• Title/Summary/Keyword: Autoimmune Disease

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Machine learning Anti-inflammatory Peptides Role in Recent Drug Discovery

  • Subathra Selvam
    • Journal of Integrative Natural Science
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    • v.17 no.1
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    • pp.21-30
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    • 2024
  • Several anti-inflammatory small molecules have been found in the process of the inflammatory response, and these small molecules have been used to treat some inflammatory and autoimmune diseases. Numerous tools for predicting anti-inflammatory peptides (AIPs) have emerged in recent years. However, conducting experimental validations in the lab is both resource-intensive and time-consuming. Current therapies for inflammatory and autoimmune disorders often involve nonspecific anti-inflammatory drugs and immunosuppressants, often with potential side effects. AIPs have been used in treating inflammatory illnesses like Alzheimer's disease and can limit the expression of inflammatory promoters. Recent advances in adverse incident predictions (AIPs) have been made, but it is crucial to acknowledge limitations and imperfections in existing methodologies.

A Case of Systemic Lupus Erythematosus Presenting as Cervical Lymphadenopathy (경부 림프병증으로 발현된 전신홍반루푸스 1예)

  • Hyun Seok, Kang;Jae Seon, Park;Tae Hwan, Kim;Sang Hyuk, Lee
    • Korean Journal of Head & Neck Oncology
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    • v.38 no.2
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    • pp.23-27
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    • 2022
  • Systemic lupus erythematosus(SLE) is a multisystemic disorder of autoimmune etiology. SLE can occur commonly in young women, and the early symptoms include fever, myalgia, arthralgia, weight loss, lymphadenopathy and these nonspecific symptoms develop into skin rash, splenomegaly, serositis and encephalopathy. Diagnosis of SLE requires clinical and serologic criteria, and treatment choices are hydroxyquinolone and NSAIDs for mild disease, corticosteroids and immunosuppressant for severe disease. In lupus patient, the prevalence of lymphadenopathy is 12~59%. Although lymphadenopathy is common finding in SLE, it is hard to distinguish in early phase of SLE. A 38-year-old woman visited our hospital for cervical lymphadenopathy with polyarthritis and malaise. Multiple cervical lymph nodes enlargement was found on Neck CT, and serologic laboratory test including ANA, antiphospholipid antibody, and anti-dsDNA was positive. For excluding lymphoma, PET-CT and excisional biopsy were performed. The patient finally diagnosed with SLE, and got regular follow-up without complication.

A Study of Literature on Acupuncture Treatments for the Skin Disease(Eunjin) (은진(隱疹)의 침구치료(鍼灸治療)에 대한 문헌적(文獻的) 고찰(考察))

  • Jang Yun-Seong;Hwang Bae-Yeon;Lee Sang-Ryong
    • Korean Journal of Acupuncture
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    • v.19 no.1
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    • pp.145-151
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    • 2002
  • Medical concept of the skin disease is a symptom like itchs. It outbreakes by immunologic and nonimmunologic mechanisms. The most common case is hypersensitive reaction intermediated by IgE. Other case of immunologic mechanism includes activation of the complement system. Autoimmune antibodies for histamine-secreting mast cell IgE receptors are found in some patients suffer from chronic skin paroxysm. Most common causes of acute skin paroxysm are foods, viruses, parasite infections and drugs. Causes of chronic skin paroxysm are undiscovered. Air pollution, simplification of eating habits, habitual eating of convenience food; drug abuse in present days made skin disease more common. Now many methods of acupunctural treatments are being used clinically. So this report presents some views about acupunctural treatments for the Skin disease.

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Nitric oxide-induced immune switching in experimental inflammatory autoimmune diseases

  • Kwak, Hyun-Jeong;Kim, Hyung-Jin;Park, Jae-Sung;Jun, Chang-Duk;Lee, Mun-Young;Shin, Tae-Kyun;Chung, Hun-Taeg
    • IMMUNE NETWORK
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    • v.1 no.2
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    • pp.116-125
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    • 2001
  • Background: Nitric oxide (NO) production has been described as a double-edged sword eliciting both pro- and anti-inflammatory effects in different immune reactions. This work was undertaken to investigate the immunoregulatory role of NO in experimental allergic encephalomyelitis (EAE) and experimental allergic uveitis (EAU). Method: We examined whether molsidomine (MSDM), a NO donor, administration to the myelin basic protein (MBP)- or interphotoreceptor retinoid binding protein (IRBP)-immunized rats could suppress EAE development by shifting toward the Th2 cytokine response. In the EAE experiments, the rats were treated orally with MSDM (10 mg/kg/day) at the early stage (-1~4 days) or throughout the experimental period (-1~15 days). Results: This resulted in significant amelioration of the disease and mild clinical symptoms, while MBP-immunization without MSDM administration showed severe EAE development. A marked reduction in inflammation was also observed in the spinal cord, indicating the crucial role of NO in the pathogenesis of EAE in in vivo. In the EAU experiments, a 24 h pre-treatment with MSDM prior to IRBP immunization resulted in significant inhibition of the disease. Furthermore, MSDM administration for 2 1 days completely reduced the incidence and severity of EAU. To investigate whether MSDM could modulate cytokine switching from Th 1 to Th2, culture supernatants of MBP- or IRBP-stimulated inguinal lymphocytes were analyzed. MSDM treatment enhanced IL-10 secretion but decreased IFN-${\gamma}$. IL-4 was undetectable in all groups. In contrast, the MBP-or IRBP-immunized rats without MSDM secreted high concentrations of IFN-${\gamma}$, but low concentrations of IL-10. Conclusion: In conclusion, NO administation suppresses EAE and EAU by modulating the Th1/Th2 balance during inflammatory immune responses. This work further suggests that NO may be useful in the therapeutic control of autoimmune disease.

