Mio Kawaguchi

University of Tsukuba, Tsukuba, Ibaraki, Japan

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Publications (74)200.82 Total impact

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    ABSTRACT: Cases of ossification and increased bone mineral density (BMD) at sites of bone metastasis following zoledronic acid (ZA) treatment have not been reported. The current study presents the case of a 65-year-old patient with lung adenocarcinoma and bone metastases in the lumbar vertebrae and femurs. Ossification and an increase in BMD at the metastatic sites was achieved following treatment with ZA and irradiation of the bone metastatic sites. The patient was able to maintain a normal lifestyle for over two years, despite the bone metastases. Therefore, as treatment with ZA was demonstrated to improve patient quality of life, physicians should consider this treatment strategy, particularly for the treatment of metastasis in weight-bearing bones.
    Experimental and therapeutic medicine 10/2014; 8(4):1267-1270. · 0.34 Impact Factor
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    ABSTRACT: Patients with skin metastasis always had disseminated metastases in many organs. We herein report an unusual case with skin metastasis from small cell lung cancer (SCLC). The patient was treated with platinum-containing chemotherapy, and the response to the therapy was evaluated as partial response. The patient had slowly progressive disease and died of SCLC 16 months after the diagnosis of the diseases. If skin lesions, whether it may be typical or not, are found in SCLC patients, biopsy from the lesion would be considered to perform. Although trunk may be the most common sites, it is important to suspect such metastasis occurs in patients with SCLC.
    Tuberkuloz ve toraks 06/2014; 62(2):147-150.
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    ABSTRACT: The long-term safety of budesonide/formoterol (BUD/FM) inhalation has not been fully evaluated, particularly in elderly patients with bronchial asthma. To evaluate the 12-month safety of BUD/FM inhalation for elderly asthmatic patients, the changes in serum potassium levels and pulse rate were examined. A retrospective chart review was conducted of consecutive patients who were treated with BUD/FM inhalation (two inhalations of 160/4.5 mg, twice daily; Symbicort Turbuhaler, AstraZeneca) at a hospital between February 2010 and January 2012. A total of 350 patients were treated with BUD/FM inhalation during the study period and were followed up over 12 months. The mean age of the patients was 60 years, and 19.4% and 21.4% of the patients were aged 65-74 years and ≥75 years, respectively. One hundred and fourteen (32.6%) of the 350 patients continued the inhalation therapy for >12 months. Compared with the pretreatment data, reductions in serum potassium levels at 1, 6 and 12 months were not observed, even in the patients aged 65-74 and ≥75 years. There was also no increase in the pulse rate at 1, 6 and 12 months, even in the patients aged 65-74 and ≥75 years. The usual dosage of BUD/FM showed no adverse effects on the serum potassium levels and pulse rate in the adults, including the elderly with persistent asthma.
    Experimental and therapeutic medicine 04/2014; 7(4):1005-1009. · 0.34 Impact Factor
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    ABSTRACT: To the best of our knowledge, the formation of a retroperitoneal abscess due to acute appendicitis shortly after administration of chemotherapy for lung cancer has not been previously reported. This is the case report of a 59-year-old male who was admitted to the Mito Medical Center (Mito, Japan) and diagnosed with lung adenocarcinoma with pleuritis carcinomatosis. Although no distant metastasis was identified, combination chemotherapy with cisplatin and pemetrexed was administered. Nine days after initiating chemotherapy, the patient developed right lower quadrant abdominal pain and high fever. Computed tomography (CT) of the abdomen and pelvis revealed the collection of gas and fluid in the retroperitoneum adjacent to the cecum. The abscess was locally drained; however, the infection continued to spread, with subsequent development of a scrotal abscess. Consequently, appendectomy was performed. The patient recovered well and the lung adenocarcinoma was treated with additional courses of chemotherapy following the remission of the local inflammation. Retroperitoneal abscess due to acute appendicitis is an unusual finding; however, this rare complication should be considered during or shortly after chemotherapy in patients with lung cancer.
    Molecular and clinical oncology. 03/2014; 2(2):302-304.
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    ABSTRACT: The brain is one of the most common sites of metastasis of small-cell lung cancer (SCLC). In this study, we reported 6 cases with isolated brain relapse of SCLC ≥1 year after the completion of the initial treatment for SCLC. Of the 6 patients, 2 had a solitary brain metastasis and 4 had ≥2 brain metastatic sites. The metastases were identified during a regular check-up computed tomography (CT) scan and were successfully treated. The median interval from the initial diagnosis to the development of brain metastasis was 16 months (range, 13-30 months). All patients received whole-brain irradiation and achieved a complete response. Only one patient developed disturbances of the higher cerebral function. The median interval from whole-brain irradiation to death or last follow-up was 33 months (range, 8-90 months). To the best of our knowledge, these are the first reported cases with isolated brain relapse of SCLC. Although a rare finding, clinicians should be alert on the possibility of such recurrence, particularly in patients who refused prophylactic cranial irradiation.
