Publications by authors named "Zhi-dong Wang"

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  • Distant metastasis significantly contributes to the high mortality rate in gastric cancer patients, with anoikis serving as a natural barrier against it.
  • This study identified growth differentiation factor 15 (GDF15) as a crucial factor that helps gastric cancer cells resist anoikis by promoting protective autophagy.
  • Additionally, it was found that activating transcription factor 2 (ATF2) regulates the expression of GDF15, highlighting both ATF2 and GDF15 as potential targets for new treatment strategies to combat gastric cancer metastasis.
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  • A phase II trial was conducted to test the efficacy of a high-dose decitabine treatment (MegaDAC) for patients with relapsed/refractory acute myeloid leukemia (R/R AML) who did not respond to other targeted therapies, enrolling 70 patients from 2019 to 2023.
  • Despite previous treatments, all patients who underwent MegaDAC after allogeneic hematopoietic cell transplantation (allo-HCT) achieved minimal residual disease (MRD) negativity, showing a significant reduction in genetic abnormalities without major toxicity.
  • The results indicate promising long-term outcomes for patients, with a 2-year cumulative incidence of relapse of 29.6% and overall survival rate of 58.6%, suggesting
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Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a widely used treatment for a variety of hematopoietic disorders, and also provides a valuable platform for investigating the development of donor-derived immune cells in recipients post-HSCT. The immune system remodels from the donor to the recipient during allo-HSCT. However, little is known about the cell profile alterations as donor homeostasis rebalances to recipient homeostasis following HSCT.

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  • Small nucleolar RNAs (snoRNAs) were once thought to mainly assist in modifying ribosomal RNA for ribosome production, but they also play roles in various biological processes beyond this traditional view.
  • Recent findings indicate that snoRNAs participate in the DNA damage response (DDR), a crucial mechanism for preserving genomic stability and preventing diseases.
  • The review discusses snoRNA biosynthesis, their regulatory mechanisms, their involvement in DDR, and their potential applications in diagnosing and treating diseases, highlighting their importance in genomic stability and pathology.
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  • Graft-versus-host disease (GVHD) is a major complication after allogeneic stem cell transplants, primarily caused by donor T cells attacking the recipient's tissues, and traditional treatments come with serious side effects.
  • Human amniotic epithelial stem cells (hAESCs) show promise as a new therapy due to their immune-regulating properties, effectively reducing GVHD symptoms in a mouse model and improving survival rates.
  • The study reveals that hAESCs work by promoting the growth of regulatory T cells and inhibiting harmful T cell subsets, while also maintaining anti-leukemia effects, suggesting hAESCs could be a safer alternative for treating GVHD in transplant patients.
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Multiple factors have engaged in the progression of thyroid cancer (TC). Recent studies have shown that viral infection can be a critical factor in the pathogenesis of TC. Viruses, such as Epstein-Barr virus (EBV), hepatitis C virus (HCV), human immunodeficiency virus (HIV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), may play an essential role in the occurrence, development, and even prognosis in TC.

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Graft failure is a fatal complication following allogeneic stem cell transplantation where a second transplantation is usually required for salvage. However, there are no recommended regimens for second transplantations for graft failure, especially in the haploidentical transplant setting. We recently reported encouraging outcomes using a novel method (haploidentical transplantation from a different donor after conditioning with fludarabine and cyclophosphamide).

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  • Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a key treatment for acute lymphoblastic leukemia (ALL), and this study examined the significance of isolated flow cytometry-positive central nervous system (CNS) involvement before the transplant.
  • Among 1406 ALL patients, those with isolated FCM-positive CNS involvement had significantly higher rates of relapse and lower leukemia-free survival compared to those with negative CNS involvement.
  • The study developed a scoring system to categorize patients into risk groups based on pre-HSCT factors, highlighting that patients with isolated CNS involvement face a greater risk of recurrence following transplantation.
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In patients with t(8;21) acute myeloid leukemia (AML) with recurrent measurable residual disease (MRD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT), pre-emptive interferon-α therapy and donor lymphocyte infusion are noneffective in 30%-50% of patients. Avapritinib is a novel tyrosine kinase inhibitor targeting KIT mutations. We retrospectively report about 20 patients with t(8;21) AML and KIT mutations treated with avapritinib after allo-HSCT with MRD and most failing to respond to immunotherapy.

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Background: The management of acetabular quadrilateral surface fractures remains challenging for surgeons, and the treatment options for such fractures remain controversial. Quadrilateral surface surgery is a complex procedure involving combined approaches, and the quality of fracture reduction closely depends upon the surgical procedure, as well as the skill and experience of the surgeon. This study aimed to explore the clinical effects of applying an anterior pelvic wall locking plate (APWLP) through the lateral-rectus approach for treating acetabular fractures involving the quadrilateral surface.

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  • The study aimed to compare gray matter volume (GMV) and white matter volume (WMV) between Parkinson's disease (PD) patients and healthy individuals, and investigate any links between structural and functional brain abnormalities.
  • Utilizing MRI techniques, researchers examined 180 PD patients and 58 healthy controls, identifying notable differences in brain structure and activity.
  • Findings revealed that PD patients had reduced whole-brain GMV, particularly in key areas like the right superior temporal gyrus and left frontotemporal space, and these structural changes correlated with age and motor function impairment, suggesting potential imaging biomarkers for disease progression.
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Background: The "postural instability/gait difficulty" (PIGD) and "tremor-dominant" (TD) motor subtypes of Parkinson's disease (PD) differ in their clinical manifestations. The neurological basis of these differences is unclear.

Methods: We performed voxel-based morphometric analysis and measured amplitudes of low-frequency fluctuation (ALFF) on 87 PIGD patients and 51 TD patients.

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Purpose: Excessive daytime sleepiness (EDS) is a common non-motor symptom in Parkinson's disease (PD), but its neuropathology remains elusive. Our goal is to explore the potential neural substrates of EDS in a large sample of individuals with PD.

Methods: We recruited 48 PD patients with and 87 PD patients without EDS.

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Introduction: Pain in Parkinson's disease is poorly understood, and most patients with pain do not respond to dopaminergic drugs. We aimed to explore the mechanisms of dopa-responsive and -unresponsive pain by comparing such patients against patients without pain in terms of neural activity and functional connectivity in the brain.

Methods: We prospectively examined 31 Parkinson's patients with dopa-responsive pain, 51 with dopa-unresponsive pain and 93 without pain using resting-state functional magnetic resonance imaging.

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As relational integration performance can be used to predict reasoning ability, the present study aimed to provide electrophysiological evidence for numerical inductive reasoning. Number series with two levels of relational complexity were utilized, including simple and hierarchical problems (such as "15-16-17" versus "15-16-18"). Two tasks were adopted: a relational integration task that required to determine whether the numerical relations were changed across numbers; a number series task that required to determine whether a hidden rule was acquired (Experiment 1) or to predict the subsequent number (Experiment 2), whose phases were divided as rule searching, rule discovery, and rule following.

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The abnormal expressions of minichromosome maintenance protein 2 (MCM2) are closely related to the development of various kinds of cancers. We aimed to explore the functions and potential molecular mechanisms of MCM2 gene in cholangiocarcinoma (CCA) cell lines (Huh28 and RBE). First, the cell counting kit-8 (CCK-8), plate clone formation, transwell and invasion assays showed that MCM2 promotes the proliferation, migration and invasion of CCA cells.

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Purpose: The etiology of constipation in Parkinson's disease is largely unknown. The aim of this study was to explore changes in regional neural activity and functional connections associated with constipation in a large cohort of individuals with Parkinson's disease.

Methods: We prospectively recruited 106 patients with Parkinson's disease with constipation and 73 patients with Parkinson's disease without constipation.

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Gut acute graft-versus-host disease (aGVHD) is a serious complication after allogeneic hematopoietic stem cell transplantation (allo-HSCT) and is associated with high mortality. Mucosa-associated invariant T (MAIT) cells are a group of innate-like T cells enriched in the intestine that can be activated by riboflavin metabolites from various microorganisms. However, little is known about the function or mechanism of action of MAIT cells in the occurrence of gut aGVHD in humans.

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Late-onset severe pneumonia (LOSP) is defined as severe pneumonia developing during the late phase of allogeneic hematopoietic stem cell transplantation (allo-HSCT). Because of the high mortality in patients with LOSP, it is important to identify prognostic factors. In this study, we aimed to develop a risk score system with broad applicability that can help predict the risk of LOSP-associated mortality.

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We performed a retrospective analysis to investigate dynamic peri-hematopoietic stem cell transplantation (HSCT) minimal/measurable residual disease (MRD) on outcomes in patients with T-cell acute lymphoblastic leukemia (T-ALL). A total of 271 patients were enrolled and classified into three groups: unchanged negative MRD pre- and post-HSCT group (group A), post-MRD non-increase group (group B), and post-MRD increase group (group C). The patients in group B and group C experienced a higher cumulative incidence of relapse (CIR) (42% vs.

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Haploidentical stem cell transplantation (haplo-SCT) has demonstrated encouraging results in younger patients. There is also an increasing need for haplo-SCT in older patients. However, the high risk of treatment-related mortality (TRM) in older patients is still a major concern.

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Article Synopsis
  • HHV-6 reactivation is common in patients after unmanipulated haploidentical stem cell transplants, with a study monitoring 102 patients revealing a 25.5% incidence within 100 days post-transplant.
  • The study found that 19.9% of patients developed HHV-6 viremia, typically occurring around 14 days after transplantation, with most patients experiencing viremia lasting about 7 days.
  • Although HHV-6 reactivation was linked to a higher risk of grade 2-4 graft-versus-host disease, it did not significantly affect overall survival, disease-free survival, or non-relapse mortality rates.
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Background: Hypertrophic scar is a common complication in would healing process, and how to effectively prevent and treat it has been a hot and difficult research issue. Previous studies have showed that botulinum toxin type A (BTA) has effects on the prevention and treatment of hypertrophic scar, but little is known about the specific mechanisms.

Objective: This study aimed to explore the potential mechanisms of BTA on the inhibition of hypertrophic scar formation.

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