Publications by authors named "Junko Hori"

We report the case of a 48-year-old man who presented with fatigue and weight loss. A local physician observed elevated alkaline phosphatase levels, anemia, thrombocytopenia, and renal dysfunction. Fever also appeared, and the patient was admitted to our hospital.

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Article Synopsis
  • The study assessed the long-term effectiveness of infliximab (IFX) for treating uveitis in patients with Behçet disease over a 10-year period.
  • Results indicated that 75.7% of the 140 patients continued IFX treatment for the entire decade, with significant improvements in visual acuity observed starting at 2 years of treatment.
  • However, recurrence of uveitis was noted in 50 patients, with a higher frequency of ocular attacks prior to IFX, while 30.7% of patients experienced adverse events, leading to discontinuation in some cases.
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Scleritis involves inflammation of the sclera, which constitutes 75% of the wall of the eye. This pathology is often seen as an ocular lesion associated with systemic inflammatory diseases. Severe types of scleritis such as posterior scleritis require urgent immunosuppressive treatments, including molecularly targeted therapies to avoid permanent visual impairment.

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Purpose: To compare the efficacy and safety of a combination therapy of prednisolone and cyclosporine and corticosteroid pulse therapy in Vogt-Koyanagi-Harada (VKH) disease.

Study Design: A prospective, multicenter, randomized, non-inferiority trial.

Methods: Patients of new-onset acute VKH disease at 11 centers in Japan between 2014 and 2018 were randomized to a combination (oral prednisolone 60 mg daily with gradual taper-off to 35 mg/day and cyclosporine 3 mg/kg/day) and corticosteroid (methylprednisolone 1000 mg for 3 days followed by oral prednisolone) groups, and were followed for 1 year.

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The patient was a 69-year-old man diagnosed with stage ⅣB lung adenocarcinoma with 95% programmed death- ligand 1 expression, and pembrolizumab monotherapy was initiated. The patient exhibited fatigue from the 12th course(36 weeks after treatment initiation) of treatment. Chest computed tomography revealed scattered ground-glass opacities in the upper lobes of both lungs, and he was subsequently diagnosed with interstitial pneumonia.

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Sarcoidosis is a genetically complex systemic inflammatory disease that affects multiple organs. We present a GWAS of a Japanese cohort (700 sarcoidosis cases and 886 controls) with replication in independent samples from Japan (931 cases and 1,042 controls) and the Czech Republic (265 cases and 264 controls). We identified three loci outside the HLA complex, CCL24, STYXL1-SRRM3, and C1orf141-IL23R, which showed genome-wide significant associations (P < 5.

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The eye is provided with immune protection against pathogens in a manner that greatly reduces the threat of inflammation-induced vision loss. Immune-mediated inflammation and allograft rejection are greatly reduced in the eye, a phenomenon called 'immune privilege'. Corneal tissue has inherent immune privilege properties with underlying three mechanisms: (1) anatomical, cellular, and molecular barriers in the cornea; (2) an immunosuppressive microenvironment; and (3) tolerance related to regulatory T cells and anterior chamber-associated immune deviation.

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Purpose: V-domain immunoglobulin suppressor of T cell activation (VISTA) is a novel immune checkpoint receptor and ligand for regulating T cell proliferation and cytokine production. The purpose of the present study was to determine the role of VISTA in the immune privilege of corneal allografts.

Methods: Expression of VISTA mRNA in mouse eyes was assessed with reverse-transcription PCR.

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Corneal transplantation is the most successful solid organ transplantation performed in humans. The extraordinary success of orthotopic corneal allografts, in both humans and experimental animals, is related to the phenomenon of "immune privilege". Inflammation is self-regulated to preserve ocular functions because the eye has immune privilege.

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Purpose: Corneal endothelial cell density undergoes a progressive decrease for many years after transplantation, eventually threatening patients with late endothelial failure. The purpose of this study was to investigate the possibility of an immunologic response in successfully grafted corneal endothelium.