    Molecular and clinical oncology. 03/2014; 2(2):305-307.
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    ABSTRACT: The expression of IL-17F is seen in the airway of asthmatics and its level is correlated with disease severity. Several studies have demonstrated that IL-17F plays a pivotal role in allergic airway inflammation and induces several asthma-related molecules such as CCL20. IL-17F-induced CCL20 may attract Th17 cells into the airway resulting in the recruitment of additional Th17 cells to enhance allergic airway inflammation. We have recently identified, for the first time, that bronchial epithelial cells are its novel cell source in response to IL-33 via ST2-ERK1/2-MSK1 signaling pathway. The receptor for IL-17F is the heterodimeric complex of IL-17RA and IL-17RC, and IL-17F activates many signaling pathways. In a case-control study of 867 unrelated Japanese subjects, a His161 to Arg161 (H161R) substitution in the third exon of the IL-17F gene was associated with asthma. In atopic patients with asthma, prebronchodilator baseline FEV1/FVC values showed a significant association with the H161R variant. Moreover, this variant is a natural antagonist for the wild-type IL-17F. Moreover, IL-17F is involved in airway remodeling and steroid resistance. Hence, IL-17F may play an orchestrating role in the pathogenesis of asthma and may provide a valuable therapeutic target for development of novel strategies.
    Journal of immunology research. 01/2014; 2014:602846.
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    ABSTRACT: The brain is one of the most common sites for the metastasis of small cell lung cancer (SCLC). The present study describes two cases of an isolated solitary brain metastasis as a relapse of SCLC, which occurred more than one year after the completion of the initial successful treatment for SCLC. The tumors were identified during a regular check-up computed tomography (CT) scan and were successfully treated. To the best of our knowledge, this is the first study to report the cases of two patients with an isolated solitary brain metastasis as a relapse of SCLC. Although extremely rare, the possibility of such recurrences should be considered, particularly in patients who have refused prophylactic cranial irradiation.
    Oncology letters 10/2013; 6(4):1108-1110. · 0.24 Impact Factor
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    ABSTRACT: The current study presents a rare case of small cell lung cancer (SCLC) with endobronchial growth in a 68-year-old male. Chest CT scans revealed an ill-defined mass in the upper lobe of the right lung, with ipsilateral mediastinial lymph node swelling. An endobronchial polypoid tumor in the right B3 bronchus was located by bronchoscopic examination. The analysis of a biopsy specimen obtained from the tumor resulted in a diagnosis of SCLC. Although extremely rare, this case highlights the importance of considering a diagnosis of SCLC in patients presenting with a pulmonary tumor adjacent to the bronchus, with an endobronchial polypoid lesion.
    Oncology letters 08/2013; 6(2):553-555. · 0.24 Impact Factor
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    ABSTRACT: The prognosis of carcinomatous peritonitis and meningitis is poor since ascites and focal neurological dysfunctions usually do not improve despite the available treatment options for this devastating disease. This is a case report of peritoneal and meningeal relapse from lung adenocarcinoma following a response to gefitinib. A 72-year-old woman was diagnosed with adenocarcinoma in the upper lobe of the left lung, accompanied by a massive carcinomatous pleural effusion. Following a cisplati-based chemotherapy, gefitinib was initiated, achieving satisfactory disease control. At 8 months after gefitinib initiation, the patient developed abdominal distension, gait disturbance and visual disorder of the right eye. Adenocarcinoma cells were detected in the ascitic and pleural fluids. The findings of this case report suggest that clinicians should remain vigilant for this type of metastasis, although it is rarely encountered.
    Molecular and clinical oncology. 07/2013; 1(4):785-787.
