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Ito S, Higashiyama M, Nishimura H, Tomioka A, Tanemoto R, Nishii S, Mizoguchi A, Akita Y, Okada Y, Kurihara C, Narimatsu K, Komoto S, Tomita K, Hokari R. The role of gut microbiota and innate immune response in an autoimmune pancreatitis model. Pancreas 2024:00006676-990000000-00148. [PMID: 38696351 DOI: 10.1097/mpa.0000000000002339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
BACKGROUND Although the involvement of intestinal microbiota in innate immunity has been reported recently, the pathogenicity of autoimmune pancreatitis (AIP) remains unclear. This study aimed to investigate whether probiotics ameliorate inflammation in AIP through interactions with innate immunity. METHODS The AIP mouse model was generated by intraperitoneal administration of E. coli to C56BL/6 female mice. Alterations in the intestinal microbiota in the AIP group were evaluated using high-throughput sequencing. Peritoneal macrophages (PMs) were collected and cocultured in vitro with Lactobacillus gasseri (LG) or ligands of toll-like receptors (TLRs). LG was administered intraperitoneally to AIP model mice, and pancreatitis activity was evaluated to examine the ameliorative effects of LG. RESULTS In the AIP model mice, inflammation was significantly induced in the pancreas, and the intestinal microbiota was altered with decreased LG. Antimicrobial treatment suppressed pancreatitis. In vitro, E. coli stimulation increased inflammatory cytokine expression, which was significantly decreased when the LG or TLR7 ligand was cocultured with PMs. Intraperitoneal administration of LG to AIP model mice significantly suppressed pancreatitis. CONCLUSION The mouse model demonstrated the involvement of intestinal microbiota in pancreatitis, and LG administration suppressed pancreatitis, possibly through TLR7 signaling in PMs. LG may be a helpful probiotic for treating AIP.
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Affiliation(s)
- Suguru Ito
- Department of Internal medicine, National Defense Medical College, Saitama, Japan
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Mizoguchi A, Higashiyama M, Wada A, Nishimura H, Tomioka A, Ito S, Tanemoto R, Nishii S, Inaba K, Sugihara N, Hanawa Y, Horiuchi K, Okada Y, Kurihara C, Akita Y, Narimatu K, Komoto S, Tomita K, Kawauchi S, Sato S, Hokari R. Visceral hypersensitivity induced by mild traumatic brain injury via the corticotropin-releasing hormone receptor: An animal model. Neurogastroenterol Motil 2023; 35:e14634. [PMID: 37357384 DOI: 10.1111/nmo.14634] [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: 11/27/2022] [Revised: 03/30/2023] [Accepted: 06/12/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND Mild blast-induced traumatic brain injury (bTBI) induces various gut symptoms resembling human irritable bowel syndrome (IBS) as one of mental and behavioral disorders. However, the underlying mechanisms remain unclear. We investigated whether the extremely localized brain impact extracranially induced by laser-induced shock wave (LISW) evoked IBS-like phenomenon including visceral hypersensitivity and intestinal hyperpermeability in rats. METHODS The rats were subjected to LISW on the scalp to shock the entire brain. Visceral hypersensitivity was evaluated by the threshold pressure of abdominal withdrawal reflex (AWR) using a colorectal distension test. Permeability was evaluated by the concentration of penetrating FITC-dextran from intestine and the mRNA expression levels of tight junction family proteins. Involvement of corticotropin-releasing factor receptor (CRFR) 1 and 2 was examined by evaluating mRNA expression and modulating CRFR function with agonist, recombinant CRF (10 μg/kg), and antagonist, astressin (33 μg/kg). High-throughput sequencing of the gut microbiota was performed by MiSeqIII instrument and QIIME tool. KEY RESULTS The thresholds of the AWR were significantly lowered after LISW. Permeability was increased in small intestine by LISW along with decreased expression of tight junction ZO-1. LISW significantly increased CRFR1 expression and decreased CRFR2 expression. Visceral hypersensitivity was significantly aggravated by CRFR agonist and suppressed by CRFR antagonist. The α- and β-diversity of the fecal microbiota was altered after LISW. CONCLUSIONS AND INFERENCES LISW provoked visceral hypersensitivity, small intestinal hyperpermeability, altered expression of CRFRs and changes in the microbiota, suggesting that genuine bTBI caused by LISW can induce a pathophysiology comparable to that of human IBS.
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Affiliation(s)
- Akinori Mizoguchi
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Masaaki Higashiyama
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Akinori Wada
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Hiroyuki Nishimura
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Akira Tomioka
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Suguru Ito
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Rina Tanemoto
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Shin Nishii
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Kenichi Inaba
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Nao Sugihara
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Yoshinori Hanawa
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Kazuki Horiuchi
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Yoshikiyo Okada
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Chie Kurihara
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Yoshihiro Akita
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Kazuyuki Narimatu
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Shunsuke Komoto
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Kengo Tomita
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Satoko Kawauchi
- Division of Bioinformation and Therapeutic Systems, National Defense Medical College Research Institute, Saitama, Japan
| | - Shunichi Sato
- Division of Bioinformation and Therapeutic Systems, National Defense Medical College Research Institute, Saitama, Japan
| | - Ryota Hokari
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
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Sugihara N, Okada Y, Tomioka A, Ito S, Tanemoto R, Nishii S, Mizoguchi A, Inaba K, Hanawa Y, Horiuchi K, Wada A, Akita Y, Higashiyama M, Kurihara C, Komoto S, Tomita K, Hokari R. Probiotic Yeast from Miso Ameliorates Stress-Induced Visceral Hypersensitivity by Modulating the Gut Microbiota in a Rat Model of Irritable Bowel Syndrome. Gut Liver 2023:gnl220100. [PMID: 37291901 DOI: 10.5009/gnl220100] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 12/18/2022] [Accepted: 01/26/2023] [Indexed: 06/10/2023] Open
Abstract
Background/Aims Recent studies indicate that probiotics, which have attracted attention as a treatment for irritable bowel syndrome, affect intestinal homeostasis. In this study, we investigated whether Zygosaccharomyces sapae (strain I-6), a probiotic yeast isolated from miso (a traditional Japanese fermented food), could improve irritable bowel syndrome symptoms. Methods Male Wistar rats were exposed to water avoidance stress (WAS). The number of defecations during WAS and the visceral hypersensitivity before and after WAS were evaluated using colorectal distension. Tight junction changes were assessed by Western blotting. Some rats were fed with strain I-6 or β-glucan from strain I-6. Changes in the intestinal microbiota were analyzed. The effect of fecal microbiota transplantation after WAS was evaluated similarly. Caco-2 cells were stimulated with interleukin-1β and tight junction changes were investigated after coculture with strain I-6. Results The increased number of stool pellets and visceral hypersensitivity induced by WAS were suppressed by administering strain I-6. The decrease in tight junction protein occludin by WAS was reversed by the administration of strain I-6. β-Glucan from strain I-6 also suppressed those changes induced by WAS. In the rat intestinal microbiota, treatment with strain I-6 altered the β-diversity and induced changes in bacterial occupancy. Upon fecal microbiota transplantation, some symptoms caused by WAS were ameliorated. Conclusions These results suggest that traditional fermented foods such as miso in Japan are valuable sources of probiotic yeast candidates, which may be useful for preventing and treating stress-induced visceral hypersensitivity.
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Affiliation(s)
- Nao Sugihara
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Yoshikiyo Okada
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Akira Tomioka
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Suguru Ito
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Rina Tanemoto
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Shin Nishii
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Akinori Mizoguchi
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Kenichi Inaba
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Yoshinori Hanawa
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Kazuki Horiuchi
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Akinori Wada
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Yoshihiro Akita
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Masaaki Higashiyama
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Chie Kurihara
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Shunsuke Komoto
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Kengo Tomita
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Ryota Hokari
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
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Inaba K, Higashiyama M, Watanabe C, Tomioka A, Ito S, Tanemoto R, Mizoguchi A, Nishii S, Wada A, Sugihara N, Hanawa Y, Horiuchi K, Akita Y, Okada Y, Kurihara C, Narimatsu K, Komoto S, Tomita K, Karasuyama H, Satoh T, Hokari R. Proinflammatory role of basophils in oxazolone-induced chronic intestinal inflammation. J Gastroenterol Hepatol 2022; 37:1768-1775. [PMID: 35877196 DOI: 10.1111/jgh.15964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 04/14/2021] [Revised: 07/11/2022] [Accepted: 07/19/2022] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND AIM The functions of basophils have not been elucidated until recently because of their rarity. However, with recent developments in basophil-specific antibodies and basophil-deficient animals, the roles of basophils in various diseases related to chronic inflammation have been clarified. In this study, we aimed to investigate the roles of basophils in human ulcerative colitis (UC) and oxazolone (OXA) colitis using genetically engineered Mcpt8DTR mice. METHODS Immunohistochemical staining of human colon specimens was performed to examine the involvement of basophils in the pathogenesis of UC. We examined the correlation between the number of infiltrating basophils and the UC endoscopic index of severity (UCEIS), Mayo score, and Matts score. We also examined the correlation between eosinophil count and basophil infiltration. In murine experiments, we examined whether basophil infiltration was involved in OXA-induced colitis and whether basophil depletion improved inflammation in Mcpt8DTR mice. RESULTS Colonic basophil infiltration was significantly increased in patients with UC. There were significant correlations between UCEIS, Mayo score, Matts score, and the number of infiltrating basophils. In murine OXA-induced colitis, a significant increase in basophil infiltration was observed. When basophils were depleted by diphtheria toxin in Mcpt8DTR mice, inflammation improved significantly and mRNA expression of some proinflammatory cytokines, including Tnf-α and Ifn-γ decreased significantly. CONCLUSION Basophil infiltration correlated with endoscopic, clinical, and pathological scores in human UC independently of eosinophil infiltration, and depletion of basophils ameliorated mucosal inflammation in murine OXA-induced colitis, collectively suggesting that basophils exert a proinflammatory role in chronic intestinal inflammation such as UC.
