Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 283
Filtrar
1.
Rinsho Ketsueki ; 65(5): 330-334, 2024.
Artículo en Japonés | MEDLINE | ID: mdl-38825509

RESUMEN

A 53-year-old woman presented with shortness of breath and hyperleukocytosis and was admitted to our hospital. Shortly after, she went into cardiopulmonary arrest and was resuscitated. Her white blood cell count was 566,000/µl, with 94.5% cup-like blasts positive for MPO staining and FLT3-ITD positive, so she was diagnosed with acute myeloid leukemia (AML) M1. She also had disseminated intravascular coagulation and tumor lysis syndrome. Extracorporeal membrane oxygenation (ECMO) was started to manage bilateral pulmonary thromboembolism that had developed due to deep vein thrombosis, and induction therapy was performed under ECMO. On the third day of illness, the patient developed cerebral hemorrhage. Hematological remission was confirmed on the 39th day of illness. After consolidation therapy with chemotherapy and an FLT3 inhibitor, she underwent allogeneic hematopoietic stem cell transplantation, and remains alive. Case reports suggest strong evidence of mortality benefit from ECMO in patients with hematologic malignancies, particularly when ECMO served as a bridge through chemotherapy. Our patient suffered from cardiopulmonary arrest due to hyperleukocytosis and pulmonary thromboembolism, but was saved by induction of remission under ECMO. Improvements in supportive care should lead to reduction in early deaths during induction therapy.


Asunto(s)
Oxigenación por Membrana Extracorpórea , Leucemia Mieloide Aguda , Humanos , Femenino , Persona de Mediana Edad , Leucemia Mieloide Aguda/terapia , Leucemia Mieloide Aguda/complicaciones , Inducción de Remisión , Resultado del Tratamiento , Quimioterapia de Inducción , Trasplante de Células Madre Hematopoyéticas , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
2.
J Cardiol ; 2024 Jun 03.
Artículo en Inglés | MEDLINE | ID: mdl-38839041

RESUMEN

BACKGROUND: Palliative care (PC) benefits cancer patients and those with heart failure (HF), improving quality of life and symptom burden. Despite guidelines recommending the integration of PC into HF care, its use remains inadequate, partly due to insufficient public awareness. This study aimed to assess the public awareness of PC for HF in Japan and identify factors associated with awareness. METHODS: A cross-sectional online survey was conducted from March 6-13, 2023, using a panel operated by Intage Inc. (Tokyo, Japan), which has a pool of 3.78 million potential Japanese respondents. The survey included 51,790 participants, matched for sex, age, and region of residence. Participants were asked about their awareness of PC eligibility for HF, along with demographic information, history of hospitalization for sudden illness, outpatient visits, and health status in the previous 2 years. The χ2 test and Cramer's V were used to analyze associations between awareness and variables, and multivariate logistic regression was used to estimate awareness predictors. RESULTS: In total, 91 % of participants were unaware of PC eligibility for HF. Age group, healthcare professional occupation, and history of hospitalization for acute myocardial infarction, acute HF, acute pulmonary embolism, and ruptured aortic aneurysm had weak to moderate associations with awareness. Multivariate analysis revealed that a history of hospitalization for sudden cardiovascular illness and being a healthcare professional were positively related to awareness, while age, female sex, and being married were associated with lower odds of awareness. CONCLUSION: The low public awareness of PC for HF in Japan underscores the importance of increasing awareness of the eligibility of PC for HF, as well as cancer, to integrate PC into HF practice as basic care.