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    ABSTRACT: The purpose of this study was to examine clinical features and treatment modality approaches in patients with chronic obstructive pulmonary disease (COPD), particularly in those aged 80 years and older. Using databases available at Mito Kyodo General Hospital (Japan), the medical records of COPD patients between April 2009 and December 2011 were retrospectively reviewed. The patient population was divided into three age groups; less than 70 years (the <70 age group), between 70-79 years (the 70-79 age group) and 80 years or older (the ≥80 age group). Demographic data, as well as the efficacy and safety of tiotropium, were compared between the three groups. Patients in the ≥80 age group comprised 35.6% of the study population with COPD (n=174). The ≥80 and 70-79 age groups demonstrated a higher proportion of comorbid disease compared with the <70 age group. A subjective improvement of dyspnea on effort as well as no additional adverse effects were observed in the ≥80 age group, similar to the other two age groups. However, higher incidence of acute exacerbation of COPD in patients aged ≥80 years old was found, particularly in those with comorbid disease. The efficacy and safety of tiotropium in COPD patients in the ≥80 age group were almost identical to patients <80 years old, however, physicians must be cautious with acute exacerbation of COPD in the extremely elderly population with comorbid disease.
    Experimental and therapeutic medicine 04/2013; 5(4):997-1000. · 0.34 Impact Factor
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    ABSTRACT: In refractory asthma, neutrophils, rather than eosinophils, often predominate in the airways. Neutrophilic airway inflammation appears to be resistant to steroids and may be related to the Th17, rather than the Th2, cytokine milieu. However, the role of GATA-3 and RORγt, transcription factors for Th2 and Th17 cell differentiation, respectively, in the pathogenesis of steroid-insensitive asthma remains unclear. To examine the effect of GATA-3- and RORγt-overexpression backgrounds on airway inflammation and steroid sensitivity, we generated two strains of transgenic mice overexpressing GATA-3 or RORγt. Mice were sensitized and challenged with OVA. Some OVA-sensitized/challenged mice were treated with dexamethasone, anti-IL-17 Ab, CXCR2 antagonist, or anti-IL-6R Ab to demonstrate their therapeutic effects on airway inflammation. Although Ag-specific airway inflammation and hyperresponsiveness were induced in each mouse, the phenotype of inflammation showed a distinct difference that was dependent upon the genotype. GATA-3-overexpressing mice exhibited steroid-sensitive eosinophilic inflammation with goblet cell hyperplasia and mucus hyperproduction under Th2-biased conditions, and RORγt-overexpressing mice developed steroid-insensitive neutrophilic inflammation under Th17-biased conditions. The levels of keratinocyte-derived chemokine, MIP-2, IL-6, and other neutrophil chemotaxis-related mediators were significantly elevated in OVA-exposed RORγt-overexpressing mice compared with wild-type mice. Interestingly, airway hyperresponsiveness accompanied by neutrophilic airway inflammation in RORγt-overexpressing mice was effectively suppressed by anti-IL-17 Ab, CXCR2 antagonist, or anti-IL-6R Ab administration. In conclusion, our results suggest that the expression levels of GATA-3 and RORγt may be important for determining the phenotype of asthmatic airway inflammation. Furthermore, blockade of the Th17-signaling pathway may be a treatment option for steroid-insensitive asthma.
    The Journal of Immunology 01/2013; · 5.52 Impact Factor
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    ABSTRACT: We herein report the case of a 39-year-old man with recurrent asthma exacerbations preceded by abdominal cramps with the urge to defecate. The patient had a history of near-fatal asthma associated with these gastrointestinal symptoms starting five years before his admission. He stated that, even when his daily asthma symptoms were under control, he suffered from attacks, especially when he had a strong urge to defecate. Although the contribution of increased parasympathetic tone to the onset of bronchospasms was likely, anticholinergics were not effective. Instead, the patient's symptoms successfully improved following the prophylactic use of laxatives, which might therefore be an appropriate therapeutic option for this type of asthma.
    Internal Medicine 01/2013; 52(6):685-7. · 0.97 Impact Factor
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    ABSTRACT: Steroid-insensitive asthma is an infrequent but problematic airway disease that presents with persistent symptoms, airflow limitation, or recurrent exacerbations even when treated with steroid-based therapies. Because of unsatisfactory results obtained from currently available therapies for steroid-insensitive asthma, a better understanding of its pathogenesis and the development of new targeted molecular therapies are warranted. Recent studies indicated that levels of interleukin (IL)-17 are increased and both eosinophils and neutrophils infiltrate the airways of severe asthmatics. IL-17 is a proinflammatory cytokine mainly secreted from helper T (Th) 17 cells and is important for the induction of neutrophil recruitment and migration at sites of inflammation. This review focuses on the pathogenetic role of Th17 cells and their associated cytokines in steroid-insensitive asthma and discusses the prospects of novel therapeutic options targeting the Th17 signaling pathway.