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Affiliation(s)
- Kenichi Inaba
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Masaaki Higashiyama
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Chikako Watanabe
- International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | - Akira Tomioka
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Suguru Ito
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Rina Tanemoto
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Akinori Mizoguchi
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Shin Nishii
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Akinori Wada
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Nao Sugihara
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Yoshinori Hanawa
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Kazuki Horiuchi
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Yoshihiro Akita
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Yoshikiyo Okada
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Chie Kurihara
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Kazuyuki Narimatsu
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Shunsuke Komoto
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Kengo Tomita
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
| | - Hajime Karasuyama
- Inflammation, Infection and Immunity Laboratory TMDU Advanced Research Institute Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiro Satoh
- Department of Dermatology, National Defense Medical College, Saitama, Japan
| | - Ryota Hokari
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
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Miyazaki R, Sakurai T, Shimada M, Iwashita Y, Shibuya N, Akita Y, Miyashita H, Maruyama Y, Saruta M. Correction: Bowel frequency (night) and urgent defecation are improved by budesonide foam in patients with ulcerative colitis: a retrospective observational study. BMC Gastroenterol 2022; 22:397. [PMID: 36008754 PMCID: PMC9413911 DOI: 10.1186/s12876-022-02445-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Ryosuke Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Toshiyuki Sakurai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Mariko Shimada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yuko Iwashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Naoki Shibuya
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yoshihiro Akita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Haruna Miyashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yuki Maruyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan.
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Miyazaki R, Sakurai T, Shimada M, Iwashita Y, Shibuya N, Akita Y, Miyashita H, Maruyama Y, Saruta M. Bowel frequency (night) and urgent defecation are improved by budesonide foam in patients with ulcerative colitis: a retrospective observational study. BMC Gastroenterol 2022; 22:310. [PMID: 35751039 PMCID: PMC9233394 DOI: 10.1186/s12876-022-02388-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 06/16/2022] [Indexed: 01/14/2023] Open
Abstract
Introduction Patients with ulcerative colitis (UC) are known to have a significantly poor quality of life due to bowel frequency (night) and urgent defecation. Budesonide foam is a topical medication that was approved in Japan in 2017 for the treatment of UC. However, its efficacy in the treatment of bowel frequency (night) or urgent defecation is unknown. This study aimed to explore the efficacy of budesonide foam for the alleviation of these symptoms. Methods UC patients who received budesonide foam between December 2017 and January 2020 at the Jikei University School of Medicine in Tokyo were enrolled. The simple clinical colitis activity index (SCCAI) was evaluated at the start of budesonide foam treatment and 2 and 6 weeks later in patients who initially scored ≥ 1 for bowel frequency (night) and urgent defecation, respectively. We also studied the effect of budesonide foam on remaining symptoms in patients who had used 5-aminosalicylic acid (5-ASA) topical treatment, those with SCCAI ≥ 3, and those in remission with residual symptoms (SCCAI 1 or 2). Results Of the 233 enrolled patients, 102 were eligible for the study. In 36 patients with bowel frequency (night) treated with budesonide foam were significantly effective, score in SCCAI decreased from 1.17 ± 0.45 at baseline to 0.53 ± 0.61 at week 2 (p < 0.0001) and 0.17 ± 0.38 at week 6 (p < 0.0001). In 45 patients with urgent defecation score in SCCAI decreased significantly from 1.33 ± 0.52 at baseline to 0.44 ± 0.59 at week 2 (p < 0.0001) and 0.22 ± 0.40 at week 6 (p < 0.0001). Of 22 patients who switched from topical 5-ASA administration to budesonide foam, nine at week 2 (41%) and 11 (50%) at week 6 were improved with no symptoms, and there were no cases of worsened symptoms. No severe side effects associated with budesonide foam were observed. Conclusion Budesonide foam administration significantly improves both bowel frequency (night) and urgent defecation-related UC activity and is also effective for the patients who were refractory to topical 5-ASA administration.
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Affiliation(s)
- Ryosuke Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Toshiyuki Sakurai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Mariko Shimada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yuko Iwashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Naoki Shibuya
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yoshihiro Akita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Haruna Miyashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yuki Maruyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan.
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Sakurai T, Akita Y, Miyashita H, Miyazaki R, Maruyama Y, Saito T, Shimada M, Yamasaki T, Arhihiro S, Kato T, Matsuura T, Ikegami M, Okayasu I, Saruta M. Prostaglandin E-major urinary metabolite diagnoses mucosal healing in patients with ulcerative colitis in remission phase. J Gastroenterol Hepatol 2022; 37:847-854. [PMID: 35064604 PMCID: PMC9303914 DOI: 10.1111/jgh.15782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/27/2021] [Accepted: 01/12/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIM Ulcerative colitis (UC) is usually detected by clinical symptoms, such as bleeding and diarrhea; however, it is rather difficult to assess during asymptomatic clinical remission (CR). Hence, there is a need for a biomarker that can reliably detect UC during remission. We previously reported on the utility of the prostaglandin E-major urinary metabolite (PGE-MUM) as a biomarker reflecting UC activity. In this study, we evaluated the effectiveness of the PGE-MUM in the diagnosis of endoscopic, histological, and histo-endoscopic mucosal remission of UC, comparing with fecal tests. METHODS This prospective study was conducted at the Jikei University Hospital between August 2017 and January 2021. Patients with UC in CR scheduled to undergo colonoscopy were included. The association between the PGE-MUM with endoscopic remission (ER), histological remission (HR), and complete mucosal healing (CMH, defined as histo-endoscopic remission) was analyzed. We also compared the area under the curve (AUC) for the receiver operating characteristic curves between PGE-MUM, fecal calprotectin (FC), and fecal immunochemical test (FIT). RESULTS In total, 128 patients were analyzed. PGE-MUM differed significantly in ER versus non-ER (14.5 vs 16.7, P = 0.028), HR versus non-HR (14.2 vs 17.4, P = 0.004), and CMH versus non-CMH (14.3 vs 16.7, P = 0.021). There were no significant differences between the AUCs for PGE-MUM, FC, and FIT for ER, HR, or CMH. CONCLUSIONS The PGE-MUM can determine CMH in UC even during CR, regardless of the disease phenotype, indicating its clinical benefit for non-invasive monitoring.
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Affiliation(s)
- Toshiyuki Sakurai
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Yoshihiro Akita
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Haruna Miyashita
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Ryosuke Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Yuki Maruyama
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Tomoko Saito
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Mariko Shimada
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Takuji Yamasaki
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Seiji Arhihiro
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei Katsushika Medical CenterTokyoJapan
| | - Tomohiro Kato
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
| | - Tomokazu Matsuura
- Department of Laboratory MedicineThe Jikei University School of MedicineTokyoJapan
| | - Masahiro Ikegami
- Division of PathologyThe Jikei University School of MedicineTokyoJapan
| | - Isao Okayasu
- Department of PathologyKitasato University School of MedicineSagamiharaKanagawaJapan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal MedicineThe Jikei University School of MedicineTokyoJapan
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8
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Tomioka A, Narimatsu K, Chiya N, Nishimura H, Akita Y, Higashiyama M, Komoto S, Tomita K, Hokari R. Hepatic portal venous gas and bacteremia after colonic endoscopic submucosal dissection: A case report. DEN Open 2022; 2:e107. [PMID: 35873518 PMCID: PMC9302301 DOI: 10.1002/deo2.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 11/15/2022]
Abstract
Hepatic portal venous gas (HPVG) is considered to be a sign of poor prognosis in abdominal diseases and a potentially fatal condition. However, HPVG after colonic endoscopic submucosal dissection (ESD), is an even rarer complication that there is just one report of it at the moment. In this report, we present a case of HPVG and bacteremia that happened a day after colonic ESD in the descending colon. A 79‐year‐old female was referred to perform endoscopic treatment for a 40‐mm elevated tumor in the descending colon and surgery for clinical T1b cancer in the rectosigmoid colon. With a preoperative diagnosis of intramucosal carcinoma in adenoma, we performed ESD using carbon dioxide insufflation. The tumor was resected en bloc without any adverse events including perforation. On the following day, shivering and a fever of 38°C suddenly developed with no abdominal symptoms. Computed tomography revealed the presence of HPVG and gas in the middle colic vein without pneumoperitoneum. The patient was managed conservatively with fasting and intravenous antibiotic treatment. We confirmed the disappearance of the findings with computed tomography on the next day of the first computed tomography and with a colonoscope, we observed the base of ESD ulcer 5 days post‐ESD. HPVG might be treated conservatively, but it might cause more severe conditions such as air embolism, so this rare complication still needs to be thoroughly monitored.
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Affiliation(s)
- Akira Tomioka
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
| | - Kazuyuki Narimatsu
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
| | - Nanoka Chiya
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
| | - Hiroyuki Nishimura
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
| | - Yoshihiro Akita
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
| | - Masaaki Higashiyama
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
| | - Shunsuke Komoto
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
| | - Kengo Tomita
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
| | - Ryota Hokari
- Division of Gastroenterology National Defense Medical College Hospital Saitama Japan
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9
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Yoshidome Y, Mizoguchi A, Narimatsu K, Takahashi S, Hirata D, Ono S, Onoyama Y, Suzuki S, Horiuchi T, Chiya N, Ikeyama K, Tahara H, Tomioka A, Ito S, Tanemoto R, Nishii S, Inaba K, Sugihara N, Hanawa Y, Horiuchi K, Wada A, Akita Y, Higashiyama M, Komoto S, Tomita K, Yoshimatsu S, Matsukuma S, Hokari R. Immunoglobulin G4‐related disease accompanying a small intestinal ulcer: A case. DEN Open 2022; 2:e76. [PMID: 35310696 PMCID: PMC8828200 DOI: 10.1002/deo2.76] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/30/2021] [Accepted: 10/24/2021] [Indexed: 11/06/2022]
Abstract
Immunoglobulin (Ig)G4‐related disease (IgG4‐RD) is a systemic condition associated with fibroinflammatory lesions and is characterized by elevated serum IgG4 levels and IgG4‐positive cell infiltration into the affected tissues. It has been reported that IgG4‐RD affects a variety of organs but uncommonly affects the gastrointestinal tract. In particular, there are few cases of lesions in the small intestine, except for sclerosing mesenteritis, which were mostly diagnosed from surgical specimens. Herein, we describe the case of a 70‐year‐old man who initially presented with abdominal pain, headache, later cognitive decline, and gait disturbance caused by IgG4‐RD. Colonoscopy revealed irregular ulcers in the terminal ileum, and computed tomography of the head showed hypertrophic pachymeningitis. Numerous IgG4‐positive cells were detected in the ileal and dural biopsies. We diagnosed the patient with IgG4‐RD and started steroid pulse therapy. After initiation of treatment, the symptoms quickly improved. The patient was discharged from the hospital after starting oral prednisolone treatment (30 mg). The dosage was gradually reduced to 10 mg. A follow‐up colonoscopy revealed scarring of the ileal ulcers. This case may provide valuable information regarding the endoscopic findings of small intestinal lesions in IgG4‐RD.
