Publications by authors named "Yingwan Luo"

N6-methyladenosine (mA) is the most prevalent epitranscriptomic modification in mammalian mRNA. Recent studies have revealed mA is involved in the pathogenesis of various malignant tumors including hematologic neoplasms. Nevertheless, the specific roles of mA modification and mA regulators in myelodysplastic neoplasms (MDS) remain poorly understood.

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  • - Mutant isocitrate dehydrogenases (IDHs) create R-2-hydroxyglutarate (R-2HG), which hampers the growth of acute myeloid leukemia (AML) cells by promoting necroptosis, a specific type of cell death.
  • - R-2HG acts by inhibiting lysine demethylase 2B (KDM2B), which leads to increased levels of a specific histone modification and the expression of RIPK1, further driving necroptosis in AML cells.
  • - The expression of RIPK3 is reduced in IDH-mutant AML cells due to DNA methylation, making them resistant to R-2HG; however,
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  • * The study identified that the transcription factor ONECUT3 is linked to complex karyotypes and poorer survival in MDS, as it drives the upregulation of genes associated with chromosome division and separation.
  • * A compound named C5484617 was found to inhibit ONECUT3's activity, potentially serving as a treatment that could enhance the effectiveness of existing therapies for high-risk MDS patients with chromosomal abnormalities.
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Background And Objective: Myelodysplastic syndromes (MDS) are myeloid neoplasms characterized by ineffective hematopoiesis due to stem cell abnormalities. Monosomy 7q aberrations are a common cytogenetic abnormality in MDS. Specifically, an unbalanced translocation der(1;7)(q10;p10) [der(1;7)] has been identified in MDS patients, which is a monosomy 7q aberration variant like -7/del(7q).

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  • - The study explored how apoptosis-related genes contribute to the development of thoracic aortic aneurysms (TAA), using two gene expression datasets to analyze differences between TAA and normal samples.
  • - Researchers found 9 significant apoptosis-related genes and reconstructed complex regulatory networks involving 150 miRNAs and 6 mRNAs, while also examining their relationships with immune cell infiltration in TAA.
  • - Three unique patterns of apoptosis modification were discovered, highlighting differences in immune profiles and drug response, which could inform future research and treatment strategies for TAA.
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  • - The study explored the effectiveness of combining azacytidine (AZA) with a 15-day regimen of venetoclax (VEN-15d) in patients with refractory and relapsed high-risk myelodysplastic syndrome (HR-MDS), revealing a notable overall response rate of 57.2%.
  • - Patients treated with this combination showed a median overall survival of 14 months, while experiencing common side effects like blood cell depletion and infections.
  • - The findings suggest this treatment may benefit patients who did not respond well to other hypomethylating agents and could potentially reduce disease burden for those needing a stem cell transplant, indicating a need for further clinical trials.
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Background: Decitabine (DAC) is used as the first-line therapy in patients with higher-risk myelodysplastic syndromes (HR-MDS) and elderly acute myeloid leukaemia (AML) patients unsuitable for intensive chemotherapy. However, the clinical outcomes of patients treated with DAC as a monotherapy are far from satisfactory. Adding all-trans retinoic acid (ATRA) to DAC reportedly benefitted MDS and elderly AML patients.

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  • - Single gene mutations in the RAS pathway are rare in myelodysplastic syndrome (MDS) and unclear in significance, but overall mutations (RASway) in this pathway may be important, with 15.41% of 370 newly diagnosed MDS patients exhibiting RASway.
  • - Patients with RASway tended to have more severe disease characteristics, including a higher percentage of marrow blasts, a greater number of co-mutations, and a greater likelihood of high-risk classification and acute myeloid leukemia transformation compared to those without RASway mutations.
  • - Overall survival for patients with RASway was significantly shorter than for those without it, especially in cases with fewer marrow blasts and normal chromosome structure, indicating
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  • - The study investigates the significance of variant allelic frequency (VAF) in predicting outcomes for myelodysplastic syndromes (MDS), focusing on 350 newly diagnosed cases.
  • - It found that higher VAF in genes DNMT3A and TP53 is linked to shorter overall survival, while TET2 and TP53 VAF are associated with quicker progression to leukemia.
  • - The researchers developed nomograms to help clinicians predict patient outcomes by integrating these genetic factors into existing prognostic frameworks.
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B-cell acute lymphoblastic leukemia is the most common malignant tumor in children. About 10-15% of patients will relapse with a 5-year OS of 57.5% for the past 20 years.

