Publications by authors named "Xian-min Song"

Article Synopsis
  • Chronic myelomonocytic leukemia (CMML) is a type of blood cancer where allogeneic hematopoietic stem cell transplantation (allo-HSCT) is currently the only curative treatment, although not suitable for all patients, and relapse is a common issue.
  • A nationwide study analyzed data from 238 CMML patients who underwent allo-HSCT across 27 medical centers and 307 patients from a research database to establish a risk scoring system to predict early relapse based on certain prognostic factors.
  • Four key factors were identified that significantly increased the risk of relapse: bone marrow blasts over 10%, age greater than 60 years, low hemoglobin levels, and specific gene mutations, leading to a scoring system that categor
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Background: People with diabetes mellitus (DM) suffer from multiple chronic complications due to sustained hyperglycemia, especially diabetic cardiomyopathy (DCM). Oxidative stress and inflammatory cells play crucial roles in the occurrence and progression of myocardial remodeling. Macrophages polarize to two distinct phenotypes: M1 and M2, and such plasticity in phenotypes provide macrophages various biological functions.

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Chronic myelomonocytic leukemia (CMML) is a clonal hematopoietic stem cell malignancy, and allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the only curable treatment. The outcomes after transplant are influenced by both disease characteristics and patient comorbidities. To develop a novel prognostic model to predict the post-transplant survival of CMML patients, we identified risk factors by applying univariable and multivariable Cox proportional hazards regression to a derivation cohort.

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Between 2020 and 2021, 31,525 hematopoietic stem cell transplantations (HSCTs) were reported to the Chinese Blood and Marrow Transplantation Registry Group throughout mainland China. In this report, we describe the activity and current trends for HSCT in China during the SARS-CoV-2 pandemic. In 2020, a total of 13,415 cases of HSCT were reported from 166 transplantation teams, and 75% (10,042 cases) were allogeneic HSCTs.

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Reactivation of fetal hemoglobin by editing the B-cell lymphoma/leukemia 11A (BCL11A) erythroid enhancer is an effective gene therapy for β-thalassemia. Using the CRISPR/Cas9 system, fetal γ-globin expression can be robustly reactivated to mitigate the clinical course of β-thalassemia. In our study, we found that the transfection efficiencies of CD34 hematopoietic stem/progenitor cells (HSPCs) were significantly and negatively correlated with the length of plasmids and greatly affected by the linearization of plasmids.

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Article Synopsis
  • Steroid-refractory acute graft-versus-host disease (SR-aGVHD) is a serious complication after stem cell transplants, and this study explored the effectiveness of the drug basiliximab in treating it.
  • In a real-world study involving 940 patients, basiliximab showed a high response rate of 79.4%, though combining it with other treatments increased infection rates without improving efficacy.
  • A new prognostic scoring system was developed to predict treatment responses, and machine learning techniques were utilized to optimize basiliximab therapy while managing infection risks.
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Between 2008 and 2019, 58,914 hematopoietic stem cell transplantations (HSCTs) were reported to the Chinese Blood and Marrow Transplantation Registry Group (CBMTRG) throughout China. In this report, we focus on 2019 data and describe current trends in HSCT in China. There was continued growth in transplant activity in China, with a rapid increase in haploidentical HSCT.

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With the dramatic improvements in outcomes following alternative donor hematopoietic stem cell transplantation (HSCT), interest in the use of alternative donors in severe aplastic anemia (SAA) is increasing. We conducted a multicenter prospective study to explore the efficiency and safety of upfront HSCT from a 6-8/8 HLA-matched unrelated donor (MUD) or 6-7/8 HLA-matched related donor (MRD) in acquired SAA patients under 40 years. Between August 2014 and July 2017, 115 patients were enrolled, including 48 (41.

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Objective: To establish a mouse mixed chimerism (MC) model of nonmyeloablative allogeneic bone marrow transplantation(allo-BMT) and explore its affecting factors.

Methods: The MC model was established by nonmyeloablative allo-BMT followed by high-dose post-transplant cyclophosphamide (PTCY). 123 mice in the experiments was retrospectively analyzed, and the factors related with the chimerism were explored with the univariate and multivariate logistic regression analysis.

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Article Synopsis
  • * The study identifies the role of the hemoglobin subunit beta pseudogene 1 (HBBP1) in increasing γ-globin production, and confirms this relationship through bioinformatics and experiments in specific cell lines.
  • * ELK1, a transcription factor, not only binds to and activates the HBBP1 promoter but also directly promotes γ-globin production, indicating a potential mechanism for reactivating γ-globin in β-thalassemia patients.
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To compare the efficacy and toxicity of a novel regimen called FBA, consisting of fludarabine, busulfan, and cytarabine, with the standard BuCy2 regimen for younger adult patients with acute myeloid leukemia, we conducted a prospective randomized phase II study. Patients in complete remission were randomly assigned to receive either the FBA (n = 56) or the BuCy2 regimen (n = 55). The difference in 100-day transplant-related mortality (TRM) was not statistically significant between the two arms (1.

