinase-2 signaling pathways. The PV-mediated PI3K activation results in increased cell proliferation, motility, migration, and metastasis. Remarkably, a nuclear receptor corepressor (NCoR) was found to regulate the PV-activated PI3K signaling by competing with PV for binding to the C-terminal SH2 domain of p85alpha. Over-expression of NCoR in thyroid tumor cells of TRbeta(PV/PV) mice reduces AKT-mTOR-p70(S6K) signaling. Conversely, lowering cellular NCoR by siRNA knockdown in tumor cells leads to over-activated PI3K-AKT signaling to increase cell proliferation and motility. Furthermore, NCoR protein levels are significantly lower in thyroid tumor cells than in wild type thyrocytes, allowing more effective binding of PV to p85alpha to activate PI3K signaling, thereby contributing to tumor progression. Thus, PV, an apo-TRbeta, could act via direct protein-protein interaction to mediate critical oncogenic actions. These studies also uncovered a novel extra-nuclear role of NCoR in modulating the nongenomic actions of a mutated TRbeta in controlling thyroid carcinogenesis.
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Affiliation(s)
- Fumihiko Furuya
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4264, USA
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Lu C, Willingham MC, Furuya F, Cheng SY. Activation of phosphatidylinositol 3-kinase signaling promotes aberrant pituitary growth in a mouse model of thyroid-stimulating hormone-secreting pituitary tumors. Endocrinology 2008; 149:3339-45. [PMID: 18356276 PMCID: PMC2453100 DOI: 10.1210/en.2007-1696] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
TSH-secreting pituitary tumors (TSHomas) are pituitary tumors that constitutively secrete TSH. Molecular mechanisms underlying this abnormality are largely undefined. We recently created a knock-in mutant mouse harboring a mutation (denoted as PV) in the thyroid hormone receptor-beta gene (TRbeta(PV/PV) mouse). As these mice age, they spontaneously develop TSHomas. Using this mouse model, we investigated the role of the phosphatidylinositol 3-kinase (PI3K)-AKT signaling pathway in the pathogenesis of TSHomas. Concurrent with aberrant growth of pituitaries, AKT and its downstream effectors, mammalian target rapamycin and p70(S6K), were activated to contribute to increased cell proliferation and pituitary growth. In addition, activation of AKT led to decreased apoptosis by inhibiting proapoptotic activity of Bcl-2-associated death promoter, further contributing to the aberrant cell proliferation. These results suggest an activated PI3K-AKT pathway could underscore tumorigenesis, raising the possibility that this pathway could be a potential therapeutic target in TSHomas. Indeed, TRbeta(PV/PV) mice treated with a PI3K-specific inhibitor, LY294002, showed a significant decrease in pituitary growth. The progrowth signaling via AKT-mammalian target rapamycin-p70(S6K) and cyclin D1/cyclin-dependent kinase were inhibited, and proapoptotic activity of Bcl-2-associated death promoter was increased by LY294002 treatment. Thus, activation of the PI3K-AKT pathway mediates, at least in part, the aberrant pituitary growth, and the intervention of this signaling pathway presents a novel therapeutic opportunity for TSHomas.
