Publications by authors named "Zi-Jun Zhen"

Background: Treatment outcomes for acute promyelocytic leukemia (APL) have improved with all-trans-retinoic acid and arsenic trioxide, yet relapse remains a concern, especially in pediatric patients. The prognostic value of minimal residual disease (MRD) post-induction and the impact of arsenic levels during induction on MRD are not fully understood.

Objectives: To evaluate the relationship between post-induction MRD levels and relapse-free survival (RFS) in pediatric APL patients, and to investigate the correlation between blood arsenic concentration levels during induction therapy and MRD status.

View Article and Find Full Text PDF

Objective: To investigate the effect of genetic polymorphism of (rs1801133) on methotrexate (MTX) related toxicity in pediatric mature B-cell lymphoma patients.

Methods: Fifty-eight intermediate and high risk patients under 18 years of age with mature B-cell lymphoma who received 5 g/m MTX (24 h intravenous infusion) in Sun Yat-sen University Cancer Center from August 2014 to December 2021 were included, and their toxicity of high-dose MTX (HD-MTX) were monitored and analyzed.

Results: Among the 58 pediatric patients, the number of CC, CT, and TT genotypes for was 33, 19 and 6, respectively.

View Article and Find Full Text PDF
Article Synopsis
  • Realgar-Indigo Naturalis Formula (RIF), a traditional Chinese medicine, has shown effectiveness in treating adult acute promyelocytic leukemia (APL), but its efficacy and safety in children had not been studied.
  • A multicenter trial involving 176 pediatric patients compared RIF to intravenous arsenic trioxide (ATO), focusing on event-free survival (EFS) and treatment-related complications.
  • Results after 6 years indicated a high EFS of 97.6% in both groups, but the RIF group experienced shorter hospital stays, fewer infections, and potentially less cardiac toxicity, suggesting RIF could be a viable treatment alternative for pediatric APL.
View Article and Find Full Text PDF

The efficacy and safety on the addition of vincristine (VCR) and dexamethasone (DEX) pulses to maintenance therapy among childhood acute lymphoblastic leukemia (ALL) remain uncertain. Herein, we perform an open-label, multicentre, randomized, phase III clinical trial that was conducted at nine major medical centers in Guangdong Province, China. Patients were randomly assigned either the conventional maintenance therapy (control group, n = 384) or the VCR/DEX pulse (treatment group, n = 375).

View Article and Find Full Text PDF

Objectives: The prognostic significance of acute lymphoblastic leukemia (ALL) patients with central nervous system leukemia (CNSL) at diagnosis is controversial. We aimed to determine the impact of CNSL at diagnosis on the clinical outcomes of childhood B-cell ALL in the South China Children's Leukemia Group (SCCLG).

Methods: A total of 1,872 childhood patients were recruited for the study between October 2016 and July 2021.

View Article and Find Full Text PDF

Purpose: Our purpose was to compare long-term survival outcomes and sequelae between child and adult nasopharyngeal carcinoma (NPC) in the era of intensity modulated radiation therapy.

Methods And Materials: Data on 285 patients with NPC aged ≤18 years at diagnosis and treated with intensity modulated radiation therapy between January 2004 and November 2016 were retrospectively reviewed. A propensity score matching method was adopted to screen matched adult patients with NPC at a ratio of 1:3.

View Article and Find Full Text PDF

Introduction: Brain metastasis is common in relapsed neuroblastoma patients, but the characteristics of brain metastasis remain largely unknown. This study aimed to investigate the status of brain metastasis with neuroblastoma in South China.

Methods: In this retrospective case-based study, 106 patients with stage 4 neuroblastoma from the Department of Pediatric Oncology in Sun Yat-sen University Cancer Center between January 2004 and May 2013 were included.

