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1.
Am J Surg Pathol ; 48(6): 652-661, 2024 Jun 01.
Article in English | MEDLINE | ID: mdl-38584451

ABSTRACT

Very well-differentiated adenocarcinoma of intestinal type is a distinct subtype of gastric cancer characterized by anastomosing glands with a hand-in-hand pattern and low-grade cytologic atypia resembling intestinal metaplasia. This is a slow-growing neoplasm with an indolent clinical course; however, a subset demonstrates transformation into adenocarcinoma with higher-grade histology, typically diffuse-type carcinoma, and behaves aggressively. This study aimed to better characterize the genomic and pathologic features, with a focus on factors associated with diffuse-type transformation. A total of 58 cases with (n=31) and without (n=27) diffuse-type transformation were analyzed for molecular and pathologic features. First, comprehensive deep DNA sequencing was conducted in 18 cases (discovery cohort), followed by a digital droplet polymerase chain reaction of hot spot RHOA mutations in 40 cases (validation cohort). In total, RHOA mutations were the most common alteration (34%), followed by loss of ARID1A (12%), p53 alterations (10%), and CLDN18 :: ARHGAP26/6 fusions (3.4%). FGFR2 amplification was identified in an advanced case with a p53 alteration. Altered p53 expression was recognized only in higher-grade components and was significantly associated with advanced disease ( P =0.0015) and diffuse-type transformation ( P =0.026). A mixed mucin phenotype was also strongly correlated with advanced disease ( P <0.001) and diffuse-type transformation ( P <0.001). Decreased E-cadherin expression was frequently observed (74%) in poorly cohesive components. This study demonstrated that a subset of RHOA -mutant diffuse-type gastric cancers develops through the transformation of very well-differentiated adenocarcinoma of intestinal type. Our observations suggest a mixed mucin phenotype as a risk factor and alterations in p53 and E-cadherin as drivers of diffuse-type transformation.


Subject(s)
Adenocarcinoma , Biomarkers, Tumor , Cell Transformation, Neoplastic , Mutation , Stomach Neoplasms , Humans , Stomach Neoplasms/genetics , Stomach Neoplasms/pathology , Adenocarcinoma/genetics , Adenocarcinoma/pathology , Adenocarcinoma/chemistry , Male , Female , Middle Aged , Aged , Cell Transformation, Neoplastic/genetics , Cell Transformation, Neoplastic/pathology , Biomarkers, Tumor/genetics , Biomarkers, Tumor/analysis , rhoA GTP-Binding Protein/genetics , Cell Differentiation , Adult , Phenotype , Aged, 80 and over , Tumor Suppressor Protein p53/genetics , Genetic Predisposition to Disease , DNA Mutational Analysis , High-Throughput Nucleotide Sequencing
2.
Cytotherapy ; 26(6): 592-598, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38466265

ABSTRACT

BACKGROUND AIMS: Haploidentical hematopoietic stem cell transplantation (haplo-HCT) is an appropriate option when an HLA-matched related or unrelated donor is not available. Haplo-HCT using post-transplant cyclophosphamide (PTCy) is being increasingly performed worldwide due to its effective suppression of GVHD and its safety. METHODS: We conducted a large nationwide cohort study to retrospectively analyze 366 patients with acute myeloid leukemia undergoing haplo-HCT with PTCy between 2010 and 2019 and to identify prognostic factors. RESULTS: A multivariate Cox analysis revealed that an older recipient age (≥60 years), a male donor to a male recipient, a cytomegalovirus IgG-negative donor to a cytomegalovirus IgG-positive recipient, a poor cytogenetic risk, a noncomplete remission status at the time of transplantation, and a history of HCT were independently associated with worse overall survival (OS). Based on each hazard ratio, these factors were scored (1-2 points) and stratified by their total score into three groups: favorable (0-1 points), intermediate (2-3 points), and poor (4 points or more) groups, and 2-year OS rates were 79.9%, 49.2%, and 25.1%, respectively (P < 0.001). CONCLUSIONS: The present study revealed significant prognostic factors in haplo-HCT with PTCy, and a scoring system based on these factors may be used to predict outcomes.