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Affiliation(s)
- Changxue Lu
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, 37 Convent Drive MSC 4264, Bethesda, MD 20892-4264, USA
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Furuya F, Lu C, Willingham MC, Cheng SY. Inhibition of phosphatidylinositol 3-kinase delays tumor progression and blocks metastatic spread in a mouse model of thyroid cancer. Carcinogenesis 2007; 28:2451-8. [PMID: 17660507 DOI: 10.1093/carcin/bgm174] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aberrant activation of the phosphatidylinositol 3-kinase (PI3K)-AKT/protein kinase B-signaling pathway has been associated with multiple human cancers, including thyroid cancer. Recently, we showed that, similar to human thyroid cancer, the PI3K-AKT pathway is overactivated in both the thyroid and metastatic lesions of a mouse model of follicular thyroid carcinoma (TRbeta(PV/PV) mice). This TRbeta(PV/PV) mouse harbors a knockin mutant thyroid hormone receptor beta gene (TRbetaPV mutant) that spontaneously develops thyroid cancer and distant metastasis similar to human follicular thyroid cancer. That the activation of the PI3K-AKT signaling contributes to thyroid carcinogenesis raised the possibility that this pathway could be a potential therapeutic target in follicular thyroid carcinoma. The present study tested this possibility by treating TRbeta(PV/PV) mice with LY294002 (LY), a potent and specific PI3K inhibitor, and evaluating the effect of LY on the spontaneous development of thyroid cancer. LY treatment inhibited the AKT-mammalian target of rapamycin (mTOR)-p70(S6K) signaling, and it decreased cyclin D1 and increased p27(Kip1) expression to inhibit thyroid tumor growth and reduce tumor cell proliferation. LY treatment increased caspase 3 and decreased phosphorylated-BAD to induce apoptosis. In addition, LY treatment reduced the AKT-matrix metalloproteinase 2 signaling to decrease cell motility to block metastatic spread of thyroid tumors. Thus, these altered signaling pathways converged effectively to prolong survival of TRbeta(PV/PV) mice treated with LY. No significant adverse effects were observed for wild-type mice treated similarly with LY. The present study provides the first preclinical evidence for the in vivo efficacy for LY in the treatment of follicular thyroid cancer.
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Affiliation(s)
- Fumihiko Furuya
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Furuya F, Guigon CJ, Zhao L, Lu C, Hanover JA, Cheng SY. Nuclear receptor corepressor is a novel regulator of phosphatidylinositol 3-kinase signaling. Mol Cell Biol 2007; 27:6116-26. [PMID: 17606624 PMCID: PMC1952145 DOI: 10.1128/mcb.00900-07] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The nuclear receptor corepressor (NCoR) regulates the activities of DNA-binding transcription factors. Recent observations of its distribution in the extranuclear compartment raised the possibility that it could have other cellular functions in addition to transcription repression. We previously showed that phosphatidylinositol 3-kinase (PI3K) signaling is aberrantly activated by a mutant thyroid hormone beta receptor (TRbetaPV, hereafter referred to as PV) via physical interaction with p85alpha, thus contributing to thyroid carcinogenesis in a mouse model of follicular thyroid carcinoma (TRbetaPV/PV mouse). Since NCoR is known to modulate the actions of TRbeta mutants in vivo and in vitro, we asked whether NCoR regulates PV-activated PI3K signaling. Remarkably, we found that NCoR physically interacted with and competed with PV for binding to the C-terminal SH2 (Src homology 2) domain of p85alpha, the regulatory subunit of PI3K. Confocal fluorescence microscopy showed that both NCoR and p85alpha were localized in the nuclear as well as in the cytoplasmic compartments. Overexpression of NCoR in thyroid tumor cells of TRbetaPV/PV mouse reduced PI3K signaling, as indicated by the decrease in the phosphorylation of its immediate downstream effector, p-AKT. Conversely, lowering cellular NCoR by siRNA knockdown in tumor cells led to overactivated p-AKT and increased cell proliferation and motility. Furthermore, NCoR protein levels were significantly lower in thyroid tumor cells than in wild-type thyrocytes, allowing more effective binding of PV to p85alpha to activate PI3K signaling and thus contributing to tumor progression. Taken together, these results indicate that NCoR, via protein-protein interaction, is a novel regulator of PI3K signaling and could serve to modulate thyroid tumor progression.