View Article and Find Full Text PDF

For children with stage II testicular malignant germ cell tumors (MGCT), the survival is good with surgery and adjuvant chemotherapy. However, there is limited data on surgical results for cases in which there was no imaging or pathologic evidence of residual tumor, but in which serum tumor markers either increased or failed to normalize after an appropriate period of half-life time post-surgery. To determine the use of chemotherapy for children with stage II germ cell tumors, we analyzed the outcomes (relapse rate and overall survival) of patients who were treated at the Sun Yat-sen University Cancer Center between January 1990 and May 2013.

View Article and Find Full Text PDF
Article Synopsis
  • This study focused on primary central nervous system germ cell tumors (CNS-GCTs) in Chinese children and adolescents, highlighting their clinical characteristics and treatment results over a 10-year period from 2002 to 2012.
  • Of the 57 patients analyzed, the majority were male, with a median age of 12.8 years; most had non-germinomatous germ cell tumors (NGGCTs) and localized disease.
  • Results showed that patients who received multimodality therapies, like the PEB chemotherapy alongside surgery or radiotherapy, had significantly better survival rates compared to those who underwent monotherapy.
View Article and Find Full Text PDF

Objective: To evaluate the efficacy of a modified NHL-BFM-90 protocol in childhood and adolescence with Burkitt lymphoma (BL) and diffuse large B-cell lymphoma (DLBCL).

Methods: A total of 138 de novo patients with BL and DLBCL were enrolled. All patients were stratified into low (R1), intermediate (R2) and high risk (R3) groups based on the stage, chemotherapy response and LDH level, and treated with a modified NHL-BFM 90 protocol.

View Article and Find Full Text PDF

Lymphoma is seen in up to 30% of patients with X-linked lymphoproliferative disease (XLP), but cerebral vasculitis related with XLP after cure of Burkitt lymphoma is rarely reported. We describe a case of a 5-year-old boy with XLP who developed cerebral vasculitis two years after cure of Burkitt lymphoma. He had Burkitt lymphoma at the age of 3 years and received chemotherapy (non-Hodgkin's lymphoma-Berlin-Frankfurt-Milan-90 protocol plus rituximab), which induced complete remission over the following two years.

View Article and Find Full Text PDF
Article Synopsis
  • The study evaluated the safety of in vitro amplified HLA-haploidentical donor immune cell infusion (HDICI) in 12 children with various malignancies, primarily neuroblastoma, at Sun Yat-sen University Cancer Center between 2011 and 2012.
  • Out of the patients, a significant majority showed positive responses to treatment; 7 of 9 with neuroblastoma achieved complete response, while some experienced mild side effects like fever and emotional changes, with no severe adverse events reported.
  • The findings suggest that HDICI is a safe immunotherapy option for treating childhood cancers and indicate the need for further research into its efficacy.
View Article and Find Full Text PDF
Article Synopsis
  • * Most patients (63.2%) presented with advanced stage disease (III/IV), and the study found that around 57.8% of patients belonged to the germinal-center B-cell (GCB) subtype, while 42.2% were non-GCB.
  • * The modified B-NHL-BFM-90/95 treatment regimen showed an impressive 4-year event-free survival rate of 85.8%, demonstrating its effectiveness for this pediatric population.
View Article and Find Full Text PDF

Human leukocyte antigen (HLA)-E can contribute to the escape of cancer cells from host immune mechanisms. However, it is unknown whether HLA-E gene polymorphisms might play a role in cancer immune escape. This study aimed to evaluate the correlation between HLA-E gene polymorphisms and HLA-E expression in tumor tissue and determine the effects on clinical outcome of patients with stage III colorectal cancer.

View Article and Find Full Text PDF

Background And Objective: Precursor T lymphoblastic lymphoma (T-LBL) is a highly aggressive lymphoma. Myeloid antigen expression was found in some of the patients, and its clinical significance is worth studying. This study was to compare the clinical features, short-term efficacy and survival of T-LBL patients with or without myeloid antigen expression so as to evaluate its prognostic significance.

View Article and Find Full Text PDF

Background And Objective: Ewing's sarcoma family of tumor (ESFT) is aggressive. The optimal therapy modality for ESFT is still to be found. This study was to explore the clinical characteristics and therapy for ESFT.

View Article and Find Full Text PDF

Background And Objective: Non-Hodgkin's lymphoma (NHL) is a malignant disease originating from immune system. Studies of the possible relationship between NHL and immune suppression status are of great concern. Regulatory T cell (Treg) is a subtype of T cells that exert an immunosuppressive function.

View Article and Find Full Text PDF

Background And Objective: Modified BFM-90 regimen has significantly improved the outcome of lymphoblastic lymphoma in children and adolescents. Infection is the main side effect of this regimen, which may affect the treatment efficacy and prognosis without proper intervention. This study was to summarize the characteristics of the modified BFM-90 regimen related infection, and explore effective approaches to treat the infection.

View Article and Find Full Text PDF

Background And Objective: Anaplastic T-cell lymphoma in children and adolescents is an aggressive malignant non-Hodgkin's lymphoma (NHL). The optimal treatment regimen needs to be investigated. This study was to evaluate the efficacy of modified B-NHL-BFM-90 protocol on anaplastic T-cell lymphoma in children and adolescents.

View Article and Find Full Text PDF

Background: Lymphoblastic lymphoma (LBL) is a highly aggressive lymphoma, for which intensive chemotherapy is necessary. This study was designed to evaluate the efficacy and toxicity of a modified acute lymphoblastic leukemia (ALL)-Berlin-Frankfurt-Münster (BFM)-90-based protocol in Chinese children and adolescents with LBL.

Methods: From March 1998 to November 2006, 60 untreated patients with LBL (age <18 years) from a single institution were enrolled.

View Article and Find Full Text PDF

Background & Objective: Although the complete response rate of non-Hodgkin's lymphoma (NHL) is 70%-80% using modern comprehensive treatments, its relapse rate is about 40%-50%. The minimal residual disease (MRD) may be the reason of recurrence. This study was to detect dynamic changes of serum proteomic spectra in NHL patients before and after chemotherapy, thus to screen candidate markers for NHL.

View Article and Find Full Text PDF

Background & Objective: Primary central nervous system (CNS) germ cell tumors (GCTs) are rare malignant neoplasms with various histological types. Excluding pure germinoma and mature teratoma, other types carry a poor prognosis. Previous investigations focused on combined modality treatment including chemotherapy to improve survival.

View Article and Find Full Text PDF

Background & Objective: Burkitt's lymphoma is a kind of highly aggressive B-cell lymphoma. Its clinical characteristics are different between the endemic areas in Africa and the sporadic areas in America and Europe. There is no large-scale report concerning Burkitt's lymphoma in China yet.

View Article and Find Full Text PDF

Background & Objective: Dysfunction of tumor vessels renders high interstitial pressure, hypoxia and acidosis, causing the barrier of cytotoxic efficacy of chemotherapeutic agents. This study was to observe the dynamic alteration of vessel function in neuroblastoma (NB) after treatment of Avastin, and explore the correlation of tumor vessel function to synergistic antitumor effect of Avastin plus cyclophosphamide (CPM).

Methods: Human NB cells were incubated and transplanted into nude mice to form NB xenografts.

View Article and Find Full Text PDF
Article Synopsis
  • Burkitt's lymphoma is a challenging form of non-Hodgkin's lymphoma that often impacts young patients, making it essential to find effective chemotherapy treatments.
  • A study involving 31 children and adolescents tested the modified B-NHL-BFM-90 protocol, which includes several powerful cytotoxic drugs, aiming to improve survival rates.
  • Results showed a high success rate with 83.3% of patients achieving complete remission, and an event-free survival rate of 86.0% over three years, indicating the protocol's effectiveness, especially in lower-risk patients.
View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionl87nn4u8lg17pvbe121unoajdc65mur4): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once