Subject(s)
Cyclophosphamide , Hematopoietic Stem Cell Transplantation , Leukemia, Myeloid, Acute , Transplantation, Haploidentical , Humans , Male , Leukemia, Myeloid, Acute/therapy , Leukemia, Myeloid, Acute/mortality , Female , Middle Aged , Cyclophosphamide/therapeutic use , Hematopoietic Stem Cell Transplantation/methods , Transplantation, Haploidentical/methods , Adult , Prognosis , Retrospective Studies , Aged , Adolescent , Graft vs Host Disease/etiology , Young Adult
3.
Biochem Biophys Res Commun ; 701: 149583, 2024 Mar 15.
Article in English | MEDLINE | ID: mdl-38330731

ABSTRACT

Endochondral ossification is a developmental process in the skeletal system and bone marrow of vertebrates. During endochondral ossification, primitive cartilaginous anlages derived from mesenchymal stem cells (MSCs) undergo vascular invasion and ossification. In vitro regeneration of endochondral ossification is beneficial for research on the skeletal system and bone marrow development as well as their clinical aspects. However, to achieve the regeneration of endochondral ossification, a stem cell-based artificial cartilage (cartilage organoid, Cart-Org) that possesses an endochondral ossification phenotype is required. Here, we modified a conventional 3D culture method to create stem cell-based Cart-Org by mixing it with a basement membrane extract (BME) and further characterized its chondrogenic and ossification properties. BME enlarged and matured the bone marrow MSC-based Cart-Orgs without any shape abnormalities. Histological analysis using Alcian blue staining showed that the production of cartilaginous extracellular matrices was enhanced in Cart-Org treated with BME. Transcriptome analysis using RNA sequencing revealed that BME altered the gene expression pattern of Cart-Org to a dominant chondrogenic state. BME triggered the activation of the SMAD pathway and inhibition of the NK-κB pathway, which resulted in the upregulation of SOX9, COL2A1, and ACAN in Cart-Org. BME also facilitated the upregulation of genes associated with hypertrophic chondrocytes (IHH, PTH1R, and COL10A1) and ossification (SP7, ALPL, and MMP13). Our findings indicate that BME promotes cartilaginous maturation and further ossification of bone marrow MSC-based Cart-Org, suggesting that Cart-Org treated with BME possesses the phenotype of endochondral ossification.


Subject(s)
Mesenchymal Stem Cells , Osteogenesis , Animals , Osteogenesis/genetics , Bone Marrow , Basement Membrane , Cartilage/metabolism , Chondrocytes/metabolism , Phenotype , Chondrogenesis/genetics , Organoids , Cell Differentiation
4.
Transplant Cell Ther ; 30(2): 215.e1-215.e18, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38081415

ABSTRACT

Acute myeloid leukemia (AML) is the most common indication for allogeneic hematopoietic cell transplantation (HCT). The increased availability of alternative donor sources has broadened donor types for older patients without HLA-matched sibling donors (MSD). It is uncertain if an MSD should be the first option for allogeneic HCT in patients with AML over 50 years of age. The objective of this study was to compare survival and other post-transplant outcomes between MSDs, 8/8 allele-matched unrelated donors (MUDs), 7/8 allele-MUDs, unrelated cord blood (UCB), and haploidentical donors for patients with AML over 50 years of age. We conducted a retrospective study to compare outcomes in 5704 patients with AML over 50 years of age and receiving allogeneic HCT between 2013 and 2021, using either MSD, 8/8 allele-MUD, 7/8 allele-MUD, UCB, or haploidentical donors in Japan. Complete remission (CR) and nonremission at HCT were analyzed separately for all analyses. In total, 3041 patients were CR, and 2663 patients were nonremission at the time of HCT. In multivariate analysis, donor type did not determine overall survival, irrespective of disease status at HCT. Leukemia-free survival (LFS) was significantly better for 8/8 allele-MUD (hazard ratio [HR], 0.77; 95% confidence interval [CI], 0.64 to 0.93; P = .005) and UCB (HR, 0.76; 95% CI, 0.65 to 0.88; P < .001), but not for 7/8 allele-MUD (HR, 0.97; 95% CI, 0.79 to 1.19; P = .794), and haploidentical donor (HR, 0.86; 95% CI, 0.70 to 1.05; P = .146) compared to the MSD group in nonremission status. However, donor type did not determine LFS among CR status. Relapse rates were significantly lower for 8/8 allele-MUD and UCB, whereas nonrelapse mortality was higher for UCB compared to the MSD group among both CR and nonremission status. Our registry-based study demonstrated that MSDs do not lead to superior survival compared to alternative donors for patients with AML over 50 years of age. Furthermore, 8/8 allele-MUDs and UCB provide better LFS compared with MSDs during nonremission status. Therefore, MSD is not necessarily the best donor option for allogeneic HCT in this population.


