A few patients with ataxia telangiectasia survive into the 3rd decade. In the central nervous system, dilated meningeal veins have been noted in a few cases but as a rule the vasculature in both brain and spinal cord appears normal. We present the case of the longest reported surviving patient with ataxia telangiectasia who died at the age of 34 years and showed numerous vascular malformations with gliosis and haemosiderin in the cerebral white matter and spinal cord. These are similar to the features described in three previously reported long surviving cases of ataxia telangiectasia. In addition, however, numerous corpora amylacea were present, a finding not previously described. Also presented is the magnetic resonance imaging (MRI) scan which was of diagnostic-value; there have been very few MRI scans recorded in ataxia telangiectasia. It showed lesions consistent with vascular malformations in cerebral white matter with surrounding abnormal tissue consistent with gliosis. Gross cerebellar atrophy was also demonstrated. It is significant that MRI scans 6 months apart at the age of 32 years showed progression of the lesions.
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http://dx.doi.org/10.1016/s0967-5868(98)90295-8 | DOI Listing |
FASEB J
January 2025
Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, Beijing, China.
Chemoresistance is an ongoing challenge for colorectal cancer (CRC) that significantly compromises the anti-tumor efficacy of current drugs. Identifying effective targets or drugs for overcoming chemoresistance is urgently needed. Our previous study showed that WFDC3 served as a tumor suppressor that hindered CRC metastasis.
View Article and Find Full Text PDFJ Clin Immunol
January 2025
Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children´s Medical Center, Tehran University of Medical Sciences, 62 Qarib St., Keshavarz Blvd, Tehran, 14194, Iran.
Background: Ataxia telangiectasia mutated (ATM) kinase plays a critical role in DNA double-strand break (DSB) repair. Ataxia telangiectasia (A-T) patients exhibit abnormalities in immunoglobulin isotype expression and class switch recombination (CSR). This study investigates the role of residual ATM kinase expression and activity in the severity of A-T disease.
View Article and Find Full Text PDFCancer Chemother Pharmacol
January 2025
Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.
Background: ATR is an apical DDR kinase activated at damaged replication forks. Elimusertib is an oral ATR inhibitor and potentiates irinotecan in human colorectal cancer models.
Methods: To establish dose and tolerability of elimusertib with FOLFIRI, a Bayesian Optimal Interval trial design was pursued.
Nat Commun
January 2025
Department of Hematopoietic Biology & Malignancy, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Cells undergo tens of thousands of DNA-damaging events each day. Defects in repairing double-stranded breaks (DSBs) can lead to genomic instability, contributing to cancer, genetic disorders, immunological diseases, and developmental defects. Cohesin, a multi-subunit protein complex, plays a crucial role in both chromosome organization and DNA repair by creating architectural loops through chromatin extrusion.
View Article and Find Full Text PDFOncol Lett
March 2025
Program in Translational Medicine, Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samutprakarn 10540, Thailand.
Cholangiocarcinoma (CCA) is a biliary tract carcinoma that is challenging to treat due to its heterogeneity and limited treatment options. Genetic alterations in DNA damage response (DDR) pathways and homologous recombination (HR) defects are common in CCA. This has prompted interest in the use of ataxia telangiectasia and Rad3-related protein (ATR) and poly(ADP-ribose) polymerase (PARP) inhibitors to treat CCA.
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