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Cellular and Molecular Roles of $\beta$ Cell Autoantigens, Macrophages and T Cells in the Pathogenesis of Automimmune Diabetes

  • Yoon, Ji-Won;Jun, Hee-Sook
    • Archives of Pharmacal Research
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    • v.22 no.5
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    • pp.437-447
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    • 1999
  • Type I diabetes, also known as insulin-dependent diabetes mellitus (IDDM) results from the destruction of insulin-producing pancreatic $\beta$ cells by a progressive $\beta$ cell-specific autoimmune process. The pathogenesis of autoimmune IDDM has been extensively studied for the past two decades using animal models such as the non-obese diabetic (NOD) mouse and the Bio-Breeding (BB) rat. However, the initial events that trigger the immune responses leading to the selective destruction of the $\beta$ cells are poorly understood. It is thought that $\beta$ cell auto-antigens are involved in the triggering of $\beta$ cell-specific autoimmunity. Among a dozen putative $\beta$ cell autoantigens, glutamic acid decarboxylase (GAD) has bee proposed as perhaps the strongest candidate in both humans and the NOD mouse. In the NOD mouse, GAD, as compared with other $\beta$ cell autoantigens, provokes the earliest T cell proliferative response. The suppression of GAD expression in the $\beta$ cells results in the prevention of autoimmune diabetes in NOD mice. In addition, the major populations of cells infiltrating the iselts during the early stage of insulitis in BB rats and NOD mice are macrophages and dendritic cells. The inactivation of macrophages in NOD mice results in the prevention of T cell mediated autoimmune diabetes. Macrophages are primary contributors to the creation of the immune environment conducive to the development and activation of $\beta$cell-specific Th1-type CD4+ T cells and CD8+ cytotoxic T cells that cause autoimmune diabetes in NOD mice. CD4+ and CD8+ T cells are both believed to be important for the destruction of $\beta$ cells. These cells, as final effectors, can kill the insulin-producing $\beta$ cells by the induction of apoptosis. In addition, CD8+ cytotoxic T cells release granzyme and cytolysin (perforin), which are also toxic to $\beta$ cells. In this way, macrophages, CD4+ T cells and CD8+ T cells act synergistically to kill the $\beta$ cells in conjunction with $\beta$ cell autoantigens and MHC class I and II antigens, resulting in the onset of autoimmune type I diabetes.

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A Case of Mikulicz's Disease in Parotid Gland (이하선에 발생한 Mikulicz's Disease 1례)

  • Na Seon-Kyu;Park Jun-Young;Park Chan-Hum;Rho Young-Soo
    • Korean Journal of Head & Neck Oncology
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    • v.15 no.2
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    • pp.246-249
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    • 1999
  • Mikulicz's disease is an autoimmune disorder characterized by asymptomatic chronic swelling of the salivary gland or lacrimal gland. It is also called as a benign lymphoepithelial lesion. The clinical manifestations are usually bilateral and symmetric. The diagnosis is confirmed by only histopathologic finding. Microscopically, the lymphoid infiltration and epimyoepithelial island appear as the solid nests surrounded and infiltrated by lymphoid cells. The treatment is symptomatic, but the patients are at an increased risk for the development of malignant lymphoma. So it need a careful observation.

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Single-Cell Genomics for Investigating Pathogenesis of Inflammatory Diseases

  • Seyoung Jung;Jeong Seok Lee
    • Molecules and Cells
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    • v.46 no.2
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    • pp.120-129
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    • 2023
  • Recent technical advances have enabled unbiased transcriptomic and epigenetic analysis of each cell, known as "single-cell analysis". Single-cell analysis has a variety of technical approaches to investigate the state of each cell, including mRNA levels (transcriptome), the immune repertoire (immune repertoire analysis), cell surface proteins (surface proteome analysis), chromatin accessibility (epigenome), and accordance with genome variants (eQTLs; expression quantitative trait loci). As an effective tool for investigating robust immune responses in coronavirus disease 2019 (COVID-19), many researchers performed single-cell analysis to capture the diverse, unbiased immune cell activation and differentiation. Despite challenges elucidating the complicated immune microenvironments of chronic inflammatory diseases using existing experimental methods, it is now possible to capture the simultaneous immune features of different cell types across inflamed tissues using various single-cell tools. In this review, we introduce patient-based and experimental mouse model research utilizing single-cell analyses in the field of chronic inflammatory diseases, as well as multi-organ atlas targeting immune cells.