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Affiliation(s)
- Fumihiko Furuya
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 37 Convent Dr., Room 5128, Bethesda, MD 20892-4264, USA
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Kim CS, Furuya F, Ying H, Kato Y, Hanover JA, Cheng SY. Gelsolin: a novel thyroid hormone receptor-beta interacting protein that modulates tumor progression in a mouse model of follicular thyroid cancer. Endocrinology 2007; 148:1306-12. [PMID: 17170101 DOI: 10.1210/en.2006-0923] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Follicular thyroid cancer (FTC) is known to metastasize to distant sites via hematogenous spread; however, the underlying pathways that contribute to metastasis remain unknown. Recent creation of a knockin mutant mouse that expresses a mutant thyroid hormone receptor-beta (TRbeta(PV/PV) mouse) that spontaneously develops thyroid cancer with metastasis similar to humans has provided new opportunities to study contributors to FTC metastasis. This study evaluates the role of gelsolin, an actin-regulatory protein, in modulating the metastatic potential of FTC. Gelsolin was previously found by cDNA microarray analysis to be down-regulated in TRbeta(PV/PV) mice as compared with wild-type mice. This study found an age-dependent reduction of gelsolin protein abundance in TRbeta(PV/PV) mice as tumorigenesis progressed. Knockdown of gelsolin by small interfering RNA resulted in increased tumor cell motility and increased gelsolin expression by histone deacetylase inhibitor (trichostatin A) led to decreased cell motility. Additional biochemical analyses demonstrated that gelsolin physically interacted with TRbeta1 or PV in vivo and in vitro. The interaction regions were mapped to the C terminus of gelsolin and the DNA binding domain of TR. The physical interaction of gelsolin with PV reduced its binding to actin, leading to disarrayed cytoskeletal architectures. These results suggest that PV-induced alteration of the actin/gelsolin cytoskeleton contributes to increased cell motility. Thus, the present study uncovered a novel PV-mediated oncogenic pathway that could contribute to the local tumor progression and metastatic potential of thyroid carcinogenesis.
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Affiliation(s)
- Caroline S Kim
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, 37 Convent Drive, Bethesda, MD 20892-4264, USA
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Abstract
Study of molecular actions of thyroid hormone receptor beta (TRbeta) mutants in vivo has been facilitated by creation of a mouse model (TRbetaPV mouse) that harbors a knockin mutant of TRbeta (denoted PV). PV, which was identified in a patient with resistance to thyroid hormone, has lost T3 binding activity and transcription capacity. The striking phenotype of thyroid cancer exhibited by TRbeta(PV/PV) mice has allowed the elucidation of novel oncogenic activity of a TRbeta mutant (PV) [PAS1] beyond nucleus-initiated transcription. PV was found to physically interact with the regulatory p85alpha subunit of phosphatidylinositol 3-kinase (PI3K) in both the nuclear and cytoplasmic compartments. This protein-protein interaction activates the PI3K signaling by increasing phosphorylation of AKT, mammalian target of rapamycin (mTOR), and p70(S6K). PV, via interaction with p85alpha, also activates the PI3K-integrin-linked kinase-matrix metalloproteinase-2 signaling pathway in the extra-nuclear compartment. The PV-mediated PI3K activation results in increased cell proliferation, motility, migration, and metastasis. In addition to affecting these membrane-initiated signaling events, PV affects the stability of the pituitary tumor-transforming gene (PTTG) product. PTTG (also known as securin), a critical mitotic checkpoint protein, is physically associated with TRbeta or PV in vivo. Concomitant with T3-induced degradation of TRbeta, PTTG is degraded by the proteasome machinery, but no such degradation occurs when PTTG is associated with PV. The degradation of PTTG/TRbeta is activated by the direct interaction of the T3-bound TRbeta with the steroid receptor coactivator-3 (SRC-3) that recruits a proteasome activator (PA28gamma). PV that does not bind T3 cannot interact directly with SRC-3/PA28gamma to activate proteasome degradation, and the absence of degradation results in an aberrant accumulation of PTTG. The PV-induced failure of timely degradation of PTTG results in mitotic abnormalities. PV, via novel protein-protein interaction and transcription regulation, acts to antagonize the functions of wild-type TRs and contributes to the oncogenic functions of this mutation.
