Publications by authors named "Zenke Y"

Aims: This study aimed at developing a scoring system (EAST score) to predict recurrence after chemoradiotherapy in limited-stage small-cell lung cancer (LS-SCLC).

Patients & Methods: Treatment-naïve LS-SCLC patients receiving concurrent chemoradiotherapy (CCRT) ( = 234) or sequential chemoradiotherapy ( = 53) were retrospectively reviewed. Using data from CCRT population, clinical and radiological variables associated with disease progression were identified.

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Pulmonary pleomorphic carcinoma (PC) is a rare non-small-cell lung carcinoma (NSCLC) with a poor prognosis, characterized by tumor necrosis (TN). NETosis is a form of neutrophil-specific cell death, which is morphologically characterized by prominent neutrophil infiltration and cell detritus in the necrotic foci. Seventy-six patients with pulmonary PC who underwent complete resection were enrolled.

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Introduction: HER2 mutations are reported to occur in 2%-5% of all cases of non-small cell lung cancer (NSCLC). The clinical outcomes in patients with HER2-mutant NSCLC treated with immune checkpoint inhibitors (ICIs) plus platinum-based chemotherapy as 1st line treatment still remain unclear.

Methods: Using the large-scale clinico-genomic database of LC-SCRUM-Asia, the clinico-genomic characteristics and therapeutic outcomes of patients with HER2-mutant NSCLC were investigated.

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Article Synopsis
  • SCLC has traditionally been viewed as a single entity, hindering advances in treatment; however, identifying genetic differences is key to improving patient outcomes.
  • A study analyzed over 1000 SCLC samples using genomic screening to identify five distinct genetic subgroups, which can respond differently to therapies, especially targeted treatments.
  • The findings indicate that while certain subgroups, like the NSCLC and MYC subgroups, have poorer survival rates with standard treatments, others may benefit from specialized therapies, highlighting the importance of personalized medicine in SCLC management.
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Background: Adjuvant therapy with durvalumab, with or without tremelimumab, may have efficacy in patients with limited-stage small-cell lung cancer who do not have disease progression after standard concurrent platinum-based chemoradiotherapy.

Methods: In a phase 3, double-blind, randomized, placebo-controlled trial, we assigned patients to receive durvalumab at a dose of 1500 mg, durvalumab (1500 mg) plus tremelimumab at a dose of 75 mg (four doses only), or placebo every 4 weeks for up to 24 months. Randomization was stratified according to disease stage (I or II vs.

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Unlabelled: Bone and soft tissue infections caused by biofilm-forming bacteria, such as methicillin-resistant (MRSA), remain a significant clinical challenge. While the control of local infection is necessary, systemic treatment is also required, and biofilm eradication is a critical target for successful management. Topical antibiotic treatments, such as antibiotic-loaded bone cement (ALBC), have been used for some time, and continuous local antibiotic perfusion therapy, a less invasive method, has been developed by our group.

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The number of amputated finger replantation has declined in the USA and Germany in recent years; however, there have been no reports on recent trends in Japan. We examined the current practices, attempts, and success factors of digit replantation in Japan. We hypothesized that the rates of digit replantation and success rates were consistently standardized in Japan.

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Open fractures continue to be a challenging clinical problem throughout the world, and Japan is no exception. Surgeons are faced with critical decisions throughout the care of these injuries that can have significant effects in clinical outcome, ranging from the type and timing of antibiotic administration, fixation, soft-tissue management, and interventions for postfracture complications. In October 2022, the Japanese Society for Fracture Repair (JSFR) was invited to represent Japan as the Guest Nation society at the 38th Annual Meeting of the Orthopaedic Trauma Society held in Tampa, Florida.

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Objectives: In this study, we explored the clinical outcomes of non-small cell lung cancer (NSCLC) patients with EGFR Exon20 in-frame insertions (Exon20ins), and the impact of the location of Exon20ins on these clinical outcomes.

Materials And Methods: The efficacies of current systemic therapies in NSCLC patients harboring Exon20ins were investigated using a large-scale clinico-genomic database of LC-SCRUM-Asia, and compared with that of amivantamab in the CHRYSALIS trial.

Results: Of the 11,397 patients enrolled in LC-SCRUM-Asia, Exon20ins were detected in 189 patients (1.

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Background: Part E of the KEYNOTE-011 (NCT01840579) study assessed the safety and antitumor activity of pembrolizumab plus platinum-etoposide chemotherapy in Japanese patients with previously untreated extensive-stage small-cell lung cancer (ES-SCLC).

Methods: Patients received 4 cycles of pembrolizumab (200 mg) every 3 weeks in combination with cisplatin (75 mg/m) and etoposide (100 mg/m; days 1, 2, 3) in cohort 1; with carboplatin (AUC 5 mg/mL/min) and etoposide (100 mg/m; days 1, 2, 3) in cohort 2; or with cisplatin/etoposide and pegfilgrastim (3.6 mg; cycle 1, day 4) in cohort 3.

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Background: Antimicrobial agents are administered via intramedullary antibiotic perfusion (iMAP)/intrasoft tissue antibiotic perfusion (iSAP) to infected lesions to control osteoarticular and soft tissue infections. Continuous local antibiotic perfusion (CLAP) has been reported to be useful. This study aimed to investigate the outcomes of DAIR combined with CLAP for chronic PJI after total knee arthroplasty performed at our hospital.

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Article Synopsis
  • - The study focused on patients with stage II-III EGFR-mutant lung adenocarcinoma to identify factors linked to cancer recurrence and assess the tumor microenvironment, analyzing 387 cases from 2008 to 2018.
  • - It found that EGFR-mt tumors had a higher rate of lymph node and lung metastases and shorter disease-free survival (DFS) compared to EGFR-wild-type tumors, particularly in the papillary subtype.
  • - Factors like male sex, advanced stage, and specific tumor characteristics were shown as poor prognostic indicators in EGFR-mt cases, and analysis indicated a correlation between certain tumor subtypes and higher counts of specific tumor-promoting immune cells.
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Background: Immune checkpoint inhibitors (ICI) plus platinum-based chemotherapy has been recognized as a standard first-line therapy in non-small cell lung cancer (NSCLC); however, no prospective clinical trials of docetaxel (DTX) plus ramucirumab (RAM) following first-line ICI plus platinum-based chemotherapy has been reported.

Methods: In this multicentre, open-label, single-arm, phase 2 trial, we enrolled patients with NSCLC from eight centres in Japan. Patients with metastatic NSCLC with disease progression after platinum-based chemotherapy plus ICI were eligible for the study.

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Introduction: BRAF non-V600E mutations occur in 1% to 2% of NSCLCs. Because of their rarity, the clinical backgrounds and outcomes of cytotoxic chemotherapy or immunotherapy remain unclear, and no targeted therapies are approved for BRAF non-V600E-mutant NSCLC.

Methods: In this multi-institutional prospective lung cancer genomic screening project (LC-SCRUM-Asia), we evaluated the clinicogenomic characteristics and therapeutic outcomes of BRAF non-V600E-mutant NSCLC.

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Aims: Dupuytren's contracture is characterized by increased fibrosis of the palmar aponeurosis, with eventual replacement of the surrounding fatty tissue with palmar fascial fibromatosis. We hypothesized that adipocytokines produced by adipose tissue in contact with the palmar aponeurosis might promote fibrosis of the palmar aponeurosis.

Methods: We compared the expression of the adipocytokines adiponectin and leptin in the adipose tissue surrounding the palmar aponeurosis of male patients with Dupuytren's contracture, and of male patients with carpal tunnel syndrome (CTS) as the control group.