Graves disease following rabbit antithymocyte globulin treatment of severe aplastic anemia in a Korean child

  • Choi, In Su;Kim, Han Kyul;Han, Dong Kyun;Baek, Hee Jo;Jang, Hae In;Kim, Chan Jong;Kook, Hoon
    • Clinical and Experimental Pediatrics
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    • v.58 no.7
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    • pp.267-269
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    • 2015
  • Antithymocyte globulin (ATG) is used as an immunosuppressive treatment (IST) to deplete clonal suppressor T cells in patients with severe aplastic anemia (SAA). The depletion of suppressor T cells by ATG may affect the activation of B cells, which results in an increased risk for autoimmune conditions. A 12-year-old boy was diagnosed with idiopathic SAA. As he did not have an human leukocyte antigen-matched sibling, he was treated with rabbit ATG (3.5 mg/kg/day for 5 days) and cyclosporine. Five months later, he became transfusion independent. However, 23 months after IST, he complained of mild hand tremors, sweating, weight loss, palpitations, and goiter. Results of thyroid function tests revealed hyperthyroidism (free thyroxine, 3.42 ng/dL; thyroid stimulating hormone [TSH], <0.01 nIU/mL; triiodothyronine, 3.99 ng/mL). Results of tests for autoantibodies were positive for the antimicrosome antibody and TSH-binding inhibitory immunoglobulin, but negative for the antithyroglobulin antibody and antinuclear antibody. He was treated with methimazole, and his symptoms improved. The patient has been disease free for 39 months after IST and 9 months after methimazole treatment. This case report suggests that although rare, rabbit ATG may have implications in the pathogenesis of autoimmune hyperthyroidism. Our findings suggest that thyroid function tests should be incorporated in the routine follow-up of SAA patients treated with ATG.

GRIM-19 Ameliorates Multiple Sclerosis in a Mouse Model of Experimental Autoimmune Encephalomyelitis with Reciprocal Regulation of IFNγ/Th1 and IL-17A/Th17 Cells

  • Jeonghyeon Moon;Seung Hoon Lee;Seon-yeong Lee;Jaeyoon Ryu;Jooyeon Jhun;JeongWon Choi;Gyoung Nyun Kim;Sangho Roh;Sung-Hwan Park;Mi-La Cho
    • IMMUNE NETWORK
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    • v.20 no.5
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    • pp.40.1-40.15
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    • 2020
  • The protein encoded by the Gene Associated with Retinoid-Interferon-Induced Mortality-19 (GRIM-19) is located in the mitochondrial inner membrane and is homologous to the NADH dehydrogenase 1-alpha subcomplex subunit 13 of the electron transport chain. Multiple sclerosis (MS) is a demyelinating disease that damages the brain and spinal cord. Although both the cause and mechanism of MS progression remain unclear, it is accepted that an immune disorder is involved. We explored whether GRIM-19 ameliorated MS by increasing the levels of inflammatory cytokines and immune cells; we used a mouse model of experimental autoimmune encephalomyelitis (EAE) to this end. Six-to-eight-week-old male C57BL/6, IFNγ-knockout (KO), and GRIM-19 transgenic mice were used; EAE was induced in all strains. A GRIM-19 overexpression vector (GRIM19 OVN) was electrophoretically injected intravenously. The levels of Th1 and Th17 cells were measured via flow cytometry, immunofluorescence, and immunohistochemical analysis. IL-17A and IFNγ expression levels were assessed via ELISA and quantitative PCR. IL-17A expression decreased and IFNγ expression increased in EAE mice that received injections of the GRIM-19 OVN. GRIM19 transgenic mice expressed more IFNγ than did wild-type mice; this inhibited EAE development. However, the effect of GRIM-19 overexpression on the EAE of IFNγ-KO mice did not differ from that of the empty vector. GRIM-19 expression was therapeutic for EAE mice, elevating the IFNγ level. GRIM-19 regulated the Th17/Treg cell balance.

Polymyositis After Bone Marrow Transplantation: As an Uncommon Manifestation of Chronic Graft-Versus-Host Disease? or Autoimmune Process? (골수이식 이후의 다발근육염: 만성 이식편대숙주병의 드문 증상인가? 자가면역작용인가?)

  • Choi, Won-Cheol;Jung, Yong-Han;Yang, Yeong-Il;Bae, Jong-Seok
    • Annals of Clinical Neurophysiology
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    • v.13 no.1
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    • pp.58-60
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    • 2011
  • Chronic graft-versus-host disease (GVHD) is a well-known complication of allogeneic bone marrow transplantation (BMT) and has heterogeneous manifestations, with multi-organ involvement. Recently, polymyositis (PM) was reported to be a rare manifestation of chronic GVHD. Here, we report a 30-year-old woman who was diagnosed with PM after allogeneic BMT.