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Affiliation(s)
- Fumihiko Furuya
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4264, USA
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Abstract
Thyroid hormone (T3) is critical for growth, differentiation, and maintenance of metabolic homeostasis. Mice with a knock-in mutation in the thyroid hormone receptor alpha gene (TRalpha1PV) were created previously to explore the roles of mutated TRalpha1 in vivo. TRalpha1PV is a dominant negative mutant with a frameshift mutation in the carboxyl-terminal 14 amino acids that results in the loss of T3 binding and transcription capacity. Homozygous knock-in TRalpha1(PV/PV) mice are embryonic lethal, and heterozygous TRalpha1(PV/+) mice display the striking phenotype of dwarfism. These mutant mice provide a valuable tool for identifying the defects that contribute to dwarfism. Here we show that white adipose tissue (WAT) mass was markedly reduced in TRalpha1(PV/+) mice. The expression of peroxisome proliferator-activated receptor gamma (PPARgamma), the key regulator of adipogenesis, was repressed at both mRNA and protein levels in WAT of TRalpha1(PV/+) mice. Moreover, TRalpha1PV acted to inhibit the transcription activity of PPARgamma by competition with PPARgamma for binding to PPARgamma response elements and for heterodimerization with the retinoid X receptors. The expression of TRalpha1PV blocked the T3-dependent adipogenesis of 3T3-L1 cells and repressed the expression of PPARgamma. Thus, mutations of TRalpha1 severely affect adipogenesis via cross talk with PPARgamma signaling. The present study suggests that defects in adipogenesis could contribute to the phenotypic manifestation of reduced body weight in TRalpha1(PV/+) mice.
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Affiliation(s)
- Hao Ying
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4264, USA
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Ying H, Furuya F, Zhao L, Araki O, West BL, Hanover JA, Willingham MC, Cheng SY. Aberrant accumulation of PTTG1 induced by a mutated thyroid hormone beta receptor inhibits mitotic progression. J Clin Invest 2006; 116:2972-84. [PMID: 17039256 PMCID: PMC1592548 DOI: 10.1172/jci28598] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2006] [Accepted: 08/15/2006] [Indexed: 11/17/2022] Open
Abstract
Overexpression of pituitary tumor-transforming 1 (PTTG1) is associated with thyroid cancer. We found elevated PTTG1 levels in the thyroid tumors of a mouse model of follicular thyroid carcinoma (TRbeta(PV/PV) mice). Here we examined the molecular mechanisms underlying elevated PTTG1 levels and the contribution of increased PTTG1 to thyroid carcinogenesis. We showed that PTTG1 was physically associated with thyroid hormone beta receptor (TRbeta) as well as its mutant, designated PV. Concomitant with thyroid hormone-induced (T3-induced) degradation of TRbeta, PTTG1 proteins were degraded by the proteasomal machinery, but no such degradation occurred when PTTG1 was associated with PV. The degradation of PTTG1/TRbeta was activated by the direct interaction of the liganded TRbeta with steroid receptor coactivator 3 (SRC-3), which recruits proteasome activator PA28gamma. PV, which does not bind T3, could not interact directly with SRC-3/PA28gamma to activate proteasome degradation, resulting in elevated PTTG1 levels. The accumulated PTTG1 impeded mitotic progression in cells expressing PV. Our results unveil what we believe to be a novel mechanism by which PTTG1, an oncogene, is regulated by the liganded TRbeta. The loss of this regulatory function in PV led to an aberrant accumulation of PTTG1 disrupting mitotic progression that could contribute to thyroid carcinogenesis.
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Affiliation(s)
- Hao Ying
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
Plexxikon, Inc., Berkeley, California, USA.
Laboratory of Cellular Biochemistry and Biology, NIDDK, NIHealth, Bethesda, Maryland, USA.
Wake Forest University, Winston-Salem, North Carolina, USA
| | - Fumihiko Furuya
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
Plexxikon, Inc., Berkeley, California, USA.
Laboratory of Cellular Biochemistry and Biology, NIDDK, NIHealth, Bethesda, Maryland, USA.
Wake Forest University, Winston-Salem, North Carolina, USA
| | - Li Zhao
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
Plexxikon, Inc., Berkeley, California, USA.
Laboratory of Cellular Biochemistry and Biology, NIDDK, NIHealth, Bethesda, Maryland, USA.
Wake Forest University, Winston-Salem, North Carolina, USA
| | - Osamu Araki
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
Plexxikon, Inc., Berkeley, California, USA.
Laboratory of Cellular Biochemistry and Biology, NIDDK, NIHealth, Bethesda, Maryland, USA.
Wake Forest University, Winston-Salem, North Carolina, USA
| | - Brian L. West
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
Plexxikon, Inc., Berkeley, California, USA.
Laboratory of Cellular Biochemistry and Biology, NIDDK, NIHealth, Bethesda, Maryland, USA.
Wake Forest University, Winston-Salem, North Carolina, USA
| | - John A. Hanover
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
Plexxikon, Inc., Berkeley, California, USA.
Laboratory of Cellular Biochemistry and Biology, NIDDK, NIHealth, Bethesda, Maryland, USA.
Wake Forest University, Winston-Salem, North Carolina, USA
| | - Mark C. Willingham
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
Plexxikon, Inc., Berkeley, California, USA.
Laboratory of Cellular Biochemistry and Biology, NIDDK, NIHealth, Bethesda, Maryland, USA.
Wake Forest University, Winston-Salem, North Carolina, USA
| | - Sheue-yann Cheng
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA.
Plexxikon, Inc., Berkeley, California, USA.
Laboratory of Cellular Biochemistry and Biology, NIDDK, NIHealth, Bethesda, Maryland, USA.
Wake Forest University, Winston-Salem, North Carolina, USA
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Hiroi Y, Kim HH, Ying H, Furuya F, Huang Z, Simoncini T, Noma K, Ueki K, Nguyen NH, Scanlan TS, Moskowitz MA, Cheng SY, Liao JK. Rapid nongenomic actions of thyroid hormone. Proc Natl Acad Sci U S A 2006; 103:14104-9. [PMID: 16966610 PMCID: PMC1599919 DOI: 10.1073/pnas.0601600103] [Citation(s) in RCA: 271] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The binding of thyroid hormone to the thyroid hormone receptor (TR) mediates important physiological effects. However, the transcriptional effects of TR mediated by the thyroid response element (TRE) cannot explain many actions of thyroid hormone. We postulate that TR can initiate rapid, non-TRE-mediated effects in the cardiovascular system through cross-coupling to the phosphatidylinositol 3-kinase (PI3-kinase)/protein kinase Akt pathway. In vascular endothelial cells, the predominant TR isoform is TRalpha1. Treatment of endothelial cells with L-3,5,3'-triiodothyronine (T3) increased the association of TRalpha1 with the p85alpha subunit of PI3-kinase, leading to the phosphorylation and activation of Akt and endothelial nitric oxide synthase (eNOS). The activation of Akt and eNOS by T3 was abolished by the PI3-kinase inhibitors, LY294002 and wortmannin, but not by the transcriptional inhibitor, actinomycin D. To determine the physiological relevance of this PI3-kinase/Akt pathway, we administered T3 to mice undergoing transient focal cerebral ischemia. Compared with vehicle, a single bolus infusion of T3 rapidly increased Akt activity in the brain, decreased mean blood pressure, reduced cerebral infarct volume, and improved neurological deficit score. These neuroprotective effects of T3 were greatly attenuated or absent in eNOS-/- and TRalpha1-/-beta-/- mice and were completely abolished in WT mice pretreated with LY294002 or a T3 antagonist, NH-3. These findings indicate that the activation of PI3-kinase/Akt pathways can mediate some of the rapid, non-TRE effects of TR and suggest that the activation of Akt and eNOS contributes to some of the acute vasodilatory and neuroprotective effects of thyroid hormone.
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Affiliation(s)
- Yukio Hiroi
- *Vascular Medicine Research, Brigham and Women’s Hospital and Harvard Medical School, Cambridge, MA 02139
| | - Hyung-Hwan Kim
- *Vascular Medicine Research, Brigham and Women’s Hospital and Harvard Medical School, Cambridge, MA 02139
| | - Hao Ying
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Fumihiko Furuya
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Zhihong Huang
- Laboratory of Stroke and Neurovascular Regulation, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114
| | - Tommaso Simoncini
- Department of Reproductive Medicine and Child Development, University of Pisa, 56126 Pisa, Italy
| | - Kensuke Noma
- *Vascular Medicine Research, Brigham and Women’s Hospital and Harvard Medical School, Cambridge, MA 02139
| | - Kojiro Ueki
- Department of Metabolic Diseases, Graduate School of Medicine, University of Tokyo, Tokyo 113-0033, Japan; and
| | - Ngoc-Ha Nguyen
- Departments of Pharmaceutical Chemistry and Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143
| | - Thomas S. Scanlan
- Departments of Pharmaceutical Chemistry and Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94143
| | - Michael A. Moskowitz
- Laboratory of Stroke and Neurovascular Regulation, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114
| | - Sheue-Yann Cheng
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - James K. Liao
- *Vascular Medicine Research, Brigham and Women’s Hospital and Harvard Medical School, Cambridge, MA 02139
- **To whom correspondence should be addressed. E-mail:
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Kato Y, Ying H, Zhao L, Furuya F, Araki O, Willingham MC, Cheng SY. PPARgamma insufficiency promotes follicular thyroid carcinogenesis via activation of the nuclear factor-kappaB signaling pathway. Oncogene 2006; 25:2736-47. [PMID: 16314832 DOI: 10.1038/sj.onc.1209299] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The molecular genetic events underlying thyroid carcinogenesis are poorly understood. Mice harboring a knock-in dominantly negative mutant thyroid hormone receptor beta (TRbetaPV/PV mouse) spontaneously develop follicular thyroid carcinoma similar to human thyroid cancer. Using this mutant mouse, we tested the hypothesis that the peroxisome proliferator-activated receptor gamma (PPARgamma) could function as a tumor suppressor in thyroid cancer in vivo. Using the offspring from the cross of TRbetaPV/+ and PPARgamma+/- mice, we found that thyroid carcinogenesis progressed significantly faster in TRbetaPV/PV mice with PPARgamma insufficiency from increased cell proliferation and reduced apoptosis. Reduced PPARgamma protein abundance led to the activation of the nuclear factor-kappaB signaling pathway, resulting in the activation of cyclin D1 and repression of critical genes involved in apoptosis. Treatment of TRbetaPV/PV mice with a PPARgamma agonist, rosiglitazone, delayed the progression of thyroid carcinogenesis by decreasing cell proliferation and activation of apoptosis. These results suggest that PPARgamma is a critical modifier in thyroid carcinogenesis and could be tested as a therapeutic target in thyroid follicular carcinoma.
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Affiliation(s)
- Y Kato
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4264, USA
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Abstract
Activation of the phosphatidylinositol 3-kinase (PI3K)-AKT/protein kinase B signaling pathway has been associated with multiple human cancers. Recently we showed that AKT is activated in both the thyroid and metastatic lesions of a mouse model of follicular thyroid carcinoma [thyroid hormone beta receptor (TRbeta)(PV/PV) mice]. This TRbeta(PV/PV) mouse harbors a knock-in mutant TRbeta gene (TRbetaPV mutant) that spontaneously develops thyroid cancer and distant metastasis similar to human follicular thyroid cancer. Here we show that in thyroid tumors, PV mutant bound significantly more to the PI3K-regulatory subunit p85alpha, resulting in a greater increase in the kinase activity than did TRbeta1 in wild-type mice. By GST pull-down assays, the ligand-binding domain of TR was identified as the interaction site with p85alpha. By confocal fluorescence microscopy, p85alpha was shown to colocalize with TRbeta1 or PV mainly in the nuclear compartment of cultured tumor cells from TRbeta(PV/PV) mice, but cytoplasmic p85alpha/PV or p85alpha/TRbeta1 complexes were also detectable. Further biochemical analysis revealed that the activation of the PI3K-AKT-mammalian target of the rapamycin-p70(S6K) pathway was observed in both the cytoplasmic and nuclear compartments, whereas the activation of the PI3K-integrin-linked kinase-matrix metalloproteinase 2 pathway was detected mainly in the extranuclear compartments. These results suggest that PV, via the activation of p85alpha, could act to affect PI3K downstream signaling in both the nuclear and extranuclear compartments, thereby contributing to thyroid carcinogenesis. Importantly, the present study unveils a mechanism by which a mutant TR acts to activate PI3K activity via protein-protein interactions.
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Affiliation(s)
- Fumihiko Furuya
- *Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, and
| | - John A. Hanover
- Laboratory of Cellular Biochemistry and Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Sheue-yann Cheng
- *Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, and
- To whom correspondence should be addressed at:
Laboratory of Molecular Biology, National Cancer Institute, 37 Convent Drive, Room 5128, Bethesda, MD 20892-4264. E-mail:
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Araki O, Ying H, Furuya F, Zhu X, Cheng SY. Thyroid hormone receptor beta mutants: Dominant negative regulators of peroxisome proliferator-activated receptor gamma action. Proc Natl Acad Sci U S A 2005; 102:16251-6. [PMID: 16260719 PMCID: PMC1283481 DOI: 10.1073/pnas.0508556102] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Thyroid hormone (T3) and peroxisome proliferators have overlapping metabolic effects in the maintenance of lipid homeostasis. Their actions are mediated by their respective receptors: thyroid hormone receptors (TR) and peroxisome proliferator-activated receptors (PPAR). We recently found that a dominantly negative TRbeta mutant (PV) that causes a genetic disease, resistance to thyroid hormone, acts to repress the ligand (troglitazone)-mediated transcriptional activity of PPARgamma in cultured thyroid cells. This finding suggests that TRbeta mutants could crosstalk with PPARgamma-signaling pathways. The present study explored the molecular mechanisms by which PV represses the PPARgamma transcriptional activity. Gel-shift assays show that the PV, similar to wild-type TRbeta, bound to the peroxisome proliferator response element (PPRE) as homodimers and heterodimers with PPARgamma or the retinoid X receptor (RXR), thereby competing with PPARgamma for binding to PPRE and for sequestering RXR. Association of PPRE-bound PV with corepressors [e.g., nuclear receptor corepressor (NCoR)] that led to transcriptional repression was independent of T3 and troglitazone. Chromatin immunoprecipitation assay further demonstrated that, despite the presence of ligands, NCoR was recruited to PPRE-bound PV on a PPARgamma-target gene, the lipoprotein lipase, in vivo, suggesting the dominant action of PV on PPARgamma-mediated transcriptional activity. Thus, the dominant negative action of PV is not limited on the wild-type TRs. The findings that TRbeta mutants affect PPARgamma functions through dominant negative action provide insights into the molecular mechanisms by which TR regulates the PPARgamma-target genes involved in metabolic pathways, lipid homeostasis, and carcinogenesis.
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Affiliation(s)
- Osamu Araki
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4264, USA
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