Subject(s)
Graft vs Host Disease , Leukemia, Myeloid, Acute , Humans , Middle Aged , Unrelated Donors , Siblings , Retrospective Studies , Alleles , Fetal Blood , Leukemia, Myeloid, Acute/genetics , Leukemia, Myeloid, Acute/therapy , Transplantation, Homologous
5.
Leukemia ; 38(3): 513-520, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38129514

ABSTRACT

Allogeneic hematopoietic cell transplantation (HCT) is the last option for long-term survival for patients with chemotherapy-refractory acute myeloid leukemia (AML). By using the Japanese nationwide registry data, we analyzed 6927 adults with AML having undergone first allogeneic HCT while not in complete remission (CR) between 2001 and 2020. The 5-year overall survival (OS), relapse, and non-relapse mortality (NRM) rates were 23%, 53%, and 27%, respectively. Multivariate analysis identified several factors predictive of OS mainly through their effects on relapse (cytogenetics, percentage of blasts in the peripheral blood, and transplantation year) and NRM (age, sex, and performance status). As regards disease status, relapsed disease was associated with a higher risk of overall mortality than primary induction failure (PIF). The shorter duration of the first CR increased the risks of relapse and overall mortality for the relapsed group, and the longer time from diagnosis to transplantation did so for the PIF group. Our experience compiled over the past two decades demonstrated that >20% of patients still enjoy long-term survival with allogeneic HCT performed during non-CR and identified those less likely to benefit from allogeneic HCT. Future efforts are needed to reduce the risk of posttransplant relapse in these patients.


Subject(s)
Hematopoietic Stem Cell Transplantation , Leukemia, Myeloid, Acute , Adult , Humans , Recurrence , Transplantation, Homologous , Neoplasm Recurrence, Local , Leukemia, Myeloid, Acute/therapy , Retrospective Studies , Transplantation Conditioning , Remission Induction
6.
Rinsho Ketsueki ; 64(7): 596-607, 2023.
Article in Japanese | MEDLINE | ID: mdl-37544718

ABSTRACT

OBJECTIVE: We sought to assess the safety and feasibility of outpatient management in Japanese patients with relapsed/refractory lymphoma who had received pegfilgrastim after salvage therapy. METHOD: This was a single-center, open-label, non-randomized, prospective interventional analysis. Patients were completely hospitalized for cycle 1 of chemotherapy. Those who met the outpatient management criteria (outpatient group) were subsequently admitted to the hospital for chemotherapy cycles but were discharged after each cycle was completed. The inpatient group was discharged when white blood cell and platelet counts improved. Pegfilgrastim was given as a single 3.6 mg dose by subcutaneous injection 2 days after the completion of each chemotherapy cycle. RESULTS: The percentage of outpatient management days (primary endpoint) ranged from 68.2%-75.0% in the outpatient group and 28.6%-50.0% in the inpatient group. According to the secondary endpoints, there were no hospitalizations due to febrile neutropenia during the outpatient period. There were no major safety concerns raised. CONCLUSIONS: For patients with relapsed/refractory lymphoma, pegfilgrastim administration after salvage therapy in an outpatient setting was feasible and safe for those who satisfied the outpatient management criteria.


Subject(s)
Granulocyte Colony-Stimulating Factor , Lymphoma , Humans , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Feasibility Studies , Lymphoma/drug therapy , Outpatients , Prospective Studies , Salvage Therapy
7.
Cancer Res Commun ; 3(7): 1277-1285, 2023 07.
Article in English | MEDLINE | ID: mdl-37476074

