Publications by authors named "Hong Ghi Lee"

Purpose: This multicenter, open-label, phase II trial evaluated the efficacy and safety of bortezomib combined with dexamethasone for the treatment of relapsed/refractory cutaneous T-cell lymphoma (CTCL) in previously treated patients across 14 institutions in South Korea.

Patients And Methods: Between September 2017 and July 2020, 29 patients with histologically confirmed CTCL received treatment, consisting of eight 4-week cycles of induction therapy followed by maintenance therapy, contingent upon response, for up to one year. The primary endpoint was the proportion of patients achieving an objective global response.

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Background: Rituximab occasionally induces reactivation of hepatitis B virus (HBV) in patients with resolved HBV, at times with fatal consequences. The optimal duration of prophylactic antiviral therapy in this situation is unclear. We aimed to investigate the difference in HBV reactivation according to the duration of prophylactic tenofovir disoproxil fumarate (TDF) in patients with resolved HBV and receiving rituximab.

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Article Synopsis
  • - Tucidinostat, an oral HDAC inhibitor, was tested in a phase IIb study for its effectiveness and safety in treating relapsed/refractory peripheral T-cell lymphoma, with 55 patients enrolled between March 2017 and March 2019.
  • - The study found an overall response rate of 46%, with significant responses in various PTCL subtypes, and a notable 88% response rate in angioimmunoblastic T-cell lymphoma.
  • - While some patients experienced adverse events like thrombocytopenia and neutropenia, most were manageable, suggesting tucidinostat could be a promising new option for treatment.
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Cord blood transplantation (CBT) is a valuable alternative to bone marrow transplantation in adults without readily available donors. We conducted this study to investigate the feasibility of CBT for adult patients with acute leukemia with regards to impact of different conditioning and graft-versus-host disease (GVHD) prophylaxis regimens on clinical outcomes. From 16 centers in Korea, 41 acute myeloid leukemia (AML) and 29 ALL (acute lymphoblastic leukemia) patients undergoing CBT were enrolled.

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Background/aims: Compared with Western countries, chronic lymphocytic leukemia (CLL) rarely occurs in Asia and has different clinical characteristics. Thus, we aimed to evaluate the clinical characteristics, treatment outcomes, and prognostic significance of Korean patients with CLL.

Methods: We retrospectively analyzed 90 patients with CLL who had received chemotherapy at 6 centers in Korea between 2000 and 2012.

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Non-small-cell lung cancer (NSCLC) is the most common lung cancer subtype and accounts for more than 80% of all lung cancer cases. Epidermal growth factor receptor (EGFR) phosphorylation by binding growth factors such as EGF activates downstream prooncogenic signaling pathways including KRAS-ERK, JAK-STAT, and PI3K-AKT. These pathways promote the tumor progression of NSCLC by inducing uncontrolled cell cycle, proliferation, migration, and programmed death-ligand 1 (PD-L1) expression.

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Blinatumomab, a bispecific T cell-engaging antibody, has demonstrated efficacy for relapsed or refractory acute lymphoblastic leukemia (ALL). In this study, we evaluated the efficacy and toxicity of blinatumomab in adult Korean patients with relapsed or refractory Philadelphia-negative B cell precursor ALL. A total of 50 patients received blinatumomab treatment between June 2016 and August 2017 in Korea.

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Chromosomal translocations are rare in myelodysplastic syndrome (MDS) and their impact on overall survival (OS) and response to hypomethylating agents (HMA) is unknown. The prognostic impact of the revised International Prognostic Scoring System (IPSS-R) and for chromosomal translocations was assessed in 751 patients from the Korea MDS Registry. IPSS-R effectively discriminated patients according to leukaemia evolution risk and OS.

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Background: The incidence of follicular lymphoma (FL) varies according to geographic location. It is the second most common non-Hodgkin lymphoma in Western countries but has a very low incidence in Asia. Thus, no representative data are available for FL.

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Background: Among the currently available prognostic models for diffuse large B-cell lymphoma (DLBCL), we investigated to determine which is most adoptable for DLBCL patients treated with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) followed by upfront autologous stem cell transplantation (auto-SCT).

Methods: We retrospectively evaluated survival differences among risk groups based on the International Prognostic Index (IPI), the age-adjusted IPI (aaIPI), the revised IPI (R-IPI), and the National Comprehensive Cancer Network IPI (NCCN-IPI) at diagnosis in 63 CD20-positive DLBCL patients treated with R-CHOP followed by upfront auto-SCT.

Results: At the time of auto-SCT, 74.

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Azacitidine (AZA) is commonly used in patients with myelodysplastic syndrome (MDS). To determine the role of AZA before allogeneic stem cell transplantation (allo-SCT), we conducted a prospective study of AZA pre-treatment followed by allo-SCT in patients with higher-risk MDS. Twenty-one patients who were scheduled for their third to sixth cycle of AZA pre-treatment followed by allo-SCT were enrolled.

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Background: We investigated factors that influence outcomes in diffuse large B-cell lymphoma (DLBCL) patients treated with rituximab combined with the CHOP regimen (R-CHOP) followed by upfront autologous stem cell transplantation (Auto-SCT).

Methods: We retrospectively evaluated survival differences between subgroups based on the age-adjusted International Prognostic Index (aaIPI) and revised-IPI (R-IPI) at diagnosis, disease status, and positron emission tomographic/computerized tomographic (PET/CT) status at transplantation in 51 CD20-positive DLBCL patients treated with R-CHOP followed by upfront Auto-SCT.

Results: Patients had either stage I/II bulky disease (5.

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Background/aims: Human epidermal growth factor receptor 2 (Her2/neu) is an important target for treatment of gastric cancer using trastuzumab and Helicobacter pylori is a well-known risk factor of gastric cancer. We investigated the association of Her2/neu overexpression with Helicobacter pylori and other clinicopathologic factors in gastric cancer patients who underwent curative resection.

Methodology: Her2/neu immunohistochemistry was performed in gastric cancer patients who underwent curative gastrectomy or endoscopic submucosal dissection.

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Background: This study aimed to survey the clinical spectrum of diffuse large B-cell lymphoma (DLBCL) in terms of epidemiology, pathologic subtypes, stage, and prognostic index as well as treatment outcomes.

Methods: In 2007-2008, 13 university hospitals evenly distributed in the Korean peninsula contributed to the online registry of DLBCL at www.lymphoma.

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2-Chloro-10-[3(-dimethylamino)propyl]phenothiazine mono hydrochloride (chlorpromazine; CPZ) is an antipsychotic agent that was originally developed to control psychotic disorders. The cytotoxic properties of the CPZ are well known, but its mechanism of action is poorly understood. In this study, we investigated the role of apoptosis and autophagy in CPZ-induced cytotoxicity in U-87MG glioma cells.

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The present study aimed to directly compare the efficacy and safety of azacitidine and decitabine in patients with myelodysplastic syndromes (MDS). We compared the overall response rate (ORR) (complete responses, partial responses, marrow complete responses, and haematological improvements), overall survival (OS), event-free survival (EFS), time to leukaemic transformation, and adverse outcomes between azacitidine and decitabine. To minimize the effects of treatment selection bias in this observational study, adjustments were made using the propensity-score matching method.

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Non-small cell lung cancer (NSCLC) is the most deadly type of cancer worldwide. Although a number of therapies are used in NSCLC treatment, their therapeutic efficacy remains low. Lenalidomide was originally approved for use in patients with myelodysplastic syndromes, which are associated with 5q deletions, and multiple myeloma.

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Interleukin-11 (IL-11), which belongs to a class of IL6-type cytokines, plays an important role in inflammation, motility and invasion in cancer. The ras mutation is frequently found in human cancer, but little is known regarding the transcriptional activation of the IL-11 gene by the Ras signal pathway in tumour cells. In this study, we investigated the role of Ras in the regulation of IL-11 using two different cell model systems: mouse NIH3T3 cells over-expressing oncogenic Ras with a tet-on system and Capan-1 human pancreatic carcinoma cells harbouring a K-ras mutation.

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Article Synopsis
  • Pneumocystis carinii pneumonia (PCP) is often seen in patients with weakened immune systems, like those with AIDS or blood cancers, but is rarely reported in solid tumor patients.
  • This report discusses three gastric cancer patients who developed PCP after receiving dexamethasone as an antiemetic during chemotherapy, with varying doses and durations of treatment.
  • The study suggests that PCP can be effectively managed in gastric cancer patients if healthcare providers maintain a high level of clinical suspicion and initiate prompt treatment, and it provides foundational data on dexamethasone dosage related to PCP risk.
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Because plasma cell leukemia (PCL) is a rare and distinct variant among plasma cell dyscrasias, recent clinical and cytogenetic studies have been performed in different ethnic groups to define the characteristics of these PCL patients. As far as we know, IGH rearrangements involving t(11;14) and (14;16) are significantly more frequent in PCL than in myeloma patients. However, PCL cases associated with t(6;14)(p21;q32) or IGH-CCND3 rearrangement are extremely rare in the literature; only one PCL case with t(6;14) has been documented.

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Resveratrol is a plant phenolic phytoalexin that has been reported to have antitumor properties in several types of cancers. In particular, several studies have suggested that resveratrol exerts antiproliferative effects against A549 human non-small cell lung cancer cells; however, its mechanism of action remains incompletely understood. Deregulation of microRNAs (miRNAs), a class of small, noncoding, regulatory RNA molecules involved in gene expression, is strongly correlated with lung cancer.

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