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Studies of methylated CpG ODN from subsp. in a murine model: Implications for treatment of human allergic disease.
Allergy Asthma Proc
January 2025
From the Department of Microbiology-Immunology, Georgetown University Medical Center, Washington, D.C.
Allergen immunotherapy (AIT) is currently the most effective immunologic form of treatment for patients with atopic allergic diseases commonly used by allergist/immunologists to reduce allergic symptoms by gradually desensitizing the immune system to specific allergens. Currently, the primary mechanism of AIT emphasizes the crucial role of immune regulation, which involves a shift from a T-helper type 2 (Th2) cell response, which promotes allergy, to a T-regulatory (Treg) cell population, which inhibits the allergic inflammatory response through the production of immunosuppressive cytokines interleukin 10 and transforming growth factor β, which play pivotal roles in suppressing the allergic reaction. In a series of previous in vitro and in vivo experiments, we have demonstrated the capacity of synthetic methylated cytosine-phosphate-guanine (CpG) oligodeoxynucleotide (ODN) moieties as well as methylated genomic DNA ODN motifs from Bifidobacterium longum subspecies infantis to activate Treg cell differentiation in contrast to the unmethylated ODN moiety, which promotes proinflammatory responses driven by Th17-mediated responses.
View Article and Find Full Text PDFMETTL1 mediates PKM m7G modification to regulate CD155 expression and promote immune evasion in colorectal cancer.
J Transl Med
December 2024
Department of Cancer Diagnosis and Treatment Center, Affiliated Hospital of Jiangnan University, Wuxi, China.
Background: Colorectal cancer (CRC) is characterized by poor responsiveness to immune evasion and immunotherapy. RNA 7-methylguanine (m7G) modification plays a key role in tumorigenesis. However, the mechanisms by which m7G-modified RNA metabolism affects tumor progression are not fully understood, nor is the contribution of m7G-modified RNA to the CRC immune microenvironment.
View Article and Find Full Text PDFDNMT1-driven methylation of RORA facilitates esophageal squamous cell carcinoma progression under hypoxia through SLC2A3.
J Transl Med
December 2024
Department of Thoracic Surgery, School of Clinical Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Henan University, No.7, Wei Wu Road, Jinshui District, Zhengzhou, Henan, 450003, China.
Background: The RAR-related orphan receptor alpha (RORA), a circadian clock molecule, is highly associated with anti-oncogenes. In this paper, we defined the precise action and mechanistic basis of RORA in ESCC development under hypoxia.
Methods: Expression analysis was conducted by RT-qPCR, western blotting, immunofluorescence (IF), and immunohistochemistry (IHC) assays.
Precision Assessment of Anti-NMDA Receptor Encephalitis: A Case Report on Integrating Clinical Course, Immunophenotyping, and Comprehensive Symptomatology in a Pediatric Patient With Adjunctive Hydrogen Therapy.
In Vivo
December 2024
Rheumatology/Immunology and Allergy, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C.;
Background/aim: Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis, though rare, is the most common form of autoimmune encephalitis, predominantly affecting young individuals, particularly females. Standard treatments include corticosteroids, intravenous immunoglobulins (IVIG), and plasmapheresis, with rituximab recommended for those unresponsive to first-line therapies. However, reliable biomarkers for clinical assessment remain elusive.
View Article and Find Full Text PDFOrthotopic meningioma rat model exhibits morphological and immunohistochemical congruency and epigenetic concordance with benign primary patient-derived tumors.
Sci Rep
December 2024
Department of Neurosurgery, Odense University Hospital, J. B. Winsløvs Vej 4, Odense C, 5000, Denmark.
Meningiomas are the most common primary central nervous system tumor. Clinical trials have failed to support effective medical treatments, despite initially promising animal studies. A key issue could be that available experimental models fail to mimic the clinical situation.
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