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Acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML) are common types of acute leukemia in adults and cause low survival rate and poor outcome after 5 years despite high rates of complete remission (CR) with modern chemotherapeutic regimens. To understand the distinct mechanisms in leukemogenesis for ALL and AML and to identify markers for diagnosis and treatment, lncRNA and mRNA expression profiles of AML and ALL patients and healthy controls were generated using microarray analysis. For comparison, the differentially expressed mRNA functions were annotated using gene ontology (GO) and pathway analysis.

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Peripheral nerve injury (PNI) is a common disease, which results in a partial or total loss of motor, sensory and autonomic functions, leading to a decrease in quality of life. Schwann cells play a vital role in maintaining the peripheral nervous system and in injury and repair. Using immunohistochemistry, Western blot, calcium assay and bromodeoxyuridine (BrdU) proliferation assay, the present study clearly demonstrated that P2X7 receptors (R) were expressed in myelinating and non-myelinating Schwann cells in longitudinal sections of sciatic nerves.

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We retrospectively analyzed 449 patients with AML under the WHO classification of AML 2008 and probed implications of this classification in diagnosis and treatment of acute myeloid leukemia with myelodysplasia-related changes (AML-MRC) among them. The clinical presentations, biological features, treatments, and prognosis of patients diagnosed with AML-MRC were analyzed and compared with those of AML not otherwise specified (AML-NOS). In all patients, 115 (25.

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The prognosis of patients with refractory/relapsed acute myelogenous leukemia (rAML) is poor. Recent studies have shown that more transplant centers are choosing allogeneic peripheral blood stem cell transplantation (allo-PBSCT) for recipients, even with a higher leukemia burden. The purpose of the present study is to evaluate the outcome of rAML patients undergoing allo-PBSCT and to determine whether the disease status can predict the post-transplantation survival.

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Objective: To analyze the clinical and laboratory characteristics of hematological diseases associated with eosinophilia.

Methods: Karyotype analysis was performed by direct method and/or short-time culture of bone marrow cells for R-banding. Fluorescence in situ hybridization (FISH) was performed using PDGFRα, PDGFRβ and FGFR1 break-apart probes.

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Objective: To analyze the risk factors of allogeneic stem cell transplantation (allo-SCT) for chronic myeloid leukemia (CML) in an attempt to avoid transplant risks.

Methods: A total of 121 CML patients received allo-SCT were analyzed retrospectively. The risk analysis was based on the EBMT score (gratwohl score) which included donor type, age of patients, disease status before transplantation, donor/recipient sex match and time interval between diagnosis to allo-SCT.

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Objective: To explore the clinical and laboratory characteristics of myleodysplastic syndrome (MDS)/myeloproliferative neoplasm (MPN) with PDGFRβ abnormalities.

Methods: Chromosome specimens were prepared directly and/or short-time culture of bone marrow cells. Karyotyping was performed with R-binding technique.

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Objective: To evaluate the relationship of the absolute lymphocyte count (ALC) before or after autologous hematopoietic stem cell transplantation (AHSCT), and the infused CD34(+) count with the relapse, disease-free survival (DFS), overall survival (OS) in non-Hodgkin's lymphoma (NHL) patients.

Methods: A retrospective analysis of the relationship of the absolute lymphocyte count before (ALC-Pro) or 15 days after (ALC-15) the AHSCT, and the infused CD34(+) cell count with the relapse, DFS, OS of NHL.

Results: ALC-Pro and ALC-15 were related to NHL relapse.

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Objective: To develop a novel single nucleotide polymorphism (SNP)-PCR based method for quantitative detection of chimerism after allogeneic haemopoietic stem cell transplantation (allo-HSCT), and to explore its feasibility, accuracy and superiority.

Methods: 18 SNP loci were sereened to identify informative markers for detecting chimerism in each donor/recipient pair before transplantation. Then the chimerism rate of each informative marker was analyzed by real-time quantitative PCR (RQ-PCR).

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Objective: To evaluate the overall efficacy and transplant-related mortality (TRM) of related and unrelated allogeneic peripheral blood hematopoietic stem cell transplantation (allo-PBSCT) in chronic myeloid leukemia (CML) patients conditioned with fludarabine-busulfan (FB) reduced intensity regimen.

Methods: Forty-four patients received FB (Flud 30 mgxm(-2)xd(-1) x 5 d, BU 4 mgxkg(-1)xd(-1) x 3 d) conditioning followed by allo-PBSCT. Of them, 29 patients were transplanted with related donor and 15 unrelated donor (URD).

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Objective: To explore demographic characteristics, current diagnosis and treatment patterns of chronic myelogenous leukemia (CML) patients in China.

Methods: Data of hospitalized CML patients in 2005 whole year and outpatient information (July 1 through September 30, 2006) from 15 hospitals throughout China were analyzed.

Results: A total of 1824 CML cases were analyzed, including 722 inpatients and 1102 outpatients.

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Background: Biphenotypic acute leukemia is a rare disorder that is difficult to diagnose. It displays features of both myeloid and lymphoid lineage. There is still a lack of studies in biphenotypic acute leukemia in a Chinese population.

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Objective: To investigate the WHO classification, clinical and hematological features and risk group of International Prognostic Scoring System (IPSS) in patients with myelodysplastic syndrome (MDS).

Methods: The diagnosis and classification of MDS patients were defined according to the WHO classification. The clinical manifestations, hemogram, bone marrow biopsy and prognosis were retrospectively analyzed.

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