This study aimed to evaluate the sensitivity of AI in screening acute leukemia and its capability to classify either physiological or pathological cells. Utilizing an acute leukemia orientation tube (ALOT), one of the protocols of Euroflow, flow cytometry efficiently identifies various forms of acute leukemia. However, the analysis of flow cytometry can be time-consuming work.
View Article and Find Full Text PDFBackground: Allogeneic hematopoietic stem cell transplantation (HSCT) is rarely recommended for unfit patients with newly diagnosed acute myeloid leukemia (AML). Patient survival can improve with venetoclax plus azacitidine (VEN plus AZA). However, the long-term outcome of this treatment strategy is still unsatisfactory.
View Article and Find Full Text PDFMyelodysplastic syndrome (MDS) immunity plays an important role in the proliferation and apoptosis of aberrant cells. Immune dysregulation has been studied in various prognostic subgroups. This study analyzed 60 patients with MDS via multidimensional flow cytometry to evaluate the expression of aberrant markers, such as CD7 and cytoplasmic CD3 on lymphocytes.
View Article and Find Full Text PDFBackground: Post-transplant cyclophosphamide (PT-Cy) and calcineurin inhibitors used in peripheral blood haplo-identical stem cell transplantation (haploSCT) increase the risk of acute/chronic graft-versus-host disease (GVHD). Whether ATG/PT-Cy is feasible for Asian patients undergoing haploSCT is unclear, and an optimal strategy for GVHD prophylaxis is needed.
Materials And Methods: We retrospectively analyzed 61 hematologic malignancy patients who underwent peripheral blood haploSCT using ATG/PT-Cy from January 2013 to December 2018.
Background: The treatment of recurrent or metastatic head and neck squamous-cell carcinoma (R/M HNSCC) remains challenging. Preclinical studies revealed that B cell depletion could modulate the microenvironment and overcome chemoresistance. We conducted a phase I study to evaluate the feasibility and safety of B cell depletion using the anti-CD20 antibody rituximab to treat HNSCC.
View Article and Find Full Text PDFTotal body irradiation (TBI) is frequently used in hematopoietic stem cell transplantation (HSCT) and is associated with many complications due to radiation injury to the normal cells, including normal stem cells. Nevertheless, the effects of TBI on the mesenchymal stromal stem cell (MSC) are not fully understood. Bone marrow-derived MSCs (BM-MSCs) isolated from normal adults were irradiated with 200 cGy twice daily for consecutive 3 days, a regimen identical to that used in TBI-conditioning HSCT.
View Article and Find Full Text PDFDeferasirox (DFX), in addition to its iron-chelation property, has marked anti-proliferative effects on cancer cells. However, the activity and mechanism by which DFX inhibits acute myeloid leukemia (AML) cells remain to be elucidated. Furthermore, the anti-leukemia effect of combining DFX with currently recommended agents doxorubicin (DOX) and cytosine arabinoside (Ara-C) has not been studied.
View Article and Find Full Text PDFMounting evidence supports the notion that inflammatory processes play a role in carcinogenesis, and interleukin-10 (IL10) is an important inflammatory cytokine. This study aimed to evaluate the contribution of IL10 A-1082G (rs1800896), T-819C (rs3021097) and A-592C (rs1800872) genotypes to the risk of childhood acute lymphoblastic leukemia (ALL) in Taiwan. Associations of these IL10 polymorphic genotypes with ALL risk were analyzed in 266 patients with childhood ALL patients and 266 non-cancer healthy controls by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) methodology.
View Article and Find Full Text PDFAdult patients with disseminated nontuberculous mycobacterial (dNTM) infections usually have severe immune system defects. Recently, several studies have shown that anti-IFN-γ autoantibodies may play an important role in the pathogenicity of dNTM infections. A considerable proportion of reported cases of anti-IFN-γ autoantibodies show either clinical or laboratory evidence of autoimmune disease.
View Article and Find Full Text PDFBackground: CD4(+)interferon (IFN)-γ(+) T cell (Th1) and CD4(+)interleukin (IL)-4(+) T cell (Th2) polarizations are crucial in the pathogenesis of graft-versus-host disease (GVHD). However, this hypothesis is largely based on animal experiments of Parent-into-F1 GVHD model. The causal relationship between kinetics of Th1, Th2 and associated cytokines and the clinical activity of GVHD in a real world situation remains unknown.
View Article and Find Full Text PDFThere is little evidence to demonstrate the importance of the Sonic hedgehog homolog (Shh) pathway to differentiation therapy in the treatment of hematological neoplasms. Here we characterize the changes in acute myelogenous leukemia (HL-60) cells after blocking the Shh pathway by an antagonist of Smoothened, cyclopamine. Cyclopamine induces apoptosis of HL-60 cells in a dose- and time-dependent manner with increased G0/G1 cycle fraction.
View Article and Find Full Text PDFBoth bone marrow hematopoietic cells (BM-HCs) and mesenchymal stem cells (BM-MSCs) may have cytogenetic aberrations in leukemic patients, and anti-leukemic therapy may induce cytogenetic remission of BM-HCs. The impact of anti-leukemic therapy on BM-MSCs remains unknown. Cytogenetic studies of BM-MSCs from 15 leukemic patients with documented cytogenetic abnormalities of BM-HCs were investigated.
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