Publications by authors named "Kana Bando"

Mucormycosis is a severe mold infection primarily affecting immunocompromised patients. Neutropenia, steroid use, hyperglycemia, and diabetes are recognized as significant risk factors. Cunninghamella species are rare pathogenic fungi associated with high mortality rates and multidrug resistance.

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Epcoritamab, a bispecific T-cell engager (BiTE) antibody targeting CD3 and CD20, has shown significant efficacy in treating refractory diffuse large B-cell lymphoma (DLBCL). However, its use can lead to severe side effects, such as tumor flare. Here, we report the case of an 84-year-old male with relapsed DLBCL who developed fatal unilateral pleural effusion following Epcoritamab treatment.

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Article Synopsis
  • Primary leptomeningeal malignant lymphoma (PLML) is a rare form of primary central nervous system lymphoma (PCNSL) with no established treatment due to its uniqueness.* -
  • A case study of a 46-year-old male with PLML showed complete remission after treatment with a combination of chemotherapy (R-MPV and intrathecal agents) and autologous stem-cell transplantation (ASCT) using a thiotepa regimen.* -
  • A literature review indicated that ASCT has been successfully used in three reported cases of PLML, suggesting it may be an effective consolidation therapy, but more research is necessary to develop standardized treatment guidelines.*
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Introduction: Many mouse models for autoimmune diseases also have lesions in non-target organs, which may make it difficult to determine whether the target organ lesion is primary or secondary. Hyposalivation has conventionally been studied using genetically modified mouse models for Sjogren's syndrome as well as spontaneous autoimmune mice with systemic lesions, none of which has salivary gland-specific injury.

Methods: In this study, we established a salivary gland-specific injury mouse model using the toxin receptor-mediated cell knockout (TRECK) system by gene modification with the transgene composed of the 5' untranslated region of human salivary mucin gene MUC7 (highly expressed specifically in human salivary gland) inserted at the upstream of hHB-EGF (diphtheria toxin receptor) in the TRECK vector.

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Article Synopsis
  • * In a reported case, plasma cells appeared in a patient's blood during treatment, but they were deemed reactive and disappeared on their own, leading to successful hematopoietic recovery.
  • * This case is significant as it is the first documented instance of reactive plasmacytosis occurring during immunosuppressive therapy for aplastic anemia, suggesting that it could indicate a positive treatment response.
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Although alectinib is effective for relapsed or refractory ALK-positive anaplastic large cell lymphoma (ALCL) and has a favorable safety profile, its role as a bridging therapy for allogeneic hematopoietic stem cell transplantation (allo-HSCT) and the role of allo-HSCT itself in this setting are unknown. A 35-year-old man with ALK-positive ALCL experienced relapse after first-line therapy with CHOP. Brentuximab vedotin led to partial response and high-dose chemotherapy combined with autologous HSCT was performed.

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Light chain proximal tubulopathy (LCPT) is a rare type of monoclonal gammopathy of renal significance. Clinicians should consider LCPT in the differential diagnosis of patients with renal or proximal tubular dysfunction with monoclonal gammopathy. They should confirm diagnosis by renal biopsy and initiate chemotherapy before disease progression.

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Article Synopsis
  • A 43-year-old man with oral bleeding was diagnosed with acute promyelocytic leukemia (APL) and was treated with a combination of chemotherapy and interventions for disseminated intravascular coagulation (DIC).
  • After two weeks of treatment, he was found to have cerebral hemorrhagic lesions on an MRI, although he had no neurological symptoms during the process.
  • Despite the initial hemorrhage, the patient's condition improved with platelet transfusions, and he achieved hematological remission without further issues during later treatment phases, highlighting the potential for asymptomatic cerebral bleeding in APL patients.
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Aging presents fundamental health concerns worldwide; however, mechanisms underlying how aging is regulated are not fully understood. Here, we show that cartilage regulates aging by controlling phosphate metabolism via ectonucleotide pyrophosphatase/phosphodiesterase 1 (Enpp1). We newly established an Enpp1 reporter mouse, in which an EGFP-luciferase sequence was knocked-in at the Enpp1 gene start codon (Enpp1/EGFP-luciferase), enabling detection of Enpp1 expression in cartilage tissues of resultant mice.

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Adipose tissue is central to regulation of energy homeostasis. Adaptive thermogenesis, which relies on mitochondrial oxidative phosphorylation (Ox-Phos), dissipates energy to counteract obesity. On the other hand, chronic inflammation in adipose tissue is linked to type 2 diabetes and obesity.

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We here present a 33-year-old woman who was referred to our hospital with a complaint of back pain and was found to have elevated IgG and hypercalcemia, as well as osteolytic lesions of pelvis and spines. F-FDG-PET/CT scan revealed numerous uptakes in the bones. An examination of the bone marrow revealed increased plasma cells (10.