Methods: The corneal endothelium of patients who had undergone corneal transplantation was evaluated by specular microscopy.

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Purpose: The interaction between the inducible costimulatory molecule (ICOS) and ICOS ligand (ICOSL) has been implicated in the differentiation and functions of T cells. The purpose of the present study was to determine the role of ICOS-ICOSL in the immune privilege of corneal allografts.

Methods: Expression of ICOS and ICOSL mRNA from mouse eyes was assessed by RT-PCR.

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Objectives: Behçet's disease (BD) is a systemic inflammatory disorder polarised to the Th1 and Th17 immune systems. Allergic diseases are polarised to the Th2 immune system. The aim of the present study is to investigate the prevalence of allergic diseases in patients who have BD.

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Purpose: To report the clinical statistical analysis of patients with endogenous intraocular inflammation who visited Nippon Medical School Hospital during the 8 years from 2004 to 2012.

Subjects And Methods: This retrospective study involved 759 new patients with endogenous intraocular inflammation who visited Nippon Medical School Hospital during the 8 years from April 2004 to April 2012.

Results: The subjects comprised 357 men and 402 women.

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A 73-year-old man visited our hospital for consultation regarding a pancreatic tumor. Abdominal computed tomography, magnetic resonance imaging, and endoscopic ultrasound scan (EUS) revealed tumor 2 cm in diameter located in the pancreatic tail. EUS-guided fine needle aspiration (EUS-FNA) suggested pancreatic mixed acinar-endocrine carcinoma, and he underwent distal pancreatectomy.

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Purpose: To evaluate the long-term efficacy and safety of infliximab for the treatment of uveitis in Behçet's disease (BD).

Design: Retrospective multicenter study using a questionnaire.

Participants: A total of 164 consecutive patients with BD treated with infliximab for more than 1 year were studied.

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The eye is an immune-privileged organ, and corneal transplantation is therefore one of the most successful organ transplantation. The immunosuppressive intraocular microenvironment is known as one of the mechanisms underlying immune privilege in the eye. T-cell immunoglobulin and mucin domain (Tim)-3 is a regulatory molecule for T-cell function, and galectin (Gal)-9 is a Tim-3 ligand.

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The original evidence for the existence of immunologically privileged sites in the body was based on the prolonged survival of genetically disparate transplanted tissue in the anterior chamber of the eye. The failure of the immune system to elicit an immune response in this and other such sites constitutes the hallmark of the immune privilege status. The remarkably successful field of corneal transplantation in clinical practice is undoubtedly associated with corneal immune privilege.

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Purpose: The pathway between the glucocorticoid-induced tumor necrosis factor receptor family-related protein (GITR) and GITR ligand (GITRL) has been shown to control the function of regulatory T cells (Treg). The present study was conducted to investigate the role of this pathway and Treg in establishing immune privilege status for corneal allografts.

Methods: Corneas of C57BL/6 mice were orthotopically transplanted into the eyes of BALB/c mice, and graft survival was assessed.

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The eye, like the brain and reproductive organs, possesses inherent immune privilege, and inflammation is self-regulated so as to preserve the organ functions. Studies over the past 30 years have provided insights of the multiple mechanisms of immune privilege. At present, three major lines of thought prevail regarding the molecular mechanisms of immune privilege in the eye: there are (1) anatomical, cellular, and molecular barriers in the eye; (2) eye-derived immunological tolerance, the so-called anterior chamber-associated immune deviation; and (3) immune suppressive intraocular microenvironment.

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The present study determined whether topical latanoprost, a prostaglandin (PG) F(2alpha) analog, influences the induction of anterior chamber-associated immune deviation (ACAID), corneal neovascularization (NV) or survival of corneal allografts in mice. BALB/c mice received topical latanoprost or PGE(2) once or multiple times daily starting 4 weeks prior to or the day of anterior chamber injection of C57BL/6 splenocytes. Induction of allo-specific ACAID was assessed by ear challenge with C57BL/6 splenocytes 1 week after subcutaneous immunization.

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