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Background: Myelodysplastic syndrome (MDS) arises from a rare population of aberrant hematopoietic stem and progenitor cells (HSPCs). These cells are relatively quiescent and therefore treatment resistant. Understanding mechanisms underlying their maintenance is critical for effective MDS treatment.

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Unlabelled: Natural killer (NK) cells and T cells are key effectors of antitumor immune responses and major targets of checkpoint inhibitors. In multiple cancer types, we find that the expression of Wnt signaling potentiator R-spondin genes (e.g.

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  • The study investigates how genetic abnormalities influence clinical factors and prognosis in Chinese patients with myelodysplastic syndromes (MDS).
  • Out of 634 patients, 38.6% had abnormal karyotypes, with +8 being the most frequent, linked to younger age and better hemoglobin levels; however, it indicated poorer overall survival (OS) when complicated by other abnormalities.
  • Factors such as older age, high marrow blast count, and certain genetic mutations were identified as predictors of lower OS, while some mutations (like SF3B1) were associated with better prognosis.
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Chronic myelomonocytic leukemia (CMML) is a rare disease of elderly people characterized by the presence of sustained peripheral blood monocytosis, overlapping features of myeloproliferation, and myelodysplasia. We present a large retrospective study of 156 CMML patients in China. Mean age at diagnosis was 68 years old (range 23-91).

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The clinical relevance of variant allele frequency (VAF) of recurrent mutations in myelodysplastic syndromes (MDS) has been increasingly reported. However, the prognostic value of mutational VAF across the genetic spectrum of MDS has not been extensively evaluated. In this study, we profiled the mutational spectrum of 382 newly diagnosed MDS patients using targeted next-generation sequencing.

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Cell division cycle associated (CDCA) gene family plays an important role in cells. However, some researchers revealed that overexpression of CDCAs might contribute to the tumor progression in several cancers. Here, we analyzed the role of this gene family in hepatocellular carcinoma (HCC).

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Aim: The aim of this study was to evaluate the clinical and molecular characteristics of myelodysplastic syndrome (MDS) patients with monosomal karyotype (MK).

Methods: Eighty MDS patients with MK diagnosed between January 2010 and December 2018 were included in the retrospective study. Seventy-three had complex karyotype (CK) and 46 had very CK (vCK, ≥ 5 abnormalities).

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Patients with lower-risk myelodysplastic syndromes (LR-MDS) as defined by the International Prognostic Scoring System (IPSS) have more favorable prognosis in general, but significant inter-individual heterogeneity exists. In this study, we examined the molecular profile of 15 MDS-relevant genes in 159 patients with LR-MDS using next-generation sequencing. In univariate COX regression, shorter overall survival (OS) was associated with mutation status of ASXL1 (P = .

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Decitabine and low-dose chemotherapy are common treatments for intermediate and high risk myelodysplastic syndromes (MDS). In this study, we retrospectively assessed the efficacy and toxicity of the two regimens for MDS-refractory anemia with excess blasts (MDS-RAEB) patients. A total of 112 patients with a diagnosis of MDS-RAEB are included.

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We retrospectively studied 133 myelodysplastic syndrome patients receiving decitabine during January 2009 and September 2017. The dose of 15 mg/m/d ( = 83) and 20 mg/m/d ( = 50) had comparable overall response rates (ORR) (51.8% vs.

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We retrospectively analyzed 101 primary MDS patients with complex karyotype during January 2010 and April 2017.The median overall survival (OS) time was 13 (95% CI 9.98-16.

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According to 2008 WHO classification RARS is regarded as less than 5% blasts and more than 15% ring sideroblasts in the bone marrow. In 2016 WHO classification MDS-RS is revised as more than 15% ring sideroblasts or more than 5% ring sideroblasts in the presence of the SF3B1 mutation. In our study, we classified intracellular iron in bone marrow into four types according to the size and quantity of iron granules.

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It is controversial whether acute myeloid leukemia (AML) patients with 20-29% bone marrow (BM) blasts should be considered AML or myelodysplastic syndromes (MDS). We retrospectively studied 382 patients, including 108 AML with 20-29% BM blasts (AML20-29), 210 AML with ≥30% BM blasts (AML ≥ 30), and 64 MDS with 10-19% BM blasts (MDS-EB2). We found that AML20-29 were more similar to MDS-EB2 in terms of advanced age, less blood count, the increased presence of poor-risk cytogenetics.

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