ABSTRACT

Perioperative immune checkpoint inhibitors have been shown to improve prognosis in early-stage lung cancer. However, no biomarkers are known to indicate the requirement for treatment. This study aimed to identify T-cell clusters responsible for antitumor immunity in patients with early-stage lung cancer. Preoperative blood samples from 50 consecutive patients with lung cancer who were diagnosed as operable and underwent complete resection were analyzed by mass cytometry. Patients were divided into two groups: no recurrence at a minimum observation period of 851 days (median observation period: 1,031.5 days) and recurrence by the last observation date. Mass cytometry and single-cell RNA sequencing analysis of lymph nodes (LN) and tumor-infiltrating T cells were also performed. CCR4-CCR6+ Th7R showed discriminative ability between recurrence and non-recurrence patients with lung cancer. Patients with more than 3.04% Th7R showed significantly favorable disease-free survival. Th7R was a major component of CD4+ T cells in tumor microenvironments and LNs adjacent to lung cancer tissues and was the only cluster that decreased in peripheral blood after the removal of cancer tissues, suggesting that Th7R was primed and proliferated in tumor-draining LNs in the presence of cancer tissues. Th7R had the kinetics that antitumor T cells should have, as indicated by the cancer immunity cycle; thus, peripheral blood Th7R could represent the potency of tumor immunity by reflecting priming and proliferation in tumor-draining LNs and Th7R in the tumor microenvironment. Prediction using peripheral Th7R before surgery could allow the selection of patients who require perioperative drug therapy and optimize therapeutic interventions with clinical implications. Significance: Peripheral Th7R, a Th1-like CD4+ T-cell cluster reflecting priming status in draining LNs and immune status in the tumor microenvironment, predicts disease-free survival after complete resection and has significant clinical relevance in selecting appropriate therapeutic interventions in patients with early-stage lung cancer.


Subject(s)
Lung Neoplasms , Humans , Disease-Free Survival , Lung Neoplasms/surgery , CD8-Positive T-Lymphocytes/pathology , Prognosis , CD4-Positive T-Lymphocytes/pathology , Tumor Microenvironment
9.
Cancer Sci ; 114(8): 3352-3363, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37189003

ABSTRACT

Large-scale genomic sequencing of colorectal cancers has been reported mainly for Western populations. Differences by stage and ethnicity in the genomic landscape and their prognostic impact remain poorly understood. We investigated 534 Japanese stage III colorectal cancer samples from the Phase III trial, JCOG0910. Targeted-capture sequencing of 171 potentially colorectal cancer-associated genes was performed, and somatic single-nucleotide variants and insertion-deletions were determined. Hypermutated tumors were defined as tumors with MSIsensor score >7 and ultra-mutated tumors with POLE mutations. Genes with alterations associated with relapse-free survival were analyzed using multivariable Cox regression models. In all patients (184 right-sided, 350 left-sided), mutation frequencies were TP53, 75.3%; APC, 75.1%; KRAS, 43.6%; PIK3CA, 19.7%; FBXW7, 18.5%; SOX9, 11.8%; COL6A3, 8.2%; NOTCH3, 4.5%; NRAS, 4.1%; and RNF43, 3.7%. Thirty-one tumors were hypermutated (5.8%; 14.1% right-sided, 1.4% left-sided). Modest associations were observed: poorer relapse-free survival was seen with mutant KRAS (hazard ratio 1.66; p = 0.011) and mutant RNF43 (2.17; p = 0.055), whereas better relapse-free survival was seen with mutant COL6A3 (0.35; p = 0.040) and mutant NOTCH3 (0.18; p = 0.093). Relapse-free survival tended to be better for hypermutated tumors (0.53; p = 0.229). In conclusion, the overall spectrum of mutations in our Japanese stage III colorectal cancer cohort was similar to that in Western populations, but the frequencies of mutation for TP53, SOX9, and FBXW7 were higher, and the proportion of hypermutated tumors was lower. Multiple gene mutations appeared to impact relapse-free survival, suggesting that tumor genomic profiling can support precision medicine for colorectal cancer.


Subject(s)
Colorectal Neoplasms , Proto-Oncogene Proteins p21(ras) , Humans , Prognosis , F-Box-WD Repeat-Containing Protein 7/genetics , Proto-Oncogene Proteins p21(ras)/genetics , Neoplasm Recurrence, Local , Colorectal Neoplasms/pathology , Mutation , Genomics
10.
Ann Hematol ; 102(7): 1645-1656, 2023 Jul.
Article in English | MEDLINE | ID: mdl-37171596

ABSTRACT

Prednisolone, used as a standard initial treatment for immune thrombocytopenia (ITP), is an important risk factor for osteoporosis. Recently, we found that prescription of bisphosphonate during initial loading of prednisolone may prevent reduction in bone mineral density and development of glucocorticoid-induced osteoporosis (GIO) in older patients with ITP receiving prolonged steroid therapy. In this review, I describe the treatment options for older patients with ITP, and present the best practices for screening, evaluating, and diagnosing ITP. I also summarize the literature from 2017 to 2022 on the treatment options for ITP, including discussions on the contraindications and side effects, with an emphasis on GIO, and the relative merits of bisphosphonates as a co-treatment for prevention of GIO. Finally, I present a perspective and an expert recommendation on how older patients with ITP would best be served in the future.