    Clinical and Developmental Immunology 01/2013; 2013:609395. · 3.06 Impact Factor
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    ABSTRACT: Multipotent mesenchymal stem cells (MSCs) have become a promising therapeutic approach in many clinical conditions. The hypothesis that MSCs can provide a potential therapy for human anti-glomerular basement membrane (GBM) glomerulonephritis (GN) was tested. Nephrotoxic serum nephritis was induced in Wistar-Kyoto rats on day 0. Groups of animals were given either human MSCs (hMSCs, 3×10(6)) or vehicle by intravenous injection on day 4; all rats were sacrificed at either day 7 or day 13. Fluorescently labeled hMSCs were localized in glomeruli and tubulointerstitium 5 h after hMSC administration and persisted until 48 h, but hMSCs were barely detectable after 7 days. hMSC-treated rats had decreased kidney weight, proteinuria, and glomerular tuft area at each time point. The serum creatinine level and degree of glomerular crescent formation were decreased by hMSC treatment on day 13. ED1-positive macrophages, CD8-positive cells, and TUNEL-positive apoptotic cells in glomeruli were reduced by hMSC treatment on day 7, and this trend in apoptotic cells persisted to day 13. Renal cortical mRNA for TNF-α, IL-1β, and IL-17, and the serum IL-17A level were decreased, whereas renal cortical mRNA for IL-4 and Foxp3 and the serum IL-10 level were increased in the MSC-treated group on day 7. Collagen types I and III and TGF-β mRNA were decreased by hMSC treatment on day 13. The present results demonstrated that anti-inflammatory and immunomodulatory effects were involved in the mechanism of attenuating established experimental anti-GBM GN by hMSCs. These results suggest that hMSCs are a promising therapeutic candidate for the treatment of anti-GBM GN.
    PLoS ONE 01/2013; 8(6):e67475. · 3.73 Impact Factor
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    ABSTRACT: A 69-year-old man, who underwent total thymectomy 5 years previously, was referred to our division because the chest radiograph revealed abnormal shadows in both the lungs. The chest radiograph and CT scan showed pleural thickening in both apexes and tree-in-bud signs in both the lower lobes, which suggested bronchiolitis. We had retrospectively confirmed similar centrilobular small nodules and tree-in-bud signs on the chest CT scan when the thymoma was diagnosed. Mycobacterium intracellulare was detected in the sputum by acid-fast staining and polymerase chain reaction. The coincidence of thymoma and Mycobacterium intracellulare infection appeared to be incidental. Thus, in patients with thymoma, clinicians should carefully evaluate the lung parenchyma as well as the mediastinum on the chest radiograph to identify occult diseases, including Mycobacterium intracellulare infections.
    Kekkaku: [Tuberculosis] 11/2012; 87(11):701-5.
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    ABSTRACT: We report the case of an 85-year-old woman who had pulmonary tuberculosis when she was in her forties. She was referred to our hospital because of hemoptysis, which lasted for a few days. Her laboratory data was unremarkable. Chest computed tomography (CT) scan showed a thin-walled cavity with extensive calcification in the right S2. There was no infiltrative shadow or bronchiectatic changes observed around the cavity. Active bleeding was observed to be occurring from the right B2. After arterialization, embolization was performed in the right S2. On the basis of the findings from this case, we recommend that clinicians perform bronchoscopy in patients with hemoptysis even if imaging studies show no typical findings suggesting hemorrhage. Further, although rare, old tuberculosis lesions such as a thin-walled cavity with calcification can cause hemoptysis.
    Kekkaku: [Tuberculosis] 10/2012; 87(10):655-8.
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    ABSTRACT: The aim of this study was to clarify the effect of aging on renal function. Serum creatinine (SCr), blood urea nitrogen (BUN) and 24-h creatinine clearance (measured-CrCl) were examined in lung cancer patients and the measured-CrCl were compared with CrCl estimates by employing two commonly used equations. In total, 787 lung cancer patients who were diagnosed between 2001 and 2010 were retrospectively analyzed. SCr and urine creatinine, BUN and measured-CrCl were evaluated prior to treatment. The Cockcroft-Gault (CG) and modification of diet in renal disease (MDRD) formulae were also used to estimate CrCl. SCr, BUN and measured-CrCl showed a significant decline in the elderly. In the 787 lung cancer patients, a significant correlation coefficient was found between measured-CrCl and age. However, in patients aged 80 years or older, no significant correlation coefficient was found between measured-CrCl and age. In the comparison between the measured CrCl and the CrCls estimated by the two formulae, the CG-CrCl levels were lower than those of the measured-CrCl, whereas the MDRD-CrCl levels were higher. Age is a crucial factor influencing renal function in patients with lung cancer. Particularly in the elderly, a decline in CrCl and greater individual variability in CrCl, as well as discrepancies in measured-CrCl and estimated CrCls are significant factors.