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Affiliation(s)
- Yuta Yoshidome
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Akinori Mizoguchi
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Kazuyuki Narimatsu
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Shun Takahashi
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Dai Hirata
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Shinji Ono
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Yusuke Onoyama
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Seiya Suzuki
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Tomoaki Horiuchi
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Nanoka Chiya
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Keisuke Ikeyama
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Hiroyuki Tahara
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Akira Tomioka
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Suguru Ito
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Rina Tanemoto
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Shin Nishii
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Kenichi Inaba
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Nao Sugihara
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Yoshinori Hanawa
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Kazuki Horiuchi
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Akinori Wada
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Yoshihiro Akita
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Masaaki Higashiyama
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Shunsuke Komoto
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Kengo Tomita
- Department of Gastroenterology National Defense Medical College Saitama Japan
| | - Shinya Yoshimatsu
- Department of Pathology and Laboratory Medicine National Defense Medical College Hospital Saitama Japan
| | - Susumu Matsukuma
- Department of Pathology and Laboratory Medicine National Defense Medical College Hospital Saitama Japan
| | - Ryota Hokari
- Department of Gastroenterology National Defense Medical College Saitama Japan
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10
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Wada A, Higashiyama M, Hirata D, Ito S, Tanemoto R, Nishii S, Mizoguchi A, Inaba K, Sugihara N, Hanawa Y, Horiuchi K, Akita Y, Narimatsu K, Komoto S, Tomita K, Hokari R. Changes in Colonic Inflammation Related with Takayasu Arteritis during a 10-year Observation Period. Intern Med 2022; 61:475-480. [PMID: 34393161 PMCID: PMC8907787 DOI: 10.2169/internalmedicine.7287-21] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Takayasu arteritis (TA) sometimes presents with colitis, which may be diagnosed as inflammatory bowel disease unclassified (IBDU) because of atypical or mixed findings of ulcerative colitis (UC) and Crohn's disease. We herein report an 18-year-old girl presenting with colitis with an occasional high fever eventually diagnosed as TA with IBDU. Colonic inflammation was initially discontinuous and stronger in the proximal colon, atypical of UC. However, over 10-year observation, the distribution of colonic inflammation varied and became UC-like. Variations in TA-related colonic inflammations over time have been unclear. Our long-term observation might help clarify the details of TA-related colonic inflammation.
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Affiliation(s)
- Akinori Wada
- Department of Internal Medicine, National Defense Medical College, Japan
| | | | - Dai Hirata
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Suguru Ito
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Rina Tanemoto
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Shin Nishii
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Akinori Mizoguchi
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Kenichi Inaba
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Nao Sugihara
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Yoshinori Hanawa
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Kazuki Horiuchi
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Yoshihiro Akita
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Kazuyuki Narimatsu
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Shunsuke Komoto
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Kengo Tomita
- Department of Internal Medicine, National Defense Medical College, Japan
| | - Ryota Hokari
- Department of Internal Medicine, National Defense Medical College, Japan
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11
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Miyazaki R, Sakurai T, Iwashita Y, Shimada M, Shibuya N, Akita Y, Miyashita H, Maruyama Y, Sawada R, Toyonaga T, Takakura K, Saruta M. Characteristics and Endoscopic Classification of Ulcerative Lesions Affecting the Ileocecal Valve. Dig Dis 2022; 40:239-245. [PMID: 34000716 DOI: 10.1159/000516975] [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: 09/28/2020] [Accepted: 04/29/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVES The aim of this study was to propose an endoscopic classification system for ulcerative lesions on the ileocecal valve and investigate its relevance to the underlying etiology. METHODS Among the 60,325 patients who underwent colonoscopy at our hospital from January 2006 to December 2018, patients with ulcerative lesions on the ileocecal valve were included. The following data were obtained using the hospital's medical records: sex, age, clinical diagnosis, laboratory data, and endoscopic and histological findings. Patients who have ulcerative colitis and who were not evaluated by histological examination were excluded. Ulcerative lesions on the ileocecal valve were classified into 3 groups according to their endoscopic appearance: small shallow ulcerative lesions without edematous change (group A), lateral spreading shallow ulcerative lesions with edematous change (group B), and deep deformed ulcerative lesions (group C). The association between this endoscopic classification and its clinical diagnosis, clinical course, and the interobserver reliability were evaluated. RESULTS Of 72 patients who were eligible for analysis, 18 were assigned to group A, 9 to group B, and 45 to group C. Infectious enteritis was mainly assigned to group A (group A, 12; group B, none; and group C, 6; p < 0.0001), inflammatory bowel disease was mainly assigned to group C (group A, none; group B, 5; and group C, 35; p < 0.0001), and malignant tumor was assigned to group C only. Interobserver reliability was extremely high among the 3 examining doctors (kappa value 0.7-0.8). CONCLUSION Endoscopic classification was divided into 3 groups for ulcerative lesions on the ileocecal valve, and this system could be beneficial for presuming their clinical diagnoses.
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Affiliation(s)
- Ryosuke Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiyuki Sakurai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yuko Iwashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Mariko Shimada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Naoki Shibuya
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshihiro Akita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Haruna Miyashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yuki Maruyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ryoichi Sawada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takahiko Toyonaga
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuki Takakura
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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12
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Miyashita H, Yamasaki T, Akita Y, Ando Y, Maruyama Y, Nagata Y, Miyazaki R, Noguchi M, Sawada R, Sakurai T, Kato T, Sumiyama K, Suka M, Hamatani S, Saruta M. Small Neuroendocrine Tumors of the Whole Gastrointestinal Tract Performed Endoscopic or Surgical Resections Also Show Positive for Lymphovascular Invasion. Digestion 2021; 102:921-928. [PMID: 34265770 DOI: 10.1159/000517282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 05/13/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS In gastrointestinal neuroendocrine tumors (GI-NETs), tumor size and grading based on cellular proliferative ability indicate biological malignancy but not necessarily clinically efficient prognostic stratification. We analyzed tumor size- and grading-based prevalence of lymphovascular invasion in GI-NETs to establish whether these are true biological malignancy indicators. METHODS We included 155 cases (165 lesions), diagnosed histologically with GI-NETs, that had undergone endoscopic or surgical resection. Patient age, sex, method of treatment, tumor size, invasion depth, lymphovascular invasion positivity according to Ki-67 index-based neuroendocrine tumor grading, distant metastases, and outcome were evaluated. The primary endpoints were the prevalence of lymphovascular invasion according to tumor size and grading. RESULTS Overall, 24.8% were positive for lymphovascular invasion. There was a high rate of lymphovascular invasion positivity even among grade 1 cases (22.8%). The rate of lymphovascular invasion was 3.4% for grade 1 cases <5 mm, with a lymphovascular invasion rate of 8.7% for those 5-10 mm. Lymphovascular invasion ≤10% required a tumor size ≤8 mm, and lymphovascular invasion ≤5% required a tumor size ≤6 mm. A cutoff of 6 mm was identified, which yielded a sensitivity of 79% and a specificity of 63%. Even small GI-NETs grade 1 of the whole GI tract also showed positive for lymphovascular invasion. CONCLUSIONS GI-NETs ≤10 mm had a lymphovascular invasion prevalence exceeding 10%. The lymphovascular invasion impact in GI-NET development is incompletely understood, but careful follow-up, including consideration of additional surgical resection, is crucial in cases with lymphovascular invasion.
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Affiliation(s)
- Haruna Miyashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takuji Yamasaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshihiro Akita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshitaka Ando
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yuki Maruyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yusuke Nagata
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ryosuke Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masaaki Noguchi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ryoichi Sawada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiyuki Sakurai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Tomohiro Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuki Sumiyama
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan
| | - Machi Suka
- Department of Public Health and Environmental Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Shigeharu Hamatani
- Department of Pathology, The Jikei University School of Medicine, Tokyo, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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13
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Shibuya N, Higashiyama M, Akita Y, Shirakabe K, Ito S, Nishii S, Mizoguchi A, Inaba K, Tanemoto R, Sugihara N, Hanawa Y, Wada A, Horiuchi K, Yoshikawa K, Kurihara C, Okada Y, Watanabe C, Komoto S, Tomita K, Saruta M, Hokari R. Deoxycholic acid enhancement of lymphocyte migration through direct interaction with the intestinal vascular endothelium. J Gastroenterol Hepatol 2021; 36:2523-2530. [PMID: 33783040 DOI: 10.1111/jgh.15509] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 03/12/2020] [Revised: 02/04/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM The small intestine plays a central role in gut immunity, and enhanced lymphocyte migration is involved in the pathophysiology of various enteropathy. Bile acid (BA) is closely related to lipid metabolism and gut microbiota and essential for gut homeostasis. However, the effects of BA on gut immunity have not been studied in detail, especially on the small intestine and lymphocyte migration. Therefore, we aimed to investigate the effect of BA on small intestinal lymphocyte microcirculation. METHODS The effect of deoxycholic acid (DCA), taurocholic acid (tCA), or cholic acid (CA) on the indomethacin (IND)-induced small intestinal enteropathy in mice was investigated. Lymphocyte movements were evaluated after exposure to BA using intravital microscopy. The effects of BA on surface expression of adhesion molecules on the vascular endothelium and lymphocytes through BA receptors were examined in vitro. RESULTS IND-induced small intestinal enteropathy was histologically aggravated by DCA treatment alone. The expression of adhesion molecules ICAM-1 and VCAM-1 was significantly enhanced by DCA. Exposure to DCA increased lymphocyte adhesion in the microvessels of the ileum, which was partially blocked by anti-α4β1 integrin antibody in vivo. The expression of ICAM-1 and VCAM-1 was significantly enhanced by DCA in vitro, which was partially suppressed by the sphingosine-1-phosphate receptor 2 (S1PR2) antagonist. The S1PR2 antagonist significantly ameliorated IND-induced and DCA-exaggerated small intestinal injury. CONCLUSION DCA exacerbated IND-induced small intestinal enteropathy. DCA directly acts on the vascular endothelium and enhances the expression levels of adhesion molecules partially via S1PR2, leading to enhanced small intestinal lymphocyte migration.