Subject(s)
Bone Density Conservation Agents , Osteoporosis , Purpura, Thrombocytopenic, Idiopathic , Humans , Aged , Diphosphonates/adverse effects , Glucocorticoids/therapeutic use , Purpura, Thrombocytopenic, Idiopathic/drug therapy , Osteoporosis/drug therapy , Bone Density Conservation Agents/adverse effects , Bone Density , Prednisolone/adverse effects
11.
Leukemia ; 37(9): 1895-1907, 2023 09.
Article in English | MEDLINE | ID: mdl-37198323

ABSTRACT

UTX/KDM6A, a histone H3K27 demethylase and a key component of the COMPASS complex, is frequently lost or mutated in cancer; however, its tumor suppressor function remains largely uncharacterized in multiple myeloma (MM). Here, we show that the conditional deletion of the X-linked Utx in germinal center (GC) derived cells collaborates with the activating BrafV600E mutation and promotes induction of lethal GC/post-GC B cell malignancies with MM-like plasma cell neoplasms being the most frequent. Mice that developed MM-like neoplasms showed expansion of clonal plasma cells in the bone marrow and extramedullary organs, serum M proteins, and anemia. Add-back of either wild-type UTX or a series of mutants revealed that cIDR domain, that forms phase-separated liquid condensates, is largely responsible for the catalytic activity-independent tumor suppressor function of UTX in MM cells. Utx loss in concert with BrafV600E only slightly induced MM-like profiles of transcriptome, chromatin accessibility, and H3K27 acetylation, however, it allowed plasma cells to gradually undergo full transformation through activation of transcriptional networks specific to MM that induce high levels of Myc expression. Our results reveal a tumor suppressor function of UTX in MM and implicate its insufficiency in the transcriptional reprogramming of plasma cells in the pathogenesis of MM.


Subject(s)
Multiple Myeloma , Animals , Mice , B-Lymphocytes/metabolism , Genes, Tumor Suppressor , Germinal Center/metabolism , Histone Demethylases/genetics , Histone Demethylases/metabolism , Multiple Myeloma/genetics , Proto-Oncogene Proteins B-raf/genetics
12.
Ann Hematol ; 102(6): 1549-1559, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37126115

ABSTRACT

Unrelated donor bone marrow transplantation (UR-BMT), unrelated donor cord blood stem cell transplantation (UR-CBT), and haploidentical peripheral blood stem cell transplantation (Haplo-PBSCT) are the main alternative stem cell sources for allogeneic hematopoietic cell transplantation (HCT) in Japan. The present study aimed to identify factors associated with the outcomes of UR-BMT, UR-CBT, and Haplo-PBSCT in older patients with acute myeloid leukemia (AML) and intermediate- or poor-risk cytogenetics to improve the clinical efficacy and safety of allogeneic HCT. We retrospectively analyzed data for 448 AML patients aged > 65 years who received UR-BMT (n = 102), UR-CBT (n = 250), or Haplo-PBSCT (n = 96) between 2014 and 2020. Overall survival (OS) in the UR-BMT group was superior (P = 0.033) to that in the other groups. However, all patients without complete remission (non-CR) who had Karnofsky performance status (KPS) < 80 at HCT and poor-risk cytogenetics died within 1 year after HCT. Multivariate Cox regression analysis identified KPS <80 at HCT and poor-risk cytogenetics as independent predictors of worse OS in non-CR patients. KPS < 80 may be an alternative indicator for non-CR AML patients with poor-risk cytogenetics during the selection of HCT, alternative treatments, or best supportive therapy, and the optimal KPS is important for the success of HCT.


Subject(s)
Graft vs Host Disease , Hematopoietic Stem Cell Transplantation , Leukemia, Myeloid, Acute , Humans , Aged , Retrospective Studies , Leukemia, Myeloid, Acute/genetics , Leukemia, Myeloid, Acute/therapy , Bone Marrow Transplantation , Cytogenetic Analysis , Transplantation Conditioning
13.
Int J Hematol ; 118(1): 47-53, 2023 Jul.
Article in English | MEDLINE | ID: mdl-37058247

ABSTRACT

Myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis (MDS/MPN-RS-T) is a rare disease, which presents with features of myelodysplastic syndromes with ring sideroblasts and essential thrombocythemia, as well as anemia and marked thrombocytosis. SF3B1 and JAK2 mutations are often found in patients, and are associated with their specific clinical features. This study was a retrospective analysis of 34 Japanese patients with MDS/MPN-RS-T. Median age at diagnosis was 77 (range, 51-88) years, and patients had anemia (median hemoglobin: 9.0 g/dL) and thrombocytosis (median platelet count: 642 × 109/L). Median overall survival was 70 (95% confidence interval: 68-not applicable) months during the median follow-up period of 26 (range: 0-91) months. A JAK2V617F mutation was detected in 46.2% (n = 12) of analyzed patients (n = 26), while an SF3B1 mutation was detected in 87.5% (n = 7) of analyzed patients (n = 8). Like those with myelodysplastic syndromes or myeloproliferative neoplasms, patients often received erythropoiesis-stimulating agents and aspirin to improve anemia and prevent thrombosis. This study, which was the largest to describe the real-world characteristics of Japanese patients with MDS/MPN-RS-T, showed that the patients had similar characteristics to those in western countries.


Subject(s)
Anemia, Sideroblastic , Myelodysplastic Syndromes , Myelodysplastic-Myeloproliferative Diseases , Neoplasms , Thrombocytosis , Humans , Anemia, Sideroblastic/genetics , Retrospective Studies , East Asian People , Myelodysplastic Syndromes/genetics , Myelodysplastic-Myeloproliferative Diseases/genetics , Thrombocytosis/genetics , Neoplasms/complications , Mutation , RNA Splicing Factors/genetics
14.
Hematol Rep ; 15(1): 180-187, 2023 Mar 06.
Article in English | MEDLINE | ID: mdl-36975732

ABSTRACT

Although daprodustat, a hypoxia-inducible factor prolyl hydroxylase inhibitor, and dapagliflozin, a sodium-glucose cotransporter 2 inhibitor, have been approved for the treatment of renal anemia in Japan, their efficacy and safety for patients aged 80 years or older with low-risk myelodysplastic syndrome (MDS)-related anemia have not been demonstrated. Our case series comprised two men and one woman aged >80 years with low-risk MDS-related anemia and diabetic mellitus (DM)-related chronic kidney disease who were dependent on red blood cell transfusions and in whom erythropoiesis-stimulating agents had been insufficient. All three patients received daprodustat and additional dapagliflozin achieved red blood cell transfusion independence and were followed up for >6 months. Daily oral daprodustat was well tolerated. There were no fatalities or progression to acute myeloid leukemia during the >6-month follow-up after daprodustat initiation. On the basis of these outcomes, we consider 24 mg of daprodustat combined with 10 mg of dapagliflozin daily an effective form of treatment for low-risk MDS-related anemia. Further studies are required to clarify the synergistic effects of daprodustat and dapagliflozin, which correct chronic kidney disease-related anemia by promoting endogenous erythropoietin production and normalizing iron metabolism to manage low-risk MDS in the long term.

15.
Blood Adv ; 7(12): 2699-2708, 2023 06 27.
Article in English | MEDLINE | ID: mdl-36661335

ABSTRACT

Cytomegalovirus reactivation (CMVR) after allogeneic hematopoietic cell transplantation (HCT) is a frequent complication related to survival outcomes; however, its impact on relapse remains unclear, especially in acute lymphoblastic leukemia (ALL). In this nationwide retrospective study, we included patients with acute myeloid leukemia (AML) and ALL in the first or second complete remission who underwent their first HCT using a pre-emptive strategy for CMVR. Because 90% of cases with CMVR had occurred by day 64 and 90% of cases with grades 2 to 4 acute graft-versus-host disease (GVHD) had occurred by day 58, a landmark point was set at day 65. In landmark analyses, 3793 patients with AML and 2213 patients with ALL who survived without relapse for at least 65 days were analyzed. Multivariate analyses showed that CMVR was associated with a lower incidence of relapse in both AML (hazard ratio [HR], 0.81; 95% confidence interval [CI], 0.69-0.95; P = .009) and ALL (HR, 0.81; 95% CI, 0.66-0.99; P = .045). These findings were confirmed when CMVR was used as the time-dependent covariate. Moreover, our study suggests that the protective effect of CMVR on relapse was independent of acute GVHD. A post-hoc subgroup analysis of combined AML and ALL showed that CMVR had a mild antileukemia effect without effect modification, in contrast to the impact of CMVR on NRM. Our findings may provide important implications for strategies used for CMV prophylaxis after HCT.


Subject(s)
Cytomegalovirus Infections , Graft vs Host Disease , Hematopoietic Stem Cell Transplantation , Leukemia, Myeloid, Acute , Precursor Cell Lymphoblastic Leukemia-Lymphoma , Humans , Retrospective Studies , Transplantation, Homologous , Hematopoietic Stem Cell Transplantation/adverse effects , Recurrence , Precursor Cell Lymphoblastic Leukemia-Lymphoma/complications , Precursor Cell Lymphoblastic Leukemia-Lymphoma/therapy , Chronic Disease , Graft vs Host Disease/prevention & control , Graft vs Host Disease/complications , Cytomegalovirus Infections/etiology , Cytomegalovirus Infections/prevention & control
16.
Mod Rheumatol Case Rep ; 7(2): 448-452, 2023 06 19.
Article in English | MEDLINE | ID: mdl-36445313

ABSTRACT

A 17-year-old woman was referred to our department with fever, general malaise, and weight loss. She was diagnosed with Takayasu arteritis (TAK) and Crohn's disease (CD) following positron emission tomography-computed tomography (PET-CT) and colonoscopy, respectively. Serological human leukocyte antigen (HLA) typing revealed HLA-B52 positivity. Initial treatment with prednisolone (PSL) (0.5 mg/kg) was insufficient; therefore, ustekinumab and 5-aminosalicylic acid were added. This treatment achieved PSL-free remission for both diseases, as confirmed by PET-CT and colonoscopy. Although treatment guidelines for TAK and CD have been previously established, treatment of patients with TAK with coexisting CD is controversial. Our case suggests that ustekinumab has the ability to achieve TAK remission in addition to its therapeutic effect on CD.


Subject(s)
Crohn Disease , Takayasu Arteritis , Female , Humans , Adolescent , Crohn Disease/complications , Crohn Disease/diagnosis , Crohn Disease/drug therapy , Takayasu Arteritis/complications , Takayasu Arteritis/diagnosis , Takayasu Arteritis/drug therapy , Ustekinumab/therapeutic use , Positron Emission Tomography Computed Tomography , Prednisolone/therapeutic use
17.
Int J Hematol ; 117(3): 398-408, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36335534

ABSTRACT

Although several studies have reported significant effects of patient age on outcomes of allogeneic hematopoietic cell transplantation (HCT), the prognostic relevance of age must be determined separately for myeloablative conditioning (MAC) and reduced-intensity conditioning (RIC). We analyzed Japanese nationwide transplantation registry data of patients aged 20-79 years with acute myeloid leukemia who underwent allogeneic HCT using MAC (n = 7525) or RIC (n = 3154) between 2008 and 2019. Patient were divided into six groups by age, with each group representing a decade, and overall survival (OS), relapse, and non-relapse mortality (NRM) were compared between adjacent age groups. The adverse impact of age on OS increased each decade starting at age 40 among patients receiving MAC, but only differed significantly between patients in their 50s and 60s among those receiving RIC. In patients receiving both MAC and RIC, the detrimental effect of advanced age on OS was accompanied by an increased risk of NRM. These findings show that age affects NRM and OS significantly, but differs depending on conditioning intensity. RIC mitigates the adverse prognostic impact of older age and is thus considered a reasonable option for older patients.