3.
ASAIO J ; 2024 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-38753573

RESUMEN

Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) is a therapeutic strategy for managing cardiogenic shock. However, it carries the risk of cardiogenic pulmonary edema, potentially leading to differential hypoxia. Although IMPELLA can mitigate pulmonary congestion, the combination of VA-ECMO and IMPELLA has frequently resulted in differential hypoxia, requiring a transition from VA-ECMO to veno-arteriovenous extracorporeal membrane oxygenation (VAV-ECMO). Therefore, this study aimed to examine the influence of IMPELLA on the incidence of differential hypoxia, necessitating a shift to VAV-ECMO. This single-center, retrospective, observational study included patients who experienced cardiopulmonary arrest and received treatment with VA-ECMO combined with an intra-aortic balloon pump (IABP) or IMPELLA between 2017 and 2022. The primary endpoint assessed the incidence of differential hypoxia, necessitating a switch to VAV-ECMO. Patients with cardiopulmonary arrest received treatment with VA-ECMO in combination with IABP (N = 28) or IMPELLA (N = 29). There was a significant increase in differential hypoxia 96 hours post-VA-ECMO initiation in the IMPELLA group, necessitating a transition to VAV-ECMO. The combination of VA-ECMO and IMPELLA in patients experiencing cardiopulmonary arrest may significantly increase the risk of differential hypoxia. A multidisciplinary approach employing mechanical circulatory support is crucial, with ongoing consideration of the potential risks associated with differential hypoxia.

4.
Anticancer Res ; 44(6): 2393-2406, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38821585

RESUMEN

BACKGROUND/AIM: Cholangiocarcinoma (CCA) is an aggressive tumor with limited treatment options especially in 2nd line or later treatments. Targeting fibroblast growth factor receptor (FGFR) 2 has recently emerged as a promising treatment option for patients with CCA harboring FGFR2-fusion. This study investigated the antitumor activities of tasurgratinib as an orally available FGFR1-3 inhibitor, in preclinical FGFR2-driven CCA models. MATERIALS AND METHODS: Antitumor activities of tasurgratinib were examined in vitro and in vivo using NIH/3T3 cells expressing FGFR2-fusion as FGFR2-driven CCA models, and in vivo using a CCA patient-derived xenograft model. The molecular mechanism of action of tasurgratinib was elucidated through co-crystal structure analysis with FGFR1, manual complex model analysis with FGFR2, and binding kinetics analysis with FGFR2. Furthermore, the cell-based inhibitory activities against acquired resistant FGFR2 mutations in patients with CCA treated with FGFR inhibitors were evaluated. RESULTS: Tasurgratinib showed antitumor activity in preclinical FGFR2-driven CCA models by inhibiting the FGFR signaling pathway in vitro and in vivo. Furthermore, cell-based target engagement assays indicated that tasurgratinib had potent inhibitory activities against FGFR2 mutations, such as N549H/K, which are the major acquired mutations in CCA. We also confirmed that tasurgratinib exhibited fast association and slow dissociation kinetics with FGFR2, binding to the ATP-binding site and the neighboring region, and adopting an Asp-Phe-Gly (DFG)-"in" conformation. CONCLUSION: These data demonstrate the therapeutic potential of tasurgratinib in FGFR2-driven CCA and provide molecular mechanistic insights into its unique inhibitory profile against secondary FGFR2 resistance mutations in patients with CCA treated with FGFR inhibitors.