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Affiliation(s)
- Naoki Shibuya
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | | | - Yoshihiro Akita
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Kazuhiko Shirakabe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Suguru Ito
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Shin Nishii
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Akinori Mizoguchi
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Kenichi Inaba
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Rina Tanemoto
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Nao Sugihara
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Yoshinori Hanawa
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Akinori Wada
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Kazuki Horiuchi
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Kenichi Yoshikawa
- Department of General Internal Medicine, Eiseikai Minamitama Hospital, Tokyo, Japan
| | - Chie Kurihara
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Yoshikiyo Okada
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Chikako Watanabe
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Shunsuke Komoto
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Kengo Tomita
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Ryota Hokari
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
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14
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Maruyama Y, Yamasaki T, Miyashita H, Akita Y, Nagata Y, Miyazaki R, Noguchi M, Sawada R, Hidaka A, Sakurai T, Kato T, Sumiyama K, Saruta M. Need to Inspect the Total Gastrointestinal Tract of Patients With Malignant Lymphomas. In Vivo 2021; 35:2785-2791. [PMID: 34410969 DOI: 10.21873/invivo.12564] [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: 06/14/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Malignant lymphoma (ML) cases with overlapping gastrointestinal (GI) lesions are often encountered. We aimed to elucidate the importance of examining the GI tract in patients with ML and assess the overlap rate. PATIENTS AND METHODS We analysed 190 patients diagnosed with GI MLs. We compared the overlap rates among the different histopathological types. RESULTS Twenty-five (13.2%) patients had overlapping GI lesions in more than two segments. The overlap rates were 100% in mantle cell lymphomas (MCL), 27.6% in follicular lymphomas (FL), and 16.3% in diffuse large B-cell lymphomas (DLBCL). MCL, FL, and DLBCL cases showed significantly higher overlap rates than mucosa-associated lymphoid tissue lymphoma cases (p<0.01). About 64.0% of cases of ML with overlapping lesions involved the small intestine. CONCLUSION In GI ML cases, it is ideal to examine the entire GI tract by esophagogastroduodenoscopy, colonoscopy, and capsule endoscopy and/or balloon-assisted endoscopy, especially in MCL, FL, and DLBCL.
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Affiliation(s)
- Yuki Maruyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takuji Yamasaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan;
| | - Haruna Miyashita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshihiro Akita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yusuke Nagata
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ryosuke Miyazaki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masaaki Noguchi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ryoichi Sawada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Akihisa Hidaka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiyuki Sakurai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Tomohiro Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuki Sumiyama
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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15
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Teratani T, Tomita K, Wada A, Sugihara N, Higashiyama M, Inaba K, Horiuchi K, Hanawa Y, Nishii S, Mizoguchi A, Tanemoto R, Ito S, Okada Y, Kurihara C, Akita Y, Narimatsu K, Watanabe C, Komoto S, Oike Y, Miura S, Hokari R, Kanai T. Angiopoietin-like protein 4 deficiency augments liver fibrosis in liver diseases such as nonalcoholic steatohepatitis in mice through enhanced free cholesterol accumulation in hepatic stellate cells. Hepatol Res 2021; 51:580-592. [PMID: 33247991 DOI: 10.1111/hepr.13603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 11/18/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022]
Abstract
AIM We recently reported that lipoprotein lipase (LPL)-mediated free cholesterol (FC) accumulation in hepatic stellate cells (HSCs) augmented liver fibrosis in non-alcoholic steatohepatitis (NASH). The aim of the present study was to explore the role of angiopoietin-like protein 4 (Angptl4), an LPL inhibitor, in the pathogenesis of liver fibrosis in NASH. METHODS Angptl4-deficient or wild-type mice were used to investigate the role of Angptl4 in the pathogenesis of NASH induced by feeding a methionine- and choline-deficient diet. We also examined the effect of Angptl4 on FC accumulation in HSCs, and the subsequent activation of HSCs, using Angptl4-deficient HSCs. RESULTS In the NASH model, Angptl4-deficient mice had significantly aggravated liver fibrosis and activated HSCs without enhancement of hepatocellular injury, liver inflammation, or liver angiogenesis. FC levels were significantly higher in HSCs from Angptl4-deficient mice than in those from wild-type mice. Treatment with Angptl4 reversed low-density lipoprotein-induced FC accumulation in HSCs through the inhibition of LPL. The Angptl4 deficiency-induced FC accumulation in HSCs suppressed HSC expression of the transforming growth factor-β (TGF-ß) pseudoreceptor, bone morphogenetic protein, and activin membrane-bound inhibitor, and sensitized HSCs to TGF-β-induced activation in vivo and in vitro. CONCLUSIONS Angptl4 plays an important role in the pathogenesis of FC accumulation in HSCs. In addition, regulation of FC levels in HSCs by Angptl4 plays a critical role in the pathogenesis of liver fibrosis in NASH. Thus, Angptl4 could represent a novel therapeutic option for NASH.
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Affiliation(s)
- Toshiaki Teratani
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Kengo Tomita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Akinori Wada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Nao Sugihara
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Masaaki Higashiyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Kenichi Inaba
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Kazuki Horiuchi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Yoshinori Hanawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Shin Nishii
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Akinori Mizoguchi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Rina Tanemoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Suguru Ito
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Yoshikiyo Okada
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Chie Kurihara
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Yoshihiro Akita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Kazuyuki Narimatsu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Chikako Watanabe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Shunsuke Komoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Yuichi Oike
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, Chuo-ku, Kumamoto, Japan
| | - Soichiro Miura
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan.,International University of Health and Welfare Graduate School, Minato-ku, Tokyo, Japan
| | - Ryota Hokari
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
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Furuike Y, Akita Y, Miyahara I, Kamiya N. Protonation states of key residues observed during in situADPRase reaction. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311080068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Nakano A, Watanabe D, Akita Y, Kawamura T, Tamada Y, Matsumoto Y. Treatment efficiency of combining photodynamic therapy and ionizing radiation for Bowen’s disease. J Eur Acad Dermatol Venereol 2011; 25:475-8. [DOI: 10.1111/j.1468-3083.2010.03757.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Koga Y, Yatsuga S, Akita Y, Nishioka J, Katayama K, Povalko N, Matsuishi T. Natural course of melas in Japanese cohort study. J Neurol Sci 2009. [DOI: 10.1016/j.jns.2009.02.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Nakano A, Tamada Y, Watanabe D, Ishida N, Yamashita N, Kuhara T, Yanagishita T, Kawamura C, Akita Y, Matsumoto Y. A pilot study to assess the efficacy of photodynamic therapy for Japanese patients with actinic keratosis in relation to lesion size and histological severity. Photodermatology, Photoimmunology & Photomedicine 2009; 25:37-40. [DOI: 10.1111/j.1600-0781.2009.00401.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Ishida N, Watanabe D, Akita Y, Nakano A, Yamashita N, Kuhara T, Yanagishita T, Takeo T, Tamada Y, Matsumoto Y. Etretinate enhances the susceptibility of human skin squamous cell carcinoma cells to 5-aminolaevulic acid-based photodynamic therapy. Clin Exp Dermatol 2008; 34:385-9. [PMID: 19077103 DOI: 10.1111/j.1365-2230.2008.03003.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) with 5-aminolaevulinic acid (5-ALA) is a noninvasive and effective treatment for superficial skin cancers. Etretinate, a derivate of vitamin A, with the chemical formula ethyl(2E,4E,6E,8E)-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-2,4,6,8-nona-tetraenoate, has been reported to have antitumour effects and to regulate the proliferation and differentiation of skin cancers. OBJECTIVE In order to develop more efficient PDT, we investigated whether etretinate enhanced the cytotoxic action of ALA-based PDT against human squamous cell carcinoma cell line, HSC-5. METHOD The in vitro cytotoxicity was measured using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Apoptotic cells were detected by double-staining with fluorescent annexin V and propidium iodide. Intracellular protoporphyrin IX (PpIX) converted from exogenous ALA was measured by a fluorescence meter. RESULTS HSC-5 cells pretreated with a nontoxic concentration of etretinate became more susceptible to the cytotoxic action of ALA-based PDT. Etretinate-pretreated cells underwent apoptosis in response to ALA-based PDT. Etretinate pretreatment resulted in enhanced accumulation of ALA-dependent intracellular PpIX. CONCLUSIONS The results suggest that etretinate enhances the susceptibility of HSC-5 cells to ALA-based PDT via the intracellular increase of ALA-dependent PpIX. Etretinate might be useful for improvement of ALA-based PDT.
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Affiliation(s)
- N Ishida
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aich, Japan.