Subject(s)
Graft vs Host Disease , Hematopoietic Stem Cell Transplantation , Leukemia, Myeloid, Acute , Humans , Adult , Retrospective Studies , Graft vs Host Disease/complications , Leukemia, Myeloid, Acute/complications , Prognosis , Recurrence , Hematopoietic Stem Cell Transplantation/adverse effects , Transplantation Conditioning , Chronic Disease
18.
EMBO Mol Med ; 15(1): e15631, 2023 01 11.
Article in English | MEDLINE | ID: mdl-36453131

ABSTRACT

Inosine monophosphate dehydrogenase (IMPDH) is a rate-limiting enzyme in de novo guanine nucleotide synthesis pathway. Although IMPDH inhibitors are widely used as effective immunosuppressants, their antitumor effects have not been proven in the clinical setting. Here, we found that acute myeloid leukemias (AMLs) with MLL-fusions are susceptible to IMPDH inhibitors in vitro. We also showed that alternate-day administration of IMPDH inhibitors suppressed the development of MLL-AF9-driven AML in vivo without having a devastating effect on immune function. Mechanistically, IMPDH inhibition induced overactivation of Toll-like receptor (TLR)-TRAF6-NF-κB signaling and upregulation of an adhesion molecule VCAM1, which contribute to the antileukemia effect of IMPDH inhibitors. Consequently, combined treatment with IMPDH inhibitors and the TLR1/2 agonist effectively inhibited the development of MLL-fusion AML. These findings provide a rational basis for clinical testing of IMPDH inhibitors against MLL-fusion AMLs and potentially other aggressive tumors with active TLR signaling.


Subject(s)
Leukemia, Myeloid, Acute , Myeloid-Lymphoid Leukemia Protein , Humans , Myeloid-Lymphoid Leukemia Protein/metabolism , Leukemia, Myeloid, Acute/drug therapy , Leukemia, Myeloid, Acute/pathology , Enzyme Inhibitors/pharmacology , NF-kappa B , Immunosuppressive Agents/therapeutic use
19.
Geriatrics (Basel) ; 9(1)2023 Dec 21.
Article in English | MEDLINE | ID: mdl-38392101

ABSTRACT

Hot spring bathing is practiced to help manage hypertension. We retrospectively investigated the effects of hot spring bathing on hypertension with the aim of identifying a novel approach to prevent and manage hypertension. The study cohort comprised 99 patients aged ≥65 years admitted to Kyushu University Beppu Hospital between 1 December 2021 and 30 November 2022 who could walk by themselves and who used hot springs for ≥3 days during their hospital stay. The changes in both systolic and diastolic blood pressure were significantly decreased in the night-time bathing group (n = 21) compared with the noontime (n = 26) and afternoon (n = 52) groups. Night-time hot spring bathing was significantly associated with reduced systolic blood pressure the next morning in older adults. Although prospective randomized controlled trials on night-time hot spring bathing as a hypertension treatment are warranted to investigate whether the practice can prevent hypertension among adults aged ≥65 years, we have initiated a single-center, phase II study on the relationship between sleep quality and quality of life in hypertensive patients after night-time hot spring bathing.

20.
Hematol Rep ; 16(1): 1-10, 2023 Dec 22.
Article in English | MEDLINE | ID: mdl-38247991

ABSTRACT

Quality of life (QOL) must be carefully monitored in older patients with lymphoma who are suitable for chemotherapy, but few reports have assessed QOL in older patients who received reduced-intensity chemotherapy. This study investigated QOL in patients with lymphoma aged ≥80 years to clarify the feasibility of such assessments following reduced-intensity chemotherapy. QOL was prospectively analyzed (using the QOL Questionnaire for Cancer Patients Treated with Anticancer Drugs (QOL-ACD)] and the SF-36®, a comprehensive survey of patient health) among 13 patients (seven women) aged ≥80 years with lymphoma who received reduced-intensity chemotherapy at 4-week intervals at Kyushu University Beppu Hospital between June 2022 and August 2023. Patients were assessed at baseline, in the middle of the protocol, at the end of the protocol, and 6 months after the end of the protocol. The overall response rate was 69%. Almost all severe adverse events (10 patients) occurred during early cycles (cycles 1-2). Common adverse events included hematological toxicities such as neutropenia (10 patients). The daily activity (p = 0.048) and social attitude (p = 0.027) scores of the QOL-ACD and the general health perception (p = 0.044) and social functioning (p = 0.030) scores of the SF-36® were significantly improved during and after chemotherapy. Reduced-dose chemotherapy, if implemented before treatment selection, might permit evaluations of QOL in older patients aged ≥80 years; further investigation is warranted.

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