Asunto(s)
Neoplasias de los Conductos Biliares , Colangiocarcinoma , Receptor Tipo 2 de Factor de Crecimiento de Fibroblastos , Ensayos Antitumor por Modelo de Xenoinjerto , Colangiocarcinoma/tratamiento farmacológico , Colangiocarcinoma/genética , Colangiocarcinoma/patología , Colangiocarcinoma/metabolismo , Animales , Humanos , Receptor Tipo 2 de Factor de Crecimiento de Fibroblastos/antagonistas & inhibidores , Receptor Tipo 2 de Factor de Crecimiento de Fibroblastos/genética , Receptor Tipo 2 de Factor de Crecimiento de Fibroblastos/metabolismo , Ratones , Neoplasias de los Conductos Biliares/tratamiento farmacológico , Neoplasias de los Conductos Biliares/patología , Neoplasias de los Conductos Biliares/genética , Neoplasias de los Conductos Biliares/metabolismo , Administración Oral , Receptor Tipo 1 de Factor de Crecimiento de Fibroblastos/antagonistas & inhibidores , Receptor Tipo 1 de Factor de Crecimiento de Fibroblastos/genética , Receptor Tipo 1 de Factor de Crecimiento de Fibroblastos/metabolismo , Células 3T3 NIH , Receptor Tipo 3 de Factor de Crecimiento de Fibroblastos/antagonistas & inhibidores , Receptor Tipo 3 de Factor de Crecimiento de Fibroblastos/genética , Receptor Tipo 3 de Factor de Crecimiento de Fibroblastos/metabolismo , Línea Celular Tumoral , Antineoplásicos/farmacología , Antineoplásicos/administración & dosificación , Inhibidores de Proteínas Quinasas/farmacología , Pirimidinas/farmacología , Pirimidinas/administración & dosificación , Proliferación Celular/efectos de los fármacos , Proteínas de Fusión Oncogénica/genética , Proteínas de Fusión Oncogénica/metabolismo , Proteínas de Fusión Oncogénica/antagonistas & inhibidores
5.
Nature ; 629(8013): 910-918, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38693263

RESUMEN

International differences in the incidence of many cancer types indicate the existence of carcinogen exposures that have not yet been identified by conventional epidemiology make a substantial contribution to cancer burden1. In clear cell renal cell carcinoma, obesity, hypertension and tobacco smoking are risk factors, but they do not explain the geographical variation in its incidence2. Underlying causes can be inferred by sequencing the genomes of cancers from populations with different incidence rates and detecting differences in patterns of somatic mutations. Here we sequenced 962 clear cell renal cell carcinomas from 11 countries with varying incidence. The somatic mutation profiles differed between countries. In Romania, Serbia and Thailand, mutational signatures characteristic of aristolochic acid compounds were present in most cases, but these were rare elsewhere. In Japan, a mutational signature of unknown cause was found in more than 70% of cases but in less than 2% elsewhere. A further mutational signature of unknown cause was ubiquitous but exhibited higher mutation loads in countries with higher incidence rates of kidney cancer. Known signatures of tobacco smoking correlated with tobacco consumption, but no signature was associated with obesity or hypertension, suggesting that non-mutagenic mechanisms of action underlie these risk factors. The results of this study indicate the existence of multiple, geographically variable, mutagenic exposures that potentially affect tens of millions of people and illustrate the opportunities for new insights into cancer causation through large-scale global cancer genomics.


Asunto(s)
Carcinoma de Células Renales , Exposición a Riesgos Ambientales , Geografía , Neoplasias Renales , Mutágenos , Mutación , Femenino , Humanos , Masculino , Ácidos Aristolóquicos/efectos adversos , Carcinoma de Células Renales/genética , Carcinoma de Células Renales/epidemiología , Carcinoma de Células Renales/inducido químicamente , Exposición a Riesgos Ambientales/efectos adversos , Exposición a Riesgos Ambientales/análisis , Genoma Humano/genética , Genómica , Hipertensión/epidemiología , Incidencia , Japón/epidemiología , Neoplasias Renales/genética , Neoplasias Renales/epidemiología , Neoplasias Renales/inducido químicamente , Mutágenos/efectos adversos , Obesidad/epidemiología , Factores de Riesgo , Rumanía/epidemiología , Serbia/epidemiología , Tailandia/epidemiología , Fumar Tabaco/efectos adversos , Fumar Tabaco/genética
6.
Am J Surg Pathol ; 48(6): 652-661, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38584451

RESUMEN

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.


