Pathol Oncol Res
Department of Oncology, Medical and Health Science Center, University of Debrecen, Nagyerdei krt.98, 4012 Debrecen, Hungary.
Published: June 2009
Gefitinib and erlotinib are both selective EGFR tyrosine kinase inhibitors (EGFR-TKIs) that have produced responses in a small subgroup of lung cancer patients. The strongest evidence for a role of EGFR in the biology of glioblastoma stems from clinical trials in which 15-20% of recurrent glioblastoma patients experienced significant tumour regression in response to these small-molecule EGFR kinase inhibitors. We examined the protein-kinase domain of the EGFR gene, EGFR protein expression and EGFR gene amplification in 20 cases of recurrent GBMs. EGFR protein over-expression was found in 65% of cases. EGFR protein over-expression was associated with EGFR gene amplification in 35% of cases, and with high polysomy in 15% of cases. No mutations were found in the TK domain of the EGFR gene. Our results confirm that mutations in the kinase domain are absent in recurrent GBM, and this might be a preponderant factor in the lack of major clinical responses of TKIs in GBM, recent studies have suggested that responsiveness to EGFR kinase inhibitors was strongly associated with coexpression of EGFRvIII and PTEN. Further prospective validation of EGFRvIII and PTEN as predictors of the clinical response to EGFR kinase inhibitors in recurrent GBM is strongly anticipated.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1007/s12253-008-9082-4 | DOI Listing |
Inflamm Res
January 2025
Department of Nephrology, First Affiliated Hospital of Naval Medical University, Shanghai Changhai Hospital, Shanghai, China.
Background: Chronic inflammation is well recognized as a key factor related to renal function deterioration in patients with diabetic kidney disease (DKD). Neutrophil extracellular traps (NETs) play an important role in amplifying inflammation. With respect to NET-related genes, the aim of this study was to explore the mechanism of DKD progression and therefore identify potential intervention targets.
View Article and Find Full Text PDFJ Transl Med
January 2025
Department of Oncology, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, 210003, China.
Background: Almonertinib is the initial third-generation EGFR-TKI in China, but its resistance mechanism is unknown. Cancer-associated fibroblasts (CAFs) are essential matrix components in the tumor microenvironment, but their impact on almonertinib resistance is unknown. This study aimed to explore the correlation between CAFs and almonertinib resistance in non-small cell lung cancer (NSCLC).
View Article and Find Full Text PDFJ Orthop Surg Res
January 2025
Department of Orthopaedics, Qilu Hospital of Shandong University, No.107, Wenhuaxi Road, Lixia District, Jinan, Shandong Province, 250012, China.
Background: Ferroptosis was involved in the pathogenesis of intervertebral disc degeneration (IVDD). However, the exact mechanism of IVDD associated with ferroptosis still required deeper studies.
Method: The differentially expressed genes (DEGs) in rat lumbar disc tissue between the control and IVDD group treated with IL-1β were detected by RNA sequencing (RNA-seq).
Clin Transl Med
January 2025
Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
Background: Fabry disease is an X-linked lysosomal storage disorder due to a deficiency of α-galactosidase A (α-gal A) activity. Our goal was to correct the enzyme deficiency in Fabry patients by transferring the cDNA for α-gal A into their CD34+ hematopoietic stem/progenitor cells (HSPCs). Overexpression of α-gal A leads to secretion of the hydrolase; which can be taken up and used by uncorrected bystander cells.
View Article and Find Full Text PDFCytokine Growth Factor Rev
January 2025
Center for Precision Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan; Department of Pathology, College of Medicine, China Medical University, Taichung, Taiwan. Electronic address:
Receptor tyrosine kinases (RTKs) are membrane sensors that monitor alterations in the extracellular milieu and translate this information into appropriate cellular responses. Epidermal growth factor receptor (EGFR) is the most well-known model in which gene expression is upregulated by mitogenic signals through the activation of multiple signaling cascades or by nuclear translocation of the full-length EGFR protein. RON (Receptuer d'Origine Nantatise, also known as macrophage stimulating 1 receptor, MST1R) has recently gained attention as a therapeutic target for human cancer.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!
© LitMetric 2025. All rights reserved.