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Article Synopsis
  • A retrospective study was conducted on 80 patients receiving whole-brain radiotherapy (WBRT) for leptomeningeal metastasis (LM) from lung adenocarcinoma, focusing on survival outcomes and prognostic factors.
  • The median overall survival (OS) was 6.2 months, with EGFR/ALK mutant patients having significantly better OS (10.4 months) compared to wild-type patients (3.8 months).
  • Key factors associated with better OS included having EGFR/ALK mutations and a good performance status (ECOG PS of 0-1), indicating that these traits may improve survival chances for patients undergoing WBRT.
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  • Thymic carcinoma (TC) is a rare cancer with a poor prognosis and current treatments are limited to the carboplatin and paclitaxel combination, highlighting the need for new strategies.
  • Researchers are testing the combination of the anti-PD-L1 antibody, atezolizumab, with carboplatin and paclitaxel in a phase II study to see if it can improve treatment outcomes for patients with advanced or recurrent TC.
  • The study involves 47 patients and focuses on measuring the effectiveness and safety of this combination treatment, with key endpoints including objective response rate and overall survival.
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The prognostic significance and role of extratumoral alveolar macrophages (exAMs) in lung adenocarcinoma (LUAD) patients remain unknown. In this study, we investigated the prognostic impact and gene expression of exAMs in LUAD patients. The density of alveolar macrophages (AMs) in the peri-tumoral lung field (p-exAMs) and distant lung field (d-exAMs) was evaluated in 217 LUAD patients with lymph node metastasis.

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Introduction: The Seamless Treatment of Osteoporosis against Fractures (STOP-Fx) study was initiated to provide and continue therapeutic interventions for registered patients with osteoporotic fractures.

Materials And Methods: Women who visited six hospitals in the western Kitakyushu area for osteoporotic fractures between October 2016 and December 2018 were included in the study. Data collection for primary and secondary outcomes was conducted from October 2018 to December 2020, 2 years after STOP-Fx study enrollment.

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Introduction: This study aimed to clarify the correlation between the number of AMs and prognosis and to examine the gene expression of AMs in lung squamous cell carcinoma (SqCC).

Methods: We reviewed 124 stage I lung SqCC cases in our hospital and 139 stage I lung SqCC cases in The Cancer Genome Atlas (TCGA) cohort in this study. We counted the number of AMs in the peritumoral lung field (P-AMs) and in the lung field distant from the tumor (D-AMs).

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The safety of osimertinib is limited in patients with severe or moderate renal impairment, or low body weight. This study aimed to investigate the safety, pharmacokinetics (PK) and recommended dose (RD) of osimertinib in patients with epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC) with impaired renal function and low body weight. Thirty-one eligible patients were enrolled and allocated into four cohorts: A, normal renal function (estimated glomerular filtration rate [eGFR] ≥ 50 mL/min/1.

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Article Synopsis
  • KRAS G12C is a significant mutation found in about 14% of Caucasian patients with non-small cell lung cancer (NSCLC), and targeted treatments for this mutation are being developed.
  • A study analyzed data from over 10,000 NSCLC patients to investigate the clinico-genomic features of those with KRAS G12C and found that these patients were predominantly male and smokers with higher tumor mutation burden.
  • The study indicated that while the overall survival rates were similar among different KRAS mutation subtypes, patients with KRAS G12C had better progression-free survival when treated with immune checkpoint inhibitors compared to those with other mutations.
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We aimed to clarify the effect of aging on trabecular bone volume and trabecular bone microstructure in a rat model of Duchenne muscular dystrophy (DMD). Six rats each of wild type (WT) and DMD model at 15 weeks of age, and 4 rats each at 30 weeks of age, were analyzed by dual energy X-ray absorptiometry and by micro-CT for analysis of trabecular and cortical bone of the femur. Bone mineral density was significantly lower in the DMD group than in the WT group at both 15 and 30 weeks of age.

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Introduction: Tertiary lymphoid structures (TLS) are observed in several cancers and are associated with favorable prognosis. This study aimed to examine the clinicopathological, genetic, and gene expression profiles of lung adenocarcinoma patients with TLS.

Methods: A total of 112 patients with pathological stage IB lung adenocarcinoma who underwent complete resection between 2011 and 2015 were enrolled in this study.

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