    Oncology letters 07/2012; 4(1):38-42. · 0.24 Impact Factor
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    ABSTRACT: IL-33 is clearly expressed in the airway of patients with asthma, but its role in asthma has not yet been fully understood. IL-17F is also involved in the pathogenesis of asthma. However, the regulatory mechanisms of IL-17F expression remain to be defined. To further indentify the role of IL-33 in asthma, we investigated the expression of IL-17F by IL-33 in bronchial epithelial cells and its signaling mechanisms. Bronchial epithelial cells were stimulated with IL-33. The levels of IL-17F expression were analyzed using real-time PCR and ELISA. Next, the involvement of ST2, MAP kinases, and mitogen- and stress-activated protein kinase1 (MSK1) was determined by Western blot analyses. Various kinase inhibitors and anti-ST2 neutralizing Abs were added to the culture to identify the key signaling events leading to the expression of IL-17F, in conjunction with the use of short interfering RNAs (siRNAs) targeting MSK1. IL-33 significantly induced IL-17F gene and protein expression. The receptor for IL-33, ST2, was expressed in bronchial epithelial cells. Among MAP kinases, IL-33 phosphorylated ERK1/2, but not p38MAPK and JNK. It was inhibited by the pretreatment of anti-ST2 neutralizing (blocking) Abs. MEK inhibitor significantly blocked IL-17F production. Moreover, IL-33 phosphorylated MSK1, and MEK inhibitor diminished its phosphorylation. Finally, MSK1 inhibitors and transfection of the siRNAs targeting MSK1 significantly blocked the IL-17F expression. IL-33 induces IL-17F via ST2-ERK1/2-MSK1 signaling pathway in bronchial epithelial cells. These data suggest that the IL-33/IL-17F axis is involved in allergic airway inflammation and may be a novel therapeutic target.
    Allergy 04/2012; 67(6):744-50. · 5.88 Impact Factor
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    Tuberkuloz ve toraks 03/2012; 60(1):98-9.
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    ABSTRACT: We investigated the potential role of IL-17A in the induction of granulocyte colony-stimulating factor (G-CSF), a critical granulopoietic growth factor, in human renal proximal tubular epithelial cells. Human renal proximal tubular cells (HK-2, ATCC) were used to characterize the effects of IL-17A or IL-17F on G-CSF production, using ELISA, real-time RT-PCR, and immunoblotting. The cell surface expression of IL-17 receptors (IL-17Rs) was analyzed by flow cytometry. IL-17A stimulation of proximal tubular cells led to a dose- and time-dependent increase in secreted G-CSF. This effect was dependent on mRNA transcription and protein translation. Real-time RT-PCR demonstrated that G-CSF mRNA expression reached a maximum level at 6 h following IL-17A stimulation and that this increase was dose dependent. Both IL-17RA and IL-17RC were expressed on proximal tubular cells. IL-17A also enhanced TNF-α- or IL-1β-mediated G-CSF secretion from cells. Additionally, IL-17A induced MAPK (ERK1/2 but not p38 MAPK or JNK) activation, and pharmacological inhibitors of MEK1/2 (U0126) but not of p38 MAPK (SB203580) or JNK (SP600125), significantly blocked the IL-17A-mediated G-CSF release. We demonstrated the potential ability of IL-17A to induce G-CSF in renal proximal tubular cells. It is proposed that IL-17A may play an important role in neutrophil transmigration and activation via stimulation of G-CSF in tubular injury.
    AJP Renal Physiology 01/2012; 302(2):F244-50. · 4.42 Impact Factor

Publication Stats

1k Citations
200.82 Total Impact Points

Institutions

  • 2008–2014
    • University of Tsukuba
      • Institute of Clinical Medicine
      Tsukuba, Ibaraki, Japan
  • 2000–2013
    • Showa University
      • • Department of Medicine
      • • Division of Allergology and Respiratory Medicine
      • • Division of Nephrology
      • • Department of Internal Medicine
      Shinagawa, Tōkyō, Japan
  • 2010
    • Tsukuba Medical Center Hospital
      Tsukuba, Ibaraki, Japan
  • 2009
    • Numazu City Hospital
      Sizuoka, Shizuoka, Japan
  • 2001–2008
    • Johns Hopkins University
      • Johns Hopkins Asthma and Allergy Center
      Baltimore, Maryland, United States