Asunto(s)
Adenocarcinoma , Biomarcadores de Tumor , Transformación Celular Neoplásica , Mutación , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/genética , Neoplasias Gástricas/patología , Adenocarcinoma/genética , Adenocarcinoma/patología , Adenocarcinoma/química , Masculino , Femenino , Persona de Mediana Edad , Anciano , Transformación Celular Neoplásica/genética , Transformación Celular Neoplásica/patología , Biomarcadores de Tumor/genética , Biomarcadores de Tumor/análisis , Proteína de Unión al GTP rhoA/genética , Diferenciación Celular , Adulto , Fenotipo , Anciano de 80 o más Años , Proteína p53 Supresora de Tumor/genética , Predisposición Genética a la Enfermedad , Análisis Mutacional de ADN , Secuenciación de Nucleótidos de Alto Rendimiento
7.
EBioMedicine ; 103: 105102, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38614865

RESUMEN

BACKGROUND: Cell-cell interaction factors that facilitate the progression of adenoma to sporadic colorectal cancer (CRC) remain unclear, thereby hindering patient survival. METHODS: We performed spatial transcriptomics on five early CRC cases, which included adenoma and carcinoma, and one advanced CRC. To elucidate cell-cell interactions within the tumour microenvironment (TME), we investigated the colocalisation network at single-cell resolution using a deep generative model for colocalisation analysis, combined with a single-cell transcriptome, and assessed the clinical significance in CRC patients. FINDINGS: CRC cells colocalised with regulatory T cells (Tregs) at the adenoma-carcinoma interface. At early-stage carcinogenesis, cell-cell interaction inference between colocalised adenoma and cancer epithelial cells and Tregs based on the spatial distribution of single cells highlighted midkine (MDK) as a prominent signalling molecule sent from tumour epithelial cells to Tregs. Interaction between MDK-high CRC cells and SPP1+ macrophages and stromal cells proved to be the mechanism underlying immunosuppression in the TME. Additionally, we identified syndecan4 (SDC4) as a receptor for MDK associated with Treg colocalisation. Finally, clinical analysis using CRC datasets indicated that increased MDK/SDC4 levels correlated with poor overall survival in CRC patients. INTERPRETATION: MDK is involved in the immune tolerance shown by Tregs to tumour growth. MDK-mediated formation of the TME could be a potential target for early diagnosis and treatment of CRC. FUNDING: Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Science Research; OITA Cancer Research Foundation; AMED under Grant Number; Japan Science and Technology Agency (JST); Takeda Science Foundation; The Princess Takamatsu Cancer Research Fund.


Asunto(s)
Neoplasias Colorrectales , Análisis de la Célula Individual , Linfocitos T Reguladores , Microambiente Tumoral , Humanos , Neoplasias Colorrectales/inmunología , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología , Neoplasias Colorrectales/metabolismo , Neoplasias Colorrectales/mortalidad , Linfocitos T Reguladores/inmunología , Linfocitos T Reguladores/metabolismo , Microambiente Tumoral/inmunología , Carcinogénesis/genética , Carcinogénesis/inmunología , Perfilación de la Expresión Génica , Transcriptoma , Comunicación Celular/inmunología , Tolerancia Inmunológica , Regulación Neoplásica de la Expresión Génica , Masculino , Femenino
8.
Circ J ; 2024 Mar 08.
Artículo en Inglés | MEDLINE | ID: mdl-38462535

RESUMEN

BACKGROUND: Patients with appropriately selected low-risk pulmonary embolism (PE) can be treated at home, although it has been controversial whether applies to patients with cancer, who are considered not to be at low risk.Methods and Results: The current predetermined companion report from the ONCO PE trial evaluated the 3-month clinical outcomes of patients with home treatment and those with in-hospital treatment. The ONCO PE trial was a multicenter, randomized clinical trial among 32 institutions in Japan investigating the optimal duration of rivaroxaban treatment in cancer-associated PE patients with a score of 1 using the simplified version of the Pulmonary Embolism Severity Index (sPESI). Among 178 study patients, there were 66 (37%) in the home treatment group and 112 (63%) in the in-hospital treatment group. The primary endpoint of a composite of PE-related death, recurrent venous thromboembolism (VTE) and major bleeding occurred in 3 patients (4.6% [0.0-9.6%]) in the home treatment group and in 2 patients (1.8% [0.0-4.3%]) in the in-hospital treatment group. In the home treatment group, there were no cases of PE-related death or recurrent VTE, but major bleeding occurred in 3 patients (4.6% [0.0-9.6%]), and 2 patients (3.0% [0.0-7.2%]) required hospitalization due to bleeding events. CONCLUSIONS: Active cancer patients with PE of sPESI score=1 could be potential candidates for home treatment.

9.
Cancer Sci ; 115(6): 1763-1777, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38527308

RESUMEN

Overcoming resistance to immune checkpoint inhibitors is an important issue in patients with non-small-cell lung cancer (NSCLC). Transcriptome analysis shows that adenocarcinoma can be divided into three molecular subtypes: terminal respiratory unit (TRU), proximal proliferative (PP), and proximal inflammatory (PI), and squamous cell carcinoma (LUSQ) into four. However, the immunological characteristics of these subtypes are not fully understood. In this study, we investigated the immune landscape of NSCLC tissues in molecular subtypes using a multi-omics dataset, including tumor-infiltrating leukocytes (TILs) analyzed using flow cytometry, RNA sequences, whole exome sequences, metabolomic analysis, and clinicopathologic findings. In the PI subtype, the number of TILs increased and the immune response in the tumor microenvironment (TME) was activated, as indicated by high levels of tertiary lymphoid structures, and high cytotoxic marker levels. Patient prognosis was worse in the PP subtype than in other adenocarcinoma subtypes. Glucose transporter 1 (GLUT1) expression levels were upregulated and lactate accumulated in the TME of the PP subtype. This could lead to the formation of an immunosuppressive TME, including the inactivation of antigen-presenting cells. The TRU subtype had low biological malignancy and "cold" tumor-immune phenotypes. Squamous cell carcinoma (LUSQ) did not show distinct immunological characteristics in its respective subtypes. Elucidation of the immune characteristics of molecular subtypes could lead to the development of personalized immune therapy for lung cancer. Immune checkpoint inhibitors could be an effective treatment for the PI subtype. Glycolysis is a potential target for converting an immunosuppressive TME into an antitumorigenic TME in the PP subtype.


Asunto(s)
Adenocarcinoma del Pulmón , Transportador de Glucosa de Tipo 1 , Neoplasias Pulmonares , Linfocitos Infiltrantes de Tumor , Microambiente Tumoral , Humanos , Microambiente Tumoral/inmunología , Neoplasias Pulmonares/inmunología , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Adenocarcinoma del Pulmón/inmunología , Adenocarcinoma del Pulmón/patología , Adenocarcinoma del Pulmón/genética , Linfocitos Infiltrantes de Tumor/inmunología , Linfocitos Infiltrantes de Tumor/metabolismo , Transportador de Glucosa de Tipo 1/genética , Transportador de Glucosa de Tipo 1/metabolismo , Carcinoma de Células Escamosas/inmunología , Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/patología , Pronóstico , Carcinoma de Pulmón de Células no Pequeñas/inmunología , Carcinoma de Pulmón de Células no Pequeñas/genética , Carcinoma de Pulmón de Células no Pequeñas/patología , Masculino , Femenino , Anciano , Regulación Neoplásica de la Expresión Génica , Persona de Mediana Edad , Perfilación de la Expresión Génica
10.
J Cardiol ; 2024 Feb 02.
Artículo en Inglés | MEDLINE | ID: mdl-38311113

RESUMEN

BACKGROUND: There is a concern that the coronavirus disease 2019 (COVID-19) pandemic has led to underutilization of non-invasive positive pressure ventilation (NPPV) in patients with acute heart failure (HF). We investigated the alterations in clinical management of acute HF during the COVID-19 pandemic. METHODS AND RESULTS: This study was an observational study of patients treated in emergency care with acute HF, using a Japanese Administrative database for a period before and during the COVID-19 pandemic. Of the 9081 overall eligible patients, the ratio of patients receiving NPPV and tracheal intubation during to before the COVID-19 pandemic were 0.88 [95 % confidence interval (CI): 0.80, 0.96] and 1.38 (95 % CI: 1.11, 1.71), respectively. Propensity score matching in patients treated in COVID-19 receiving facilities and emergency declaration response areas showed that ratio of NPPV and tracheal intubation during to before the COVID-19 pandemic were 0.88 (95 % CI: 0.76, 1.03), and 1.65 (95 % CI: 1.19, 2.28), respectively. CONCLUSIONS: The implementation rate of NPPV decreased significantly in eligible patients, with a decreasing trend observed in patient populations in COVID-19 receiving facilities and emergency declaration response areas. Tracheal intubation increased in all populations.

12.
Nat Commun ; 14(1): 8383, 2023 Dec 16.
Artículo en Inglés | MEDLINE | ID: mdl-38104198

RESUMEN

Renal cell carcinoma (RCC) comprises several histological types characterised by different genomic and epigenomic aberrations; however, the molecular pathogenesis of each type still requires further exploration. We perform whole-genome sequencing of 128 Japanese RCC cases of different histology to elucidate the significant somatic alterations and mutagenesis processes. We also perform transcriptomic and epigenomic sequencing to identify distinguishing features, including assay for transposase-accessible chromatin sequencing (ATAC-seq) and methyl sequencing. Genomic analysis reveals that the mutational signature differs among the histological types, suggesting that different carcinogenic factors drive each histology. From the ATAC-seq results, master transcription factors are identified for each histology. Furthermore, clear cell RCC is classified into three epi-subtypes, one of which expresses highly immune checkpoint molecules with frequent loss of chromosome 14q. These genomic and epigenomic features may lead to the development of effective therapeutic strategies for RCC.


Asunto(s)
Carcinoma de Células Renales , Neoplasias Renales , Humanos , Carcinoma de Células Renales/patología , Epigenómica , Japón , Genómica/métodos , Cromatina , Neoplasias Renales/patología
13.
J Cardiol ; 2023 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-38000538

RESUMEN

BACKGROUND: The characteristics, tolerability, and outcomes in patients with heart failure (HF) who are treated with sacubitril/valsartan remain unclear in Japan. METHODS: We conducted a nationwide multicenter study to evaluate the features and outcomes of patients newly prescribed sacubitril/valsartan for the management of HF. We analyzed adverse events (AEs) related to sacubitril/valsartan at 3 months, which were defined as hypotension, worsening renal function, hyperkalemia, and angioedema. Additionally, the association between AEs and outcomes was examined. RESULTS: Among 993 patients, the mean age was 70 years and 291 (29.3 %) were female, and 22.8 % had left ventricular ejection fraction ≥50 %. Of them, 20.8 % had systolic blood pressure (sBP) <100 mmHg, and 19.5 % had estimated glomerular filtration rate (eGFR) <30 ml/min/1.73 m2 at baseline, which were the populations excluded from the eligibility in landmark trials. AEs related to sacubitril/valsartan were observed in 22.5 % of the patients at 3 months. Overall, 22.6 % of patients discontinued sacubitril/valsartan, and hypotension was the most common event leading to drug discontinuation. After adjustment, patients who had worse HF symptoms (New York Heart Association III or IV), sBP <100 mmHg, and eGFR <30 ml/min/1.73 m2 were associated with a higher risk of AEs related to sacubitril/valsartan. Additionally, patients experiencing AEs had a higher risk of cardiovascular death or HF hospitalization than those who did not. CONCLUSION: In Japan, sacubitril/valsartan was also prescribed to patients not eligible for landmark trials, and AEs were observed at a relatively high rate from soon after treatment initiation. Physicians should closely monitor patients for these events, especially in patients anticipated to have a higher risk of AEs.

14.
Circ J ; 88(1): 135-143, 2023 Dec 25.
Artículo en Inglés | MEDLINE | ID: mdl-37989279

RESUMEN

BACKGROUND: Enhanced discussions regarding end-of-life (EOL) are crucial to provide appropriate care for seriously ill patients. However, the current status of EOL discussions, especially their timing and influencing factors, among patients with cardiovascular diseases (CVD) remains unknown.Methods and Results: We conducted a cross-sectional questionnaire survey of bereaved family members of CVD patients who died at 10 tertiary care institutes in Japan. In all, 286 bereaved family members (38.2% male; median age 66.0 [interquartile range 58.0-73.0] years) of CVD patients were enrolled; of these, 200 (69.9%) reported that their families had had EOL discussions with physicians. The major topic discussed was resuscitation (79.0%), and 21.5% discussed the place of EOL care. Most discussions were held during hospitalization of the patient (88.2%). More than half (57.1%) the discussions were initiated less than 1 month before the patient died, and 22.6% of family members felt that this timing of EOL discussions was late. Bereaved family members' perception of late EOL discussions was associated with the family members aggressive attitude towards life-prolonging treatment, less preparedness for bereavement, and less satisfaction with EOL care. CONCLUSIONS: Approximately 70% of bereaved family members of CVD patients had EOL discussions, which were often held shortly before the patient died. Further research is required to establish an ideal approach to EOL discussions at an appropriate time, which may improve the quality of EOL care.


Asunto(s)
Enfermedades Cardiovasculares , Cuidado Terminal , Humanos , Masculino , Persona de Mediana Edad , Anciano , Femenino , Enfermedades Cardiovasculares/terapia , Estudios Transversales , Muerte , Familia
15.
Nat Commun ; 14(1): 6514, 2023 10 16.
Artículo en Inglés | MEDLINE | ID: mdl-37845228

RESUMEN

Chronic inflammation promotes development and progression of colorectal cancer (CRC). To comprehensively understand the molecular mechanisms underlying the development and progression of inflamed CRC, we perform in vivo screening and identify 142 genes that are frequently mutated in inflammation-associated colon tumors. These genes include senescence and TGFß-activin signaling genes. We find that TNFα can induce stemness and activate senescence signaling by enhancing cell plasticity in colonic epithelial cells, which could act as a selective pressure to mutate senescence-related genes in inflammation-associated colonic tumors. Furthermore, we show the efficacy of the Cdk4/6 inhibitor in vivo for inflammation-associated colonic tumors. Finally, we functionally validate that Arhgap5 and Mecom are tumor suppressor genes, providing possible therapeutic targets for CRC. Thus, we demonstrate the importance of the inactivation of senescence pathways in CRC development and progression in an inflammatory microenvironment, which can help progress toward precision medicine.


Asunto(s)
Neoplasias del Colon , Neoplasias Colorrectales , Humanos , Neoplasias Colorrectales/genética , Neoplasias del Colon/genética , Mutagénesis , Inflamación/genética , Transducción de Señal , Microambiente Tumoral
16.
Br J Cancer ; 129(7): 1105-1118, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37596408

RESUMEN

BACKGROUND: Intratumor heterogeneity (ITH) in microsatellite instability-high (MSI-H) colorectal cancer (CRC) has been poorly studied. We aimed to clarify how the ITH of MSI-H CRCs is generated in cancer evolution and how immune selective pressure affects ITH. METHODS: We reanalyzed public whole-exome sequencing data on 246 MSI-H CRCs. In addition, we performed a multi-region analysis from 6 MSI-H CRCs. To verify the process of subclonal immune escape accumulation, a novel computational model of cancer evolution under immune pressure was developed. RESULTS: Our analysis presented the enrichment of functional genomic alterations in antigen-presentation machinery (APM). Associative analysis of neoantigens indicated the generation of immune escape mechanisms via HLA alterations. Multiregion analysis revealed the clonal acquisition of driver mutations and subclonal accumulation of APM defects in MSI-H CRCs. Examination of variant allele frequencies demonstrated that subclonal mutations tend to be subjected to selective sweep. Computational simulations of tumour progression with the interaction of immune cells successfully verified the subclonal accumulation of immune escape mutations and suggested the efficacy of early initiation of an immune checkpoint inhibitor (ICI) -based treatment. CONCLUSIONS: Our results demonstrate the heterogeneous acquisition of immune escape mechanisms in MSI-H CRCs by Darwinian selection, providing novel insights into ICI-based treatment strategies.


Asunto(s)
Neoplasias del Colon , Neoplasias Colorrectales , Humanos , Inestabilidad de Microsatélites , Neoplasias Colorrectales/patología , Neoplasias del Colon/genética , Mutación , Presentación de Antígeno , Repeticiones de Microsatélite/genética
18.
Cancer Res Commun ; 3(6): 1026-1040, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37377611

RESUMEN

Resistance to immune checkpoint blockade remains challenging in patients with non-small cell lung cancer (NSCLC). Tumor-infiltrating leukocyte (TIL) quantity, composition, and activation status profoundly influence responsiveness to cancer immunotherapy. This study examined the immune landscape in the NSCLC tumor microenvironment by analyzing TIL profiles of 281 fresh resected NSCLC tissues. Unsupervised clustering based on numbers and percentages of 30 TIL types classified adenocarcinoma (LUAD) and squamous cell carcinoma (LUSQ) into the cold, myeloid cell-dominant, and CD8+ T cell-dominant subtypes. These were significantly correlated with patient prognosis; the myeloid cell subtype had worse outcomes than the others. Integrated genomic and transcriptomic analyses, including RNA sequencing, whole-exome sequencing, T-cell receptor repertoire, and metabolomics of tumor tissue, revealed that immune reaction-related signaling pathways were inactivated, while the glycolysis and K-ras signaling pathways activated in LUAD and LUSQ myeloid cell subtypes. Cases with ALK and ROS1 fusion genes were enriched in the LUAD myeloid subtype, and the frequency of TERT copy-number variations was higher in LUSQ myeloid subtype than in the others. These classifications of NSCLC based on TIL status may be useful for developing personalized immune therapies for NSCLC. Significance: The precise TIL profiling classified NSCLC into novel three immune subtypes that correlates with patient outcome, identifying subtype-specific molecular pathways and genomic alterations that should play important roles in constructing subtype-specific immune tumor microenvironments. These classifications of NSCLC based on TIL status are useful for developing personalized immune therapies for NSCLC.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Humanos , Carcinoma de Pulmón de Células no Pequeñas/genética , Neoplasias Pulmonares/genética , Proteínas Tirosina Quinasas/metabolismo , Linfocitos Infiltrantes de Tumor , Proteínas Proto-Oncogénicas/metabolismo , Transducción de Señal/genética , Microambiente Tumoral/genética
20.
Nucleic Acids Res ; 51(14): e74, 2023 08 11.
Artículo en Inglés | MEDLINE | ID: mdl-37336583

RESUMEN

We present our novel software, nanomonsv, for detecting somatic structural variations (SVs) using tumor and matched control long-read sequencing data with a single-base resolution. The current version of nanomonsv includes two detection modules, Canonical SV module, and Single breakend SV module. Using tumor/control paired long-read sequencing data from three cancer and their matched lymphoblastoid lines, we demonstrate that Canonical SV module can identify somatic SVs that can be captured by short-read technologies with higher precision and recall than existing methods. In addition, we have developed a workflow to classify mobile element insertions while elucidating their in-depth properties, such as 5' truncations, internal inversions, as well as source sites for 3' transductions. Furthermore, Single breakend SV module enables the detection of complex SVs that can only be identified by long-reads, such as SVs involving highly-repetitive centromeric sequences, and LINE1- and virus-mediated rearrangements. In summary, our approaches applied to cancer long-read sequencing data can reveal various features of somatic SVs and will lead to a better understanding of mutational processes and functional consequences of somatic SVs.


Asunto(s)
Variación Estructural del Genoma , Neoplasias , Programas Informáticos , Humanos , Genoma Humano , Secuenciación de Nucleótidos de Alto Rendimiento/métodos , Mutación , Neoplasias/genética , Análisis de Secuencia de ADN/métodos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA