12,316 results match your criteria: "Ataxia-Telangiectasia"
J Adv Res
December 2024
Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China. Electronic address:
Introduction: The efficacy of radiotherapy in colorectal cancer (CRC) is often limited by radiation resistance. Ataxia telangiectasia mutated (ATM) is well known for its role in repairing double-strand DNA breaks within the DNA damage response (DDR) pathway. However, whether ATM mediates other mechanisms contributing to radiation resistance remains insufficiently investigated.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
October 2024
School of Traditional Chinese Pharmacy, China Pharmaceutical University Nanjing 211198, China.
In order to study the effect of the simplified formula of Jinfukang Oral Liquid(ALG-12) on renal tubular injury induced by cisplatin(DDP), 48 C57 mice were divided into control group, model group, DDP group, and DDP combined with low, medium, and high dose groups of ALG-12. The mice were administered for 16 days after the establishment of the subcutaneous Lewis lung cancer heterotopic transplant tumor model of mice. The pathological changes, serum creatinine(Scr), blood urea nitrogen(BUN), kidney injury molecule 1(Kim-1), neutrophil gelatinase-associated lipocalin(NGAL), malondialdehyde(MDA), and total superoxide dismutase(T-SOD) in renal tissue and the degree of renal tubular cell apoptosis were analyzed to investigate the effect of ALG-12 on renal injury induced by DDP treatment on non-small cell lung cancer(NSCLC).
View Article and Find Full Text PDFCancer Commun (Lond)
December 2024
Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, P. R. China.
Background: The majority of patients with prostate cancer (PCa) exhibit intrinsic resistance to immune checkpoint blockade (ICB) following radiotherapy (RT). This resistance is generally attributed to the limited antigen presentation of heterogeneous cells within tumors. Here, we aimed to isolate and characterize these diverse subgroups of tumor post-RT to understand the molecular mechanisms of their resistance to ICB.
View Article and Find Full Text PDFBrain
December 2024
Department of Neuromuscular diseases, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK.
Retinoblastoma (RB) proteins are highly conserved transcriptional regulators that play important roles during development by regulating cell-cycle gene expression. RBL2 dysfunction has been linked to a severe neurodevelopmental disorder. However, to date, clinical features have only been described in six individuals carrying five biallelic predicted loss of function (pLOF) variants.
View Article and Find Full Text PDFInt J Mol Sci
November 2024
Engelhardt Institute of Molecular Biology, the Russian Academy of Sciences, 119991 Moscow, Russia.
Assessments of breast cancer (BC) risk in carriers of pathogenic variants identified by gene panel testing in different populations are highly in demand worldwide. We performed target sequencing of 78 genes involved in DNA repair in 860 females with BC and 520 age- and family history-matched controls from Central Russia. Among BC patients, 562/860 (65.
View Article and Find Full Text PDFExp Cell Res
December 2024
Bingöl University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, 12000, Bingöl, Türkiye. Electronic address:
Genomic instability is often caused by deficiencies in DNA damage repair pathways, making therapeutic targeting of DDR beneficial for cancer patients with specific DDR functions. ATM kinase plays a critical role in various cellular processes and its deficiency increases sensitivity to DDR-targeted agents in different cancers. Recent studies highlight ATM inhibition as a potential clinical target, with AZD1390 being a notable ATM inhibitor due to its potent and selective inhibition, ability to accumulate at DNA breaks.
View Article and Find Full Text PDFFront Genet
November 2024
Department of Neonatology and NICU, Wenling Maternal and Child Healthcare Hospital, Wenling, Zhejiang, China.
Ataxia-Telangiectasia (A-T) is a rare, autosomal recessive disorder characterized by progressive cerebellar ataxia, oculocutaneous telangiectasia, immunodeficiency, and increased cancer risk. Mutations in the ATM gene, which is essential for DNA damage repair, underlie this condition. This study reports a novel homozygous frameshift mutation (ATM_ex20 c.
View Article and Find Full Text PDFNeoplasia
December 2024
Departments of Gynecological Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China. Electronic address:
Background: Radiotherapy is a major modality for esophageal cancer (ESCA) treatment, yet radioresistance severely hampers its therapeutic efficacy. Ubiquitin-specific peptidase 14 (USP14) is a novel deubiquitinase and can mediate cancer cells' response to irradiation, although the underlying mechanism remains unclear, including in ESCA.
Methods: To evaluate the expression of USP14 in ESCA tissues or cells, we used RNA-Seq, immunoblotting, co-immunoprecipitation (Co-IP), ubiquitination, quantitative real-time polymerase chain reaction (qRT-PCR), and immunofluorescence assays in this investigation.
Magy Onkol
December 2024
Molekuláris Genetikai Laboratórium, Dél-pesti Centrumkórház, Országos Hematológiai és Infektológiai Intézet, Budapest, Hungary.
This review presents the latest molecular genetic diagnostic and clinical aspects related to clonal hematopoiesis of indeterminate potential (CHIP). CHIP belongs to the continuously expanding group of pre-cancerous conditions, increasingly recognized in routine patient care due to the development of molecular diagnostic tools and the increase in life expectancy. The incidence of CHIP mutations increases with age (1-2% in individuals aged 50 years, 15-45% in those aged 80 years).
View Article and Find Full Text PDFDermatol Reports
November 2024
Dermatology Department, Caen University Hospital, Caen.
Ataxia telangiectasia (AT) is a rare autosomal recessive primary immunodeficiency disorder (PID) resulting from a mutation in the ATM gene involved in DNA repair. We describe the case of a young girl with cutaneous granulomas that developed after childhood vaccinations. Immunohistochemistry revealed granulomas induced by the rubella virus vaccine.
View Article and Find Full Text PDFTherap Adv Gastroenterol
December 2024
Department of Surgery and Interventional Gastroenterology, The University of Texas.
Pancreatic cancer serves as the third leading cause of cancer-associated morbidity and mortality in the United States, with a 5-year survival rate of only 12% with an expected increase in incidence and mortality in the coming years. Pancreatic ductal adenocarcinomas constitute most pancreatic malignancies. Certain genetic syndromes, including Lynch syndrome, hereditary breast and ovarian cancer syndrome, hereditary pancreatitis, familial adenomatous polyposis, Peutz-Jeghers syndrome, familial pancreatic cancer mutation, and ataxia telangiectasia, confer a significantly higher risk.
View Article and Find Full Text PDFNeurol Sci
December 2024
Department of Neurology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India.
DNA Repair (Amst)
November 2024
Division of Molecular Oncological Pharmacy, Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan. Electronic address:
DNA double-strand breaks (DSBs) trigger the recruitment of repair protein and promote signal transduction through posttranslational modifications such as phosphorylation. After DSB induction, ataxia telangiectasia mutated (ATM) phosphorylates H2AX on chromatin surrounds the mega-base pairs proximal to the DSBs. Advanced super-resolution microscopic technology has demonstrated the formation of γH2AX nano foci as a unit of nano domain comprised of multiple nucleosomes.
View Article and Find Full Text PDFPlant Physiol Biochem
December 2024
School of Life Sciences and Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung, 40132, West Java, Indonesia. Electronic address:
Conspecific plant growth is inhibited by extracellular fragments in a concentration-dependent manner. Although several reports have addressed this self-DNA inhibition, the underlying mechanism remains unclear. In this investigation, we evaluated the progression of cell cycle of rice roots in responding to extracellular-self DNA (esDNA).
View Article and Find Full Text PDFWorld J Pediatr
December 2024
Pediatrics and Adolescent Medicine, Faculty of Medicine, University of Augsburg, 86156, Augsburg, Germany.
Cureus
November 2024
Department of Radiation Oncology, Nuvance Health, Norwalk, USA.
Mol Genet Genomics
December 2024
Department of Medical Genetics, School of Medicine, Iranshahr University of Medical Sciences, Iranshahr, Iran.
SLAS Discov
December 2024
Charles River Laboratories, Saffron Walden, UK. Electronic address:
PLoS One
December 2024
National Cancer Institute (NCI), National Institutes of Health (NIH), Experimental Immunology Branch, Bethesda, MD, United States of America.
Autophagy
December 2024
Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Alzheimer disease (AD), a prevalent neurodegenerative condition in the elderly, is marked by a deficit in macroautophagy/autophagy, leading to intracellular MAPT/tau accumulation. While ISG15 (ISG15 ubiquitin like modifier) has been identified as a regulator of selective autophagy in ataxia telangiectasia (A-T), its role in AD remains unexplored. Our study reveals elevated ISG15 levels in the brains of patients with sporadic AD and AD models and .
View Article and Find Full Text PDFJ Med Chem
December 2024
Institute for Applied Cancer Science (IACS), The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States.
One of the hallmarks of cancer is high levels of DNA replication stress and defects in the DNA damage response (DDR) pathways, which are critical for maintaining genomic integrity. Ataxia telangiectasia and Rad3-related protein (ATR) is a key regulator of the DDR machinery and an attractive therapeutic target, with multiple ATR inhibitors holding significant promise in ongoing clinical studies. Herein, we describe the discovery and characterization of ART0380 (), a potent and selective ATR inhibitor with a compelling in vitro and in vivo pharmacological profile currently undergoing Phase 2 clinical studies in patients with advanced or metastatic solid tumors as monotherapy and in combination with DNA-damaging agents (NCT04657068 and NCT05798611).
View Article and Find Full Text PDFSemin Pediatr Neurol
December 2024
UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA. Electronic address:
Ataxia telangiectasia (AT) is a rare neurocutaneous syndrome that results from biallelic pathogenic variants in the ataxia telangiectasia mutated (ATM) gene, named for its characteristic cerebellar ataxia in the early toddler years and variable oculocutaneous telangiectasias in the school age years. While its name only hints at neurologic and cutaneous manifestations, this multisystemic disorder also has important immunologic, oncologic, respiratory, and endocrinologic implications. This article will review the function of the ATM gene, the neurologic manifestations of AT, non-neurologic complications, mimickers of AT (including other disorders of defective DNA repair), and the realm of therapeutic research for AT.
View Article and Find Full Text PDFFASEB J
December 2024
Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland.
Solar radiation is the main source of human exposure to UV rays, which is the major carcinogen in skin cancers by inducing DNA damage. Skin cells repair these damages by activating the DNA damage response (DDR) to safeguard genome integrity, thereby preventing skin cancers. Peroxisome proliferator-activated receptor beta (PPARβ), a druggable transcription factor, is involved in the development of UV-dependent skin cancers, although its role is not mechanistically elucidated.
View Article and Find Full Text PDFPlant J
December 2024
Institut de biologie moléculaire des plantes du CNRS, 12 rue du Général Zimmer, 67000, Strasbourg, France.
Neurobiol Dis
December 2024
Goethe University Frankfurt, University Hospital, Clinic of Neurology, Exp. Neurology, Heinrich Hoffmann Str. 7, 60590 Frankfurt am Main, Germany. Electronic address: