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Manaka K, Kato S, Sakamoto R, Yamakage H, Uema T, Kawai S, Shibata M, Hiratsuka I, Nakachi S, Onoue T, Tsuchiya T, Fukui M, Hashimoto K, Suzuki A, Makita N, Ogawa Y, Arima H, Satoh-Asahara N, Masuzaki H. Impact of coronavirus disease 2019 on medical practice in endocrine and metabolic diseases in Japan: a nationwide surveillance study conducted by the Japan Endocrine Society. Endocr J 2024:EJ23-0671. [PMID: 38462511 DOI: 10.1507/endocrj.ej23-0671] [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] [Indexed: 03/12/2024] Open
Abstract
We investigated the impact of the Coronavirus disease 2019 (COVID-19) pandemic on the management of endocrine and metabolic disorders in Japan. We conducted a cross-sectional nationwide questionnaire survey targeting board-certified endocrinologists under the auspices of the Japan Endocrine Society. The questionnaire consisted of multiple-choice questions and open-ended responses. Out of approximately 2,700 specialists, 528 (19.5%) opted to participate, suggesting a high level of interest in COVID-19 management among endocrinologists. The study found that almost half of participants had encountered cases of endocrine and metabolic disorders following COVID-19 infection or vaccination. Conditions related to thyroid diseases, glucose metabolism disorders/diabetes, and hypothalamic-pituitary disorders were particularly prevalent. Diabetes and obesity were identified as having high rates of severe cases or fatalities due to COVID-19. The study also highlighted challenges in routine diagnosis and treatment, emphasizing the potential benefits of combining remote consultations with in-person visits to optimize the frequency of examinations and check-ups during infectious disease outbreak which disrupts access to healthcare providers. The insights obtained from this survey are expected to contribute to ensuring appropriate healthcare provision for patients with endocrine and metabolic disorders by using flexible consultation formats, particularly even in the conditions where medical access may be limited due to future outbreaks of emerging or re-emerging infectious diseases.
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Affiliation(s)
- Katsunori Manaka
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo 113-8655, Japan
| | - Sayaka Kato
- Department of Endocrinology, Metabolism and Hypertension Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Ryuichi Sakamoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hajime Yamakage
- Department of Endocrinology, Metabolism and Hypertension Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
| | - Tsugumi Uema
- Second Department of Internal Medicine (Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology), Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Shiori Kawai
- Department of Diabetes, Endocrinology and Hematology, Dokkyo Medical University Saitama Medical Center, Saitama 343-8555, Japan
| | - Megumi Shibata
- Department of Endocrinology, Diabetes and Metabolism, Fujita Health University, School of Medicine, Aichi 470-1192, Japan
| | - Izumi Hiratsuka
- Department of Endocrinology, Diabetes and Metabolism, Fujita Health University, School of Medicine, Aichi 470-1192, Japan
| | - Sawako Nakachi
- Second Department of Internal Medicine (Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology), Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Takeshi Onoue
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Aichi 466-8550, Japan
| | - Takefumi Tsuchiya
- Department of Diabetes, Endocrinology and Hematology, Dokkyo Medical University Saitama Medical Center, Saitama 343-8555, Japan
| | - Michiaki Fukui
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Koshi Hashimoto
- Department of Diabetes, Endocrinology and Hematology, Dokkyo Medical University Saitama Medical Center, Saitama 343-8555, Japan
| | - Atsushi Suzuki
- Department of Endocrinology, Diabetes and Metabolism, Fujita Health University, School of Medicine, Aichi 470-1192, Japan
| | - Noriko Makita
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo 113-8655, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hiroshi Arima
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Aichi 466-8550, Japan
| | - Noriko Satoh-Asahara
- Department of Endocrinology, Metabolism and Hypertension Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
- Department of Metabolic Syndrome and Nutritional Science, Research Institute of Environmental Medicine, Nagoya University, Aichi 466-8550, Japan
| | - Hiroaki Masuzaki
- Second Department of Internal Medicine (Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology), Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0213, Japan
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Kato H, Kimura S, Taguchi M, Sunouchi T, Hoshino Y, Hidaka N, Edvige Foligno N, Koga M, Manaka K, Tamiya H, Kawakami M, Kage H, Yasunaga Y, Nangaku M, Makita N, Ito N. FGF23-related hypophosphatemia in a patient with small cell lung cancer: a case report and literature review. Endocr J 2023; 70:1005-1013. [PMID: 37468265 DOI: 10.1507/endocrj.ej23-0086] [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: 07/21/2023] Open
Abstract
Although there are a few case reports of patients with small cell lung cancer developing hypophosphatemia, detailed information on this condition is scarce. A 52-year-old patient with advanced stage small cell lung cancer developed hypophosphatemia (1.1 mg/dL) during chemotherapy. A reduced level of the tubular reabsorption of phosphate concomitant with an inappropriately elevated level of fibroblast growth factor (FGF) 23 (48.4 pg/mL) was noted, leading to the diagnosis of FGF23-related hypophosphatemia. Laboratory data also showed hypercortisolemia with an elevated ACTH level and hyponatremia with an inappropriately unsuppressed level of antidiuretic hormone (ADH). These data suggested the overproduction of FGF23 in addition to ACTH and ADH. Because the octreotide loading test did not present a suppressive effect on ACTH or FGF23 levels, the patient was treated with phosphate supplementation, active vitamin D and metyrapone, which partially improved the serum phosphate and cortisol levels. Even after two subsequent courses of chemotherapy, the small cell lung cancer progressed, and the FGF23 level was further elevated (83.7 pg/mL). Although it is very rare, FGF23-related hypophosphatemia is one of the hormonal disturbances that could be observed in patients with small cell lung cancer. This article reviews similar clinical conditions and revealed that advanced states of malignancy seemed to be associated with the development of renal wasting hypophosphatemia, especially in lung cancer and prostate cancer. Therefore, the parameters related to hypophosphatemia should be monitored in patients with advanced small cell lung cancer to prevent the development of hypophosphatemic osteomalacia.
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Affiliation(s)
- Hajime Kato
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Soichiro Kimura
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Maho Taguchi
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Takashi Sunouchi
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Yoshitomo Hoshino
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Naoko Hidaka
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Nadia Edvige Foligno
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Nephrology and Dialysis Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Minae Koga
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Katsunori Manaka
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Hiroyuki Tamiya
- Department of Respiratory Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Masanori Kawakami
- Department of Respiratory Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Hidenori Kage
- Department of Respiratory Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Yoichi Yasunaga
- Department of Pathology, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Noriko Makita
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Nobuaki Ito
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
- Osteoporosis Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
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Hoshino Y, Manaka K, Sato J, Asatsuma Y, Horikoshi H, Takeuchi M, Ito N, Fujita M, Yasunaga M, Matsuda K, Honda A, Maki H, Masamoto Y, Kurokawa M, Nangaku M, Makita N. Recurrent bilateral adrenal infarction with myelodysplastic/myeloproliferative neoplasm-unclassifiable (MDS/MPN-U): a case report. BMC Endocr Disord 2023; 23:128. [PMID: 37277771 DOI: 10.1186/s12902-023-01384-5] [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: 08/11/2022] [Accepted: 05/30/2023] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND Bilateral adrenal infarction is rare and only a small number of cases have been reported so far. Adrenal infarction is usually caused by thrombophilia or a hypercoagulable state, such as antiphospholipid antibody syndrome, pregnancy, and coronavirus disease 2019. However, adrenal infarction with myelodysplastic/myeloproliferative neoplasm (MDS/MPN) has not been reported. CASE PRESENTATION An 81-year-old man with a sudden severe bilateral backache presented to our hospital. Contrast-enhanced computed tomography (CT) led to the diagnosis of bilateral adrenal infarction. Previously reported causes of adrenal infarction were all excluded and a diagnosis of MDS/MPN-unclassifiable (MDS/MPN-U) was reached, which was considered to be attributed to adrenal infarction. He developed a relapse of bilateral adrenal infarction, and aspirin administration was initiated. Partial primary adrenal insufficiency was suspected as the serum adrenocorticotropic hormone level was persistently high after the second bilateral adrenal infarction. CONCLUSION This is the first case of bilateral adrenal infarction with MDS/MPN-U encountered. MDS/MPN has the clinical characteristics of MPN. It is reasonable to assume that MDS/MPN-U may have influenced bilateral adrenal infarction development, considering the absence of thrombosis history and a current comorbid hypercoagulable disease. This is also the first case of recurrent bilateral adrenal infarction. It is important to carefully investigate the underlying cause of adrenal infarction once adrenal infarction is diagnosed, as well as to assess adrenocortical function.
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Affiliation(s)
- Yoshitomo Hoshino
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Katsunori Manaka
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Junichiro Sato
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Yui Asatsuma
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Hirofumi Horikoshi
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Maki Takeuchi
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Nobuaki Ito
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Megumi Fujita
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Megumi Yasunaga
- Department of Hematology and Oncology, The University of Tokyo Hospital, Tokyo, Japan
| | - Kensuke Matsuda
- Department of Hematology and Oncology, The University of Tokyo Hospital, Tokyo, Japan
| | - Akira Honda
- Department of Hematology and Oncology, The University of Tokyo Hospital, Tokyo, Japan
| | - Hiroaki Maki
- Department of Hematology and Oncology, The University of Tokyo Hospital, Tokyo, Japan
| | - Yosuke Masamoto
- Department of Hematology and Oncology, The University of Tokyo Hospital, Tokyo, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, The University of Tokyo Hospital, Tokyo, Japan
- Department of Cell Therapy and Transplantation Medicine, The University of Tokyo Hospital, Tokyo, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Noriko Makita
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
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Nakai K, Manaka K, Sato J, Takeuchi M, Yamazaki Y, Sasano H, Tsurutani Y, Saito J, Nishikawa T, Iiri T, Nangaku M, Makita N. Aldosterone-Producing Adenomas of Increased Size Are Associated With Higher Steroidogenic Activity. J Clin Endocrinol Metab 2022; 107:3045-3054. [PMID: 36074914 DOI: 10.1210/clinem/dgac530] [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] [Received: 07/12/2022] [Indexed: 11/19/2022]
Abstract
CONTEXT There are inconsistent results and insufficient evidence as to whether an association exists between the size and aldosterone-producing ability of aldosterone-producing adenomas. OBJECTIVE We further investigated this possible association retrospectively. METHODS A total of 142 cases of primary aldosteronism diagnosed as unilateral by adrenal venous sampling at 2 referral centers between 2009 and 2019 were included. We classified these individuals into small and large tumor groups using a diameter of 14 mm as a cutoff. This size was the median diameter of the tumor on the affected side of the adrenal gland. We compared plasma aldosterone concentration (PAC), plasma renin activity (PRA), PAC to PRA ratio, PAC from a saline infusion test (SIT), urinary aldosterone secretion (uAld), and serum potassium as indices of aldosterone-producing ability between the 2 groups. In some cases, we conducted histopathological evaluations and detection of the KCNJ5 mutation. RESULTS PAC, PAC to PRA ratio, PAC from SIT, and uAld were higher and serum potassium was lower in the large tumor group. PAC, PAC from SIT, uAld, and serum potassium significantly correlated with tumor diameter. PRA was not associated with tumor diameter. Clear cell-dominant cases were more common in the large tumor group, while cases showing a strong expression of CYP11B2 were not significantly different between the groups. KCNJ5 mutations tended to be more common in the large tumor group. CONCLUSION The higher aldosterone-producing ability in larger adenomas can be used to infer the responsible lesion and disease type.
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Affiliation(s)
- Kazuki Nakai
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, 113-8655, Japan
- Endocrinology and Diabetes Center, Yokohama Rosai Hospital, Yokohama, 222-0036, Japan
| | - Katsunori Manaka
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, 113-8655, Japan
| | - Junichiro Sato
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, 113-8655, Japan
| | - Maki Takeuchi
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, 113-8655, Japan
| | - Yuto Yamazaki
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Yuya Tsurutani
- Endocrinology and Diabetes Center, Yokohama Rosai Hospital, Yokohama, 222-0036, Japan
| | - Jun Saito
- Endocrinology and Diabetes Center, Yokohama Rosai Hospital, Yokohama, 222-0036, Japan
| | - Tetsuo Nishikawa
- Endocrinology and Diabetes Center, Yokohama Rosai Hospital, Yokohama, 222-0036, Japan
- Nishikawa Clinic, Yokohama, 222-0033, Japan
| | - Taroh Iiri
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, 113-8655, Japan
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, 216-8511, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, 113-8655, Japan
| | - Noriko Makita
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, 113-8655, Japan
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Makita N, Sato J, Manaka K, Akahane K, Ito T, Yamazaki H, Mizoguchi A, Hikima Y, Horikoshi H, Nangaku M, Iiri T. Successful prednisolone or calcimimetic treatment of acquired hypocalciuric hypercalcemia caused by biased allosteric CaSR autoantibodies. JCI Insight 2022; 7:156742. [PMID: 36099030 DOI: 10.1172/jci.insight.156742] [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] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Biased agonism is a frontier field in G-protein coupled receptor (GPCR) research. Acquired hypocalciuric hypercalcemia (AHH) is a rare disease caused by calcium-sensing receptor (CaSR) autoantibodies, to date, showing either simple blocking or biased properties (i.e., stimulatory or blocking effects on different downstream signaling pathways). This emphasizes the importance of the Gi/o (pertussis toxin-sensitive G proteins, whose βγ subunits activate multiple signals including ERK1/2) in regulating PTH secretion. We here describe three patients with symptomatic AHH that shared characteristics with the two cases we previously reported as follows: [1] aged (between 74-87 years at diagnosis); [2] male; [3] unexpectedly showed no other autoimmune diseases; [4] showed spontaneously fluctuating calcium levels from approximately normal to near fatally high ranges; [5] acute exacerbations could be successfully treated with prednisolone and/or calcimimetics; [6] the presence of CaSR autoantibodies that operated as biased allosteric modulators of CaSR; and that [7] were likely to be conformational (i.e., recognizing and thereby stabilizing a unique active conformation of CaSR that activates Gq/11, activating phosphatidylinositol turnover, but not Gi/o). Our observations with these prominent commonalities may provide new insights into the phenotype and characteristics of AHH and the mechanisms by which the biased agonism of GPCRs operate.
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Affiliation(s)
- Noriko Makita
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Junichiro Sato
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Katsunori Manaka
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Kimiko Akahane
- Department of Endocrinology and Metabolism, Tosei General Hospital, Aichi, Japan
| | - Takahiro Ito
- Department of Diabetes, Hypertension and Thyroid, Shirakabe Internal Clinic of Diabetes, Aichi, Japan
| | - Hajime Yamazaki
- Department of Nephrology, Nagaoka Red Cross Hospital, Niigata, Japan
| | - Akira Mizoguchi
- Department of Endocrinology and Diabetes, Ichinomiya Municipal Hospital, Aichi, Japan
| | - Yusuke Hikima
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hirofumi Horikoshi
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masaomi Nangaku
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Taroh Iiri
- Department of Pharmacology, St. Marianna University School of Medicine, Kanagawa, Japan
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Kurakawa KI, Okada A, Manaka K, Konishi T, Jo T, Ono S, Uda K, Michihata N, Matsui H, Fushimi K, Yamaguchi S, Yamauchi T, Nangaku M, Yasunaga H, Kadowaki T. Clinical Characteristics and Incidences of Benign and Malignant Insulinoma Using a National Inpatient Database in Japan. J Clin Endocrinol Metab 2021; 106:3477-3486. [PMID: 34343300 DOI: 10.1210/clinem/dgab559] [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] [Received: 03/20/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Insulinoma is the most common pancreatic functional neuroendocrine neoplasm, yet little information on recent clinical practice in patients with insulinoma, especially malignant insulinoma, is available. OBJECTIVE This work aims to clarify the characteristics and practice patterns in patients with insulinoma using a national inpatient database. METHODS Using the Japanese Diagnosis Procedure Combination database, we retrospectively identified patients with insulinoma admitted between 2010 and 2018. We compared background characteristics and therapeutic interventions between patients with benign and malignant insulinoma. We also estimated the incidence of insulinoma using the number of patients with newly diagnosed insulinoma in 2012. RESULTS We identified 844 patients with benign insulinoma and 102 patients with malignant insulinoma. Patients with malignant insulinoma were younger (median, 55.5 vs 66.0 years, P < .001) and less likely to be female (55.9% vs 65.3%, P = .061) than patients with benign insulinoma. Analysis of therapeutic interventions revealed that patients with malignant insulinoma more frequently received medications (71.6% vs 49.6%, P < .001) but less frequently underwent pancreatic surgery (57.8% vs 72.0%, P = .003). Older patients were a smaller proportion of those undergoing surgery and a larger proportion of those managed with medications without surgery (P < .001). The incidence of insulinoma was estimated to be 3.27 (95% CI, 2.93-3.61) individuals per million Japanese adult population per year. CONCLUSION The present study using a nationwide database had a larger sample size than previous studies and revealed definitive differences in patient characteristics and therapeutic patterns between benign and malignant insulinoma.
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Affiliation(s)
- Kayo Ikeda Kurakawa
- Department of Prevention of Diabetes and Lifestyle-Related Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Akira Okada
- Department of Prevention of Diabetes and Lifestyle-Related Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Katsunori Manaka
- Division of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Takaaki Konishi
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Breast and Endocrine Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Taisuke Jo
- Department of Health Services Research, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Sachiko Ono
- Department of Eat-loss Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Kazuaki Uda
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan
| | - Nobuaki Michihata
- Department of Health Services Research, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo 113-8510, Japan
| | - Satoko Yamaguchi
- Department of Prevention of Diabetes and Lifestyle-Related Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Toshimasa Yamauchi
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo 113-0033, Japan
| | - Takashi Kadowaki
- Department of Prevention of Diabetes and Lifestyle-Related Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
- Toranomon Hospital, Tokyo 105-8470, Japan
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7
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Hamada T, Morita A, Suga H, Boki H, Fujimura T, Hirai Y, Shimauchi T, Tateishi C, Kiyohara E, Muto I, Nakajima H, Abe R, Fujii K, Nishigori C, Nakano E, Yonekura K, Funakoshi T, Amano M, Miyagaki T, Makita N, Manaka K, Shimoyama Y, Sugaya M. Safety and efficacy of bexarotene for Japanese patients with cutaneous T-cell lymphoma: Real-world experience from post-marketing surveillance. J Dermatol 2021; 49:253-262. [PMID: 34658060 DOI: 10.1111/1346-8138.16201] [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] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/30/2021] [Accepted: 10/04/2021] [Indexed: 12/01/2022]
Abstract
To establish real-world evidence about the safety and efficacy of bexarotene for Japanese patients with cutaneous T-cell lymphoma, we conducted a nationwide cohort study using data from post-marketing surveillance for bexarotene treatment. In total, 294 patients with cutaneous T-cell lymphoma were identified between June 2016 and June 2018. Of these, 267 patients were included as the safety analysis set. Of the 267 patients, 175 were included in the efficacy analysis set. Of these, 139 patients had mycosis fungoides, including 46 with early stage disease and 93 with advanced stage disease. Among the 139 patients with mycosis fungoides, the objective response rate was 46.8%. A significant difference in objective response rate was detected between patients who started with bexarotene at 300 mg/m2 (61.6%) and patients who started with bexarotene at less than 300 mg/m2 (22.6%, p < 0.001). Of the 139 patients with mycosis fungoides, 92 were treated with a combination of bexarotene plus photo(chemo)therapy. A significant difference in objective response rate was seen between bexarotene with a combination of photo(chemo)therapy (57.6%) and bexarotene without a combination of photo(chemo)therapy (25.5%, p < 0.001). Starting bexarotene at 300 mg/m2 and combination with photo(chemo)therapy were detected as independent factors influencing response. Common treatment-related adverse events included hypothyroidism (85.8%), hypertriglyceridemia (68.5%), hypercholesterolemia (43.8%), and neutropenia (21.3%). Hypertriglyceridemia, hypercholesterolemia, and neutropenia occurred more frequently in patients who started with bexarotene at 300 mg/m2 than patients who started with bexarotene at less than 300 mg/m2 (hypertriglyceridemia, 76.4% vs. 57.0%, p = 0.001; hypercholesterolemia, 49.0% vs. 36.4%, p = 0.045; neutropenia, 28.0% vs. 12.1%, p = 0.002; respectively). The present study indicates that starting bexarotene at 300 mg/m2 and combination of photo(chemo)therapy offer a promising efficacy for the treatment of patients with mycosis fungoides. Efficacy of low-dose bexarotene plus photo(chemo)therapy should be evaluated in future.
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Affiliation(s)
- Toshihisa Hamada
- Department of Dermatology, Takamatsu Red Cross Hospital, Takamatsu, Japan
| | - Akimichi Morita
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiraku Suga
- Department of Dermatology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hikari Boki
- Department of Dermatology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Taku Fujimura
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoji Hirai
- Department of Dermatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Takatoshi Shimauchi
- Department of Dermatology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Chiharu Tateishi
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Eiji Kiyohara
- Department of Dermatology, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Ikko Muto
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan
| | - Hideki Nakajima
- Department of Dermatology, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Riichiro Abe
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kazuyasu Fujii
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Chikako Nishigori
- Division of Dermatology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Eiji Nakano
- Division of Dermatology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kentaro Yonekura
- Department of Dermatology, Imamura General Hospital, Kagoshima, Japan
| | - Takeru Funakoshi
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Masahiro Amano
- Department of Dermatology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Tomomitsu Miyagaki
- Department of Dermatology, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Noriko Makita
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Katsunori Manaka
- Department of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | | | - Makoto Sugaya
- Department of Dermatology, International University of Health and Welfare, Chiba, Japan
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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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9
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Aoe M, Okada A, Usui T, Manaka K, Nangaku M, Makita N. Comparison between the clinical characteristics of patients with adrenal incidentalomas and those with hypertension-associated adrenal tumors in a single center in Japan. Endocr J 2020; 67:645-654. [PMID: 32213723 DOI: 10.1507/endocrj.ej19-0262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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
In the largest retrospective study of adrenal incidentalomas (AIs) in Japan between 1999 and 2004, adrenal tumors detected during secondary hypertension (HT) screening were included. The characteristics of patients with adrenal tumors detected during HT screening may differ from those of patients with AIs. This study aimed to compare the characteristics of patients with AIs with those of patients with adrenal tumors detected during HT screening. We retrospectively analyzed patients referred to our division for detailed examination of adrenal tumors between April 2009 and April 2017. When the purposes of imaging tests included HT screening, we defined adrenal tumors as HT associated, otherwise as strictly defined AIs. We reviewed data on age, sex, purpose and modality of imaging, location of tumor, tumor diameter, and hormonal evaluation. We identified 104 patients with HT-associated adrenal tumors and 413 with AIs. Patients with HT-associated adrenal tumors were younger (54.2 years vs. 61.7 years, p < 0.001) and had smaller tumor diameters (1.3 cm vs. 1.9 cm, p < 0.001), lower prevalence of nonfunctioning tumors (24.0% vs. 67.6%, p < 0.001), and higher prevalence of primary aldosteronism (58.7% vs. 4.8%, p < 0.001) than those with AIs. There were no differences in terms of tumor location and prevalence of subclinical Cushing's syndrome, Cushing's syndrome, and pheochromocytoma (18.3% vs. 16.0%, 7.7% vs. 8.0%, and 2.9% vs. 4.6%, respectively). In conclusion, patients with HT-associated tumors were younger and had a smaller tumor with higher prevalence of primary aldosteronism than those with AIs.
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Affiliation(s)
- Mari Aoe
- Division of Nephrology and Endocrinology, the University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Akira Okada
- Division of Nephrology and Endocrinology, the University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Tomoko Usui
- Division of Nephrology and Endocrinology, the University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Katsunori Manaka
- Division of Nephrology and Endocrinology, the University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, the University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Noriko Makita
- Division of Nephrology and Endocrinology, the University of Tokyo Hospital, Tokyo 113-8655, Japan
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Abstract
V2 vasopressin receptor (V2R) is a member of the G protein-coupled receptor (GPCR) family in which many disease-causing mutations have been identified and thus generated much interest. Loss-of-function V2R mutations cause nephrogenic diabetes insipidus (NDI) whereas gain-of-function mutations cause nephrogenic syndrome of inappropriate antidiuresis (NSIAD). The mechanisms underlying a V2R loss-of-function can be theoretically classified as either protein expression, localization (ER retention) or functional disorders. Functional analyses have revealed however that these mechanisms are likely to be complex. Strikingly, V2R mutations at the same site can result in opposite phenotypes, e.g., R137H and R137L/C cause NDI and NSIAD, respectively. These findings support the notion that the constitutive activation of GPCRs might be often associated with their instability and denaturation. Thus, functional analysis of disease-causing V2R mutations may not only reveal potential new treatment strategies using pharmacochaperones for NDI and inverse agonists for NSIAD, but also provide a greater understanding of the physiological functions of GPCRs and highlight the new paradigms, i.e., biased agonism and protean agonism.
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Affiliation(s)
- Noriko Makita
- Department of Endocrinology and Nephrology, The University of Tokyo, Tokyo, Japan.
| | - Katsunori Manaka
- Department of Endocrinology and Nephrology, The University of Tokyo, Tokyo, Japan
| | - Junichiro Sato
- Department of Endocrinology and Nephrology, The University of Tokyo, Tokyo, Japan
| | - Taroh Iiri
- Department of Endocrinology and Nephrology, The University of Tokyo, Tokyo, Japan; Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan.
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11
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Manaka K, Sato J, Kinoshita Y, Ito N, Fujita M, Iiri T, Nangaku M, Makita N. Effectiveness and safety of cinacalcet for primary hyperparathyroidism: a single center experience. Endocr J 2019; 66:683-689. [PMID: 31092749 DOI: 10.1507/endocrj.ej19-0034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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
Primary hyperparathyroidism (PHPT) is a common endocrine disease. Although surgical treatment is curative in most cases, there are few alternative therapies for the hypercalcemia caused by PHPT. Cinacalcet is a positive allosteric modulator of the calcium sensing receptor and was conditionally approved in Japan in 2014 to treat PHPT cases. However, there have been few reports on the outcomes. In our present study, we investigated the efficacy and safety of cinacalcet in 61 PHPT patients who were treated with this agent at our hospital between January 2014 and March 2017. The corrected serum Ca and intact PTH levels were significantly reduced by this treatment, whereas the serum phosphorus levels significantly increased. There were no significant differences in the eGFR or urinary Ca to urinary creatinine ratio between baseline and the maintenance phase. In terms of bone mineral density, there were significant increases observed in the 16 cases for whom a baseline value was available, 11 of whom had been treated for osteoporosis. The most common adverse events from cinacalcet treatment were gastrointestinal symptom, such as nausea and appetite loss. Other adverse events included severe dehydration due to hypercalcemia, myalgia, hypocalcemia, and increased urinary calcium excretion. Seven patients were switched to surgical treatment, and the drug was discontinued in 9 other patients, due to adverse effects. Our present study findings demonstrate that cinacalcet is an effective therapeutic option for PHPT from the perspective of hypercalcemia improvement but that adverse gastrointestinal effects of this drug occur at a frequency of about 10%.
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Affiliation(s)
- Katsunori Manaka
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Junichiro Sato
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Yuka Kinoshita
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Nobuaki Ito
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Megumi Fujita
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Taroh Iiri
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masaomi Nangaku
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Noriko Makita
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
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12
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Makita N, Manaka K, Sato J, Mitani K, Nangaku M, Iiri T. Bexarotene-induced hypothyroidism: Characteristics and therapeutic strategies. Clin Endocrinol (Oxf) 2019; 91:195-200. [PMID: 30903705 DOI: 10.1111/cen.13975] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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] [Received: 02/14/2019] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Central hypothyroidism (CH) is a well-known adverse effect of bexarotene treatment for cutaneous T-cell lymphoma (CTCL). While concomitant levothyroxine therapy is recommended in these cases, associations between ethnic variation or susceptibility and bexarotene-induced CH have not yet been reported. This study aimed to characterize the kinetics and dose dependency of bexarotene-induced CH in Japanese patients. DESIGN AND PATIENTS Sixty-six Japanese patients with CTCL were retrospectively investigated by evaluating thyroid function during the early phase of bexarotene therapy. RESULTS At one week after bexarotene initiation, TSH and FT4 values significantly declined. However, this effect was not bexarotene dose-dependent at least at the dose of 96-320 mg/m2 . Approximately 1 month later, 61 patients exhibited hypothyroidism at a relatively low dose of bexarotene (average 251 mg/m2 /day). Forty-five study cases showed this effect at 1 week. Simple regression analyses indicated that higher pretreatment TSH values (at a cut-off value of 1.30:73% sensitivity, 57% specificity) or lower normal (within the lower half of the reference range) pretreatment FT4 values (84% sensitivity, 57% specificity) were predictive of hypothyroidism at 1 week. The remaining 21 cases showed euthyroidism at 1 week, at which TSH values may roughly predict their thyroid function at 1 month (at a cut-off value of 0.05:100% sensitivity, 80% specificity). CONCLUSIONS Preventive treatment with levothyroxine is recommended for Japanese CTCL patients prior to bexarotene therapy. Minimally, it should be considered for patients with a pretreatment TSH above 1.30, a lower normal pretreatment FT4, or a TSH below 0.05 at 1 week.
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Affiliation(s)
- Noriko Makita
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Katsunori Manaka
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Junichiro Sato
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Koji Mitani
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Masaomi Nangaku
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Taroh Iiri
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
- Department of Pharmacology, St. Marianna University School of Medicine, Kanagawa, Japan
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13
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Takeuchi M, Sato J, Manaka K, Tanaka M, Matsui H, Sato Y, Kume H, Fukayama M, Iiri T, Nangaku M, Makita N. Molecular analysis and literature-based hypothesis of an immunonegative prostate small cell carcinoma causing ectopic ACTH syndrome. Endocr J 2019; 66:547-554. [PMID: 30918166 DOI: 10.1507/endocrj.ej18-0563] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Ectopic ACTH syndrome (EAS) due to a prostate small cell carcinoma (SCC) is very rare with only 26 cases reported to date and has a poor prognosis. We here describe another case of this disorder that was clinically typical based on prior reports as it showed hypercortisolemia and severe hypokalemia with multiple metastasis. However, our current case of prostate SCC causing EAS is the first to display negative immunostaining for ACTH despite detectable POMC mRNA expression in the primary lesion. ACTH immunonegativity is thought to be associated with a more aggressive disease course and a poorer prognosis although there are few studies of the underlying mechanisms. We explored two possibilities for this finding in our current patient: aberrant POMC processing prevented immunodetection with an anti-ACTH antibody; and the ACTH content per cell was below the threshold for immunodetection due to its rapid secretion or low synthesis. The aberrant processing theory was thought to be less likely because of immunonegative findings even using anti-POMC/ACTH antibodies. As the plasma ACTH levels in our patient were comparable with those reported for previous immunopositive prostate EAS cases, we speculated that the depletion of ACTH may be caused not only by rapid secretion but also by low production levels as a sign of de-differentiation. De-differentiation may therefore explain the mechanism underlying the negative correlation between immunoreactivity for ACTH in EAS and disease aggressiveness. We believe that our present findings will be of use in future prospective studies aimed at confirming the mechanism of immunonegativity.
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Affiliation(s)
- Maki Takeuchi
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Junichiro Sato
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Katsunori Manaka
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Mariko Tanaka
- Department of Pathology, The University of Tokyo, Tokyo, Japan
| | - Hotaka Matsui
- Department of Urology, The University of Tokyo, Tokyo, Japan
| | - Yusuke Sato
- Department of Urology, The University of Tokyo, Tokyo, Japan
| | - Haruki Kume
- Department of Urology, The University of Tokyo, Tokyo, Japan
| | | | - Taroh Iiri
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masaomi Nangaku
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Noriko Makita
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
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14
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Makita N, Ando T, Sato J, Manaka K, Mitani K, Kikuchi Y, Niwa T, Ootaki M, Takeba Y, Matsumoto N, Kawakami A, Ogawa T, Nangaku M, Iiri T. Cinacalcet corrects biased allosteric modulation of CaSR by AHH autoantibody. JCI Insight 2019; 4:126449. [PMID: 30996138 DOI: 10.1172/jci.insight.126449] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 03/12/2019] [Indexed: 12/13/2022] Open
Abstract
Biased agonism is a paradigm that may explain the selective activation of a signaling pathway via a GPCR that activates multiple signals. The autoantibody-induced inactivation of the calcium-sensing receptor (CaSR) causes acquired hypocalciuric hypercalcemia (AHH). Here, we describe an instructive case of AHH in which severe hypercalcemia was accompanied by an increased CaSR antibody titer. These autoantibodies operated as biased allosteric modulators of CaSR by targeting its Venus flytrap domain near the Ca2+-binding site. A positive allosteric modulator of CaSR, cinacalcet, which targets its transmembrane domain, overcame this autoantibody effect and successfully corrected the hypercalcemia in this patient. Hence, this is the first study to our knowledge that identifies the interaction site of a disease-causing GPCR autoantibody working as its biased allosteric modulator and demonstrates that cinacalcet can correct the AHH autoantibody effects both in vitro and in our AHH patient. Our observations provide potentially new insights into how biased agonism works and how to design a biased allosteric modulator of a GPCR. Our observations also indicate that the diagnosis of AHH is important because the severity of hypercalcemia may become fatal if the autoantibody titer increases. Calcimimetics may serve as good treatment options for some patients with severe AHH.
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Affiliation(s)
- Noriko Makita
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Takao Ando
- Division of Endocrinology and Metabolism, Nagasaki Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Junichiro Sato
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Katsunori Manaka
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Koji Mitani
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Yasuko Kikuchi
- Department of Breast and Endocrine Surgery, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Takayoshi Niwa
- Department of Breast and Endocrine Surgery, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Masanori Ootaki
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yuko Takeba
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Naoki Matsumoto
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Atsushi Kawakami
- Division of Endocrinology and Metabolism, Nagasaki Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Toshihisa Ogawa
- Breast Center, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - Masaomi Nangaku
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan
| | - Taroh Iiri
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo, Japan.,Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
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15
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Kiriyama H, Amiya E, Hatano M, Hosoya Y, Maki H, Nitta D, Saito A, Shiraishi Y, Minatsuki S, Sato T, Murakami H, Uehara M, Manaka K, Makita N, Watanabe M, Komuro I. Rapid Improvement of thyroid storm-related hemodynamic collapse by aggressive anti-thyroid therapy including steroid pulse: A case report. Medicine (Baltimore) 2017; 96:e7053. [PMID: 28562568 PMCID: PMC5459733 DOI: 10.1097/md.0000000000007053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 11/29/2022] Open
Abstract
RATIONALE Heart failure is relatively common in patients with hyperthyroidism, but thyrotoxic cardiomyopathy with poor left ventricular (LV) systolic function is very rare. PATIENT CONCERNS We experienced a representative case of a patient who presented with severe LV dysfunction related to thyroid storm and needed extracorporeal membrane oxygenation (ECMO) temporally. DIAGNOSIS Thyrotoxic cardiomyopathy. INTERVENTIONS AND OUTCOMES Aggressive antithyroid therapy, including steroid pulse to hyperthyroidism, leads to the dramatic improvement of cardiac function and she was successfully weaned from ECMO. LESSONS The most outstanding feature of the current case was the rapid decrease of cardiac injury and improvement of cardiac function by strengthening antithyroid therapy, including steroid pulse, without thyroid hormone level normalization. In thyroid storm, various systemic inflammatory reactions have different time courses and among them, the cardiac phenotype emerges in most striking and critical ways.
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Affiliation(s)
| | | | - Masaru Hatano
- Department of Cardiovascular Medicine
- Department of Therapeutic Strategy for Heart Failure
| | | | | | | | | | | | | | | | | | | | - Katsunori Manaka
- Department of Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Noriko Makita
- Department of Endocrinology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Makita N, Sato T, Yajima-Shoji Y, Sato J, Manaka K, Eda-Hashimoto M, Ootaki M, Matsumoto N, Nangaku M, Iiri T. Analysis of the V2 Vasopressin Receptor (V2R) Mutations Causing Partial Nephrogenic Diabetes Insipidus Highlights a Sustainable Signaling by a Non-peptide V2R Agonist. J Biol Chem 2016; 291:22460-22471. [PMID: 27601473 DOI: 10.1074/jbc.m116.733220] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 09/05/2016] [Indexed: 11/06/2022] Open
Abstract
Disease-causing mutations in G protein-coupled receptor (GPCR) genes, including the V2 vasopressin receptor (V2R) gene, often cause misfolded receptors, leading to a defect in plasma membrane trafficking. A novel V2R mutation, T273M, identified in a boy with partial nephrogenic diabetes insipidus (NDI), shows intracellular localization and partial defects similar to the two mutants we described previously (10). Although non-peptide V2R antagonists have been shown to rescue the membrane localization of V2R mutants, their level of functional rescue is weak. Interestingly, it has been reported that a non-peptide agonist, OPC51803, activates misfolded V2R mutants intracellularly without degradation, thus potentially serving as a therapeutic agent against NDI (14). In our current experiments, however, a peptide antagonist blocked arginine vasopressin (AVP)- or OPC51803-stimulated cAMP accumulation both in COS-7 and MDCK cells, suggesting that OPC51803 mainly stimulates cell surface V2R mutants. In addition, our analyses revealed that OPC51803 works not only as a non-peptide agonist that causes activation/β-arrestin-dependent desensitization of V2R mutants expressed at the plasma membrane but also as a pharmacochaperone that promotes the endoplasmic reticulum-retained mutant maturation and trafficking to the plasma membrane. The ratio of the pharmacochaperone effect to the desensitization effect likely correlates negatively with the residual function of the tested mutants, suggesting that OPC5 has a more favorable effect on the V2R mutants with a less residual function. We speculated that the canceling of the desensitization effect of OPC51803 by the pharmacochaperone effect after long-term treatment may produce sustainable signaling, and thus pharmacochaperone agonists such as OPC51803 may serve as promising therapeutics for NDI caused by misfolded V2R mutants.
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Affiliation(s)
- Noriko Makita
- From the Department of Endocrinology and Nephrology, University of Tokyo, Tokyo 113-8655, Japan,
| | - Tomohiko Sato
- the Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, 036-8562 Japan, and
| | - Yuki Yajima-Shoji
- From the Department of Endocrinology and Nephrology, University of Tokyo, Tokyo 113-8655, Japan
| | - Junichiro Sato
- From the Department of Endocrinology and Nephrology, University of Tokyo, Tokyo 113-8655, Japan
| | - Katsunori Manaka
- From the Department of Endocrinology and Nephrology, University of Tokyo, Tokyo 113-8655, Japan
| | - Makiko Eda-Hashimoto
- From the Department of Endocrinology and Nephrology, University of Tokyo, Tokyo 113-8655, Japan
| | - Masanori Ootaki
- the Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan
| | - Naoki Matsumoto
- the Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan
| | - Masaomi Nangaku
- From the Department of Endocrinology and Nephrology, University of Tokyo, Tokyo 113-8655, Japan
| | - Taroh Iiri
- From the Department of Endocrinology and Nephrology, University of Tokyo, Tokyo 113-8655, Japan, .,the Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan
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17
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Abstract
An early thirties man diagnosed with Erdheim-Chester disease (ECD) was simultaneously disclosed to have hypogonadotropic hypogonadism, central adrenal insufficiency, and GH deficiency in addition to central diabetes insipidus (CDI). Pituitary magnetic resonance imaging (MRI) showed swelling in the stalk, enlargement of the anterior lobe with delayed enhancement, and loss of high intensity of the posterior lobe on T1-weighted images, suggesting of pituitary involvement of ECD. Three months after starting treatment with interferon α and zoledronic acid, polyuria and polydipsia were ameliorated without DDAVP, accompanied with improvement of MRI. Simultaneously technetium-99m bone scintigraphy showed improvement, accompanied with a relief of bone pain and high fever. In contrast, he developed secondary hypothyroidism with slight enlargement of anterior pituitary gland without relapse of CDI, suggesting of different responses to treatment with interferon α between anterior pituitary lobe and posterior one. So far he continues to be replaced with deficient hormone replacement therapy. As for bone pain, it remains to be controlled with the decreased levels of bone resorption marker with decreased abnormal uptake in bone scintigraphy although zoledronic acid was discontinued for osteonecrosis of the jaw. For four years, he has not showed new involvement at other organs besides bones and the pituitary. While CDI is known to be very common in ECD, improvement of CDI has been reported in a few cases. Other endocrine manifestations, especially with detailed endocrine status, have been also reported in limited cases. Thus we report this case and review the literature.
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Affiliation(s)
- Katsunori Manaka
- Department of Endocrinology and Nephrology, The University of Tokyo School of Medicine, Tokyo 113-8655 Japan
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18
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Takahashi K, Makita N, Manaka K, Hisano M, Akioka Y, Miura K, Takubo N, Iida A, Ueda N, Hashimoto M, Fujita T, Igarashi T, Sekine T, Iiri T. V2 vasopressin receptor (V2R) mutations in partial nephrogenic diabetes insipidus highlight protean agonism of V2R antagonists. J Biol Chem 2011; 287:2099-106. [PMID: 22144672 DOI: 10.1074/jbc.m111.268797] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [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
Inactivating mutations of the V2 vasopressin receptor (V2R) cause cross-linked congenital nephrogenic diabetes insipidus (NDI), resulting in renal resistance to the antidiuretic hormone AVP. In two families showing partial NDI, characterized by an apparently normal response to diagnostic tests and an increase in the basal ADH levels suggesting AVP resistance, we have identified two V2R mutations, Ser-333del and Y128S. Both mutant V2Rs, when expressed in COS-7 cells, show partial defects in vasopressin-stimulated cAMP accumulation and intracellular localization. The inhibition of internalization does not rescue their localization. In contrast, the non-peptide V2R antagonists OPC41061 and OPC31260 partially rescue the membrane localization and basal function of these V2R mutants, whereas they inhibit the basal activity of the wild-type V2R. These results indicate that a partial loss of function of Ser-333del and Y128S mutant V2Rs results from defective membrane trafficking. These findings further indicate that V2R antagonists can act as protean agonists, serving as pharmacological chaperones for inactivating V2R mutants and also as inverse agonists of wild-type receptors. We speculate that this protean agonism could underlie the possible dual beneficial effects of the V2R antagonist: improvement of hyponatremia with heart failure or polycystic kidney disease and potential rescue of NDI.
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Affiliation(s)
- Kazuhiro Takahashi
- Department of Pediatrics, The University of Tokyo, Tokyo 113-8655, Japan
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19
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Makita N, Sato J, Manaka K, Shoji Y, Oishi A, Hashimoto M, Fujita T, Iiri T. An acquired hypocalciuric hypercalcemia autoantibody induces allosteric transition among active human Ca-sensing receptor conformations. Proc Natl Acad Sci U S A 2007; 104:5443-8. [PMID: 17372216 PMCID: PMC1838439 DOI: 10.1073/pnas.0701290104] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The seven-spanning calcium-sensing receptor (CaSR) activates multiple G proteins including Gq and Gi, and thereby activates a variety of second messengers and inhibits parathyroid hormone (PTH) secretion. However, the exact signaling mechanisms underlying the functional activity of CaSR are not yet fully understood. The heterozygous inactivation of CaSR or its inhibition by antibody blocking results in either familial hypocalciuric hypercalcemia or acquired hypocalciuric hypercalcemia (AHH), respectively. Here, we report the identification of a unique CaSR autoantibody in an AHH patient. Paradoxically, we find that this autoantibody potentiates the Ca(2+)/Gq-dependent accumulation of inositol phosphates by slightly shifting the dose dependence curve of the Ca(2+) mediated activation of phosphatidylinositol turnover to the left, whereas it inhibits the Ca(2+)/Gi-dependent phosphorylation of ERK1/2 in HEK293 cells stably expressing human CaSR. Treatment of these same cells with a calcimimetic, NPS-R-568, augments the CaSR response to Ca(2+), increasing phosphatidylinositol turnover and ERK1/2 phosphorylation, and overcoming the autoantibody effects. Our observations thus indicate that a calcium-stimulated CaSR primed by a specific autoantibody adopts a unique conformation that activates Gq but not Gi. Our findings also suggest that CaSR signaling may act via both Gq and Gi to inhibit PTH secretion. This is the first report of a disease-related autoantibody that functions as an allosteric modulator and maintains G protein-coupled receptors (GPCRs) in a unique active conformation with its agonist. We thus speculate that physiological modulators may exist that enable an agonist to specifically activate only one signaling pathway via a GPCR that activates multiple signaling pathways.
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Affiliation(s)
- Noriko Makita
- Department of Endocrinology and Nephrology, University of Tokyo School of Medicine 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Junichiro Sato
- Department of Endocrinology and Nephrology, University of Tokyo School of Medicine 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Katsunori Manaka
- Department of Endocrinology and Nephrology, University of Tokyo School of Medicine 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yuki Shoji
- Department of Endocrinology and Nephrology, University of Tokyo School of Medicine 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Atsuro Oishi
- Department of Endocrinology and Nephrology, University of Tokyo School of Medicine 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Makiko Hashimoto
- Department of Endocrinology and Nephrology, University of Tokyo School of Medicine 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Toshiro Fujita
- Department of Endocrinology and Nephrology, University of Tokyo School of Medicine 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Taroh Iiri
- Department of Endocrinology and Nephrology, University of Tokyo School of Medicine 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
- *To whom correspondence should be addressed. E-mail:
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20
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Manaka K, Makita N, Iiri T. [G protein genes and hypertension]. Nihon Rinsho 2006; 64 Suppl 5:407-10. [PMID: 16895206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
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21
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Imai T, Inoue S, Kuzuhara K, Hosoya Y, Honda M, Takasaki E, Yoshida KI, Manaka K, Nishimura Y, Bekku Y, Tomikawa S, Nagao T, Uchida H. Immunosuppressive effect of bactobolamine on in vitro lymphocyte alloactivation: synergism with cyclosporine. Transplant Proc 2000; 32:2060-2. [PMID: 11120066 DOI: 10.1016/s0041-1345(00)01558-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T Imai
- Kidney Center, Toranomon Hospital, Tokyo, Japan
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22
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Oda S, Igarashi Y, Manaka K, Koibuchi N, Sakai-Sawada M, Sakai K, Morisawa M, Ohtake H, Shimizu N. Sperm-activating proteins obtained from the herring eggs are homologous to trypsin inhibitors and synthesized in follicle cells. Dev Biol 1998; 204:55-63. [PMID: 9851842 DOI: 10.1006/dbio.1998.9056] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The activation of sperm motility by the egg is an ubiquitous phenomenon in the animal kingdom, but the molecules by which the egg activates sperm motility have been clarified in only a few invertebrate species. In the Pacific herring, Clupea pallasii, mature unfertilized eggs release the sperm-activating proteins which are prerequisite to successful fertilization. Complementary DNA clones encoding herring sperm-activating proteins were isolated from a herring ovarian complementary DNA library and amino acid sequences were deduced. The herring sperm-activating protein(s) is a secretory product(s) with a strong homology to Kazal-type trypsin inhibitors, such as mammalian acrosin inhibitors. The sperm-activating proteins were globally distributed in the outermost layer of the egg chorion and its gene was found to be expressed in the follicle cells which surround developing oocytes. These results suggest that in the Pacific herring, trypsin inhibitor-like proteins are synthesized in the follicle cells, secreted, accumulated in the egg chorion during oocyte development, and released into the milieu at spawning to activate the motility of spermatozoa at the time of gamete interaction.
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Affiliation(s)
- S Oda
- School of Science, University of Tokyo, Kanagawa, Miura, 238-0225, Japan
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23
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Yasuda T, Sawa S, Ishikawa N, Tanaka N, Manaka K, Nakagawa K, Kanakubo K, Hikimoto T, Kawasuji M, Watanabe Y. [Clinical effect of high-flow pulsatile cardiopulmonary bypass in coronary artery bypass grafting]. Kyobu Geka 1997; 50:1091-4. [PMID: 9404106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The effect of high-flow pulsatile cardiopulmonary bypass was evaluated in 36 patients undergoing coronary artery bypass grafting in our unit. The patients were divided into two groups, based on cardiopulmonary bypass (CPB) flow; high (3.0 +/- 0.2 l/min/m2), or moderate (2.4 +/- 0.2 l/min/m2). Multidose cold crystalloid cardioplegia was administered for myocardial protection. Pulsatile flow during CPB was used and systemic perfusion pressure was maintained between 50 and 80 mmHg. Preoperatively, there were no differences between groups in left ventricular ejection fraction or extent of coronary artery disease. The times required for CPB and weaning from CPB were significantly shorter in high-flow group than moderate-flow group. The urinary output during CPB was significantly higher in high-flow group than moderate-flow group. Postoperatively, there were no significant differences in the incidence of myocardial infarction, stroke, or 30-day mortality between groups. In conclusion, high-flow pulsatile CPB shortens the length of CPB and does not differ significantly from moderate-flow with respect to mortality and morbidity.
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Affiliation(s)
- T Yasuda
- Division of Thoracic and Cardiovascular Surgery, Yokohama Sakae Kyosai Hospital, Japan
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Kasai K, Banba N, Motohashi S, Fukuda H, Manaka K, Matsumura M, Sekiguchi Y, Hattori Y. Production of granulocyte/macrophage and macrophage colony-stimulating factors by human thyrocytes in culture. Biochem Biophys Res Commun 1997; 238:191-6. [PMID: 9299477 DOI: 10.1006/bbrc.1997.7244] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Monocytes/macrophages can be activated by the colony-stimulating factors (CSFs), granulocyte/macrophage CSF and macrophage CSF, and play a pivotal role in immune and inflammatory responses. We examined whether human thyrocytes can produce these CSFs. Interleukin-1 (IL-1) strongly up-regulated the gene and protein expression of the two CSFs. Interferon-gamma stimulated M-CSF expression but inversely suppressed GM-CSF expression in either basal or IL-1-stimulated condition. Thyrocytes prepared from Graves' thyroid tissues produced relatively larger amounts of GM-CSF in response to IL-1 and M-CSF in both basal and IL-1-stimulated conditions when compared to those obtained from normal and adenomatous goiter thyroid tissues. Thyrotropin attenuated M-CSF, but not GM-CSF, production. The present finding indicates that human thyrocytes themselves produce both GM-CSF and M-CSF, and thus may participate in immune and inflammatory responses through these CSFs production.
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Affiliation(s)
- K Kasai
- Department of Endocrinology, Internal Medicine, Dokkyo University School of Medicine, Tochigi, Japan.
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25
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Maezawa H, Manaka K, Yamakawa K, Ogawa K, Iizuka M. Decreased sulfhydryl groups in the reperfused myocardial tissue of a rat model of myocardial infarction. Jpn Circ J 1997; 61:151-60. [PMID: 9070971 DOI: 10.1253/jcj.61.151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The aim of this study was to determine whether myocardial injury resulting from temporary ischemia followed by reperfusion can be measured by assaying sulfhydryl groups in the affected tissue of a rat model of myocardial infarction. We studied 3 groups: a control group (n = 6), which underwent surgery without left coronary artery (LCA) ligation; group NoR (n = 9), in which the LCA was ligated for 3 h; and group I + R (n = 7), in which 30 min LCA ligation was followed by 3 h reperfusion. The sulfhydryl group content of myocardial tissue was assayed by measuring the fluorescence produced by incubating heart sections with N-(7-dimethylamino-4-methyl-3-coumarinyl) maleimide (DACM), which binds sulfhydryl groups. The fluorescence intensity (FI) of normal and infarcted myocardium was quantified by our computerized system of microscopic fluorophotometry. Indices such as sulfhydryl group content, the size of the low-FI area [% AREA(lower FI)] and the relative decrease in FI [%FI(decrease)]) in the infarct zone were calculated. Both %AREA(lower FI) and %FI(decrease) were significantly higher in the infarcted zone of animals in NoR and I + R groups than in control animals. Both indices were higher in infarct tissue from animals in the I + R group than in the NoR group. These changes suggest that sulfhydryl group content is significantly reduced in tissue that has been subjected to ischemia-reperfusion. Microscopic fluorophotometry, as defined by DACM staining of myocardial tissue, may help to delineate areas of myocardial reperfusion injury.
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Affiliation(s)
- H Maezawa
- First Department of Medicine, Dokkyo University School of Medicine, Tochigi, Japan
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26
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Motojima S, Adachi T, Manaka K, Arima M, Fukuda T, Makino S. Eosinophil peroxidase stimulates the release of granulocyte-macrophage colony-stimulating factor from bronchial epithelial cells. J Allergy Clin Immunol 1996; 98:S216-23. [PMID: 8977530 DOI: 10.1016/s0091-6749(96)70069-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Asthma is characterized by an accumulation of activated eosinophils in the airway. Eosinophil viability-enhancing activity is present in the sputum of patients with asthma, largely because of granulocyte-macrophage colony-stimulating factor (GM-CSF). Bronchial epithelial cells have been shown to release cytokines including GM-CSF when stimulated with IL-1 beta or tumor necrosis factor-alpha. OBJECTIVE The study was designed to determine whether eosinophil peroxidase (EPO) stimulates the release of GM-CSF from bronchial epithelial cells. METHODS Epithelial cells (BEAS-2B) were cultured in serum free HD-F12 medium in a 24-well tissue culture plate until they became confluent. The cells were then exposed to EPO (5.9 x 10(-8) to 5.9 x 10(-7) mol/L) for 15 minutes, washed twice, and cultured in 1 ml of HD-F12. The supernatants were harvested at 3, 6, or 24 hours, and GM-CSF concentration was measured by ELISA. BEAS-2B cells were also treated with a system comprising EPO (1.9 x 10(-9) to 5.9 x 10(-8) mol/L) + 10(-5) mol/L H2O2 + 10(-4) mol/L Br for 24 hours. RESULTS The GM-CSF concentration in the supernatant pretreated with EPO increased in a time- and concentration-dependent manner compared with control. The release of GM-CSF was not inhibited by catalase but was inhibited by cyclohexamide and by mixing of EPO with heparin, suggesting that the action is due to the cationic property of EPO. When EPO was combined with H2O2 and Br, 5.9 x 10(-9) mol/L EPO + 10(-5) mol/L H2O2 released two times more GM-CSF into the supernatants compared with control. CONCLUSION These results suggest that EPO stimulates epithelial cells to release GM-CSF and forms a self-stimulatory cycle.
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Affiliation(s)
- S Motojima
- Department of Medicine and Clinical Immunology, Dokkyo University School of Medicine, Tochigi, Japan
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27
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Kasai K, Banba N, Motohashi S, Hattori Y, Manaka K, Shimoda SI. Expression of monocyte chemoattractant protein-1 mRNA and protein in cultured human thyrocytes. FEBS Lett 1996; 394:137-40. [PMID: 8843151 DOI: 10.1016/0014-5793(96)00935-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Monocytes as well as lymphocytes infiltrate in the stroma of thyroid tissue in autoimmune and destructive thyroiditis. Monocyte chemoattractant protein-1 (MCP-1) is a cytokine that attracts T-lymphocytes as well as monocytes. Using human thyrocytes in primary cultures, we show that expression of MCP-1 mRNA and protein is remarkably stimulated by both interleukin-1 (IL-1) and tumor necrosis factor-alpha (TNF-alpha), and also that interferon-gamma (IFN-gamma) by itself is a weak stimulant but has a synergistic activity with either IL-1 or TNF-alpha. The finding indicates that MCP-1 can be produced by thyrocytes themselves, suggesting a possible role of thyrocytes on accumulation of monocytes and T-lymphocytes to the tissue from the blood in autoimmune and destructive thyroiditis.
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Affiliation(s)
- K Kasai
- Department of Endocrinology, Internal Medicine, Dokkyo University School of Medicine, Mibu, Tochigi, Japan
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28
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Kasai K, Hattori Y, Nakanishi N, Manaka K, Banba N, Motohashi S, Shimoda S. Regulation of inducible nitric oxide production by cytokines in human thyrocytes in culture. Endocrinology 1995; 136:4261-70. [PMID: 7545102 DOI: 10.1210/endo.136.10.7545102] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [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] [Indexed: 01/25/2023]
Abstract
We now report on the induction and modulation of NO production by cytokines in primary cultures of human thyrocytes and the effect of NO on iodine organification by human open thyroid follicles in the process of thyroid hormone biosynthesis. Although unstimulated thyrocytes produced little NO (measured as nitrite), interleukin-1 alpha or beta (IL-1 alpha/beta) substantially increased NO formation. Interferon-gamma (IFN-gamma) by itself failed to stimulate NO formation but markedly increased the IL-1-stimulated NO production. Tumor necrosis factor-alpha alone did not induce NO production but did so slightly in the presence of IFN-gamma. Induction of NO formation by thyrocytes upon stimulation with IL-1 alpha + IFN-gamma was accompanied by the synthesis of tetrahydrobiopterin (BH4), an obligatory cofactor of NOS. Coinduction of NO and BH4 synthesis in thyrocytes was preceded by coexpression of messenger RNAs for NOS and GTP cyclohydrolase I (GTPCH), the rate-limiting enzyme for de novo synthesis of BH4. NO synthesis was prevented by an inhibitor of GTPCH, 2,4-diamino-6-hydroxypyrimidine, and this inhibition was completely reversed by administration of sepiapterin, a substrate for BH4 synthesis via pterin salvage pathway. In contrast to IFN-gamma, some cytokines such as interferon-alpha, IL-4, and transforming growth factor-beta 1 inhibited the IL-1-induced NO production. Finally, a possible role of NO on thyroid hormone synthesis was investigated. Iodine organification by human open thyroid follicles was inhibited by two kinds of NO donor but not by cell permeable cyclicGMP analog. Thus, cytokines such as IL-1, IL-1/IFN-gamma, and tumor necrosis factor-alpha/IFN-gamma stimulate human thyrocytes to produce NO; this process can be modulated by other cytokines and coregulated with a cofactor BH4 biosynthesis, and resulting NO may affect cell function including thyroid hormone synthesis.
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Affiliation(s)
- K Kasai
- Department of Endocrinology, Dokkyo University School of Medicine, Tochigi, Japan
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29
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Arima M, Manaka K, Fukuda T, Makino S. Role of platelet-activating factor in the release of neutrophil and eosinophil chemotactic attractants from cultured guinea-pig tracheal epithelial cells. Int Arch Allergy Immunol 1995; 108 Suppl 1:19-24. [PMID: 7549514 DOI: 10.1159/000237194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Platelet-activating factor (PAF) has been implicated in the pathogenesis of allergic disease, particularly bronchial asthma, by recruitment and activation of inflammatory cells. In an effort to further elucidate this function of PAF, guinea-pig tracheal mucosa was cultured in the presence of PAF in vitro, and culture supernatants were injected intradermally into normal guinea-pigs. After 6 h, recruitment of the inflammatory cells in the tissue was evaluated as a marker of chemotactic activity. Neutrophil and eosinophil recruitment increased significantly 1 h after PAF stimulation, the latter more than the former. After fractionation of the culture supernatant using molecular sieve filters, the fraction of 10-30 kDa showed greater chemotactic activity than the fractions of below 10 kDA or greater than 30 kDA. This activity was inhibited in a dose-dependent manner (over about 1-100 mg/ml) by treatment with anti-granulocyte-macrophage colony-stimulating factor (GM-CSF) antibody. These results suggest that PAF induces the release of chemotactic factors for neutrophils and eosinophils from guinea-pig tracheal epithelial cells, and one of these factors may be GM-CSF.
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Affiliation(s)
- M Arima
- Department of Allergy and Clinical Immunology, Dokkyo University School of Medicine, Tochigi, Japan
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30
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Jin ZX, Inaba K, Manaka K, Morisawa M, Hayashi H. Monoclonal antibodies against the protein complex that contains the flagellar movement-initiating phosphoprotein of Oncorhynchus keta. J Biochem 1994; 115:885-90. [PMID: 7961603 DOI: 10.1093/oxfordjournals.jbchem.a124435] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
We isolated and characterized several monoclonal antibodies against a protein complex containing the flagellar movement-initiating phosphoprotein (MIPP) that appears to play a crucial role in the initiation of flagellar movement in quiescent spermatozoa of Salmonid fish. The effects of the antibodies on the phosphorylation of MIPP, as well as on the initiation of movement, in model sperm cells were studied. Three monoclonal antibodies, namely, FMI7, FMI18, and FMI27, were found specifically to inhibit both the initiation of flagellar movement and the phosphorylation of MIPP. These antibodies did not recognize denatured MIPP; they only recognized the native antigen. FMI7 exclusively recognized the denatured form of a 38-kDa protein, which may possibly be a protein kinase responsible for the phosphorylation of MIPP. Immunofluorescence analysis in situ of model sperm cells with the antibodies showed that the antigen was localized predominantly in the basal structure of the spermatozoon. Thus, the results clearly demonstrate the involvement of MIPP in the initiation of flagellar movement and the control of flagellar motility.
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Affiliation(s)
- Z X Jin
- Sugashima Marine Biological Laboratory, School of Science, Nagoya University, Mie
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Abstract
A cancer-associated, high-molecular-weight glycoprotein antigen (6B3.Ag) recognized by monoclonal antibody 6B3 was purified from culture medium of human large cell lung carcinoma cell line (HLC-2) and characterized biochemically and immunochemically. The 6B3.Ag was purified more than 1,200-fold with a yield of 30% by salting out, precipitation by acidification at pH 4.5, and chromatographies on Sepharose 4B and concanavalin A-Sepharose. The molecular weight of 6B3.Ag is approximately 1,000,000 and the molecule is a homodecamer of 94,000 subunits. The 6B3.Ag is a glycoprotein containing 22.9% sugars, consisting of both N- and O-glycoside chains. The N-terminal 19 amino acids were determined and only 4 out of 19 amino acid residues were different from those of an antigen, L3, secreted by lung carcinoma cell line Calu-1. The serum level of 6B3.Ag was determined in normal adults as well as patients with various diseases by enzyme-linked immunosorbent assay. The mean serum level of 6B3.Ag was 3.1 micrograms/ml, ranging from 1.6 to 6.2 micrograms/ml in 131 healthy adults. When the cut-off value was set at 6.2 micrograms/ml, the incidence of positive values in the sera was elevated not only in malignant diseases such as hepatoma (73%) and leukemia (62%), but also in benign diseases such as chronic hepatitis (42%) and liver cirrhosis (63%). While the incidence of positive values was elevated in advanced liver diseases, namely, chronic hepatitis, liver cirrhosis and hepatoma, the cancer specificity of 6B3.Ag did not appear to be high.
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Kobayashi K, Manaka K, Ebihara Y, Funazu Y, Ueno M, Funazu K, Mizuno Y, Takeuchi M, Serizawa H, Miura S. [A case of Schönlein-Henoch purpura complicated with protein-losing enteropathy and hyperamylasemia]. Nihon Shokakibyo Gakkai Zasshi 1991; 88:2171-6. [PMID: 1724475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- K Kobayashi
- Department of Internal Medicine, Tokyo Dental College, Ichikawa General Hospital, Chiba
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Watanabe G, Ohira M, Takemura H, Manaka K, Tanaka N, Iwa T. [A successful case of surgically treated myocardial bridging associated with mitral stenosis]. Kyobu Geka 1988; 41:151-4. [PMID: 3361712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Kawamoto C, Ido K, Terada T, Horiguchi M, Kimura K, Manaka K. [Photodynamic effects of various types of porphyrins on cultured hepatocellular carcinoma cells (JTC-16): a fundamental study of porphyrin photodynamic therapy]. Nihon Shokakibyo Gakkai Zasshi 1985; 82:261-9. [PMID: 3999444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Kawamoto C, Ido K, Horiguchi M, Kimura K, Manaka K. [Effects of hematoporphyrine derivative (HpD) and laser irradiation on rat hepatoma cells in vitro]. Nihon Shokakibyo Gakkai Zasshi 1983; 80:240. [PMID: 6865070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Taguchi YH, Tabachnick J, Manaka K. Effect of needle puncture and intradermal fluid injection on epidermal cell kinetics of albino guinea-pig skin. Arch Dermatol Res 1976; 255:83-92. [PMID: 1259468 DOI: 10.1007/bf00581681] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The flanks of male albino guinea pigs were used to study the effect of needle puncture with or without intradermal (id) injection of 0.1 ml fluid. The center of the raised bleb was marked and biopsies taken 1,4,8,24,50 and 72 hrs after needle puncture and 1 hr after intraperitoneal (ip) injection of tritiated thymidine (3H-TdR). There were no significant differences in labeling index (LI) or mitotic index (MI) 1 hr after id, ip, or subcutaneous (sc) injection nor in percent labeled mitoses, 7 hrs after id or ip injection. The earliest increase in LI (180% above control) occurred 12 hrs after needle puncture, peaked at 24 hrs (ca. 3X control), and returned to control level by 50 hrs. The area affected had a radius of about 5 mm from the point of needle entry or center of the bleb. Within 12 hrs after needle puncture, there was an increase in labeled cells primarily at the periphery of the bleb area, about 4 mm from the point of needle entry. By 24 hrs, the distribution of labeled cells had moved toward the bleb center (LI = 65%). The first increase in mitoses (MI = 2.5%) was seen 24 hrs after needle puncture. It is concluded that id injection introduces no significant error in LI or MI to 8 hrs after needle puncture. It does, however, trigger many noncycling basal cells into DNA synthesis after 8 hrs, and this may increase the rate of transit of these cells to the granular layer.
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