Progressive Multifocal Leukoencephalopathy in Relapsed Ph+ Acute Lymphoblastic Leukemia after Cord Blood Transplantation and Blinatumomab Treatment: A Case Report and Literature Review.

Progressive multifocal leukoencephalopathy (PML) is a rare neurological disease caused by the reactivation of latent John Cunningham polyomavirus. Hematological disorders associated with immunomodulatory monoclonal antibodies and hematopoietic stem cell transplantation (HSCT) are risk factors for PML. Blinatumomab is a novel antileukemic immunomodulatory agent and more effective for relapsed and refractory acute lymphoblastic leukemia (ALL) than conventional chemotherapy.

Assessment of Pazopanib-Related Heart Failure in Patients With Advanced Soft Tissue Sarcoma - A Single Institute Analysis.

Background: Heart failure (HF) is one of the potential adverse events of pazopanib treatment for soft tissue sarcoma (STS), but detailed reports of such HF cases are scarce. This study determined the incidence and risk factors of HF following pazopanib treatment for STS at our Institute and the clinical outcomes.

Methods and results: This study retrospectively analyzed the cases of STS patients treated with pazopanib (n=151) between 2012 and 2020.

Severe pseudomembranous keratoconjunctivitis with deterioration of eyesight induced by immune checkpoint inhibitors.

Immune checkpoint inhibitors (ICIs) play a significant role in therapy for relapsed or refractory cancers due to their excellent efficacy. ICIs, however, frequently induce immune-related adverse events (irAEs) in various tissues and organs, sometimes leading to severe conditions. Thus, early identification and treatment of irAEs are important.

Allogeneic hematopoietic cell transplantation using fludarabine plus myeloablative busulfan and melphalan confers promising survival in high-risk hematopoietic neoplasms: a single-center retrospective analysis.

Objectives: Optimal selection of pretransplant conditioning is crucially vital for improving survival and quality-of-life of patients who receive allogeneic hematopoietic cell transplantation (allo-HCT), particularly in those with high-risk diseases. In this study, we evaluated the efficacy and safety of recently-developed reduced-toxicity myeloablative regimen that combines fludarabine, intravenous busulfan, and melphalan (FBM).

Methods: We conducted a single-center retrospective analysis of 39 patients (23 with myeloid neoplasms and 16 with lymphoid neoplasms), with a median age of 50 (range, 17-68) years, who underwent their first allo-HCT using the FBM regimen.

Differences in the efficacy and safety of eribulin in patients with soft tissue sarcoma by histological subtype and treatment line.

Clinical evidence regarding eribulin treatment for patients with soft tissue sarcoma (STS) is limited to those with L-sarcoma (leiomyosarcoma and liposarcoma) who have completed at least two chemotherapies. Whether histological subtypes and treatment lines affect the efficacy and safety of eribulin for patients with STS has yet to be elucidated. The current study retrospectively reviewed patients with STS receiving eribulin at the Cancer Institute Hospital of JFCR and evaluated the prognostic factors affecting its efficacy and safety by histological diagnoses and treatment lines.

Mycophenolate mofetil as a successful treatment of corticosteroid-resistant immune checkpoint inhibitor-induced hepatitis.

Immune checkpoint inhibitors (ICIs) are now widely used to many malignant diseases, but some patients suffer from immune-related adverse events during or after ICI treatments. The monoclonal antibody infliximab is usually chosen as a salvage treatment to combat corticosteroid-resistant adverse events, but infliximab is not recommended as a response to hepatitis because of the potential risk of liver failure. An alternative treatment option has not been established.

Sequential Analysis of Neutrophil-to-lymphocyte Ratio for Differentiated Thyroid Cancer Patients Treated With Lenvatinib.

Background/aim: Neutrophil-to-lymphocyte ratio (NLR) has been reported to be associated with poor prognosis for radioactive iodine ablation refractory differentiated thyroid cancer (RR-DTC). Little is known whether NLR can be a tumor marker for RR-DTC patients treated with lenvatinib.

Patients And Methods: We retrospectively analyzed RR-DTC patients treated with lenvatinib.

Retrospective Analysis of Trabectedin Therapy for Soft Tissue Sarcoma.

Background/aim: Trabectedin is a synthetic antineoplastic agent approved for advanced soft tissue sarcoma (STS) in Japan. The aim of this study was to evaluate the efficacy and safety of the Japan-approved dose of trabectedin for advanced STS.

Patients And Methods: We retrospectively reviewed 38 patients with advanced STS who received salvage chemotherapy with trabectedin.

Epigenetic Variation between Human Induced Pluripotent Stem Cell Lines Is an Indicator of Differentiation Capacity.

Variation in the differentiation capacity of induced pluripotent stem cells (iPSCs) to specific lineages is a significant concern for their use in clinical applications and disease modeling. To identify factors that affect differentiation capacity, we performed integration analyses between hematopoietic differentiation performance and molecular signatures such as gene expression, DNA methylation, and chromatin status, using 35 human iPSC lines and four ESC lines. Our analyses revealed that hematopoietic commitment of PSCs to hematopoietic precursors correlates with IGF2 expression level, which in turn depends on signaling-dependent chromatin accessibility at mesendodermal genes.

A novel efficient feeder-free culture system for the derivation of human induced pluripotent stem cells.

In order to apply human embryonic stem cells (hESCs) and induced pluripotent stem cells (hiPSCs) to regenerative medicine, the cells should be produced under restricted conditions conforming to GMP guidelines. Since the conventional culture system has some issues that need to be addressed to achieve this goal, we developed a novel culture system. We found that recombinant laminin-511 E8 fragments are useful matrices for maintaining hESCs and hiPSCs when used in combination with a completely xeno-free (Xf) medium, StemFit™.

Clinical value of ¹¹C-methionine PET/CT in patients with plasma cell malignancy: comparison with ¹⁸F-FDG PET/CT.

Purpose: PET/CT using FDG has been widely used for the imaging of various malignant tumours, including plasma cell malignancy (PCM), but (11)C-methionine (MET), as a radiolabelled amino acid tracer, may also be useful because PCM is able to activate protein synthesis. The purpose of this study was to evaluate the clinical value of PET/CT imaging using MET in PCM, including multiple myeloma, compared with that of FDG PET/CT.

Methods: The study group comprised 20 patients with histologically proven PCM who underwent FDG PET/CT and MET PET/CT scans before (n = 6) or after (n = 14) treatment.

[Refractory acquired hemophilia A successfully treated with CVP].

A 44-year-old woman was referred to our hospital for massive subcutaneous and intramuscular hemorrhage. Prolonged APTT, low factor VIII activity and factor VIII inhibitor with high titer (30 BU/ml) were observed, confirming the diagnosis of acquired factor VIII inhibitor. Although treated with methylprednisolone, she relapsed after a month.

[Transfusion-related acute lung injury with anti-leukocyte antibodies identified both in patient's serum and in red cell concentrate].

We report a fatal case of transfusion-related acute lung injury (TRALI) with anti-leukocyte antibodies detected both in the patient's serum and in the causative red cell concentrate (RC-M.A.P).