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Uncoupling protein 2 (UCP2), a mitochondrial protein, is known to be upregulated in pancreatic islets of patients with type 2 diabetes (T2DM); however, the pathological significance of this increase in UCP2 expression is unclear. In this study, we highlight the molecular link between the increase in UCP2 expression in β-cells and β-cell failure by using genetically engineered mice and human islets. β-cell-specific UCP2-overexpressing transgenic mice (βUCP2Tg) exhibited glucose intolerance and a reduction in insulin secretion.

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Pulmonary fibrosis (PF) is a progressive fibrotic disease with poor prognosis and suboptimal therapeutic options. Although macrophages have been implicated in PF, the role of macrophage subsets, particularly interstitial macrophages (IMs), remains unknown. We performed a time-series single-cell RNA sequencing analysis of the silica-induced mouse PF model.

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Runx2 is an essential transcription factor for bone formation. Although osteocalcin, osteopontin, and bone sialoprotein are well-known Runx2-regulated bone-specific genes, the skeletal phenotypes of knockout (KO) mice for these genes are marginal compared with those of Runx2 KO mice. These inconsistencies suggest that unknown Runx2-regulated genes play important roles in bone formation.

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Article Synopsis
  • - The study focuses on how leftward fluid flow in the mouse embryo's node influences the breakdown of Dand5 mRNA, crucial for establishing left-right asymmetry during development.
  • - It was found that the first 200 nucleotides of Dand5's 3' untranslated region (3'-UTR) are essential for its left-sided degradation, responding to factors like Ca ions, the cation channel Pkd2, and the RNA-binding protein Bicc1.
  • - Bicc1 interacts with specific RNA sequences and works with the Cnot3 component of the Ccr4-Not deadenylase complex to facilitate left-sided Dand5 mRNA decay when prompted by fluid flow.
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ADP-ribosylation factor (Arf) family consisting of six family members, Arf1-Arf6, belongs to Ras superfamily and orchestrates vesicle trafficking under the control of guanine nucleotide exchange factors (GEFs) and GTPase-activating proteins. It is well established that brefeldin A, a potent inhibitor of ArfGEFs, blocks cytokine secretion from activated T cells, suggesting that the Arf pathway plays important roles in T cell functions. In this study, because Arf1 and Arf6 are the best-characterized members among Arf family, we established T lineage-specific Arf1-deficient, Arf6-deficient, and Arf1/6 double-deficient mice to understand physiological roles of the Arf pathway in the immune system.

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Neuropathic pain resulting from peripheral neuronal damage is largely resistant to treatment with currently available analgesic drugs. Recently, ATP, lysophosphatidic acid, and platelet-activating factor (PAF) have been reported to play important inductive roles in neuropathic pain. In the present study, we found that pain-like behaviors resulting from partial sciatic nerve ligation (PSL) were largely attenuated by deficiency of lysophosphatidylcholine acyltransferase (LPCAT)2, which is one of the PAF biosynthetic enzymes.

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Intracranial aneurysms are common but are generally untreated, and their rupture can lead to subarachnoid hemorrhage. Because of the poor prognosis associated with subarachnoid hemorrhage, preventing the progression of intracranial aneurysms is critically important. Intracranial aneurysms are caused by chronic inflammation of the arterial wall due to macrophage infiltration triggered by monocyte chemoattractant protein-1 (MCP-1), macrophage activation mediated by the transcription factor nuclear factor κB (NF-κB), and inflammatory signaling involving prostaglandin E (PGE) and prostaglandin E receptor subtype 2 (EP2).

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Diacylglycerol kinase (DGK) is a lipid-metabolizing enzyme that phosphorylates diacylglycerol to produce phosphatidic acid. Previously, we reported that the δ isozyme of DGK was abundantly expressed in the mouse brain. However, the functions of DGKδ in the brain are still unclear.

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Atopic dermatitis (AD) is a chronic inflammatory skin disease in humans. It was recently noted that the characteristics of epidermal barrier functions critically influence the pathological features of AD. Evidence suggests that claudin-1 (CLDN1), a major component of tight junctions (TJs) in the epidermis, plays a key role in human AD, but the mechanism underlying this role is poorly understood.

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The η isozyme of diacylglycerol kinase (DGK) is highly expressed in the hippocampus and Purkinje cells in the central nervous system. Recently, several genome-wide association studies have implicated DGKη in the etiology of bipolar disorder (BPD). However, it is still unknown whether DGKη is indeed related to BPD.

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Naive lymphocytes continuously migrate from the blood into lymph nodes (LNs) via high endothelial venules (HEVs). To extravasate from the HEVs, lymphocytes undergo multiple adhesion steps, including tethering, rolling, firm adhesion and transmigration. We previously showed that autotaxin (ATX), an enzyme that generates lysophosphatidic acid (LPA), is highly expressed in HEVs, and that the ATX/LPA axis plays an important role in the lymphocyte transmigration across HEVs.

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