Despite the introduction of 13-cis-retinoic acid (13-cis-RA) into the current chemotherapy, more than half of high-risk neuroblastoma patients have experienced tumor relapses driven by chemoresistant cancer stem cells (CSCs) that can be isolated by their ability to grow as spheres. Although aldehyde dehydrogenase (ALDH) has been used to characterize CSCs in certain cancers, ALDH remains elusive in neuroblastoma. In the present study, we determined ALDH activity and expression of its 19 isoforms in spheres and parental cells of neuroblastoma. ALDH activity and several ALDH isoforms were consistently induced in spheres of different neuroblastoma cells. While ALDH1A2, ALDH1L1 and ALDH3B2 expression was consistently induced in spheres and associated with the sphere and colony formation, only ALDH1A2 expression was significantly correlated with the poor prognosis of neuroblastoma patients. ALDH1A2 expression was further associated with the growth and undifferentiation of neuroblastoma xenografts and the resistance of neuroblastoma cells to 13-cis-RA. These results suggest that ALDH1A2 is involved in the regulation of CSC properties in neuroblastoma.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3892/ijo.2014.2801 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Incidence of Adrenal Insufficiency in Patients with High-Risk Neuroblastoma: A Single-Institution Analysis.
Pediatr Blood Cancer
January 2025
Division of Hematology/Oncology and BMT, Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio, USA.
Background: Neuroblastoma is the most common extracranial solid tumor in children, with about half of cases classified as high risk. Treatment varies by risk level, with high-risk patients undergoing aggressive multimodal therapy. While long-term survival has improved, survivors face significant risks of late treatment effects, including adrenal insufficiency.
View Article and Find Full Text PDFA Review on the Potential Effects of Curcumin in the Treatment of Neuroblastoma and its Underlying Mechanisms.
Curr Med Chem
January 2025
Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran.
Neuroblastoma (NB) is a rare embryonal neuroendocrine tumor that primarily affects children aged 5 years old or younger. In advanced stages, NB requires a multifaceted treatment approach, including a combination of surgery, chemo, and radiation therapy. However, high-risk NB is still associated with poor prognosis, long-term side effects, and a high chance of relapse.
View Article and Find Full Text PDFThe role of cell cycle-related genes in the tumorigenesis of adrenal and thyroid neuroendocrine tumors.
Heliyon
January 2025
Laboratory of General, Molecular and Population Genetics, Endocrinology Research Center, Moscow, 117292, Russia.
The molecular mechanisms underlying adrenal and thyroid neuroendocrine tumors, including their tumorigenesis, progression, and metastasis, involve unique pathways regulating cell cycle progression. To better understand these mechanisms and pathways, extensive in-depth research on cell cycle-related genes is necessary. This review aims to describe and interpret current single-cell RNA sequencing studies on neuroblastoma, medullary thyroid cancer, and pheochromocytoma tumors.
View Article and Find Full Text PDFStratification of Anatomical Imaging Features Between High-Risk and Non-High-Risk Groups in Neuroblastoma.
Cancer Control
January 2025
Department of Radiology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders, Chongqing, China.
Background: This study compared anatomical imaging features between high-risk and non-high-risk groups in neuroblastoma with at least one image-defined risk factor (IDRF). It also assessed the diagnostic performance of these features in identifying the high-risk group.
Methods: A retrospective analysis of neuroblastoma patients with at least one IDRF was conducted.
Silibinin's role in counteracting neuronal apoptosis and synaptic dysfunction in Alzheimer's disease models.
Apoptosis
January 2025
Department of Laboratory Animal Science, China Medical University, No. 77, Puhe Road, Shenbei New District, Shenyang, Liaoning Province, 110122, China.
This study investigates silibinin's capacity to mitigate Alzheimer's disease (AD) pathologies with a particular emphasis on its effects on apoptosis and synaptic dysfunction in AD models. Employing APP/PS1 transgenic mice and SH-SY5Y neuroblastoma cell lines, our research assessed the efficacy of silibinin in reducing amyloid-beta (Aβ) deposition, neuroinflammation, and neuronal apoptosis. Our results demonstrate that silibinin significantly decreases Aβ accumulation and neuroinflammation and robustly inhibits apoptosis in neuronal cells.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!