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Haruki R, Sakata O, Yamada T, Kanaizuka K, Makiura R, Akita Y, Yoshimoto M, Kitagawa H. Structural study of an iron oxalate and a copper rubeanate layer on an ultra-smooth sapphire c-face. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308087205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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22
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Haruki R, Sakata O, Yamada T, Kanaizuka K, Makiura R, Akita Y, Yoshimoto M, Kitagawa H. Structural Evaluation of an Iron Oxalate Complex Layer Grown on an Ultra-smooth Sapphire (0001) Surface by a Wet Method. ACTA ACUST UNITED AC 2008. [DOI: 10.14723/tmrsj.33.629] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Yamaguchi T, Koikawa Y, Konomoto T, Akita Y. POS-02.106: Yoke technique for severe proximal hypospadias. Urology 2007. [DOI: 10.1016/j.urology.2007.06.1042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Koikawa Y, Yamaguchi T, Konomoto T, Akita Y. UP-01.32. Urology 2006. [DOI: 10.1016/j.urology.2006.08.671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Akiyama H, Akita Y, Kudo K, Ichimura K. Photochromic Behavior of Thin Films of Polymehacrylate Substituted with Laterally Attached Azobenzenes Displaying Liquid Crystal Alignment Photocontrol. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259608040315] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- H. Akiyama
- a Research Laboratory of Resources Utilization , Tokyo Institute of Technology , Yokohama , Japan
| | - Y. Akita
- a Research Laboratory of Resources Utilization , Tokyo Institute of Technology , Yokohama , Japan
| | - K. Kudo
- a Research Laboratory of Resources Utilization , Tokyo Institute of Technology , Yokohama , Japan
| | - K. Ichimura
- a Research Laboratory of Resources Utilization , Tokyo Institute of Technology , Yokohama , Japan
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Abstract
The authors evaluated endothelial function in patients with MELAS (mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke) by flow-mediated vasodilation (FMD) and found a significant decrease vs controls. Two years of supplementation with oral l-arginine, a nitric oxide precursor, significantly improved endothelial function to control levels and was harmonized with the normalized plasma levels of l-arginine in patients. l-Arginine therapy improved endothelial dysfunction and showed promise in treating strokelike episodes in MELAS.
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Affiliation(s)
- Y Koga
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Fukuoka, Japan.
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Saeki H, Tamada Y, Watanabe D, Akita Y, Matsumoto Y, Imai C, Kadono T, Maekawa T, Hattori N, Watanabe A, Torii H, Tamaki K. Analysis of gene mutations in four cases of dermatofibrosarcoma protuberans. Clin Exp Dermatol 2006; 31:441-4. [PMID: 16681596 DOI: 10.1111/j.1365-2230.2006.02097.x] [Citation(s) in RCA: 8] [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: 11/30/2022]
Abstract
Fusion of the collagen type I alpha 1 (COL1A1) gene with the platelet-derived growth factor B-chain (PDGFB) gene has been described in dermatofibrosarcoma protuberans (DFSP). Various exons of the COL1A1 gene have been shown to be involved in the fusion with exon 2 of the PDGFB gene. We examined the breakpoints of the COL1A1 gene using the tumour specimens from four patients with DFSP. The COL1A1-PDGFB fusion transcripts were detected from the cultured tumour cells by reverse transcriptase polymerase chain reaction. Sequence analysis revealed that the ends of exons 23, 25, 26 and 36 in the COL1A1 gene were fused with the start of exon 2 in the PDGFB. This study identified three novel COL1A1 breakpoints: exons 23, 26 and 36 of the COL1A1 gene. In one case, the tumour was composed of two areas that differed in cytological atypia, cellularity and mitotic activity, indicating the dedifferentiation of the tumour. In tumour cells from two different areas the same aberrant fusion transcripts were identified. These results suggest that the dedifferentiation of tumour cells has nothing to do with the specific breakpoints of the COL1A1 gene, but depends on other unknown factors.
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Affiliation(s)
- H Saeki
- Aichi Medical University, Aichi, Japan.
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Abstract
Based on the hypothesis that mitochondrial myopathy, encephalopathy, lactic acidosis, and strokelike episodes (MELAS) are caused by impaired vasodilation in an intracerebral artery, the authors evaluated the effects of administering l-arginine, a nitric oxide precursor. Patients were administered L-arginine intravenously at the acute phase or orally at the interictal phase. L-arginine infusions significantly improved all strokelike symptoms, suggesting that oral administration within 30 minutes of a stroke significantly decreased frequency and severity of strokelike episodes.
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Affiliation(s)
- Y Koga
- Department of Pediatrics and Child Health, Kurume University School of Medicine, 67 Asahi-Machi, Kurume City, Fukuoka 830-0011, Japan.
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Akita Y, Kozaki K, Nakagawa A, Saito T, Ito S, Tamada Y, Fujiwara S, Nishikawa N, Uchida K, Yoshikawa K, Noguchi T, Miyaishi O, Shimozato K, Saga S, Matsumoto Y. Cyclooxygenase-2 is a possible target of treatment approach in conjunction with photodynamic therapy for various disorders in skin and oral cavity. Br J Dermatol 2004; 151:472-80. [PMID: 15327557 DOI: 10.1111/j.1365-2133.2004.06053.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [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: 01/13/2023]
Abstract
BACKGROUND Anti-cancer effects of cyclooxygenase (COX)-2 inhibitors have been reported, but not fully investigated in skin and oral diseases. 5-aminolaevulinic acid (ALA)-based photodynamic therapy (PDT) for treating those patients with skin and oral lesions is a highly sophisticated procedure, but the incidence of disease recurrence after treatment is rather significant. OBJECTIVE To confirm that COX-2 could be a molecular target in adjunctive therapy to ALA-based PDT, we investigated (i) COX-2 expression in various skin and oral diseases, and (ii) the inhibitory effects on cellular growth of COX-2 selective inhibitor (nimesulide), ALA-based PDT and their combination on human oral squamous cell carcinoma (SCC) cell lines. METHODS A total of 129 biopsy samples from the skin and oral mucosal lesions were tested immunohistochemically for COX-2 expression. Then the in vitro effects of nimesulide, ALA-based PDT, and their combination were determined on two SCC cell lines, HSC-2 and HSC-4. Three different methods (MTT assay, double-staining for annexin V and propidium iodide, caspase-3/CPP32 fluorometric protease assay) were applied for evaluation of their inhibitory effects on these two cell lines. RESULTS Among the skin diseases, a considerable number of COX-2 high expressers were found in actinic keratosis (15 of 25, 60%), Bowen's disease (13 of 17, 76%) and extramammary Paget's disease (15 of 15, 100%). In contrast, only one of 33 (3%) basal cell carcinoma tumours was a COX-2 high expresser. Among the oral mucosal biopsies, the proportion of COX-2 high expressers increased gradually from hyperplasia (one of six, 17%) through mild dysplasia (five of eight, 63%) and moderate dysplasia (20 of 23, 87%) to severe dysplasia (two of two, 100%). Nimesulide had an inhibitory effect in vitro on HSC-2 (proven to be a COX-2 high expresser), but not on HSC-4 (a COX-2 non-expresser). While ALA-based PDT showed an inhibitory effect on both HSC-2 and HSC-4, most importantly the combination of nimesulide and ALA-based PDT demonstrated a significant synergistic effect on the cellular growth inhibition of only HSC-2, but not of HSC-4. CONCLUSIONS Our study strongly suggests that COX-2 can be one of the molecular targets in treating various skin and oral diseases. The results from our in vitro experiments also prompt us to develop a new protocol with a combination of COX-2 selective inhibitor and ALA-based PDT for more effective treatment of those diseases.
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Affiliation(s)
- Y Akita
- Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Aichi 480-1195, Japan
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Nakaseko H, Kobayashi M, Akita Y, Tamada Y, Matsumoto Y. Histological changes and involvement of apoptosis after photodynamic therapy for actinic keratoses. Br J Dermatol 2003; 148:122-7. [PMID: 12534605 DOI: 10.1046/j.1365-2133.2003.04898.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [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: 02/05/2023]
Abstract
BACKGROUND Photodynamic therapy (PDT), which employs a combination of a tumour-localizing photosensitizer and visible light, has been used to treat superficial malignancies in the epidermis. OBJECTIVES To examine histological changes and the role of apoptosis in lesions of actinic keratosis (AK) after PDT using 5-aminolaevulinic acid (ALA) and excimer dye laser. METHODS After topical ALA-PDT, biopsy specimens were collected from 18 skin lesions in 15 patients with AK. Paraffin-embedded sections of the skin specimens were stained with haematoxylin and eosin. The detection of apoptosis was performed using a terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick end labelling (TUNEL) method, antiactivated caspase-3 antibody and anti-Fas antibody. RESULTS One hour after PDT, cells with eosinophilic cytoplasm and markedly stained nuclei were found, and vacuolation of some tumour cells was noted in the lower layer of the epidermis. An infiltrate of lymphocytes and neutrophils was observed in the upper layer of the dermis. One day after PDT, all layers of the epidermis exhibited slightly degenerative necrosis, with shadow cell formation and chromatin condensation around the nuclear membrane in the lower layer of the epidermis. Necrosis in all layers of the epidermis and lymphocyte infiltration in the dermis were found 3 days after PDT. Tumour cells had disappeared and regenerative thickening of the epidermis was observed 7 days after PDT. TUNEL staining revealed apoptosis-positive cells in the epidermis in 8 of 11 specimens obtained 1 day after PDT. Activated caspase-3 expression was noted in the lower layer of the epidermis in four of these eight TUNEL-positive specimens. CONCLUSIONS Results suggested that apoptosis is involved in tumour cell death after PDT in patients with AK, and that it occurs within 1 day after PDT.
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Affiliation(s)
- H Nakaseko
- Department of Dermatology, Aichi Medical University, Nagakute, Japan.
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31
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Niimi T, Sato S, Sugiura Y, Yoshinouchi T, Akita K, Maeda H, Achiwa H, Ninomiya S, Akita Y, Suzuki M, Nishio M, Yoshikawa K, Morishita M, Shimizu S, Ueda R. Transforming growth factor-beta gene polymorphism in sarcoidosis and tuberculosis patients. Int J Tuberc Lung Dis 2002; 6:510-5. [PMID: 12068984 DOI: 10.5588/09640569513020] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [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: 11/10/2022] Open
Abstract
SETTING Transforming growth factor-beta (TGF-beta) plays an important role in many diseases, influencing as it does such processes as immune responses, fibrosing processes, and angiogenesis. Recently, polymorphisms have been described for TGF-beta that are associated with the risk of several diseases. In this study, we investigated whether TGF-beta 1 polymorphism has an effect on sarcoidosis and tuberculosis. OBJECTIVE TGF-beta 1 Codon 10 T869C polymorphism was investigated in 110 healthy control subjects, 104 sarcoidosis patients, and 101 tuberculosis patients. DESIGN The TGF-beta genotype was determined using polymerase chain reaction restriction fragment length polymorphism. RESULTS We found no significant differences in TGF-beta genotypes between sarcoidosis patients and healthy controls or tuberculosis patients and controls. The long axis of the tuberculin skin test was larger in the CC type compared with the CT type. However, there was no association between the TGF-beta genotype and the roentgenographic stage, the disappearance of shadows, or organ involvement in sarcoidosis, nor any association between genotype, the extent or type of roentgenographic shadow, or detected volume of tubercle bacilli in tuberculosis. CONCLUSION From the results, we believe that TGF-beta polymorphisms on the whole do not have a strong influence on disease onset or clinical progression in sarcoidosis and tuberculosis, although this polymorphism might have an effect on the immune response in a tuberculosis host.
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Affiliation(s)
- T Niimi
- Second Department of Internal Medicine, Nagoya City University, Medical School, Japan.
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Koga Y, Ishibashi M, Ueki I, Yatsuga S, Fukiyama R, Akita Y, Matsuishi T. Effects of L-arginine on the acute phase of strokes in three patients with MELAS. Neurology 2002; 58:827-8. [PMID: 11889254 DOI: 10.1212/wnl.58.5.827] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Y Koga
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Asahi-machi, Kurume, Fukuoka, Japan.
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Kobayashi H, Kawamoto S, Saga T, Sato N, Hiraga A, Ishimori T, Akita Y, Mamede MH, Konishi J, Togashi K, Brechbiel MW. Novel liver macromolecular MR contrast agent with a polypropylenimine diaminobutyl dendrimer core: comparison to the vascular MR contrast agent with the polyamidoamine dendrimer core. Magn Reson Med 2001; 46:795-802. [PMID: 11590657 DOI: 10.1002/mrm.1259] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [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: 01/31/2023]
Abstract
As MRI contrast agents, more hydrophobic molecules reportedly accumulate in the liver and thus are potentially useful as liver MRI contrast agents. In this study, a generation-4 polypropylenimine diaminobutane dendrimer (DAB-Am64), which is expected to be more hydrophobic than the generation-4 polyamidoamine dendrimer (PAMAM-G4D), was used to synthesize a conjugate with 2-(p-isothiocyanatobenzyl)-6-methyl-diethylenetriaminepentaacetic acid (1B4M) [DAB-Am64-(1B4M-Gd)(64)] for complexing Gd(III) ions. This DAB conjugate quickly accumulated in the liver and its characteristics were studied and compared with those of a PAMAM conjugate [PAMAM-G4D-(1B4M-Gd)(64)], which is known to be a useful vascular MRI contrast agent, in regard to its availability as a liver MRI contrast agent. DAB-Am64-(1B4M-Gd)(64) accumulated significantly more in the liver and less in blood than PAMAM-G4D-(1B4M-Gd)(64) (P < 0.001). Contrast-enhanced MRI with DAB-Am64-(1B4M-Gd)(64) was able to homogeneously enhance liver parenchyma and visualize both portal and hepatic veins of 0.5 mm diameter in mice. In conclusion, DAB-Am64-(1B4M-Gd)(64) is a good candidate for a liver MRI contrast agent.
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Affiliation(s)
- H Kobayashi
- Hitachi Medical Co. Chaired Department of Diagnostic and Interventional Imagiology, Kyoto University, Graduate School of Medicine, Sakyo, Kyoto, Japan.
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Akita Y, Suzuki M, Ogasawara T, Inukai A, Shinjo K, Miyazaki M, Yamada K, Mukoyama N. [A patient with lymphoma of mucosa-associated lymphoid tissue (MALT) and adenocarcinoma in the same tumor of the lung]. Nihon Kokyuki Gakkai Zasshi 2001; 39:368-71. [PMID: 11510102] [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: 02/21/2023]
Abstract
A 60-year-old woman with no symptoms was found to have a mass shadow in the left lower lobe of the lung on chest radiography. Open lung biopsy and left lower lobectomy were performed. Histopathological study of the specimen revealed two distinct neoplasms. One tumor was a low grade B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) of the lung, while the other was an adenocarcinoma. The two neoplasms were admixed to form a composite tumor.
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Affiliation(s)
- Y Akita
- Department of Respiratory Medicine, Nagoya Daini Red Cross Hospital, Nagoya 466-8650, Japan
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Yamada K, Ogasawara T, Akita Y, Miyazaki M, Inukai A, Shinjo K, Suzuki M. [Bronchiolitis obliterans organizing pneumonia after adjuvant thoracic radiotherapy for breast cancer: a case report]. Nihon Kokyuki Gakkai Zasshi 2001; 39:122-5. [PMID: 11321823] [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: 02/19/2023]
Abstract
We report a case of recurrent cough and migratory pulmonary infiltrates in a 55-year-old woman after adjuvant thoracic radiotherapy for breast cancer. The pulmonary infiltrates were initially limited to the area adjacent to the irradiated breast, but later migrated to the opposite lung. The diagnosis of bronchiolitis obliterans organizing pneumonia (BOOP) was made using a transbronchial biopsy, which disclosed intraluminal fibrosis in the distal airspace, together with a radiographic appearance typical of BOOP. This case was assumed to be in a series of reported cases of BOOP primed by radiotherapy.
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Affiliation(s)
- K Yamada
- Department of Internal Medicine, Ensyu General Hospital, 144-6 Tokiwacho, Hamamatsu, Shizuoka 430-0917, Japan
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Abstract
Angiodysplasia of the gastrointestinal tract is thought to be one of the most common causes of lower gastrointestinal bleeding in the elderly, and, in the majority of cases, lesions are located in the cecum or ascending colon. The authors report an extremely rare case of appendicular angiodysplasia. A 76-yr-old woman was hospitalized with massive recurrent red anal bleeding. Selective superior mesenteric arteriography revealed an extravasation of contrast material from the appendicular artery, and this finding proved to be bleeding from an angiodysplasia of the appendix. An appendectomy was performed, and anal bleeding did not recur postoperatively. A review of the literature revealed this to be an extremely rare case of angiodysplasia.
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Affiliation(s)
- T Kyokane
- Department of Surgery, Yachiyo Hospital, Aichi, Japan
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Hattori C, Nishimura T, Shibata N, Akita Y, Kawakatsu K, Hayakawa M, Nishimura Y, Hattori H, Suzuki K, Yagisawa M. [Comparison of combined operation and nasal CPAP treatments for sleep disorders]. Nihon Jibiinkoka Gakkai Kaiho 2000; 103:1284-91. [PMID: 11197815 DOI: 10.3950/jibiinkoka.103.1284] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
UNLABELLED Uvulopalatopharyngoplasty (UPPP) and nasal CPAP are used for the treatment of obstructive sleep apnea syndrome (OSAS) in different institutions. Although OSAS results from an abnormality in the soft-palate, almost no reports have been made on the selection of UPPP or nasal CPAP procedures according to the type of abnormality. The most probable reason for this is that a comparison of treatment methods in individuals cases is difficult. We performed CPAP titration before and after operations, and compared the treatment methods, and evaluated the medical therapy. METHOD A sleep polygraph was performed on the first night, and cases diagnosed as OSAS received CPAP titration on the second night. The blocked region was identified by endoscopic examination. The results of the operation were evaluated after 1-2 months, and apnea hypopnea index (AHI) improvements of less than 50% received a second CPAP titration. RESULTS The operation results were poor for cases where endoscopic examination showed full-circumference palatal type, and good for soft palate and tonsillar type abnormalities. When endoscopic examinations were performed in conjunction with nasal CPAP, the treatment was observed to act on the soft palate and expand the air way in all cases. Nasal CPAP was effective in cases with full-circumference palatal abnormalities because in these cases, the pressure was caused by inflamma. Combined medical treatments were effective in cases where CPAP alone was ineffective because the pressure was too high.
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Affiliation(s)
- C Hattori
- Second Department of Otolaryngology, Fujita Health University, Nagoya
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38
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Abstract
AIMS To clarify the phenotype-genotype relation associated with the A3243G mitochondrial DNA mutation. METHODS Five unrelated probands harbouring the A3243G mutation but presenting different clinical phenotype were analysed. Probands include Leigh syndrome (LS(3243)), mitochondrial myopathy, encephalopathy, lactic acidosis and stroke like episodes (MELAS(3243)), progressive external ophthalmoplegia (PEO(3243)), and mitochondrial diabetes mellitus (MDM(3243)). Extensive clinical, histological, biochemical, and molecular genetic studies were performed on five families. RESULTS All patients showed ragged red fibres (RRF), and focal cytochrome c oxidase (COX) deficiency except for the patient with MDM(3243). The mutation load was highest in the proband with LS(3243) (>90%), who also presented the highest proportion of RRF (68%) and COX negative fibres (10%), and severe complex I plus IV deficiency. These proportions were lower in the probands with PEO(3243) and with MDM(3243). CONCLUSION The most severe clinical phenotype, LS(3243), was associated with the highest proportion of the A3243G mutation as well as the most prominent histological and biochemical abnormalities.
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Affiliation(s)
- Y Koga
- Department of Pediatrics and Child Health, Kurume University School of Medicine, 67 Asahi Machi, Kurume City, Fukuoka 830-0011, Japan.
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39
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Abstract
We describe an 8-day-old baby girl presenting a fatal infantile form of hypertrophic obstructive cardiomyopathy, associated with an A8296G mutation in the mitochondrial tRNA(Lys) gene. She was born from a healthy unrelated couple, and was the first infant of dizygotic twins. Soon after birth, she was noted to have tachypnea and generalized hypotonia. She had high levels of lactate and pyruvate, and was diagnosed as having hypertrophic cardiomyopathy using echocardiography. She died by cardiac failure. Mitochondrial DNA analysis was performed by sequencing after PCR-subcloning methods, and the percentage of mutation was measured using PCR-RFLP methods. In various tissues obtained at autopsy, analysis showed a heteroplasmic population of A8296G mutation in the mitochondrial tRNA(Lys) gene in all the tissues examined. Maternal inheritance was demonstrated in the family members. Our data demonstrated that an A8296G mutation in the mitochondrial tRNA(Lys) gene showed clinical heterogeneity from a milder form previously reported as mitochondrial diabetes mellitus, to a more severe form as hypertrophic obstructive cardiomyopathy, according to the spatial distribution of this mutation. Hum Mutat 15:382, 2000.
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Affiliation(s)
- Y Akita
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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40
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Koga Y, Koga A, Iwanaga R, Akita Y, Tubone J, Matsuishi T, Takane N, Sato Y, Kato H. Single-fiber analysis of mitochondrial A3243G mutation in four different phenotypes. Acta Neuropathol 2000; 99:186-90. [PMID: 10672326 DOI: 10.1007/pl00007423] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [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: 11/30/2022]
Abstract
Five unrelated patients harboring the A3243G mutation in the mitochondrial DNA (mtDNA) but presenting with different clinical phenotype were studied for their percentage of mutation at the single muscle fiber levels. One patient had a clinically and pathologically defined Leigh syndrome (LS), two showed mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes (MELAS), another showed progressive external ophthalmoplegia (PEO), and the other showed mitochondrial diabetes mellitus (MDM). The mutation load was greater in the muscle from the patient with LS (92%), who showed more than 80% even in the non-ragged red fibers (RRF) and also presented the highest proportion of RRF. The patients with MELAS had lower mutation levels as well as a lower proportion of RRF, and these two parameters were even lower in the PEO and MDM patients. These results were consistent with the concept that differences in the mutation load and in the somatic distribution of the mutation among different cells and tissues are responsible for the differences in phenotypical expression of the disease.
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Affiliation(s)
- Y Koga
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Fukuoka, Japan.
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41
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Akita Y, Kawasaki H, Ohno S, Suzuki K, Kawashima S. Involvement of protein kinase C epsilon in thyrotropin-releasing hormone-stimulated phosphorylation of the myristoylated alanine-rich C kinase substrate in rat pituitary clonal cells. Electrophoresis 2000; 21:452-9. [PMID: 10675027 DOI: 10.1002/(sici)1522-2683(20000101)21:2<452::aid-elps452>3.0.co;2-l] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/11/2022]
Abstract
We have shown previously that novel protein kinase Cepsilon (nPKCepsilon) plays a key role in the basal and thyrotropin-releasing hormone (TRH)-stimulated prolactin (PRL) secretion in rat pituitary GH4C1 cells (Akita et al., J. Biol. Chem. 1994, 269, 4653-4660). Here we examined the region downstream of nPKCepsilon activation in order to understand the molecular mechanism by which nPKCepsilon mediates TRH-induced signal transduction. Exposure of GH4C1 cells to TRH causes a stimulation of the phosphorylation of a p80 (Mr approximately 80 000, pI approximately 4.3) and two p19 (p19a and b; Mr approximately 19 000, pI approximately 5.6 and 5.5, respectively). Phorbol ester, a potent activator of protein kinase C (PKC), also enhances these phosphorylations, whereas bisindolylmaleimide I, a specific inhibitor of PKC, clearly inhibits the phosphorylation of p80. p80 and p19 were identified as myristoylated alanine-rich C kinase substrate (MARCKS) and stathmin, respectively, as assessed by their two-dimensional gel electrophoretic profiles and their stabilities to heat and acid treatment. In nPKCepsilon-overexpressing stable clones, the phosphorylated level of MARCKS but not stathmin was high in the resting state, and enhanced and sustained upon TRH stimulation, correlating with the increased activation of nPKCepsilon. TRH stimulates the release of MARCKS from the membrane/cytoskeletal fraction to the cytosol fraction. These results, taken together with previous data concerning PRL secretion, suggest that MARCKS, a regulatory component of the cytoskeletal architecture, is the major substrate of nPKCepsilon in vivo, and that its phosphorylation may regulate TRH-stimulated PRL secretion.
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Affiliation(s)
- Y Akita
- Department of Molecular Cell Physiology, The Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
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42
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Yoshikawa N, Yamamura F, Akita Y, Sato T, Mitamura K. Gastrointestinal lesions in an adult patient with Henoch-Schönlein purpura. Hepatogastroenterology 1999; 46:2823-4. [PMID: 10576353] [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: 02/14/2023]
Abstract
A 28 year-old man was admitted because drug toxication, due to a high dose of antipsychotic drugs, presented purpuric rash on both legs, lower abdominal pain, arthralgia, and fresh-bloody stool. Colonoscopy observed numerous small ring-like petechiae in the rectum and in the sigmoid colon. Upper gastrointestinal endoscopy found a few petechiae in the antrum of the stomach and in the duodenal second portion. He was treated with coagulation factor X III after admission. After 38 days, there was no abnormal mucosa in the colorectum, the duodenal second portion, or the antrum of the stomach. The disappearance of gastrointestinal lesions correlated with the course of the illness. Gastrointestinal tracts should be thoroughly observed in patients with Henoch-Schönlein purpura.
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Affiliation(s)
- N Yoshikawa
- Second Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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43
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Bruno C, Kirby DM, Koga Y, Garavaglia B, Duran G, Santorelli FM, Shield LK, Xia W, Shanske S, Goldstein JD, Iwanaga R, Akita Y, Carrara F, Davis A, Zeviani M, Thorburn DR, DiMauro S. The mitochondrial DNA C3303T mutation can cause cardiomyopathy and/or skeletal myopathy. J Pediatr 1999; 135:197-202. [PMID: 10431114 DOI: 10.1016/s0022-3476(99)70022-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Several mutations in mitochondrial DNA have been associated with infantile cardiomyopathy, including a C3303T mutation in the mitochondrial transfer RNA(Leu(UUR)) gene. Although this mutation satisfied generally accepted criteria for pathogenicity, its causative role remained to be confirmed in more families. Our objective was to establish the frequency of the C3303T mutation and to define its clinical presentation. STUDY DESIGN Families with cardiomyopathy and maternal inheritance were studied by polymerase chain reaction/restriction fragment length polymorphism analysis looking for the C3303T mutation. RESULTS We found the C3303T mutation in 8 patients from 4 unrelated families. In one, the clinical presentation was infantile cardiomyopathy; in the second family, proximal limb and neck weakness dominated the clinical picture for the first 10 years of life, when cardiac dysfunction became apparent; in the third family, 2 individuals presented with isolated skeletal myopathy and 2 others with skeletal myopathy and cardiomyopathy; in the fourth family, one patient had fatal infantile cardiomyopathy and the other had a combination of skeletal myopathy and cardiomyopathy. CONCLUSIONS Our findings confirm the pathogenicity of the C3303T mutation and suggest that this mutation may not be rare. The C3303T mutation should be considered in the differential diagnosis of skeletal myopathies and cardiomyopathy, especially when onset is in infancy.
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Affiliation(s)
- C Bruno
- The H. Houston Merritt Clinical Research Center for Muscular Dystrophy and Related Diseases, Department of Neurology, Columbia Presbyterian Medical Center, New York, New York, USA
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44
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Yamamura F, Yoshikawa N, Akita Y, Mitamura K, Miyasaka N. Relationship between Helicobacter pylori infection and histologic features of gastritis in biopsy specimens in gastroduodenal diseases, including evaluation of diagnosis by polymerase chain reaction assay. J Gastroenterol 1999; 34:461-6. [PMID: 10452678 DOI: 10.1007/s005350050297] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [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: 02/04/2023]
Abstract
We investigated the relationship between Helicobacter pylori infection and the histologic features of gastritis in gastroduodenal disease, and evaluated the diagnostic usefulness of the polymerase chain reaction (PCR) assay for the detection of H. pylori before and after eradication therapy. Endoscopic biopsy specimens from 81 patients with gastroduodenal disease were examined for the presence of H. pylori by culture and histologic examination. Histologic features of gastritis were classified according to the updated Sydney System, and results of the PCR assay were compared with those of histologic examination, using histologic scores. The density of H. pylori was significantly correlated with polymorphonuclear neutrophil activity and chronic inflammation. These findings suggest that the grades of infiltration of polymorphonuclear neutrophil cells and chronic inflammatory cells correspond to the density of H. pylori infection assessed by the updated Sydney System. Patients with positive results on PCR assay and negative results on histologic examination may have a low density of H. pylori because of severe atrophy in the gastric mucosa. Differences in results for the PCR assay and histologic examination were found in 2 of 12 patients in the detection of H. pylori after eradication therapy. According to the results of the PCR assay and histologic features before and after eradication, the gastric tissue-based PCR assay for H. pylori after eradication may be too sensitive to judge successful eradication of H. pylori.
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Affiliation(s)
- F Yamamura
- Second Department of Internal Medicine, Showa University, School of Medicine, Tokyo, Japan
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45
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Akita Y, Nishio M, Maeno K, Yamada Y, Mase Y, Yoshikawa K, Niimi T, Sato S, Yamamoto M. [Nontuberculous mycobacterial disease in a general hospital]. Kekkaku 1999; 74:107-13. [PMID: 10191603] [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: 04/13/2023]
Abstract
Annual incidence of nontuberculous mycobacterial (NTM) disease has been gradually increasing in the last 10 years in Japan. It is likely to encounter this disease not only in hospitals specialized in mycobacterial diseases but also in general hospitals. NTM were isolated from 97 cases between January 1990 and June 1996 at our hospital. Out of them, 41 patients were diagnosed as NTM disease. Mycobacterium avium complex (MAC) was the most frequent pathogens (68.3%) and M. kansasii (22%) was the next. Other pathogens were M. chelonae (4.9%), M. fortuitum (2.4%) and M. szulgai (2.4%). Results obtained in our hospital were very similar to the rates which have been reported previously. Patients with MAC infection showed relatively poor prognosis (eight patients were died out of 28 patients with MAC) in this study compared with the cases reported in previous papers, and this result could be explained by the severity of illness when they were admitted to our hospital, the insufficiency of the initial treatment which should be started with the combined use of three to four antibacterial drugs including clarithromycin, and to a low dosage of clarithromycin compared with conventionally adopted dosage. Unlike tuberculosis, human to human transmission is considered to be negligible in the case of NTM disease, and general hospitals are able to provide medical care to the patients with NTM disease. Rather, if general hospitals which are located in the region near to the patients residence can play more active role in the treatment of NTM disease, it would be more beneficial to patients requiring long-term follow-up observation. Based on the result that similar therapeutic results were obtained for infections with other NTM as reported in previous papers, it is indicated that general hospitals are able to provide medical care to patients with NTM disease if therapeutic regimens recommended by specialist are sufficiently understood and applied.
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Affiliation(s)
- Y Akita
- Department of Respiratory Disease, Daido Hospital, Nagoya, Japan
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46
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Matsuzoe D, Hideshima T, Kimura A, Inada K, Watanabe K, Akita Y, Kawahara K, Shirakusa T. p53 mutations predict non-small cell lung carcinoma response to radiotherapy. Cancer Lett 1999; 135:189-94. [PMID: 10096428 DOI: 10.1016/s0304-3835(98)00292-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [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: 11/28/2022]
Abstract
In vitro and animal studies, the effect of loss of p53 function on radiosensitivity is controversial. p21Waf1/Cip1 is a potent inhibitor of cyclin-dependent kinases and p21 gene polymorphisms are associated with some human cancers. We sought to determine whether p53 mutations or p21 polymorphisms affect response to radiotherapy in patients with recurrent non-small cell lung carcinoma (NSCLC). Thirty-four patients with NSCLC who underwent radiotherapy for recurrent tumors after potentially curative resection were studied. Gene alterations or polymorphisms were analyzed in DNA from the primary tumor tissue, and the response to radiotherapy was based on the metastatic lesion. Mutations in exons 5-8 of the p53 gene were detected by polymerase chain reaction (PCR)-single strand conformation polymorphism (SSCP) analysis. p21 gene polymorphisms were identified by restriction digestion (BsmAI or PstI) of PCR products. Mutations in p53 were found in 13 of 34 patients (38.2%). The response rates (complete plus partial) were 15.4% for patients with tumors having p53 mutations and 61.9% for patients with wild-type p53 (P = 0.013). There was no significant difference between p21 polymorphisms and response to radiation. p53 gene mutations predict response to radiotherapy in NSCLC. Our results provide clinical support for the in vitro model that loss of p53 function decreases radiosensitivity.
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Affiliation(s)
- D Matsuzoe
- Second Department of Surgery, School of Medicine, Fukuoka University, Japan
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47
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Nishikawa J, Kawai H, Takahashi A, Seki T, Yoshikawa N, Akita Y, Mitamura K. Seroprevalence of immunoglobulin G antibodies against Helicobacter pylori among endoscopy personnel in Japan. Gastrointest Endosc 1998; 48:237-43. [PMID: 9744597 DOI: 10.1016/s0016-5107(98)70184-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [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: 01/11/2023]
Abstract
BACKGROUND The seroprevalence of immunoglobulin G antibodies against Helicobacter pylori in endoscopy personnel was determined to investigate whether gastrointestinal endoscopists and endoscopy nurses in Japan are at an increased risk for H. pylori infection and to clarify risk factors for H. pylori infection during endoscopy. METHODS One hundred twenty-one gastrointestinal endoscopists and endoscopy nurses provided personal information, including their observance of infection-control measures, by means of self-administered questionnaire. One hundred one age-matched healthy individuals undergoing routine physical examinations served as controls. Serum samples from each subject were examined with enzyme-linked immunosorbent assay for the presence of IgG antibodies against H. pylori. RESULTS Among younger subjects (< 40 years old), endoscopists and endoscopy nurses had higher seropositive rates than did control subjects (p < 0.05). Among older subjects (> or = 40 years old), the seropositive rate did not differ between endoscopy personnel and control subjects (p = 0.2174). However, among older seropositive subjects, endoscopy personnel had significantly higher antibody titers than did control subjects (p < 0.01). Older seropositive endoscopists performed significantly more examinations per month than did their seronegative colleagues (p < 0.05). Furthermore, younger seropositive endoscopy nurses performed significantly more examinations per month than did seronegative nurses (p < 0.05). CONCLUSIONS Gastrointestinal endoscopists and endoscopy nurses in Japan are at high risk for H. pylori infection. The risk of H. pylori infection is correlated with the frequency of endoscopic examinations, especially in older gastrointestinal endoscopists and younger endoscopy nurses.
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Affiliation(s)
- J Nishikawa
- Second Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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48
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Abstract
To evaluate rectal mucosal hemodynamics in patients with chronic hepatitis, we employed reflectance spectrophotometry and examined the results in relation to the presence and severity of chronic hepatitis. Twenty-six patients with histologically diagnosed chronic hepatitis and 21 controls were examined for rectal vascular findings by endoscopy. Indices (I) of rectal mucosal oxygen saturation (ISO2) and rectal mucosal hemoglobin (IHb) concentration were measured. To minimize the effects of systemic anemia, the IHb was divided by blood Hb concentration, giving the rectal index for Hb (RHb). The relationship between rectal mucosal hemodynamics and the histological grade of chronic hepatitis was studied. Rectal vascular lesions were observed in three patients with chronic hepatitis (11.5%). The RHb in patients with chronic hepatitis was significantly higher than that in the controls (5.74 +/- 0.71 and 4.82 +/- 1.12, respectively; P < 0.01). There was no significant difference in ISO2 levels (44.23 +/- 5.84 and 41.94 +/- 4.91, respectively). No significant correlation was observed between rectal mucosal hemodynamics and the histological severity of chronic hepatitis, although rectal mucosal hemodynamics changed in patients with chronic hepatitis. Early vascular changes were observed in the rectal mucosa of patients with chronic hepatitis.
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Affiliation(s)
- K Konishi
- Second Department of Internal Medicine, Showa University School of Medicine, Shinagawa, Tokyo, Japan
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49
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Hanzawa M, Yoshikawa N, Tezuka T, Konishi K, Kaneko K, Akita Y, Mitamura K, Tsunoda A, Takada M, Kusano M. Surgical treatment of Cronkhite-Canada syndrome associated with protein-losing enteropathy: report of a case. Dis Colon Rectum 1998; 41:932-4. [PMID: 9678383 DOI: 10.1007/bf02235381] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [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: 02/08/2023]
Abstract
PURPOSE The case of a patient with Cronkhite-Canada syndrome, who developed a protein-losing enteropathy, is reported. METHODS After localization of the protein-losing region, a right colectomy was performed. RESULTS Hypoproteinemia and ectodermal changes improved postoperatively. CONCLUSIONS Surgery is an effective treatment for protein-losing enteropathy in Cronkhite-Canada syndrome. Ectodermal changes improve after correcting malnutrition.
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Affiliation(s)
- M Hanzawa
- Second Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
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50
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Abstract
It has been shown that G proteins are potential regulatory molecules in the transmembrane signaling cascade. The aim of this study was to examine the possibility of equivalent G-protein redistribution and/or down-regulation in a target cell upon agonist stimulation. Short-term (0-80 min) incubation of rat pituitary GH4C1 cells with vasoactive intestinal peptide (VIP, 0.1 microM) induced a decrease in the levels of Gsalpha in the membrane fraction, whereas immunoblot analysis and reconstitution assay of adenylyl cyclase clearly showed an increase in the amount of Gsalpha in the supernatant (cytosolic) fraction. The VIP-induced release of G proteins alpha subunits from membranes was specific for Gsalpha. The VIP-dependent release of Gsalpha from membranes was blocked by a VIP-receptor antagonist, (N-Ac-Tyr,D-Phe)-GRF(1-29)-NH2 (10 microM). Pituitary adenylate cyclase-activating polypeptide (PACAP) also stimulated the release of Gsalpha from membranes of GH4C1 cells. Furthermore, prolonged exposure of cells to VIP (0.1 microM) for 2-24 h caused a 21-40% decrease in Gsalpha from membranes and a 6% increase in total Gsalpha in the cytosolic fraction. The effect of VIP was dose-dependent with ED50 values of 81.6+/-20.0 nM for down-regulation and 2.5+/-0.3 nM for translocation of Gsalpha. Concurrent treatment of GH4C1 cells with VIP and cycloheximide indicated that suppression of protein synthesis de novo did not mimic the effect of VIP. Moreover, the chase experiment of 35S-labeled Gsalpha clearly demonstrated a more rapid rate of decay in the cells maintained in the presence of the agonist. These data indicate that VIP-receptor activates Gsalpha protein and induces the release of Gsalpha from membranes along with its down-regulation in cellular levels.
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Affiliation(s)
- Y Yajima
- Department of Molecular Biology, The Tokyo Metropolitan Institute of Medical Science, Bunkyo-ku, Tokyo, 113-8613, Japan.
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